CA2207607C - Photo-erasable data processing forms - Google Patents

Photo-erasable data processing forms Download PDF

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Publication number
CA2207607C
CA2207607C CA002207607A CA2207607A CA2207607C CA 2207607 C CA2207607 C CA 2207607C CA 002207607 A CA002207607 A CA 002207607A CA 2207607 A CA2207607 A CA 2207607A CA 2207607 C CA2207607 C CA 2207607C
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CA
Canada
Prior art keywords
indicia
data processing
mutable
colorant
processing form
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CA002207607A
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French (fr)
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CA2207607A1 (en
Inventor
Ronald Sinclair Nohr
John Gavin Macdonald
Michael Wilfred Mosehauer
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Kimberly Clark Worldwide Inc
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Kimberly Clark Worldwide Inc
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Publication of CA2207607A1 publication Critical patent/CA2207607A1/en
Application granted granted Critical
Publication of CA2207607C publication Critical patent/CA2207607C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/40Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
    • B41M5/46Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography characterised by the light-to-heat converting means; characterised by the heat or radiation filtering or absorbing means or layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14Security printing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/28Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat- decomposable compounds, e.g. gas- liberating
    • B41M5/282Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat- decomposable compounds, e.g. gas- liberating using thermochromic compounds
    • B41M5/284Organic thermochromic compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43MBUREAU ACCESSORIES NOT OTHERWISE PROVIDED FOR
    • B43M11/00Hand or desk devices of the office or personal type for applying liquid, other than ink, by contact to surfaces, e.g. for applying adhesive
    • B43M11/06Hand-held devices
    • B43M11/08Hand-held devices of the fountain-pen type
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C65/00Compounds having carboxyl groups bound to carbon atoms of six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
    • C07C65/32Compounds having carboxyl groups bound to carbon atoms of six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups containing keto groups
    • C07C65/38Compounds having carboxyl groups bound to carbon atoms of six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups containing keto groups having unsaturation outside the aromatic rings
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/76Esters of carboxylic acids having a carboxyl group bound to a carbon atom of a six-membered aromatic ring
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08BPOLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/0006Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
    • C08B37/0009Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid alpha-D-Glucans, e.g. polydextrose, alternan, glycogen; (alpha-1,4)(alpha-1,6)-D-Glucans; (alpha-1,3)(alpha-1,4)-D-Glucans, e.g. isolichenan or nigeran; (alpha-1,4)-D-Glucans; (alpha-1,3)-D-Glucans, e.g. pseudonigeran; Derivatives thereof
    • C08B37/0012Cyclodextrin [CD], e.g. cycle with 6 units (alpha), with 7 units (beta) and with 8 units (gamma), large-ring cyclodextrin or cycloamylose with 9 units or more; Derivatives thereof
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08BPOLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/0006Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
    • C08B37/0009Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid alpha-D-Glucans, e.g. polydextrose, alternan, glycogen; (alpha-1,4)(alpha-1,6)-D-Glucans; (alpha-1,3)(alpha-1,4)-D-Glucans, e.g. isolichenan or nigeran; (alpha-1,4)-D-Glucans; (alpha-1,3)-D-Glucans, e.g. pseudonigeran; Derivatives thereof
    • C08B37/0012Cyclodextrin [CD], e.g. cycle with 6 units (alpha), with 7 units (beta) and with 8 units (gamma), large-ring cyclodextrin or cycloamylose with 9 units or more; Derivatives thereof
    • C08B37/0015Inclusion compounds, i.e. host-guest compounds, e.g. polyrotaxanes
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0071Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0097Dye preparations of special physical nature; Tablets, films, extrusion, microcapsules, sheets, pads, bags with dyes
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00Inks
    • C09D11/16Writing inks
    • C09D11/17Writing inks characterised by colouring agents
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00Inks
    • C09D11/30Inkjet printing inks
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00Inks
    • C09D11/30Inkjet printing inks
    • C09D11/36Inkjet printing inks based on non-aqueous solvents
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
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    • G03G9/00Developers
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    • G03G9/0825Developers with toner particles characterised by their structure; characterised by non-homogenuous distribution of components
    • GPHYSICS
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    • G03G9/00Developers
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    • G03G9/087Binders for toner particles
    • G03G9/08775Natural macromolecular compounds or derivatives thereof
    • G03G9/08777Cellulose or derivatives thereof
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    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K1/00Methods or arrangements for marking the record carrier in digital fashion
    • G06K1/12Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching
    • G06K1/121Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching by printing code marks
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    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00Record carriers for use with machines and with at least a part designed to carry digital markings
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    • G06K19/06009Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
    • G06K19/06046Constructional details
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
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    • Y10S283/00Printed matter
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Abstract

A data processing form for use with photo-sensing apparatus that detect the presence of indicia at indicia-receiving locations on the form. The form is composed of a sheet of carrier material and plurality of indicia-receiving locations. The indicia-receiving locations are defined by a mutable colored composition including a mutable colorant and an ultraviolet radiation transorber such that the indicia-receiving locations are adapted to become substantially undetectable by photo-sensing apparatus upon irradiating the colored composition with ultraviolet radiation at a dosage level sufficient to irreversibly mutate the colorant. The colored composition may be irradiated with radiation in the ultraviolet region of the ultraviolet spectrum. Also disclosed is a data processing form that includes a plurality of mutable indicia, at least a portion of which are adapted to become substantially undetectable by photo-sensing apparatus upon irradiation with an effective dosage level of ultraviolet radiation such as, for example, ultraviolet radiation. One embodiment of the present invention encompasses a method for improving the readability of a data processing form used in photo-sensing apparatus. Another embodiment of the present invention encompasses a method of modifying indicia on a data processing form used in photo-sensing apparatus.

Description

PHOTO-ERASABLE DATA PROCESSING FORMS
Cross-reference to Related Application This application is related to Canadian patent File No.
2,168,727 filed on July 29, 1994.
Technical Field The present invention relates generally to the field of optically scanned documents. More particularly, the present invention relates to a data processing document of the type used with photo-sensing apparatus that detect the presence of indicia at indicia-receiving locations on the document.
Background of the Invention Optical or conductive mark scanning systems of several types used to read and record large amounts of data very quickly are well known in the prior art. Such systems are typically used to process data from documents such as, for example, sheets of paper, cards, labels, tags, or other material. Generally speaking, some types of these documents have a plurality of pre-printed control marks (sometimes called "timing marks") in a control mark column (sometimes called a "timing track") used to trigger the system to scan or "read" certain data marks (also called "indicia") or data response areas (also called "indicia-receiving locations"). The data response areas are placed in a specified relation to the control marks. Usually, a firmware programmable read only memory (PROM) or software template and data processing means are used to keep track of control marks and data marks. The processing means will normally be programmed to work with a specific document format (e.g. it will expect a certain number of control marks and a certain pattern of data response areas in relation to the control marks).

PCT/iTS95/15469 At least two distinct optical scanning methods are used to detect -the presence of indicia (e. g., data marks), control marks or other marks in data response areas (i.e., indicia-receiving locations). In one method, a light source placed at one surface of a document illuminates the area to be read and a photo-sensor placed at the opposite surface of the document is used to sense light that is transmitted through the document. The photo-sensor detects differences between the levels of light transmitted through marked and unmarked areas.
In another method, both the light source and the photo-sensor are located on the same side of the document that is scanned. The photo-sensor detects differences between the levels of light reflected by marked and unmarked areas when they are illuminated. In both methods, the output of the photo-sensor is processed electronically to determine the . presence or absence of a mark.
Both methods have limitations that may affect the ability of a photo-sensing apparatus to accurately detect the information on data processing forms. One limitation is related to the placement of indicia (e.g., data marks) in the data response areas (i.e., indicia-receiving locations). Each indicia-receiving location may be outlined or otherwise designated by some sort of marking printed on certain types of data processing forms. In some embodiments, indicia is placed in the indicia-receiving locations by darkening the designated area or by printing or writing a response in alpha-numeric characters or other such characters as may be required.
Inaccurate responses may be generated by the photo-sensing apparatus if the markings that designate the indicia-receiving location interfere with the proper detection of indicia. As an example, scannable answer sheets, census forms and the like are filled-out by providing indicia within designated indicia-receiving locations. If the indicia overlap any markings used to designate the indicia-receiving-locations, they might be improperly read by the photo-sensor.
Conventional photo-sensing apparatus, which may incorporate computer software and/or hardware, are often configured to I

inspect or "look" precisely at areas designated to contain indicia and not at other areas in order to discriminate between indicia (e. g., data marks), stray indicia (e. g., stray data marks), non-indicia (e. g., material not intended to be detected by photo-sensing apparatus) , smudges, flaws in the document, or the like. Moreover, data processing forms may have applications where only a few indicia-receiving locations are expected to contain indicia. In those situations, photo-sensing apparatus can be designed or programmed to ignore indicia sensed in other areas. It is important that the data processing form be as free of clutter or markings which may interfere with the processing in order to simplify the design of the photo-sensing apparatus and to enhance the accuracy of processing. Accordingly, it is very desirable to eliminate or otherwise render undetectable any text, graphics, position markers (e.g., marks defining indicia-receiving locations), or other markings that should not be detected by the photo-sensing apparatus prior to processing.
Another limitation of conventional data processing form relates to the indicia. In many situations, it may be desirable to quickly and efficiently erase or modify the indicia that are to be detected by photo-sensing apparatus.
For example, data processing forms containing indicia (e. g., dots, shapes, alpha-numeric characters, lines, bars or the like) in formats, such as, for example, coupons, packaging labels, parts labels, bar code labels or tags, assembly-line work-in-progress labels or tags, or other items are used in such large numbers that the cost of reprinting or replacing the forms on each item simply to modify the indicia could become significant.
' Accordingly, there is a need for a data processing form that can be used with a photo-sensing apparatus without the problem of indicia overlapping the markings used to designate indicia-receiving locations. There is also a need for a data processing form that permits quick and efficient erasure or modification of the indicia that are to be detected by photo-sensing apparatus.
j Summary of the Invention ' The present invention addresses the needs described above . by providing, in one embodiment, a data processing form for use with photo-sensing apparatus that detect the presence of indicia at indicia-receiving locations on the form. Generally speaking, the data processing form is composed of: 1) a sheet of carrier material; and 2) a plurality of indicia-receiving locations on at least a first surface of the sheet. The indicia-receiving locations are defined by a colored composition including a mutable colorant and an ultraviolet radiation transorber. When the colored composition is irradiated with ultraviolet radiation at a dosage level sufficient to irreversibly mutate the colorant, the indicia-receiving locations are adapted to become substantially undetectable by photo-sensing apparatus. Desirably, the colored composition is irradiated with radiation in the ultraviolet region of the electromagnetic spectrum having a wavelength range between approximately 100 to 375 nanometers.
The present invention also relates to a data processing form that includes a plurality of mutable indicia. At least a - portion of the indicia are formed from a colored composition including a mutable colorant and an ultraviolet radiation transorber so that the indicia are adapted to become substantially undetectable by photo-sensing apparatus upon irradiation with an effective dosage level of ultraviolet radiation.
According to the invention, the data processing form may include text or graphics formed from the colored composition that includes a mutable colorant and an ultraviolet radiation transorber.
The data processing form may be configured in any conventional format. For example, the data processing form may be a transmitted-read form or a reflective-read form. The carrier material component of the data processing form may be substantially opaque, substantially translucent or ~ substantially transparent.
WO 9619776 PGTlUS95/15469 The colored composition used in the data processing form of the present invention includes a colorant and an ultraviolet radiation transorber. The colorant, in the presence of the ultraviolet radiation transorber, is adapted, upon exposure of ' S the transorber to ultraviolet radiation, to be mutable. The ultraviolet radiation transorber is adapted to absorb ultraviolet radiation and interact with the colorant to effect the irreversible mutation of the colorant. It is desirable that the ultraviolet radiation transorber absorb ultraviolet radiation at a wavelength of from about 4 to about 400 nanometers. It is even more desirable that the ultraviolet radiation transorber absorb ultraviolet radiation at a wavelength of 100 to 375 nanometers.
The colored composition which includes a colorant and an ultraviolet radiation transorber may also contain a molecular includant having a chemical structure which defines at least one cavity. The molecular includants include, but are not limited to, clathrates, zeolites, and cyclodextrins. Each of the colorant and ultraviolet radiation transorber is associated with one or more molecular includant. For example, the colorant may be at least partially included within a cavity of ' the molecular includant and the ultraviolet radiation transorber may be associated with the molecular includant outside of the cavity. As another example, the ultraviolet radiation transorber may be covalently coupled to the outside of the molecular includant.
The present invention encompasses a method for improving the readability of a data processing form used in photo-sensing apparatus. In general, the method includes the step of providing a data processing form that includes a sheet of carrier tnateriai and indicia located at a plurality of indicia-receiving locations on at least a first surface of the sheet.
At least a portion of the indicia-receiving locations are defined by a mutable colored composition including a mutable colorant and an ultraviolet radiation transorber. Next, the colored composition is irradiated with ultraviolet radiation at a dosage level sufficient to irreversibly mutate the colorant 1JV0 96/x,9776 PCT/US95/I5469 so that the indicia-receiving locations are substantially undetectable by photo-sensing apparatus, leaving the indicia to be detected.
The present invention also encompasses a method of modifying indicia on a data processing form used in photo-sensing apparatus. In general, the method includes that step of providing a data processing form that includes a sheet of carrier material and a plurality of indicia at indicia receiving locations on at least a first surface of the sheet.
At least a portion of the indicia are mutable indicia formed from a colored composition comprising a mutable colorant and an ultraviolet radiation transorber. Next, the colored composition is irradiated with ultraviolet radiation at a dosage level sufficient to irreversibly mutate the colorant so that at least a portion of the mutable indicia are substantially undetectable by photo-sensing apparatus.
Desirably, the colored composition is irradiated with radiation in the ultraviolet region of the electromagnetic spectrum at a wavelength of_ from about 100 to about 375 nanometers. In some embodiments of the invention, it is desirable that the ultraviolet radiation is incoherent, pulsed ' ultraviolet radiation from a dielectric barrier discharge excimer lamp.
These and other objects, features and advantages of the present invention will become apparent after a review of the following detailed description of the disclosed embodiments and the appended claims.
Brief Description of the Figures FIG. 1 illustrates an ultraviolet radiation transorber/
mutable colorant/ molecular includant complex wherein the mutable colorant is malachite green, the ultraviolet radiation transorber is Irgacure 184 (1-hydroxycyclohexyl phenyl ketone), and the molecular includant is f3-cyclodextrin.
FIG. 2 illustrates an ultraviolet radiation transorber/
mutable colorant/ molecular includant complex wherein the ' mutable colorant is victories pure blue BO (Basic Blue 7) , the r WO 96/19776 PCT/US95/15469 ultraviolet radiation transorber is Irgacure 184 (1-hydroxycyclohexyl phenyl ketone), and the molecular includant is i3-cyclodextrin.
FIG. 3 is an illustration of several 222 nanometer excimer . 5 lamps arranged in four parallel columns wherein the twelve numbers represent the locations where twelve intensity measurements were obtained approximately 5.5 centimeters from the excimer lamps.
FIG. 4 is an illustration of several 222 nanometer excimer lamps arranged in four parallel columns wherein the nine numbers represent the locations where nine intensity measurements were obtained approximately 5.5 centimeters from the excimer lamps.
FIG. 5 is an illustration of several 222 nanometer excimer lamps arranged in four parallel columns wherein the location of the number "1" denotes the location where ten intensity measurements were obtained from increasing distances from the lamps at that location. (The measurements and their distances from the lamp are summarized in Table 7.) FIG. 6 is an illustration of an exemplary photo-sensing apparatus based on the transmitted-read method.
' FIG. 7 is an illustration of an exemplary photo-sensing apparatus based on the reflective-read method.
FIG. 8 is an illustration of a portion of an exemplary data processing form in which indicia-receiving locations are defined by a mutable colored composition.
FIG. 9 is an illustration of a portion of an exemplary data processing form depicted in FIG. 8 after the colorant in the mutable colored composition has been-irreversibly mutated.
FIG. 10 is an illustration of an exemplary data processing form in wr~ich a portion of the indicia are formed from a mutable colored composition.
FIG. 11 is an illustration of an exemplary data processing form depicted in FIG. 10 after the colorant in the mutable colored composition has been irreversibly mutated.

tW0 96/I9776 PCT/US95/15469 Detailed Description of the Invention The present invention relates in general to a data processing form for use with photo-sensing apparatus that detect the presence of indicia at indicia-receiving locations on the form.
The term "data processing form" and such variations including "scannable form", "readable form", "scannable document" used herein refer to a document, sheet, label, card, tag, sticker or the like intended to hold information for detection by photo-sensing apparatus. A data processing form may exist as an individual object or it may be combined with or attached to items such as, for example, containers, vehicles, parts, inventory, eauipment, packages and the like. Data processing forms can have many applications, including but not limited to, answer sheets, census forms, medical forms, identification cards, admission cards, admission tickets, credit cards, monetary instruments, checks, transportation tickets, coupons, bar code labels, bills, tags, or the like.
As used herein, the term "indicia" refers to markings such as, for example, dots, shapes, alpha-numeric characters, lines, bars or the like that have sufficient size, contrast and/or . intensity to be detectable by photo-sensing apparatus.
As used herein, the term "indicia-receiving location"
refers to a discrete area of a data processing form that defines a space where indicia may be placed for detection by photo-sensing apparatus. Such an area may be single, plural, ordered or patterned and can be referenced to control or reference marks used by a photo-sensing apparatus. Inks, dyes and/or other materials may be used to distinguish such an area from other areas of a data processing form.
As used herein, the term "photo-sensing apparatus" refers to conventional optical or conductive indicia (e. g., mark?
scanning systems used to read data from data processing forms.
Generally speaking, at least two distinct "photo-sensing" or optical scanning methods are used to detect the presence of indicia or other marks placed in response areas on data processing forms. In the transmitted-read method, a light _ g -IWO 96/19776 PCTIUS951154b9 source placed at one surface of a document illuminates ~.n area to be read and a photo-sensor placed at the opposite surface of the document is used to sense light that is transmitted through the document at that area. When a mark is present, generally S little or no light is transmitted through the document. In contrast, the absence of a mark means that significant light will pass through the document. The transmitted light is detected by the photo-sensor, and its output is processed by electrical circuitry to determine the presence or absence of a mark. Alternatively, and/or additionally, the wavelength or other characteristics of the light may be modified by transmission through indicia (e. g., marks) to create detectable differences. Exemplary transmitted-read methods are disclosed in U.S. Patent No. 4,114,028. In the. reflective-read method, both the light source and the photo-sensor are located on the same side of the document that is scanned. The photo-sensor receives reflected light when an area without a mark is illuminated. When a marked area is illuminated, the light sensor receives little or no reflected light. Again, the output of the photo-sensor is processed electronically to determine the presence or absence of a mark. Alternatively, . and/or additionally, the wavelength or other characteristics of the light may be modified by reflecting off indica (e. g., marks) to create detectable differences. Systems using reflective-read methods are disclosed by U.S. Patent Nos.
3,676,690 and 4,300,123.
As used herein, the term "substantially undetectable"
refers to a state when indicia (or other markings such as, for example, outlines of indicia-receiving locations) on~ a aata processing form that are detectable by a photo-sensing apparatus have been changed sufficiently so they fail to provide the same detectable response to transmitted or reflected light as unchanged indicia.
The term 'composition" and such variations as "colored composition" which are used herein with reference to a data processing form refer to a colorant, and an ultraviolet radiation transorber. When reference is being made to a WO 96/9776 PG"T/US95/15469 colored composition which is adapted for a specific application (e.g., a toner to be used in an electrophotographic process or a printing fluid to be used in a printing process employed in the preparation of the data processing forms), the term "composition-based" is used as a modifier to indicate that the material (e.g., a toner or a printing fluid) includes a -colorant, an ultraviolet radiation transorber, and, optionally, a molecular includant.
As used herein, the term "colorant" is meant to include, without limitation, any material which, in the presence of an ultraviolet radiation transorber, is adapted upon exposure to ultraviolet radiation to be mutable. It is contemplated that radiation at wavelengths other than the ultraviolet region of the electromagnetic spectrum may be used to effect such mutation. The colorant typically will be an organic material, such as an organic dye or pigment, including toners and lakes.
Desirably, the colorant will be substantially transparent to, i.e., will not significantly interact with, the ultraviolet radiation (or other effective wavelength of electromagnetic radiation) to which it is exposed. The term is meant to include a single material or a mixture of two or more materials.
Organic dye classes include, by way of illustration only, triaryl methyl dyes, such as Malachite Green Carbinol base {4 (dimethylamino)-a-[4-(dimethylamino)phenyl]-a-phenyl-benzene methanol}, Malachite Green Carbinol hydrochloride [N-4-Tl4-(dimethylamino)phenyl]-phenylmethylene]-2,5-cyclohexyldien-1-ylidene]-N-methyl-methanaminium chloride or bis[~-(dimethylamino)phenyl]phenylmethylium chloride}, and Malachite Green oxalate {N-4- [ [4- (dimethylamino)phenyl]phenylmethylene] -2,5-cyclohexyldien-1-ylidene]-N-methylmethanaminium chloride or bis[p-(dimethylamino)phenyl]phenylmethylium oxalate}, Victoria Pure Blue BO {N- (4- [ [4-diethyl amino) phenyl] - (4- (ethylamino) - ~
1-naphthalenyl]methylene]-2,5-cyclohexadien-1-yliden]-N-ethyl-ethanaminium chloride}, and Basic Fusion {4-[(4-aminophenyl)-(4-imino-2,5-cyclohexadien-1-ylidene)methyl]-benzenamine monohydrochloride}; monoazo dyes, such as Cyanine Black, T
Chrysoidine [Basic Orange 2; 4-(phenylazo)-1,3-benzenediamine monohydrochloride], and i3-Naphthol Orange; thiazine dyes, such as Methylene Green, zinc chloride double salt [3,7-bis(dimethylamino)-6-nitrophenothiazin-5-ium chloride, zinc 'S chloride double salt]; oxazine dyes, such as Lumichrome (7,8-dimethylalloxazine); naphthalimide dyes, such as Lucifer Yellow CH {6-amino-2-[(hydrazinocarbonyl)amino]-2,3-dihydro-1,3-dioxo-1H-benz[de]isoquinoline-5,8-disulfonic acid dilithium salt}; azine dyes, such as Janus Green B {3-(diethylamino)-7-[[4-(dimethylamino)phenyl]azo]-5-phenylphenazinium chloride};
cyanine dyes, such as Indocyanine Green {Cardio-Green or Fox Green; 2-[7-[1,3-dihydro-1,1-dimethyl-3-(4-sulfobutyl)-2H-benz[e]indol-2-ylidene]-1,3,5-heptatrienyl]-1,1-dimethyl-3-(4-sulfobutyl)-1H-benz[e]indolium hydroxide inner salt sodium salt}; indigo dyes, such as Indigo {Indigo Blue or Vat Blue 1;
2-(1,3-dihydro-3-oxo-2H~indol-2-ylidene)-1,2-dihydro-3H-indol-3-one}; coumarin dyes, such as 7-hydroxy-4-methylcoumarin (4-methylumbelliferone); benzimidazole dyes, such as Hoechst 33258 [bisbenzimide or 2-(4-hydroxyphenyl)-5-(4-methyl-1-pipera-zinyl)-2,5-bi-1H-benzimidazole trihydrochloride pentahydrate];
paraquinoidal dyes, such as Hematoxylin {Natural Black 1;
7, llb-dihydrobenz [b] indeno [1, 2-d] pyran-3, 4, 6a, 9, 10 (6H) -pentol) ;
fluorescein dyes, such as Fluoresceinamine (5-aminofluorescein); diazonium salt dyes, such as Diazo Red RC
(Azoic Diazo No. 10 or Fast Red RC salt; 2-methoxy-5-chlorobenzenediazonium-chloride, zinc chloride double salt);
azoic diazo dyes, such as Fast Blue BB salt (Azoic Diazo No.
20; 4-benzoylamino-2,5-diethoxybenzene diazonium chloride, zinc chloride double salt); phenylenediamine dyes, such as Disperse Yellow 9 [N-(2,4-dinitrophenyl)-1,4-phenylenediamine or Solvent Orange 53,] ; diazo dyes, such as Disperse Orange 13 [Solvent Orange 52; 1-phenylazo-4-(4-hydroxyphenylazo)naphthalene];
anthraquinone dyes, such as Disperse Blue 3 [Celliton Fast Blue FFR; 1-methylamino-4-(2-hydroxyethylamino)-9,10- _.
anthraquinone], Disperse Blue 14 [Celliton Fast Blue B; 1,4-bis(methylamino)-9,10-anthraquinone], and Alizarin Blue Black B (Mordant Black 13); trisazo dyes, such as Direct Blue 71 ,WO 96/19776 PCT/US95/15469 f Benzo Light Blue FFL or Sirius Light Blue BRR; 3- [ (4- [ (4- [ (6-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo]-6-sulfo-1-naphthalenyl) azo] -1-naphthalenyl) azo] -1, 5-naphthalenedisulfonic acid tetrasodium salt ; xanthene dyes, such as 2,7-dichlorofluorescein; proflavine dyes, such as 3,6-diaminoacridine hemisulfate (Proflavine); sulfonaphthalein dyes, such as Cresol Red (o-cresolsulfonaphthalein);
phthalocyanine dyes, such as Copper Phthalocyanine {Pigment Blue 15; (SP-4-1) - [29H, 31H-phthalocyanato (2-) -~Tz9,lV'°,N'1,N'z] -copper}; carotenoid dyes, such as traps-f3-carotene (Food Orange 5); carminic acid dyes, such as Carmine, the aluminum or calcium-aluminum lake of carminic acid (7-a-D-glucopyranosyl-9,10-dihydro-3,5,6,8-tetrahydroxy-1-methyl-9,10-dioxo-2-anthracenecarboxylic acid); azure dyes, such as Azure A [3-amino-7- (dimethylamirio) phemotiiiazin-5~-ium chloride or 7-(dimethylamino)-3-imino-3H-phenothiazine hydrochloride]; and acridine dyes, such as Acridine Orange [Basic Orange 14; 3,8-bis(dimethylamino)acridine hydrochloride, zinc chloride double salt] and Acriflavine (Acriflavine neutral; 3,6-diamino-10-methylacridinium chloride mixture with 3,6-acridinediamine).
The term "mutable" with reference to the colorant is used to mean that the absorption maximum of the colorant in the visible region of the electromagnetic spectrum is capable of being mutated or changed by exposure to ultraviolet radiation when in the presence of the ultraviolet radiation transorber.
Alternatively and/or additionally, it is contemplated that radiation at wavelengths in other regions of the electromagnetic spectrum may be used. In general, it is only necessary that such absorption maximum be mutated to an absorption maximum which is different from that of the colorant prior to exposure to the ultraviolet radiation, and that the mutation be irreversible. Thus, the new absorption maximum can be within or outside of the visible region of the , electromagnetic spectrum. In other words, the colorant can mutate to a different color or ~ be rendered colorless, , transparent, or otherwise substantially undetectable by conventional photo-sensing apparatus. The latter, of course, WO 96/19776 PCTlUS95/154G9 is desirable when the colorant is used in a colored composition adapted to, be utilized in the data.processing forms of the present invention.
As used herein, the term "irreversible" means that the ~5- colorant will not revert to its original color when it no longer is exposed to ultraviolet radiation (or radiation at other effective wavelengths in the electromagnetic radiation spectrum). Desirably, the mutated colorant will be stable, i.e., not appreciably adversely affected by radiation normally encountered in the environment, such as natural or artificial light and heat. Thus, desirably, a colorant rendered colorless, transparent, or otherwise substantially undetectable by conventional photo-sensing apparatus will remain colorless or substantially undetectable indefinitely.
The term "ultraviolet radiation transorber" is used herein to mean any material which is adapted to absorb ultraviolet radiation (or radiation at other effective wavelengths in the electromagnetic radiation spectrum) and interact with the colorant to effect the mutation of the colorant. In some embodiments, the ultraviolet radiation transorber may be an organic compound. The .term "compound" is intended to include a single material or a mixture of two or more materials. If two or more materials are employed, it is not necessary that all cf them absorb ultraviolet radiation of the same wavelength. It is contemplated that the transorber may be adapted to absorb radiation at other wavelengths The data processing. form of present invention incorporates a colored composition that includes unique compounds that are capable of absorbing narrow ultraviolet wavelength radiation (or radiation at other effective wavelengths in the electromagnetic radiation spectrum). The compounds are synthesized by combining a wavelength-selective sensitizer and a photoreactor. The photoreactors oftentimes do not efficiently absorb high energy, radiation. When combined with wavelength-selective antennae that correspond to the eximer lamp. emission, the resulting compound is a wavelength specific compound that efficiently absorbs a very narrow spectrum of ~VVO 96/9776 PCT/US95/154b9 radiation. Examples of ultraviolet radiation transorbers are shown in Examples 5 and 9 herein.
While the mechanism of the interaction of the ultraviolet radiation transorber with the colorant is not totally understood, it is believed that it may interact with the colorant in a variety of ways. For example, the ultraviolet radiation transorber, upon absorbing ultraviolet radiation, may be converted to one or more free radicals which interact with the colorant. Such free radical-generating compounds typically are hindered ketones, some examples of which include, but are not limited to: benzildimethyl ketal (available commercially as Irgacure~ 651, Ciba-Geigy Corporation, Hawthorne, New York); 1-hydroxycyclohexyl phenyl ketone (Irgacure° 500); 2-methyl-1-[4-(methylthio)phenyl]-2-morpholino-propan-1-one] (Irgacure°
907); 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)butan-1-one (Irgacure~ 369); and 1-hydroxycyclohexyl phenyl ketone (Irgacure° 184).
Alternatively, the ultraviolet radiation may initiate an electron transfer or reduction-oxidation reaction between the ultraviolet radiation transorber and the colorant. In this case, the ultraviolet radiation transorber may be, but is not ' limited to, Michler's ketone (p-dimethylaminophenyl ketone) or benzyl trimethyl stannate. Or, a cationic mechanism may be involved, in which case the ultraviolet radiation transorber could be, for example, bis[4-(diphenylsulphonio)phenyl)]
sulfide bis-(hexafluorophosphate) (Degacure~ KI85, Ciba-Geigy Corporation, Hawthorns, New York); Cyracure~ UVI-6990 (Ciba-Geigy Corporation), which is a mixture of bis[4-(diphenylsulphonio)phenyl] sulfide bis(hexafluorophosphate) with related monosulphonium hexafluorophosphate salts; and 5-2,4-(cycl.opentadienyl)[1,2,3,4,5,6-(methylethyl)benzene]-iron-(II) hexafluorophosphate (Irgacure~ 261).
The term "ultraviolet radiation" is used herein to mean electromagnetic radiation having wavelengths in the range of from about 4 to about 400 nanometers. An especially desirable ultraviolet radiation wavelength range is between approximately m7___ i.L- -1 _.~. t-L-.
l0U t0 3-/5 rianOmetez'S. l~nus, Lne teii« i.iic:luu~s ~ciC regions WO 96!19776 PCT/US95/15469 J
commonly referred to as ultraviolet and vacuum ultraviolet.
The wavelength ranges typically assigned to these two regions are from about 180 to about 400 nanometers and from about 100 to about 180 nanometers, respectively.
In some embodiments, the molar ratio of ultraviolet radiation transorber to colorant generally will be equal to or greater than about 0.5. As a general rule, the more efficient the ultraviolet radiation transorber is in absorbing the ultraviolet radiation and interacting with, i.e., transferring absorbed energy to, the colorant to effect irreversible mutation of the colorant, the lower such ratio can be. Current theories of molecular photo chemistry suggest that the lower limit to such ratio is 0.5, based on the generation of two free radicals per photon. As a practical matter, however, ratios higher than 1 are likely to be required, perhaps as high as about 10. However, the colored compositions used with the data processing form of the present invention are not bound by any specific molar ratio range. The important feature is that the transorber is present in an amount sufficient to effect mutation of the colorant.
As a practical matter, the colorant, and ultraviolet . radiation transorber are likely to be solids. However, any or all of such materials can be a liquid. In an embodiment where the colored composition is a solid, the effectiveness of the ultraviolet radiation transorber is improved when the colorant and ultraviolet radiation transorber are in intimate contact.
To this end, the thorough blending of the two components, along with other components which may be present, is desirable. Such blending generally is accomplished by any of the means known to those having ordinary skill in the art. When the colored composition includes a polymer, blending is facilitated if the colorant and the ultraviolet radiation transorber are at least partly soluble in softened or molten polymer. In such case, the composition is readily prepared in, for example, a two-roll mill. Alternatively, the colored composition can be a liquid because one or more of its components is a liquid.

For some applications, the colored composition typically will be utilized in particulate form. In other applications, the.particles of the composition should be very small. For example, the particles of a colored composition adapted for use as a toner in an electrophotographic process that can be used to prepare the data processing forms of the present invention may typically consist of 7-15 micrometer average diameter particles, although smaller or larger particles can be employed. In such an application, the particles should be as uniform in size as possible. Methods of forming such particles are well known to those having ordinary skill in the art.
Photochemical processes involve the absorption of light quanta, or photons, by a molecule, e.g., the ultraviolet radiation. transorber, to produce a highly reactive electronically excited state. However, the photon energy, which is proportional to the wavelength of the radiation, cannot be absorbed by the molecule unless it matches the energy difference between the unexcited, or original, state and an excited state. Consequently, while the wavelength range of the ultraviolet radiation to which the colored composition is exposed is not directly of concern, at least a portion of the radiation must have wavelengths which will provide the necessary energy to raise the ultraviolet radiation transorber to an energy level which is capable of interacting with the coloran .
It follows, then, that the absorption maximum of the ultraviolet radiation transorber ideally will be matched with the wavelength range of the ultraviolet radiation in order to increase the efficiency of the mutation of the colorant. Such efficiency also will be increased if the wavelength range of the ultraviolet radiation is relatively narrow, with the maximum of the ultraviolet radiation transorber coming within such range. For these reasons, especially suitable ultraviolet radiation has a wavelength of from about 100 to about 375 nanometers. Ultraviolet radiation within this range desirably may be incoherent, pulsed ultraviolet radiation from a dielectric barrier discharge excimer lamp.

R'O 96/19776 PGT/US95/15469 The term "incoherent, pulsed ultraviolet radiation" has reference to the radiation produced-by a dielectric barrier discharge excimer lamp (referred to hereinafter as "excimer lamp"). Such a lamp is described, for example, by U.
'S Kogelschatz, "Silent discharges for the generation of ultraviolet and vacuum ultraviolet excimer radiation," Pure &
Appl. Chem., 62, No. 9, pp. 1667-1674 (1990); and E. Eliasson and U. Kogelschatz, "UV Excimer Radiation from Dielectric-Barrier Discharges," Appl. Phys. B, 46, pp. 299-303 (1988).
Excimer lamps were developed originally by ABB Infocom Ltd., Lenzburg, Switzerland. The excimer lamp technology since has been acquired by Haraus Noblelight AG, Hanau, Germany.
The excimer lamp emits radiation having a very narrow bandwidth, i.e., radiation in which the half width is of the order of 5-15 nanometers. This emitted radiation is incoherent and pulsed, the frequency of the pulses being dependent upon the frequency of the alternating current power supply' which typically is in the range of from about 20 to about 300 kHz.
An excimer lamp typically is identified or referred to by the wavelength at which the maximum intensity of the radiation occurs, which convention is followed throughout this . specification. Thus, in comparison with most other commercially useful sources of ultraviolet radiation which typically emit over the entire ultraviolet spectrum and even into the visible region, excimer lamp radiation is substantially monochromatic.
Excimers are unstable molecular complexes which occur only under extreme conditions, such as those temporarily existing in special types of gas discharge. Typical examples are the molecular bonds between two rare gaseous atoms or between a rare gas atom and a halogen atom. Excimer complexes dissociate within less than a microsecond and, while they are dissociating, release their binding energy in the form of ultraviolet radiation. Known excimers, in general, emit-in the range of from about 125 to about 360 nanometers, depending upon the excimer gas mixture.

Although the colorant and the ultraviolet radiation transorber have been described as separate compounds, they can be part of the same molecule. For example, they can be covalently coupled to each other, either directly, or indirectly through a relatively small molecule, or spacer.
Alternatively, the colorant and ultraviolet radiation transorber can be covalently coupled to a large molecule, such as an oligomer or a polymer, particularly when a solid colored composition is desired. Further, the colorant and ultraviolet radiation transorber may be associated with a large molecule by van der Waals forces, and hydrogen bonding, among other means.
Other variations will be readily apparent to those having ordinary skill in the art.
For example, the colored composition may also contain a molecular includant. The term "molecular includant," as used herein, is intended to mean any substance having a chemical structure which defines at least one cavity. That is, the molecular includant is a cavity-containing structure. As used herein, the term "cavity" is meant to include any opening or space of a size sufficient to accept at least a portion of one or both of the colorant and the ultraviolet radiation -. transorber. Thus, the cavity can be a tunnel through the molecular includant or a cave-like space in the molecular includant. The cavity can be isolated or independent, or connected to one or more other cavities.
The molecular includant can be inorganic or organic in nature. In certain embodiments, the chemical structure'of the molecular includant is adapted to form a molecular inclusion complex. Examples of molecular includants are, by way of illustration only, clathrates or intercalates, zeolites, and cyclodextrins. Examples of cyclodextrins include, but are not limited to, alpha-~cyclodextrin, beta-cyclodextrin, gamma-cyclodextrin, hydroxypropyl beta-cyclodextrin, hydroxyethyl beta-cyclodextrin, sulfated beta-cyclodextrin, and sulfated gamma-cyclodextrin. (American Maize-Products Company, of Hammond Indiana) In some embodiments, the molecular includant ' is a cyclodextrin. More particularly, in some embodiments, the WO 96/19776 PC"T/US95/15469 molecular includant is an alpha-cyclodextrin. In other embodiments, the molecular includant is a beta-cyclodextrin.
Although not wanting to be bound by the following theory, it is believed that the closer the transorber molecule is to the mutable colorant on the molecular includant, the more efficient the interaction with the colorant to effect mutation of the colorant. Thus, the molecular includant with functional groups that can react with and bind the transorber molecule and that are close to the binding site of the mutable colorant are the more desirable molecular includants.
As used herein, the term "derivatized molecular includ-ant" is used herein to mean a molecular includant having more than two leaving groups covalently coupled to each molecule of the molecular includant. The term "leaving group" is used herein to mean any leaving group capable of participating in a bimolecular nucleophilic substitution reaction.
The colorant and the ultraviolet radiation transorber are associated with the molecular includant. The term "associated"
in its broadest sense means that the colorant and the ultraviolet radiation transorber are at least in close proximity to the molecular includant. For example, the colorant and/or the ultraviolet radiation transorber can be maintained in close proximity to the molecular includant by hydrogen bonding, van der Waals forces, or the like.
Alternatively, either or both of the colorant and the ultraviolet radiation transorber can be covalently bonded to 'the molecular i.ncludant. In certain embodiments, the colorant will be associated with the molecular includant by means of hydrogen bonding and/or van der Waals forces or the like, while the ultraviolet radiation, transorber is covalently bonded to the molecular includant. In other embodiments, the colorant is at least partially included within the cavity of the molecular includant, and the ultraviolet radiation transorber is located outside. of the cavity of the molecular includant. In orie embodiment wherein the colorant and the ultraviolet radiation t,ransorber are associated with the molecular includant, the colorant is crystal violet, the ultraviolet radiation SUBSTITUTE SHEET
transorber a dehydrated phthaloylglycine-2959, N-CH C- H / ~ ~I /CH2 2 ~~C 2~2~

O
and the molecular includant is beta-cyclodextrin. In yet another embodiment wherein the colorant and the ultraviolet radiation transorber are associated with the molecular includant, the colorant is crystal violet, the ultraviolet radiation transorber is 4(4-hydroxyphenyl) butan-2-one-2959 (chloro substituted), CH3-C-CH~CHZ ~ ~ 0-(CH,)~-0 ~ ~ 0-C-OH

and the molecular includant is beta-cyclodextrin.
In-another embodiment wherein the colorant and the ultraviolet radiation transorber are associated with the molecular includant, the colorant is malachite green, tine ultraviolet radiatior_ transorber is Irgacure 184, and molecular includant is beta-cyclodextrin as shown in FIG 1:
. In still another embodiment wherein the colorant and ultraviolet radiation transorber are associated with molecular includant, the colorant is victoria pure blue BO, ultraviolet radiation._transorber is Irgacure- 184, and molecular includant is beta-cyclodextrin as shown in FIG.2.
Examples 5 through 9 disclose a method of preparing and associating these colorants and ultraviolet radiation transorbers to beta-cyclodextrins. It is to be understood that the methods disclosed in Examples 5 through 9 are merely one way of preparing and associating these components, and that many other methods known in the chemical arts may be used. Other methods of preparing and associated such components, or any of the other components which may be used in the colored composition would be known to those of ordinary skill in the art once the specific components have SUBSTITUTE SHEET
been selected.
As a practical matter, the ~coloran'~, ultraviolet radiation transorber, and molecular includant are likely to be solids. However, any or all of such materials can be a liquid. The colored composition can be a liquid either because one or more of its components is a liquid, or, when the molecular includant is organic in nature, a solvent is employed. Suitable solvents include, but are not limited to, amides, such as N,N-dimethylformamide; sulfoxides, such as IO dimethylsulfoxide; ketones, such as acetone, methyl ethyl ketone, and methyl butyl ketone; aliphatic and aromatic hydrocarbons, such as hexane, 40 - 20 (a) -WO 96/19776 PG'T/US95/15469 octane, benzene, toluene, and the xylenes; esters, such as ethyl acetate; water; and the like. When the molecular includant is a cyclodextrin, particularly suitable solvents are the amides and sulfoxides.
The present invention also relates to a method of mutating the colorant in the colored composition employed in the data processing forms of the present invention. Briefly described, the method includes the step of irradiating a composition containing a mutable colorant and an ultraviolet radiation transorber with ultraviolet radiation at a dosage level sufficient to mutate the colorant. As stated above, the composition may include a molecular includant.
The amount or dosage level of ultraviolet radiation that the colorant is exposed to will generally be that amount which is necessary to mutate the colorant. The amount of ultraviolet radiation necessary to mutate the colorant can be determined by one of ordinary skill in the art using routine experimentation.
Power density is the measure of the amount of radiated electromagnetic power traversing a unit area and is usually expressed in watts per centimeter squared (W/cmz). The power density level range is between approximately 5 mW/cm2 and 15 mW/cm2, more particularly 8 to 10 mW/cm2. The dosage level, in turn, typically is a function of the time of exposure and the intensity or flux of the radiation source which irradiates the colored composition. The latter is effected by the distance of the composition from.the source and, depending upon the wavelength range of the ultraviolet radiation, can be effected by the atmosphere between the radiation source and the composition. Accordingly, in some instances it may be appropriate to expose the composition to the radiation in a controlled atmosphere or in a vacuum, although in general neither approach is desired.
For example, in one embodiment, the colorant is mutated by -exposure to 222 nanometer excimer lamps. More particularly, the colorant crystal violet is mutated by exposure to 222 nanometer lamps. Even more particularly, the colorant crystal violet is mutated-by exposure to 222 nanometer excimer lamps located approximately 5 to 6 centimeters from the colorant, wherein the lamps are arranged in four parallel columns approximately 30 centimeters long as shown in FIGS. 3 and 4.
It is to be understood that the arrangement of the lamps is not critical to this aspect of the invention. _Accordingly, one or more lamps may be arranged in any configuration and at any distance which results in the colorant mutating upon exposure to the lamp's ultraviolet radiation. One of ordinary skill in the art would be able to determine by routine experimentation which configurations and which distances are appropriate.
Also, it is to be understood that different excimer lamps are to be used with different ultraviolet radiation transorbers.
The excimer lamp used to mutate a colorant associated with an ultraviolet radiation transorber should produce ultraviolet radiation of a wavelength that is absorbed by the ultraviolet radiation transorber.
The colored composition can be utilized on or in any sheet of carrier material (i.e., substrate? used to make the data processing form. It is important only that the colored composition form a plurality of indicia or define a plurality of indicia-receiving locations which generally appear to be "at about" or on at least a first surface of the sheet.
Accordingly, the expression "a plurality of indicia-receiving locations on at least a surface of the sheet" should be understood to encompass a plurality of indicia-receiving locations which generally appear to be "at about" or on at least a first surface of the sheet. Likewise, the expression "a plurality of indicia at indicia-receiving locations on at least a surface of the sheet" should be understood to encompass a plurality of indicia at indicia-receiving locations, both of which generally appear to be" at about" or on at least a first surface of the sheet.
If the composition is present in the sheet of carrier material, however, the carrier material should be substantially transparent to the ultraviolet radiation which is employed to mutate the colorant. That is, the ultraviolet radiation (or radiation at other effective wavelengths in the electromagnetic radiation spectrum) will not significantly interact with or be absorbed by the carrier material. As a practical matter, the composition typically will be placed on or incorporated into a sheet of carrier material, with the most common carrier material being paper. Other carrier materials, including, but not limited to, woven and nonwoven webs or fabrics, films, cards, cardboard, or the like, can be used. It is contemplated that the composition may be placed directly on other items to be processed by photo-sensing apparatus, including but not limited to, packaging, inventory, products, equipment, machinery, parts, vehicles, collars, tags, containers, or the like.
The data processing form of the present invention contains indicia-receiving locations defined by the mutable colored composition described herein. Alternatively and/or additionally, the data processing form of the present invention may contain indicia, text and/or graphics formed from the mutable colored composition described herein. Although the data processing form of the present invention may employ any sheet of carrier material capable of having the colored composition fixed thereto or incorporated therein, a desirable carrier material is paper. Particular examples include, but are not limited to, photocopy paper and facsimile paper.
By way of example, the colored composition can be incorporated into a toner adapted to be utilized in an electrophotographic process employed in the production of the data processing forms. The toner includes the colorant, ultraviolet radiation transorber, and a vehicle. The vehicle can be a polymer, and the toner may further contain a charge control agent. Briefly described, the electrophotographic process ccmprises the steps of creating an image on a photoreceptor surface, applying toner to the photoreceptor surface to form a toner image which replicates the image, transferring the toner image to a substrate, and fixing the t-oner image to the substrate. After the toner has been fixed on the substrate, the colorant in the composition is mutated by irradiating -the substrate with ultraviolet radiation at a dosage level sufficient to irreversibly mutate the colorant.
In some embodiments, the ultraviolet. radiation used to mutate the colorant will have wavelengths of from about 100 to about 375 nanometers. In other embodiments, the ultraviolet radiation is incoherent, pulsed ultraviolet radiation produced by a dielectric barrier discharge excimer lamp. In another embodiment, the toner may further comprise a molecular includant.
When the colored composition is adapted to be utilized as a toner in an electrophotographic process (in ~che manufacture of the data processing forms of the present invention), the composition also will contain a vehicle, the nature of which is well known to those having ordinary skill in the art. For many applications, the carrier will be a polymer, typically a thermosetting or tharmopla~t~;: polymer, with the latter being the more common.
Further examples of thermoplastic polymers include, but are not limited to: end-capped polyacetals, such as poly(oxymethylene) or polyformaldehyde, poly(trichloroacetaldehyde), poly(n-valeraldehyde), poly(acetaldehyde), poly(propionaldehyde), and the like;
acrylic polymers, such as polyacrylamide, poly(acrylic acid), poly(methacrylic acid),. poly(ethyl acrylate), poly(methyl methacrylate), and the like; fluorocarbon polymers, such as poly(tetrafluoroethylene), perfluorinated ethylenepropylene copolymers, ethylenet~etrafluoroethylene copolymers, poly-(chlorotrifluoroethylene), ethylene-chlorotrifluoroethylene copolymers, poly(vinylidene fluoride), polyvinyl fluoride), and the like; epoxy resins, such as the condensation products 3 0 of epichlorohydrin and bisphenol A; polyamides , such as poly ( 6 -aminocaproic acid) or poly(E-caprolactam), poly(hexamethylene adipamide), poly(hexamethylene sebacamide), poly(11-aminoundecanoic acid), and the like; polyaramides, such as poly(imino-1,3-phenyleneiminoisophthaloyl).or poly(m-phenylene isophthalamide), and the like; parylenes, such as poly-p-xylylene, poly(chloro-p-xylene) , and the like; polyaryl ethers, such as poly(oxy-2,6-dimethyl-1,4-phenylene) or poly(g-phenylene oxide), and the like; polyaryl sulfones, such as poly(oxy-1,4-phenylenesulfonyl-1,4-phenyleneoxy-1,4-phenylene-isopropylidene-1,4-phenylene),poly(sulfonyl-1,4-phenyleneoxy-1,4-phenylenesulfonyl-4,4-biphenylene), and the like;
polycarbonates, such as poly(bisphenol A) or poly(carbonyldioxy-1,4-phenyle:~eisopropylidene-1,4-phenylene), and the like; polyesters, such as poly (ethylene terephthalate) , poly(tetramethylene terephthalate), poly(cyclohexylene-1,4-dimethylene terephthalate) or poly(oxymethylene-1,4-cyclohexylenemethyleneoxyterephthaloyl), and the like; polyaryl sulfides, such as poly(g-phenylene sulfide) or poly(thio-1,4-phenylene), and the like; polyimides, such as poly-(pyromellitimido-1,4-phenylene), and the like; polyolefins, such as polyethylene, polypropylene, poly(1-butene), poly(2-butene), poly(1-pentene), poly(2-pentene), poly(3-methyl-1-pentene), poly(4-methyl-1-pentene), 1,2-poly-1,3-butadiene, 1,4-poly-1,3-butadiene, polyisoprene, polychloroprene, polyacrylonitrile, polyvinyl acetate), poly(vinylidene chloride), polystyrene, and the like; and copolymers of the foregoing, such as acrylonitrile-butadienestyrene (ABS) copolymers, styrene-n-butylmethacrylate copolymers, ethylene-vinyl acetate copolymers, and the like.
Some of the more commonly used thermoplastic polymers include styrene-n-butyl methacrylate copolymers, polystyrene, styrene-n-butyl acrylate copolymers, styrene-butadiene copolymers, polycarbonates, poly(methyl methacrylate), poly(vinylidene fluoride), polyamides (nylon-12), polyethylene, polypropylene, ethylene-vinyl acetate copolymers, and epoxy resins.
Examples of thermosetting polymers include, but are not limited .to, alkyd resins, such as phthalic anhydride-glycerol resins, malefic acid-glycerol resins, adipic acid-glycerol resins, and phthalic anhydride-pentaerythritol resins; allylic resins, in which such monomers as diallyl phthalate, diallyl isophthalate diallyl maleate, and di~.llyl chlorendate serve as nonvolatile cross-linking agents in polyester compounds; amino resins, such as aniline-formaldehyde resins, ethylene urea-formaldehyde resins, dicyandiamide-formaldehyde resins, melamine-formaldehyde resins, sulfonamide-formaldehyde resins, and urea-formaldehyde resins; epoxy resins, such as cross-linked epichlorohydrin-bisphenol A resins; phenolic resins, such as 'phenol-formaldehyde resins, including Novolacs and resols; and thermosetting polyesters, silicones, and urethanes.
In addition to the colorant, and ultraviolet rac'~iation transorber, and optional vehicle, the colored composition may contain additional components, depending upon the application for which it is intended. For example, a composition which is to be utilized as a toner in an electrophotographic process that may be used to make the data processing forms of the present invention optionally can contain, for example, charge control agents, stabilizers against thermal oxidation, viscoelastic properties modifiers, cross-linking agents, plasticizers, and the like. Further, a composition which is to ~be utilized as a toner in an electrophotographic process optionally can contain charge control additives such as a quaternary ammonium salt; flow control additives such ~as hydrophobic silica, zinc stearate, calcium stearate, lithium stearate, polyvinylstearate, and polyethylene powders; and . fillers such as calcium carbonate, clay and talc, among other additives used by those having ordinary skill in the art. For some applications, the charge control agent will be the major component of the toner. Charge control agents, of course, are well known to those having ordinary skill in the art and typically are polymer-coated metal particles. The identities and amounts of such additional components in the colored composition are well known to one of ordinary skill in the art .
Further, the toner can also incorporate a molecular includant as described above.
It should be understood from the discussion above that the colored composition may be incorporated into printing fluids or other materials used in printing processes, image-creating processes, image-duplication processes or the like to generate indicia, marks, text, graphics or the like and/or define indicia-receiving locations "at about" or on at least one WU 96/19776 PCT/US95l15469 surface of a sheet of carrier material to prepare the data processing. forms of the present invention.
Referring now to FIGS. 6 and 7, there is shown (not necessarily to scale) an illustration of two exemplary methods for optical scanning of the exemplary data processing forms addressed by the present invention. In each method, portions of a data processing form are sequentially scanned. This is usually accomplished by transporting the data processing form through a scanning station forming part of scanning equipment.
Such equipment (not shown here) usually includes a tray or other means for holding forms to be scanned, transport means to pick up a single document at a time and move it through the scanning station and an output tray or other means for holding forms that have been scanned. As the form is transported through the scanning station, one or more photo-sensing apparatus is used to check for the presence or absence of indicia (e. g., marks) in specified areas (i.e., indicia-receiving locations). This photo-sensing apparatus generates electrical signals that are processed to discriminate between the presence or absence of a indicia. Data produced by the indicia discriminating circuitry may be further processed by comparison to a control or answer key, developing a total or totals for various indica and storing data associated with a particular data processing form and/or a group of data processing forms for further interpretation. Photo-sensing equipment of this general type is disclosed by sources such as , for example, LT. S. Patent Nos. 3,737,628 and 3,800,439.
FIG. 6 is. an illustration of an exemplary photo-sensing apparatus based on the transmitted-read method. A data processing form 40 has a first or top surface 42 and a second or bottom surface 44. The top surface 42 may have a sequence of timing marks 50 forming a control mark column 52 (See FIG.
8). As best seen in FIG. 8, associated with the control marks 50 are a plurality of indicia-receiving locations 80 (e. g., response areas when the form 40 is used as a test answer sheet, a survey form, or the like). The form 40 may have control a marks 50 and indicia-receiving locar; nn~ sin nn nnl v nno c"r~~r~o __ -_J -__~-----~ r", w vaa.~1 vrw V~.t114.m.

or on both surfaces. Thus, FIG. 6 shows additional control marks 60 on.the bottom surface 44. These are shown as aligned with and symmetrically located relative to the control marks 50 on the top surface, as may be required for transmitted-read type forms.
An exemplary photo-sensing apparatus that may be used in a transmitted-read method includes, as shown in FIG. 6, a light source 22 adjacent the top surface 42 and a photo-sensor 3 0 adj acent the bottom surface 44 . The photo-sensor 3 0 receives light transmitted through the scannable form 40 which is made of a suitable material that allows at least the minimum level of light transmission to enable the transmitted-read equipment to function properly when no indicia (e.g. , mark) is present to occlude the light. When an indicia is present, little or no i5 light may reach the photo-sensor 30. The electrical output of the photo-sensor 30 is received by data processing means 32 and processed to discriminate between indicia (e.g., mark) and "non-indicia" (e. g., non-mark). (An exemplary scanner device using this scanning method is the Sentry 3000 scanner sold by National Computer Systems, Inc., of Eden Prairie, Minnesota.
Other scanner devices using the transmitted-read method may be available from other sources).
The indicia-receiving locations 80 are positioned on the form 40 to have a particular orientation to the control marks 50. When the photo-sensor 30 detects a control mark 50, it triggers the photo-sensing apFaratus to commence inspection for indicia which may or may not be present in indicia-receiving locations 80 associated with the control mark 50.
Additionally, data processing forms that are processed by conventional transmitted-read methods should avoid having any light-absorbing or-light-blocking material (e. g., marks, text, graphics, or the like) on the bottom surface 44 of the form that disrupt or interfere with light transmission through the form from indicia-receiving locations 80 on the top surface 42 _ (and vice versa, if the bottom surface 44 also has indicia-receiving locations 80 that are to be processed).
_ 2g _ FIG. 7 shows a photo-sensing apparat~~s based on the reflective=read method. Equipment/systems of this type are disclosed by, for example, U.S. Patent Nos. 3,676,690 and . 4,300,123. For purposes of discussion, the data processing form 40 will be the same in both FIG. 6 and FIG. 7, An e~cemplary photo-sensing apparatus that may be used in the reflective-read method includes, as shown in FIG. 7, a pair of light sources 120, 122 placed adjacent the top surface 42 of the data-processing form 40 so as to direct reflected light to a photo-sensor 130 when indicia are absent from .the indicia-receiving location 80. When an indicia is present, little or no light may be reflected to the photo-sensor 130. The electrical output of the photo-sensor 130 is received by data processing means 132 and processed in much the same manner as with transmitted-read photo-sensor 30 to discriminate between indicia (e.g., mark) and "non-indicia" (e.g., non-mark). To read both sides simultaneously, a further light source-photo-sensor combination can be placed adjacent the bottom surface 44 of the data processing form.
In view of the above, conventional photo-sensing apparatus, which may incorporate computer software and/or hardware, may be configured to inspect or "look" precisely at areas designated to contain indicia and not at other areas in order to discriminate between indicia (e. g., data marks), stray indicia (e. g., stray data marks), non-indicia (e. g., material not intended to be detected by photo-sensing apparatus), smudges, flaws in the document, or the like. Moreover, data processing forms can have applications in which only a few indicia-receiving locations are expected to contain i:ndicia.
In those situations, photo-sensing apparatus are designed or programmed to ignore indicia sensed in other areas . It is very desirable for the data processing form to be as free of clutter or markings which may interfere with the processing in order to simplify the design of the photo-sensing apparatus and to enhance the accuracy of processing the forms through the photo-sensing apparatus.

,WO 96/19776 PGT/US95/15469 For example, FIGS. 8 and 9 are illustrations of a portion of an exemplary data processing form: This particular type of form contains indicia-receiving locations that are darkened and indicia-receiving locations that are filled in with alpha s numeric characters.
FIG. 8 illustrates a portion of a top surface ~42 of an exemplary data processing form 40. The data processing form 40 has indicia-receiving locations 80 and other text 82 and graphics 84 defined by or formed from a mutable colored composition. The mutable colored composition is the colored composition described above and in the Examples. Some of the indicia-receiving locations 80 contain indicia 86. The top surface 42 of the data processing form 40 is depicted in FIG. 8 prior to irradiating the colored composition to irreversibly mutate the colorant.
The top surface 42 of the data processing form also contains control marks SO and other markings 52 that are printed with conventional printing compositions (e. g., compositions containing contain colorants or pigments that do not mutate, that is, they remain detectable by the photo sensing apparatus after being exposed to conditions that would - cause the colorant of the mutable colored composition to irreversibly mutate.
FIG. 9 illustrates the exemplary data processing form shown in FIG. 8 after irradiating the colored composition to irreversibly mutate the colorant. As depicted in FIG. 9, colorant used to define the indicia-receiving locations 80 and to form other text 82 and graphics 84 has been irreversibly mutated and rendered substantially undetectable (e. g., colorless or transparent), leaving only the control marks 50 and the indicia 86.
Accordingly, the data processing forms of the present invention provide an advantage in that any text, graphics, position markers (e. g., marks defining indicia-receiving locations), or other markings that should not be detected by the photo-sensing apparatus can be eliminated or otherwise render undetectable prior to processing the forms through the photo-sensing apparatus.
This objective may be accomplished with the data processing forms of the present invention. In one embodiment, the form is composed of: 1) a sheet of carrier material; and 2) a plurality of indicia-receiving locations on at least a first surface of the sheet. The indicia-receiving locations are defined by a colored composition including a mutable colorant and an ultraviolet radiation transorber. When the colored composition is irradiated with ultraviolet radiation at a dosage level sufficient to irreversibly mutate the colorant, the indicia-receiving locations are adapted to become substantially undetectable by photo-sensing apparatus.
Desirably, the colored composition is irradiated with radiation in the ultraviolet region of the electromagnetic spectrum at a wavelength range between approximately 100 to 375 nanometers.
An embodiment of the method of practicing the method of the present invention (i.e., improving the readability of a data processing form used in photo-sensing apparatus that detect the presence of indicia in indica-receiving locations on the form) is based on utilizing data processing forms that have indicia-receiving locations defined by the colored compositions described above and in the Examples.
The steps of the method of the present invention are straightforward and can be described as follows:
providing a data.processing form that includes a sheet of carrier material and indicia located at a plurality of indicia-receiving locations on at least a first surface of the sheet, the indicia-receiving locations being defined by a mutable colored composition comprising a mutable .colorant and an ultraviolet radiation transorber, irradiating the colored composition with ultraviolet radiation at a dosage level sufficient to irreversibly mutate the colorant so that the indicia-receiving locations are substantially undetectable by photo-sensing apparatus, leaving the indicia to be detected.

Desirably, the colored composition is irradiated with radiation .in the ultraviolet region of the electromagnetic spectrum at a wavelength of from about 100 to about 375 nanometers. As another example, the ultraviolet radiation may be incoherent, pulsed ultraviolet radiation from a dielectric barrier discharge excimer lamp.
The data processing form may be irradiated individually as part of a continuous irradiation step or the forms may be irradiated in batches (after entry of the appropriate indicia at the indicia-receiving locations) and then stored for any period of time prior to. being introduced into the photo-sensing apparatus. Alternatively, the data processing forms may be irradiated as part of a continuous process that includes a step of introducing the forms into a photo-sensing apparatus.
Demonstrations of mut~.bie colored compositions coated onto a carrier material (which may be in the form of text, graphics and indicia-receiving locations) and their subsequent irreversible mutation by exposure to ultraviolet radiation are set forth in Examples 1, 2, 3 and 4 below. Particular description of exemplary electromagnetic radiation generating equipment that produces an environment capable of irreversibly mutating the colored composition described herein is set forth in Examples 10, 11 and 12 as well as the associated Figures.
The method of the present invention is adaptable to work with transmitted-read data processing forms and/or reflective read data processing- forms. It is contemplated that intermediate steps may be incorporated into the method of the present invention. It is further contemplated that other formats of data processing forms may be used if it is,desired that text, graphics, position markers (e. g., marks defining indicia-receiving locations), or other markings that should not be detected by the photo-sensing apparatus are to be eliminated or otherwise render undetectable prior to processing the forms -~ through the photo-sensing apparatus.
Many data processing forms also have the limitations related to the indicia intended to be detected by photo-sensing apparatus. If the indicia is pre-printed prior to scanning, it is often very difficult or even impossible to modify or erase the indicia prior~to processing. In many situations, it may be desirable to quickly and efficiently erase or modify indicia that are to be detected by photo-sensing apparatus. For example, data processing forms that contain indicia (e. g., dots, shapes, alpha-numeric characters, lines, bars or the like) in so many formats (e. g., coupons, packaging labels, parts labels or tags, inventory labels or tags, assembly-line work-in-progress labels or tags, baggage handling labels or tags, medical labels or tags, checks, identification cards, admission cards, admission tickets, credit cards, monetary instruments, transportation tickets, bar code stickers,. bills, or the like) are used in such large numbers that the cost of reprinting or replacing the indicia on each item simply to change or alter the indicia could become significant. For example, FIGS. 10 and 11 are illustrations of a portion of an exemplary data processing form. This particular type of form contains indicia in the format of vertical bars intended to be detected or read by a photo-sensing apparatus utilizing the reflective-read method.
FIG. 10 illustrates an exemplary data processing form 200 ,, having a only portion of the indicia 220 formed from the mutable colored composition described above and in the Examples prior to irradiating the colored composition to irreversibly mutate the colorant. The indicia 220 on data-processing form 200 shown in FIG. 10 is in the ubiquitous "bar code" format.
Indicia in such a format typically is processed by laser "reflective-read" photo-sensing apparatus.
FIG. 11 illustrates the same exemplary data processing form 200 after irradiating the colored composition to irreversibly mutate the colorant. As is shown in the illustration, the colorant used to form several of the indicia has been irreversibly mutated and rendered substantially undetectable (e.g., colorless or transparent), effecting the desired modification of the indicia.
Accordingly, the data processing forms of the present invention provide an advantage in that it is possible to modify WO 96/19776 , PCT/US95/15469 or erase indicia formed from the mutable colored composition in a data-processing form without reprinting or replacing the indicia on each item.
. This objective can be accomplished by the data processing forms of the present invention. An embodiment of the present invention encompasses a data processing form that includes a plurality of mutable indicia. At least a portion of the indicia are formed from a mutable colored composition as described above and in the Examples. The colored composition includes a mutable colorant and an ultraviolet radiation transorber. When the colored composition is irradiated with ultraviolet radiation at a dosage level sufficient to irreversibly mutate the colorant, the indicia that are formed from the colored composition are adapted to become substantially undetectable by photo-sensing apparatus.
Desirably, the colored composition is irradiated with radiation in the ultraviolet region of the ultraviolet spectrum. For example, the colored composition may be irradiated with ultraviolet radiation at a wavelength of from about 100 to about 375 nanometers. As another example, the ultraviolet radiation may be incoherent, pulsed ultraviolet radiation from a dielectric barrier discharge excimer lamp.
The method of practicing an embodiment of the method of the present invention (i.e., modifying indicia on a data processing form used in photo-sensing apparatus that detect the presence of-indicia at~indica-receiving locations nn the form;
is based on utilizing data processing forms that have at least some indicia formed from the colored compositions described above and in the Examples.
The steps of the method of the present invention are straightforward and can be described as follows:
providing a data processing form that includes a sheet of carrier material and a plurality of indicia at indicia ~receiving locations on at least a first surface of the sheet, at least a portion of the indicia being mutable indicia formed from a colored composition including a mutable colorant and an ultraviolet radiation transorber;

,WO 96!19776 PCT/LTS95/15469 irradiating the colored composition with ultraviolet radiation. at a dosage level sufficient to irreversibly mutate the colorant-so that at least a portion of the mutable indicia are substantially undetectable by photo-sensing apparatus.
The data processing form may be irradiated individually as part of a continuous irradiation step or the forms may be irradiated in batches (after entry of the appropriate indicia in the indicia-receiving locations) and then stored for any period of time prior to being introduced into the photo-sensing apparatus. Alternatively, the data processing forms may be irradiated as part of a continuous process that includes a step of introducing the forms into a photo-sensing apparatus .
Demonstrations of mutable colored compositions coated onto a carrier material (which may be in the form of mutable indicia) and their subsequent irreversible mutation by exposure to ultraviolet radiation are set forth in Examples 1, 2, 3 and 4 below. Particular description of exemplary electromagnetic radiation generating equipment that produces an environment capable of irreversibly mutating the colored composition described herein is set forth in Examples 10, 11 and 12 as well as the associated Figures.
The method of the present invention is adaptable to work with transmitted-read data processing forms and/or reflective-read data processing forms. It is contemplated that intermediate steps may be incorporated into the method of the present invention. It is further contemplated that other formats of data processing forms may be used if it is desired to modify or erase indicia from the data processing forms prior to processing the forms through the photo-sensing apparatus.
Aspects of the present invention are further described by the examples that follow. Such examples, however, are not to be construed as limiting in any way either the spirit or scope of the present invention. In the examples, all parts are parts by weight unless stated otherwise.

' SUBSTITUTE SHEET

This Example describes the preparation of films consisting of colorant, ultraviolet radiation transorber, and thermoplastic polymer. The colorant and ultraviolet radiation transorber were ground separately in a mortar. The desired amounts of the ground components were weighed and placed in an aluminum pan, along with a weighed amount of a thermoplastic polymer. The pan was placed on a hot plate set at 150°C and the mixture in the pan was stirred until molten.
A few drops of the molten mixture were poured onto a steel plate and spread into a thin film by means of a glass microscope slide. Each steel plate was 7.6 cm x 12.7 cm (3 x 5 inches) and was obtained from Q-Panel Company, Cleveland, Ohio. The film of the steel plate was estimated to have a thickness of the order of 10-20 micrometers.
In every instance, the colorant was Malachite Green oxalate (Aldrich Chemical Company, Inc., Milwaukee, Wisconsin), referred to hereinafter as Colorant A for convenience. The ultraviolet radiation transorber ("UVRT") consisted of one or more of Irgacure~ 500 ("UVRT A"), Irgacure~ 651 ( "WRT B" ) , and Irgacure~ 907 ( "UVRT C" ) , each of which was described earlier and is available from Ciba-Geigy Corporation, Hawthorne, New York. The polymer was one of the following: an epichlorohydrin-bisphenol A epoxy resin ("Polymer A"), Epon~ 1004F (Shell Oil Company, Houston, Texas); a polyethylene glycol) having a weight-average molecular weight of about 8,000 ("Polymer B" ), Carbowax 8000 (Aldrich Chemical Company); and a polyethylene glycol) having a weight-average molecular weight of about 4,600 ("Polymer C"), Carbowax 4600 (Aldrich Chemical Company). A
control film was prepared which consisted only of colorant and polymer.The compositions of the films are summarized in Table 1.

nn~cmnrn cL~rrT

T

Compos itions of FilmsContaining Colorant Ultraviolet iation Transorber and Rad ( n UVRT" ) Colorant WRT Poly mer Film Type Parts Parts Type Parts T ~e B '~ 1 A 12 A 90 While still on the steel plate, each film was exposed to ultraviolet radiation. In each case, the steel plate having the film sample on its surface was placed on a moving conveyor belt having a variable speed control. Three different ultraviolet radiation sources, or lamps, were used. Lamp A was a 222-nanometer excimer lamp and Lamp B was a 308-nanometer excimer lamp, as already described. Lamp C was a fusion lamp system having a "D" ' bulb (Fusion Systems Corporation, Rockville, Maryland). The excimer lamps were organized in banks of four cylindrical lamps having a length of about 30 cm, with the lamps being oriented normal to the direction of motion of the belt . The lamps were cooled by circulating water through a centrally located or inner tube of the lamp and, as a consequence, they operated at a relatively low temperature, i.e., about 50°C. The power density at the lamp's outer surface typically is in the range of from about 4 to about 20 joules per square meter (J/m2).
However, such range in reality merely reflects the capabilities of current excimer lamp power supplies; in the future, higher power densities may be practical. With Lamps A

' ~ SUBSTITUTE SHEET
and B, the distance from the lamp to the film sample was 4.5 cm and the belt was set to move at 0.1 m/sec. (20 ft/min).
With Lamp C, the belt speed was 0.07 m/sec. (14 ft/min) and the lamp-to-sample distance was 10 cm. The results of exposing the film samples to ultraviolet radiation are summarized in Table 2. Except for Film F, the table records the number of passes under a lamp which were required in order to render the film colorless. For Film F, the table recoxds the number of passes tried, with the film in each case remaining colored (no change).

Results of Exposing Films Containing Colorant and Ultraviolet Radiation Transorber (UVRT) IS to Ultraviolet Radiation Excimer Lamp Film Lamp A Lamp B Fusion Lamp This Example describes the preparation of solid colored compositions adapted to be utilized as toners in an electrophotographic process. In every instance, the toner included Colorant A as described in Example 1; a polymer, DER
667, an epichlorohydrin-bisphenol A epoxy resin (Polymer D), Epon~ 100~4F (Dow Chemical Company, Midland, Michigan); and a charge control agent, Carrier A, which consisted of a very finely divided polymer-coated metal. The ultraviolet radiation transorber (UVRT) consisted of one or more of UVRT
B from Example 1, Irgacure~ 369 (UVRT D),, and Irgacure~ 184 (UVRT E); the latter two transorbers were described earlier and are available from Ciba-Geigy Corporation, Hawthorne, New York. In one case, a second polymer also was present, styrene acrylate ' SUBSTITUTE SHEET
1221, a styrene-acrylic acid copolymer (Hercules Incorporated, Wilmington, Delaware).
To prepare the toner, colorant, ultraviolet radiation transorber, and polymer were melt-blended in a Model 3 W
~5 800E, 7.6 cm x 17.8 cm (3 inch x 7 inch) two-roll research mill (Farrel Corporation, Ansonia, Connecticut). The resulting melt-blend was powdered in a Mikropul hammermill with a 0.25mm (0.010-inch) herringbone screen (R. D.
Kleinfeldt, Cincinnati,-Ohio) and then sieved for proper particle sizes in a Sturtvant, air five centimeter (two inch) micronizer (R. D. Kleinfeldt) to give what is referred to herein as a pretoner. Charge control agent then was added to the pretoner and the resulting mixture blended thoroughly.
Table 3 summarizes the compositions of the pretoners and Table 4 summarizes the compositions of the toners. -Summary of Pretoner Comp ositions Colorant UVRT Polymer Pre toner A (a) Type g T g r a _ 1 B 10 D 80 C

D 1 B 6.9 D 40 D 6.6 E 40 E 6.6 Summary of Toner Compositions Pretoner Charge Toner Tvoe ~ Control Aqent (a) A A 8.4 210 B B 8.4 210 C C 8.4 210 D D 8.4 210 Each toner was placed separately in a Sharp Model ZT-50TD1 toner cartridge and installed in either a Sharp Model Z-76 or a Sharp Model Z-77 xerographic copier (Sharp Electronics Corporation, Mahwah, New Jersey). Images were made in the usual manner on bond paper (Neenah Bond). The image-bearing sheets then were exposed to ultraviolet radiation from Lamp B as described in Example 1. In each case, the image was rendered colorless with one pass.

This example describes the preparation of a f3-cyclodextrin molecular inciudant having (1) an ultraviolet radiation transorber covalently bonded to the cyclodextrin outside of the cavity ofthe cyclodextrin and (2) a colorant associated with the cyclodextrin by means of hydrogen bonds and/or van der Waals forces.
A. Friedel-Crafts Acylation of Transorber A 250-ml, three-necked, round-bottomed reaction flask was fitted with a condenser and a pressure-equalizing addition funnel equipped with a nitrogen inlet tube. A magnetic stirring bar was placed in the flask. While being flushed with nitrogen, the flask was charged with 10 g (0.05 mole) of 1-hydroxycyclohexyl phenyl ketone (Irgacure~ 184, Ciba-Geigy Corporation, Hawthorne, New York), 100 ml of anhydrous tetrahydofuran (Aldrich Chemical Company, Inc., Milwaukee, Wisconsin), and 5 g~..(O.J5 mole) of succinic anhydride (Aldrich). To the continuously stirred contents of the flask then was added 6.7 g of anhydrous aluminum chloride (Aldrich).
The resulting reaction mixture was maintained at about 0°C in ' 30 an ice bath for about one hour, after which the mixture was allowed to warm to ambient temperature for two hours. The reaction mixture then was poured into a mixture of 500 ml of ice water and 100 ml of diethyl ether. The ether layer was removed after the addition of a small amount of sodium chloride to the aqueous phase to aid phase separation. The ether layer was dried over anhydrous magnesium sulfate. The ether was removed under reduced pressure, leaving 12.7 g (87 percent) of SUBSTITUTE SHEET
.. ... ,.' ',.
a white crystalline powder. The material was shown_to be 1-hydroxycyclohexyl 4-(2-carboxyethyl)carbonylphenyl ketone by nuclear magnetic resonance analysis.
S B. Preparation of Acylated Transorber Acid Chloride A 250-m1 round-bottomed flask fitted with a condenser was charged with 12.0 g of 1-hydroxycyclohexyl 4-(2-carboxyethyl)carbonylphenyl ketone (0.04 mole), 5.95 g (0.05 mole) of thionyl chloride (Aldrich), and 50 ml of diethyl ether. The resulting reaction mixture was stirred at 30°C for 30 minutes, after which time the solvent was removed under reduced pressure. The residue, a white solid, was maintained at-0.01 mm of Hg (0.01 Torr) for 30 minutes to remove residual solvent and excess thionyl chloride, leaving 12.1 g (94percent) of 1-hydroxycyclohexyl 4-(2-chloroformylethyl)carbonylphenyl ketone.
C. Covalent Bonding of Acylated Transorber to Cyclodextrin A 250-ml, three-necked, round-bottomed reaction flask containing a magnetic stirring bar and fitted with a thermometer, condenser, and pressure-equalizing addition ' funnel equipped with a nitrogen inlet tube was charged with 10 g (8.8 mmole) of i3-cyclodextrin (American Maize-Products Company, Hammond, Indiana), 31.6 g (98 mmoles) of 1-hydroxycyclohexyl 4-(2-chloroformylethyl)carbonylphenyl ketone; and 100 ml of N,N-dimethylformamide while being continuously flushed with nitrogen. The reaction mixture was heated to 50°C and 0.5 ml of triethylamine added. The reaction mixture was maintained at 50°C for an hour and allowed to cool to ambient temperature. In this preparation, no attempt was made to isolate the product, a i~-cyclodextrin to which an ultraviolet radiation transorber had been covalently coupled (referred to-hereinafter for convenience as i3-cyclodextrin-transorber).
_ The foregoing procedure was repeated to isolate the product of the reaction. At the conclusion of the procedure as described, the reaction mixture was concentrated in a rotary evaporator to roughly 10 percent of the original volume. The residue was poured into ice water to which sodium chloride then ' ~ SUBSTITUTE SHEET
..
was added to force the product out of solution. The resulting precipitate was isolated by filtration and washed with diethyl ether. The solid was dried under reduced pressure to give 24.8 g of a white powder. In a third preparation, the residue remaining in the rotary evaporator was placed on top of an approximately 7.5-cm column containing about 15 g of silica gel. The residue was eluted with N,N-dimethylformamide, with the eluant being monitored by .means of Whatman~ Flexible-Backed TLC Plates (Catalog No.
05-713-161, Fisher Scientific, Pittsburgh, Pennsylvania). The eluted product was isolated by evaporating the solvent. The structure of the product was verified by nuclear magnetic resonance analysis.
D. Association of Colorant with Cyclodextrin-Transorber-Prer~arationof Colored Composition To a solution of 10 g (estimated to be about 3.6 mmole) of . beta=cyclodextrin-transorber in 150 ml of N,N-dimethylformamide in a 250-ml round-bottomed flask was added at ambient temperature 1.2 g (3.6 mmole) of Malachite Green oxalate (Aldrich Chemical Company, Inc., Milwaukee, . Wisconsin), referred to hereinafter as Colorant A for convenience. The reaction mixture was stirred with a magnetic stirring bar for one hour at ambient temperature. Most of the solvent then was removed in a rotary evaporator and the residue was eluted from asilica gel column as already described. The beta-cyclodextrin-transorber Colorant A
inclusion complex moved down the column first, cleanly separating from both free Colorant A and beta-cyclodextrin-transorber. The eluant containing the complex .was collected and the solvent removed ir~ a rotary evaporator. The residue was subjected to a reduced pressure of 0.01 mm of Hg (0.01 Torr) to remove residual solvent to yield a blue-green powder.

E. Mutation of Colored Composition ' The beta-cyclodextrin-transorber Colorant A inclusion complex was exposed to ultraviolet radiation from two different lamps, Lamps A and B. Lamp A was a 222-nanometer excimer lamp assembly organized in banks of four cylindrical lamps having a length of. about 30 cm. The lamps were cooled by circulating water -through a centrally located or inner tube of the lamp and, as a consequence, they operated at a relatively low temperature, i.e., about 50°C. The power density at the lamp s outer surface typically is in the range of from about 4 to about 20 joules per square meter (J/m2). However, such range in reality merely reflects the capabilities of current excimer lamp power supplies; in the future, higher power densities may be practical. The distance from the lamp to the sample being irradiated was 4.5 cm. Lamp B was a 500-watt Hanovia medium pressure mercury lamp (Hanovia Lamp Co., Newark, New Jersey).
The distance from Lamp B to the sample being irradiated was about 15 cm.
A few drops of an N,N-dimethylformamide solution of the beta-cyclodextrin-transorber Colorant A inclusion complex were placed on a TLC plate and in a small polyethylene weighing pan.
Both samples were exposed to Lamp A and were decolorized (mutated to a colorless state? in 15-20 seconds. Similar results were obtained with Lamp B in 30 seconds.
A first control sample consisting of a solution of Colorant A and beta-cyclodextrin in N,N-dimethylformamide was not decolorized by Lamp A. A second control sample consisting of Colorant A and 1-hydroxycyclohexyl phenyl ketone in N,N-dimethylformamide was decolorized by Lamp A within 60 seconds.
On standing, however,'the color began to reappear within an hour.
To evaluate the effect of solvent on decolorization, 50 mg of the beta-cyclodextrin-transorber Colorant A inclusion complex was dissolved in 1 ml of solvent. The resulting solution or mixture was placed on a glass microscope slide and exposed to Lamp A for 1 minute. The rate of decolorization, i.e., the time to render the sample colorless, was directly proportional to the solubility of-the complex in the solvent, as summarized below.

R'O 96/19776 PCT/US95/15469 Solvent Solubility Decolorization Time S N,N-Dimethylformamide Poor 1 minute Dimethylsulfoxide Soluble <10 seconds Acetone Soluble <10 seconds Hexane Insoluble --Ethyl Acetate Poor 1 minute Finally, 10 mg of the beta-cyclodextrin-transorber Colorant A inclusion complex were placed on a glass microscope slide and crushed with a pestle. The resulting powder was exposed to Lamp A for 10 seconds. The powder turned colorless.
Similar results were obtained with lamp B, but at a slower rate.

Because of the possibility in the preparation of colored composition described in Example 3 for the acylated transorber acid chloride to at least partially occupy the cavity of the cyclodextrin, to the partial or complete exclusion of colorant, 25, a modified preparative procedure was carried out. Thus, this example describes the preparation of a beta-cyclodextrin molecular includant having (1) a colorant at least partially included within the cavity of the cyclodextrin and associated therewith by means of- hydrogen bonds and/or van der Waals forces and (2) an ultraviolet radiation transorber covalently bonded to the cyclodextrin outside of the cavity of the cyclodextrin.
A. Association of Colorant with a Cyclodextrin To a solution of 10.0 g (8.8 mmole) of beta-cyclodextrin in 1S0 ml of N,N-dimethylformamide was added 3.24 g (9.6 mmoles) of Colorant A. The resulting solution was stirred. at ambient temperature for one hour. The reaction solution was concentrated under reduced pressure in a rotary evaporator to a volume about one-tenth of the original volume. The residue rR'O 96!19776 PCT/US95/15469 was passed over a silica gel column as described in Part C of Example 1. The solvent in the eluant was removed under reduced pressure in a rotary evaporator to give 12.4 g of a blue-green powder, beta-cyclodextrin Colorant A inclusion complex.
B. Covalent Bonding of Acylated Transorber to Cyclodextrin Colorant Inclusion Complex - Preparation of Colored Composition A 250-ml, three-necked, round-bottomed reaction flask containing a magnetic stirring bar and fitted with a thermometer, condenser, and pressure-equalizing addition funnel equipped with a nitrogen inlet tube was charged with 10 g (9.6 mmole) of beta-cyclodextrin Colorant A inclusion complex, 31.6 g (98 mmoles) .of 1-hydroxycyclohexyl 4-(2-chloroformylethyl)carbonylphenyl ketone prepared as described in Part B of Example 1, and 150 ml of N,N-dimethylformamide while being continuously flushed with nitrogen. The reaction mixture was heated to 50°C and 0.5 ml of triethylamine added. The reaction mixture was maintained at 50°C for an hour and allowed to cool to ambient temperature.
The reaction mixture then was worked up as described in Part A, above, to give 14.2 g of beta-cyclodextrin-transorber Colorant . A inclusion complex, a blue-green powder.
C. Mutation of Colored Composition The procedures described in Part E of Example 1 were repeated with the beta-cyclodextrin-transorber Colorant A
inclusion complex prepared in part B, above, with essentially the same results.

This Example describes a method of preparing an ultraviolet radiation transorber designated phthaloylglycine-2959. .
The following was admixed in a 250m1 3-necked round bottomed flask fitted with a Dean & Stark adapter with ~ condenser and two glass stoppers: 20.5g (O.lmole) of the ' SUBSTTTUTE SHEET
wavelength selective sensitizer, phthaloylglycine (Aldrich); I.
24.68 (O.lmole) ofthe photoreactor, DAROCUR~ 2959 (Ciba-Geigy, Hawthorne, NY); 100 ml of benzene (Aldrich); and 0.4g p-toluene sulfonic acid (Aldrich). The mixture was heated at reflux for 3 hours after which time 1.8 ml of water was collected. The solvent was removed under reduced pressure to give 43.1g of white powder. The powder was recrystallized from 30~ ethyl acetate in hexane (Fisher) to yield 40.28 (930) of a white crystalline powder having a melting point of 153-4°C. The resulting product, designated phthaloyl glycine-2959, had the following physical parameters:
IR [Nujol Mull] ] umax 3440, 1760, 1740, 1680, 1600 cm-Z
IS 1HNMR [CDCL3] appm 1.64js], 4.25[m], 4.49[m], 6.92[m], 7.25[m], 7.86[m], 7.93[m], >3.06[m] ppm This Example describes a method of dehydrating the phthaloylglycine-2959 produced in Example 5.
The following was admixed in a 250m1 round bottomed flask fitted with a Dean & Stark adaptor with condenser:
21.68 (0.05 mole) phthaltoylglycine-2959; 100m1 of anhydrous benzene (Aldrich); and O.lg p-toulene sulfonic acid (Aldrich). The mixture was refluxed for 3 hours. After 0.7m1 of water had been collected in the trap, the solution was then removed under vacuum to yield 20.18 (97~) of a white solid. The solid was used without further purification.
The resulting reaction product had the following physical parameters:
IR (NUJOL) umax 1617Cm 1 (C=C-C=O) This Example describes a method of producing a beta-cyclodextrin having dehydrated phthaloylglycine-2959 groups from Example 6 covalently bonded thereto.
The following was admixed in a 100m1 round bottomed Flask:
S.Og (4.4 mmole) beta-cyclodextrin (American Maize Product Company, Hammond, Indiana) (designated beta-CD in the following reaction); 8.3g (20 mmole) dehydrated phthaloylglycine-2959;
50m1 of anhydrous DMF; 20m1 of benzene; and O.Olg p-tolulenesulfonyl chloride (Aldrich). The mixture was chilled in a salt/ice bath and stirred for 24 hours. The reaction mixture was poured into 150m1 of weak sodium bicarbonate solution and extracted three times wits 50m1 ethyl ether. The aqueous layer was then filtered to yield a white solid comprising the beta-cyclodextrin with phthaloylglycine-2959 group attached. A yield of 9.4g was obtained. Reverse phase TLC plate using a 50:50 DMF:acetonitrile mixture showed a new product peak compared to the starting materials.
Of course, the beta-cyclodextrin molecule has several primary alcohol_s and secondary alcohols with which the phthaloylglycine-2959 can react.

This example describes a method of associating a colorant and an ultraviolet radiation transorber with a molecular includant.-More particularly, this Example describes a method of associating the colorant crystal violet with the molecular includant beta-cyclodextrin covalently bonded to the ultraviolet radiation transorber phthaloylglycine-2959 of Example 7.
The following was placed in a 100m1 beaker-: 4.0 g beta cycloc.~xtrin having a dehydrated phthaloylglycine-2959 group;
and 50m1 of water. The water was heated to 70°C at which point the solution became clear. Next, 0.9g (2.4 mmole) crystal violet (Aldrich Chemical Company, Milwaukee, WI) was added to - 4~ -' ' SUBSTITUTE SHEET
the solution, and the solution was stirred for 20 minutes.
Next, the solution was then filtered. The filtrand was washed with the filtrate and then dried in a vacuum oven at 84°C. A
violet-blue powder was obtained having 4.1g (920) yield. The resulting reaction prodL~ct had the following physical parameters:
U.V. Spectrum DMF nm~ 610nm (cf cv Amy 604nm) This Example describes a method of producing the ultraviolet radiation transorber 4(4-hydroxyphenyl) butan-2-one-2959 (chloro substituted).
The following was admixed in a 250m1 round bottomed flask fitted with a condenser and magnetic stir bar: 17.6g (O.lmole) of the wavelength selective sensitizer, 4(4-hydroxyphenyl) butan-2-one (Aldrich Chemical Company, Milwaukee, WI); 26.48 (0.1 mole) of the photoreactor, chloro substituted DAROCUR~ 2959 (Ciba-Geigy Corporation, Hawthorne, New york); 1.0 ml of pyridine (Aldrich Chemical Company, Milwaukee, WI); and' 100m1 of anhydrous tetrahydrofuran (Aldrich Chemical Company, Milwaukee, WI). The mixture was refluxed for 3 hours and the solvent partially removed under reduced pressure (60o taken off). The reaction mixture was then poured into ice water and extracted with two 50m1 aliquots of diethyl ether. After drying over anhydrous magnesium sulfate and removal of solvent,- 39.1g of white solvent remained. Recrystallization of the powder from 300 ethyl acetate in hexane gave 36.78 (91~) of a white crystalline powder, having a melting point of 142-3°C.
The resulting reaction product had the following physical parameters:
IR [Nujol Mull'] um~r 3460, 1760, 1700, 1620, 1600 cm-1 1H [CDCL3] appm 1.62[s], 4.2[m], 4.5[m], 6.9[m] ppm The ultraviolet radiation transorber produced in this Example, 4(4-hydroxyphenyl) butan-2-one-2959 (chloro substituted), may be associated with beta-cyclodextrin and a colorant such as crystal violet, using the methods described above in Examples 6 through 8 wherein 4(4-hydroxyphenyl) butan-2-one-2959 (chloro substituted) would be substituted for the dehydrated phthaloylglycine-2959 in the methods in Examples 6 through 8.

This Example demonstrates that the 222 nanometer excimer lamps illustrated in FIG. 3 produce uniform intensity readings on a surface of a substrate 5.5 centimeters from the lamps, at the numbered locations, in an amount sufficient to mutate the colorant in the compositions of the present invention which are present on the surface of the substrate. The lamp 10 comprises a lamp housing 15 with four excimer lamp bulbs 20 positioned in parallel, the excimer lamp bulbs 20 are approximately 30 cm in length. The lamps are cooled by circulating water through a centrally located or inner tube (not shown) and, as a consequence, the lamps are operated at a relatively low temperature, i.e., about 50°C. The power density at the lamp's outer surface typically is in the range of from about 4 to about 20 joules per square meter (J/m~).
Table 5 summarizes the intensity readings which were obtained by a meter located on the surface of the substrate.
The readings numbered 1, 4, 7, and 10 were located approximately 7.0 centimeters from the left end of the column as shown~in FIG. 3. The readings numbered 3, 6, 9, and 12 were located approximately 5.5 centimeters from the right end of the column as shown in FTG. 3. The readings numbered 2, 5, 8, and 11 were centrally located approximately 17.5 centimeters from each end of the column as shown in FIG. 3.

Background (~CW) Reading (mW/cmZ) 24.57 9.63 19.56 9.35 22.67 9.39 19.62 9.33 17.90 9.30 19.60 9.30 21.41 9.32 17.91 9.30 23.49 9.30 19.15 9.36 17.12 9.35 21.44 9,37 This Example demonstrates that the 222 nanometer excimer lamps illustrated in FIG. 4 produce uniform intensity readings on a surface of a substrate 5.5 centimeters from the lamps, at the numbered locations, in an amount sufficient to mutate the colorant in the compositions of the present invention which are present on the surface of the substrate. The excimer lamp 10 comprises a lamp housing 15 with four excimer lamp bulbs 20 positioned in parallel, the excimer lamp bulbs 20 are approximately 30 cm in length. The lamps are cooled by circulating water through a centrally located or inner tube (not shown) and, as a consequence, the lamps are operated at a relatively low temperature, i.e., about 50°C. The power density at the lamp's outer surface typically is in the range of from about 4 to about 20 joules per square meter (J/m').
Table 6 summarizes the intensity readings which were obtained by a meter located on the surface of the substrate.
The readings numbered 1, 4, and 7 were located approximately 7.0 centimeters from the left end of the columns as shown in FIG. 4. The readings numbered 3, 6, and 9 were located approximately 5.5 centimeters from the right end of the columns as shown in FIG. 4. The readings numbered 2, 5, 8 were centrally located approximately 17.5 centimeters from each end of the columns as shown in FIG. 4.

WO 96!19776 PC"T/US95/15469 Background (,uW) Reading (mW/cmZ) 23.46 9.32 16.12 9.31 17.39 9.32 20.19 9.31 16.45 g.2g 20.42 9.31 18.33 9.32 15.50 9.30 20.90 9.34 This Example demonstrates the intensity produced by the 222 nanometer excimer lamps illustrated in FIG. 5, on a surface of a substrate, as a function of the c' .stance of the surface from the lamps, the intensity being sufficient to mutate the colorant in the compositions of the present invention which are present on the surface of the substrate. The excimer lamp 10 comprises a lamp housing 15 with four excimer lamp bulbs 20 positioned in parallel, the excimer lamp bulbs 20 are approximately 30 cm in length. The lamps are cooled by circulating water through a centrally located or inner tube (not shown) and, as a consequence, the lamps are operated at a relatively low temperature, i.e., about 50°C. The power density at the lamp's outer surface typically is in the range of from about 4 to about 20 joules per square meter (J/mz).
Table 7 summarises the intensity readings which were obtained by a meter located on the surface of the substrate at position 1 as shown in FIG. 5. Position 1 was centrally located approximately 17 centimeters from each end of the column as shown in FIG. 5.

Distance (cm) Background (,uW) Reading (mW/cmz) 5-5 18.85 9.30 6.0 15.78 9.32 18.60 9.32 10 15 20.90 9.3g 21.67 9.48 19.86 9_69 22.50 11.14 26.28__ 9.10 15 40 24.71 7,5g 50 26.95 5.20 Having thus described the invention, numerous changes and 20 modifications hereof will be readily apparent to those having ordinary skill in tha art w~t::~ut departing from the spirit or scope of the invention.

Claims (42)

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:
1. A data processing form for use with photo-sensing apparatus that detect a presence of indicia at indicia-receiving locations on the form, the form comprising:
a sheet of carrier material; and a plurality of indicia-receiving locations on at least a first surface of the sheet, the indicia-receiving locations being defined by a mutable colored composition comprising a mutable colorant and an ultraviolet radiation transorber;
wherein the indicia-receiving locations become substantially undetectable by photo-sensing apparatus upon irradiating the colored composition with ultraviolet radiation at a dosage level sufficient to irreversibly mutate the colorant.
2. The data processing form of claim 1, wherein the mutable colored composition further comprises a molecular includant.
3. The data processing form of claim 2, wherein the molecular includant is selected from the group consisting of clathrates, zeolites and cyclodextrins.
4. The data processing form of claim 2, wherein the indicia-receiving locations are formed from a mutable colored composition in which the mutable colorant and the ultraviolet radiation transorber are associated with the molecular includant.
5. The data processing form of claim 1, further comprising text formed from a mutable colored composition.
6. The data processing form of claim 1, further comprising graphics formed from a mutable colored composition.
7. The data processing form of claim 1, wherein the form is a transmitted-read form.
8. The data processing form of claim 1, wherein the form is a reflective-read form.
9. The data processing form of claim 1, wherein the carrier material is substantially opaque.
10. The data processing form of claim 1, wherein the carrier material is substantially translucent.
11. The data processing form of claim 1, wherein the carrier material is substantially transparent.
12. A data processing form for use with photo-sensing apparatus that detect a presence of indicia at indicia-receiving locations on the form, the form comprising:
a sheet of carrier material; and a plurality of indicia at indicia-receiving locations on at least a first surface of the sheet, at least a portion of the indicia being mutable indicia formed from a mutable coloured composition comprising a mutable colorant and an ultraviolet radiation transorber;
wherein at least a portion of the mutable indicia become substantially undetectable by photo-sensing apparatus upon irradiating the coloured composition with ultraviolet radiation at a dosage level sufficient to irreversibly mutate the colorant.
13. The data processing form of claim 12, wherein the mutable indicia are formed from a mutable coloured composition further comprising a molecular includant.
14. The data processing form of claim 13, wherein the molecular includant is selected from the group consisting of clathrates, zeolites and cyclodextrins.
15. The data processing form of claim 12, wherein the mutable indicia are formed from a mutable coloured composition in which the mutable colorant and the ultraviolet radiation transorber are associated with the molecular includant.
16. The data processing form of claim 12, wherein the form is a transmitted-read form.
17. The data processing form of claim 12, wherein the form is a reflective-read form.
18. The data processing form of claim 12, wherein the carrier material is substantially opaque.
19. The data processing form of claim 12, wherein the carrier material is substantially translucent.
20. The data processing form of claim 12, wherein the carrier material is substantially transparent.
21. A method for improving the readability of a data processing form used in photo-sensing apparatus that detect a presence of indicia at indicia-receiving locations on the form, the method comprising:
providing a data processing form that includes a sheet of carrier material and indicia located in a plurality of indicia receiving locations on at least a first surface of the sheet, the indicia-receiving locations being defined by a mutable coloured composition comprising a mutable colorant and an ultraviolet radiation transorber; and irradiating the coloured composition with ultraviolet radiation at a dosage level sufficient to irreversibly mutate the colorant so that the indicia-receiving locations are substantially undetectable by photo-sensing apparatus, leaving the indicia to be detected.
22. The method of claim 21, wherein the coloured composition is irradiated with ultraviolet radiation at a wavelength of from about 100 to about 375 nanometers.~~
23. The method of claim 22, wherein the ultraviolet radiation is incoherent, pulsed ultraviolet radiation from a dielectric barrier discharge excimer lamp.
24. The method of claim 21, wherein the data processing form is a transmitted-read data processing form.
25. The method of claim 21, wherein the data processing form is a reflective-read data processing form.
26. A method of modifying indicia on a data processing form used in photo-sensing apparatus that detect a presence of indicia at indicia-receiving locations on the form, the method comprising:
providing a data processing form that includes a sheet of carrier material and a plurality of indicia at indicia receiving locations on at least a first surface of the sheet, at least a portion of the indicia being mutable indicia formed from a coloured composition comprising a mutable colorant and an ultraviolet radiation transorber; and irradiating the coloured composition with ultraviolet radiation at a dosage level sufficient to irreversibly mutate the colorant so that the mutable indicia are substantially undetectable by photo-sensing apparatus.
27. The method of claim 26, wherein the coloured composition is irradiated with ultraviolet radiation at a wavelength of from about 100 to about 375 nanometers.
28. The method of claim 27, wherein the ultraviolet radiation is incoherent, pulsed ultraviolet radiation from a dielectric barrier discharge excimer lamp.
29. The method of claim 26, wherein the data processing form is a transmitted-read data processing form.
30. The method of claim 26, wherein the data processing form is a reflective-read data processing form.
31. A data processing form for use with photo-sensing apparatus that detect a presence of indicia at indicia-receiving locations on the form, the form comprising:
a sheet of carrier material; and a plurality of indicia-receiving locations on at least a first surface of the sheet, the indicia-receiving locations being defined by a mutable coloured composition comprising a mutable colorant;
wherein the indica-receiving locations become substantially undetectable by photo-sensing apparatus upon irreversibly mutating the colorant.
32. A data processing form for use with photo-sensing apparatus that detect a presence of indicia at indicia-receiving locations on the form, the form comprising:
a sheet of carrier materials; and a plurality of indicia at indicia-receiving locations on at least a first surface of the sheet, at least a portion of the indicia being mutable indicia formed from an irreversibly mutable coloured composition comprising a mutable colorant;
wherein at least a portion of the mutable indicia become substantially undetectable by photo-sensing apparatus upon irreversibly mutating the colorant.
33. A method for improving the readability of a data processing form used in photo-sensing apparatus that detect a presence of indicia at indicia-receiving locations on the form, the method comprising:
providing a data processing form that includes a sheet of carrier material and indicia located in a plurality of indicia-receiving locations on at least a first surface of the sheet, the indicia-receiving locations being defined by a mutable coloured composition comprising a mutable colorant; and irreversibly mutating the colorant so that the indicia-receiving locations are substantially undetectable by photo-sensing apparatus, leaving the indicia to be detected.
34. A method of modifying indicia on a data processing form used in photo-sensing apparatus that detect a presence of indicia at indicia-receiving locations on the form, the method comprising:
providing a data processing form that includes a sheet of carrier material and a plurality of indicia at indicia-receiving locations on at least a first surface of the sheet, at least a portion of the indicia being mutable indicia formed from a coloured composition comprising a mutable colorant; and irreversibly mutating the colorant so that the mutable indicia are substantially undetectable by photo-sensing apparatus.
35. The data processing form of claim 1, further comprising at least one indicia positioned within at least one of said indicia-receiving locations.
36. The data processing form of claim 35, wherein the at least one indicia comprises a non-mutable ink composition.
37. The data processing form of claim 31, further comprising at least one indicia positioned within at least one of said indicia-receiving locations.
38. The data processing form of claim 37, wherein the at least one indicia comprises a non-mutable ink composition.
39. The data processing form of claim 12, wherein at least one of said indicia-receiving locations comprises a non-mutable ink composition.
40. The data processing form of claim 32, wherein at least one of said indicia-receiving locations comprises a non-mutable ink composition.
41. The method of claim 26, wherein the indicia-receiving locations are detectable by the photo-sensing apparatus.
42. The method of claim 34, wherein the indicia-receiving locations are detectable by the photo-sensing apparatus.
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Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6017661A (en) 1994-11-09 2000-01-25 Kimberly-Clark Corporation Temporary marking using photoerasable colorants
US5681380A (en) 1995-06-05 1997-10-28 Kimberly-Clark Worldwide, Inc. Ink for ink jet printers
EP0820618A1 (en) * 1995-04-10 1998-01-28 United Parcel Service Of America, Inc. Two-camera system for locating and storing indicia on conveyed items
JP2001515524A (en) 1995-06-05 2001-09-18 キンバリー クラーク ワールドワイド インコーポレイテッド New pre-dye
CO4440458A1 (en) * 1995-06-05 1997-05-07 Kimberly Clark Co TEMPORARY MARKING, ULTRAVIOLET RADIATION DETECTION, AND PRINTING, USING PHOTOBORRABLE DYES
ES2161357T3 (en) 1995-06-28 2001-12-01 Kimberly Clark Co STABILIZING COLORING COMPOSITION.
US6524379B2 (en) 1997-08-15 2003-02-25 Kimberly-Clark Worldwide, Inc. Colorants, colorant stabilizers, ink compositions, and improved methods of making the same
EP1062285A2 (en) 1998-06-03 2000-12-27 Kimberly-Clark Worldwide, Inc. Neonanoplasts and microemulsion technology for inks and ink jet printing
SK1552000A3 (en) 1998-06-03 2000-08-14 Kimberly Clark Co Novel photoinitiators and applications therefor
BR9912003A (en) 1998-07-20 2001-04-10 Kimberly Clark Co Enhanced inkjet ink compositions
DE69930948T2 (en) 1998-09-28 2006-09-07 Kimberly-Clark Worldwide, Inc., Neenah CHELATE WITH CHINOIDS GROUPS AS PHOTOINITIATORS
US6368396B1 (en) 1999-01-19 2002-04-09 Kimberly-Clark Worldwide, Inc. Colorants, colorant stabilizers, ink compositions, and improved methods of making the same
US6331056B1 (en) 1999-02-25 2001-12-18 Kimberly-Clark Worldwide, Inc. Printing apparatus and applications therefor
US6294698B1 (en) 1999-04-16 2001-09-25 Kimberly-Clark Worldwide, Inc. Photoinitiators and applications therefor
US6368395B1 (en) 1999-05-24 2002-04-09 Kimberly-Clark Worldwide, Inc. Subphthalocyanine colorants, ink compositions, and method of making the same
US20030080191A1 (en) * 2001-10-26 2003-05-01 Allen Lubow Method and apparatus for applying bar code information to products during production
US20050131733A1 (en) * 2001-12-17 2005-06-16 Allen Lubow Sealable individual bar coded packets
WO2003052681A1 (en) * 2001-12-17 2003-06-26 International Barcode Corporation Double-sided bar code doubling as a single bar code
US7429062B2 (en) * 2002-10-30 2008-09-30 Xerox Corporation Anti-counterfeiting see-through moire security feature using frequency-varying patterns

Family Cites Families (644)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1876880A (en) * 1932-09-13 Othmab dbapal
US2237885A (en) * 1941-04-08 Stable diazo compounds
CA552565A (en) 1958-02-04 Scalera Mario Stabilization of copperized azo dyestuffs
CA483214A (en) 1952-05-13 General Aniline And Film Corporation Diazo amino printing colors
US2185153A (en) * 1939-12-26 Stable ice color producing
CA465496A (en) 1950-05-30 Z. Lecher Hans Stabilization of colouring compositions containing diazonium salts
CA458808A (en) 1949-08-09 L. Gardner Frank Cleat assembly for athletic shoes
US2612495A (en) * 1952-09-30 Process of effecting same
CA463022A (en) 1950-02-07 General Aniline And Film Corporation Stable diazo salt preparation
US2381145A (en) * 1945-08-07 Stable diazo salt preparation
US2171976A (en) * 1939-09-05 Process of manufacturing stabilized
CA461082A (en) 1949-11-15 Jozsef Biro Laszlo Writing paste
US2628959A (en) * 1953-02-17 Process for making stabilized
US582853A (en) * 1897-05-18 Adolf feer
CA463021A (en) 1950-02-07 Streck Clemens Stable diazo salt preparation and process of preparing them
US3123647A (en) * 1964-03-03 Certificate of correction
CA537687A (en) 1957-03-05 J. Leavitt Julian Stable solutions of mixtures of naphthols and stabilized diazo compounds
CA460268A (en) 1949-10-11 L. Walsh William Stable diazonium salt preparation and process of preparing same
US2809189A (en) * 1957-10-08 Method of producing stabilized
US575228A (en) * 1897-01-12 Moritz von gallois
CA779239A (en) 1968-02-27 General Electric Company Information recording
US1325971A (en) * 1919-12-23 Kazue akashi
CA465495A (en) 1950-05-30 Z. Lecher Hans Stabilization of colouring compositions containing diazonium salts
CA571792A (en) 1959-03-03 Ciba Limited Process for printing textiles and printing preparations therefor
CA413257A (en) 1943-06-15 Albert Genest Homer Hat bat shrinking and felting machine
CA465499A (en) 1950-05-30 American Cyanamid Company Stabilization of printing pastes containing diazonium salts
CA517364A (en) 1955-10-11 H. Von Glahn William Stabilized diazonium salts and process of effecting same
US893636A (en) * 1904-06-14 1908-07-21 Frederick J Maywald Coloring material and process of making same.
BE398850A (en) * 1932-09-30
US1013544A (en) * 1910-08-30 1912-01-02 Equilibrator Company Ink.
CH94118A (en) 1913-12-24 1922-04-01 Lebertre Jules Suction cup.
US1364406A (en) * 1920-04-24 1921-01-04 Chester Novelty Company Inc Ink-stick
US1436856A (en) * 1922-01-31 1922-11-28 George W Brenizer Printing process ink
NL21515C (en) * 1924-12-28
US1803906A (en) * 1928-02-16 1931-05-05 Kalle & Co Ag Diazo-types stabilized with alpha derivative of thiocarbonic acid and alpha processof preparing them
US1844199A (en) * 1928-08-30 1932-02-09 Rca Corp Pyro-recording paper
DE498028C (en) * 1929-05-15 1930-07-14 I G Farbenindustrie Akt Ges Fixable layer for the color fading process
GB355686A (en) 1929-06-08 1931-08-26 Kodak Ltd Improvements in or relating to combined kinematographic and sound record films
CH147668A (en) 1929-06-17 1931-06-15 Chem Ind Basel Process for the production of a solid, stable diazo preparation.
DE503314C (en) * 1929-07-30 1930-07-29 I G Farbenindustrie Akt Ges Layers of fading paint
BE369421A (en) * 1929-09-09
US1962111A (en) * 1930-01-07 1934-06-12 Firm Chemical Works Formerly S Stable tetrazomonoazo compounds and their preparation
US2058489A (en) * 1930-06-16 1936-10-27 Nat Aniline & Chem Co Inc Dye powder compositions
BE381968A (en) * 1930-08-14
BE390157A (en) * 1931-08-04
US2062304A (en) * 1931-11-19 1936-12-01 Gaspar Bela Process for the production of a colored sound film
US2005378A (en) * 1931-12-16 1935-06-18 Waldhof Zellstoff Fab Manufacture of cellulose material
US2049005A (en) * 1932-01-04 1936-07-28 Gaspar Bela Color-photographic bleach out dyestuff layers
US1975409A (en) 1932-05-19 1934-10-02 Gen Aniline Works Inc Solid stable diazoazo salts and process of preparing them
BE397731A (en) * 1932-07-21
US2125015A (en) * 1932-10-26 1938-07-26 Gaspar Bela Multicolor photographic material and a process for using the same
US2106539A (en) 1933-07-13 1938-01-25 Gen Aniline Works Inc Stable diazo salt preparations and process of preparing them
US2054390A (en) * 1934-08-09 1936-09-15 Photographic bleachjng-out layers
DE678456C (en) * 1935-01-05 1939-07-18 Bela Gaspar Dr Process for the production of photographic or cinematographic images with and without sound recordings, in which dye images are combined with a silver image
US2090511A (en) * 1935-04-18 1937-08-17 Calco Chemical Co Inc Colloidized vat dye
BE417861A (en) 1935-05-04
GB458808A (en) * 1935-06-28 1936-12-28 Kenneth Herbert Saunders The manufacture of new stabilised diazo compounds and compositions of matter
US2220178A (en) * 1936-01-09 1940-11-05 Gen Aniline & Film Corp Process of producing a sound track on a light-sensitive color film
GB486006A (en) * 1936-10-27 1938-05-27 Christopher William Crouch Whe Improvements in colour photography
US2159280A (en) * 1936-12-31 1939-05-23 Eastman Kodak Co Sound image on multilayer film
GB492711A (en) 1937-03-22 1938-09-22 Bela Gaspar Process for the production of a combined coloured picture and sound record film
US2181800A (en) * 1937-06-23 1939-11-28 Calco Chemical Co Inc Colloidized azo coloring matter
CH197808A (en) 1937-06-28 1938-05-31 Fritz Busenhart Air humidifier on radiators.
US2230590A (en) * 1938-01-22 1941-02-04 Gen Aniline & Film Corp Color photographic process
BE433290A (en) * 1938-03-16
US2154996A (en) * 1938-06-24 1939-04-18 West Virginia Pulp & Paper Com Manufacture of calcium sulphite filled paper
GB518612A (en) 1938-07-27 1940-03-04 Bela Gaspar Process for the manufacture of combined picture and sound films
BE437152A (en) * 1938-12-03
US2416145A (en) * 1938-12-27 1947-02-18 Eterpen Sa Financiera Writing paste
US2349090A (en) * 1939-05-25 1944-05-16 Ici Ltd Stabilized polydiazo-phthalocyanines
GB539912A (en) 1939-08-07 1941-09-29 Durand & Huguenin Ag Process for the manufacture of new preparations containing the components for the production of ice colours and their application to textile printing
NL54339C (en) * 1939-11-20
US2242431A (en) * 1940-02-01 1941-05-20 Auto Specialties Mfg Co Jack
US2364359A (en) * 1940-11-06 1944-12-05 American Cyanamid Co Printing compositions and methods of printing therewith
GB600451A (en) 1940-11-06 1948-04-09 American Cyanamid Co Direct dye planographic printing compositions
US2356618A (en) * 1941-05-23 1944-08-22 Du Pont Stabilized diazo printing paste
US2361301A (en) * 1941-07-03 1944-10-24 Du Pont Stabilization of azo dyestuffs
US2346090A (en) * 1942-08-19 1944-04-04 Eastman Kodak Co Photographic bleach-out layer
US2402106A (en) * 1942-09-09 1946-06-11 Gen Aniline & Film Corp Stable diazonium salts
US2382904A (en) * 1942-10-10 1945-08-14 Du Pont Stabilization of organic substances
US2386646A (en) * 1943-07-05 1945-10-09 American Cyanamid Co Stabilization of coloring compositions containing diazonium salts
FR996646A (en) 1945-05-11 1951-12-24 Process for obtaining color films by subtractive trichrome synthesis, and its application to sound cinematography
GB618616A (en) 1946-09-25 1949-02-24 George Trapp Douglas Improvements in textile printing processes
GB626727A (en) 1946-11-29 1949-07-20 Geoffrey Bond Harrison Improvements in or relating to the recording of sound tracks in colour film
US2527347A (en) * 1946-12-27 1950-10-24 Gen Aniline & Film Corp Nondusting compositions for stabilizing diazo salts
US2477165A (en) * 1946-12-27 1949-07-26 Gen Aniline & Film Corp Nondusting compositions containing stabilized diazo compounds
US2580461A (en) * 1947-08-27 1952-01-01 Sulphite Products Corp Ultraviolet-radiation impervious wrapping material
US2612494A (en) * 1948-10-22 1952-09-30 Gen Aniline & Film Corp Stabilized diazonium salts and process of effecting same
US2647080A (en) * 1950-06-30 1953-07-28 Du Pont Light-stabilized photopolymerization of acrylic esters
US2601669A (en) * 1950-09-30 1952-06-24 American Cyanamid Co Stabilized barium and strontium lithol toners
US2768171A (en) * 1951-03-28 1956-10-23 Ici Ltd Acid stabilized isothiouronium dyestuffs
US2680685A (en) * 1951-04-10 1954-06-08 Us Agriculture Inhibition of color formation in nu, nu-bis (2-hydroxyethyl) lactamide
DE903529C (en) * 1951-09-01 1954-02-08 Kalle & Co Ag Photosensitive layers
US2773056A (en) * 1952-07-12 1956-12-04 Allied Chem & Dye Corp Stable finely divided alkyl amine dyes
US2834773A (en) * 1952-09-23 1958-05-13 American Cyanamid Co Stabilization of copperized azo dyestuffs
US2732301A (en) * 1952-10-15 1956-01-24 Chxcxch
US2798000A (en) * 1952-12-16 1957-07-02 Int Minerals & Chem Corp Printing ink with anti-skinning agent
US2827358A (en) * 1953-06-15 1958-03-18 American Cyanamid Co Preparation of stable compositions of sulfuric acid half esters of leuco vat dyestuffs
BE529607A (en) * 1953-06-18
BE540426A (en) * 1953-07-13
DE1022801B (en) 1953-11-14 1958-01-16 Siemens Ag Process for the production of branched polymerizing, soluble and stretchable or crosslinked copolymers with low dielectric loss, high dielectric strength and heat resistance
US2728784A (en) * 1954-03-17 1955-12-27 Eastman Kodak Co Stabilization of oxidizable materials and stabilizers therefor
US2955067A (en) * 1954-10-20 1960-10-04 Rohm & Haas Cellulosic paper containing ion exchange resin and process of making the same
US2875045A (en) * 1955-04-28 1959-02-24 American Cyanamid Co Alum containing antioxidant and manufacture of sized paper therewith
DE1119510B (en) * 1956-03-14 1961-12-14 Bayer Ag Process for the production of insoluble, crosslinked high molecular weight polyesters
DE1047013B (en) 1956-05-15 1958-12-18 Agfa Ag Process for photothermographic imaging
DE1039835B (en) 1956-07-21 1958-09-25 Bayer Ag Photographic process for the preparation of dye images
DE1040562B (en) 1956-08-23 1958-10-09 Hoechst Ag Process for the production of solid, durable diazonium compounds
DE1047787B (en) 1956-08-24 1958-12-31 Hoechst Ag Process for the production of solid, durable diazonium compounds
DE1045414B (en) 1956-09-19 1958-12-04 Hoechst Ag Process for the production of solid, durable diazonium compounds
US2992198A (en) * 1956-12-24 1961-07-11 Funahashi Takaji Process of producing liquid color
US2992129A (en) * 1957-03-25 1961-07-11 Ludlow Corp Gummed product printed with conditioner
US2936241A (en) * 1957-05-16 1960-05-10 Sperry Rand Corp Non-printing indicia ink
US2892865A (en) * 1957-09-20 1959-06-30 Erba Carlo Spa Process for the preparation of tertiary esters of benzoylcarbinol
US2940853A (en) * 1958-08-21 1960-06-14 Eastman Kodak Co Azide sensitized resin photographic resist
US3071815A (en) * 1958-09-09 1963-01-08 Allied Chem Process for producing free flowing oil soluble fusible organic dyestuffs
DE1154069B (en) 1958-12-27 1963-09-12 Bayer Ag Process for the production of water-insoluble azo dyes on structures made of aromatic polyesters, in particular polyethylene terephthalates, synthetic polyamides and polyurethanes
US3304297A (en) 1959-02-12 1967-02-14 Ciba Ltd Dyestuffs consisting of organic dyestuffs bound to polyhydroxylated organic polymers
DE1132540B (en) 1959-09-15 1962-07-05 Hoechst Ag Process for the production of solutions of coupling components of the ice color series
NL256641A (en) * 1959-10-09
IT649406A (en) * 1960-03-24
US3242215A (en) * 1960-04-04 1966-03-22 Du Pont Bis-(2-chloroacryloyl) aryl compounds
US3075014A (en) * 1960-06-14 1963-01-22 Richardson Merrell Inc Basic substituted alkoxy diphenylalkanols, diphenylalkenes and diphenylalkanes
US3104973A (en) * 1960-08-05 1963-09-24 Horizons Inc Photographic bleaching out of cyanine dyes
NL270002A (en) * 1960-10-08
NL270722A (en) * 1960-10-27
DE1132450B (en) 1960-11-21 1962-06-28 Max Adolf Mueller Dipl Ing Hydrostatic single wheel drive, especially for off-road vehicles
US3154416A (en) * 1961-03-30 1964-10-27 Horizons Inc Photographic process
BE619493A (en) * 1961-06-30
NL282186A (en) 1961-08-22
US3121632A (en) * 1961-08-30 1964-02-18 Horizons Inc Photographic process and composition including leuco triphenylmethane dyes
US3155509A (en) * 1961-09-05 1964-11-03 Horizons Inc Photographic process
US3140948A (en) * 1961-10-18 1964-07-14 Horizons Inc Photography
US3282886A (en) * 1962-07-27 1966-11-01 Du Pont Polycarbonamides of improved photostability and dye lightfastness
US3445234A (en) 1962-10-31 1969-05-20 Du Pont Leuco dye/hexaarylbiimidazole imageforming composition
US3305361A (en) 1962-12-28 1967-02-21 Gen Electric Information recording
US3313797A (en) 1963-01-17 1967-04-11 Du Pont Stabilized fiber-reactive dyes
US3300314A (en) 1963-02-01 1967-01-24 Eastman Kodak Co Nonsilver, light-sensitive photographic elements
US3266973A (en) * 1963-07-25 1966-08-16 Richard P Crowley Method of preparing adsorbent filter paper containing crystalline zeolite particles, and paper thereof
US3284205A (en) * 1963-09-17 1966-11-08 Horizons Inc Benzotriazole and heterocyclic ketimide activators for leuco compounds
NL125868C (en) 1964-01-29
US3363969A (en) 1964-02-12 1968-01-16 Du Pont Dyeing and light stabilizing nylon yarns with sulfonated dyes; sterically hindered phenols, and alkylnaphthalene sulfonates with or without other ultraviolet light absorbers
US3359109A (en) 1964-04-29 1967-12-19 Du Pont Leuco dye-n, n. o-triacylhydroxylamine light-sensitive dye former compositions
GB1070863A (en) 1964-06-12 1967-06-07 Gevaert Photo Prod Nv Light-sensitive photographic materials
US3397984A (en) 1965-08-19 1968-08-20 Eastman Kodak Co Silver dye bleach materials improving image density
US3361827A (en) 1965-01-05 1968-01-02 American Plastic & Chemical Co Preparation of benzalacetophenone
US3418118A (en) 1965-06-03 1968-12-24 Du Pont Photographic processes and products
US3479185A (en) 1965-06-03 1969-11-18 Du Pont Photopolymerizable compositions and layers containing 2,4,5-triphenylimidazoyl dimers
CH475214A (en) 1965-06-04 1969-07-15 Ciba Geigy Process for the preparation of sulfonic acid or sulfonate-containing hydroxybenzophenones
US3563931A (en) 1965-08-06 1971-02-16 Shojiro Horiguchi Method of making chromogen-bonded-polymer and products thereof
US3502476A (en) 1965-10-20 1970-03-24 Konishiroku Photo Ind Light-sensitive photographic materials
US3464841A (en) 1965-10-23 1969-09-02 Customark Corp Method of preparing security paper containing an ultraviolet inhibitor
GB1184054A (en) 1966-04-05 1970-03-11 Agfa Gevaert Nv Thermographic Recording Processes and Materials
US3637337A (en) 1966-08-03 1972-01-25 Brian Pilling Improving the dye lightfastness of acrylic substrates with triazine compounds
US3541142A (en) 1966-09-02 1970-11-17 Merck & Co Inc (4-(2-hydroxymethylalkanoyl)phenoxy) acetic acids
US3547646A (en) 1966-12-16 1970-12-15 Keuffel & Esser Co Light-sensitive imaging material containing hydrazones
US3503744A (en) 1967-02-16 1970-03-31 Keuffel & Esser Co Photographic bleaching out of azomethine and azoaniline dyes
US3453258A (en) 1967-02-20 1969-07-01 Corn Products Co Reaction products of cyclodextrin and unsaturated compounds
US3607863A (en) 1967-02-28 1971-09-21 Dyckerhoff Zementwerke Ag Clathrate compounds
US3453259A (en) 1967-03-22 1969-07-01 Corn Products Co Cyclodextrin polyol ethers and their oxidation products
SE312870B (en) 1967-07-17 1969-07-28 Asea Ab
US3565753A (en) 1967-07-17 1971-02-23 Ncr Co Capsule-cellulose fiber units and products made therewith
US3637581A (en) 1967-08-04 1972-01-25 Shojiro Horiguchi Method of making chromogen-bonded-polymer and products thereof
US3642472A (en) 1967-08-30 1972-02-15 Holotron Corp Bleaching of holograms
US3574624A (en) 1968-02-08 1971-04-13 Eastman Kodak Co Photographic elements containing dithiolium salts
US3615562A (en) 1968-04-25 1971-10-26 Rca Corp Cyanine dye photographic film
US3549367A (en) 1968-05-24 1970-12-22 Du Pont Photopolymerizable compositions containing triarylimidazolyl dimers and p-aminophenyl ketones
GB1264636A (en) 1968-07-15 1972-02-23
IE33221B1 (en) 1968-07-15 1974-04-17 Fuji Photo Film Co Ltd Pressure-sensitive copying paper
DE1769854C3 (en) 1968-07-26 1982-08-19 Bayer Ag, 5090 Leverkusen Photoinitiators and processes for photopolymerization
US3595659A (en) 1968-10-03 1971-07-27 Little Inc A Non-silver direct positive dye bleachout system using indigoid dyes and colored activators
US3595655A (en) 1968-10-03 1971-07-27 Little Inc A Non-silver direct positive dyes bleachout system using polymethine dyes and colorless activators
US3595658A (en) 1968-10-03 1971-07-27 Little Inc A Non-silver direct positive dye bleachout system using polymethine dyes and colored activators
US3595657A (en) 1968-10-03 1971-07-27 Little Inc A Non-silver direct positive dye bleachout system using indigoid dyes and colorless activators
USRE28225E (en) * 1968-10-09 1974-11-05 Photobleachable dye compositions
US3914166A (en) 1968-11-06 1975-10-21 Bayer Ag Butyric acid derivatives as novel photosensitizers
GB1245079A (en) 1968-12-10 1971-09-02 Fuji Photo Film Co Ltd Spiro-indoline derivatives and their use in pressure-sensitive copying paper
US3553710A (en) 1969-03-14 1971-01-05 Edward C Lloyd Erasable trace recorder
US3840338A (en) 1969-04-11 1974-10-08 Oreal Light stabilized hair dye compositions
JPS4912180B1 (en) 1969-04-21 1974-03-22
US3647467A (en) 1969-05-22 1972-03-07 Du Pont Hexaarylbiimidazole-heterocyclic compound compositions
US3697280A (en) 1969-05-22 1972-10-10 Du Pont Hexaarylbiimidazole-selected aromatic hydrocarbon compositions
US3617288A (en) 1969-09-12 1971-11-02 Minnesota Mining & Mfg Propenone sensitizers for the photolysis of organic halogen compounds
US3668188A (en) 1969-11-03 1972-06-06 Monsanto Co Thermally stable polyester fibers having improved dyeability and dye lightfastness
US3660542A (en) 1969-12-11 1972-05-02 Takeda Chemical Industries Ltd Alkylbenzoylcarbinol phosphate esters
CA930103A (en) 1970-03-16 1973-07-17 Dominion Textile Limited Printing and dyeing process for blended fibre fabrics
US3695879A (en) 1970-04-20 1972-10-03 Ibm Hologram life extension
US3669925A (en) 1970-04-28 1972-06-13 Monsanto Co Thermally stable dyeable polyesters having improved dyed lightfastness
US3689565A (en) 1970-05-04 1972-09-05 Horst Hoffmann {60 -methylolbenzoin ethers
US3873500A (en) 1970-06-16 1975-03-25 Agency Ind Science Techn Photosensitive polymers
US3652275A (en) 1970-07-09 1972-03-28 Du Pont HEXAARYLBIIMIDAZOLE BIS (p-DIALKYL-AMINOPHENYL-{60 ,{62 -UNSATURATED) KETONE COMPOSITIONS
GB1325220A (en) 1970-10-07 1973-08-01 Fuji Photo Film Co Ltd Colour-forming composition
NL7113828A (en) 1970-10-15 1972-04-18
US3678044A (en) 1970-10-22 1972-07-18 Chevron Res Substituted flavanones
JPS4926584B1 (en) 1970-11-26 1974-07-10
US3705043A (en) 1970-12-07 1972-12-05 Dick Co Ab Infrared absorptive jet printing ink composition
US3671251A (en) 1970-12-10 1972-06-20 Eastman Kodak Co Sensitized pyrylium photobleachable dye in gelatin
US3707371A (en) 1970-12-14 1972-12-26 Xerox Corp Photosensitive element comprising a polymer matrix including styrene,auramine o,and a proxide and the use thereof in volume recording
JPS509178B1 (en) 1970-12-28 1975-04-10
US3676690A (en) 1971-01-04 1972-07-11 Westinghouse Learning Corp Reflected light document reading head
JPS5121345B1 (en) 1971-01-19 1976-07-01
US3671096A (en) 1971-02-03 1972-06-20 Us Navy Erasable holographic recording
US3887450A (en) 1971-02-04 1975-06-03 Dynachem Corp Photopolymerizable compositions containing polymeric binding agents
US3694241A (en) 1971-04-19 1972-09-26 Grace W R & Co Method for chemically printing
US3901779A (en) 1971-05-13 1975-08-26 Dow Chemical Co Vinyl ester resin and process for curing same with ionizing radiation in the presence of amines
US3737628A (en) 1971-06-11 1973-06-05 Automatic Corp Automatically programmed test grading and scoring method and system
BE787339A (en) 1971-09-14 1973-02-09 Agfa Gevaert Nv PHOTOGRAPHIC REGISTRATION AND REPRODUCTION OF INFORMATION
GB1408265A (en) 1971-10-18 1975-10-01 Ici Ltd Photopolymerisable composition
US4004998A (en) 1971-11-18 1977-01-25 Sun Chemical Corporation Photopolymerizable compounds and compositions comprising the product of the reaction of a hydroxy-containing ester and a monocarboxy-substituted benzophenone
US3926641A (en) 1971-11-18 1975-12-16 Sun Chemical Corp Photopolymerizable compositions comprising polycarboxysubstituted benzophenone reaction products
US3765896A (en) 1971-11-22 1973-10-16 Eastman Kodak Co Photographic element containing a light sensitive photobleachant and a colored stable 2-amino-aryl-7-oxyl-3-oxide-2-imidazoline free radical
US3729313A (en) 1971-12-06 1973-04-24 Minnesota Mining & Mfg Novel photosensitive systems comprising diaryliodonium compounds and their use
US3801329A (en) 1971-12-17 1974-04-02 Union Carbide Corp Radiation curable coating compositions
USRE28789E (en) * 1972-01-25 1976-04-27 E. I. Du Pont De Nemours And Company Photopolymerizable compositions containing cyclic cis-α-dicarbonyl compounds and selected sensitizers
US3928264A (en) 1972-02-11 1975-12-23 Monsanto Co Polymeric ultraviolet light stabilizers prepared from phenol-formaldehyde condensates
US3800439A (en) 1972-05-04 1974-04-02 Scan Tron Corp Test scoring apparatus
US3844790A (en) 1972-06-02 1974-10-29 Du Pont Photopolymerizable compositions with improved resistance to oxygen inhibition
FR2189417B1 (en) 1972-06-23 1978-06-30 Sandoz Sa
JPS5034966B2 (en) 1972-07-24 1975-11-12
US3914165A (en) 1972-09-18 1975-10-21 Desoto Inc Radiation curable non-gelled michael addition reaction products
US4012256A (en) 1972-09-25 1977-03-15 Keuffel & Esser Company Photo-imaging utilizing alkali-activated photopolymerizable compositions
US4056665A (en) 1972-10-26 1977-11-01 Owens-Illinois, Inc. Composition and process
US3933682A (en) 1973-01-31 1976-01-20 Sun Chemical Corporation Photopolymerization co-initiator systems
JPS5148516B2 (en) 1973-02-07 1976-12-21
US3915824A (en) 1973-03-30 1975-10-28 Scm Corp Uv and laser curing of the polymerizable binder
US3876496A (en) 1973-05-14 1975-04-08 Ernesto B Lozano Method and means for protecting documents
US4251622A (en) 1973-05-25 1981-02-17 Nippon Paint Co., Ltd. Photo-sensitive composition for dry formation of image
FR2235907A1 (en) 1973-07-06 1975-01-31 Union Carbide Corp Aryl diakoxy methyl ketone prepn. - from alkyl nitrite, aryl methyl ketone and alkanol, used as photo-sensitisers in polymer hardening
JPS5041536A (en) 1973-08-03 1975-04-16
US4067892A (en) 1973-08-23 1978-01-10 Beecham Group Limited Substituted (4-carboxyphenoxy) phenyl alkane compounds
US4039332A (en) 1973-09-20 1977-08-02 Agfa-Gevaert N.V. Stabilization of photosensitive recording material
GB1469641A (en) 1973-09-20 1977-04-06 Agfa Gevaert Stabilization of photosensitive recording material
US4022674A (en) 1973-10-11 1977-05-10 Sun Chemical Corporation Photopolymerizable compounds and compositions comprising the product of the reaction of a monomeric ester and a polycarboxy-substituted benzophenone
US3960685A (en) 1973-11-12 1976-06-01 Sumitomo Chemical Company, Limited Photosensitive resin composition containing pullulan or esters thereof
US3978132A (en) 1973-12-06 1976-08-31 Sandoz, Inc. Acyl benzyl ethers
US3919323A (en) 1974-08-08 1975-11-11 Sandoz Ag Acyl substituted dibenzylethers
GB1494191A (en) 1973-12-17 1977-12-07 Lilly Industries Ltd Preparation of alpha-acyloxy aldehydes and ketones
US3984248A (en) 1974-02-19 1976-10-05 Eastman Kodak Company Photographic polymeric film supports containing photobleachable o-nitroarylidene dyes
US3988154A (en) 1974-02-19 1976-10-26 Eastman Kodak Company Photographic supports and elements utilizing photobleachable omicron-nitroarylidene dyes
US4058400A (en) 1974-05-02 1977-11-15 General Electric Company Cationically polymerizable compositions containing group VIa onium salts
US4043819A (en) 1974-06-11 1977-08-23 Ciba-Geigy Ag Photo-polymerizable material for the preparation of stable polymeric images and process for making them by photopolymerization in a matrix
US4017652A (en) 1974-10-23 1977-04-12 Ppg Industries, Inc. Photocatalyst system and ultraviolet light curable coating compositions containing the same
US4181807A (en) 1974-11-30 1980-01-01 Ciba-Geigy Corporation Polymerizable esters derived from a glycidyl ether of a phenolic unsaturated ketone
US4179577A (en) 1974-11-30 1979-12-18 Ciba-Geigy Corporation Polymerisable esters derived from a phenolic unsaturated ketone
GB1489419A (en) 1974-11-30 1977-10-19 Ciba Geigy Ag Polymerisable esters
DE2500520A1 (en) 1975-01-08 1976-07-15 Schickedanz Willi METHOD OF MAKING COLOR COPIES
US4024324A (en) 1975-07-17 1977-05-17 Uop Inc. Novel polyolefin composition of matter
GB1525159A (en) 1975-10-27 1978-09-20 Fuji Photo Film Co Ltd Desensitization of colour developer
JPS5265425A (en) 1975-11-24 1977-05-30 Minnesota Mining & Mfg Image forming composition
JPS5274406A (en) 1975-12-05 1977-06-22 Dainippon Toryo Kk Ink for ink jet recording
US4126412A (en) 1975-12-29 1978-11-21 Monsanto Company Method for stabilizing brightened modacrylic fibers
JPS5299776A (en) 1976-02-18 1977-08-22 Hitachi Ltd Radiation sensitive high polymeric material
US4105572A (en) 1976-03-31 1978-08-08 E. I. Du Pont De Nemours And Company Ferromagnetic toner containing water-soluble or water-solubilizable resin(s)
US4144156A (en) 1976-04-14 1979-03-13 Basf Aktiengesellschaft Manufacture of unsymmetric monoacetals of aromatic 1,2-diketones employable as photoiniatiators
DE2714978A1 (en) 1976-04-15 1977-10-27 Sandoz Ag COLORING PROCESS
JPS5928323B2 (en) 1976-08-12 1984-07-12 富士写真フイルム株式会社 Photopolymerizable composition
US4048034A (en) 1976-08-27 1977-09-13 Uop Inc. Photopolymerization using an alpha-aminoacetophenone
JPS5994B2 (en) 1976-09-14 1984-01-05 富士写真フイルム株式会社 photosensitive composition
US4100047A (en) 1976-10-12 1978-07-11 Mobil Oil Corporation Ultraviolet curable aqueous coatings
US4054719A (en) 1976-11-23 1977-10-18 American Cyanamid Company Phenacyl ester photosensitizers for radiation-curable coatings
JPS5928326B2 (en) 1976-12-02 1984-07-12 富士写真フイルム株式会社 Photopolymerizable composition
CH603767A5 (en) 1976-12-27 1978-08-31 Sandoz Ag Spray dried basic dyes
JPS6026122B2 (en) 1977-01-20 1985-06-21 富士写真フイルム株式会社 Photopolymerizable composition
DE2708188C2 (en) 1977-02-25 1979-02-08 Bayer Ag, 5090 Leverkusen Stabilization of anionic indole dyes
US4141807A (en) 1977-03-01 1979-02-27 Stauffer Chemical Company Photopolymerizable composition stabilized with nitrogen-containing aromatic compounds
US4190671A (en) 1977-03-17 1980-02-26 Biorex Laboratories Limited Chalcone derivatives
DE2722264C2 (en) 1977-05-17 1984-06-28 Merck Patent Gmbh, 6100 Darmstadt Use of substituted oxyalkylphenones as photosensitizers
US4114028A (en) 1977-05-26 1978-09-12 Sealectro Corporation Optical punched card reader
US4111699A (en) 1977-06-06 1978-09-05 Eastman Kodak Company O-nitro-o-azaarylidene photobleachable dyes and photographic elements utilizing them
US4110112A (en) 1977-06-23 1978-08-29 Neste Oy Photosensitive material containing 2,3-di(2,3-diiodopropoxy)-propyl cellulose and uses thereof
US4250096A (en) 1977-10-14 1981-02-10 Ciba-Geigy Corporation 3- and 4-Azidophthalic acid derivatives
JPS5462987A (en) 1977-10-28 1979-05-21 Fuji Photo Film Co Ltd Stabilizing method for organic basic substance to light
JPS5469580A (en) 1977-11-15 1979-06-04 Fuji Photo Film Co Ltd Stabilizing method for organic basic substance to light
JPS5472780A (en) 1977-11-22 1979-06-11 Fuji Photo Film Co Ltd Stabilizing method for organic basic substance to light
JPS5474728A (en) 1977-11-28 1979-06-15 Fuji Photo Film Co Ltd Photosensitive composition
JPS5928328B2 (en) 1977-11-29 1984-07-12 富士写真フイルム株式会社 Photopolymerizable composition
JPS5482385A (en) 1977-12-14 1979-06-30 Fuji Photo Film Co Ltd Stabilizing method for organic basic substance to light
JPS5482234A (en) 1977-12-14 1979-06-30 Fuji Photo Film Co Ltd Photostabilizing method for organic base material
JPS5482386A (en) 1977-12-15 1979-06-30 Fuji Photo Film Co Ltd Stabilizing method for organic basic substance to light
US4391867A (en) 1977-12-16 1983-07-05 E. I. Du Pont De Nemours & Co. Polyvinyl butyral ink formulation
US4318791A (en) 1977-12-22 1982-03-09 Ciba-Geigy Corporation Use of aromatic-aliphatic ketones as photo sensitizers
JPS6054197B2 (en) 1978-01-05 1985-11-29 富士写真フイルム株式会社 color developing ink
US4245018A (en) 1978-01-30 1981-01-13 Fuji Photo Film Co., Ltd. Method for stabilizing organic substrate materials including photographic dye images to light and a color diffusion transfer material
US4345011A (en) 1978-01-30 1982-08-17 Eastman Kodak Company Color imaging devices and color filter arrays using photo-bleachable dyes
EP0003884A3 (en) 1978-02-23 1979-09-19 Imperial Chemical Industries Plc Alpha-beta unsaturated ketone derivatives useful as herbicides
CH623447B (en) 1978-03-06 Sandoz Ag PROCESS FOR COLORING ACETALIZED PVC / PVA TEXTILES WITH DISPERSION DYES.
FR2420522A1 (en) 1978-03-20 1979-10-19 Unicler ACID (M-BENZOYL-PHENOXY) -2 PROPIONIC DERIVATIVES AND THEIR APPLICATIONS AS MEDICINAL PRODUCTS
US4199420A (en) 1978-04-06 1980-04-22 Stauffer Chemical Company Alkoxymethylbenzophenones as photoinitiators for photopolymerizable compositions and process based thereon
JPS54136581A (en) 1978-04-14 1979-10-23 Fuji Photo Film Co Ltd Stabilizing method for organic basic substance to light
JPS54136582A (en) 1978-04-17 1979-10-23 Fuji Photo Film Co Ltd Stabilizing method for organic basic substance to light
US4162162A (en) 1978-05-08 1979-07-24 E. I. Du Pont De Nemours And Company Derivatives of aryl ketones and p-dialkyl-aminoarylaldehydes as visible sensitizers of photopolymerizable compositions
JPS54152091A (en) 1978-05-22 1979-11-29 Fuji Photo Film Co Ltd Photopolymerizable composition
GB2025942A (en) 1978-05-31 1980-01-30 Sori Soc Rech Ind Phenoxyalkylcarboxylic acids
EP0007468B1 (en) 1978-07-13 1982-04-07 Ciba-Geigy Ag Compositions photodurcissables
JPS6053300B2 (en) 1978-08-29 1985-11-25 富士写真フイルム株式会社 Photosensitive resin composition
DE2839129C2 (en) 1978-09-08 1982-06-03 Chemische Fabrik Stockhausen GmbH, 4150 Krefeld Process for improving the lightfastness of leathers dyed in the usual way
DE2842862A1 (en) 1978-10-02 1980-04-10 Boehringer Mannheim Gmbh METHOD FOR DETERMINING ION, POLAR AND / OR LIPOPHILE SUBSTANCES IN LIQUIDS
JPS5550001A (en) 1978-10-06 1980-04-11 Fuji Photo Film Co Ltd Photo-polymerizable composition
JPS5577742A (en) 1978-12-08 1980-06-11 Fuji Photo Film Co Ltd Photosensitive composition
US4300123A (en) 1979-01-02 1981-11-10 Westinghouse Electric Corp. Optical reading system
US4270130A (en) 1979-01-08 1981-05-26 Eastman Kodak Company Thermal deformation record device with bleachable dye
DE2902293A1 (en) 1979-01-22 1980-07-31 Henkel Kgaa COATING MATERIAL FOR THE BACK OF PAPER TO BE GLUED
JPS55102538A (en) 1979-01-30 1980-08-05 Kawasaki Kasei Chem Ltd Preparation of p-n-alkyl benzoate
CH640361A5 (en) 1979-02-01 1983-12-30 Landis & Gyr Ag Device for thermal clear machine readable optical markers.
CA1160880A (en) 1979-02-02 1984-01-24 Keith E. Whitmore Imaging with nonplanar support elements
US4197080A (en) 1979-02-14 1980-04-08 Eastman Kodak Company Radiation-cleavable nondiffusible compounds and photographic elements and processes employing them
US4258367A (en) 1979-03-29 1981-03-24 Whittaker Corporation Light sensitive jet inks
JPS55133032A (en) 1979-04-03 1980-10-16 Ricoh Co Ltd Photosensitive composition
JPS55152750A (en) 1979-05-17 1980-11-28 Fuji Photo Film Co Ltd Stabilization of organic substrate substance against light
US4289844A (en) 1979-06-18 1981-09-15 Eastman Kodak Company Photopolymerizable compositions featuring novel co-initiators
US4426153A (en) 1979-06-21 1984-01-17 Ibm Corporation Apparatus for the reduction of image intensity variations in a continuously variable reducing copier
JPS566236A (en) 1979-06-28 1981-01-22 Fuji Photo Film Co Ltd Photosensitive material and pattern forming method using it
US4288631A (en) 1979-09-05 1981-09-08 General Electric Company UV Stabilizers, coating compositions and composite structures obtained therefrom
US4256493A (en) 1979-10-04 1981-03-17 Dai Nippon Tokyo Co., Ltd. Jet ink composition
US4349617A (en) 1979-10-23 1982-09-14 Fuji Photo Film Co., Ltd. Function separated type electrophotographic light-sensitive members and process for production thereof
JPS5677189A (en) 1979-11-30 1981-06-25 Fuji Photo Film Co Ltd Recording material
US4336323A (en) 1979-12-07 1982-06-22 Minnesota Mining And Manufacturing Company Decolorizable imaging system
US4373020A (en) 1979-12-07 1983-02-08 Minnesota Mining And Manufacturing Company Decolorizable imaging system
US4370401A (en) 1979-12-07 1983-01-25 Minnesota Mining And Manufacturing Company Light sensitive, thermally developable imaging system
US4460676A (en) 1980-02-21 1984-07-17 Fabel Warren M Non-impact single and multi-ply printing method and apparatus
US4373017A (en) 1980-03-05 1983-02-08 Konishiroku Photo Industry Co., Ltd. Photosensitive compound and photosensitive material containing it
DE3008411A1 (en) 1980-03-05 1981-09-10 Merck Patent Gmbh, 6100 Darmstadt NEW AROMATIC-ALIPHATIC KETONES, THEIR USE AS PHOTOINITIATORS AND PHOTOPOLYMERIZABLE SYSTEMS CONTAINING SUCH KETONES
US4276211A (en) 1980-03-10 1981-06-30 Troy Chemical Corporation Stabilization composition for coating composition
DE3010148A1 (en) 1980-03-15 1981-09-24 Merck Patent Gmbh, 6100 Darmstadt NEW MIXTURES BASED ON AROMATIC-ALIPHATIC KETONES, THEIR USE AS PHOTOINITIATORS AND PHOTOPOLYMERIZABLE SYSTEMS CONTAINING SUCH MIXTURES
US4351893A (en) 1980-12-31 1982-09-28 E. I. Du Pont De Nemours And Company Derivatives of aryl ketones as visible sensitizers of photopolymerizable compositions
US4268667A (en) 1980-04-21 1981-05-19 E. I. Du Pont De Nemours And Company Derivatives of aryl ketones based on 9,10-dihydro-9,10-ethanoanthracene and p-dialkyl-aminoaryl aldehydes as visible sensitizers for photopolymerizable compositions
EP0040177B1 (en) 1980-05-13 1983-07-20 Ciba-Geigy Ag Process for the preparation of benzene or naphthalene alkenyl carboxylic acid derivatives
EP0041043B1 (en) 1980-05-13 1983-11-09 Ciba-Geigy Ag Process for the preparation of derivatives of alkenyl benzene or alkenyl naphthalene
US4343891A (en) 1980-05-23 1982-08-10 Minnesota Mining And Manufacturing Company Fixing of tetra (hydrocarbyl) borate salt imaging systems
US4302606A (en) 1980-05-23 1981-11-24 Gaf Corporation 2-Hydroxy,alkoxy,methylolbenzophenone intermediate compounds for the manufacture of improved copolymerizable ultraviolet light absorber compounds
US4307182A (en) 1980-05-23 1981-12-22 Minnesota Mining And Manufacturing Company Imaging systems with tetra(aliphatic) borate salts
JPS56167139A (en) 1980-05-27 1981-12-22 Daikin Ind Ltd Sensitive material
JPS575771A (en) 1980-06-13 1982-01-12 Fuji Photo Film Co Ltd Formation of colored image by ink jetting method
JPS5720734A (en) 1980-07-15 1982-02-03 Fuji Photo Film Co Ltd Heat developing photosensitive material
HU181733B (en) 1980-08-07 1983-11-28 Chinoin Gyogyszer Es Vegyeszet Process for preparing sorbents containing cyclodextrin on cellulose base
US4416961A (en) 1980-09-11 1983-11-22 Eastman Kodak Company Color imaging devices and color filter arrays using photo-bleachable dyes
JPS5774372A (en) 1980-10-27 1982-05-10 Seiko Epson Corp Fluid ink for printer
JPS5774193A (en) * 1980-10-28 1982-05-10 Fuji Photo Film Co Ltd Ink jet recording picture forming method
DE3041153A1 (en) 1980-10-31 1982-06-16 Bayer Ag, 5090 Leverkusen METHOD FOR IMPROVING THE LIGHT FASTNESS OF POLYAMIDE COLORS
US4369283A (en) 1981-03-06 1983-01-18 E. I. Du Pont De Nemours & Company High solids can coating composition containing epoxy, acrylic and aminoplast resins
US4401470A (en) 1981-03-30 1983-08-30 Mobil Oil Corporation Intaglio printing ink and method of employing the same
US4372582A (en) 1981-03-30 1983-02-08 Minnesota Mining And Manufacturing Company Stabilizer for electron doner-acceptor carbonless copying systems
US4383859A (en) 1981-05-18 1983-05-17 International Business Machines Corporation Ink jet inks and method of making
US4350753A (en) 1981-06-15 1982-09-21 Polychrome Corporation Positive acting composition yielding pre-development high visibility image after radiation exposure comprising radiation sensitive diazo oxide and haloalkyl-s-triazine with novolak and dyestuff
JPS57207065A (en) 1981-06-17 1982-12-18 Seiko Epson Corp Ink jet recorder
DE3126433A1 (en) 1981-07-04 1983-01-13 Merck Patent Gmbh, 6100 Darmstadt Novel mixtures based on substituted dialkoxyacetophenones, their use as photoinitiators, and photopolymerisable systems containing such mixtures
US4508570A (en) 1981-10-21 1985-04-02 Ricoh Company, Ltd. Aqueous ink for ink-jet printing
JPS5872139A (en) 1981-10-26 1983-04-30 Tokyo Ohka Kogyo Co Ltd Photosensitive material
US4822714A (en) 1981-11-12 1989-04-18 The Mead Corporation Transfer imaging system
US4399209A (en) 1981-11-12 1983-08-16 The Mead Corporation Transfer imaging system
US4425424A (en) 1982-04-08 1984-01-10 Eastman Kodak Company Dye-forming compositions
US4495041A (en) 1982-04-15 1985-01-22 Mobil Oil Corporation Photochemical process using shape-selective photoassisted heterogenous catalyst compositions
JPS5936174A (en) 1982-08-23 1984-02-28 Ricoh Co Ltd Water-based ink for ink jet recording
US5135940A (en) 1982-09-23 1992-08-04 Merck Frosst Canada, Inc. Leukotriene antagonists
EP0108037B1 (en) 1982-10-01 1989-06-07 Ciba-Geigy Ag Propiophenone derivatives as photoinitiators in the photopolymerization
US4447521A (en) 1982-10-25 1984-05-08 Minnesota Mining And Manufacturing Company Fixing of tetra(hydrocarbyl)borate salt imaging systems
US4450227A (en) 1982-10-25 1984-05-22 Minnesota Mining And Manufacturing Company Dispersed imaging systems with tetra (hydrocarbyl) borate salts
JPS5980475A (en) 1982-10-29 1984-05-09 Ricoh Co Ltd Aqueous ink composition
US5108874A (en) 1982-11-01 1992-04-28 Microsi, Inc. Composite useful in photolithography
JPH0718087B2 (en) 1982-12-07 1995-03-01 コモンウエルス・サイエンテイフィック・アンド・インダストリアル・リサーチ・オーガニゼーション Method of protecting wool, dyed wool, silk, nylon or a blend thereof from light deterioration and wool protected from light degradation, dyed wool, silk, nylon or a blend thereof
US4523924A (en) 1982-12-20 1985-06-18 Ciba-Geigy Corporation Process for the preparation of stable aqueous solutions of water-soluble reactive dyes by membrane separation
JPS59133235A (en) 1983-01-21 1984-07-31 Kanebo Ltd Zeolite particle-containing polymer and its production
GB2136590B (en) 1983-03-15 1986-01-02 Minnesota Mining & Mfg Dye-bleach materials and process
US4510392A (en) 1983-04-08 1985-04-09 E. I. Du Pont De Nemours And Company Autoradiogram marking process
DE3415033C2 (en) 1983-04-20 1986-04-03 Hitachi Chemical Co., Ltd. 4'-Azidobenzal-2-methoxyacetophenone, process for its preparation and photosensitive composition containing it
US4567171A (en) 1983-04-21 1986-01-28 Ciba-Geigy Corporation Stable, concentrated, liquid dispersions of anionic dyestuffs
GB8311252D0 (en) 1983-04-26 1983-06-02 Ciba Geigy Ag Photocrosslinking process
US4853395A (en) 1983-04-29 1989-08-01 Merrell Dow Pharmaceuticals Inc. Certain 3-carboxylate or 3-carbamyl-5-acyl-2-(1H)-pyridinones having cardiotonic properties
FI81916C (en) 1983-05-09 1990-12-10 Vickers Plc FOER STRAOLNING KAENSLIG SKIVA.
DE3417782A1 (en) 1983-05-23 1984-11-29 Sandoz-Patent-GmbH, 7850 Lörrach COLORING TOOLS
JPS59219270A (en) 1983-05-30 1984-12-10 Wako Pure Chem Ind Ltd Method and reagent for stabilization of tetrazolium salt with cyclodextrin
US4475999A (en) 1983-06-06 1984-10-09 Stauffer Chemical Company Sensitization of glyoxylate photoinitiators
US4595745A (en) 1983-06-27 1986-06-17 Ube Industries, Ltd. Organic solvent-soluble photosensitive polyamide resin
DE3326640A1 (en) 1983-07-23 1985-01-31 Basf Ag, 6700 Ludwigshafen METHOD FOR IMPROVING THE LIGHT FASTNESS OF COLORING WITH ACID OR METAL COMPLEX DYES ON POLYAMIDE
US4707161A (en) 1983-07-23 1987-11-17 Basf Aktiengesellschaft Lightfastness of dyeings obtained with acid dyes or metal complex dyes on polyamides: treatment with copper hydroxamates
US4702996A (en) 1983-09-28 1987-10-27 General Electric Company Method of enhancing the contrast of images and materials therefor
JPS6083029A (en) 1983-10-13 1985-05-11 Mitsui Toatsu Chem Inc Optical recording medium
US4707425A (en) 1983-11-18 1987-11-17 Mitsui Toatsu Chemicals, Incorporated Optical recording method and media therefor
GB8333853D0 (en) 1983-12-20 1984-02-01 Ciba Geigy Ag Production of images
US4571377A (en) 1984-01-23 1986-02-18 Battelle Memorial Institute Photopolymerizable composition containing a photosensitive donor and photoinitiating acceptor
JPH0697339B2 (en) 1984-02-02 1994-11-30 富士写真フイルム株式会社 Photopolymerizable composition
GB8402937D0 (en) 1984-02-03 1984-03-07 Ciba Geigy Ag Production of images
US4701402A (en) 1984-02-13 1987-10-20 Minnesota Mining And Manufacturing Company Oxidative imaging
US4620875A (en) 1984-04-10 1986-11-04 Ricoh Company, Ltd. Aqueous ink composition
US4534838A (en) 1984-04-16 1985-08-13 Loctite Corporation Siloxane polyphotoinitiators of the substituted acetophenone type
US4745042A (en) 1984-04-19 1988-05-17 Matsushita Electric Industrial Co., Ltd. Water-soluble photopolymer and method of forming pattern by use of the same
JPS60264279A (en) 1984-06-13 1985-12-27 Fuji Photo Film Co Ltd Recording material
JPS612771A (en) 1984-06-14 1986-01-08 Taoka Chem Co Ltd Ink composition
US4763966A (en) 1984-07-16 1988-08-16 Fuji Photo Film Co., Ltd. Infrared absorbent
JPH0755582B2 (en) 1984-07-27 1995-06-14 株式会社リコー Two-color thermosensitive recording label
US4632895A (en) 1984-08-23 1986-12-30 Minnesota Mining And Manufacturing Company Diffusion or sublimation transfer imaging system
US4663275A (en) 1984-09-04 1987-05-05 General Electric Company Photolithographic method and combination including barrier layer
US4617380A (en) 1984-09-11 1986-10-14 Ciba-Geigy Corporation Process for the preparation of concentrated stable liquid dye solutions of CI Direct Yellow 11 utilizing an extended surface silica filter aid during a desalting procedure
US4524122A (en) 1984-09-26 1985-06-18 Eastman Kodak Company Substituted 4-nitrophenylazo-1-naphthol cyan dyes having improved light stability
US4632891A (en) 1984-10-04 1986-12-30 Ciba-Geigy Corporation Process for the production of images
JPS61101572A (en) 1984-10-23 1986-05-20 Ricoh Co Ltd Water based ink
JPS61101568A (en) 1984-10-23 1986-05-20 Ricoh Co Ltd Water based ink
JPS61101574A (en) 1984-10-23 1986-05-20 Ricoh Co Ltd Water based ink
US4790565A (en) 1984-10-24 1988-12-13 Steed Signs Pty., Limited Game
US4565769A (en) 1984-11-21 1986-01-21 E. I. Du Pont De Nemours And Company Polymeric sensitizers for photopolymer composition
IE56890B1 (en) 1984-12-30 1992-01-15 Scully Richard L Photosensitive composition for direct positive colour photograph
US4672041A (en) 1985-02-22 1987-06-09 Beckman Instruments, Inc. Method and stable diazo reagent for detecting bilirubin
JPH0613653B2 (en) 1985-02-26 1994-02-23 株式会社リコー Aqueous ink composition
JPH0710620B2 (en) 1985-03-28 1995-02-08 株式会社リコー Two-color thermosensitive recording label
EP0196901A3 (en) 1985-03-29 1988-10-19 Taoka Chemical Co., Ltd Copper phthalocyanine compound and aqueous ink composition comprising the same
DE3512179A1 (en) 1985-04-03 1986-12-04 Merck Patent Gmbh, 6100 Darmstadt PHOTO INITIATORS FOR PHOTOPOLYMERIZATION IN AQUEOUS SYSTEMS
JPS61238874A (en) 1985-04-17 1986-10-24 Ricoh Co Ltd Water-based ink composition
JPH0621930B2 (en) 1985-05-01 1994-03-23 富士写真フイルム株式会社 Photoresponsive material
DE3563462D1 (en) 1985-05-09 1988-07-28 Ciba Geigy Ag Process for the photochemical stabilisation of undyed and dyed polyamide fibrous material and its mixtures
US4668533A (en) 1985-05-10 1987-05-26 E. I. Du Pont De Nemours And Company Ink jet printing of printed circuit boards
US4720450A (en) 1985-06-03 1988-01-19 Polaroid Corporation Thermal imaging method
CA1270089A (en) 1985-08-01 1990-06-05 Masami Kawabata Photopolymerizable composition
US4786586A (en) 1985-08-06 1988-11-22 Morton Thiokol, Inc. Radiation curable coating for photographic laminate
US4622286A (en) 1985-09-16 1986-11-11 E. I. Du Pont De Nemours And Company Photoimaging composition containing admixture of leuco dye and 2,4,5-triphenylimidazolyl dimer
JPS62102241A (en) 1985-10-30 1987-05-12 Tokyo Ohka Kogyo Co Ltd Photosensitive composition
US4772541A (en) 1985-11-20 1988-09-20 The Mead Corporation Photohardenable compositions containing a dye borate complex and photosensitive materials employing the same
JPS62174741A (en) 1986-01-24 1987-07-31 Fuji Photo Film Co Ltd Method for stabilizing organic base body material to light
DE3609320A1 (en) 1986-03-20 1987-09-24 Basf Ag PHOTOCHROME SYSTEM, LAYERS MADE THEREOF AND THEIR USE
EP0239376A3 (en) 1986-03-27 1988-05-11 Gec-Marconi Limited Contrast enhanced photolithography
US4755450A (en) 1986-04-22 1988-07-05 Minnesota Mining And Manufacturing Company Spectral sensitizing dyes in photopolymerizable systems
US4775386A (en) 1986-05-05 1988-10-04 Ciba-Geigy Corporation Process for photochemical stabilization of undyed and dyed polyamide fibre material and blends thereof with other fibres: copper complex and light stabilizer treatment
US4895880A (en) 1986-05-06 1990-01-23 The Mead Corporation Photocurable compositions containing photobleachable ionic dye complexes
US4849320A (en) 1986-05-10 1989-07-18 Ciba-Geigy Corporation Method of forming images
US4772291A (en) 1986-05-12 1988-09-20 Japan Liquid Crystal Co., Ltd. Process for the preparation of densely colored pellet for synthetic resins
US4925770A (en) 1986-05-20 1990-05-15 Director General Of Agency Of Industrial Science And Technology Contrast-enhancing agent for photolithography
IT207808Z2 (en) 1986-06-03 1988-02-15 Promosint & Contractors Srl QUICK DISCHARGE VALVE PROVIDED WITH PISTON SHUTTER WITH INTERNAL GUIDE
US4988561A (en) 1986-06-17 1991-01-29 J. M. Huber Corporation Paper coated with synthetic alkali metal aluminosilicates
US4721531A (en) 1986-07-08 1988-01-26 Plasticolors, Inc. Pigment dispersions exhibiting improved compatibility in polyurethane systems
US4724021A (en) 1986-07-23 1988-02-09 E. I. Du Pont De Nemours And Company Method for making porous bottom-layer dielectric composite structure
US5002993A (en) 1986-07-25 1991-03-26 Microsi, Inc. Contrast enhancement layer compositions, alkylnitrones, and use
DE3625355A1 (en) 1986-07-26 1988-02-04 Basf Ag BENZOPHENONETHER ESTER AND A METHOD FOR IMPROVING THE LIGHT-FASTNESS OF POLYESTER TESTS USING BENZOPHENONETHER ESTERS
US5190565A (en) 1986-07-28 1993-03-02 Allied-Signal Inc. Sulfonated 2-(2'-hydroxyaryl)-2H-benzotriazoles and/or sulfonated aromatic formaldehyde condensates and their use to improve stain resistance and dye lightfasteness
US4874391A (en) 1986-07-29 1989-10-17 Ciba-Geigy Corporation Process for photochemical stabilization of polyamide fiber material and mixtures thereof with other fibers: water-soluble copper complex dye and light-stabilizer
US4752341A (en) 1986-08-11 1988-06-21 Pq Corporation Pigment system for paper
US4933265A (en) 1986-09-01 1990-06-12 Fuji Photo Film Co., Ltd. Process for forming direct positive color image
JPH0610727B2 (en) 1986-09-17 1994-02-09 富士写真フイルム株式会社 Photoresponsive material
US4727824A (en) 1986-09-22 1988-03-01 Personal Pet Products Partnership Absorbent composition, method of making and using same
DE3632530A1 (en) 1986-09-25 1988-04-07 Basf Ag METHOD FOR PRODUCING ALPHA BETA UNSATURATED KETONES
US4800149A (en) 1986-10-10 1989-01-24 The Mead Corporation Photohardenable compositions containing a dye borate complex and photosensitive materials employing the same
DE3637717A1 (en) 1986-11-05 1988-05-11 Hoechst Ag LIGHT-SENSITIVE MIXTURE, THIS RECORDING MATERIAL AND METHOD FOR PRODUCING POSITIVE OR NEGATIVE RELIEF COPIES USING THIS MATERIAL
GB8628807D0 (en) 1986-12-02 1987-01-07 Ecc Int Ltd Clay composition
US4952478A (en) 1986-12-02 1990-08-28 Canon Kabushiki Kaisha Transfer recording medium comprising a layer changing its transferability when provided with light and heat
US4902725A (en) 1986-12-22 1990-02-20 General Electric Company Photocurable acrylic coating composition
JPS63190815A (en) 1987-02-04 1988-08-08 Hoou Kk Powdery hair dye composition
US4838938A (en) 1987-02-16 1989-06-13 Canon Kabushiki Kaisha Recording liquid and recording method by use thereof
US4926190A (en) 1987-02-18 1990-05-15 Ciba-Geigy Corporation Ink jet recording process using certain benzotriazole derivatives as light stabilizers
US4831068A (en) 1987-02-27 1989-05-16 Ciba-Geigy Corporation Process for improving the photochemical stability of dyeings on polyester fibre materials
DE3738567A1 (en) 1987-03-12 1988-09-22 Merck Patent Gmbh COREACTIVE PHOTOINITIATORS
US5028792A (en) 1987-03-19 1991-07-02 Xytronyx, Inc. System for the visualization of exposure to ultraviolet radiation
US4766050A (en) 1987-03-27 1988-08-23 The Mead Corporation Imaging system with integral cover sheet
US4853398A (en) 1987-04-13 1989-08-01 Eli Lilly And Company Leukotriene antagonists and use thereas
US4952680A (en) 1987-04-23 1990-08-28 Basf Aktiengesellschaft Preparation of stable solutions of azo dyes of m-phenylenediamine by reaction with formic acid
DE3720850A1 (en) 1987-06-24 1989-01-05 Basf Ag METHOD FOR PRODUCING UNSATURED AND SATURATED KETONES
JPS649272A (en) 1987-07-01 1989-01-12 Nippon Kayaku Kk Non-flying granular dye
JPH07120036B2 (en) 1987-07-06 1995-12-20 富士写真フイルム株式会社 Photopolymerizable composition
WO1989001186A1 (en) 1987-07-28 1989-02-09 Nippon Kayaku Kabushiki Kaisha Photosensitive resin composition and color filter
US5196295A (en) 1987-07-31 1993-03-23 Microsi, Inc. Spin castable mixtures useful for making deep-UV contrast enhancement layers
DE3826046A1 (en) 1987-08-17 1989-03-02 Asea Brown Boveri METHOD FOR PRODUCING METAL LAYERS
US4803008A (en) 1987-09-23 1989-02-07 The Drackett Company Cleaning composition containing a colorant stabilized against fading
DE3732980A1 (en) 1987-09-30 1989-04-13 Basf Ag METHOD FOR IMPROVING THE LIGHT-FASTNESS OF POLYESTER TESTS USING BENZOPHENONETHER ESTERS AND NEW BENZOPHENONETHER ESTERS
US5025036A (en) 1987-10-01 1991-06-18 Hoffmann-La Roche Inc. Catechol carboxylic acids
US4950304A (en) 1987-10-02 1990-08-21 Ciba-Geigy Corporation Process for quenching or suppressing the fluorescence of substrates treated with fluorescent whitening agents
JP2604177B2 (en) 1987-10-05 1997-04-30 富士写真フイルム株式会社 Direct positive color image forming method
JPH01106053A (en) 1987-10-20 1989-04-24 Fuji Photo Film Co Ltd Direct positive color image forming method
US4853037A (en) 1987-10-30 1989-08-01 Hewlett-Packard Company Low glycol inks for plain paper printing
US4968596A (en) 1987-11-02 1990-11-06 Fuji Photo Film Co. Ltd. Method for forming a direct positive image
US4954380A (en) 1987-11-27 1990-09-04 Canon Kabushiki Kaisha Optical recording medium and process for production thereof
US5037726A (en) 1987-12-08 1991-08-06 Fuji Photo Film Co., Ltd. Method for forming a direct positive image from a material comprising a nucleation accelerator
US4812517A (en) 1987-12-28 1989-03-14 E. I. Du Pont De Nemours And Company Dispersants resistant to color change
US4813970A (en) 1988-02-10 1989-03-21 Crompton & Knowles Corporation Method for improving the lightfasteness of nylon dyeings using copper sulfonates
US5001330A (en) 1988-03-02 1991-03-19 National Computer Systems, Inc. Optically scanned document with fail-safe marking
JPH01223446A (en) 1988-03-03 1989-09-06 Fuji Photo Film Co Ltd Photoimage forming material and photoimage forming system using same
DE3807381A1 (en) 1988-03-07 1989-09-21 Hoechst Ag HETEROCYCLIC COMPOUNDS CONTAINING 4,6-BIS-TRICHLOROMETHYL-S-TRIAZIN-2-YL-GROUPS, PROCESS FOR THE PREPARATION THEREOF AND LIGHT-SENSITIVE MIXTURE CONTAINING THIS COMPOUND
US5106723A (en) 1988-03-10 1992-04-21 Microsi, Inc. Contrast enhancement layer compositions, alkylnitrones, and use
US5279652A (en) 1988-03-24 1994-01-18 Rainer Kaufmann Use of solids as antiblocking additives for marker liquids
JPH0735640B2 (en) 1988-04-18 1995-04-19 富士写真フイルム株式会社 Method for producing dyed polysaccharide
US4902787A (en) 1988-04-21 1990-02-20 North Carolina State University Method for producing lightfast disperse dyestuffs containing a build-in photostabilizer [molecule] compound
US4812139A (en) 1988-05-04 1989-03-14 Burlington Industries, Inc. Dyed polyester fabrics with improved lightfastness
EP0345212A1 (en) 1988-05-04 1989-12-06 Ciba-Geigy Ag Process to prevent yellowing of polyamide fibres finished with stain-proofing agents
DE3815622A1 (en) 1988-05-07 1989-11-16 Merck Patent Gmbh PHOTOINITIATOR DISPERSIONS
US5262276A (en) 1988-05-11 1993-11-16 Fuji Photo Film Co., Ltd. Light-sensitive compositions
DE3918105A1 (en) 1988-06-02 1989-12-14 Toyo Boseki PHOTOPOLYMERIZABLE COMPOSITION
US5003142A (en) 1988-06-03 1991-03-26 E. I. Du Pont De Nemours And Company Easy opening microwave pouch
ES2050274T3 (en) 1988-06-14 1994-05-16 Ciba Geigy Ag PROCEDURE FOR THE PHOTOCHEMICAL STABILIZATION OF UNDYED AND DYED POLYPROPYLENE FIBERS.
DE3921600C1 (en) 1988-07-02 1990-01-04 Asea Brown Boveri Ag, 6800 Mannheim, De
US4917956A (en) 1988-07-11 1990-04-17 Uop Method of preparing cyclodextrin-coated surfaces
US4886774A (en) 1988-08-09 1989-12-12 Alfred Doi Ultraviolet protective overcoat for application to heat sensitive record materials
DE3826947A1 (en) 1988-08-09 1990-02-22 Merck Patent Gmbh THIOXANTHON DERIVATIVES, THEIR USE AS PHOTOINITIATORS, PHOTOPOLYMERIZABLE BINDING SYSTEMS AND METHOD FOR THE PRODUCTION OF A RADIATION-COATED COATING
JPH0820734B2 (en) 1988-08-11 1996-03-04 富士写真フイルム株式会社 Photosensitive composition and photopolymerizable composition using the same
US5334455A (en) 1988-08-12 1994-08-02 Stamicarbon B.V. Free-radical curable compositions
US5153166A (en) 1988-08-18 1992-10-06 Trustees Of At Biochem Chromatographic stationary supports
US5202213A (en) 1988-08-31 1993-04-13 Canon Kabushiki Kaisha Developer with surface treated silicic acid for developing electrostatic image
US5030248A (en) 1988-08-31 1991-07-09 Sandoz Ltd. Dyeing method
US5187045A (en) 1988-09-07 1993-02-16 Minnesota Mining And Manufacturing Company Halomethyl-1,3,5-triazines containing a sensitizer moiety
US5034526A (en) 1988-09-07 1991-07-23 Minnesota Mining And Manufacturing Company Halomethyl-1,3,5-triazines containing a sensitizer moiety
DE3830914A1 (en) 1988-09-10 1990-03-22 Hoechst Ag PHOTOPOLYMERIZABLE MIXTURE, RECORDING MATERIAL MADE THEREOF, AND METHOD FOR PRODUCING COPIES
US5098793A (en) 1988-09-29 1992-03-24 Uop Cyclodextrin films on solid substrates
DE3833437A1 (en) 1988-10-01 1990-04-05 Basf Ag RADIATION SENSITIVE MIXTURES AND THEIR USE
DE3833438A1 (en) 1988-10-01 1990-04-05 Basf Ag RADIATION SENSITIVE MIXTURES AND THEIR USE
JP2547626B2 (en) 1988-10-07 1996-10-23 富士写真フイルム株式会社 Method for producing monomer
JPH02100048A (en) 1988-10-07 1990-04-12 Fuji Photo Film Co Ltd Silver halide color photographic sensitive material
CH676168A5 (en) 1988-10-10 1990-12-14 Asea Brown Boveri
US5026427A (en) 1988-10-12 1991-06-25 E. I. Dupont De Nemours And Company Process for making pigmented ink jet inks
EP0368327B1 (en) 1988-11-11 1995-02-15 Fuji Photo Film Co., Ltd. Light-sensitive composition
US5045435A (en) 1988-11-25 1991-09-03 Armstrong World Industries, Inc. Water-borne, alkali-developable, photoresist coating compositions and their preparation
CH677846A5 (en) 1988-12-01 1991-06-28 Asea Brown Boveri
US5185236A (en) 1988-12-09 1993-02-09 Fuji Photo Film Co., Ltd. Full color recording materials and a method of forming colored images
JP2604453B2 (en) 1988-12-14 1997-04-30 積水化学工業株式会社 Acrylic adhesive tape
EP0373573B1 (en) 1988-12-14 1994-06-22 Ciba-Geigy Ag Recording material for ink jet printing
US5098477A (en) 1988-12-14 1992-03-24 Ciba-Geigy Corporation Inks, particularly for ink printing
US5096781A (en) 1988-12-19 1992-03-17 Ciba-Geigy Corporation Water-soluble compounds as light stabilizers
US4954416A (en) 1988-12-21 1990-09-04 Minnesota Mining And Manufacturing Company Tethered sulfonium salt photoinitiators for free radical polymerization
US5030243A (en) 1989-01-05 1991-07-09 Ciba-Geigy Corporation Process for the photochemical stabilization of undyed and dyeable artificial leather with a sterically hindered amine
JPH02289856A (en) 1989-01-18 1990-11-29 Fuji Photo Film Co Ltd Photosensitive and thermosensitive composition and recording material and image forming method using the same
US4985345A (en) 1989-02-02 1991-01-15 Ricoh Company, Ltd. Recording material
CH677292A5 (en) 1989-02-27 1991-04-30 Asea Brown Boveri
US4902299A (en) 1989-02-28 1990-02-20 E. I. Du Pont De Nemours And Company Nylon fabrics with cupric salt and oxanilide for improved dye-lightfastness
CH677557A5 (en) 1989-03-29 1991-05-31 Asea Brown Boveri
US5278590A (en) 1989-04-26 1994-01-11 Flex Products, Inc. Transparent optically variable device
US4933948A (en) 1989-05-30 1990-06-12 Eastman Kodak Company Dye laser solutions
JPH0323984A (en) 1989-06-20 1991-01-31 Seiji Kawashima Printed matter
US5023129A (en) 1989-07-06 1991-06-11 E. I. Du Pont De Nemours And Company Element as a receptor for nonimpact printing
US5328504A (en) 1989-08-09 1994-07-12 Seiko Epson Corporation Image recording ink
DE59008830D1 (en) 1989-08-25 1995-05-11 Ciba Geigy Ag Light stabilized inks.
EP0425429B1 (en) 1989-08-25 1995-02-22 Ciba-Geigy Ag Light stabilised inks
EP0417040A1 (en) 1989-09-06 1991-03-13 Ciba-Geigy Ag Dyeing process for wool
DE3930516A1 (en) 1989-09-13 1991-03-21 Riedel De Haen Ag BENZOPHENONETHER ESTER, METHOD FOR THE PRODUCTION THEREOF, AND THEIR USE FOR IMPROVING THE LIGHT STABILITY OF POLYESTER TESTS
US5098806A (en) 1989-09-22 1992-03-24 Board Of Regents, The University Of Texas System Photosensitive elements based on polymeric matrices of diacetylenes and spiropyrans and the use thereof as coatings to prevent document reproduction
US5176984A (en) 1989-10-25 1993-01-05 The Mead Corporation Photohardenable compositions containing a borate salt
US5028262A (en) 1989-11-02 1991-07-02 Eastman Kodak Company Stabilization of ink compositions
JPH03155554A (en) 1989-11-14 1991-07-03 Japan Synthetic Rubber Co Ltd Radiation sensitive resin composition
JP2830211B2 (en) 1989-11-17 1998-12-02 日本曹達株式会社 Method for producing β-hydroxyketones
US5026425A (en) 1989-12-11 1991-06-25 Hewlett-Packard Company Waterfastness of DB-168 ink by cation substitution
DE3941295A1 (en) 1989-12-14 1991-06-20 Basf Ag METHOD FOR COLORING POLYAMIDE SUBSTRATES
US4968813A (en) 1989-12-22 1990-11-06 Eastman Kodak Company Derivatives of 4H-thiopyran-1,1-dioxides
US5069681A (en) 1990-01-03 1991-12-03 Ciba-Geigy Corporation Process for the photochemical stabilization of dyed polyamide fibres with foamed aqueous composition of copper organic complexes
US5202212A (en) 1990-01-16 1993-04-13 Mitsui Toatsu Chemicals, Inc. Toner composition for electrophotography
DE59105066D1 (en) 1990-01-19 1995-05-11 Ciba Geigy Ag Stabilization of dyeings on polyamide fibers.
NL9000268A (en) 1990-02-05 1991-09-02 Oce Nederland Bv Doped tin oxide powder, a process for its preparation, and its use in electrically conductive or anti-static coatings.
RU1772118C (en) 1990-02-19 1992-10-30 В. П. Чуев, М. М. Асимов, О. Д. Каменева, В. М. Никитченко, С. Н. Коваленко и А. Н. Рубинов Method for synthesis of water-soluble form of coumarine derivative
JPH03257463A (en) 1990-03-07 1991-11-15 Nippon Paint Co Ltd Toner and production thereof
JP2632066B2 (en) 1990-04-06 1997-07-16 富士写真フイルム株式会社 Positive image forming method
US5085698A (en) 1990-04-11 1992-02-04 E. I. Du Pont De Nemours And Company Aqueous pigmented inks for ink jet printers
US5221334A (en) 1990-04-11 1993-06-22 E. I. Du Pont De Nemours And Company Aqueous pigmented inks for ink jet printers
US5272201A (en) 1990-04-11 1993-12-21 E. I. Du Pont De Nemours And Company Amine-containing block polymers for pigmented ink jet inks
US5053320A (en) 1990-04-16 1991-10-01 Richard L. Scully Direct dry negative color printing process and composition
US5384186A (en) 1990-05-09 1995-01-24 The Proctor & Gamble Company Non-destructive carriers for cyclodextrin complexes
US5139687A (en) 1990-05-09 1992-08-18 The Proctor & Gamble Company Non-destructive carriers for cyclodextrin complexes
US5261953A (en) 1990-05-10 1993-11-16 Ciba-Geigy Corporation Inks
DE59104652D1 (en) 1990-05-10 1995-03-30 Ciba Geigy Ag Inks.
US5108505A (en) 1990-05-16 1992-04-28 Hewlett-Packard Company Waterfast inks via cyclodextrin inclusion complex
EP0485614B1 (en) 1990-05-21 1997-08-13 Toppan Printing Co., Ltd. Cyclodextrin derivative
CH680099A5 (en) 1990-05-22 1992-06-15 Asea Brown Boveri
DE59108599D1 (en) 1990-05-31 1997-04-17 Ciba Geigy Stabilization of dyeings on polyamide fibers
US5153104A (en) 1990-06-18 1992-10-06 Minnesota Mining And Manufacturing Company Thermally developable light-sensitive layers containing photobleachable sensitizers
US5153105A (en) 1990-06-18 1992-10-06 Minnesota Mining And Manufacturing Company Thermally developable light sensitive imageable layers containing photobleachable dyes
US5275646A (en) 1990-06-27 1994-01-04 Domino Printing Sciences Plc Ink composition
DE59106971D1 (en) 1990-07-12 1996-01-11 Ciba Geigy Ag Process for the photochemical and thermal stabilization of polyamide fiber materials.
US5187049A (en) 1990-07-16 1993-02-16 Minnesota Mining And Manufacturing Company Photosensitive thermally developed compositions
JP3244288B2 (en) 1990-07-23 2002-01-07 昭和電工株式会社 Near infrared decolorable recording material
US5089374A (en) 1990-08-20 1992-02-18 Eastman Kodak Company Novel bis-onium salts and the use thereof as photoinitiators
JP3019381B2 (en) 1990-08-31 2000-03-13 ソニー株式会社 Optical recording medium
US5208136A (en) 1990-09-06 1993-05-04 The United States Of America As Represented By The Secretary Of The Air Force Fabricating of integrated optics
US5224197A (en) 1990-09-06 1993-06-29 The United States Of America As Represented By The Secretary Of The Air Force Integrated optics using photodarkened polystyrene
JP2642776B2 (en) 1990-09-10 1997-08-20 三田工業株式会社 Information recording medium and information recording method
EP0475905B1 (en) 1990-09-13 1998-01-14 Ciba SC Holding AG Photochemical stabilisation of wool
JPH04153079A (en) 1990-10-18 1992-05-26 Digital Sutoriimu:Kk Erasable and rewritable paper, printing ink and printing apparatus and erasing apparatus using them
US5296556A (en) 1990-10-30 1994-03-22 Union Camp Corporation Three-component curable resin compositions
JP2550775B2 (en) 1990-11-22 1996-11-06 富士ゼロックス株式会社 Carrier for magnetic brush developer
JPH04197657A (en) * 1990-11-29 1992-07-17 Toshiba Corp Recording device
SE468054B (en) 1990-12-03 1992-10-26 Mo Och Domsjoe Ab PAPER AND PROCEDURES FOR PREPARING PAPER
EP0490819B1 (en) 1990-12-13 1995-09-13 Ciba-Geigy Ag Aqueous dispersion of slightly water soluble U.V. absorbers
US5254429A (en) 1990-12-14 1993-10-19 Anocoil Photopolymerizable coating composition and lithographic printing plate produced therefrom
JPH06504628A (en) 1990-12-20 1994-05-26 エクソン・ケミカル・パテンツ・インク UV/EB curable butyl copolymers for lithography and anti-corrosion coating applications
US5190710A (en) 1991-02-22 1993-03-02 The B. F. Goodrich Company Method for imparting improved discoloration resistance to articles
US5144964A (en) 1991-03-14 1992-09-08 Philip Morris Incorporated Smoking compositions containing a flavorant-release additive
FR2675347B1 (en) 1991-04-17 1994-09-02 Tabacs & Allumettes Ind PAPER CIGARETTE INCORPORATING A SMOKE MODIFYING AGENT.
EP0511166A1 (en) 1991-04-26 1992-10-28 Ciba-Geigy Ag Process for photochemical and thermic stabilization of polyamide fibre material with a fiberaffinitive copper complex and an oxalicacid diarylamide
US5302195A (en) 1991-05-22 1994-04-12 Xerox Corporation Ink compositions containing cyclodextrins
US5141797A (en) 1991-06-06 1992-08-25 E. I. Du Pont De Nemours And Company Ink jet paper having crosslinked binder
DE4118899C1 (en) 1991-06-08 1992-10-22 Degussa Ag, 6000 Frankfurt, De
US5160372A (en) 1991-06-13 1992-11-03 E. I. Du Pont De Nemours And Company Aqueous ink jet inks containing ester diol and amide diol cosolvents
US5141556A (en) 1991-06-13 1992-08-25 E. I. Du Pont De Nemours And Company Penetrants for aqueous ink jet inks
US5169438A (en) 1991-06-13 1992-12-08 E. I. Du Pont De Nemours And Company Aqueous ink jet inks containing cycloaliphatic diol pluggage inhibitors
US5133803A (en) 1991-07-29 1992-07-28 Hewlett-Packard Company High molecular weight colloids which control bleed
DE4126461C2 (en) 1991-08-09 1994-09-29 Rainer Hoppe Dye-loaded inorganic molecular sieve, process for its preparation and its use
EP0557501A1 (en) * 1991-09-16 1993-09-01 Eastman Kodak Company Optical recording with near-infrared dyes to effect bleaching
US5209814A (en) 1991-09-30 1993-05-11 E. I. Du Pont De Nemours And Company Method for diffusion patterning
US5205861A (en) 1991-10-09 1993-04-27 E. I. Du Pont De Nemours And Company Aqueous ink jet inks containing alkylene oxide condensates of certain nitrogen heterocyclic compounds as cosolvents
US5198330A (en) 1991-10-11 1993-03-30 Eastman Kodak Company Photographic element with optical brighteners having reduced migration
US5202209A (en) 1991-10-25 1993-04-13 Xerox Corporation Toner and developer compositions with surface additives
US5455143A (en) 1991-10-25 1995-10-03 Minnesota Mining And Manufacturing Company Aminoketone sensitizers for aqueous soluble photopolymer compositions
US5415976A (en) 1991-10-25 1995-05-16 Minnesota Mining And Manufacturing Company Aminoketone sensitizers for photopolymer compositions
SE9103140L (en) 1991-10-28 1993-04-29 Eka Nobel Ab HYDROPHOBERATED PAPER
US5180425A (en) 1991-11-05 1993-01-19 E. I. Du Pont De Nemours And Company Aqueous ink jet inks containing polyol/alkylene oxide condensates as cosolvents
US5224987A (en) 1991-11-12 1993-07-06 E. I. Du Pont De Nemours And Company Penetrants for aqueous ink jet inks
EP0542286B1 (en) 1991-11-14 1996-07-17 Showa Denko Kabushikikaisha Decolorizable toner
DE4142956C2 (en) 1991-12-24 1996-08-14 Du Pont Deutschland Bleachable antihalation system for photographic materials
US5271765A (en) 1992-02-03 1993-12-21 E. I. Du Pont De Nemours And Company Aqueous cationic dye-based ink jet inks
US5219703A (en) 1992-02-10 1993-06-15 Eastman Kodak Company Laser-induced thermal dye transfer with bleachable near-infrared absorbing sensitizers
US5298030A (en) 1992-02-21 1994-03-29 Ciba-Geigy Corporation Process for the photochemical and thermal stabilization of undyed and dyed or printed polyester fiber materials
US5193854A (en) 1992-02-28 1993-03-16 Babn Technologies Inc. Tamper-resistant article and method of authenticating the same
US5226957A (en) 1992-03-17 1993-07-13 Hewlett-Packard Company Solubilization of water-insoluble dyes via microemulsions for bleedless, non-threading, high print quality inks for thermal ink-jet printers
US5178420A (en) 1992-03-19 1993-01-12 Shelby Meredith E Reusable facsimile transmittal sheet and method
US5401562A (en) 1992-03-27 1995-03-28 Fuji Photo Film Co., Ltd. Paper material for photosensitive materials and method of producing the same
US5344483A (en) 1992-03-30 1994-09-06 Porelon, Inc. High-density, low-viscosity ink for use in ink jet printers
US5173112A (en) 1992-04-03 1992-12-22 E. I. Du Pont De Nemours And Company Nitrogen-containing organic cosolvents for aqueous ink jet inks
US5169436A (en) 1992-05-13 1992-12-08 E. I. Du Pont De Nemours And Company Sulfur-containing penetrants for ink jet inks
US5324349A (en) 1992-05-20 1994-06-28 Seiko Epson Corporation Ink compositions for ink jet printing
US5503664A (en) 1992-05-20 1996-04-02 Seiko Epson Corporation Ink compositions for ink jet printing
US5258274A (en) 1992-05-22 1993-11-02 Minnesota Mining And Manufacturing Company Thermal dye bleach construction sensitive to ultraviolet radiation
US5300403A (en) 1992-06-18 1994-04-05 International Business Machines Corporation Line width control in a radiation sensitive polyimide
US5372917A (en) 1992-06-30 1994-12-13 Kanzaki Paper Manufacturing Co., Ltd. Recording material
US5296275A (en) 1992-07-01 1994-03-22 Xytronyx, Inc. Phototranschromic ink
US5270078A (en) 1992-08-14 1993-12-14 E. I. Du Pont De Nemours And Company Method for preparing high resolution wash-off images
US5310778A (en) 1992-08-25 1994-05-10 E. I. Du Pont De Nemours And Company Process for preparing ink jet inks having improved properties
EP0585679A1 (en) 1992-09-01 1994-03-09 Konica Corporation Method for forming a photographic color image
JP3151547B2 (en) 1992-09-07 2001-04-03 パイロットインキ株式会社 Aqueous ink composition for writing instruments
JP2602404B2 (en) 1992-09-08 1997-04-23 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー Aqueous ink composition
JP3176444B2 (en) 1992-10-01 2001-06-18 株式会社リコー Aqueous ink and recording method using the same
US5338822A (en) 1992-10-02 1994-08-16 Cargill, Incorporated Melt-stable lactide polymer composition and process for manufacture thereof
DE4234222A1 (en) 1992-10-10 1994-04-14 Cassella Ag Water-soluble sulfur dyes, their preparation and use
DE4236143A1 (en) 1992-10-26 1994-04-28 Bayer Ag Substrate with visible information protected against copying - prepd. with combination of adjacent fields of emitting and remitting colourants of almost same nuance when viewed without fluorescence
US5509957A (en) 1992-11-09 1996-04-23 Ciba-Geigy Corporation Ink compositions
US5489503A (en) 1992-12-03 1996-02-06 Ciba-Geigy Corp. UV absorbers
US5427415A (en) 1992-12-09 1995-06-27 Wallace Computer Services, Inc. Heat sensitive system and use thereof
US5372387A (en) 1992-12-15 1994-12-13 Wajda; Tadeusz Security device for document protection
US5250109A (en) 1992-12-22 1993-10-05 E. I. Du Pont De Nemours And Company Derivatives of polyoxyalkyleneamines as cosolvents for aqueous ink jet inks
US5268027A (en) 1992-12-22 1993-12-07 E. I. Du Pont De Nemours And Company Alkylpolyol ethers as cosolvents for ink jet inks
US5292556A (en) 1992-12-22 1994-03-08 E. I. Du Pont De Nemours And Company Method for preparing negative-working wash-off relief images
US5426164A (en) 1992-12-24 1995-06-20 The Dow Chemical Company Photodefinable polymers containing perfluorocyclobutane groups
US5302197A (en) 1992-12-30 1994-04-12 E. I. Du Pont De Nemours And Company Ink jet inks
GB9301451D0 (en) 1993-01-26 1993-03-17 Allied Colloids Ltd Production of filled paper
JPH06248193A (en) 1993-02-25 1994-09-06 Ensuiko Sugar Refining Co Ltd Crocetin-containing pigment
JPH06248194A (en) 1993-02-25 1994-09-06 Ensuiko Sugar Refining Co Ltd Coloring matter containing quercetin
US5286288A (en) 1993-03-11 1994-02-15 Videojet Systems International, Inc. Hot melt inks for continuous jet printing
US5429628A (en) 1993-03-31 1995-07-04 The Procter & Gamble Company Articles containing small particle size cyclodextrin for odor control
JPH06287493A (en) 1993-04-07 1994-10-11 Canon Inc Ink and recording device using the same
US5330860A (en) 1993-04-26 1994-07-19 E. I. Du Pont De Nemours And Company Membrane and electrode structure
DE4321376A1 (en) 1993-06-26 1995-01-05 Hoechst Ag Aqueous fine dispersion of an organophilic layered silicate
US5432274A (en) 1993-07-28 1995-07-11 National Research Council Of Canada Redox dye and method of preparation thereof using 2-hydroxypropyl-β-cyclodextrin and 1,1'-dimethylferrocene
US5401303A (en) 1994-04-26 1995-03-28 E. I. Du Pont De Nemours And Company Aqueous inks having improved halo characteristics
US5474691A (en) 1994-07-26 1995-12-12 The Procter & Gamble Company Dryer-added fabric treatment article of manufacture containing antioxidant and sunscreen compounds for sun fade protection of fabrics
US5476540A (en) 1994-10-05 1995-12-19 Hewlett Packard Corporation Gel-forming inks for use in the alleviation of bleed

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ES2115568T1 (en) 1998-07-01
DE807294T1 (en) 1998-07-16
ZA9510849B (en) 1996-07-02
AR000521A1 (en) 1997-07-10
US5865471A (en) 1999-02-02
TW297890B (en) 1997-02-11
JPH10511197A (en) 1998-10-27
AU4289296A (en) 1996-07-10
EP0807294A1 (en) 1997-11-19
BR9510279A (en) 1998-01-06
CO4440459A1 (en) 1997-05-07
WO1996019776A1 (en) 1996-06-27
MX9704498A (en) 1997-10-31
CA2207607A1 (en) 1996-06-27

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