WO2010077837A3 - Planchettes containing inconstant pigment or dye for secure article - Google Patents

Planchettes containing inconstant pigment or dye for secure article Download PDF

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Publication number
WO2010077837A3
WO2010077837A3 PCT/US2009/067964 US2009067964W WO2010077837A3 WO 2010077837 A3 WO2010077837 A3 WO 2010077837A3 US 2009067964 W US2009067964 W US 2009067964W WO 2010077837 A3 WO2010077837 A3 WO 2010077837A3
Authority
WO
WIPO (PCT)
Prior art keywords
planchettes
inconstant
color
pigment
dye
Prior art date
Application number
PCT/US2009/067964
Other languages
French (fr)
Other versions
WO2010077837A2 (en
Inventor
Stephen Postle
Caspar Lee
Nicole Klir
Original Assignee
Sun Chemical Corporation
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sun Chemical Corporation filed Critical Sun Chemical Corporation
Publication of WO2010077837A2 publication Critical patent/WO2010077837A2/en
Publication of WO2010077837A3 publication Critical patent/WO2010077837A3/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
    • G07D7/12—Visible light, infrared or ultraviolet radiation

Abstract

The present invention describes planchettes incorporated into the substrate of secure articles, such as bank notes, passports and tax stamps. These planchettes may take various forms (such as fibers), regular shapes (such as circles), irregular shapes (such as polygons) or as threads or stripes running throughout the length of the document and are colored with an ultra color inconstant pigment or dye, or a non-color inconstant pigment or dye, or combination thereof. Ultra color inconstant pigments and dyes appear as markedly different colors under light sources with differing spectral distributions. The planchettes are coated with an ink containing a color inconstant pigment and function as a method of authenticating the document. When the light source that the article is viewed under is changed, the planchettes change color at the same time. The effect is striking and proves the document to be genuine. This allows for facile authentication without the need of complex or costly equipment. The bulk of the substrate may also be colored to match the appearance of the planchettes under one illuminant, so that they only become visible when the spectral characteristics of the light source are changed.
PCT/US2009/067964 2008-12-16 2009-12-15 Planchettes containing inconstant pigment or dye for secure article WO2010077837A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12292208P 2008-12-16 2008-12-16
US61/122,922 2008-12-16

Publications (2)

Publication Number Publication Date
WO2010077837A2 WO2010077837A2 (en) 2010-07-08
WO2010077837A3 true WO2010077837A3 (en) 2010-10-14

Family

ID=42224697

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/067964 WO2010077837A2 (en) 2008-12-16 2009-12-15 Planchettes containing inconstant pigment or dye for secure article

Country Status (1)

Country Link
WO (1) WO2010077837A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109972447A (en) * 2017-12-27 2019-07-05 Tcl集团股份有限公司 Coating paper and preparation method thereof

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2627822A2 (en) * 2010-10-13 2013-08-21 D.W. Spinks (Embossing) Limited A planchette for a security paper
GB2531584B (en) * 2014-10-23 2019-07-10 Portals De La Rue Ltd Improvements in security papers and documents
WO2019058392A1 (en) 2017-09-22 2019-03-28 Council Of Scientific & Industrial Research Shaped objects for use in security applications

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007041579A2 (en) * 2005-10-03 2007-04-12 Sun Chemical Corporation Security pigments and the process of making thereof
WO2007144657A2 (en) * 2006-06-15 2007-12-21 D. W. Spinks (Embossing) Limited Planchette for use in couterfeit protection

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA570965A (en) 1959-02-17 Dominion Rubber Company Reclaiming vulcanized rubber latex foam
GB1585533A (en) 1976-12-07 1981-03-04 Portals Ltd Security papers
JP2001159094A (en) 1999-11-25 2001-06-12 Toppan Printing Co Ltd Anti-falsification paper and securities using the same
GB2394696B (en) 2002-11-01 2004-09-29 Rue De Int Ltd Improvements in security papers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007041579A2 (en) * 2005-10-03 2007-04-12 Sun Chemical Corporation Security pigments and the process of making thereof
WO2007144657A2 (en) * 2006-06-15 2007-12-21 D. W. Spinks (Embossing) Limited Planchette for use in couterfeit protection

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109972447A (en) * 2017-12-27 2019-07-05 Tcl集团股份有限公司 Coating paper and preparation method thereof

Also Published As

Publication number Publication date
WO2010077837A2 (en) 2010-07-08

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