WO2002012621A1 - Process for the preparation of paper having a special appearance - Google Patents

Process for the preparation of paper having a special appearance Download PDF

Info

Publication number
WO2002012621A1
WO2002012621A1 PCT/IB2001/000999 IB0100999W WO0212621A1 WO 2002012621 A1 WO2002012621 A1 WO 2002012621A1 IB 0100999 W IB0100999 W IB 0100999W WO 0212621 A1 WO0212621 A1 WO 0212621A1
Authority
WO
WIPO (PCT)
Prior art keywords
paper
parts
composition
application
pearlescent
Prior art date
Application number
PCT/IB2001/000999
Other languages
French (fr)
Inventor
Christer Sundquist
Alec Stewart Tindal
Original Assignee
Clariant Finance (Bvi) Limited
Clariant International Ltd
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 Clariant Finance (Bvi) Limited, Clariant International Ltd filed Critical Clariant Finance (Bvi) Limited
Priority to AU2001262575A priority Critical patent/AU2001262575A1/en
Publication of WO2002012621A1 publication Critical patent/WO2002012621A1/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
    • D21H19/00—Coated paper; Coating material
    • D21H19/66—Coatings characterised by a special visual effect, e.g. patterned, textured
    • 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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/24—Addition to the formed paper during paper manufacture
    • D21H23/26—Addition to the formed paper during paper manufacture by selecting point of addition or moisture content of the paper
    • D21H23/28—Addition before the dryer section, e.g. at the wet end or press section
    • 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
    • D21H21/28—Colorants ; Pigments or opacifying agents
    • D21H21/285—Colorants ; Pigments or opacifying agents insoluble

Definitions

  • the invention relates to a new process for the preparation of paper with a variety of different pearlescent effect finishes and to the composition used for obtaining such finishes.
  • a further object of the invention is the size press composition used in this process having a viscosity of 1800 cPs ⁇ 50 cPs and comprising a polymeric binder, additives with dispersant, antistatic and lubricant effects, antifoaming agent, a synthetic thickener and a pearlescent pigment.
  • the pearlescent pigment can be any pigment known to give such an effect which is normally provoked by a mica component.
  • pigments sold by the company Merck in Darmstadt, Germany under the name IR1ODIN ® or by the company Maerl International in Haarlem, Holland under the name MAGNAPEARL ® are very suitable.
  • the synthetic thickener can be any thickener used in size process compositions. Examples are the products Printofix Thickener NCN from Clariant or LYOPRINT ® TCF of Ciba Specialty Chemicals.
  • the polymeric binder is of the type having a film forming temperature at around 7 degrees C.
  • An example is the product APPRETAN ® DM2 of the company Perstorp- Clariant which is a copolymer of vinylacetate and dibutylmaleate, stabilized with polyvinylalcohol.
  • composition as above defined can be used in the common size press of a paper machine and/or in a common on-line coating machine as i.e. a blade, air knife or rod coating.
  • the rollers For the application of the composition in a size press of a paper machine according to the invention, the rollers have to be kept as clean as possible in order to get a good runability and it was observed that the drying rollers after the size press should be coated with a fluorinated hydrocarbon resin (TEFLON ® ) in order to avoid adhesion.
  • TEFLON ® fluorinated hydrocarbon resin
  • An important feature of the process according to the invention is the observation of humidity conditions during application of the size press paste and it is advantageous to use a water mist distributor that gives a very fine water mist over the size press rollers.
  • the moisture content in the size-press should be preferably around 100%.
  • the composition can be applied to the paper on one or both sides. If the composition is applied on both side the coatweight need not be the same on both sides.
  • a preferred coatweight for the application of the composition according to the invention is 35 - 40 gm "2 .
  • the pearlescent effect can be varied and many different decorative effects can be produced, for example:
  • the size of the pearlescent particles can be changed to give a course or fine appearance.
  • the color of the pearlescent material can be, for example, silver, gold, blue, red or green
  • the color of the base paper can be varied along with the color of the pearlescence to produce an interesting and decorative range of papers, for example a silver pearlescence on a black paper or board, or a red pearlescence on a blue paper.
  • the combinations are almost without limit.
  • Pearlescent pigments can be mixed together to give two, three or more colors of pearlescence mixed together on the surface of the paper, for example, silver and red, or silver, red, green and blue.
  • the paste obtained in example 1 is applied on a freshly produced paper using size press rollers of the usual type which are kept clean by the application of a very fine water mist provided by a water mist distributor (the moisture content is 100%) at a speed of 200-230 m/min and Nip pressure of 40 kp.
  • a very fine water mist provided by a water mist distributor (the moisture content is 100%) at a speed of 200-230 m/min and Nip pressure of 40 kp.
  • the paper sheet covered by the size paste is lead over drying rollers with a coating of fluorinated hydrocarbon resin at a temperature of 70-75°C. Paper with good pearlescent effect is obtained.
  • the paste obtained in example 1 is applied on a freshly produced paper using an online coating machine (blade coater).
  • the paste is applied to the surface with a coatweight of 35-40 g/m "2 .
  • a paper with excellent pearlescent effect is obtained.

Abstract

A new process for the preparation of paper with a pearlescent finish. The process is characterized by the use of a special composition and by the application of this composition a) in a size press under humidity conditions of at least 90 % moisture content and using drying rollers with a coating of fluorinated hydrocarbon resin; and/or b) in an on-line coater application.

Description

PROCESS FOR THE PREPARATION OF PAPER HAVING A SPECIAL APPEARANCE
The invention relates to a new process for the preparation of paper with a variety of different pearlescent effect finishes and to the composition used for obtaining such finishes.
It is well known in the paper industry to prepare various kinds of sized paper by application of chemical compositions mainly consisting of aqueous binder dispersions or emulsions containing various additives depending on the result which one wants to obtain. For example it is usual to put dyes or pigments into the size press solution in order to obtain colored paper. It was difficult, however, to give the colored paper a pearlescent finish because the specific type of pigment which is used for obtaining such an effect, could not equally be distributed over the surface of the paper by the usual size press or on-line coater applications. In addition there would be several problems associated with producing this type of paper and further problems would occur in the subsequent processing of this paper.
It has been found that colored paper with a variety of excellent pearlescent finishes can be obtained, when the composition of the binder dispersion or emulsion is adequately chosen and when certain process parameters are carefully monitored.
It is, therefore, the object of the invention to provide a new process for the preparation of paper with a pearlescent finish. This process is characterized by the use of a special composition and by the application of this composition
a) in a size press under humidity conditions of at least 90% moisture content and using drying rollers with a coating of fluorinated hydrocarbon resin; and/or b) in an on-line coater application
A further object of the invention is the size press composition used in this process having a viscosity of 1800 cPs ± 50 cPs and comprising a polymeric binder, additives with dispersant, antistatic and lubricant effects, antifoaming agent, a synthetic thickener and a pearlescent pigment. The pearlescent pigment can be any pigment known to give such an effect which is normally provoked by a mica component. As an example, pigments sold by the company Merck in Darmstadt, Germany under the name IR1ODIN® or by the company Maerl International in Haarlem, Holland under the name MAGNAPEARL® are very suitable.
The synthetic thickener can be any thickener used in size process compositions. Examples are the products Printofix Thickener NCN from Clariant or LYOPRINT® TCF of Ciba Specialty Chemicals.
The antifoaming agent and the additives having a dispersant, antistatic and lubricant effect are well known chemical products normally used in binder dispersions or emulsions. To improve the runability of the paper sheet in the size-press, it is advantageous to use a dispersant of the quaternary ammonium type like Elfugin V of Clariant International Ltd.
The polymeric binder is of the type having a film forming temperature at around 7 degrees C. An example is the product APPRETAN® DM2 of the company Perstorp- Clariant which is a copolymer of vinylacetate and dibutylmaleate, stabilized with polyvinylalcohol.
The person skilled in the art of paper sizing will know how to make the choice of these components and how to combine these chemicals in order to obtain the prescribed viscosity of the paste which avoids the sedimentation of the pigment. If the viscosity is too high, the paper will slip at application of the composition, if the viscosity is too low, the binder will enter into the paper mass and the pigment will stay on the surface with the result that the paper has not the required finish.
The composition as above defined can be used in the common size press of a paper machine and/or in a common on-line coating machine as i.e. a blade, air knife or rod coating.
For the application of the composition in a size press of a paper machine according to the invention, the rollers have to be kept as clean as possible in order to get a good runability and it was observed that the drying rollers after the size press should be coated with a fluorinated hydrocarbon resin (TEFLON®) in order to avoid adhesion. An important feature of the process according to the invention is the observation of humidity conditions during application of the size press paste and it is advantageous to use a water mist distributor that gives a very fine water mist over the size press rollers. The moisture content in the size-press should be preferably around 100%.
For the application of the composition in a on-line coating machine according to the invention, it can be said that the composition can be applied to the paper on one or both sides. If the composition is applied on both side the coatweight need not be the same on both sides. A preferred coatweight for the application of the composition according to the invention is 35 - 40 gm"2.
When applying a size press composition according to the invention and observing the process conditions in accordance with the above described features, paper with an excellent pearlescent finish is obtained.
The pearlescent effect can be varied and many different decorative effects can be produced, for example:
- The size of the pearlescent particles can be changed to give a course or fine appearance.
The color of the pearlescent material can be, for example, silver, gold, blue, red or green
The effect becomes more distinct on a colored paper, the color of the base paper can be varied along with the color of the pearlescence to produce an interesting and decorative range of papers, for example a silver pearlescence on a black paper or board, or a red pearlescence on a blue paper. The combinations are almost without limit.
Pearlescent pigments can be mixed together to give two, three or more colors of pearlescence mixed together on the surface of the paper, for example, silver and red, or silver, red, green and blue.
The following examples illustrate the invention. EXAMPLE 1
Composition
Antifoaming Agent 15-30 parts
Dispersant 15-30 parts
Lubricant 10-25 parts
Pigment 20-200 parts
Binder 60-600 parts
Thickener 5-20 parts
Water To make i jp to K
EXAMPLE 2
Application Of The Composition in the Size-press
The paste obtained in example 1 is applied on a freshly produced paper using size press rollers of the usual type which are kept clean by the application of a very fine water mist provided by a water mist distributor (the moisture content is 100%) at a speed of 200-230 m/min and Nip pressure of 40 kp. After the size press rollers, the paper sheet covered by the size paste is lead over drying rollers with a coating of fluorinated hydrocarbon resin at a temperature of 70-75°C. Paper with good pearlescent effect is obtained.
EXAMPLE 3
Application Of The Composition in an on-line coating machine The paste obtained in example 1 is applied on a freshly produced paper using an online coating machine (blade coater). The paste is applied to the surface with a coatweight of 35-40 g/m"2. A paper with excellent pearlescent effect is obtained.

Claims

1. A process for the preparation of paper with a pearlescent finish characterized by the use of a composition having a viscosity of 1800 cPs ± 50 cPs, by the application of such composition in
a) in a size press under humidity conditions of at least 90% moisture content and using drying rollers with a coating of fluorinated hydrocarbon resin; and/or b) in an on-line coater application.
2. A composition for performing the process of claim 1 , comprising a polymeric binder, additives with dispersant, antistatic and lubricant effects, antifoaming agent, a synthetic thickener and a pearlescent pigment.
3. A composition according to claim 1 characterized in that 15-30 parts antifoaming agent, 15-30 parts dispersant, 10-25 parts lubricant, 20-200 parts pigment, 60- 600 parts binder, 5-20 parts thickener and up to 1000 parts water with the proviso that the composition consists of 1000 parts in total, is used.
PCT/IB2001/000999 2000-08-10 2001-06-07 Process for the preparation of paper having a special appearance WO2002012621A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001262575A AU2001262575A1 (en) 2000-08-10 2001-06-07 Process for the preparation of paper having a special appearance

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0019575A GB0019575D0 (en) 2000-08-10 2000-08-10 Process for the prepartion of paper having a special appearance
GB0019575.0 2000-08-10

Publications (1)

Publication Number Publication Date
WO2002012621A1 true WO2002012621A1 (en) 2002-02-14

Family

ID=9897291

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2001/000999 WO2002012621A1 (en) 2000-08-10 2001-06-07 Process for the preparation of paper having a special appearance

Country Status (3)

Country Link
AU (1) AU2001262575A1 (en)
GB (1) GB0019575D0 (en)
WO (1) WO2002012621A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1353009A2 (en) * 2002-04-12 2003-10-15 Gruppo Cordenons S.p.A. Glittering-reflecting sheet paper material and method for making the same
US6702922B2 (en) 2002-07-17 2004-03-09 Mw Custom Papers, Llc Papers for use in decorative laminates and methods of making the same
US8114482B2 (en) * 2004-03-30 2012-02-14 Coveright Surfaces Canada Inc. Coating composition, coated article and a method to manufacture the same
ITMI20130979A1 (en) * 2013-06-13 2014-12-14 Gruppo Cordenons Spa PAPER MATERIAL WITH HOLOGRAPHIC AND METAL PERLESCENT EFFECT AND RELATIVE PROCESS OF MANUFACTURE
ITUB20160512A1 (en) * 2016-02-01 2017-08-01 Gruppo Cordenons Spa PAPER MATERIAL WITH A HIGH SOLID METAL PERLESCENT EFFECT IN LIGHT AND ITS MANUFACTURING PROCEDURE

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4239822A (en) * 1977-09-26 1980-12-16 American Can Company Propylene/polystyrene composition and method for coating
US4400297A (en) * 1980-10-14 1983-08-23 Morca, Inc. Modified hydrated magnesium aluminosilicates and method of preparation
EP0120308A2 (en) * 1983-02-28 1984-10-03 HENKEL CORPORATION (a Delaware corp.) Formaldehyde-free insolubilizers for binders for paper coating compositions
JPS63120194A (en) * 1986-11-08 1988-05-24 住友化学工業株式会社 Paper coating composition
EP0428933A2 (en) * 1989-11-16 1991-05-29 MERCK PATENT GmbH Materials coated with plate like pigmets
US5266384A (en) * 1991-07-18 1993-11-30 Nevamar Corporation Aesthetic surface layer
US5327661A (en) * 1991-01-18 1994-07-12 Institute Of Paper Science And Technology, Inc. Method and apparatus for drying web
EP0695830A1 (en) * 1993-04-16 1996-02-07 Tokushu Paper Mfg. Co., Ltd Forgery-proof paper
US5811493A (en) * 1994-10-21 1998-09-22 Minnesota Mining And Manufacturing Company Paper-like film

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4239822A (en) * 1977-09-26 1980-12-16 American Can Company Propylene/polystyrene composition and method for coating
US4400297A (en) * 1980-10-14 1983-08-23 Morca, Inc. Modified hydrated magnesium aluminosilicates and method of preparation
EP0120308A2 (en) * 1983-02-28 1984-10-03 HENKEL CORPORATION (a Delaware corp.) Formaldehyde-free insolubilizers for binders for paper coating compositions
JPS63120194A (en) * 1986-11-08 1988-05-24 住友化学工業株式会社 Paper coating composition
EP0428933A2 (en) * 1989-11-16 1991-05-29 MERCK PATENT GmbH Materials coated with plate like pigmets
US5327661A (en) * 1991-01-18 1994-07-12 Institute Of Paper Science And Technology, Inc. Method and apparatus for drying web
US5266384A (en) * 1991-07-18 1993-11-30 Nevamar Corporation Aesthetic surface layer
EP0695830A1 (en) * 1993-04-16 1996-02-07 Tokushu Paper Mfg. Co., Ltd Forgery-proof paper
US5811493A (en) * 1994-10-21 1998-09-22 Minnesota Mining And Manufacturing Company Paper-like film

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 198826, Derwent World Patents Index; Class A14, AN 1988-180922, XP002173404 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1353009A2 (en) * 2002-04-12 2003-10-15 Gruppo Cordenons S.p.A. Glittering-reflecting sheet paper material and method for making the same
EP1353009A3 (en) * 2002-04-12 2004-08-18 Gruppo Cordenons S.p.A. Glittering-reflecting sheet paper material and method for making the same
US6702922B2 (en) 2002-07-17 2004-03-09 Mw Custom Papers, Llc Papers for use in decorative laminates and methods of making the same
US8114482B2 (en) * 2004-03-30 2012-02-14 Coveright Surfaces Canada Inc. Coating composition, coated article and a method to manufacture the same
ITMI20130979A1 (en) * 2013-06-13 2014-12-14 Gruppo Cordenons Spa PAPER MATERIAL WITH HOLOGRAPHIC AND METAL PERLESCENT EFFECT AND RELATIVE PROCESS OF MANUFACTURE
WO2014198780A1 (en) * 2013-06-13 2014-12-18 Gruppo Cordenons S.P.A. Paper material having holographic and pearlescent metallic effects and the manufacturing process thereof
ITUB20160512A1 (en) * 2016-02-01 2017-08-01 Gruppo Cordenons Spa PAPER MATERIAL WITH A HIGH SOLID METAL PERLESCENT EFFECT IN LIGHT AND ITS MANUFACTURING PROCEDURE
WO2017134071A1 (en) * 2016-02-01 2017-08-10 Gruppo Cordenons S.P.A. Pearlescent metallic effect paper material with high lightfastness and related manufacturing method

Also Published As

Publication number Publication date
AU2001262575A1 (en) 2002-02-18
GB0019575D0 (en) 2000-09-27

Similar Documents

Publication Publication Date Title
EP1794365B1 (en) Multi-layer coated products and curtain coating process for same
EP0117054A1 (en) Method and apparatus for coating paper and the like
DE4224351C2 (en) Process for producing a cast-coated paper
KR20010034525A (en) Paper coating lubricant
FI108305B (en) Procedure for lowering the permeability of water vapor in paper, cardboard and the like
US4102845A (en) Spread-coating compositions for paper comprising an aqueous dispersion of styrene/butadiene polymer and polyethylene oxide
US4997682A (en) Paper coating composition
US5972167A (en) Transfer roll coating color and a coated paper
WO2002012621A1 (en) Process for the preparation of paper having a special appearance
CN109072562B (en) Pearlescent metallic effect paper material with high light resistance and related manufacturing method
US3293067A (en) Production of coated paper
DE60312632T2 (en) Paper material with a look and feel like plastic, and a related method
US3711321A (en) Rapid drying polyvinyl alcohol color coating process
US20060231225A1 (en) Foil with iridescent appearance and method for the production thereof
DE19755724C1 (en) Matte cast-coated paper and process for its manufacture
US2776911A (en) Process of coating paper with gellable water soluble salt of cellulose sulfate and pigment and gelling said coating
US3494777A (en) Printing of washable colored wallpapers
US3298862A (en) Paper sizing process
KR920008778B1 (en) Method for paper with the luster of pearls
JP2649915B2 (en) Pattern coloring coated paper
CA2159130A1 (en) Improving the quality of coated paper
WO2023245223A1 (en) Grease-repelling paper
JP2579231B2 (en) Pearl pigment coated paper
US2398042A (en) Method of applying protective coatings
DE2100481A1 (en) Aqueous coating color

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU BR CA CN JP NO US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WA Withdrawal of international application
122 Ep: pct application non-entry in european phase