WO2007018723A2 - Coating composition for forming a glossy inkjet-receptive coating on a substrate - Google Patents

Coating composition for forming a glossy inkjet-receptive coating on a substrate Download PDF

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Publication number
WO2007018723A2
WO2007018723A2 PCT/US2006/022746 US2006022746W WO2007018723A2 WO 2007018723 A2 WO2007018723 A2 WO 2007018723A2 US 2006022746 W US2006022746 W US 2006022746W WO 2007018723 A2 WO2007018723 A2 WO 2007018723A2
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WIPO (PCT)
Prior art keywords
composition according
substrate
coating
composition
coating composition
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Ceased
Application number
PCT/US2006/022746
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French (fr)
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WO2007018723A3 (en
Inventor
David K. Hood
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ISP Investments LLC
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ISP Investments LLC
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Anticipated expiration legal-status Critical
Publication of WO2007018723A3 publication Critical patent/WO2007018723A3/en
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52—Macromolecular coatings
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING 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
    • C09D139/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Coating compositions based on derivatives of such polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/502—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording characterised by structural details, e.g. multilayer materials
    • B41M5/508—Supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52—Macromolecular coatings
    • B41M5/5218—Macromolecular coatings characterised by inorganic additives, e.g. pigments, clays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52—Macromolecular coatings
    • B41M5/5227—Macromolecular coatings characterised by organic non-macromolecular additives, e.g. UV-absorbers, plasticisers, surfactants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52—Macromolecular coatings
    • B41M5/5236—Macromolecular coatings characterised by the use of natural gums, of proteins, e.g. gelatins, or of macromolecular carbohydrates, e.g. cellulose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52—Macromolecular coatings
    • B41M5/5245—Macromolecular coatings characterised by the use of polymers containing cationic or anionic groups, e.g. mordants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52—Macromolecular coatings
    • B41M5/5254—Macromolecular coatings characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52—Macromolecular coatings
    • B41M5/5263—Macromolecular coatings characterised by the use of polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • B41M5/5281—Polyurethanes or polyureas
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica

Definitions

  • This invention relates to inkjet-receptive coating compositions, and, more particularly, to coating compositions of a cationic polymer and colloidal silica having a particle size in the nanometer range, which provide glossy, inkjet-receptive coatings on a substrate.
  • inkjet printing has begun to approach that of silver halide photography and these advances have carried inkjet printing to the point where a further advance now depends on the quality of inkjet papers.
  • An inkjet printed image on plain paper is generally inferior to a silver halide image on photographic paper, but it becomes difficult to distinguish between the two when the inkjet printing is performed on high-grade photo paper.
  • cast-coated paper is of limited image quality as its base paper absorbs ink.
  • Swelling and microporous papers use a polyethylene (PE) coated base paper that makes the base impermeable to ink.
  • the PE coated bases do not absorb ink; hence the image quality of swelling and microporous papers depends chiefly on the mechanisms of the image receiving layers.
  • Swelling papers consist mainly of water-soluble polymers, offering high optical density, but slow drying, disadvantageous curl and low water resistance. Printing on plastic or fabric presents even more problems particularly with respect to achieving fast ink drying times.
  • Colloidal silicas are useful for the preparation of tough, inkjet-printable coatings on substrates. However, the use of these materials to form highly glossy coatings which are inkjet-printable and have water resistance continues to challenge the art.
  • Another object of the invention is to provide a compatible coating composition of a cationic polymer and colloidal silica which can be coated onto a substrate such as paper, polyester or vinyl, to receive a glossy inkjet image.
  • Still another object herein is to provide an inkjet-printed image which is also water resistant.
  • Fig. 1 is a graph of Gloss Value (60°) vs, wt.% Colloidal Silica in coatings on a polyester substrate formed from a composition of ViviPrintTM 200 cationic polymer and colloidal silica (IJ-25).
  • Fig. 2 is a similar graph for a coating composition of ViviPrintTM 530S (PVP K-90 solution - 22%) and colloidal silica (IJ-25).
  • a compatible inkjet-receptive coating composition for making glossy inkjet-receptive coatings on a substrate comprising:
  • the coating composition includes (a) a water soluble polyvinyl lactam, e.g. vinyl caprolactam (VCL) or polyvinylpyrrolidone (PVP), or copolymers thereof, and blends of such polymers.
  • a water soluble polyvinyl lactam e.g. vinyl caprolactam (VCL) or polyvinylpyrrolidone (PVP), or copolymers thereof, and blends of such polymers.
  • the colloidal silica (b) has an average particle size of less than 100 nm, most preferably about 25 to 50 nm.
  • Additional binders may also be present in the composition e.g. polyvinyl alcohol, cationic polyurethane dispersion, latex and the like.
  • composition of the invention comprises, by weight, (a) 45 to 95% and (b) 5 to 55%.
  • the cationic polymer (a) is a water soluble vinyl lactam polymer, e.g. polyvinylpyrrolidone (PVP), or copolymer thereof, e.g. with vinyl acetate, ViviPrintTM 540 (ISP), ViviPrintTM 530 or ViviPrintTM 200 (ISP), which may be partially crosslinked.
  • Binders such as a cationic polyurethane dispersion, e.g. Witcobond ® W213, polyvinyl alcohol, a latex, cellulose and the like also may be present.
  • a blend of cationic polymers and additional binder is used to increase the water resistance and decrease the tackiness of the coating.
  • the colloidal silica (b) component suitably has an average particle size in the nano particle range, and is preferably colloidal silica IJ-25 or IJ-50 (Millennium) which have particle sizes of about 25 and 50 nm, respectively.
  • An inkjet-receptive coating composition was prepared as follows: Provide 5 g of Witcobond ® W213 (Crompton). Add 10 g water. Mix thoroughly.
  • Example 2 The composition of Example 2 was coated onto a Melanex ® substrate.
  • the gloss of the coated substrate before printing was -90 at 60°. HP 880 print quality is excellent.
  • On Filiperson 180 paper the coating had a similar gloss and dried substantially instantly.
  • Fig. 1 show the effect of composition on gloss. The highest gloss is achieved with a ViviPrintTM 200/IJ-25 composition of 70-95%:5-30%, respectively.
  • Fig. 2 shows the effect on gloss in a ViviPrintTM (PVP)/IJ-25 composition. The highest gloss is achieved at 45-95%/5-55%, respectively.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Ink Jet (AREA)
  • Paper (AREA)

Abstract

A coating composition for forming a glossy, inkjet-receptive coating on a substrate includes (a) a cationic polymer, and (b) colloidal silica having an average particle size in the nanometer range.

Description

COATING COMPOSITION FOR FORMING A GLOSSY INKJET-RECEPTIVE COATING ON A SUBSTRATE
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to inkjet-receptive coating compositions, and, more particularly, to coating compositions of a cationic polymer and colloidal silica having a particle size in the nanometer range, which provide glossy, inkjet-receptive coatings on a substrate.
2. Description of the Prior Art
The image quality of inkjet printing has begun to approach that of silver halide photography and these advances have carried inkjet printing to the point where a further advance now depends on the quality of inkjet papers. An inkjet printed image on plain paper is generally inferior to a silver halide image on photographic paper, but it becomes difficult to distinguish between the two when the inkjet printing is performed on high-grade photo paper.
Currently, three types of inkjet paper are used: cast-coated, swelling and microporous paper. Cast-coated paper is of limited image quality as its base paper absorbs ink. Swelling and microporous papers use a polyethylene (PE) coated base paper that makes the base impermeable to ink. The PE coated bases, however, do not absorb ink; hence the image quality of swelling and microporous papers depends chiefly on the mechanisms of the image receiving layers. Swelling papers consist mainly of water-soluble polymers, offering high optical density, but slow drying, disadvantageous curl and low water resistance. Printing on plastic or fabric presents even more problems particularly with respect to achieving fast ink drying times. Colloidal silicas are useful for the preparation of tough, inkjet-printable coatings on substrates. However, the use of these materials to form highly glossy coatings which are inkjet-printable and have water resistance continues to challenge the art.
Accordingly, it is an object of this invention to provide new and improved inkjet-receptive coatings, and compositions therefor, and, particularly, to such compositions which will provide glossy inkjet-receptive coatings on a substrate.
Another object of the invention is to provide a compatible coating composition of a cationic polymer and colloidal silica which can be coated onto a substrate such as paper, polyester or vinyl, to receive a glossy inkjet image.
Still another object herein is to provide an inkjet-printed image which is also water resistant.
These and other objects and features of the invention will be made apparent from the following description.
IN THE DRAWINGS
Fig. 1 is a graph of Gloss Value (60°) vs, wt.% Colloidal Silica in coatings on a polyester substrate formed from a composition of ViviPrint™ 200 cationic polymer and colloidal silica (IJ-25).
Fig. 2 is a similar graph for a coating composition of ViviPrint™ 530S (PVP K-90 solution - 22%) and colloidal silica (IJ-25). SUMMARY OF THE INVENTION
What is described herein is a compatible inkjet-receptive coating composition for making glossy inkjet-receptive coatings on a substrate comprising:
(a) a cationic polymer, and
(b) colloidal silica having an average particle size in the nanometer range.
Suitably, the coating composition includes (a) a water soluble polyvinyl lactam, e.g. vinyl caprolactam (VCL) or polyvinylpyrrolidone (PVP), or copolymers thereof, and blends of such polymers.
Preferably the colloidal silica (b) has an average particle size of less than 100 nm, most preferably about 25 to 50 nm.
Additional binders may also be present in the composition e.g. polyvinyl alcohol, cationic polyurethane dispersion, latex and the like.
Suitably, the composition of the invention comprises, by weight, (a) 45 to 95% and (b) 5 to 55%.
DETAILED DESCRIPTION OF THE INVENTION
In accordance with the invention, the cationic polymer (a) is a water soluble vinyl lactam polymer, e.g. polyvinylpyrrolidone (PVP), or copolymer thereof, e.g. with vinyl acetate, ViviPrint™ 540 (ISP), ViviPrint™ 530 or ViviPrint™ 200 (ISP), which may be partially crosslinked. Binders such as a cationic polyurethane dispersion, e.g. Witcobond® W213, polyvinyl alcohol, a latex, cellulose and the like also may be present. Most preferably, a blend of cationic polymers and additional binder is used to increase the water resistance and decrease the tackiness of the coating.
The colloidal silica (b) component suitably has an average particle size in the nano particle range, and is preferably colloidal silica IJ-25 or IJ-50 (Millennium) which have particle sizes of about 25 and 50 nm, respectively. The examples which follow will illustrate the invention in more detail.
EXAMPLE 1
An inkjet-receptive coating composition was prepared as follows: Provide 5 g of Witcobond® W213 (Crompton). Add 10 g water. Mix thoroughly.
Add 5.6 g of ViviPrint™ 540 PVP (crosslinked) (ISP, 10% solids). Mix thoroughly.
Add 0.02 g of Surfadone® LP-100 (ISP). Mix thoroughly. Add 1 g of IJ-25 colloidal silica (Millennium). Mix thoroughly. Coating composition has 11 % solids. Dry at 1100C in air oven.
TABLE 1
Figure imgf000005_0001
The composition above was coated using a #40 Meyer rod onto Dupont-Teijen Melanex® film (polyester). The gloss observed was ~90 at 60° using a BYK Gardner Glossmeter (Glossmeter Test). The inkjet print quality on HP 880 was excellent. On Filiperson 180 paper, the coating had a similar gloss level and dried substantially instantly. EXAMPLE 2 Provide 5 g of water.
Add 7 g of polyvinyl alcohol, PVOH (20% solids in water) (13,000-23,000 molecular weight,
87-89% hydrolyzed polymer). (Aldrich). Mix thoroughly. Add 1 g of ViviPrint™ 200 (ISP, 30% solids)*. Mix thoroughly. Add 1 g of IJ-25 colloidal silica (Millennium). Mix thoroughly. Dry at 11O0C in air oven. Coating composition has 14% solids.
TABLE 2
Figure imgf000006_0001
Quatemized terpolymer of 80 wt.% vinyl caprolactam/5 wt.% hydroxy/ ethyl/methacrylate/15 wt.% dimethylaminopropyl methacrylamideΗCI (ISP)
The composition of Example 2 was coated onto a Melanex® substrate. The gloss of the coated substrate before printing was -90 at 60°. HP 880 print quality is excellent. On Filiperson 180 paper the coating had a similar gloss and dried substantially instantly. EXAMPLE 3
TABLE 3
Figure imgf000007_0001
Gloss 90+
* PVP (crosslinked)
EXAMPLE 4
TABLE 4
Figure imgf000007_0002
Gloss 90+
PVP (uncrosslinked) EXAMPLE 5
TABLE 5
Figure imgf000008_0001
Gloss 90+
Fig. 1 show the effect of composition on gloss. The highest gloss is achieved with a ViviPrint™ 200/IJ-25 composition of 70-95%:5-30%, respectively.
Fig. 2 shows the effect on gloss in a ViviPrint™ (PVP)/IJ-25 composition. The highest gloss is achieved at 45-95%/5-55%, respectively.
While the invention has been described with particular reference to certain embodiments thereof, it will be understood that changes and modifications may be made which are within the skill of the art.

Claims

WHAT IS CLAIMED IS:
1. A coating composition for making glossy inkjet-receptive coatings on a substrate comprising:
(a) a cationic polymer, and
(b) colloidal silica having an average particle size in the nanometer range.
2. A coating composition according to claim 1 wherein (a) is a water soluble vinyl lactam polymer.
3. A coating composition according to claim 2 wherein (a) is polyvinylpyrrolidone (PVP), or a copolymer thereof, and mixtures thereof.
4. A coating composition according to claim 1 wherein (a) is a polymer of vinyl caprolactam, or a copolymer thereof , and mixtures thereof.
5. A composition according to claim 1 wherein (b) has an average particle size of less than 100 nm.
6. A composition according to claim 5 wherein (b) has an average particle size of about 25 to 50 nm.
7. A composition according to claim 1 which includes water.
8. A composition according to claim 1 which also includes additional binder(s).
9. A composition according to claim 8 wherein said binder is latex, polyvinyl alcohol, cellulose and/or a cationic polyurethane dispersion.
10. A composition according to claim 1 wherein, by weight, (a) is 45 to 95% and (b) is 5 to 55% of said composition.
11. A composition according to claim 1 wherein, by weight, (a) comprises 70 to 95%, and (b) 5 to 30% of said composition.
12. A composition according to claim 1 wherein said crosslinker is a polyaziridine, glyoxal, polyepoxy, melamine/formaldehyde, ammonium zirconium carbonate, a borate, oxides of zinc and/or a carbodiimide.
13. A composition according to claim 1 wherein the substrate is paper, polyester, vinyl, or textile.
14. A substrate coated with the composition of claim 1.
PCT/US2006/022746 2005-08-08 2006-06-08 Coating composition for forming a glossy inkjet-receptive coating on a substrate Ceased WO2007018723A2 (en)

Applications Claiming Priority (2)

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US11/198,963 US8440273B2 (en) 2005-08-08 2005-08-08 Coating composition for forming a glossy inkjet-receptive coating on a substrate
US11/198,963 2005-08-08

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US20060281849A1 (en) * 2005-06-13 2006-12-14 Isp Investments Inc. Coating compositions for forming a single inkjet-receptive layer on unsubbed textiles for direct inkjet printing with dye and pigment inks thereon
US7972666B2 (en) * 2005-08-18 2011-07-05 Isp Investments Inc. Coating compositions for forming inkjet-receptive coatings on a substrate
WO2009091361A1 (en) * 2008-01-15 2009-07-23 Hewlett-Packard Development Company, L.P. High performance porous ink-jet media with superior image quality
CN109689392B (en) 2016-05-06 2021-06-04 克里奥瓦克有限公司 Absorbable ink jet compositions and methods thereof
JP7057344B2 (en) 2016-08-01 2022-04-19 ルブリゾル アドバンスド マテリアルズ， インコーポレイテッド Coating composition for glossy ink-accepting medium
CN111356594A (en) * 2017-11-17 2020-06-30 3M创新有限公司 Ink-receptive layer for durable labels
US12054600B2 (en) 2020-06-25 2024-08-06 Solenis Technologies, L.P. Compositions and methods for improving adhesion of an image to a treated substrate

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US4455331A (en) * 1982-07-30 1984-06-19 E. I. Du Pont De Nemours And Company Coating composition containing a rheology control additive of silica and polyvinyl pyrrolidone
JP3821532B2 (en) * 1997-02-10 2006-09-13 ソマール株式会社 Method for producing inkjet recording material and coating liquid used therefor
US6391428B1 (en) * 1998-12-08 2002-05-21 Nippon Paper Industries Co. Ltd. Ink jet recording sheet
JP4051838B2 (en) * 1999-04-26 2008-02-27 王子製紙株式会社 RECORDED BODY AND MANUFACTURING METHOD THEREOF
US6562441B1 (en) * 1999-11-19 2003-05-13 Oji Paper Co., Ltd. Ink jet recording medium
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JP4420609B2 (en) * 2002-05-31 2010-02-24 三菱製紙株式会社 Inkjet recording material
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US8440273B2 (en) 2013-05-14
US20070032588A1 (en) 2007-02-08

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