US20040072926A1 - Coating composition for inkjet printing - Google Patents

Coating composition for inkjet printing Download PDF

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Publication number
US20040072926A1
US20040072926A1 US10267440 US26744002A US2004072926A1 US 20040072926 A1 US20040072926 A1 US 20040072926A1 US 10267440 US10267440 US 10267440 US 26744002 A US26744002 A US 26744002A US 2004072926 A1 US2004072926 A1 US 2004072926A1
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Prior art keywords
composition
pvpp
water
composition according
inkjet
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Abandoned
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US10267440
Inventor
Robert Gibbison
Andrew Mint
Sarah Orton
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ISP Investments LLC
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ISP Investments LLC
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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
    • B41M5/50Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52Macromolecular coatings
    • 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
    • B41M5/50Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52Macromolecular coatings
    • B41M5/5218Macromolecular coatings characterised by inorganic additives, e.g. pigments, clays
    • 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
    • B41M5/50Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52Macromolecular coatings
    • B41M5/5254Macromolecular coatings characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers

Abstract

An inkjet-receptive coating composition for efficacious inkjet printing which is a synergistic composition of swellable, water-insoluble polyvinylpyrrolidone particles and microporous (fumed) silica particles.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention [0001]
  • This invention relates to an inkjet-receptive coating composition for efficacious inkjet printing, and, more particularly, to a synergistic composition of swellable, water-insoluble polyvinylpyrrolidone particles and microporous (fumed) silica particles. [0002]
  • 2. Description of the Prior Art [0003]
  • 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. [0004]
  • Currently, three types of glossy inkjet paper are used: cast-coated, swelling and microporous. Cast-coated paper is of limited image quality as its base paper absorbs ink. Swelling and microporous papers avoid this because they 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, low gloss, disadvantageous curl and low water resistance. [0005]
  • Accordingly, it is an object of this invention to provide new and improved inkjet-receptive coating compositions for inkjet-substrates such as paper for efficacious inkjet printing. [0006]
  • SUMMARY OF THE INVENTION
  • What is described herein is an inkjet-receptive coating composition for efficacious, water-resistant inkjet printing which is: [0007]
  • (a) (i) swellable, water-insoluble polyvinylpyrrolidone (PVPP) particles and (ii) microporous silica particles, and (b) a binder for the particles. [0008]
  • In a preferred embodiment, (a) is 2-5% by weight, and (b) is 5-15% by weight, of the composition. [0009]
  • The (b) binders are polymeric materials such as polyvinyl alcohol. [0010]
  • A preferred microporous composition includes water at a suitable solids content, e.g. 18%.[0011]
  • DETAILED DESCRIPTION OF THE INVENTION
  • In accordance with the invention, there is provided herein an inkjet- receptive coating composition for efficacious inkjet printing. The composition is: [0012]
  • (a) (i) swellable, water-insoluble polyvinylpyrrolidone (PVPP) particles and (ii) microporous silica particles, and (b) a binder for the particles. [0013]
  • In a preferred embodiment, (a) is 2-5% by weight and (b) is 5-15% by weight of the composition. [0014]
  • Suitable (b) binders are polymeric materials such as polyvinyl alcohol. [0015]
  • A preferred microporous composition includes water at a suitable solids content, e.g. 18%. [0016]
  • The water-insoluble, crosslinked PVPP powder in the composition herein acts as a microporous inkjet layer and at the same time imparts water resistance to the print. Typically, the PVPP powder has an average particle size of about 27 micron and a BET surface area of about 1.9 m[0017] 2/g.
  • The microporous or fumed silica component of the composition of the invention differs from precipitated and gel-type grades of silica since it has little or no internal porosity. The BET surface area of fumed silica reflects overwhelmingly external surface area and little internal porosity. Fumed silica is a very fine particle size material with high levels of external microporosity. A typical fumed silica has a BET surface area of 380 m[0018] 2/g, a high bulk density and a particle size in the range of 6-30 microns. Fumed silica particles stick together to form agglomerate particle chains.
  • The combination of PVPP and fumed silica is microporous in nature and its structure presents a honeycomb of pores to receive the ink. Such an admixture thus achieves high ink absorbing speed and image permanence without swelling the paper. [0019]
  • Suitably, the (c) binder in the coating composition of the invention may be any polymeric material conventionally used in commercial inkjet-receptive coating compositions, for example, polyvinyl alcohol, gelatin, and the like. Polyvinyl alcohol is preferred, however. [0020]
  • Suitable weight ratios of PVPP and fumed silica are about 10-70% PVPP to 30-90% fumed silica, preferably 30-50:50:70. [0021]
  • The invention will now be described in more detail with reference to the following experimental results. [0022]
  • Coating Formulations [0023]
  • Formulations incorporating PVPP and fumed silica in ratios of 30:70 and 50:50 by weight were prepared with a polyvinyl alcohol (PVOH) material as binder therein. The weight ratio of PVOH to silica/PVPP was 1:2. With water, the formulations had an 18% solids content. [0024]
    TABLE 1
    Formu-
    lation A B C
    0% PVPP 30% PVPP 50% PVPP
    Ingredient (Mass/g) (Mass/g) (Mass/g)
    PVPP (15% solids solution)** 141 235
    Fumed Silica (15% solids 470 329 235
    solution)*
    PVOH (35% solids solution) 100 100 100
    Water 20 20 20
  • Coating Technique: [0025]
  • Each formulation was applied to 80 gsm ASA sized paper using the K coater, Meyer bar 0, speed 3. The coatings weighed 20-21 gsm, after drying at 100° C. for 2 minutes. [0026]
  • Evaluation of Coated Paper Printing: [0027]
  • Both thermal and piezoelectric print heads were utilized: HP DeskJet 930C—mode-plain paper draft print quality 300×600 dpi was used. Typically an Epson Stylus Photo 890 was used alternatively, plain paper, automatic, microweave on, high speed on−360 dpi. Color blocks of black, cyan, magenta and yellow were produced on the printer for each formulation and for the uncoated base paper which was used as a reference for optical density measurements. Lines, DPI varying color blocks and interbleed color blocks were printed for microscopy. [0028]
  • Printing Assessments: [0029]
  • Drying Times [0030]
  • Each print was allowed to dry for 1 minute after printing, and then each color block was transfer tested (blotted) onto ASA 80 gsm. The amount of ink transfer was visually interpreted and scored 0 (total transfer)—10 (no transfer). [0031]
  • Optical Density and Water Fastness—Change in Optical Density After Water Immersion [0032]
  • Water immersion 23° C./10 mins. [0033]
  • Instrumentation—GretagMacbeth D196, where the unprinted paper coating was used as the white base standard and the filmic coatings were overlaid onto ASA paper and the unprinted area used as the white base standard. The optical density was read over 4 areas on each color block to assess the variation (mottle). [0034]
  • Preparation of Coated Papers [0035]
  • The Flow Chart below was used to prepare papers coated with the compositions of the invention. [0036]
  • Preparation of Coated Papers
  • [0037]
    Figure US20040072926A1-20040415-C00001
  • RESULTS 1. Drying Times
  • The dry time transfer test was a visual interpretation of the amount of ink transferred onto a standard base paper 1 minute after printing. All formulations scored 10 with no ink transfer. [0038]
  • 2. Initial Optical Density
  • A slight decrease in optical density as the PVPP content increased in the composition was noted because the highly microporous structure of the fumed silica gave excellent print definition and ink resolution which could not be fully matched by PVPP. This trend, however, was very much less marked with the HP inks; typically, black HP pigmented ink showed no change in optical density with compositions containing PVPP. [0039]
  • The degree of variation in optical density (mottle) however, decreased as the silica was replaced by the PVPP, perhaps because PVPP provided a more even coating. [0040]
  • 3. Water Resistance Tests
  • As the silica was replaced by PVPP in the composition, the water resistance of the print increased significantly for both Epson and HP inks. Specifically, the Epson inks gave up to 68% loss of optical density after water immersion with 0% PVPP, only up to 13% loss with 30% PVPP and only a maximum of 7% loss with 50% PVPP in the composition. These advantageous results were only somewhat less pronounced with HP inks. [0041]
  • 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. Accordingly, it is intended to be bound only by the following claims, in which: [0042]

Claims (10)

    What is claimed is:
  1. 1. An inkjet-receptive coating composition for efficacious, water- resistant inkjet printing comprising:
    (a) (i) swellable, water-insoluble polyvinylpyrrolidone (PVPP) particles and (ii) microporous silica, and (b) a binder for said particles.
  2. 2. A composition according to claim 1 wherein, by weight, (a) is 2-5% and (b) is 5-15%, of the composition.
  3. 3. A composition according to claim 1 wherein (b) is a polymer.
  4. 4. A composition according to claim 3 wherein (b) is polyvinyl alcohol.
  5. 5. A composition according to claim 1 which is a microporous composition.
  6. 6. A composition according to claim 1 wherein (ii) is fumed silica.
  7. 7. A composition according to claim 1 including (c) water.
  8. 8. A composition according to claim 7 at a solids content of 18%.
  9. 9. A composition according to claim 1 wherein the weight ratio of (i) to (ii) is 10-70:30-90.
  10. 10. A composition according to claim 9 wherein said weight ratio is 30-50:50-70.
US10267440 2002-10-09 2002-10-09 Coating composition for inkjet printing Abandoned US20040072926A1 (en)

Priority Applications (1)

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US10267440 US20040072926A1 (en) 2002-10-09 2002-10-09 Coating composition for inkjet printing
PCT/US2003/030215 WO2004033564A3 (en) 2002-10-09 2003-09-24 Coating composition for inkjet printing
AU2003278920A AU2003278920A8 (en) 2002-10-09 2003-09-24 Coating composition for inkjet printing
US11057649 US7439295B2 (en) 2002-10-09 2005-02-14 Synergistic coating composition for inkjet printing

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050124745A1 (en) * 2002-04-19 2005-06-09 Saint-Gobain Ceramics & Plastics, Inc. Flame retardant composites
US7972666B2 (en) * 2005-08-18 2011-07-05 Isp Investments Inc. Coating compositions for forming inkjet-receptive coatings on a substrate
US7651748B2 (en) * 2005-10-25 2010-01-26 Isp Investments Inc. Coating compositions for forming inkjet-receptive coatings on a substrate
US7682438B2 (en) 2005-11-01 2010-03-23 International Paper Company Paper substrate having enhanced print density
US8057637B2 (en) 2007-12-26 2011-11-15 International Paper Company Paper substrate containing a wetting agent and having improved print mottle
CA2726253C (en) * 2008-05-29 2013-08-27 International Paper Company Fast dry coated inkjet paper
WO2010039996A1 (en) 2008-10-01 2010-04-08 International Paper Company A paper substrate containing a wetting agent and having improved printability
WO2010077779A3 (en) * 2008-12-17 2010-10-21 Saint-Gobain Ceramics & Plastics, Inc. Applications of shaped nano alumina hydrate in inkjet paper
CN106638041A (en) * 2015-10-28 2017-05-10 福建华峰运动用品科技有限公司 A shoe upper fabric, a shoe upper and a shoe upper manufacturing method

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US4832984A (en) * 1986-02-07 1989-05-23 Canon Kabushiki Kaisha Image forming method
US5910359A (en) * 1995-10-04 1999-06-08 Fuji Photo Film Co., Ltd. Recording sheet and image forming method
US5985425A (en) * 1997-03-31 1999-11-16 Somar Corporation Ink-jet recording film of improved ink fixing comprising a combination of silica powders
US20020045034A1 (en) * 2000-08-23 2002-04-18 Hanae Nakatani Ink-jet recording material
US20020182376A1 (en) * 2001-03-27 2002-12-05 Debabrata Mukherjee Novel universal ink jet recording medium
US6514601B1 (en) * 2001-05-07 2003-02-04 Eastman Kodak Company Ink jet recording element
US6582802B1 (en) * 1999-11-18 2003-06-24 Konica Corporation Ink jet recording medium
US6677007B1 (en) * 1999-02-12 2004-01-13 3M Innovative Properties Company Image receptor medium and method of making and using same
US6692799B2 (en) * 2000-06-09 2004-02-17 3M Innovative Properties Co Materials and methods for creating waterproof, durable aqueous inkjet receptive media

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US5270103A (en) * 1990-11-21 1993-12-14 Xerox Corporation Coated receiver sheets

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US4832984A (en) * 1986-02-07 1989-05-23 Canon Kabushiki Kaisha Image forming method
US5910359A (en) * 1995-10-04 1999-06-08 Fuji Photo Film Co., Ltd. Recording sheet and image forming method
US5985425A (en) * 1997-03-31 1999-11-16 Somar Corporation Ink-jet recording film of improved ink fixing comprising a combination of silica powders
US6677007B1 (en) * 1999-02-12 2004-01-13 3M Innovative Properties Company Image receptor medium and method of making and using same
US6582802B1 (en) * 1999-11-18 2003-06-24 Konica Corporation Ink jet recording medium
US6692799B2 (en) * 2000-06-09 2004-02-17 3M Innovative Properties Co Materials and methods for creating waterproof, durable aqueous inkjet receptive media
US20020045034A1 (en) * 2000-08-23 2002-04-18 Hanae Nakatani Ink-jet recording material
US20020182376A1 (en) * 2001-03-27 2002-12-05 Debabrata Mukherjee Novel universal ink jet recording medium
US6514601B1 (en) * 2001-05-07 2003-02-04 Eastman Kodak Company Ink jet recording element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Also Published As

Publication number Publication date Type
US7439295B2 (en) 2008-10-21 grant
WO2004033564A3 (en) 2004-10-28 application
WO2004033564A2 (en) 2004-04-22 application
US20050146589A1 (en) 2005-07-07 application

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Owner name: ISP INVESTMENTS INC., DELAWARE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GIBBISON, ROBERT;MINT, ANDREW;ORTON, SARAH;REEL/FRAME:013550/0767;SIGNING DATES FROM 20021015 TO 20021017