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Inkjet receiving medium and pre-treatment composition for inkjet printing

A technology for accepting media, coating compositions, applied in printing, printing devices, replication/marking methods, etc., to achieve low coverage, improved print durability, and low cost

Active Publication Date: 2014-12-24
EASTMAN KODAK CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has been a challenge to produce water-resistant images with water-based pigmented inks so that when the end user turns the pages with wet fingers or water touches the print, there will be no ink smearing

Method used

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  • Inkjet receiving medium and pre-treatment composition for inkjet printing
  • Inkjet receiving medium and pre-treatment composition for inkjet printing
  • Inkjet receiving medium and pre-treatment composition for inkjet printing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] The treatment solutions TS-1.1 and TS-1.2 contain the same components but in different proportions. These components are described in Table 1.1 below:

[0085] Table 1.1

[0086]

[0087] The coating experiment outlined below examines the changes in the surfactant package, the level of cross-linking agent and the use of Lanco 1796 (Lubrizol, PTFE wax powder, 6 micron average particle size) to cross-linked methyl methacrylate polymer matte beads (Kodak MP1). , 4 micron average particle size) replacement on the dry friction resistance. Based on the online publication literature of Plastics International (http: / / www.plasticsintl.com / sortable_materials.php), the crosslinked methyl methacrylate polymer has an estimated Rockwell hardness of R100, and PTFE has an estimated Rockwell hardness of R58. Use a laboratory grade extrusion hopper coater to coat the solution on Sterling Ultragloss (NewPage) offset printing paper. The coated samples were printed by using a KODAK PROSPER c...

Embodiment 2

[0098] The treatment solution TS-2 contained 9.9 parts of CaCl2 salt (Oxychem), 1.0 part of Catiofast159A polyamine polymer (BASF), 0.25 part of PrintRite DP376 polyurethane latex (Lubrizol), and 0.2 part of guar gum thickener (TIC Gums). Using a laboratory-grade extrusion hopper coater on Sterling Ultragloss offset printing paper at 0.65 g / m 2 Dry the cover and apply it. The coated paper was printed and tested for dry rubbing properties as described in Example 1. The coated paper showed very poor dry rubbing resistance. Additional coatings were made with a similar solution containing Lanco 1796 PTFE wax (Lubrizol, 6 micron average particle size) or Lanco 1799 PTFE wax (Lubrizol, 4 micron average particle size). Lanco wax is added at a level to provide 0.01, 0.02 and 0.04 g / m to the dry coating 2 Lanco wax. When these coatings were printed and tested for dry rub resistance, a dramatic improvement in the dry rub resistance of these formulations relative to the base TS-2 solutio...

Embodiment 3

[0102] The treatment solution TS-3 contains 50 parts of CaCl2 (anhydrous, Oxychem), 22 parts of Z320 modified polyvinyl alcohol (Nippon Gohsei), 9 parts of Raycat56 cationic styrene-acrylic latex (Specialty Polymer), 4.7 parts of Polycup172 crosslinking agent (Ashland). A series of matte particles and waxes of different composition, particle size and coverage were added to TS-3, as described in the following table, and coated to evaluate its influence on dry rub resistance. The matte particles MP1, MP2 and MP3 were produced in Kodak; Lanco 1796 and Lanco 1799 were obtained from Lubrizol Advanced Materials; CoatOSil DSA 6 was obtained from Momentive Performance Chemicals; Hydrocerf 9174, Fluoropure Ultrafine 50CW and nanoFlon W50C were obtained from Shamrock Technologies; Acumist A6 From Honeywell. A Horiba LA-920 particle size analyzer was used to measure the particle size in the water / surfactant dispersion; the mode ESD particle size was recorded. Based on Plastics Internati...

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Abstract

A coating composition for pre-treating a substrate prior to inkjet printing thereon, and an inkjet receiving medium comprising a substrate and having a topmost layer coated thereon, where the coating composition has a solids content which comprises at least 30 wt% of one or more aqueous soluble salts of multivalent metal cations, and particles comprised primarily of polymer having a Rockwell Hardness of less than R90 and having a mode equivalent spherical diameter of at least about 2 micrometers. When coated, the composition provides at least 0.01 g / m2 of particles comprised primarily of polymer having a Rockwell Hardness of less than R90 and which have an equivalent spherical diameter of i) at least about 2 micrometers and ii) at least 0.1 micrometer greater than the minimum coated thickness of the topmost layer.

Description

[0001] field of invention [0002] The present invention relates to the field of inkjet printing. In particular, the present invention relates to a composition applied to a substrate to enhance the quality of inkjet prints printed with pigment-based inks, inkjet recording media treated with such a composition, and printing systems using such media and methods. Background of the invention [0003] The present invention relates in part to overcoming the problems of printing with aqueous inkjet inks on smooth or semi-glossy coated paper or the like. Over the years, such coated papers that are currently available have been designed to be compatible with conventional similar printing techniques, such as offset printing, and can be designed as "offset papers". Printing inks used in offset printing processes typically have a very high solids content and the solvents are usually non-aqueous. Accordingly, coatings currently used to make glossy and semi-glossy offset papers, su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/00B41M5/50
CPCB41M5/502B41M5/5218B41M2205/40B41M5/0017B41M5/52
Inventor T. J. 丹豪泽Y. 香R. 博特罗斯
Owner EASTMAN KODAK CO
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