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Print receptive topcoat

A surface coating and coating technology, applied in the direction of coating, printing, instruments, etc., can solve problems such as not provided

Pending Publication Date: 2021-06-18
AVERY DENNISON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, none of the references disclosed above provides a topcoat capable of accepting and retaining prints from various printing techniques employing various inks while maintaining adhesion to the underlying substrate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0074] Embodiment 1: A topcoat comprising: (i) a cationic acrylic polymer; and (ii) a cationic polyurethane.

Embodiment approach 2

[0075] Embodiment 2: An embodiment of embodiment 1, wherein the cationic acrylic polymer is present in an amount of 1 part by weight to 99 parts by weight, based on 100 parts by weight total.

Embodiment approach 3

[0076] Embodiment 3: An embodiment of any one of embodiments 1-2, wherein the cationic acrylic polymer is selected from the group consisting of: aliphatic cationic acrylates, aromatic cationic acrylates, aliphatic cationic methacrylates and aromatic cationic methacrylates, and combinations thereof.

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PUM

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Abstract

A topcoat comprising a cationic acrylic polymer and cationic polyurethane is provided. The cationic acrylic polymer and / or the cationic polyurethane may be crosslinked. The topcoat is a universal print receptive topcoat which has improved adhesion of a variety of printing techniques, including for low migration inks. The topcoat may coat a substrate, such as a label or paper. The topcoat advantageously has strong adhesion to the substrate or paper.

Description

[0001] priority statement [0002] This application claims priority from Indian Patent Application 201811032688 filed on August 31, 2018, the entire content and disclosure of which is incorporated herein. technical field [0003] The present invention generally relates to topcoats comprising cationic acrylic polymers and cationic polyurethanes. A top coat that can accept printing from many individual printing platforms and can have desirable ink anchorage for conventional inks and low migration inks. Background technique [0004] Print receptive topcoats are used in a variety of applications, including topcoats for films and paper. Depending on the purpose of the topcoat, different printing techniques are used. Non-limiting examples of these techniques include dry toner printing, liquid toner printing, UV flexo, WB (water based) flexo, offset printing, laser printing, and HP Indigo printing. Because of the compositions and methods used for these various printing technique...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G7/00C09D133/06C09D133/08C09D133/14B41M5/52
CPCG03G7/004G03G7/0046C09D133/066C09D133/14B41M5/5245B41M5/5254B41M5/52B41M5/5281C08L75/04B41M5/5227
Inventor D·帕蒂尔
Owner AVERY DENNISON CORP