Patent ID: 9376579
Filing Date: 2016-06-28
CPC Classification: B41M,C09D

Claim Text:
1. An intaglio printing ink comprising: at least an ultraviolet curable composition; an oxidation polymerizable composition; a photopolymerization initiator; an oxidation polymerization catalyst; and a pigment; wherein the ultraviolet curable composition comprises an acid-modified epoxy-acrylate prepared by reacting a polybasic acid anhydride with an epoxy-acrylate obtained by reacting only an acrylate, having two or more acryloyl groups and one carboxyl group in one molecule, with an epoxy compound having two or more epoxy rings in one molecule, wherein the acrylate having two or more acryloyl groups and one carboxyl group in one molecule is an acrylate obtained by reacting pentaerythritol acrylate or dipentaerythritol pentaacrylate with succinic anhydride or maleic anhydride, wherein the polybasic acid anhydride is succinic anhydride or maleic anhydride, wherein the acid-modified epoxy-acrylate is obtained without removing (meth) acrylic acid residue after reacting the polybasic acid anhydride with the epoxy-acrylate, and wherein the acid-modified epoxy-acrylate is obtained by reacting the polybasic acid anhydride with the epoxy-acrylate in a ratio of substantially 1 molar of the polybasic acid anhydride to 1 molar of a hydroxyl group of the epoxy-acrylate.