Patent ID: 9738800
Date: 2017-08-22
CPC Classifications: B41J,C09D

Claim:
1. A photocurable ink composition comprising polymerizable compounds and a photopolymerization initiator, wherein the polymerizable compounds include: vinyl ether group-containing (meth)acrylic esters represented by the following Formula (I): (wherein, R 1 represents a hydrogen atom or a methyl group; R 2 represents a divalent organic residue having 2 to 20 carbon atoms; and R 3 represents a hydrogen atom or a monovalent organic residue having 1 to 11 carbon atoms); dipropylene glycol di(meth)acrylate; and monofunctional (meth)acrylate having an aromatic ring skeleton, the ink composition includes a coloring material, wherein the content of the monofunctional (meth)acrylate having an aromatic ring skeleton is 10 to 60% by mass based on the total mass of the ink composition, wherein the content of the dipropylene glycol di(meth)acrylate is in the range of 3 to 20% by mass based on the total mass of the ink composition, wherein the photopolymerization initiator is an acylphosphine oxide compound and is contained in an amount between 7 and 15% by mass based on the total mass of the ink composition, and wherein the content of the vinyl ether group-containing (meth)acrylic esters is in the range of 5 to 65% by mass based on the total mass of the ink composition.