Radiation curing ink

摘要

A radiation-curing ink composition contains a vehicle mixture comprising: (A) an ingredient selected from the group consisting of a skeletal linear polyester oligomer having 1 to 10 double bonds in a molecule and a polymer of the oligomer, (B) an ingredient selected from the group consisting of a double bond-containing carboxylic acid wherein the acid has at least one acidic group which is capable of forming a water-soluble alkali metal salt in a molecule, a carboxylic ester of the acid and a carboxylic amide of the acid, (C) a double bond-containing carboxylic ester, having 2 to 10 acidic groups which are capable of forming an alkali metal salt capable of swelling with water absorption, (D) an ingredient selected from the group consisting of a fluorinated double bond-containing carboxylic ester wherein the fluorine component is oriented on the surface of a copolymer or polymer to give water-repellency, a block copolymer which comprises a surface-oriented and water-repellent fluorinated alkyl group-containing polymer segment and a (meth)acrylic polymer segment, and a block copolymer which comprises a surface-oriented and water-repellent siloxane group-containing polymer segment and a (meth)acrylic polymer segment, (E) a double bond-containing polycarboxylic ester, and (F) an ingredient selected from the group consisting of a double bond-containing carboxylic monoester and its amide, wherein the acid value of the vehicle mixture is from 5 to 100, is provided.