Photosensitive resin composition for corrugated board printing plate

摘要

A liquid photosensitive resin composition used for producing a corrugated board printing plate comprising 100 parts by weight of an unsaturated polyurethane prepolymer (A) wherein the polyol segment comprises a polyether polyol, 17-200 parts by weight of an ethylenically unsaturated compound (B), and 0.01-10 parts by weight of a photopolymerization initiator (C), wherein the component (B) contains 17-65 parts by weight of an acrylate monomer represented by the general formula (I): CH2 = CH-CO-O-(C2H4O)n-R, per 100 parts by weight of the component (A), wherein n represents a number of 1 to 20; and R represents C2-C22 linear or branched alkyl. A corrugated board printing plate produced by curing the composition has a remarkably enhanced impact resilience and enables favorable corrugated board printing without causing paper dust release from the form plate.