LITHOGRAPHIC PRINTING PLATE MATERIAL, AND METHOD FOR PRODUCTION OF LITHOGRAPHIC PRINTING PLATE

摘要

Disclosed is a lithographic printing plate material which comprises: a support; and a photosensitive layer comprising (A) a compound having an ethylenically unsaturated bond, (B) a photopolymerization initiator, (C) a polymeric binder and (D) a sensitizing dye, wherein the photosensitive layer contains a compound (E) having an ethylenically unsaturated bond, a thiourethane bond (-SCONH-) and a tertiary amine structure in the molecule as the compound (A) having an ethylenically unsaturated bond. The lithographic printing plate material has high sensitivity and excellent printing durability.