ORIGINAL PLATE FOR DIRECT DRAWING TYPE LITHOGRAPHIC PRINTING PLATE

摘要

PROBLEM TO BE SOLVED: To obtain an original plate for a direct drawing type lithographic printing plate capable of printing many printed matters of a clear image without scumming as an offset original plate and without lack/distortion or the like of an image. SOLUTION: The original plate for the direct drawing type lithographic printing plate comprises an image acceptive layer on a water resistant support. In the original plate, the image acceptive layer contains at least a porous filler, and a binding resin made of a composite material of a resin containing metallic atoms bonded via oxygen atoms and an organic polymer having a group capable of forming a hydrogen bond with the resin.