PRODUCTION OF PLANOGRAPHIC PRINTING PLATE

摘要

PURPOSE:To produce the planographic printing plate which has the high adhesiveness of image parts and a base and the excellent image part strength and printability at the time of development and is free from the generation of surface stains by incorporating silicate into a developer used for development. CONSTITUTION:The silicate is incorporated into the developer used at the time of exposing and developing the photosensitive planographic printing plate which is formed by applying a liquid compsn. contg. an inorg. high polymer obtd. by subjected an org. metal compd. having an org. functional group and a group to be polycondensed in succession to hydrolysis to the hydrolysis and polycondensation in a liquid on a metallic surface and providing a photosensitive resin layer thereon. The planographic printing plate which has high adhesiveness of the image parts and the base and the excellent image part strength and printability at the time of development and is free from the generation of surface stains is produced in this way.