POSITIVE PHOTOSENSITIVE LITHOGRAPHIC PRINTING PLATE MATERIAL

摘要

A positive photosensitive lithographic printing plate material excelling in not only prevention of image irregularity needed for realization of enhanced fineness but also sensitivity, development latitude and chemical resistance. The positive photosensitive lithographic printing plate material is characterized by having an aluminum support and, sequentially superimposed thereon, an underlayer containing an alkali-soluble resin and any of the acidolytic compounds of the following general formula (1) and an upper layer containing an alkali-soluble resin and a photothermally convertive compound, wherein at least one of the upper layer and underlayer contains an acrylic resin having a fluoroalkyl group. General formula (1):