PHOTOSENSITIVE COMPOSITION

摘要

PURPOSE:To obtain a photosensitive compsn. excellent in alkali developability, plate wear, stain resistance and preservability. CONSTITUTION:This photosensitive compsn. contains a compd. having at least one addition-polymerizable ethylenically unsatd. double bond, an acidic vinyl copolymer contg. constituent units each derived from a vinyl monomer having an arom. hydroxyl group in each molecule and soluble or swellable in an alkaline aq. soln., a photopolymn. initiator and diazo resin which is a co-condensed compd. contg. constituent units each derived from an arom. compd. having at least one of carboxyl and hydroxyl groups and constituent units each derived from an arom. diazonium compd. in each molecule.