PHOTOPOLYMERIZATION INITIATOR, PHOTOPOLYMERIZABLE COMPOSITION, METHOD FOR GENERATING RADICAL, PHOTOSENSITIVE MATERIAL FOR MANUFACTURING PLANOGRAPHIC PRINTING PLATE, AND METHOD FOR MANUFACTURING PLANOGRAPHIC PRINTING PLATE

摘要

PROBLEM TO BE SOLVED: To provide a photopolymerization initiator, a method for generating a radical, a photopolymerizable composition permitting writing by light corresponding to an output of 400-550 nm and formation of an image of good sensitivity, a photosensitive material for manufacturing a planographic printing plate exhibiting high sensitivity and excellent preservation stability obtained using the same, and a method for manufacturing a planographic printing plate permitting to obtain printed matter exhibiting high sensitivity and excellent preservation stability.;SOLUTION: The photopolymerization initiator comprises a radical generator and a specific sensitizing dye.;COPYRIGHT: (C)2003,JPO