PHOTOPOLYMERIZABLE COMPOSITION FOR NEAR INFRARED LASER EXPOSURE, PHOTOPOLYMERIZABLE PLANOGRAPHIC PRINTING PLATE AND METHOD FOR PRODUCING PRINTING PLATE

摘要

PROBLEM TO BE SOLVED: To provide a photopolymerizable composition for a near infrared laser having high sensitivity and excellent in visible image forming property.;SOLUTION: In the photopolymerizable composition for near infrared laser exposure containing (A) an ethylenically unsaturated compound, (B) a cyanine sensitizing dye and/or a phthalocyanine sensitizing dye having a structure with heterocycles bonded through a polymethine chain and (C) a compound containing an organic boron anion and/or a halomethyl group, (D) 1-3 wt.% coloring dye having the absorption maximum at 450-650 nm is contained.;COPYRIGHT: (C)2002,JPO