| 摘要 |
PROBLEM TO BE SOLVED: To ensure ink repellency and to form the pattern of digital-processed image information with low output visible light laser by incorporating a photosensitive compsn contg. a polymerizable compd. having at least one ethylenic unsatd. group and a specified iron complex salt into a photosensitive layer. SOLUTION: A photosensitive compsn. consisting of a polymerizable compd. having at least one ethylenic unsatd. group, an iron complex salt represented by the formula, at least one kind of tert. amine, one or more kinds of compds. selected from among org. halogen compds., arom. iodonium salts and arom. sulfonium salts and at least one kind of dye as a spectral sensitizer or a UV sensitizer is contained in a photosensitive layer formed in a hydrophilic swellable layer and/or on the swellable layer. In the formula, each of R<1> and R<2> is a monovalent org. halogen or cyano, (m) is an integer of 0-5, (n) is an integer of 0-6 and X is a monovalent residue of an acid. |
