Photosensitive composition containing 1,2-naphthoquinone-2- diazido-4- sulfonic acid ester, alkali-soluble resin, halomethyloxadiazole compound and a dye

摘要

A photosensitive composition comprising (a) a 1,2- naphthoquinone-2- diazido-4-sulfonic acid ester compound, (b) alkali- soluble resin, (c) a halomethyloxadiazole compound which releases halogen free radicals by irradiation with actinic rays and (a) a dye which interacts withthe decomposition product of said halomethyloxydiazole compound and discolors or develops color. The composition exhibits excellent development latitude, light safety, visible-on-exposure characteristic and printing resistance.