POSITIVE WORKING LIGHT-SENSITIVE COMPOSITION CONTAINING A FREE RADICAL GENERATOR AND A DISCOLORING AGENT

摘要

A light-sensitive composition is herein disclosed, which comprises at least one free radical generator represented by the following general formula: [I] and at least one discoloring agent which interacts with products generated through the photolytic degradation of the free radical generator to change the color tone of the composition. The composition has a high stability with time and a good printing out property and therefore it can be used in making light-sensitive layer of PS plates, photoresists, proof plates for printing and films for overhead projector, intermediate print and photomask having high sensitivity long shelf life.