Resins Influence on the Sensitivity of the CTP Plate

摘要

Resole and novolac are the coating resins of the CTP (Computer to Plate) thermal cross-linking plate and their characters directly determine the light sensitivity of the plate. In this paper, these resins were studied, and experiments showed that when the novolac's molecule weight is about 5000, the light sensitivity and the quality of the plate are the best. The optimal conditions of synthesizing resole were obtained, and more experiments were attempted to improve the light sensitivity of the plate through altering the proportion between the two image resins.