Patent ID: 6171735
Filing Date: 2001-01-09
Classification: B41C,G03F

Abstract:
An imaged printing plate formed by(a) exposing to radiation a negative-acting printing plate comprising a substrate having coated thereon a photosensitive composition comprising;(i) a reactive, acid functional polymer of the formula B(X)(Y), wherein B represents an organic backbone, each X independently is an acidic group and each Y independently is a photocurable group, and(ii) a photoinitiator which initiates crosslinking of said polymer upon exposure to said radiation to form a latent image-bearing article;(b) applying a fountain solution on press to said latent image-bearing article without intervening development of the latent image-bearing article; and(c) thereafter applying an ink to said latent image-bearing article, whereby an imaged printing plate is formed from the latent image-bearing article on-press.