Patent ID: 6596464
Filing Date: 2003-07-22
Classification: B41C,C09D,Y10S

Abstract:
A lithographic printing method comprising the steps ofproviding an imaging material which comprises a support and an image-recording layer or an image-recording surface, wherein said layer or surface is not removable with a single-fluid ink comprising an ink phase and a polar phase; image-wise exposure of the imaging material to heat or light without substantially ablating said image-recording layer or surface, thereby switching the affinity of the image-recording layer or surface towards ink or an ink-abhesive fluid and thereby creating a printing master comprising a lithographic image which consists of unexposed areas that have affinity for one phase of said ink phase and polar phase and of exposed areas that have affinity for the other phase of said ink phase and polar phase; printing, wherein the single-fluid ink is supplied to the printing master.