ELECTRO-PHOTOGRAPHICALLY PRODUCED OFFSET PRINTING PLATE WITH HYDROPHILIC TONERED AREAS AND OLEOPHILIC UNTONERED AREAS

摘要

A new offset printing plate produced by an electrophotographic process comprises a non-deformable electroconductive support (A), at least one photoconductive layer (B) and a printing surface (C) comprised of hydrophilic regions (c1) non-image carrying of water and oleophilic areas (c2) printers, not stained with toner and carrying colors. The new offset printing plate can be produced in known manner by an electrophotographic process; is used for this purpose hydrophilic toners or not easily hydrophilisables chemically, when mixed with suitable reagents, thermochemically, when heated and / or by photochemical or radiochemical route, when subjected to irradiation by electromagnetic radiation or particles.