Presensitized printing plate and process for the production of dry lithographic printing plates

摘要

It is a presensitized printing plate for waterless planographic printing comprising a layer support, a radiation-sensitive layer a) a compound having at least one acid-cleavable COC bond, b a compound forming a strong acid) upon irradiation and c) a water-insoluble binder includes, an outer, ink-repellent ver-crosslinked silicone rubber layer and described an intermediate layer which improves the adhesion of the silicone rubber layer on the radiation-sensitive layer.; The pressure plate has a much higher sensitivity than known Lichtemp negative working waterless offset printing plates.