Processless printing plate with high ratio of anorganic pigment over hardener

摘要

According to the present invention there is provided a heat-sensitive material for making lithographic plates comprising in the order given on a support an IR-sensitive oleophilic layer and an ablatable cross-linked hydrophilic layer comprising an anorganic pigment and a hardener, characterized in that the ratio of said anorganic pigment over the hardener is comprised between 95/5 and 75/25 by weight.