Processless printing plate with low ratio of an inorganic pigment over hardener

A heat-sensitive material for making lithographic plates comprising in the order given on a support an IR-sensitive oleophilic layer and a cross-linked hydrophilic layer comprising a hydrophilic organic polymer, an inorganic pigment and a hardener, said cross-linked hydrophilic layer being free of photothermal conversion material;

• wherein the ratio of said inorganic pigment over the hardener is comprised between 75/25 and 25/75 by weight, and wherein the inorganic pigment is present in an amount of 75% or less by weight of the cross-linked hydrophilic layer.