Patent ID: 7078150

Claim:
A photosensitive resin printing plate material, which comprises a support, a photosensitive resin layer containing at least one of a polymer selected from the group consisting of partially-saponified polyvinyl acetate, polyamide resin, polyvinyl alcohol, and their modified derivatives, along with an ethylenic unsaturated compound and a photopolymerization initiator and a photocoloring single layer containing 1–40% by weight of a photothermal-transforming substance, 0.1–30% by weight of a thermal color former and 0.1–50% by weight of a developer, based on the solid content of the photocolor single layer, and in which the photocoloring single layer is UV-transmissive before being colored, and is colored through exposure to light having a wavelength of from 450 to 1500 nm to be substantially UV-non-transmissive.