Patent ID: 8822131
Filing Date: 2014-09-02
Classification: G03F,Y10T

Abstract:
1. A flexographic printing plate precursor that comprises a support, a photosensitive resin layer, and an infrared ablation layer that are mutually laminated, wherein the infrared ablation layer comprises a binder polymer and an infrared absorbing material, the binder polymer contained in the infrared ablation layer comprises a polymer (A) and an acrylic resin (B), the polymer (A) comprising the same structural unit as a structural unit contained in a binder polymer in the photosensitive resin layer, and a mass ratio (A/B) of the component (A) with respect to the component (B) being within a range of 1/3 to 3/1, the component (B) has a glass transition temperature within a range of 48° C. to 85° C., and a difference between a plastic hardness (Ha) of the infrared ablation layer in a state in which the infrared ablation layer is laminated on the photosensitive resin layer and a plastic hardness (Hb) of the photosensitive resin layer is 30 mN/mm