Photosensitive structure for flexographic printing plate and method for producing flexographic printing plate

Abstract

A photosensitive resin structure for a flexographic printing plate, containing (a): a support; (b): a photosensitive resin composition layer which is located on the support (a) and which contains a thermoplastic elastomer having a copolymer site of a monovinyl-substituted aromatic hydrocarbon and a conjugated diene; and (c): an infrared ray ablation layer which is laminated on the photosensitive resin composition layer (b) and which comprises a resin and carbon black, is ablatable with an infrared laser, and is a layer shielding a light beam other than infrared ray, wherein the resin in the infrared ray ablation layer (c) contains a copolymer of a monovinyl-substituted aromatic hydrocarbon and a conjugated diene, or a hydrogenated copolymer of a monovinyl-substituted aromatic hydrocarbon and a conjugated diene, and a primary particle diameter of the carbon black contained in the infrared ray ablation layer (c) is 13 nm or larger and 25 nm or smaller.

Dependencies are inferred from the claim text.