| 摘要 |
PROBLEM TO BE SOLVED: To provide a photosensitive resin laminate for a flexographic printing plate, which includes an infrared ablation layer that can be removed with an infrared laser, and which has characteristics such as excellent adhesiveness with a photosensitive resin layer, good handling property in a platemaking process, good infrared laser drawing property, and solubility with a developing solvent for a flexographic printing plate.SOLUTION: The photosensitive resin laminate includes: a support layer (A); a photosensitive resin layer (B) which is disposed on the support layer (A) and comprises a thermoplastic elastomer, a polymerizable unsaturated monomer and a photopolymerization initiator; and an infrared ablation layer (C) which is disposed on the photosensitive resin layer (B), can be removed with an infrared laser and blocks non-infrared radiation. The infrared ablation layer (C) comprises syndiotactic 1,2-polybutadiene (c1), a resin (c2) having a number average molecular weight of 500 or more and 5,000 or less and a softening point of 60°C or higher and 200°C or lower, and an infrared-absorbing substance (c3). |
