| abstract |
Infrared ray removable with an infrared laser having characteristics such as excellent adhesion to a photosensitive resin layer, handleability during plate making, good infrared laser drawing properties, solubility in a developing solvent for flexographic printing plates, etc. Provided is a photosensitive resin laminate for flexographic printing plates provided with an ablation layer. A support layer (A) and a photosensitive resin layer (B) containing a thermoplastic elastomer, a polymerizable unsaturated monomer, and a photopolymerization initiator provided on the support layer (A). And an infrared ablation layer (C) that is provided on the photosensitive resin layer (B) and can be removed by an infrared laser and shields 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 to 5,000 and a softening point of 60 ° C. to 200 ° C., and an infrared absorbing material The photosensitive resin laminated body for flexographic printing plates containing (c3). [Selection figure] None |