| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid photosensitive resin composition for a flexographic printing plate which is excellent in ink transferability of a solid image and can achieve excellent impact resistance.SOLUTION: There is provided a liquid photosensitive resin composition for a flexographic printing plate containing an unsaturated prepolymer, a photopolymerization initiator and a plasticizer, wherein the unsaturated prepolymer has (i) a polyurethane structure composed of a diol having a repeating unit in the molecule and diisocyanate, an acrylic group and/or a methacryl group, (ii) has a number average molecular weight of 20,000 to 70,000 and (iii) contains 55 to 90 mass% of a polyester diol composed of dicarboxylic acid and a saturated hydrocarbon diol having 4 to 9 carbon atoms in the diol having a repeating unit in the molecule, and the plasticizer an ester-based plasticizer and/or an ether-based plasticizer composed of an aliphatic carboxylic acid compound. |
