LIQUID PHOTOSENSITIVE RESIN COMPOSITION FOR FLEXOGRAPHIC PRINTING PLATE, FLEXOGRAPHIC PRINTING PLATE, AND METHOD FOR PRODUCING FLEXOGRAPHIC PRINTING PLATE

摘要

PROBLEM TO BE SOLVED: To provide a photosensitive resin composition allowing production of a flexographic printing plate having high impact resilience and high notch/crack resistance.

SOLUTION: The liquid photosensitive resin composition for a flexographic printing plate contains 100 pts.mass of a polyurethane prepolymer (a) with an ethylenically unsaturated group, 10 to 150 pts.mass of an ethylenically unsaturated compound (b), and 0.01 to 10 pts.mass of a photoinitiator (c) and contains 5 to 100 pts.mass of a compound expressed by general formula (1) CH2=CH-CO-O-(C3H6O)n-H, as the ethylenically unsaturated compound (b), relative to 100 pts.mass of the polyurethane prepolymer (a) with the ethylenically unsaturated group. In the general formula (1), n represents an integer in a range of 1 to 20.

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