A water-developable photosensitive resin composition for flexographic printing, and a photosensitive resin original plate for flexographic printing obtained from the composition.

摘要

Although it is a low-hardness plate used for flexographic printing, it is for high-quality flexographic printing original plates that not only reduces the adhesion of dust, dust, and paper dust to the relief and is resistant to UV ink, but also satisfies the long-term storage stability of the printing original plate. A photosensitive resin composition is provided. The present invention contains at least (a) polyamide and / or polyamide block copolymer, (b) cross-linking agent having one or more unsaturated groups, (c) photopolymerization initiator, and (d) fatty acid ester. A water-developable photosensitive resin composition for flexo printing, wherein (d) the fatty acid ester is a fatty acid ester having two or more hydroxyl groups and 24 or 25 carbon atoms in the molecule, and carbon. It is characterized in that it is a fatty acid ester of a compound selected from the fatty acids of the number 12 to 22, and the content of the fatty acid ester (d) in the photosensitive resin composition is 0.2 to 6% by weight.