WATER-DEVELOPABLE PHOTOSENSITIVE RESIN COMPOSITION FOR FLEXOGRAPHIC PRINTING, AND PHOTOSENSITIVE RESIN ORIGINAL PLATE FOR FLEXOGRAPHIC PRINTING OBTAINED FROM SAME

摘要

The present invention aims to provide a high-quality photosensitive resin composition for a flexographic printing original plate which not only exhibits a reduced adhesion of dust, dirt, and paper powder to a relief and a good resistance to a UV ink but also allows a storage of the printing original plate for a long period of time, even if this plate is a plate in a low hardness to be used for a flexographic printing. According to the present invention, there is provided a water-developable photosensitive resin composition for flexographic printing, characterized in that, it contains at least a polyamide and/or a polyamide block copolymer (a), a cross-linking agent having one or more unsaturated group (s) (b), a photo-polymerization initiator (c), and a fatty acid ester (d), wherein the fatty acid ester (d) has two or more hydroxyl groups and 11 to 23 carbon atoms in a molecule, and wherein a content of the fatty acid ester (d) in the photosensitive resin composition is 0.2 to 6% by weight.