Abstract: A composition for forming an adhesive layer which results in strong adhesion force between a substrate and a photosensitive resin layer, and which does not cause transfer of the constituting components to the substrate, a relief printing plate using the same, and a method for manufacturing a relief printing plate are provided. The composition of the present invention comprises (a) a carboxyl group-containing polymer, and (b) an oxazoline group-containing polymer. Adhesive layer 20 formed using the composition of the present invention can be preferably used as an adhesive layer that adheres between substrate 10 and photosensitive resin layer 30 in a relief printing plate.

Abstract: A composition for forming an adhesive layer which results in strong adhesion force between a substrate and a photosensitive resin layer, and which does not cause transfer of the constituting components to the substrate, a relief printing plate using the same, and a method for manufacturing a relief printing plate are provided. The composition of the present invention comprises (a) a carboxyl group-containing polymer, and (b) an oxazoline group-containing polymer. Adhesive layer 20 formed using the composition of the present invention can be preferably used as an adhesive layer that adheres between substrate 10 and photosensitive resin layer 30 in a relief printing plate.

Abstract: A water-soluble photopolymer composition for flexographic printing is provided which can be water developed and can form a photosensitive original printing plate for flexographic printing having a good flexibility and impact resilience as well as an adequate Shore hardness value. The water-soluble photopolymer composition for flexographic printing contains a water-soluble resin component (A), a photopolymerizable monomer (B) and a photopolymerization initiator (C), in which the water-soluble resin component (A) includes a first partially saponified polyvinyl acetate having a saponification degree ranging from 20 to 70 mole % (A1) and a second partially saponified polyvinyl acetate having a saponification degree ranging from 70 to 95 mole % (A2).