Abstract: A photosensitive resin printing plate precursor includes at least a support and a photosensitive resin layer, wherein the photosensitive resin layer contains at least a polymer (A) having an ethylenic double bond, a compound (B) having an ethylenic double bond, and a photopolymerization initiator (C); wherein the photosensitive resin layer includes at least a first photosensitive resin layer including a printing surface, and a second photosensitive resin layer including the interior of the photosensitive resin layer; and wherein the ethylenic double bond equivalent F1 (g/eq) of component (A) in the first photosensitive resin layer is higher than the ethylenic double bond equivalent F2 (g/eq) of component (A) in the second photosensitive resin layer.

Abstract: A photosensitive resin composition and a photosensitive resin printing plate precursor which allow development that uses a solution containing a lower alcohol and which are excellent in abrasion resistance and excellent in the ink wiping characteristics of a plate surface exhibited when the plate surface is squeegeed with a blade of a pad printer are provided. The photosensitive resin composition is characterized by containing (A) an inorganic fine particle whose average particle diameter is greater than or equal to 0.5 ?m and less than or equal to 4 ?m and whose sphericity is greater than or equal to 0.9, (B) a polyamide having in its molecular main chain an aliphatic ring and/or a skeleton represented by general formula (1), (C) a compound having an ethylenic double bond, and (D) a photopolymerization initiating agent.

Abstract: A photosensitive resin composition and a photosensitive resin printing plate precursor which allow development that uses a solution containing a lower alcohol and which are excellent in abrasion resistance and excellent in the ink wiping characteristics of a plate surface exhibited when the plate surface is squeegeed with a blade of a pad printer are provided. The photosensitive resin composition is characterized by containing (A) an inorganic fine particle whose average particle diameter is greater than or equal to 0.5 ?m and less than or equal to 4 ?m and whose sphericity is greater than or equal to 0.9, (B) a polyamide having in its molecular main chain an aliphatic ring and/or a skeleton represented by general formula (1), (C) a compound having an ethylenic double bond, and (D) a photopolymerization initiating agent.

Abstract: A resin laminate having a structure in which a support, an intermediate layer and an image-forming resin layer are laminated in the order mentioned, the resin laminate including (A) a cationic polymer in the image-forming resin layer, and (B) an anionic polymer in the intermediate layer in contact with image-forming resin layer, wherein the (B) anionic polymer is a modified and partially saponified polyvinyl acetate in which a carboxyl group is introduced to a polymer side chain using a hydroxyl group of a partially saponified polyvinyl acetate as an origin of introduction.

Abstract: [Problem] To provide a photosensitive resin composition which exhibits excellent relief image reproducibility and improved toughness and printing durability, and a photosensitive resin printing plate precursor. [Solution] A photosensitive resin composition which is characterized by containing (A) a modified and partially saponified poly(vinyl acetate) having a reactive group in a side chain, (B) a polyamide having a basic nitrogen atom, (C) a compound having a molecular weight of 300 or lower, a 5-7 membered ring and a polymerizable ethylenic double bond, and (D) a photopolymerization initiator.

Abstract: A resin laminate having a structure in which a support, an intermediate layer and an image-forming resin layer are laminated in the order mentioned, the resin laminate including (A) a cationic polymer in the image-forming resin layer, and (B) an anionic polymer in the intermediate layer in contact with image-forming resin layer, wherein the (B) anionic polymer is a modified and partially saponified polyvinyl acetate in which a carboxyl group is introduced to a polymer side chain using a hydroxyl group of a partially saponified polyvinyl acetate as an origin of introduction.

Abstract: It is an object of the present invention to provide a resin printing plate precursor for laser engraving that is able to form a relief by laser engraving, the relief having excellent image reproducibility, and moreover has toughness and improved printing durability. The present invention is a resin printing plate precursor for laser engraving comprising a substrate and a resin layer on the substrate, the resin layer containing: (A) a modified partially saponified polyvinyl acetate having reactive groups in its side chain; (B) a polyamide having basic nitrogen; (C) a compound having a 5- to 7-membered ring and a polymerizable ethylenic double bond; and (D) a photopolymerization initiator.

Abstract: It is an object of the present invention to provide a resin printing plate precursor for laser engraving that is able to form a relief by laser engraving, the relief having excellent image reproducibility, and moreover has toughness and improved printing durability. The present invention is a resin printing plate precursor for laser engraving comprising a substrate and a resin layer on the substrate, the resin layer containing: (A) a modified partially saponified polyvinyl acetate having reactive groups in its side chain; (B) a polyamide having basic nitrogen; (C) a compound having a 5- to 7-membered ring and a polymerizable ethylenic double bond; and (D) a photopolymerization initiator.

Abstract: [Problem] To provide a photosensitive resin composition which exhibits excellent relief image reproducibility and improved toughness and printing durability, and a photosensitive resin printing plate precursor. [Solution] A photosensitive resin composition which is characterized by containing (A) a modified and partially saponified poly(vinyl acetate) having a reactive group in a side chain, (B) a polyamide having a basic nitrogen atom, (C) a compound having a molecular weight of 300 or lower, a 5-7 membered ring and a polymerizable ethylenic double bond, and (D) a photopolymerization initiator.