Light-sensitive resin original printing plate for letterpress printing

Abstract

A photosensitive resin printing original plate for letterpress printing having a photosensitive resin layer formed of a photosensitive resin composition containing at least a polymer compound (A), a dibasic acid diester (B) represented by the following general formula (I), a photopolymerizable compound (C), and a photopolymerization initiator (D), in which the content of the dibasic acid diester (B) in the photosensitive resin composition is 2.5 to 15 mass %: (where R1 represents a divalent aliphatic hydrocarbon group having 2 to 8 carbon atoms, a divalent aromatic hydrocarbon group having 6 to 14 carbon atoms, or a divalent aliphatic cyclic hydrocarbon group having 4 to 14 carbon atoms, and R2 and R3 may be the same as or different from each other and each represents a linear or branched aliphatic hydrocarbon group having 1 to 12 carbon atoms).

Dependencies are inferred from the claim text.