PHOTOSENSITIVE RESIN COMPOSITION

摘要

PURPOSE:To obtain a photosensitive resin composition good in compatibility among each constituent composing said composition, superior in printing resistance and solvent resistance, and besides, capable of forming a printing plate good in flexibility and elasticity by using saturated polyester having alkali metal sulfonate as the water soluble resin of a basic material. CONSTITUTION:The photosensitive resin composition is composed essentially of (A) 100pts.wt. of the water-soluble saturated polyester having an alkali metal salt type sulfonate group; (B) usually 5-200pts.wt. of a photopolymerizable unsaturated compound; and (C) usually 0.01-5pts.wt. of a photopolymerization initiator per 100pts.wt. of (A) + (B). This composition is usually formed into a sheet or the like and used as the photosensitive resin printing plate.