| 摘要 |
<p>Disclosed is a photosensitive surface printing plate material which is suitable for the exposure to a laser beam having a light emission wavelength ranging from 350 to 450 nm, is highly sensitive, and has excellent storage stability. The material has a substrate and a photosensitive layer provided on the substrate, wherein the photosensitive layer comprise a polymerization initiator (A), a polymerizable compound (B) having an ethylenic double bond, a sensitizing dye (C), and a polymeric binder (D). In the photosensitive layer, the polymerizable compound (B) comprises a product of the reaction among (a) a compound represented by the general formula (1), (b) a diisocyanate compound and (c) a (meth)acrylate compound having a hydroxyl group in the molecule. General formula (1): HO-(CH<SUB>2</SUB>)<SUB>n</SUB>-NH-CHR<SUP>1</SUP>R<SUP>2</SUP> wherein R<SUP>1</SUP> and R<SUP>2</SUP> independently represent an alkyl group or an aralkyl group, provided that R<SUP>1</SUP> and R<SUP>2</SUP> may together form a ring; and n is an integer of 1 to 10.</p> |
