| 摘要 |
PURPOSE:To obtain a negative type photosensitive resin capable of giving a flexible printing plate having superior resistance against plate wear and printing aptitude and especially suitable for use as a negative type photosensitive resin for relief printing. CONSTITUTION:This negative type photosensitive resin contains a vinyl alcohol- based polymer (A) etherified with lower alkylol (meth)acrylamide, a condensation product (B) of urea, thiourea or a lower alkyl or lower alkylol deriv. thereof and lower alkylol (meth)acrylamide, 7-25C polyethylene glycol di(meth)acrylate (C) and a photopolymn. initiator (D). |
