Process for preparing photopolymerized elastomeric printing plates not displaying surface stickiness.

摘要

A process for removing the stickiness on the surface of a photopolymerized elastomeric printing plate which comprises exposing to light having a wavelength of not longer than about 300 nm, a photopolymerized elastomeric printing plate having been obtained by exposing a photopolymerizable composition containing, as the essential components, (a) a solvent-soluble polymer having polymeric segments of a conjugated diene monomer in its main chain, (b) at least one ethylenically unsaturated compound and (c) a photopolymerization initiator to imagewise irradiation and removing unhardened areas of the plate.