Photosensitive material and method for making color-proofing films

Abstract

A photosensitive material for making color-proofing films for multicolor printing is described, with A) a transparent flexible support of plastic, B) a photopolymerizable layer on (A) which contains B1) a polymeric binder, B2) a compound polymerizable by a flee-radical mechanism, B3) a compound which is capable of initiating the polymerization of (B2) under the action of actinic light and B4) a dye or a color pigment in a primary color of the multicolor print, and C) a thermoplastic adhesive layer which comprises at least one polymer which contains units (C1) with aliphatic side chains having at least 5 carbon atoms. The material is processed by laminating to an image receptor sheet, exposure and peeling apart of support and image receptor sheet, the unexposed layer areas remaining together with the adhesive layer on the image receptor sheet. These steps are repeated with at least one further image in primary colors. The material provides for a reduction of the background stain in the non-image areas.

Dependencies are inferred from the claim text.