G - Physics – 03 – F
Patent
G - Physics
03
F
G03F 7/028 (2006.01) G03F 3/10 (2006.01) G03F 7/032 (2006.01)
Patent
CA 2089862
Abstract of the Disclosure A photosensitive material for the production of color proofing films for multicolor printing, having (A) a transparent, flexible film support of plastic, (B) a photopolymerizable layer which contains (B1) a polymeric binder, (B2) a free-radically polymerizable compound, (B3) a compound which is capable of initiating the polymerization of (B2) on exposure to actinic light, and (B4) a dye or a colored pigment in a primary color of multicolor printing, and (C) a thermoplastic adhesive layer having a layer weight of from about 2 to about 30 g/m2 on the photo- sensitive layer, wherein the thermoplastic adhesive layer contains from about 0.01 to about 0.5% by weight of a colorless pigment having a mean particle size which corresponds to from 1 to 100% of the layer thickness. The material is processed by lamination onto an image-receiving material, exposure of the material and peeling apart of film support and image-receiving material, leaving the unexposed layer areas on the image-receiving material together with the adhesive layer. To produce a multicolored image, these steps are repeated with at least one further single-color sheet. The material has higher stability against blocking during lamination and storage.
Maerz Karin
Nuernberger Siefried
Platzer Stephan J. W.
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
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