Process for the production of a light-sensitive offset...

Details Process for the production of a light-sensitive offset... Process for the production of a light-sensitive offset...

B - Operations, Transporting

41

C

117/23, 101/61

B41C 1/10 (2006.01) G03F 5/16 (2006.01) G03F 7/115 (2006.01)

Patent

CA 1044512

Abstract of the Disclosure In a process for the production of a light-sensitive offset printing plate suitable for the reproduction of halftones in which a light-sensitive coating in a sol- vent is applied to an opaque carrier and dried, a fine- meshed screen is pressed into the coating wet with solvent, and then removed from the coating, whereby relatively thick areas of the copying layer are pulled up by the meshes of the screen resulting in a structured surface of the light-sensitive coating. The screen may be pressed into the wet coating and removed therefrom before it is dried or after the coating is dried and then wetted and softened by a solvent. These offset printing plates are adapted for the reproduction of halftones without screening the light projected on its surface for image- wise exposure.

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