Process for bromine surface treatment of flexographic...

Details Process for bromine surface treatment of flexographic... Process for bromine surface treatment of flexographic...

G - Physics

03

F

96/250

G03F 7/40 (2006.01)

Patent

CA 1174891

TITLE PROCESS FOR SURFACE TREATMENT OF FLEXOGRAPHIC PRINTING PLATES CONTAINING BUTADIENE/ACRYLONITRILE COPOLYMERS ABSTRACT OF THE DISCLOSURE Process for providing improved solvent resistant surfaces of relief flexographic printing plates prepared by imagewise exposure and liquid development of the unexposed areas of a layer of photosensitive elastomeric composition comprising a high molecular weight butadiene/acrylonitrile copolymer and a monomeric compound wherein, after drying, the developed surface is in either order (1) postexposed to actinic radiation, and (2) contacted with 0.01 to 3.5% by weight aqueous bromine solution for about 15 seconds to 20 minutes.

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