Method of preparing screen printing stencils using novel...

Details Method of preparing screen printing stencils using novel... Method of preparing screen printing stencils using novel...

C - Chemistry, Metallurgy

08

L

96/1, 400/2012,

C08L 53/00 (2006.01) B41C 1/14 (2006.01) B41M 1/12 (2006.01) G03F 7/032 (2006.01) G03F 7/038 (2006.01) G03F 7/12 (2006.01)

Patent

CA 1133170

ABSTRACT Screen printing stencils are prepared by affixing to a printing screen substrate an indicia-defining, ultraviolet- sensitive coating and cross-linking the coating by exposure to ultraviolet radiation. The coating compositions are comprised of copolyacrylate/polyurethane block copolymers in which the copolyacrylate blocks are copolymers of at least one hydroxy- containing acrylate and at least one acrylate which is partially substituted with bromine or iodine. Screen printing stencils are provided which are compatible with both water-based and oil- based inks. The disclosed screen printing stencils are used in improved screen-printing methods.

294828

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