PHOTOPOLYMERISABLE MATERIALS FOR USE IN PRODUCING SCREEN PRINTING STENCILS

摘要

"PHOTOPOLYMERISABLE MATERIALS FOR USE IN PRODUCING SCREEN PRINTING STENCILS" Aqueous compositions useful in making stencils for screen printing comprise a solution of an unsaturated prepolymer dispersed in an aqueous solution of a colloid, and a photo-initiator. Such compositions may be coated on suitable support sheets to produce photosensitive sheets useful for making stencils for screen printing by the direct, indirect, or direct/indirect methods.