Method of preparing screen printing stencils using novel compoun

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

1978-12-18

1980-06-24

Kimlin, Edward C.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making printing plates

20415914, 20415919, 430284, 430285, 430325, G03C 500, G03C 168

Patent

active

042095824

ABSTRACT:
Screen printing stencils are prepared by affixing to a printing screen substrate an indicia-defining, ultraviolet-sensitive film and cross-linking the film by exposure to ultraviolet radiation. The coating compositions used to form the film comprise copolyacrylate/polyurethane block copolymers, in which the copolyacrylate blocks are copolymers of at least one hydroxy-containing acrylate and at least one acrylate or methacrylate which may be partially substituted with bromine, ultraviolet initiators and cross-linking monomers. 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.

REFERENCES:
patent: 3035004 (1962-05-01), Glavis
patent: 3257476 (1966-06-01), Tobolsky et al.
patent: 3291859 (1966-12-01), Tobolsky
patent: 3459790 (1969-08-01), Smith
patent: 3493500 (1970-02-01), Volk et al.
patent: 3773857 (1973-11-01), Kondo et al.
patent: 3850770 (1973-11-01), Juna et al.
patent: 3865898 (1975-02-01), Tobolsky
patent: 3932401 (1976-01-01), Berg et al.
patent: 3960572 (1976-06-01), Ibata et al.
patent: 4006024 (1977-02-01), Ibata et al.

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