METHOD OF MANUFACTURING GRID-TEMPLATE SCREEN Russian patent published in 1998 - IPC

FIELD: polygraphy. SUBSTANCE: film material is first manufactured by pouring, onto polyethylene terephthalate carrier, aqueous composition containing 5- 10 wt.% of polyvinyl alcohol and 20-35 wt.% of aqueous dispersion of copolymer of vinylacetate with 2-50 mol % di-(C₂-C₈)-alkyl maleate or 2- 95 mol % ethylene. Resultant layer is dried to form film material, which is rolled on grid preliminarily wetted with ammonium bichromate, dried, exposed, and developed with water. EFFECT: increased resolving power of screen and improved quality of image. 1 tbl