PHOTOSENSITIVE RESIN COMPOSITION FOR SCREEN PRINTING, PHOTOSENSITIVE FILM, AND SCREEN PLATE

摘要

A photosenstive resin composition is prepared by dispersing at least one of a hydrophobic polymer and a mixture of an oil-soluble photopolymerization initiator and a water-insoluble or sparingly water-soluble compound having at least one photoactive, ethylenically unsaturated group in an aqueous solution that contains both a water-soluble polymer and a diazo resin is obtained by condensing a water-soluble salt of an optionally substituted 4-diazodiphenylamine with formaldehyde in the presence of sulfuric acid and phosphoric acid. This photosensitive resin composition gives a photosensitive film having excellent stability over time and a wide exposure latitude. By adding a specific fluorine compound to the photosensitive resin composition, a screen plate has an excellent discharge performance.

主权项

1. A photosensitive resin composition for a screen plate, which is obtained by dispersing, in an aqueous solution containing
(A) a diazo resin and (B) a water-soluble polymer selected from among polyvinyl alcohol and partially saponified polyvinyl alcohol, (C) at least one of (c-1) and (c--2) below:
(c-1) a mixture of an oil-soluble photopolymerization initiator and a water-insoluble or sparingly water-soluble compound having at least one photoactive, ethylenically unsaturated group,(c-2) a polymer emulsion.