Process for producing photo-curable composite materials useful for preparing stencils
AssigneeSumitomo Chemical Company, Limited
InventorsTakezo Sano, Haruo Inoue, Akihiro Furuta
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Abstract
An improved process for producing a photo-curable composite material using a liquid photo-curable resin, which comprises holding a liquid photo-curable resin with a screen material between two films, at least one of the films having photo-transmitting properties, and passing the films holding the liquid photo-curable resin and the screen material through a gap (e.g. between two rollers). The process of the present invention can produce photo-curable composite materials useful for preparing various stencils for screen printing, textile printing, or the like at a low cost and with less production of defects.
Claims3
A continuous process for producing a photo-curable composite material useful for preparing stencils which comprises applying a liquid photo-curable resin onto a screen material having a thickness of about 20 microns to 1 mm., by passing said screen as a continuously fed sheet of stock material through a vessel containing said liquid photo-curable resin, introducing said screen material between two films such that the films hold the resin and screen material to produce a layered configuration, at least one of said films having photo-transmitting properties capable of transmitting actinic radiation and a thickness of about 5 to 50 microns, the remaining film having a thickness of about 10 to 500 microns, and passing said resulting layered configuration through transport means defining a gap having a size of about 50 microns to 10 mm to produce said composite material having a fixed thickness.
Dependencies are inferred from the claim text.