| 摘要 |
<p>A regenerable stencil printing plate is provided, which can be repeatedly used in master making and printing. The stencil printing plate comprises a film made of a polymeric material that shrinks in response to a stimulus selected from heat and light, and numerous fine apertures are formed in the film in cross sectional direction thereof. Preferably, the polymeric material is mainly composed of a polymer selected from acrylamide based polymers, vinyl ether based polymers, and oxide based polymers. Stencil printing is performed by providing the film, giving the above stimulus to the film in such a manner that a desired image is traced on the film to expand said apertures selectively at sites to which said stimulus is given, and allowing an image forming material to pass through the thus expanded apertures to transfer the image forming material to a recording medium. The stencil printing plate can constitute an outer circumferentical surface of an ink-permeable cylindrical printing drum used in a conventional stencil printing apparatus. The plate can be regenerated by a means for giving the plate a stimulus capable of expanding the polymeric material to narrow the expanded apertures of the plate.</p> |
