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    • 1. 发明授权
    • Method of producing a printing plate
    • 印版的制造方法
    • US5550002A
    • 1996-08-27
    • US415326
    • 1995-04-03
    • Yasuo KojimaNobumasa SasaTakeo Akiyama
    • Yasuo KojimaNobumasa SasaTakeo Akiyama
    • G03F7/00B41N3/03G03F7/038G03F7/16G03F7/34
    • B41N3/034G03F7/0384G03F7/168G03F7/346
    • A method of producing a printing plate is disclosed, which comprises the steps of a) providing, on an aluminium support, a photo-hardenable light-sensitive layer on a 50 .mu.m or less thick film to obtain a light-sensitive plate, the surface on the light-sensitive layer side of said support is electrolytically etched in a nitric acid solution to have an average surface roughness R.sub.a of 0.1 to 0.6 .mu.m; b) imagewise exposing the photo-hardenable photosensitive layer of the light-sensitive plate; c) applying heat or pressure to the exposed light-sensitive plate; d) removing the exposed light-sensitive layer from the light-sensitive plate to leave an unexposed light-sensitive layer on the aluminium support; and e) overall exposing the unexposed light-sensitive layer to harden the same.
    • 公开了一种制造印版的方法,其包括以下步骤:a)在铝载体上,在50μm或更薄的薄膜上提供可光硬化的感光层以获得感光板, 在硝酸溶液中对所述载体的感光层侧的表面进行电解蚀刻,其平均表面粗糙度Ra为0.1〜0.6μm; b)成像曝光感光板的光硬化感光层; c)向暴露的感光板施加热或压力; d)从感光板上去除曝光的感光层,在铝支架上留下未曝光的感光层; 和e)使未曝光的感光层全面曝光以使其硬化。