发明授权
- 专利标题: Electrophotographic photosensitive material suitable for offset printing and lithography and process for production thereof
- 专利标题(中): 适用于胶版印刷和光刻的电子照相感光材料及其生产方法
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申请号: US794130申请日: 1977-05-05
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公开(公告)号: US4168165A公开(公告)日: 1979-09-18
- 发明人: Yoshiaki Kato , Akira Fushida , Yasuo Ueda , Yasusuke Tohi , Tatsuo Aizawa
- 申请人: Yoshiaki Kato , Akira Fushida , Yasuo Ueda , Yasusuke Tohi , Tatsuo Aizawa
- 申请人地址: JPX Osaka
- 专利权人: Mita Industrial Company Limited
- 当前专利权人: Mita Industrial Company Limited
- 当前专利权人地址: JPX Osaka
- 优先权: JPX51-54826 19760515
- 主分类号: G03G13/28
- IPC分类号: G03G13/28 ; B41N1/14 ; G03G5/10 ; G03G5/14 ; G03G5/087
摘要:
An electrophotographic photosensitive material suitable for offset printing and lithography comprising a flexible substrate, an electroconductive back coat layer formed on one surface of the substrate, an electroconductive intermediate layer formed on the other surface of the substrate and a photoconductive layer formed on the intermediate layer, said photoconductive layer being composed of a fine powder of a photoconductor dispersed in an electrically insulating resin, wherein said intermediate layer is composed of a composition comprising (A) an acrylic resin, (B) a vinyl acetate polymer having a degree of polymerization of 100 to 1700 and (C) a resinous conducting agent, in said composition the weight ratio of acrylic resin (A)/vinyl acetate polymer (B) is in the range of 4/1 to 10/1 and the amount of the conducting agent (C) is 20 to 100 parts by weight per 100 parts by weight per 100 parts by weight of the sum of the components (A) and (B), said intermediate layer has such a multi-layer distribution structure that a combination of the vinyl acetate polymer and the acrylic resin is predominantly distributed in the surface portion falling in contact with the photoconductive layer, and the photoconductive layer is bonded to the intermediate layer through said surface portion.
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