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14 条记录 (耗时 0.014 秒)

    Electrophotographic photoreceptor, process for production thereof, and image-forming apparatus using same
    12.
    发明授权
    Electrophotographic photoreceptor, process for production thereof, and image-forming apparatus using same 有权
    电子照相感光体及其制造方法以及使用其的图像形成装置

    公开(公告)号：US6136485A

    公开(公告)日：2000-10-24

    申请号：US188342

    申请日：1998-11-09

    申请人： Kazuya Ishida ,  Satoshi Katayama ,  Takahiro Teramoto ,  Akihiko Kawahara ,  Kazushige Morita ,  Tomoko Kanazawa

    发明人： Kazuya Ishida ,  Satoshi Katayama ,  Takahiro Teramoto ,  Akihiko Kawahara ,  Kazushige Morita ,  Tomoko Kanazawa

    IPC分类号： G03G5/05 ,  C08K3/22 ,  C08L29/14 ,  G03G5/14

    CPC分类号： G03G5/144 ,  G03G5/142

    摘要： The object of the invention is to provide a highly characteristic and lesser defective image using an electrophotographic photoreceptor which can be produced with a better coating property and which is highly sensitive and hardly loses the electrostatic stability during repeated use. A water-soluble or water/alcohol-soluble polyvinyl acetal and an inorganic pigment are involved in an underlayer provided between a conductive support and a photoconductive layer. Particularly, it is favorable to use titanium oxide as the inorganic pigment, make the ratio of polyvinyl acetal/titanium oxide 1/9-9/1 by weight, make the underlayer 0.5-5 .mu.m in thickness, use the titanium oxide of which the surface is treated with alumina, use the titanium oxide of which the titanium oxide component is 95% by weight or lower and of which the surface is treated with alumina, use the polyvinyl acetal of which the sodium ion concentration is 40 ppm or lower, and use the photo-conductive layer which contains a vinyl chloride-vinyl acetate type copolymer. As for a dispersing medium for coating the underlayer, water/alcohol=1/9-7/3 (ratio by weight) is selected. The aforementioned photoreceptor is applied to an image-forming apparatus using an inversion development process.

    摘要翻译： 本发明的目的是提供一种使用电子照相感光体的高度特征和较小的缺陷图像，该电子照相感光体可以以更好的涂层性能制造，并且在反复使用中高度敏感并且几乎不损失静电稳定性。 水溶性或水/醇可溶性聚乙烯醇缩醛和无机颜料参与设置在导电载体和光电导层之间的底层。 特别是，优选使用氧化钛作为无机颜料，使聚乙烯醇缩醛/氧化钛的比例为1 / 9-9 / 1，使底层的厚度为0.5-5μm，使用其中的氧化钛 用氧化铝处理表面，使用氧化钛成分为95重量％以下的氧化钛，其表面用氧化铝处理，使用钠离子浓度为40ppm以下的聚乙烯醇缩醛， 并使用含有氯乙烯 - 乙酸乙烯酯型共聚物的光导层。 对于用于涂覆底层的分散介质，选择水/醇= 1 / 9-7 / 3（重量比）。 使用反转显影处理将上述感光体应用于图像形成装置。

    Electrophotographic photoconductor and method of producing same
    14.
    发明授权
    Electrophotographic photoconductor and method of producing same 失效
    电子照相感光体及其制造方法

    公开(公告)号：US5958638A

    公开(公告)日：1999-09-28

    申请号：US99039

    申请日：1998-06-18

    申请人： Satoshi Katayama ,  Takahiro Teramoto ,  Kiyofumi Morimoto ,  Satoshi Machino ,  Tatsuhiro Morita ,  Tomoko Kanazawa

    发明人： Satoshi Katayama ,  Takahiro Teramoto ,  Kiyofumi Morimoto ,  Satoshi Machino ,  Tatsuhiro Morita ,  Tomoko Kanazawa

    IPC分类号： G03G5/06 ,  G03G5/14

    CPC分类号： G03G5/0659 ,  G03G5/142 ,  G03G5/144

    摘要： An object of the invention is to provide an electrophotographic photoconductor featuring uniform chargeability to a predetermined potential, low residual potential and excellent stability in the operating environment and repeated use thereof, as well as a method of producing the same. An undercoat layer between a substrate and a photosensitive layer is formed by the use of a coating fluid for undercoat layer containing a coupling agent having an unsaturated bond, a metal oxide, a binder and a mixture solvent. The coupling agent increases affinity of the metal oxide for the binder so that the coating fluid does not suffer the aggregation of the metal oxide or gelation thereof, presenting homogeneity and excellent can-stability. Thus is obtained a uniform undercoat layer. A photoconductor having this undercoat layer is adapted to be uniformly charged to a predetermined potential and to suppress the rise of residual potential and particularly the rise of residual potential due to a use thereof under low-temperature, low-humidity conditions or the repeated use thereof over an extended period of time, thus offering a high photosensitivity in a stable manner.

    摘要翻译： 本发明的一个目的是提供一种电子照相感光体及其制造方法，该电子照相感光体具有预定电位的均匀带电性，低残留电位和优异的操作环境稳定性及其重复使用。 通过使用含有具有不饱和键的偶联剂，金属氧化物，粘合剂和混合溶剂的底涂层用涂布液，形成基材和感光层之间的底涂层。 偶联剂增加金属氧化物对粘合剂的亲和力，使得涂布液不会发生金属氧化物的凝集或其凝胶化，具有均匀性和优异的罐稳定性。 得到均匀的底涂层。 具有该底涂层的感光体适于均匀地充电至预定电位，并且抑制残留电位的上升，特别是由于在低温，低湿度条件下使用而导致的残留电位的上升，或者其重复使用 延长时间，从而以稳定的方式提供高光敏性。