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    • 2. 发明申请
    • DEVELOPING ROLLER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS
    • 开发滚子,过程盒和电子绘图设备
    • US20120195631A1
    • 2012-08-02
    • US13438580
    • 2012-04-03
    • Masaki YamadaTakashi KusabaKunimasa KawamuraYuji SakuraiToru Ishii
    • Masaki YamadaTakashi KusabaKunimasa KawamuraYuji SakuraiToru Ishii
    • G03G21/18G03G15/08
    • G03G15/0818Y10T29/49544
    • A developing roller used for formation of an electrophotographic image with high quality is provided in which even in storage and use under a high temperature and high humidity environment, peel-off of a surface layer from an elastic layer is suppressed, and a toner hardly adheres to the surface of the developing roller.The developing roller is a developing roller including a mandrel, an elastic layer provided on the mandrel and containing a cured material of an addition curable-type dimethyl silicone rubber, and a surface layer containing a urethane resin that covers the circumferential surface of the elastic layer, wherein the urethane resin has a structure represented by the following formula (1), and one or both structures selected from a structure represented by the following formula (2) and a structure represented by the following formula (3) between two adjacent urethane linkages.
    • 提供了用于形成高质量电子照相图像的显影辊,其中即使在高温高湿环境下储存和使用时,表面层与弹性层的剥离也被抑制,并且调色剂几乎不粘附 到显影辊的表面。 显影辊是显影辊,其包括心轴,设置在心轴上并包含可固化型二甲基硅橡胶的固化材料的弹性层,以及包含覆盖弹性层的周向表面的聚氨酯树脂的表面层 其中所述聚氨酯树脂具有由下式(1)表示的结构,以及选自由下式(2)表示的结构的一种或两种结构和由下式(3)表示的结构在两个相邻的氨基甲酸酯键之间 。
    • 3. 发明申请
    • PROCESS FOR PRODUCING ROLLER FOR ELECTROPHOTOGRAPHY
    • 生产滚筒用于电子显微镜的方法
    • US20110183080A1
    • 2011-07-28
    • US13081044
    • 2011-04-06
    • Kunimasa KawamuraYuji SakuraiShohei Urushihara
    • Kunimasa KawamuraYuji SakuraiShohei Urushihara
    • C08J7/18
    • G03G15/0233G03G15/0291G03G15/0818G03G15/1685G03G15/2057G03G21/0058
    • An object of the present invention is to provide a production process of a roller for an electrophotography, having a surface layer the electric resistance of which has been controlled by corona discharge treatment while keeping any pinholes from coming about on the surface. A production process of a roller for an electrophotography, said roller comprising a conductive mandrel and a conductive surface layer comprising a resin and carbon black dispersed in the resin, the process having the following steps (1) to (3): (1) forming a resin layer comprising a resin and carbon black dispersed therein on the circumference of the conductive mandel; (2) attaching silica particles on the surface of the resin layer; and (3) subjecting corona discharge treatment to the surface of the resin layer on which the silica particles are attached.
    • 本发明的目的是提供一种用于电子照相的辊的制造方法,其具有通过电晕放电处理控制其电阻的表面层,同时保持任何针孔在表面上。 一种用于电子照相的辊的制造方法,所述辊包括导电心轴和分散在树脂中的树脂和炭黑的导电表面层,该方法具有以下步骤(1)至(3):(1)形成 树脂层,其包含分散在导电扁平体的圆周上的树脂和炭黑; (2)将二氧化硅颗粒附着在树脂层的表面上; 和(3)对安装有二氧化硅颗粒的树脂层的表面进行电晕放电处理。