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    Electrographic toner and method of manufacturing same
    1.
    发明公开
    Electrographic toner and method of manufacturing same 失效
    电影摄影师Toner und Herstellungsverfahren

    公开(公告)号：EP1632815A2

    公开(公告)日：2006-03-08

    申请号：EP05023469.9

    申请日：1998-02-12

    申请人： SHARP KABUSHIKI KAISHA

    发明人： Akazawa, Yoshiaki ,  Murakami, Toshihiko ,  Imafuku, Tatuo ,  Ouchi,Takaki ,  Morinishi, Yasuharu ,  Ogawa, Satoshi ,  Nakamura, Tadashi ,  Nagahama, Hitoshi ,  Ishida, Toshihisa

    IPC分类号： G03G9/08

    CPC分类号： G03G9/081 ,  G03G9/0821 ,  G03G9/0825 ,  G03G9/0827 ,  G03G9/08711 ,  G03G9/093 ,  G03G9/09307 ,  G03G9/09321 ,  G03G9/0935 ,  G03G9/09364 ,  G03G9/09392

    摘要： An electrophotographic toner is made up of toner particles composed of irregularly-shaped core particles made chiefly of binder resin, and surface-modifying fine particles which are first dispersed over and attached to the surface of the core particles, and then affixed or formed into a film thereon. The BET specific surface area, based on N 2 adsorption, of the toner particles is less than 0.64 times the BET specific surface area of the core particles and surface-modifying fine particles combined together. Further, this value is 1.07 times the BET specific surface area of hypothetical toner particles which are perfect spheres. Consequently, the toner is not prone to problems such as filming, toner scattering, and fogging which are caused by peeling, separation, etc. of the surface-modifying fine particles, nor to poor cleaning due to spherical toner particles. Further, since the toner is manufactured with a quantitative grasp of the state of modification of the surface of the core particles by the surface-modifying fine particles, it is a toner in a stable state.

    摘要翻译： 电子照相调色剂由主要由粘合剂树脂制成的不规则形状的核心颗粒和表面改性微粒组成的调色剂颗粒组成，其首先分散在核颗粒的表面上并附着到核颗粒的表面上，然后固定或形成为 膜上。 基于N 2吸附的调色剂颗粒的BET比表面积小于芯颗粒和表面改性微粒组合在一起的BET比表面积的0.64倍。 此外，该值是作为完美球体的假想调色剂颗粒的BET比表面积的1.07倍。 因此，调色剂不容易出现由表面改性微粒的剥离，分离等引起的成膜，调色剂飞散和起雾等问题，也不会由于球形调色剂颗粒导致差的清洁。 此外，由于调色剂通过表面改性微粒定量地掌握核心颗粒的表面的状态而被制造，所以它是处于稳定状态的调色剂。