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    Toner, two-component developer, and image forming apparatus
    2.
    发明公开
    Toner, two-component developer, and image forming apparatus 有权
    Toner，Zweikomponenten-Entwickler und Bilderzeugungsvorrichtung

    公开(公告)号：EP2639642A1

    公开(公告)日：2013-09-18

    申请号：EP13158739.6

    申请日：2013-03-12

    申请人： Ricoh Company, Ltd.

    发明人： Kojima, Satoshi ,  Nagatomo, Tsuneyasu ,  Satoh, Syouko ,  Uchinokura, Osamu ,  Awamura, Junichi ,  Ogawa, Satoshi ,  Honda, Takahiro ,  Ito, Daisuke ,  Kusahara, Teruki ,  Watanabe, Masaki ,  Inoue, Daisuke

    IPC分类号： G03G9/097

    CPC分类号： G03G9/0825 ,  G03G9/097 ,  G03G9/09708

    摘要： A toner including: toner base particles; and external additive, the toner base particles each comprising binder resin and colorant, wherein the external additive comprises coalesced particles, the coalesced particles are each a non-spherical secondary particle in which primary particles are coalesced together, and an index of a particle size distribution of the coalesced particles is expressed by Formula (1): Db 50 Db 10 ≦ 1.20 where, in a distribution diagram where particle diameters in nm of the coalesced particles are on horizontal axis and cumulative percentages in % by number of the coalesced particles are on vertical axis and in which the coalesced particles are accumulated from those having smaller particle diameters to those having larger particle diameters, Db 50 denotes a particle diameter of the coalesced particle at which the cumulative percentage is 50% by number, and Db 10 denotes a particle diameter of the coalesced particle at which the cumulative percentage is 10% by number.

    摘要翻译： 一种调色剂，包括：调色剂基础颗粒; 和外部添加剂，每个包含粘合剂树脂和着色剂的调色剂基础颗粒，其中外部添加剂包括聚结颗粒，聚结颗粒各自是一次颗粒聚结在一起的非球形二次颗粒，并且粒度分布指数 的聚结粒子由式（1）表示：Db 50 Db 10‰| 1.20其中，在聚结粒子的粒径在水平轴上的累积百分比（以％表示的聚结粒子的数量）的分布图中， 在垂直轴上并且其中聚结的颗粒从具有较小粒径的聚结颗粒聚集到具有较大颗粒直径的粒子的数量，Db 50表示累积百分比为50数量％的聚结颗粒的粒径，Db 10表示 累积百分比为10％的聚结颗粒的粒径。