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    DEVELOPING AGENT AND METHOD FOR PRODUCING THE SAME
    2.
    发明申请
    DEVELOPING AGENT AND METHOD FOR PRODUCING THE SAME 审中-公开
    开发代理及其生产方法

    公开(公告)号：US20100209840A1

    公开(公告)日：2010-08-19

    申请号：US12638145

    申请日：2009-12-15

    申请人： Masahiro Ikuta ,  Takayasu Aoki ,  Takashi Urabe ,  Tsuyoshi Itou ,  Satoshi Araki ,  Motonari Udo ,  Takafumi Hara

    发明人： Masahiro Ikuta ,  Takayasu Aoki ,  Takashi Urabe ,  Tsuyoshi Itou ,  Satoshi Araki ,  Motonari Udo ,  Takafumi Hara

    IPC分类号： G03G9/12 ,  G03G5/00

    CPC分类号： G03G9/09392 ,  G03G9/0804 ,  G03G9/08797 ,  G03G9/09328 ,  G03G9/09371

    摘要： As a first dispersion liquid containing first fine particles and a second dispersion liquid containing second fine particles, those satisfy the relationship represented by the following formula (1) are used, and these two dispersion liquids are mixed with each other, and an aggregating agent and a pH adjusting agent are added thereto in sequence, whereby encapsulation is achieved by selective formation of core particles through aggregation of the first fine particles and shells through aggregation of the second fine particles. 15 mV≧|Z2−Z1|≧5 mV  (1) In the formula, Z1 and Z2 represent zeta potentials of the first dispersion liquid and the second dispersion liquid, respectively, measured when aluminum sulfate is added to each dispersion liquid in an amount of 1% by weight based on the solid content in each dispersion liquid.

    摘要翻译： 作为含有第一细小颗粒的第一分散液和含有第二细颗粒的第二分散液，使用满足由下式（1）表示的关系的第二分散液，将这两种分散液彼此混合，并将聚集剂和 依次加入pH调节剂，由此通过使第一细颗粒和壳通过第二细颗粒的聚集而聚集而选择性形成核心颗粒来实现包封。 15mV≥| Z2-Z1 |≥5mV（1）在式中，Z1和Z2分别表示当将各种分散液中的硫酸铝加入量时测定的第一分散液和第二分散液的ζ电位 相对于各分散液中的固体成分为1重量％。

    DEVELOPING AGENT AND METHOD FOR PRODUCING THE SAME
    10.
    发明申请
    DEVELOPING AGENT AND METHOD FOR PRODUCING THE SAME 审中-公开
    开发代理及其生产方法

    公开(公告)号：US20110014558A1

    公开(公告)日：2011-01-20

    申请号：US12832380

    申请日：2010-07-08

    申请人： Masahiro Ikuta ,  Takayasu Aoki ,  Takashi Urabe ,  Tsuyoshi Itou ,  Motonari Udo ,  Satoshi Araki ,  Takafumi Hara ,  Yasuhito Noda ,  Taishi Takano ,  Yasuo Goto ,  Junichi Ishikawa

    发明人： Masahiro Ikuta ,  Takayasu Aoki ,  Takashi Urabe ,  Tsuyoshi Itou ,  Motonari Udo ,  Satoshi Araki ,  Takafumi Hara ,  Yasuhito Noda ,  Taishi Takano ,  Yasuo Goto ,  Junichi Ishikawa

    IPC分类号： G03G9/08

    CPC分类号： G03G9/0806 ,  G03G9/0823 ,  G03G9/0827 ,  G03G9/08755 ,  G03G9/0918

    摘要： According to one embodiment, a method for producing a developing agent including aggregating fine particles of a toner material containing a binder resin and a coloring agent in a dispersion liquid in which the fine particles are dispersed in an aqueous medium to form aggregated particles, and washing the aggregated particles and drying the washed aggregated particles, forming toner particles is provided. An electrical conductivity of the toner particles is measured by a toner electrical conductivity evaluation method. A sample toner is prepared by adhering an additive to surfaces of the toner particles, and a content ratio of a sodium element to a carbon element in a region to which the additive is not adhered of the toner is measured. The washing of the toner particles is repeated until each of the measurement values becomes a predetermined reference value or less.

    摘要翻译： 根据一个实施方案，一种生产显影剂的方法，包括在分散液中含有粘合剂树脂和着色剂的调色剂材料的细颗粒，其中细颗粒分散在水性介质中以形成凝集颗粒，并洗涤 提供聚集的颗粒并干燥洗涤的聚集颗粒，形成调色剂颗粒。 通过调色剂导电性评估方法测量调色剂颗粒的电导率。 通过将添加剂粘附到调色剂颗粒的表面，并测量在调色剂未附着添加剂的区域中的钠元素与碳元素的含量比，来制备样品调色剂。 重复调色剂颗粒的洗涤，直到每个测量值变为预定的参考值或更小。