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    DEVELOPING AGENT AND METHOD FOR MANUFACTURING THE SAME
    3.
    发明申请
    DEVELOPING AGENT AND METHOD FOR MANUFACTURING THE SAME 审中-公开
    开发代理及其制造方法

    公开(公告)号：US20090130579A1

    公开(公告)日：2009-05-21

    申请号：US12255380

    申请日：2008-10-21

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

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

    IPC分类号： G03G9/08 ,  G03G9/087

    CPC分类号： G03G9/0804 ,  G03G9/08795 ,  G03G9/08797

    摘要： A method for manufacturing a developing agent includes forming a toner particle by adding an aggregating agent to a dispersion containing fine particles containing a binder resin and a colorant to allow aggregation and melt adhesion to occur, wherein the pH of the dispersion satisfies the formula (1) below, when denoting pH before the addition of the aggregating agent by pH(A), the pH of the dispersion after the addition of the aggregating agent by pH(B), and the pH of the dispersion after the melt adhesion by pH(C): 0.90≧pH(C)/pH(A)≧0.25 and 1.00≧pH(C)/pH(B)≧0.30  (1).

    摘要翻译： 制造显影剂的方法包括通过在包含含有粘合剂树脂和着色剂的细颗粒的分散体中加入聚集剂形成调色剂颗粒，以使聚集和熔融粘附发生，其中分散体的pH满足式（1 ），在通过pH（A）添加聚集剂之前表示pH值时，通过pH（B）添加聚集剂后的分散体的pH以及通过pH熔融粘合后的分散体的pH（ C）：<？in-line-formula description =“In-line formula”end =“lead”？> 0.90> = pH（C）/ pH（A）> = 0.25和1.00> = pH（C）/ pH （B）> = 0.30（1）。<？in-line-formula description =“In-line Formulas”end =“tail”？>

    DEVELOPING AGENT AND METHOD FOR PRODUCING THE SAME
    7.
    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。