公开(公告)号：US20100310981A1

公开(公告)日：2010-12-09

申请号：US12792132

申请日：2010-06-02

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

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

IPC分类号： G03G9/087 ,  G03G9/08

CPC分类号： G03G9/08795 ,  G03G9/0804 ,  G03G9/081 ,  G03G9/0819 ,  G03G9/08755

摘要： According to one embodiment, a method for producing a developing agent includes pulverizing a mixture in the form of coarse particles of a toner material including a coloring agent and a binder resin by mechanical shearing, aggregating and fusing the resulting fine particles. The solid content concentration in a dispersion liquid including the aggregated particles is from 5.0% to 40.0%, the volume average particle diameter of the aggregated particles is from 1.0 μm to 10.0 μm, and the ratio of the standard deviation to the volume average particle diameter is 30.0% or less.

摘要翻译： 根据一个实施方案，用于生产显影剂的方法包括通过机械剪切来粉碎包括着色剂和粘合剂树脂的调色剂材料的粗颗粒形式的混合物，使所得到的微粒聚集和熔融。 包含凝集粒子的分散液中的固体成分浓度为5.0〜40.0％，凝集粒子的体积平均粒径为1.0〜10.0μm，标准偏差与体积平均粒径的比率 为30.0％以下。

公开(公告)号：US07172845B2

公开(公告)日：2007-02-06

申请号：US10786168

申请日：2004-02-26

申请人： Shuitsu Sato ,  Takashi Urabe ,  Yasuhito Noda ,  Takahito Kabai ,  Yuichi Hori ,  Taishi Takano

发明人： Shuitsu Sato ,  Takashi Urabe ,  Yasuhito Noda ,  Takahito Kabai ,  Yuichi Hori ,  Taishi Takano

IPC分类号： G03G9/06

CPC分类号： G03G9/08782 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09

摘要： Of developing agents each having a binder containing a polyester resin having an acidic value, wax having a softening point higher than that of the binder, and wax having a softening point lower than that of the binder, the acidic value of a black developing agent is made higher than that of a color developing agent.

摘要翻译： 各显影剂各自含有含有酸性值的聚酯树脂的粘合剂，软化点高于粘合剂的蜡，软化点低于粘合剂的蜡，黑色显影剂的酸值为 比彩色显影剂高。

公开(公告)号：US20110262851A1

公开(公告)日：2011-10-27

申请号：US13093169

申请日：2011-04-25

申请人： Taishi Takano ,  Takashi Urabe

发明人： Taishi Takano ,  Takashi Urabe

IPC分类号： G03G9/08

CPC分类号： G03G9/0819 ,  G03G9/0804 ,  G03G9/08795 ,  G03G9/09708

摘要： Disclosed is an electrophotographic toner containing a binder resin, a coloring agent, and a release agent, having a volume average particle diameter of 7 μm or less, and having an acid value per unit surface area SAV (mgKOH/m2) of 0.05 or more but not exceeding 0.2.

摘要翻译： 公开了含有体积平均粒径为7μm以下，粘度树脂，着色剂和脱模剂的电子照相调色剂，每单位表面积SAV（mgKOH / m 2）的酸值为0.05以上 但不超过0.2。

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。

公开(公告)号：US20120322001A1

公开(公告)日：2012-12-20

申请号：US13491984

申请日：2012-06-08

申请人： Taishi Takano ,  Tsuyoshi Itou

发明人： Taishi Takano ,  Tsuyoshi Itou

IPC分类号： G03G9/00 ,  G03G15/08

CPC分类号： G03G9/0926 ,  G03G9/08711 ,  G03G9/08726 ,  G03G9/08753 ,  G03G9/08755 ,  G03G9/08764 ,  G03G9/08791 ,  G03G9/08793 ,  G03G9/0928

摘要： According to one embodiment, a developing agent includes a toner core particle containing a binder resin having a carboxyl group and a coloring agent and a surface layer formed on the toner core particle. The surface layer is formed by crosslinking the toner core particle, a water-soluble polymeric crosslinking agent which crosslinks with a carboxyl group and a water-soluble polymer having a carboxyl group in an aqueous medium. The developing agent can be fixed by a fixing device having a release oil applied thereto.

摘要翻译： 根据一个实施方案，显影剂包括含有具有羧基和着色剂的粘合剂树脂和形成在调色剂核心颗粒上的表面层的调色剂核心颗粒。 表面层通过将调色剂核颗粒，与羧基交联的水溶性聚合物交联剂和水性介质中具有羧基的水溶性聚合物交联而形成。 显影剂可以通过施加有脱模油的定影装置固定。