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    Toner manufacturing method, image forming method, image forming apparatus, and process cartridge
    1.
    发明公开
    Toner manufacturing method, image forming method, image forming apparatus, and process cartridge 有权
    Verfahren zum Herstellen von Tonern，Bilderzeugungsverfahren und-vorrichtung sowie Prozesskartusche

    公开(公告)号：EP1640809A1

    公开(公告)日：2006-03-29

    申请号：EP05018515.6

    申请日：2005-08-25

    申请人： Ricoh Company, Ltd.

    发明人： Takahashi, Hiroshi ,  Kuroda, Noboru ,  Kadota, Takahiro ,  Nishizaki, Toshinobu ,  Kohzu, Osamu

    IPC分类号： G03G9/08 ,  B01F7/16

    CPC分类号： B01F3/088 ,  B01F3/0811 ,  B01F5/0602 ,  B01F7/16 ,  B01F13/103 ,  B01F2215/0481 ,  G03G9/0806 ,  G03G9/0819

    摘要： A method of manufacturing a toner including forming an emulsion by mixing and stirring an aqueous phase and an oil phase in an emulsification mechanism by a stirring blade. The oil phase contains a dissolved material or a dispersed material which contains an organic phase formed of at least one of a resin, a resin precursor, and a monomer.
    The emulsification mechanism includes an emulsification circulation route formed of pipes having a main portion, and an emulsification device located in the middle of the emulsification circulation route.
    A stirring blade is provided in the emulsification device. In addition, the stirring Reynolds number (Stirring Re) during the stirring is from 3,000 to 15,000 when calculated based on the following relationship (1): Stirring Reynolds number (stirring Re) = ρnd 2 /µ (1). In the relationship (1), ρ represents the density of the emulsion (kg/m 3 ), n represents the rotation number (rps) of the stirring blade, d represents the blade diameter (m) of the stirring blade, and µ represents the viscosity (Pa s) of the emulsion.

    摘要翻译： 一种制造调色剂的方法，包括通过搅拌叶片混合并搅拌乳化机构中的水相和油相来形成乳液。 油相含有溶解材料或含有由树脂，树脂前体和单体中的至少一种形成的有机相的分散材料。 乳化机构包括由具有主要部分的管形成的乳化循环路线和位于乳化循环路线中间的乳化装置。 在乳化装置中设置搅拌叶片。 另外，当根据以下关系式（1）计算搅拌时的搅拌时的雷诺数（搅拌Re）为3,000至15,000：搅拌雷诺数（搅拌Re）=和/ 2（1）。 在关系式（1）中，Á表示乳液的密度（kg / m 3），n表示搅拌叶片的转数（rps），d表示搅拌叶片的叶片直径（μm），μ表示 乳液的粘度（Pa s）。

    Toner and two-component developer for electrophotographic process and image formation method and image formation apparatus using the toner
    3.
    发明公开
    Toner and two-component developer for electrophotographic process and image formation method and image formation apparatus using the toner 无效
    相同的调色剂和双组分显影剂用于电子照相处理和图像形成方法和使用图像形成装置

    公开(公告)号：EP0997786A1

    公开(公告)日：2000-05-03

    申请号：EP99308474.8

    申请日：1999-10-26

    申请人： Ricoh Company, Ltd.

    发明人： Kuroda, Noboru ,  Nakamura, Yasushi ,  Ito, Ryoichi ,  Iwamoto, Yasuaki ,  Katoh, Kohki ,  Kondou, Tomio ,  Uehara, Kenichi ,  Sugiyama, Yoshihiro ,  Sanui, Yasuyuki

    IPC分类号： G03G9/08

    CPC分类号： G03G9/0819

    摘要： A toner is made of toner particles which contains a binder resin and a coloring agent, wherein the toner particles have a weight-average particle size in a range of 6.0 to 11.5 µm, and contains toner particles (a) with a particle diameter of 5 µm or less in a content ratio of 1 to 15% by number, and toner particles (b) with a particle diameter of twice or more the weight-average particle size in a content ratio of 5 wt% or less, and the number-average particle size D25 and the number-average particle size D75 respectively obtained when the cumulative number of the toner particles reaches 25% and 75% at the measurement of a cumulative toner particle distribution by number thereof are in the relationship of 0.60 ≦ D25/D75 ≦ 0.85. A two-component developer includes the above-mentioned toner and a carrier.

    摘要翻译： 的调色剂是由含有一种粘合剂树脂和着色剂，worin调色剂颗粒具有范围为6.0的重均粒径为11.5微米的调色剂颗粒，并含有调色剂颗粒（a）用的粒径 5微米或更小的由编号1至15％的含量比，并且调色剂颗粒（b）用的两倍的粒径以上的重均粒径在5重量％或更少的含量比，并且 数均粒径D25和数均粒径D75分别获得当调色剂颗粒的累积数量在由数累积调色剂颗粒分布的测量值达到25％和75％其是在0.60的关系

    Two-component developer, two-component developer holding container, and electrophotographic image formation apparatus equipped with the container
    6.
    发明公开
    Two-component developer, two-component developer holding container, and electrophotographic image formation apparatus equipped with the container 审中-公开
    Zweikomponentenentwickler，Entwicklerbehälter，Bilderzeugungsverfahren und Bilderzeugungsvorrichtung

    公开(公告)号：EP1055970A1

    公开(公告)日：2000-11-29

    申请号：EP00111382.8

    申请日：2000-05-26

    申请人： Ricoh Company, Ltd.

    发明人： Nakamura, Yasushi ,  Kuroda, Noboru ,  Ito, Ryoichi ,  Iwamoto, Yasuaki ,  Katoh, Kohki ,  Sugiyama, Yoshihiro ,  Uehara, Kenichi ,  Kondou, Tomio

    IPC分类号： G03G9/08 ,  G03G9/097 ,  G03G9/107

    CPC分类号： G03G9/0819 ,  G03G9/09708 ,  G03G9/107

    摘要： A two-component developer includes a magnetic carrier including magnetic carrier particles with an average particle diameter of 35 µm to 100 µm, and a toner including toner particles with a weight-average particle diameter of 6.0 µm to 11.5 µm, to which at least one additive is externally added thereto in an amount of 0.3 to 1.5 wt.% to the toner, the toner particles including (a) toner particles with a particle diameter of 5 µm or less with a content ratio of 15% or less by number, and (b) toner particles with such a particle diameter that is two times or greater than the weight-average particle diameter of the toner particles with a content ratio of 5% or less by volume, the toner particles satisfying a relationship of 0.60 ≦ D25/D75 ≦ 0.85 as defined in the specification. A container in which the two-component developer is contained, and an electrophotographic image formation apparatus in which the container is incorporated are proposed.

    摘要翻译： 双组分显影剂包括磁性载体，其包括平均粒径为35μm至100μm的磁性载体颗粒，以及包含重均粒径为6.0μm至11.5μm的调色剂颗粒的调色剂，至 其中至少一种添加剂以0.3至1.5重量％的量向外添加到调色剂上，调色剂颗粒包括（a）粒径为5μm或更小的调色剂颗粒，含量比为15％或 较少的数量，和（b）具有这样的粒径的调色剂颗粒，所述调色剂颗粒的含量比例为5体积％以下的调色剂颗粒的重均粒径的两倍或更多，所述调色剂颗粒满足关系 为说明书中定义的0.60

    Method of manufacturing toner
    9.
    发明公开
    Method of manufacturing toner 有权
    Verfahren zur Herstellung eines Toners

    公开(公告)号：EP1703331A1

    公开(公告)日：2006-09-20

    申请号：EP06005080.4

    申请日：2006-03-13

    申请人： Ricoh Company, Ltd.

    发明人： Miyakawa, Masashi ,  Kuroda, Noboru ,  Takahashi, Hiroshi ,  Matsui, Kazuyuki ,  Kadota, Takahiro

    IPC分类号： G03G9/08

    CPC分类号： G03G9/08755 ,  G03G9/0804 ,  G03G9/0806 ,  G03G9/0819 ,  G03G9/0827

    摘要： A method of manufacturing a toner including dissolving or dispersing a toner component containing a colorant and a resin in an organic solvent to obtain a solution or dispersion, continuously emulsifying and dispersing the dissolved or the dispersed liquid in an aqueous medium containing a particulate dispersant to obtain emulsified primary particles, controlling cohesion and agglomeration of the emulsified primary particles and removing the organic solvent. Additionally, the ratio (T1/T2) of the arithmetic mean accumulation time (T1) of the emulsified primary particles obtained in the controlling to the arithmetic mean accumulation time (T2) of the emulsified primary particles obtained in the continuous emulsification or dispersion is from 1 to 5.

    摘要翻译： 一种制造调色剂的方法，包括将含有着色剂和树脂的调色剂组分溶解或分散在有机溶剂中以获得溶液或分散体，将溶解的或分散的液体连续乳化并分散在含有颗粒分散剂的水性介质中，得到 乳化的一次粒子，控制乳化的一次粒子的内聚和附聚并除去有机溶剂。 另外，在控制中获得的乳化一次粒子的算术平均累积时间（T1）与在连续乳化或分散中获得的乳化一次粒子的算术平均累积时间（T2）的比率（T1 / T2）来自 1〜5。