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    Process for producing liquid developer, liquid developer, and image forming apparatus
    4.
    发明授权
    Process for producing liquid developer, liquid developer, and image forming apparatus 失效
    液体显影剂，液体显影剂和图像形成装置的制造方法

    公开(公告)号：US08198001B2

    公开(公告)日：2012-06-12

    申请号：US12498207

    申请日：2009-07-06

    申请人： Yoshihiro Ueno ,  Masahiro Oki

    发明人： Yoshihiro Ueno ,  Masahiro Oki

    IPC分类号： G03G9/12

    CPC分类号： G03G9/13 ,  G03G9/0804 ,  G03G9/08775 ,  G03G9/08795 ,  G03G9/125 ,  G03G9/135 ,  G03G2215/0629

    摘要： A process for producing a liquid developer includes: providing a dispersion liquid containing an aqueous dispersion medium and toner mother particles including a rosin resin; chemically modifying surfaces of the toner mother particles with an amine-based material by mixing the amine-based material with the dispersion liquid to obtain toner particles; and dispersing the toner particles in an insulating liquid.

    摘要翻译： 制备液体显影剂的方法包括：提供含有水分散介质的分散液和包含松香树脂的调色剂母粒; 通过将胺基材料与分散液混合以使胺调色剂母体颗粒化学改性表面以获得调色剂颗粒; 并将调色剂颗粒分散在绝缘液体中。

    TONER
    5.
    发明申请
    TONER 失效
    托尼

    公开(公告)号：US20110223526A1

    公开(公告)日：2011-09-15

    申请号：US13042845

    申请日：2011-03-08

    申请人： Masahiro OKI

    发明人： Masahiro OKI

    IPC分类号： G03G9/00 ,  G03G15/08

    CPC分类号： G03G9/09725 ,  G03G9/0827 ,  G03G9/08755 ,  G03G9/09716

    摘要： The invention is to provide a toner with a small difference of charging properties and an excellent cleaning property. The toner includes toner particles of cylindrical bodies.

    摘要翻译： 本发明提供一种具有小充电性能差和清洁性好的调色剂。 调色剂包括圆柱体的调色剂颗粒。

    Liquid developer and image forming apparatus
    6.
    发明授权
    Liquid developer and image forming apparatus 有权
    液体显影剂和图像形成装置

    公开(公告)号：US07858284B2

    公开(公告)日：2010-12-28

    申请号：US12351344

    申请日：2009-01-09

    申请人： Masahiro Oki ,  Takashi Teshima

    发明人： Masahiro Oki ,  Takashi Teshima

    IPC分类号： G03G9/13 ,  G03G9/12 ,  G03G15/01

    CPC分类号： G03G9/125 ,  G03G9/13 ,  G03G9/131 ,  G03G9/135 ,  G03G9/1355

    摘要： A liquid developer includes an insulation liquid, toner particles dispersed in the insulation liquid, which at least a part of the surface of each of the toner particles contains a rosin resin and a dispersant improving dispersibility of the toner particles in the insulation liquid, which the dispersant is consisted of a material having a predetermined amine value. The liquid developer described above has superior positive charge property of toner particles and which has superior dispersibility of the toner particles for a long period of time. Further, an image forming apparatus that can suitably use such a liquid developer is also provided.

    摘要翻译： 液体显影剂包括绝缘液体，分散在绝缘液体中的调色剂颗粒，每个调色剂颗粒的至少一部分表面含有松香树脂和改善调色剂颗粒在绝缘液体中的分散性的分散剂， 分散剂由具有预定胺值的材料组成。 上述液体显影剂具有优异的调色剂颗粒的正电荷特性，并且长时间具有优异的调色剂颗粒分散性。 此外，还提供了可以适当地使用这种液体显影剂的图像形成装置。

    Process for Producing Toner for Liquid Developer, Toner for Liquid Developer, Process for Producing Liquid Developer, Liquid Developer, and Image Forming Apparatus
    7.
    发明申请
    Process for Producing Toner for Liquid Developer, Toner for Liquid Developer, Process for Producing Liquid Developer, Liquid Developer, and Image Forming Apparatus 审中-公开
    用于液体显影剂的调色剂的制造方法，液体显影剂用调色剂，液体显影剂的制造方法，液体显影剂和成像装置

    公开(公告)号：US20100015546A1

    公开(公告)日：2010-01-21

    申请号：US12489267

    申请日：2009-06-22

    申请人： Masahiro OKI ,  Yoshihiro UENO

    发明人： Masahiro OKI ,  Yoshihiro UENO

    IPC分类号： G03G9/00

    CPC分类号： G03G9/08795 ,  G03G9/0804 ,  G03G9/0819 ,  G03G9/08797 ,  G03G9/13

    摘要： A process for producing a toner for a liquid developer includes: preparing an emulsion liquid containing an aqueous dispersion medium and, dispersed therein, dispersoids containing a resin material which has an acidic group having a salt structure formed with a basic substance and has an acid value of from 5.0 to 20 mg KOH/mg when it is in a form of an acidic substance without forming a salt with the basic substance, a colorant and an organic solvent which dissolves the resin material; coalescing the dispersoids contained in the emulsion liquid to obtain coalescent particles; removing the organic solvent contained in the coalescent particles to obtain colored resin particles; washing the colored resin particles with an aqueous liquid (first washing step); dispersing the washed colored resin particles in an aqueous liquid and performing an acid treatment to obtain an acidic dispersion liquid having a hydrogen ion exponent (pH) adjusted to 3.0 to 6.0; washing the colored resin particles subjected to the acid treatment with an aqueous liquid (second washing step); and drying the colored resin particles subjected to the second washing step.

    摘要翻译： 用于液体显影剂的调色剂的制造方法包括：制备含有水性分散介质的乳液，分散在其中，含有具有由碱性物质形成的盐结构的酸性基团并具有酸值的树脂材料的分散体 当其为酸性物质形式而不与碱性物质形成盐时为5.0至20mg KOH / mg，着色剂和溶解树脂材料的有机溶剂; 聚集包含在乳液中的分散体以获得聚结颗粒; 除去聚结颗粒中所含的有机溶剂，得到着色树脂颗粒; 用水性液体洗涤着色树脂颗粒（第一洗涤步骤）; 将洗涤后的着色树脂颗粒分散在水性液体中，进行酸处理，得到氢离子指数（pH）为3.0〜6.0的酸性分散液; 用水性液体洗涤经过酸处理的有色树脂颗粒（第二洗涤步骤）; 并干燥经过第二洗涤步骤的着色树脂颗粒。