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32 条记录 (耗时 0.02 秒)

    Dry toner
    22.
    发明公开
    Dry toner 有权
    干碳粉

    公开(公告)号：EP1293839A3

    公开(公告)日：2004-01-14

    申请号：EP02020776.7

    申请日：2002-09-16

    申请人： Ricoh Company, Ltd.

    发明人： Tomita, Masami ,  Emoto, Shigeru ,  Yamasita, Hiroshi ,  Sugiyama, Tsunemi

    IPC分类号： G03G9/087 ,  G03G9/08

    CPC分类号： G03G9/08755 ,  G03G9/0819

    摘要： A dry toner for developing an electrostatic image, including a toner binder containing a urea-modified polyester. The toner has a volume average particle diameter Dv of 3 to 10 µm and a number average particle diameter Dp such that the ratio Dv/Dp of the volume average particle diameter to the number average particle diameter ranges from 1.05 to 1.25.

    Toner for developing electrostatic image, developer including the toner, container containing the toner, and developing method using the toner
    27.
    发明公开
    Toner for developing electrostatic image, developer including the toner, container containing the toner, and developing method using the toner 有权
    调色剂用于使用调色剂显影用的调色剂的调色剂容器中的静电图像显影剂和显影方法

    公开(公告)号：EP1868039A2

    公开(公告)日：2007-12-19

    申请号：EP07117754.7

    申请日：2002-10-31

    申请人： Ricoh Company, Ltd.

    发明人： Yagi, Shinichiro ,  Tomita, Masami ,  Nanya, Toshiki ,  Emoto, Shigeru ,  Yamada, Hiroshi ,  Yamashita, Hiroshi ,  Watanabe, Naohiro ,  Sugiyama, Tsunemi ,  Takigawa, Tadao

    IPC分类号： G03G9/08 ,  G03G9/097

    CPC分类号： G03G9/0819 ,  G03G9/0825 ,  G03G9/08755 ,  G03G9/097

    摘要： Toner particles, comprising: a binder resin; a colorant; a release agent; and a particulate resin which is present on at least a portion of a surface of said toner particles, wherein said particulate resin has a glass transition temperature of from 50 to 90°C; wherein the ratio (Dv/Dn) of a) the volume average particle diameter (Dv) of the toner particles to b) the number average particle diameter (Dn) thereof is from 1.00 to 1.40; and wherein the ratio of 1) an area of the surface of said toner particles which are covered by said particulate resin to 2) the total area of said surface is from 1 to 90 %. Also provided is a developer including the toner particles and a developing method using the toner particles.

    摘要翻译： 调色剂颗粒，其包含：粘合剂树脂; 着色剂; 脱模剂; 和颗粒状树脂所有这些存在于所述调色剂颗粒的表面的至少一部分上，worin所述粒状树脂具有从50到90℃的玻璃化转变温度; worin的比率的比（Dv / Dn）为）的调色剂颗粒的体积平均粒径（Dv）与b）的数均粒径（Dn）是其从下午1:00到1:40; 和worin）的比例为1至它们由所述的颗粒树脂覆盖至2）的所述表面的总面积为1％至90％的调色剂颗粒。所述的表面的面积。 所以提供了一种显影剂，包括调色剂颗粒和使用该调色剂颗粒的显影方法。

    Toner, method for its production and image forming method
    28.
    发明公开
    Toner, method for its production and image forming method 有权
    墨粉，Verfahren zu dessen Herstellung und Bilderzeugungsverfahren

    公开(公告)号：EP1677159A3

    公开(公告)日：2006-07-19

    申请号：EP05028494.2

    申请日：2005-12-27

    申请人： Ricoh Company, Ltd.

    发明人： Inoue, Ryota ,  Emoto, Shigeru ,  Watanabe, Yohichiroh ,  Watanabe, Naohiro ,  Yamada, Masahide ,  Saitoh, Akinori ,  Ohki, Masahiro ,  Sugiyama, Tsunemi

    IPC分类号： G03G9/08 ,  G03G9/087

    CPC分类号： G03G9/0806 ,  G03G9/0815 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08791 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797

    摘要： The object of the present invention is to provide a toner having a uniform composition of toner materials among toner particles, excelling in charge stability, enabling high-quality images without substantially causing fog and toner scattering, and having a small diameter and a narrow particle size distribution. The present invention also provides an effective production method of the toner, and an image forming method and the like using the toner. For this end, the present invention provides a method for producing a toner in which a dissolved and dispersed solution of toner materials is dispersed as dispersion particles in an aqueous medium containing no organic resin fine particles to prepare an oil droplet-in-water dispersion, and organic resin fine particles are added to the oil droplet-in-water dispersion to thereby granulate a toner in the presence of the organic resin fine particles.

    摘要翻译： 本发明的目的是提供一种在调色剂颗粒中具有均匀组成的调色剂颗粒的调色剂，电荷稳定性优异，能够实现高质量图像而基本上不引起灰雾和调色剂飞散，并且具有小直径和窄的颗粒尺寸 分配。 本发明还提供了调色剂的有效制备方法和使用调色剂的图像形成方法等。 为此，本发明提供一种调色剂的制造方法，其中调色剂材料的溶解分散溶液作为分散体颗粒分散在不含有机树脂细颗粒的水性介质中以制备油包水分散体， 并将有机树脂细颗粒加入到油包水分散体中，从而在有机树脂细颗粒存在下使调色剂成粒。

    Method for preparing functional particulate organic material, toner using the functional particulate organic material, and image forming method and apparatus using the toner
    29.
    发明公开
    Method for preparing functional particulate organic material, toner using the functional particulate organic material, and image forming method and apparatus using the toner 有权
    功能性有机粒子的制造方法，含有这些颗粒的调色剂，以及图像形成装置，其中使用该色粉的方法和装置

    公开(公告)号：EP1491969A2

    公开(公告)日：2004-12-29

    申请号：EP04014595.5

    申请日：2004-06-22

    申请人： Ricoh Company Ltd.

    发明人： Ohtani, Shinji ,  Yamashita, Hiroshi ,  Watanabe, Yohichiroh ,  Sugiyama, Tsunemi ,  Saito, Takuya

    IPC分类号： G03G9/087 ,  C08G63/91

    CPC分类号： G03G9/09783 ,  G03G9/0804 ,  G03G9/0806 ,  G03G9/09733

    摘要： A method for preparing a functional particulate organic material, including providing a suspension of a particulate organic material having an acid group on a surface thereof; reacting a tri- or higher-valent metal cation with the acid group; and reacting at least one of an organic acid and an organic acid salt with the metal cation. A toner prepared by the method mentioned above. An image forming method including developing a latent image with the toner; transferring the toner image on a receiving material, optionally via an intermediate transfer medium, and fixing the toner image on the receiving material. A process cartridge including a developer container containing a developer including the toner mentioned above, and at least one of an image bearing member; a charger; a developing device; and a cleaner.

    摘要翻译： 制备（M1）的功能性粒状有机材料（A1）涉及第一反应的三价或多价金属阳离子与悬架包含在表面上的酸基团粒状有机材料（a1）的; 和第二反应到有机酸和/或它与金属阳离子盐。 独立权利要求中包括了以下内容：（1）调色剂，其包括调色剂颗粒（P2），其包括着色剂和具有在酸基团的粘合剂树脂和流动性改进剂。 所述酸基团键合到用三元以上的化合价的金属阳离子，所述金属阳离子键合到有机酸或其盐; （2）形成的图像涉及静电潜像的彩色调色剂图像承载元件上显影形成在图像承载部件上形成彩色调色剂图像的; 传递环上的接收材料上的调色剂图像; 和固定在接收材料上的调色剂图像; 和（3）的处理盒，其包括一个显影剂容器容纳显影剂，其包括承载部件从图像中选择的调色剂和至少一个构件，充电器配置为将所述图像电荷承载部件，以形成静电潜像的，显影装置，被配置来开发 与显影剂的静电潜像以形成图像承载构件或清洁器，构造上的调色剂图像以清洁所述图像承载部件的表面。