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    Toner, two-component developer and image forming method
    1.
    发明授权
    Toner, two-component developer and image forming method 失效
    调色剂，双组分显影剂和成像方法

    公开(公告)号：US6077635A

    公开(公告)日：2000-06-20

    申请号：US99527

    申请日：1998-06-18

    申请人： Kenji Okado ,  Ryoichi Fujita ,  Wakashi Iida ,  Yuji Moriki ,  Kazumi Yoshizaki ,  Michihisa Magome

    发明人： Kenji Okado ,  Ryoichi Fujita ,  Wakashi Iida ,  Yuji Moriki ,  Kazumi Yoshizaki ,  Michihisa Magome

    IPC分类号： G03G9/08 ,  G03G9/097 ,  G03G13/01

    CPC分类号： G03G9/0827 ,  G03G9/0819 ,  G03G9/09708

    摘要： A toner is disclosed which has toner particles and an external additive. The toner has (a) in circularity distribution of particles measured with a flow type particle image analyzer, an average circularity of from 0.920 to 0.995, containing particles with a circularity of less than 0.950 in an amount of from 2% by number to 40% by number; and (b) a weight-average particle diameter of from 2.0 .mu.m to 9.0 .mu.m as measured by Coulter method. The external additive has, on the toner particles, at least (i) an inorganic fine powder (A) present in the state of primary particles or secondary particles and having an average particle length of from 10 m.mu.m to 400 m.mu.m and a shape factor SF-1 of from 100 to 130 and (ii) a non-spherical inorganic fine powder (B) formed by coalescence of a plurality of particles and having a shape factor SF-1 of greater than 150. Also, a two-component developer and an image forming method, using the toner, are disclosed.

    摘要翻译： 公开了一种具有调色剂颗粒和外部添加剂的调色剂。 调色剂具有（a）以流动型颗粒图像分析仪测量的颗粒的圆形分布，平均圆形度为0.920至0.995，其中圆形度小于0.950的颗粒的量为2％至40％ 按数量 （b）通过Coulter法测定的重均粒径为2.0μm〜9.0μm。 外部添加剂在调色剂颗粒上至少存在（i）以一次粒子或二次粒子状态存在的平均粒子长度为10μm〜400μm的无机细粉末（A）， 100〜130的形状因子SF-1和（ii）通过多个粒子的聚结而形成的非球形的无机细粉末（B），并且具有大于150的形状因子SF-1。另外， - 组分显影剂和使用调色剂的图像形成方法。

    Toner for developing electrostatic images and charge-controlling agent
    2.
    发明授权
    Toner for developing electrostatic images and charge-controlling agent 失效
    用于显影静电图像和电荷控制剂的调色剂

    公开(公告)号：US5700617A

    公开(公告)日：1997-12-23

    申请号：US727219

    申请日：1996-10-08

    申请人： Tsuyoshi Takiguchi ,  Kenji Okado ,  Masaaki Taya ,  Ryoichi Fujita ,  Makoto Kanbayashi ,  Wakashi Iida ,  Tetsuya Ida

    发明人： Tsuyoshi Takiguchi ,  Kenji Okado ,  Masaaki Taya ,  Ryoichi Fujita ,  Makoto Kanbayashi ,  Wakashi Iida ,  Tetsuya Ida

    IPC分类号： G03G9/097 ,  H01B1/00 ,  H01B1/06

    CPC分类号： G03G9/09733 ,  G03G9/09708 ,  G03G9/09783

    摘要： A toner for developing an electrostatic image is formed from toner particles containing a binder resin, a colorant, and a charge-controlling agent. The charge-controlling agent comprises an aromatic oxycarboxylic acid, a metal compound of the aromatic oxycarboxylic acid, and an inorganic compound formed from an inorganic anion and an inorganic cation. The aromatic oxycarboxylic acid, the metal compound of the aromatic carboxylic acid and the inorganic anion are contained in proportions of A (wt. %), B (wt. %) and C (ppm), respectively, satisfying the following conditions: 1/99.ltoreq.A/B.ltoreq.20/80, and 10.sup.2 .ltoreq.C. Because of the inclusion of an inorganic compound providing a sufficient amount of inorganic anion, the charge-controlling agent shows a stable charge-controlling characteristic, and the resultant toner exhibits a stable developing performance and transferability in continuous image formation in various environmental conditions.

    摘要翻译： 用于显影静电图像的调色剂由含有粘合剂树脂，着色剂和电荷控制剂的调色剂颗粒形成。 电荷控制剂包括芳族羟基羧酸，芳族羟基羧酸的金属化合物和由无机阴离子和无机阳离子形成的无机化合物。 芳族羟基羧酸，芳族羧酸的金属化合物和无机阴离子分别以A（重量％），B（重量％）和C（ppm）的比例包含，满足以下条件：1 / 99 。 由于含有提供足够量的无机阴离子的无机化合物，电荷控制剂显示出稳定的电荷控制特性，并且所得调色剂在各种环境条件下表现出稳定的连续成像的显影性能和转印性。

    Toner for developing electrostatic image and fixing method
    6.
    发明授权
    Toner for developing electrostatic image and fixing method 失效
    用于显影静电图像和定影方法的调色剂

    公开(公告)号：US5851714A

    公开(公告)日：1998-12-22

    申请号：US825395

    申请日：1997-03-28

    申请人： Masaaki Taya ,  Kenji Okado ,  Ryoichi Fujita ,  Makoto Kanbayashi ,  Tsuyoshi Takiguchi ,  Wakashi Iida ,  Tetsuya Ida

    发明人： Masaaki Taya ,  Kenji Okado ,  Ryoichi Fujita ,  Makoto Kanbayashi ,  Tsuyoshi Takiguchi ,  Wakashi Iida ,  Tetsuya Ida

    IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/097

    CPC分类号： G03G9/08797 ,  G03G9/081 ,  G03G9/08755 ,  G03G9/08793 ,  G03G9/08795

    摘要： A toner for developing an electrostatic image is formed from toner particles containing at least a binder resin, a colorant and an organometallic compound. The binder resin in the toner particles has a tetrahydrofuran-insoluble (THF-insoluble) content of at most 5.0 wt.% based on the binder resin. The toner has a glass transition temperature of 50.degree.-80.degree. C. The toner further has storage modulus characteristics including a storage modulus at 80.degree. C. (G'.sub.80) of 1.times.10.sup.4 -5.times.10.sup.6 �dyn/cm.sup.2 !, a storage modulus at 130.degree. C. (G'.sub.130) providing a ratio G'.sub.80 /G'.sub.130 of 10-5.times.10.sup.3, and a storage modulus curve showing a minimum (G'min) in a temperature region of 110.degree.-190.degree. C. The toner especially exhibits excellent low-temperature fixability, anti-high temperature offset characteristic, storage stability and color-miscibility.

    摘要翻译： 用于显影静电图像的调色剂由至少含有粘合剂树脂，着色剂和有机金属化合物的调色剂颗粒形成。 调色剂颗粒中的粘合剂树脂相对于粘合剂树脂具有至多5.0重量％的四氢呋喃不溶（THF不溶性）含量。 调色剂的玻璃化转变温度为50-80℃。该调色剂还具有储能模量特性，包括80℃下的储能模量（G'80）为1×104-5×106 [dyn / cm2]，储能模量 130℃（G'130），比率G'80 / G'130为10-5×103，储能模量曲线在110〜190℃的温度区域为最小值（G'min）。 调色剂特别表现出优异的低温定影性，抗高温偏移特性，储存稳定性和颜色混溶性。

    Image forming method
    7.
    发明授权
    Image forming method 失效
    图像形成方法

    公开(公告)号：US5994019A

    公开(公告)日：1999-11-30

    申请号：US979960

    申请日：1997-11-26

    申请人： Kenji Okado ,  Toshiyuki Ugai ,  Ryoichi Fujita ,  Kazumi Yoshizaki

    发明人： Kenji Okado ,  Toshiyuki Ugai ,  Ryoichi Fujita ,  Kazumi Yoshizaki

    IPC分类号： G03G13/02 ,  G03G15/02 ,  G03G9/083

    CPC分类号： G03G13/025 ,  G03G15/0241 ,  G03G2215/022

    摘要： An image forming method is disclosed in which a contact charging means is brought into contact with a latent image bearing member to electrostatically charge the latent image bearing member on which electrostatic latent images are formed and developed with a one component type or two component type developer to form toner images, using a developing assembly provided with a developing container and a developer carrying member. The one component developer is comprised of toner particles. The two component type developer is comprised of toner particles and a magnetic carrier. The toner particles of the one component type and two component type developers contains fine particles as an external additive.The latent image bearing member has a surface layer having a volume resistivity A of from 10.sup.8 to 10.sup.15 .OMEGA..multidot.cm; the contact charging means comprises an assembly for electrostatically charging the latent image bearing member by applying a voltage to a charging member having a volume resistivity B of from 10.sup.4 to 10.sup.9 .OMEGA..multidot.cm; the toner has, as an external additive, fine particles having a volume resistivity C of from 10.sup.7 to 10.sup.11 .OMEGA..multidot.cm; the magnetic carrier has a volume resistivity D1 of from 10.sup.9 to 10.sup.15 .OMEGA..multidot.cm; and the developer carrying member has a surface layer having a volume resistivity D2 of from 10.sup.9 to 10.sup.15 .OMEGA..multidot.cm. The resistivities A, B, C, D1 and D2 stasisfy the following conditions: B

    摘要翻译： 公开了一种图像形成方法，其中接触充电装置与潜像承载部件接触，以静电潜像形成和显影的潜像承载部件用单组分型或双组分型显影剂静电充电 使用具有显影容器和显影剂承载构件的显影组件形成调色剂图像。 单组分显影剂由调色剂颗粒组成。 双组分型显影剂由调色剂颗粒和磁性载体构成。 单组分型和二组分型显影剂的调色剂颗粒含有作为外部添加剂的细颗粒。 潜像承载部件具有体积电阻率A为108至1015欧米伽×厘米的表面层; 接触充电装置包括用于通过向体积电阻率B为104至109欧姆×xcm的充电部件施加电压来静电充电潜像承载部件的组件; 作为外部添加剂，调色剂具有体积电阻率C为107至1011欧米伽×厘米的细小颗粒; 磁性载体的体积电阻率D1为109〜1015ΩEGEG×cm; 并且显影剂承载构件具有体积电阻率D2为109至1015欧姆×xcm的表面层。 电阻率A，B，C，D1和D2停留在以下条件下：B

    Two-component type developer and image forming method
    8.
    发明授权
    Two-component type developer and image forming method 有权
    双组分型显影剂和成像方法

    公开(公告)号：US06312862B1

    公开(公告)日：2001-11-06

    申请号：US09434401

    申请日：1999-11-05

    申请人： Kenji Okado ,  Ryoichi Fujita ,  Yushi Mikuriya ,  Shinya Yachi ,  Kazumi Yoshizaki

    发明人： Kenji Okado ,  Ryoichi Fujita ,  Yushi Mikuriya ,  Shinya Yachi ,  Kazumi Yoshizaki

    IPC分类号： G03G9113

    CPC分类号： G03G9/097 ,  G03G9/0819 ,  G03G9/10 ,  G03G9/107 ,  G03G9/113

    摘要： A two-component type developer has a negatively chargeable toner having toner particles and an external additive and a magnetic-fine-particle-dispersed resin carrier. The magnetic-fine-particle-dispersed resin carrier has composite particles containing at least inorganic compound particles and a binder resin. The inorganic compound particles have been surface-treated with a lipophilic-treating agent having at least one type of functional group (A) selected from the group consisting of an epoxy group, an amino group, a mercapto group, an organic acid group, an ester group, a ketone group, an alkyl halide group and an aldehyde group, or a mixture of the agent. The composite particles have been surface-coated with at least one type of coupling agent having at least one type of functional group (B) different from the functional group (A) the lipophilic-treating agent. The functional group (B) the coupling agent has being a functional group or groups selected from the group consisting of an epoxy group, an amino group and a mercapto group. The negatively chargeable toner has a weight-average particle diameter of from 3 &mgr;m to 9 &mgr;m.

    摘要翻译： 双组分型显影剂具有带负电荷的调色剂，其具有调色剂颗粒和外部添加剂和磁性微粒分散树脂载体。 磁性粒子分散树脂载体具有至少含有无机化合物粒子和粘合剂树脂的复合粒子。 无机化合物颗粒已经用具有至少一种选自环氧基，氨基，巯基，有机酸基，官能团（A）中的至少一种官能团（A）的亲脂性处理剂进行表面处理 酯基，酮基，烷基卤基和醛基，或者该试剂的混合物。 复合颗粒已经用至少一种类型的具有至少一种类型的官能团（B）的不同于亲脂性处理剂的官能团（A）的偶联剂进行表面涂覆。 官能团（B）偶联剂是选自环氧基，氨基和巯基的官能团或基团。 负带电性调色剂的重均粒径为3〜9μm。

    Magenta toner, process for producing same and color image forming method using same
    10.
    发明授权
    Magenta toner, process for producing same and color image forming method using same 失效
    洋红色调色剂，其制造方法和使用其的彩色图像形成方法

    公开(公告)号：US5912099A

    公开(公告)日：1999-06-15

    申请号：US904476

    申请日：1997-08-04

    申请人： Makoto Kanbayashi ,  Masaaki Taya ,  Ryoichi Fujita ,  Wakashi Iida ,  Tetsuya Ida

    发明人： Makoto Kanbayashi ,  Masaaki Taya ,  Ryoichi Fujita ,  Wakashi Iida ,  Tetsuya Ida

    IPC分类号： G03G9/08 ,  G03G9/09

    CPC分类号： G03G9/092 ,  G03G9/081

    摘要： A magenta toner for developing electrostatic images is formed of a binder resin, and a quinacridone pigment providing an X-ray diffraction spectrum showing two peaks in a Bragg angle (2.theta.) region of 5-10 deg. The magenta toner has an improved light fastness, may have a desired hue comparable to a printing process ink and is suitably used for electrophotographic full-color image formation. The magenta toner may preferably be formed through a process including a first kneading step starting from wet blending of a binder resin and two paste pigments including quinacridone and 2,9-dimethylquinacridone, respectively, under mild conditions not causing crystal transformation to form a master batch and a second kneading step of diluting the master batch together with other additive.

    摘要翻译： 用于静电图像显影的品红色调色剂由粘合剂树脂形成，并且提供在5-10度的布拉格角（2θ）区域中显示两个峰的X射线衍射光谱的喹吖啶酮颜料。 洋红色调色剂具有改善的耐光性，可以具有与印刷工艺油墨相当的期望色调，并且适用于电子照相全色图像形成。 品红色调色剂可以优选通过包括第一捏合步骤的方法形成，所述方法包括在不引起晶体转变以形成母料的温和条件下分别湿粘合粘合剂树脂和包括喹吖啶酮和2,9-二甲基喹吖啶酮的两种糊状颜料 以及将母料与其他添加剂一起稀释的第二捏合步骤。