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    Color toner
    1.
    发明授权
    Color toner 失效

    公开(公告)号：US5120631A

    公开(公告)日：1992-06-09

    申请号：US514232

    申请日：1990-04-25

    申请人： Makoto Kanbayashi ,  Kenji Okado ,  Takayuki Nagatsuka ,  Yoshinobu Baba

    发明人： Makoto Kanbayashi ,  Kenji Okado ,  Takayuki Nagatsuka ,  Yoshinobu Baba

    IPC分类号： G03G9/08 ,  G03G9/09 ,  G03G9/097

    CPC分类号： G03G9/09716 ,  G03G9/09 ,  G03G9/09708 ,  G03G9/09725

    摘要： A color toner, comprises non-magnetic resin particles containing a coloring agent and two types of inorganic oxide particles, wherein;particles of coloring agent have an average particle diameter D of 300 m.mu..ltoreq.D.ltoreq.800 m.mu. as determined by measurement of scattered-light intensity; coloring agent particles with a particle diameter of from (D-120) m.mu. to (D+120) m.mu. account for not less than 90% of the whole; coloring agent particles with a particle diameter of 169 m.mu. or less account for not more than 1.0%; and coloring agent particles with a particle diameter of 949 m.mu. or more account for not more than 0.5%;said color toner has a volume average diameter of from 6 to 10 .mu.m; colored resin particles with a particle diameter of 5 .mu.m or less are contained in a proportion of from 15 to 40% by number; colored resin particles with a particle diameter of from 12.7 to 16.0 .mu.m are contained in an amount of from 0.1 to 5.0% by volume; colored resin particles with a particle diameter of 16 .mu.m or more are contained in an amount of not more than 1.0% by volume; and colored resin particles with a particle diameter of from 6.35 to 10.1 .mu.m have a particle size distribution that satisfies the following expression:9.ltoreq.V.times.dv/N.ltoreq.14 wherein V represent a volume percentage of colored resin particles with a diameter of from 6.35 to 10.1 .mu.m; N represents a number percentage of colored resin particles with a diameter of from 6.35 to 10.1 .mu.m; and dv represents a volume average particle diameter of the whole colored resin particles; andsaid inorganic oxide particles comprise a hydrophobic inorganic oxide (A) having an absolute value of not less than 50 .mu.c/g for the amount of triboelectricity and a specific surface area S.sub.A of from 80 to 300 m.sup.2 /g as measured by the BET method, contained in an amount of a% by weight based on the colored resin particles, and a hydrophilic inorganic oxide (B) having an absolute value of not more than 20 .mu.c/g for the amount of triboelectricity and a specific surface area S.sub.B of from 30 to 200 m.sup.2 /g as measured by the BET method, contained in an amount of b% by weight based on the colored resin particles, where S.sub.A .gtoreq.S.sub.B, a.gtoreq.b, and 0.3.ltoreq.a+b.ltoreq.1.5.

    Carrier for use in electrophotography, two-component type developer and image forming method
    3.
    发明授权
    Carrier for use in electrophotography, two-component type developer and image forming method 有权
    用于电子照相术的载体，双组分型显影剂和图像形成方法

    公开(公告)号：US06372400B1

    公开(公告)日：2002-04-16

    申请号：US09606162

    申请日：2000-06-29

    申请人： Kazumi Yoshizaki ,  Kenji Okado ,  Makoto Kanbayashi ,  Yushi Mikuriya

    发明人： Kazumi Yoshizaki ,  Kenji Okado ,  Makoto Kanbayashi ,  Yushi Mikuriya

    IPC分类号： G03G9113

    CPC分类号： G03G9/1131 ,  G03G9/1075 ,  G03G9/1135 ,  G03G9/1136 ,  G03G9/1137 ,  G03G9/1138 ,  G03G9/1139

    摘要： A carrier for use in electrophotography has carrier cores comprising a binder resin and metal compound particles dispersed therein, and a coating resin for coating the surfaces of the carrier cores. Water adsorption TH2O-H (% by weight) after the carrier has been left in an environment of 30° C./80%RH, water adsorption TH2O-L (% by weight) after the carrier has been left in an environment of 23° C./5%RH, and particle surface area Sm (cm2/g) of the carrier satisfy the following relationship: 6.00×10−6≦TH2O-H/(100×Sm)≦1.50×10−5, and 1.00×10−6≦TH2O-L/(100×Sm)≦5.50×10−6.

    摘要翻译： 用于电子照相术的载体具有包含分散在其中的粘合剂树脂和金属化合物颗粒的载体芯，以及用于涂覆载体芯的表面的涂布树脂。 载体在30°C / 80％RH之间的水中吸附TH2O-H（重量％）后，载体在23度环境中被吸附后的水分吸附量TH2O-L（重量％） ℃5％RH，载体的颗粒表面积Sm（cm 2 / g）满足以下关系：

    Toner for developing electrostatic image and two-component type developer for developing electrostatic image
    4.
    发明授权
    Toner for developing electrostatic image and two-component type developer for developing electrostatic image 失效
    用于显影静电图像的调色剂和用于显​​影静电图像的双组分型显影剂

    公开(公告)号：US5558967A

    公开(公告)日：1996-09-24

    申请号：US332474

    申请日：1994-10-31

    申请人： Takayuki Nagatsuka ,  Takashige Kasuya ,  Tatsuya Nakamura ,  Makoto Kanbayashi ,  Tatsuhiko Chiba

    发明人： Takayuki Nagatsuka ,  Takashige Kasuya ,  Tatsuya Nakamura ,  Makoto Kanbayashi ,  Tatsuhiko Chiba

    IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/113

    CPC分类号： G03G9/0806 ,  G03G9/0821 ,  G03G9/0825 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/1138

    摘要： A toner and a two-component developer for developing electrostatic images are disclosed. The toner comprises toner particles and the two-component developer comprises the toner and a carrier. The toner particle has a two-layer structure of a core layer and a surface layer, produced by suspension polymerization. The core layer and surface layer are mainly comprised of a resin having a low softening point and a resin having a high softening point, respectively. In the surface layer, a polyester resin having a specific acid value and a specific molecular weight is included to impart an appropriate water absorption to the toner. Due to the appropriate water absorption and superior fluidity, the toner can achieve a speedy rise of charge to give electrostatic charges in a stable quantity over a long period of time, and it can give a high image density and images with superior fine-line reproduction and highlight reproduction.

    摘要翻译： 公开了用于显影静电图像的调色剂和双组分显影剂。 调色剂包括调色剂颗粒，双组分显影剂包括调色剂和载体。 调色剂颗粒具有通过悬浮聚合制备的芯层和表面层的两层结构。 芯层和表面层主要由具有低软化点的树脂和具有高软化点的树脂组成。 在表面层中，包含具有特定酸值和特定分子量的聚酯树脂以赋予调色剂适当的吸水性。 由于适当的吸水性和优异的流动性，调色剂可以实现电荷的快速上升，从而在长时间内稳定地产生静电电荷，并且可以提供高图像密度和具有优良细线再现的图像 并突出重现。

    Toner for developing electrostatic images and charge-controlling agent
    5.
    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。

    Color toner for developing electrostatic image
    8.
    发明授权
    Color toner for developing electrostatic image 失效
    用于显影静电图像的彩色调色剂

    公开(公告)号：US5500321A

    公开(公告)日：1996-03-19

    申请号：US282367

    申请日：1994-07-29

    申请人： Takashige Kasuya ,  Takayuki Nagatsuka ,  Tatsuya Nakamura ,  Makoto Kanbayashi ,  Tatsuhiko Chiba

    发明人： Takashige Kasuya ,  Takayuki Nagatsuka ,  Tatsuya Nakamura ,  Makoto Kanbayashi ,  Tatsuhiko Chiba

    IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/09 ,  G03G9/093 ,  G03G9/00

    CPC分类号： G03G9/08704 ,  G03G9/08786 ,  G03G9/09364

    摘要： A color toner for developing electrostatic images is formed of color toner particles each including a binder resin, a polyalkylene, and a colorant. The color toner particles are formed by suspension polymerization. The polyalkylene is characterized by having a crystallinity of 10-50% and a melting enthalpy (as measured by a differential scanning calorimeter) of at most 35 cal/g. The color toner is characterized by an improved fixability without causing offset especially at a relatively low temperature and suitable for providing a transparency film for an overhead projection.

    摘要翻译： 用于显影静电图像的彩色调色剂由各自包含粘合剂树脂，聚亚烷基和着色剂的彩色调色剂颗粒形成。 彩色调色剂颗粒通过悬浮聚合形成。 聚亚烷基的特征在于具有10-50％的结晶度和至多35cal / g的熔化焓（通过差示扫描量热计测量）。 彩色调色剂的特征在于改善了定影性，而不会在相对低的温度下引起偏移，并且适于提供用于顶部投影的透明膜。