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38 条记录 (耗时 0.033 秒)

    Toner for developing electrostatic images
    16.
    发明授权
    Toner for developing electrostatic images 失效
    用于开发静电图像的调色剂

    公开(公告)号：US5217836A

    公开(公告)日：1993-06-08

    申请号：US610934

    申请日：1990-11-09

    申请人： Tsuyoshi Takiguchi ,  Tsutomu Kukimoto ,  Koichi Tomiyama ,  Hiroshi Yusa ,  Tetsuhito Kuwashima

    发明人： Tsuyoshi Takiguchi ,  Tsutomu Kukimoto ,  Koichi Tomiyama ,  Hiroshi Yusa ,  Tetsuhito Kuwashima

    IPC分类号： G03G9/087

    CPC分类号： G03G9/08728 ,  G03G9/08711 ,  Y10S430/105

    摘要： A toner for developing an electrostatic image, comprises a binder resin and a colorant. The toner has a glass transition temperature (Tg) of 65.degree. C. or lower. The binder resin comprises a styrene-acrylic copolymer formed from at least a styrenic monomer and a mixture of two or more acrylic monomers. The binder resin contains 10% by weight or more of THF insolubles. The amount of the styrenic monomer remaining in the toner is 0.005 part or less by weight based on 100 parts by weight of the binder resin component in the toner (50 ppm), and the amount of the acrylic monomers remaining in said toner is 0.001 part by weight based on 100 parts by weight or less of the binder resin component in the toner (10 ppm). At least one component of the mixture of acrylic monomers has a Q-value of 0.5 to less than 1.0 and the other has a Q-value of 0.3 to less than 0.5.This toner is excellent in the anti-off-set property to a fixing roller surface, good in fixability, giving high image density and little odor.

    Toner having crosslinkages and method of fixing same
    17.
    发明授权
    Toner having crosslinkages and method of fixing same 失效
    具有交货的墨粉和固定方法

    公开(公告)号：US5180649A

    公开(公告)日：1993-01-19

    申请号：US611096

    申请日：1990-11-09

    申请人： Tsutomu Kukimoto ,  Hiroshi Yusa ,  Tsuyoshi Takiguchi ,  Koichi Tomiyama ,  Tetsuhito Kuwashima

    发明人： Tsutomu Kukimoto ,  Hiroshi Yusa ,  Tsuyoshi Takiguchi ,  Koichi Tomiyama ,  Tetsuhito Kuwashima

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

    CPC分类号： G03G9/097 ,  G03G9/0821 ,  G03G9/087

    摘要： A toner for developing electrostatic images is constituted from a binder resin, and a metal salt or a metal complex. Through the various interaction between the components, the toner is provided with unique viscoelastic properties including: a dynamic modulus G'.sub.120-200 at 120.degree.-200.degree. C. of 2.times.10.sup.3 or higher to below 5.times.10.sup.5 [dyne/cm.sup.2 ] as measured in the frequency range of 1.times.10.sup.-2 -1 (Hz); a loss modulus G".sub.120-200 at 120.degree.-200.degree. C. of 2.times.10.sup.3 or higher to below 5.times.10.sup.5 [dyne/cm.sup.2 ] as measured in the frequency range of 1.times.10.sup.-2 -1 (Hz); a dynamic modulus G'.sub.200 at 200.degree. C. and a frequency f satisfying an approximated linear relationship according to the least squares method of: logG'.sub.200 =a.multidot.log.multidot.f+log b, wherein a denotes a positive number of 0.25 or smaller and b denotes a constant; and a ratio (G'.sub.200)/(G'.sub.120) of below 0.25 wherein (G'.sub.200) denotes a dynamic modulus at 200.degree. C. and (G'.sub.120) denotes a dynamic modulus at 120.degree. C. respectively at a frequency of 1 (Hz).

    Magnetic toner, magnetic developer, apparatus unit, image forming apparatus and facsimile apparatus
    18.
    发明授权
    Magnetic toner, magnetic developer, apparatus unit, image forming apparatus and facsimile apparatus 失效
    磁性调色剂，磁性显影剂，装置单元，图像形成装置和传真装置

    公开(公告)号：US5424810A

    公开(公告)日：1995-06-13

    申请号：US942840

    申请日：1992-09-10

    申请人： Koichi Tomiyama ,  Hiroyuki Suematsu ,  Masayoshi Kato ,  Hiroshi Yusa ,  Takakuni Kobori

    发明人： Koichi Tomiyama ,  Hiroyuki Suematsu ,  Masayoshi Kato ,  Hiroshi Yusa ,  Takakuni Kobori

    IPC分类号： G03G9/083 ,  G03G15/09

    CPC分类号： G03G9/0834

    摘要： A magnetic toner for electrophotography is composed from a binder resin and a silicon-containing magnetic iron oxide. The magnetic toner has a weigh-average particle size o at most 13.5 .mu.m and has a particle size distribution such that it contains o more than 50 wt, % of magnetic toner particles having a particle size of at least 12.7 .mu.m. The magnetic toner is able to show high developing performances because of richness in fine particles and is also provided with an improved environmental stability because the magnetic iron oxide used therein contains 0.5-4 wt, % silicon (based on total iron content) and has a specific silicon distribution such that the magnetic iron oxide has a total silicon content (A), a silicon content (B) dissolved together with the magnetic iron oxide when the magnetic iron oxide is dissolved up to 20 wt, % dissolution of iron, and a superficial silicon content (C), satisfying relations of B/A=44-84% and C/A=10-55%. The performances are enhanced if the magnetic toner is blended with additives such as inorganic fine powder or resin fine particles.

    摘要翻译： 用于电子照相的磁性调色剂由粘合剂树脂和含硅磁性氧化铁组成。 磁性调色剂具有至多13.5μm的重均粒径，并且具有使其含有超过50重量％的粒径至少为12.7μm的磁性调色剂颗粒的粒度分布。 磁性调色剂由于细颗粒的丰富性而能够显示高显影性能，并且由于其中使用的磁性氧化铁含有0.5-4重量％的硅（基于总铁含量）并具有改善的环境稳定性，并且具有 磁性氧化铁具有总硅含量（A），当磁性氧化铁被溶解时与磁性氧化铁溶解在一起的硅含量（B）高达20重量％，铁溶解度高， 表面硅含量（C），满足B / A = 44-84％和C / A = 10-55％的关系。 如果将磁性调色剂与无机细粉或树脂微粒等添加剂混合，则性能得到提高。

    Toner and image forming method
    20.
    发明授权
    Toner and image forming method 有权
    调色剂和成像方法

    公开(公告)号：US06214509B1

    公开(公告)日：2001-04-10

    申请号：US09310949

    申请日：1999-05-13

    申请人： Takashige Kasuya ,  Tsutomu Kukimoto ,  Satoshi Yoshida ,  Hiroshi Yusa ,  Manabu Ohno ,  Tsuyoshi Takiguchi ,  Yuki Karaki ,  Satoshi Handa ,  Masanori Ito

    发明人： Takashige Kasuya ,  Tsutomu Kukimoto ,  Satoshi Yoshida ,  Hiroshi Yusa ,  Manabu Ohno ,  Tsuyoshi Takiguchi ,  Yuki Karaki ,  Satoshi Handa ,  Masanori Ito

    IPC分类号： G03G9097

    CPC分类号： G03G9/09708 ,  G03G9/0819 ,  G03G9/09716

    摘要： The objects of the present invention are to provide a toner excellent in transferability, little remaining on the photosensitive member and causing no defective image in roll-aided transfer (or at least such a phenomenon is well-controlled), and also to provide an image forming method using the same toner. The above objects are achieved when the toner contains a binder resin and colorant, inorganic fine particles, and a hydrotalcite compound shown by the formula: M1y12+M2y22+ . . . Mjyj2+L1x13+L2x23+ . . . Lkxk3+(OH)2.(X/n)An−.mH2O  (1) wherein 0

    摘要翻译： 本发明的目的是提供一种转印性优异，在光敏元件上几乎没有残留的调色剂，并且不会在辊辅助转印中产生不良图像（或至少这种现象被良好控制），并且还提供图像 当调色剂含有粘合剂树脂和着色剂，无机细颗粒和下式所示的水滑石化合物时，实现了上述目的：其中0 <[X =（x1 + x2 + ... xk） ] <= 0.5; Y =（y1 + y2 + ... + yj）= 1-X; j和k分别为2以上的整数， M13 +，M23 +，。 。 。 和Mj2 +是彼此不同的二价金属离子; L13 +，L23 +。 。 。 并且Lk3 +是彼此不同的三价金属离子; An-是n价阴离子; 并且m> = 0），并且当使用上述调色剂的图像形成方法包括对图像载体进行充电的充电步骤; 在所述带电图像载体上形成静电潜像的潜像形成步骤; 显影步骤，用由调色剂载体承载的调色剂显影静电潜像，以在图像载体上形成调色剂图像; 转印步骤，其通过或不通过中间介质将图像载体上的调色剂图像转印到介质上; 以及将调色剂图像固定在介质上的固定步骤。