Liquid developer for electrophotography, process for producing the same,
and process for image formation using the same
    1.
    发明授权
    Liquid developer for electrophotography, process for producing the same, and process for image formation using the same 失效
    用于电子照相术的液体显影剂,其制备方法和使用其的成像方法

    公开(公告)号:US5622804A

    公开(公告)日:1997-04-22

    申请号:US421871

    申请日:1995-04-14

    摘要: A liquid developer for electrophotography is disclosed, which comprises a carrier, a charge director contained in the carrier, and toner particles dispersed in the carrier and having a volume-average particle diameter of from 0.5 .mu.m to 5 .mu.m, wherein the toner particles comprises a thermoplastic resin substantially insoluble in the carrier at a temperature used for development, a colorant dispersed in the resin, and a charge control agent. A process for producing the liquid developer, and a process for forming an image are also disclosed. Thereby, a liquid developer for electrophotography having good toner electrification characteristics and satisfactory charge stability is obtained.

    摘要翻译: 公开了一种用于电子照相术的液体显影剂,其包含载体,包含在载体中的电荷引导剂和分散在载体中的调色剂颗粒,其体积平均粒径为0.5μm至5μm,其中调色剂颗粒 包括在用于显影的温度下基本上不溶于载体的热塑性树脂,分散在树脂中的着色剂和电荷控制剂。 还公开了一种用于生产液体显影剂的方法和一种用于形成图像的方法。 因此,获得了具有良好的调色剂带电特性和令人满意的电荷稳定性的用于电子照相的液体显影剂。

    Process for image formation using liquid developer
    2.
    发明授权
    Process for image formation using liquid developer 失效
    使用液体显影剂的成像方法

    公开(公告)号:US5723250A

    公开(公告)日:1998-03-03

    申请号:US778360

    申请日:1997-01-02

    摘要: A liquid developer for electrophotography is disclosed, which comprises a carrier, a charge director contained in the carrier, and toner particles dispersed in the carrier and having a volume-average particle diameter of from 0.5 .mu.m to 5 .mu.m, wherein the toner particles comprises a thermoplastic resin substantially insloluble in the carrier at a temperature used for development, a colorant dispersed in the resin, and a charge control agent. A process for producing the liquid developer, and a process for forming an image are also disclosed. Thereby, a liquid developer for electrophotography having good toner electrification characteristics and satisfactory charge stability is obtained.

    摘要翻译: 公开了一种用于电子照相术的液体显影剂,其包含载体,包含在载体中的电荷引导剂和分散在载体中的调色剂颗粒,其体积平均粒径为0.5μm至5μm,其中调色剂颗粒 包括在用于显影的温度下在载体中基本上不溶的热塑性树脂,分散在树脂中的着色剂和电荷控制剂。 还公开了一种用于生产液体显影剂的方法和一种用于形成图像的方法。 因此,获得了具有良好的调色剂带电特性和令人满意的电荷稳定性的用于电子照相的液体显影剂。

    Liquid developer for electrophotography
    3.
    发明授权
    Liquid developer for electrophotography 失效
    电子照相用液体显影剂

    公开(公告)号:US5529874A

    公开(公告)日:1996-06-25

    申请号:US471667

    申请日:1995-06-06

    IPC分类号: G03G9/125

    CPC分类号: G03G9/125

    摘要: A liquid developer for electrophotography comprising a carrier liquid having dispersed therein toner particles containing a binder resin and a colorant, wherein said carrier liquid contains at least one ether compound selected from compounds represented by formula (I) and compounds represented by formula (II):R.sub.1 --O(C.sub.n H.sub.2n O).sub.x --R.sub.2 (I)R.sub.3 --O--R.sub.4 (II)wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4, which may be the same or different, each represent an alkyl group, an alicyclic alkyl group, an aryl group, or an aralkyl group; n represents an integer of from 4 to 8; and x represents 1 or 2. The developer requires no heating even in winter and is less vaporized and less dangerous owing to the low solidifying point and low vapor pressure of the carrier liquid. The developer stably exhibits satisfactory charging properties. The developer is suited to high-speed copying.

    摘要翻译: 一种电子照相用液体显影剂,包括分散有含有粘合剂树脂和着色剂的调色剂颗粒的载体液体,其中所述载体液体含有至少一种选自式(I)表示的化合物和式(II)表示的化合物的醚化合物: R 1 -O(C n H 2n O)x -R 2(I)R 3 -O-R 4(II)其中R 1,R 2,R 3和R 4可以相同或不同,各自表示烷基,脂环族烷基, 芳基或芳烷基; n表示4〜8的整数, x表示1或2.显影剂即使在冬天也不需要加热,并且由于载体液体的低凝固点和低蒸汽压而较少汽化并且不太危险。 显影剂稳定地表现出令人满意的充电特性。 开发人员适合高速复制。

    Liquid developer for electrostatic photography
    5.
    发明授权
    Liquid developer for electrostatic photography 失效
    静电摄影用液体显影剂

    公开(公告)号:US5352557A

    公开(公告)日:1994-10-04

    申请号:US136757

    申请日:1993-10-15

    IPC分类号: G03G9/12 G03G9/125

    CPC分类号: G03G9/125

    摘要: A liquid developer for use in electrostatic photography comprises toner particles, each containing a resin and a colorant dispersed in a carrier liquid. The carrier liquid comprises at least one ether compound derived from ethylene glycol or propylene group and represented by the following general formulaR.sub.1 --O(C.sub.n H.sub.2n O).sub.x R.sub.2wherein R.sub.1 and R.sub.2 may be the same or different and represent an alkyl group or an aryl group, n is an integer of 2 or 3, and x is an integer of 1 to 3. The ether compound is present in the carrier liquid in the range of from 5 to 100 wt %.

    摘要翻译: 用于静电摄影的液体显影剂包括分散在载体液体中的各自含有树脂和着色剂的调色剂颗粒。 载体液体包含至少一种衍生自乙二醇或丙烯基团的醚化合物,由以下通式R 1 -O(C n H 2n O)x R 2表示,其中R 1和R 2可以相同或不同,表示烷基或芳基, n为2或3的整数,x为1〜3的整数。醚化合物以5〜100重量%的范围存在于载体液中。

    Developer for electrostatic photography and image forming method
    6.
    发明授权
    Developer for electrostatic photography and image forming method 失效
    静电摄影和图像形成方法的开发者

    公开(公告)号:US5783350A

    公开(公告)日:1998-07-21

    申请号:US762396

    申请日:1996-12-09

    CPC分类号: G03G9/125 G03G9/12 G03G9/131

    摘要: The developer for electrostatic photography according to the present invention comprises toner particles containing a thermoplastic resin and a colorant dispersed in an electrically insulating carrier having a melting point above room temperature wherein the thermoplastic resin is insoluble in the electrically insulating carrier at a temperature below the melting point of the electrically insulating carrier but becomes solvated with the electrically insulating carrier at a temperature above the melting point of the electrically insulating carrier. The present invention provides a developer for electrostatic photography, which enables to reduce the emission of vapor, to carry out a fixing treatment at a higher rate, to reduce the amount of energy required for fixing treatment and to create a high-quality image even after repeated use of the developer.

    摘要翻译: 根据本发明的用于静电摄影的显影剂包括分散在熔点高于室温的电绝缘载体中的热塑性树脂和着色剂的调色剂颗粒,其中热塑性树脂在低于熔融温度的温度下不溶于电绝缘载体 点在电绝缘载体的熔点以上的温度下与电绝缘载体溶剂化。 本发明提供了一种用于静电摄影的显影剂,其能够减少蒸气的排放,以更高的速率进行定影处理,以减少定影处理所需的能量并且甚至在产生高质量图像之后 重复使用开发者。