Liquid electrophotographic developers
    1.
    发明授权
    Liquid electrophotographic developers 失效
    液体电子照相显影剂

    公开(公告)号:US4197211A

    公开(公告)日:1980-04-08

    申请号:US510878

    申请日:1974-10-01

    IPC分类号: G03G9/13 G03G9/00

    CPC分类号: G03G9/131

    摘要: Development of an electrostatic latent image is obtained with a chemically stable, nonaqueous, ambipolar, liquid developer comprising an oleaginous vehicle, solid colorant particles, a dispersant soluble in the liquid developer which is capable of substantially supressing background deposits, and a fixing agent miscible with the liquid which penetrates the copy paper.

    摘要翻译: 通过化学稳定的非水性双极液体显影剂获得静电潜像的显影,其包含油性载体,固体着色剂颗粒,可溶于液体显影剂的分散体,其能够基本上抑制背景沉积物,以及可与 透过复印纸的液体。

    Photoelectrophoretic color imaging process in which back migration is
eliminated
    2.
    发明授权
    Photoelectrophoretic color imaging process in which back migration is eliminated 失效
    消除反向迁移的光电彩色成像过程

    公开(公告)号:US4023968A

    公开(公告)日:1977-05-17

    申请号:US300532

    申请日:1972-10-25

    IPC分类号: G03G17/04

    CPC分类号: G03G17/04

    摘要: In an electrophoretic reproduction process wherein a colored reproduction of an original is obtained by sequentially electrophoretically generating at least two visible monochromatic images, and superimposing said images in registry upon a copy web to form a colored reproduction, an improvement is provided comprising essentially eliminating back migration of marking materials from the copy web to the imaging suspension in the second and subsequent image generating steps by employing, in each instance, marking materials comprising a solvent tackifiable polymer and a colorant and/or a copy web containing a solvent tackifiable polymer, and applying to the copy web at least a partial solvent for said tackifiable polymer in an amount sufficient to render said polymer at least partially tacky before the second and before each subsequent image generating step.

    摘要翻译: 在电泳再现过程中,其中通过顺序电泳产生至少两个可见单色图像并将所述图像重新注册在复印网上以形成彩色再现来获得原件的彩色再现,提供了基本上消除反向迁移的改进 在第二次和随后的图像生成步骤中通过使用包括溶剂可粘合聚合物和着色剂的标记材料和/或含有溶剂可粘合聚合物的复印网来标记材料从第二和随后的图像生成步骤中的成像悬浮液,并施加 至少一种所述可胶化聚合物的部分溶剂,其量足以使所述聚合物在第二次和之后的每个后续图像生成步骤之前至少部分发粘。