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    Toner and image forming method
    2.
    发明公开
    Toner and image forming method 有权
    墨粉和图像形成方法

    公开(公告)号：EP0898204A1

    公开(公告)日：1999-02-24

    申请号：EP98115751.4

    申请日：1998-08-20

    申请人： CANON KABUSHIKI KAISHA

    发明人： Matsunaga, Satoshi ,  Tomiyama, Koichi ,  Mizoh, Koichi ,  Nozawa, Keita ,  Endo, Minekazu ,  Doujo, Tadashi ,  Ogawa, Yoshihiro ,  Shibayama, Nene

    IPC分类号： G03G9/087

    CPC分类号： G03G9/08755 ,  G03G9/087 ,  G03G9/08702 ,  G03G9/08711 ,  G03G9/08728 ,  G03G9/08797

    摘要： An electrophotographic toner is composed of at least a binder resin, a colorant, and a wax. The binder resin (a) comprises a polyester resin, a vinyl resin and a hybrid resin component comprising a polyester unit and a vinyl polymer unit, (b) has a THF (tetrahydrofuran)-soluble content (W1) of 50 - 85 wt. % and a THF-insoluble content (W2) of 5 - 50 wt. %, an ethyl acetate-soluble content (W3) of 40 - 98 wt. % and an ethyl acetate-insoluble content (W4) of 2 - 60 wt. %, a chloroform-soluble content (W5) of 55 - 90 wt. % and a chloroform-insoluble content (W6) of 10 - 45 wt. %, respectively after 10 hours of Soxhlet extraction with respective solvents, giving a ratio W4/S6 of 1.1 - 4.0, and contains a THF-soluble content providing a GPC (gel permeation chromatography) chromatogram exhibiting a main peak in a molecular weight range of 4000 - 9000, including 35.0 - 65.0 % (A1) of a component haing molecular weights in a range of 500 to below 1x10 4 , 25.0 - 45.0 % (A2) of a component having molecular weights in a range of 1x10 4 to below 1x10 5 and 10.0 - 30.0 % (A3) of a component having molecular weights of at least 1x10 5 giving a ratio A1/A2 of 1.05 - 2.00. The binder resin shows good dispersibility of wax and colorant.

    摘要翻译： 电子照相调色剂至少由粘合剂树脂，着色剂和蜡组成。 粘合剂树脂（a）包含聚酯树脂，乙烯基树脂和包含聚酯单元和乙烯基聚合物单元的杂化树脂组分，（b）具有50-85wt％的THF（四氢呋喃）可溶物含量（W1） ％和不溶于THF的成分（W2）为5-50wt。 ％，乙酸乙酯可溶物含量（W3）为40-98wt。 ％和不溶于乙酸乙酯的成分（W4）为2-60wt。 ％，可溶于氯仿的成分（W5）为55-90wt。 ％和不溶于氯仿的成分（W6）为10-45wt。 ％，分别在用各溶剂提取索氏提取物10小时后，得到比值W4 / S6为1.1-4.0，并含有提供GPC（凝胶渗透色谱）色谱图的THF可溶物含量，该色谱图显示出在分子量范围内的主峰 包括35.0-65.0％（A1）的分子量为500至低于1×104的组分，25.0至45.0％（A2）的分子量为1×104至低于1×105和10.0 - 具有至少1×10 5分子量的组分的30.0％（A 3），给出比率A 1 / A 2为1.05-2.00。 粘合剂树脂显示蜡和着色剂的良好分散性。