发明名称 |
Toner having negative triboelectric chargeability and image forming method |
摘要 |
<p>A toner having a negative triboelectric chargeability is constituted by at least a binder resin, a colorant and an organic metal compound. The toner is characterized by: (a) the organic metal compound is an organic zirconium compound comprising a coordination or/and a bonding of zirconium and an aromatic compound as a ligand or/and an acid source selected from the group consisting of aromatic diols, aromatic hydroxycarboxylic acids, aromatic monocarboxylic acids, and aromatic polycarboxylic acids, (b) the binder resin is a resin selected from the group consisting of (i) a polyester resin and (ii) a hybrid resin component comprising a polyester unit and a vinyl polymer unit, (c) the binder resin has an acid value of 2 - 50 mgKOH/g, and (d) the toner contains a TFT (tetrahydrofuran)-soluble content providing a GPC (gel permeation chromatography) chromatogram exhibiting a main peak in a molecular weight range of 3,000 - 20,000 and including 3 - 25 % of a component having molecular weights of at least 5x10<5>. <IMAGE></p> |
申请公布号 |
EP0961175(A2) |
申请公布日期 |
1999.12.01 |
申请号 |
EP19990110131 |
申请日期 |
1999.05.25 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
MATSUNAGA, SATOSHI;NAKAHARA, TOSHIAKI;MIZOH, YUICHI;TANIKAWA, HIROHIDE;ENDO, MINEKAZU;DOUJO, TADASHI;SHI BAYAMA, NENE |
分类号 |
G03G9/097;G03G9/087;(IPC1-7):G03G9/097;G03G9/08 |
主分类号 |
G03G9/097 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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