发明授权
- 专利标题: TONER
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申请号: EP11825253.5申请日: 2011-09-12
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公开(公告)号: EP2616884B1公开(公告)日: 2017-12-13
- 发明人: MATSUI, Takashi , MAGOME, Michihisa , SANO, Tomohisa , HIROKO, Shuichi , SUZUMURA, Yoshitaka , NOMURA, Shotaro
- 申请人: Canon Kabushiki Kaisha
- 申请人地址: 30-2, Shimomaruko 3-chome Ohta-ku Tokyo, Tokyo 146-8501 JP
- 专利权人: Canon Kabushiki Kaisha
- 当前专利权人: Canon Kabushiki Kaisha
- 当前专利权人地址: 30-2, Shimomaruko 3-chome Ohta-ku Tokyo, Tokyo 146-8501 JP
- 代理机构: TBK
- 优先权: JP2010207641 20100916
- 国际公布: WO2012036255 20120322
- 主分类号: G03G9/08
- IPC分类号: G03G9/08 ; G03G9/087
摘要:
A toner with good low-temperature fixability even in light-pressure type fixing units, which causes no contamination of fixing films and provides images having stable image densities and excellent image quality after long-term use. The toner includes a toner particle containing a binder resin, a coloring agent, a release agents (a) and (b) The release agent (a) is a monofunctional or bifunctional ester wax; the release agent (b) is a hydrocarbon wax; a solubility of the release agent (a) into the binder resin is higher than that of the release agent (b). When tetrahydrofuran-soluble components of the toner are subjected to GPC, a proportion of components having a molecular weight of 500 or less is 2.5 area % or less. When the tetrahydrofuran-soluble components at 25° C. are subjected to SEC-MALLS, a weight-average molecular weight Mw thereof is 5,000-100,000, and the Mw and the radius of gyration Rw thereof satisfy 5.0×10−4≦̸Rw/Mw≦̸1.0×10−2.
公开/授权文献
- EP2616884A1 TONER 公开/授权日:2013-07-24
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