发明授权
US5422707A Toner for developing electrostatic images, detachable apparatus, image
forming apparatus and facsimile apparatus
失效
用于显影静电图像的调色剂,可拆卸装置,图像形成装置和传真装置
- 专利标题: Toner for developing electrostatic images, detachable apparatus, image forming apparatus and facsimile apparatus
- 专利标题(中): 用于显影静电图像的调色剂,可拆卸装置,图像形成装置和传真装置
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申请号: US304823申请日: 1994-09-13
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公开(公告)号: US5422707A公开(公告)日: 1995-06-06
- 发明人: Tsuyoshi Takiguchi , Tsutomu Kukimoto , Koichi Tomiyama , Hiroshi Yusa , Tetsuhito Kuwashima
- 申请人: Tsuyoshi Takiguchi , Tsutomu Kukimoto , Koichi Tomiyama , Hiroshi Yusa , Tetsuhito Kuwashima
- 申请人地址: JPX Tokyo
- 专利权人: Canon Kabushiki Kaisha
- 当前专利权人: Canon Kabushiki Kaisha
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX1-289878 19891109
- 主分类号: G03G9/087
- IPC分类号: G03G9/087 ; G03G9/083 ; G01D15/06 ; G03G15/06 ; H04N1/21
摘要:
A toner for developing an electrostatic image, comprises a binder resin and a colorant. The toner has a glass transition temperature (Tg) of 65.degree. C. or lower. The binder resin comprises a styrene-acrylic copolymer formed from at least a styrenic monomer and a mixture of two or more acrylic monomers. The binder resin contains 10% by weight or more of THF insolubles. The amount of the styrenic monomer remaining in the toner is 0.005 part or less by weight based on 100 parts by weight of the binder resin component in the toner (50 ppm), and the amount of the acrylic monomers remaining in said toner is 0.001 part by weight based on 100 parts by weight or less of the binder resin component in the toner (10 ppm). At least one component of the mixture of acrylic monomers has a Q-value of 0.5 to less than 1.0 and the other has a Q-value of 0.3 to less than 0.5.This toner is excellent in the anti-off-set property to a fixing roller surface, good in fixability, giving high image density and little odor.
公开/授权文献
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