发明授权
US06187496B1 Toner and developer for developing electrostatic image, process for production thereof and image forming method
失效
用于显影静电图像的调色剂和显影剂，其制备方法和成像方法
- 专利标题： Toner and developer for developing electrostatic image, process for production thereof and image forming method
- 专利标题（中）： 用于显影静电图像的调色剂和显影剂，其制备方法和成像方法
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申请号： US08821071申请日： 1997-03-20
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公开(公告)号： US06187496B1公开(公告)日： 2001-02-13
- 发明人: Hirohide Tanikawa , Toshiaki Nakahara , Keita Nozawa , Kazuyoshi Hagiwara , Minoru Shimojo , Rika Shinba , Masami Fujimoto , Tsutomu Onuma
- 申请人： Hirohide Tanikawa , Toshiaki Nakahara , Keita Nozawa , Kazuyoshi Hagiwara , Minoru Shimojo , Rika Shinba , Masami Fujimoto , Tsutomu Onuma
- 优先权： JP5-323424 19931130; JP5-346992 19931227; JP6-089949 19940427; JP6-118550 19940531
- 主分类号： G03G9083
- IPC分类号： G03G9083
摘要：
A toner for developing an electrostatic image is formed of toner particles; wherein each toner particle includes (i) 100 wt. parts of a binder resin having a glass transition point (Tg) of 50-70° C., (ii) 0.2-20 wt. parts of solid wax, and (iii) colorant particles or magnetic powder, (iv) lubricant particles carrying a liquid lubricant, so that the toner particle retains at its surface the liquid lubricant gradually released from the particles (iv). The toner may be further blended with an organically treated inorganic fine powder to provide a developer. The toner or developer retains good lubricity and releasability so that it is suitable to be used in an image forming method including means contacting a latent image-bearing means, such as a contact charging means, a contact transfer means or a contact cleaning means.