发明授权
- 专利标题: Production process of toner for electrostatic image development
- 专利标题(中): 用于静电图像显影的调色剂的生产工艺
-
申请号: US13525579申请日: 2012-06-18
-
公开(公告)号: US08871419B2公开(公告)日: 2014-10-28
- 发明人: Saburou Hiraoka , Tomomi Oshiba , Mikihiko Sukeno , Tomoko Mine , Hitomi Motani , Tatsuya Nagase , Ken Ohmura
- 申请人: Saburou Hiraoka , Tomomi Oshiba , Mikihiko Sukeno , Tomoko Mine , Hitomi Motani , Tatsuya Nagase , Ken Ohmura
- 申请人地址: JP Tokyo
- 专利权人: Konica Minolta Business Technologies, Inc.
- 当前专利权人: Konica Minolta Business Technologies, Inc.
- 当前专利权人地址: JP Tokyo
- 代理机构: Lucas & Mercanti, LLP
- 优先权: JP2011-137177 20110621
- 主分类号: G03G9/087
- IPC分类号: G03G9/087 ; G03G9/08
摘要:
The toner for electrostatic image development has excellent charge properties, by which excellent toner particle size-controlling ability is achieved, and moreover the sharpening of a particle size distribution is achieved. The toner is composed of toner particles containing a binder resin. The process has an aggregating step of adding an aggregating agent containing a transition element into an aqueous medium of dispersed fine binder resin particles to aggregate the fine binder resin particles, and an aggregation-stopping step of adding an aggregation stopper composed on a sulfur atom-containing compound exhibiting a reducing action on the aggregating agent. The aggregating agent is a salt of a bivalent or higher metal selected from Sr, Ti, V, Cr, Mn, Fe, Co, Ni and Cu.
公开/授权文献
信息查询