发明申请
US20090202935A1 CARRIER, TWO-COMPONENT DEVELOPER CONTAINING CARRIER AND TONER, AND IMAGE FORMING METHOD
审中-公开
载体,包含载体和调色剂的两组分开发,以及图像形成方法
- 专利标题: CARRIER, TWO-COMPONENT DEVELOPER CONTAINING CARRIER AND TONER, AND IMAGE FORMING METHOD
- 专利标题(中): 载体,包含载体和调色剂的两组分开发,以及图像形成方法
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申请号: US12366285申请日: 2009-02-05
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公开(公告)号: US20090202935A1公开(公告)日: 2009-08-13
- 发明人: Yoshihiro Moriya , Keishi Taniguchi , Akihiro Kotsugai , Ryota Inoue , Shingo Sakashita
- 申请人: Yoshihiro Moriya , Keishi Taniguchi , Akihiro Kotsugai , Ryota Inoue , Shingo Sakashita
- 优先权: JP2008-031457 20080213; JP2008-080037 20080326
- 主分类号: G03G13/20
- IPC分类号: G03G13/20 ; G03G9/107 ; G03G9/087 ; G03G9/08
摘要:
A carrier including magnetic core particles and a coating layer, wherein the coating layer is formed by applying a coating liquid containing at least colloidal silica, a condensate of alkoxysilane represented by General Formula (1) and a solvent onto the core particles; an amount of colloidal silica contained in the coating layer is less than 60% by mass; and a ratio (h/Dw) of a thickness (h) of the coating layer to a weight average particle diameter (Dw) of the carrier is more than 0.01, wherein the carrier is used in a two-component developer together with a toner produced through aqueous granulation and containing at least a colorant, a binder resin and a releasing agent, and wherein an amount of the releasing agent present in a region from a surface of the toner to a depth of 0.3 μm is less than 4% by mass as measured through FTIR-ATR spectroscopy.
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