Invention Application
US20080227016A1 LATENT ELECTROSTATIC IMAGE DEVELOPING TONER, IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
审中-公开
专利静电图像显影调色剂，图像形成装置和图像形成方法
- Patent Title: LATENT ELECTROSTATIC IMAGE DEVELOPING TONER, IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
- Patent Title (中): 专利静电图像显影调色剂，图像形成装置和图像形成方法
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Application No.: US12046869Application Date: 2008-03-12
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Publication No.: US20080227016A1Publication Date: 2008-09-18
- Inventor: Tsuyoshi NOZAKI , Chiyoshi Nozaki , Atsushi Yamamoto , Mitsuyo Matsumoto , Takuya Kadota , Hiroyuki Murakami , Katsunori Kurose , Yoshimichi Ishikawa
- Applicant: Tsuyoshi NOZAKI , Chiyoshi Nozaki , Atsushi Yamamoto , Mitsuyo Matsumoto , Takuya Kadota , Hiroyuki Murakami , Katsunori Kurose , Yoshimichi Ishikawa
- Priority: JP2007-067904 20070316; JP2007-069719 20070319
- Main IPC: G03G9/087
- IPC: G03G9/087 ; G03G13/20 ; G03G15/20
Abstract:
A latent electrostatic image developing toner of the present invention is mainly composed of two or more binder resins, a colorant, a releasing agent and a layered compound. A first binder resin of the binder resins is a polyester resin with an acid value of 15 KOHmg/g or less. The layered compound is a compound in which at least some interlayer ions are modified by organic ions. Toner particles are prepared by granulation in an aqueous medium, and the layered compounds are localized in the surface of the particles by the pelletization in the granulation. The average circularity of the particles is 0.970 or more.
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