Invention Grant
- Patent Title: Production process of toner for electrostatic image development
- Patent Title (中): 用于静电图像显影的调色剂的生产工艺
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Application No.: US13449405Application Date: 2012-04-18
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Publication No.: US08728701B2Publication Date: 2014-05-20
- Inventor: Tomoko Mine , Saburou Hiraoka , Tomomi Oshiba , Tatsuya Nagase
- Applicant: Tomoko Mine , Saburou Hiraoka , Tomomi Oshiba , Tatsuya Nagase
- Applicant Address: JP Tokyo
- Assignee: Konica Minolta Business Technologies, Inc.
- Current Assignee: Konica Minolta Business Technologies, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Lucas & Mercanti, LLP
- Priority: JP2011-096943 20110425
- Main IPC: G03G5/00
- IPC: G03G5/00

Abstract:
The production process is a production process of a toner for electrostatic image development, which is composed of toner particles containing at least a binder resin. The process has an aggregating and fusion-bonding step of adding a aggregating agent containing polysilicato-iron into an aqueous medium in which fine binder resin particles formed of the binder resin have been dispersed, thereby aggregating the fine binder resin particles, and an aggregation stopper-adding step of adding an aggregation stopper composed of a polyvalent organic acid or a salt thereof. In the production process of the toner for electrostatic image development, the polyvalent organic acid or the salt thereof is preferably an amino acid or a salt thereof.
Public/Granted literature
- US20120270149A1 PRODUCTION PROCESS OF TONER FOR ELECTROSTATIC IMAGE DEVELOPMENT Public/Granted day:2012-10-25
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