Invention Grant
- Patent Title: Toner production method
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Application No.: US15945145Application Date: 2018-04-04
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Publication No.: US10386739B2Publication Date: 2019-08-20
- Inventor: Ryo Tsumura , Junichi Takashima , Fuminari Oyama
- Applicant: ZEON CORPORATION
- Applicant Address: JP Tokyo
- Assignee: ZEON CORPORATION
- Current Assignee: ZEON CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2017-076126 20170406
- Main IPC: G03G9/08
- IPC: G03G9/08 ; G03G9/09 ; G03G9/087

Abstract:
The present invention is to provide a toner production method configured to prevent scale formation, be resistant to pipe clogging, and realize stable and efficient toner production, even in the case of long-term continuous production. Disclosed is a toner production method comprising: a dispersing step for obtaining a colorant dispersion by, in a stirring tank, (a) dispersing or dissolving a colorant and a charge control agent in a polymerizable monomer, or (b) dispersing or dissolving a binder resin, a colorant and a charge control agent in an organic solvent, and a droplets forming step by suspending the colorant dispersion in an aqueous dispersion medium, wherein, in the dispersing step, the binder resin, colorant or charge control agent is added to the polymerizable monomer or organic solvent in the stirring tank, from a hopper, through a pipe heated by a heating device.
Public/Granted literature
- US20180292764A1 TONER PRODUCTION METHOD Public/Granted day:2018-10-11
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