Invention Grant
- Patent Title: Method of manufacturing toner
- Patent Title (中): 调色剂的制造方法
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Application No.: US13669685Application Date: 2012-11-06
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Publication No.: US08741533B2Publication Date: 2014-06-03
- Inventor: Hiroshi Yamada
- Applicant: Hiroshi Yamada
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2011-254503 20111122
- Main IPC: G03G9/08
- IPC: G03G9/08

Abstract:
A method of manufacturing toner is provided. The method includes preparing a first liquid by dissolving or dispersing toner components in an organic solvent, preparing a second liquid by emulsifying the first liquid in an aqueous medium, and evaporating the organic solvent from the second liquid. The toner components include a colorant, a release agent, and one or both of a binder resin and a precursor thereof. The evaporating includes flowing down the second liquid as a liquid film in substantially a vertical direction along an inner wall surface of a pipe that is depressurized, heating the liquid film at a temperature not higher than a glass transition temperature of the binder resin, and supplying the pipe with a depressurized water vapor from a supply opening disposed on an upper part of the pipe.
Public/Granted literature
- US20130130174A1 METHOD OF MANUFACTURING TONER Public/Granted day:2013-05-23
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