Title:
METHOD FOR MANUFACTURING ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER
Document Type and Number:
Japanese Patent JP3966844
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for manufacturing toner having excellent charging property (in particular, environmental stability).
SOLUTION: The method for manufacturing an electrostatic charge image developing toner includes a step of removing the solvent from a water-based suspension liquid (I) comprising a resin, organic solvent and calcium-based inorganic dispersant to obtain an aqueous liquid (II), and of treating the obtained liquid (II) in a treatment tank to decrease the amount of extracted total organic carbon and an extracted alkali value. The method is characterized in that a colorant is added in a desired stage and that a toner having ≤500 ppm extracted total organic carbon content and ≤0.5 mKOH/g extracted alkali value is manufactured.
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Inventors:
Naoto Ogiso
Hara Takashi
Shinpei Takagi
Tetsuya Taguchi
Atsushi Sugidate
Hara Takashi
Shinpei Takagi
Tetsuya Taguchi
Atsushi Sugidate
Application Number:
JP2003336810A
Publication Date:
August 29, 2007
Filing Date:
September 29, 2003
Export Citation:
Assignee:
SANYO CHEMICAL INDUSTRIES,LTD.
Fuji Xerox Co., Ltd
Fuji Xerox Co., Ltd
International Classes:
G03G9/087; (IPC1-7): G03G9/087
Domestic Patent References:
| JP10153877A | ||||
| JP10221884A | ||||
| JP2001013726A |
Attorney, Agent or Firm:
Michihiko Fujiwara