Invention Grant
- Patent Title: Method for producing positively chargeable toner
- Patent Title (中): 正电荷调色剂的制造方法
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Application No.: US12023669Application Date: 2008-01-31
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Publication No.: US07960085B2Publication Date: 2011-06-14
- Inventor: Masateru Kawamura , Jun Ikami
- Applicant: Masateru Kawamura , Jun Ikami
- Applicant Address: JP Nagoya-shi, Aichi-ken
- Assignee: Brother Kogyo Kabushiki Kaisha
- Current Assignee: Brother Kogyo Kabushiki Kaisha
- Current Assignee Address: JP Nagoya-shi, Aichi-ken
- Agency: Banner & Witcoff, Ltd.
- Priority: JP2007-022048 20070131
- Main IPC: G03G9/097
- IPC: G03G9/097

Abstract:
A method for producing a positively chargeable toner is described. The method for producing a positively chargeable toner may include the steps of: mixing and emulsifying a charge-controlling resin having a positive polar group, an organic solvent and an aqueous medium to form an emulsion, and then removing the organic solvent from the emulsion, to thereby form a suspension of the charge-controlling resin having a positive polar group in the range of 5.0×10−5 to 6.0×10−4 mol/g; mixing the suspension of the charge-controlling agent with a suspension of toner base particles containing a binder resin and a colorant, to thereby form a mixture; and heating the mixture containing the suspension of the toner base particles and the suspension of the charge-controlling resin, to thereby fix the charge-controlling resin on the surfaces of the toner base particles.
Public/Granted literature
- US20080182198A1 Method for Producing Positively Chargeable Toner Public/Granted day:2008-07-31
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