Invention Grant
- Patent Title: Magenta toner
- Patent Title (中): 品红色墨粉
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Application No.: US12995977Application Date: 2010-02-19
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Publication No.: US08497056B2Publication Date: 2013-07-30
- Inventor: Ayako Sekikawa , Takaaki Kaya , Atsushi Tani , Shigeto Tamura
- Applicant: Ayako Sekikawa , Takaaki Kaya , Atsushi Tani , Shigeto Tamura
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2009-046213 20090227
- International Application: PCT/JP2010/053019 WO 20100219
- International Announcement: WO2010/098415 WO 20100902
- Main IPC: G03G9/093
- IPC: G03G9/093

Abstract:
A magenta toner characterized by satisfying, in DSC measurement, 40.0≦Tg(0.5)≦60.0 and 2.0≦Tg(4.0)−Tg(0.5)≦10.0, wherein when preparing a solution of which the magenta toner is dissolved in ethyl acetate, and defined the concentration of the thereof as Cm1 (mg/ml), and the light absorbance thereof at a wavelength of 538 nm as A(ethyl acetate)538, the ratio of A(ethyl acetate)538 to Cm1 satisfies the formula, A(ethyl acetate)538/Cm1
Public/Granted literature
- US20110300478A1 MAGENTA TONER Public/Granted day:2011-12-08
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