Invention Grant
- Patent Title: Cyan toner
- Patent Title (中): 青色墨粉
-
Application No.: US12616872Application Date: 2009-11-12
-
Publication No.: US08460845B2Publication Date: 2013-06-11
- Inventor: Takaaki Kaya , Ayako Sekikawa , Ryoichi Fujita , Shigeto Tamura , Makoto Kambayashi
- Applicant: Takaaki Kaya , Ayako Sekikawa , Ryoichi Fujita , Shigeto Tamura , Makoto Kambayashi
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2008-197526 20080731
- Main IPC: G03G9/00
- IPC: G03G9/00

Abstract:
Provided is a cyan toner which, while being a capsule-type toner having excellent low-temperature fixability, has excellent offset resistance and charging performance and can obtain high-quality images. A cyan toner having at least a resin (a) having a polyester as a main component, a colorant, and a wax, in which glass transition temperatures (° C.) Tg(0.5) and Tg(4.0) obtained at a rate of temperature increase of 0.5° C./min or 4.0° C./min satisfy 40.0≦Tg(0.5)≦60.0 and 2.0≦Tg(4.0)−Tg(0.5)≦10.0, and wherein, when the concentration of the cyan toner in an ethyl acetate dispersion is Cc1 (mg/ml), and the light absorbance at a wavelength of 712 nm of the dispersion is A(ethyl acetate)712, A(ethyl acetate)712/Cc1
Public/Granted literature
- US20100062355A1 CYAN TONER Public/Granted day:2010-03-11
Information query