Invention Grant
- Patent Title: Magenta toner and toner kit
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Application No.: US16203864Application Date: 2018-11-29
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Publication No.: US10423090B2Publication Date: 2019-09-24
- Inventor: Takeshi Ohtsu , Yosuke Iwasaki , Wakiko Katsumata , Koh Ishigami , Masaharu Miura , Kentaro Kamae , Kenta Mitsuiki , Ryuichiro Matsuo , Yuichi Mizo
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Venable LLP
- Priority: JP2017-233024 20171205
- Main IPC: G03G9/09
- IPC: G03G9/09 ; G03G9/087 ; G03G9/08

Abstract:
Provided is a magenta toner having a magenta toner particle containing a binder resin, a colorant, a wax, a wax dispersant, and a crystalline polyester, wherein the wax dispersant is a graft polymer in which a styrene acrylic resin is grafted to a hydrocarbon compound, and the styrene acrylic resin has a monomer unit having a saturated alicyclic group, the colorant contains C.I. Pigment Red 32, and when observing a cross-section of the magenta toner particle using a transmission electron microscope (TEM), crystals of the crystalline polyester are dispersed in the cross-section, and the number average value of maximum lengths of the crystals is 50 nm or less.
Public/Granted literature
- US20190171123A1 MAGENTA TONER AND TONER KIT Public/Granted day:2019-06-06
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