Invention Grant
- Patent Title: Toner and method of producing toner
-
Application No.: US14943813Application Date: 2015-11-17
-
Publication No.: US09658546B2Publication Date: 2017-05-23
- Inventor: Keisuke Tanaka , Takashi Matsui , Satoshi Arimura , Kozue Uratani , Shohei Tsuda , Naoki Okamoto
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick Cella Harper and Scinto
- Priority: JP2014-241180 20141128; JP2015-219304 20151109
- Main IPC: G03G9/08
- IPC: G03G9/08 ; G03G9/097

Abstract:
Provided is toner comprising toner particle containing binder resin and colorant and silica fine particle, wherein: the silica fine particle contains silica fine particle A and silica fine particle B; silica fine particle A has a number average particle diameter of primary particle of 5 nm or more and 20 nm or less; silica fine particle B has a number average particle diameter of primary particle of 80 nm or more and 200 nm or less; and silica fine particle B has a half width of a peak of primary particle of 25 nm or less, in a weight-based particle size distribution, and wherein when the toner is measured by adhesive force-measuring method by using polycarbonate thin film, an adhesion of the silica fine particle A is 0.5% by area or less relative to 100% by area of the total area of the polycarbonate thin film.
Public/Granted literature
- US20160154331A1 TONER AND METHOD OF PRODUCING TONER Public/Granted day:2016-06-02
Information query