Title:
TONER AND METHOD FOR MANUFACTURING TONER
Document Type and Number:
Japanese Patent JP2022148137
Kind Code:
A
Abstract:
To provide a toner that has a low content ratio of titanium oxide particles and is excellent in fluidity and image quality stability.SOLUTION: A toner of the present invention includes a toner particle. The toner particle includes a toner base particle and an external additive attached to the surface of the toner base particle. The external additive includes specific external additive particles. The specific external additive particles each include a porous titanium oxide particle and fatty acid metal salt coating the surface of the porous titanium oxide particle. The porous titanium oxide particle has a volume median diameter D50 of 0.10 μm or more and 0.50 μm or less. The content of the specific external additive particles based on 100 pts.mass of the toner base particle is 0.1 pts.mass or more and less than 1.0 pts.mass. The porous titanium oxide particle satisfies the following formula (I). (I) 0.8 cm3/g<(BET specific surface area [m2/g]×volume median diameter D50[μm]/6)<3.4 cm3/g.SELECTED DRAWING: Figure 1
Inventors:
TAKEMORI TOSHIKI
Application Number:
JP2021049704A
Publication Date:
October 06, 2022
Filing Date:
March 24, 2021
Export Citation:
Assignee:
KYOCERA DOCUMENT SOLUTIONS INC
International Classes:
G03G9/097; G03G9/08
Attorney, Agent or Firm:
Hiroyuki Maei