Title:
METHOD FOR MANUFACTURING ELECTROSTATIC CHARGE IMAGE DEVELOPMENT TONER
Document Type and Number:
Japanese Patent JP2023058063
Kind Code:
A
Abstract:
To provide a method for manufacturing electrostatic charge image development toner excellent in low temperature fixability and durability.SOLUTION: A method for manufacturing electrostatic charge image development toner comprises the step of melting and mixing the mixture of a raw material including an amorphous resin, a crystalline polyester resin and a release agent by a twin screw extruder. In one or more material supply ports included at each of a position f1 having less than 0.3 L from the entrance side end of a barrel and a position f2 having 0.3 L or more and 0.9 L or less when setting the length of the barrel of the twin screw extruder to L. A raw material including the amorphous resin is supplied from a material supply port F1 at the position f1, and a raw material including the crystalline polyester resin and the release agent is supplied from a material supply port F2 at the second position f2.SELECTED DRAWING: None
Inventors:
WATANABE SHOGO
FURUSE DAIKI
FURUSE DAIKI
Application Number:
JP2021167800A
Publication Date:
April 25, 2023
Filing Date:
October 13, 2021
Export Citation:
Assignee:
KAO CORP
International Classes:
G03G9/08; G03G9/087; G03G9/097
Attorney, Agent or Firm:
Yoshinori Hosoda
Yoshihiro Hosoda
Yoshihiro Hosoda