METHOD FOR MANUFACTURING TONER

Japanese Patent JP2022041325

A

To provide a method for manufacturing toner that prevents fusion inside a device when manufacturing toner having a smaller particle diameter.SOLUTION: A method for manufacturing toner has a step of fusing and kneading a mixture containing a binder resin and a colorant, cooling an obtained kneaded product and then coarsely pulverizing a cooled product to obtain a coarsely pulverized product, and finely pulverizing the coarsely pulverized product with finely pulverizing means. The finely pulverizing means has: a powder introduction port 101 for introducing the coarsely pulverized product into the finely pulverizing means; a stator 104 that has a plurality of projections and recesses on its inner peripheral surface; a rotor 103 that is attached to a center rotation axis 107 and has a plurality of projections and recesses on its outer peripheral surface; and a powder discharge port 106 for discharging finely pulverized powder from the finely pulverizing means. The stator includes the rotor therein, and the rotor is arranged such that the surface of the stator and the surface of the rotor are opposite to each other with a predetermined gap. The volume average particle diameter of the coarsely pulverized product introduced into the finely pulverizing means is changed during the manufacture.SELECTED DRAWING: Figure 1

MIURA MASAHARU
WATANABE HIROKI
TSUCHIKAWA REI
IWASAKI YOSUKE
YAMASHITA DAISUKE
TAMURA JUNICHI
OKAMURA TATSUJI
OURA TOMOYA
KOBAYASHI MASAHIRO
MIZOO YUICHI

JP2020146450A

March 11, 2022

September 01, 2020

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CANON KK

G03G9/08; B02C13/12

Yoshihiro Yamaguchi
Keisuke Watanabe

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