トナー製造方法

Title:

トナー製造方法

Document Type and Number:

Japanese Patent JP7199994

Kind Code:

B2

Abstract:

To provide a toner crushing method having sharp particle size distribution.SOLUTION: Provided is a toner production method that melt-kneads a mixture containing a binder resin and a coloring agent, cools and roughly crushes the mixture, and pulverizes the mixture by crushing means, in which the crushing means has two powder charging ports 101 for charging the roughly crushed matter into crushing means, a stator 103 having a plurality of projections and recesses on an inner peripheral surface, a rotor 104 which is mounted on a center rotation shaft 107 and has a plurality of projections and recesses on an outer peripheral surface, and only one powder discharge port 106 for discharging the pulverized powder from the crushing means. The stator includes the rotor, the rotor is arranged so that the stator surface and the rotor surface face each other with a predetermined gap, and the pulverization step supplies the roughly crushed matter from the two powder charging ports in parallel, and discharges the roughly crushed matter from the only one powder discharge port through the processing part where the stator and the rotor face each other by riding on an air flow flowing to the powder discharge port from the powder charging port.SELECTED DRAWING: Figure 2

More Like This:

JP2004045498	IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS
JPS5911103	[Title of the Invention] An electrostatic photograph development agent constituent containing an electrostatic photograph toner material and it

Inventors:

Yamashita Daisuke
Hiroki Watanabe
Shoji Miura
Yousuke Iwasaki
Rei Tsuchikawa
Ryuji Okamura
Shinichi Iwata
Koji Iizumi
Takahiro Masada
Hiroki Nakae
Yuichi Mizoo

Application Number:

JP2019027019A

Publication Date:

January 06, 2023

Filing Date:

February 19, 2019

Export Citation:

Click for automatic bibliography generation Help

Assignee:

Canon Inc

International Classes:

G03G9/08; B02C13/10; B02C13/26; B02C13/28; B02C13/286; B02C19/06

Domestic Patent References:

JP2011237816A
JP201199641A
JP11216377A
JP9187732A
JP531391A
JP55107241U

Foreign References:

WO2011138932A1

Attorney, Agent or Firm:

Yoshihiro Yamaguchi
Keisuke Watanabe

Previous Patent: Polymer production system and production method

Next Patent: locking mechanism