Method and apparatus for producing toner for electrophotography

Details Method and apparatus for producing toner for electrophotography Method and apparatus for producing toner for electrophotography

2006-03-14

2006-03-14

Chapman, Mark A. (Department: 1756)

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Process of making developer composition

C430S137210

Reexamination Certificate

active

07011921

ABSTRACT:
A method of producing a toner composition, including stirring and mixing toner particles comprising a binder resin, a colorant and a release agent with a charge controlling agent in a fluidizing and stirring mixer comprising a rotor having a stirring blade to fix the charge controlling agent on a surface of the toner particles, wherein the stirring and mixing comprises rotating the rotor at a peripheral speed of from 65 to 120 m/s at an environmental temperature (T) in the fluidizing and stirring mixer, satisfying the relationship,Tg-10>T>Tg-35(° C.), where the Tg represents a glass transition temperature of the binder resin.

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Patent Abstracts of Japan, JP 08-173783, Jul. 9, 1996.

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