Process for producing toner

Details Process for producing toner Process for producing toner

1991-05-16

1994-12-27

Goodrow, John

Radiation imagery chemistry: process, composition, or product th

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

Process of making developer composition

G03G 908

Patent

active

053764935

ABSTRACT:
A toner producing process comprises the steps of: mixing a solvent, a first binding resin soluble therein, and particles of a coloring agent insoluble therein, with each other, dispersing the particles of the coloring agent in the binding resin while applying a shearing force thereto to obtain a dispersed substance, removing the solvent from the dispersed substance to obtain a coloring agent-binding resin composition in which the particles of the coloring agent are dispersed, mixing the coloring agent-binding resin composition with a second binding resin and a charge controlling agent, melt-kneading the mixture to obtain a kneaded substance and forming toner from the kneaded substance.

REFERENCES:
patent: 4622281 (1986-11-01), Imai et al.
patent: 4810612 (1989-03-01), Ueda et al.
patent: 4837100 (1989-06-01), Murofushi et al.
patent: 4837101 (1989-06-01), Gruber et al.
patent: 4957841 (1990-09-01), Macholdt et al.
Patent Abstract of Japan, vol. 11, No. 335 (P-632) [2782] Nov. 4, 1987 based on JPA 62-119549.

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