Toner for electrophotography

Details Toner for electrophotography Toner for electrophotography

1999-03-11

2000-05-23

Goodrow, John

Radiation imagery chemistry: process, composition, or product th

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

To produce color reproduction

430106, 430109, G03G 909

Patent

active

060664231

ABSTRACT:
A toner for electrophotography includes a binder resin as the main component and a coloring agent, wherein the binder resin contains a low molecular weight polypropylene as a separating agent, encapsulated therein; the acid value of the binder resin is adjusted equal to 1.0 (mgKOH/g) or below; and the coloring agent has a surface which is not oxidation treated and presents a pH of 7.0 or higher. Limiting the added amount and the diameter of encapsulated and dispersed polypropylene wax provides prevention against both the setoff and filming phenomena.

REFERENCES:
patent: 5773183 (1998-06-01), Doujo et al.
patent: 5804347 (1998-09-01), Inoue et al.

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