Toner for developing statically charged images and process for p

Details Toner for developing statically charged images and process for p Toner for developing statically charged images and process for p

1992-03-13

1993-08-31

McCamish, Marion E.

Radiation imagery chemistry: process, composition, or product th

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

Post imaging process, finishing, or perfecting composition...

430110, 430904, G03G 908

Patent

active

052408035

ABSTRACT:
A toner for developing statically charged images, comprising a binder resin, a colorant and a charge-controlling dye and a process for the preparation of this toner are disclosed. This toner consisting of particles composed of these components have a circularity of from 0.95 to 1.0, and the concentration of the dye on the surfaces of the toner particles is from 1.0.times.10.sup.-3 to 4.times.10.sup.-3 g/g. By dint of these characteristic features, the stability of the frictional chargeability characteristics of the toner is increased, and the contamination of a carrier, a developing device or the like with the dye can be prevented.

REFERENCES:
patent: 4888263 (1989-12-01), Tomita et al.
patent: 4950575 (1990-08-01), Shiozaki et al.

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