One-component type red color magnetic developer

Details One-component type red color magnetic developer One-component type red color magnetic developer

1983-11-29

1985-07-23

Martin, Roland E.

Radiation imagery chemistry: process, composition, or product th

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

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

4301066, 430903, 252 6254, 252 6256, G03G 908

Patent

active

045308934

ABSTRACT:
Disclosed is a one-component type red color magnetic developer having a self-electroscopic property, which comprises particles prepared from a kneaded composition comprising 100 parts by weight of a magnetic powder composed mainly of ocherous gamma-type diiron trioxide, 2.5 to 30 parts by weight of a red azo pigment and 40 to 200 parts by weight of a binder resin, wherein a fixed image of the particles is measured by a color difference meter, the value x is from 0.51 to 0.73, the value y is from 0.22 to 0.40 and the value Y is from 5 to 65%.

REFERENCES:
patent: 4031021 (1977-06-01), Deming
patent: 4443527 (1984-04-01), Heikens et al.
patent: 4448870 (1984-05-01), Imai et al.

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