Magnetic toner and process for producing the same

Details Magnetic toner and process for producing the same Magnetic toner and process for producing the same

1994-03-23

1995-08-08

Rodee, Christopher D.

Radiation imagery chemistry: process, composition, or product th

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

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

430110, 430111, 430137, G03G 7083

Patent

active

054397723

ABSTRACT:
A magnetic toner comprising a binder resin, a magnetic substance, and polyolefin fine particles, wherein the content of the magnetic substance is from 20 to 80% by weight, the polyolefin fine particles have a mean dispersed particle diameter of from 0.01 to 0.5 .mu.m, the content of the polyolefin fine particles is from 2 to 20% by weight, and the toner particles have a residual magnetization (.sigma..sub.r) of from 4 to 7.0 emu/g. The magnetic toner has suitability both to printing and to reading with an MICR.

REFERENCES:
patent: 4849316 (1989-07-01), Kawaski et al.
patent: 5252421 (1993-10-01), Ichimura et al.
patent: 5270143 (1993-12-01), Tomiyama et al.
patent: 5298354 (1994-03-01), Matsunaga et al.

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