One-component toner for dry electrophotography containing metal

Details One-component toner for dry electrophotography containing metal One-component toner for dry electrophotography containing metal

1987-07-02

1989-10-10

Welsh, J. David

Radiation imagery chemistry: process, composition, or product th

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

One component toner

430110, 4301066, G03G 914

Patent

active

048731854

ABSTRACT:
A toner for dry electrophotography comprises a binder resin, a metal complex compound (A) of an aromatic hydroxycarboxylic acid having a lipophilic group, and a metal complex salt-type monoazo dye (B) having a hydrophilic group. The compound (A) functions to enhances the negative triboelectric chargeability of the toner, and the dye (B) functions to leak an excessive charge of the toner, so that the toner is caused to have a uniform and sharp triboelectric charge distribution. As a result, the toner involves little liability of causing "tailing", an irregularity caused by undesirable toner scattering.

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