Dry toners containing fanal pigments based on cationic dyes

Details Dry toners containing fanal pigments based on cationic dyes Dry toners containing fanal pigments based on cationic dyes

1988-04-12

1989-09-26

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...

430110, G03G 910, G03G 908

Patent

active

048699896

ABSTRACT:
A dry toner for developing latent electrostatic images in electrostatic recording and printing methods contains, as charge-control substance, a pigment of the formula ##STR1## in which A.sup.- represents an anion of a heteropolyacid based on tungsten and/or molybdenum with phosphorus, vanadium, cobalt, aluminium, manganese, chromium and/or nickel or a copper(I) hexacyanoferrate anion,

REFERENCES:
patent: 3985559 (1976-10-01), Peters
patent: 4301227 (1981-11-01), Hotta et al.

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