Electrophotographic imaging process using anthraquinoid black pi

Details Electrophotographic imaging process using anthraquinoid black pi Electrophotographic imaging process using anthraquinoid black pi

1978-01-31

1980-03-04

Welsh, John D.

Radiation imagery chemistry: process, composition, or product th

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

G03G 13056

Patent

active

041915666

ABSTRACT:
An electrophotographic imaging process, wherein the electrically photosensitive particles for the image reproduction consist of a black pigment selected from the series of the anthraquinoid pigments which contain at least 2 anthraquinone radicals or at least 6 condensed rings, of the perylenetetracarboxylic diimides or of the metal complexes of the formula ##STR1## wherein A represents a nitrogen atom or the ##STR2## X represents a hydrogen or halogen atom or an alkyl group of 1 to 6 carbon atoms,

REFERENCES:
patent: 3384566 (1968-05-01), Clark
patent: 3560360 (1971-02-01), Carreira et al.

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