Electrophotographic color process and electrophotographic light-

Details Electrophotographic color process and electrophotographic light- Electrophotographic color process and electrophotographic light-

1975-03-14

1977-02-08

Welsh, John D.

Gas separation: apparatus

Magnetic separating means

96 12, G03G 512, G03G 504

Patent

active

040070450

ABSTRACT:
The present invention relates to an electrophotographic color process comprising the steps of: (a) charging an electrophotographic light-sensitive material by corona discharge, said material having at least two kinds of color-producing photoconductive particles disposed at random on an electroconductive support, said color-producing photoconductive particles consisting essentially of a photoconductive particle, a sensitizer and a leuco dye, (b) exposing said charged material to light, (c) developing said material by toner containing acid substance, and producing color in the leuco dye by the interaction of the leuco dye with the acid substance, and forming a color image by carrying out once the procedure of charging, exposing and developing.
An electrophotographic light-sensitive material comprising an electroconductive support and a photoconductive layer consisting of at least two kinds of color-producing photoconductive particles disposed at random on the support, said color-producing photoconductive particles consisting essentially of a photoconductive particle, a sensitizer and a leuco dye.

REFERENCES:
patent: 3212887 (1965-10-01), Miller et al.
patent: 3253913 (1966-05-01), Smith et al.
patent: 3847607 (1974-11-01), Erido et al.
patent: 3873309 (1975-03-01), Goffe
Chemical Abstracts, vol. 80, Col. 1511984, vol. 83, Col. 186337g, vol. 81, Col. 71117b.

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