Electrophotographic elements containing a titanyl fluorophthaloc

Details Electrophotographic elements containing a titanyl fluorophthaloc Electrophotographic elements containing a titanyl fluorophthaloc

1992-02-13

1993-08-24

Goodrow, John

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

430 78, G03G 506

Patent

active

052387640

ABSTRACT:
The invention provides an electrophotographic element comprising an electrically conductive substrate and a photoconductive layer, wherein the photoconductive layer has been formed from a coating solution of a polymeric binder and an organic solvent having a gamma.sub.c hydrogen bonding parameter value greater than 9.0, the coating solution having dispersed therein a titanyl fluorophthalocyanine pigment which has been acid-pasted or salt-milled to increase its photosensitivity and then has been brought into contact with an organic solvent having a gamma.sub.c hydrogen bonding parameter value less than 8.0 to preserve its increased photosensitivity, prior to the pigment's being dispersed in the coating solution.

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