Laminated photosensitive material and process for production the

Details Laminated photosensitive material and process for production the Laminated photosensitive material and process for production the

1984-06-15

1985-08-20

Martin, Roland E.

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

430 59, 430130, G03G 506, G03G 514

Patent

active

045364613

ABSTRACT:
Disclosed is a laminated photosensitive material for the electrophotography, which comprises an electroconductive substrate, a charge-generating layer composed of a vacuum deposition film of metal-free phthalocyanine formed on the substrate and a charge-transporting layer formed on the charge-generating layer, wherein the metal-free phthalocyanine film is a metal-free phthalocyanine particle layer composed mainly of .alpha.-type fine crystals having a crystal particle size of 100 to 2000 .ANG. and the vacuum deposition film has a thickness of 500 to 3000 .ANG. and a dark electroconductivity lower than 10.sup.-10 (.OMEGA.-cm).sup.-1.
In this laminated photosensitive material, the initial charge quantity is improved, and the electrophotographic characteristics are stabilized when the photosensitive materials is used repeatedly or continuously.

REFERENCES:
patent: 3895944 (1975-07-01), Wiedemann et al.

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