Electrophotographic photoreceptor and process for producing the

Details Electrophotographic photoreceptor and process for producing the Electrophotographic photoreceptor and process for producing the

1990-09-19

1992-11-10

Martin, Roland

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

430 65, 430131, G03G 514

Patent

active

051621851

ABSTRACT:
An electrophotographic photoreceptor is disclosed, comprising a substrate having thereon a light-reflection preventing layer comprising an anodized aluminum film and a photosensitive layer in this order. And the electrophotographic photoreceptor can be produced by a process comprising subjecting a substrate at least a surface of which comprises aluminum or an aluminum alloy to anodic oxidation in a neutral aqueous solution containing at least one of boric acid, boric acid salt, a phosphoric acid salt, etc. in a concentration of from 1 to 30% by weight or an acidic aqueous solution containing at least one of sulfuric acid, phosphoric acid, oxalic acid, chromic acid, etc. in a concentration of from 1 to 30% by weight to form an anodized aluminum film as a light reflection-preventing layer on the substrate, and then forming a photosensitive layer on said anodized aluminum film. The anodized aluminum film prevents appearance of an interference fringe when the photoreceptor is applied to a laser beam printer.

REFERENCES:
patent: 3615405 (1971-10-01), Shebanow
patent: 4369242 (1983-01-01), Arimilli et al.
patent: 4403026 (1983-09-01), Shimizu et al.
patent: 4416962 (1983-11-01), Shirai et al.
patent: 4782000 (1988-11-01), Lauke et al.
patent: 4800144 (1989-01-01), Ueda et al.
patent: 4933255 (1990-06-01), Hata et al.
H. Takahashi, et al., Anodizing of Aluminum Covered with Hydroxide I. Formation of Hydroxide and Composite Oxide Films, vol. 38, No. 2, pp. 31-37 (1987).

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