Hardening developer for silver halide photography and developmen

Details Hardening developer for silver halide photography and developmen Hardening developer for silver halide photography and developmen

1994-02-08

1995-02-14

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Nonradiation sensitive image processing compositions or...

Developer

430264, 430265, 430266, 430268, 430438, 430464, 430481, G03C 5305

Patent

active

053895029

ABSTRACT:
An alkaline, aqueous black-and-white photographic developer and developing method. The developer includes hydroquinone developing agent, auxiliary developing agent, dialdehyde hardener, organic antifoggant, sulfite antioxidant, buffer, and sequestering agent selected from the group consisting of oligomeric carboxylic acid substituted hydrocarbons.

REFERENCES:
patent: 3201246 (1965-08-01), Allen et al.
patent: 3545971 (1970-12-01), Barnes et al.
patent: 3994729 (1976-11-01), Shibaoka
patent: 4040833 (1977-08-01), Hinata et al.
patent: 4078932 (1978-03-01), Hazenbosch et al.
patent: 4672025 (1987-06-01), Yamada et al.
patent: 4756997 (1988-07-01), Marchesano

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