Method for processing silver halide photographic material

Details Method for processing silver halide photographic material Method for processing silver halide photographic material

1985-07-30

1987-06-09

Schilling, Richard C.

Radiation imagery chemistry: process, composition, or product th

Post imaging processing

Disparate function simultaneous process step

430489, 430491, 430966, G03C 530, G03C 538

Patent

active

046720251

ABSTRACT:
A silver halide photographic material is developed with an alkaline black-and-white developer comprising (1) hydroquinone, (2) a 3-pyrazolidone-type developing agent, (3) a dialdehyde-type hardener, (4) at least one antifoggant selected from the group consisting of indazole-type antifoggants, benzimidazole-type antifoggants and benzotriazole-type antifoggants, and (5) at least one chelating agent selected from the group consisting of diethylenetriaminepentaacetic acid, triethylenetetraminehexaacetic acid, 1,3-diamino-2-propanoltetraacetic acid, glycol ether diaminetetraacetic acid, ethylenediaminetetramethylenephosphonic acid, aminotrimethylenephosphonic acid and alkali metal salts of said acids.

REFERENCES:
patent: 3201246 (1965-08-01), Allen et al.
patent: 3811888 (1974-05-01), Shibaoka et al.
patent: 3994729 (1976-11-01), Shibaoka
patent: 4040833 (1977-08-01), Hinata et al.
Purol et al., "Use of Sequestering Agents . . . ", Research Disclosure, No. 18837, 12/1979, pp. 692 & 693.

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