Method for processing silver halide photographic material
AssigneeFuji Photo Film Co., Ltd.
InventorsMinoru Yamada, Takashi Toyoda
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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.
Claims8
A method for development processing an imagewise exposed silver halide photographic material, comprising developing said material with an alkaline black-and-white developer comprising
- (1) hydroquinone,
- (2) a 3-pyrazolidone developing agent,
- (3) a dialdehyde hardener,
- (4) at least one antifoggant selected from the group consisting of indazole antifoggants, benzimidazole antifoggants and benzotriazole antifoggants, and
- (5) at least one chelating agent selected from the group consisting of diethylenetriaminepentaacetic acid, triethylenetetraminehexaacetic acid, and alkali metal salts of said acids, wherein the developer further contains a sulfite, a bisulfite, or a combination thereof, and the molar ratio of the sulfite and bisulfite to hydroquinone is at least about 1.6/1.
Dependencies are inferred from the claim text.