Method for forming photographic images
AssigneeFuji Photo Film Co., Ltd.
InventorsShigeru Nakamura, Isao Shimamura
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Abstract
A method for forming images which comprises image-amplifying an image-wise exposed photographic element comprising a support having thereon at least one silver halide photographic layer containing an image-wise distributed material having a catalytic action by processing the photographic element with a solution containing (1) at least one cobalt (III) complex and (2) at least one organic phosphonic acid compound in the presence of a reducing agent.
Claims7
A method for forming color dye images which comprises image-amplifying an image-wise exposed photographic element, said photographic element comprising a support having thereon at least one silver halide photographic layer containing an image-wise distributed material having a catalytic action and with said photographic element containing a color dye-forming material, by processing the element with a solution containing
- (1) at least one cobalt (III) complex having a coordination number of 6, which comprises a cobalt atom coordinated with a ligand selected from the group consisting of ethylenediamine, diethylenetriamine, triethylenetetramine, ammonia, nitrate, nitrite, azide, chloride, thiocyanate, isothiocyanate, water, carbonate or ethlenediamine tetraacetic acid
- (2) 1 g to 20 g per liter of solution of at least one organic phosphonic acid compound and
- (3) said solution having a pH of 8 to 11, in the presence of a color developing agent selected from the group consisting of a p-phenylenediamine color developing agent and an onium salt p-aminophenol color developing agent, said color developing agent being in the amplifying solution or in a solution applied prior to the amplifying solution.
Dependencies are inferred from the claim text.