Photographic products and processes employing heterocyclic azo dye developer compounds
AssigneeEastman Kodak Company
InventorsBrian D. Baigrie, Joseph Bailey, Linda G. Johnston, Miroslav V. Mijovic
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AssigneeEastman Kodak Company
InventorsBrian D. Baigrie, Joseph Bailey, Linda G. Johnston, Miroslav V. Mijovic
Estimating the term…
Photographic elements, diffusion transfer assemblages and processes are described which employ a novel dye developer compound having a dye moiety such as an arylazo-pyrazolotriazole. The compound contains: (a) a nitrogen atom in a metal chelating location in at least one of the rings attached to the azo group; (b) in the ortho position of the arylazo moiety a metal chelating group (or a salt thereof or a hydrolyzable precursor thereof), and (c) a silver halide developer moiety. The dye developer is transferred imagewise to an image-receiving layer where it is contacted with metal ions to form a metal-complexed dye developer transfer image of excellent stability.
In a photographic element comprising a support having thereon at least one photosensitive silver halide emulsion layer, said emulsion layer having associated therewith a diffusible dye developer compound, the improvement wherein said dye developer compound has the following formula:
In a photographic element comprising a support having thereon at least one photosensitive silver halide emulsion layer, said emulsion layer having associated therewith a diffusible dye developer compound, the improvement wherein said dye developer compound has a 7-arylazo-pyrazolotriazole dye moiety, said compound containing:
In a photographic element comprising a support having thereon a red-sensitive silver halide emulsion layer having a diffusible cyan dye developer associated therewith, a green-sensitive silver halide emulsion layer having a diffusible magenta dye developer associated therewith, and a blue-sensitive silver halide emulsion layer having a diffusible yellow dye developer associated therewith, the improvement wherein at least one of said dye developers has the following formula:
In a photographic assemblage to be processed by an alkaline processing composition, said assemblage comprising:
In a photographic assemblage comprising:
In an integral photographic assemblage comprising:
A process for producing photographic transfer image in color in an imagewise-exposed photographic element comprising a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith a diffusible dye developer compound having the following formula:
Dependencies are inferred from the claim text.