Claims
- 1. In a photographic element comprising a support and at least one silver halide emulsion layer, the element containing a scavenger for oxidized developing agent which does not form a dye or release a photographically useful group upon reaction with said oxidized developing agent, the improvement wherein the scavenger is a 2,4-disulfonamidophenol or an alkali labile precursor of such a phenol.
- 2. A photographic element of claim 1, wherein the scavenger has the structural formula: ##STR10## wherein: G is hydroxy or an alkali labile precursor thereof;
- each R.sup.1 is individually alkyl of 1 to 30 carbon atoms, or aryl of 6 to 30 carbon atoms or heterocyclyl of 5 to 30 atoms containing one or more ring hetero atoms selected from nitrogen, oxygen, sulfur and selenium; and
- R.sup.2, R.sup.3 and R.sup.4 are each individually hydrogen, halogen, alkyl of 1 to 30 carbon atoms, alkoxy of 1 to 30 carbon atoms, aryl of 6 to 30 carbon atoms or aryloxy of 6 to 30 carbon atoms,
- the scavenger being of sufficient bulk so as to be non-diffusible in the alkali permeable layers of the element.
- 3. A photographic element of claim 2 wherein the scavenger has the structural formula: ##STR11## wherein: each R.sup.1 is individually alkyl of 1 to 30 carbon atoms, or aryl of 6 to 30 carbon atoms; and
- R.sup.2, R.sup.3 and R.sup.4 are each individually hydrogen, alkyl or 1 to 30 carbon atoms or alkoxy of 1 to 30 carbon atoms.
- 4. A photographic element of claim 3 wherein R.sup.3 is alkyl of 1 to 4 carbon atoms or alkoxy of 1 to 4 carbon atoms and R.sup.2 and R.sup.4 are hydrogen.
- 5. A photographic element of any one of claims 1, 2 or 3, wherein the scavenger is in an interlayer between two silver halide emulsion layers.
- 6. A photographic element of any one of claims 1, 2 or 3, wherein the scavenger is in a silver halide emulsion layer.
- 7. A photographic element of claim 1, wherein the silver halide emulsion layer has associated therewith an image dye providing material.
- 8. A photographic element of claim 7, wherein the image dye providing material is a dye-forming coupler.
- 9. A photographic element of claim 7, wherein the image dye providing material is a redox dye releaser.
- 10. In a photographic element comprising a support, at least two silver halide emulsion layers containing dye-forming couplers and a scavenger for oxidized developing agent which does not form a dye or release a photographically useful group upon reaction with said oxidized developing agent, the improvement wherein the scavenger is a 2,4-disulfonamidophenol or an alkali labile precursor of such a phenol.
- 11. A photographic element of claim 10 wherein the scavenger is in an interlayer between two silver halide emulsion layers.
- 12. A photographic element of claim 10 wherein the scavenger is in a silver halide emulsion layer.
- 13. A photographic element of any one of claims 10, 11 or 12 wherein the scavenger has the structural formula: ##STR12## wherein: G is hydroxy or an alkali labile precursor thereof;
- each R.sup.1 is individually alkyl of 1 to 30 carbon atoms, or aryl of 6 to 30 carbon atoms or heterocyclyl of 5 to 30 atoms containing one or more ring hetero atoms selected from nitrogen, oxygen, sulfur and selenium; and
- R.sup.2, R.sup.3 and R.sup.4 are each individually hydrogen, halogen, alkyl of 1 to 30 carbon atoms, alkoxy of 1 to 30 carbon atoms, aryl of 6 to 30 carbon atoms or aryloxy of 6 to 30 carbon atoms,
- the scavenger being of sufficient bulk so as to be non-diffusible in the alkali permeable layers of the element.
- 14. A photographic element of any one of claims 10, 11 or 12 wherein the scavenger has the structural formula: ##STR13## wherein: each R.sup.1 is individually alkyl of 1 to 30 carbon atoms, or aryl of 6 to 30 carbon atoms; and
- R.sup.2, R.sup.3 and R.sup.4 are each individually hydrogen, alkyl or 1 to 30 carbon atoms or alkoxy of 1 to 30 carbon atoms.
- 15. A photographic element of claim 14 wherein R.sup.3 is alkyl of 1 to 4 carbon atoms or alkoxy of 1 to 4 carbon atoms and R.sup.2 and R.sup.4 are hydrogen.
Parent Case Info
This is a continuation-in-part of Ser. No. 389,994 of Robert E. Ross and Wilbur S. Gaugh, filed June 18, 1982 and now abandoned entitled "Photographic Elements Containing Scavengers For Oxidized Developing Agents."
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
389994 |
Jun 1982 |
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