Photographic diffusion transfer films, processes and compositions with color moiety releasing compound
AssigneeEastman Kodak Company
InventorsLee J. Fleckenstein, John Figueras
Life of this patent
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Abstract
Color photographic elements, compositions, diffusion transfer film units and processes are described which employ a nondiffusible p-sulfonamidoaniline or p-sulfonamidophenol which is preferably alkali-cleavable upon oxidation to release a diffusible color-providing moiety.
Claims33
A photosensitive element comprising a support having thereon at least one photosensitive silver halide emulsion layer, each said silver halide emulsion layer having associated therewith a nondiffusible p-sulfonamidoaniline or p-sulfoamidophenol having a color-providing moiety attached through the sulfonamido group.
A photosensitive element comprising a support having thereon at least one photosensitive silver halide emulsion layer, each said silver halide emulsion layer having associated therewith a nondiffusible sulfonamido compound which is alkalicleavable upon oxidation to release a diffusible color-providing moiety from the benzene nucleus, said compound having the formula:
- ##SPC15##
- wherein:
- 1. Col is a dye or dye precursor moiety;
- 2. Ballast is an organic ballasting radical of such molecular size and configuration as to render said compound nondiffusible during development in an alkaline processing composition;
- 3. G is OR or NHR.sub.1 wherein R is hydrogen or a hydrolyzable moiety and R.sub.1 is hydrogen or an alkyl group of one to 22 carbon atoms;
- and
- 4. n is a positive integer of 1 to 2 and is 2 when G is OR or when R.sub.1 is hydrogen or an alkyl group of less than eight carbon atoms.
A photosensitive element comprising a support having thereon a red-sensitive silver halide emulsion layer having associated therewith a cyan dye image-providing material, a green-sensitive silver halide emulsion layer having associated therewith a magenta dye image-providing material, and a blue-sensitive silver halide emulsion layer having associated therewith a yellow dye image-providing material, at least one of said dye image-providing materials being nondiffusible p-sulfonamidoaniline or p-sulfonamidophenol having a color-providing moiety attached through the sulfonamido group, said sulfonamido compound being alkali-cleavable upon oxidation to release diffusible color-providing moiety from the benzene nucleus.
A photographic film unit comprising:
- a. a photosensitive element comprising a support having thereon at least one photosensitive silver halide emulsion layer, each said silver halide emulsion layer having associated therewith a nondiffusible p-sulfonamidoaniline or p-sulfonamidophenol having a color-providing moiety attached through the sulfonamido group, said sulfonamido compound being alkali-cleavable upon oxidation to release said diffusible color-providing moiety from the benzene nucleus;
- b. a dye image-receiving layer;
- and
- c. means for discharging an alkaline processing composition within said film unit;
- said film unit containing a silver halide developing agent.
A photographic film unit comprising:
- a. a photosensitive element comprising a support having thereon a red-sensitive silver halide emulsion layer having associated therewith a cyan dye image-providing material, a green-sensitive silver halde emulsion layer having associated therewith a magenta dye image-providing material, and a blue-sensitive silver halide emulsion layer having associated therewith a yellow dye image-providing material;
- b. a dye image-receiving layer;
- and
- c. a rupturable container containing an alkaline processing composition, said rupturable container being adapted to be positioned during processing of said film unit so that a compressive force applied to said container by pressure-applying members will effect a discharge of the container's contents within said film unit;
- said film unit containing a silver halide developing agent;
- at least one of said dye image-providing materials being a nondiffusible p-sulfonamidoaniline or p-sulfonamidophenol having a color-providing moiety attached through the sulfonamido group, said sulfonamido compound being alkali-cleavable upon oxidation to release said diffusible color-providing moiety from the benzene nucleus.
A process for producing a photographic transfer image in color, comprising:
- A. imagewise exposing a photosensitive element comprising a support having thereon at least one photosensitive silver halide emulsion layer, said silver halide emulsion layer having associated therewith a dye image-providing material comprising a nondiffusible p-sulfonamidoaniline or p-sulfonamidophenol having a color-providing moiety attached through the sulfonamido group, said sulfonamido compound being alkali-cleavable upon oxidation to release said diffusible color-providing moiety from the benzene nucleus;
- B. treating said photosensitive element with an alkaline processing composition in the presence of a silver halide developing agent to effect development of each of said exposed silver halide emulsion layers, thereby oxidizing said developing agent;
- C. said oxidized developing agent thereby cross-oxidizing said sulfonamido compound;
- D. said oxidized sulfonamido compound then cleaving, thus forming an imagewise distribution of diffusible dye or dye precursor as a function of said imagewise exposure of each of said silver halide emulsion layers;
- and
- E. at least a portion of said imagewise distributions of diffusible dye or dye precursor diffusing to a dye image-receiving layer to provide an image.
A process for producing a photographic transfer image in color comprising:
- A. imagewise-exposing a photosensitive element comprising a support having thereon a red-sensitive silver halide emulsion layer having associated therewith a cyan dye image-providing material, a green-sensitive silver halide emulsion layer having associated therewith a magenta dye image-providing material, and a blue-sensitive silver halide emulsion layer having associated therewith a yellow dye image-providing material, at least one of said dye image-providing materials being a nondiffusible p-sulfonamidoaniline or p-sulfonamidophenol having a color-providing moiety attached through the sulfonamido group, said sulfonamido compound being alkali-cleavable upon oxidation to release said diffusible color-providing moiety from the benzene nucleus;
- B. superposing over the layer outermost from the suuport of said photosensitive element a dye image-receiving layer coated on a support;
- C. positioning a rupturable container containing an alkaline processing composition comprising a silver halide developing agent between said exposed photosensitive element and said dye image-receiving layer;
- D. rupturing said container to effect a discharge of the container's contents between said outermost layer of said exposed photosensitive element and said dye image-receiving layer;
- E. thereby effecting development of each of said exposed silver halide emulsion layers, thereby oxidizing said silver halide developing agent;
- F. said oxidized developing agent cross-oxidizing said sulfonamido compound;
- G. said sulfonamido compound then cleaving, thus forming an imagewise distribution of diffusible dye or dye precursor as a function of said imagewise exposure of each of said silver halide emulsion layers;
- H. at least a portion of said imagewise distributions of diffusible dye or dye precursor diffusing to said dye image-receiving layer to provide an image;
- and
- I. separating said photosensitive element from said dye image-receiving layer coated on its said support.
A process for producing a photographic transfer image in color comprising:
- A. imagewise-exposing a photographic element comprising a transparent support having thereon:
- a. a dye image-receiving layer;
- b. an alkaline solution-permeable, substantially opaque, light-reflective layer;
- c. a red-sensitive silver halide emulsion layer having associated therewith a cyan dye image-providing material;
- d. a green-sensitive silver halide emulsion layer having associated therewith a magenta dye image-providing material;
- and
- e. a blue-sensitive silver halide emulsion layer having associated therewith a yellow dye image-providing material;
- at least one of said dye image-providing materials being a nondiffusible p-sulfonamidoaniline or p-sulfonamidophenol having a color-providing moiety attached through the sulfonamido group, said sulfonamido compound being alkali-cleavable upon oxidation to release said diffusible color-providing moiety from the benzene nucleus;
- B. each said exposed siler halide emulsion layer with a silver halide developing agent thereby causing said developing agent to become oxidized;
- C. said oxidized developing agent thereby cross-oxidizing said sulfonamido compound;
- D. said sulfonamido compound then cleaving, thus forming an imagewise distribution of diffusible dye or dye precursor as a function of said imagewise exposure of each of said silver halide emulsion layers;
- and
- E. at least a portion of said imagewise distributions of diffusible dye or dye precursor diffusing to said dye image-receiving layer to provide an image viewable through said transparent support.
A photographic silver halide composition comprising a nondiffusible p-sulfonamidoaniline or p-sulfonamidophenol having a color-providing moiety attached through the sulfonamido group.
Dependencies are inferred from the claim text.