Process for producing positive color diffusion transfer images using redox dye releasers

Claim 2

A process for producing a positive photographic transfer color-image which comprises: 1. providing an imagewise exposed photographic element comprised of a support having coated thereon an imagewise exposed, light-sensitive negative-working silver halide emulsion layer and associated therewith a sulfonamido-type dye-releasing redox agent of the formula: ##STR22## wherein: a. Dye is a dye or dye precursor moiety which is diffusible when released from the dye releasing redox agent; b. Ballast is an organic ballasting radical of such molecular size and configuration as to render the sulfonamido-type dye-releasing redox agent non-diffusible during development in an alkaline processing composition; c. G is OR or NHR 1 wherein R is hydrogen or a hydrolyzable moiety and R 1 is hydrogen or an alkyl group of 1 to 22 carbon atoms; and d. n is a positive integer of 1 or 2 and is 2 when G is OR or when R 1 is hydrogen or an alkyl group of less than 8 carbon atoms; 2.

Claim 3

developing imagewise exposed silver halide in the silver halide emulsion layer to produce a silver image without concurrent release of the Dye moiety of the redox dye-releasing agent; 3. fogging residual silver halide in the silver halide emulsion layer; 4. developing the fogged residual silver halide in the silver halide emulsion layer and currently releasing the Dye moiety of the dye-releasing redox agent in the areas of the silver halide emulsion layer corresponding to those containing the fogged residual silver halide; and 5. permitting at least a portion of the released Dye moiety to diffuse to a

Claim 4

developing imagewise exposed silver halide in the silver halide emulsion layer to produce a silver image without concurrent release of the Dye moiety of the redox dye-releasing agent; 3. fogging residual silver halide in the silver halide emulsion layer; 4. developing the fogged residual silver halide in the silver halide emulsion layer and currently releasing the Dye moiety of the dye-releasing redox agent in the areas of the silver halide emulsion layer corresponding to those containing the fogged residual silver halide; and 5. permitting at least a portion of the released Dye moiety to diffuse to a

Claim 5

dye image receiving means. 2. A process according to claim 1 wherein the first development step is performed using a silver halide developer having a pH of less than 10 and the second development step is performed using a silver halide developer having a pH in excess of 10.

Claim 6

A process for producing a multicolor positive photographic transfer image which comprises: 1. providing an imagewise exposed photographic element comprising a support having coated thereon a red-sensitized color-forming unit, a green-sensitized color-forming unit and a blue sensitive color-forming unit, each of the color-forming units being comprised of an imagewise exposed, light-sensitive negative-working silver halide emulsion layer and associated therewith a sulfonamido-type dye-releasing redox agent of the formula: ##STR23## wherein: a. Dye is dye or dye precursor moiety which is diffusible when released from the dye-releasing redox agent; b. Ballast is an organic ballasting radical of such molecular size and configuration as to render the sulfonamido-type dye-releasing redox agent nondiffusible during development in an alkaline processing composition; c. G is OR or NHR 1 wherein R is hydrogen or a hydrolyzable moiety and R 1 is hydrogen or an alkyl group of 1 to 22 carbon atoms; and d. n is a positive integer of 1 or 2 and is 2 when G is OR or when R 1 is hydrogen or an alkyl group of less than 8 carbon atoms; with the further proviso that in the red-sensitized color-forming unit the Dye moiety is chosen to yield a cyan image dye, in the green-sensitized color-forming unit the Dye moiety is chosen to yield a magenta dye and in the blue sensitive color-forming unit the Dye moiety is chosen to yield a yellow image dye;

Claim 7

A process for producing a multicolor positive photographic transfer image which comprises: 1. providing an imagewise exposed photographic element comprising a support having coated thereon a red-sensitized color-forming unit, a green-sensitized color-forming unit and a blue sensitive color-forming unit, each of the color-forming units being comprised of an imagewise exposed, light-sensitive negative-working silver halide emulsion layer and associated therewith a sulfonamido-type dye-releasing redox agent of the formula: ##STR23## wherein: a. Dye is dye or dye precursor moiety which is diffusible when released from the dye-releasing redox agent; b. Ballast is an organic ballasting radical of such molecular size and configuration as to render the sulfonamido-type dye-releasing redox agent nondiffusible during development in an alkaline processing composition; c. G is OR or NHR 1 wherein R is hydrogen or a hydrolyzable moiety and R 1 is hydrogen or an alkyl group of 1 to 22 carbon atoms; and d. n is a positive integer of 1 or 2 and is 2 when G is OR or when R 1 is hydrogen or an alkyl group of less than 8 carbon atoms; with the further proviso that in the red-sensitized color-forming unit the Dye moiety is chosen to yield a cyan image dye, in the green-sensitized color-forming unit the Dye moiety is chosen to yield a magenta dye and in the blue sensitive color-forming unit the Dye moiety is chosen to yield a yellow image dye;

Claim 8

developing imagewise exposed silver halide in the silver halide emulsion layers to produce a silver image without concurrent release of the Dye moiety of the associated redox dye-releasing agent; 3. fogging residual silver halide in the silver halide emulsion layers; 4. developing the fogged residual silver halide in the silver halide emulsion layers and currently releasing the Dye moiety of the dye-releasing redox agents in the areas of the silver halide emulsion layers corresponding to those containing the fogged residual silver halide; and 5. permitting at least a portion of the released Dye moieties to diffuse to a dye image receiving means.

Claim 9

developing imagewise exposed silver halide in the silver halide emulsion layers to produce a silver image without concurrent release of the Dye moiety of the associated redox dye-releasing agent; 3. fogging residual silver halide in the silver halide emulsion layers; 4. developing the fogged residual silver halide in the silver halide emulsion layers and currently releasing the Dye moiety of the dye-releasing redox agents in the areas of the silver halide emulsion layers corresponding to those containing the fogged residual silver halide; and 5. permitting at least a portion of the released Dye moieties to diffuse to a dye image receiving means.

Claim 10

A process according to claim 3 wherein the first development step is performed using a silver halide developer having a pH of less than 10 and the second development step is performed using a silver halide developer having a pH in excess of 10.

Claim 11

A process for producing a positive photographic transfer color-image which comprises: 1. providing an imagewise exposed photographic element comprised of a support having coated thereon an imagewise exposed, light-sensitive negative-working silver halide emulsion layer and associated therewith a hydroquinone type dye-releasing redox agent of the formula: ##STR24## wherein: a. each R represents hydrogen or a hydrolyzable moiety; b. Ballast is a photographically inert organic ballasting radical of such molecular size and configuration as to render the dye-releasing redox agent nondiffusible during development in an alkaline processing composition; c. Dye is a diffusible dye or dye precursor moiety which is diffusible when released from the dye-releasing redox agents; d. Link is an S, O or SO 2 linking group; e. n is an integer of 1 to 3; and f. m is an integer of 1 to 3;

Claim 12

A process for producing a positive photographic transfer color-image which comprises: 1. providing an imagewise exposed photographic element comprised of a support having coated thereon an imagewise exposed, light-sensitive negative-working silver halide emulsion layer and associated therewith a hydroquinone type dye-releasing redox agent of the formula: ##STR24## wherein: a. each R represents hydrogen or a hydrolyzable moiety; b. Ballast is a photographically inert organic ballasting radical of such molecular size and configuration as to render the dye-releasing redox agent nondiffusible during development in an alkaline processing composition; c. Dye is a diffusible dye or dye precursor moiety which is diffusible when released from the dye-releasing redox agents; d. Link is an S, O or SO 2 linking group; e. n is an integer of 1 to 3; and f. m is an integer of 1 to 3;

Claim 13

developing imagewise exposed silver halide in the silver halide emulsion layer to produce a silver image without concurrent release of the Dye moiety of the redox dye-releasing agent; 3. fogging residual silver halide in the silver halide emulsion layer; 4. developing the fogged residual silver halide in the silver halide emulsion layer and currently releasing the Dye moiety of the dye-releasing redox agent in the areas of the silver halide emulsion layer corresponding to those containing the fogged residual silver halide; and 5. permitting at least a portion of the released Dye moiety to diffuse to a dye image receiving means.

Claim 14

developing imagewise exposed silver halide in the silver halide emulsion layer to produce a silver image without concurrent release of the Dye moiety of the redox dye-releasing agent; 3. fogging residual silver halide in the silver halide emulsion layer; 4. developing the fogged residual silver halide in the silver halide emulsion layer and currently releasing the Dye moiety of the dye-releasing redox agent in the areas of the silver halide emulsion layer corresponding to those containing the fogged residual silver halide; and 5. permitting at least a portion of the released Dye moiety to diffuse to a dye image receiving means.

Claim 15

A process according to claim 5 wherein the first development step is performed using a silver halide developer having a pH of less than 10 and the second development step is performed using a silver halide developer having a pH in excess of 10.

Claim 16

A process for producing a multicolor positive photographic transfer image which comprises: 1. providing an imagewise exposed photographic element comprising a support having coated thereon a red-sensitized color-forming unit, a green-sensitized color-forming unit and a blue sensitive color-forming unit, each of the color-forming units being comprised of an imagewise exposed, light-sensitive negative-working silver halide emulsion layer and associated therewith a hydroquinone-type dye-releasing redox agent of the formula: ##STR25## wherein: a. each R represents hydrogen or a hydrolyzable moiety; b. Ballast is a photographically inert organic ballasting radical of such molecular size and configuration as to render the dye-releasing redox agent nondiffusible during development in an alkaline processing composition; c. Dye is a dye or dye precursor moiety which is diffusible when released from the dye-releasing redox agent; d. Link is an S, O or SO 2 group; e. n is an integer of 1 to 3; and f. m is an integer of 1 to 3; with the further proviso that in the red-sensitized color-forming unit the Dye moiety is chosen to yield a cyan image dye, in the green-sensitized color-forming unit the Dye moiety is chosen to yield a magenta dye and in the blue sensitive color-forming unit the Dye moiety is chosen to yield a yellow image dye;

Claim 17

A process for producing a multicolor positive photographic transfer image which comprises: 1. providing an imagewise exposed photographic element comprising a support having coated thereon a red-sensitized color-forming unit, a green-sensitized color-forming unit and a blue sensitive color-forming unit, each of the color-forming units being comprised of an imagewise exposed, light-sensitive negative-working silver halide emulsion layer and associated therewith a hydroquinone-type dye-releasing redox agent of the formula: ##STR25## wherein: a. each R represents hydrogen or a hydrolyzable moiety; b. Ballast is a photographically inert organic ballasting radical of such molecular size and configuration as to render the dye-releasing redox agent nondiffusible during development in an alkaline processing composition; c. Dye is a dye or dye precursor moiety which is diffusible when released from the dye-releasing redox agent; d. Link is an S, O or SO 2 group; e. n is an integer of 1 to 3; and f. m is an integer of 1 to 3; with the further proviso that in the red-sensitized color-forming unit the Dye moiety is chosen to yield a cyan image dye, in the green-sensitized color-forming unit the Dye moiety is chosen to yield a magenta dye and in the blue sensitive color-forming unit the Dye moiety is chosen to yield a yellow image dye;

Claim 18

developing imagewise exposed silver halide in the silver halide emulsion layers to produce a silver image without concurrent release of the Dye moiety of the associated redox dye-releasing agent; 3. fogging residual silver halide in the silver halide emulsion layers; 4. developing the fogged residual silver halide in the silver halide emulsion layer and currently releasing the Dye moiety of the dye-releasing redox agents in the areas of the silver halide emulsion layers corresponding to those containing the fogged residual silver halide; and 5. permitting at least a portion of the released Dye moieties to diffuse to a dye image receiving means.

Claim 19

developing imagewise exposed silver halide in the silver halide emulsion layers to produce a silver image without concurrent release of the Dye moiety of the associated redox dye-releasing agent; 3. fogging residual silver halide in the silver halide emulsion layers; 4. developing the fogged residual silver halide in the silver halide emulsion layer and currently releasing the Dye moiety of the dye-releasing redox agents in the areas of the silver halide emulsion layers corresponding to those containing the fogged residual silver halide; and 5. permitting at least a portion of the released Dye moieties to diffuse to a dye image receiving means.

Claim 20

A process according to claim 7 wherein the first development step is performed using a silver halide developer having a pH of less than 10 and the second development step is performed using a silver halide developer having a pH in excess of 10.