Developers for diffusion transfer film units

Claim 2

LINK is a connecting radical selected selected from the group consisting of an azoradical, a mercuri radical, an oxyradical, an alkylidene radical, a thioradical, a dithioradical and an azoxy radical;

Claim 3

LINK is a connecting radical selected from the group consisting of an azoradical, a mercuri radical, an oxyradical, an alkylidene radical, a thioradical, a dithioradical and an azoxy radical;

Claim 4

COUP is a coupler radical selected from the group consisting of a 5-pyrazolone coupler radical, a pyrazolotriazole coupler radical, a phenolic coupler radical and an open-chain ketomethylene coupler radical, said COUP being substituted in the coupling position with said LINK;

Claim 5

COUP is a coupler radical selected from the group consisting of a 5-pyrazolone coupler radical, a pyrazolotriazole coupler radical, a phenolic coupler radical and an open-chain ketomethylene coupler radical, said COUP being substituted in the coupling position with said link;

Claim 6

The film unit of claim 1 wherein said dye image receiving layer is coated on a separate support and is adapted to be superposed on said photosensitive element after exposure thereof.

Claim 7

The film unit of claim 3 wherein said rupturable container is so positioned during processing of said film unit that a compressive force applied to said container by said pressure-applying members will effect a discharge of the container''s contents between said dye image receiving layer and the outermost layer of said photosensitive element.

Claim 8

BALL is a photographically inert organic ballasting radical of such molecular size and configuration as to render said coupler nondiffusible during development in said alkaline processing composition;

Claim 9

BALL is a photographically inert organic ballasting radical of such molecular size and configuration as to render said coupler nondiffusible during development in said alkaline processing composition;

Claim 10

SOL is selected from the group consisting of a hydrogen atom and an acidic solubilizing group when said color-developing agent contains an acidic solubilizing group, and SOL is an acidic solubilizing group when said color-developing agent is free of an acidic solubilizing group; and

Claim 11

SOL is selected from the group consisting of a hydrogen atom and an acidic solubilizing group when said color developing agent contains an acidic solubilizing group, and SOL is an acidic solubilizing group when said color-developing agent is free of an acidic solubilizing group; and

Claim 12

The film unit of claim 1 wherein said developing agent is 4-amino-3-methoxy-N-ethyl-N- Beta -hydroxyethylaniline and is present in said rupturable container.

Claim 13

n is an integer of 1 to 2 when said LINK is an alkylidene radical, and n is 1 when said LINK is a radical selected from the group consisting of an azoradical, a mercuri radical, an oxyradical, a thioradical, a dithioradical and an azoxy radical.

Claim 14

The film unit of claim 1 wherein said photosensitive element comprises a support having thereon a red-sensitive silver halide emulsion layer having associated therewith a cyan dye image providing material comprising a nondiffusible coupler capable of reacting with oxidized aromatic primary amino color-developing agent to produce a diffusible cyan dye, a green-sensitive silver halide emulsion layer having associated therewith a magenta dye image providing material comprising a nondiffusible coupler capable of reacting with oxidized aromatic primary amino color-developing agent to produce a diffusible magenta dye, and a blue-sensitive silver halide emulsion layer having associated therewith a yellow dye image providing material comprising a nondiffusible coupler capable of reacting with oxidized aromatic primary amino color-developing agent to produce a diffusible yellow dye.

Claim 15

n is an integer of 1 to 2 when said LINK is an alkylidene radical, and n is 1 when said LINK is a radical selected from the group consisting of an azoradical, a mercuri radical, an oxyradical, a thioradical, a dithioradical and an azoxy radical.

Claim 16

In a photographic film unit which is adapted to be processed by passing said unit between a pair of juxtaposed pressure-applying members comprising: I. a photosensitive element comprising a support having thereon at least one color-forming unit comprising: a. a nuclei layer containing physical development nuclei and a nondiffusible coupler capable of reacting with oxidized aromatic primary amino color-developing agent to produce a diffusible dye; and b. a photosensitive silver halide emulsion layer containing an immobilizing coupler which is capable of reacting with oxidized aromatic primary aminO color-developing agent to form an immobile product; II. a dye image receiving layer; and III. a rupturable container containing an alkaline processing composition and which is adapted to be positioned during processing of said film unit so that a compressive force applied to said container by said pressure-applying members will effect a discharge of the container''s contents within said film unit; said film unit containing a silver halide solvent and an aromatic primary amino color-developing agent; the improvement comprising employing as said developing agent a 4-amino-3-alkoxy-N-ethyl-N- Beta -hydroxyethylaniline.

Claim 17

The film unit of claim 7 wherein said dye image receiving layer is located in said photosensitive element between said support and the lowermost photosensitive silver halide emulsion layer.

Claim 18

The film unit of claim 7 wherein said dye image receiving layer is coated on a separate support and is adapted to be superposed on said photosensitive element after exposure thereof.

Claim 19

The film unit of claim 9 wherein said rupturable container is so positioned during processing of said film unit that a compressive force applied to said container by said pressure-applying members will effect a discharge of the container''s contents between said dye image receiving layer and the outermost layer of said photosensitive element.

Claim 20

The photographic film unit of claim 7 wherein said developing agent is 4-amino-3-methoxy-N-ethyl-N- Beta -hydroxyethylaniline and is present in said rupturable container.

Claim 21

The film unit of claim 7 wherein said photosensitive element comprises a support having thereon the following layers in sequence: a. a nuclei layer containing physical development nuclei and a nondiffusible coupler capable of reacting with oxidized aromatic primary amino color-developing agent to produce a diffusible cyan dye; b. a red-sensitive silver halide emulsion layer containing an immobilizing coupler which is capable of reacting with oxidized aromatic primary amino color-developing agent to form an immobile product; c. an alkaline solution-permeable barrier layer for retaining soluble silver ion complex; d. a nuclei layer containing physical development nuclei and a nondiffusible coupler capable of reacting with oxidized aromatic primary amino color-developing agent to produce a diffusible magenta dye; e. a green-sensitive silver halide emulsion layer containing an immobilizing coupler which is capable of reacting with oxidized aromatic primary amino color-developing agent to form an immobile product; f. an alkaline solution-permeable barrier layer for retaining soluble silver ion complex; g. a nuclei layer containing physical development nuclei and a nondiffusible coupler capable of reacting with oxidized aromatic primary amino color-developing agent to produce a diffusible yellow dye; and h. a blue-sensitive silver halide emulsion layer containing an immobilizing coupler which is capable of reacting with oxidized aromatic primary amino color-developing agent to form an immobile product; each said nondiffusible coupler having the formula: DYE-LINK-(COUP-BALL)n or BALL-LINK-(COUP-SOL)n wherein:

Claim 22

The photographic film unit of claim 12 wherein said developing agent is 4-amino-3-methoxy-N-ethyl-N- Beta -hydroxyethylaniline and is present in said alkaline processing composition in said rupturable container and said silver halide solvent is also present in said rupturable container.

Claim 23

In 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, each said silver halide emulsion layer having associated therewith a nondiffusible coupler capable of reacting with oxidized aromatic primary amino color-developing agent to produce a diffusible dye; b. treating said photosensitive element with an alkaline processing composition to effect development of each of said exposed silver halide emulsion layers; c. forming an imagewise distribution of diffusible dye as a function of said imagewise exposure of each of said silver halide emulsion layers; and d. at least a portion of each of said imagewise distributions of diffusible dye diffusing to a dye image receiving layer; the improvement comprising employing as said developing agent a 4-amino-3-alkoxy-N-ethyl-N- Beta -hydroxyethylaniline.

Claim 24

The process of claim 14 wherein said treatment step (b) is effected by: a. superposing over the layer outermost from the support of said photosensitive element said dye image receiving layer coated on a support; b. positioning a rupturable container containing said alkaline processing composition between said exposed photosensitive element and said dye image receiving layer; and c. applying a compressive force to 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.

Claim 25

The process of claim 14 wherein said developing agent is 4-amino-3-methoxy-N-ethyl-N- Beta -hydroxyethylaniline.

Claim 26

The process of claim 14 wherein said photosensitive element comprises a support having thereon a red-sensitive silver halide emulsion layer having associated therewith a cyan dye image providing material comprising a nondiffusible coupler capable of reacting with oxidized aromatic primary amino color-developing agent to produce a diffusible cyan dye, a green-sensitive silver halide emulsion layer having associated therewith a magenta dye image providing material comprising a nondiffusible coupler capable of reacting with oxidized aromatic primary amino color-developing agent to produce a diffusible magenta dye, and a blue-sensitive silver halide emulsion having associated therewith a yellow dye image providing material comprising a nondiffusible coupler capable of reacting with oxidized aromatic primary amino color-developing agent to produce a diffusible yellow dye.

Claim 27

In a process of forming a transfer image comprising: I. imagewise a photosensitive element comprising a support having thereon at least one color-forming unit comprising: a. a nuclei layer containing physical development nuclei and a nondiffusible coupler capable of reacting with oxidized aromatic primary amino color-developing agent to producE a diffusible dye; and b. a photosensitive silver halide emulsion layer containing an immobilizing coupler which is capable of reacting with oxidized aromatic primary amino color-developing agent to form an immobile product; II. treating said photosensitive element with an alkaline processing composition in the presence of an aromatic primary amino color-developing agent and a silver halide solvent; III. thereby effecting development of each of said exposed silver halide emulsion layers, thus causing said aromatic primary amino color-developing agent to become oxidized imagewise; IV. said oxidized developing agent reacting with said immobilizing coupler present in each said photosensitive silver halide emulsion layer to form an immobile product; V. whereby remaining silver halide in each said silver halide emulsion layer corresponding to unexposed and thus undeveloped areas forms a soluble silver complex with said silver halide solvent and transfers to each said adjacent nuclei layer; VI. whereby said transferred silver complex is reduced in said nuclei layer, thus causing said developing agent to become oxidized; VII. said oxidized developing agent reacting with said nondiffusible coupler present in each said nuclei layer to form an imagewise distribution of diffusible dye as a function of said imagewise exposure of each said silver halide emulsion layer; and VIII. whereby at least a portion of each said imagewise distribution of diffusible dye diffuses to a dye image-receiving layer to provide a positive dye image; the improvement comprising employing as said developing agent a 4-amino-3-alkoxy-N-ethyl-N- Beta -hydroxyethylaniline.

Claim 28

The process of claim 18 wherein said treatment step (II) is effected by: a. superposing over the layer outermost from the support of said exposed photosensitive element said dye image receiving layer coated on a support; b. positioning a rupturable container containing said alkaline processing composition between said exposed photosensitive element and said dye image receiving layer; and c. applying a compressive force to 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.

Claim 29

The process of claim 18 wherein said developing agent is 4-amino-3-methoxy-N-ethyl-N- Beta -hydroxyethylaniline.

Claim 30

The process of claim 18 wherein said photosensitive element comprises a support having thereon the following layers in sequence: a. a nuclei layer containing physical development nuclei and a nondiffusible coupler capable of reacting with oxidized aromatic primary amino color-developing agent to produce a diffusible cyan dye; b. a red-sensitive silver halide emulsion layer containing an immobilizing coupler which is capable of reacting with oxidized aromatic primary amino color-developing agent to form an immobile product; c. an alkaline solution-permeable barrier layer for retaining soluble silver ion complex; d. a nuclei layer containing physical development nuclei and a nondiffusible coupler capable of reacting with oxidized aromatic primary amino color-developing agent to produce a diffusible magenta dye; e. a green-sensitive silver halide emulsion layer containing an immobilizing coupler which is capable of reacting with oxidized aromatic primary amino color-developing agent to form an immobile product; f. an alkaline solution-permeable barrier layer for retaining soluble silver ion complex; g. a nuclei layer containing physical development nuclei and a nondiffusible coupler capable of reacting with oxidized aromatic primary amino color-developing agent to produce a diffusible yellow dye; and h. a blue-sensitive silver halide emulsion layer containing an immobilizing coupler which is capable of reacting with oxidized aromatic primary amino color-developing agent to form an immobile product; each said nondiffusible coupler having the formula: DYE-LINK-(COUP-BALL)n or BALL- LINK-(COUP-SOL)n wherein:

Claim 31

The process of claim 21 wherein said developing agent is 4-amino-3-methoxy-N-ethyl-N- Beta -hydroxyethylaniline.