Diffusion transfer processes and elements comprising dye developers and bis-sulfonyl alkane speed-increasing agents

Claim 2

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 3

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 4

The film unit of claim 4 wherein said photosensitive element comprises a support having thereon the following layers in sequence: (a) a cyan dye developer layer, (b) a red-sensitive silver halide emulsion layer, (c) a magenta dye developer layer, (d) a green-sensitive silver halide emulsion layer, (e) a yellow dye developer layer, and (f) a blue-sensitive silver halide emulsion layer.

Claim 5

The film unit of claim 5 wherein said 1,1 bis-sulfonyl alkane is provided in said rupturable container.

Claim 6

The film unit of claim 5 wherein said 1,1 bis-sulfonyl alkane is provided in a layer of said photosensitive element.

Claim 7

The film unit of claim 5 wherein said speed increasing agent has the formula wherein R1 and R2 each represent an alkyl group containing one to four carbon atoms and R3 represents H or an alkyl group containing one to four carbon atoms.

Claim 8

The film unit of claim 8 wherein R1 and R2 each represent methyl, ethyl, hydroxyethyl, carboxymethyl or carboxyethyl groups and R3 represents H.

Claim 9

The film unit of claim 8 wherein R1 and R2 each represent a methyl group.

Claim 10

The film unit of claim 5 wherein the photosensitive element contains an auxiliary developing agent.

Claim 11

A photographic film unit which is adapted to be processed by passing said unit between a pair of juxtaposed pressure-applying members comprising: A. a photosensitive element comprising a support having thereon the following layers in sequence: (a) a cyan dye developer layer, (b) a red-sensitive silver halide emulsion layer, (c) a magenta dye developer layer, (d) a green-sensitive silver halide emulsion layer, (e) a yellow dye developer layer, and (f) a blue-sensitive silver halide emulsion layer; B. a dye image-receiving layer coated on a support and adapted to be superposed over said blue-sensitive silver halide emulsion layer after exposure of said photosensitive element; and C. a rupturable container containing an alkaline processing composition 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 between said dye image-receiving layer and said blue-sensitive silver halide emulsion layer of said photosensitive element, said rupturable container additionally containing a 1,1 bis-sulfonyl alkane in an amount of between about 0.1 and about 1.0 percent by weight of said processing composition.

Claim 12

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 dye developer, 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 developer 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 developer diffusing to a dye image-receiving layer; said development being effected in the presence of a 1,1 bis-sulfonyl alkane speed increasing agent.

Claim 13

The process of claim 13 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 14

The process of claim 14 wherein said photosensitive element comprises a support having thereon the following layers in sequence: a. a cyan developer layer, b. a red-sensitive silver halide emulsion layer, c. a magenta dye developer layer, d. a green-sensitive silver halide emulsion layer, e. a yellow dye developer layer and f. a blue-sensitive silver halide emulsion layer.

Claim 15

The process of claim 15 wherein said 1,1 bis-sulfonyl alkane is provided in said rupturable container.

Claim 16

The process of claim 15 wherein said 1,1 bis-sulfonyl alkane is provided in a layer of said photosensitive element.

Claim 17

The process of claim 15 wherein said speed increasing agent has the formula wherein R1 and R2 each represent an alkyl group containing one to four carbon atoms and R3 represents H or an alkyl group containing one to four carbon atoms.

Claim 18

The process of claim 18 wherein R1 and R2 each represents methyl, ethyl, hydroxyethyl, carboxymethyl or carboxyethyl groups and R3 represents H.

Claim 19

The process of claim 10 wherein R1 and R2 each represent a methyl group.

Claim 20

The process of claim 15 wherein said alkaline processing composition contains sodium thiosulfate.

Claim 21

A process for producing a photographic transfer image in color comprising: a. imagewise exposing a photosensitive element comprising a support having thereon the following layers in sequence: a. a cyan dye developer layer, b. a red-sensitive silver halide emulsion layer, c. a magenta dye developer layer, d. a green-sensitive silver halide emulsion layer, e. a yellow dye developer layer, and f. a blue-sensitive silver halide emulsion layer; b. superposing over the layer outermost from the support of said photosensitive element a dye image-receiving layer coated on a support; c. positioning a rupturable container containing an alkaline processing composition between said exposed photosensitive element and said dye image-receiving layer; d. 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; e. thereby effecting development of each of said exposed silver halide emulsion layers; f. forming an imagewise distribution of diffusible dye developer as a function of said imagewise exposure of each of said silver halide emulsion layers; and g. at least a portion of each of said imagewise distributions of diffusible dye developer diffusing to said dye image-receiving layer; said rupturable container additionally containing a 1,1 bis-sulfonyl alkane in an amount of between about 0.1 and about 1.0 percent by weight of said processing composition.

Claim 22

A photosensitive element comprising a support having thereon at least one photosensitive silver halide emulsion layer, each said silver halide emulsion having associated therewith a dye developer, said photosensitive element containing a 1,1 bis-sulfonyl alkane speed-increasing agent.

Claim 23

A photosensitive element comprising a support having thereon the following layers in sequence: a. a cyan dye developer layer, b. a red-sensitive silver halide emulsion layer, c. a magenta dye developer layer, D. a green-sensitive silver halide emulsion layer, e. a yellow dye developer layer, and f. a blue-sensitive silver halide emulsion layer; said photosensitive element containing a 1,1 bis-sulfonyl alkane speed-increasing agent.

Claim 24

The photosensitive element of claim 24 wherein said speed-increasing agent has the formula: wherein R1 and R2 each represent an alkyl group containing one to four carbon atoms and R3 represents H or an alkyl group containing one to four carbon atoms.

Claim 25

The photosensitive element of claim 25 wherein R1 and R2 each represent methyl, ethyl, hydroxyethyl, carboxymethyl or carboxyethyl groups and R3 represents H.

Claim 26

The photosensitive element of claim 25 wherein R1 and R2 each represent a methyl group.

Claim 27

The photosensitive element of claim 24 wherein said 1,1 bis-sulfonyl alkane speed-increasing agent is present in an amount of from about 0.1 to about 1.0 moles per mole of silver halide in the photosensitive element.

Claim 28

The photosensitive element of claim 24 which also contains an auxiliary developing agent.

Claim 29

A reception element comprising a support having thereon a dye image-receiving layer, said element containing a 1,1 bis-sulfonyl alkane.

Claim 30

The reception element of claim 30 wherein said 1,1 bis-sulfonyl alkane has the formula wherein R1 and R2 each represent an alkyl group containing one to four carbon atoms and R3 represents H or an alkyl group containing one to four carbon atoms.

Claim 31

The reception element of claim 31 wherein R1 and R2 each represent methyl, ethyl, hydroxyethyl, carboxymethyl or carboxyethyl groups and R3 represents H.

Claim 32

The reception element of claim 32 wherein R1 and R2 each represent a methyl group.