Photographic products and processes with silver complexes as antifoggants

Claim 2

A PHOTOSENSITIVE SILVER HALIDE EMULSION HAVING ASSOCIATED THEREWITH A STABLE, WATER-SOLUBLE COMPOUND OF THE FORMULA:

Claim 3

A product as defined in claim 1 wherein said emulsion includes spectral sensitizing agents.

Claim 4

A product as defined in claim 1 wherein said emulsion includes chemical sensitizing agents.

Claim 5

The product as defined in claim 1 wherein L is a tetraamine.

Claim 6

The product as defined in claim 4 wherein L is

Claim 7

The product as defined in claim 4 wherein L is:

Claim 8

The product as defined in claim 4, wherein L is:

Claim 9

The product as defined in claim 4 wherein L is:

Claim 10

The product as defined in claim 1 wherein X is NO3.

Claim 11

The product as defined in claim 1 wherein said silver halide emulsion is carried on a support.

Claim 12

A photographic silver diffusion transfer film unit which comprises photosensitive silver halide, silver precipitating nuclei and associated with said silver halide, a stable, water-soluble compound of the formula: AgL 2 2X wherein L is a non-aromatic macrocyclic ligand having four electron donor atoms and is represented by the formula:

Claim 13

A photographic silver diffusion transfer film unit which comprises photosensitive silver halide, silver precipitating nuclei and associated with said silver halide, a stable, water-soluble compound of the formula: AgL 2 2X wherein L is a non-aromatic macrocyclic ligand having four electron donor atoms and is represented by the formula:

Claim 14

A product as defined in claim 11 wherein said film unit includes a common support carrying a layer comprising silver precipitating nuclei and a layer comprising silver halide crystals.

Claim 15

A product as defined in claim 12 wherein said film unit is a permanent laminate.

Claim 16

A product as defined in claim 12 wherein said common support is transparent.

Claim 17

A photographic silver diffusion transfer film unit as defined in claim 14 which includes An additive color screen intermediate said transparent common support and next adjacent essential layer.

Claim 18

In a photosensitive element including at least one light-sensitive silver halide layer wherein each of which has a dye image-providing material associated therewith, the improvement which comprises including in at least one of said silver halide layers a stable, water-soluble compound of the formula: AgL 2 2X wherein L is a non-aromatic macrocyclic ligand having four electron donor atoms and is represented by the formula:

Claim 19

In a photosensitive element including at least one light-sensitive silver halide layer wherein each of which has a dye image-providing material associated therewith, the improvement which comprises including in at least one of said silver halide layers a stable, water-soluble compound of the formula: AgL 2 2X wherein L is a non-aromatic macrocyclic ligand having four electron donor atoms and is represented by the formula:

Claim 20

An element as defined in claim 16 which includes a red-sensitive gelatino silver halide emulsion having a cyan dye image-providing material associated therewith; a green-sensitive gelatino silver halide emulsion having a magenta dye image-providing material associated therewith; and a blue-sensitive gelatino silver halide emulsion having a yellow dye image-providing material associated therewith.

Claim 21

An element as defined in claim 16 which includes a positive component including at least a dyeable stratum.

Claim 22

A photographic film unit which comprises, in combination: a photosensitive element having a diffusion transfer image-receiving element affixed at least one edge thereof, said photosensitive element comprising a support carrying: a. a red-sensitive silver halide emulsion having associated therewith a cyan dye developer; b. a green-sensitive silver halide emulsion having associated therewith a magenta dye developer; c. a blue-sensitive silver halide emulsion having associated therewith a yellow dye developer; at least one of said silver halide emulsions having disposed therein a stable, water-soluble compound of the formula: AgL 2 2X wherein L is a non-aromatic macrocyclic ligand having four electron donor atoms and is represented by the formula:

Claim 23

A photographic film unit which comprises, in combination: a photosensitive element having a diffusion transfer image-receiving element affixed at least one edge thereof, said photosensitive element comprising a support carrying: a. a red-sensitive silver halide emulsion having associated therewith a cyan dye developer; b. a green-sensitive silver halide emulsion having associated therewith a magenta dye developer; c. a blue-sensitive silver halide emulsion having associated therewith a yellow dye developer; at least one of said silver halide emulsions having disposed therein a stable, water-soluble compound of the formula: AgL 2 2X wherein L is a non-aromatic macrocyclic ligand having four electron donor atoms and is represented by the formula:

Claim 24

The product as defined in claim 19 wherein said compound is disposed in each of said silver halide emulsion layers.

Claim 25

The product as defined in claim 19 including a rupturable container retaining an aqueous alkaline processing composition affixed one edge of said photosensitive and said image-receiving elements and adapted upon rutprue to distribute its contents intermediate said superposed photosensitive and said image-receiving elements.

Claim 26

The product as defined in claim 19 wherein said photographic film unit comprises a composite structure comprising said photosensitive element and said image-receiving element permanently affixed each to the other in superposed relationship, the support layers of each of said elements comprising the extremities of said composite structure.

Claim 27

A photographic process which comprises developing an exposed photosensitive element comprising an exposed silver halide emulsion containing a stable, water-soluble compound of the formula: AgL 2 2X wherein L is a non-aromatic macrocyclic ligand having four electron donor atoms and is represented by the formula:

Claim 28

A photographic process which comprises developing an exposed photosensitive element comprising an exposed silver halide emulsion containing a stable, water-soluble compound of the formula: AgL 2 2X wherein L is a non-aromatic macrocyclic ligand having four electron donor atoms and is represented by the formula:

Claim 29

A silver diffusion transfer photographic process which comprises, in combination, the steps of: a. exposing a photographic film unit comprising photosensitive silver halide and silver precipitating nuclei wherein said silver halide has associated therewith a stable, water-soluble compound of the formula: AgL 2 2X wherein L is a non-aromatic macrocyclic ligand having four electron donor atoms and is represented by the formula:

Claim 30

A silver diffusion transfer photographic process which comprises, in combination, the steps of: a. exposing a photographic film unit comprising photosensitive silver halide and silver precipitating nuclei wherein said silver halide has associated therewith a stable, water-soluble compound of the formula: AgL 2 2X wherein L is a non-aromatic macrocyclic ligand having four electron donor atoms and is represented by the formula:

Claim 31

A diffusion transfer color photographic process as defined in claim 24 wherein said film unit includes a color screen and exposure of said film unit is accomplished by radiation transmitted through said screen.

Claim 32

A diffusion transfer multicolor photographic process as defined in claim 25 wherein said color screen comprises a trichromatic additive color screen comprising red, green and blue optical filter elements in a screen pattern.

Claim 33

A silver diffusion transfer photographic process as defined in claim 25 which comprises, in combination, the steps of: a. exposing a film unit which comprises a permanent laminate which includes a support carrying on one surface a layer comprising silver precipitating nuclei and a layer comprising photosensitive silver halide having associated therewith a stable, water-soluble compound of the formula: AgL 2 2X wherein L is a non-aromatic macrocyclic ligand having four electron donor atoms and is represented by the formula:

Claim 34

A process for forming photographic images which comprises, in combination, the steps of: a. exposing a photographic film unit which comprises a plurality of layers including at least a first photosensitive silver halide layer having associated therewith diffusion transfer dye image-providing material and a stable, water-soluble compound of the formula: AgL 2 2X wherein L is a non-aromatic macrocyclic ligand having four electron donor atoms and is represented by the formula:

Claim 35

A process for forming photographic images which comprises, in combination, the steps of: a. exposing a photographic film unit which comprises a plurality of layers including at least a first photosensitive silver halide layer having associated therewith diffusion transfer dye image-providing material and a stable, water-soluble compound of the formula: AgL 2 2X wherein L is a non-aromatic macrocyclic ligand having four electron donor atoms and is represented by the formula: