Photographic element and process utilizing metal complex color masking dyes

Claim 2

A photographic element comprising a support having thereon at least one silver halide emulsion layer having associated therewith a compound for providing a dye image in exposed areas of said element, and an essentially colorless, immobile, ligand-releasing compound of the structure LIG-X wherein X is a group which, as a function of silver halide development is cleaved from LIG, and LIG is a ligand capable of complexing with metal ions while joined to X to form a color dye image in the unexposed areas of said element.

Claim 3

The element of claim 1 wherein X is a coupler moiety and LIG is joined to the coupling position thereof so that, upon reaction of said coupler moiety with oxidized color developing agent, LIG is cleaved from X.

Claim 4

The element of claim 1 wherein LIG is derived from a compound having the structure: ##STR11## wherein m is 0 or a positive integer of 1 to 3, n and p are independently 0 or 1, represents a single or double bond, Z is R 1 --N═, O═, S═, R 1 --P═, (R 1 ) 2 P-- or (R 1 ) 3 P═, and when Z is (R 1 ) 2 P--, n is 1, otherwise n is 0, R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are independently hydrogen, amino, hydroxy, mercapto, alkoxy, alkyl, aryl or a heterocyclic moiety, and when R 6 is so defined, p is 1 and is a single bond, if m is 0, R 1 and R 2 , R 2 and R 3 , and R 3 and R 4 , taken together, can independently represent the carbon and heteroatoms necessary to complete a substituted or unsubstituted carbocyclic or heterocyclic nucleus, or, if m is 1 to 3, R 1 and R 2 , R 5 and R 6 , and R 3 and R 4 , taken together, can independently represent the carbon and heteroatoms necessary to complete a substituted or unsubstituted heterocyclic nucleus, and when R 5 and R 6 are so defined, p is 0 when is a double bond, and p is 1 when is a single bond.

Claim 5

The element of claim 3 wherein m is 0 or 1 and Z is R 1 --N═.

Claim 6

The element of claim 1 wherein X is derived from a color coupler compound.

Claim 7

A multilayer photographic element comprising a support having thereon a red-sensitive silver halide emulsion unit having associated therewith a cyan dye image-providing material, a green-sensitive silver halide emulsion unit having associated therewith a magenta dye image-providing material and a blue-sensitive silver halide emulsion unit having associated therewith a yellow dye image-providing silver halide material, said element having associated with at least one of said units an essentially colorless, immobile, ligand-releasing compound of the structure LIG-X wherein X is a group which, as a function of silver halide development, is cleaved from LIG, and LIG is a ligand capable of complexing with metal ions while joined to X to form a color dye image in the unexposed areas of said element.

Claim 8

A multilayer photographic element comprising a support having thereon a red-sensitive silver halide emulsion unit having associated therewith a cyan dye image-providing material, a green-sensitive silver halide emulsion unit having associated therewith a magenta dye image-providing material and a blue-sensitive silver halide emulsion unit having associated therewith a yellow dye image-providing silver halide material, said element having associated with at least one of said units an essentially colorless, immobile, ligand-releasing compound of the structure LIG-X wherein X is a group which, as a function of silver halide development, is cleaved from LIG, and LIG is a ligand capable of complexing with metal ions while joined to X to form a color dye image in the unexposed areas of said element.

Claim 9

The element of claim 6 wherein LIG is derived from a compound having the structure: ##STR12## wherein m is 0 or a positive integer of 1 to 3, n and p are independently 0 or 1, represents a single or double bond, Z is R 1 --N═, O═, S═, R 1 --P═, (R 1 ) 2 P-- or (R 1 ) 3 P═, and when Z is (R 1 ) 2 P--, n is 1, otherwise n is 0, R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are independently hydrogen, amino, hydroxy, mercapto, alkoxy, alkyl, aryl or a heterocyclic moiety, and when R 6 is so defined, p is 1 and is a single bond, if m is 0, R 1 and R 2 , R 2 and R 3 , and R 3 and R 4 , taken together, can independently represent the carbon and heteroatoms necessary to complete a substituted or unsubstituted carbocyclic or heterocyclic nucleus, or, if m is 1 to b 3, R 1 and R 2 , R 5 and R 6 , and R 3 and R 4 , taken together, can independently represent the carbon and heteroatoms necessary to complete a substituted or unsubstituted heterocyclic nucleus, and when R 5 and R 6 are so defined, p is 0 when is a double bond, and p is 1 when is a single bond.

Claim 10

The element of claim 6 wherein LIG-X provides a magenta dye image in said unexposed areas.

Claim 11

The element of claim 8 wherein said magenta dye image is provided by a complex of ferrous ions and 1-hydroxy-N-[4-(2,4-di-t-pentylphenoxy)butyl]-4-[4'-(2,2':6',2"-terpyridyl)oxy]-2-naphthamide.

Claim 12

The element of claim 6 wherein said LIG-X forms a color dye image with ferrous ions.

Claim 13

A process of color correction in an imagewise exposed element of claim 1, said process comprising the steps of: (a) developing the imagewise exposed areas of said element with a color developing agent, thereby cleaving LIG from X and washing substantially all of the cleaved LIG out of said element; and (b) treating said element with metal ions to form a color masking dye with LIG-X in the unexposed areas of said element.

Claim 14

The process of claim 11 wherein said color masking dye is a magenta dye.

Claim 15

The process of claim 11 wherein said metal ions are ferrous ions.

Claim 16

The process of claim 11 wherein LIG is derived from a compound having the structure: ##STR13## wherein m is 0 or a positive integer of 1 to 3, n and p are independently 0 or 1, represents a single or double bond, Z is R 1 --N═, O═, S═, R 1 --P═, (R 1 ) 2 P-- or (R 1 ) 3 P═, and when Z is (R 1 ) 2 P--, n is 1, otherwise n is 0, R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are independently hydrogen, amino, hydroxy, mercapto, alkoxy, alkyl, aryl or a heterocyclic moiety, and when R 6 is so defined, p is 1 and is a single bond, if m is 0, R 1 and R 2 , R 2 and R 3 , and R 3 and R 4 , taken together, can independently represent the carbon and heteroatoms necessary to complete a substituted or unsubstituted carbocyclic or heterocyclic nucleus, or, if m is 1 to 3, R 1 and R 2 , R 5 and R 6 , and R 3 and R 4 , taken together, can independently represent the carbon and heteroatoms necessary to complete a substituted or unsubstituted heterocyclic nucleus, and when R 5 and R 6 are so defined, p is 0 when is a double bond, and p is 1 when is a single bond.

Claim 17

The process of claim 14 wherein m is 0 or 1 and Z is R 1 --N═.