{40 onium indophenoxides

Claim 2

A process according to claim 1 wherein said photographic color coupler is a nondiffusible compound present in at least one layer of said photographic element.

Claim 3

A process according to claim 1 wherein said ''onium indophenoxide image dye is substantially nondiffusible in said photographic element.

Claim 4

A process according to claim 1 wherein said ''onium compound is a quaternary ammonium salt and is provided in sufficient quantity To combine with substantially all of said reaction product.

Claim 5

A process according to claim 1 wherein said photographic color coupler is a phenolic compound, a pyrazolone compound or a compound having an open-chain active methylene group.

Claim 6

A process according to claim 1 wherein said p-aminophenol has the formula: H2-N-Ar-OH where Ar is an arylene group.

Claim 7

A process according to claim 7 wherein said arylene group contains halogen atoms in positions ortho or meta to said nitrogen substitution.

Claim 8

A process according to claim 1 wherein said ''onium compound is a water-soluble quaternary ammonium salt which is contacted with the reaction product of said photographic color coupler and said p-aminophenol.

Claim 9

A process according to claim 1 wherein said ''onium compound is a water-insoluble quaternary ammonium salt and the reaction product of said photographic color coupler and said p-aminophenol is contacted with said quaternary ammonium salt.

Claim 10

A process of forming an ''onium indophenoxide dye image in an imagewise-exposed photographic element which comprises 1) a support, 2) at least one layer thereon containing a silver halide composition and 3) at least one layer in association with said silver halide composition containing a photographic color coupler, said process comprising contacting said photographic element with a silver halide developing composition comprising a silver halide color-developing agent which is predominantly a p-aminophenol containing a primary amino group, to provide an imagewise distribution of oxidized color-developing agent, and reacting said oxidized color-developing agent with said color coupler, with the provision that an ''onium compound is provided in association with the reaction product of said color coupler and said oxidized color developer.

Claim 11

A process according to claim 11 wherein said ''onium compound is present in at least one layer of said photographic element.

Claim 12

A process according to claim 11 wherein said photographic element comprises a layer comprising a blue-sensitive silver halide emulsion in association with a yellow-forming color coupler, a layer comprising a green-sensitive silver halide emulsion in association with a magenta-forming color coupler, and a red-sensitive emulsion in association with a cyanforming color coupler.

Claim 13

A process according to claim 13 wherein said silver halide emulsions are fogged, direct-positive, silver halide emulsions.

Claim 14

A process according to claim 13 wherein said silver halide emulsions are unfogged, silver halide emulsions.

Claim 15

A process according to claim 13 wherein said color couplers are nondiffusing color couplers.

Claim 16

A process according to claim 11 wherein said ''onium compound is a quaternary ammonium salt.

Claim 17

A process according to claim 11 wherein said ''onium compound is cetyltrimethylammonium bromide.

Claim 18

A process according to claim 11 wherein said color-developing agent consists essentially of said p-aminophenol.

Claim 19

A process according to claim 11 wherein said ''onium compound is provided in sufficient concentration to combine with substantially all of the reaction product formed between the p-aminophenol and said color coupler.

Claim 20

A photographic element, a support and at least one layer thereon comprising an ''onium indophenoxide.

Claim 21

A photographic element according to claim 21 wherein said ''onium indophenoxide has the formula: (COUP) N-Ar-O - +M wherein (COUP) is a color coupler, Ar is an arylene group comprising from six to 20 carbon atoms and M is an ''onium group.

Claim 22

A photographic element comprising at least one layer containing a silver halide emulsion, at least one layer in association with said silver halide emulsion containing a color-forming coupler and at least one layer containing a color-developing agent which is predominantly a p-aminophenol containing a primary amino group and which is present in sufficient concentration to produce a visible image dye by reaction with said silver halide emulsion.

Claim 23

A photographic element according to claim 23 comprising at least one layer in association with said color-forming coupler which contains an ''onium compound.

Claim 24

A photographic element according to claim 24 wherein said ''onium compound is a quaternary ammonium salt.

Claim 25

A process of providing a bathochromic, spectrophotometric absorption shift in an imagewise distribution of an indophenol dye located in a photographic element, comprising the step of contacting said indophenol dye with an ''onium salt to form an ''onium indophenoxide.

Claim 26

A process according to claim 26 wherein said ''onium compound is a quaternary ammonium salt, a tertiary sulfonium salt or a quaternary phosphonium salt.

Claim 27

A process of forming an ''onium indophenoxide comprising reacting a photographic color coupler with an oxidized p-aminophenol containing a primary amino group wherein an ''onium compound is provided in association with the reaction product of said color coupler and said p-aminophenol.

Claim 28

A process according to claim 28 wherein said photographic color coupler is a phenolic compound, a pyrazolone compound or a compound having an open-chain active methylene group and said p-aminophenol has the formula: H2-N-Ar-OH wherein Ar is an arylene group.

Claim 29

A process according to claim 28 wherein said ''onium compound is a quaternary ammonium salt.