Photographic color developer compositions

Claim 2

A photographic color developing composition comprising (1) a primary aromatic amino color developing agent, (2) an hydroxylamine and (3) a member selected from the group consisting of (a) alkanolamines which are free of carboxyl substitution, and are represented by the formula ##STR6## wherein R 1 is an hydroxyalkyl group of 2 to 6 carbon atoms and each of R 2 and R 3 is a hydrogen atom, an alkyl group of 1 to 6 carbon atoms, an hydroxyalkyl group of 2 to 6 carbon atoms, a benzyl radical, or a ##STR7## wherein n is an integer of from 1 to 6 and each of X and Y is a hydrogen atom, an alkyl group of 1 to 6 carbon atoms or an hydroxyalkyl group of 2 to 6 carbon atoms, (b) aliphatic monoamino monocarboxylic acids of up to 3 carbon atoms, and (c) aminobenzoic acids; the concentration of (2) and (3) being sufficient to retard aerial oxidation of said primary aromatic amino color developing agent.

Claim 3

A photographic color developing composition comprising a primary aromatic amino color developing agent and a concentration sufficient to retard aerial oxidation of said developing agent of a combination of an hydroxylamine with an alkanolamine which is free of carboxyl substitution and is represented by the formula ##STR8## wherein R 1 is an hydroxyalkyl group of 2 to 6 carbon atoms and each of R 2 and R 3 is a hydrogen atom, an alkyl group of 1 to 6 carbon atoms, an hydroxyalkyl group of 2 to 6 carbon atoms, a benzyl radical, or a ##STR9## wherein n is an integer of from 1 to 6 and each of X and Y is a hydrogen atom, an alkyl group of 1 to 6 carbon atoms or an hydroxyalkyl group of 2 to 6 carbon atoms.

Claim 4

A photographic color developing composition comprising a primary aromatic amino color developing agent and a concentration sufficient to retard aerial oxidation of said developing agent of a combination of an hydroxylamine with an alkanolamine which is free of carboxyl substitution and is represented by the formula ##STR8## wherein R 1 is an hydroxyalkyl group of 2 to 6 carbon atoms and each of R 2 and R 3 is a hydrogen atom, an alkyl group of 1 to 6 carbon atoms, an hydroxyalkyl group of 2 to 6 carbon atoms, a benzyl radical, or a ##STR9## wherein n is an integer of from 1 to 6 and each of X and Y is a hydrogen atom, an alkyl group of 1 to 6 carbon atoms or an hydroxyalkyl group of 2 to 6 carbon atoms.

Claim 5

A photographic color developing composition as claimed in claim 2 wherein said alkanolamine is a secondary monoamine, a tertiary monoamine, a secondary diamine or a tertiary diamine.

Claim 6

A photographic color developing composition comprising a primary aromatic amino color developing agent and a concentration sufficient to retard aerial oxidation of said developing agent of a combination of an hydroxylamine with an aliphatic monoamino monocarboxylic acid of up to 3 carbon atoms.

Claim 7

A photographic color developing composition comprising a primary aromatic amino color developing agent and a concentration sufficient to retard aerial oxidation of said developing agent of a combination of an hydroxylamine with an aliphatic monoamino monocarboxylic acid of up to 3 carbon atoms.

Claim 8

A photographic color developing composition comprising a primary aromatic amino color developing agent and a concentration sufficient to retard aerial oxidation of said developing agent of a combination of an hydroxylamine with an aminobenzoic acid.

Claim 9

A photographic color developing composition comprising a primary aromatic amino color developing agent and a concentration sufficient to retard aerial oxidation of said developing agent of a combination of an hydroxylamine with an aminobenzoic acid.

Claim 10

A photographic color developing composition comprising (1) a primary aromatic amino color developing agent, (2) an hydroxylamine of the formula ##STR10## wherein R is a hydrogen atom or an alkyl group of 1 to 3 carbon atoms, or a water-soluble acid salt thereof, and (3) a member selected from the group consisting of (a) alkanolamines which are free of carboxyl substitution and are represented by the formula ##STR11## wherein R 1 is an hydroxyalkyl group of 2 to 6 carbon atoms and each of R 2 and R 3 is a hydrogen atom, an alkyl group of 1 to 6 carbon atoms, an hydroxyalkyl group of 2 to 6 carbon atoms, a benzyl radical, or a ##STR12## wherein n is an integer of from 1 to 6 and each of X and Y is a hydrogen atom, an alkyl group of 1 to 6 carbon atoms or an hydroxyalkyl group of 2 to 6 carbon atoms, (b) aliphatic monoamino monocarboxylic acids of up to 3 carbon atoms, and (c) aminobenzoic acids; the concentration of (2) and (3) being sufficient to retard aerial oxidation of said primary aromatic amino color developing agent.

Claim 11

A photographic color developing composition comprising (1) a primary aromatic amino color developing agent, (2) an hydroxylamine of the formula ##STR10## wherein R is a hydrogen atom or an alkyl group of 1 to 3 carbon atoms, or a water-soluble acid salt thereof, and (3) a member selected from the group consisting of (a) alkanolamines which are free of carboxyl substitution and are represented by the formula ##STR11## wherein R 1 is an hydroxyalkyl group of 2 to 6 carbon atoms and each of R 2 and R 3 is a hydrogen atom, an alkyl group of 1 to 6 carbon atoms, an hydroxyalkyl group of 2 to 6 carbon atoms, a benzyl radical, or a ##STR12## wherein n is an integer of from 1 to 6 and each of X and Y is a hydrogen atom, an alkyl group of 1 to 6 carbon atoms or an hydroxyalkyl group of 2 to 6 carbon atoms, (b) aliphatic monoamino monocarboxylic acids of up to 3 carbon atoms, and (c) aminobenzoic acids; the concentration of (2) and (3) being sufficient to retard aerial oxidation of said primary aromatic amino color developing agent.

Claim 12

A photographic color developing composition comprising (1) a primary aromatic amino color developing agent, (2) from about 1 to about 8 moles per mole of said developing agent of an hydroxylamine of the formula ##STR13## wherein R is a hydrogen atom or an alkyl group of 1 to 3 carbon atoms, or a water-soluble acid salt thereof, and (3) from about 4 to about 30 moles per mole of said developing agent of an alkanolamine which is free of carboxyl substitution and is represented by the formula ##STR14## wherein R 4 is an hydroxyalkyl group of 2 to 4 carbon atoms and each of R 5 and R 6 is an alkyl group of 1 to 4 carbon atoms or an hydroxyalkyl group of 2 to 4 carbon atoms.

Claim 13

A photographic color developing composition comprising (1) a primary aromatic amino color developing agent, (2) from about 1 to about 8 moles per mole of said developing agent of an hydroxylamine of the formula ##STR13## wherein R is a hydrogen atom or an alkyl group of 1 to 3 carbon atoms, or a water-soluble acid salt thereof, and (3) from about 4 to about 30 moles per mole of said developing agent of an alkanolamine which is free of carboxyl substitution and is represented by the formula ##STR14## wherein R 4 is an hydroxyalkyl group of 2 to 4 carbon atoms and each of R 5 and R 6 is an alkyl group of 1 to 4 carbon atoms or an hydroxyalkyl group of 2 to 4 carbon atoms.

Claim 14

A photographic color developing composition comprising (1) a primary aromatic amino color developing agent, (2) from about 1 to about 8 moles per mole of said developing agent of an hydroxylamine of the formula ##STR15## wherein R is a hydrogen atom or an alkyl group of 1 to 3 carbon atoms, or a water-soluble acid salt thereof, (3) from about 4 to about 30 moles per mole of said developing agent of a member selected from the group consisting of (a) alkanolamines which are free of carboxyl substitution and are represented by the formula ##STR16## wherein R 1 is an hydroxyalkyl group of 2 to 6 carbon atoms and each of R 2 and R 3 is a hydrogen atom, an alkyl group of 1 to 6 carbon atoms, an hydroxyalkyl group of 2 to 6 carbon atoms, a benzyl radical, or a ##STR17## wherein n is an integer of from 1 to 6 and each of X and Y is a hydrogen atom, an alkyl group of 1 to 6 carbon atoms, or an hydroxyalkyl group of 2 to 6 carbon atoms, (b) aliphatic monoamino monocarboxylic acids of up to 3 carbon atoms, and (c) aminobenzoic acids, and (4) from zero to 0.2 moles of sulfite per mole of said developing agent.

Claim 15

A photographic color developing composition comprising (1) a primary aromatic amino color developing agent, (2) from about 1 to about 8 moles per mole of said developing agent of an hydroxylamine of the formula ##STR15## wherein R is a hydrogen atom or an alkyl group of 1 to 3 carbon atoms, or a water-soluble acid salt thereof, (3) from about 4 to about 30 moles per mole of said developing agent of a member selected from the group consisting of (a) alkanolamines which are free of carboxyl substitution and are represented by the formula ##STR16## wherein R 1 is an hydroxyalkyl group of 2 to 6 carbon atoms and each of R 2 and R 3 is a hydrogen atom, an alkyl group of 1 to 6 carbon atoms, an hydroxyalkyl group of 2 to 6 carbon atoms, a benzyl radical, or a ##STR17## wherein n is an integer of from 1 to 6 and each of X and Y is a hydrogen atom, an alkyl group of 1 to 6 carbon atoms, or an hydroxyalkyl group of 2 to 6 carbon atoms, (b) aliphatic monoamino monocarboxylic acids of up to 3 carbon atoms, and (c) aminobenzoic acids, and (4) from zero to 0.2 moles of sulfite per mole of said developing agent.

Claim 16

A photographic color developing composition as claimed in claim 1 wherein said developing agent is a p-phenylenediamine.

Claim 17

A photographic color developing composition as claimed in claim 1 wherein said developing agent is an aminophenol.

Claim 18

A photographic color developing composition as claimed in claim 1 wherein said developing agent is 4-amino-N-ethyl-N-(β-methanesulfonamidoethyl)-m-toluidine sesquisulfate monohydrate.

Claim 19

A photographic color developing composition as claimed in claim 1 wherein said composition additionally contains benzyl alcohol.

Claim 20

A photographic color developing composition as claimed in claim 1 which is free of sulfite ions.

Claim 21

A photographic color developing composition as claimed in claim 1 wherein (2) is hydroxylamine sulfate and (3) is triethanolamine.

Claim 22

A photographic color developing composition as claimed in claim 1 wherein (2) is hydroxylamine sulfate and (3) is diethanolamine.

Claim 23

A photographic color developing composition as claimed in claim 1 wherein (2) is hydroxylamine sulfate and (3) is glycine.

Claim 24

A photographic color developing composition as claimed in claim 1 wherein (2) is hydroxylamine sulfate and (3) is 2-dimethylaminoethanol.

Claim 25

A photographic color developing composition as claimed in claim 1 wherein (2) is hydroxylamine sulfate and (3) is ortho-aminobenzoic acid.

Claim 26

A photographic color developing composition containing 4-amino-N-ethyl-N-(β-methanesulfonamidoethyl)-m-toluidine sesquisulfate monohydrate, benzyl alcohol, hydroxylamine sulfate and triethanolamine; said composition being free of sulfite ions and containing a sufficient concentration of said hydroxylamine sulfate and said triethanolamine to retard aerial oxidation of said 4-amino-N-ethyl-N-(β-methanesulfonamidoethyl)-m-toluidine sesquisulfate monohydrate.

Claim 27

A photographic color developing composition containing 4-amino-N-ethyl-N-(β-methanesulfonamidoethyl)-m-toluidine sesquisulfate monohydrate, benzyl alcohol, hydroxylamine sulfate and triethanolamine; said composition being free of sulfite ions and containing a sufficient concentration of said hydroxylamine sulfate and said triethanolamine to retard aerial oxidation of said 4-amino-N-ethyl-N-(β-methanesulfonamidoethyl)-m-toluidine sesquisulfate monohydrate.

Claim 30

A method as claimed in claim 20 wherein said hydroxylamine is a compound of the formula ##STR20## wherein R is a hydrogen atom or an alkyl group of 1 to 3 carbon atoms, or a water-soluble acid salt thereof.

Claim 31

A method as claimed in claim 20 wherein said alkanolamine has the formula: ##STR21## wherein R 4 is an hydroxyalkyl group of 2 to 4 carbon atoms and each of R 5 and R 6 is an alkyl group of 1 to 4 carbon atoms or an hydroxyalkyl group of 2 to 4 carbon atoms.

Claim 32

A method as claimed in claim 20 wherein said hydroxylamine is hydroxylamine sulfate.

Claim 33

A method as claimed in claim 20 wherein said alkanolamine is triethanolamine.

Claim 34

A method as claimed in claim 20 wherein said alkanolamine is diethanolamine.

Claim 35

A method as claimed in claim 20 wherein said alkanolamine is 2-dimethylaminoethanol.

Claim 36

A method as claimed in claim 20 wherein said aliphatic monoamino monocarboxylic acid is glycine.

Claim 37

A method as claimed in claim 20 wherein said aminobenzoic acid is ortho-aminobenzoic acid.

Claim 38

A method as claimed in claim 20 wherein said developing agent is 4-amino-N-ethyl-N-(β-methane-sulfonamidoethyl)-m-toluidine sesquisulfate monohydrate.

Claim 39

A process of color developing a photographic element which comprises contacting said element with a color developing composition containing a primary aromatic amino color developing agent stabilized against aerial oxidation with a combination of (1) an hydroxylamine and (2) a member selected from the group consisting of (a) alkanolamines which are free of carboxyl substitution, and are represented by the formula ##STR22## wherein R 1 is an hydroxyalkyl group of 2 to 6 carbon atoms and each of R 2 and R 3 is a hydrogen atom, an alkyl group of 1 to 6 carbon atoms, an hydroxyalkyl group of 2 to 6 carbon atoms, a benzyl radical, or a ##STR23## wherein n is an integer of from 1 to 6 and each of X and Y is a hydrogen atom, an alkyl group of 1 to 6 carbon atoms, or an hydroxyalkyl group of 2 to 6 carbon atoms, (b) aliphatic monoamino monocarboxylic acids of up to 3 carbon atoms, and (c) aminobenzoic acids.

Claim 40

A process of color developing a photographic element which comprises contacting said element with a color developing composition containing a primary aromatic amino color developing agent stabilized against aerial oxidation with a combination of (1) an hydroxylamine and (2) a member selected from the group consisting of (a) alkanolamines which are free of carboxyl substitution, and are represented by the formula ##STR22## wherein R 1 is an hydroxyalkyl group of 2 to 6 carbon atoms and each of R 2 and R 3 is a hydrogen atom, an alkyl group of 1 to 6 carbon atoms, an hydroxyalkyl group of 2 to 6 carbon atoms, a benzyl radical, or a ##STR23## wherein n is an integer of from 1 to 6 and each of X and Y is a hydrogen atom, an alkyl group of 1 to 6 carbon atoms, or an hydroxyalkyl group of 2 to 6 carbon atoms, (b) aliphatic monoamino monocarboxylic acids of up to 3 carbon atoms, and (c) aminobenzoic acids.

Claim 41

A process as claimed in claim 30 wherein said hydroxylamine is a compound of the formula ##STR24## wherein R is a hydrogen atom or an alkyl group of 1 to 3 carbon atoms, or a water-soluble acid salt thereof.

Claim 42

A process as claimed in claim 30 wherein said alkanolamine has the formula: ##STR25## wherein R 4 is an hydroxyalkyl group of 2 to 4 carbon atoms and each of R 5 and R 6 is an alkyl group of 1 to 4 carbon atoms, or an hydroxyalkyl group of 2 to 4 carbon atoms.

Claim 43

A process as claimed in claim 30 wherein said hydroxylamine is hydroxylamine sulfate.

Claim 44

A process as claimed in claim 30 wherein said alkanolamine is triethanolamine.

Claim 45

A process as claimed in claim 30 wherein said alkanolamine is diethanolamine.

Claim 46

A process as claimed in claim 30 wherein said alkanolamine is 2-dimethylaminoethanol.

Claim 47

A process as claimed in claim 30 wherein said aliphatic monoamino monocarboxylic acid is glycine.

Claim 48

A process as claimed in claim 30 wherein said aminobenzoic acid is ortho-aminobenzoic acid.

Claim 49

A process as claimed in claim 30 wherein said developing agent is 4-amino-N-ethyl-N-(β-methane-sulfonamidoethyl)-m-toluidine sesquisulfate monohydrate.