Compounds which can be used for hair dyeing, process for their preparation, dyeing compositions in which they are present and corresponding hair-dyeing process

Claim 2

An aqueous hair dye composition comprising a hair dyeing amount of a hair dye compound selected from the group consisting of (1) a compound of the formula ##STR28## wherein Z is selected from the group consisting of NO 2 and NH 2 , A is selected from the group consisting of NY and ##STR29## wherein Y represents two identical or different lower alkyl or lower hydroxyalkyl groups wherein each alkyl has 1-4 carbon atoms, or said two Y groups together with the nitrogen atom to which they are attached form a morpholino or piperidino ring, or when A is NY, each Y group can represent hydrogen or one Y group can represent hydrogen and the other Y group can represent alkyl or hydroxyalkyl, wherein the alkyl or each has 1-4 carbon atoms, Y 1 represents lower alkyl having 1-4 carbon atoms and X represents halogen, and R 1 and R 2 each independently represent hydrogen, lower alkyl having 1-4 carbon atoms or hydroxyalkyl having 1-4 carbon atoms, with the proviso that when Z represents NH 2 in a meta position relative to --NR 1 R 2 and A represents NY and Z is in the 4 position on the benzene nucleus and --NR 1 R 2 is in the 2-position on the benzene nucleus, and R 1 and R 2 both represent hydrogen then (a) one of the two Y groups in NY is not ethyl if the other Y group is hydrogen and (b) the two Y groups in NY do not form together with the nitrogen atom to which they are attached a morpholino or piperidino ring, and (2) an acid salt of the compound in (1), said hair dye compound being present in an amount ranging from 0.001 to 4 percent by weight based on the total weight of said composition.

Claim 3

The hair dye composition of claim 1 wherein Z in said hair dye compound is NH 2 in the meta position relative to the --NR 1 R 2 group and wherein said composition also contains an oxidation base selected from the group consisting of (a) a paraphenylenediamine selected from the group consisting of (i) a paraphenylenediamine having the formula ##STR30## wherein R' 1 , R' 2 and R 3 each independently are selected from the group consisting of hydrogen, alkyl having 1-4 carbon atoms, alkoxy having 1-2 carbon atoms and halogen, R 4 and R 5 each independently are selected from the group consisting of hydrogen, alkyl containing 1-4 carbon atoms, hydroxyalkyl containing 1-4 carbon atoms, alkoxyalkyl wherein the alkoxy moiety contains 1-2 carbon atoms and the alkyl moiety contains 1-4 carbon atoms, carbamylalkyl wherein the alkyl moiety contains 1-4 carbon atoms, alkylsulphonamidoalkyl wherein the alkyl moieties contain 1-4 carbon atoms, acetylaminoalkyl wherein the alkyl moiety contains 1-4 carbon atoms, ureidoalkyl wherein the alkyl moiety contains 1-4 carbon atoms, carbethoxyamino alkyl wherein the alkyl moiety contains 1-4 carbon atoms, aminoalkyl wherein the alkyl moiety contains 1-4 carbon atoms, monoalkylaminoalkyl wherein the alkyl moieties contain 1-4 carbon atoms, piperidinoalkyl wherein the alkyl moiety contains 1-4 carbon atoms, morpholinoalkyl wherein the alkyl moiety contains 1-4 carbon atoms and dialkylaminoalkyl wherein the alkyl moieties contain 1-4 carbon atoms, or R 4 and R 5 together with the nitrogen atom to which they are attached form a piperdino or morpholino group, with the proviso that R' 1 and R 3 represent hydrogen when R 4 and R 5 do not represent hydrogen, and (ii) the acid salt of (i), (b) a para-aminophenol selected from the group consisting of (i') a para-aminophenol having the formula ##STR31## wherein R 6 represents a member selected from the group consisting of hydrogen, alkyl having 1-4 carbon atoms and halogen, and (ii') the acid salt of (i') and (c) a heterocyclic base selected from the group consisting of 2,5-diaminopyridine, 3-methyl-7-aminobenzomorpholine and 5-aminoindole, said hair dye compound being present in an amount ranging from 0.001 to 2.5 percent by weight based on the total weight of said composition.

Claim 4

The hair dye composition of claim 2 which also contains a coupler selected from the group consisting of resorcinol, pyrocatechol, 2-methyl resorcinol, 2-ethyl resorcinol, meta-aminophenol, 2-methyl-5-aminophenol, 2-methyl-5-N-(β-hydroxyethyl)aminophenol, 6-hydroxybenzomorpholine, 2-6-dimethyl-3-acetylaminophenol, 2-methyl-5-carbethoxyaminophenol, 2-methoxy-5-carbethoxyaminophenol, 2-methyl-5-ureidophenol, 2,4-diaminophenoxyethanol, 2,4-diaminoanisole, 2,6-dimethyl-meta-phenylenediamine, 2-amino-4-N-methylaminophenoxyethanol, 2,4-diaminophenyl-β-methoxyethyl ether, 2,4-diaminophenyl-β-mesylaminoethyl ether, 2-N-carbamylmethylamino-4-amino anisole, 3-amino-4-methoxyphenol, α-naphthol, 2,6-diaminopyridine, 3-5-diamino-2,6-dimethoxypyridine, 1-phenyl-3-methylpyrazol-5-one and 2-amino-4-N-(β-hydroxyethyl)aminophenyl-β-hydroxypropyl ether.

Claim 5

The hair dye composition of claim 1 which also includes a compound selected from the group consisting of ortho-diphenol, ortho-phenylene diamines and ortho-aminophenols.

Claim 6

The hair dye composition of claim 1 which also includes a member selected from the group consisting of 2,6-diaminohydroquinone dihydrochloride, 2,6-diamino-4-N,N-bis-(ethyl)-aminophenol trihydrochloride, 2,4-diaminophenyl dihydrochloride, 1,2,4-trihydroxybenzene, 2,3,5, trihydroxytoluene and 4-methoxy-2-amino-N-(β-hydroxyethyl)-aniline.

Claim 7

The hair dye composition of claim 1 which also includes a quinone dyestuff selected from the group consisting of 2-hydroxy-1,4-naphthoquinone, 5-hydroxy-1,4-naphthoquinone and 2-[4'-(N,N-dihydroxyethylamino)-anilino]-5-N'-(β-hydroxyethyl)amino-1,4-benzoquinone.

Claim 8

The hair dye composition of claim 1 which also includes an azo dye, an anthraquinone dye, a nitrobenzene dye, an indoaniline, an indophenol, an indamine or a leuco derivative of said indoaniline, indophenol and indamine.

Claim 9

The hair dye composition of claim 1 having a pH of 5 to 11.5.

Claim 10

The hair dye composition of claim 1 in the form of a liquid, cream, gel or aerosol.

Claim 11

A process for dyeing hair comprising applying to said hair the composition of claim 1 in an amount effective to dye said hair, leaving said composition in contact with said hair for a period of time from 10 to 45 minutes, rinsing said hair and drying said hair.

Claim 12

The process of claim 10 wherein said composition also contains an oxidation base and as an oxidizing agent, hydrogen peroxide, urea peroxide or ammonium persulfate, said oxidizing agent being added to said composition at the time of use.