Composition for the oxidation dyeing of keratinous fibres comprising a para-phenylenediamine, a meta-phenylenediamine and a para-aminophenol or a meta-aminophenol, and dyeing process

Claim 2

A composition for the oxidation dyeing of keratinous fibres, comprising a medium suitable for dyeing, said medium containing (a) at least one first para-phenylenediamine oxidation dye precursor selected from a compound of formula (I): ##STR6## in which R 1 , R 2 , R 3 and R 4 have the following meanings: R 1 and R 2 represent a hydrogen atom when R 3 and R 4 , which are identical, represent a --(CH 2 ) n --OH group in which n is equal to 2, 3 or 4; R 1 , R 2 , and R 3 represent a hydrogen atom when R 4 represents either a --(CH 2 ) n --OR 5 group, in which R 5 represents a methyl or ethyl radical, with n being equal to 2 or 3, or a mono- or dihydroxypropyl group; or R 3 and R 4 represent a hydrogen atom when R 1 and R 2 , which are identical, represent a methyl or ethyl radical and are situated in positions 2,3, 2,5, or 2,6 on the benzene ring; and an acid addition salt of said compound of formula (I); and (b) at least one first meta-phenylenediamine coupling agent selected from a compound of formula (II): ##STR7## in which: R 6 represents a hydrogen atom, an alkyl radical or a mono- or polyhydroxyalkyl radical; R 7 represents a hydrogen atom, an alkyl radical or a monohydroxyalkoxy radical; R 8 represents a hydrogen atom or an alkyl radical; and R 9 represents an alkoxy radical, an aminoalkoxy radical, a mono- or polyhydroxyalkoxy radical or a 2,4-diaminophenoxyalkoxy radical; said alkyl or alkoxy radicals containing from 1 to 4 carbon atoms; said mono- or polyhydroxyalkyl radicals and mono- or polyhydroxyalkoxy radicals independently representing alkyl or alkoxy radicals containing from 2 to 3 carbon atoms and containing from 1 to 3 hydroxyl groups; with the proviso that at least one of the radicals R 7 or R 8 represents a hydrogen atom; and an acid addition salt of said compound of formula (II); and (c) at least one second para-aminophenol oxidation dye precursor selected from a compound of formula (III): ##STR8## in which: R 10 represents an alkyl, monohydroxyalkyl or monoalkoxyalkyl radical; said alkyl and alkoxy radicals containing from 1 to 4 carbon atoms; and an acid addition salt of said formula (III); wherein said compounds or salts of formulae (I), (II), and (III) are present in amounts effective to react with an oxidation agent to dye said keratinous fibres.

Claim 3

A composition according to claim 1, wherein said first para-phenylenediamine oxidation dye precursor of formula (I) is present in a weight proportion ranging from 0.01% to 10%; said first meta-phenylenediamine coupling agent of formula (II) is present in a weight proportion ranging from 0.001% to 3%; and said second para-aminophenol oxidation dye precursor of formula (III) is present in a weight proportion ranging from 0.01% to 5%, said weight proportions being relative to the total weight of said composition.

Claim 4

A composition according to claim 1, wherein said keratinous fibers are human keratinous fibers.

Claim 5

A composition according to claim 1, which is a ready-to-use composition, and which further comprises an oxidizing agent and has a pH ranging from 3 to 11.

Claim 6

A composition for the oxidation dyeing of keratinous fibres, comprising a medium suitable for dyeing, said medium containing (a) at least one first para-phenylenediamine oxidation dye precursor selected from a compound of formula (I): ##STR9## in which: R 1 , R 2 , R 3 and R 4 have the following meanings: R 1 , and R 2 represent a hydrogen atom when R 3 and R 4 , which are identical, represent a --(CH 2 ) n --OH group in which n is equal to 2, 3 or 4; R 1 , R 2 , and R 3 represent a hydrogen atom when R 4 represents either a --(CH 2 ) n --OR 5 group, in which R 5 represents a methyl or ethyl radical, with n being equal to 2 or 3, or a mono- or dihydroxypropyl group; or R 3 and R 4 represent a hydrogen atom when R 1 and R 2 , which are identical, represent a methyl or ethyl radical and are situated in positions 2,3, 2,5, or 2,6 on the benzene ring; or R 2 , R 3 , and R 4 represent a hydrogen atom when R 1 represents an isopropyl radical; and an acid addition salt of said compound of formula (I); and (b) at least one first meta-phenylenediamine coupling agent selected from a compound of formula (II): ##STR10## in which: R 6 represents a hydrogen atom, an alkyl radical or a mono- or polyhydroxyalkyl radical; R 7 represents a hydrogen atom, an alkyl radical or a monohydroxyalkoxy radical; R 8 represents a hydrogen atom or an alkyl radical; R 9 represents an alkoxy radical, an aminoalkoxy radical, a mono- or polyhydroxyalkoxy radical or a 2,4-diaminophenoxyalkoxy radical; said alkyl or alkoxy radicals containing from 1 to 4 carbon atoms; said mono- or polyhydroxyalkyl radicals and mono- or polydroxyalkoxy radicals independently representing alkyl or alkoxy radicals containing from 2 to 3 carbon atoms and containing from 1 to 3 hydroxyl groups: with the proviso that at least one of the radicals R 7 or R 8 represents a hydrogen atom; and an acid addition salt of said compound of formula (II); and (c) at least one second meta-aminophenol coupling agent selected from a compound of formula (IV): ##STR11## in which: R 11 represents an alkyl radical containing from 1 to 2 carbon atoms; and an acid addition salt of said compound of formula (IV); wherein said compounds or salts of formulae (I), (II), and (IV) are present in amounts effective to react with an oxidation agent to dye said keratinous fibres.

Claim 7

A composition for the oxidation dyeing of keratinous fibres, comprising a medium suitable for dyeing, said medium containing (a) at least one first para-phenylenediamine oxidation dye precursor selected from a compound of formula (I): ##STR9## in which: R 1 , R 2 , R 3 and R 4 have the following meanings: R 1 , and R 2 represent a hydrogen atom when R 3 and R 4 , which are identical, represent a --(CH 2 ) n --OH group in which n is equal to 2, 3 or 4; R 1 , R 2 , and R 3 represent a hydrogen atom when R 4 represents either a --(CH 2 ) n --OR 5 group, in which R 5 represents a methyl or ethyl radical, with n being equal to 2 or 3, or a mono- or dihydroxypropyl group; or R 3 and R 4 represent a hydrogen atom when R 1 and R 2 , which are identical, represent a methyl or ethyl radical and are situated in positions 2,3, 2,5, or 2,6 on the benzene ring; or R 2 , R 3 , and R 4 represent a hydrogen atom when R 1 represents an isopropyl radical; and an acid addition salt of said compound of formula (I); and (b) at least one first meta-phenylenediamine coupling agent selected from a compound of formula (II): ##STR10## in which: R 6 represents a hydrogen atom, an alkyl radical or a mono- or polyhydroxyalkyl radical; R 7 represents a hydrogen atom, an alkyl radical or a monohydroxyalkoxy radical; R 8 represents a hydrogen atom or an alkyl radical; R 9 represents an alkoxy radical, an aminoalkoxy radical, a mono- or polyhydroxyalkoxy radical or a 2,4-diaminophenoxyalkoxy radical; said alkyl or alkoxy radicals containing from 1 to 4 carbon atoms; said mono- or polyhydroxyalkyl radicals and mono- or polydroxyalkoxy radicals independently representing alkyl or alkoxy radicals containing from 2 to 3 carbon atoms and containing from 1 to 3 hydroxyl groups: with the proviso that at least one of the radicals R 7 or R 8 represents a hydrogen atom; and an acid addition salt of said compound of formula (II); and (c) at least one second meta-aminophenol coupling agent selected from a compound of formula (IV): ##STR11## in which: R 11 represents an alkyl radical containing from 1 to 2 carbon atoms; and an acid addition salt of said compound of formula (IV); wherein said compounds or salts of formulae (I), (II), and (IV) are present in amounts effective to react with an oxidation agent to dye said keratinous fibres.

Claim 8

A composition according to claim 5, wherein for said at least one first meta-phenylenediamine coupling agent selected from a compound of formula (II), R 6 represents an alkyl radical or a mono- or polyhydroxyalkyl radical.

Claim 9

A composition according to claim 5, wherein said first para-phenylenediamine oxidation dye precursor of formula (I) is present in a weight proportion ranging from 0.01% to 10%; said first meta-phenylenediamine coupling agent of formula (II) is present in a weight proportion ranging from 0.001 % to 3%; and said second meta-aminophenol oxidation dye precursor of formula (IV) is present in a weight proportion ranging from 0.005% to 5%, said weight proportions being relative to the total weight of said composition.

Claim 10

A composition according to claim 5, wherein said keratinous fibers are human keratinous fibers.

Claim 11

A composition according to claim 5, which is a ready-to-use composition, and which further comprises an oxidizing agent and has a pH ranging from 3 to 11.