WO2009056777A2 - Lightening and/or dyeing of human keratinous fibres using a composition containing a particular amino-silicated compound, and composition and device - Google Patents

Abstract

The invention relates to a method for lightening and/or dyeing human keratinous fibres, that uses, on the one hand, a composition containing one or more particular amino-silicated compounds and, on the other hand, an oxidising composition. The invention also relates to a composition containing less than 10 wt % of water and including one or more particular amino-silicated compounds and one or more fats. The invention further relates to a device including a plurality of compartments, one of which at least contains the above-mentioned composition while another one at least contains an oxidising composition.

Description

 LIGHTING AND / OR COLORING OF HUMAN KERATINIC FIBERS USING A COMPOSITION COMPRISING A COMPOUND

The subject of the present invention is a process for lightening and / or coloring human keratin fibers, using on the one hand a composition comprising a particular aminosilicon compound and, on the other hand, an oxidizing composition. DESCRIPTION OF THE PREFERRED EMBODIMENTS

It also relates to a particular composition comprising a particular aminosilicon compound and at least one fatty substance

Finally, it relates to a multi-compartment device, at least one of which comprises the abovementioned composition and at least one other comprising an oxidizing composition.

Among the methods for staining human keratinous fibers, such as the hair, mention may be made of oxidation or permanent staining. More particularly, this staining mode uses one or more oxidation dye precursors, more particularly one or more oxidation bases possibly associated with one or more couplers.

Usually, oxidation bases are chosen from ortho- or para-phenylenediamines, ortho- or para-aminophenols as well as heterocyclic compounds. These oxidation bases are colorless or weakly colored compounds which, combined with oxidizing products, make it possible to access colored species by a process of oxidative condensation.

Very often, the shades obtained with these oxidation bases are varied by combining them with one or more couplers, the latter being chosen in particular from aromatic meta-diamines, meta-aminophenols, meta-diphenols and certain heterocyclic compounds, such as indole compounds.

The variety of molecules involved in the oxidation bases and couplers allows a rich palette of colors to be obtained.

The dyeing process comprises contacting the oxidation dye precursor (s) with an oxidizing agent, which is preferably hydrogen peroxide, under alkaline conditions. One of the difficulties lies in the fact that the most commonly used alkaline agent is ammonia, whose role is to adjust the pH of the composition to an alkaline pH to allow degradation of the oxidizing agent. Thus, the oxygen formed causes the condensation of the oxidation dye precursors as well as a lightening of the fiber due to the degradation of the melanin present. The basifying agent also has another role, that of swelling the keratin fiber to promote the penetration of the oxidant and dyes inside the fiber.

However, this alkalizing agent is very volatile, which causes inconvenience to the user because of the strong characteristic smell, rather annoying ammonia that emerges during the process. In addition, the amount of ammonia released requires the use of higher levels than necessary to compensate for this loss. This is not without consequence for the user who remains not only bothered by the smell but may also be faced with greater risks of intolerance, such as irritation of the scalp (tingling).

As for the option of purely and simply replacing all or part of the ammonia with one or more other conventional alkalizing agents, this does not lead to compositions as effective as those based on ammonia, in particular because these alkalinizing agents do not provide sufficient lightening of the pigmented fibers in the presence of the oxidizing agent.

Another coloring mode used is that of direct or semi-permanent coloring. This method consists in applying to the keratin fibers direct dyes which are colored and coloring molecules, having an affinity for the fibers, to be left to allow the molecules to penetrate, by diffusion, inside the fiber, then to rinse them.

The direct dyes generally employed are chosen from nitrobenzene, anthraquinone, nitropyridine, azo, methine, azomethine, xanthene, acridine, azine or triarylmethane direct dyes.

This staining mode does not require the use of an oxidizing agent unless it is desired to simultaneously obtain the coloring, a lightening of the fiber. In this case, the procedure is the same as for the oxidation dyeing, that is to say by bringing the keratinous fibers into contact with the dyeing composition in the presence of an oxidizing agent, more particularly hydrogen peroxide, in the presence of alkaline usually in the presence of ammonia. We are therefore also faced with the same difficulties as those detailed previously for oxidation dyeing.

In addition to the dyeing processes, it is also common to implement lightening processes in which the keratin fibers are brought into contact with an oxidizing composition under alkaline conditions. These methods consist solely in degrading the melanin of the hair, to a greater or lesser extent depending on the oxidizing agent chosen. Thus a peroxygenated salt generally leads to a more pronounced lightening than by employing hydrogen peroxide alone in alkaline conditions. However, whatever the oxidizing agent chosen, the lightening processes require the use of hydrogen peroxide under alkaline conditions and in particular in the presence of ammonia to form or accelerate the formation of oxygen. Therefore, there are again encountered the same difficulties as those of the coloring processes implemented in the presence of an oxidizing agent and ammonia. One of the objectives of the present invention is therefore to provide compositions for the coloration and / or lightening of human keratinous fibers intended to be implemented in the presence of an oxidizing agent which do not have the disadvantages that the existing compositions , due to the presence of significant amounts of ammonia, while remaining at least as effective, both in terms of lightening than on that of coloring, with in particular good performance in terms of chromaticity, power and homogeneity. It should be noted that it was far from obvious to employ as alkalinizing agents, aminosilicon compounds corresponding to those of formula (I) in this type of process.

In fact, in the presence of sufficient quantities of water, most of these compounds hydrolyze and condense rapidly. One could thus have expected a drop in the effectiveness of the coloration and / or the lightening because the silicon-based polymers resulting from this reaction penetrate little into the fiber because of their size, decreasing by the same amount. the lightening or coloring power of the composition.

These and other objects are achieved by the present invention which therefore relates to a method for staining and / or lightening human keratin fibers, wherein said fibers are brought into contact with:

A first composition with a water content of less than 10% by weight comprising one or more aminosilicon compounds of formula (I)

H ₂ NR ₄ -SHR ₂

^Rs (D

Formula wherein: Ri is:

- an alkoxy radical linear or branched CrC ₂₀ preferably -C ₄ hydroxy

an OSi radical (R _a ) ₂ (Rb) R ₂ denotes: a linear or branched dC ₄ alkyl radical, preferably methyl or ethyl

- -a alkoxy radical -C ₂₀ linear or branched, preferably -C ₄ -a hydroxy

an OSi radical (R _a ) ₂ (R _b ) Where: R ₃ denotes a linear or branched C ₁ -C ₄ alkoxy radical, preferably ethoxy or methoxy, or a linear or branched C ₁ -C ₄ alkyl radical, preferably methyl or ethyl

R _b denotes a linear or branched C _r C ₄ alkyl radical, preferably methyl or ethyl R ₃ denotes:

a linear or branched C ₁ -C ₂₀ alkyl radical, preferably a C ₁ -C ₄ radical

a linear or branched C ₂ -C ₂₀ alkenyl radical, preferably a C ₂ -C ₄

a radical WSi (R _d ) ₂ (R _e ) with Where: - W denotes an oxygen atom or a linear alkylene radical containing from 1 to 10 carbon atoms R _d denotes a linear or branched dC ₄ alkyl radical, preferably methyl or ethyl, a linear or branched C ₁ -C ₄ alkoxy radical, preferably ethoxy or methoxy radical;

R _e denotes a linear alkyl radical -C ₄ or branched preferably methyl or ethyl, alkenyl C ₂ -C ₀ linear or branched, preferably C ₂ -C ₄

R ₄ is a divalent radical of structure:

R ₅ denotes an alkyl radical dC ₄ linear or branched, methyl or ethyl radical - R ₆ are identical or different, denote an alkyl radical linear _Ci-C4 or branched optionally substituted by one or more hydroxy groups, an NH ₂ radical, a Zi ₂ NH ₂ radical in which Zi ₂ denotes a linear C ₁ -C ₂₀ , preferably C ₁ -C 0, alkylene radical, still more particularly in dC ₄

- R ₈ denotes a linear alkyl radical -C ₄ or branched preferably methyl or ethyl, a C ₂ -C ₀ alkenyl radical linear or branched, preferably C ₂ -C _4, a Zi ₅ NH ₂ radical, a Zi ₇ If OSi (R _a ') ₂ (Rb') with

- R _a 'denotes a linear or branched C ₁ -C ₄ alkoxy radical, preferably methoxy or ethoxy

- R _b 'denotes a linear or branched dC ₄ alkyl radical, preferably methyl or ethyl

Zi ₅₁ Zi ₇ denote, independently of one another, a linear alkylene radical of d-C ₂₀ , preferably of CiCi ₀ , still more particularly of dC ₄

Z ₅ , Z ₈ , Z ₆ , Z ₇ and Zi ₀ denote, independently of each other, a linear alkylene radical in dC ₂₀ - Q denotes an unsaturated ring containing 6 chain members

Y identical or different represent an oxygen atom or a group NH g is 0 or 1

h is 0, 1, 2

- j is 0, 1, 2 - k is 0 or 1

k1 is 0 or 1, preferably 1 m is 0 or 1

r is 0, 1, 2 or 3 a represents the bond to the silicon atom; b represents the bond to the nitrogen atom of the amino group;

A second composition comprising one or more oxidizing agents. Another object of the invention is constituted by a dyeing process using the aforementioned composition, consisting of applying it to dry or moist keratin fibers.

Other characteristics and advantages of the invention will emerge more clearly on reading the description and examples which follow.

In what follows, and unless otherwise indicated, the boundaries of a domain of values are included in this field.

The human keratinous fibers treated by the process according to the invention are preferably the hair. In a variant, the composition has a water content of less than 2% by weight, and preferably less than 1% by weight relative to the weight of said composition. In the latter case, we speak of a substantially anhydrous composition. It should be noted that it is more particularly bound water, such as the water of crystallization of the salts or traces of water absorbed by the raw materials used in the production of the compositions according to the invention.

It is also stated that, in view of the use made of it, the composition according to the invention does not comprise any ingredient which renders it unusable for the coloration and / or lightening of human keratin fibers. Thus, the ingredients that it comprises are cosmetically acceptable. As indicated above, the composition according to the invention comprises at least one aminosilicon compound of formula (I) as defined above.

According to a more particular embodiment of the invention, the coefficients g, k, are equal to 0.

According to another preferred embodiment of the invention, the radicals R 1, R ₂ and R 3 which are identical or different denote:

a linear or branched C ₁ -C ₂₀ alkoxy radical, preferably a C ₁ -C ₄ radical;

an OSi (Ri ₀ ) ₃ radical in which R ₁ represents a linear or branched C ₁ -C ₄ alkyl radical, preferably methyl or ethyl;

- R ₃ can also represent an alkyl radical -C ₂₀ linear or branched, preferably C _4.

Preferably, the aminosilicon compound of formula (I) comprises at least one silicon atom bearing 1 or 2 alkoxy groups.

According to a first variant of the invention, the aminosilicon compound is of sub-structure (IA):

H ₂ N-R '^ Si-R' ₂ R ^s (IA)

Wherein R _'1, R' _2, identical or different, denote: an alkoxy radical -C ₂₀ linear or branched preferably -C ₄ a hydroxy radical

a radical OSi (R ' _a ) 2 (R' _b ) where

R'a denotes a linear or branched dC ₄ alkoxy radical, preferably methoxy or ethoxy

• R ' _b denotes a linear or branched dC ₄ alkyl radical, preferably methyl or ethyl

R _'3 represents: an alkyl radical -C _2O linear or branched, preferably CrC _4-1 alkenyl C ₂ -C ₂₀ linear or branched and preferably C ₂ -C ₄

a radical W'Si (R ' _d ) ₂ (R' _e ) where:

W denotes an oxygen atom or a linear alkylene radical containing from 1 to 10 carbon atoms; R ' _d denotes a linear or branched dC ₄ alkyl radical, preferably methyl or ethyl, a linear dC ₄ alkoxy radical; branched, preferably methoxy or ethoxy

• R ' _e denotes a linear or branched dC ₄ alkyl radical, preferably methyl or ethyl, a linear or branched C ₂ -d ₀ alkenyl radical, preferably C ₂ -C _4, FT ₄ is a divalent radical of structure:

R ₅ denotes a linear alkyl radical _C-4 or ramified, preferably methyl or ethyl

R ' _{6 which are} identical or different, denote a linear or branched dC ₄ alkyl radical, preferably methyl or ethyl radical, an NH ₂ radical, a radical Z ¹ _{I 2} NH _{2 in} which Z' ₁₂ denotes a linear C ₁ -C ₂₀ alkylene radical, preferably C1-C10, even more preferred Ci-C ₄

R 'denotes a linear alkyl group, _4-C or branched preferably methyl or ethyl, a C ₂ -C ₀ alkenyl radical linear or branched, preferably C ₂ -

C _4, a radical Z ¹ I ₅ NH _2, a radical Z _'17 If OSi _{(R') 2} (R'b)

Or :

R'a identical or not, denote a linear or branched dC ₄ alkoxy radical, preferably methoxy or ethoxy

R'b denotes a linear or branched dC ₄ alkyl radical, preferably methyl or ethyl

Z _'1 5, Z' ₁ 7 denote independently each other a linear alkylene radical C C _20, preferably ₀ CRCI, still more preferably -C ₄ ^• Z _'5 and Z' _8, Z'io denote, independently of one another a linear alkylene radical -C ₂₀

• Q 'denoting an unsaturated ring with 6 chain members

Y 'identical or different representing an oxygen atom or an NH group

• g 'is 0 or 1 - h' is equal to θ, 1, 2

• k 'is O or 1

• m 'is worth O or 1

• r 'is 0, 1, 2 or 3

• a 'represents the bond to the silicon atom

B 'represents the bond to the nitrogen atom of the amino group.

As examples of compounds of this variant suitable for the implementation of the invention, mention could be made of the following compounds:

These compounds of formula (IA) preferably comprise at least one silicon atom carrying two hydroxyl groups or two alkoxy groups or two groups OSi (alkoxy) ₂ (alkyl), the alkyl and alkoxy radicals being in dC ₄ .

Preferably R'i and R ' ₂ identical designate an alkoxy radical in dC ₄ .

According to a still more preferred variant of the invention, R ' ₁ and R' _{2 are} identical and denote a methoxy or ethoxy radical.

In addition, R ' ₃ more particularly denotes a linear or branched C ₁ -C ₄ alkyl radical.

Finally, a particularly advantageous variant of the invention is such that the coefficients g ', k', h 'are equal to O.

Preferably, the aminosilicon compounds comprise only one silicon atom.

According to a variant of the invention, the compounds of formula (IA) comprise only one silicon atom, the latter bearing two alkoxy groups in dC ₄ .

According to this variant, FT ₁ and R ' ₂ are identical and denote a dC ₄ alkoxy radical, and even more preferentially denote a methoxy or ethoxy radical.

Furthermore, in this variant, FT ₃ denotes a linear or branched alkyl radical d-C ₄ .

As for the coefficients g ', k', h ', they are worth O, according to this variant.

A particular embodiment of this variant is such that the coefficient r 'is zero, and preferably, the coefficient m' is also zero.

According to a second variant of the invention, the aminosilicon compound is of sub-structure (IB)

R "

/

H ₂ NR ";Si-R" ₂

^R " ³ (IB)

In which

R "i denotes a linear or branched C ₁ -C 4 alkoxy radical, preferably dC ₄

R " ₂ and R" ₃ identical designating a linear or branched C ₁ -C ₂₀ alkyl radical, preferably dC ₄ an OSi radical (R " _d ) ₃ with R" _d denoting a linear or branched dC ₄ alkyl radical; preferably methyl or ethyl,

R " ₄ is a divalent radical of structure:

Or :

• R " ₆ denotes a linear or branched dC ₄ alkyl radical optionally substituted by one or more hydroxyl groups - Z" ₅ , Z " ₆ , Z" ₇ denoting, independently of one another, a linear alkylene radical;

• Q "denoting an unsaturated ring with 6 members

• h "designating 0 or 1

• j "denoting 0, 1 or 2 - k" denoting 0 or 1

• a "represents the bond to the silicon atom

• b "represents the bond to the nitrogen atom of the amino group.

These compounds of structure (IB) preferably comprise at least one silicon atom carrying two alkyl or OSi (alkoxy) ₃ groups and an alkoxy group, the alkoxy radicals being Ci-C ₄ .

By way of examples of compounds of this second variant which are suitable for carrying out the invention, the following compounds could be mentioned:

1-Propanamine, 2- [1-ethoxy-3,3,3-trimethyl-1-propranamine, 3- [1-ethoxy-3,3,3-l - [(trimethylsilyl) oxy] disiloxanyl] trimethyl-1 - [(trimethylsilyl) oxy] disiloxanyl] -

Preferably, R " ₃ and FT ₁ denote a linear or branched alkyl radical in dC ₄

According to a particular variant of the invention, the coefficient k "is equal to 0.

Preferably, the aminosilicon compounds comprise only one silicon atom.

According to a variant of the invention, the compounds of formula (IB) comprise only one silicon atom and are such that R " ₃ and R" i denote a linear or branched C ₁ -C ₄ alkyl radical, k "being zero.

According to a preferred variant of the invention, j "is zero.

A third variant of the invention would consist in implementing a mixture of aminosilicon compounds corresponding to one and the other of the two aforementioned variants. Preferably, the composition comprises one or more compounds of formula (IA).

Usually, the content of compound of formula (I) represents from 0.1 to 50% and preferably from 1 to 30% by weight relative to the weight of the first composition.

The composition comprising the aminosilicon compound (s) of formula (I) may also comprise one or more oxidation dye precursors, more particularly one or more oxidation bases optionally combined with one or more couplers; one or more direct dyes, or mixtures thereof.

By way of example, the oxidation bases are chosen from para-phenylenediamines, bis-phenylalkylenediamines, para-aminophenols, ortho-aminophenols, heterocyclic bases and their addition salts. Among the paraphenylenediamines, there may be mentioned, for example, para-phenylenediamine, paratoluylenediamine, 2-chloro-para-phenylenediamine, 2,3-dimethyl-para-phenylenediamine, 2,6-dimethyl-para-phenylenediamine, 2,6-diethyl paraphenylenediamine, 2,5-dimethyl-para-phenylenediamine, N, N-dimethyl-para-phenylenediamine, N, N-diethyl-para-phenylenediamine, N, N-dipropyl-para-phenylenediamine, 4-amino-N, N-diethyl-3-methylaniline, N, N- bis- (β-hydroxyethyl) paraphenylenediamine, 4-N, N-bis- (β-hydroxyethyl) amino-2-methylaniline, 4-N, N-bis- (β-hydroxyethyl) amino-2-chloroaniline, 2-β-hydroxyethyl paraphenylenediamine, 2-fluoro-para-phenylenediamine, 2-isopropyl-para-phenylenediamine, N- (β-hydroxypropyl) -paraphenylenediamine, 2-hydroxymethyl-para-phenylenediamine, N, N-dimethyl-3-methyl-para-phenylenediamine, N, N - (ethyl, β-hydroxyethyl) paraphenylenediamine, N- (β, γ-dihydroxypropy) 1) para-phenylenediamine, N- (4'-aminophenyl) paraphenylenediamine, N-phenyl paraphenylenediamine, 2-β-hydroxyethyloxy para-phenylenediamine, 2-β-acetylaminoethyloxy para-phenylenediamine, N- (β-methoxyethyl) paraphenylene diamine, 4-aminophenylpyrrolidine, 2-thienyl paraphenylenediamine, 2-hydroxyethylamino-5-amino toluene, 3-hydroxy-1- (4'-aminophenyl) pyrrolidine and their addition salts with an acid. Of the paraphenylenediamines mentioned above, paraphenylenediamine, paratoluylenediamine, 2-isopropyl paraphenylenediamine, 2-β-hydroxyethyl paraphenylenediamine, 2-β-hydroxyethyloxy paraphenylenediamine, 2,6-dimethyl paraphenylenediamine, 2,6 ethyl paraphenylenediamine, 2,3-dimethyl paraphenylenediamine, N, N-bis- (β-hydroxyethyl) paraphenylenediamine, 2-chloro-para-phenylenediamine, 2-β-acetylaminoethyloxy-para-phenylenediamine, and their addition salts with an acid are particularly preferred.

Among the bis-phenylalkylenediamines, N, N'-bis- (β-hydroxyethyl) N, N'-bis (4'-aminophenyl) -1,3-diamino propanol, N, may be mentioned by way of example. , N'-bis- (β-hydroxyethyl) N, N'-bis- (4'-aminophenyl) ethylenediamine, N, N'-bis- (4-aminophenyl) tetramethylenediamine, N, N'-bis- ( β-hydroxyethyl) N, N'-bis (4-aminophenyl) tetramethylenediamine, N, N'-bis (4-methylaminophenyl) tetramethylenediamine, N, N'-bis (ethyl) N, N ' Bis (4'-amino, 3'-methylphenyl) ethylenediamine, 1,8-bis (2,5-diamino phenoxy) -3,6-dioxaoctane, and their addition salts. Among para-aminophenols, there may be mentioned, for example, para-aminophenol,

4-amino-3-methylphenol, 4-amino-3-fluoro phenol, 4-amino-3-chlorophenol, 4-amino-3-hydroxymethylphenol, 4-amino-2-methylphenol, 4-amino-2- hydroxymethyl phenol, 4-amino-2-methoxymethyl phenol, 4-amino-2-aminomethyl phenol, 4-amino 2- (β-hydroxyethylaminomethyl) phenol, 4-amino-2-fluoro phenol, and their addition salts with an acid.

Among the ortho-aminophenols, there may be mentioned by way of example, 2-amino phenol, 2-amino-5-methylphenol, 2-amino-6-methylphenol, 5-acetamido-2-amino phenol, and their addition salts.

Among the heterocyclic bases that may be mentioned by way of example are pyridine derivatives, pyrimidine derivatives and pyrazole derivatives.

Among the pyridine derivatives, mention may be made of the compounds described for example in patents GB 1 026 978 and GB 1 153 196, such as 2,5-diaminopyridine, 2- (4-methoxyphenyl) amino 3-amino pyridine, 3,4-diamino pyridine, and their addition salts. Other pyridinic oxidation bases useful in the present invention are the 3-amino pyrazolo [1, 5-a] -pyridines oxidation bases or their addition salts described for example in the patent application FR 2801308. By way of example, mention may be made of pyrazolo [1,5-a] pyridin-3-ylamine; 2-acetylamino pyrazolo [1,5-a] pyridin-3-ylamine; 2-morpholin-4-yl-pyrazolo [1,5-a] pyridin-3-ylamine; 3-amino-pyrazolo [1,5-a] pyridin-2-carboxylic acid; 2-methoxy-pyrazolo [1,5-a] pyridin-3-ylamino; (3-Amino-pyrazolo [1,5-a] pyridin-7-yl) -methanol; 2- (3-Amino-pyrazolo [1,5-a] pyridin-5-yl) -ethanol; 2- (3-Amino-pyrazolo [1,5-a] pyridin-7-yl) -ethanol; (3-amino-pyrazolo [1,5-a] pyridin-2-yl) -methanol; 3,6-diamino-pyrazolo [1,5-a] pyridine; 3,4-diamino-pyrazolo [1,5-a] pyridine; pyrazolo [1,5-a] pyridine-3,7-diamine; 7-morpholin-4-yl-pyrazolo [1,5-a] pyridin-3-ylamine; pyrazolo [1,5-a] pyridine-3,5-diamine; 5-morpholin-4-yl-pyrazolo [1,5-a] pyridin-3-ylamine; 2 - [(3-Amino-pyrazolo [1,5-a] pyridin-5-yl) - (2-hydroxyethyl) amino] ethanol; 2 - [(3-amino-pyrazolo [1,5-a] pyridin-7-yl) - (2-hydroxyethyl) - amino] ethanol; 3-amino-pyrazolo [1,5-a] pyridin-5-ol; 3-amino-pyrazolo [1,5-a] pyridin-4-ol; 3-amino-pyrazolo [1,5-a] pyridin-6-ol; 3-amino-pyrazolo [1,5-a] pyridin-7-ol; as well as their addition salts.

Among the pyrimidine derivatives, mention may be made of the compounds described, for example, in DE 2359399; JP 88-169571; JP 05-63124; EP 0770375 or patent application WO 96/15765 such as 2,4,5,6-tetraaminopyrimidine, 4-hydroxy 2,5,6-triaminopyrimidine, 2-hydroxy 4,5,6-triaminopyrimidine, , 4-dihydroxy-5,6-diaminopyrimidine, 2,5,6-triaminopyrimidine and their addition salts and tautomeric forms, when tautomeric equilibrium exists. Among the pyrazole derivatives, mention may be made of the compounds described in the DE patents

3843892, DE 4133957 and patent applications WO 94/08969, WO 94/08970, FR-A-2 733 749 and DE 195 43 988 such as 4,5-diamino-1-methyl pyrazole, 4,5-diamino-1, (β-hydroxyethyl) pyrazole, 3,4-diamino pyrazole, 4,5-diamino 1- (4'-chlorobenzyl) pyrazole, 4,5-diamino-1,3-dimethyl pyrazole, 4,5-diamino 3-methyl-1-phenyl pyrazole, 4,5-diamino-1-methyl-3-phenyl pyrazole, 4-amino-1,3-dimethyl-5-hydrazino pyrazole, 1-benzyl-4,5-diamino-3-methyl-pyrazole, 4,5-diamino-3-tert-butyl-methyl-pyrazole, 4,5-diamino-1-tert-butyl-3-methyl-pyrazole, 4,5-diamino-4- (β-hydroxyethyl) -3-methyl-pyrazole, 4,5-diamino-1-ethyl-3-methyl pyrazole, 4,5-diamino-1-ethyl-3- (4'-methoxyphenyl) pyrazole, 4,5-diamino-1-ethyl-3-hydroxymethyl pyrazole, 4, 5-diamino-3-hydroxymethyl-1-methyl pyrazole, 4,5-diamino-3-hydroxymethyl-1-isopropyl pyrazole, 4,5-diamino-3-methyl-1-isopropyl pyrazole, 4-amino-5- (2'-aminoethyl) ) amino 1, 3-dimeth pyrazole, 3,4,5-triamino pyrazole, 1-methyl 3,4,5-triamino pyrazole, 3,5-diamino-1-methyl-4-methylamino pyrazole, 3,5-diamino 4- (β hydroxyethyl) amino 1-methyl pyrazole, and their addition salts. It is also possible to use 4-5-diamino-1- (β-methoxyethyl) pyrazole.

The composition may optionally comprise one or more couplers advantageously chosen from those conventionally used for dyeing keratinous fibers.

Among these couplers, there may be mentioned meta-phenylenediamines, meta-aminophenols, meta-diphenols, naphthalenic couplers, heterocyclic couplers and their addition salts.

By way of example, mention may be made of 1,3-dihydroxybenzene, 1,3-dihydroxy-2-methylbenzene, 4-chloro-1,3-dihydroxybenzene and 2,4-diamino- (β- hydroxyethyloxy) benzene, 2-amino-4- (β-hydroxyethylamino) -1-methoxybenzene, 1,3-diamino benzene, 1,3-bis (2,4-diaminophenoxy) propane, 3-ureido aniline, 3-ureido 1-dimethylamino benzene, sesamol, 1-β-hydroxyethylamino-3,4-methylenedioxybenzene, α-naphthol, 2-methyl-1-naphthol, 6-hydroxyindole, 4-hydroxyindole, 4-hydroxy N-methylindole, 2-amino-3-hydroxypyridine, 6-hydroxybenzomorpholine 3,5-diamino-2,6-dimethoxypyridine, 1-N- (β-hydroxyethyl) amino-3 , 4-methylene dioxybenzene, 2,6-bis- (β-hydroxyethylamino) toluene, 6-hydroxy indoline, 2,6-dihydroxy-4-methyl pyridine, 1H-3-methyl-pyrazole-5-one, 1-phenyl 3-methyl pyrazole 5-one, 2,6-dimethyl pyrazolo [1,5-b] -1,2,4-triazole, 2,6-dimethyl [3,2-c] -1,2,4-triazole, 6-methyl pyrazolo [1,5-a] benzimidazole, their addition salts with an acid, and mixtures thereof.

In general, the addition salts of the oxidation bases and couplers which can be used are chosen especially from the addition salts with an acid such as the hydrochlorides, the hydrobromides, the sulphates, the citrates, the succinates, the tartrates, lactates, tosylates, benzenesulfonates, phosphates and acetates.

The oxidation base (s) each advantageously represent from 0.0001 to 10% by weight relative to the weight of the composition, and preferably from 0.005 to 5% by weight relative to the total weight of the composition.

The content of the coupler (s), if they are (are) present, is each advantageously from 0.0001 to 10% by weight relative to the weight of the composition, and preferably from 0.005 to 5% by weight. % by weight relative to the total weight of the composition.

The composition with the aminosilicon compound (s) of formula (I) may optionally comprise one or more direct dyes that may especially be chosen from cationic, neutral or anionic species.

As examples of suitable direct dyes, mention may be made of azo direct dyes; methinic; carbonyls; azinic; nitro (hetero) aryl; tri- (hetero) aryl methanes; porphyrins; phthalocyanines and natural direct dyes, alone or in mixtures.

More particularly, the azo dyes comprise a function -N = N- whose two nitrogen atoms are not simultaneously engaged in a ring. However, it is not excluded that one of the two nitrogen atoms of the sequence -N = N- is engaged in a cycle. The dyes of the family of methines are more particularly compounds comprising at least one sequence chosen from> C = C <and -N = C <whose two atoms are not simultaneously engaged in a ring. It is however specified that one of the nitrogen or carbon atoms of the chains can be engaged in a cycle. More particularly, the dyes of this family are derived from methine, azomethine, mono- and di-arylmethane compounds, indoamines (or diphenylamines), indophenols, indoanilines, carbocyanines, azacabocyanines and their isomers, diazacarbocyanines and their isomers, tetraazacarbocyanines, hemicyanines.

As regards the dyes of the carbonyl family, mention may be made, for example, of the dyes chosen from acridone, benzoquinone, anthraquinone, naphthoquinone, benzanthrone, anthranthrone, pyranthrone, pyrazolanthrone, pyrimidinoanthrone, flavanthrone, idanthrone, flavone, (iso) violanthrone, isoindolinone, benzimidazolone, isoquinolinone, anthrapyridone, pyrazoloquinazolone, perinone, quinacridone, quinophthalone, indigo, thioindigo, naphthalimide, anthrapyrimidine, diketopyrrolopyrrole, coumarin. As regards the dyes of the family of cyclic azines, there may be mentioned in particular azine, xanthene, thioxanthene, fluorindine, acridine, (di) oxazine, (di) thiazine, pyronine. The nitro (hetero) aromatic dyes are more particularly nitrobenzene or nitro pyridinic direct dyes.

As regards porphyrin or phthalocyanine-type dyes, it is possible to use cationic or non-cationic compounds, optionally comprising one or more metals or metal ions, for example alkali and alkaline-earth metals, zinc and silicon.

By way of example of particularly suitable direct dyes, mention may be made of the nitro dyes of the benzene series; azo direct dyes; azomethines; methinic; azacarbocyanines such as tetraazacarbocyanines (tetraazapentamethines); quinone direct dyes and in particular anthraquinone, naphthoquinone or benzoquinone dyes; direct azine dyes; xanthenics; triarylmethanics; indoamines; indigoids; phthalocyanines, porphyrins and natural direct dyes, alone or in mixtures.

These dyes may be monochromophoric dyes (that is to say comprising only one dye) or polychromophoric, preferably di- or tri-chromophoric dyes; the chromophores which may be identical or different, of the same chemical family or not. It should be noted that a polychromophoric dye comprises several radicals each derived from an absorbing molecule in the visible range between 400 and 800 nm. In addition, this absorbance of the dye does not require any prior oxidation thereof, or association with other (s) species (s) chemical (s).

In the case of polychromophoric dyes, the chromophores are connected to each other by means of at least one linker which may or may not be cationic.

Preferably, the linker is a linear, branched or cyclic C ₁ -C ₂₀ alkyl chain, optionally interrupted by at least one heteroatom (such as nitrogen, oxygen) and / or by at least one group comprising (CO, SO ₂ ), optionally interrupted by at least one heterocyclic ring which may or may not be condensed with a phenyl ring and comprising at least one quaternized nitrogen atom engaged in said ring and optionally at least one other heteroatom (such as oxygen, nitrogen or sulfur), optionally interrupted by at least one unsubstituted or substituted phenyl or naphthyl group, optionally at least one quaternary ammonium group substituted with two optionally substituted C ₁ -C ₅ alkyl groups; the linking arm does not comprise a nitro, nitroso or peroxo group.

If the heterocycles or aromatic rings are substituted, they are substituted for example by one or more alkyl radicals -C ₈ optionally substituted by hydroxy, alkoxy dC _2, hydroxy C ₂ -C ₄ -alkoxy, acetylamino, amino substituted by one or two C ₁ -C ₄ alkyl radicals, optionally bearing at least one hydroxyl group or both radicals which can form, with the nitrogen atom to which they are attached, a 5- or 6-membered heterocycle, optionally comprising another identical or different heteroatom; nitrogen; a halogen atom; a hydroxyl group; an alkoxy radical in dC ₂ ; a C ₂ -C ₄ hydroxyalkoxy radical; a radical amino; an amino radical substituted with one or two identical or different C ₁ -C ₄ alkyl radicals optionally carrying at least one hydroxyl group.

Among the benzene direct dyes that may be used according to the invention, the following compounds may be mentioned in a nonlimiting manner: - 1,4-diamino-2-nitrobenzene,

1-amino-2-nitro-4-β-hydroxyethylaminobenzene

1-amino-2-nitro-4-bis (β-hydroxyethyl) -aminobenzene

-1,4-bis (β-hydroxyethylamino) -2-nitrobenzene

1-β-hydroxyethylamino-2-nitro-4-bis- (β-hydroxyethylamino) -benzene-1-β-hydroxyethylamino-2-nitro-4-aminobenzene

- 1-β-hydroxyethylamino-2-nitro-4- (ethyl) (β-hydroxyethyl) -aminobenzene

1-amino-3-methyl-4-β-hydroxyethylamino-6-nitrobenzene

1-amino-2-nitro-4-β-hydroxyethylamino-5-chlorobenzene

- 1, 2-diamino-4-nitrobenzene - 1-amino-2-β-hydroxyethylamino-5-nitrobenzene

- 1, 2-bis (β-hydroxyethylamino) -4-nitrobenzene

1-amino-2-tris (hydroxymethyl) methylamino-5-nitrobenzene

- 1-Hydroxy-2-amino-5-nitrobenzene

1-Hydroxy-2-amino-4-nitrobenzene-1-hydroxy-3-nitro-4-aminobenzene

- 1-Hydroxy-2-amino-4,6-dinitrobenzene

- 1-β-hydroxyethyloxy-2-β-hydroxyethylamino-5-nitrobenzene

1-Methoxy-2-β-hydroxyethylamino-5-nitrobenzene

1-β-hydroxyethyloxy-3-methylamino-4-nitrobenzene-1-β, γ-dihydroxypropyloxy-3-methylamino-4-nitrobenzene

- 1-β-hydroxyethylamino-4-β, γ-dihydroxypropyloxy-2-nitrobenzene

- 1-β, γ-dihydroxypropylamino-4-trifluoromethyl-2-nitrobenzene

- 1-β-hydroxyethylamino-4-trifluoromethyl-2-nitrobenzene

- 1-β-hydroxyethylamino-3-methyl-2-nitrobenzene-1-β-aminoethylamino-5-methoxy-2-nitrobenzene

- 1-Hydroxy-2-chloro-6-ethylamino-4-nitrobenzene

- 1-Hydroxy-2-chloro-6-amino-4-nitrobenzene

1-Hydroxy-6-bis- (β-hydroxyethyl) -amino-3-nitrobenzene

1-β-hydroxyethylamino-2-nitrobenzene-1-hydroxy-4-β-hydroxyethylamino-3-nitrobenzene.

Among the azo, azomethine, methine or tetraazapentamethine direct dyes that may be used according to the invention, mention may be made of the cationic dyes described in patent applications WO 95/15144, WO 95/01772 and EP 714954;

FR 2189006, FR 2285851, FR-2140205, EP 1378544, EP 1674073. Thus, the following dyestuffs of formulas (II) to (V), and preferably the compounds of formulas (II) and (IV), may be mentioned in particular. :

in which :

D represents a nitrogen atom or the group -CH,

R 1 and R ₂ , which may be identical or different, represent a hydrogen atom; a C ₁ -C ₄ alkyl radical which may be substituted with a -CN, -OH or -NH ₂ radical or form, with a carbon atom of the benzene ring, an optionally oxygenated or nitrogen-containing heterocycle, which may be substituted by one or more alkyl radicals in dC ₄ ; a 4'-aminophenyl radical,

R ₃ and R ' ₃ , which may be identical or different, represent a hydrogen or halogen atom chosen from chlorine, bromine, iodine and fluorine, a cyano, a C 1 -C ₄ alkyl or a C ₁ -C ₄ alkoxy radical; acetyloxy,

X ^" represents an anion preferably chosen from chloride, methyl sulfate and acetate,

A represents a group chosen by the following structures A1 to A18:

A 1.0 ^Λ 12

AT

in which R ₄ represents a C 1 -C ₄ alkyl radical which may be substituted with a C ₁ -C ₄ alkoxy radical;

in which :

R ₆ represents a hydrogen atom or a C ₁ -C ₄ alkyl radical,

R ₇ represents a hydrogen atom, an alkyl radical which may be substituted with a -CN radical or with an amino group, a 4'-aminophenyl radical or, with R _6, forms an optionally oxygenated and / or nitrogen-containing heterocycle which may be substituted by a C ₁ -C ₄ alkyl radical,

R ₈ and R _9, identical or different, represent a hydrogen atom, a halogen atom such as bromine, chlorine, iodine or fluorine, an alkyl radical -C ₄ alkoxy or C _4, a -CN radical,

X represents an anion preferably chosen from the following chloride, methyl sulfate and acetate, B6:

B ₄ B ₅ B ₆ wherein R _{1 0} represents a C ₁ -C ₄ alkyl radical, R ₁ and R ₂ , which may be identical or different, represent a hydrogen atom or a C ₁ -C ₄ alkyl radical;

(IV) (IV) in which:

R ₁ represents a hydrogen atom, a C ₁ -C ₄ alkoxy radical, a halogen atom such as bromine, chlorine, iodine or fluorine,

R ₄ represents a hydrogen atom, a C 1 -C ₄ alkyl radical or forms, with a carbon atom of the benzene ring, an optionally oxygenated heterocycle and / or substituted by one or more C ₁ -C ₄ alkyl groups,

R ₅ represents a hydrogen or halogen atom such as bromine, chlorine, iodine or fluorine,

Ri ₆ and Ri ₇ , which may be identical or different, represent a hydrogen atom or an alkyl radical in dC ₄ ,

Di and D ₂ , which may be identical or different, represent a nitrogen atom or the group -CH, m = 0 or 1, it being understood that when Ri ₃ represents an unsubstituted amino group, then Di and D ₂ simultaneously represent a group - CH and m = 0,

X ^" represents an anion preferably selected from chloride, methyl sulfate and acetate, E represents a group chosen by the following structures E1 to E8:

E6 E7 E8

in which R 'represents an alkyl radical in dC ₄ ; when m = 0 and Di represents a nitrogen atom, then E can also designate a group of structure E9 following:

in which R 'represents a C ₁ -C ₄ alkyl radical. GN = NJ (V) in which: the symbol G represents a group chosen from the following structures d to G ₃ :

G ₁ G ₂ ^G 3 structures G- | to G3 in which R ₁₈ denotes a C ₁ -C ₄ alkyl radical, a phenyl radical which may be substituted by a C ₁ -C ₄ alkyl radical or a halogen atom chosen from chlorine, bromine, iodine and fluorine;

R ₁₉ denotes a C ₁ -C ₄ alkyl radical or a phenyl radical;

R ₂₀ and R ₂₁ , which may be identical or different, represent a C ₁ -C ₄ alkyl radical or a phenyl radical, or form together in G ₁ a benzene ring substituted by one or more C ₁ -C ₄ alkyl radicals, alkoxy radical, C ₁ -C _4, or NO _2, or form together in G ₂ a benzene ring optionally substituted by one or more alkyls C ₁ -C ₄ alkoxy, C ₁ -C ₄ alkyl, or NO _2;

R ₂₀ may further denote a hydrogen atom; Z is an oxygen atom, sulfur atom or a group -NR ₁₉ ;

M represents a group -CH, -CR (R denoting C ₁ -C ₄ alkyl), or -NR ₂₂ (X-) _r ;

K represents a group -CH, -CR (R denoting C ₁ -C ₄ alkyl), or -NR ₂₂ (X-); P represents a group -CH, -CR (R denoting C ₁ -C ₄ alkyl), or -NR ₂₂ (X ^" ) _r ; r denotes zero or 1;

R ₂₂ represents an O ^" atom, a C ₁ -C ₄ alkoxy radical, or a C ₁ -C ₄ alkyl radical;

R ₂₃ and R _24, identical or different, represent a hydrogen or halogen atom chosen from chlorine, bromine, iodine and fluorine, an alkyl radical in C ₁ -C ₄ alkoxy, C ₁ - C ₄ , a radical -NO ₂ ;

X ^" represents an anion preferably selected from chloride, iodide, methyl sulfate, ethyl sulfate, acetate and perchlorate; with the proviso that if R ₂₂ denotes O ^", then r denotes zero; if K or P or M denote -N- -C ₄ alkyl X ^', then R ₂₃ or R ₂₄ is or is not different from a hydrogen atom; if K denotes -NR ₂₂ (X-) _r , then M = P = -CH, -CR; if M denotes -NR ₂₂ (X ^" ), then K = P = -CH, -CR, if P denotes -NR ₂₂ (X ^~ ) _r , then K = M and denote -CH or -CR; denotes a sulfur atom with R ₂ i denoting dC ₄ alkyl, then R ₂₀ is different from a hydrogen atom, if Z denotes -NR ₂₂ with R ₉ denoting C ₁ -C ₄ alkyl, then at least one one of the radicals Ris, R ₂₀ or R ₂ i of the group of structure G ₂ is different from an alkyl radical in dC ₄ , the symbol J represents: - (a) a group of structure J ₁ following:

structure J ₁ in which,

R ₂₅ represents a hydrogen atom, a halogen atom chosen from chlorine, bromine, iodine and fluorine, an alkyl radical in C ₁ -C ₄ alkoxy, C ₁ -C ₄ alkyl, a radical - OH, -NO ₂ , -NHR ₂₈ , -NR ₂₉ R ₃₀ , -NHCO-C ₁ -C ₄ alkyl, or form with R ₂₆ a 5- or 6-membered ring containing or not one or more heteroatoms chosen from nitrogen, oxygen or sulfur;

R ₂₆ represents a hydrogen atom, a halogen chosen from chlorine, bromine, iodine and fluorine, an alkyl radical C ₁ -C ₄ alkoxy C ₁ -C ₄ alkyl, or together with R ₂₇ or R ₂₈ a 5- or 6-membered ring containing or not one or more heteroatoms selected from nitrogen, oxygen or sulfur; R ₂₇ represents a hydrogen atom, a radical -OH, a radical -NHR ₂₈ , a radical - NR ₂₉ R ₃ o;

R ₂₈ represents a hydrogen atom, a C ₁ -C ₄ alkyl radical, a monohydroxyalkyl radical, a C ₁ -C ₄ polyhydroxyalkyl, C ₂ -C _4, a phenyl radical; R ₂₉ and R _30, identical or different, represent an alkyl radical in C ₁ -C ₄ monohydroxyalkyl radical, C ₁ -C ₄ polyhydroxyalkyl, C ₂ -C ₄ alkyl;

(b) a 5- or 6-membered nitrogenous heterocyclic group capable of containing other heteroatoms and / or carbonyl groups and which may be substituted by one or more C ₁ -C ₄ alkyl, amino or phenyl radicals, and in particular a following structure group J ₂ :

J ₂ structure in which,

R ₃ i and R ₃₂ , which may be identical or different, represent a hydrogen atom, a C ₁ -C ₄ alkyl radical or a phenyl radical;

CH,

Y denotes the radical -CO- or the radical - ^c -; n = 0 or 1, where, when n denotes 1, U denotes the radical -CO-.

In the structures (II) to (V) defined above, the C ₁ -C ₄ alkyl or alkoxy group preferably denotes methyl, ethyl, butyl, methoxy or ethoxy. following:

Mention may also be made, among the azo direct dyes, of the following dyes, described in COLOR INDEX INTERNATIONAL 3rd edition:

- Disperse Red 17

- Basic Red 22

- Basic Red 76

- Basic Yellow 57

- Basic Brown 16

- Basic Brown 17

- Disperse Black 9.

There may also be mentioned 1 - (4'-aminodiphenylazo) -2-methyl-4bis- (β-hydroxyethyl) aminobenzene.

Among the quinone direct dyes, mention may be made of the following dyes:

- Disperse Red 15

- Violet Solvent 13

- Disperse Violet 1

- Disperse Violet 4

- Disperse Blue 1

- Disperse Violet 8

- Disperse Blue 3

- Disperse Red 1 1 - Disperse Blue 7

- Basic Blue 22

- Disperse Violet 15

- Basic Blue 99 as well as the following compounds:

1-N-methylmorpholiniumpropylamino-4-hydroxyanthraquinone-1-aminopropylamino-4-methylaminoanthraquinone-1-aminopropylaminoanthraquinone

5-β-hydroxyethyl-1,4-diaminoanthraquinone-2-aminoethylaminoanthraquinone

-1,4-Bis- (β, γ-dihydroxypropylamino) -anthraquinone. Among the azine dyes, mention may be made of the following compounds:

- Basic Blue 17

Basic Red 2 Among the triarylmethane dyes that can be used according to the invention, mention may be made of the following compounds:

- Basic Green 1

- Basic Violet 3

- Basic Violet 14 - Basic Blue 7

- Basic Blue 26

Among the indoamine dyes that can be used according to the invention, mention may be made of the following compounds:

2-β-hydroxyethylamino-5- [bis- (β-4'-hydroxyethyl) amino] anilino-1,4-benzoquinone-2-β-hydroxyethylamino-5- (2'-methoxy-4'-amino) anilino -1,4-benzoquinone

3-N (2'-Chloro-4'-hydroxy) phenyl-acetylamino-6-methoxy-1,4-benzoquinone imine

3-N (3'-Chloro-4'-methylamino) phenyl-ureido-6-methyl-1,4-benzoquinone imine

3- [4'-N- (ethyl, carbamylmethyl) amino] -phenyl-ureido-6-methyl-1,4-benzoquinone imine. Among the tetraazapentamethine type dyes that can be used according to the invention, mention may be made of the following compounds appearing in the table below, An being defined

X represents an anion preferably selected from chloride, iodide, methyl sulfate, ethyl sulfate, acetate and perchlorate.

Among the polychromophoric dyes, mention may be made more particularly of azo and / or azomethine (hydrazonic) di- or trichromophoric dyes, symmetrical or not, comprising on the one hand at least one aromatic heterocycle comprising 5 or 6 ring members, optionally fused, comprising at least one quaternized nitrogen atom engaged in said heterocycle and optionally at least one other heteroatom (such as nitrogen, sulfur, oxygen), and on the other hand, at least one phenyl or naphthyl group, optionally substituted, optionally bearing at least one OR group with R representing a hydrogen atom, an optionally substituted C ₁ -C ₆ alkyl radical, an optionally substituted phenyl ring, or at least one N (R ') _{2 group} with R identical or not, representing a hydrogen atom, an optionally substituted alkyl radical at dC ₆ , an optionally substituted phenyl ring; the radicals R 'which can form, with the nitrogen atom to which they are bonded, a saturated 5- or 6-membered heterocycle, or else one and / or both radicals R' may each form with the carbon atom of the aromatic ring placed in ortho of the nitrogen atom, a 5- or 6-membered saturated heterocycle.

As aromatic cationic heterocycle, there may be mentioned, preferably, 5- or 6-membered rings comprising 1 to 3 nitrogen atoms, preferably 1 or 2 nitrogen atoms, one being quaternized; said heterocycle being optionally further fused to a benzene ring. It should also be noted that the heterocycle may optionally comprise another heteroatom different from nitrogen, such as sulfur or oxygen.

If the heterocycles or phenyl or naphthyl groups are substituted, they are, for example, one or more alkyl radicals in dC ₈ optionally substituted with a hydroxyl, alkoxy group in dC ₂ , hydroxyalkoxy in C ₂ -C ₄ , acetylamino, amino substituted by one or two C ₁ -C ₄ alkyl radicals, optionally carrying at least one hydroxyl group or both radicals which can form with the nitrogen atom to which they are attached, a 5- or 6-membered heterocycle, optionally comprising another heteroatom identical to or different from nitrogen; a halogen atom; a hydroxyl group; an alkoxy radical in dC ₂ ; a C ₂ -C ₄ hydroxyalkoxy radical; an amino radical; an amino radical substituted with one or two identical or different C ₁ -C ₄ alkyl radicals optionally bearing at least one hydroxyl group.

These polychromophores are connected to one another by means of at least one linking arm optionally comprising at least one quaternized nitrogen atom, which may or may not be engaged in a saturated or unsaturated, optionally aromatic heterocycle. Preferably, the linker is a linear, branched or cyclic C ₁ -C ₂₀ alkyl chain optionally interrupted by at least one heteroatom (such as nitrogen, oxygen) and / or at least one group comprising CO, SO ₂ ), optionally interrupted by at least one heterocycle condensed or not with a phenyl ring and comprising at least one quaternized nitrogen atom engaged in said ring and optionally at least one other heteroatom (such as oxygen, nitrogen or sulfur), optionally interrupted by at least one unsubstituted or substituted phenyl or naphthyl group, optionally at least one quaternary ammonium group substituted with two optionally substituted C ₁ -C ₅ alkyl groups; the linking arm does not comprise a nitro, nitroso or peroxo group. The bond between the linker and each chromophore is generally by means of a heteroatom which substitutes the phenyl or naphthyl ring or by means of the quaternized nitrogen atom of the cationic heterocycle.

The dye may comprise identical or different chromophores.

By way of examples of such dyes, reference may especially be made to the patent applications EP 1637566, EP 1619221, EP 1634926, EP 1619220, EP 1672033, EP 1671954, EP 1671955, EP 1679312, EP 1671951, EP167952, EP167971, WO 06/063866, WO 06/063867, WO 06/063868, WO 06/063869, EP 1408919, EP 1377264, EP 1377262, EP 1377261, EP 1377263, EP 1399425, EP 13991-17, EP 1416909, EP 1399116, EP 1671560. It is also possible to use the cationic direct dyes mentioned in applications EP 1006153, which describes dyes comprising two anthraquinone chromophores connected by means of a cationic linker; EP 1433472, EP 1433474, EP 1433471 and EP 1433473 which describe identical or different dichromophoric dyes, connected by a cationic or non-cationic linking arm, as well as EP 6291333 which describes in particular dyes comprising three chromophores, one of them being an anthraquinone chromophore to which are connected two azo-type chromophores or diazacarbocyanine or one of its isomers.

Among the natural direct dyes that may be used according to the invention, lawsone, juglone, alizarin, purpurine, carminic acid, kermesic acid, purpurogalline, protocatechaldehyde, indigo, isatin , curcumin, spinulosin, apigenidin. It is also possible to use the extracts or decoctions containing these natural dyes, and in particular poultices or extracts made from henna.

The direct dye (s) represent more particularly from 0.0001 to 10% by weight relative to the total weight of the composition, and preferably from 0.005 to 5% by weight relative to the total weight of the composition.

Preferably, the direct dyes used are neutral or cationic direct dyes.

According to a particular embodiment of the invention, the composition comprising the aminosilicon compound (s) of formula (I) comprises one or more fatty substances.

The term "fatty substance" means an organic compound which is insoluble in water at ordinary temperature (25%) and at atmospheric pressure (760 mmHg) (solubility less than 5% and preferably less than 1%, even more preferentially less than 0.1%). ). In addition, these organic compounds preferably have lubricating properties. In particular, for the purpose of the present invention, a fatty substance is a compound chosen from a fatty alcohol, a fatty acid, a fatty acid ester, a fatty alcohol ester, a mineral, vegetable, animal or synthetic oil, a silicone or wax. It is recalled that for the purposes of the invention, the alcohols, esters and fatty acids have at least one hydrocarbon group, linear or branched, saturated or unsaturated, comprising 6 to 30 carbon atoms, optionally substituted, in particular by one or several hydroxyl groups (in particular 1 to 4). If unsaturated, these compounds may comprise one to three carbon-carbon double bonds, conjugated or otherwise.

As oils that can be used in the composition of the invention, mention may be made, for example, of: hydrocarbon-based oils of animal origin, such as perhydrosqualene;

hydrocarbon-based oils of vegetable origin, such as liquid triglycerides of fatty acids containing from 6 to 30 carbon atoms, for instance triglycerides of heptanoic or octanoic acids or, for example, sunflower, corn or soybean oils, squash, grape seed, sesame, hazelnut, apricot, macadamia, arara, sunflower, castor oil, avocado, triglycerides of caprylic / capric acids such as those sold by Stearineries Dubois or those sold under the names Miglyol ^® 810, 812 and 818 by Dynamit Nobel, jojoba oil, shea butter oil;

- linear or branched hydrocarbons of mineral or synthetic origin, such as paraffin oils, volatile or nonvolatile, and derivatives thereof, petroleum jelly, liquid petroleum jelly, polydecenes, hydrogenated polyisobutene such as Parleam ^®; isoparaffins such as isohexadecane and isodecane.

the fatty alcohols are saturated or unsaturated, linear or branched, and contain from 8 to 30 carbon atoms, mention may be made of cetyl alcohol, stearyl alcohol and their mixture (cetylstearyl alcohol), octyldodecanol, 2- butyloctanol, 2-hexyldecanol, 2-undecylpentadecanol, oleic alcohol or linoleic alcohol; partially fluorinated hydrocarbon oils and / or silicone oils such as those described in document JP-A-2-295912; fluoro oils can also include perfluoromethyl and perfluoro-1, 3-dimethylcyclohexane, sold under the names "FLUTEC ^® PC1" and "FLUTEC ^® PC3" by the company BNFL Fluorochemicals; perfluoro-1,2-dimethylcyclobutane; perfluoroalkanes such as dodecafluoropentane and tetradecafluorohexane, sold under the names "PF 5050 ^®" and "PF 5060 ^®" by the company 3M, or bromoperfluorooctyl sold under the name "FORALKYL ^®" by the company Atochem; nonafluoromethoxybutane and nonafluoroethoxyisobutane; perfluoromorpholine derivatives, such as 4-trifluoromethylperfluoromorpholine sold under the name "PF 5052 ^®" by the company 3M.

The wax or the waxes are chosen in particular from Carnauba wax, Candelila wax, and Alfa wax, paraffin wax, ozokerite, vegetable waxes such as olive wax, rice wax hydrogenated jojoba wax or the absolute waxes of flowers such as the essential wax of blackcurrant sold by the company BERTIN (France), animal waxes such as beeswax, or modified beeswax (cerabellina) ; other waxes or waxy raw materials that can be used according to the invention are, in particular, marine waxes, such as the one sold by SOPHIM under the reference M82, and polyethylene or polyolefin waxes in general. The fatty acids may be saturated or unsaturated and have from 6 to 30 carbon atoms, in particular from 9 to 30 carbon atoms. They are chosen more particularly from myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, linoleic acid, linolenic acid and isostearic acid,

The esters are esters of saturated or unsaturated, linear or branched C ₁ -C 6 aliphatic or saturated or unsaturated alcohols or linear or branched C 1 -C ₂₆ aliphatic or saturated or unsaturated aliphatic or monohydric alcohols, the total number of carbon of the esters being greater than or equal to 10.

Among the monoesters, mention may be made of dihydroabiethyl behenate; octyldodecyl behenate; isoketyl behenate; cetyl lactate; C ₁ -C ₅ alkyl lactate; isostearyl lactate; lauryl lactate; linoleyl lactate; oleyl lactate; (iso) stearyl octanoate; isocetyl octanoate; octyl octanoate; cetyl octanoate; decyl oleate; isocetyl isostearate; isocetyl laurate; isocetyl stearate; isodecyl octanoate; isodecyl oleate; isononyl isononanoate; isostearyl palmitate; methyl ricinoleate acetyl; myristyl stearate; octyl isononanoate; 2-ethylhexyl isononate; octyl palmitate; octyl pelargonate; octyl stearate; octyldodecyl erucate; oleyl erucate; ethyl palmitates and isopropyl palmitate, ethyl-2-hexyl palmitate, 2-octyldecyl palmitate, alkyl myristates such as isopropyl, butyl, cetyl, 2-octyldodecyl myristate; , styryl, hexyl stearate, butyl stearate, isobutyl stearate; dioctyl malate, hexyl laurate, 2-hexyldecyl laurate. Still in the context of this variant, it is also possible to use esters of di or tricarboxylic acids, C ₄ -C ₂₂ alcohols -C ₂₂ and acid esters of mono-, di or tricarboxylic acids and alcohols di, tri , C ₂ -C ₂₆ tetra or pentahydroxy.

These include: diethyl sebacate; diisopropyl sebacate; diisopropyl adipate; di-propyl adipate; dioctyl adipate; diisostearyl adipate; dioctyl maleate; glyceryl undecylenate; octyldodecyl stearoyl stearate; pentaerythrityl monoricinoleate; pentaerythrityl tetraisononanoate; pentaerythrityl tetrapelargonate; pentaerythrityl tetraisostearate; pentaerythrityl tetraoctanoate; propylene glycol dicaprylate; propylene glycol dicaprate, tridecyl erucate; triisopropyl citrate; triisotearyl citrate; glyceryl trilactate; glyceryl trioctanoate; trioctyldodecyl citrate; trioleyl citrate, propylene glycol dioctanoate; neopentyl glycol diheptanoate; diethylene glycol diisanonate; and polyethylene glycol distearates. Among the esters mentioned above, it is preferred to use ethyl, isopropyl, myristyl, cetyl, stearyl palmitates, ethyl-2-hexyl palmitate, 2-octyldecyl palmitate, myristates of alkyls such as isopropyl, butyl, cetyl, 2-octyldodecyl myristate, hexyl stearate, butyl stearate, isobutyl stearate; dioctyl malate, hexyl laurate, 2-hexyldecyl laurate and isononyl isononanate, cetyl octanoate.

The composition may also comprise, as fatty ester, esters and diesters of C ₆ -C ₃₀ , preferably C ₁₂ -C _22, fatty acid sugars. It is recalled that "sugar" is understood to mean oxygenated hydrocarbon compounds which have several alcohol functions, with or without an aldehyde or ketone function, and which contain at least 4 carbon atoms. These sugars can be monosaccharides, oligosaccharides or polysaccharides.

Suitable sugars include, for example, sucrose (or sucrose), glucose, galactose, ribose, fuctose, maltose, fructose, mannose, arabinose, xylose, lactose, and their derivatives. especially alkylated, such as methylated derivatives such as methylglucose.

The esters of sugars and of fatty acids may be chosen in particular from the group comprising the esters or mixtures of esters of sugars described previously and of C ₆ -C _30, preferably Ci ₂ -C ₂₂ , linear fatty acids. or branched, saturated or unsaturated. If unsaturated, these compounds may comprise one to three carbon-carbon double bonds, conjugated or otherwise.

The esters according to this variant may also be chosen from mono-, di-, tri- and tetraesters, polyesters and mixtures thereof.

These esters may be for example oleate, laurate, palmitate, myristate, behenate, cocoate, stearate, linoleate, linolenate, caprate, arachidonates, or mixtures thereof, such as, in particular, the mixed oleo-palmitate, oleostearate and palmitostearate esters. More particularly, the mono- and di-esters are used, and especially the mono- or dioleate, stearate, behenate, oleopalmitate, linoleate, linolenate, oleostearate, sucrose, glucose or methylglucose.

By way of example, mention may be made of the product sold under the name Glucate® DO by the company Amerchol, which is a methylglucose dioleate.

Examples of esters or mixtures of fatty acid esters are:

the products sold under the names F160, F140, F110, F90, F70, SL40 by the company Crodesta, respectively denoting sucrose palmito-stearates formed of 73% of monoester and 27% of di- and tri-ester, of 61% monoester and 39% di-, tri- and tetraester, 52% monoester and 48% di-, tri- and tetraester, 45% monoester and 55% di-, tri- and tetraester, 39% monoester and 61% di-, tri-, and tetraester, and sucrose mono-laurate;

the products sold under the name Ryoto Sugar Esters, for example referenced B370 and corresponding to sucrose behenate formed from 20% monoester and 80% di-triester-polyester;

the sucrose mono-dipalmito-stearate marketed by Goldschmidt under the name Tegosoft® PSE.

The silicones that may be used in the cosmetic compositions of the present invention are volatile or cyclic, linear or branched, volatile or non-volatile silicones, organic or non-modified, having a viscosity of 5 × 10 ⁶ to 2.5 m ² / s at 25 ° C. ⁰ C and preferably 1 .10 ⁵ to 1 m ² / s.

The silicones that can be used in accordance with the invention can be in the form of oils, waxes, resins or gums. Preferably, the silicone is chosen from polydialkylsiloxanes, in particular polydimethylsiloxanes (PDMS), and organomodified polysiloxanes comprising at least one functional group chosen from poly (oxyalkylene) groups, amino groups and alkoxy groups.

Organopolysiloxanes are further defined in Walter Noll's "Chemistry and Technology of Silicones" (1968), Academy Press. They can be volatile or nonvolatile.

When they are volatile, the silicones are more particularly chosen from those having a boiling point of between 60 ^° C. and 260 ^° C., and even more particularly from: (i) cyclic polydialkylsiloxanes containing from 3 to 7, preferably from 4 to 5 silicon atoms. It is, for example, octamethylcyclotetrasiloxane sold under the name Volatile Silicone ^® 7207 by Union Carbide or SILBIONE ^® 70045 V2 by Rhodia, decamethylcyclopentasiloxane sold under the name Volatile Silicone ^® 7158 by Union Carbide, and SILBIONE ® 70045 V5 by RHODIA, as well as their mixtures. Also exemplary Cyclocopolymers the dimethylsiloxane / methylalkylsiloxane type, such as Volatile Silicone ^® FZ 3109 sold by the company Union Carbide, of formula: r- D "- D ¹ D" - D ¹ - I

CH '3,''CH ₃ with D'': ^~ Si - O - with D ¹ : - Si - O -

CH ₃ C ₈ H ₁₇ Cyclic polydialkylsiloxane mixtures with organic compounds derived from silicon may also be mentioned, such as the mixture of octamethylcyclotetrasiloxane and tetramethylsilylpentaerythritol (50/50) and the mixture of octamethylcyclotetrasiloxane and oxy-1 1 '- (hexa-2,2,2', 2 ', 3,3'-trimethylsilyloxy) bis-neopentane; (ii) linear volatile polydialkylsiloxanes having 2 to 9 silicon atoms and having a viscosity of less than or equal to 5 × 10 ^-6 m ² / s at 25 ^° C. It is, for example, decamethyltetrasiloxane sold in particular under the name " SH 200 "by TORAY SILICONE Silicones in this class are also described in the article published in Cosmetics and Toiletries, Vol 91, Jan. 76, p 27-32 - TODD & BYERS Volatile Silicone fluids for cosmetics ".

Non-volatile polydialkylsiloxanes, polydialkylsiloxane gums and resins, polyorganosiloxanes modified with the above organofunctional groups and mixtures thereof are preferably used.

These silicones are more particularly chosen from polydialkylsiloxanes, among which may be mentioned mainly polydimethylsiloxanes with trimethylsilyl end groups. The viscosity of the silicones is measured at 25% according to ASTM 445 Appendix C.

Among these polydialkylsiloxanes, mention may be made, without limitation, of the following commercial products: SILBIONE® oils of the 47 and 70 047 series or the MIRASIL® oils marketed by RHODIA, such as, for example, the 70 047 V 500 000 oil;

the oils of the MIRASIL® series marketed by RHODIA;

the oils of the 200 series of Dow Corning, such as DC200 having a viscosity of 60,000 mm ² / s; - VISCASIL® oils from GENERAL ELECTRIC and some oils from SF series (SF 96, SF 18) from GENERAL ELECTRIC.

Mention may also be made of polydimethylsiloxanes with dimethylsilanol end groups known under the name of dimethiconol (CTFA), such as the oils of the 48 series from the company RHODIA. In this class of polydialkylsiloxanes, mention may also be made of the products sold under the names "ABIL WAX® 9800 and 9801" by GOLDSCHMIDT, which are polydialkyl (C ₁ -C ₂₀ ) siloxanes.

The silicone gums that can be used in accordance with the invention are in particular polydialkylsiloxanes, preferably polydimethylsiloxanes having high average molecular weights of between 200,000 and 1,000,000 used alone or in a mixture in a solvent. This solvent may be chosen from volatile silicones, polydimethylsiloxane (PDMS) oils and polyphenylmethylsiloxane oils.

(PPMS), isoparaffins, polyisobutylenes, methylene chloride, pentane, dodecane, tridecane or mixtures thereof.

More particularly useful products according to the invention are mixtures such as:

mixtures formed from an end-hydroxylated polydimethylsiloxane or dimethiconol (CTFA) and a cyclic polydimethylsiloxane also called cyclomethicone (CTFA) such as the product Q2 1401 sold by the company Dow Corning;

mixtures of a polydimethylsiloxane gum and a cyclic silicone such as the product SF1214 Silicone Fluid from the company General Electric, this product is an SF30 gum corresponding to a dimethicone, having a number-average molecular weight of 500,000 solubilized in SF 1202 Silicone Fluid oil corresponding to decamethylcyclopentasiloxane;

mixtures of two PDMSs of different viscosities, and more particularly of a PDMS gum and a PDMS oil, such as the product SF 1236 from the company General Electric. The product SF 1236 is the mixture of an SE 30 gum defined above having a viscosity of 20 m ² / s and an SF 96 oil with a viscosity of 5.10 ⁶ m ² / s.

This product preferably comprises 15% of SE gum and 85% of an SF 96 oil. The organopolysiloxane resins used in accordance with the invention are crosslinked siloxane systems containing the units:

R ₂ SiO ₂ Z ₂ , R ₃ SiOi ₇₂ , RSiO ₃ Z ₂ and SiO _4/2 wherein R represents an alkyl having 1 to 16 carbon atoms. Among these products, those that are particularly preferred are those in which R denotes a C ₁ -C ₄ lower alkyl group, more particularly methyl.

These resins include the product marketed under the name "DOW

CORNING 593 "or those marketed under the names" SILICONE FLUID SS 4230 and SS 4267 "by the company GENERAL ELECTRIC and which are silicones of dimethyl / trimethyl siloxane structure.

Mention may also be made of the trimethylsiloxysilicate type resins sold in particular under the names X22-4914, X21 -5034 and X21 -5037 by the company

Shin-Etsu. The organomodified silicones that may be used in accordance with the invention are silicones as defined above and comprising in their structure one or more organofunctional groups attached via a hydrocarbon-based group.

In addition to the silicones described above, the organomodified silicones may be polydiarylsiloxanes, especially polydiphenylsiloxanes, and polyalkylarylsiloxanes functionalized with the organofunctional groups mentioned above.

The polyalkylarylsiloxanes are particularly chosen from polydimethyl / methylphenylsiloxanes and linear and / or branched polydimethyl / diphenylsiloxanes with a viscosity ranging from 1.1 CT ⁵ to 5.10 ² m ² / s at 25%. Among these polyalkylarylsiloxanes, mention may be made, by way of example, of the products sold under the following names:

. SILBIONE® oils of the 70 641 series from RHODIA; . RHODORSIL® 70 633 and 763 RHODIA series of oils; . DOW CORNING 556 COSMETIC GRAD FLUID oil from DOW CORNING; . silicones of the PK series from BAYER, such as the product PK20;

. silicones of the PN, PH series from BAYER, such as PN1000 and

PH1000;

. some oils from the SF series of GENERAL ELECTRIC such as SF 1023, SF

1,154, SF 1250, SF 1265. Among the organomodified silicones, mention may be made of polyorganosiloxanes comprising:

polyethyleneoxy and / or polypropyleneoxy groups optionally comprising C ₆ -C ₂₄ alkyl groups such as the products known as dimethicone copolyol sold by the company Dow Corning under the name DC 1248 or the oils SILWET® L 722, L 7500, L 77 , L 71 1 of the company UNION CARBIDE and the alkyl (C ₁₂ ) -methicone copolyol marketed by the company Dow Corning under the name Q2 5200;

substituted or unsubstituted amine groups such as the products sold under the name GP 4 Silicone Fluid and GP 7100 by the company Genesee or the products sold under the names Q2 8220 and Dow Corning 929 or 939 by the company Dow Corning. The substituted amino groups are, in particular, C ₁ -C ₄ aminoalkyl groups;

alkoxylated groups, such as the product sold under the name "Silicone Copolymer F-755" by SWS Silicones and Abil Wax® 2428, 2434 and 2440 by the company GOLDSCHMIDT.

Preferably, the fatty substance is a liquid compound at a temperature of 25 ^° C. and at atmospheric pressure.

Preferably it is a fatty acid ester or Vaseline oil.

The composition comprising the aminosilicon compound (s) according to the invention has a fat content advantageously between 10 and 99% by weight, relative to the weight of the composition, preferably between 20 and 90% by weight, preferably between 25 and 80% better between 30 and 70% by weight.

According to a particular embodiment of the invention, the composition comprises one or more surfactants; these surfactants may be nonionic, anionic, cationic or amphoteric.

Preferably, the composition comprises one or more anionic surfactants, more especially chosen from salts (in particular alkali metal salts, in particular sodium salts, ammonium salts, amine salts, aminoalcohol salts or alkaline earth metal salts). as magnesium) of the following compounds: alkylsulfates, alkylethersulfates, alkylamidoethersulfates, alkylarylpolyethersulfates, monoglycerides sulfates;

alkylsulfonates, alkylamidesulfonates, alkylarylsulfonates, α-olefin-sulfonates, paraffin-sulfonates;

alkylphosphates, alkyl ether phosphates; alkylsulfosuccinates, alkylethersulfosuccinates, alkylamide-sulfosuccinates; alkylsulfosuccinamates;

alkylsulfoacetates;

acylsarcosinates; acylisethionates and N-acyltaurates;

salts of fatty acids such as oleic, ricinoleic, palmitic or stearic acids, coconut oil acid or hydrogenated coconut oil acid;

salts of alkyl D galactoside uronic acids;

acyl lactylates;

salts of polyoxyalkylenated alkyl ether carboxylic acids, polyoxyalkylenated alkylarylether carboxylic acids, polyoxyalkylenated alkylamidoether carboxylic acids, in particular those containing from 2 to 50 ethylene oxide groups;

- and their mixtures.

It should be noted that the alkyl or acyl radical of these various compounds advantageously comprises from 6 to 24 carbon atoms, and preferably from 8 to 24 carbon atoms, and the aryl radical preferably denotes a phenyl or benzyl group.

The surfactant or the surfactant mixture, when present, represents more particularly 0.01% and 60% by weight relative to the weight of the composition, preferably between 0.5% and 30% by weight and even more preferably between 1% and 20% by weight. The composition may further comprise an alkalinizing agent different from the aminosilicon compounds of formula (I)

Among the alkalinizing agents that may be mentioned, for example, alone or in mixtures, ammonia; the compounds of the following formula:

Rx _{χ / R} z

Ry ^N Rt wherein W is a propylene residue optionally substituted by a hydroxyl group or a C ₁ -C ₆ alkyl radical; Rx, Ry, Rz and Rt, which may be identical or different, represent a hydrogen atom, a C ₁ -C ₆ alkyl or C ₁ -C ₆ hydroxyalkyl radical. Preferably, the additional basifying agent, if present, is not ammonia. This agent can be used to adjust the pH of the composition applied to hair or at least its aqueous portion if it is present. This pH is preferably between 4 and 1 1 and even more preferably between 7 and 10.5. If ammonia is used as additional alkalizing agent, then preferably its content is less than or equal to 0.03% by weight of the final composition (expressed as NH ₃ ), more particularly less than or equal to 0, 01% by weight relative to the final composition. It is recalled that the final composition results from mixing the composition containing the compound (s) of formula (I) with the oxidizing composition; this mixture being produced either before application to the keratin fibers (extemporaneous preparation) or directly to the keratinous fibers (separate successive application, without intermediate rinsing, compositions on the keratinous fibers). Preferably, ammonia is not used as an additional alkalizing agent.

The composition comprising the aminosilicon compounds of formula (I) may also contain various adjuvants conventionally used in compositions for dyeing hair, such as anionic, cationic, nonionic, amphoteric or zwitterionic polymers, or mixtures thereof; mineral thickeners, and in particular fillers such as clays, talc; organic thickeners, in particular anionic, cationic, nonionic and amphoteric polymeric associative thickeners, antioxidant agents; penetrants; sequestering agents; perfumes ; dispersing agents for film-forming agents; ceramides; preservatives; opacifying agents.

The adjuvants above are generally present in an amount for each of them between 0.01 and 20% by weight relative to the weight of the composition. The composition according to the invention may result from the extemporaneous mixing of the aminosilicon compound (s) of the invention with the remainder of the composition containing less than 10% of water.

The dyeing process according to the invention is carried out by applying to the keratin fibers, dry or wet, the composition as defined above or by mixing it extemporaneously or on the hair with an aqueous composition.

According to the process according to the invention, the composition is brought into contact with a composition comprising one or more oxidizing agents (oxidizing composition).

More particularly, the oxidizing composition is aqueous and optionally comprises one or more organic solvents. Examples of organic solvents that may be mentioned include linear or branched C ₂ -C ₄ alkanols, such as ethanol and isopropanol; glycerol; glycols and ethers of glycols such as 2-butoxyethanol, propylene glycol, dipropylene glycol, propylene glycol monomethyl ether, diethylene glycol monoethyl ether and monomethyl ether, as well as aromatic alcohols such as benzyl alcohol or phenoxyethanol, and mixtures thereof. The solvent (s) may be present in proportions usually ranging from

1 to 40% by weight relative to the weight of the oxidizing composition, and preferably from 5 to 30% by weight.

More particularly, the oxidizing agent is chosen from hydrogen peroxide; urea peroxide; alkali metal bromates or ferricyanides; peroxygenated salts such as for example persulfates, perborates and percarbonates of alkali or alkaline earth metals, such as sodium, potassium, magnesium; or their mixtures.

This oxidizing agent is advantageously constituted by hydrogen peroxide and in particular by an aqueous solution whose titre may vary, more particularly, from 1 to 40 volumes, and even more preferably from 5 to 40 volumes.

The oxidizing composition may also comprise at least one basifying agent and / or at least one acidifying agent. Preferably the oxidizing composition contains at least one acidifying agent.

Among the acidifying agents, mention may be made, for example, of mineral or organic acids such as hydrochloric acid, orthophosphoric acid, sulfuric acid, carboxylic acids such as acetic acid, tartaric acid citric acid, lactic acid, sulphonic acids.

Usually, the pH of the oxidizing composition is less than 7. The oxidizing composition may be in the form of a solution, an emulsion or a gel.

The oxidizing composition may also contain other ingredients conventionally used in the field, such as, in particular, those previously detailed in the context of the composition comprising one or more aminosilicate compounds of formula (I).

According to a particular embodiment of the invention, the amount of oxidizing composition relative to that of the composition comprising the organosilicon compound (s) is such that the content of organosilicon compound of formula (I) is between 2 and 8% by weight in the final composition. It is recalled that the final composition defines the composition resulting from the mixing of the composition containing the compound (s) of formula (I) with the oxidizing composition; this mixture being produced either before application to the keratin fibers (extemporaneous preparation) or directly to the keratinous fibers (separate successive application, without intermediate rinsing, compositions on the keratinous fibers).

According to a first embodiment of the invention, the method is implemented by applying to the keratin fibers, dry or wet, a composition obtained by extemporaneous mixing, at the time of use, of the composition comprising one or several aminosilicon compounds of formula (I) (first composition) and the oxidizing composition (second composition).

According to a second embodiment of the invention, the method is implemented by applying the two compositions to the keratin fibers, dry or wet, successively and without intermediate rinsing.

In particular, the process is carried out by applying to keratinous fibers, dry or wet, successively and without intermediate rinsing, in particular with water, comprising one or more aminosilicon compounds of formula (I) (first composition) and then the composition oxidizing (second composition). According to another possibility, the process is carried out by applying to the keratin fibers, dry or wet, successively and without intermediate rinsing, in particular with water, the oxidizing composition (second composition) and then the composition comprising one or more aminosilicon compounds. of formula (I) (first composition). Whatever the variant of the process chosen, the mixture present on the fibers

(resulting either from extemporaneous mixing of the composition comprising one or more aminosilicon compounds of formula (I) and the oxidizing composition or resulting from the successive application of the two compositions) is left in place for a period, in general, of 1 minute to 1 hour, preferably 10 minutes to 30 minutes. The temperature during the process is conventionally between room temperature (between 15 and 25 ^° C.) and 80 ^° C., preferably between room temperature and 60 ^° C.

At the end of the treatment, the human keratinous fibers are optionally rinsed with water, washed with shampoo, rinsed again with water and then dried or left to dry.

Another subject of the invention consists of a composition with a water content of less than 10% by weight, comprising one or more aminosilicon compounds of formula (I) detailed previously associated with one or more fatty substances.

Preferably, the composition comprises a water content of less than or equal to 2% by weight, more preferably less than 1% by weight.

Preferably, the composition does not comprise bound water, such as the water of crystallization of salts or traces of water absorbed by the raw materials used in the production of the compositions according to the invention.

All that has been detailed above concerning the composition comprising the aminosilicon compound (s) of formula (I) remains applicable and will therefore not be included in this part of the description.

Finally, the invention relates to a multi-compartment device comprising in at least one of them a composition comprising one or more aminosilicon compounds of formula (I) as defined above, and in at least one other, a composition comprising a or several oxidizing agents also described previously. The following examples serve to illustrate the invention without being limiting in nature.

EXAMPLES

1. The following composition according to the invention is prepared (the amounts are expressed in g%):

( ^* ) (3-aminopropyl) ethyldiethoxysilane

2. The composition according to the state of the art is prepared. The quantities are expressed in%:

( ^* ) MA: quantity expressed in% of Active Matter. 3. Application

At the time of use, each composition is mixed weight for weight with an aqueous solution of hydrogen peroxide at 20 volumes at pH2.3.

The pH of the solutions is 10.1 ± 0.1.

Each mixture is then applied to a natural chestnut wick (pitch 5). The exposure time is 30 minutes at room temperature.

At the end of this time, the locks are rinsed and then washed with Elsève multivitamin® shampoo. 4. Results

The following first observations make it possible to distinguish the formulas of the invention from those of the state of the art:

The lightening of the locks is evaluated by colorimetric measurements using a Minolta CM2002 colorimeter and it is found that the lightening is equivalent (no significant difference).

The table below shows that both formulas lead to equivalent clarifications.

Claims

1. A process for staining and / or lightening human keratin fibers, wherein said fibers are brought into contact with:

A first composition with a water content of less than 10% by weight comprising one or more aminosilicon compounds of formula (I)

/ ^R <

H ₂ NR _r Si-R ₂

^Rs (D

Formula wherein: Ri is:

- -a linear alkoxy or branched -C ₂₀ preferably C ₄ - hydroxy radical -a

an OSi radical (R _a ) ₂ (Rb) R ₂ denotes:

- -a linear alkyl radical -C ₄ or branched, preferably methyl or ethyl -a alkoxy radical -C ₂₀ linear or branched, preferably C ₄ - hydroxy radical -a

an OSi radical (R _a ) ₂ (R _b ) Where:

R ₃ denotes a linear or branched C ₁ -C ₄ alkoxy radical, preferably ethoxy or methoxy, or a linear or branched C ₁ -C ₄ alkyl radical, preferably methyl or ethyl

R _b denotes a linear or branched C ₁ -C ₄ alkyl radical, preferably methyl or ethyl

R ₃ designates:

-a linear alkyl or branched -C _20, preferably C ₄ - alkenyl radical -a C ₂ -C ₂₀ linear or branched and preferably C ₂ -C ₄

a radical WSi (R _d ) ₂ (R _e ) with Where: - W denotes an oxygen atom or a linear alkylene radical containing from 1 to 10 carbon atoms - Rd denotes a linear or branched C ₁ -C ₄ alkyl radical, preferably methyl or ethyl, a linear or branched C ₁ -C ₄ alkoxy radical, preferably ethoxy or methoxy "R _e denotes a linear or branched C ₁ -C ₄ alkyl radical, preferably methyl or ethyl, a C ₂ -C ₁₀ linear alkenyl radical or branched, preferably C ₂ -C ₄ R ₄ is a divalent radical of structure:

- R ₅ denotes a linear or branched dC ₄ alkyl radical, preferably methyl or ethyl

R _{6, which may be} identical or different, denotes a linear or branched C ₁ -C ₄ alkyl radical optionally substituted with one or more hydroxyl groups, a radical

NH ₂ , a radical Zi ₂ NH ₂ in which Zi ₂ denotes a linear C ₁ -C ₂₀ and preferably C ₁ -C ₁₀ alkylene radical, still more particularly dC ₄ R ₈ denotes a linear or branched dC ₄ alkyl radical, preferably methyl or ethyl, alkenyl C ₂ -C ₀ linear or branched, preferably C ₂ -C _4, a Zi ₅ NH ₂ radical, a radical ₇ Zi If OSi _(R ') ₂ (Rb') with

• R _a 'denotes a linear or branched C ₁ -C ₄ alkoxy radical, preferably methoxy or ethoxy

• R _b 'denotes a linear or branched dC ₄ alkyl radical, preferably methyl or ethyl "Z ₁₅₁ Z ₁₇ denote independently of one another a linear alkylene radical C ₁ -

C ₂₀ , preferably C ₁ -C ₁₀ , still more particularly C ₁ -C ₄

Z ₅₁ Z ₈₁ Z ₆₁ Z ₇₁ Z ₁₀ denote, independently of each other, a linear C ₁ -C ₂₀ alkylene radical

Q denotes an unsaturated ring containing 6 identical or different Y-chains representing an oxygen atom or an NH group

- g is 0 or 1

h is 0, 1, 2

- j is 0, 1, 2

k is 0 or 1 - k1 is 0 or 1, preferably 1

m is 0 or 1

r is 0, 1, 2 or 3

- a represents the bond to the silicon atom

b represents the bond to the nitrogen atom of the amino group; A second composition comprising one or more oxidizing agents.

2. Method according to the preceding claim, characterized in that the aminosilicon compound corresponds to the following formula (IA):

R '

/

H ₂ N-R'-SHR ' ₂

(IA)

Formula in which R'i, FT ₂ identical or different, denote: an alkoxy radical -C ₂₀ linear or branched preferably -C ₄

a hydroxy radical

a radical OSi (R ' _a ) 2 (R' _b ) where

• R'a denotes a linear alkoxy Ci-C ₄ branched or, preferably methoxy or ethoxy

R ' _b denotes a linear or branched C ₁ -C ₄ alkyl radical, preferably methyl or ethyl

R ' ₃ denotes: a linear or branched C ₁ -C ₂₀ alkyl radical, preferably a C ₁ -C ₄ alkyl radical;

a linear or branched C ₂ -C ₂₀ alkenyl radical, preferably a C ₂ -C ₄

a radical W'Si (R ' _d ) ₂ (R' _e ) where:

- W denotes an oxygen atom or a linear alkylene radical containing from 1 to 10 carbon atoms

- R ' _d denotes a linear or branched C ₁ -C ₄ alkyl radical, preferably methyl or ethyl, a linear or branched C ₁ -C ₄ alkoxy radical, preferably methoxy or ethoxy

- R _e denotes a linear alkyl radical C _r -C ₄ or branched preferably methyl or ethyl, alkenyl C ₂ -C ₀ linear or branched, preferably C ₂ -C ₄

R ' ₄ is a divalent radical of structure:

- R ' ₅ denotes a linear or branched dC ₄ alkyl radical, preferably methyl or ethyl

- R ' ₆ identical or different denote a linear or branched dC ₄ alkyl radical, preferably methyl or ethyl, an NH ₂ radical, a radical Z ¹ _{I 2} NH ₂ where Z' ₁₂ denotes a linear C ₁ -C ₂₀ alkylene radical, preferably CrCi ₀ , even more preferably in CrC ₄

R ' ₈ denotes a linear or branched dC ₄ alkyl radical, preferably methyl or ethyl radical, a linear or branched C ₂ -C ₀ alkenyl radical, preferably a C ₂ -C ₄ radical, a radical Z ¹ I ₅ NH ₂ a radical Z _'17 If OSi _{(R') 2} (R'b) Where:

R'a identical or not, denote a linear or branched dC ₄ alkoxy radical, preferably methoxy or ethoxy

R'b denotes a linear or branched dC ₄ alkyl radical, preferably methyl or ethyl • Z ¹ _I5 , Z ' ₁ 7 denote independently of one another a linear alkylene radical of d-C ₂₀ , preferably of CrCi ₀ , still more particularly of CrC ₄

^• Z _'5 and Z' _8, Z'io denote, independently of one another a linear alkylene radical

• Q 'denoting an unsaturated ring with 6 chain members

Y 'identical or different representing an oxygen atom or an NH group

• g 'is 0 or 1

• h 'is 0, 1, 2

• k 'is 0 or 1

• m 'is 0 or 1

• r 'is 0, 1, 2 or 3

• a 'represents the bond to the silicon atom b' represents the bond to the nitrogen atom of the amino group.

3. Method according to claim 1, characterized in that the aminosilicon compound has the following formula (IB):

In which

R "i denotes a linear or branched C ₁ -C ₂₀ alkoxy radical preferably in dC ₄

R " ₂ and R" ₃ identical designating:

a linear or branched Ci-C ₂₀ alkyl radical, preferably dC ₄

an OSi radical (R " _d ) ₃ with R" _d denoting a linear or branched C ₁ -C ₄ alkyl radical, preferably methyl or ethyl,

R " ₄ is a divalent radical of structure:

Or :

R " ₆ denotes a linear or branched dC ₄ alkyl radical optionally substituted with one or more hydroxyl groups

Z " ₅ , Z" ₆ , Z " ₇ designating independently of one another a linear C ₁ -C ₂₀ alkylene radical

Q "designating an unsaturated ring having 6 chain members h" denoting 0 or 1 j "denoting 0 1 or 2 k" denoting 0 or 1 a "represents the bond to the silicon atom • b "represents the bond to the nitrogen atom of the amino group.

4. Method according to any one of the preceding claims, characterized in that the content of compound (s) of formula (I) represents from 0.1 to 50% by weight relative to the weight of the first composition.

5. Method according to any one of the preceding claims, characterized in that the first composition comprises one or more oxidation dye precursors chosen from oxidation bases and couplers, one or more direct dyes, or mixtures thereof.

6. Method according to any one of the preceding claims, characterized in that the first composition comprises one or more fatty substances.

7. Process according to the preceding claim, characterized in that the fatty substance is a compound chosen from a fatty alcohol, a fatty acid, a fatty acid ester, a fatty alcohol ester, a mineral oil, vegetable oil, animal oil or synthetic, silicone or wax.

8. Method according to any one of claims 6 or 7, characterized in that the fatty substance is a fatty acid ester or vaseline oil.

9. Method according to one of claims 6 to 8, characterized in that the fat content is between 10 and 99% by weight relative to the weight of the composition.

10. Method according to any one of the preceding claims, characterized in that the first composition has a water content of less than 2%, and preferably less than 1% by weight, relative to the weight of the composition.

1 1. Process according to any one of the preceding claims, characterized in that a composition obtained by extemporaneous mixing, at the time of use, of the first and second compositions is applied to the keratin fibers.

12. Method according to any one of claims 1 to 10, characterized in that the two compositions are applied to the keratin fibers, successively and without intermediate rinsing.

13. Composition with a water content of less than 10% by weight and comprising one or more aminosilicon compounds of following formula (I):

/ ^R <

H ₂ NR ₄ -SHR ₂

^Rs (D

Formula wherein: Ri is:

-a linear alkoxy or branched -C ₂₀ preferably C ₄ - hydroxy radical -a

an OSi radical (R _a ) ₂ (Rb) R ₂ denotes:

a linear or branched dC ₄ alkyl radical, preferably methyl or ethyl a linear or branched C ₁ -C ₂₀ alkoxy radical, preferably a dC ₄ -a hydroxyl radical;

an OSi radical (R _a ) ₂ (R _b ) Where:

• R ₃ denotes an alkoxy radical linear Ci-C ₄ branched or, preferably ethoxy or methoxy, or a linear alkyl group, _4-C or branched preferably methyl or ethyl

R _b denotes a linear or branched C ₁ -C ₄ alkyl radical, preferably methyl or ethyl

R ₃ designates:

a linear or branched C ₁ -C ₄ alkyl radical, preferably in dC ₄

a linear or branched C ₂ -C ₂₀ alkenyl radical, preferably a C ₂ -C ₄ radical, a radical WSi (R _d ) ₂ (R _e ) with

Or :

W denotes an oxygen atom or a linear alkylene radical containing from 1 to 10 carbon atoms

• R _d denotes a linear Ci-C ₄ alkyl radical or branched preferably methyl or ethyl, an alkoxy radical linear or branched dC _4, preferably ethoxy or methoxy

• R _e denotes an alkyl radical -C ₄ linear or branched preferably methyl or ethyl, alkenyl C ₂ -C ₀ linear or branched, preferably C ₂ -C ₄

R ₄ is a divalent radical of structure:

R ₅ denotes a linear or branched dC ₄ alkyl radical, preferably methyl or ethyl

R _{6, which may be} identical or different, denote a linear or branched dC ₄ alkyl radical optionally substituted by one or more hydroxyl groups, a radical

NH ₂ , a radical Zi ₂ NH ₂ in which Zi ₂ denotes a linear alkylene radical in

CrC ₂₀ , preferably CrCi _0, still more particularly dC ₄

R ₈ denotes a linear alkyl radical -C ₄ or branched preferably methyl or ethyl, a C ₂ -C ₀ alkenyl radical linear or branched, preferably C ₂ -C _4, a Zi ₅ NH ₂ radical, a radical Z ₇ If OSi (R _a ') ₂ (Rb') with

- R ₃ 'denotes a linear or branched dC ₄ alkoxy radical, preferably methoxy or ethoxy

R _b 'denotes a linear or branched C ₁ -C ₄ alkyl radical, preferably methyl or ethyl Z ₁₅₁ Z ₁₇ denote, independently of each other, a linear C ₁ -C ₂₀ , preferably C ₁ -C ₁₀ , even more particularly C ₁ -C ₄ alkylene radical;

- Z ₅₁ Z ₈₁ Z ₆₁ Z ₇₁ Z ₁₀ denote, independently of one another, a linear alkylene radical of C ₁ -C ₂₀ - Q denotes an unsaturated ring containing 6 chain members

Y identical or different represent an oxygen atom or an NH group

- g is 0 or 1

h is 0, 1, 2

- j is 0, 1, 2 - k is 0 or 1 k1 is 0 or 1, preferably 1

m is 0 or 1

r is 0, 1, 2 or 3 a represents the bond to the silicon atom; b represents the bond to the nitrogen atom of the amino group;

And one or more fatty substances.

14. Multi-compartment device comprising in at least one of them a composition as defined in one of claims 1 to 10, and in at least one other, a composition comprising one or more oxidizing agents.