Composition for lightening keratinous fibers and method for lightening keratinous fibers using said composition

Abstract

The present invention relates to a composition for lightening keratinous fibers, comprising at least one chemical oxidizing agent, at least one (bi)carbonate, at least one silicate and at least one amphoteric or zwitterionic compound, and to a method for lightening keratinous fibers using this composition.

Description

[Technical field]

[0001] The present invention relates to a composition for lightening keratinous fibers, comprising at least one chemical oxidizing agent, at least one (bi)carbonate, at least one silicate and at least one amphoteric or zwitterionic compound, and to a method for lightening keratinous fibers using this composition. [Background technology]

[0002] When one wishes to change the color of their hair, especially if they wish to achieve a color lighter than their original color, it is often necessary to first lighten or bleach the hair, for which purpose lightening or bleaching products are used.

[0003] Hair lightening is evaluated in terms of "tone gradations" that characterize the degree or level of lightening. The concept of "tone" is based on a gradation of natural shades, where one shade distinguishes each shade from the one before and after it. This definition and gradation of natural shades is known to hairdressing experts and has been published in a book (Non-Patent Document 1).

[0004] The shades are divided into a scale ranging from 1 (black) to 10 (very light blonde), with each scale corresponding to one shade and the higher the number, the lighter the shade.

[0005] It is a known technique to use lightening or bleaching compositions containing at least one chemical oxidizing agent to lighten or bleach hair, which is mostly carried out under alkaline pH conditions. The role of this oxidizing agent is to decompose the melanin of the hair, resulting in a more or less lightening of the fiber, depending on the nature of the oxidizing agent present and the pH conditions. Therefore, when carrying out a relatively gentle lightening, it is common to use hydrogen peroxide as an oxidizing agent. If a stronger lightening is desired, especially when the treated hair is dark, persulfate is usually used in the presence of hydrogen peroxide. However, lightening with the action of such a combination is not always satisfactory, since the hair takes on a rather unattractive orange-yellow hue that is very different from the natural shade, which complicates subsequent coloring because the shades obtained are limited to warm shades. Moreover, persulfate-based lightening compositions can deteriorate the quality of the fiber. In addition, the oxidative and / or direct dyes present to allow bleaching and dyeing of hair fibers in one step are generally not chemically compatible with persulfate-based compositions. Therefore, when it is desired to simultaneously bleach and dye keratin fibers, a two-step process is used in which a first step is performed to bleach the keratin fibers using a dye composition comprising one or more direct dyes and / or one or more oxidative dyes, followed by a second step of dyeing the keratin fibers. [Prior art documents] [Non-patent literature]

[0006] [Non-Patent Document 1] Sciences des traitements capillaires[The Science of Hair Care] by Charles Zviak,1988, published by Masson,pp.215 and 278 Summary of the Invention [Problem to be solved by the invention]

[0007] Therefore, there is a real need to develop a composition that can effectively lighten keratin fibers, especially dark keratin fibers, and obtain a less yellow and more natural result. Such a composition would also need to take better care of the fiber quality, especially to minimize fiber degradation. Finally, such a composition would also need to show compatibility with existing direct and / or oxidative dyes, so that in addition to providing good color buildup and deep chromatic colors, it would also be possible to achieve a wider range of colors.

[0008] Surprisingly, the Applicant has found that by using the composition according to the invention, all or part of these objectives are achieved. [Means for solving the problem]

[0009] According to a first aspect, the subject of the present invention is a method for producing a method for a method for manufacturing a semiconductor device comprising: i) one or more chemical oxidants selected from hydrogen peroxide, hydrogen peroxide generating systems other than peroxygenated salts, and mixtures thereof; ii) one or more compounds selected from carbonates, carbonate generating systems, bicarbonates, bicarbonate generating systems and mixtures thereof, preferably from carbonates, bicarbonates and mixtures thereof; iii) one or more silicates; iv) one or more amphoteric or zwitterionic compounds selected from: phospholipids such as lecithin, amino acids, amphoteric or zwitterionic surfactants, salts thereof, optical isomers thereof, geometric isomers thereof, tautomers thereof, solvates thereof and mixtures thereof; A composition comprising: The composition comprises persulfates in a total content of less than 10% by weight relative to the total weight of the composition.

[0010] According to a second aspect, the subject of the invention is a method for lightening keratinous fibres, comprising applying to the keratinous fibres a composition as defined above.

[0011] According to a third aspect, the subject of the invention is a method for simultaneously bleaching and dyeing keratinous fibers, comprising applying a composition comprising components i) to iv) as defined above, and v) one or more colorants chosen from direct dyes, oxidative dyes and mixtures thereof.

[0012] According to a fourth aspect, the subject of the invention is the use of a composition comprising components i) to iv) as defined above for lightening keratinous fibres, preferably for lightening them whilst at the same time reducing their yellowness.

[0013] According to a fifth aspect, the subject of the invention is the use of a composition comprising components i) to iv) as defined above and v) one or more colorants chosen from direct dyes, oxidative dyes and mixtures thereof, for simultaneously bleaching and dyeing keratinous fibers.

[0014] According to a sixth aspect, the subject of the present invention is a device (kit) comprising several separated compartments, comprising: A first section having: - one or more chemical oxidizing agents selected from hydrogen peroxide, hydrogen peroxide generating systems other than persalts and mixtures thereof, preferably hydrogen peroxide; - optionally one or more amphoteric or zwitterionic compounds; A first compartment containing a composition (A) comprising: A second section comprising: - one or more compounds selected from the carbonates, carbonate-generating systems, bicarbonates, bicarbonate-generating systems and mixtures thereof as defined above, preferably selected from the carbonates, bicarbonates and mixtures thereof as defined above; - one or more silicates; - optionally one or more colorants selected from direct dyes, oxidative dyes and mixtures thereof; - optionally one or more amphoteric or zwitterionic compounds; A second compartment containing a composition (B) comprising: A third section: - one or more colorants chosen from direct dyes, oxidation dyes and mixtures thereof; - optionally one or more amphoteric or zwitterionic compounds; A third compartment containing a composition (C) comprising: Equipped with however: - at least one of compositions (A) and (B), preferably composition (B), comprises one or more amphoteric or zwitterionic compounds; or - when composition (C) is present, it is understood that at least one of compositions (A), (B) and (C), preferably at least one of compositions (B) and (C), comprises one or more amphoteric or zwitterionic compounds. [Brief description of the drawings]

[0015] [Figure 1] 1 is a graph showing the variation of lightness L* as a function of the parameter b* for a composition according to the invention (Example 2) and a comparative composition based on persulfate (Example 1), the L* and b* values ​​being measurements in the CIE L*a*b* system. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] With respect to the subject matter of the present invention, unless otherwise specified, it is as follows: The term "keratinous fibres" means fibres of human or animal origin, such as head hair, body hair, eyelashes, eyebrows, wool, Angora goat hair, cashmere or fur. According to the invention, the keratinous fibres are preferably human keratinous fibres, more preferentially hair. The term "amino acid" means an organic compound containing at least one carboxyl (-COOH) or carboxylate (-COO-) group and at least one primary, secondary or tertiary amino group or a quaternary ammonium group. The term "salts" denotes addition salts with inorganic or organic acids or bases. Addition salts with acids are chosen from addition salts with hydrochloric acid, hydrobromic acid, sulphuric acid, citric acid, succinic acid, tartaric acid, lactic acid, tosylic acid, benzenesulphonic acid, phosphoric acid or acetic acid, etc. Addition salts with bases are chosen in particular from addition salts with bases such as basifying agents as defined hereinafter, in particular alkali metal hydroxides, alkaline earth metal hydroxides, aqueous ammonia, amines or alkanolamines. The term "alkyl group" means a linear or branched saturated hydrocarbon group containing 1 to 30 carbon atoms, preferentially 1 to 26 carbon atoms, more preferentially 1 to 22 carbon atoms, such as methyl, ethyl, n-propyl, isopropyl, butyl, n-pentyl, n-hexyl, n-decyl, n-dodecyl, tetradecyl, hexadecyl or eicosyl. · "(C x ~C y The term "alkyl group" refers to an alkyl group containing x to y carbon atoms. The term "alkenyl group" means a straight-chain or branched hydrocarbon group containing one or more conjugated or non-conjugated ethylenic unsaturations and containing from 1 to 30 carbon atoms, preferably from 1 to 26 carbon atoms and more preferentially from 1 to 22 carbon atoms, such as, for example, ethylenyl, n-propylenyl, isopropylenyl, butylenyl, n-pentylenyl, n-hexylenyl, n-decylenyl, n-dodecylenyl, tetradecylenyl, hexadecylenyl or eicosylenyl. · "(C x ~C y The term "(x)alkenyl group" means an alkenyl group containing x to y carbon atoms. The term "(poly)(hydroxy)alkyl group" means an alkyl group or a hydroxyalkyl group or a polyhydroxyalkyl group. · The term "hydroxyalkyl group" means an alkyl group substituted with a hydroxyl group (-OH). The term "polyhydroxyalkyl group" means an alkyl group substituted with at least two hydroxyl groups (-OH). The term "(hetero)cyclic group" means a cyclic or heterocyclic group. The term "cyclic group" means a mono- or polycyclic, fused or non-fused, saturated or unsaturated, especially aromatic, carbocyclic ring containing 6 to 22 carbon atoms, said cyclic group being capable of containing one or more identical or different groups, especially: 1 ~C 6 ) alkyl, (C 1 ~C 6 ) alkoxy, (C 1 ~C 6 ) may be substituted with a group selected from hydroxyalkyl, hydroxyl (-OH) or carboxyl (-COOH). The term "heterocyclic group" means a mono- or polycyclic, fused or non-fused, saturated or unsaturated, especially aromatic, group containing 5 to 22 ring members and containing 1 to 3 heteroatoms selected from nitrogen, oxygen and sulfur atoms, said heterocyclic group being capable of containing one or more identical or different groups, especially: 1 ~C 6 ) alkyl, (C 1 ~C 6 ) alkoxy, (C 1 ~C 6 ) may be substituted with a group selected from hydroxyalkyl, hydroxyl (-OH) or carboxyl (-COOH). · The term "silicate" means a salt of silicate. The term "colorant" means an oxidative dye, a direct dye or a pigment. The term "oxidation dye" refers to an oxidation dye precursor selected from oxidation bases and couplers, which are colorless or low-color compounds that give colored species through a condensation reaction in the presence of an oxidizing agent. The term "direct dyes" means natural and / or synthetic dyes, including those in the form of extracts, other than oxidation dyes. These are colored compounds that end up on the surface of the fiber. They may be ionic or non-ionic, i.e. anionic, cationic, neutral or non-ionic. · The term "chemical oxidant" means an oxidant other than atmospheric oxygen.

[0017] Unless otherwise specified, when a compound is referred to in this application, this also includes its optical isomers, its geometric isomers, its tautomers, its salts or solvates such as hydrates thereof and mixtures thereof.

[0018] The terms "at least one" and "one or more" are synonymous and may be used interchangeably.

[0019] The terms "lightening" and "bleaching" are synonymous and can be used interchangeably.

[0020] composition According to a first aspect, a subject of the invention is a composition comprising components i) to iv) as defined above.

[0021] Surprisingly, the Applicant has found that the composition according to the invention makes it possible to effectively lighten keratin fibres with a less yellowish and more natural result. When the colour of keratin fibres treated with the composition according to the invention is compared with the colour of keratin fibres treated with lightening compositions known from the prior art, the CIE L * a * b * b measured by the composition according to the present invention * The value is the lightness L * b according to the lightening compositions known from the prior art, * It is observed that the value is lower than that.

[0022] Furthermore, the composition according to the invention takes better care of the fiber quality, in particular fiber degradation is minimized.

[0023] According to one preferred embodiment, the composition according to the invention comprises: i) hydrogen peroxide; ii) one or more compounds selected from carbonates, bicarbonates, and mixtures thereof; iii) one or more silicates; iv) one or more amphoteric or zwitterionic compounds selected from: phospholipids such as lecithin, amino acids, amphoteric or zwitterionic surfactants, salts thereof, optical isomers thereof, geometric isomers thereof, tautomers thereof, solvates thereof and mixtures thereof; A composition comprising: However, it is understood that this composition comprises persulfates in a total content of less than 10% by weight relative to the total weight of the composition.

[0024] Chemical Oxidants The compositions according to the present invention comprise i) one or more chemical oxidizing agents selected from hydrogen peroxide, hydrogen peroxide generating systems other than persalts, and mixtures thereof.

[0025] Hydrogen peroxide generating systems other than persalts can be selected from urea peroxide, polymer complexes capable of releasing hydrogen peroxide, oxidase enzymes and mixtures thereof.

[0026] An example of a polymer complex capable of releasing hydrogen peroxide is polyvinylpyrrolidone / H2O2, especially in powder form. 2 O 2 and other polymer conjugates described in U.S. Patent Nos. 5,008,093, 3,376,110 and 5,183,901.

[0027] Oxidases are capable of generating hydrogen peroxide in the presence of a suitable substrate, for example glucose in the case of glucose oxidase, or uric acid in the case of uricase.

[0028] According to a particular embodiment, a hydrogen peroxide generating system other than hydrogen peroxide and / or persalts may be added to the composition according to the invention immediately before applying the composition according to the invention to the keratinous fibers. The intermediate composition comprising hydrogen peroxide and / or a hydrogen peroxide generating system other than persalts may be referred to as an oxidizing composition and may also contain various additional compounds or various adjuvants conventionally used in compositions for lightening keratinous fibers.

[0029] According to a preferred embodiment, the composition according to the invention comprises hydrogen peroxide as the chemical oxidizing agent.

[0030] The chemical oxidizing agents are preferably present in the composition in a total content ranging from 1% to 12% by weight, more preferentially from 3% to 9% by weight and even more preferentially from 3.5% to 8.5% by weight relative to the total weight of the composition.

[0031] According to a preferred embodiment, hydrogen peroxide is present in the composition in a total content ranging from 1% to 12% by weight, preferably ranging from 3% to 9% by weight and more preferentially in the range from 3.5% to 8.5% by weight relative to the total weight of the composition.

[0032] (Bi)carbonates and / or (bi)carbonate generating systems The composition according to the invention additionally comprises ii) one or more compounds selected from carbonates, carbonate generating systems, bicarbonates, bicarbonate generating systems and mixtures thereof.

[0033] According to a preferred embodiment, the composition according to the invention additionally comprises ii) one or more compounds selected from carbonates, bicarbonates and mixtures thereof.

[0034] According to a more preferred embodiment, the composition according to the invention additionally comprises ii) one or more compounds selected from ammonium carbonate, ammonium bicarbonate and mixtures thereof.

[0035] The compounds ii) are present in the composition in a total content preferably in the range from 0.01% to 20% by weight, preferably in the range from 1% to 15% by weight, more preferentially in the range from 2% to 15% by weight and even more preferentially in the range from 4% to 15% by weight, relative to the total weight of the composition.

[0036] Carbonates and / or carbonate generating systems The term "carbonate generating system" means a system that produces carbonate in situ, for example, carbon dioxide in water or percarbonate in water.

[0037] Preferably, the carbonate is: - alkali metal carbonates; - alkaline earth metal carbonates; - lanthanide carbonates; - transition metal carbonates; - Bismuth carbonate; - cadmium carbonate; - Thallium carbonate; - Zinc carbonate; - Formula(N + R 1 R 2 R 3 R 4 ) 2 ,CO 3 2- (In the formula, R 1 , R 2 , R 3 and R 4 represent, independently of each other, a hydrogen atom or an optionally substituted hydroxyl group (C 1 ~C 4 ) a compound of formula (I) which represents an alkyl group; - Guanidine carbonate; - mixtures of these; is selected from.

[0038] More preferentially, the carbonate is selected from sodium carbonate, potassium carbonate, cesium carbonate, lithium carbonate, magnesium carbonate, calcium carbonate, barium carbonate, strontium carbonate, cerium carbonate, lanthanum carbonate, yttrium carbonate, copper(II) carbonate, manganese carbonate, nickel carbonate, silver carbonate, zirconium carbonate, bismuth carbonate, cadmium carbonate, thallium carbonate, zinc carbonate, ammonium carbonate, guanidine carbonate, tetraethylammonium carbonate and mixtures thereof.

[0039] More preferentially, the carbonate is chosen from sodium carbonate, potassium carbonate, caesium carbonate, magnesium carbonate, calcium carbonate, cerium carbonate, manganese carbonate, zinc carbonate, ammonium carbonate, guanidine carbonate and mixtures thereof.

[0040] Most preferentially, the carbonate is chosen from sodium carbonate, potassium carbonate, magnesium carbonate, calcium carbonate, ammonium carbonate and mixtures thereof.

[0041] According to a particularly preferred embodiment, the carbonate contained in the composition is ammonium carbonate.

[0042] The carbonate and / or carbonate-generating system is present in the composition in a total content preferably in the range from 0.01% to 20% by weight, more preferentially in the range from 1% to 20% by weight and even more preferentially in the range from 1% to 10% by weight, relative to the total weight of the composition.

[0043] According to a preferred embodiment, the carbonates are present in the composition in a total content ranging from 0.01% to 20% by weight, preferably in the range from 1% to 20% by weight and more preferentially in the range from 1% to 10% by weight relative to the total weight of the composition.

[0044] According to a preferred embodiment, compound ii) is selected from carbonates, carbonate-generating systems and mixtures thereof, preferably carbonates.

[0045] Bicarbonates and / or bicarbonate generating systems The term "bicarbonate generating system" refers to a system that produces bicarbonate in situ, for example, by buffering carbon dioxide in water or carbonate with a mineral or organic acid.

[0046] Preferably, the bicarbonate is: - alkali metal bicarbonates; - alkaline earth metal bicarbonates; - Formula N + R 1 R 2 R 3 R 4 ,HCO 3 - (In the formula, R 1 , R 2 , R 3 and R 4 represent, independently of each other, a hydrogen atom or an optionally substituted hydroxyl group (C 1 ~C 4 ) a compound of formula (I) which represents an alkyl group; - Aminoguanidine bicarbonate; - mixtures of these; is selected from.

[0047] More preferentially, the bicarbonate is selected from sodium bicarbonate, potassium bicarbonate, lithium bicarbonate, cesium bicarbonate, calcium bicarbonate, magnesium bicarbonate, ammonium bicarbonate, choline bicarbonate, triethylammonium bicarbonate, aminoguanidine bicarbonate and mixtures thereof.

[0048] More preferentially, the bicarbonate is chosen from sodium bicarbonate, potassium bicarbonate, caesium bicarbonate, calcium bicarbonate, magnesium bicarbonate, ammonium bicarbonate and mixtures thereof.

[0049] Most preferentially, the bicarbonate is chosen from sodium hydrogen carbonate, potassium hydrogen carbonate, ammonium hydrogen carbonate and mixtures thereof.

[0050] According to one particularly preferred embodiment, the bicarbonate contained in the composition is ammonium hydrogen carbonate.

[0051] The bicarbonate may be derived from natural waters, such as spring water from the Vichy basin or La Roche Posay, or Badoit water.

[0052] The bicarbonate and / or bicarbonate-generating system are present in the composition in a total content preferably in the range from 0.01% to 20% by weight, more preferentially in the range from 1% to 15% by weight, even more preferentially in the range from 2% to 15% by weight and most preferentially in the range from 4% to 15% by weight, relative to the total weight of the composition.

[0053] According to a preferred embodiment, the bicarbonates are present in a total content ranging from 0.01% to 20% by weight, preferably from 1% to 15% by weight, more preferentially from 2% to 15% by weight and better still from 4% to 15% by weight relative to the total weight of the composition.

[0054] According to a preferred embodiment, compound ii) is selected from bicarbonates, bicarbonate generating systems and mixtures thereof, preferably from bicarbonates.

[0055] Silicate The composition according to the invention also comprises iii) one or more silicates.

[0056] The silicate is preferably water soluble.

[0057] The term "water-soluble silicate" means a silicate having a solubility in water of more than 0.5% by weight, preferably more than 1% by weight, at normal room temperature (25° C.) and atmospheric pressure (760 mmHg).

[0058] Preferably, the silicate is selected from alkali metal silicates, alkaline earth metal silicates, aluminum silicate, trimethylammonium silicate and mixtures thereof.

[0059] More preferentially, the silicate is chosen from sodium silicate, potassium silicate, calcium silicate, aluminium silicate, trimethylammonium silicate and mixtures thereof.

[0060] More preferentially, the silicates are chosen from sodium silicates.

[0061] Preferably, the silicate is chosen from the compounds with the INCI names Sodium Silicate (CAS: [1344-09-8]) and / or Sodium Metasilicate (CAS: [6834-92-0]).

[0062] The silicates are preferably present in the composition in a total content ranging from 1% to 40% by weight, more preferentially from 2% to 35% by weight, even more preferentially from 3% to 35% by weight and most preferentially from 4% to 20% by weight relative to the total weight of the composition.

[0063] The mass ratio of the total amount of carbonates and / or carbonate generating systems to the total amount of silicates is preferably 0.00025 to 20, more preferentially 0.028 to 10, and even more preferentially 0.028 to 3.4.

[0064] According to a preferred embodiment, the mass ratio total amount of carbonates / total amount of silicates is between 0.00025 and 20, preferably between 0.028 and 10, more preferentially between 0.028 and 3.4.

[0065] The mass ratio of the total amount of carbonates and / or carbonate generating systems to the total amount of chemical oxidants is preferably 0.0008 to 20, more preferentially 0.1 to 6.6, even more preferentially 0.1 to 2.9.

[0066] According to a preferred embodiment, the mass ratio total amount of carbonates / total amount of chemical oxidizing agents is between 0.0008 and 20, preferably between 0.1 and 6.6 and more preferentially between 0.1 and 2.9.

[0067] According to a preferred embodiment, the mass ratio total amount of carbonate / total amount of hydrogen peroxide is between 0.0008 and 20, preferably between 0.1 and 6.6, more preferentially between 0.1 and 2.9.

[0068] The mass ratio of the total amount of bicarbonates and / or bicarbonate generating systems to the total amount of silicates is preferably 0.00025-20, more preferentially 0.02-7.5, and even more preferentially 0.05-5.

[0069] According to a preferred embodiment, the mass ratio of the total amount of bicarbonates / the total amount of silicates is between 0.00025 and 20, preferably between 0.02 and 7.5, and more preferentially between 0.05 and 5.

[0070] The mass ratio of the total amount of bicarbonate and / or bicarbonate generating system / the total amount of chemical oxidizing agents is preferably 0.0008 to 20, more preferentially 0.11 to 5, even more preferentially 0.2 to 4.2.

[0071] According to a preferred embodiment, the mass ratio total amount of bicarbonate / total amount of chemical oxidizing agents is between 0.0008 and 20, preferably between 0.11 and 5, and more preferentially between 0.2 and 4.2.

[0072] According to a more preferred embodiment, the mass ratio of the total amount of bicarbonate / the total amount of hydrogen peroxide is between 0.0008 and 20, preferably between 0.11 and 5, and more preferentially between 0.2 and 4.2.

[0073] The mass ratio of the total amount of carbonates and / or carbonate generating systems to the total amount of bicarbonates and / or bicarbonate generating systems is preferably 0.0005-2000, more preferentially 0.06-20, and even more preferentially 0.06-5.

[0074] According to a preferred embodiment, the mass ratio of the total amount of carbonates / the total amount of bicarbonates is between 0.0005 and 2000, preferably between 0.06 and 20, more preferentially between 0.06 and 5.

[0075] Amphoteric or zwitterionic compounds The compositions according to the invention additionally comprise iv) one or more amphoteric or zwitterionic compounds selected from: phospholipids such as lecithin, amino acids, amphoteric or zwitterionic surfactants, salts thereof, optical isomers thereof, geometric isomers thereof, tautomers thereof, solvates thereof and mixtures thereof.

[0076] Phospholipids The phospholipids may be of vegetable or animal origin and may be in pure form or in mixtures.

[0077] The phospholipid is preferably a plant-derived phospholipid.

[0078] The phospholipids are preferably selected from lecithins.

[0079] The lecithin that can be used according to the invention can be hydrogenated or non-hydrogenated.

[0080] Non-hydrogenated lecithin is generally obtained by extracting lipids from vegetable or animal fatty substances using non-polar solvents. This lipid fraction usually contains mainly glycerophospholipids such as phosphatidylcholine.

[0081] The animal or vegetable sources that can be used to extract non-hydrogenated lecithins are, for example, soybeans, sunflowers or eggs. The glycerophospholipids contained in high proportions in these lecithins are mainly phosphatidylcholine and phosphatidylethanolamine.

[0082] The lecithin is preferably a vegetable-derived lecithin.

[0083] Non-hydrogenated lecithins suitable for the practice of the present invention can be lecithins obtained from soybean, sunflower or egg and / or mixtures thereof.

[0084] Lecithin is usually provided in dissolved form in fatty acids, triglycerides or other solvents, or in powder or cake form.

[0085] These are usually mixtures of lecithins, and the glycerophospholipid content in commercially available products generally ranges from at least 15% to at least about 95%.

[0086] Among the non-hydrogenated lecithins that may be suitable for implementing the cosmetic composition according to the invention, mention may be made of the lecithins sold under the references Nattermann Phospholipid®, Phospholipon 80® and Phosale 75® by the American Lecithin Company, Epikuron 145V, Topcithin 300, Emulmetik 930, Ovothin 200 and Organic Lecithin by the Lucas Meyer company, Lipoid S 20 by the Lipoid Kosmetik company and Alcolec F 100 by the American Lecithin Company.

[0087] The phospholipids may also be selected from hydrogenated lecithins.

[0088] Hydrogenated lecithin is obtained by controlled hydrogenation of the non-hydrogenated lecithin described above.

[0089] As an example of hydrogenated lecithin that can be used in the composition according to the invention, mention may be made, for example, of that sold under the reference Nikkol Lecithinol S 10 by Nikko Chemicals Co., Ltd.

[0090] amino acid The amino acids may be selected from acidic amino acids, basic amino acids, polar neutral amino acids, non-polar neutral amino acids, and mixtures thereof.

[0091] The term "acidic amino acid" refers to an amino acid that contains more acidic than basic functional groups, particularly a proteinogenic amino acid whose side chain contains an acidic group. Examples of acidic amino acids include aspartic acid, glutamic acid, and mixtures thereof.

[0092] The term "basic amino acid" refers to an amino acid that contains more basic than acidic functional groups, particularly a proteinogenic amino acid whose side chain contains a basic group. Examples of basic amino acids include arginine, histidine, lysine, and mixtures thereof.

[0093] The term "polar neutral amino acid" refers to an amino acid that is uncharged at pH=7 and has no thiol, alcohol or phenol group or a basic amide (CONH 2 By polar neutral amino acids is meant amino acids that contain a chemical functional group that has polarity, such as a cyclic aryl group. Examples of polar neutral amino acids include serine, threonine, cysteine, asparagine, glutamine, tyrosine, and mixtures thereof.

[0094] The term "non-polar neutral amino acid" refers to an amino acid that is uncharged and non-polar at pH=7. Examples of non-polar neutral amino acids include amino acids selected from glycine, alanine, valine, leucine, isoleucine, methionine, phenylalanine, tryptophan, proline, and mixtures thereof.

[0095] Amphoteric or zwitterionic surfactants The amphoteric or zwitterionic surfactants may be derivatives of secondary or tertiary, optionally quaternized, aliphatic amines, in which the aliphatic group is linear or branched and contains from 8 to 22 carbon atoms, said amine derivatives containing at least one anionic group, such as a carboxylate, sulfonate, sulfate, phosphate or phosphonate group.

[0096] In particular, (C 8 ~C 20 ) alkyl betaine, (C 8 ~C 20 ) alkyl sulfobetaine, (C 8 ~C 20 ) Alkylamide (C 3 ~C 8 ) alkyl betaine, (C 8 ~C 20 ) Alkylamide (C 6 ~C 8 ) alkyl sulfobetaine and (C 8 ~C 20 ) Alkylamide (C 3 ~C 8 ) Alkylhydroxysultaine.

[0097] Among the derivatives of the secondary or tertiary, optionally quaternized, aliphatic amines defined above that can be used, mention may also be made of the compounds of formulae (3) and (4) below, respectively: R a -CONHCH 2 CH 2 -N + (R b )(R c )-CH 2 COO - ,M + ,X - (3) (In the formula: - R a is preferably an acid R present in the hydrolyzed palm kernel oil. a C derived from COOH 10 ~C 30represents an alkyl or alkenyl group, or represents a heptyl group, a nonyl group, or an undecyl group; - R b represents a β-hydroxyethyl group; - R c represents a carboxymethyl group; - M + represents a cationic counterion derived from an alkali metal or alkaline earth metal, e.g., sodium, an ammonium ion, or an ion derived from an organic amine; -X - are halides, acetate, phosphate, nitrate, (C 1 ~C 4 ) alkyl sulfate, (C 1 ~C 4 ) alkyl- or (C 1 ~C 4 ) represents an organic or inorganic anionic counterion such as those selected from alkylarylsulfonic acids, in particular methylsulfate and ethylsulfate; or M + and X - does not exist); R a’ -CONHCH 2 CH 2 -N(B)(B') (4) (In the formula: - B is -CH 2 -CH 2 represents an -OX' group; - B' is -(CH 2 ) z represents a Y′ group, where z=1 or 2; - X' is -CH 2 COOH group, -CH 2 -COOZ' group, -CH 2 CH 2 COOH group or CH 2 CH 2 -COOZ' group or a hydrogen atom; - Y' is a -COOH group, a -COOZ' group, a -CH 2 -CH(OH)SO 3 H group or -CH 2 CH(OH)SO 3 represents a -Z' group; - Z' represents a cationic counterion derived from an alkali metal or alkaline earth metal, such as sodium, an ammonium ion or an ion derived from an organic amine; - R a’ is preferably an acid R present in palm kernel oil or hydrolyzed linseed oil. a’ C derived from -COOH 10 ~C 30 Alkyl or alkenyl groups, alkyl groups, especially C 17 Alkyl groups and their isoforms, unsaturated C 17 (representing the group).

[0098] These compounds are classified in the CTFA Dictionary, 5th Edition, 1993 under the names disodium cocoamphodiacetate, disodium lauroamphodiacetate, disodium caprylamphodiacetate, disodium capryloamphodiacetate, disodium cocoamphodipropionate, disodium lauroamphodipropionate, disodium caprylamphodipropionate, disodium capryloamphodipropionate, lauroamphodipropionic acid and cocoamphodipropionic acid.

[0099] One example is cocoamphodiacetate, sold by Rhodia under the trade name Miranol® C2M Concentrate.

[0100] Formula (5): Ra” -NHCH(Y")-(CH 2 ) n CONH(CH 2 ) n’ -N(R d )(R e ) (5) (In the formula: - Y" is a -COOH group, a -COOZ" group, a -CH 2 -CH(OH)SO 3 H group or -CH 2 CH(OH)SO 3 -Z" represents a group; - R d and R e are, independently of each other, C 1 ~C 4 represents an alkyl or hydroxyalkyl group; - Z" represents a cationic counterion derived from an alkali metal or alkaline earth metal, e.g., sodium, an ammonium ion, or an ion derived from an organic amine; - R a” is preferably an acid R present in palm kernel oil or hydrolyzed linseed oil. a” -COOHC 10 ~C 30 represents an alkyl or alkenyl group; - n and n' each independently represent an integer ranging from 1 to 3) can also be used.

[0101] Among the compounds of formula (5), mention may be made of the compound classified under the name sodium diethylaminopropyl cocoaspartamide in the CTFA dictionary and sold by the company Chimex under the name Chimexane HB.

[0102] These compounds can be used alone or in mixtures.

[0103] Preferably, the amphoteric or zwitterionic surfactant, either alone or in admixture, is selected from the group consisting of (C 8 ~C 20) alkyl betaine, (C 8 ~C 20 ) alkyl sulfobetaine, (C 8 ~C 20 ) Alkylamide (C 3 ~C 8 ) alkyl betaine, (C 8 ~C 20 ) Alkylamide (C 6 ~C 8 ) alkyl sulfobetaine and (C 8 ~C 20 ) Alkylamide (C 3 ~C 8 ) alkylhydroxysultaines and compounds of formula (3), (4) and (5) as defined above.

[0104] More preferentially, the amphoteric or zwitterionic surfactants, alone or in mixtures, are (C 8 ~C 20 ) alkyl betaine, cocamidopropyl betaine, etc. 8 ~C 20 ) Alkylamide (C 3 ~C 8 ) alkyl betaine and cocamidopropyl hydroxysultaine, etc. 8 ~C 20 ) Alkylamide (C 3 ~C 8 ) alkyl hydroxysultaines.

[0105] More preferentially, the amphoteric or zwitterionic surfactant is a (C 8 ~C 20 ) Alkylamide (C 3 ~C 8 ) alkyl betaine and cocamidopropyl hydroxysultaine, etc. 8 ~C 20 ) Alkylamide (C 3 ~C 8 ) alkyl hydroxysultaines.

[0106] Preferably, the amphoteric or zwitterionic compound is selected from the following compounds 1 to 28, their salts, their optical isomers, their geometric isomers, their tautomers, their solvates and mixtures thereof: [ka] [ka] [ka] [ka]

[0107] More preferentially, the amphoteric or zwitterionic compound is selected from compounds 2, 10, 12, 15, 17, 18, 24, 27 and 28, their salts, their optical isomers, their geometric isomers, their tautomers, their solvates and mixtures thereof.

[0108] More preferentially, the amphoteric or zwitterionic compound is selected from compounds 2, 10, 12, 15, 17, 18, 24 and 27, their salts, their optical isomers, their geometric isomers, their tautomers, their solvates and their mixtures.

[0109] These amphoteric or zwitterionic compounds are preferably present in the composition in a content ranging from 0.01% to 50% by weight, more preferentially from 1% to 30% by weight, and even more preferentially from 2% to 15% by weight, relative to the total weight of the composition.

[0110] The composition comprises magnesium carbonate in a total content preferably less than 5% by weight, more preferentially less than 1% by weight, even more preferentially less than 0.1% by weight, most preferentially less than 0.01% by weight and better still less than 0.001% by weight.

[0111] According to a particularly preferred embodiment, the composition does not contain magnesium carbonate.

[0112] The composition comprises persulfates in a total content of less than 10% by weight, preferably less than 5% by weight, more preferentially less than 1% by weight, even more preferentially less than 0.1% by weight, most preferentially less than 0.01% by weight and better still less than 0.001% by weight.

[0113] According to a particularly preferred embodiment, the composition is persulfate-free.

[0114] According to a particular embodiment, the composition also comprises v) one or more colorants chosen from direct dyes, oxidative dyes and mixtures thereof.

[0115] If colorants are present, they are preferably present in a total content ranging from 0.001% to 10% by weight, preferably from 0.01% to 4% by weight and more preferentially from 0.1% to 1% by weight relative to the total weight of the composition.

[0116] Oxidation dyes Oxidation dyes are generally selected from one or more oxidizing bases optionally combined with one or more coupling agents (also known as couplers).

[0117] Oxidizing Bases The composition may optionally contain one or more oxidizing bases advantageously chosen from those conventionally used for dyeing keratinous fibers.

[0118] By way of example, the oxidizing base is selected from para-phenylenediamines, bis(phenyl)alkylenediamines, para-aminophenols, ortho-aminophenols and heterocyclic bases and the corresponding addition salts.

[0119] Examples of paraphenylenediamines include para-phenylenediamine, para-toluenediamine, 2-chloro-para-phenylenediamine, 2,3-dimethyl-para-phenylenediamine, 2,6-dimethyl-para-phenylenediamine, 2,6-diethyl-para-phenylenediamine, 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)-para-phenylenediamine, 4-N,N-bis(β-hydroxyethyl)amino-2-methylaniline, 4-N,N-bis(β-hydroxyethyl)amino-2-chloroaniline, 2-β-hydroxyethyl-para-phenylenediamine, 2-methoxymethyl-para-phenylenediamine, 2-fluoro-para-phenylenediamine, 2- Mention may be made of isopropyl-para-phenylenediamine, N-(β-hydroxypropyl)-para-phenylenediamine, 2-hydroxymethyl-para-phenylenediamine, N,N-dimethyl-3-methyl-para-phenylenediamine, N-ethyl-N-(β-hydroxyethyl)-para-phenylenediamine, N-(β,γ-dihydroxypropyl)-para-phenylenediamine, N-(4′-aminophenyl)-para-phenylenediamine, N-phenyl-para-phenylenediamine, 2-β-hydroxyethyloxy-para-phenylenediamine, 2-β-acetylaminoethyloxy-para-phenylenediamine, N-(β-methoxyethyl)-para-phenylenediamine, 4-aminophenylpyrrolidine, 2-thienyl-para-phenylenediamine, 2-β-hydroxyethylamino-5-aminotoluene and 3-hydroxy-1-(4′-aminophenyl)pyrrolidine as well as the corresponding addition salts with acids.

[0120] Among the above-mentioned para-phenylenediamines, para-phenylenediamine, para-toluenediamine, 2-isopropyl-para-phenylenediamine, 2-β-hydroxyethyl-para-phenylenediamine, 2-β-hydroxyethyloxy-para-phenylenediamine, 2,6-dimethyl-para-phenylenediamine, 2,6-diethyl-para-phenylenediamine, 2,3-dimethyl-para-phenylenediamine, N,N-bis(β-hydroxyethyl)-para-phenylenediamine, 2-chloro-para-phenylenediamine and 2-β-acetylaminoethyloxy-para-phenylenediamine and the corresponding addition salts with acids are particularly preferred.

[0121] Examples of bis(phenyl)alkylenediamines include N,N'-bis(β-hydroxyethyl)-N,N'-bis(4'-aminophenyl)-1,3-diaminopropanol, N,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, and 1,8-bis(2,5-diaminophenoxy)-3,6-dioxaoctane, as well as the corresponding addition salts.

[0122] Para-aminophenols include, for example, para-aminophenol, 4-amino-3-methylphenol, 4-amino-3-fluorophenol, 4-amino-3-chlorophenol, 4-amino-3-hydroxymethylphenol, 4-amino-2-methylphenol, 4-amino-2-hydroxymethylphenol, 4-amino-2-methoxymethylphenol, 4-amino-2-aminomethylphenol, 4-amino-2-(β-hydroxyethylaminomethyl)phenol and 4-amino-2-fluorophenol, and the corresponding addition salts with acids.

[0123] Ortho-aminophenols include, for example, 2-aminophenol, 2-amino-5-methylphenol, 2-amino-6-methylphenol and 5-acetamido-2-aminophenol and the corresponding addition salts.

[0124] Heterocyclic bases can include, for example, pyridine, pyrimidine and pyrazole derivatives.

[0125] Examples of pyridine derivatives include compounds described in GB 1026978 and GB 1153196, such as 2,5-diaminopyridine, 2-(4-methoxyphenyl)amino-3-aminopyridine and 3,4-diaminopyridine and the corresponding addition salts.

[0126] Other pyridine oxidizing bases useful in the present invention are, for example, the oxidizing bases 3-aminopyrazolo[1,5-a]pyridine or the corresponding addition salts described in French Patent Application Publication No. 2801308. Examples include pyrazolo[1,5-a]pyrid-3-ylamine, 2-acetylaminopyrazolo[1,5-a]pyrid-3-ylamine, 2-(morpholin-4-yl)pyrazolo[1,5-a]pyrid-3-ylamine, 3-aminopyrazolo[1,5-a]pyridine-2-carboxylic acid, 2-methoxypyrazolo[1,5-a]pyrid-3-ylamine, (3-aminopyrazolo[1,5-a]pyrid-7-yl)methanol, 2-( 3-aminopyrazolo[1,5-a]pyrid-5-yl)ethanol, 2-(3-aminopyrazolo[1,5-a]pyrid-7-yl)ethanol, (3-aminopyrazolo[1,5-a]pyrid-2-yl)methanol, 3,6-diaminopyrazolo[1,5-a]pyridine, 3,4-diaminopyrazolo[1,5-a]pyridine, pyrazolo[1,5-a]pyridine-3,7-diamine, 7-(morpholin-4-yl)pyrazolo[1,5- a]pyrid-3-ylamine, pyrazolo[1,5-a]pyridine-3,5-diamine, 5-(morpholin-4-yl)pyrazolo[1,5-a]pyrid-3-ylamine, 2-[(3-aminopyrazolo[1,5-a]pyrid-5-yl)(2-hydroxyethyl)amino]ethanol, 2-[(3-aminopyrazolo[1,5-a]pyrid-7-yl)(2-hydroxyethyl)amino]ethanol, 3-aminopyrazolo[1,5-a ]pyridine-5-ol, 3-aminopyrazolo[1,5-a]pyridine-4-ol, 3-aminopyrazolo[1,5-a]pyridine-6-ol, 3-aminopyrazolo[1,5-a]pyridine-7-ol, 2-β-hydroxyethoxy-3-aminopyrazolo[1,5-a]pyridine and 2-(4-dimethylpiperazinium-1-yl)-3-aminopyrazolo[1,5-a]pyridine and the corresponding addition salts.

[0127] More specifically, the oxidizing base useful in the present invention is a 3-aminopyrazolo[1,5-a]pyridine, preferably having a carbon atom at the 2-position: a)(J)(C 1 ~C6 )(alkyl)amino groups, the alkyl group being optionally substituted with at least one hydroxyl, amino or imidazolium group; b) one or more (C 1 ~C 6 5-7 membered heterocycloalkyl groups, optionally cationic, containing 1-3 heteroatoms, optionally substituted with di(C 1 ~C 4 ) an alkylpiperazinium group; or c) optionally substituted with one or more hydroxyl groups (C 1 ~C 6 ) alkoxy groups, such as β-hydroxyalkoxy groups; and the corresponding addition salts.

[0128] Examples of pyrimidine derivatives include compounds described in patents DE 2359399; JP 02-169571 A; JP 05-63124 A; and 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, 2,4-dihydroxy-5,6-diaminopyrimidine, 2,5,6-triaminopyrimidine, and addition salts thereof and tautomers thereof when tautomeric equilibrium exists.

[0129] Examples of pyrazole derivatives include compounds described in patents German Patent Nos. 3843892 and 4133957, and patent applications WO 94 / 08969, WO 94 / 08970, French Patent Publication No. 2733749A, and German Patent No. 19543988, such as 4,5-diamino-1-methylpyrazole and 4,5-diamino-1-(β-hydroxyethyl)pyrazole. , 3,4-diaminopyrazole, 4,5-diamino-1-(4'-chlorobenzyl)pyrazole, 4,5-diamino-1,3-dimethylpyrazole, 4,5-diamino-3-methyl-1-phenylpyrazole, 4,5-diamino-1-methyl-3-phenylpyrazole, 4-amino-1,3-dimethyl-5-hydrazinopyrazole, 1-benzyl-4,5-diamino-3-methylpyrazole, 4,5-diamino-3-tert-butyl-1-methylpyrazole, 4 ,5-diamino-1-tert-butyl-3-methylpyrazole, 4,5-diamino-1-(β-hydroxyethyl)-3-methylpyrazole, 4,5-diamino-1-ethyl-3-methylpyrazole, 4,5-diamino-1-ethyl-3-(4'-methoxyphenyl)pyrazole, 4,5-diamino-1-ethyl-3-hydroxymethylpyrazole, 4,5-diamino-3-hydroxymethyl-1-methylpyrazole, 4,5-diamino-3-hydroxymethyl- Examples of the pyrazoles include 4,5-diamino-3-methyl-1-isopropylpyrazole, 4-amino-5-(2'-aminoethyl)amino-1,3-dimethylpyrazole, 3,4,5-triaminopyrazole, 1-methyl-3,4,5-triaminopyrazole, 3,5-diamino-1-methyl-4-methylaminopyrazole, 3,5-diamino-4-(β-hydroxyethyl)amino-1-methylpyrazole and the corresponding addition salts. 4,5-diamino-1-(β-methoxyethyl)pyrazole can also be used.

[0130] Preferably, 4,5-diaminopyrazole will be used, more preferentially 4,5-diamino-1-(β-hydroxyethyl)pyrazole and / or the corresponding salts.

[0131] Further pyrazole derivatives include diamino-N,N-dihydropyrazolopyrazolones, in particular those described in patent application FR 2 886 136 A2, such as the following compounds and the corresponding addition salts: 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 2-amino-3-ethylamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazole. -1-one, 2-amino-3-isopropylamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 2-amino-3-(pyrrolidin-1-yl)-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 4,5-diamino-1,2-dimethyl-1,2-dihydropyrazol-3-one, 4,5-diamino-1,2-diethyl-1,2-dihydropyrazol-3-one, 4,5-Diamino-1,2-di(2-hydroxyethyl)-1,2-dihydropyrazol-3-one, 2-Amino-3-(2-hydroxyethyl)amino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 2-Amino-3-dimethylamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, 2,3-Diamino-5,6,7,8-tetrahydro-1H,6H-pyrida Examples include dino[1,2-a]pyrazol-1-one, 4-amino-1,2-diethyl-5-(pyrrolidin-1-yl)-1,2-dihydropyrazol-3-one, 4-amino-5-(3-dimethylaminopyrrolidin-1-yl)-1,2-diethyl-1,2-dihydropyrazol-3-one, and 2,3-diamino-6-hydroxy-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one.

[0132] Preferably, 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one and / or the corresponding salts will be used.

[0133] As heterocyclic bases preferably 4,5-diamino-1-(β-hydroxyethyl)pyrazole and / or 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one and / or the corresponding salts will be used.

[0134] Coupling Agent The composition may optionally comprise one or more coupling agents advantageously chosen from those conventionally used for the dyeing of keratinous fibres.

[0135] Among these coupling agents, mention may be made in particular of meta-phenylenediamines, meta-aminophenols, meta-diphenols, naphthalene-based coupling agents and heterocyclic coupling agents and the corresponding addition salts.

[0136] For example, 1,3-dihydroxybenzene, 1,3-dihydroxy-2-methylbenzene, 4-chloro-1,3-dihydroxybenzene, 2,4-diamino-1-(β-hydroxyethyloxy)benzene, 2-amino-4-(β-hydroxyethylamino)-1-methoxybenzene, 1,3-diaminobenzene, 1,3-bis(2,4-diaminophenoxy)propane, 3-ureidoaniline, 3-ureido-1-dimethylaminobenzene, 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- Mention may be made of dimethoxypyridine, 1-N-(β-hydroxyethyl)amino-3,4-methylenedioxybenzene, 2,6-bis(β-hydroxyethylamino)toluene, 6-hydroxyindoline, 2,6-dihydroxy-4-methylpyridine, 1-H-3-methylpyrazol-5-one, 1-phenyl-3-methylpyrazol-5-one, 2,6-dimethylpyrazolo[1,5-b]-1,2,4-triazole, 2,6-dimethyl[3,2-c]-1,2,4-triazole, 6-methylpyrazolo[1,5-a]benzimidazole, 2-methyl-5-aminophenol, 5-N-(β-hydroxyethyl)amino-2-methylphenol, 3-aminophenol and 3-amino-2-chloro-6-methylphenol, the corresponding addition salts with acids and the corresponding mixtures.

[0137] In general, the addition salts of the oxidizing bases and of the coupling agents which can be used in connection with the present invention are chosen in particular from addition salts with acids, such as the hydrochlorides, bromates, sulfates, citrates, succinates, tartrates, lactates, tosylates, benzenesulfonates, phosphates and acetates.

[0138] Advantageously, the oxidizing bases each represent between 0.001% and 10% by weight relative to the total weight of the composition, and preferably between 0.005% and 5% by weight relative to the total weight of the composition.

[0139] When present, the coupling agent advantageously represents from 0.001% to 10% by weight, respectively, relative to the total weight of the composition, and preferably from 0.005% to 5% by weight, respectively, relative to the total weight of the composition.

[0140] direct dye The composition may also include one or more direct dyes.

[0141] The direct dyes may be neutral, cationic or anionic direct dyes, preferably neutral or cationic direct dyes.

[0142] Direct dyes are: acridines; acridones; anthranthrones; anthrapyrimidines; anthraquinones; azines; (poly)azo or azo, hydrazono or hydrazones, especially arylhydrazones; azomethines; benzanthrones; benzimidazoles; benzimidazolones; benzindoles; benzoxazoles; benzopyrans; benzothiazoles; benzoquinones; bis-isoindolines; carboxanilines. amides; coumarins; cyanines such as (di)azacarbocyanines, (di)azahemicyanines, hemicyanines, or tetraazacarbocyanines; (di)azines; bis-azines; (di)oxazines; (di)thiazines; (di)phenylamines; (di)phenylmethanes; (di)ketopyrrolopyrroles; flavonoids such as flavanthrones and flavones; fluorindins; formasans; indamines; indanthrones; indigoids, thioindigoids, and the like. and pseudoindigoids; indophenols; indoanilines; isoindolines; isoindolinones; isoviolanthrone; lactones; (poly)methines such as dimethines of the stilbene or styryl type; naphthalimides; naphthanilides; naphtholactams; naphthoquinones; nitro, especially nitro(hetero)aromatics; oxadiazoles; oxazines; perilones; perinones; perylenes; phenazines; phenoxazines; phenothiazines; phthalocyanines; polyenes / carotenoids; porphyrins; pyranthrones; pyrazoloanthrones; pyrazolones; pyrimidinoanthrones; pyronines; quinacridones; quinolines; quinophthalones; squalanes; tetrazolines; thiazines; thiopyronines; triarylmethanes; or xanthenes; and natural direct dyes. Preferably, the direct dyes are chosen from anthraquinones, (poly)azos, azomethines and stilbenes, and more preferentially from anthraquinones.

[0143] The direct dyes may be selected in particular from neutral, cationic or anionic nitrobenzene direct dyes, neutral, cationic or anionic azo direct dyes, neutral, cationic or anionic tetraazapentamethine dyes, cationic or anionic quinone dyes, in particular neutral, cationic or anionic anthraquinone dyes, neutral, cationic or anionic azine direct dyes, neutral, cationic or anionic triarylmethane direct dyes, neutral, cationic or anionic azomethine direct dyes and natural direct dyes. Preferably, the direct dyes are selected from neutral or anionic anthraquinone dyes and stilbenes.

[0144] As neutral, anionic or cationic direct dyes which can be used in the present invention, the following dyes may be mentioned: acridines; acridones; anthranthrones; anthrapyrimidines; anthraquinones; azines; (poly)azo; hydrazonos or hydrazones, in particular arylhydrazones; azomethines; benzanthrones; benzimidazoles; benzimidazolones; benzindoles; benzoxazoles; benzopyrans; benzothiazoles; benzoquinones; bisazines; bis-isoindolines; carboxanilides; coumarins; cyanines, such as azacarbocyanines, diazacarbocyanines, diazahemicyanines, hemicyanines or tetraazacarbocyanines; diazines; diketopyrrolopyrroles; dioxazines; diphenylamines; diphenylmethanes; dithiaazines; flavonoids, such as flavanthrones and flavones; fluorindins; formazans. ;indamines;indanthrones;indigoids and pseudoindigoids;indophenols;indoanilines;isoindolines;isoindolinones;isoviolanthrone;lactones;(poly)methines such as dimethines of the stilbene or styryl type;naphthalimides;naphthanilides;naphtholactams;naphthoquinones;nitro, especially nitro(hetero)aromatic compounds;oxadiazoles;oxazines, perilones;perinones;perylenes;phenazines;phenoxazines;phenothiazines;phthalocyanines;polyenes / carotenoids;porphyrins;pyranthrones;pyrazoloanthrones;pyrazolones;pyrimidinoanthrones;pyronines;quinacridones;quinolines;quinophthalones;squalanes;tetrazoles;thiazines;thioindigo;thiopyronines;triarylmethanes;or xanthenes.

[0145] neutral direct dye The direct dyes may preferably be neutral direct dyes selected from hydrazono dyes of formulae (IIIa) and (III'a), azo and styryl dyes (IVa), diazo and distyryl dyes (IV'a) and (IV''a), anthraquinone dyes (Va) and azomethine dyes (VIa) and (VI'a) and mixtures thereof, [ka] (In formulas (IIIa), (III'a), (IVa), (IV'a), (IV''a), (Va), (VIa) and (VI'a), Ar is an aryl group containing at least one electron donating group, such as i) an optionally substituted (C 1 ~C 8 ii) alkyl, optionally substituted (C 1 ~C 8 ) alkoxy, iii) alkyl groups optionally substituted with hydroxyl groups (di) (C 1 ~C 8 ) (alkyl) amino, iv) aryl (C 1 ~C 8 ) alkylamino, v) optionally substituted N—(C 1 ~C 8 )Alkyl-N-aryl(C 1 ~C 8 ) alkylamino, an aryl group substituted with, for example, phenyl or naphthyl, or Ar represents a julolidine group; Ar′ is an optionally substituted divalent (hetero)arylene group, for example preferably one or more (C 1 ~C 8 ) alkyl group, hydroxyl group or (C 1 ~C 8 phenylene, in particular paraphenylene or naphthalene, optionally substituted with an alkoxy group; Ar″ is a (hetero)aryl group, optionally and preferably containing at least i) an electron-withdrawing group such as nitro, nitroso, —C(X)-X′-R′, or ii) a (di)(C 1 ~C 6 ) (alkyl) amino group, iii) hydroxyl, iv) (C 1 ~C 6) an alkoxy-substituted (hetero)aryl group; in particular (hetero)aryl is selected from imidazolyl, triazolyl, indolyl or pyridyl, or from phenyl optionally substituted with at least one group selected from nitro, nitroso and amino, preferably in the para position of the phenyl group; X, X' and X'', which may be identical or different, represent an oxygen or sulfur atom or an NR'' group, preferably an oxygen atom; R 1 , R 2 , R 3 and R 4 may be the same or different and represent a hydrogen or halogen atom or a hydroxyl, thiol, (C 1 ~C 4 ) alkyl, (C 1 ~C 4 )Alkoxy, (di)(C 1 ~C 4 ) (alkyl)amino, nitro and nitroso; R' and R'' are (C 1 ~C 4 ) represents an alkyl group; R a and R b may be the same or different and represent a hydrogen atom or, preferably, optionally substituted with a hydroxyl group (C 1 ~C 8 ) represents an alkyl group; Or, as a variation, the substituent R a is a substituent of Ar″ and / or R b is a substituent of Ar and / or R a R b together with the atom to which they are attached form a (hetero)cycloalkyl; In particular, R a and R b represents a hydrogen atom or is optionally substituted with a hydroxyl group (C 1 ~C 4 ) represents an alkyl group; T and T' may be the same or different, and C(Ra ) group or N, preferably N; L is a divalent radical -ALK-, -C(X)-ALK-, -ALK-C(X)- or -C(X)-ALK-C(X')-, where ALK is a linear or branched (C 1 ~C 6 ) an alkylene group, and X and X' are as defined above, R 22 , R 23 , R 24 , R 25 , R 26 and R 27 may be the same or different and represent a hydrogen or halogen atom or a group as shown below: - (C 1 ~C 6 ) alkyl; - hydroxyl, mercapto; - (C 1 ~C 6 ) alkoxy, (C 1 ~C 6 ) alkylthio; - aryloxy or arylthio; - Aryl (C 1 ~C 6 )(alkyl)amino; - (C) 1 ~C 6 )(alkyl)amino; - (Di)(hydroxy(C 1 ~C 6 )alkyl)amino; represents a group selected from Z' represents a hydrogen atom or NR 28 R 29 group (in the formula, R 28 and R 29 may be the same or different and represent a hydrogen atom or a group as shown below: - (C 1 ~C 6 ) alkyl; - Polyhydroxy (C 1 ~C 6 ) alkyl; one or more groups, in particular i) (C 1 ~C 6 ) alkyl; iii) R°-C(X)-X'-, R°-X'-C(X)- or R°-X'-C(X)-X''-, where R° is 1 ~C 6 ) an alkyl group, where X, X' and X'' are as defined above; iv) an aryl optionally substituted with a sulfonate; - cycloalkyl, in particular cyclohexyl; represents a group selected from Z is hydroxyl and NR' 28 R' 29 (In the formula, R' 28 and R' 29 may be the same or different, and are R 28 and R 29 represents the same atom or group as

[0146] The direct dye a) of formula (IV″a) preferably has the formula (IV′″a): [ka] (In formula (IV'''a), R 1 and R 3 may be the same or different, and are preferably the same, and are each a hydrogen atom, a methyl atom, or the like (C 1 ~C 4 ) an alkyl group or a sugar such as glucosyl, preferably a hydrogen atom; R 2 and R 4 may be the same or different, and are preferably the same, and are a hydrogen atom, (C 1 ~C 4 ) alkyl or (C 1 ~C 4 ) an alkoxy group, or an -O-sugar group such as -O-glucosyl, preferably a (C 1 ~C 4 ) represents alkoxy; X may be identical or different, preferably identical, and represent an oxygen or sulfur atom or NR, where R represents a hydrogen atom or any group, preferably an oxygen atom; ALK is a (C 1 ~C 4 ) an alkylene group, preferably methylene It is of the following.

[0147] The direct dyes of formula (IV''a) can be derived from curcumin, demethoxycurcumin and bisdemethoxycurcumin.

[0148] Preferably, the direct dyes are selected from the direct dyes of formulae (IV''a) and (IV'''a) defined above, and mixtures thereof.

[0149] According to a particularly preferred embodiment, the direct dye is a neutral direct dye selected from the following compounds (A) to (G) and mixtures thereof: [ka] It is preferably selected from compounds (E), (F) and (G) and mixtures thereof, and more preferentially from compounds (E) and (G) and mixtures thereof.

[0150] Cationic Direct Dyes The direct dyes can be selected from those which are generally referred to as "basic dyes" because they are cationic or have an affinity for acidic substances, in particular those which contain at least one endocyclic or exocyclic cationic or cationizable group in their structure.

[0151] As cationic azo dyes that can be used in the present invention, mention may be made in particular of the cationic dyes described in Kirk-Othmer's Encyclopaedia of Chemical Technology, "Dyes, Azo", J. Wiley & Sons, revised on April 19, 2010.

[0152] Mention may also be made of the cationic azo dyes described in patent applications WO 95 / 15144, WO 95 / 01772 and EP 714954.

[0153] Mention may also be made of the cationic azo dyes described in the Colour Index International, 3rd Edition, in particular the following compounds: Basic Red 22; Basic Red 76; Basic Yellow 57; Basic Brown 16; Basic Brown 17.

[0154] Among the cationic quinone dyes suitable for use are those mentioned in the Colour Index International, 3rd Edition, among which the following dyes may be mentioned in particular: Basic Blue 22; Basic Blue 99.

[0155] Among the azine dyes suitable for use, mention may be made of those listed in the Colour Index International, 3rd Edition, such as the following dyes: Basic Blue 17, Basic Red 2.

[0156] Among the cationic triarylmethane dyes which can be used according to the invention, in addition to those listed in the Colour Index International, 3rd Edition, mention may be made of the following dyes: Basic Green 1, Basic Violet 3, Basic Violet 14, Basic Blue 7, Basic Blue 26.

[0157] Mention may also be made of the direct dyes described in documents U.S. Pat. No. 5,888,252, EP 1,133,975, WO 03 / 029359, EP 860,636, WO 95 / 01772, WO 95 / 15144 and EP 714,954.

[0158] Mention may also be made of those listed in the encyclopedia "The Chemistry of Synthetic Dyes" by K. Venkataraman, 1952, Academic Press, volumes 1-7; the chapter "Dyes and Dye Intermediates" in the "Kirk-Othmer Encyclopaedia of Chemical Technology", 1993, Wiley and Sons; and various chapters in "Ullmann's Encyclopaedia of Industrial Chemistry", 7th edition, Wiley and Sons.

[0159] Preferably, the cationic direct dyes are chosen from those obtained from the azo and hydrazono type dyes.

[0160] Cationic direct dyes are disclosed in European Patent No. 850636, French Patent No. 2788433, European Patent No. 920856, International Publication No. 9948465, French Patent No. 2757385, European Patent No. 850637, European Patent No. 918053, International Publication No. 9744004, French Patent No. 2570946, French Patent No. 2285851, German Patent No. 2538363, French Patent No. 2189006, French Patent No. 1560664, French Patent No. 1540423, French Patent No. 1567219, French Patent No. 1516943, French Patent No. 1221122, German Patent No. 4220388, German Patent No. 4137005, International Publication No. 0166646, U.S. Patent No. 5708151, International Publication No. 9501772, International Publication No. 515144, British Patent No. 1195386, U.S. Patent No. 3524842, U.S. Patent No. 5879413, European Patent No. 1062940, European Patent No. 1133976, British Patent No. 738585, German Patent No. 2527638, French Patent No. 2275462, British Patent No. 1974-27645, Acta Histochem.(1978),61(1),48-52;Tsitologiya(1968),10(3),403-5;Zh.Obshch.Khim.(1970),40(1),195-202;Ann.Chim.(Rome)(1975),65(5-6),305-14;Journal of the Chinese Chemical Society(Taipei)(1998),45(1),209-211;Rev.Roum.Chim.(1988),33(4),377-83;Text.Res.J.(1984),54(2),105-7;Chim .Ind.(Milan)(1974),56(9),600-3;Khim.Tekhnol.(1979),22(5),548-53;Ger.Monatsh.Chem.(1975),106(3),643-8;MRL Bull.Res.Dev.(1992), 6(2), 21-7; Lihua Jianyan, Huaxue Fence (1993), 29(4), 233-4; Dyes Pigm. (1992), 19(1), 69-79; Dyes Pigm. (1989), 11(3), 163-72.

[0161] Preferably, the cationic direct dye comprises a quaternary ammonium group; more preferentially, the cationic charge is within the ring. This cationic group may be, for example, - Outside the ring (di / tri) (C 1 ~C 8 ) a cationic group having an alkyl ammonium charge; or - an intraring charge, for example: acridinium, benzimidazolium, benzobistriazolium, benzopyrazolium, benzopyridazinium, benzoquinolium, benzothiazolium, benzotriazolium, benzoxazolium, bipyridinium, bis-tetrazolium, dihydrothiazolium, imidazopyridinium, imidazolium, indolium, isoquinolium, naphthimidazolium, naphthoxazolium, naphthopyrazolium, oxadiazolium, oxazolium, The cationic group has an intracyclic charge and comprises a cationic heteroaryl group selected from oxazolopyridinium, oxonium, phenazinium, phenoxazolium, pyrazinium, pyrazolium, pyrazoyltriazolium, pyridinium, pyridinoimidazolium, pyrrolium, pyrylium, quinolium, tetrazolium, thiadiazolium, thiazolium, thiazolopyridinium, thiazoylimidazolium, thiopyrylium, triazolium, or xanthylium.

[0162] Mention may also be made of the cationic hydrazono direct dyes of the formulae (IIb) and (IIIb) and the azo direct dyes of the formulae (IVb) and (Vb): Het + -C(R a )=NN(R b )-Ar,Q - (IIb); Het+ -N(R a )-N=C(R b )-Ar,Q - (IIIb); Het + -N=N-Ar,Q (IVb); Ar + -N=N-Ar'',Q - (Vb); (In formulas (IIb) to (Vb), · Het + is a cationic heteroaryl group, preferentially having at least one (C 1 ~C 8 ) cationic heteroaryl groups, such as imidazolium, indolium or pyridinium, optionally substituted with alkyl groups, preferentially carrying a cationic charge in the ring; · Ar + The ring has a cationic charge on the outside, preferentially ammonium, especially tri(C) such as trimethylammonium. 1 ~C 8 ) an aryl group such as phenyl or naphthyl having an alkyl ammonium; Ar is an optionally substituted aryl group, preferentially containing one or more electron donating groups, such as i) optionally substituted (C 1 ~C 8 ii) alkyl, optionally substituted (C 1 ~C 8 ) alkoxy, iii) alkyl groups optionally substituted with hydroxyl groups (di) (C 1 ~C 8 ) (alkyl) amino, iv) aryl (C 1 ~C 8 ) alkylamino, v) optionally substituted N—(C 1 ~C 8 )Alkyl-N-aryl(C 1 ~C 8 ) alkylamino, an aryl group, in particular phenyl, optionally substituted with phenyl, or Ar represents a julolidine group; Ar″ is an optionally substituted (hetero)aryl group, such as phenyl or pyrazolyl, preferentially containing one or more (C 1 ~C 8 )Alkyl, Hydroxyl, (Di)(C 1 ~C 8 )(alkyl)amino, (C 1 ~C 8 ) a (hetero)aryl group optionally substituted with an alkoxy or phenyl group; R a and R b may be the same or different and represent a hydrogen atom or, preferentially, optionally substituted with a hydroxyl group (C 1 ~C 8 ) represents an alkyl group; Alternatively, the substituent R a Het + and / or R b is a substituent of Ar and / or R a R b together with the atom to which they are attached form a (hetero)cycloalkyl; in particular R a and R b represents a hydrogen atom or is optionally substituted with a hydroxyl group (C 1 ~C 4 ) represents an alkyl group; Q - represents an anionic counterion such as a halide, alkyl sulfate, or alkyl sulfonate).

[0163] Mention may in particular be made of the azo and hydrazono direct dyes of formulae (IIb) to (Vb) having an internal cationic charge in the ring as defined above, more particularly the cationic direct dyes of formulae (IIb) to (Vb) having an internal cationic charge in the ring as described in patent applications WO 95 / 15144, WO 95 / 01772 and EP 714954.

[0164] Preferably, the following direct dyes may be mentioned: [ka] (In formulas (II-1) and (IV-1), R 1 is (C 1 ~C 4 ) represents an alkyl group; R 2 and R 3 may be the same or different and represent a hydrogen atom or (C 1 ~C 4 ) represents an alkyl group; R 4 represents a hydrogen atom or an electron donating group, such as an optionally substituted (C 1 ~C 8 ) alkyl, optionally substituted (C 1 ~C 8 ) alkoxy or alkyl groups optionally substituted with hydroxyl groups (di) (C 1 ~C 8 )(alkyl)amino; in particular R 4 is a hydrogen atom; Z represents a CH group or a nitrogen atom, preferentially CH, Q - is an anionic counterion as defined above, in particular a halide such as chloride or an alkyl sulfate such as methyl sulfate or mesyl).

[0165] In particular, the dyes of formulae (II-1) and (IV-1) are selected from Basic Red 51, Basic Yellow 87 and Basic Orange 31 or derivatives thereof: [ka] where Q' is an anionic counterion as defined above, in particular a halide such as chloride or an alkyl sulfate such as methyl sulfate or mesyl.

[0166] Fluorescent dyes The direct dye may be selected from fluorescent direct dyes.

[0167] Examples of fluorescent dyes that can be used in the present invention include neutral, anionic or cationic dyes selected from the following dyes: acridine, acridone, benzanthrone, benzimidazole, benzimidazolone, benzindole, benzoxazole, benzopyran, benzothiazole, coumarin, difluoro{2-[(2H-pyrrol-2-ylidene-kN)methyl]-1H-pyrrolato-kN}boron (BODIPY®), diketopyrrolopyrrole, fluorindine, (poly)methines (especially cyanines and styryl / hemicyanines), naphthalimides, naphthanilides, naphthylamines (such as dansyl), oxadiazoles, oxazines, perylones, perinones, perylenes, polyenes / carotenoids, squalanes, stilbenes, xanthenes.

[0168] Fluorescent dyes described in EP 1 133 975, WO 03 / 029359, EP 860 636, WO 95 / 01772, WO 95 / 15144 and EP 714 954, as well as in the encyclopedia "The Chemistry of Synthetic Dyes" by K. Venkataraman, 1952, Academic Press, volumes 1-7, the chapter "Dyes and Dye Intermediates" in the "Kirk-Othmer Encyclopaedia of Chemical Technology", 1993, Wiley and Sons, various chapters in "Ullmann's Encyclopaedia of Industrial Chemistry", 7th edition, Wiley and Sons, and in the handbooks "A Guide to Fluorescent Probes and Labeling Technologies", 10th Ed., Molecular Chemistry, distributed on the Internet or in preprinted versions. Probes / Invitrogen-Oregon 2005 may also be mentioned.

[0169] According to a preferred variant, the fluorescent dye is a cationic polymethine containing at least one quaternary ammonium group, such as that of the following formula (Vb): + -[C(R c )=C(R d )] m’ -Ar,Q - (In formula (Vb), W + is a cationic heterocyclic or heteroaryl group, in particular containing a quaternary ammonium, which is in particular one or more (C 1 ~C 8 ) a cationic heterocyclic or heteroaryl group optionally substituted with an alkyl group; Ar is an aryl group, such as phenyl or naphthyl, optionally and preferentially containing i) one or more halogen atoms, such as chlorine or fluorine; ii) one or more (C 1 ~C 8 ) alkyl, preferably (C 1 ~C 4 ) an alkyl group; iii) one or more hydroxyl groups; iv) one or more methoxy groups, such as (C 1 ~C 8 ) an alkoxy group; v) one or more hydroxy groups, such as hydroxyethyl (C 1 ~C 8 ) an alkyl group; vi) one or more amino groups or 1 ~C 4 The alkyl moiety is preferably (di)(C 1 ~C 8 vii) an alkylamino group, such as (di)hydroxyethylamino; vii) one or more acylamino groups; viii) an aryl group substituted with one or more heterocycloalkyl groups, such as piperazinyl, piperidyl, or 5- or 6-membered heteroaryl groups, such as pyrrolidinyl, pyridyl, and imidazolinyl; m' represents an integer ranging from 1 to 4, preferably m' is 1 or 2; more preferentially m'=1; R c and R d may be the same or different and represent a hydrogen atom or an optionally substituted (C 1 ~C 8 ) alkyl group, preferably (C 1 ~C 4 ) an alkyl group, or W + and adjacent R c and / or R adjacent to Ar d together with the atom to which they are attached form a (hetero)cycloalkyl; in particular R c W + and adjacent to each other, which form a (hetero)cycloalkyl, such as cyclohexyl; Q - is the anionic counterion defined above).

[0170] Anionic Dyes The direct dyes may be selected from anionic direct dyes or dyes commonly referred to as "acid" direct dyes because of their affinity for alkaline materials.

[0171] The term "anionic direct dye" refers to a dye that has at least one CO 2 R or SO 3 It is intended to mean any direct dye comprising an R substituent, where R represents a hydrogen atom or a cation or an ammonium ion derived from a metal or an amine. The anionic dyes may be chosen from acid nitro direct dyes, acid azo dyes, acid azine dyes, acid triarylmethane dyes, acid indoamine dyes, acid anthraquinone dyes, indigoids and acid natural dyes.

[0172] Preferably, the anionic direct dye is an acidic anthraquinone dye.

[0173] The direct dye may preferably be an anionic direct dye selected from the dyes of the following formulae (III), (III'), (IV), (IV'), (V), (V'), (VI), (VI'), (VII), (VIII), (IX) and (X) and mixtures thereof:

[0174] a) diaryl anionic azo dyes of formula (III) or (III'): [ka] (In formulas (III) and (III'): R 7 , R 8 , R 9 , R 10 , R' 7 , R' 8 , R' 9 , and R' 10 may be the same or different and represent a hydrogen atom or a group as shown below: - (C 1 ~C 6 ) alkyl; - (C 1 ~C 6 ) alkoxy, (C 1 ~C 6 ) alkylthio; - hydroxyl, mercapto; - Nitro, nitroso; - R°-C(X)-X'-, R°-X'-C(X)-, R°-X'-C(X)-X''- (wherein R° is a hydrogen atom or (C 1 ~C 6 X, X' and X'' may be the same or different and represent an oxygen or sulfur atom or NR (wherein R is a hydrogen atom or (C 1 ~C 6 ) represents an alkyl group); - (O) 2 S(O - )-,M + (In the formula, M + represents a hydrogen atom or a cationic counter ion); - (O)CO- -,M + (In the formula, M + is as defined above); - R''-S(O) 2 - (wherein R″ is a hydrogen atom or an alkyl, aryl, (di)(C 1 ~C 6 )(alkyl)amino or aryl(C 1 ~C 6 ) (alkyl) amino radical; preferentially phenylamino or phenyl radical; - R'''-S(O) 2 -X'- (wherein R''' is an optionally substituted (C 1 ~C 6 ) an alkyl or aryl group, and X' is as defined above; - (C) 1 ~C 6 )(alkyl)amino; - i) nitro; ii) nitroso; iii) (O) 2 S(O - )-,M + (In the formula, M + is as defined above) and iv) (C 1 ~C 6 ) alkoxy; aryl (C 1 ~C 6 )(alkyl)amino; - optionally substituted heteroaryl; preferentially a benzothiazolyl group; - cycloalkyl, in particular cyclohexyl; - Ar-N=N-, where Ar represents an optionally substituted aryl group; preferentially one or more alkyl, (O) 2 S(O - )-,M + or phenyl optionally substituted with a phenylamino group; or - or two adjacent groups R 7 and R 8 or R 8 and R 9 or R9 and R 10 together form a fused benzo group A'; R' 7 and R' 8 or R' 8 and R' 9 or R' 9 and R' 10 together form a fused benzo group B'; A' and B' are i) nitro; ii) nitroso; iii) (O) 2 S(O - )-,M + iv) hydroxyl; v) mercapto; vi) (di)(alkyl)amino; vii) R°-C(X)-X'-; viii) R°-X'-C(X)-; ix) R°-X'-C(X)-X''-; x) Ar-N=N-; and xi) optionally substituted aryl (C 1 ~C 6 )(alkyl)amino (wherein M + , R°, X, X′, X″ and Ar are as defined above; W is a sigma σ bond, an oxygen or sulfur atom, or a divalent radical i) -NR-, where R is as defined above, or ii) methylene-C(R a )(R b )-(wherein, R a and R b may be the same or different and represent a hydrogen atom or an aryl group, or R a and R b together with the carbon atom to which they are attached form a spirocycloalkyl; preferentially, W represents a sulfur atom or R a and R b together to form cyclohexyl; With the proviso that formulae (III) and (III') have on one of rings A, A', B, B' or C: - At least one (O) 2 S(O - )-,M' + group (in the formula, M' + represents a cationic counterion); or - at least one (O)CO- -,M' + group (in the formula, M' + represents a cationic counterion); Preferably, at least one sodium sulfonate group; (It is understood that this includes.)

[0175] Examples of dyes of formula (III) are: Acid Red 1, Acid Red 4, Acid Red 13, Acid Red 14, Acid Red 18, Acid Red 27, Acid Red 28, Acid Red 32, Acid Red 33, Acid Red 35, Acid Red 37, Acid Red 40, Acid Red 41, Acid Red 42, Acid Red 44, Pigment. Red 57, Acid Red 68, Acid Red 73, Acid Red 135, Acid Red 138, Acid Red 184, Food Red 1, Food Red 13, Acid Orange 6, Acid Orange 7, Acid Orange 10, Acid Orange 19, Acid Orange 20, Acid Orange 24, Yellow 6, Acid Yellow 9, Acid 36, Acid Yellow 199, Food Yellow 3, Acid Violet 7, Acid Violet 14, Acid Blue 113, Acid Blue 117, Acid Black 1, Acid Brown 4, Acid Brown 20, Acid Black 26, Acid Black 52, Food Black 1, Food Black 2, Food Yellow 3, or Sunset Yellow; Examples of dyes of formula (III') include: Acid Red 111, Acid Red 134, Acid Yellow 38.

[0176] b) Anionic pyrazolone azo dyes of formula (IV) or (IV'): [ka] (In formulas (IV) and (IV'): R 11 , R 12 and R 13 may be the same or different, and are a hydrogen atom, a halogen atom, (C 1 ~C 6 ) alkyl group or -(O) 2 S(O - ),M + group (in the formula, M + is as defined above); R 14 is a hydrogen atom, (C 1 ~C 6 ) alkyl group or -C(O)O - ,M + group (in the formula, M + is as defined above); R 15 represents a hydrogen atom; R 16 represents an oxo group, in which case R' 16 does not exist, or R 15 R 16 together to form a double bond; R 17 and R 18 may be the same or different and represent a hydrogen atom, or: - (O) 2 S(O - )-,M + (In the formula, M + is as defined above); - Ar-OS(O) 2 - in which Ar represents an optionally substituted aryl group, preferentially phenyl optionally substituted with one or more alkyl groups; represents a group selected from R 19 and R 20 together form either a double bond or an optionally substituted benzo group D'; R' 16 , R' 19 and R' 20may be the same or different, and each represents a hydrogen atom, (C 1 ~C 6 ) an alkyl group or a hydroxyl group; R 21 is a hydrogen atom, (C 1 ~C 6 ) alkyl group or (C 1 ~C 6 ) an alkoxy group; R a and R b may be identical or different and are as defined above; preferentially, R a represents a hydrogen atom, and R b represents an aryl group such as phenyl; Y represents either a hydroxyl group or an oxo group; · [ka] represents a single bond when Y is an oxo group, and represents a double bond when Y is a hydroxyl group; With the proviso that formulae (IV) and (IV') have on one of rings D or E: - At least one (O) 2 S(O - )-,M' + group (in the formula, M' + represents a cationic counterion); or - at least one (O)CO - -,M' + group (in the formula, M' + represents a cationic counterion); Preferably, at least one sodium sulfonate group; (It is understood that this includes.)

[0177] As examples of dyes of formula (IV) there may be mentioned: Acid Red 195, Acid Yellow 23, Acid Yellow 27 or Acid Yellow 76; as examples of dyes of formula (IV') there may be mentioned: Acid Yellow 17.

[0178] c) Anthraquinone dyes of formula (V) or (V'): [ka] (In the formulas (V) and (V'), R 22 , R 23 , R 24 , R 25 , R 26 and R 27 may be the same or different and represent a hydrogen atom, a halogen atom, or a group as shown below: - (C 1 ~C 6 ) alkyl; - hydroxyl, mercapto; - (C 1 ~C 6 ) alkoxy, (C 1 ~C 6 ) alkylthio; - optionally substituted aryloxy or arylthio, preferentially alkyl and (O) 2 S(O - )-,M + (In the formula, M + is as defined above); - Alkyl and (O) 2 S(O - )-,M + (In the formula, M + is as defined above), 1 ~C 6 )(alkyl)amino; - (C) 1 ~C 6 )(alkyl)amino; - (Di)(hydroxy(C 1 ~C 6 )alkyl)amino; - (O) 2 S(O - )-,M + (In the formula, M + is as defined above); represents a group selected from Z' represents a hydrogen atom or NR 28 R 29 group (in the formula, R 28 and R 29 may be the same or different and represent a hydrogen atom or a group as shown below: - (C 1 ~C 6 ) alkyl; - Polyhydroxy (C 1 ~C 6 ) alkyl; - one or more groups, in particular i) (C 1 ~C 6 ) alkyl; ii) (O) 2 S(O - )-,M + (In the formula, M + is as defined above; iii) R°-C(X)-X′-, R°-X′-C(X)- or R°-X′-C(X)-X″-, where R°, X, X′, and X″ are as defined above and preferentially R° is (C 1 ~C 6 ) alkyl group; aryl optionally substituted with; - cycloalkyl, in particular cyclohexyl; represents a group selected from Z is hydroxyl and NR' 28 R' 29 (In the formula, R' 28 and R' 29 may be the same or different, and are R 28 and R 29 represents the same atom or group as wherein formulas (V) and (V') are: - At least one (O) 2 S(O - )-,M' + group (in the formula, M' + represents a cationic counterion); or - at least one (O)CO --,M' + group (in the formula, M' + represents a cationic counterion); Preferably, at least one sodium sulfonate group; (It is understood that this includes.)

[0179] Examples of dyes of formula (V) include: Acid Blue 25, Acid Blue 43, Acid Blue 62, Acid Blue 78, Acid Blue 129, Acid Blue 138, Acid Blue 140, Acid Blue 251, Acid Green 25, Acid Green 41, Acid Violet 42, Acid Violet 43, Mordant Red 3, or Ext. Violet No. 2: An example of the dye of formula (V') is Acid Black 48.

[0180] d) Nitro dyes of formula (VI) or (VI'): [ka] (In formulas (VI) and (VI'): R 30 , R 31 and R 32 may be the same or different and represent a hydrogen atom, a halogen atom, or a group as shown below: - (C 1 ~C 6 ) alkyl; - optionally substituted with one or more hydroxyl groups (C 1 ~C 6 ) optionally substituted with alkoxy or one or more hydroxyl groups (C 1 ~C 6 ) alkylthio; - hydroxyl, mercapto; - Nitro, nitroso; - Polyhalo(C 1 ~C 6 ) alkyl; - R°-C(X)-X'-, R°-X'-C(X)- or R°-X'-C(X)-X''-, where R°, X, X' and X'' are as defined above; - (O) 2 S(O - )-,M + (In the formula, M + is as defined above); - (O)CO - -,M + (In the formula, M + is as defined above); - (C) 1 ~C 6 )(alkyl)amino; - (Di)(hydroxy(C 1 ~C 6 )alkyl)amino; - heterocycloalkyl, such as piperidino, piperazino or morpholino; represents a group selected from In particular, R 30 , R 31 and R 32 represents a hydrogen atom; R c and R d may be the same or different, and each represents a hydrogen atom or (C 1 ~C 6 ) represents an alkyl group; W is as defined above; in particular W represents a N(H)-group; ALK is a linear or branched bivalent C 1 ~C 6 Represents an alkylene group; in particular, ALK is -CH 2 -CH 2 - represents a group; n has a value of 1 or 2; p represents an integer ranging from 1 to 5; q represents an integer ranging from 1 to 4; u has a value of 0 or 1; When n has a value of 1, J represents a nitro or nitroso group; in particular a nitro group; When n has a value of 2, J is an oxygen or sulfur atom or a divalent radical -S(O) m - (wherein m represents an integer 1 or 2); preferentially, J represents -SO 2 - represents a group; M″ represents a hydrogen atom or a cationic counterion; · [ka] is present or absent and is one or more R 30 represents a benzo group optionally substituted with a group; wherein formulas (VI) and (VI') are: - At least one (O) 2 S(O - )-,M' + group (in the formula, M' + represents a cationic counterion); or - at least one (O)CO - -,M' + group (in the formula, M' + represents a cationic counterion); Preferably, at least one sodium sulfonate group; (It is understood that this includes.)

[0181] Examples of dyes of formula (VI) include: Acid Brown 13 and Acid Orange 3; examples of dyes of formula (VI') include Acid Yellow 1, the sodium salt of 2,4-dinitro-1-naphthol-7-sulfonic acid, 2-piperidino-5-nitrobenzenesulfonic acid, 2-(4'-N,N-2"-hydroxyethyl)amino-2'-nitro)anilineethanesulfonic acid, 4-β-hydroxyethylamino-3-nitrobenzenesulfonic acid; EXT.D&C Yellow 7.

[0182] e) a triarylmethane dye of formula (VII): [ka] (In formula (VII), R 33 , R 34 , R 35 and R 36 may be the same or different and represent a hydrogen atom, or (C 1 ~C 6 ) alkyl, optionally substituted aryl and optionally substituted aryl (C 1 ~C 6 ) alkyl; in particular (C 1 ~C 6 ) alkyl group and optionally (O) m S(O - )-,M + group (in the formula, M + and m is as defined above) represents a group selected from benzyl substituted with; R 37 , R 38 , R 39 , R 40 , R 41 , R 42 , R 43 and R 44 may be the same or different and represent a hydrogen atom or a group as shown below: - (C 1 ~C 6 ) alkyl; - (C 1 ~C 6 ) alkoxy, (C 1 ~C 6 ) alkylthio; - (C) 1 ~C 6 )(alkyl)amino; - hydroxyl, mercapto; - Nitro, nitroso; - R°-C(X)-X'-, R°-X'-C(X)- or R°-X'-C(X)-X''-, where R° represents a hydrogen atom or an alkyl or aryl group; X, X' and X'' may be the same or different and represent an oxygen or sulfur atom or NR, where R represents a hydrogen atom or (C 1 ~C 6 ) represents an alkyl group); - (O) 2 S(O - )-,M + (In the formula, M + represents a hydrogen atom or a cationic counter ion); - (O)CO - -,M + (In the formula, M + is as defined above); represents a group selected from - or two adjacent groups R 41 and R 42 or R 42 and R 43 or R 43 and R 44 together, i) nitro; ii) nitroso; iii) (O) 2 S(O - )-,M + ;iv) hydroxyl;v) mercapto;vi) (di)(C 1 ~C 6 ) (alkyl)amino; vii) R°-C(X)-X'-; viii) R°-X'-C(X)-; ix) R°-X'-C(X)-X''-, where M + , R°, X, X′ and X″ are as defined above); In particular, R 37 ~R 40 represents a hydrogen atom, R 41 ~R 44 may be the same or different and are a hydroxyl group or (O) 2 S(O - )-, M + group (in the formula, M + is as defined above); R 43 and R 44 taken together form a benzo group, this is preferentially represented by (O) 2 S(O - )-group; However, at least one of rings G, H or I is: - At least one (O) 2 S(O - )-,M' +group (in the formula, M' + represents a cationic counterion); or - at least one (O)CO - -,M' + group (in the formula, M' + represents a cationic counterion); Preferably, at least one sodium sulfonate group; (It is understood that this includes.)

[0183] Examples of dyes of formula (VII) include: Acid Blue 1; Acid Blue 3; Acid Blue 7; Acid Blue 9; Acid Violet 49; Acid Green 3; Acid Green 5, and Acid Green 50.

[0184] f) Xanthene dyes of formula (VIII): [ka] (In formula (VIII), R 45 , R 46 , R 47 and R 48 may be the same or different and represent a hydrogen atom or a halogen atom; R 49 , R 50 , R 51 and R 52 may be the same or different and represent a hydrogen or halogen atom or a group as shown below: - (C 1 ~C 6 ) alkyl; - (C 1 ~C 6 ) alkoxy, (C 1 ~C 6 ) alkylthio; - hydroxyl, mercapto; - Nitro, nitroso; - (O) 2 S(O - )-,M + (In the formula, M+ represents a hydrogen atom or a cationic counter ion); - (O)CO - -,M + (In the formula, M + is as defined above); represents a group selected from In particular, R 53 , R 54 , R 55 and R 48 represents a hydrogen atom or a halogen atom; G is an oxygen or sulfur atom or NR e group (in the formula, R e is as defined above); in particular, G represents an oxygen atom; L is alkoxide O - ,M + ;Thioalkoxide S - ,M + ; or NR f group (in the formula, R f is a hydrogen atom or (C 1 ~C 6 ) alkyl group, M + is as defined above; M + is in particular sodium or potassium); L' is an oxygen or sulfur atom or an ammonium group: N + R f R g (In the formula, R f and R g may be the same or different, and each represents a hydrogen atom, (C 1 ~C 6 ) an alkyl group or an optionally substituted aryl group; in particular L' represents an oxygen atom or one or more alkyl or (O) m S(O - )-,M + Groups (wherein m and M + represents a phenylamino group optionally substituted with (as defined above); Q and Q', which may be the same or different, represent an oxygen or sulfur atom; in particular Q and Q' represent an oxygen atom; M+ is as defined above).

[0185] Examples of dyes of formula (VIII) include: Acid Yellow 73, Acid Red 51, Acid Red 52, Acid Red 87, Acid Red 92, Acid Red 95, and Acid Violet 9.

[0186] g) Indole dyes of formula (IX): [ka] (In formula (IX), R 53 , R 54 , R 55 , R 56 , R 57 , R 58 , R 59 and R 60 may be the same or different and represent a hydrogen atom or a group as shown below: - (C 1 ~C 6 ) alkyl; - (C 1 ~C 6 ) alkoxy, (C 1 ~C 6 ) alkylthio; - hydroxyl, mercapto; - Nitro, nitroso; - R°-C(X)-X'-, R°-X'-C(X)- or R°-X'-C(X)-X''-, where R° represents a hydrogen atom or an alkyl or aryl group; X, X' and X'' may be the same or different and represent an oxygen or sulfur atom or NR, where R represents a hydrogen atom or (C 1 ~C 6 ) represents an alkyl group); - (O) 2 S(O - )-,M + (In the formula, M + represents a hydrogen atom or a cationic counter ion); - (O)CO --,M + (In the formula, M + is as defined above); represents a group selected from: G is an oxygen or sulfur atom or NR e group (in the formula, R e is as defined above); in particular, G represents an oxygen atom; R i and R h may be the same or different, and each represents a hydrogen atom or (C 1 ~C 6 ) represents an alkyl group; However, formula (IX) is: - At least one (O) 2 S(O - )-,M' + group (in the formula, M' + represents a cationic counterion); or - at least one (O)CO - -,M' + group (in the formula, M' + represents a cationic counterion); Preferably, at least one sodium sulfonate group; (It is understood that this includes.)

[0187] As an example of a dye of formula (IX): Acid Blue 74 may be mentioned.

[0188] h) Quinoline dyes of formula (X): [ka] (In formula (X), R 61 is a hydrogen or halogen atom or (C 1 ~C 6 ) represents an alkyl group; R 62 , R 63 and R 64 may be the same or different, and each represents a hydrogen atom or (O) 2 S(O - )-,M + group (in the formula, M+ represents a hydrogen atom or a cationic counterion; or R 61 and R 62 or R 61 and R 64 together form one or more (O) 2 S(O - )-,M + group (in the formula, M + represents a hydrogen atom or a cationic counterion), forming a benzo group optionally substituted with However, the formula (X) contains at least one (O) 2 S(O - )-,M' + group (in the formula, M' + represents a cationic counterion), which is understood to preferably contain at least one sodium sulfonate group.

[0189] As examples of dyes of formula (X), mention may be made of: Acid Yellow 2, Acid Yellow 3 and Acid Yellow 5.

[0190] More specifically, the dyes of formulae (III)-(VIII) useful in the present invention are selected from the following: Acid Red 87 (VIII) (CI 45380); the sodium salt of 2,4-dinitro-1-naphthol-7-sulfonic acid (VI') (CI 10316); Acid Orange 3 (VI) (CI 10383); Acid Yellow 9 / Food Yellow 2 (III) (CI 13015); Direct Red 45 / Food Red 13 (III) (CI 14780); Acid Black 52 (III) (CI 13711); Acid Yellow 36 (III) (CI 13065); the sodium salt of 1-hydroxy-2-(2',4'-xylyl-5-sulfonatoazo)naphthalene-4-sulfonic acid / Food Red 1 (III) (CI 14700); Acid Red 14 / Food Red 3 / Mordant Blue. 79(III)(CI14720);4-hydroxy-3-[(2-methoxy-5-nitrophenyl)diaza]-6-(phenylamino)naphthalene-2-sulfonic acid, sodium salt / Acid Brown 4(III)(CI14805);Acid Orange 7 / Pigment Orange 17 / Solvent Orange 49(III)(CI15510);Food Yellow 3 / Pigment Yellow 104(III)(CI15985);Acid Red 27 / Food Red 9(III)(CI16185);Acid Orange 10 / Food Orange 4(III)(CI16230);Acid Red 44(III)(CI16250);Direct Red 33 / Food Red 12(III)(CI17200);Acid Red 184(III)(CI15685);Acid Violet 3(III)(CI19125);1-Hydroxy-2-(4'-acetamidophenylazo)-8-acetamidonapthalene-3,6-disulfonic acid, sodium salt / Acid Violet 7 / Food Red 11(III)(CI18055);Acid Red 135(III)(CI18130;Acid Yellow 27(IV)(CI19130);Acid Yellow 23 / Food Yellow 4(IV)(CI19140);4'-(sulfonato-2”,4”-dimethyl)-bis-(2,6-phenylazo)-1,3-dihydroxybenzene / Acid Orange 24(III)(CI20170);1-amino-2-(4'-nitrophenylazo)-7-phenylazo-8-hydroxynaphthalene-3,6-disulfonic acid, sodium salt / Acid Black 1(III)(CI20470);(4-((4-methylphenyl)sulfonyloxy)phenylazo)-2,2'-dimethyl-4-((2-hydroxy-5,8-disulfonato)naphthylazo)biphenyl / Acid Red 111(III')(CI23266);Food Black 2(III)(CI27755);1-(4'-sulfonatophenylazo)-4-((2''-hydroxy-3''-acetylamino-6'',8''-disulfonato)naphthylazo)-6-sulfonatonaphthalene(tetrasodium salt) / Food Black 1(III)(CI25440);Acid Blue 9(VII)(CI42090);Acid Violet 43(V)(CI60730);Acid Green 25(V)(CI61570);1-amino-4-cyclohexylamino-9,10-anthraquinone-2-sulfonic acid, sodium salt / Acid Blue 62(V)(CI62045);Acid Blue 78(V)(CI62105);4-hydroxy-3-((2-methoxyphenyl)azo)-1-naphthalenesulfonic acid, sodium salt / Acid Red 4(III)(CI14710);2-Piperidino-5-nitrobenzenesulfonic acid(VI');2(4'-N,N(2"-hydroxyethyl)amino-2'-nitro)anilineethanesulfonic acid(VI');4-β-hydroxyethylamino-3-nitrobenzenesulfonic acid(VI');Acid Violet 49(VII)(CI42640);Acid Blue 7(VII)(CI42080);1,2-Dihydroxy-3-sulfoanthraquinone sodium salt / Mordant Red 3(V)(CI58005);1-amino-9,10-dihydro-9,10-dioxo-4-(phenylamino)-2-anthracenesulfonic acid, sodium salt / Acid Blue 25(V)(CI62055);4-hydroxy-3-((2-methoxyphenyl)azo)-1-naphthalenesulfonic acid, sodium salt / Acid Red 4(III)(CI14710).

[0191] Most of these dyes are described in particular in the Colour Index published by the Society of Dyers and Colourists, PO Box 244, Perkin House, 82 Grattan Road, Bradford, Yorkshire, BD1 2JBN England.

[0192] Particularly the most preferred anionic dyes are those designated in the Color Index by the numbers CI 58005 (monosodium salt of 1,2-dihydroxy-9,10-anthraquinone-3-sulfonic acid), CI 60730 (monosodium salt of 2-[(9,10-dihydro-4-hydroxy-9,10-dioxo-1-anthracenyl)amino]-5-methylbenzenesulfonic acid), CI 15510 (monosodium salt of 4-[(2-hydroxy-1-naphthalenyl)azo]benzenesulfonic acid), CI 15985 (disodium salt of 6-hydroxy-5-[(4-sulfophenyl)azo]-2-naphthalenesulfonic acid), CI 17200 (disodium salt of 5-amino-4-hydroxy-3-(phenylazo)-2,7 ... It is a dye designated by the following formulas: CI 20470 (1-amino-2-(4'-nitrophenylazo)-7-phenylazo-8-hydroxy-3,6-naphthalenedisulfonic acid, disodium salt), CI 42090 (N-ethyl-N-[4-[[4-[ethyl[(3-sulfophenyl)methyl]amino]phenyl](2-sulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-3-sulfobenzenemethanaminium hydroxide, disodium salt, inner salt), CI 61570 (2,2'-[(9,10-dihydro-9,10-dioxo-1,4-anthracenediyl)diimino]bis[5-methylbenzenesulfonic acid], disodium salt).

[0193] Compounds corresponding to the mesomeric or tautomeric forms of structures (III)-(X) can also be used.

[0194] natural dyes The direct dyes may also be selected from natural direct dyes.

[0195] Among the natural direct dyes which may be used according to the invention, mention may be made of lawsone, juglone, alizarin, purpurin, carminic acid, kermesic acid, purpurogallin, protocatechualdehyde, indigo, isatin, curcumin, spinulosin, apigenidin, orcein, brazilin, brazilein, hematein and hematoxylin. Extracts or decoctions containing these natural dyes may also be used, in particular poultices or extracts based on henna dye.

[0196] According to a preferred embodiment, the direct dye is of the formula (IIa 1 ) and (IIa 2 ) triarylmethane direct dyes as well as mixtures thereof: [ka] (In the formula: R 1 , R 2 , R 3 and R 4 may be the same or different and represent a hydrogen atom or a group as shown below, optionally substituted with a hydroxyl group (C 1 ~C 6 ) alkyl; aryl such as phenyl, aryl such as benzyl (C 1 ~C 4 ) alkyl, heteroaryl or heteroaryl (C 1 ~C 4 ) alkyl or two groups R 1 and R 2 and / or R 3 and R 4 together with the nitrogen atom to which they are attached form an optionally substituted heterocycloalkyl group, e.g., morpholino, piperazino, or piperidino; preferably, R 1 , R 2 , R 3 and R 4 may be the same or different, and each represents a hydrogen atom or (C 1 ~C 4 ) represents an alkyl group; R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 , R 13 , R 14 , R 15 and R 16 may be the same or different and represent a hydrogen atom, a halogen atom or one of the following groups: i) hydroxyl; ii) thiol; iii) amino; iv) (di)(C 1 ~C 4 v) (di)arylamino, such as (di)phenylamino; vi) nitro; vii) acylamino (-NR-C(O)R'), where the R groups are hydrogen atoms or C(O) groups optionally carrying at least one hydroxyl group. 1 ~C 4 is an alkyl group, and the R' group is C 1 ~C 2 viii) carbamoyl ((R) 2 NC(O)-), where the R groups may be the same or different and represent a hydrogen atom or a C group optionally carrying at least one hydroxyl group. 1 ~C 4 ix) a carboxylic acid or ester (-OC(O)R') or (-C(O)OR'), where the R' group is a hydrogen atom or a C(O) group optionally having at least one hydroxyl group; 1 ~C 4 is an alkyl group, and the R' group is C 1 ~C 2 x) alkyl, optionally substituted with a hydroxyl group; xi) alkylsulfonylamino (R'SO 2 -NR-) (wherein the R group represents a hydrogen atom or a C group optionally carrying at least one hydroxyl group). 1 ~C 4 represents an alkyl group, and the R' group is C 1 ~C 4 xii) aminosulfonyl ((R)2 N-SO 2 -) (wherein the R groups may be identical or different and represent a hydrogen atom or a C 1 ~C 4 xiii) (C 1 ~C 4 ) alkoxy; and xiv) (C 1 ~C 4 ) alkylthio; or Or, two groups R attached to two adjacent carbon atoms 5 and R 6 and / or R 7 and R 8 and / or R 9 and R 10 and / or R 11 and R 12 and / or R 13 and R 14 and / or R 15 and R 16 together with the carbon atom to which they are attached form a 6-membered fused aryl or heteroaryl ring, preferably a benzo ring, which may be further optionally substituted, preferably an unsubstituted benzo ring; Q - represents an anionic counterion, preferably selected from halides, such as chloride or bromide, and phosphate, to achieve electroneutrality.

[0197] According to this preferred embodiment, the direct dye is preferably HC Blue 15.

[0198] According to one variant of the invention, the direct dye is chosen from cationic direct dyes, preferably from direct dyes carrying a cationic charge in the ring, more particularly from formula (IV-1) as defined above, for example Basic Red 51.

[0199] The direct dye is preferably selected from cationic direct dyes, more preferentially those of formula (IIa 1 ) and (IIa2 ), the triarylmethane direct dyes of formula (IV-1) as defined above and mixtures thereof, and more preferentially from HC Blue 15, Basic Red 51 and mixtures thereof.

[0200] The direct dyes may be present in the composition in a total content ranging from 0.001% to 5% by weight, preferably from 0.01% to 3% by weight, more preferentially from 0.1% to 1% by weight and even more preferentially from 0.1% to 0.8% by weight relative to the total weight of the composition.

[0201] According to a preferred embodiment, the composition comprises colorants in a total content of less than 0.1% by weight, preferably less than 0.01% by weight and more preferentially less than 0.001% by weight relative to the total weight of the composition.

[0202] According to a more preferred embodiment, the composition is free of colorants.

[0203] Additional basifying agents The compositions may also contain one or more additional basifying agents in addition to the carbonates, bicarbonates and silicates defined above.

[0204] The additional basifying agents may be inorganic or organic. They include i) aqueous ammonia, ii) alkanolamines such as monoethanolamine, diethanolamine, triethanolamine and their derivatives, iii) oxyethylenated and / or oxypropylenated ethylenediamines, iv) inorganic or organic hydroxides, v) amino acids, preferably basic amino acids such as arginine, lysine, ornithine, citrulline and histidine, and vi) amines of the following formula (II): [ka] (In the formula: W is in particular a hydroxyl group or a C 1 ~C 4 Divalent (C 1 ~C8 ) an alkylene group, preferably a propylene group; - R a , R b , R c and R d may be the same or different, and are a hydrogen atom or C 1 ~C 4 Alkyl or C 1 ~C 4 (representing a hydroxyalkyl group); vii) and mixtures thereof.

[0205] The inorganic or organic hydroxide is preferably selected from i) alkali metal hydroxides, such as sodium hydroxide or potassium hydroxide, ii) alkaline earth metal hydroxides, iii) transition metal hydroxides, for example hydroxides of metals of groups III, IV, V and VI, iv) lanthanide hydroxides or actinide hydroxides.

[0206] If an additional basifying agent is present, it preferably represents from 0.001% to 20% by weight, more preferentially from 0.005% to 16% by weight, relative to the total weight of the composition.

[0207] According to a preferred embodiment, the composition according to the invention does not comprise additional basifying agents selected from aqueous ammonia and / or alkanolamines.

[0208] Acidifier The composition may additionally comprise one or more acidifying agents.

[0209] Among the acidifying agents, examples which may be mentioned are inorganic acids, such as hydrochloric acid, (ortho)phosphoric acid, boric acid, nitric acid or sulfuric acid, or organic acids, such as compounds containing at least one carboxylic acid group, such as acetic acid, tartaric acid, citric acid or lactic acid, compounds containing one sulfonic acid group, compounds containing one phosphonic acid group or compounds containing one phosphoric acid group.

[0210] pH of the composition The pH of the composition according to the invention is preferably 11 or less, preferably 10.5 or less, preferably 10 or less.

[0211] The pH of the composition according to the invention may vary between 8 and 11, preferably between 8 and 10.5 and more preferentially between 8 and 10.

[0212] According to a particularly preferred embodiment, the pH of the composition according to the invention varies between 8.3 and 10.

[0213] Sequestering Agents The composition according to the invention optionally also contains one or more sequestering agents. Examples of sequestering agents that can be used in the present invention include N,N-dicarboxymethyl-L-glutamic acid and tetrasodium N,N-bis(carboxymethyl)-L-glutamate.

[0214] Other characteristics of the composition The composition comprises water in a content preferably ranging from 5% to 99% by weight, more preferentially from 5% to 80% by weight, relative to the total weight of the composition.

[0215] The composition may further comprise at least one organic solvent.

[0216] The term "organic solvent" refers to an organic substance that can dissolve other substances without causing chemical alteration therein.

[0217] The organic solvent may be, for example, lower C 2 ~C 4 Mention may be made of alkanols, such as ethanol and isopropanol; polyols and polyol ethers, such as 2-butoxyethanol, propylene glycol, propylene glycol monomethyl ether, diethylene glycol monoethyl ether or diethylene glycol monomethyl ether, as well as aromatic alcohols, such as benzyl alcohol or phenoxyethanol, and mixtures thereof.

[0218] The organic solvent is preferably present in a proportion ranging from 0.1% to 40% by weight, more preferentially from 1% to 30% by weight, and even more preferentially from 1% to 25% by weight, relative to the total weight of the composition.

[0219] The composition according to the invention can be provided in liquid form, in serum form, in thickened form, in particular in the form of a gel, cream, wax or paste, or in foam form.

[0220] The compositions according to the invention may also comprise one or more additional compounds selected from nonionic, anionic, cationic or amphoteric surfactants; cationic, anionic, nonionic or zwitterionic, associative or non-associative thickening polymers of natural or synthetic origin; silicones in the form of oils, gums or resins; or non-silicone oils of vegetable, mineral or synthetic origin; UV filters; fillers such as pearlescent agents and metal oxides such as titanium dioxide, clays; fragrances; deflocculants; vitamins; and preservatives.

[0221] Process for lightening keratin fibres According to a second aspect, the subject of the invention is a method for lightening keratinous fibres, comprising applying to the keratinous fibres a composition comprising components i) to iv) as defined above.

[0222] Process for simultaneously bleaching and dyeing keratin fibres - Patents.com According to a third aspect, the subject of the invention is a method for simultaneously bleaching and dyeing keratinous fibers, comprising applying a composition comprising components i) to iv) as defined above and v) one or more colorants chosen from direct dyes, oxidative dyes and mixtures thereof.

[0223] Additional features of the process for lightening or simultaneously bleaching and dyeing keratin fibres The composition is applied in particular to wet or dry keratinous fibres.

[0224] Preferably, the keratinous fibers are dark colored keratinous fibers.

[0225] The term "dark keratinous fibers" means keratinous fibers having a shade of less than or equal to 6 (dark blonde), preferably less than or equal to 4 (chestnut brown).

[0226] The composition may advantageously be applied to the keratinous fibres in an amount ranging from 0.1 g to 20 g of composition per gram of keratinous fibre.

[0227] The composition is left in place on the fibers for a period generally ranging from 1 minute to 1 hour, preferably from 5 minutes to 60 minutes.

[0228] By way of example, the composition may be left in place on the fabric for 50 minutes.

[0229] The composition can be left in place on the fabric in an occlusive system, non-limiting examples of which can include envelope-type occlusive systems made from aluminum foil or plastic film, or hair caps with or without holes.

[0230] The temperature during the lightening method is between ambient temperature (15°C to 25°C) and 80°C, preferably between ambient temperature and 60°C.

[0231] As an example, the temperature during the lightening process is 33°C.

[0232] Once the treatment is complete, the keratinous fibers are optionally rinsed with water, optionally washed with shampoo, then rinsed with water, and then dried or left to dry naturally.

[0233] The drying step can be performed using absorbent paper, a hair dryer or a styling hood.

[0234] The composition used in the method according to the invention is preferably prepared by mixing at least two compositions, the mixing of said at least two compositions being preferably carried out in situ before applying the compositions to the keratinous fibres.

[0235] According to a preferred embodiment, the composition used in the method according to the invention comprises: A composition (A) comprising: - one or more chemical oxidizing agents selected from hydrogen peroxide, hydrogen peroxide generating systems other than persalts and mixtures thereof as defined above, preferably hydrogen peroxide; - optionally one or more amphoteric or zwitterionic compounds as defined above; A composition (A) comprising: A composition (B) comprising: - one or more compounds selected from the carbonates, carbonate-generating systems, bicarbonates, bicarbonate-generating systems and mixtures thereof as defined above, preferably selected from the carbonates, bicarbonates and mixtures thereof as defined above; - one or more silicates as defined above; - optionally one or more colorants selected from direct dyes, oxidative dyes and mixtures thereof; - optionally one or more amphoteric or zwitterionic compounds as defined above; A composition (B) comprising: Optional composition (C) comprising: - one or more colorants chosen from direct dyes, oxidation dyes and mixtures thereof; - optionally one or more amphoteric or zwitterionic compounds as defined above; A composition (C) comprising: and however: - at least one of compositions (A) and (B), preferably composition (B), comprises one or more amphoteric or zwitterionic compounds as defined above; or - if composition (C) is present, it is understood that at least one of compositions (A), (B) and (C), preferably at least one of compositions (B) and (C), comprises one or more amphoteric or zwitterionic compounds as defined above.

[0236] When the process according to the invention is a process for lightening keratin fibres, the composition used in this process is preferably: A composition (A) comprising: - one or more chemical oxidizing agents selected from hydrogen peroxide, hydrogen peroxide generating systems other than persalts and mixtures thereof, as defined above, preferably hydrogen peroxide; - optionally one or more amphoteric or zwitterionic compounds as defined above; A composition (A) comprising: A composition (B) comprising: - one or more compounds selected from the carbonates, carbonate-generating systems, bicarbonates, bicarbonate-generating systems and mixtures thereof as defined above, preferably selected from the carbonates, bicarbonates and mixtures thereof as defined above; - one or more silicates as defined above; - optionally one or more amphoteric or zwitterionic compounds as defined above; A composition (B) comprising: and However, it is understood that at least one of compositions (A) and (B), preferably composition (B), comprises one or more amphoteric or zwitterionic compounds as defined above.

[0237] If the process according to the invention is a process for simultaneously bleaching and dyeing keratin fibres, the composition used in this process comprises: A composition (A) comprising: - one or more chemical oxidizing agents selected from hydrogen peroxide, hydrogen peroxide generating systems other than persalts and mixtures thereof as defined above, preferably hydrogen peroxide; - optionally one or more amphoteric or zwitterionic compounds as defined above; A composition (A) comprising: A composition (B) comprising: - one or more compounds selected from the carbonates, carbonate-generating systems, bicarbonates, bicarbonate-generating systems and mixtures thereof as defined above, preferably selected from the carbonates, bicarbonates and mixtures thereof as defined above; - one or more silicates as defined above; - optionally one or more colorants selected from direct dyes, oxidative dyes and mixtures thereof; - optionally one or more amphoteric or zwitterionic compounds as defined above; A composition (B) comprising: can be obtained by mixing However, it is understood that at least one of compositions (A) and (B), preferably composition (B), comprises one or more amphoteric or zwitterionic compounds as defined above.

[0238] If the process according to the invention is a process for simultaneously bleaching and dyeing keratin fibres, the composition used in this process comprises: A composition (A) comprising: - one or more chemical oxidizing agents selected from hydrogen peroxide, hydrogen peroxide generating systems other than persalts and mixtures thereof as defined above, preferably hydrogen peroxide; - optionally one or more amphoteric or zwitterionic compounds as defined above; A composition (A) comprising: A composition (B) comprising: - one or more compounds selected from the carbonates, carbonate-generating systems, bicarbonates, bicarbonate-generating systems and mixtures thereof as defined above, preferably selected from the carbonates, bicarbonates and mixtures thereof as defined above; - one or more silicates as defined above; - optionally one or more colorants selected from direct dyes, oxidative dyes and mixtures thereof; - optionally one or more amphoteric or zwitterionic compounds as defined above; A composition (B) comprising: A composition (C) comprising: - one or more colorants chosen from direct dyes, oxidation dyes and mixtures thereof; - optionally one or more amphoteric or zwitterionic compounds as defined above; A composition (C) comprising: can be obtained by mixing However, it is understood that at least one of compositions (A), (B) and (C), preferably at least one of compositions (B) and (C), comprises one or more amphoteric or zwitterionic compounds as defined above.

[0239] Preferably, when the composition according to the invention is obtained by mixing the compositions (A), (B) and (C) defined above, composition (B) does not comprise a colorant chosen from direct dyes, oxidative dyes and mixtures thereof.

[0240] Preferably, at least one of the compositions (A) or (B), or at least one of the three compositions (A) or (B) or (C), is aqueous. More preferentially, composition (A) is aqueous.

[0241] According to a particular embodiment, composition (B) is anhydrous.

[0242] According to a particular embodiment, composition (A) is aqueous, composition (B) is anhydrous and composition (C), if present, is aqueous.

[0243] The term "aqueous composition" means a composition which comprises at least 2% by weight of water, preferably at least 5% by weight of water, more preferentially at least 10% by weight of water and even more advantageously more than 20% by weight of water.

[0244] The term "anhydrous composition" means a composition containing less than 2% by weight of water, preferably less than 0.5% by weight of water, and more preferentially free of water. Where appropriate, such small amounts of water may be introduced in particular by raw materials of the composition which may contain residual amounts of water.

[0245] The composition used in the method according to the invention has the same level of lightness L lightened using a composition containing one or more persulfates. * Measured on keratin fibers with * value, b * It is possible to achieve a lightening of keratin fibres, characterized by a low b value, preferably 10% lower and more preferentially 15% lower, * and L * The value is CIE L * a * b * It is a measurement in the system.

[0246] Preferably, b * and L * The value is measured according to the color evaluation method described in the examples.

[0247] use According to a fourth aspect, the subject of the invention is the use of a composition comprising components i) to iv) as defined above for lightening keratinous fibres, preferably for lightening keratinous fibres whilst at the same time reducing their yellowness.

[0248] According to a fifth aspect, the subject of the invention is the use of a composition comprising components i) to iv) as defined above and v) one or more colorants chosen from direct dyes, oxidative dyes and mixtures thereof, for simultaneously bleaching and dyeing keratinous fibers.

[0249] Multi-compartment device (kit) According to a sixth aspect, the subject of the present invention is a device (kit) comprising several separated compartments, comprising: A first section having: - one or more chemical oxidizing agents selected from hydrogen peroxide, hydrogen peroxide generating systems other than persalts and mixtures thereof as defined above, preferably hydrogen peroxide; - optionally one or more amphoteric or zwitterionic compounds as defined above; A first compartment containing a composition (A) comprising: A second section comprising: - one or more compounds selected from the carbonates, carbonate-generating systems, bicarbonates, bicarbonate-generating systems and mixtures thereof as defined above, preferably selected from the carbonates, bicarbonates and mixtures thereof as defined above; - one or more silicates as defined above; - optionally one or more colorants selected from direct dyes, oxidative dyes and mixtures thereof; - optionally one or more amphoteric or zwitterionic compounds as defined above; A second compartment containing a composition (B) comprising: an optional third section comprising: - one or more colorants chosen from direct dyes, oxidative dyes and mixtures thereof; - optionally one or more amphoteric or zwitterionic compounds as defined above; A third compartment containing a composition (C) comprising: Equipped with however: - at least one of compositions (A) and (B), preferably composition (B), comprises one or more amphoteric or zwitterionic compounds as defined above; or - when composition (C) is present, it is understood that at least one of compositions (A), (B) and (C), preferably at least one of compositions (B) and (C), comprises one or more amphoteric or zwitterionic compounds as defined above. EXAMPLES

[0250] The following examples will enable a clearer understanding of the present invention, but are not intended to limit its nature, and in the following examples, unless otherwise specified, all amounts are expressed as percentages by weight based on the total weight of the composition.

[0251] How to evaluate color In these examples, the color of the hair strands was measured using a Minolta CM3610A Spectrophotometer (illuminant D65) as a colorimeter, using the CIE L * a * b * was evaluated in the system.

[0252] This L * a * b * In the system, L * represents the lightness of the color, and a * represents the hue along the green / red axis, and b * represents the hue along the blue / yellow axis. * The higher the value, the brighter the color. * The higher the value of b, the stronger the redness. * The higher the value, the stronger the blueness.

[0253] Example 1 (Comparative) The following compositions C1-C12 were prepared and then applied according to the application procedures described below.

[0254] [Table 1]

[0255] [Table 2]

[0256] Application procedure 10 g of each of compositions C1 to C12 is applied to 12 1 g locks of Caucasian HT4 hair on a hot plate maintained at a temperature of 33° C. The whole is covered with cellophane film for 50 minutes.

[0257] The tresses are then rinsed, washed with a standard shampoo, rinsed again and then dried.

[0258] Color measurement The color measurement results are summarized in the following table.

[0259] [Table 3]

[0260] The results show that the comparative composition containing persulfate has a relatively high L * Although a good level of lightening, characterized by a high b value, can be achieved, the resulting color shades tend to be * 4 shows that the color has a significant yellow component characterized by a value of 0.01.

[0261] Example 2 The following compositions C13 to C21 were prepared and then applied according to the application procedures described below.

[0262] [Table 4]

[0263] [Table 5]

[0264] Application procedure 10 g of each of compositions C13 to C21 is applied to 9 1 g locks of Caucasian HT4 hair on a hot plate maintained at a temperature of 33° C. The whole is covered with cellophane film for 50 minutes.

[0265] The tresses are then rinsed, washed with a standard shampoo, rinsed again and then dried.

[0266] Color measurement The color measurement results are summarized in the following table.

[0267] [Table 6]

[0268] This result shows that the composition according to the present invention has a relatively high L * It has been shown that it is possible to achieve a good level of lightening, characterized by a value of lightness L. Furthermore, as shown in FIG. * At the same level, the b is higher than the persulfate-based comparative composition of Example 1. * It is characterized by a low value.

[0269] Example 3 The following compositions D1 and D2 were prepared and then applied according to the application procedure described below.

[0270] [Table 7]

[0271] Application procedure 10 g of each of compositions D1 to D2 are applied to two 1 g locks of Caucasian dark HT4 hair on a hot plate maintained at a temperature of 33° C. The whole is left in the open air for 50 minutes.

[0272] The tresses are then rinsed, washed with a standard shampoo, rinsed again and then dried.

[0273] result

[0274] [Table 8]

[0275] The composition according to the invention makes it possible to simultaneously bleach and dye dark hair in one step, making it possible to obtain intense colors.

[0276] Example 4 The following compositions E1 and E2 were prepared and then applied according to the application procedures described below.

[0277] [Table 9]

[0278] Application procedure 10 g of each of compositions E1 to E2 are applied to two locks of 1 g of Caucasian dark HT4 hair on a hot plate maintained at a temperature of 33° C. The whole is left in the open air for 50 minutes.

[0279] The tresses are then rinsed, washed with a standard shampoo, rinsed again and then dried.

[0280] result:

[0281] [Table 10]

[0282] The composition according to the invention makes it possible to simultaneously bleach and dye dark hair in one step, making it possible to obtain intense colors.

Claims

1. i) one or more chemical oxidants selected from hydrogen peroxide, hydrogen peroxide generating systems other than persalts, and mixtures thereof; ii) one or more compounds selected from carbonates, carbonate generating systems, bicarbonates, bicarbonate generating systems and mixtures thereof, preferably from carbonates, bicarbonates and mixtures thereof; iii) one or more silicates; and iv) one or more amphoteric or zwitterionic compounds selected from: phospholipids such as lecithin, amino acids, amphoteric or zwitterionic surfactants, salts thereof, optical isomers thereof, geometric isomers thereof, tautomers thereof, solvates thereof and mixtures thereof; A composition comprising: A composition comprising persulfates in a total content of less than 10% by weight relative to the total weight of said composition.

2. The composition of claim 1 , wherein the chemical oxidizing agent is hydrogen peroxide.

3. 3. Composition according to claim 1 or 2, wherein said chemical oxidizing agents are present in the composition in a total content ranging from 1% to 12% by weight, preferably ranging from 3% to 9% by weight and more preferentially ranging from 3.5% to 8.5% by weight relative to the total weight of the composition.

4. 4. The composition according to any one of claims 1 to 3, wherein said compounds ii) are present in the composition in a total content ranging from 0.01% to 20% by weight, preferably ranging from 1% to 15% by weight, more preferentially ranging from 2% to 15% by weight and even more preferentially ranging from 4% to 15% by weight relative to the total weight of the composition.

5. The composition according to any one of claims 1 to 4, wherein said compound ii) is selected from carbonates, carbonate-generating systems and mixtures thereof, preferably carbonates.

6. 6. Composition according to any one of claims 1 to 5, wherein the carbonate and / or the carbonate-generating system are present in the composition in a total content ranging from 0.01% to 20% by weight, preferably in the range from 1% to 20% by weight and more preferentially in the range from 1% to 10% by weight relative to the total weight of the composition.

7. The carbonate is: - alkali metal carbonates; - alkaline earth metal carbonates; - lanthanide carbonates; transition metal carbonates; - bismuth carbonate; - cadmium carbonate; - thallium carbonate; - zinc carbonate; - Formula (N ＋ R １ R ２ R ３ R ４ ) ２ , CO ３ ２－ (In the formula, R １ , R ２ , R ３ and R ４ each independently represents a hydrogen atom or optionally substituted with a hydroxyl group (C １ ~C ４ ) an alkyl group; - guanidine carbonate; - Mixtures of these is selected from 7. The composition according to any one of claims 1 to 6, wherein the carbonate is preferably selected from sodium carbonate, potassium carbonate, caesium carbonate, lithium carbonate, magnesium carbonate, calcium carbonate, barium carbonate, strontium carbonate, cerium carbonate, lanthanum carbonate, yttrium carbonate, copper(II) carbonate, manganese carbonate, nickel carbonate, silver carbonate, zirconium carbonate, bismuth carbonate, cadmium carbonate, thallium carbonate, zinc carbonate, ammonium carbonate, guanidine carbonate, tetraethylammonium carbonate and mixtures thereof, more preferentially from sodium carbonate, potassium carbonate, caesium carbonate, magnesium carbonate, calcium carbonate, cerium carbonate, manganese carbonate, zinc carbonate, ammonium carbonate, guanidine carbonate and mixtures thereof, even more preferentially from sodium carbonate, potassium carbonate, magnesium carbonate, calcium carbonate, ammonium carbonate and mixtures thereof; and most preferentially, the carbonate is ammonium carbonate.

8. The composition according to any one of claims 1 to 7, wherein said compound ii) is selected from bicarbonates, bicarbonate generating systems and mixtures thereof, preferably from bicarbonates.

9. 9. The method according to any one of claims 1 to 8, wherein the bicarbonate and / or the bicarbonate-generating system are present in the composition in a total content ranging from 0.01% to 20% by weight, preferably in the range from 1% to 15% by weight, more preferentially in the range from 2% to 15% by weight and even more preferentially in the range from 4% to 15% by weight, relative to the total weight of the composition.

10. The bicarbonate is - alkali metal hydrogen carbonates; - alkaline earth metal hydrogen carbonates; - Formula N ＋ R １ R ２ R ３ R ４ , HCO ３ － (In the formula, R １ , R ２ , R ３ and R ４ each independently represents a hydrogen atom or optionally substituted with a hydroxyl group (C １ ~C ４ ) an alkyl group; - aminoguanidine bicarbonate; - Mixtures of these is selected from 10. The composition according to any one of claims 1 to 9, preferably selected from sodium bicarbonate, potassium bicarbonate, lithium bicarbonate, caesium bicarbonate, calcium bicarbonate, magnesium bicarbonate, ammonium bicarbonate, choline bicarbonate, triethylammonium bicarbonate, aminoguanidine bicarbonate and mixtures thereof, more preferentially from sodium bicarbonate, potassium bicarbonate, caesium bicarbonate, calcium bicarbonate, magnesium bicarbonate, ammonium bicarbonate and mixtures thereof, more preferentially from sodium bicarbonate, potassium bicarbonate, caesium bicarbonate, calcium bicarbonate, magnesium bicarbonate, ammonium bicarbonate and mixtures thereof, even more preferentially from sodium bicarbonate, potassium bicarbonate, ammonium bicarbonate and mixtures thereof; most preferentially, said bicarbonate is ammonium bicarbonate.

11. 11. The composition according to any one of claims 1 to 10, wherein the silicate is chosen from alkali metal silicates, alkaline earth metal silicates, aluminium silicates, trimethylammonium silicates and mixtures thereof, preferably from sodium silicate, potassium silicate, calcium silicate, aluminium silicate, trimethylammonium silicate and mixtures thereof, more preferentially from sodium silicate and even more preferentially from compounds with the INCI name Sodium Silicate and / or Sodium Metasilicate.

12. Composition according to any one of the preceding claims, wherein said silicates are present in the composition in a total content ranging from 1% to 40% by weight, preferably ranging from 2% to 35% by weight, more preferentially ranging from 3% to 35% by weight and even more preferentially ranging from 4% to 20% by weight relative to the total weight of the composition.

13. Composition according to any one of claims 1 to 12, in which the weight ratio of the total amount of bicarbonates and / or bicarbonate-generating systems to the total amount of silicates is between 0.00025 and 20, preferably between 0.02 and 7.5 and more preferentially between 0.05 and 5.

14. Composition according to any one of claims 1 to 13, in which the mass ratio of the total amount of bicarbonate and / or bicarbonate-generating system / the total amount of chemical oxidizing agent is between 0.0008 and 20, preferably between 0.11 and 5 and more preferentially between 0.2 and 4.

2.

15. Composition according to any one of the preceding claims, in which the mass ratio of the total amount of carbonates and / or carbonate-generating systems to the total amount of bicarbonates and / or bicarbonate-generating systems is between 0.0005 and 2000, preferably between 0.06 and 20 and more preferentially between 0.06 and 5.

16. The amphoteric or zwitterionic compound is selected from the following compounds 1 to 28, salts thereof, optical isomers thereof, geometric isomers thereof, tautomers thereof, solvates thereof, and mixtures thereof: 【Chemistry 1-1】 【Chemistry 1-2】 【Chemistry 1-3】 【Chemistry 1-4】 The composition according to any one of claims 1 to 15, which is preferably selected from compounds 2, 10, 12, 15, 17, 18, 24, 27 and 28, their salts, their optical isomers, their geometric isomers, their tautomers, their solvates and mixtures thereof, and more preferentially selected from compounds 2, 10, 12, 15, 17, 18, 24 and 27, their salts, their optical isomers, their geometric isomers, their tautomers, their solvates and mixtures thereof.

17. 17. The composition according to any one of the preceding claims, wherein the amphoteric or zwitterionic compound is present in the composition in a total content ranging from 0.01% to 50% by weight, preferably ranging from 1% to 30% by weight and more preferentially ranging from 2% to 15% by weight relative to the total weight of the composition.

18. Composition according to any one of the preceding claims, comprising a total content of magnesium carbonate of less than 5% by weight, preferably less than 1% by weight, more preferentially less than 0.1% by weight, even more preferentially less than 0.01% by weight and most preferentially less than 0.001% by weight, and better still, the composition is free of magnesium carbonate.

19. Composition according to any one of the preceding claims, comprising a total content of persulfates of less than 5% by weight, preferably less than 1% by weight, more preferentially less than 0.1% by weight, even more preferentially less than 0.01% by weight and most preferentially less than 0.001% by weight, and better still, the composition is free of persulfates.

20. The composition according to any one of the preceding claims, wherein the pH of said composition varies in the range from 8 to 11, preferably from 8 to 10.5, more preferentially from 8 to 10, and even more preferentially from 8.3 to 10.

21. The composition according to any one of the preceding claims, wherein the composition comprises one or more colouring agents selected from direct dyes, oxidative dyes and mixtures thereof.

22. 21. The composition according to any one of claims 1 to 20, wherein the composition comprises colorants in a total content of less than 0.1% by weight, preferably less than 0.01% by weight and more preferentially less than 0.001% by weight relative to the total weight of the composition, and even more preferentially the composition is free of colorants.

23. A method for lightening keratinous fibres, comprising applying to said keratinous fibres a composition according to any one of claims 1 to 20 or claim 22.

24. The compositions were lightened using a composition containing one or more persulfates to achieve the same level of lightness L ＊ b measured on keratin fibers having ＊ value, b ＊ It makes it possible to achieve a lightening of keratin fibres, characterized by a low value of b, preferably 10% lower and more preferentially 15% lower, ＊ and L ＊ The values ​​are CIE L ＊ a ＊ b ＊ The method of claim 23, which is a measurement in a system.

25. 22. A method for simultaneously bleaching and dyeing keratinous fibers, comprising applying a composition according to claim 21 to said keratinous fibers.

26. The method according to any one of claims 23 to 25, wherein the composition according to any one of claims 1 to 22 comprises: A composition (A) comprising: - one or more chemical oxidizing agents selected from hydrogen peroxide, hydrogen peroxide generating systems other than persalts and mixtures thereof according to claim 1 or 2; - optionally one or more amphoteric or zwitterionic compounds according to claim 1 or 16; A composition (A) comprising: A composition (B) comprising: - one or more compounds selected from carbonates, carbonate-generating systems, bicarbonates, bicarbonate-generating systems and mixtures thereof according to claims 1, 7 or 10; - one or more silicates according to claim 1 or 11; - optionally one or more colorants chosen from direct dyes, oxidative dyes and mixtures thereof; - optionally one or more amphoteric or zwitterionic compounds according to claim 1 or 16; A composition (B) comprising: An optional composition (C) comprising: one or more colorants chosen from direct dyes, oxidative dyes and mixtures thereof; - optionally one or more amphoteric or zwitterionic compounds according to claim 1 or 16; A composition (C) comprising: and however: at least one of compositions (A) and (B), preferably composition (B), comprises one or more amphoteric or zwitterionic compounds according to claims 1 or 16; or - if composition (C) is present, it is understood that at least one of compositions (A), (B) and (C), preferably at least one of compositions (B) and (C), comprises one or more amphoteric or zwitterionic compounds according to claim 1 or 16.

27. Use of a composition according to any one of claims 1 to 20 or claim 22 for lightening keratin fibres, preferably for lightening keratin fibres whilst simultaneously reducing their yellowness.

28. 22. Use of a composition according to claim 21 for simultaneously bleaching and dyeing keratin fibres.

29. 1. A device comprising multiple compartments: a first compartment containing the composition (A) according to claim 26; and a second compartment containing the composition (B) according to claim 26; an optional third compartment containing the composition (C) according to claim 26; Equipped with however: at least one of compositions (A) and (B), preferably composition (B), comprises one or more amphoteric or zwitterionic compounds according to claims 1 or 16; or - when composition (C) is present, it is understood that at least one of compositions (A), (B) and (C), preferably at least one of compositions (B) and (C), comprises one or more amphoteric or zwitterionic compounds according to claim 1 or 16.

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