Aerosol devices based on anionic fixative polymers, direct dyes, monoalcohols and dimethyl ether

Abstract

The present invention provides - a) i) at least one anionic fixing polymer; ii) at least one direct dye, and iii) at least one C2-C4 monoalcohol At least one composition comprising: b) at least one propellant selected from dimethyl ether wherein the composition comprises less than 5% by weight of water, based on the total weight of the composition; and - a means for delivering the composition; The present invention relates to an aerosol device comprising: The present invention also relates to a method for neutralizing the yellow and / or orange hue of previously bleached and / or natural keratin fibers.

Description

[Technical Field]

[0001] The present invention relates to an aerosol device comprising a composition for treating keratinous fibers such as hair, comprising at least one anionic fixative polymer, at least one blue, green or purple direct dye, at least one C2-C4 monoalcohol and at least dimethyl ether, and also to a treatment method using said composition. [Background technology]

[0002] It is well known that hair can become sensitive or weak to varying degrees by the action of atmospheric agents, in particular light, and by the action of certain cosmetic treatments such as shampooing.

[0003] It is also known that light has a tendency to attack the natural color of hair, and the artificial color of dyed or bleached hair, causing the hair color to gradually fade or change to an unattractive or undesirable shade.

[0004] Indeed, bleached hair is often weaker and more porous, and therefore tends to lose pigmentation over time and develop an unsightly yellow / orange hue. Similarly, light-colored hair, especially white or gray hair, can have an unsightly yellow / orange hue. Summary of the Invention [Problem to be solved by the invention]

[0005] It is therefore an object of the present invention to develop a device for treating keratinous fibers, such as hair, that allows for a rapid and uniform application of a composition to the keratinous fibers, thereby resulting in a neutralization of the yellow and / or orange tones of the hair throughout the treated hair, and that has good cosmetic properties in terms of hair softness or suppleness, as well as good hair styling and / or style retention properties. Furthermore, the device according to the invention results in a treatment that does not or only little transfers to the skin or fabrics after drying. [Means for solving the problem]

[0006] The purpose of this is to ensure that the subject matter is - a) i) at least one anionic fixing polymer; ii) at least one direct dye from among blue, green or violet dyes, and iii) at least one C2-C4 monoalcohol At least one composition comprising: b) at least one propellant selected from dimethyl ether at least one pressurized vessel comprising: - a means for delivering the composition; This is achieved by the present invention, which is an aerosol device comprising:

[0007] Another subject of the present invention is a method for neutralizing yellow and / or orange tones in keratinous fibers, such as hair, that have previously been bleached and / or are naturally white, comprising applying to said fibers a composition delivered from a device as defined above. DETAILED DESCRIPTION OF THE INVENTION

[0008] By using the aerosol device according to the present invention, uniform color neutralization can be achieved quickly and easily on keratin fibers such as hair. In addition, the hair feels softer and more flexible and does not leave any residue after application. This treatment has the advantage of being a leave-on treatment and does not require the use of water.

[0009] Furthermore, the composition has good transfer resistance and exhibits low adhesion to substrates, such as skin and / or clothing, that come into contact with the composition.

[0010] The present invention also relates to a method for styling hair and / or for holding a hairstyle, comprising the step of applying a composition, which is a leave-on composition, to dry or wet hair. Preferably, the composition is applied to keratinous fibers, such as light-colored (blonde or white) hair, which is natural or bleached.

[0011] Another subject of the invention is the use of the composition for styling the hair and / or holding the hairstyle.

[0012] The term "neutralization of yellow and / or orange tones" refers in particular to the parameter a of the CIELab colorimetric system. * (green-red axis) and / or b * By varying the value of the (blue-yellow axis) it is intended to mean masking unsightly yellow and / or orange tones, i.e. modifying the color to be more natural (closer to natural blonde or white).

[0013] The invention is not limited to the illustrated embodiments, and features of the various embodiments can be combined in particular in variations not illustrated.

[0014] The term "at least one" means one or more.

[0015] The aerosol device a) i) at least one anionic fixing polymer; ii) at least one direct dye from among blue, green or violet dyes, and iii) at least one C2-C4 monoalcohol At least one composition comprising: b) at least one propellant selected from dimethyl ether At least one pressurized vessel comprising: Including, The composition comprises less than 5% by weight of water, based on the total weight of the composition.

[0016] The composition a) according to the invention is preferably a cosmetic composition for treating keratinous fibers such as hair.

[0017] In the following, if a propellant is present in composition a), the total mass of the composition corresponds to the total mass of composition a), if a propellant is not present in composition a), the total mass of the composition corresponds to the mass of composition a) + the mass of the propellant.

[0018] Anionic Fixing Polymers: The composition according to the invention comprises at least one anionic fixing polymer.

[0019] The term "fixative polymer" means any polymer that is capable of styling or holding hair in a given shape.

[0020] Examples of anionic fixing polymers include polymers containing carboxyl groups, groups derived from sulfonic acid or phosphoric acid, and having a number average molecular weight of 500 to 5,000,000.

[0021] The carboxyl group may be an unsaturated monocarboxylic or dicarboxylic acid monomer, such as one of formula (I): [ka] (In the formula, n is an integer from 0 to 10, A represents a methylene group, optionally, when n is greater than 1, linked to a carbon atom of the unsaturated group or to an adjacent methylene group via a heteroatom such as oxygen or sulfur; R1 represents a hydrogen atom, a phenyl group, or a benzyl group; R2 represents a hydrogen atom, an alkyl group containing 1 to 4 carbon atoms, or a carboxyl group; R3 is provided by a hydrogen atom, an alkyl group containing 1 to 4 carbon atoms, a -CH2-COOH group, a phenyl group or a benzyl group.

[0022] In the above formula (I), the alkyl group containing 1 to 4 carbon atoms can in particular represent a methyl group and an ethyl group.

[0023] Preferred anionic fixed polyols containing carboxyl or sulfonic acid groups are as follows:

[0024] A) Copolymers of acrylic acid or methacrylic acid or their salts, including copolymers of acrylic acid and acrylamide, and methacrylic acid / acrylic acid / ethyl acrylate / methyl methacrylate copolymers, in particular Amerhold DR 25 sold by Amerchol, and sodium salts of polyhydroxycarboxylic acids. Mention may also be made of methacrylic acid / ethyl acrylate copolymers, especially in aqueous dispersion, such as Luviflex Soft and Luvimer MAE sold by BASF.

[0025] B) Copolymers of acrylic acid or methacrylic acid with monoethylenic monomers, such as ethylene, styrene, vinyl esters, and acrylic or methacrylic acid esters, optionally grafted onto polyalkylene glycols, such as polyethylene glycol, and optionally crosslinked. Polymers of this type are described, inter alia, in French Patent No. 1,222,944 and German Patent Application No. 2,330,956, while copolymers of this type, which contain optionally N-alkylated and / or hydroxyalkylated acrylamide units in the chain, are described, inter alia, in Luxembourg Patent Applications Nos. 75,370 and 75,371. Mention may also be made of copolymers of acrylic acid with C1-C4 alkyl esters of methacrylic acid.

[0026] Another anionic fixing polymer in this class is the butyl acrylate / acrylic acid / methacrylic acid branched block anionic polymer sold by Lubrizol under the name Fixate G-100L (INCI name AMP - Acrylates / Allyl Methacrylate Copolymer).

[0027] C) Copolymers derived from crotonic acids, such as those containing vinyl acetate or propionate units in the chain, and optionally other monomers, such as allyl or methallyl esters, vinyl ethers or vinyl esters of linear or branched saturated carboxylic acids with long hydrocarbon chains, such as those containing at least 5 carbon atoms (these polymers may be grafted and crosslinked), or alternatively vinyl, allyl or methallyl esters of α- or β-cyclic carboxylic acids. Such polymers are described, inter alia, in French Patents Nos. 1 222 944, 1 580 545, 2 265 782, 2 265 781, 1 564 110 and 2 439 798. Commercially available products within this category are resins 28 29 30, 26 13 14 and 28 13 10 sold by National Starch.

[0028] Mention may also be made, as copolymers derived from crotonic acid, of the crotonic acid / vinyl acetate / vinyl tert-butylbenzoate terpolymer, in particular Mexomere PW supplied by Chimex.

[0029] D) Polymers derived from maleic, fumaric or itaconic acid or anhydrides with vinyl esters, vinyl ethers, vinyl halides, phenylvinyl derivatives, acrylic acid and its esters. These polymers may be esterified. Such polymers are described, in particular, in US Pat. Nos. 2,047,398, 2,723,248 and 2,102,113, and in British Patent No. 839,805, and are sold, in particular, by ISP under the name Gantrez® AN or ES.

[0030] Polymers that also belong to this category are copolymers of maleic, citraconic or itaconic anhydride with allyl or methallyl esters, optionally containing acrylamide or methacrylamide groups in the chain, α-olefins, acrylic or methacrylic esters, acrylic or methacrylic acid or vinylpyrrolidone, in which the anhydride groups are monoesterified or monoamidated. Such polymers are described, for example, in French patents FR 2 350 384 and FR 2 357 241, both of which are owned by the Applicant.

[0031] E) Polyacrylamide containing carboxylate groups.

[0032] F) Polymers containing sulfonic acid groups: These polymers may be polymers containing vinylsulfonic acid units, styrenesulfonic acid units, naphthalenesulfonic acid units, acrylamidoalkylsulfonic acid units or sulfoisophthalate units.

[0033] These polymers may in particular be chosen from: - polyvinylsulfonates having a molecular weight of from about 1,000 to about 100,000 and also copolymers with unsaturated comonomers (acrylic or methacrylic acid and their esters, as well as acrylamide or its derivatives, vinyl ethers and vinylpyrrolidone, etc.); - Polystyrene sulfonates and sodium salts with a molecular weight of about 500,000 to about 100,000. These compounds are described in French Patent No. 2,198,719. - polyacrylamidosulfonates, such as those described in US Pat. No. 4,128,631;

[0034] G) Grafted anionic silicone polymers. The grafted silicone polymer used is preferably selected from polymers having a non-silicone organic backbone onto which polysiloxane-containing monomers are grafted, polymers having a polysiloxane backbone onto which non-silicone organic monomers are grafted, and mixtures thereof.

[0035] H) Anionic polyurethanes which may include silicone grafts and silicones with hydrocarbon-based grafts.

[0036] As examples of anchoring polyurethanes, mention may be made in particular of the dimethylolpropionic acid / isophorone diisocyanate / neopentyl glycol / polyester diol copolymer sold by BASF under the brand name Luviset® PUR (also known under the INCI name Polyurethane-1) and the dimethylolpropionic acid / isophorone diisocyanate / neopentyl glycol / polyester diol / silicone diamine copolymer sold by BASF under the brand name Luviset® Si PUR A (also known under the INCI name Polyurethane-6).

[0037] Another anionic polyurethane that can be used is Avalure UR 450.

[0038] Polymers containing sulfoisophthalate groups, such as AQ55 and AQ48, polymers sold by Eastman, can also be used.

[0039] According to the invention, the anionic fixing polymers are preferably acrylic acid copolymers, such as the acrylic acid / ethyl acrylate / N-tert-butylacrylamide terpolymers sold under the name Ultrahold Strong® by BASF, especially in aqueous dispersion, such as Luviflex Soft and Luvimer MAE sold by BASF, copolymers derived from crotonic acid, such as the vinyl acetate / vinyl tert-butylbenzoate / crotonic acid terpolymer and the crotonic acid / vinyl acetate / vinyl neododecanoate terpolymer sold under the name Resin 28-29-30 by National Starch, polymers derived from maleic acid, fumaric acid or itaconic acid or anhydride with vinyl esters, vinyl ethers, vinyl halides, phenylvinyl derivatives, acrylic acid and its esters, such as the monoesterified methyl vinyl ether / maleic anhydride copolymer sold under the name Gantrez® ES 425 by ISP, Luviset SI PUR, Mexomere PW, anionic polyurethanes, elastomeric or otherwise, polymers containing sulfoisophthalate groups, anionic fixing polymers of class B), and more particularly the terpolymer of crotonic acid / vinyl acetate / vinyl neodecanoate sold under the name Resin 28-29-30 by National Starch, are preferably used.

[0040] The total amount of fixing polymer may range from 0.1% to 30% by weight relative to the weight of the composition, preferably from 1% to 10% by weight relative to the weight of the composition, preferably from 1.5% to 8% by weight relative to the weight of the composition, and better still from 2% to 7% by weight.

[0041] direct dye The composition according to the invention comprises at least one blue, green or purple, more particularly blue or purple direct dye.

[0042] The direct dyes which can be used in accordance with the present invention are preferably anionic or cationic, preferably anionic.

[0043] The anionic direct dyes of the present invention are dyes commonly referred to as "acid" direct dyes due to their affinity for alkaline substances. The term "anionic direct dye" refers to a direct dye containing at least one COR or SOR substituent in its structure, where R represents a hydrogen atom or a cation or ammonium ion derived from a metal or amine. The anionic dye may be selected from acid azo direct dyes, acid azine dyes, acid triarylmethane dyes, acid indoamine dyes, acid anthraquinone dyes, xanthene dyes, indigoids, and acid natural dyes.

[0044] As anionic azo dyes, mention may be made of the dyes Acid Violet 7, Acid Violet 14, Acid Blue 113 and Acid Blue 117.

[0045] As acidic anthraquinone dyes, mention may be made of the dyes 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 Violet 42, Acid Violet 43 (also called Ext Violet 2).

[0046] As examples of triarylmethane dyes, mention may be made of the dyes Acid Blue 1, Acid Blue 3, Acid Blue 7, Acid Blue 9, Acid Violet 49.

[0047] As an example of a xanthene dye, Acid Violet 9 may be mentioned.

[0048] As an example of an indole dye, Acid Blue 74 may be mentioned.

[0049] As cationic direct dyes that can be used in accordance with the present invention, mention may be made of the dyes Basic Blue 6, Basic Blue 7, Basic Blue 9, Basic Blue 26, Basic Blue 41, Basic Blue 99, Basic Violet 1, Basic Violet 2, Basic Violet 3, Basic Violet 10, Basic Violet 14.

[0050] Preferred direct dyes are Ext. Violet 2, Acid Blue 62, Acid Blue 9 and Basic Violet 2, more preferentially Ext. Violet 2, Acid Blue 62 and Acid Blue 9.

[0051] The direct dyes are present in a total amount that may range from 0.001% to 3% by weight, preferably from 0.005% to 1% by weight, and more preferably from 0.0075% to 0.5% by weight relative to the total weight of the composition.

[0052] Preferably, the anionic direct dyes are present in a total amount that may range from 0.001% to 3% by weight, preferably from 0.005% to 1% by weight, and better still from 0.0075% to 0.5% by weight relative to the total weight of the composition.

[0053] C2-C4 monoalcohols The composition according to the present invention comprises one or more C2-C4 monoalcohols.

[0054] The C2-C4 monoalcohol is in particular chosen from ethanol, isopropanol, tert-butanol and n-butanol. Preferably, the monoalcohol used is ethanol.

[0055] The C2-C4 monoalcohols are generally present in a total amount ranging from 10% to 80% by weight, more preferentially from 20% to 70% by weight, and even more particularly from 30% to 60% by weight, relative to the total weight of the composition.

[0056] Additives: The composition may also contain at least one agent commonly used in cosmetics, such as an agent selected from reducing agents, organic solvents other than C2-C4 monoalcohols, emollients, antifoaming agents, moisturizing agents, UV screening agents, peptizers, solubilizing agents, fragrances, anionic, cationic, nonionic or amphoteric surfactants, proteins, vitamins, silicones, mineral oils, vegetable oils, fatty esters, fatty ethers and pH adjusters, and mixtures thereof.

[0057] Organic solvents: The composition according to the present invention may contain one or more organic solvents other than the C2-C4 monoalcohol.

[0058] Organic solvents may include polyols and polyol ethers, such as pentylene glycol, hexylene glycol, caprylyl glycol, 2-butoxyethanol, propylene glycol, dipropylene glycol, propylene glycol monomethyl ether, diethylene glycol monoethyl ether and monomethyl ether, and aromatic alcohols such as benzyl alcohol or phenoxyethanol, and mixtures thereof.

[0059] When organic solvents are present, they are preferably present in a total content of from about 1% to 80% by weight relative to the total weight of the composition, more preferentially from about 10% to 70% by weight, and even more particularly from 20% to 60% by weight relative to the total weight of the composition.

[0060] The composition according to the invention may comprise water present in a content of less than 5% by weight, preferably less than 3% by weight and more preferentially less than 1% by weight relative to the weight of the composition.

[0061] More preferentially, the composition does not contain water added during the preparation of the composition. Any water that may be present may correspond to residual moisture carried over by the mixed ingredients.

[0062] Preferably, the compositions according to the invention are anhydrous (0% water).

[0063] device: The aerosol device comprises at least one pressurized container containing at least one propellant selected from dimethyl ether b).

[0064] A propellant b) may optionally be present in the composition a) described above.

[0065] The container of the device according to the invention may have rigid walls and may directly contain composition a).

[0066] As a variant, the container may have rigid walls and may contain a pouch with flexible walls that contains composition a).

[0067] According to this configuration, the composition a) in the pouch may be free of propellant b), the latter being present in the gap defined between the rigid wall of the container and the pouch.

[0068] Preferably, the composition a) contained within the pouch itself also comprises at least one propellant b).

[0069] Preferably, the composition a) comprises one or more propellants b) and is contained directly in the container of the device.

[0070] The device comprises a means for delivering the composition, which means comprises at least one discharge valve mounted on the container.

[0071] The valve is in selective fluid communication with the interior of the container through an inlet opening in the valve, the communication being established in response to actuation of an actuation means such as a push button.

[0072] When the device is a container with rigid walls that houses a flexible pouch, the valve has two inhalation openings, one of which can communicate with the interior of the pouch and the other of which can communicate with a gap defined between the pouch and the rigid wall of the container.

[0073] If the container does not contain a pouch, the container is provided with a dip tube through which the composition can be delivered to the inhalation opening of the discharge valve.

[0074] When the container contains a pouch, the intake opening of the valve opens into the interior of the pouch.

[0075] The device may include at least one diffuser covering the valve, and the push button may form part of the diffuser.

[0076] The diffuser may include one or more discharge lines provided to deliver the composition to one or more discharge openings.

[0077] Examples of devices are disclosed in the documents US Pat. Nos. 3,917,121, 4,720,046 and WO 00 / 76880.

[0078] The diffuser may comprise a single discharge opening and diffusing branches radiating from said opening. Alternatively, the diffuser may comprise a plurality of discharge openings. Advantageously, the discharge openings may be arranged to form a diffusing grid.

[0079] Preferably, the container of the device according to the invention comprises a rigid wall and directly contains composition a).

[0080] Preferably, composition a) comprises only dimethyl ether b) as propellant.

[0081] Preferably, dimethyl ether is present in the pressurized container according to the invention in a total content ranging from 25% to 80% by weight, more preferentially from 30% to 70% by weight, even better from 35% to 60% by weight, and even better from 40% to 50% by weight, relative to the total weight of the composition (packaged in the aerosol device). If a propellant is present in composition a), the total weight of the composition corresponds to the total weight of composition a). If a propellant is not present in composition a), the total weight of the composition corresponds to the weight of composition a) + the weight of the propellant.

[0082] Preferably, dimethyl ether b) is present in the pressurized container according to the invention in a total amount ranging from 25% to 80% by weight, more preferentially from 30% to 70% by weight, even better from 35% to 60% by weight and even better still from 40% to 50% by weight relative to the total weight of composition a).

[0083] When dimethyl ether is present in composition a), the total amount of anionic fixing polymers may range from 0.1% to 30% by weight relative to the weight of composition a), preferably from 1% to 10% by weight relative to the weight of composition a), preferably from 2% to 8% by weight and better still from 3% to 7% by weight relative to the total weight of composition a).

[0084] When dimethyl ether is present in composition a), the total amount of direct dyes may range from 0.001% to 3% by weight, preferably from 0.005% to 1% by weight, and better still from 0.0075% to 0.5% by weight relative to the total weight of composition a).

[0085] The composition may also include one or more propellants other than dimethyl ether. The additional propellants may be selected from liquefied gases and compressed gases.

[0086] Examples of liquefied gases include chlorinated and / or fluorinated hydrocarbons, such as trichlorofluoromethane, dichlorodifluoromethane, chlorodifluoromethane, 1,1,1,2-tetrafluoroethane, chloropentafluoroethane, 1-chloro-1,1-difluoroethane or 1,1-difluoroethane, or volatile hydrocarbons, in particular C3-C5 alkanes, such as propane, isopropane, n-butane, isobutane or pentane, and mixtures thereof. Preferably, the hydrocarbons are selected from propane, isopropane, n-butane and isobutane, and mixtures thereof.

[0087] If the device comprises one or more additional propellants of the liquefied gas type, the total content of propellants (i.e. the total content of dimethyl ether plus other propellants) preferably ranges from 25% to 80% by weight, more preferentially from 30% to 70% by weight, better still from 35% to 60% by weight and even better still from 40% to 50% by weight, relative to the total weight of the composition.

[0088] Compressed gases may include nitrogen, air, and CO2, as well as mixtures thereof.

[0089] If the device comprises one or more additional propellants of compressed gas type, the content of compressed gas preferably ranges from 0.1% to 15% by weight, more preferentially from 1% to 10% by weight and even better from 1.5% to 8% by weight relative to the total weight of the composition.

[0090] The propellant is pressurized, and more particularly is in at least partially liquid form.

[0091] Advantageously, the composition delivered from the pressurized container is in liquid form.

[0092] process: Another subject of the invention is a method for treating keratinous fibers, such as hair, comprising applying to said fibers a composition delivered from a device as defined above.

[0093] The composition delivered by the above-mentioned aerosol device can be used on dry keratinous fibers, preferably natural or bleached blonde and white light colors. Preferably, the keratinous fibers have a tone depth of 7 or more, better still more than 8, and preferentially more than 9. The "tone" depth is based on the classification of natural shades from 1 to 10, and the tone separates each shade from the shade immediately following or preceding it (see "Science des Traitements Capillaires" [Science of Hair Treatments] by C. Zviak, published by Masson 1988, p. 278).

[0094] The device according to the invention ensures that application is uniform over the entire head of hair.

[0095] The present invention will now be explained in more detail by means of examples, which in no way limit the scope of the invention, but which make it possible to support certain features, variants and preferred embodiments of the invention. [Example]

[0096] Example 1 Compositions A to D according to the present invention were prepared.

[0097] Composition (g / 100g) AM: Active substance

[0098] [Table 1]

[0099] The compositions were loaded into cans using the following equipment: Valve: Precision IN - Inner Nozzle - 0.33 / IR - Inner Restriction - 0.33 stem 3.3 and Aptar Microdiffuser with nozzle DU3832 (0.38mm)

[0100] When the aerosol device according to the present invention is actuated, the mixture is delivered in the form of an atomized spray.

[0101] Composition A was sprayed onto each of two sides of a 1 g tress of bleached Caucasian hair (alkali solubility 50) measuring 27 cm in length at a distance of 20 cm for 5 seconds.

[0102] After drying, colorimetric measurements were carried out in the CIELab system using a Konica-Minolta-Post FR-C-MCI-0788 spectrocolorimeter (illuminant D65, angle 10°, including specular reflection component).

[0103] In this system, a * represents the green-red axis, and b * represents the blue-yellow axis. Chromaticity C * is the expression: C * =(a *2 +b *2 ) 1 / 2 is calculated according to

[0104] C * The lower the value of , the lower the chromaticity and the less yellow and / or orange tones will be visible:

[0105] [Table 2]

[0106] C * The values ​​are significantly lower after application of composition A, resulting in less coloration.

[0107] It is also visually observed that unsightly yellow and / or orange tones are significantly reduced and bleached hair has a more natural appearance.

[0108] The distribution of the product along the hair strand is uniform, and therefore the color is more uniform.

[0109] Furthermore, the fixation is natural and the hairstyle can be maintained.

[0110] Example 2 Composition A according to the invention and comparative composition B were prepared.

[0111] Composition (g / 100g) AM: Active substance

[0112] [Table 3]

[0113] The compositions were loaded into cans using the following equipment: Valve: Coster IN - Inner Nozzle - 0.42 / IR - Inner Restriction - 1.6 butyl stem 3.3 and Aptar Microdiffuser with nozzle DU3832 (0.38mm)

[0114] When the aerosol device according to the present invention is actuated, the mixture is delivered in the form of an atomized spray.

[0115] 2.4 g of composition A was sprayed onto each of two sides of an 18 cm long washed and dried yak hair tress weighing 2.6 g at a distance of 15 cm.

[0116] A panel of five experts blindly evaluated the neutralization of unsightly tones, the presence of residue, and dry hair limpness. Each of the five experts ranked and scored each tress, then assigned a score from 0, the worst performing, to 5, the best performing.

[0117] Neutralizing unsightly tones To assess the quality of neutralization, each expert looks at the tress immediately after applying the composition and assesses the neutralizing effect on the tress (less yellow, more natural color).

[0118] [Table 4]

[0119] 100% (5 out of 5) of the experts judged that Invention A provided better deyellowing.

[0120] residue / particles To assess residue, each expert observes the hair tress immediately after applying the composition and rates the amount of visible particles on the tress. The higher the score, the less residue there is.

[0121] [Table 5]

[0122] 100% (5 out of 5) of the experts judged composition A according to the invention to have substantially no visible particles after application.

[0123] suppleness To assess pliability, the expert takes a strand of hair between their thumb and index finger, folds the strand in half, and assesses its resistance to folding. The higher the score, the easier it is to fold, and therefore the more pliable the strand.

[0124] [Table 6]

[0125] 100% (5 out of 5) of the experts judged that Invention A allowed them to obtain a softer feel and therefore have a more natural, less set appearance.

Claims

1. － a) i) at least one anionic fixing polymer; ii) at least one direct dye from among blue, green or violet dyes, and iii) at least one C2-C4 monoalcohol At least one composition comprising: b) at least one propellant selected from dimethyl ether At least one pressurized vessel comprising: at least one pressurized container, wherein the composition comprises less than 5% by weight of water, based on the total weight of the composition; - a means for delivering said composition; 1. An aerosol device comprising:

2. 2. The device according to claim 1, characterized in that the anionic fixing polymer is selected from acrylic or methacrylic acid copolymers or salts thereof, crotonic acid copolymers, polyacrylamides containing carboxylate groups, homopolymers or copolymers containing sulfonic acid groups, anionic polyurethanes and anionic grafted silicone polymers, preferably acrylic or methacrylic acid copolymers or salts thereof and crotonic acid copolymers.

3. 3. The device according to claim 1, wherein the anionic fixing polymer is selected from terpolymers of crotonic acid, vinyl acetate and vinyl neodecanoate, and mixtures thereof.

4. Device according to any one of claims 1 to 3, characterized in that the anionic fixative polymer is present in a total amount ranging from 0.1% to 30% by weight, preferably from 1% to 10% by weight, preferentially from 1.5% to 8% by weight and better still from 2% to 7% by weight relative to the total weight of the composition.

5. A device according to any one of claims 1 to 4, characterized in that the composition comprises at least one direct dye chosen from anionic direct dyes and mixtures thereof.

6. 6. A device according to any one of claims 1 to 5, characterized in that the composition comprises at least one direct dye chosen from Ext. Violet 2, Acid Blue 62, Acid Blue 9 and Basic Violet 2, more preferentially Ext. Violet 2, Acid Blue 62 and Acid Blue 9.

7. 7. Device according to any one of claims 1 to 6, characterized in that the composition comprises said direct dyes in a total amount ranging from 0.001% to 3% by weight, preferably from 0.005% to 1% by weight, and better still from 0.0075% to 0.5% by weight relative to the total weight of the composition.

8. 8. Device according to any one of claims 1 to 7, characterized in that the composition comprises at least one C2 to C4 monoalcohol selected from ethanol, isopropanol, tert-butanol and n-butanol, preferably ethanol.

9. 9. Device according to any one of the preceding claims, characterized in that the C2 to C4 monoalcohols are present in a total amount ranging from 10% to 80% by weight, more preferentially from 20% to 70% by weight, and even more particularly from 30% to 60% by weight relative to the total weight of the composition.

10. 10. Device according to any one of claims 1 to 9, characterized in that dimethyl ether is present in a total amount ranging from 25% to 80% by weight, more preferentially from 30% to 70% by weight, even better from 35% to 60% by weight, and even better still from 40% to 50% by weight relative to the total weight of the composition.

11. The device according to any one of claims 1 to 10, wherein the container has rigid walls and directly contains the composition a) comprising dimethyl ether b).

12. The device according to any one of claims 1 to 11, characterized in that the composition is anhydrous.

13. A method for treating keratinous fibers, such as hair, comprising applying to said keratinous fibers a composition delivered from a device according to any one of claims 1 to 12.

14. 12. A method for neutralizing yellow and / or orange tones in keratinous fibers, such as previously bleached and / or natural hair, comprising applying to said fibers a composition delivered from a device according to any one of claims 1 to 11.

15. 13. A method for styling keratinous fibers, such as previously bleached and / or natural hair, comprising application to said fibers of a composition delivered from a device according to any one of claims 1 to 12.

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