Aerosol device based on anionically shaped polymers, direct dyes, monoalcohols and dimethyl ether

Abstract

The present invention relates to an aerosol device comprising:-at least one pressurized container comprising: a) at least one composition comprising: i) at least one anionic styling polymer, ii) at least one direct dye and iii) at least one C2-C4 monohydric alcohol, and b) at least one propellant selected from dimethyl ethers, the present invention relates to a composition comprising less than 5% by weight of water relative to the total weight of the composition, and means for delivering the composition. The invention also relates to a method for neutralizing the yellow and / or orange color of previously bleached and / or natural keratin fibres.

Description

[0001] The present invention relates to an aerosol device that contains a composition for treating keratin fibers such as hair, the composition comprising at least one anionic setting polymer, at least one direct dye in blue, green or purple, at least one C2-C4 monohydric alcohol, and at least dimethyl ether; and also relates to a treatment method using said composition. Field of the Invention

[0002] It is well known that hair is sensitized or weakened to varying degrees by atmospheric factors and especially the action of light, as well as by the action of certain cosmetic treatments such as shampooing.

[0003] It is also especially known that light has the tendency to erode the natural color of hair as well as the artificial color of dyed or bleached hair. The color of the hair gradually fades or turns to an unaesthetic or unwanted shade.

[0004] In fact, bleached hair is very often weakened and porous, such that over time, it tends to lose its pigmentation and exhibit an ugly yellow / orange color. Similarly, light-colored hair, especially white or gray hair, may have an ugly yellow / orange color.

[0005] Therefore, the object of the present invention is to develop a device for treating keratin fibers such as hair that allows the composition to be applied quickly and evenly to the keratin fibers, thereby neutralizing the yellow and / or orange color of the hair on the entire treated head of hair, having good cosmetic properties in terms of the softness or suppleness of the hair, as well as good properties for shaping and / or maintaining the hairstyle of a head of hair. In addition, the device according to the present invention produces a treatment that does not transfer or hardly transfers to the skin or textiles once dried. Summary of the Invention

[0006] This object is achieved by the present invention, the subject of which is an aerosol device that includes:

[0007] - at least one pressurized container that contains:

[0008] a) at least one composition that comprises:

[0009] i) at least one anionic setting polymer,

[0010] ii) at least one direct dye from the group of blue, green or purple dyes, and

[0011] iii) at least one C2-C4 monohydric alcohol, and

[0012] b) at least one propellant selected from dimethyl ether, and

[0013] - A device for delivering the composition.

[0014] Another subject of the present invention is a method for neutralizing the yellow and / or orange color of previously bleached and / or naturally white keratin fibers such as hair, the method comprising applying the composition delivered by the device as defined above to said fibers.

[0015] By using the aerosol device according to the present invention, on keratin fibers such as hair, on the whole head of hair, a uniform and vivid neutralization is obtained quickly and easily. Moreover, the hair feels softer and more compliant and does not show residues after application. This treatment has the advantage of being a leave-in treatment and not using water.

[0016] In addition, the composition has good transfer resistance, and deposition onto carriers such as skin and / or clothes in contact with the composition is limited.

[0017] The present invention also relates to a method for hair styling and / or for maintaining the shape of a hairstyle, the method comprising the step of applying the composition to dry or wet hair, said composition being a leave-in composition. Preferably, the composition is applied to keratin fibers such as natural or bleached light-colored (blonde or white) hair.

[0018] Another subject of the present invention is the use of the composition for hair styling and / or for maintaining the shape of a hairstyle.

[0019] The term "neutralizing the yellow and / or orange color" is intended to mean masking the unsightly yellow and / or orange color, that is to say changing the color to make it more natural (close to natural blonde or white), in particular by changing the values of the parameters a* (green - red axis) and / or b* (blue - yellow axis) of the CIELab colorimetric system.

[0020] The present invention is not limited to the examples shown. The features of the different examples can in particular be combined in variants not shown.

[0021] The term "at least one" means one or more.

[0022] The aerosol device comprises at least one pressurized container which contains:

[0023] a) at least one composition which comprises:

[0024] i) at least one anionic styling polymer,

[0025] ii) at least one direct dye, and

[0026] iii) at least one C2 - C4 monohydric alcohol,

[0027] b) at least one propellant selected from dimethyl ether,

[0028] The composition contains less than 5% by weight of water relative to the total weight of the composition.

[0029] The composition a) according to the invention is preferably a cosmetic composition for treating keratin fibers such as hair.

[0030] Hereinafter, when a propellant is present in composition a), the total weight of the composition corresponds to the total weight of composition a). When no propellant is present in composition a), the total weight of the composition corresponds to the weight of composition a) + the weight of the propellant.

[0031] Anionic setting polymers:

[0032] The composition according to the invention contains at least one anionic setting polymer.

[0033] The term "setting polymer" means any polymer capable of giving a shape to a head of hair or maintaining a head of hair in a given shape.

[0034] Mention may be made of anionic setting polymers comprising groups derived from carboxylic acids, sulfonic acids or phosphoric acids and having a number-average molecular weight between 500 and 5000000.

[0035] These carboxylic acid groups are provided by unsaturated monocarboxylic or dicarboxylic acid monomers such as those corresponding to formula (I):

[0036]

[0037] where

[0038] n is an integer from 0 to 10,

[0039] A represents a methylene group which, when n is greater than 1, is optionally linked via a heteroatom such as oxygen or sulfur to the carbon atom of the unsaturated group or to an adjacent methylene group,

[0040] R1 represents a hydrogen atom or a phenyl or benzyl group,

[0041] R2 represents a hydrogen atom, an alkyl group containing 1 to 4 carbon atoms or a carboxyl group,

[0042] R3 represents a hydrogen atom, an alkyl group containing 1 to 4 carbon atoms, a -CH2-COOH group, a phenyl or benzyl group.

[0043] In the above formula (I), the alkyl group containing 1 to 4 carbon atoms may in particular represent methyl and ethyl.

[0044] Preferred anionic setting polymers bearing carboxylic or sulfonic acid groups are:

[0045] A) Acrylic or methacrylic acid copolymers or their salts, including copolymers of acrylic acid and acrylamide, and methacrylic acid / acrylic acid / ethyl acrylate / methyl methacrylate copolymers, in particular Amerhold DR25 sold by Amerchol, and sodium salts of polyhydroxycarboxylic acids. Mention may also be made of methacrylic acid / ethyl acrylate copolymers, which are notably in the form of an aqueous dispersion, such as Luviflex Soft and Luvimer MAE sold by BASF.

[0046] B) Copolymers of acrylic or methacrylic acid with monoene monomers (such as ethylene, styrene, vinyl esters and acrylic or methacrylic esters), which are optionally grafted onto polyalkylene glycols (such as polyethylene glycol) and are optionally crosslinked. Such polymers are described in particular in French Patent 1222944 and German Patent Application No. 2330956. Copolymers of this type contain in their chain acrylamide units which are optionally N-alkylated and / or hydroxyalkylated, as described notably in Luxembourg Patent Applications 75370 and 75371. Mention may also be made of copolymers of acrylic acid and C1-C4 alkyl methacrylates.

[0047] As another anionic styling polymer from this family, mention may also be made of the butyl acrylate / acrylic acid / methacrylic acid branched block anionic polymer (INCI name AMP - acrylate / allyl methacrylate copolymer) sold by Lubrizol under the name Fixate G - 100L.

[0048] C) Copolymers derived from crotonic acid, such as those containing vinyl acetate or vinyl propionate units and optionally other monomers in their chain, these other monomers such as allyl esters or methallyl esters, vinyl ethers or vinyl esters of straight-chain or branched-chain saturated carboxylic acids having a long hydrocarbon chain (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 in particular in French Patents 1222944, 1580545, 2265782, 2265781, 1564110 and 2439798. Commercial products falling within this category are Resins 282930, 261314 and 281310 sold by National Starch.

[0049] As a copolymer derived from crotonic acid, mention may also be made of the crotonic acid / vinyl acetate / vinyl tert-butylbenzoate terpolymer, and in particular Mexomere PW supplied by Chimex.

[0050] D) Polymers derived from maleic acid, fumaric acid or itaconic acid or anhydrides thereof with vinyl esters, vinyl ethers, vinyl halides, phenyl vinyl derivatives, acrylic acid and its esters; these polymers may be esterified. Such polymers are described in particular in US Patents 2047398, 2723248 and 2102113 and British Patent 839805, and notably those sold by ISP under the name AN or ES.

[0051] Also falling within this category are copolymers of maleic anhydride, citraconic anhydride or itaconic anhydride with allyl or methallyl esters, which may optionally contain acrylamide or methacrylamide groups, α-olefins, acrylic or methacrylic esters, acrylic or methacrylic acid or vinyl pyrrolidone in their chains, and these anhydride functional groups are mono-esterified or mono-amidated. These polymers are described by the applicant, for example, in French Patents 2350384 and 2357241.

[0052] E) Polyacrylamides containing carboxylic acid groups.

[0053] F) Polymers containing sulfonic acid groups. These polymers may be polymers containing vinyl sulfonic acid, styrene sulfonic acid, naphthalene sulfonic acid, acrylamidoalkyl sulfonic acid or sulfophthalate units.

[0054] These polymers may notably be selected from:

[0055] - Polyvinyl sulfonates having a molecular weight between approximately 1000 and 100000, and also copolymers with unsaturated comonomers such as acrylic or methacrylic acid and their esters, as well as acrylamide or its derivatives, vinyl ethers and vinyl pyrrolidone;

[0056] - Polystyrene sulfonates and sodium salts thereof having a molecular weight of approximately 500000 and approximately 100000. These compounds are described in Patent FR 2198719;

[0057] - Polyacrylamide sulfonates, such as those mentioned in Patent US 4128631;

[0058] G) Grafted anionic silicone polymers.

[0059] The grafted silicone polymers used are preferably selected from polymers having a non-silicone organic backbone grafted with polysiloxane-containing monomers, polymers having a polysiloxane backbone grafted with non-silicone organic monomers, and mixtures thereof.

[0060] H) Anionic polyurethanes, which may contain silicone grafts and silicones with hydrocarbon-based grafts.

[0061] Examples of setting polyurethanes that may be worth noting include the dimethylolpropionic acid / isophorone diisocyanate / new pentaerythritol / polyester diol copolymer sold by BASF under the trade name PUR (also known by the name polyurethane-1 (INCI name)), and the dimethylolpropionic acid / isophorone diisocyanate / new pentaerythritol / polyester diol / silicone diamine copolymer sold by BASF under the trade name Si PUR A (also known by the name polyurethane-6 (INCI name)).

[0062] Another anionic polyurethane that can also be used is Avalure UR450.

[0063] Polymers containing sulfoisophthalate groups can also be used, such as polymers AQ55 and AQ48 sold by Eastman.

[0064] According to the present invention, the anionic setting polymer is preferably selected from acrylic copolymers, such as the acrylic acid / ethyl acrylate / N-tert-butylacrylamide terpolymer sold by BASF under the name Ultrahold The methyl methacrylate / ethyl acrylate copolymer (which is particularly in the form of an aqueous dispersion), such as Luviflex Soft and LuvimerMAE 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 neodecanoate terpolymer sold by National Starch under the name Resin 28-29-30, polymers derived from maleic acid, fumaric acid or itaconic acid or their anhydrides and vinyl esters, vinyl ethers, vinyl halides, phenyl vinyl derivatives, acrylic acid and its esters, such as the monoesterified methyl vinyl ether / maleic anhydride copolymer sold by ISP under the name ES 425, Luviset SIPUR, Mexomere PW, anionic polyurethanes (in elastomeric or other forms), preferably polymers containing sulfoisophthalate groups, anionic setting polymers of family B), and even more particularly the crotonic acid / vinyl acetate / vinyl neodecanoate terpolymer sold by National Starch under the name Resin 28-29-30.

[0065] The total amount of the setting polymer can range from 0.1% to 30% by weight, preferably 1% to 10% by weight, more preferably 1.5% to 8% by weight, and even better 2% to 7% by weight relative to the weight of the composition.

[0066] Direct dyes:

[0067] The composition according to the invention comprises at least one blue, green or violet and more particularly blue or violet direct dye.

[0068] The direct dyes which can be used according to the invention are preferably anionic or cationic and are preferably anionic.

[0069] The anionic direct dyes of the invention are dyes which are generally known as "acid" direct dyes due to their affinity for basic substances. The term "anionic direct dye" means any direct dye which includes in its structure at least one CO2R or SO3R substituent, in which R represents a hydrogen atom or a cation derived from a metal or an amine, or an ammonium ion. The anionic dyes may be selected from acid azo direct dyes, acid azine dyes, acid triarylmethane dyes, acid indoamine dyes, acid anthraquinone dyes, xanthene dyes, indigo dyes and acid natural dyes.

[0070] As anionic azo dyes, mention may be made of the dyes Acid Violet 7, Acid Violet 14, Acid Blue 113 and Acid Blue 117.

[0071] As acid 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 known as Exterior Violet No. 2).

[0072] 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.

[0073] As an example of a xanthene dye, mention may be made of: Acid Violet 9.

[0074] As an example of an indole dye, mention may be made of: Acid Blue 74.

[0075] As cationic direct dyes which can be used according to the 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.

[0076] Preferred direct dyes are Exterior Violet No. 2, Acid Blue 62, Acid Blue 9 and Basic Violet 2, more preferably Exterior Violet No. 2, Acid Blue 62 and Acid Blue 9.

[0077] The direct dyes are present in a total amount which can range from 0.001% to 3% by weight, preferably from 0.005% to 1% by weight, still better from 0.0075% to 0.5% by weight, relative to the total weight of the composition.

[0078] Preferably, the anionic direct dye is present in a total amount that can range from 0.001% to 3% by weight, preferably 0.005% to 1% by weight, and even more preferably 0.0075% to 0.5% by weight, relative to the total weight of the composition.

[0079] C2-C4 monohydric alcohol

[0080] The composition according to the invention comprises one or more C2-C4 monohydric alcohols.

[0081] The C2-C4 monohydric alcohol is notably selected from ethanol, isopropanol, tert-butanol and n-butanol. Preferably, the monohydric alcohol used is ethanol.

[0082] The C2-C4 monohydric alcohol is generally present in a total amount ranging from 10% to 80% by weight, and more preferably in the range of 20% to 70% by weight and even more particularly in the range of 30% to 60% by weight relative to the total weight of the composition.

[0083] Additives:

[0084] These compositions may also comprise at least one reagent commonly used in cosmetics, which is, for example, selected from reducing agents, organic solvents other than C2-C4 monohydric alcohols, softeners, defoamers, humectants, UV screening agents, peptizing agents, solubilizers, fragrances, anionic surfactants, cationic surfactants, nonionic surfactants or amphoteric surfactants, proteins, vitamins, silicones, mineral oils, vegetable oils, fatty esters, fatty ethers and pH regulators, and mixtures thereof.

[0085] Organic solvents:

[0086] The composition according to the invention may comprise one or more organic solvents other than C2-C4 monohydric alcohols.

[0087] As organic solvents, mention may be made of polyols and polyol ethers, such as pentylene glycol, hexylene glycol, octylene glycol, 2-butoxyethanol, propylene glycol, dipropylene glycol, propylene glycol monomethyl ether, diethylene glycol monoethyl ether and monomethyl ether, and also aromatic alcohols such as benzyl alcohol or phenoxyethanol, and mixtures thereof.

[0088] When the organic solvents are present, they are present in a total content preferably between about 1% and 80% by weight, and more preferably between about 10% and 70% by weight and even more particularly between 20% and 60% by weight relative to the total weight of the composition.

[0089] The composition according to the invention may comprise water in a content of less than 5% by weight, preferably less than 3% by weight, more preferably less than 1% by weight, relative to the weight of the composition.

[0090] More preferably, the composition does not contain water added during the preparation of the composition. Any water present may correspond to residual water provided by the mixed ingredients.

[0091] Preferably, the composition according to the invention is anhydrous (0% water).

[0092] Device:

[0093] The aerosol device comprises at least one pressurized container which contains at least one propellant b) selected from dimethyl ether.

[0094] Propellant b) may optionally be present in composition a) as previously described.

[0095] The container of the device according to the invention may have a rigid wall and may directly accommodate composition a).

[0096] As a variant, the container may have a rigid wall and may accommodate a flexible-walled sachet containing composition a).

[0097] According to this configuration, composition a) in the sachet may not contain propellant b), which is in the volume defined between the rigid wall of the container and the sachet.

[0098] Preferably, composition a) accommodated in the sachet itself also contains at least one propellant b).

[0099] Preferably, composition a) contains one or more propellants b) and is directly accommodated in the container of the device.

[0100] The device comprises means for delivering the composition, which means comprise at least one dispensing valve over the container.

[0101] The valve is selectively in fluid communication with the interior of the container via a valve inlet orifice, which communication is established in response to actuation of an actuation means such as a button.

[0102] When the device comprises a rigid-walled container accommodating a flexible sachet, the valve is equipped with two inlet orifices, one of which is capable of communicating with the interior of the sachet and the other of which is capable of communicating with the volume defined between the sachet and the rigid wall of the container.

[0103] When the container does not accommodate a sachet, it is equipped with a suction tube which enables the composition to be conveyed to the inlet orifice of the dispensing valve.

[0104] When the container accommodates a sachet, the inlet orifice of the valve opens into the sachet.

[0105] The device may comprise at least one diffuser covering the valve. The button may form part of the diffuser.

[0106] The diffuser may be equipped with one or more provided distribution tubes for delivering the composition all the way to one or more distribution orifices.

[0107] Documents US 3917121, US 4720046 and WO 00 / 76880 disclose examples of the device.

[0108] The diffuser may include a single outlet orifice and diffusing branches diverging from said orifice. As a variant, the diffuser includes a plurality of outlet orifices. Advantageously, the outlet orifices may be arranged so as to obtain a diffusing grille.

[0109] Preferably, the pressurized container of the device according to the invention has a rigid wall and directly accommodates composition a).

[0110] Preferably, composition a) contains only dimethyl ether b) as a propellant.

[0111] Dimethyl ether is preferably present in the pressurized container according to the invention in a total content in the range of 25% to 80% by weight, more preferably 30% to 70% by weight, still better 35% to 60% by weight, even still better 40% to 50% by weight relative to the total weight of the composition (packaged in the aerosol device). When a propellant is present in composition a), the total weight of the composition corresponds to the total weight of composition a). When no propellant is present in composition a), the total weight of the composition corresponds to the weight of composition a) + the weight of the propellant.

[0112] Preferably, dimethyl ether b) is present in the pressurized container according to the invention in a total amount in the range of 25% to 80% by weight, more preferably 30% to 70% by weight, still better 35% to 60% by weight, even still better 40% to 50% by weight relative to the total weight of composition a).

[0113] When dimethyl ether is present in composition a), the total amount of the anionic styling polymer may range from 0.1% to 30% by weight, preferably 1% to 10% by weight, preferably 2% to 8% by weight, still better 3% to 7% by weight relative to the weight of composition a).

[0114] When dimethyl ether is present in composition a), the total amount of the direct dye may range from 0.001% to 3%, preferably 0.005% to 1%, still better 0.0075% to 0.5% relative to the total weight of composition a).

[0115] The composition may also contain one or more propellants other than dimethyl ether. The additional propellant may be selected from liquefied gases and compressed gases.

[0116] As examples of liquefied gases, mention may be made of 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 such as in particular C3 - C5 alkanes such as propane, isopropane, n - butane, isobutane or pentane, and mixtures thereof. Preferably, these hydrocarbons are selected from propane, isopropane, n - butane and isobutane, and mixtures thereof.

[0117] When the device contains one or more additional propellants of the liquefied gas type, the total content of the propellant (that is to say the total content of dimethyl ether + other propellants) preferably ranges from 25% to 80% by weight, more preferably from 30% to 70% by weight, still better from 35% to 60% by weight, even still better from 40% to 50% by weight relative to the total weight of the composition.

[0118] As compressed gases, mention may also be made of nitrogen, air and CO2, and mixtures thereof.

[0119] When the device contains one or more additional propellants of the compressed gas type, the content of the compressed gas preferably ranges from 0.1% to 15% by weight, more preferably from 1% to 10% by weight, still better from 1.5% to 8% by weight relative to the total weight of the composition.

[0120] The propellant is pressurized, more particularly at least partially pressurized in liquid form.

[0121] Advantageously, the composition delivered by the pressurized container is in liquid form.

[0122] Method:

[0123] Another subject of the present invention is a method for treating keratin fibers such as hair, which method comprises applying the composition delivered by a device as defined above to said fibers.

[0124] The composition delivered by the above aerosol device can be used on dry keratin fibers, preferably natural or bleached dry keratin fibers of blond and white light shades. Preferably, the keratin fibers have a shade depth greater than or equal to 7, still better greater than 8, preferably greater than 9. The "shade" depth is based on a classification of natural chromaticities from 1 to 10, with the shade separating each chromaticity from the chromaticity immediately following or preceding it (see "Science des Traitements Capillaires" [Science of Hair Treatments] by C. Zviak, published by Masson in 1988, page 278).

[0125] With the aid of the device according to the invention, the application is uniform over the entire head of hair.

[0126] The invention will now be described more specifically by way of examples, which in no way limit the scope of the invention. However, these examples enable the specific features, variants and preferred embodiments of the invention to be supported.

[0127] Example 1

[0128] Compositions A to D according to the invention were prepared.

[0129] Composition (g / 100 g) AM: Active material

[0130]

[0131]

[0132] The compositions were packaged in cans using the following equipment:

[0133] Valve: Precision IN - inner nozzle - 0.33 / IR - internal restrictor - 0.33 valve stem 3.3 and Aptar microdiffuser with nozzle DU3832 (0.38 mm)

[0134] The aerosol device according to the invention was activated and the mixture was delivered in spray form.

[0135] Composition A was sprayed at a distance of 20 cm onto each side of a tress of bleached Caucasian hair (alkaline solubility 50) 27 cm long and weighing 1 g for 5 seconds.

[0136] After drying, colorimetric measurements were carried out in the CIELab system using a Konica - Minolta - Post FR - C - MCI - 0788 spectrocolorimeter (light source D65, angle 10°, including specular reflection component).

[0137] In this system, a* represents the green - red axis and b* represents the blue - yellow axis. The chroma C* is calculated according to the following formula:

[0138] C* = (a* 2 + b* 2 ) 1 / 2 .

[0139] The lower the value of C*, the lower the chroma and the less visible yellow and / or orange coloration:

[0140] C* Before applying Composition A 26.9 After 1 application of Composition A 22.7

[0141] After application of composition A, the value of C* was significantly lower: the color was less vivid.

[0142] There is also a significant reduction in the visually observed ugly yellow and / or orange colors, and the bleached hair has a more natural visual appearance.

[0143] The distribution of the product along the tress is uniform. Therefore, the color is more uniform.

[0144] In addition, the styling is natural and allows the hairstyle to be maintained.

[0145] Example 2

[0146] Compositions A according to the invention and comparative composition B were prepared.

[0147] Composition (g / 100g) AM: Active material

[0148]

[0149] The compositions were packaged in cans using the following equipment:

[0150] Valve: Coster IN - internal nozzle - 0.42 / IR - internal restrictor - 1.6 butyl rubber valve stem 3.3 and Aptar micro - diffuser with nozzle DU3832 (0.38 mm)

[0151] The aerosol device according to the invention was activated and the mixture was delivered in spray form.

[0152] 2.4 g of composition A was sprayed at a distance of 15 cm onto each of the two sides of a 18 - cm long washed and dried yak hair tress weighing 2.6 g.

[0153] A panel of 5 experts evaluated the neutralization of ugly colors, the presence of residues, and the softness of dry hair in a blinded test. Each of the 5 experts ranked and then scored each of these tresses, assigning scores from 0 for the lowest - performing side to 5 for the highest - performing side.

[0154] Neutralization of ugly colors

[0155] To evaluate the quality of neutralization, each expert observed the tress immediately after applying the composition and evaluated the neutralization of the tress (less yellow, more natural color).

[0156]

[0157]

[0158] 100% of the experts (5 out of 5) judged that invention A enabled better yellowing removal.

[0159] Residues / particles

[0160] To evaluate the residue, each expert observed the tress immediately after application of the composition and evaluated the amount of particles visible on the tress. The higher the score, the less residue present.

[0161] A B Expert 1 4 3 Expert 2 5 1 Expert 3 5 2 Expert 4 4 1 Expert 5 4.5 4 Average value 4.5 2.2 Standard deviation 0.5 1.3

[0162] 100% of the experts (5 out of 5) judged that Composition A according to the invention had almost no visible particles after application.

[0163] Softness

[0164] To evaluate softness, the expert took the tress between the thumb and forefinger, folded the tress into two parts, and evaluated the resistance to folding. The higher the score, the easier the folding and thus the softer the tress.

[0165]

[0166]

[0167] 100% of the experts (5 out of 5) judged that Invention A enabled a softer feel and thus had a more natural, less set visual appearance.

Claims

1. An aerosol device, comprising: - at least one pressurized container, the pressurized container containing: a) at least one composition, the composition containing: i) at least one anionic styling polymer, ii) at least one direct dye selected from blue, green or purple dyes, and iii) at least one C2-C4 monohydric alcohol, b) at least one propellant selected from dimethyl ether, the composition containing less than 5% by weight of water relative to the total weight of the composition. - a device for delivering the composition.

2. The device according to claim 1, wherein The anionic styling polymer is selected from acrylic or methacrylic acid copolymers or their salts, crotonic acid copolymers, polyacrylamides with carboxylic acid groups, homopolymers or copolymers with sulfonic acid groups, anionic polyurethanes and anionic grafted silicone polymers, preferably selected from acrylic or methacrylic acid copolymers or their salts and crotonic acid copolymers.

3. The device according to any one of the preceding claims, characterized in that The anionic styling polymer is selected from terpolymers of crotonic acid, vinyl acetate and vinyl neodecanoate and mixtures thereof.

4. The device according to any one of the preceding claims, characterized in that, The anionic styling polymer is present in a total amount ranging from 0.1% to 30% by weight, preferably from 1% to 10% by weight, preferably from 1.5% to 8% by weight, and even better from 2% to 7% by weight relative to the total weight of the composition.

5. The device according to any one of the preceding claims, characterized in that The composition contains at least one direct dye selected from anionic direct dyes and mixtures thereof.

6. The device according to any one of the preceding claims, characterized in that The composition contains at least one direct dye selected from the following: Ext. Violet 2, Acid Blue 62, Acid Blue 9 and Basic Violet 2, more preferably Ext. Violet 2, Acid Blue 62 and Acid Blue 9.

7. The device according to any one of the preceding claims, characterized in that, The composition contains the direct dye in a total amount ranging from 0.001% to 3% by weight, preferably 0.005% to 1% by weight, and even better 0.0075% to 0.5% by weight relative to the total weight of the composition.

8. The device according to any one of the preceding claims, characterized in that The composition contains at least one C2-C4 monohydric alcohol selected from the following: ethanol, isopropanol, tert-butanol and n-butanol, and preferably ethanol.

9. The device according to any one of the preceding claims, characterized in that, The C2-C4 monohydric alcohol is present in a total amount ranging from 10% to 80% by weight, and more preferably 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. The device according to any one of the preceding claims, characterized in that, Dimethyl ether is present in a total amount ranging from 25% to 80% by weight, more preferably 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.

11. The apparatus according to any one of the preceding claims, wherein, The container has a rigid wall and directly accommodates the composition a) containing dimethyl ether b).

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

13. A method for treating keratin fibers such as hair, the method comprising applying the composition delivered by the device according to any one of the preceding claims to the keratin fibers.

14. A method for neutralizing the yellow and / or orange color of previously bleached and / or natural keratin fibers such as hair, the method comprising applying the composition delivered by the device according to any one of claims 1 to 11 to the fibers.

15. A method for shaping previously bleached and / or natural keratin fibers such as hair, the method comprising applying a composition delivered by a device according to any one of claims 1 to 12 to the fibers.

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