Aerosol device containing a composition comprising a solid fatty alcohol, a monohydric alcohol and a compressed gas

Abstract

The present invention relates to an aerosol device containing a composition, in particular a cosmetic hair composition, comprising at least 5% by weight of one or more fatty alcohols, at least 20% by weight of one or more C2-C6 monohydric alcohols, a compressed gas, and optionally one or more liquid fatty substances. The present invention also relates to the use of the composition according to the invention for styling and / or conditioning keratin fibres, in particular human keratin fibres such as the hair, and in particular for defining a curly hair profile.

Description

[0001] The present application relates to an aerosol device containing a composition, in particular a cosmetic composition, in particular a hair composition, comprising at least 5% by weight of one or more fatty alcohols, including at least one solid fatty alcohol, at least 20% by weight of one or more C2-C6 monohydric alcohols, at least one propellant chosen from compressed gases, and optionally one or more liquid fatty substances other than liquid fatty alcohols.

[0002] The present application also relates to a process for styling and / or conditioning keratin fibres, in particular human keratin fibres such as the hair, comprising at least one step of applying to said fibres a composition according to the application.

[0003] The present application finally relates to the use of the composition emitted from the aerosol device for styling and / or conditioning keratin fibres, in particular human keratin fibres such as the hair, and in particular for providing softness, smoothness, a non-sticky hand and a shiny feel, for facilitating the detangling of the hair, for defining the curl profile of the hair, and for providing control of frizz and volume of the hair. The aerosol form makes it possible to deliver a light mist that does not weigh down the hair and is easily distributed on the hair.

[0004] Many individuals are not satisfied with the appearance of their hair: in particular, those who have curly hair can wish to keep the curls but obtain a better curl profile and better neatness, better mobility and less volume and frizz, even in humid conditions. Furthermore, some individuals find it difficult to control, define and / or style their curly hair.

[0005] Some individuals also wish their hair to become soft and shiny.

[0006] There is a need to provide a composition that makes it possible to simplify the styling process, in particular for those who have curly hair.

[0007] In particular, there is a need to provide a composition that, while being able to keep the hair curled, imparts good profile and neatness to it and makes it possible to obtain good control of frizz and volume of the hair, and withstands humidity while providing hair care, which can still act after several shampoo washes.

[0008] Indeed, the Applicant has just discovered, quite surprisingly, that an aerosol device containing a composition comprising one or more dissolved fatty alcohols, at least one C2-C4 monohydric alcohol, and a combination of at least one compressed gas makes it possible to solve the aforementioned problems.

[0009] Thus, one subject of the application is an aerosol device containing a composition comprising:

[0010] at least 5% by weight, relative to the total weight of the composition, of one or more fatty alcohols, the fatty alcohols comprising at least one solid fatty alcohol, at least 20% by weight, relative to the total weight of the composition, of one or more C2-C6 monohydric alcohols, at least one propellant chosen from compressed gases, and optionally one or more liquid fatty substances other than liquid fatty alcohols, relative to the total weight of the composition.

[0011] Advantageously, the fatty alcohols are dissolved in the composition.

[0012] The Applicant has notably observed that the composition according to the application makes it possible to obtain well-defined curls, good control of frizz and volume on the hair, and to impart good manageability to the hair. In addition, the composition according to the application provides a conditioning effect on the hair and in particular makes it possible to provide a pleasant cosmetic sensation, in particular a smooth, non-greasy hand, to facilitate the smoothing of the hair and to provide shine. The composition neither provides a greasy effect nor a waxy effect, it does not transfer to the hands when the hands are run through the hair, and it provides good control of the volume. The use of an aerosol device makes it possible to distribute the composition well over the entire head of hair.

[0013] In addition, the composition according to the application is advantageously clear or transparent, this type of hair product thus having a raw visual effect in a transparent container.

[0014] In addition, the composition according to the application is easily distributed on the hair, in particular dry hair, to obtain a conditioning and / or styling care.

[0015] Another subject of the application is a process for styling and / or conditioning keratin fibres, in particular human keratin fibres such as the hair, comprising at least one step of applying to said fibres a composition sprayed from an aerosol device according to the application.

[0016] Other subjects, characteristics, aspects and advantages of the application will become even more clearly apparent on reading the description below and the examples.

[0017] In the present description, the expression "at least one" is equivalent to the expression "one or more" and can replace said expression; the expression "between... and..." is equivalent to the expression "ranging from... to..." and can replace said expression, and means that the extreme values are included.

[0018] The term "keratin fibre" means a fibre of human or animal origin, such as the hair, the body hair, the eyelashes, the eyebrows, the wool, the Angora goat hair, the cashmere or the pelt. According to the application, the keratin fibre is preferably a human keratin fibre, more preferentially the hair.

[0019] The composition according to the application is advantageously in the form of a transparent to translucent, more preferentially transparent, fluid. This property is especially advantageous in the case of transparent containers, in particular made of PET (polyethylene terephthalate).

[0020] The transparency of the composition according to the application can be characterized by measuring its turbidity by nephelometry (in NTU units). In the context of the present application, the turbidity measurement is carried out using a turbidimeter from the company Hanna Instruments, model HI 88713-ISO.

[0021] Preferentially, the turbidity of the composition according to the application, measured at ambient temperature (25°C) and at atmospheric pressure, is less than 400 NTU units, more preferentially between 1 and 250 NTU units, even better still between 3 and 200 NTU units.

[0022] Fatty alcohol

[0023] The composition according to the application comprises at least 5% by weight, relative to the total weight of the composition, of one or more fatty alcohols, at least one of these fatty alcohols being in solid state.

[0024] The term "fatty alcohol" means a non-glycerolated and non-oxyalkylenated, linear or branched, saturated or unsaturated, aliphatic alcohol comprising from 6 to 40 carbon atoms and comprising at least one hydroxyl group and preferably containing from 8 to 30 carbon atoms, preferentially from 12 to 24 carbon atoms, better still from 14 to 22 carbon atoms.

[0025] According to the application, the fatty alcohol is preferentially solubilized in the composition.

[0026] The term "solubilized fatty alcohol" means that the fatty alcohol does not come out of the composition and / or that it does not form crystals. When the composition is visually inspected with the naked eye, it is homogeneous, single-phase and clear or transparent.

[0027] The term "liquid" means liquid at 25°C and at atmospheric pressure (760 mmHg; i.e. 1.013 x 10 5 Pa) at 25°C and at a shear rate of 1 s -1 The term "solid" means liquid at 30°C and at atmospheric pressure (760 mmHg; i.e. 1.013 x 10 5 Pa) at 25°C and at a shear rate of 1 s -1

[0028] The term "solid" means liquid at 30°C and at atmospheric pressure (760 mmHg; i.e. 1.013 x 10 5 Pa) at 25°C and at a shear rate of 1 s -1

[0029] solid fatty alcohols

[0030] The solid (non-liquid) fatty alcohol according to the application is chosen from saturated or unsaturated, linear or branched alcohols comprising from 8 to 30 carbon atoms, preferably from 12 to 24 carbon atoms, better still from 14 to 22 carbon atoms.

[0031] More preferentially, the solid (non-liquid) fatty alcohol according to the application is chosen from saturated linear alcohols comprising from 8 to 30 carbon atoms, preferably from 12 to 24 carbon atoms, better still from 14 to 22 carbon atoms.

[0032] Preferentially, the solid fatty alcohol according to the application is chosen from fatty alcohols having a melting point of greater than 30°C, preferentially greater than 35°C.

[0033] Preferentially, mention can be made, for example, of cetyl alcohol, stearyl alcohol, behenyl alcohol and myristyl alcohol, and mixtures thereof.

[0034] liquid fatty alcohols

[0035] The liquid fatty alcohol of the application can be saturated or unsaturated.

[0036] The saturated liquid fatty alcohols are preferentially branched. They can optionally comprise at least one aromatic or nonaromatic ring in their structure. Preferentially, they are acyclic.

[0037] More particularly, the saturated liquid fatty alcohol of the application can be chosen from 2-octyldodecanol, isostearyl alcohol, 2-hexyldecanol, 2-butyloctanol and 2-undecylpentadecanol. Octyldodecanol is most particularly preferential.

[0038] The liquid unsaturated fatty alcohol contains at least one double or triple bond in its structure.

[0039] Preferentially, they bear one or more double bonds in their structure. When a plurality of double bonds is present, their number is preferentially 2 or 3 and they can be conjugated or unconjugated.

[0040] The liquid unsaturated fatty alcohol can be linear or branched. They can optionally comprise at least one aromatic or nonaromatic ring in their structure. Preferentially, they are acyclic.

[0041] More particularly, the liquid unsaturated fatty alcohol of the application is chosen from oleyl alcohol, linoleyl alcohol, linolenyl alcohol and undecylenyl alcohol, and mixtures thereof. Oleyl alcohol is particularly preferential.

[0042] In a preferential embodiment, the composition according to the application comprises at least two different fatty alcohols, including at least one solid fatty alcohol.

[0043] Preferentially, the composition according to the application comprises at least one solid fatty alcohol and at least one liquid fatty alcohol.

[0044] According to this embodiment, the hair conditioning properties are improved, especially a smoother feel, and the hair is softer and shinier.

[0045] Preferably, the ratio of the solid fatty alcohol / total fatty alcohol concentration by weight is greater than 0.25, and preferably ranges from 0.3 to 1, preferably 0.3 to 0.9, more particularly 0.35 to 0.8, or even 0.4 to 0.7.

[0046] The composition according to the application can comprise one or more solid fatty alcohols in a total amount ranging from 1 % to 25% by weight, preferably from 2% to 20% by weight, and more preferentially from 3% to 15% by weight, relative to the total weight of the composition.

[0047] The composition according to the application can comprise one or more liquid fatty alcohols in a total amount ranging from 1 % to 20% by weight, preferably from 1.5% to 15% by weight, and more preferentially from 2% to 10% by weight, relative to the total weight of the composition.

[0048] The composition according to the application can comprise one or more fatty alcohols in a total amount ranging from 5% to 25% by weight, preferably from 7% to 20% by weight, and more preferentially from 8% to 15% by weight, relative to the total weight of the composition.

[0049] C2-C6 monohydric alcohol

[0050] The composition according to the application comprises at least 20% by weight of one or more C2-C6 monohydric alcohols.

[0051] The C2-C6, preferably C2-C4 monohydric alcohol is especially ethanol, isopropanol, tert-butanol, n-butanol. Preferably, the monohydric alcohol used is ethanol.

[0052] Preferably, the C2-C6 alcohol is especially present in a total amount ranging from 20% to 95% by weight, preferably from 50% to 90% by weight, in particular ranging from 60% to 85% by weight, or even from 65% to 85% by weight, relative to the total weight of the composition.

[0053] Propellant

[0054] The aerosol device according to the application comprises a composition based on one or more propellants chosen from compressed gases.

[0055] As examples of compressed gases, mention can be made of air, nitrogen, carbon dioxide, and mixtures thereof. Preferably, the compressed gas is carbon dioxide.

[0056] The propellant is generally present in a total amount ranging from 1% to 10% by weight, preferably from 2% to 5% by weight relative to the total weight of the composition.

[0057] liquid fatty substance

[0058] The composition according to the application can comprise one or more liquid fatty substances other than liquid fatty alcohols.

[0059] The term "fatty substance" means an organic compound that is insoluble in water at ordinary ambient temperature (25°C) and at atmospheric pressure (760 mmHg, i.e. 1.013 10 5 Pa), the solubility of which in water being less than 5% by weight, preferably less than 1% by weight and even more preferentially less than 0.1% by weight. They have at least one hydrocarbon-based chain comprising at least 6 carbon atoms in their structure. In addition, the fatty substances are generally soluble under the same temperature and pressure conditions in organic solvents such as chloroform, dichloromethane, carbon tetrachloride, ethanol, benzene, toluene, tetrahydrofuran (THF), liquid petroleum jelly or decamethylcyclopentasiloxane. The fatty substances of the application are not etherified with oxyalkylenated or glycerolated groups. Preferentially, they do not contain a carboxylic acid function COOH in their structure.

[0060] The term "hydrocarbon" means a compound comprising only carbon and hydrogen atoms.

[0061] The term "fatty acid" means a compound comprising at least one linear or branched, saturated or unsaturated carboxylic acid function, comprising from 6 to 40 carbon atoms.

[0062] The term "fatty ester" means an ester of a fatty acid and / or of a fatty alcohol.

[0063] The term "fatty ether" means a compound comprising at least one linear or branched, saturated or unsaturated ether function, comprising at least one hydrocarbon-based radical comprising from 6 to 40 carbon atoms.

[0064] The term "non-silicone" means a compound whose structure does not comprise any silicon atom and thus especially does not comprise any siloxane group.

[0065] More preferentially, the liquid fatty substance is a non-silicone substance.

[0066] In particular, the fatty substance of the application is not a (poly)oxyalkylenated or (poly)glycerolated ether.

[0067] The term "oil" means a "fatty substance" that is liquid at ambient temperature (25°C) and at atmospheric pressure (760 mmHg or 1.013 10 5 Pa).

[0068] More particularly, the fatty substance is chosen from C6-C16 liquid hydrocarbons, liquid hydrocarbons comprising more than 16 carbon atoms, non-silicone oils of animal origin, oils of triglyceride type of plant or synthetic origin, fluoro oils, liquid esters of fatty acids and / or fatty alcohols other than triglycerides, liquid fatty ethers, dialkyl carbonates, and mixtures thereof.

[0069] In retrospect, the fatty esters and fatty acids more particularly contain at least one saturated or unsaturated, linear or branched hydrocarbon-based radical comprising from 6 to 40 carbon atoms and better still from 8 to 30 carbon atoms, this radical being optionally substituted in particular with one or more, in particular from 1 to 4, hydroxyl groups. If they are unsaturated, these compounds can comprise from 1 to 3 conjugated or non-conjugated carbon-carbon double bonds.

[0070] with regard to C6-C 16 liquid hydrocarbons, which can be linear or branched, optionally cyclic, and which are preferably alkanes. Examples that can be mentioned include hexane, cyclohexane, undecane, dodecane, tridecane or isoparaffins such as isohexadecane, isodecane or isododecane, and mixtures thereof. C6-C 16 Isoparaffins are particularly preferred, more preferentially isododecane.

[0071] linear or branched hydrocarbons of mineral or synthetic origin comprising more than 16 carbon atoms are preferably chosen from liquid paraffins, vaseline, liquid vaseline, polydecenes and hydrogenated polyisobutene such as Parleam®, Isolan® H40 and H80 (Süd-Chemie), and mixtures thereof. 4), and mixtures thereof.

[0072] oils of triglyceride of plant or synthetic origin are preferably chosen from liquid triglycerides of fatty acids comprising from 6 to 30 carbon atoms, such as heptanoic or octanoic acid triglycerides, or also, for example, sunflower oil, flax oil, olive oil, safflower oil, argan oil, corn germ oil, wheat germ oil, soybean oil, marrow seed oil, grapeseed oil, sesame oil, hazelnut oil, apricot oil, macadamia oil, jojoba oil, castor oil, avocado oil, caprylic / capric acid triglycerides such as those sold by the company Stearineries Dubois under the names Miglyol® 812, 818 and 840, or those sold by the company Dynamit Nobel under the name Peceol®, and mixtures thereof. 810, 812 and 818 sold by the company Stearineries Dubois), shea oil, and mixtures thereof.

[0073] fatty esters

[0074] With regard to the liquid esters of fatty acids and / or fatty alcohols other than the above-mentioned triglycerides and the fatty esters a) described above, mention can be made especially of saturated or unsaturated, linear C1-C 26 or branched C3-C 26 aliphatic mono- or polyacids and saturated or unsaturated, linear C1-C26 or branched C3-C 26 esters of aliphatic monoalcohols or polyalcohols, the total carbon number of these esters being greater than or equal to 10.

[0075] Preferably, for esters of monoalcohols, at least one of the alcohol or the acid which gives rise to the ester of the application is branched and / or unsaturated.

[0076] Among the monoesters, mention can be made of dihydroabietic acid behenate; octyldodecyl behenate; isocetyl behenate; decyl oleate; isocetyl isostearate; isocetyl laurate; isocetyl stearate; isodecyl octanoate; isodecyl oleate; isononyl isononanoate; isostearyl palmitate; methyl acetyl ricinoleate; octyl isononanoate; 2-ethylhexyl isononanoate; octyldodecyl erucate; oleyl erucate; ethyl palmitate, isopropyl palmitate, 2-ethylhexyl palmitate, 2-octyldecyl palmitate, alkyl myristates such as isopropyl 2-octyldodecyl myristate, isobutyl stearate; 2-hexyldecyl laurate, and mixtures thereof.

[0077] Preferably, among the monoesters of monoacids and monoalcohols, isopropyl palmitate, alkyl myristates such as isopropyl myristate, isocetyl stearate, 2-ethylhexyl isononanoate, isodecyl neopentanoate, isononyl isononanoate, and mixtures thereof will be used. Still in the context of this variant, C4-C 22 dicarboxylic or tricarboxylic acids and C1-C 22 esters of alcohols and mono-, di- or tricarboxylic acids and C2-C 26 esters of di-, tri-, tetra- or penta-hydroxy alcohols.

[0078] Mention can be made especially of: diethyl sebacate; diisopropyl sebacate; diisopropyl adipate; di-n-propyl adipate; dioctyl adipate; dioctyl maleate; glyceryl undecylenate; octyldodecyl stearoyl stearate; pentaerythrityl monoricinoleate; pentaerythrityl tetraisononanoate; pentaerythrityl tetralauroate; pentaerythrityl tetraisostearate; pentaerythrityl tetraoctanoate; propylene glycol dioctanoate; propylene glycol didecanoate; tridecyl erucate; triisopropyl citrate; glyceryl trilactate; glyceryl trioctanoate; propylene glycol dioctanoate; neopentyl glycol diheptanoate; diethylene glycol diisononanoate; and mixtures thereof.

[0079] The composition can also comprise as fatty ester C6-C 30 , and preferably C 12 -C 22Sugar esters and diesters of fatty acids. By way of recall, the term "sugar" means oxygen-bearing hydrocarbon-based compounds bearing several alcohol functions, with or without aldehyde or ketone functions, and comprising at least 4 carbon atoms. These sugars can be monosaccharides, oligosaccharides or polysaccharides.

[0080] Examples of suitable sugars that can be mentioned include sucrose, glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose and lactose, and derivatives thereof, especially alkyl derivatives, such as methyl derivatives, for example methyl glucose.

[0081] The esters of sugars with fatty acids can especially be chosen from the group comprising the esters described previously of linear or branched, saturated or unsaturated C6-C 30 , preferably C 12 -C 22 The esters or mixture of esters of fatty acids. If they are unsaturated, these compounds can comprise from 1 to 3 conjugated or non-conjugated carbon-carbon double bonds.

[0082] The esters according to this variant can also be chosen from monoesters, diesters, triesters and tetraesters, polyesters, and mixtures thereof.

[0083] These esters can be, for example, oleates, laurates, palmitates, myristates, behenates, cocoates, stearates, linoleates, linolenates, caprates and arachidonates, or mixtures thereof, such as mixed esters of oleopalmitate, oleostearate and palmitostearate, especially.

[0084] More particularly, monoesters and diesters are used, and especially mono- or di-oleates, stearates, behenates, oleopalmitates, linoleates, linolenates and oleostearates of sucrose, glucose or methyl glucose, and mixtures thereof.

[0085] An example that can be mentioned is the product sold under the name Glucate DO by the company Amerchol, which is a methyl glucose dioleate.

[0086] According to a preferred embodiment, it is also possible to use dialkyl carbonates, in particular dialkyl(C1-C 12 )carbonates, preferably dialkyl(C4-C 12 )carbonates, such as, especially, dioctyl carbonate.

[0087] fatty ethers

[0088] The liquid fatty ethers can be chosen from dialkyl ethers, in particular dialkyl(C1-C 12 )ethers, preferably dialkyl(C4-C 12 )ethers, such as, especially, dioctyl carbonate.​

[0089] Preferably, the composition according to the application comprises one or more liquid fatty substances other than liquid fatty alcohols. According to one embodiment, the liquid fatty substance(s) is / are chosen from C6-C 16 alkanes, in particular branched C8-C 16 alkanes, fatty ethers, dialkyl carbonates, and mixtures thereof.

[0090] According to one preferred embodiment, the liquid fatty substance(s) is / are chosen from branched C8-C 16 alkanes, di(Ci-C 12 alkyl ethers, dialkyl carbonates, and mixtures thereof. 12 alkanes, di(Ci-C 16 alkyl ethers, and mixtures thereof. 12 alkanes, di(Ci-C

[0091] Even more preferentially, the liquid fatty substance(s) is / are chosen from di(Ci-C 12 alkyl ethers, preferably di(C4-C 12 alkyl ethers, more particularly dioctyl ether.

[0092] The composition according to the application can comprise a total content of liquid fatty substances other than liquid fatty alcohols ranging from 1 % to 20% by weight, preferably from 2% to 15% by weight, preferably from 3% to 12% by weight, relative to the total weight of the composition.

[0093] The composition according to the application can be used for cosmetic use. For the purposes of the present application, the term “cosmetic” means a composition having a pleasant appearance, aroma and feel. Preferably, the composition is for topical application to the skin and keratin fibers, and more particularly to the scalp, the hair and the eyelashes, and even better still to the hair.

[0094] The composition according to the application can be in the form of an alcoholic or hydroalcoholic solution, in liquid or semi-liquid consistency.

[0095] When the composition according to the application comprises water, the water content in the composition according to the application is advantageously less than 10% by weight, preferably ranging from 1 % to 8% by weight, in particular from 1 % to 5% by weight, relative to the total weight of the composition.

[0096] Preferably, the composition according to the application is anhydrous.

[0097] For the purposes of the present application, the term "anhydrous" means a water content of less than 1% by weight, preferably less than 0.5% by weight, and better still the composition is free of water. In particular, the composition according to the application does not comprise any water added during its preparation, the residual water possibly being provided by the starting materials used during the preparation of the composition.

[0098] The composition according to the application can further comprise one or more additional organic solvents other than the C2-C6 monohydric alcohol and the liquid fatty substance described above, for example chosen from polyols, especially those containing from 2 to 6 carbon atoms, such as glycerol, propylene glycol, butylene glycol, pentylene glycol, hexylene glycol, dipropylene glycol or diethylene glycol; and polyol ethers, such as 2-butoxyethanol, propylene glycol monomethyl ether, and diethylene glycol monoethyl and monomethyl ether; and mixtures thereof.

[0099] Preferably, the composition according to the application comprises less than 10% by weight, preferably less than 5% by weight, more preferentially less than 2% by weight, better still less than 1% by weight, relative to the total weight of the composition, of polyol. More particularly, the composition is free of any polyol.

[0100] The composition according to the application can comprise one or more surfactants chosen from nonionic surfactants, anionic surfactants, amphoteric or cationic surfactants, and mixtures thereof.

[0101] The composition according to the application can also comprise one or more additional compounds chosen from natural or synthetic thickeners or viscosity regulators; UV screening agents, fillers such as pearlizers, titanium dioxide, resins and clays, fragrances, peptizers, vitamins, acidic agents, basic agents, colorants, pearlizers, opacifiers, film-forming polymers, fixing polymers, conditioning agents, solid fatty substances other than solid fatty alcohols, antioxidants and preservatives.

[0102] The person skilled in the art will choose the optional additional compounds and the amounts thereof with care so that they do not impair the properties of the composition of the application, in particular the solubilization of the fatty alcohol.

[0103] These additives can be present in the composition according to the application in an amount ranging from 0% to 20% by weight, relative to the total weight of the composition.

[0104] When the composition is aqueous, the pH of the composition according to the application ranges from 2 to 12, preferably from 2.5 to 9, preferentially from 3 to 8 and better still from 4 to 7.

[0105] The pH of the composition can be adjusted to the desired value by means of usual basifying or acidifying agents. Among the basifying agents, examples that can be mentioned include aqueous ammonia, alkanolamines and inorganic or organic hydroxides. Among the acidifying agents, examples that can be mentioned include mineral or organic acids, for instance hydrochloric acid, orthophosphoric acid, sulfuric acid, carboxylic acids such as acetic acid, tartaric acid, citric acid or lactic acid, and sulfonic acids.

[0106] The cosmetic composition can thus be rinsed off or left on after application to the keratin materials, for instance rinsed off with water after an optional leave-on time. The composition is preferably a leave-on composition.

[0107] Aerosol device

[0108] The aerosol device comprising the composition according to the application is constituted by a container containing said composition and a device for ejecting said composition.

[0109] Preferably, the aerosol device according to the application makes it possible to eject said composition in the form of a spray or mousse, preferably in the form of a spray.

[0110] The composition for use according to the application is packaged under pressure into an aerosol device, for instance an all-in-one device comprising an ejection device and a container.

[0111] The ejection device is generally constituted by a dispensing valve controlled by a dispensing head, which itself comprises a nozzle through which the composition of the application is ejected. This valve can comprise an additional air inlet.

[0112] The container containing the composition under pressure can be opaque or transparent. It can be made of glass, polymeric material or metal, and can optionally be coated with a protective varnish layer.

[0113] Another subject of the application is a process for styling and / or conditioning keratin fibers, in particular human keratin fibers such as the hair, comprising at least one step of applying to said fibers a composition as described previously.

[0114] This or these steps of applying the composition according to the application can optionally be preceded by at least one step of washing said fibers using a shampoo.

[0115] Furthermore, this or these steps of applying the composition according to the application can optionally be followed by a step of leaving the composition to act for a leave-on time of, for example, between 5 s and 15 min, in particular between 15 s and 5 min; then by an optional rinsing step, for instance with water; and / or a drying step.

[0116] Preferably, the keratin fibres are not rinsed after the step of applying the composition according to the application. The expression "not rinsed" means that, after the step of applying the composition according to the application, no step of rinsing the keratin fibres is carried out during a period of less than 30 minutes, preferably 20 minutes.

[0117] Preferably, the composition described previously is used on the hair to define the profile of the hair.

[0118] The following examples serve to illustrate the application, without in any way being limiting in nature.

[0119] Example

[0120] Example 1

[0121] Compositions 1 to 3 according to the application were prepared from the following ingredients, the content of which is indicated in the table below (in g of active material).

[0122] [Table 1]

[0123] Ingredients A1 (Invention) A2 (Invention) A3 (Invention) Cetyl Stearyl Alcohol 8.54 5.34 5.34 Oleyl Alcohol 2.13 5.34 5.34 Dicaprylyl Ether 9.70 9.70 4.85 CO2 3 3 3 Ethanol q.s. 100 q.s. 100 q.s. 100

[0124] Before pressurization of the composition (without propellant), it is observed that the solid fatty alcohol is dissolved in the composition according to the application. No fatty alcohol crystals are observed. The composition is transparent. The composition is stable over time.

[0125] The fluid is produced by cold dissolution of the fatty alcohol and of the dioctyl ether in ethanol. The fluid is then pressurized in an aluminium or PET container with a compressed gas. A valve and a spray-type button are added to ensure the dispensing of the product.

[0126] The application in the form of an aerosol spray makes it possible to distribute uniformly.

[0127] It is observed that the hair treated with these compositions according to the application is light, smooth to the touch, soft, shiny and frizz-free, with good hair styling properties (curl profile, frizz control and volume control). The sensation is neither greasy nor heavy.

[0128] Example 2

[0129] The compositions according to the application were prepared from the following ingredients, the content of which is indicated in the table below (in g of active material).

[0130] [Table 2]

[0131]

[0132]

[0133] The solid fatty alcohol was observed to be dissolved in the composition according to the application before pressurization of the composition (without propellant). No fatty alcohol crystals were observed. The composition was transparent. The composition was stable over time.

[0134] The fluid was produced by cold dissolution of the fatty alcohol and of the dioctyl ether in ethanol. The fluid was then pressurized with a compressed gas in an aluminum or PET container. A valve and a spray-type button were added to ensure the dispensing of the product.

[0135] The application in the form of an aerosol spray makes it possible to distribute uniformly.

[0136] The hair treated with these compositions according to the application is light, smooth to the touch, soft, shiny and frizz-free, with good hair styling properties (curl profile, frizz control and volume control). The sensation is neither greasy nor heavy.

Claims

1. An aerosol device, the aerosol device comprising a composition, the composition comprising: a) 5% to 25% by weight of one or more fatty alcohols relative to the total weight of the composition, the composition comprising at least one or more solid fatty alcohols and at least one liquid fatty alcohol, wherein the ratio of the solid fatty alcohol to the total fatty alcohol concentration by weight is greater than 0.25, wherein the at least one solid fatty alcohol is selected from cetyl alcohol, stearyl alcohol, and mixtures thereof, and the at least one liquid fatty alcohol is selected from isostearyl alcohol, 2-hexyldecyl alcohol, oleyl alcohol, linoleyl alcohol, linolenic acid alcohol, and mixtures thereof; b) 60% to 85% by weight of one or more C2-C6 monohydric alcohols relative to the total weight of the composition, wherein the C2-C6 monohydric alcohols are selected from ethanol and isopropanol; c) at least one or more propellants selected from air, nitrogen, and carbon dioxide, at a weight of 1% to 10% relative to the total weight of the composition, and d) 3% to 12% by weight of a liquid fatty substance other than a liquid fatty alcohol relative to the total weight of the composition, wherein the liquid fatty substance is selected from dioctyl ether; This composition does not contain fixed polymers.

2. The aerosol device according to claim 1, characterized in that, The total content of the solid fatty alcohols relative to the total weight of the composition ranges from 1% to 20% by weight.

3. The aerosol device according to any one of claims 1-2, characterized in that, The total content of the liquid fatty alcohol relative to the total weight of the composition ranges from 1.5% to 15% by weight.

4. The aerosol device according to any one of claims 1-2, characterized in that, The fatty alcohol is dissolved in the composition.

5. The aerosol device according to any one of claims 1-2, characterized in that, The composition contains less than 10% by weight of a polyol relative to the total weight of the composition.

6. The aerosol device according to any one of claims 1-2, characterized in that, The composition is anhydrous.

7. The aerosol device according to any one of claims 1-2, characterized in that, The total content of the fatty alcohols relative to the total weight of the composition ranges from 7% to 20% by weight, the total content of the solid fatty alcohols ranges from 3% to 15% by weight, and the total content of the liquid fatty alcohols ranges from 2% to 10% by weight.

8. The aerosol device according to claim 1, characterized in that, The ratio of the solid fatty alcohol to the total fatty alcohol concentration by weight is 0.35 to 0.

8.

9. A method for shaping and / or conditioning keratin fibers, the method comprising at least one step of applying a composition ejected from an aerosol device as defined in any one of claims 1 to 8 to the fibers.

10. Use of a composition ejected from an aerosol device as defined in any one of claims 1 to 8 for shaping and / or conditioning keratin fibers.

11. The use according to claim 10, for providing softness, smoothness, non-sticky feel and shine, for promoting hair straightening, for defining hair curl profile, and for providing control over hair frizz and volume.

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