TRANSPARENT composition for cleansing and conditioning hair

Abstract

Transparent composition for cleansing and conditioning hair. The present invention relates to a transparent composition for cleansing and conditioning hair comprising: a) at least one anionic surfactant; b) at least one amphoteric surfactant; c) at least one cationic surfactant selected from fatty amidoamines corresponding to the following formula (Ia) and their salts: RCONHR″N(R′)2 (Ia) in which R is an acyclic, linear or branched alkyl or alkenyl group containing from 16 to 22 carbon atoms; R″ is a divalent hydrocarbon radical containing less than 6 carbon atoms; and the R′s, which may be identical or different, represent a hydrocarbon radical containing less than 6 carbon atoms; and d) at least one liquid fatty alcohol.The present invention also relates to a hair cleansing and conditioning process comprising applying the composition according to the present invention to the hair, then rinsing the hair with water after an optional exposure period. Figure for the abstract: NONE.

Description

Description Title of the invention: TRANSPARENT composition for the hair cleansing and conditioning technical field

[0001] — The present invention relates to a transparent composition for cleaning and Hair conditioning. The present invention also relates to a process for cleansing and conditioning hair. art context

[0002] = Hair is generally damaged and weakened by the action of atmospheric agents external spherical factors such as light, weathering, and / or the action of treatments mechanical or chemical processes such as brushing, combing, dyeing, bleaching, perms and / or hair straightening.

[0003] — Cleaning compositions typically contain anionic surfactants. Anionic surfactants such as sodium lauryl sulfate have de- properties detergents and are very effective at removing dirt and oil.

[0004] — For example, document US20210267867A1 discloses a cleaning composition for hair comprising: (a) about 8 to about 20% by weight of a surfactant anionic sulfate-based; (b) about 1 to about 4% by weight of a surfactant amphoteric; (c) about 4 to about 10% by weight of a plurality of non-amphoteric surfactants ionic, the plurality of nonionic surfactants comprising: (i) approximately 1 to approximately 1.5% by weight of a fatty alcohol, (ii) approximately 1.5 to approximately 3% by weight of a glucamide, and (iii) about 1.5 to about 5.5% by weight of an alkanolamide that is not not glucamide, (d) about 0.5% by weight or more of a non-silicone oil; and (e) of water, in which all percentages by weight are based on the total weight of the hair cleansing composition.

[0005] = Document WO2017083943A1 discloses a cosmetic agent for hair multi-component hair cleansing and conditioning agent, cosmetic agent for hair comprising: a) a first cosmetic composition comprising: i) a mixture of surfactants comprising at least one anionic surfactant and at least one amphoteric surfactant; ii) at least one amino silicone; iii) at least one calcium polymer tionic acid; and iv) water; and b) a second cosmetic composition comprising: i) at at least one fatty alcohol; ii) at least one cationic surfactant; iii) at least one oily component; and iv) water.

[0006] — Anionic surfactants lift the hair cuticle for cleansing by depth, but raised and rough cuticles also lead to frizz in the hair. In addition, consumers generally find that the products products containing anionic surfactants can be too drying and damaging with frequent use, and therefore they choose mild cleansing compositions that have low levels of anionic surfactants. However, gentle cleansing formulas have drawbacks. Due to their low detergent power, excess oils and styling products may not be effectively removed from the hair. This can leave hair feeling flat and greasy, and even with repeated use, these products may not leave hair feeling clean. Consumers are therefore always looking for optimized cleansing compositions that offer adequate hair cleansing properties and, at the same time, good hair conditioning. It has been observed that when a cationic surfactant is added to a shampoo containing an anionic surfactant, flocculation can be generated, making the entire system unstable. It is desired that the shampoo have a transparent appearance. Therefore, there is still a need to develop stable compositions for cleansing and conditioning hair. Summary of the invention An object of the present invention is therefore to develop compositions for the cleansing and conditioning of hair, which are stable and transparent. Another object of the present invention is to propose a process for cleaning and conditioning hair. Thus, according to a first aspect, the present invention proposes a transparent composition for cleansing and conditioning hair comprising: a) at least one anionic surfactant; b) at least one amphoteric surfactant; c) at least one cationic surfactant selected from fatty amidoamines corresponding to the following formula (la) and their salts: RCONHR”N(R”). (Ia) in which R is an acyclic alkyl or alkenyl group, linear or branched, containing 16 to 22 carbon atoms; R” is a divalent hydrocarbon radical containing fewer than 6 carbon atoms; and The R° symbols, which may be identical or different, represent a hydrocarbon radical containing fewer than 6 carbon atoms; and d) at least one liquid fatty alcohol. According to a second aspect, the present invention proposes a hair cleansing and conditioning process comprising the application of the composition such as described above on the hair, then rinsing the hair with water after an optional period of exposure. The inventors have found that the composition according to the present invention can ensure a good cleaning and conditioning effect. The composition according to the present invention remains stable at high temperatures (e.g. 45 °C), at room temperature (25 °C), and at reduced temperature (e.g. 4 °C) for at least two months. Other subjects and features, aspects and advantages of the present invention will become even clearer upon reading the detailed description and examples that follow. DETAILED DESCRIPTION OF THE INVENTION As used here, unless otherwise stated, the limits of a range of values ​​are included in that range, particularly in the expressions "between ... and ..." and "from ... to ... H As used here, the term "including" should be interpreted as encompassing all specifically mentioned features as well as fa- optional, supplementary and unspecified features. As used here, the use of the term "including" also discloses the embodiment in which no features other than those specifically mentioned are present (i.e., "consisting of"). Unless otherwise defined, all technical and scientific terms used herein have the same meaning as that commonly understood by persons competent in the field to which this invention relates. Where the definition of a term in this description conflicts with the meaning commonly understood by persons competent in the field to which this invention relates, the definition described herein shall prevail. Unless otherwise stated, all numerical values ​​expressing a quantity of ingredients and similar terms used in the description and claims should be understood as modified by the term "approximately". Consequently, unless otherwise stated, the numerical values ​​and parameters described herein are approximate values ​​that may be adjusted as needed to achieve the desired performance. As used here, the expression "at least one" used in this description is equivalent to the expression "one or more". As used here, the term "conditioning" means giving hair at least one property chosen from compatibility, manageability, moisture retention, luster, shine, softness, and suppleness. The state of conditioning is assessed by comparing hair treated with the composition to be tested with hair treated with a commercial product. As used here, the term "stable" means that the composition does not phase out. The term "transparent" in relation to a transparent composition indicates that the composition has a transmittance of at least 80% at a wavelength of 600 nm, for example, as measured using a Lambda 40 UV-visible spectrometer. Compositions may have, for example, a transmittance of at least 80%, at least 90%, or at least 95% at a wavelength of 600 nm, as measured, for example, using a Lambda 40 UV-visible spectrometer. The term "transparent" is interchangeable with the term "clear" for the purposes of this disclosure. The term "transparent" may also mean that an article is visible to the human eye when the composition contained in a clear glass vial is observed. According to the first aspect of the present invention, a transparent composition for cleansing and conditioning hair comprises: a) at least one anionic surfactant; b) at least one amphoteric surfactant; c) at least one cationic surfactant selected from the fatty amidoamines corresponding to the following formula (IIla) and their salts: RCONHR”N(R”). (IIIa) in which R is an acyclic alkyl or alkenyl group, linear or branched, containing 16 to 22 carbon atoms; R” is a divalent hydrocarbon radical containing fewer than 6 carbon atoms; and The R° symbols, which may be identical or different, represent a hydrocarbon radical containing fewer than 6 carbon atoms; and d) at least one liquid fatty alcohol. Anionic surfactants According to the first aspect of the present invention, the composition comprises at least one anionic surfactant. Anionic surfactant is defined as a surfactant comprising, as ionic or ionizable groups, only anionic groups. In the present description, a species is referred to as "anionic" when it carries at least one permanent negative charge or when it can be ionized into a negatively charged species, under the conditions of use of the composition of the invention (for example the medium or the pH) and having no cationic charge. Anionic surfactants can be sulfate, sulfonate, and / or carboxylic (or carboxylate) type. It goes without saying that a mixture of these surfactants can be used. It is understood in this description that: - Anionic carboxylate surfactants include at least one carboxylic or carboxylate function (-COOH or -COO”) and may optionally also include one or more sulfate and / or sulfonate functions; - Anionic sulfonate surfactants comprise at least one sulfonate function (-SO;H or -SO4) and may optionally also comprise one or more sulfate functions, but do not comprise carboxylate functions; and - Anionic sulfate surfactants include at least one sulfate function but do not include carboxylate or sulfonate functions. Usable carboxylic anionic surfactants therefore include at least one carboxylic or carboxylate function (-COOH or -COO-). They can be chosen from the following compounds: acylglycinates, acyllactylates, acylsarcosinates, acylglutamates; alkyl-D-galactosideuronic acids, alkyl ether carboxylic acids, alkyl(C6-30 aryl) ether carboxylic acids, al- alkylamide ether carboxylic acids; as well as the salts of these compounds; the alkyl and / or acyl groups of these compounds comprising from 6 to 30 carbon atoms, in particular from 12 to 28, better still from 14 to 24 or even from 16 to 22 carbon atoms; the aryl group preferably designating a phenyl or benzyl group; these compounds being possibly polyoxyalkylated, in particular polyoxyethylated, and then preferably comprising from 1 to 50 ethylene oxide motifs and even better from 2 to 10 ethylene oxide motifs. C6-C24 alkyl monoesters of polyglycoside-polycarboxylic acids, such as C6-C24 alkyl polyglycoside citrates, C6-C24 alkyl polyglycoside tartrates and C6-C24 alkyl polyglycoside sulfosuccinates, and their salts, can also be used. Among the carboxylic surfactants mentioned above, special mention should be made of polyoxyalkylened alkyl(amido) ether carboxylic acids and their salts, particularly those containing 2 to 50 alkylene oxide groups and especially ethylene oxide, such as the compounds marketed by the Kao company under the name Akypo, The polyoxyalkylened alkyl (amido) ether carboxylic acids that can be used are preferably chosen from those of formula (1): HR FOC / H 77 QCH.COOA ti} in which: - R, represents a linear or branched C6-C24 alkyl or alkenyl radical, an alkyl(C8-C9)phenyl radical, an RCONH-CH2-CH2- radical with R, designating a linear or branched C9-C21 alkyl or alkenyl radical, Preferably, R is an alkyl radical in C8-C20 and preferably in C8-C18, and aryl preferably designates phenyl, - is an integer or decimal number (average value) ranging from 2 to 24 and preferably from 2 to 10, - A designates H, ammonium, Na, K, Li, Mg or a remnant of monoethanolamine or triethanolamine. It is also possible to use mixtures of compounds of formula (1), in particular mixtures of compounds containing different R groups. The polyoxyalkylened alkyl(amido)ether carboxylic acids that are particularly preferred are those of formula (1) in which: - R, designates a C12-C14 alkyl radical, cocoyl, oleyl, nonylphenyl or octylphenyl, - A designates a hydrogen or sodium atom, and - n varies from 2 to 20 and preferably from 2 to 10. Preferably, compounds of formula (1) are used in which R; denotes a C12 alkyl radical, A denotes a hydrogen or sodium atom and n varies from 2 to 10. Preferably, carboxylic anionic surfactants are chosen, alone or in mixtures, from among: - acylglutamates, particularly in C6-C24, or even in C12-C20, such as stearoyl-glutamates, and in particular disodium stearoylglutamate; - acylsarcosinates, particularly in C6-C24, or even in C12-C2D0, such as palmitoylsarcosinates, and in particular sodium palmitoylsarcosinate; - acyllactylates, particularly in C12-C28, or even in C14-C24, such as behenoyllactylates, and in particular sodium behenoyllactylate; - acylglycinates in C6-C24 and especially in C12-C20; - C6-C24 alkyl ether carboxylates and in particular C12-C20 alkyl ether carboxylates; - polyoxyalkylened alkyl (C6-C24) (amido) ether carboxylic acids, in particular those which have 2 to 50 ethylene oxide groups; in particular in the form of alkali or alkaline earth metal salts, ammonium or amino alcohol. Usable anionic sulfonate surfactants include at least one sulfonate function (-SO4H or -SO4). They can be chosen from the following compounds: alkylsulfonates, alkylamide sulfonates, alkylarylsulfonates, α-olefin sulfonates, paraffin sulfonates, alkylsulfosuccinates, alkyl ether sulfosuccinates, alkylamide sulfosuccinates, alkylsulfoacetates, N-acyltaurates, acylisethionates; alkylsulfolaurates; as well as salts of these compounds; the alkyl groups of these compounds comprising from 6 to 30 carbon atoms, in particular from 12 to 28, better still from 14 to 24 or even from 16 to 22 carbon atoms; the aryl group preferably designating a phenyl or benzyl group; these compounds being possibly polyoxyalkylated, in particular polyoxyethylated, and then preferably comprising from 1 to 50 ethylene oxide motifs and even better from 2 to 10 ethylene oxide motifs. Preferably, anionic sulfonate surfactants are chosen, alone or in mixtures, from among: - C6-C24 alkylsulfosuccinates and especially C12-C20 alkylsulfosuccinates, in particular laurylsulfosuccinates; - alkyl ether sulfosuccinates in C6-C24 and especially in C12-C20; - C6-C24 acylisethionates and preferably C12-C18 acylisethionates, in particular in the form of alkali or alkaline earth metal salts, ammonium or amino alcohol. Usable sulfated anionic surfactants contain at least one sulfate function (-OSO4H or -OSO-4-). They can be chosen from the following compounds: alkyl sulfates, alkyl ether sulfates, alkylamido ether sulfates, alkylaryl polyether sulfates, monoglyceride sulfates; as well as the salts of these compounds; the alkyl groups of these compounds comprising from 6 to 30 carbon atoms, in particular from 12 to 28, better still from 14 to 24 or even from 16 to 22 carbon atoms; the aryl group preferably designating a phenyl or benzyl group; these compounds being possibly polyoxyalkylated, in particular polyoxyethylated, and then preferably comprising from 1 to 50 ethylene oxide motifs and even better from 2 to 10 ethylene oxide motifs. Preferably, anionic sulfate-type surfactants are chosen, alone or in mixtures, from among: - alkyl sulfates, particularly C6-C24, and even C12-C20, - alkyl ethersulfates, especially in C6-C24, or even in C12-C20, preferably comprising 2 to 20 ethylene oxide motifs; particularly in the form of alkali or alkaline earth metal salts, ammonium or amino alcohol. When the anionic surfactant is in salt form, said salt may be chosen from alkali metal salts, such as sodium or potassium salts, ammonium salts, amine salts and in particular amino alcohol salts, alkaline earth metal salts, such as magnesium salt. Among the amino alcohol salts that can be mentioned, we can include the salts of mo- monoethanolamine, diethanolamine and triethanolamine, the salts of monoisopropanolamine, diisopropanolamine or triisopropanolamine, the salts of 2-amino-2-methyl-1-propanol, 2-amino-2-methyl-1,3-propanediol salts and tris(hydroxymethyl)aminomethane salts. Alkali or alkaline-earth metal salts are preferred, and in particular sodium or magnesium salts. Preferably, anionic surfactants are chosen, alone or in mixtures, from among: - Alkyl sulfates in C6-C24 and especially in C12-C20; -C6-C24 alkyl ether sulfates and especially C12-C20; preferably comprising 2 to 20 ethylene oxide motifs; -C6-C24 alkylsulfosuccinates, particularly C12-C20 alkylsulfosuccinates, and especially laurylsulfosuccinates: - alkyl ether sulfosuccinates in C6-C24 and especially in C12-C20; -C6-C24 acylisethionates and preferably C12-C18 acylisethionates; - acylsarcosinates in C6-C24 and especially in C12-C20; in particular palmitoylsarcosinates; - C6-C24 alkyl ether carboxylates, preferably C12-C20 alkyl ether carboxylates; - C6-C24 polyoxyalkylened alkyl (amido) ether carboxylic acids and their salts, in particular those comprising 2 to 50 alkylene oxide groups and especially ethylene oxide; - acylglutamates in C6-C24 and especially in C12-C20; - acylglycinates in C6-C24 and especially in C12-C20; in particular in the form of alkali metal salts such as sodium or alkaline earth metal, ammonium or amino alcohol. Preferably, the anionic surfactant is chosen from sodium laureth sulfate, sodium lauryl sulfate, and a mixture of these. Advantageously, the anionic surfactant is present in an amount ranging from 8% by weight to 16% by weight, preferably from 10% by weight to 15% by weight, more preferably from 12% by weight to 14% by weight, relative to the total weight of the composition. Amphoteric surfactants According to the first aspect of the present invention, the composition comprises at least one amphoteric surfactant. The amphoteric surfactants that can be used in the present invention may be optionally quaternized secondary or tertiary aliphatic amine derivatives, in which the aliphatic group is a linear or branched chain. comprising 8 to 22 carbon atoms, said amine derivatives having at least one anionic group, for example a carboxylate, sulfonate, sulfate, phosphate or phosphonate group. Examples include betaine and (C8-C20)alkylbetaines. (C8-C20)alkylsulfobetaines, (C8-C20)alkylamido(C1-C6)alkylbetaines, such as co-camidopropylbetaine, (C8-C20)alkylamido(C1-C6)alkylsulfobetaines, and mixtures thereof. Among the optionally quaternized secondary or tertiary aliphatic amine derivatives that can be used, we can also mention the products with respective structures (A1) and (A2) below: (A1) R,-CON(Z)CH,-{CH),-N*(R,)(R.)(CH,COO-) in which: R represents a C10-C30 alkyl or alkenyl group derived from a Ra-COOH acid preferably found in hydrolyzed coconut oil, a heptyl group, a nonyl group, or an undecyl group. R represents an fB-hydroxyethyl group. R. represents a carboxymethyl group; my is equal to 0, 1 or 2, Z represents a hydrogen atom or a hydroxyethyl or carboxymethyl group; (A2) R,-CON(Z)CH,-(CH»)»-N(B\(B') in which: B represents -CH,CH,OX", with X' representing -CH,-COOH, CH--COOZ', CH:CH 2-COOH, -CH,CH,-COOZ”, or a hydrogen atom, B' represents -(CHz),-Y', with z = 1 or 2, and Y' representing COOH, COOZ”, CH; - CHOH-SO-4H or -CH,-CHOH-SO,Z*, m° is equal to 0, 1 or 2, Z represents a hydrogen atom or a hydroxyethyl or carboxymethyl group, Z' represents an ion resulting from an alkali or alkaline earth metal, such as sodium, potassium or magnesium; an ammonium ion; or an ion resulting from an organic amine and in particular from an amino alcohol, such as monoethanolamine, diethanolamine and triethanolamine, monoisopropanolamine, diisopropanolamine or triisopropanolamine, 2-amino-2-methyl-1-propanol, 2-amino-2-methyl-1,3-propanediol and tris(hydroxymethyl)aminomethane, Ry represents a C10-C30 alkyl or alkenyl group of an R,COOH acid preferably present in hydrolyzed linseed or coconut oil, an alkyl group, in particular a C17 alkyl group, and its iso form, or a C17 unsaturated group. Compounds conforming to formula (A2) are preferred. Among the compounds corresponding to formula (A2) in which X° represents a hydrogen atom, we can cite the compounds classified in the CTFA dictionary, under the names sodium cocoamphoacetate, sodium lauroamphoacetate, sodium caproamphoacetate and sodium capryloamphoacetate. Other compounds corresponding to formula (A2) are disodium cocoamphodiacetate, disodium lauroamphodiacetate, disodium caproamphodiacetate, disodium capryloamphodiacetate, disodium cocoamphodipropionate, disodium lauroamphodipropionate, disodium caproamphodipropionate, disodium capryloamphodipropionate, lauroamphodipropionic acid and cocoamphodipropionic acid. Examples include cocoamphodiacetate sold by Rhodia under the trade name Miranol® C2M Concentrate, sodium cocoamphoacetate sold under the trade name Miranol Ultra C 32 and the product sold by Chimex under the trade name CHIMEXANE HA. We can also use compounds with formula (A3): (A3) R,-NH-CH(Y”')-(CH,),-C(0)-NH-(CH”,),-N(R:)(Re) in which: - Ra" represents a C10-C30 alkyl or alkenyl group of an acid R,--C(O)OH preferably present in hydrolyzed linseed or coconut oil; - Y'' represents the group -C(O)OH, -C(O)OZ””, -CH,-CH(OH)-SO;H or the group CH,-CH(OH)-SOz-Z”, with Z”' representing a cationic counter-ion resulting from an alkali or alkaline earth metal, such as sodium, an ammonium ion or an ion resulting from an organic amine; - Ra and R. designate, independently of each other, a C1-C4 alkyl or hydroxyalkyl radical; and -netn' denote, independently of each other, an integer ranging from 1 to 3. Among the compounds corresponding to the formula (A3), we can notably mention the compound classified in the CTFA dictionary under the name diethylaminopropyl cocoas- sodium partamide, such as that marketed by the company Chimex under the name CHIMEXANE HB. Preferably, the amphoteric surfactant is chosen from (C8-C20)alkylbetaines, (C8-C20)alkylamido(C1-C6)alkylbetaines, (C8-C20)alkylamphoacetates and (C8-C20)alkylamphodiacetates, and mixtures thereof, and especially chosen from co-cobetaine and cocoamidopropylbetaine. Advantageously, the amphoteric surfactant is present in an amount ranging from 0.1% by weight to 3% by weight, preferably from 1% by weight to 2% by weight, more preferably from 1.2% by weight to 1.8% by weight, relative to the total weight of the composition. Cationic surfactants According to the first aspect of the present invention, the composition comprises at least a cationic surfactant chosen from fatty amidoamines corresponding to the following formula and their salts: RCONHR”N(R”), (Ia) in which R is an acyclic alkyl or alkenyl group, linear or branched, containing 16 to 22 carbon atoms: R” is a divalent hydrocarbon radical containing fewer than 6 carbon atoms; and The R°, which can be identical or different, represent a hydrocarbon radical containing less than 6 carbon atoms. Preferably, R” is a divalent hydrocarbon radical containing 2 or 3 carbon atoms. Preferably, the R° groups, which may be identical or different, are linear or branched, saturated or unsaturated, substituted or unsubstituted. Even more preferably, the R' groups are methyl groups. Generally, an acid neutralizer is also contained to cationize fatty amidoamine. Non-limiting examples include oleamidopropyl dimethylamine, stearamidopropyl dimethylamine, isostearamidopropyl dimethylamine, stearamidoethyl dimethylamine, behenamidopropyl dimethylamine, palmitamidopropyl dimethylamine, brassicamidopropyl dimethylamine, stearamidoethyl diethylamine, and mixtures thereof. Preferably, the cationic surfactant is chosen from stearamidopropyl dimethylamine, brassicamidopropyl dimethylamine, and mixtures thereof. Advantageously, the cationic surfactant is present in an amount ranging from 0.1% by weight to 2% by weight, preferably from 0.2% by weight to 1.5% by weight, more preferably from 0.4% by weight to 0.8% by weight, relative to the total weight of the composition. Liquid fatty alcohols According to the first aspect of the present invention, the composition comprises a combination of surfactants comprising at least one liquid fatty alcohol. The term "liquid fatty alcohol" refers to a non-glycerolized and non-oxy-alkylated fatty alcohol that is liquid at standard temperature (25 °C) and atmospheric pressure (760 mmHg; i.e., 1.013 x 105 Pa). Preferably, the liquid fatty alcohols of the invention comprise from 8 to 30 carbon atoms, preferably from 12 to 24 carbon atoms, and more preferably from 14 to 22 carbon atoms. The liquid fatty alcohols of the invention can be saturated or unsaturated. Saturated liquid fatty alcohols are preferably branched. They may optionally include in their structures at least one aromatic or non-aromatic ring. They are preferably acyclic. More specifically, the saturated liquid fatty alcohols of the invention are selected from octyldodecanol, isostearyl alcohol and 2-hexyldecanol. Isostearyl alcohol is particularly preferred as a liquid saturated fatty alcohol. Liquid unsaturated fatty alcohols have at least one double or triple bond in their structure. Preferably, the fatty alcohols of the invention have one or more double bonds in their structure. When several double bonds are present, they are preferably two or three in number, and they may be conjugated or non-conjugated. These unsaturated fatty alcohols can be linear or branched. They may optionally include, in their structures, at least one aromatic or non-aromatic ring. They are preferably acyclic. More specifically, the liquid unsaturated fatty alcohols of the invention are chosen from oleic (or oleyl) alcohol, linoleic (or linoleyl) alcohol, linolenic (or linolenylic) alcohol and undecylenic alcohol. In the composition of the invention, oleyl alcohol is particularly preferred as a liquid unsaturated fatty alcohol. Preferably, the liquid fatty alcohol is chosen from octyldodecanol, isostearyl alcohol, 2-hexyldecanol, oleyl alcohol, linoleyl alcohol, linolenylic alcohol, undecylenic alcohol, and mixtures thereof. Advantageously, the liquid fatty alcohol is present in an amount ranging from 0.1% by weight to 5% by weight, preferably from 0.2% by weight to 3% by weight, and more preferably from 0.5% by weight to 1.5% by weight, relative to the total weight of the composition Aqueous phase The composition according to the present invention comprises an aqueous phase. Preferably, the aqueous phase is a continuous phase. The aqueous phase of the present invention comprises water. The aqueous phase may also include water-miscible organic solvents (at room temperature of 20-25°C), for example polyols such as C2-C6 polyols, particularly glycerin, hexylene glycol; glycol ethers (containing in particular 3 to 16 carbon atoms) such as (C1-C4) alkyl ethers of mono-, di- or tripropylene glycol, (C1-C4) alkyl ethers of mono-, di- or triethylene glycol, and mixtures thereof. According to the invention, the aqueous phase is present in an amount ranging from 70% by weight to 90% by weight, preferably from 75% by weight to 85% by weight, relative to the total weight of the composition. Additional ingredients The composition according to the present invention may also include any other additional ingredient commonly used in the field of self-cleaning products, in particular shampoos. A person skilled in the art can choose the quantity of additional ingredients so as not to have a negative impact on the final use of the composition according to the present invention. For example, these additional ingredients include pH correctors, thickeners, preservatives, sequestrants and chelators, consistency regulators, antioxidants, perfumes, dyes such as soluble dyes and pigments, optical brighteners, electrolytes and stabilizers, plant extracts, proteins, amino acids, vitamins, glycols, emollients, derivatives of the above, and mixtures thereof. Non-limiting examples of pH-correcting agents include potassium acetate, potassium hydroxide, sodium carbonate, sodium hydroxide, phosphoric acid, succinic acid, tartaric acid, sodium citrate, tartaric acid, citric acid, salicylic acid, glutamic acid, maleic acid, aspartic acid, boric acid, lactic acid, sodium hydrogen carbonate, ethanolamines and mixtures thereof. The pH correcting agent is used in such an amount that the pH of the composition of the present invention is less than or equal to 6, preferably from 3.5 to 5.8, more preferably from 4 to 5.6. According to a preferred embodiment, the present invention provides a transparent composition for cleansing and conditioning hair comprising, relative to the total weight of the composition: a) from 12% by weight to 14% by weight of at least one anionic surfactant; b) from 1.2% by weight to 1.8% by weight of at least one amphoteric surfactant; (c) from 0.4% by weight to 0.8% by weight of at least one cationic surfactant selected from oleamidopropyl dimethylamine, stearamidopropyl dimethylamine, isostearamidopropyl dimethylamine, stearamidoethyl dimethylamine, behenamidopropyl dimethylamine, palmitamidopropyl dimethylamine, brassicamidopropyl dimethylamine, stearamidoethyl diethylamine and mixtures thereof; and d) from 0.5% by weight to 1.5% by weight of at least one fatty alcohol selected from octyl-dodecanol, isostearyl alcohol, 2-hexyldecanol, oleyl alcohol, linoleyl alcohol, linolenylic alcohol, undecylenic alcohol, and mixtures thereof. Preparation and use The composition according to the present invention can be prepared by mixing the ingredients. ingredients a) to d), as essential ingredients, as well as one or more additional ingredients, as explained above. The method and means for mixing the essential and optional ingredients above are not limited. Any conventional method and means may be used to mix the essential and optional ingredients above in order to prepare the composition according to the present invention. The composition according to the present invention may have a gel-like texture. According to the second aspect of the present invention, a hair cleaning and conditioning process includes applying the composition as described above to the hair, then rinsing with water after an optional exposure period. The following examples are given by way of illustration of the present invention and shall not be construed as limiting its scope. EXAMPLES The main raw materials used, their trade names and suppliers are listed in Table 1. [Table 1] [INCI Name [Trade Name [Supplier |TEXAPONEN 701 [BASF [DEHYTON®PK 45 [BASF DEHYQUART® TO OR | BASF [PROCONDITIONT* 22 | INOLEX CHEMICAL COMPANY [HD OCENOL 80 / 85V | BASF Cetearyl alcohol |LANETTE®OOU | |BASF |Tartaric acid NATURAL L(+) INDUSTRIA CHIMICA TARTARIC ACID VALENZANA |Sodium benzoate | |PROBENZ"M SG EASTMAN SODIUM BENZOATE |CHEMICAL FOOD GRADE KOSHER Inventive examples 1-3 and comparative examples 1-3 The shampoos according to inventive examples (IE) 1-3 and comparative examples (CE) 1-3 were prepared with the ingredients listed in Table 2 (the contents are expressed as percentages by weight of active material relative to the total weight of each shampoo, unless otherwise indicated): [Tables 2] |ET. 1 |Er.2 |er.3 |Ec. 1 |Ec.2 |EC.3 [13.8 3 [13.8 [L5 [L5 [L5 [L5 |L5 |L5 jer qJ6 + Hs [Ingredients |Er. 1 |Er. 2 |Er. 3 |Ec. 1 |EC. 2 |E Laureth sulfate of [138 [ls [as [as [as | sodium Cocamidopropyl |L5 |L5 |Ls |L5 |L5 E betaine Brassicamidopropyl |0.5 Jo “Jos | | “Jo dimethylamine Ce- chloride | | | Jos Jos | trimonium [Oleyl alcohol [12 075 |Ls [12 |- Cetearyl alcohol |- | E q2 1 2 Sodium benzoate |0.2 0.2 02 joz Jos 0.2 Tartaric acid 0.08 0.08 0.08 | | 0.08 The shampoos of inventive examples (EL) 1-3 are compositions according to the present invention. The shampoo in comparative example (EC.) 1 comprises cetrimonium chloride and cetearyl alcohol instead of a cationic surfactant selected from fatty amidoamines and a fatty monoalcohol in C;>-C4, which is liquid at 20 °c. The shampoo in comparative example (EC.) 2 includes cetrimonium chloride instead of a cationic surfactant chosen from fatty amidoamines. The shampoo in comparative example (EC.) 3 includes cetearyl alcohol instead of a fatty monoalcohol in C,7-C3, which is liquid at $20. Preparation procedure: Each shampoo was prepared as follows, taking the shampoo from inventive example 1 to illustrate. 1) Add sodium laureth sulfate, cocamidopropyl betaine, and sodium benzoate to water with stirring to form a shampoo base. ambient temperature; 2) mix brassicamidopropyl dimethylamine and oleoyl alcohol by stirring to form a p phase; 3) Introduce phase p into the shampoo base, then add tartaric acid to correct the pH, and the shampoo was obtained. Assessment : The stability of each shampoo obtained was evaluated as follows. A shampoo was stored at 4°C, room temperature (25°C), and 45°C for two months and observed visually to determine its transparency. It will be considered stable if it is transparent at 4°C, room temperature (25°C), and 45°C for two months; otherwise, it will be considered unstable. We check if the shampoo is transparent by whether an item is visible or not to the naked eye when the composition contained in a transparent glass bottle is observed. The conditioning effect of each shampoo was evaluated as follows: D) Hair treatment with the test shampoo: A strand of damaged hair was selected. The hair was combed and wet under running water. The test shampoo was applied evenly to the damaged hair from root to tail. The shampoo was gently massaged into the hair with two fingers from root to tail (without tangling) to create a lather. The shampoo was rinsed under running tap water until all the lather was gone. ID) Evaluation of detangling ability and softness in the wet state: The hair was combed from the root using a wide-tooth comb, then the detangling ability of the shampoo was judged using a fine-tooth comb according to the ease of combing. The hair was stroked with two fingers from the root, and the shampoo's hair care performance was judged by the softness of the hair surface. II) Evaluation of softness in the dry state: The hair was either air-dried naturally or blown in an oven at 60°C until completely dry. The hair was stroked with two fingers from the root, and the shampoo's hair care performance was judged by the softness of the hair surface. A silicone-free shampoo (L'Oréal Hyaluronic Acid Shampoo - WATER PUMP) was used as a reference alongside the shampoo being tested in the evaluation of the conditioning effect above. The cleansing effect of each shampoo was evaluated as follows: Six volunteers were recruited, half of each volunteer's hair was washed with the test shampoo, and the other half of each volunteer's hair was washed with a reference product. A silicone-free shampoo (Loreal Hyaluronic Acid Shampoo-WATER PUMP by L'Oréal) was used as a reference in the evaluation of the cleansing effect above. The scores relating to the conditioning effect and the cleansing effect of each shampoo in the test were given by volunteers and averaged, the scores relating to the cleansing effect having been given 24 hours after application. The rating standard for the conditioning and cleansing effect of each shampoo tested is as follows. -- : the shampoo being tested is significantly inferior to the reference; - : the shampoo being tested is slightly inferior to the reference; 0: the shampoo being tested is similar to the reference; +: the shampoo being tested is slightly better than the reference; and ++: the shampoo being tested is clearly superior to the reference. The results concerning stability, conditioning effect and cleaning effect have been summarized in Table 3. The results concerning stability, conditioning effect and cleaning effect have been summarized in Table 3. [Tables 3] EL1 | EL2 EL3 EC. EC.2 EC.3 [Creamy Transparent |Creamy Translucent Properties EL1 | EL2 EL3 EC. EC.2 EC.3 [porn 5 [Transparent Creamy | Translucent Creamy °C) Transparency (4°C) [Transparent Creamy |Creamy |Creamy Transparency (45°C) Transparent |Creamy |Creamy °C) t Stability Stable |Stable |Stable [stable [stable [stable |+ |+ + | [NA [NA [NA [+ [NA |NA |NA [NA [NA qe NA + [+ |+ INA Detangling when wet, Softness when wet, Softness when dry, Long-lasting cleaning NA: Not tested. It can be seen that the composition according to the present invention is transparent and stable at high temperatures (e.g. 45 °C), at room temperature (25 °C) and at low temperatures (e.g. 4 °C) for at least two months and can ensure durable cleaning and a good conditioning effect when applied.

Claims

Demands

1. Transparent composition to cleanse and condition hair including: a) at least one anionic surfactant; b) at least one amphoteric surfactant; c) at least one cationic surfactant selected from the amidoamines fats conforming to the following formula and their salts: RCONHR”N(R”), (the) in which R is an acyclic, linear alkyl or alkenyl group or branched, containing 16 to 22 carbon atoms; R” is a divalent hydrocarbon radical containing fewer than 6 atoms of carbon; and The R's, which can be identical or different, represent a radical hydrocarbon containing fewer than 6 carbon atoms; and d) at least one liquid fatty alcohol.

2. Composition according to claim 1, wherein the surfactant anionic is chosen from - C6-C24 alkyl sulfates and especially C12-C20 alkyl sulfates; - C6-C24 alkyl ethers sulfates and especially C12-C20 alkyl ethers sulfates; preferably comprising 2 to 20 ethylene oxide motifs; -alkylsulfosuccinates in C6-C24 and especially in C12-C20, including laurylsulfosuccinates; - alkyl ether sulfosuccinates in C6-C24 and especially in C12-C20; - C6-C24 acylisethionates and preferably acylisethionates in C12-C18:; -acylsarcosinates in C6-C24 and especially in C12-C20; in particular palmitoylsarcosinates; -C6-C24 alkyl ether carboxylates, preferably alkyl ether C12-C20 carboxylates; - alkyl (amido) ether carboxylic acids (C6-C24) polyoxy- alkylated compounds and their salts, in particular those comprising 2 to 50 groups alkylene oxide and in particular ethylene oxide; - acylglutamates in C6-C24 and especially in C12-C20; - acylglycinates in C6-C24 and especially in C12-C20; particularly in the form of alkali metal salts such as sodium or alkaline earth metal, ammonium or amino alcohol.

3. Composition according to claim 1 or 2, wherein the surfactant anionic is present in quantities ranging from 8% by weight to 16% by weight preferably 10% to 15% by weight, more preferred at 12% by weight to 14% by weight, relative to the total weight of the composition.

4. Composition according to any one of claims 1 to 3, in in which the amphoteric surfactant is chosen from betaine, the (alkyl in C8-C20)betaines, alkyl(C8-C20)sulfobetaines, (alkyl in C8-C20)amido(C1-C6 alkyl)betaines, (C8-C20 alkyl)amido(alkyl in C1-C6)sulfobetaines, and their mixtures.

5. Composition according to any one of claims 1 to 4, in in which the cationic surfactant is chosen from oleamidopropyl dimethamine thylamine, stearamidopropyl dimethylamine, isostearamidopropyl di- methylamine, stearamidoethyl dimethylamine, behenamidopropyl dime- thylamine, palmitamidopropyl dimethylamine, brassicamidopropyl di- methylamine, stearamidoethyl diethylamine, and mixtures thereof.

6. Composition according to any one of claims 1 to 5, in in which the cationic surfactant is chosen, dimethyl stearamidopropyl thylamine, brassicamidopropyl dimethylamine and mixtures thereof.

7. Composition according to any one of claims 1 to 6, in of which the liquid fatty alcohol comprises from & to 30 carbon atoms, of preferably 12 to 24 carbon atoms, and more preferred of 14 to 22 carbon atoms.

8. Composition according to any one of claims 1 to 7, in in which the liquid fatty alcohol is chosen from octyldodecanol, alcohol isostearyl, 2-hexyldecanol, oleyl alcohol, linoleyl alcohol, Linolenic alcohol, undecylenic alcohol, and mixtures thereof.

9. Composition according to claim 1, comprising, by weight Total composition: a) 12% by weight to 14% by weight of at least one surfactant anionic; b) from 1.2% by weight to 1.8% by weight of at least one surfactant amphoteric; (c) 0.4% by weight to 0.8% by weight of at least one surfactant cationic selected from oleamidopropyl dimethylamine, stearami- Idopropyl dimethylamine, isostearamidopropyl dimethylamine, stearate- Midethyl dimethylamine, behenamidopropyl dimethylamine, palmitate midopropyl dimethylamine, brassicamidopropyl dimethylamine, stearate- diethyldiethylamine and their mixtures; and (c) 0.5% by weight to 1.5% by weight of at least one liquid fatty alcohol chosen from octyldodecanol, isostearyl alcohol, 2-hexyldecanol, oleic alcohol, linoleic alcohol, linolenic alcohol, unde- cyclical, and a mixture of these.

10. Hair cleansing and conditioning process comprising the application of the composition according to any of the claims Apply steps 1-9 to the hair, then rinse the hair with water. after an optional exposure period.