JP4856386B2 - Hair cleanser - Google Patents

Description

  The present invention includes a hydrophobic sulfonic acid, and for hair damaged by a hair color or the like, the effect of unraveling the hair at the time of washing based on the speed of foaming and the ease of spreading of the foam, and the effect of improving the combing after drying It is related with the hair cleaning agent which is excellent in.

  Hair is always affected by sunlight, ultraviolet rays, heat, drying, and the like, and tends to be pricked by daily hair washing, brushing, the heat of a dryer, and the like. Furthermore, in recent years, it has become common to enjoy changes in the appearance of hair, such as changing the hair color freely (coloring), changing the hairstyle (perm, etc.), and the frequency of these changes has increased. ing. However, repetition of such coloring and perm damages the hair and increases the friction on the hair surface. For this reason, the hairs are easily entangled with each other, and the feel during the hair washing is also deteriorated. In particular, in the stage before the foam of the detergent spreads sufficiently on the hair, there is no surfactant or other component that acts as a hair lubricant between the hairs, so that the hair is directly entangled and feels bad. It becomes a factor to do. In addition, as the friction on the hair surface increases, the combing after drying tends to worsen.

  Therefore, in order to improve the feel during hair washing and the combing after drying, a cationic polymer, a silicone derivative, an oil agent, and the like are blended in the hair washing agent. For example, it has been proposed to improve the feel during hair washing and the combing of hair by blending a cationic polymer or silicone with a hair washing agent (Patent Document 1). Moreover, in order to improve foaming property and improve the touch during washing | cleaning, using glyceryl ether as a booster of foaming power improvement is also proposed (patent document 2). However, even though these techniques can reduce the unpleasant feel during washing, they are not sufficient to reduce the surface friction of inherently damaged hair itself and to suppress the entanglement easily. It was not compatible with the ability to break the hair at the time of shampooing and the ability to improve the combing after drying.

  On the other hand, hydrophobic sulfonic acids such as naphthalene sulfonic acid and benzophenone sulfonic acid are used in hair straightening compositions such as hair treatment agents and hair deforming agents (for example, Patent Documents 3 and 4).

JP-A-56-72095 JP 2000-239129 A Japanese Patent Laid-Open No. 5-43425 JP-A-5-28830

  Then, an object of this invention is to provide the hair cleaning agent which is excellent in the effect which unravels the hair at the time of hair washing with respect to the hair damaged with the hair color etc., and the effect which improves the combing after drying.

  By combining glyceryl ether, hydrophobic sulfonic acid, organic acid, and organic solvent with the hair cleanser, the present inventor has significantly improved the speed of foaming at the time of washing the hair and the ease of spreading the foam, and has excellent hair release. It has been found that the properties are obtained and the combing after drying is also improved.

That is, the present invention provides a hair cleanser containing the following components (A) to (D) and having a pH of 2 or more and less than 6 at 25 ° C. when diluted 20 times by weight with water.
(A) Monoalkyl glyceryl ether or monoalkenyl glyceryl ether having an alkyl or alkenyl group having 4 to 12 carbon atoms
(B) Hydrophobic sulfonic acid having 6 to 18 carbon atoms or a salt thereof
(C) Organic acid selected from hydroxycarboxylic acid, dicarboxylic acid and aromatic carboxylic acid
(D) Organic solvent selected from the following (d1) to (d5)
(d1) Compound represented by general formula (1)

[Wherein, R ¹ is a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or a group R ² —Ph—R ³ — (R ² ; a hydrogen atom, a methyl group or a methoxy group, R ³ ; a bond or a carbon number 1 to 3 saturated or unsaturated divalent hydrocarbon groups, Ph (paraphenylene group), Y and Z each represent a hydrogen atom or a hydroxyl group, and p, q and r each represent an integer of 0 to 5. However, when p = q = 0, Z is a hydroxyl group, and R ¹ is neither a hydrogen atom nor a group R ² —Ph—. ]
(d2) N-alkylpyrrolidone having a C 1-18 alkyl group bonded to a nitrogen atom
(d3) C2-C4 alkylene carbonate
(d4) Polypropylene glycol with a molecular weight of 200-5000
(d5) Lactone or cyclic ketone represented by general formula (2), (3) or (4)

[Wherein, X represents a methylene group or an oxygen atom, R ⁴ and R ⁵ represent different substituents, and a and b represent 0 or 1. ]

  The hair cleansing agent of the present invention is excellent in the effect of unraveling hair at the time of shampooing and the effect of improving the combing after drying for hair damaged by hair color or the like.

  In the monoalkyl glyceryl ether or monoalkenyl glyceryl ether as the component (A), the alkyl group or alkenyl group having 4 to 12 carbon atoms is a linear or branched group having 4 to 10 carbon atoms, particularly 8 to 10 carbon atoms. In particular, an alkyl group is preferable. Specifically, n-butyl group, isobutyl group, n-pentyl group, 2-methylbutyl group, isopentyl group, n-hexyl group, isohexyl group, n-heptyl group, n-octyl group, 2-ethylhexyl group, n -Decyl group, isodecyl group and the like are mentioned, and 2-ethylhexyl group and isodecyl group are particularly preferable.

  Two or more glyceryl ethers of component (A) may be used in combination, and the content thereof is not limited from the viewpoint of improving the foaming speed and ease of foaming, as well as the feeling of use and the conditioning effect. In the hair cleansing agent of the invention, 0.1 to 15% by weight is preferable, 0.2 to 10% by weight, particularly 0.3 to 5% by weight is preferable.

  Examples of the hydrophobic group of the hydrophobic sulfonic acid having 6 to 18 carbon atoms as component (B) include an aliphatic hydrocarbon group, an alicyclic hydrocarbon group, an aromatic hydrocarbon group, and a heterocyclic group. A hydrocarbon group having 6 to 18 carbon atoms when a ring is included and 6 to 9 carbon atoms when an aromatic ring is not included is preferable. Examples of these hydrophobic sulfonic acids include the following (b1) to (b3).

(b1) C6-C18 aromatic sulfonic acid containing one aromatic ring

(b2) C10-18 aromatic sulfonic acid containing two or more aromatic rings

(b3) Aliphatic sulfonic acid having an aliphatic hydrocarbon group having 6 to 9 carbon atoms

  (b1) is more preferably an aromatic sulfonic acid having 6 to 12 carbon atoms containing one aromatic ring, specifically, benzenesulfonic acid, o-toluenesulfonic acid, p-toluenesulfonic acid, xylenesulfonic acid. And cumene sulfonic acid, ethylbenzene sulfonic acid, 2,4,6-trimethylbenzene sulfonic acid, tetralin sulfonic acid, indane sulfonic acid, and phenol sulfonic acid. Of these, p-toluenesulfonic acid, xylenesulfonic acid, and cumenesulfonic acid are particularly preferable.

  (b2) is more preferably an aromatic sulfonic acid having 10 to 12 carbon atoms containing two or more aromatic rings, and specific examples include azulene sulfonic acid and naphthalene sulfonic acid. Of these, naphthalenesulfonic acid is particularly preferred.

  (b3) is more preferably an aliphatic sulfonic acid having an aliphatic hydrocarbon group having 7 to 9 carbon atoms, such as 1-heptanesulfonic acid, 1-octanesulfonic acid, 1-nonanesulfonic acid, 2-ethylhexylsulfonic acid. Etc. Of these, 2-ethylhexylsulfonic acid is particularly preferred.

  Moreover, as a salt of these hydrophobic sulfonic acids, a sodium salt, potassium salt, and ammonium salt are preferable.

  The hydrophobic sulfonic acid of component (B) or a salt thereof may be used in combination of two or more thereof, and the content thereof is excellent in the feeling of use and conditioning, and is excellent in the speed of foaming and ease of foaming, From the viewpoint of good combability after drying, 0.1 to 5% by weight is preferable in the hair cleansing agent of the present invention, further 0.1 to 2% by weight, and particularly 0.2 to 1% by weight is preferable.

  Among the organic acids selected from hydroxycarboxylic acids, dicarboxylic acids and aromatic carboxylic acids that are component (C), hydroxycarboxylic acids include glycolic acid, lactic acid, hydroxyacrylic acid, oxybutyric acid, glyceric acid, malic acid, tartaric acid Citric acid, salicylic acid and the like, and examples of the dicarboxylic acid include malonic acid, succinic acid, glutaric acid, adipic acid, maleic acid, fumaric acid, phthalic acid, malic acid, tartaric acid and the like. Examples of the aromatic carboxylic acid include salicylic acid and benzoic acid. Of these, α-hydroxycarboxylic acid is preferable, and lactic acid and malic acid are particularly preferable.

  The organic acid of component (C) may be used in combination of two or more, and the content thereof is preferably 0.05 to 10% by weight in the hair cleanser of the present invention from the viewpoint of improving the combability of the hair, Furthermore, 0.1 to 5% by weight, particularly 0.3 to 2% by weight is preferable.

  Among the organic solvents as component (D), (d1) includes ethanol, 1-propanol, 2-propanol, butanol, isobutanol, ethylene glycol, propylene glycol, 1,3-butanediol, benzyl alcohol, cinnamyl Alcohol, phenethyl alcohol, p-anisyl alcohol, p-methylbenzyl alcohol, phenoxyethanol, 2-benzyloxyethanol, methyl carbitol, ethyl carbitol, propyl carbitol, butyl carbitol, triethylene glycol monoethyl ether, triethylene Examples include glycol monobutyl ether and glycerin.

  Examples of (d2) include N-methylpyrrolidone, N-octylpyrrolidone, N-laurylpyrrolidone and the like.

  Examples of (d3) include ethylene carbonate and propylene carbonate.

  The polypropylene glycol (d4) preferably has a molecular weight of 200 to 1000.

In (d5), R ⁴ and R ⁵ in the general formulas (2) to (4) are linear, branched or cyclic alkyl groups, hydroxyl groups, sulfonic acid groups, phosphoric acid groups, carboxy groups, and phenyl groups. , A sulfoalkyl group, an alkyl phosphate group, a carboxyalkyl group, etc. are preferable. In particular, in the case of γ-lactone, the γ-position is substituted, and in the case of δ-lactone, the δ-position (that is, the methylene adjacent to the hetero oxygen atom) is substituted. C1-C6 linear or branched alkyl groups such as methyl, ethyl, propyl, isopropyl and butyl groups are preferred. When it is desired to increase the water solubility of the compounds (2) to (4), R ⁴ or R ⁵ has an acidic group such as a sulfonic acid group, a phosphoric acid group or a carboxy group, or an alkyl group substituted with these. Is preferred. Among (d5), examples of the lactone include γ-butyrolactone, γ-caprolactone, γ-valerolactone, δ-valerolactone, δ-caprolactone, δ-heptanolactone, and the like. Γ-lactone, particularly γ-butyrolactone and γ-caprolactone are preferred. Among (d5), examples of the cyclic ketone include cyclopentanone, cyclohexanone, cycloheptanone, 4-methylcycloheptanone and the like.

  The organic solvent of component (D) may be used in combination of two or more, and the content thereof does not impair the feel during washing, and improves the combing of the hair. Is preferably 0.01 to 50% by weight, more preferably 0.1 to 35% by weight, and particularly preferably 0.5 to 10% by weight.

  The hair cleansing agent of the present invention may contain a surfactant selected from anionic surfactants, nonionic surfactants other than component (A), amphoteric surfactants and cationic surfactants.

Examples of the anionic surfactant, sulfuric acid, sulfonic acid, preferably has a carboxylic acid, for example, include alkyl sulfates, polyoxyalkylene alkyl ether sulfates, polyoxyalkylene alkenyl ether sulfates, high grade fatty acid salts and the like Among them, polyoxyalkylene alkyl ether sulfates or alkyl sulfates, particularly those represented by the following general formula (5) or (6) are preferable.

R ⁶ O— (CH ₂ CH ₂ O) _n SO ₃ M (5)
R ⁷ O-SO ₃ M (6)

[Wherein R ⁶ represents an alkyl or alkenyl group having 10 to 18 carbon atoms, R ⁷ represents an alkyl group having 10 to 18 carbon atoms, M represents an alkali metal, alkaline earth metal, ammonium, alkanolamine or A basic amino acid is shown, n shows the number of 1-5 on a weight average. ]

  Two or more anionic surfactants may be used in combination, and the content thereof is preferably 0.5 to 60% by weight in the hair cleansing agent of the present invention from the viewpoint of liquidity and detergency during use. Is preferably 1 to 30% by weight, more preferably 8 to 20% by weight.

Nonionic surfactants other than component (A) include polyoxyalkylene sorbitan fatty acid esters, polyoxyalkylene sorbit fatty acid esters, polyoxyalkylene glycerin fatty acid esters, polyoxyalkylene fatty acid esters, polyoxyalkylene alkyl ethers , Polyoxyalkylene alkyl phenyl ethers, polyoxyalkylene (hardened) castor oil, sucrose fatty acid esters, polyglycerin alkyl ethers, polyglycerin fatty acid esters, fatty acid alkanolamides, alkyl glycosides, etc. . Of these, alkylglycosides, polyoxyalkylene (C ₈ -C ₂₀ ) fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene hydrogenated castor oil, and fatty acid alkanolamides are preferred.

  The fatty acid alkanolamide may be either a monoalkanolamide or a dialkanolamide, and preferably has an acyl group having 8 to 18 carbon atoms, particularly 10 to 16 carbon atoms. In particular, those having a hydroxyalkyl group having 2 to 3 carbon atoms are preferable, such as oleic acid diethanolamide, palm kernel oil fatty acid diethanolamide, coconut oil fatty acid diethanolamide, lauric acid diethanolamide, polyoxyethylene coconut oil fatty acid monoethanolamide. Coconut oil fatty acid monoethanolamide, lauric acid isopropanolamide, lauric acid monoethanolamide, and the like.

  Two or more kinds of nonionic surfactants other than the component (A) may be used in combination, and the content of the nonionic surfactant is the total amount of the nonionic surfactant including the component (A). The content is preferably 0.1 to 20% by weight, more preferably 0.1 to 15% by weight, and particularly preferably 0.3 to 10% by weight because a good foam increasing effect can be obtained.

  Examples of amphoteric surfactants include betaine surfactants. Of these, alkyldimethylaminoacetic acid betaine, fatty acid amidopropyl betaine, alkylhydroxysulfobetaine and the like are more preferred, and fatty acid amidopropyl betaine is particularly preferred. As the fatty acid amidopropyl betaine, those having an acyl group having 8 to 18 carbon atoms, particularly 10 to 16 carbon atoms, are preferable. Specifically, amide propyl betaine laurate, palm kernel fatty acid amidopropyl betaine, coconut oil fatty acid Amidopropyl betaine and the like are preferred.

  Two or more amphoteric surfactants may be used in combination, and the content thereof is preferably 0.1 to 15% by weight, more preferably 0.3 to 8% by weight, particularly 0.5 to 6% by weight in the hair cleansing agent of the present invention. % Is preferable because a good foam increasing effect can be obtained.

  Examples of the cationic surfactant include alkyltrimethylammonium salts, alkoxytrimethylammonium salts, dialkyldimethylammonium salts, alkyldimethylamines and salts thereof, alkoxydimethylamines and salts thereof, alkylamidodimethylamines and salts thereof, and the like.

(i) Alkyltrimethylammonium salt Examples include those represented by the following general formula.
_{^{R 11 -N + (CH 3)}} 3 X -
[Wherein R ¹¹ represents an alkyl group having 12 to 22 carbon atoms, and X ⁻ represents a halide ion (particularly a chloride ion or a bromide ion). ]

(ii) Alkoxytrimethylammonium salt Examples include those represented by the following general formula.
R ¹¹ —O—R ¹² —N ⁺ (CH ₃ ) ₃ X ⁻
[Wherein, R ¹² represents an ethylene group or a propylene group, and R ¹¹ and X ⁻ represent the same meaning as described above. ]

(iii) Dialkyldimethylammonium salt Examples include those represented by the following general formula.
(R ¹³ ) ₂ N ⁺ (CH ₃ ) ₂ X ⁻
[Wherein, R ¹³ represents an alkyl group having 12 to 22 carbon atoms or a benzyl group, and X ⁻ represents the same meaning as described above. ]

(iv) Alkyldimethylamine (and its salts)
For example, what is represented by the following general formula and its salt are mentioned.
R ¹¹ -N (CH ₃ ) ₂
[Wherein R ¹¹ has the same meaning as described above. ]

(v) Alkoxydimethylamine (and its salt)
For example, what is represented by the following general formula and its salt are mentioned.
R ¹¹ —O—R ¹² —N (CH ₃ ) ₂
[Wherein, R ¹¹ and R ¹² have the same meaning as described above. ]

(vi) alkylamidodimethylamine (and its salt)
For example, what is represented by the following general formula and its salt are mentioned.
R ¹⁴ —C (═O) NH—R ¹² —N (CH ₃ ) ₂
[Wherein, R ¹⁴ represents an alkyl group having 11 to 21 carbon atoms, and R ¹² represents the same meaning as described above. ]

Examples of cationic surfactants other than the above (i) to (vi) include ethyl sulfate lanolin fatty acid aminopropylethyldimethylammonium (alkanoylaminopropyl dimethylethylammonium ethyl sulfate, alkanoyl group derived from lanolin), ethyl sulfate lanolin fatty acid amino Ethyl triethyl ammonium, ethyl lanolin sulfate fatty acid aminopropyl triethyl ammonium, methyl sulfate lanolin fatty acid amino ethyl trimethyl ammonium, methyl sulfate lanolin fatty acid aminopropyl ethyl dimethyl ammonium, ethyl sulfate isoalkanoic acid (C ₁₄ -C ₂₀ ) aminopropyl ethyl dimethyl ammonium, ethyl sulfuric isoalkanes acid (C ₁₈ ~C ₂₂₎ aminopropyl dimethylammonium ethyl sulfate isostearate aminopropyl et Le dimethyl ammonium, ethyl isononanoate aminopropyl dimethylammonium and alkyltrimethylammonium saccharin sulfate.

  By blending a cationic surfactant, the finish after drying can be improved. Two or more kinds of cationic surfactants may be used in combination, and from the viewpoint of smoothness from the time of shampooing to the time of rinsing, the content is preferably 0.01 to 10% by weight in the hair cleaning agent of the present invention, Furthermore, 0.05 to 6% by weight, particularly 0.3 to 3% by weight, particularly 0.5 to 2% by weight is preferable.

  Furthermore, the hair cleansing agent of the present invention can contain a cationic polymer from the viewpoint of reducing squeaking during washing, and improving the foam texture, foam slipperiness and smoothness during drying. Examples of cationic polymers include cationized cellulose derivatives, cationic starch, cationized guar gum derivatives, homopolymers of diallyl quaternary ammonium salts, diallyl quaternary ammonium salts / acrylamide copolymers, quaternized polyvinylpyrrolidone derivatives, polyglycols. Polyamine condensate, vinyl imidazolium trichloride / vinyl pyrrolidone copolymer, hydroxyethyl cellulose / dimethyldiallylammonium chloride copolymer, vinyl pyrrolidone / quaternized dimethylaminoethyl methacrylate copolymer, polyvinyl pyrrolidone / alkylamino acrylate copolymer , Polyvinylpyrrolidone / alkylaminoacrylate / vinylcaprolactam copolymer, vinylpyrrolidone / methacrylamidopropyl trimethyl chloride Ammonium copolymer, alkylacrylamide / acrylate / alkylaminoalkylacrylamide / polyethylene glycol methacrylate copolymer, adipic acid / dimethylaminohydroxypropylethylenetriamine copolymer (Cartaretin manufactured by Sandos, USA), JP-A-53-139734 And cationic polymers described in JP-A-60-36407. In particular, a cationized cellulose derivative, a cationized guar gum derivative, and a diallyl quaternary ammonium salt / acrylamide copolymer are preferable.

  Two or more types of cationic polymers may be used in combination, and the content of the cationic polymer in the hair cleansing agent of the present invention is improved in foam quality during washing, and in terms of improving the mass and feel of the hair after drying. Is preferably 0.02 to 5% by weight, more preferably 0.05 to 1% by weight, and particularly preferably 0.1 to 0.7% by weight.

  Furthermore, the hair cleaning agent of the present invention can contain silicones from the viewpoints of foam texture, foam slipperiness, creaking reduction during washing, and smoothness during drying. Examples of silicones include the following.

(1) Dimethylpolysiloxane Examples include those represented by the following general formula.
(CH ₃ ) ₃ SiO — [(CH ₃ ) ₂ SiO] _d —Si (CH ₃ ) ₃
[In formula, d shows the number of 3-20000. ]

(2) Amino-modified silicone Various amino-modified silicones can be used, but are described in the 3rd edition of the CTFA Dictionary (US, Cosmetic Ingredient Dictionary) under the name of Amodimethicone, especially with an average molecular weight of about 3000 to 100,000. Is preferred. This amino-modified silicone is preferably used as an aqueous emulsion. Examples of commercially available products include SM 8704C (Toray Dow Corning Silicone), DC 929 (Dow Corning), KT 1989 (GE Toshiba). It is done.

(3) Other silicones Other than the above, polyether-modified silicone, methylphenylpolysiloxane, fatty acid-modified silicone, alcohol-modified silicone, alkoxy-modified silicone, epoxy-modified silicone, fluorine-modified silicone, cyclic silicone, alkyl-modified silicone, etc. It is done.

  These silicones may be used in combination of two or more, and from the point of smoothness from the time of shampooing to the time of rinsing, the content is preferably 0.01 to 10% by weight in the hair cleansing agent of the present invention, Furthermore, 0.05 to 6% by weight, particularly 0.3 to 3% by weight, particularly 0.5 to 2% by weight is preferable.

  Furthermore, the hair cleansing agent of the present invention can contain an oil as another conditioning agent. Oils include hydrocarbons such as squalene, squalane, liquid paraffin, liquid isoparaffin, cycloparaffin; glycerides such as castor oil, cacao oil, mink oil, avocado oil, olive oil; beeswax, whale wax, lanolin, carnauba wax, etc. Waxes; polyhydric alcohols such as glycerin; isopropyl palmitate, isopropyl myristate, octyldodecyl myristate, hexyl laurate, cetyl lactate, propylene glycol monostearate, oleyl oleate, hexadecyl 2-ethylhexanoate, isononanoic acid Estones such as isononyl and tridecyl isononanoate; capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, coconut oil fatty acid, isostearyl acid, isopalmitic acid Higher fatty acids; myristyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, 2-octyldodecanol, higher alcohols such as cetostearyl alcohol; Other isostearyl glyceryl ether, polyoxypropylene butyl ether. Of these, higher alcohols are preferable, and myristyl alcohol, cetyl alcohol, and stearyl alcohol are particularly preferable. Two or more of these oil agents can be used in combination, and the content thereof is preferably 0.2 to 2% by weight, more preferably 0.3 to 1.8% by weight, and particularly preferably 0.5 to 1.5% by weight in the hair cleansing agent of the present invention. .

  Furthermore, from the viewpoint of improving the texture and stability of the cleaning agent, the hair cleaning agent of the present invention can contain an ethylene glycol monofatty acid ester or an ethylene glycol difatty acid ester. Examples of the ethylene glycol monofatty acid ester include ethylene glycol monostearic acid ester and ethylene glycol monobehenic acid ester. Examples of the ethylene glycol difatty acid ester include ethylene glycol distearic acid ester and ethylene glycol dibehenic acid ester. Two or more of these may be used in combination, and the content thereof is preferably 0.5 to 8% by weight, more preferably 0.7 to 5% by weight, and particularly preferably 1 to 3% by weight in the hair cleansing agent of the present invention. . From the viewpoint of improving the stability of the cleaning agent, the weight ratio of the pearlizing agent containing the ethylene glycol fatty acid ester and the sulfate-type surfactant in the hair cleaning agent of the present invention (pearling agent / sulfate-type surfactant) The agent is preferably 1/10 to 2/5, more preferably 1/7 to 3/10, and particularly preferably 1/6 to 1/4.

  Furthermore, the hair cleanser of the present invention may contain a viscosity modifier, and examples of the viscosity modifier include hydroxyethyl cellulose, methyl cellulose, polyethylene glycol, clay minerals, salts (sodium chloride, ammonium chloride, sodium citrate, etc. Among them, salts, particularly sodium chloride and sodium citrate are preferable. Two or more viscosity modifiers may be used in combination, and the amount used thereof is preferably 0.01 to 5% by weight, more preferably 0.05 to 3% in the hair cleansing agent of the present invention from the viewpoint of the amount of foam and foam quality. % By weight, in particular 0.1 to 1.5% by weight is preferred.

  In addition to the above components, the hair cleansing agent of the present invention can be appropriately blended with components used in normal hair cleansing agents depending on the purpose. Such components include, for example, anti-dandruff agents; vitamin agents; bactericides; anti-inflammatory agents; antiseptics; chelating agents; moisturizers such as panthenol; colorants such as dyes and pigments; Proteins obtained from shells or pearls having a pearl layer or pearls or hydrolysates thereof, proteins obtained from silk or hydrolysates thereof, protein-containing extracts obtained from legume seeds, ginseng extract, rice germ extract, Extracts such as Hibamata extract, Camellia extract, Aloe extract, Moon peach leaf extract, Chlorella extract; Pearl powder such as titanium oxide; Ceramides, pseudoceramides; Fragrance; Dye; Ultraviolet absorber; Antioxidant Agents; Other ingredients listed in ENCYCLOPEDIA OF SHAMPOO INGREDIENTS (MICELLE PRESS)

  The hair cleansing agent of the present invention is applied to hair from the viewpoint of both the speed of foaming on damaged hair, the ease of unraveling the hair during washing due to the ease of spreading the foam, and the goodness of combing after drying. The pH (diluted 20 times by weight with water, 25 ° C.) is preferably 2 or more and less than 6, more preferably pH 3 to 5, particularly preferably pH 3.5 to 4.5. In addition to the organic acid of component (C), a base such as an inorganic acid, sodium hydroxide, potassium hydroxide, or ammonium chloride may be used as the pH adjuster.

  The form of the hair cleansing agent of the present invention can be appropriately selected from a liquid form, a gel form, etc., but a liquid form using water or a lower alcohol, particularly water, as a solvent is preferable.

Examples 1-11 and Comparative Examples 1-4
The hair cleansing agents shown in Tables 1 and 2 were prepared, and the speed of foaming, ease of foam expansion, and combing of the hair after drying were evaluated. The pH is a value at 25 ° C. diluted 20 times by weight with water.

(Speed of foaming)
According to the apparatus and conditions described in [0053] and [0054] of JP-A-10-73584, the amount of foaming is measured with an evaluation sample of 1.5 mL and model sebum of 0.3 mL, and depending on the time until the amount of foam reaches 25 mL evaluated.

・ Evaluation criteria ◎: Less than 100 seconds ○: More than 100 and less than 200 seconds △: More than 200 and less than 300 seconds ×: More than 300 seconds

(Ease of spreading bubbles)
A hair strand of 25 cm long, 5.5 cm wide, and 10 g weight that has been bleached in advance is rinsed lightly with 40 ° C warm water, then excess water is removed, and about 30 g of 0.5 g hair cleansing agent is used. Whisked for 2 seconds. Sensory evaluation was performed on the speed of foam expansion. The evaluation was performed by five people, and the total value of the evaluation was shown.

-Evaluation criteria 4: Easy to spread 3: Slightly easy to spread 2: Slightly difficult to spread 1: Difficult to spread

(After combing after drying)
The hair bundles treated in the same manner as in the evaluation of foam spreadability were rinsed with running water (2 L / min) at 40 ° C. for 30 seconds, and then the moisture was sufficiently wiped off with a towel and air-dried. After drying, the comb was evaluated. The evaluation was performed by five people, and the total value of the evaluation was shown.

・ Evaluation criteria 4: Good 3: Somewhat good 2: Not very good 1: Not good

Example 11 Pearl Appearance Shampoo
(weight%)
Polyoxyethylene (2) ammonium lauryl ether sulfate 13.0
Isodecyl glyceryl ether 0.5
Sodium xylene sulfonate 0.5
Sodium cocoamphoacetate 0.5
Cocoyl monoethanolamide 0.3
Polyoxyethylene (14) lauryl ether 1.0
Highly polymerized methylpolysiloxane emulsion (silicone CF2450, Toray Dow Corning) 4.0
Benzyl alcohol 0.5
Ethylene glycol distearate 2.0
Cationized hydroxyethyl cellulose (Polymer JR-400, Amerchol) 0.4
Amino-modified silicone derivatives (8500 CONDITIONING AGENT, Dow Corning) ^{* 2} 1.0
Panthenol 0.05
Silk extract 0.05
Sodium chloride 1.0
Lactic acid pH 5.0 Amount of ion-exchanged water Balance

R: hydrocarbon group of C ₁₃ H _{27 to} C ₁₅ H ₃₁ W: 75% is a group —CH ₂ CH (OH) CH ₂ OH, 25% is a hydrogen atom

Example 12 Conditioning Shampoo
(weight%)
Polyoxyethylene (2) ammonium lauryl ether sulfate 10.0
Ammonium lauryl sulfate 5.0
Isodecyl glyceryl ether 0.7
p-Toluenesulfonic acid 0.5
Laurylamidopropylbetaine 2.0
Cocoyl monoethanolamide 0.5
Myristyl alcohol 1.5
Polyoxyethylene (16) lauryl ether 1.0
Ethylene glycol distearate 2.0
Cationized hydroxyethylcellulose (Poise C-80M, Kao) 0.5
Diallyl quaternary ammonium salt / acrylamide copolymer (Marcote 550, ONDEO NALCO) 0.2
Amino-modified silicone derivatives (8500 CONDITIONING AGENT, Dow Corning) 0.4
Highly polymerized methylpolysiloxane emulsion (Silicone CF2450, Toray Dow Corning) 2.0
Benzyl alcohol 0.4
Polypropylene glycol (Mw = 400) 0.2
Hydrolyzed conchiolin solution (dry weight 3% by weight) 0.05
Panax ginseng extract (dry weight 3%) 0.05
Soybean extract (0.4% dry matter) 0.05
Eucalyptus extract (dry weight 0.2% by weight) 0.05
Camellia oil 0.05
Rice germ oil 0.05
Malic acid 0.5
Sodium hydroxide pH 3.9 Amount of ion-exchanged water Balance

Example 13 Conditioning Shampoo
(weight%)
Polyoxyethylene (2) ammonium lauryl ether sulfate 14.0
Isodecyl glyceryl ether 0.5
Ammonium cumene sulfonate 0.8
Laurylamidopropylbetaine 3.0
Polyoxyethylene (16) lauryl ether 2.0
Stearoxypropyldimethylamine malate 0.5
Ethylene glycol distearate 2.0
Cationized guar gum (Jaguar C-13S, Rhodia) 0.3
Polypropylene glycol (Mw = 400) 0.5
Amino-modified silicone derivatives (8500 CONDITIONING AGENT, Dow Corning) 0.8
Sodium chloride 1.0
Arginine 0.5
Malic acid 0.2
Adipic acid 0.5
Glycolic acid 0.2
Sodium hydroxide Amount of pH 5.0 Ion exchange water Balance

Example 14 Conditioning Shampoo
(weight%)
Polyoxyethylene (2) sodium lauryl ether sulfate 16.0
Isodecyl glyceryl ether 1.5
Sodium p-toluenesulfonate 0.7
Cocoylamidopropylbetaine 1.0
Lauryl hydroxysulfobetaine 1.0
Lauric acid 0.5
Oleic acid 0.7
Distearyl ether 2.0
Cocoyl benzalkonium chloride 0.5
Cationized hydroxyethyl cellulose (Polymer JR-400, Amerchol) 0.4
Ethanol 0.5
Amino-modified silicone derivatives (8500 CONDITIONING AGENT, Dow Corning) 0.2
Highly polymerized methylpolysiloxane emulsion (silicone CF2450, Toray Dow Corning) 2.0
Ceramide II (Croda Japan Ltd.) 0.05
Hibamata extract 0.05
Malic acid 0.7
Sodium hydroxide Amount of pH 5.0 Ion exchange water Balance

  The cleaning agents of Examples 11 to 14 all improve the combing effect after drying and the effect of unraveling the hair at the time of washing by quick foaming and easy to spread the foam against hair damaged by hair color etc. It was an excellent effect.

Claims (6)

A hair cleanser containing the following components (A) to (D) and having a pH of 3.5 to 4.5 at 25 ° C. when diluted 20 times by weight with water.
(A) Monoalkyl glyceryl ether or monoalkenyl glyceryl ether having an alkyl group or alkenyl group having 4 to 12 carbon atoms : 0.1 to 15% by weight
(B) Hydrophobic sulfonic acid having 6 to 18 carbon atoms or salt thereof: 0.1 to 1% by weight
(C) Organic acid selected from hydroxycarboxylic acid, dicarboxylic acid and aromatic carboxylic acid: 0.3 to 2% by weight
(D) Organic solvent selected from the following (d1) to (d5): 0.5 to 10% by weight
(d1) Compound represented by general formula (1)
[Wherein, R ¹ is a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or a group R ² —Ph—R ³ — (R ² ; a hydrogen atom, a methyl group or a methoxy group, R ³ ; a bond or a carbon number 1 to 3 saturated or unsaturated divalent hydrocarbon groups, Ph (paraphenylene group), Y and Z each represent a hydrogen atom or a hydroxyl group, and p, q and r each represent an integer of 0 to 5. However, when p = q = 0, Z is a hydroxyl group, and R ¹ is neither a hydrogen atom nor a group R ² —Ph—. ]
(d2) N-alkylpyrrolidone having a C 1-18 alkyl group bonded to a nitrogen atom
(d3) C2-C4 alkylene carbonate
(d4) Polypropylene glycol with a molecular weight of 200-5000
(d5) Lactone or cyclic ketone represented by general formula (2), (3) or (4)
[Wherein, X represents a methylene group or an oxygen atom, and R ⁴ and R ⁵ are linear, branched or cyclic alkyl groups, hydroxyl groups, sulfonic acid groups, phosphoric acid groups, carboxy groups, phenyl groups, sulfoalkyl groups. , A different substituent selected from an alkyl phosphate group and a carboxyalkyl group, and a and b each represent 0 or 1. ] Component (B), the hair cleansing composition of claim 1 wherein the hydrophobic acid or its salt having a carbon number of 6-9 containing no hydrophobic sulfonic acid or an aromatic ring having 6 to 18 carbon atoms containing an aromatic ring. The hair cleansing agent according to claim 1 or 2 , wherein component (B) is an aromatic sulfonic acid having 6 to 18 carbon atoms containing one aromatic ring. The hair cleansing agent according to claim 1 or 2 , wherein component (B) is an aromatic sulfonic acid having 10 to 18 carbon atoms containing two or more aromatic rings. The hair cleansing agent according to claim 1 or 2, wherein the component (B) is an aliphatic sulfonic acid having an aliphatic hydrocarbon group having 6 to 9 carbon atoms. Furthermore, the hair washing agent in any one of Claims 1-5 containing ethylene glycol mono-fatty acid ester or ethylene glycol di-fatty acid ester.