JP2010070507A - Hair cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hair cosmetic imparting sufficient smoothness and softness to hair at rinsing and after drying. <P>SOLUTION: The hair cosmetic contains: (a) organopolysiloxane containing at least one organic group having a plurality of hydroxy groups; and (b) a branched fatty acid represented by formula (1) (wherein R<SB>1</SB>is methyl or ethyl; and n is a number of 3-36) or a salt thereof. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a hair cosmetic suitable as a form to be used after being washed away, such as a hair rinse, a hair conditioner, and a hair treatment.

  In recent years, the use of perms, hair colors, bleaches, and the like has become common, but hair damage due to these chemical treatments has also become a problem. Conventionally, hair cosmetics such as rinses, conditioners and treatments have been used to improve the feel of hair after shampooing, but further performance improvements are desired from the viewpoint of reducing hair damage. Yes.

  These hair cosmetics contain various silicones in addition to cationized products such as cationic surfactants and cationic polymers, oils, etc. in order to improve the smoothness during rinsing and to improve the feel of the hair after drying. Is used. However, silicones have advantages and disadvantages depending on the type. For example, dimethylpolysiloxane has a problem that it lacks the effect of suppressing squeaking in a water stream and the effect of imparting flexibility and smoothness. Polyether-modified silicone has a problem that the effect of imparting flexibility is weak, and the effect of suppressing squeakiness and the effect of imparting smoothness are lacking in sustainability. Amino-modified silicone has a problem that it can impart a continuous soft feeling, but has a strong squeaky feeling that touches rubber in water, and cancels the soft feeling.

  A branched polyglycerol-modified silicone is known as a nonionic modified silicone imparted with hydrophilicity while maintaining its properties as a silicone (Patent Document 1), and hair cosmetics containing this are also proposed ( Patent Document 2).

On the other hand, hair cosmetics using etheramine or a salt thereof, an aromatic alcohol, a branched fatty acid or a salt thereof as a hair cosmetic capable of repairing or suppressing structural changes in the hair and imparting good flexibility (Patent Document 3) And hair cosmetics using a combination of amidoamine compounds or salts thereof, aromatic alcohols, branched fatty acids and salts thereof have been proposed (Patent Document 4).
JP 2004-339244 A JP-A-2005-97152 JP 2007-176923 A JP 2007-176924 A

  These hair cosmetics are insufficient to impart smoothness and softness to hair both during rinsing and after drying, and further improvements are desired. Moreover, although patent document 2 describes the hair cosmetics, all of them refer to the feel of the hair after drying. No mention is made of the effect of imparting smoothness.

  The present inventor provides a sufficient smooth feeling at the time of rinsing by combining an organopolysiloxane containing at least one organic group having a plurality of hydroxyl groups, such as polyglycerol-modified silicone, and a specific branched fatty acid or a salt thereof, and drying. It was later found that sufficient smoothness can be imparted to the hair.

The present invention includes the following components (a) and (b):
(A) Organopolysiloxane containing at least one organic group having a plurality of hydroxyl groups (b) Branched fatty acid represented by the general formula (1) or a salt thereof

[Wherein, R ₁ represents a methyl group or an ethyl group, n is a number of 3-36. ]
A hair cosmetic composition containing

  The hair cosmetic composition of the present invention can impart a sufficient smooth feeling during rinsing and can impart a sufficient smooth feeling to the hair after drying.

The present invention will be described below.
The component (a) used in the present invention is an organopolysiloxane containing at least one organic group having a plurality of hydroxyl groups, and examples thereof include polyglycerol-modified silicone. Specifically, on average, three or more glycerol groups represented by the following structural formula (2), (3), (4) or (5) are bonded and represented by the structural formula (2). A branched polyglycerol-modified silicone in which at least one branched polyglycerol chain containing at least one branched glycerol group is bonded to the silicon atom of the silicone via a linking group.

  As said coupling group, group which has an ether bond represented by General formula (6) or (7) is mentioned.

(Wherein R ² represents a linear or branched alkylene group having 1 to 22 carbon atoms, an alkenylene group, or an arylene group having 6 to 22 carbon atoms, which may have a substituent, and A ¹ O Represents an oxyalkylene group having 1 to 4 carbon atoms or an oxyarylene group having 6 to 10 carbon atoms, p represents a number from 0 to 30, and p A ¹ Os may be the same or different.

(In the formula, R ² has the same meaning as in general formula (6), and A ² O and A ³ O each independently represents a C 1-4 oxyalkylene group or a C 6-10 oxyarylene group. Q represents a number of 1 to 30, r represents a number of 1 to 30, and q A ² O and r A ³ O may be the same or different.)
Moreover, it is preferable that the said coupling group is group represented by Formula (8) or (9).

  The organopolysiloxane of component (a) can be synthesized, for example, according to Japanese Patent Application Laid-Open No. 2004-339244 (Patent Document 1), but is not limited to this method. A specific example of component (a) is “Sofcare GS-G” (Kao).

  When the component (a) is blended in the hair cosmetic composition of the present invention, it is blended by dissolving in liquid oil or an organic solvent described later, or a cationic surfactant or polyoxyethylene alkyl ether described later in advance. It is preferable to blend as a dispersion liquid dispersed in an aqueous solution of a nonionic surfactant. Examples of the liquid oil include dimethylpolysiloxane, cyclic silicone, ester oil, and isoparaffinic hydrocarbon, which will be described later.

  A component (a) can be used individually or in combination of 2 or more types, and the content is 0.001-10 mass% in the hair cosmetics of this invention, Furthermore, 0.01-5 Mass% is preferred.

  The component (b) used in the present invention is a branched fatty acid represented by the general formula (1) or a salt thereof.

[Wherein, R ¹ represents a methyl group or an ethyl group, n is a number of 3-36. ]
Among such branched fatty acids, n is preferably 3 to 35 (total carbon number 7 to 40), more preferably 4 to 35 (total carbon number 8 to 40), particularly 6 to 19 (total carbon number 10 to 24). It is.

  Specifically, 18-methyleicosanoic acid, 14-methylpentadecanoic acid, 14-methylhexadecanoic acid, 15-methylhexadecanoic acid, 15-methylheptadecanoic acid, 16-methylheptadecanoic acid, 16-methyloctadecanoic acid, Examples thereof include 17-methyloctadecanoic acid and 17-methylnonadecanoic acid. The branched fatty acid salts include alkali metal salts such as sodium salt, lithium salt and potassium salt; alkaline earth metal salts such as calcium salt and magnesium salt; ammonium salt; triethanolamine salt, diethanolamine salt and monoethanol. Examples include alkanolamine salts such as amine salts; basic amino acid salts such as lysine salts and arginine salts.

  The branched fatty acid of component (b) can be separated and extracted from hair or the like according to the description of LIPIDS, vol.23, No.9, 878-881 (1988), International Publication WO98 / 30532 pamphlet, for example. Can also be synthesized according to the description in JP-A-4-173719.

  Examples of the extract include an extract from lanolin, that is, a lanolin fatty acid and a salt thereof. Commercially available lanolin fatty acids contain about 50% by weight of methyl branched long-chain fatty acids called isofatty acids and anteisofatty acids. Specific examples include Crodacid 18-MEA [Crowda Japan Co., Ltd.], Scrairo [Crowda Japan Co., Ltd.], and FA-NH [Nippon Seika Co., Ltd.].

  Two or more kinds of the branched fatty acid or salt thereof as component (b) may be used in combination. Moreover, you may use combining a synthetic product and an extract. The content thereof is preferably 0.01 to 10% by mass, more preferably 0.05 to 5% by mass in the hair cosmetic composition of the present invention, from the viewpoint of the effect of recovering or suppressing hair damage.

  The hair cosmetic composition containing such component (a) and component (b) can impart sufficient smoothness and softness to the hair both during rinsing and after drying.

  The hair cosmetic composition of the present invention can further contain (c) a cationic surfactant. As a cationic surfactant of this component (c), the quaternary ammonium compound represented by General formula (10) or the tertiary amine compound represented by General formula (11) is mentioned.

[Wherein, R ³ , R ⁴ , R ⁵ and R ⁶ are functional groups represented by —O—, —CONH—, —OCO— or —COO—, at least one of which has an average carbon number of 8 to 35. Represents a linear or branched alkyl group, alkenyl group, aryl group or aralkyl group which may be divided by or substituted with —OH, and the remainder represents an alkyl group or hydroxyalkyl group having 1 to 5 carbon atoms. An ⁻ represents a halide ion or an organic anion. ]

[Wherein R ⁷ is a straight chain which has an average carbon number of 8 to 35 and may be divided by a functional group represented by —O—, —CONH—, —OCO— or —COO— or substituted with —OH. Alternatively, it represents a branched alkyl group or alkenyl group, R ⁸ represents an alkyl group having 1 to 22 carbon atoms or a hydroxyalkyl group, and two R ^{8 s} may be the same or different. ]

  The tertiary amine compound represented by the general formula (11) may be used as a salt with an organic acid and / or an inorganic acid, or by adding an acid to the hair cosmetic of the present invention and adjusting the pH. Salts may be formed in the composition. Examples of such acids include acids such as alkylphosphoric acid, alkylsulfonic acid and alkylsulfuric acid having an alkyl group having 1 to 3 carbon atoms; acidic amino acids such as L-glutamic acid and L-aspartic acid; pyroglutamic acid; benzoic acid, Aromatic acids such as p-toluenesulfonic acid; hydroxy acids such as glycolic acid, lactic acid, glyceric acid, gluconic acid, pantothenic acid, malic acid, tartaric acid and citric acid; and other phosphoric acid, hydrochloric acid, acetic acid and succinic acid It is done. Of these, organic acids are preferable from the viewpoint of providing moisturizing and softening effects on the hair, particularly acidic amino acids, pyroglutamic acid, and hydroxy acids, and hydroxy acids are more preferable.

More specific examples of the cationic surfactant of component (c) include, for example, the following quaternary ammonium salts (i) to (iii) and tertiary amine compounds (iv) to (vi) ( And salts thereof).
(i) Alkyltrimethylammonium salt Examples include compounds represented by the following general formula (12).

[Wherein R ⁹ represents an alkyl group having an average carbon number of 12 to 22, and An ⁻ represents the same meaning as described above. ]

(ii) Alkoxyalkyltrimethylammonium salt Examples include compounds represented by the following general formula (13).

[Wherein, R ¹⁰ represents an alkyl group having an average carbon number of 12 to 22, R ¹¹ represents an ethylene group, a trimethylene group or a propylene group, and An ⁻ represents the same meaning as described above. ]

(iii) Dialkyldimethylammonium salt Examples include compounds represented by the following general formula (14).

[Wherein, R ¹² represents an alkyl group having 12 to 22 carbon atoms or a benzyl group, and An ⁻ represents the same meaning as described above. ]

(iv) Hydroxy ether alkyl amines (and their salts)
Examples thereof include compounds represented by the following general formula (15) and salts thereof.

[Wherein, R ¹³ represents a linear or branched alkyl group or alkenyl group having 6 to 24 carbon atoms on average, and R ¹⁴ and R ¹⁵ independently represent an alkyl group having 1 to 6 carbon atoms or — ( AO) _f H (A represents an alkylene group having 2 to 4 carbon atoms, f represents a number of 1 to 6, and f AOs may be the same or different, and the arrangement thereof is arbitrary). e shows the number of 1-5. ]

(v) Etheramine (and its salt)
Examples thereof include compounds represented by the following general formula (16) and salts thereof.

[Wherein R ¹⁶ represents a linear or branched alkyl group or alkenyl group having 6 to 24 carbon atoms on average, R ¹⁷ represents a linear or branched alkylene group having 1 to 5 carbon atoms, R ¹⁸ And R ¹⁹ are independently an alkyl group having 1 to 6 carbon atoms, or — (AO) _m H (A is an alkylene group having 2 to 4 carbon atoms, m is a number of 1 to 6; May be the same or different, and the sequence thereof is arbitrary), and f represents an integer of 1 to 8. ]

(vi) alkylamidoamine (and its salt)
Examples thereof include compounds represented by the following general formula (17) and salts thereof.

[Wherein, R ²⁰ represents an aliphatic hydrocarbon group having an average carbon number of 11 to 23, R ²¹ may be the same or different, and represents an alkyl group having 1 to 4 carbon atoms; Indicates a number. ]

Examples of cationic surfactants other than the above (i) to (vi) include ethyl lanolin sulfate fatty acid amidopropylethyldimethylammonium, ethyl sulfate lanolin fatty acid amide ethyltriethylammonium, ethyl sulfate lanolin fatty acid amidepropyltriethylammonium, methyl sulfate lanolin fatty acid. amidoethyl trimethyl ammonium, lanolin fatty acid amidopropyl dimethylammonium methyl sulfate, ethyl sulfate isoalkanes acid (C ₁₄ ~C ₂₀₎ amidopropyl dimethylammonium ethyl sulfate isoalkanes acid (C ₁₈ ~C ₂₂₎ amidopropyl dimethylammonium, ethyl Amidopropylethyldimethylammonium isostearate sulfate, isonpropylethyldimethylammonium isononate ethylsulfate, alkyltols Examples include limethylammonium saccharin.

  These cationic surfactants of component (c) can be used alone or in combination of two or more. The content of the cationic surfactant as the component (c) is 0.1 to 15% by mass in the hair cosmetic composition of the present invention from the viewpoint of imparting good flexibility and slipperiness during use of the hair cosmetic composition. Is more preferable, 0.1 to 10% by mass, particularly 0.2 to 5% by mass is preferable.

  For the purpose of enhancing the hair protecting effect such as providing the hair cosmetic of the present invention with a dry slipperiness, flexibility or gloss after drying, a polyorganosiloxane component other than component (a) as component (d) May be blended. Examples of such an organopolysiloxane component include dimethylpolysiloxane, functional group-modified silicone, and the like, and examples thereof include the following (A) to (I).

(A) Dimethylpolysiloxane: General formula (18)

[Wherein, r represents a number of 0 to 650. ]
Examples include the SH200C series, 1cs, 50cs, 200cs, 1000cs, and 5000cs (Toray Dow Corning).

(B) High molecular weight dimethylpolysiloxane Examples include BY11-026, BY22-19, and FZ-3125 (Toray Dow Corning). In addition, when blending the high molecular weight dimethylpolysiloxane in the hair cosmetic composition of the present invention, it is blended by dissolving in liquid oil, or the component (b) cationic surfactant, polyoxyethylene alkyl ether, etc. It is preferable to mix a dispersion prepared in an aqueous solution of a nonionic surfactant. Examples of the liquid oil include dimethylpolysiloxane (A) described above, cyclic silicone (E) described later, and isoparaffinic hydrocarbon.

(C) Amino-modified silicone: general formula (19)

[Wherein R ²² represents a methyl group, R ²³ represents the same group as R ²⁴ , a methyl group or a hydroxyl group, R ²⁴ represents —R ²⁵ —L (where R ²⁵ is a divalent carbon atom having 3 to 6 carbon atoms) Represents a hydrogen group, L represents a primary to tertiary amino group-containing group or an ammonium group-containing group), s and r are positive integers, and s + r depends on the molecular weight. A preferable average molecular weight is 3000 to 10,000. ]
Examples include SS-3551 and SF8452C (Toray Dow Corning). The amino-modified silicone may be used as an aqueous emulsion, and the amount of the amino-modified silicone contained in such an aqueous emulsion is preferably 20 to 60% by mass, and more preferably 30 to 50% by mass. Preferred amino-modified silicone aqueous emulsions include SM8704C (Toray Dow Corning).

(D) Polyether-modified silicone Examples include SH3771M (Toray Dow Corning), SILSOFT A-843, and SILSOFT SHINE (both are momentary).

(E) Cyclic silicone Examples include SH244 and SH245 (both Toray and Dow Corning).

(F) Fluorine-modified silicone Examples thereof include XS66-B8226, XS66-C1191 (both momentary), FL-5, FL-10 (Shin-Etsu Chemical).

(G) Alkyl-modified silicone Examples include KT-18, SILSOFT 034 (both momentary), 2503 Cosmetic Wax (Toray Dow Corning), KF-7002 (Shin-Etsu Chemical).

(H) Amino-modified siloxane-polyoxyalkylene block copolymer: general formula (20)

[Wherein R ²⁶ represents a hydrogen atom or a monovalent hydrocarbon group having 1 to 6 carbon atoms, R ²⁷ represents R ²⁶ or D, D represents —R ²⁸ —T (where R ²⁸ represents a bond) Or a divalent hydrocarbon group having 1 to 20 carbon atoms, T represents a primary to tertiary amino group-containing group or an ammonium group-containing group), and u represents 2 or more. V represents a number of 1 or more, w represents a number of 2 to 10, x represents a number of 4 or more, and x C _w H _2w O may be the same or different. y represents a number of 2 or more, and E represents a divalent organic group linking the silicone block and the polyoxyalkylene block chain. A plurality of R ²⁶ and D may be the same or different. ]
An example is FZ-3789 (Toray Dow Corning).

(I) Dimethiconol (both ends of dimethylpolysiloxane are hydroxyl groups)
For example, 1501 Fluid, 1503 Fluid (both Toray and Dow Corning), X-21-5849 (Shin-Etsu Chemical Co., Ltd.) and the like can be mentioned.

  Of these, (A) dimethylpolysiloxane, (B) high molecular weight dimethylpolysiloxane, (E) cyclic silicone, or a mixture thereof, (C) amino-modified silicone, (H) amino-modified siloxane-polyoxyalkylene block copolymer Among them, (C) amino-modified silicone and (H) amino-modified siloxane-polyoxyalkylene block copolymer are particularly preferable.

  The content of the polyorganosiloxane component other than the component (a) in the hair cosmetic composition of the present invention can be appropriately selected depending on the balance with the other compounding components while giving a good feel to the hair. From the viewpoints of sufficient effect and preferable usability, 0.05 to 15% by mass is preferable, 0.1 to 10% by mass is further preferable, and 0.1 to 5% by mass is particularly preferable.

  The hair cosmetic composition of the present invention may contain an aliphatic alcohol having an average carbon number of 8 to 30. Such aliphatic alcohols include linear or branched, saturated or unsaturated, but are preferably aliphatic alcohols having an average carbon number of 10 to 26, and linear saturated aliphatic alcohols are particularly preferred. . Specific examples include dodecyl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, oleyl alcohol, behenyl alcohol, ceryl alcohol, myristyl alcohol, carnervir alcohol, aralkyl alcohol, octyldodecyl alcohol, and the like.

  These aliphatic alcohols can be used alone or in combination of two or more. The content of the aliphatic alcohol is preferably 0.5 to 15% by mass, more preferably 1 to 10% by mass in the hair cosmetic composition of the present invention.

  The hair cosmetic composition of the present invention can further contain an organic solvent. Examples of the organic solvent include the following (d1) to (d5).

(D1) Alcohols mentioned by the following general formula (21)

[In the formula, R ²⁹ represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or R ³⁰ —Ph—R ³¹ — (R ³⁰ : a hydrogen atom, a methyl group or a methoxy group, R ³¹ : a bond or a carbon number of 1 to 3 is a saturated or unsaturated divalent hydrocarbon group (Ph: paraphenylene group), L and M are hydrogen atoms or hydroxyl groups, and Q is a bond or a divalent saturated carbon atom having 1 to 5 carbon atoms. A hydrogen group, i and j each represent an integer of 0 to 5; However, when i = j = 0, L is a hydroxyl group, and R ²⁹ is neither a hydrogen atom nor a group R ³⁰ —Ph—. ]

(D2) N-alkylpyrrolidone having an alkyl group having 1 to 18 carbon atoms bonded to a nitrogen atom (d3) alkylene carbonate having an alkylene group having 2 to 4 carbon atoms (d4) polyethylene glycol or polypropylene glycol having a molecular weight of 200 to 5000 (D5) Lactone or cyclic ketone represented by the following general formula (22), (23) or (24)

[Wherein, J represents a methylene group or an oxygen atom, R ³² and R ³³ represent different substituents, and p and q represent 0 or 1. ]

  Among organic solvents, (d1) includes lower alcohols such as ethanol, propanol, butanol; glycerin, diglycerin, triglycerin, tetraglycerin, ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, 1,3-butylene glycol Polyhydric alcohols such as 1,4-butylene glycol; aromatic alcohols such as benzyl alcohol, phenethyl alcohol, p-anisyl alcohol, p-methylbenzyl alcohol, phenoxyethanol, 2-benzyloxyethanol; methyl carbitol, ethyl Examples include carbitol, propyl carbitol, butyl carbitol, triethylene glycol monoethyl ether, and triethylene glycol monobutyl ether.

Examples of (d2) include N-methylpyrrolidone, N-octylpyrrolidone, N-laurylpyrrolidone and the like. Examples of (d3) include ethylene carbonate and propylene carbonate. As the polyethylene glycol and polypropylene glycol of (d4), those having a molecular weight of 200 to 1000 are preferable.

In (d5), examples of the ring substituents R ³² and R ³³ in the general formulas (22) to (24) include linear, branched, and cyclic alkyl groups, hydroxyl groups, sulfonic acid groups, phosphoric acid groups, and carboxyl groups. , Phenyl group, sulfoalkyl group, alkyl phosphate group, carboxyalkyl group and the like. Among them, in the case of γ-lactone, a γ-position, and in the case of δ-lactone, a linear or branched alkyl group having 1 to 6 carbon atoms substituted at the δ position (that is, methylene adjacent to each heterooxygen atom), for example, A methyl group, ethyl group, propyl group, isopropyl group, butyl group and the like are preferable. When it is desired to increase the water solubility of the compounds of the formulas (22) to (24), R ³² or R ³³ is an acidic group such as a sulfonic acid group, a phosphoric acid group or a carboxyl group, or an alkyl group substituted by these. It is preferable to have. Examples of the lactone in (d5) include γ-butyrolactone, γ-caprolactone, γ-valerolactone, δ-valerolactone, δ-caprolactone, and δ-heptanolactone. From the viewpoint of lactone stability, γ-lactone, particularly γ-butyrolactone and γ-caprolactone are preferred. Examples of the cyclic ketone in (d5) include cyclopentanone, cyclohexanone, cycloheptanone, 4-methylcycloheptanone and the like.

  These organic solvents can be used alone or in combination of two or more. The content of the organic solvent is from 0.1 to 30% by mass, more preferably from 0.1 to 20% by mass, and further from the viewpoint of improving the feeling of use, gloss, and flexibility of the hair cosmetic of the present invention. 2-10 mass% is preferable.

  It is preferable to further add an organic acid to the hair cosmetic composition of the present invention. As the organic acid, an organic acid having 8 or less carbon atoms is preferable, and a monocarboxylic acid, dicarboxylic acid, tricarboxylic acid or hydroxycarboxylic acid having 8 or less carbon atoms is particularly preferable. Specifically, as the dicarboxylic acid, malonic acid, succinic acid, glutaric acid, adipic acid, maleic acid, fumaric acid, phthalic acid, oxalic acid, malic acid, tartaric acid and the like, and as the tricarboxylic acid, citric acid and the like, Examples of the hydroxycarboxylic acid include glycolic acid, lactic acid, hydroxyacrylic acid, oxybutyric acid, glyceric acid, malic acid, tartaric acid, and citric acid. Of these, glycolic acid, lactic acid, malonic acid, maleic acid, and malic acid are preferred. Examples of these organic acid salts include salts with alkali metals, alkaline earth metals, ammonia, and organic compounds.

  These organic acids can be used alone or in combination of two or more. The content of the organic acid is preferably 0.1 to 5% by mass, more preferably 0.2 to 3% by mass, particularly 0% in the hair cosmetic composition of the present invention from the viewpoint of improving the finish of hair such as gloss and unity. 0.5-2 mass% is preferable.

  Moreover, in the hair cosmetics of this invention, an oil agent can be contained as another conditioning agent. Oils include hydrocarbons such as petrolatum, squalene, squalane, liquid paraffin, liquid isoparaffin, and cycloparaffin; fats and oils such as castor oil, cacao oil, mink oil, avocado oil, olive oil, sunflower oil, coconut oil; Waxes such as wax, lanolin, carnauba wax; isopropyl palmitate, isopropyl myristate, octyldodecyl myristate, hexyl laurate, cetyl lactate, propylene glycol monostearate, oleyl 2-ethylhexanoate, isononyl isononanoate Esters such as tridecyl isononanoate; capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, coconut oil fatty acid, isostearic acid, isopalmitic acid, lanolin Higher fatty acids such as fatty acid; Other isostearyl glyceryl ether, polyoxypropylene butyl ether.

  Further, the hair cosmetic composition of the present invention may contain a nonionic surfactant. Nonionic surfactants include polyoxyalkylene sorbitan fatty acid ester, polyoxyalkylene sorbit fatty acid ester, polyoxyalkylene glycerin fatty acid ester, polyoxyalkylene fatty acid ester, polyoxyalkylene alkyl ether, polyoxyalkylene alkyl phenyl ether, polyoxyalkylene ether Examples include alkylene (hardened) castor oil, sucrose fatty acid ester, glycerin fatty acid ester, polyglycerin alkyl ether, polyglycerin fatty acid ester, fatty acid alkanolamide, alkyl glycoside, monoalkyl glyceryl ether, monoalkenyl glyceryl ether and the like.

  The hair cosmetic composition of the present invention preferably has a pH of 2 to 6 and more preferably 2 to 5 when applied to hair from the viewpoint of improving the gloss and unity of the hair. Here, the pH of the hair cosmetic composition of the present invention is measured at 25 ° C. with respect to an aqueous solution diluted 20 mass times with water.

  The hair cosmetic composition of the present invention is added with a hair repair component for the purpose of repairing damaged hair such as giving the hair a moist and coherent feeling after drying and repairing the original gloss or vivid color of the hair. It is preferable. As the compound having a hair repair effect, amino acids or amino acid derivatives, vitamins, sphingosines, and ceramides are preferable.

  Examples of amino acids include arginine, lysine, histidine, proline, cysteine, methionine, serine, threonine, tyrosine, glutamine, and isoleucine. Particularly preferred are arginine and lysine. Examples of amino acid derivatives include trimethylglycine, peptides such as dipeptides and tripeptides, acylated amino acids, acylalkylamino acids, and the like. In addition, amino acid derivatives include keratin, elastin, collagen, lactoferrin, casein, α or β-lactalbumin, globulin, ovalbumin, silk, shell-derived shells or proteins obtained from pearls, and other proteins derived from animals and their hydrolysates. Proteins derived from plants such as degraded products, wheat, malt, and soybean, and hydrolysates thereof are also included. Of these, keratin, elastin, collagen, casein and hydrolysates thereof, wheat protein, soybean protein, silk protein and hydrolysates thereof are preferred.

  In the present invention, these amino acids and amino acid derivatives can be used alone or in combination of two or more. Moreover, the content is 0.01-7 mass% in the hair cosmetics of this invention, Especially 0.05-2 mass% is preferable.

Examples of vitamins include tocopherol acetate, ascorbic acid, vitamin B ₁ , vitamin B ₅ , vitamin D, vitamin A, nicotinic acid amide, panthenol, pantothenyl ethyl ether, etc., among which tocopherol acetate, panthenol, pantothenyl Ethyl ether is preferred. When vitamins are contained, the blending amount is preferably 0.01 to 2% by mass, particularly preferably 0.05 to 1% by mass, based on the total amount of the hair cosmetic composition of the present invention.

Examples of sphingosines include dihydrosphingosine and phytosphingosine.
Examples of ceramides include N-acylated sphingosines, N-acylated phytosphingosines, and N-acylated dihydrosphingosines obtained by synthesis or extraction from natural products. The substituent substituted with sphingosine, dihydrosphingosine, or phytosphingosine is an acyl group having a linear or branched chain, saturated or unsaturated hydrocarbon group having 8 to 22 carbon atoms, and the hydrogen atom of the group. 1 to 5 may be substituted with a hydroxyl group. These ceramides include, for example, ceramide 1, ceramide 2, ceramide 3, ceramide 1A, ceramide 6II, hydroxycaproylphytosphingosine, sphingolipid EX (Japanese Patent Laid-open No. Hei 8-319263), sphingolipid E (special) Synthetic pseudo ceramides such as Japanese Kokai 62-228048) can also be used. One or more kinds of ceramides can be used, and the content thereof is preferably 0.01 to 5% by mass, more preferably 0.05 to 2% by mass, and particularly preferably 0.1 to 1% by mass in the total composition.

  The hair cosmetic of the present invention may further contain other components generally used in hair cosmetics depending on the purpose. For example, polymer compounds such as cationized cellulose, cationized guar gum, cationized locust bean gum, cationized tara gum, cationized fenugreek gum, hydroxyalkylated cellulose, highly polymerized polyethylene oxide; alkyl sulfates, alkyl phosphates, alkenyls Sulfate, alkylbenzene sulfonate, polyoxyalkylene alkyl ether sulfate, polyoxyalkylene alkenyl ether sulfate, sulfosuccinic acid alkyl ester salt, polyoxyalkylene sulfosuccinic acid alkyl ester salt, α-olefin sulfonate, polyoxyalkylene alkyl Phenyl ether sulfate, glyceride sulfate, amide ether sulfate, alkane sulfonate, α-sulfo fatty acid ester salt, alkyl ether carboxylic acid Anti-dandruff agents such as zinc pyrithione and benzalkonium chloride; bactericides such as salicylic acid, triclosan and piroctone olamine; anti-inflammatory agents; preservatives such as parabens; edetate salt, hydroxyethane diphosphon Sequestering agents such as acids; moisturizing agents such as sorbitol and panthenol; coloring agents such as dyes and pigments; polar solvent extract of eucalyptus, ginseng extract, rice germ extract, hibamata extract, camellia extract, aloe Extracts such as extract, moon peach leaf extract, chlorella extract; pearlizing agent containing ethylene glycol monofatty acid ester, ethylene glycol difatty acid ester, ethylene glycol monoalkyl ether or ethylene glycol dialkyl ether; pearl powder such as titanium oxide Body; Fragrance; Paramethoxycinnamic acid-2-ethyl UV absorbers such as hexyl, oxybenzone and para-dimethylaminobenzoic acid-2-ethylhexyl; antioxidants; pH adjusters such as sodium hydroxide and potassium hydroxide; other encyclopedias of shampoos and inglydients [ENCYCLOPEDIA OF SHAMPOO INGREDIENTS (MICELLE PRESS)].

  The hair cosmetic composition of the present invention can be made into a desired dosage form such as an aqueous solution, an ethanol solution, an emulsion, a suspension, a gel, a liquid crystal, a solid, and an aerosol. For example, a hair rinse, a hair conditioner, a hair treatment, a hair pack, a hair Applicable to cream, conditioning mousse, hair mousse, hair spray, shampoo, leave-on treatment, etc. In particular, it is suitable as a dosage form to be used after washing away, such as shampoo, hair rinse, hair conditioner, hair treatment.

“%” In Examples and Comparative Examples means “% by mass” unless otherwise specified. Each prescription is 100% by mass.
PH in an Example and a comparative example shows the value in 25 degreeC when diluted 20 mass times with water.

(Examples 1-9 and Comparative Examples 1-5)
According to the composition shown in Table 2 or Table 4, a hair cosmetic (hair conditioner) was produced by a conventional method. In the table, the content of each component is indicated by mass%.

Sensory evaluation test method A hair bundle (20 g, 20 cm) of a Japanese woman bleached with a commercially available bleaching agent was subjected to sensory evaluation while 5 panelists treated the hair bundle in the following manner.

(Evaluation methods)
After applying 2 g of the hair cosmetics shown in Tables 2 and 4 to a hair bundle washed with 3 g of standard shampoo having the composition shown in Table 1 below, the hair was thoroughly adapted to the whole hair, and then heated at about 40 ° C. for about 30 seconds. An evaluation was made when rinsing under running water. Next, towel drying was performed, and after drying with a dryer, evaluation after drying was performed. The sensory evaluation was performed for the smoothness, softness, no creaking, and the smoothness, slipperiness, softness, and moisturizing effect of the hair after rinsing, and the following criteria were used. The results are shown in Tables 3 and 4.

◎: 4 to 5 people responded effective ○: 3 people responded effective △: 2 people answered effective ×: 1 or 0 responded that it was effective

(Example 10)
A hair conditioner (pH 4.5) having the composition shown in Table 5 below was prepared by a conventional method.

  This hair conditioner had good smoothness during rinsing, flexibility, smoothness, smoothness after drying, softness, and combing feeling.

(Example 11)
A hair treatment (pH 4.0) having the composition shown in Table 6 below was prepared by a conventional method.

  This hair conditioner had good smoothness during rinsing, flexibility, smoothness, smoothness after drying, softness, and combing feeling.

Example 12
A hair treatment (pH 3.3) having the composition shown in Table 7 below was prepared by a conventional method.

  This hair treatment had good smoothness at the time of rinsing, softness, smoothness, smoothness after drying, softness, and feeling of combing.

(Example 13)
A hair conditioner (pH 3.3) having the composition shown in Table 8 below was prepared by a conventional method.

(Example 14)
A hair treatment (pH 3.3) having the composition shown in Table 9 below was prepared by a conventional method.

(Example 15)
A hair treatment (pH 3.3) having the composition shown in Table 10 below was prepared by a conventional method.

  This hair treatment had good smoothness at the time of rinsing, softness, smoothness, smoothness after drying, softness, and feeling of combing.

Claims (5)

The following components (a) and (b):
(A) Organopolysiloxane containing at least one organic group having a plurality of hydroxyl groups (b) Branched fatty acid represented by the general formula (1) or a salt thereof

[Wherein, R ₁ represents a methyl group or an ethyl group, n is a number of 3-36. ]
Hair cosmetics containing. The component (a) has an average of three or more glycerol groups represented by the following structural formula (2), (3), (4) or (5), and is represented by the structural formula (2). The hair cosmetic according to claim 1, wherein the branched polyglycerol chain containing at least one branched glycerol group is a branched polyglycerol-modified silicone bonded to at least one silicon atom of the silicone via a linking group.

The hair cosmetic according to claim 2, wherein the linking group is a group represented by the formula (8) or (9).

  Furthermore, the hair cosmetics as described in any one of Claims 1-3 containing (c) cationic surfactant.   Furthermore, (d) Hair cosmetics as described in any one of Claims 1-4 containing organopolysiloxane other than the said component (a).