WO2011033991A1

WO2011033991A1 - Shampoo composition

Info

Publication number: WO2011033991A1
Application number: PCT/JP2010/065557
Authority: WO
Inventors: 恭生永原; 泉花原; 直子熊田
Original assignee: ライオン株式会社
Priority date: 2009-09-17
Filing date: 2010-09-09
Publication date: 2011-03-24
Also published as: JP2011063548A; HK1167612A1; KR20120074275A; CN102510750B; KR101776348B1; CN102510750A; JP5502408B2

Abstract

Disclosed is a shampoo composition that comprises (A) a cationic surfactant, (B) a C_12-24 long-chain aliphatic alcohol, (C) 10 mass% to 30 mass% of an amphoteric surfactant, and (D) 8 mass% to 30 mass% of glycerol, and in which the mass ratio of the aforementioned (C) component and the aforementioned (D) component [(D)/((C)+(D))] is 0.30 to 0.70.

Description

Shampoo composition

The present invention prevents “entanglement at the time of shampooing” of hair damaged by repeated coloring, permanents, and excessive dryer drying, and eliminates “pasting after drying” and reduces “skin rustling”. It relates to a shampoo composition that can be made.

In recent years, there has been an increase in the number of women who perform chemical treatments such as coloring and perm, so that the hair is damaged, especially with wet hair, `` hairs tend to get tangled together '', and hair and split ends are likely to occur. I am worried about the dryness of hair after drying. In addition, the scalp is damaged by external stimuli such as drying, ultraviolet rays, and drugs used for coloring, and “scaling of the scalp” is felt.
As a means to solve such problems, by adding a cationic surfactant or higher alcohol, which is a rinse component, to the shampoo composition, the liquid crystal structure adsorbs to the hair and expresses smoothness when rinsing the hair. However, various techniques for suppressing the dryness of hair after drying and giving a smooth feel have been proposed.

As such a shampoo composition, for example, a liquid crystal dispersion cleaning composition comprising a cationic surfactant, a higher alcohol and a polyglycerol fatty acid ester (see Patent Document 1), a cleaning composition such as an amphoteric surfactant, a cationic interface A shampoo composition containing an activator and an oil component forming a liquid crystal structure (see Patent Document 2), a silicone compound, a poorly water-soluble liquid crystal structure, and a detersive surfactant containing an amphoteric surfactant (Patent Document) 3) is proposed.

However, each of the above prior art documents contains a preservative (paraben, benzoic acid or a salt thereof, etc.) in order to obtain long-term storage stability of the preparation, and therefore, for people with weak skin or people with dry skin. It is known that the stimulation is too strong and may cause skin disorders such as contact dermatitis and allergies (see Non-Patent Document 1). In addition, the effect of preventing “entanglement at the time of shampooing” of hair damaged by repeated coloring, perm, and excessive drying of the hair, eliminating “pasting after drying”, and reducing the “background scalp” It is not sufficient, and the current situation is that further improvement and development are desired.

JP 2001-311099 A JP 2004-292387 A JP 2004-262805 A

This invention makes it a subject to solve the said conventional problems and to achieve the following objectives. In other words, the present invention prevents “entanglement at the time of shampooing” of hair damaged by repeated coloring, permanents, and excessive dryer drying, eliminates “pasting after drying”, and reduces “skin rustling”. It is an object of the present invention to provide a shampoo composition that is excellent in preservative power even if it contains no preservative (paraben, benzoic acid or its salt, etc.).

As a result of extensive studies by the present inventors in order to solve the above problems, (A) a cationic surfactant, (B) a long chain aliphatic alcohol having 12 to 24 carbon atoms, and (C) 10 masses of an amphoteric surfactant. % To 30% by mass and (D) 8% to 30% by mass of glycerin, and the mass ratio of the component (C) to the component (D) [(D) / ((C) + (D)) ] From 0.30 to 0.70, these synergistic effects make it excellent in preservative power even without a preservative (paraben, benzoic acid or its salt, etc.), prevent entanglement during hair washing, and dry It was found that a shampoo composition excellent in the subsequent lack of roughness and excellent in long-term storage stability of the preparation can be obtained.
Furthermore, it has been found that the effect of suppressing scuffing of the background is dramatically improved, preferably by adding (E) an alkylamine oxide.

The present invention is based on the above findings by the present inventors, and means for solving the above problems are as follows. That is,
<1> (A) Cationic surfactant, (B) Long-chain aliphatic alcohol having 12 to 24 carbon atoms, (C) Amphoteric surfactant 10% by mass to 30% by mass, and (D) Glycerin 8% by mass Containing 30% by weight,
A shampoo composition wherein the mass ratio of the component (C) to the component (D) [(D) / ((C) + (D))] is 0.30 to 0.70. .
<2> Further contains (E) alkylamine oxide 0.3% by mass to 5% by mass,
The shampoo composition according to <1>, wherein the mass ratio [(D) / (E)] of the component (D) and the component (E) is 5 to 40.
<3> The shampoo composition according to any one of <1> to <2>, wherein the cationic surfactant as the component (A) is a compound represented by the following general formula (1).

However, in the general formula (1), at least one of R ³ and R ⁴ is a linear or branched alkyl or alkenyl group having 12 to 28 carbon atoms. One of R ³ and R ⁴ is a methyl group or an ethyl group, and these may be the same as or different from each other. R ⁵ and R ⁶ are a methyl group or an ethyl group. Z ⁻ represents an anion.
<4> The shampoo composition according to any one of <1> to <3>, wherein the long-chain aliphatic alcohol as the component (B) has 16 to 22 carbon atoms.

According to the present invention, various problems in the past can be solved, preventing entanglement of hair damaged by repeated coloring, permanents, and excessive dryer drying, and eliminating `` pasting after drying '' At the same time, it is possible to reduce the “background scalp”, and it is possible to provide a shampoo composition having an excellent antiseptic power even if a preservative (paraben, benzoic acid or a salt thereof, etc.) is not added.

The shampoo composition of the present invention contains (A) a cationic surfactant, (B) a long-chain aliphatic alcohol, (C) an amphoteric surfactant, and (D) glycerin, preferably (E) an alkylamine oxide. And further contains other components as required.

<(A) Cationic surfactant>
The cationic surfactant of the component (A) is not particularly limited as long as it can be blended in the shampoo composition, and may be used alone or in combination of two or more. Among these, a cationic surfactant having a hydrocarbon group having 12 or more carbon atoms is preferable.
The hydrocarbon group having 12 or more carbon atoms may be divided by a functional group such as —O—, —CONH—, —COO—, etc., and the carbon number of 12 includes, for example, —CONH—, —COO—, etc. Contains the carbon number of the functional group.

The cationic surfactant of the component (A) is usually contained in the form of a salt, specifically, inorganic salts such as hydrochloride, bromate, sulfate, phosphate, etc .; glycolate, acetate And organic acid salts such as lactate, succinate, tartrate, citrate, acidic amino acid salt, higher fatty acid salt, pyroglutamate, and p-toluenesulfonate.

The cationic surfactant having a hydrocarbon group having 12 or more carbon atoms is not particularly limited as long as it can be blended in a shampoo composition, and can be appropriately selected according to the purpose. ) Quaternary ammonium salt, (2) quaternary ammonium salt containing 1 to 3 ester groups in the molecule, (3) amidoamine type surfactant, (4) amine type surfactant, (5) guanidine derivative Or a salt thereof, (6) an amino acid-based cationic surfactant, and the like.

-Quaternary ammonium salt-
As said quaternary ammonium salt, the compound represented by following General formula (1) is suitable.

In the general formula (1), at least one of R ³ and R ⁴ is a linear or branched alkyl or alkenyl group having 12 to 28 carbon atoms, preferably 16 to 24 carbon atoms, more preferably 22 carbon atoms. And straight chain alkyl groups are particularly preferred. Either one of R ³ and R ⁴ may be a methyl group or an ethyl group, and these may be the same as or different from each other.
R ⁵ and R ⁶ are both methyl groups or ethyl groups.
Z ⁻ represents an anion, and examples thereof include CH ₃ SO ₄ ⁻ , C ₂ H ₅ SO ₄ ⁻ , Cl ⁻ and Br ⁻ .

Examples of the quaternary ammonium salt represented by the general formula (1) include behenyltrimethylammonium chloride and dibehenyldimethylammonium chloride.

-Quaternary ammonium salt containing 1 to 3 ester groups in the molecule-
Examples of the quaternary ammonium salt containing one ester group in the molecule include compounds represented by the following general formula (2).

In the general formula (2), R ⁷ is a linear or branched alkyl group or alkenyl group having 12 to 26 carbon atoms and including one ester group.
R ⁸ represents a methyl group, an ethyl group, or a hydroxyalkyl group having 1 to 4 carbon atoms, and the R ⁸ may be the same or different from each other.
X ⁻ represents an anion, and examples thereof include CH ₃ SO ₄ ⁻ , C ₂ H ₅ SO ₄ ⁻ , Cl ⁻ and Br ⁻ .

The quaternary ammonium salt containing one ester group in the molecule is preferably a compound represented by the following general formula (3).

In the general formula (3), R ⁹ represents a linear or branched alkyl group or alkenyl group having 9 to 23 carbon atoms, and as R ⁹ , the linear alkyl group having 13 to 21 carbon atoms or Alkenyl groups are preferred. Specifically, R ⁹ is preferably a residue obtained by removing a carboxyl group from a fatty acid such as stearic acid, palmitic acid, myristic acid, oleic acid, and elaidic acid.

Examples of the quaternary ammonium salt containing two ester groups in the molecule include compounds represented by the following general formula (4).

In the general formula (4), R ⁷ , R ⁸ and X ⁻ have the same meaning as in the general formula (2). R ⁷ and R ⁸ may be the same as or different from each other.

The quaternary ammonium salt containing two ester groups in the molecule is preferably a compound represented by the following general formula (5).

In the general formula (5), R ⁹ has the same meaning as in the general formula (3). R ⁹ may be the same as or different from each other, and is preferably a linear alkyl group or alkenyl group having 13 to 21 carbon atoms. Specifically, R ⁹ is preferably a residue obtained by removing a carboxyl group from a fatty acid such as stearic acid, palmitic acid, myristic acid, oleic acid, and elaidic acid.

Examples of the quaternary ammonium salt containing three ester groups in the molecule include compounds represented by the following general formula (6).

In the general formula (6), R ⁷ , R ⁸ and X ⁻ have the same meaning as in the general formula (2). R ⁷ may be the same as or different from each other.

The quaternary ammonium salt containing three ester groups in the molecule is preferably a compound represented by the following general formula (7).

In the general formula (7), R ⁹ has the same meaning as in the general formula (3). R ⁹ may be the same as or different from each other, and is preferably a linear alkyl group or alkenyl group having 13 to 21 carbon atoms. Specifically, R ⁹ is preferably a residue obtained by removing a carboxyl group from a fatty acid such as stearic acid, palmitic acid, myristic acid, oleic acid, and elaidic acid.

R ⁹ is a residue obtained by removing a carboxyl group from a fatty acid having 10 to 24 carbon atoms, and is a group derived from one of a saturated fatty acid, an unsaturated fatty acid, a linear fatty acid, and a branched fatty acid. In the case of the unsaturated fatty acid, a cis form and a trans form exist, and the mass ratio (cis / trans) is preferably 25/75 to 80/20, and more preferably 40/60 to 80/20.
Examples of the fatty acid used as R ⁹ include stearic acid, palmitic acid, myristic acid, lauric acid, oleic acid, elaidic acid, linoleic acid, partially hydrogenated palm oil fatty acid (iodine value 10 to 60), partial Examples include hydrogenated beef tallow fatty acid (iodine value 10 to 60). Among these, oleic acid, elaidic acid, linoleic acid, and stearic acid are particularly preferable.
A predetermined amount of stearic acid, palmitic acid, myristic acid, oleic acid and elaidic acid derived from plants is combined to give a mass ratio (saturated / unsaturated) of 95/5 to 50/50, and a mass ratio of cis / trans isomer of 40 / It is preferably 60 to 80/20, the ratio of 18 carbon atoms is preferably 60% by mass or more, the fatty acid having 20 carbon atoms is 2% by mass or less, and the fatty acid having 22 carbon atoms is 1% by mass or less. It is preferable to use the fatty acid composition adjusted as described above.
The quaternary ammonium salt containing 1 to 3 ester groups in the molecule is obtained by a condensation reaction between the fatty acid composition or the fatty acid methyl ester composition and triethanolamine, followed by a quaternizing reagent such as dimethyl sulfate. It can be synthesized by a quaternization reaction.
Incidentally, the ^R 7 in the general formula (2) to (7) ^in, R 8, ^{R 9} and X ^- is, ^R 7 in the other formula (2) to ^(7), R 8, ^{R 9} and X ^- and they are each independently.

-Amidoamine type surfactant-
Examples of the amidoamine type surfactant include compounds represented by the following general formula (8).

In the general formula (8), R ¹⁰ preferably has 11 to 27 carbon atoms, more preferably 15 to 23, and still more preferably a linear or branched alkyl group or alkenyl group having 21 carbon atoms.
R ¹¹ is an alkyl group having 1 to 4 carbon atoms, preferably a methyl group or an ethyl group.
n represents an integer of 2 to 4.

Examples of the amidoamine type surfactant represented by the general formula (8) include stearic acid diethylaminoethylamide, stearic acid dimethylaminoethylamide, palmitic acid diethylaminoethylamide, coconut oil fatty acid diethylaminopropylamide, and palmitic acid dimethylamino. Ethylamide, myristic acid diethylaminoethylamide, myristic acid dimethylaminoethylamide, behenic acid diethylaminoethylamide, behenic acid dimethylaminoethylamide, stearic acid diethylaminopropylamide, stearic acid dimethylaminopropylamide, palmitic acid diethylaminopropylamide, palmitic acid Dimethylaminopropylamide, myristic acid diethylaminopropylamide, myristic acid dimethylaminopropyl Piruamido, behenic acid diethylaminopropylamide, like behenic acid dimethylaminopropylamide. These may be used individually by 1 type and may use 2 or more types together. Among these, stearic acid dimethylaminopropylamide, stearic acid diethylaminoethylamide, behenic acid diethylaminoethylamide, and behenic acid dimethylaminopropylamide are particularly preferable.
These surfactants are usually contained in the above-described various salt forms, and acidic amino acid salts, citrates, and hydrochlorides are preferable. In addition, the salt used for neutralization may be used individually by 1 type, and may use 2 or more types together.

-Amine type surfactant-
Examples of the amine surfactant include stearoxypropyldimethylamine.

-Guanidine derivatives or their salts-
As said guanidine derivative or its salt, the compound represented by following General formula (9) is mentioned.

However, in the general formula (9), R ¹² preferably has 11 to 27 carbon atoms, and more preferably a linear or branched alkyl group or alkenyl group having 11 to 21 carbon atoms. A is a linear or branched alkylene group having 1 to 10 carbon atoms or an alkenylene group. t is an integer of 1 to 5, and when t is 2 or more, A in each block may be different from each other.

Examples of R ¹² include C ₁₁ H _23- , C ₁₂ H _25- , C ₁₃ H _27- , C ₁₄ H _29- , C ₁₅ H _31- , C ₁₆ H _33- , C ₁₇ H _35- , (C ₈ H ₁₇ ) ₂ CH—, 4-C ₂ H ₅ C ₁₅ H ₃₀ — and the like. The substituent A in the general formula (9) preferably has 1 to 10 carbon atoms, more preferably a linear or branched alkylene group or alkenylene group having 2 to 6 carbon atoms, such as a methylene group, ethylene Group, propylene group, butylene group, pentylene group, hexylene group, isopropylene group, 2-pentenyl group, 2-ethylbutylene group and the like.
The guanidine derivative represented by the general formula (9) is usually contained in the above-described various salt forms, and in the form of hydrochloride, bromate, acetate, glycolate, citrate, or acidic amino acid salt. preferable.

-Amino acid-based cationic surfactant-
Examples of the amino acid-based cationic surfactants include mono-N-long chain (C12-22) acyl basic amino acid lower (C1-8) alkyl ester salts.
Examples of basic amino acids constituting the amino acid cationic surfactant include natural amino acids such as ornithine, lysine and arginine. Synthetic amino acids such as α, γ-diaminobutyric acid can also be used. These may be optically active or racemic.
The acyl group is a saturated or unsaturated higher fatty acid residue having 12 to 22 carbon atoms. These may be natural or synthesized, for example, natural mixtures such as single fatty acid residues such as lauroyl group, myristoyl group, palmitoyl group, stearoyl group, coconut oil fatty acid residue, beef tallow higher fatty acid residue, etc. And higher fatty acid residues.

Examples of the lower alkyl ester include methyl ester, ethyl ester, propyl ester, butyl ester, pentyl ester, hexyl ester, heptyl ester, octyl ester and the like. The lower alkyl ester is usually blended in the form of a salt, specifically, inorganic salts such as hydrochloride, bromate, sulfate, phosphate, etc .; glycolate, acetate, lactate, succinic acid And organic acid salts such as salts, tartrate, citrate, acidic amino acid salt, higher fatty acid salt, pyroglutamate, and p-toluenesulfonate. Among these, hydrochloride, L- or DL-pyrrolidone carboxylate, and acidic amino acid salt are particularly preferable.

Among these cationic surfactants of the component (A), the quaternary ammonium salt represented by the general formula (1) is preferable, and behenyltrimethylammonium chloride is particularly preferable in that it can provide no dryness after drying.

The content of the cationic surfactant of the component (A) (the total content when two or more are used) is not particularly limited and can be appropriately selected according to the purpose, and is based on the total amount of the shampoo composition. The content is preferably 1% by mass to 3% by mass. When the content is less than 1% by mass, the hair may not be entangled in wet hair and the hair may not be dry after drying. When the content exceeds 3% by mass, the hair is sticky. Such a weight may be generated, and the lack of smoothness may be reduced.

<(B) Long chain aliphatic alcohol having 12 to 24 carbon atoms>
The long-chain aliphatic alcohol having 12 to 24 carbon atoms as the component (B) can form a liquid crystal structure alone with the cationic surfactant of the component (A) in the shampoo composition. Particularly preferred.
When the number of carbon atoms is less than 12, skin irritation may occur and it may be difficult to form a liquid crystal structure with a cationic surfactant. When the number of carbon atoms exceeds 24, the melting point becomes high and the system is difficult to dissolve. It may be difficult to form a structure.

Examples of the long chain aliphatic alcohol having 12 to 24 carbon atoms as the component (B) include higher alcohols represented by the following general formula (10).
R ¹³ —OH: General formula (10)
However, in the general formula (10), R ¹³ is an aliphatic hydrocarbon group having 12 to 24 carbon atoms, preferably a linear or branched alkyl group or alkenyl group having 16 to 22 carbon atoms, A straight chain alkyl group of 16 to 22 is more preferred.

Examples of the long-chain aliphatic alcohol represented by the general formula (10) include myristyl alcohol, cetyl alcohol, stearyl alcohol, 2-hexyldecyl alcohol, cetostearyl alcohol, stearyl alcohol, isostearyl alcohol, octyldodecyl alcohol, Examples include aralkyl alcohol, behenyl alcohol, hardened rapeseed oil alcohol, oleyl alcohol, elaidyl alcohol, linoleyl alcohol, carnervir alcohol, and seryl alcohol. These may be used individually by 1 type and may use 2 or more types together. Among these, linear alcohols having 16 to 22 carbon atoms (cetyl alcohol, stearyl alcohol, behenyl alcohol, etc.) are preferable from the viewpoint of high-temperature stability, and behenyl alcohol having 22 carbon atoms is the cationic interface of (A). Since it is easy to form a liquid crystal structure with an activator and to be easily adsorbed to the hair, it is particularly preferable from the viewpoint of the dryness of the hair after drying.

The content of the long-chain aliphatic alcohol as the component (B) is not particularly limited and can be appropriately selected according to the purpose. The content is 0.5% by mass to 10% by mass with respect to the total amount of the shampoo composition. Preferably, 2% by mass to 10% by mass is more preferable from the viewpoints of no entanglement of hair in wet hair and no looseness of hair after drying. When the content is less than 0.5% by mass, there may be no entanglement of hair in wet hair, and there may be no dryness of hair after drying. Storage stability may deteriorate.

In the present invention, the mass ratio [(A) / (B)] of the cationic surfactant as the component (A) and the long-chain aliphatic alcohol having 12 to 24 carbon atoms as the component (B) is 1 / It is preferably 1 to 1/4. If the mass ratio [(A) / (B)] exceeds 1/1, it may not be possible to impart no entanglement of hair in wet hair and no looseness of hair after drying. On the other hand, if the mass ratio [(A) / (B)] is less than 1/4, in addition to the fact that the hair is not entangled in wet hair and the hair is not dry after drying. , Long-term storage stability may deteriorate.

<(C) Amphoteric surfactant>
The amphoteric surfactant of the component (C) is not particularly limited and may be appropriately selected depending on the intended purpose. Examples thereof include alkylbetaine activators, amide betaine activators, sulfobetaine activators, hydroxy Examples include sulfobetaine activators, amide sulfobetaine activators, phosphobetaine activators, imidazolinium betaine activators, aminopropionic acid activators, amino acid activators, and the like. Among these, alkylbetaine surfactants are particularly preferable.
Examples of the alkylbetaine surfactant include lauric acid amidopropyl betaine, lauryldimethylaminoacetic acid betaine, coconut oil fatty acid amidopropyl betaine, coconut oil fatty acid dimethylaminoacetic acid betaine, lauryl hydroxysulfobetaine, 2-alkyl-N- Examples thereof include carboxymethyl-N-hydroxyethyl imidazolinium betaine. These may be used individually by 1 type and may use 2 or more types together. Among these, amidopropyl betaine laurate improves bubbling and eliminates tangling during hair washing because bubbles spread to the hair, and also improves antiseptic power against Escherichia coli, staphylococci, and mold. This is particularly preferable.

The content of the amphoteric surfactant as the component (C) is 10% by mass to 30% by mass, and preferably 14% by mass to 24% by mass with respect to the total amount of the shampoo composition. When the content is less than 10% by mass, foaming of the main purpose as shampoo performance is lowered, so that foam does not flow in the hair, there is no entanglement of hair in wet hair, and there is no looseness of hair after drying. Is not sufficient, and the antiseptic power of Escherichia coli, staphylococci and fungi may be reduced. On the other hand, when the content exceeds 30% by mass, the dispersibility of the cationic surfactant as the component (A) and the long-chain aliphatic alcohol having 12 to 24 carbon atoms as the component (B) decreases, and the shampoo composition Since the uniformity of the product cannot be ensured, the increase in the viscosity of the preparation may not exhibit the effect of imparting no tangling of the hair in wet hair and no looseness of the hair after drying.

<(D) Glycerin>
The glycerin may be derived from a plant or synthesized.
The content of the glycerin is 8% by mass to 30% by mass, and more preferably 12% by mass to 25% by mass with respect to the total amount of the shampoo composition. If the content is less than 8% by mass, the effect of imparting dryness to the hair after drying is not sufficient, and the antiseptic power of Escherichia coli, staphylococci and fungi may be reduced in terms of antiseptic power. If it exceeds 30% by mass, it may cause the hair to become sticky and reduce the roughness.

The mass ratio [(D) / ((C) + (D))] of the component (C) and the component (D) is 0.30 to 0.70, and is 0.40 to 0.60. It is preferable from the viewpoints of no entanglement of hair in wet hair, no dryness of hair after drying, suppression of scalp scalp, long-term storage stability, and antiseptic properties against mold. When the mass ratio [(D) / ((C) + (D))] is less than 0.30, the moisturizing effect of the glycerin (D) component is not sufficient, so that there is no tangling of hair in wet hair. In addition, the effect of imparting dryness to the hair after drying may be reduced, and the effect of suppressing scuffing of the background may not be sufficient. When the mass ratio [(D) / ((C) + (D))] exceeds 0.70, the ratio of the glycerin of the component (D) is increased, resulting in a weight that is sticky to the hair, While the lack of smoothness decreases, the effect of suppressing scuffing of the background may be reduced. The mass ratio [(D) / ((C) + (D))] is obtained by rounding off the third decimal point.

<(E) Alkylamine Oxide>
In the shampoo composition of the present invention, by further containing the alkylamine oxide as the component (E), the effect of suppressing scuffing on the background and the antiseptic effect are dramatically improved.
Examples of the alkylamine oxide of the component (E) include decyl dimethylamine oxide, lauryl dimethylamine oxide, myristyl dimethylamine oxide, and the like. Among these, lauryl dimethylamine oxide is particularly preferable in terms of the effect of suppressing scuffing of the background.
The number of carbon atoms of the alkylamine oxide as the component (E) is preferably 8 to 18, and more preferably 10 to 14, from the viewpoint of the effect of reducing the color of the background.
The content of the alkylamine oxide as the component (E) is preferably 0.3% by mass to 5% by mass, and more preferably 0.3% by mass to 3% by mass with respect to the total amount of the shampoo composition. If the content is less than 0.3% by mass, the effect of suppressing scalp on the background may not be sufficient, and if it exceeds 5% by mass, an excessive amount of alkylamine oxide remains on the background. Kayumi may come out.

The mass ratio [(D) / (E)] between the component (D) and the component (E) is preferably 5 to 40, and from the viewpoints of the effect of suppressing blemishes of the background, antiseptic effect, and long-term storage stability, 6 ~ 36 is more preferred. When the mass ratio [(D) / (E)] is less than 5, the ratio of the alkylamine oxide of the component (E) is high with respect to the total amount of glycerin and alkylamine oxide which are moisturizers, so It may come out. On the other hand, when the mass ratio [(D) / (E)] exceeds 40, the ratio of the alkylamine oxide of the component (E) to the total amount of glycerin and alkylamine oxide as a moisturizing agent decreases, and the background The effect of suppressing kayaking may also be reduced.

-Other ingredients-
The shampoo composition of the present invention is widely used in general shampoo compositions in addition to the components (A) to (D), preferably (E), as long as the object of the present invention is not impaired. Various additive components can be blended as necessary. These components include: silicone compounds such as dimethylpolysiloxane, polyether-modified silicone, and amino-modified silicone; hydrocarbons such as liquid paraffin and squalane; esters such as isopropyl myristate; vegetable oils such as camellia oil, almond oil, jojoba oil Nonionic surfactants such as polyoxyethylene alkyl ether, glycerin fatty acid ester, sucrose fatty acid ester and polyglycerin fatty acid ester; gallic acid derivatives; amino acids such as glycine, serine and arginine; pyrrolidone carboxylic acid or salt, herbal medicine, Anti-inflammatory agents such as vitamins, dipotassium glycyrrhizinate and glycyrrhetinic acid; antidandruff agents such as piroctone olamine and zinc pyrithione; bactericides such as isopropylmethylphenol and triclosan; tar dyes, UV absorbers, acids Inhibitors, solvents such as ethanol, anionic polymers such as acrylic acid polymers, nonionic polymers such as vinylpyrrolidone polymers, amphoteric polymers such as diallyldimethylammonium chloride / acrylic acid, cationized cellulose, cationized guar gum, etc. Cationic polymers of the following: inorganic powders such as anhydrous silica and magnesia silica; organic powders such as nylon and polyethylene. These may be used individually by 1 type and may use 2 or more types together.

Examples of the fragrance and fragrance composition used in the shampoo composition of the present invention include the fragrance ingredients described in paragraph numbers [0021] to [0035] of JP-A No. 2003-300811, and further described in paragraph [0050]. Perfume solvents and the like. In the present invention, the “perfume composition” means a mixture comprising the above-described perfume ingredients, a solvent, a perfume stabilizer and the like.
The content of the fragrance solvent is preferably 0.1% by mass to 99% by mass, and more preferably 1% by mass to 50% by mass with respect to the total amount of the fragrance composition.
Examples of the fragrance stabilizer include dibutylhydroxytoluene, butylhydroxyanisole, vitamin E or a derivative thereof, a catechin compound, a flavonoid compound, a polyphenol compound, and the like. Among these, dibutylhydroxytoluene is particularly preferable.
The content of the fragrance stabilizer is preferably 0.0001% by mass to 10% by mass and more preferably 0.001% by mass to 5% by mass with respect to the total amount of the fragrance composition.
The content of the fragrance composition is preferably 0.005% by mass to 40% by mass and more preferably 0.01% by mass to 10% by mass with respect to the total amount of the shampoo composition.

The shampoo composition of the present invention is prepared by mixing and dissolving the component (C) and the component (D), preferably a water-soluble component containing the component (E) in a hot water bath at 80 ° C. The oil phase containing the component (A) and the component (B) is added to the aqueous phase and mixed uniformly. Then, it can prepare by adding a silicone emulsion and cooling to room temperature, further stirring. There is no restriction | limiting in particular as an apparatus used for the said stirring, According to the objective, it can select suitably, For example, a stirring bar, a stirring blade, etc. are mentioned.

-PH-
The pH of the shampoo composition is not particularly limited and may be appropriately selected depending on the intended purpose, but is preferably 5.0 to 6.0 at 25 ° C.
The pH can be measured, for example, at 25 ° C. using a pH meter (HM-30G, manufactured by Toa DKK Corporation) of the shampoo composition diluted 10 times with purified water.
The pH of the shampoo composition can be adjusted using a desired pH adjuster. The pH adjuster is not particularly limited and may be appropriately selected depending on the intended purpose. Examples thereof include citric acid, succinic acid, 2-amino-2-methyl-1-propanol, and monoethanolamine. .

-viscosity-
The viscosity of the shampoo composition of the present invention is not particularly limited and may be appropriately selected depending on the intended purpose, but is preferably 1 Pa · s to 30 Pa · s at 25 ° C.
The viscosity can be measured, for example, using a viscometer (manufactured by TOKIMEC, BM type viscometer, No. 4 rotor) at 30 rpm, 20 seconds, and 25 ° C.

-Applications-
The shampoo composition of the present invention prevents entanglement of hair damaged by repeated coloring, perm, and excessive dryer drying, eliminates `` passiness after drying '', and `` scalp scalp '' Since it has excellent antiseptic power even if it contains no preservatives (paraben, benzoic acid or its salt, etc.), it can be applied to, for example, skin cleansing shampoo, damage care shampoo, mild shampoo, rinse-in shampoo, etc. It can be used suitably.

Examples of the present invention will be described below, but the present invention is not limited to these examples.

(Examples 1 to 24 and Comparative Examples 1 to 8)
-Preparation of shampoo composition-
According to the composition shown in Table 1 (unit: mass%), shampoo compositions of Examples 1 to 24 and Comparative Examples 1 to 8 were prepared by a conventional method. Specifically, in a hot water bath at 80 ° C., the water-soluble component containing the component (C), the component (D), and the component (E) as necessary was mixed and dissolved to obtain an aqueous phase. The oil phase containing the component (A) and the component (B) was added to the aqueous phase and mixed uniformly. Thereafter, a silicone emulsion was added and further cooled to room temperature with stirring. The pH was adjusted using citric acid as a pH adjuster.
Each obtained shampoo composition was diluted 10 times with purified water, and pH was measured at 25 ° C. using a pH meter (HM-30G, manufactured by Toa DKK Corporation). The results are shown in Table 1.

<Sensory evaluation>
The sensory evaluation was performed as follows for “no entanglement of hair in wet hair”, “no looseness of hair after drying”, and “no scalp on the skin”. The results are shown in Table 1.
[Sensory evaluation method]
Women in their 30s and 40s who have performed chemical treatments such as coloring and perm within 3 months, entangled the hair at the time of shampooing, feels rustling of the hair after washing and drying with a hair dryer, and also feels the scalp of the skin 30 By name, each shampoo composition was used for 7 days and evaluated according to the following criteria.
〔Evaluation criteria〕
◎: 27 or more out of 30 respondents are good ◎ ~ ○: 24 ~ 26 out of 30 respondents are good ○: 15 ~ 23 out of 30 respondents are △: 5 to 14 out of 30 respondents answered good: less than 5 respondents said good. In the above evaluation criteria, “good” means “the hair in wet hair” for each evaluation item. It means “no entanglement”, “no hair dryness after drying”, and “no scalp on the surface”.

<Evaluation method of long-term storage stability>
About 40 mL of each shampoo composition was filled into a 50 mL glass vial, stored at 40 ° C. for 6 months, and the appearance of each shampoo composition was visually determined according to the following criteria. The results are shown in Table 1.
〔Evaluation criteria〕
◎: No change in appearance, no separation is observed ○: Appearance is partially non-uniform in color tone, but no separation is observed △: Very little separation is observed ×: Separation is recognized Be

<Evaluation of preservative power of shampoo composition>
As a test bacterium, Escherichia coli NBRC3972 and Staphylococcus aureus NBRC13276 were used. These were all obtained from the National Institute of Technology and Evaluation (NITE).
As the fungus, Paecilomyces variotii (derived from the environment) was used.
Each of these test bacteria was cultured in an optimum medium, and a bacterial suspension was prepared so as to be about 10 ⁸ to 10 ⁹ cells / mL.
0.2 mL of the bacterial suspension was added to 20 g of the evaluation sample and mixed well to prepare an evaluation sample solution, and then the bacteria were stored at 20 ° C. and the fungi were stored at 25 ° C. in the dark.
Next, after 1 day, 4 days, 7 days, 14 days, and 28 days after storage, 1 g of the evaluation sample solution is aseptically collected and placed in 9 mL of lecithin / polysorbate 80-added soybean / casein / digest liquid medium. Diluted and mixed. Take 1 mL and 0.1 mL of the solution obtained by dilution and mixing in petri dishes, and mix with bacteria in lecithin / polysorbate 80-added soybean / casein / digest agar and fungi in lecithin / polysorbate 80+ glucose / pepton agar. It was. Bacteria were cultured at 30 ° C. for 4 days, and fungi were cultured at 25 ° C. for 7 days, and the number of surviving bacteria in the sample was measured.
The determination was made according to the following criteria based on the number of days until the added bacteria or fungi were below the detection limit (10 cells / g or less). The results are shown in Table 1.
〔Evaluation criteria〕
A: Less than detection limit (less than 10 cells / g) within 7 days, and killing of added bacteria was observed. O: Less than detection limit (less than 10 cells / g) within 8-14 days, added bacteria. △: More than 14 days to fall below the detection limit (10 / g or less) ×: No added bacteria killed

Below, the specific Example which applied the shampoo composition of this invention to actual shampoo is shown. In addition, the shampoo of the following Example was prepared according to each composition.
The following Examples 25 to 27 were evaluated in the same manner as in Examples 1 to 24, and all showed excellent effects.

(Example 25)
-shampoo-
・ Behenyltrimethylammonium chloride 2.5% by mass
・ Behenyl alcohol 6% by mass
・ 14% by mass of amidopropyl betaine laurate
・ Glycerin 15% by mass
・ Lauryldimethylamine oxide 1% by mass
・ Polyoxyethylene lauryl sulfate Na 1% by mass
・ Polyoxyethylene behenyl ether 0.2% by mass
・ Smectite 0.3% by mass
・ Highly polymerized amino-modified silicone emulsion 3% by mass
・ Amino-modified silicone emulsion 0.5% by mass
・ Hydroxypropyl methylcellulose 0.1% by mass
・ Hydroxyethane diphosphonic acid 0.1% by mass
・ Polyoxyethylene cetostearyl hydroxymyrstyrene ether 0.35% by mass
-Fragrance B 0.5% by mass
・ Citric acid appropriate amount ・ Purified water balance
Total 100% by mass
Mass ratio [(D) / ((C) + (D))] = 0.52
Mass ratio [(D) / (E)] = 15
pH 5.3 (25 ° C.), viscosity 8.0 Pa · s (25 ° C.)
<Evaluation results>
No entanglement in wet hair: ◎
No dry hair after drying: ◎
Nasty Kayumi: ◎
Long-term storage stability: ○
Antiseptic effect (staphylococci): ◎
Antiseptic effect (E. coli): ◎
Antiseptic effect (mold): ◎

(Example 26)
-shampoo-
・ Behenyltrimethylammonium chloride 2.5% by mass
・ Behenyl alcohol 6% by mass
・ 10% by weight of lauric acid amidopropyl betaine
-Palm oil fatty acid amidopropyl betaine 5% by mass
・ Glycerin 15% by mass
・ Lauryldimethylamine oxide 2% by mass
・ Polyoxyethylene lauryl sulfate Na 1% by mass
・ Polyoxyethylene behenyl ether 0.2% by mass
・ Smectite 0.3% by mass
・ Highly polymerized amino-modified silicone emulsion 2% by mass
・ Dimethyl silicone emulsion 1% by mass
・ Hydroxypropyl methylcellulose 0.1% by mass
・ Hydroxyethane diphosphonic acid 0.1% by mass
・ Polyoxyethylene cetostearyl hydroxymyrstyrene ether 0.8% by mass
-Fragrance C 0.5% by mass
・ Citric acid appropriate amount ・Purified water balance
Total 100% by mass
Mass ratio [(D) / ((C) + (D))] = 0.50
Mass ratio [(D) / (E)] = 7.5
pH 5.3 (25 ° C.), viscosity 20 Pa · s (25 ° C.)
<Evaluation results>
No entanglement in wet hair: ◎
No dry hair after drying: ◎
Nasty Kayumi: ◎
Long-term storage stability: ○
Antiseptic effect (staphylococci): ◎
Antiseptic effect (E. coli): ◎
Antiseptic effect (mold): ◎

(Example 27)
-shampoo-
・ Behenyltrimethylammonium chloride 2.5% by mass
・ Behenyl alcohol 6% by mass
・ 15% by mass of amidopropyl betaine laurate
・ Glycerin 12% by mass
・ Lauryldimethylamine oxide 1% by mass
・ Polyoxyethylene lauryl sulfate Na 2% by mass
・ Polyoxyethylene behenyl ether 0.2% by mass
・ Smectite 0.3% by mass
・ Highly polymerized amino-modified silicone emulsion 5% by mass
・ Amino-modified silicone emulsion 0.5% by mass
・ Hydroxypropyl methylcellulose 0.05% by mass
・ Hydroxyethane diphosphonic acid 0.1% by mass
・ Polyoxyethylene cetostearyl hydroxymyrstyrene ether 0.2% by mass
-Fragrance D 0.5% by mass
・ Citric acid appropriate amount ・Purified water balance
Total 100% by mass
Mass ratio [(D) / ((C) + (D))] = 0.44
Mass ratio [(D) / (E)] = 12
pH 5.3 (25 ° C.), viscosity 5.0 Pa · s (25 ° C.)
<Evaluation results>
No entanglement in wet hair: ◎
No dry hair after drying: ◎
Nasty Kayumi: ◎
Long-term storage stability: ○
Antiseptic effect (staphylococci): ◎
Antiseptic effect (E. coli): ◎
Antiseptic effect (mold): ◎

The specific contents of the materials used in Examples 1 to 27 and Comparative Examples 1 to 8 are as follows.

(*) Hardened rapeseed oil alcohol consists of stearyl alcohol (carbon number 18), aralkyl alcohol (carbon number 20), and behenyl alcohol (carbon number 22).

The shampoo composition of the present invention prevents entanglement of hair damaged by repeated coloring, permanents and excessive dryer drying, eliminates `` passiness after drying '', and `` skin scalp '' Because it has excellent antiseptic power even without preservatives (parabens, benzoic acid or its salts, etc.), it can be used in, for example, skin cleansing shampoos, damage care shampoos, mild shampoos, and rinse-in shampoos. It can be used suitably.

Claims

(A) a cationic surfactant, (B) a long chain aliphatic alcohol having 12 to 24 carbon atoms, (C) an amphoteric surfactant of 10% by mass to 30% by mass, and (D) glycerin of 8% by mass to 30% by mass. Containing
A shampoo composition, wherein a mass ratio [(D) / ((C) + (D))] of the component (C) and the component (D) is 0.30 to 0.70.
Further, (E) containing 0.3% by mass to 5% by mass of alkylamine oxide,
The shampoo composition according to claim 1, wherein a mass ratio [(D) / (E)] of the component (D) and the component (E) is 5 to 40.