JP2008024686A - Hair cosmetic composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rinse-off type hair cosmetic composition using tea leaf components having deodorant effect, wherein the deodorant effect of tea leaves is kept after rinsing off. <P>SOLUTION: A hair cosmetic composition keeping deodorant effects of tea leaf components after rinsing off is obtained by containing (a) tea leaf components, (b) acid components and (c) silicone components at the same tine. As the (b) acid components, at least one selected from organic acids and salts thereof is used, and, as the (c) silicone components, at least one of specific silicones is used. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a hair cosmetic composition having a deodorizing effect, and more specifically, a rinse-off type hair cosmetic composition having a characteristic that a good deodorizing effect continues even after rinsing. The present invention relates to a hair cosmetic composition.

  In recent years, the need for deodorization and deodorization such as body odor and sweat odor has increased due to an increase in cleanliness awareness. Body odor and sweat odor include cough odor and foot odor. In addition, scalp scalp odor can be mentioned as an odor that is worrisome after sweating or when frequent bathing is not possible due to injury or illness. Anti-perspirants and deodorant sprays that are not washed away (leave-on) type products are widely used for scents and foot odors, but in the case of scalp and head odors, leave-on for deodorization and deodorization Type products are not common, and rinse-off type hair cosmetics such as shampoos and rinses are used to remove scalp and hair odors. However, in the rainy season and summer, when the sweat is easy, a slight sweat odor from the scalp and hair is worrisome in the evening, and if you cannot wash your hair frequently due to injury or illness, several days have passed since the hair was washed. You may be worried about the smell of the scalp and hair later. Therefore, in addition to the odor removal effect at the time of shampooing, the persistence of the deodorizing effect has been demanded.

  Conventionally, as a method for making it difficult to feel body odor and sweat odor, there is a technique of masking with a fragrance, but for recent cosmetics, there is a tendency to prefer a slightly fragrant or unscented odor. For this reason, in these recent cosmetics, the effect of masking with a fragrance cannot be obtained.

  On the other hand, utilization of tea components has been proposed as having a strong aroma and an effect of eliminating body odor. For example, cosmetics containing an extract of oolong tea (Patent Document 1), bathing agents containing a green tea dry distillation extract (Patent Document 2), cosmetics containing a tea extract (Patent Document 3), green tea, black tea, oolong tea, mate tea, etc. Baby powder containing Japanese tea extract (Patent Document 4) and deodorant containing patent Fuji tea extract (Patent Document 5) have been proposed.

JP-A-61-137809 Japanese Patent Laid-Open No. 03-157325 JP 05-269187 A Japanese Patent Laid-Open No. 08-127515 JP 2002-159666 A

  In the conventional various products, the tea component used as an active ingredient has a high deodorizing effect at the time of use, but since it contains a lot of water-soluble components, it is easily removed by rinsing off (rinse off). End up. Therefore, the only use of conventional cosmetics containing tea components is to remove body odor by washing away even leave-on type cosmetics or rinse-off type cosmetics. That is, when a rinse-off type hair cosmetic containing a tea component is considered, there is a problem in that the conventionally known composition cannot maintain the deodorizing effect.

  The present invention has been made in view of the above-described conventional circumstances, and its problem is a rinse-off type hair cosmetic composition using a tea leaf component having a deodorizing effect, and the tea leaf component can be obtained even after rinsing. An object of the present invention is to provide a hair cosmetic composition that lasts a deodorizing effect.

  In order to solve the above-mentioned problems, the present inventors have conducted intensive studies, experiments, and examinations. As a result, (a) a tea leaf component, (b) an acid component, and (c) a silicone component are simultaneously contained. The present inventors have found that a hair cosmetic composition in which the deodorizing effect of the tea leaf component persists even after rinsing can be obtained.

  The (b) acid component is preferably at least one selected from organic acids and salts thereof, and the (c) silicone component is at least a silicone represented by the following formula (1) or (2): One is preferred.

［式（１）中、ｎは１０００以上の整数を表す。］

[In formula (1), n represents an integer of 1000 or more. ]

［式（２）中、Ｒ¹は、同一であっても異なっていてもよく、ヒドロキシル基または炭素数１〜２８のアルキル基であり、Ｒ²は、同一であっても異なっていてもよく、ヒドロキシル基、メチル基、−（ＣＨ₂）_a−Ｏ−（Ｃ₂Ｈ₄Ｏ）_b−（Ｃ₃Ｈ₆Ｏ）_c−Ａ、Ｒ³Ｚのいずれかであり、ｍは１〜２０００の整数、ｎは１〜１０００の整数を表し、Ｒ¹およびＲ²が同時にメチル基である場合を除く。前記−（ＣＨ₂）_a−Ｏ−（Ｃ₂Ｈ₄Ｏ）_b−（Ｃ₃Ｈ₆Ｏ）_c−Ａにおいて、Ａは、水素原子または炭素数１〜１２のアルキル基を示し、ａは１〜５の数、ｂおよびｃは０〜５０の数を示し、ｂ＋ｃ≧１である。また、前記Ｒ³Ｚにおいて、Ｒ³は、炭素数が３〜６である２価の炭化水素基を表し、Ｚは、−ＮＲ⁴（ＣＨ₂）_dＮＲ⁵ ₂、および−ＮＲ⁴（ＣＨ₂）_dＮ⁺Ｒ⁵ ₃Ｘ^-、および−ＮＲ⁴（ＣＨ₂）_dＮ⁺Ｒ⁵ ₂Ｒ⁶の各群より選ばれる１価の基を表し、前記Ｒ⁴は水素原子または炭素数が１〜４のアルキル基を示し、前記Ｒ⁵は炭素数が１〜４の炭化水素基を示し、前記Ｒ⁶はＲ⁷ＣＯＯＨ（ここで、Ｒ⁷は炭素数が１〜６である２価の炭化水素基を表す）を示し、前記Ｘはハロゲン原子、または炭素数１〜４のアルキル硫酸を示し、ｄは２〜６の整数を表す。］

[In Formula (2), R ¹ may be the same or different, and is a hydroxyl group or an alkyl group having 1 to 28 carbon atoms, and R ² may be the same or different. , Hydroxyl group, methyl group, — (CH ₂ ) _a —O— (C ₂ H ₄ O) _b — (C ₃ H ₆ O) _c —A, R ³ Z, and m is 1 to 2000. , N represents an integer of 1 to 1000, except when R ¹ and R ² are simultaneously methyl groups. The _{- (CH 2) a -O- (} C 2 H 4 O) b - In _{(C 3 H 6 O) c} -A, A is a hydrogen atom or an alkyl group having 1 to 12 carbon atoms, a is Numbers 1 to 5, b and c represent numbers 0 to 50, and b + c ≧ 1. In R ³ Z, R ³ represents a divalent hydrocarbon group having 3 to 6 carbon atoms, and Z represents —NR ⁴ (CH ₂ ) _d NR ⁵ ₂ and —NR ⁴ (CH ₂ ) _d N ⁺ R ⁵ ₃ X ⁻ , and —NR ⁴ (CH ₂ ) _d N ⁺ R ⁵ ₂ R ⁶ represents a monovalent group selected from each group, and R ⁴ represents a hydrogen atom or a carbon number. 1 to 4 alkyl group, R ⁵ represents a hydrocarbon group having 1 to 4 carbon atoms, R ⁶ represents R ⁷ COOH (wherein R ⁷ is a divalent valence having 1 to 6 carbon atoms). X represents a halogen atom or an alkyl sulfuric acid having 1 to 4 carbon atoms, and d represents an integer of 2 to 6. ]

  The present invention has been made based on such knowledge. That is, the hair cosmetic composition according to the present invention comprises (a) a tea leaf component, (b) an acid component, and (c) a silicone component.

  In the hair cosmetic composition having the above structure, it is preferable that the acid component (b) is at least one selected from organic acids and salts thereof. The (c) silicone component is preferably at least one of the silicones represented by the formula (1) or (2).

  The hair cosmetic composition of the present invention is not limited to the rinse-off type application, but is particularly useful when used as a rinse-off type. As a specific dosage form of the rinse-off type hair cosmetic composition, a hair treatment agent, a shampoo agent, and a hair rinse agent are suitable.

  According to the present invention, it is possible to provide a hair cosmetic composition that is fragrance-free or slightly fragrant and has a deodorizing effect even when used for a rinse-off application.

((A) tea leaf component)
As the tea leaf component of the component (a) used in the present invention, any tea leaf component having a deodorizing effect may be used, and examples thereof include green tea, oolong tea, and tea tea leaves. As a method for obtaining the components contained in these tea leaves, a method (extraction method) in which extraction is performed by a conventional method using one kind or any mixed solution of polar solvents such as water, ethanol, propylene glycol, butylene glycol, The method (dry distillation method) etc. which heat under reduced pressure conditions and obtain the vaporized component by cooling can be mentioned. In the case of further purification, methods such as recrystallization from a poor solvent, column fractionation, and ultrafiltration can be used. Among these, components of green tea and oolong tea are preferable, and it is particularly preferable to use a green tea water extract obtained by immersing green tea leaves in water or hot water and a green tea dry distillation solution.

  In the hair cosmetic composition of the present invention, the blending amount of these (a) tea leaf components is selected in the range of 0.00001 to 1%, preferably 0.0001 to 0.1%, based on the total amount of the composition. If it is less than 0.00001%, a sufficient deodorizing and deodorizing effect cannot be obtained, and if it exceeds 1%, the composition may be colored.

((B) Acid component)
As described above, the acid component (b) used in the present invention is preferably at least one selected from an organic acid and a salt thereof, and the organic acid referred to here includes a carboxyl group, a sulfate group, a sulfo group, and a phosphorus group. An organic compound containing at least one of acid groups and the like and showing acidity when dissolved in water. Among these, an organic acid having at least one carboxyl group is preferable, and examples thereof include lactic acid, citric acid, malic acid, tartaric acid, glycolic acid, succinic acid, benzoic acid and the like. Furthermore, as the salt thereof, any salt that can be used as an external preparation may be used. For example, alkali metal salts such as sodium and potassium, alkaline earth metal salts such as calcium and magnesium, transition metal salts such as iron and zinc, Examples thereof include ammonium salts and amine salts. Among these, C2-6 organic acids are preferable, and citric acid, malic acid, and glycolic acid are particularly preferable.

  By using the (b) acid component in combination with the (a) tea leaf component, it is possible to suppress the polymerization of generally unstable tea leaf components and maintain a state of being easily penetrated into the hair, It is considered that the adsorptivity is improved, and as a result, the tea leaf component is suppressed from being washed away at the time of rinsing.

  In the hair cosmetic composition of the present invention, the blending amount of the (b) acid component is selected in the range of 0.01 to 20%, preferably 0.1 to 5% with respect to the total amount of the composition. If it is less than 0.01%, a sufficient deodorizing effect after rinsing cannot be obtained, and if it exceeds 20%, precipitation at a low temperature may occur.

  Moreover, the hair cosmetic composition of this invention can adjust pH value using (b) acid component. In order to obtain sufficient detergency and conditioning properties of the rinse-off type hair cosmetic composition, the pH of the composition at 25 ° C is preferably 2 to 7, and particularly preferably 3 to 6. The pH in the hair cosmetic composition is determined by inserting the pH meter electrode directly into the composition and reading the pH after stabilization using the method specified in the General Test Method of Cosmetic Raw Material Standard (2nd edition). Can be measured.

((C) silicone component)
The silicone represented by the general formula (1) of the component (c) used in the present invention is generally referred to as highly polymerized methylpolysiloxane, and is used singly or in appropriate combination of two or more. Can do.

  In the general formula (1), n is a number average degree of polymerization, which is 1,000 or more, preferably 1,500 or more. When the number average degree of polymerization is less than 1,000, a sufficient effect cannot be obtained in terms of durability of the deodorizing effect. Moreover, when it exceeds 5,000, 5,000 or less is preferable from the point that handling property worsens.

  The number average degree of polymerization (n) can be calculated from the number average molecular weight measured by GPC. Here, the number average molecular weight is the average molecular weight Mn given by Mn = ΣMiNi / ΣNi when Ni molecules having a molecular weight Mi exist, and the measurement methods include osmotic pressure method, boiling point increase method, freezing point, Examples thereof include a descent method and a GPC (Gel Permeation Chromatography) method. The GPC method measures molecular weight distribution, but converts the molecular weight into a standard substance such as polystyrene, low angle light scattering (LALLS), and multi-angle light scattering (MALLS). There are GPC-LALLS method and GPC-MALLS method which are measured by Light Scattering). GPC is also called SEC (Size Exclusion Chromatography).

  The silicone represented by the general formula (2) of the component (c) used in the present invention includes dimethiconol (dihydroxypolydimethylsiloxane), polyether-modified silicone, amino-modified silicone, cation-modified silicone, and betaine-modified silicone. Etc. These silicones are used in a solubilized, emulsified and dispersed state.

  Among the silicones of component (c), a highly polymerized methylpolysiloxane represented by general formula (1) (wherein n is an integer of 1,000 or more) is preferable.

  In the hair cosmetic composition of the present invention, the silicone of component (c) is selected in the range of 0.1 to 30%, preferably 0.3 to 5%, based on the total amount of the composition. If it is less than 0.1%, a sufficient deodorizing effect after rinsing cannot be obtained, and if it exceeds 30%, there is a possibility that a feeling of stickiness or the like will be lowered.

(Other ingredients)
In addition to the above active ingredients, the hair cosmetic composition of the present invention includes an anionic surfactant, a cationic surfactant, and a nonionic interface as long as the effects of the present invention are not impaired depending on the purpose. Activators, amphoteric surfactants, semipolar surfactants, polymers, polyhydric alcohols, higher alcohols, silicones other than component (c), lower alcohols, long chain fatty acids, ester oils, thickeners, fragrances, Ultraviolet absorbers, fine particle powders, plant extracts, proteins and derivatives thereof, amino acids, preservatives, colorants, pH adjusters, antioxidants, chelating agents, purified water and the like can be blended.

  When blending a fragrance in the hair cosmetic composition of the present invention, the fragrance used is the same as the fragrance and fragrance composition described in JP-A-2003-95895. It is suitable to mix | blend so that a fragrance | flavor composition may be 0.00001-50 mass% with respect to cosmetics composition whole quantity, More preferably, 0.0001-30 mass% is mix | blended.

  Practical dosage forms prepared from the rinse-off type hair cosmetic composition of the present invention include hair treatment agents such as shampoos, rinses, treatments to be washed away, and lotions to be washed away.

EXAMPLES Hereinafter, although an Example and a comparative example are given and this invention is demonstrated more concretely, this invention is not restrict | limited to the following Example.
In addition, the compounding quantity of the component shown in the Example and the comparative example is the mass% with respect to the whole composition. The pH was adjusted at 25 ° C. In addition, “appropriate amount” in the table means an amount necessary for adjusting pH to a target value (set value). In the examples and comparative examples, the component equivalent amount (AI) is described.

(Examples 1-6 and Comparative Examples 1-4)
A shampoo composition was prepared according to the formulation shown in Tables 1 and 2 below. Each composition sample of each example and comparative example was prepared by stirring and mixing each component at room temperature. The raw materials used in the following examples and comparative examples are listed in (Table 4) to (Table 7) described later.

  The deodorizing effect of each shampoo composition (hair cosmetic composition) of each of the above Examples 1 to 6 and Comparative Examples 1 to 4 was evaluated by the following method.

(Odor control method)
A hair bundle having a length of 10 cm and a mass of 1 g was immersed in a model coloring solution represented by the following (Composition 1) of 10 times the amount at room temperature for 30 minutes. Thereafter, the hair bundles for evaluation were washed thoroughly with tap water and dried.

  After wetting the hair bundle for evaluation with tap water, 0.1 g of each sample composition (shampoo composition) of Examples 1 to 6 and Comparative Examples 1 to 4 is applied, and the whole hair bundle is applied with fingers. After 5 minutes, it was rinsed with tap water for 30 seconds, and then naturally dried to obtain a treated hair bundle. Each shampoo composition was stored for 2 months at 25 ° C. after preparation.

  A petri dish containing 10 mL of 5% ammonia water was placed on the bottom of an acrylic box with an internal volume of 38 L, and each of the treated hair bundles was hung in the box and allowed to stand in a temperature-controlled room at 25 ° C. for 30 minutes and 4 hours. . Thereafter, the hair bundle was taken out from the acrylic box and left in a constant temperature room for 10 minutes. Thereafter, 10 evaluators quickly smelled the hair bundle and evaluated the presence or absence of ammonia odor.

The above evaluation was made in four stages according to the following criteria (++ to + were judged to be good). The evaluation results for the shampoo compositions of Examples 1 to 6 and Comparative Examples 1 to 4 are shown in Tables 1 and 2 above.
++: When the number of evaluators who felt ammonia odor is 1 or less +: When the number of evaluators who felt ammonia odor is 2 or 3 ±: The number of evaluators who felt ammonia odor 4- In case of 7 people: When the number of evaluators who felt ammonia smell is 8 or more

  As is clear from Table 1 and Table 2, it was confirmed that the shampoo compositions of Examples 1 to 6 (deodorant composition of the present invention) exhibited a good deodorization effect.

(Example 7)
A hair rinse composition having the following composition was prepared.

(Method for preparing hair rinse composition of Example 7)
While the component (I) was heated to 70 ° C. and stirred well, the mixed solution of (II) that was also heated to 70 ° C. was added with stirring. The mixed solution was cooled to 45 ° C. with stirring, and the component (III) was added to obtain a hair rinse agent. This composition had an average emulsion particle size of 3 μm and a viscosity at 25 ° C. of 3.0 Pa · s as a result of measurement with a BM viscometer (No. 4 rotor, 30 rpm).

(Example 8)
A rinse-off hair treatment composition having the following composition was prepared.

(Preparation method of hair treatment composition of Example 8)
While the component (I) was heated to 80 ° C. and stirred well, the mixed solution of (II) that was also heated to 80 ° C. was added with stirring. The mixed solution was cooled to 45 ° C. with stirring, and the component (III) was added to obtain a hair rinse agent. The composition had an emulsified average particle diameter of 3 μm and a viscosity at 25 ° C. of 6.5 Pa · s as a result of measurement with a BM viscometer (No. 4 rotor, 30 rpm).

Example 9
A shampoo composition having the following composition was prepared.

(Method for preparing shampoo composition of Example 9)
The ethylene glycol distearate, sodium POE lauryl ether sulfate and POE hydrogenated castor oil were mixed and dissolved at 80 ° C., and this was added to purified water at 60 ° C. with stirring. After cooling this to 40 degreeC, the remaining component was stirred and mixed and the shampoo composition was prepared.

(Example 10)
A shampoo composition having the following composition was prepared.

(Method for preparing shampoo composition of Example 10)
The above components were mixed with stirring to prepare a shampoo composition.

(Example 11)
A shampoo composition having the following composition was prepared.

(Method for preparing shampoo composition of Example 11)
The above components were mixed with stirring to prepare a shampoo composition.

Example 12
A hair rinse agent having the following composition was prepared.

(Preparation method of hair rinse agent of Example 12)
While the component (I) was heated to 70 ° C. and stirred well, the mixed solution of (II) that was also heated to 70 ° C. was added with stirring. The mixed solution was cooled to 50 ° C. with stirring, and the component (III) was added to obtain a hair rinse agent. This composition had an emulsion average particle size of 3 μm and a viscosity at 25 ° C. of 6 Pa · s as a result of measurement with a BM viscometer (No. 4 rotor, 30 rpm).

  The deodorizing effect of each hair cosmetic composition of Examples 7 to 12 was evaluated by the same method as the deodorizing evaluation method performed for Examples 1 to 6 and Comparative Examples 1 to 4. As a result, as shown in Table 3, the deodorizing effects of the hair cosmetic compositions of Examples 7 to 12 were all good.

  The list of raw materials used in the above Examples and Comparative Examples is shown in the following (Table 4) to (Table 7).

  As described above, the hair cosmetic composition according to the present invention is useful for hair cosmetics in various dosage forms that require the deodorizing effect of hair, and is particularly suitably used for various rinse-off type hair cosmetics. be able to.

Claims (4)

  A hair cosmetic composition comprising (a) a tea leaf component, (b) an acid component, and (c) a silicone component.   The hair cosmetic composition according to claim 1, wherein the acid component (b) is at least one selected from organic acids and salts thereof. The (c) silicone component is represented by the following formula (1) or (2):

[In formula (1), n represents an integer of 1000 or more. ]

[In Formula (2), R ¹ may be the same or different, and is a hydroxyl group or an alkyl group having 1 to 28 carbon atoms, and R ² may be the same or different. , Hydroxyl group, methyl group, — (CH ₂ ) _a —O— (C ₂ H ₄ O) _b — (C ₃ H ₆ O) _c —A, R ³ Z, and m is 1 to 2000. , N represents an integer of 1 to 1000, except when R ¹ and R ² are simultaneously methyl groups. The _{- (CH 2) a -O- (} C 2 H 4 O) b - In _{(C 3 H 6 O) c} -A, A is a hydrogen atom or an alkyl group having 1 to 12 carbon atoms, a is Numbers 1 to 5, b and c represent numbers 0 to 50, and b + c ≧ 1. In R ³ Z, R ³ represents a divalent hydrocarbon group having 3 to 6 carbon atoms, and Z represents —NR ⁴ (CH ₂ ) _d NR ⁵ ₂ and —NR ⁴ (CH ₂ ) _d N ⁺ R ⁵ ₃ X ⁻ , and —NR ⁴ (CH ₂ ) _d N ⁺ R ⁵ ₂ R ⁶ represents a monovalent group selected from each group, and R ⁴ represents a hydrogen atom or a carbon number. 1 to 4 alkyl group, R ⁵ represents a hydrocarbon group having 1 to 4 carbon atoms, R ⁶ represents R ⁷ COOH (wherein R ⁷ is a divalent valence having 1 to 6 carbon atoms). X represents a halogen atom or an alkyl sulfuric acid having 1 to 4 carbon atoms, and d represents an integer of 2 to 6. ]
The hair cosmetic composition according to claim 1, wherein the hair cosmetic composition is at least one of silicones represented by the formula:   The hair cosmetic composition according to any one of claims 1 to 3, which is a rinse-off type.