TW201408327A - Hair cosmetic composition - Google Patents

Abstract

Provided is a hair cosmetic that feels familiar when applied and appears smooth when rinsed, is not sticky after drying, slides well and smoothly, and imparts suppleness and tidiness. The present invention is a hair cosmetic that contains: (A) a vesicle structure in which the continuous phase is an aqueous phase and which has a mean grain size of 5 to 50 μm, comprising (A1) a C14-24 linear or branched fatty acid, (A2) a tertiary amine compound, and (A3) a C1-8 organic acid; (B) a cationic surfactant; (C) an aromatic alcohol; (D) a C1-10 organic acid; and water.

Description

Hair cosmetic

The present invention relates to a hair cosmetic comprising a vesicle structure.

In recent years, the use of perm, hair dye, bleaching, and the like has become widespread, and on the other hand, damage of hair caused by such chemical treatment has also become a problem. In order to reduce the damage of hair and improve the feeling of hair after shampooing, various hair cosmetics such as moisturizing essence, conditioner, and repairing agent have been used.

As a method for alleviating the damage of such hair, first, various components such as an oil component or an active agent can be used. For example, Patent Document 1 discloses a hair cosmetic which is capable of stably blending long-chain alcohols, oils, and the like, and which is excellent in effects such as flexibility and smoothness upon wetting, and contains a specific tertiary amine and a linear chain. Or branched fatty acids, inorganic acids or organic acids. Further, Patent Document 2 discloses a hair cosmetic which repairs or suppresses damage caused by chemical treatment, drying by a hair dryer, hair damage caused by daily hair care actions, fatigue fracture, and self-wetting. It imparts a good softness and flexibility to the treatment stage of the hair after drying, and it contains a specific branched chain fatty acid or a salt thereof, a specific tertiary amine or a salt thereof, and a specific aromatic alcohol as needed. Further, Patent Document 3 discloses that a hair cosmetic composition in which an α-hydroxymonocarboxylic acid or a salt thereof and a specific aromatic alcohol are combined can impart a sustained softness to the hair, and in particular, keep the harder hair softer. The effect is excellent in the uniformity of the hair.

On the other hand, as a method of promoting penetration of an effective substance into hair, Patent Document 4 There is disclosed a hair conditioner composition which incorporates cholesterol in a repairing composition comprising a basic amino acid and a fatty acid and a multi-layered vesicle dispersion stabilized by a nonionic active agent.

Further, Patent Document 5 discloses a hair cosmetic which is formed by combining a specific branched fatty acid with a specific tertiary amine and a specific organic acid to form a vesicle and used for a hair cosmetic, thereby reducing a branched fatty acid. Amount, but softness, smoothness, moisturization, and flexibility are also improved.

Prior technical literature

Patent literature

Patent Document 1: Japanese Patent Laid-Open Publication No. 2002-114648

Patent Document 2: Japanese Patent Laid-Open Publication No. 2008-297218

Patent Document 3: Japanese Patent Laid-Open No. 06-172131

Patent Document 4: Japanese Patent Laid-Open Publication No. 2002-516831

Patent Document 5: International Publication No. 2011/007525

The present invention relates to a hair cosmetic containing the components (A), (B), (C), (D) and water shown below.

(A) The continuous phase is an aqueous phase, and comprises (A1) a linear or branched fatty acid having 14 or more and 24 or less carbon atoms, (A2) a tertiary amine compound, and (A3) an organic acid having 1 or more carbon atoms and 8 or less carbon atoms And a cystic structure having an average particle diameter of 5 μm or more and 50 μm or less; (B) a cationic surfactant; (C) an aromatic alcohol; and (D) an organic acid having 1 or more and 10 or less carbon atoms.

Patent Documents 1 and 2 disclose hair cosmetics in which a specific tertiary amine, a linear or branched fatty acid is combined, but only when mixed with a hair cosmetic, the smoothness during rinsing and the sticky feeling after drying The suppression is not sufficient. Moreover, the feeling of touch (fusion feeling) at the time of use of the patent document 3, or the smoothness of the hair after drying is inadequate.

Further, in Patent Document 4, cholesterol is mixed as an essential component to form a multilayer vesicle (vesicle structure). However, even if a component of a usual curing agent is used, smoothness can be imparted during rinsing, and slipperiness can be suppressed. It is insufficient in the viewpoint of imparting smoothness after drying and suppressing stickiness. Further, in Patent Document 5, when it is formulated in a hair cosmetic, it is insufficient in terms of the feeling of fusion at the time of application, the uniformity after drying, and the flexibility.

The present invention relates to a hair cosmetic which has a fusion feeling upon application, exhibits smoothness upon rinsing, is not sticky after drying, has good smoothness and smoothness, and imparts softness and uniformity.

The present inventors have found that a hair cosmetic containing a specific size of a vesicle, a cationic surfactant, an aromatic alcohol, an organic acid, and water containing a linear or branched fatty acid, a tertiary amine compound, and an organic acid can be applied. It has a good blend of time, a smooth feeling when it is rinsed, and a softness and tidyness after drying, and a hair cosmetic which has no sticky feeling and smoothness.

According to the hair cosmetic of the present invention, the hair is well fused at the time of application, exhibits a smooth feeling during rinsing, and can be soft and tidy after drying, and has no sticky feeling and smoothness.

The hair cosmetic of the present invention comprises the following components (A), (B), (C), (D) and water.

(A) The continuous phase is an aqueous phase, and comprises (A1) a linear or branched fatty acid having 14 or more and 24 or less carbon atoms, (A2) a tertiary amine compound, and (A3) an organic acid having 1 or more carbon atoms and 8 or less carbon atoms And a vesicle structure having an average particle diameter of 5 μm or more and 50 μm or less

(B) Cationic surfactant

(C) aromatic alcohol

(D) Organic acids having a carbon number of 1 or more and 10 or less

Each component will be specifically described below.

The component (A) vesicle structure system used in the present invention is formed in a state in which a multilamellar Vesicle (so-called onion vesicle) containing a plurality of bilayer membranes is dispersed in water, and the continuous phase contains an aqueous phase. By. In the present invention, the term "vesicle" refers to a vesicle having a hollow or aqueous phase as the inner layer, and the multi-layered flaky vesicle formed therein also includes a structure having a part or all of the inner layer as an oil phase. . That is, in the present invention, the "vesicle" also contains a plurality of lamellar vesicles.

The shape of the vesicle structure of the component (A) is preferably granular, and various shapes such as a spherical shape, an elliptical shape, a cylindrical shape, a disk shape, and an amorphous shape can be employed. The lower limit of the average particle diameter of the component (A) vesicle structure is 5 μm or more, preferably 7 μm or more, from the viewpoint of further improving the fusion feeling when applied to the hair. Further, from the same viewpoint, the upper limit is 50 μm or less, preferably 30 μm or less, and more preferably 20 μm or less.

Here, the average particle diameter can be measured by the following manner: a particle size distribution measuring apparatus used in the measurement of the volume concentration of the vesicle (e.g., Beckman Coulter Multisizer ^TM 4 Co. of producing or manufacturing the Sysmex CDA-1000X Co. Etc., or a laser diffraction type particle size distribution measuring device (for example, SALD2100 manufactured by Shimadzu Corporation or LA-920 manufactured by Horiba, Ltd.), and measured ray irradiation to the vesicle moving in the circulation mode The intensity distribution of the scattered light obtained by the light emission is measured by the volume distribution obtained by the conversion from the intensity distribution. The measurement is preferably carried out in a room temperature range (15 ° C or more and 30 ° C or less).

The vesicle structure of the component (A) contains (A1) a linear or branched fatty acid having 14 or more and 24 or less carbon atoms, (A2) a tertiary amine compound, and (A3) an organic acid having 1 or more and 8 or less carbon atoms.

(A1) The linear or branched fatty acid having 14 or more carbon atoms and 24 or less may be at least one of a linear fatty acid or a branched fatty acid, but from the viewpoint of forming a vesicle, It is preferred to use a linear fatty acid alone or a combination of a linear fatty acid and a branched fatty acid. Further, (A1) a linear or branched fatty acid having 14 or more carbon atoms and 24 or less carbon atoms may be saturated or unsaturated.

The (A1) linear fatty acid having 14 or more and 24 or less carbon atoms is more preferably a saturated fatty acid. From the viewpoint of forming vesicles, the carbon number is preferably 22 or less. Furthermore, the carbon number is preferably 14 or more and 22 or less. Specifically, one or more fatty acids selected from the group consisting of myristic acid, palmitic acid, stearic acid, and behenic acid are mentioned. Among them, from the viewpoint of excellent smoothness at the time of rinsing of the conditioner, stearic acid having a carbon number of 18 is preferable.

The branched fatty acid having a carbon number of 14 or more and 24 or less as the component (A1) may, for example, be a saturated fatty acid represented by the formula (1).

In the above formula (1), the sum (a+b+c) of a, b, and c is 11 or more and 21 or less, and b is 1.

The branched saturated fatty acid represented by the formula (1) may be selected from the group consisting of 14-methylpentadecanoic acid, 15-methylhexadecanoic acid, 16-methylhexadecanoic acid, and 17-methyloctadecanoic acid. 18-methylnonanoic acid, 19-methylicosanoic acid, 20-methyl behenic acid, 14-methylhexadecanoic acid, 15-methylheptadecanoic acid, 16-methyloctadecanoic acid, 17 One or two or more of methyl lauric acid, 18-methyl icosuccinic acid, 19-methyl icosuccinic acid, and isostearic acid. Further, the branched fatty acid described in P.87 (C) isostearic acid of "The Cosmetics Raw Material Standards Second Edition Note I (1984) Pharmaceutical Daily Company" can be used. As a commercial product of the branched chain fatty acid, Isostearic Acid can also be used. EX [made by Kokyu Alcohol Kogyo].

From the viewpoint of excellent smoothness at the time of rinsing, (a+b+c) in the above formula (1) is preferably 13 (carbon number 16) or more. Further, it is preferably 19 (carbon number 22) or less, more preferably 17 (carbon number 20) or less. Among them, from the viewpoint of the feeling of use without feeling sticky at the time of rinsing, it is preferred that the (a+b+c) in the above formula (1) is 15 and has a methyl branched isostearyl acid.

The component (A1) may be used singly or in combination of two or more kinds. The content of the component (A1) is preferably 0.5% by mass or more, more preferably 1% by mass or more, and more preferably 10% by mass or less, and still more preferably 5% by mass or less based on the component (A) vesicle structure. In addition, the content of the component (A1) contained in the total amount of the hair cosmetic is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, and is preferably 2% by mass or less, more preferably 1% by mass or less. Further, it is preferably 0.6% by mass or less.

Further, the component (A1) is preferably a mixed linear fatty acid and a branched fatty acid from the viewpoints of smoothness during rinsing, suppression of slipperiness, smoothness after drying, and suppression of stickiness. The ratio of the linear fatty acid to the branched fatty acid ((linear) / (branched)) of the component (A1) in the vesicle structure is preferably 0.50 or more, more preferably 0.6 or more, and more preferably, by mass ratio. It is 3 or less, more preferably 2 or less.

From the viewpoint of forming vesicles, the freezing point of the component (A1) is preferably 30 ° C or higher, more preferably 35 ° C or higher. Moreover, it is preferably 55 ° C or less, more preferably 50 ° C or less, and further preferably 45 ° C or less from the viewpoint of smoothness during washing, smoothness, smoothness after drying, and suppression of stickiness.

The tertiary amine compound of the component (A2) may, for example, be a compound represented by the following formula (2).

[Chemical 2]

In the above formula (2), R ¹¹ represents a linear or branched alkyl group or a alkenyl group which may be interrupted by a functional group represented by -OCO- or -COO- having a carbon number of 8 or more and 35 or less or substituted by -OH. Or an aliphatic decyloxy (polyethoxy)ethyl group. R ¹² represents an alkyl group or a hydroxyalkyl group having 1 or more and 22 or less carbon atoms, or a polyoxyethylene group having a total molar number of 10 or less, and the two R ^{12 's} may be the same or different.

The tertiary amine compound as the component (A2) is preferably one or more compounds selected from the group consisting of the following tertiary amine compounds (i) to (iii).

(i) Hydroxyether alkylamine

For example, a compound represented by the following formula (3) can be mentioned.

In the above formula (3), R ¹⁷ represents a linear or branched alkyl group or alkenyl group having 6 or more and 24 or less carbon atoms. R ¹⁸ and R ¹⁹ may be the same or different, and represent an alkyl group having 1 or more and 6 or less carbon atoms or -(AO) _f H (A represents an alkylene group having 2 or more and 4 or less carbon atoms, and f represents 1 or more and 6 or less, f A may be the same or different, and the arrangement is arbitrary). e represents a number of 1 or more and 5 or less.

Specific examples thereof include cetyloxy (2-hydroxypropyl) dimethylamine, octadecyloxy (2-hydroxypropyl) dimethylamine or a mixture thereof.

(ii) etheramine

For example, a compound represented by the following formula (4) can be mentioned.

In the above formula (4), R ²⁰ represents a linear or branched alkyl group or alkenyl group having 6 or more and 24 or less carbon atoms. R ²¹ and R ²² may be the same or different, and represent an alkyl group having 1 to 6 carbon atoms or -(AO) _g H (A represents an alkylene group having 2 or more carbon atoms and 4 or less, and g represents 1 or more and 6 or less. The number of g A may be the same or different, and the arrangement is arbitrary.

Specific examples thereof include N,N-dimethyl-3-hexadecyloxypropylamine, N,N-dimethyl-3-octadecyloxypropylamine or a mixture thereof.

(iii) alkyl guanamine

For example, a compound represented by the following formula (5) can be mentioned.

[Chemical 5]

In the above formula (5), R ²³ represents an aliphatic hydrocarbon group having 11 or more and 23 or less carbon atoms. R ^{24 is the} same or different and represents a hydrogen atom or an alkyl group having 1 or more and 4 or less carbon atoms, and n is a number of 2 or more and 4 or less.

Specific examples thereof include N-(3-(dimethylamino)propyl) behenamide, N-(3-(dimethylamino)propyl)stearylamine or a mixture thereof.

The tertiary amine compound of the above (i) to (iii) is preferably (ii) an etheramine or (iii) a alkylguanamine, from the viewpoint of smoothness at the time of application and washing. Among them, preferred is (ii) an etheramine, and specifically, N,N-dimethyl-3-hexadecyloxypropylamine, N,N-dimethyl-3-octadecyloxy group is preferred. A propylamine or a mixture of these, more preferably N,N-dimethyl-3-octadecyloxypropylamine.

One or two or more kinds of the tertiary amine compounds of the component (A2) can be used. The content of the component (A2) in the vesicle structure of the component (A) is preferably 0.5% by mass or more, more preferably 1% by mass, in terms of the smoothness at the time of rinsing and the smoothness after drying. The above is further preferably 3% by mass or more. Moreover, from the same viewpoint, it is preferably 15% by mass or less, more preferably 10% by mass or less, and still more preferably 7% by mass or less.

In addition, the content of (A2) contained in the total amount of the hair cosmetic is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, and is preferably 5% by mass or less, more preferably 2% by mass or less. Here, the content of the component (A2) contained in the total amount of the hair cosmetic is only converted to the amount of the hair cosmetic contained in the vesicle structure, and the vesicle is not formed in the hair cosmetic. The amount of structure. Hereinafter, the content of the component (A3) to the component (A5) contained in the total amount of the hair cosmetic is also the same.

The organic acid having a carbon number of 1 or more and 8 or less as the component (A3) may be one or more selected from the group consisting of a monocarboxylic acid, a dicarboxylic acid, a hydroxycarboxylic acid, an aromatic carboxylic acid, and an acidic amino acid. Among these, an organic acid of 2 or more and 8 or less is preferable, and a hydroxycarboxylic acid, an acidic amino acid, or a mixture of these is preferable.

Specifically, the organic acid having a carbon number of 1 or more and 8 or less as the component (A3) may, for example, be a compound selected from the group consisting of one or more of the following compounds: a monocarboxylic acid such as acetic acid, propionic acid or octanoic acid; Dicarboxylic acids such as diacid, glutaric acid, adipic acid, maleic acid and fumaric acid; hydroxycarboxylic acids such as glycolic acid, lactic acid, hydroxyacrylic acid, glyceric acid, malic acid, tartaric acid and citric acid; An aromatic carboxylic acid selected from the group consisting of benzoic acid, salicylic acid and phthalic acid; an acidic amino acid such as glutamic acid and aspartic acid. The hydroxycarboxylic acid is preferably one or more compounds selected from the group consisting of glycolic acid, citric acid, lactic acid, and malic acid, more preferably glycolic acid, lactic acid, or a mixture thereof. As the acidic amino acid, glutamic acid is more preferable.

The content of the component (A3) is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, further preferably 4% by mass or less, and more preferably 2% by mass or less, based on the component (A) vesicle structure.

In addition, the content of the component (A3) contained in the total amount of the hair cosmetic is preferably 0.001% by mass or more, more preferably 0.005% by mass or more, and is preferably 1% by mass or less, more preferably 0.5% by mass or less. .

The component (A) vesicle structure can be appropriately combined with the component (A1), the component (A2), and the component (A3). For example, the ratio ((linear) / (branched)) of the linear fatty acid to the branched fatty acid in the component (A1) is preferably 0.6 or more and 3 or less by mass ratio, and the component (A2) is preferably set. (ii) an etheramine or (iii) a alkylguanamine as a component (A3) is a combination of at least one selected from the group consisting of glycolic acid and lactic acid.

The vesicle structure of the component (A) is preferably in the form of a dispersion (premix) of vesicles. The vesicle dispersion can be obtained, for example, through the following stages (step 1), (step 2), and (step 3).

The step of melting the oil phase containing the component (A1), the component (A2), and the component (A3) at a temperature above the melting point of the oil phase by performing (Step 1)

(Step 2) a step of performing phase inversion emulsification while adding an aqueous phase to the oil phase obtained in the step

(Step 3) The step of cooling the mixture obtained in the step 2 can preferably produce a vesicle structure in which the continuous phase is an aqueous phase.

In the first step, from the viewpoint of stable production, it is preferred to carry out the melting at a temperature (T = mp + Δ, Δ ≧ 0) above the melting point (mp) of the oil phase, and Δ is preferably 5 ° C or more. More preferably 10 ° C or more. That is, the melting temperature is preferably at least the melting point of the oil phase, more preferably 5 ° C or higher, more preferably 10 ° C or higher. Further, the upper limit of the oil phase temperature is preferably 95 ° C or lower, more preferably 90 ° C or lower, and still more preferably 85 ° C or lower. Further, the oil phase is preferably in a state of being uniformly mixed. For example, it is preferred that the oil phase is stirred and mixed while being melted.

In the step 2, the temperature at which the aqueous phase is dropped may be appropriately determined depending on the temperature of the oil phase, the temperature of the aqueous phase to be added, and the heating or cooling temperature in the mixing device. In particular, from the viewpoint of efficiently producing vesicles, it is preferred that the temperature of the oil phase and the temperature of the aqueous phase to be added be equal to or higher than the phase transition temperature of the formed vesicles. Further, the temperature at which the mixture is cooled in the step 3 is preferably carried out below the phase transition temperature.

The volume concentration of the vesicle structure in the vesicle dispersion can be adjusted by the drop rate of water relative to the oil phase and the stirring speed of the aqueous phase during the dropwise addition. Further, the makeup diameter of the vesicle can be adjusted by the stirring speed (shearing speed) of the mixture of the oil phase and the water phase after the start of the dropwise addition of the aqueous phase.

In the above manufacturing method, the vesicles are produced by dropping an aqueous phase into the oil phase. If vesicles are initially produced, the viscosity of the vesicle dispersion gradually increases and the volume concentration of the vesicles also increases. However, after the viscosity of the vesicle dispersion reaches the peak, even if the aqueous phase is added dropwise to the oil phase, the viscosity of the vesicle dispersion is reduced, and the vesicle volume concentration is also reduced. The amount of the aqueous phase added to the oil phase can be considered in consideration of the storage stability and handleability of the vesicle dispersion. Local adjustments.

In the production of the vesicle structure, purified water is preferably used. The amount of water used is not particularly limited, and can be appropriately adjusted depending on the purpose of use or the production conditions of the vesicle structure. Preferably, the amount of water contained in the vesicle structure is 0.5 to 5 mass times, preferably about 1 to 3 mass times, relative to the oil phase.

In the case where the vesicle dispersion is obtained by the above method, the molar ratio of the fatty acid of the component (A1) to the organic acid of the component (A3) is considered from the viewpoint of increasing the vesicle volume concentration in the vesicle dispersion (( A1)/(A3)) is preferably 1 or more, more preferably 2 or more, and is preferably 9 or less, more preferably 4 or less.

Further, in terms of effectively forming vesicles, the ratio of the acid equivalent of the total of the component (A1) to the component (A3) to the base equivalent of the component (A2) ({(A1) + (A3)) acid equivalent) The (A2) base equivalent) is preferably 0.25 or more, more preferably 0.5 or more, still more preferably 0.6 or more, and is preferably 4 or less, more preferably 2 or less, still more preferably 1.8 or less.

Further, the total content of the components (A1), (A2) and (A3) in the vesicle structure of the component (A) is preferably 1 in terms of storage stability or handleability of the vesicle dispersion. The mass% or more is preferably 20% by mass or less, more preferably 15% by mass or less.

Further, the component (A) vesicle structure may further contain (A4) a polyol. Examples of the polyhydric alcohol include propylene glycol, dipropylene glycol, 1,3-propanediol, glycerin, 1,3-butylene glycol, and isoprene glycol, and polypropylene glycol and sorbitol which are liquid at 25 ° C. One or more compounds. Among them, a glycol is preferred, and propylene glycol, dipropylene glycol, or a mixture thereof is more preferred.

The content of the component (A4) is preferably 0.5% by mass or more based on the storage stability of the vesicle structure of the component (A) and the smoothness of rinsing of the hair cosmetic, and is more preferably 0.5% by mass or more based on the vesicle structure. It is preferably 1% by mass or more, and more preferably 2% by mass or more. In addition, from the same viewpoint, it is preferably 40% by mass or less, more preferably 30% by mass or less, and still more preferably 20% by mass or less.

The method of adding the polyol of the component (A4) to the vesicle structure of the component (A) includes a method of adding one or more selected from the following methods: a method of adding to the oil phase in the above step 1. And a method of adding the aqueous phase of 1 or more times the oil phase of the molten oil phase to the oil phase alone or in combination with the aqueous phase in the above step 2; and adding the mixture to the above mixture in the above step 3.

In the case of adding to the oil phase of the step 1, the amount of the component (A4) to be added is preferably 0.5 to 2 times by mass, more preferably the component (A1) with respect to the total amount of the components (A1) to (A3). ) The total amount of ~(A3) is the same.

Further, when the component (A4) is added in the step 2, it may be preferable to add an aqueous phase of 2 times or more times the oil phase, more preferably 3 times or more times the aqueous phase of the oil phase. In the mixture, the component (A4) is directly added. In the step of producing the vesicle dispersion, as a method of adding the polyol, the method of adding in any of the steps 1, 2, or 3 is preferably divided into the step 1 and the step 2 or the step. 3 and add.

Further, the component (A4) polyol may be used singly or in combination of two or more kinds, and the same kind or different ones may be used in each step. In the case of adding in step 2 or step 3, it is preferred to use two or more kinds of polyols in combination, and dipropylene glycol and propylene glycol are preferably 10:90 to 90:10 by mass ratio (dipropylene glycol: propylene glycol), more preferably It is 20:80~80:20. The amount to be added in the step 2 or 3 is preferably 1% by mass or more, more preferably 3% by mass or more, further preferably 5% by mass or more, and preferably 30% by mass or less, more preferably the total amount of the vesicle dispersion liquid. It is preferably 20% by mass or less, and more preferably 15% by mass or less.

The component (A) vesicle structure may further contain a fatty acid ester having a component (A5) having a carbon number of 21 or more at the time of preparation. The fatty acid ester of the component (A5) is preferably a carbon number of 45 or less, more preferably a carbon number of 40 or less, more preferably 22 or more carbon atoms, still more preferably 30 or more. For example, a fatty acid ester selected from the group consisting of myristyl myristate, cetyl palmitate and stearyl stearate is preferred, and stearyl stearate is more preferred.

The content of the component (A5) is preferably 0.01% by mass or more based on the component (A) vesicle structure. More preferably, it is 0.05 mass% or more, More preferably, it is 0.1 mass% or more. Moreover, it is preferably 3% by mass or less, more preferably 2% by mass or less, and still more preferably 1% by mass or less. In addition, the content of the component (A5) contained in the total amount of the hair cosmetic is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, and is preferably 5% by mass or less, more preferably 2% by mass or less. Further, it is preferably 1% by mass or less.

Component (A5) is preferably formulated in the oil phase in the above step 1. By virtue of the long-chain fatty acid ester contained in the oil phase, the freezing point of the (A1) linear or branched fatty acid can be adjusted to obtain a stable vesicle structure.

In the case where the vesicle structure of the component (A) contains the component (A5), the freezing point of the mixture of the linear or branched fatty acid and the (A5) fatty acid ester of the component (A1) is the same as the freezing point of the single component of the component (A1). It is preferably 30 ° C or higher, more preferably 35 ° C or higher, and is preferably 55 ° C or lower, more preferably 50 ° C or lower, and still more preferably 45 ° C or lower.

Here, in the case where the component (A4) and the component (A5) are contained in addition to the specific combination of the components (A1) to (A3), for example, the linear fatty acid in the component (A1) is more preferably used. The ratio of the branched fatty acid ((linear) / (branched)) is 0.6 or more and 3 or less, and the component (A2) is (ii) an etheramine or (iii) a alkylguanamine. The component (A3) is a component selected from at least one of glycolic acid and lactic acid, and the component (A4) is propylene glycol, dipropylene glycol or a mixture thereof, and the component (A5) is stearic acid stearin. Combination of esters.

Further, when the vesicle structure is produced in the above-described production process, an arbitrary component, particularly an oily component, can be added to the oil phase without hindering the generation of the component (A) vesicle structure. For example, various extracts, antioxidants, etc. are mentioned. From the viewpoint of obtaining a stable vesicle dispersion, the blending amount of the components (A1), (A2), (A3) and (A5) to the oil phase is 1% by mass or less of the entire oil phase.

Similarly, any component such as water-soluble extracts and preservatives may be added to the aqueous phase without hindering the manufacture of the vesicles. The component other than the water and the component (A4) is preferably 0.1% by mass or less based on the entire aqueous phase.

In the above manufacturing process, the aqueous phase is added dropwise to the oil phase in the shear mixing state. The mixing device is not particularly limited as long as it can be sheared and mixed, and is preferably a device capable of mixing a high viscosity when the aqueous phase is added to a high viscosity. For example, Agi Homo Mixer manufactured by PRIMIX Co., Ltd., TKCOMBI MIX , a vacuum emulsification agitation device manufactured by Mizuho Industrial Co., Ltd., a Maxblend agitation tank manufactured by Sumitomo Heavy Industries, Ltd., and a Super-Mix agitation tank manufactured by Satake Chemical Industry Co., Ltd.

It is considered that the vesicle structure of the component (A) can be easily changed from the vesicle structure to the film shape when the hair cosmetic is applied to the hair, and the characteristics on the surface of the hair can be preferably changed.

In terms of imparting smoothness, no stickiness, etc., the content of the vesicle structure of the component (A) in the total amount of the hair cosmetic is a component of the vesicle (A1) linear or branched fatty acid and optionally The total amount of the component (A5) to be formulated is preferably 0.01% by mass or more, and more preferably 0.05% by mass or more. Moreover, it is preferably 5% by mass or less, more preferably 2% by mass or less, and further preferably 1 in terms of smoothness at the time of rinsing and a smooth and non-sticky hair cosmetic after drying. Below mass%. This hair cosmetic can maintain or improve the softness and uniformity of the previous hair cosmetic even if it is reduced by the active ingredient of the prior hair cosmetic, and is smooth during rinsing, smooth after drying, and inhibited. Sticky feeling.

The hair cosmetic of the present invention comprises (B) a cationic surfactant. As the cationic surfactant, a quaternary ammonium compound, a tertiary amine compound or a mixture of these may be mentioned.

The tertiary amine compound is selected from the group consisting of (i) a hydroxyether alkylamine represented by the formula (3), and (ii), which is the same as the component (A2) of the vesicle structure as the component (A). One or more compounds selected from the group consisting of an ether amine represented by the formula (4) and (iii) an alkyl amide amine represented by the formula (5). From the viewpoint of the feeling of fusion at the time of application and the smoothness at the time of rinsing, (ii) an etheramine or (iii) a alkylguanamine is preferred. Among them, preferred is (ii) an etheramine, and specifically, N,N-dimethyl-3-hexadecyloxypropylamine, N,N-dimethyl-3-octadecyloxy group is preferred. A propylamine or a mixture of these, more preferably N,N-dimethyl-3-octadecyloxypropylamine. Tertiary amination The compound may be a salt formed by an organic acid and/or an inorganic acid, or may be formed into a salt together with the above-mentioned organic acid or pH adjusting agent.

The compound represented by the following formula (6) is exemplified as the quaternary ammonium compound.

In the above formula (6), A represents a hydrogen atom, a fatty guanamine group having a carbon number of 12 or more and 24 or less, an N-substituted amine carbaryl group, a decyloxy group or an alkoxy group, and B represents a carbon which may have a hydroxyl group. a divalent hydrocarbon group of 1 or more and 28 or less, and R ¹ , R ² and R ³ each represent an alkyl group having 1 or more and 3 or less carbon atoms, or at least one alkyl group or an alkenyl group having 4 or more and 24 or less carbon atoms. The remainder represents an alkyl group having a carbon number of 1 or more and 3 or less, and X ^- represents a halide ion or an organic anion. Here, the substituent A in the formula (6) is different from A in the general formula (3) and the general formula (4).

The quaternary ammonium compound represented by the above formula (6) may be one or more selected from the group consisting of stearyltrimethylammonium chloride, myristyltrimethylammonium chloride, and cetyl wax. Mono-long-chain alkyl quaternary ammonium salts such as trimethylammonium chloride, peanut-based trimethylammonium chloride, behenyltrimethylammonium chloride, lauryl trimethylammonium chloride; distearyl Dimethylammonium chloride, dioleyldimethylammonium chloride, bis[(2-dodetodecylamino)ethyl]dimethylammonium chloride, bis[(2-stearylamine) Di-long-chain alkyl or alkenyl quaternary ammonium salts such as propyl]dimethylammonium sulphate; diisostearyl dimethylammonium sulphate, 2-mercaptotetradecyltrimethyl chlorination Ammonium, 2-dodecylhexadecyltrimethylammonium chloride, di-2-hexyldecyldimethylammonium chloride, di-2-octyldodecyldimethylammonium chloride, etc. Branched alkyl quaternary ammonium salt; fatty guanamine alkyl quaternary ammonium salt such as stearyl propyl quaternary ammonium salt; N-stearylamine methyl propyl propyl quaternary ammonium N-substituted amine mercaptoalkyl quaternary ammonium salt such as salt; decyloxyalkyl quaternary ammonium salt such as stearyl propyl quaternary ammonium salt (for example, stearyl propyl trimethyl ammonium chloride) An alkyl or alkenyloxyalkyl quaternary ammonium salt such as octadecyloxypropyltrimethylammonium chloride.

The content of the component (B) is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, further preferably 0.5% by mass or more, and more preferably 20% by mass or less, more preferably the total amount of the hair cosmetic. It is 10% by mass or less, and more preferably 7% by mass or less. Here, the content of the component (B) is different from the component (A2) contained in the vesicle structure, and is an amount directly formulated in the hair cosmetic.

Furthermore, the total content of the component (A2) and the component (B) contained in the hair cosmetic is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, still more preferably 0.5% by mass or more, and further, It is preferably 20% by mass or less, more preferably 10% by mass or less, still more preferably 7% by mass or less.

The hair cosmetic of the present invention contains (C) an aromatic alcohol. The aromatic alcohol is exemplified by the following formula (7).

In the general formula ^(7), R 7 represents a hydrogen atom, a methyl or methoxy group, Y ³ represents a single bond or a carbon number of 1 or more and 3 or less of a straight-chain or branched-chain alkylene or alkenylene group, Z ¹ It represents a hydrogen atom or a hydroxyl group, and r and s each represent a number of 0 or more and 5 or less.

The aromatic alcohol as the component (C) may be one or more selected from the group consisting of benzyl alcohol, cinnamyl alcohol, phenethyl alcohol, p-anisyl alcohol, p-methylbenzyl alcohol, phenoxyethanol, and 2-benzyloxyethanol. Compound. Among these, benzyl alcohol, 2-benzyloxyethanol or a mixture of these is preferable, and benzyl alcohol is more preferable.

The content of the component (C) in the hair cosmetic of the present invention is preferably 0.05% by mass or more, and more preferably 0.1% by mass or more, from the viewpoint of the feeling of fusion when the hair cosmetic is applied. In the hair cosmetic of the present invention, the content of the component (C) is preferably 10% by mass or less, more preferably 5% by mass or less, and still more preferably 3% by mass or less. .

The organic acid (D) of the present invention is an organic acid having 1 or more and 10 or less carbon atoms, preferably 1 or more and 8 or less, more preferably a hydroxymonocarboxylic acid and dicarboxylic acid selected from 2 to 8 carbon atoms. One or more of the organic carboxylic acids. Specifically, the same as the component (A3) of the vesicle structure of the above component (A). Among them, a compound selected from the group consisting of glycolic acid, lactic acid, malic acid, tartaric acid, succinic acid, and maleic acid is preferred, and lactic acid, malic acid, or a mixture thereof is more preferred.

The content of the component (D) is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, even more preferably 0.2% by mass or more based on the softness and uniformity of the hair after drying. 0.5% by mass or more. Moreover, from the viewpoint of feeling from the time of application to the time of rinsing, it is preferably 5% by mass or less, more preferably 3% by mass or less, and still more preferably 2.5% by mass or less. Here, the content of the component (D) is different from the component (A3) contained in the vesicle structure, and is an amount directly formulated in the hair cosmetic.

Furthermore, the total content of the component (A3) and the component (D) contained in the hair cosmetic is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, and still more preferably 0.5% by mass or more. Moreover, from the viewpoint of feeling from the time of application to the time of rinsing, it is preferably 5% by mass or less, more preferably 3% by mass or less, and still more preferably 2.5% by mass or less.

The hair cosmetic of the present invention preferably has a pH of from 1 to 5.5 at 25 ° C when diluted with water to 20 times by weight. When it is in this range, it has a function of recovering damage such as hair dyeing, and it is excellent in the function which gives favorable softness and the uniformity from the time of the wet-drying to drying. From the viewpoint of the recovery effect of the damaged hair, the pH is preferably adjusted to be 2 to 5, and more preferably 2.5 to 4.5. Adjustment of pH value In addition to the organic acid, an organic substance such as an inorganic acid or sodium hydroxide or the like is usually used as a pH adjuster.

The hair cosmetic of the present invention may further comprise, as component (E), a fatty acid ester having a carbon number of 20 or less (E1), an aliphatic alcohol having a carbon number of 20 or less (E2) or an oily component of the mixture.

The fatty acid ester having a carbon number of 20 or less as the component (E1) may, for example, be isopropyl palmitate or isopropyl myristate or a mixture thereof. The content of the component (E1) is preferably 0.05% by mass or more, and more preferably 0.1% by mass or more, based on the hair cosmetic. Further, it is preferably 10% by mass or less, and more preferably 5% by mass or less.

The aliphatic alcohol as the component (E2) is preferably an aliphatic alcohol having 8 or more and 30 or less carbon atoms. Thereby, the hair can be made smooth when applied to the hair. An aliphatic alcohol having a linear or branched alkyl group or an alkenyl group is preferred, and an aliphatic alcohol having a linear or branched alkyl or alkenyl group having a carbon number of 12 or more and 26 or less is more preferable, and further preferably An aliphatic alcohol having a linear or branched alkyl or alkenyl group having 16 or more and 22 or less carbon atoms, particularly preferably an aliphatic alcohol having a linear or branched alkyl or alkenyl group having 16 or more and 18 or less carbon atoms . Specifically, cetyl alcohol, stearyl alcohol, or a mixture thereof is more preferably stearyl alcohol from the viewpoint of making the hair smoother.

The content of the component (E2) is preferably 0.3% by mass or more, more preferably 0.5% by mass or more, and still more preferably 1% by mass or more, based on the hair cosmetic. Moreover, it is preferably 30% by mass or less, more preferably 20% by mass or less, further preferably 15% by mass or less, and particularly preferably 10% by mass or less.

In addition, since the aliphatic alcohol of the component (E2) is easy to obtain a layered flaky structure during emulsification, the amount thereof to be added to the vesicle dispersion is preferably 1% by mass or less, more preferably 0.5% by mass or less, or It is preferably not formulated when preparing the vesicle dispersion. Further, in the component (A) vesicle structure, it is preferred that the aliphatic alcohol (E2) is substantially not contained.

The hair cosmetic of the present invention may further comprise (F) a polyoxynitride. As a component (F), which may be selected from the group consisting of high-polymerized dimethyl polyoxyalkylene, methyl polyoxyalkylene, amine-modified polyoxymethylene, polyether modified polyoxymethylene, methylphenyl polyoxyalkylene, Fatty acid modified polyoxyl, alcohol modified polyoxyl, alkoxy modified polyoxyl, epoxy modified polyoxygen, fluorine modified polyoxygen, cyclic polyoxyl and alkyl modified poly One or more compounds of oxygen.

As an amine-modified polyfluorene oxide, more preferably an average molecular weight of about 3,000 to 100,000, the name of Amodimethicone is described in CTFA (Cosmetic, Toiletry and Fragrance Association, American Cosmetics and Fragrance Association). The third edition of the dictionary (United States, Cosmetic Ingredient Dictionary). In addition, as a commercially available product of the amine-modified polyfluorene, SILSOFT AX, XS65-C0032, KT1989 (manufactured by Momentive Performance Materials Japan), 8500 Conditioning Agent, DOW CORNING TORAY SS-3588, DOW CORNING TORAY SILSTYLE 104 (manufactured by Dow Corning Toray), etc. Further, examples of the alkyl-modified polyfluorene oxide include SF1632 and SF-1642 (manufactured by Momentive Performance Materials Japan). Among them, a highly polymerized dimethyl polyoxyalkylene is more preferable from the viewpoint of imparting smoothness.

The content of the component (F) is preferably 0.2% by mass or more, and more preferably 0.5% by mass or more, based on the hair cosmetic. Further, it is preferably 20% by mass or less, and more preferably 15% by mass or less.

The hair cosmetic of the present invention may further comprise (G) a compound represented by the following formula (I).

R ^a -O-(MO)nR ^b (I)

In the formula (I), R ^a represents ^a linear or branched alkyl or alkenyl group having 8 or more and 10 or less carbon atoms, MO represents an alkylene oxide group having 2 or more and 4 or less carbon atoms, and n is an alkylene oxide group. The number represents an average of 0.5 or more and 3.5 or less, and R ^b represents a hydrogen atom or a methyl group.

As the component (G), for example, polyoxyethylene (3) monooctyl ether can be mentioned. The content of the component (G) is preferably 0.05% by mass or more, and more preferably 0.1% by mass or more, based on the hair cosmetic. Further, it is preferably 3% by mass or less, and more preferably 1.5% by mass or less.

The hair cosmetic of the present invention contains water. The water is preferably purified water. The content of water is not particularly limited, and can be appropriately adjusted depending on the purpose of use. For example, the hair cosmetic is preferably 45 mass% or more, more preferably 50 mass% or more, and still more preferably 60 mass% or more. Further, the upper limit is preferably 95% by mass or less, and more preferably 90% by mass.

In the hair cosmetic of the present invention, other components generally used for hair cosmetics can be further formulated according to the purpose. For example, a cationic polymer such as a cationized cellulose or a cationized guar gum; a vegetable oil such as sunflower oil or castor oil; a hydride or a mixture thereof; (hydroxystearic acid/stearic acid/rosinic acid); An organic acid ester of a polyol condensate such as dipentaerythritol ester; a nonionic surfactant such as polyoxyethylene alkyl ether, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene hydrogenated castor oil; zinc pyrithione, chlorine An anti-dandruff agent such as benzalkonium chloride; a chelating agent, an ultraviolet absorber, an antioxidant, a coloring agent, a perfume, a preservative, and the like.

The method for producing a hair cosmetic of the present invention is obtained by adding a component (B) cationic surfactant and (C) to the aqueous phase containing the component (D) organic acid and water by heating and stirring. After the oil phase such as an aromatic alcohol is emulsified to adjust the base of the hair cosmetic, the component (A) vesicle structure is added. Specifically, the method comprises the steps of: preparing (A) a continuous phase as an aqueous phase, a linear or branched fatty acid having a carbon number of 14 or more and 24 or less, (A2) a tertiary amine compound, and (A3) a step of a vesicle structure having an organic acid having a carbon number of 1 or more and 8 or less and an average particle diameter of 5 μm or more and 50 μm or less; and a component (A) vesicle structure and (B) a cationic surfactant; C) a step of mixing an aromatic alcohol and (D) a hair cosmetic base having an organic acid having 1 or more carbon atoms and 10 or less. When the hair cosmetic base is produced, the temperature at the time of emulsification is preferably equal to or lower than the gel transfer temperature of the obtained cosmetic base. Here, from the viewpoint of the stability of the vesicle, the vesicle structure of the component (A) is preferably formulated at a temperature below the phase transition temperature of the vesicle. Thereby, a hair cosmetic which maintains the vesicle structure of the component (A) can be obtained.

Examples of the hair cosmetic of the present invention include hair conditioner, conditioner, conditioner, shampoo, and the like. As a particularly effective hair cosmetic, it is preferably a conditioner, a conditioner, or a conditioner. These hair cosmetics may be used in the form of rinsing after applying the hair cosmetic, or may be in a form not to be washed.

The embodiments of the present invention have been described above, but these are examples of the present invention, and various configurations other than the above may be employed. In the above embodiment, the present invention further discloses the following composition, production method, or use.

<1> A hair cosmetic comprising the following components (A), (B), (C), (D) and water,

(A) The continuous phase is an aqueous phase, and includes a linear or branched fatty acid having a carbon number of 14 or more and 24 or less, (A2) a tertiary amine compound, and (A3) an organic group having 1 or more carbon atoms and 8 or less carbon atoms. a vesicle structure having an acid particle size and an average particle diameter of 5 μm or more and 50 μm or less

(B) Cationic surfactant

(C) aromatic alcohol

(D) An organic acid having 1 or more carbon atoms and 10 or less carbon atoms.

<2> The hair cosmetic according to the above <1>, wherein the vesicle structure of the component (A) further contains a polyol as the component (A4), and the polyol is preferably selected from the group consisting of propylene glycol, dipropylene glycol, and 1 Further, one or more of 3-propanediol, glycerin, 1,3-butanediol, and isoprene glycol, and liquid polypropylene glycol and sorbitol at 25 ° C.

The hair cosmetic according to the above-mentioned item (1), wherein the vesicle structure of the component (A) further contains a fatty acid ester having 21 or more carbon atoms as the component (A5), preferably carbon. The number is 45 or less, more preferably 40 or less, and more preferably 22 or more carbon atoms, more preferably 30 or more carbon atoms, and further preferably selected from myristyl myristate, cetyl palmitate and hard. The fatty acid ester in stearyl oleate, and more preferably stearyl stearate.

<4> The hair cosmetic according to the above <3>, wherein the mixture of the components (A1) and (A5) in the component (A) vesicle structure has a freezing point of 30 ° C or higher, preferably 35 ° C. The above is also 55 ° C or lower, preferably 50 ° C or lower, more preferably 45 ° C or lower.

The hair cosmetic according to any one of the above-mentioned <1> to <4> wherein the total acid equivalent of the component (A1) and the component (A3) in the component (A) vesicle structure is relative to The ratio of the base equivalent of the component (A2) ({(A1) + (A3)} acid equivalent / (A2) base equivalent)) is 0.25 or more, preferably 0.5 or more, more preferably 0.6 or more, and further 4 or less. It is preferably 2 or less, more preferably 1.8 or less.

The hair cosmetic according to any one of the above-mentioned items (1), wherein the component (A1), the component (A2), and the component (A3) in the component (A) vesicle structure. The total content of the content is 1% by mass or more and 20% by mass or less, preferably 15% by mass or less.

The hair cosmetic according to any one of the above aspects, wherein the total mass ratio of the component (A5) to the hair cosmetic as a whole is 0.01% by mass or more, preferably 0.05% by mass. % or less is 5% by mass or less, preferably 2% by mass or less, and more preferably 1% by mass or less.

The hair cosmetic according to any one of the above aspects, wherein the hair cosmetic further comprises (E1) a fatty acid ester having a carbon number of 20 or less, (E2) an aliphatic alcohol, or the like. The oily component in the mixture is used as the component (E), and as the component (E1), preferably isopropyl palmitate, isopropyl myristate or a mixture thereof, as the component (E2), preferably a carbon number. The aliphatic alcohol having 8 or more and 30 or less is more preferably an aliphatic alcohol having a linear or branched alkyl group or an alkenyl group having 12 or more and 26 or less carbon atoms, and more preferably having a carbon number of 16 or more and 22 or less. The aliphatic alcohol of a linear or branched alkyl or alkenyl group is more preferably an aliphatic alcohol having a linear or branched alkyl or alkenyl group having 16 or more and 18 or less carbon atoms, of which cetyl alcohol is preferred. , stearyl alcohol, or a mixture of these.

The hair cosmetic according to any one of the above aspects, further comprising a polyfluorene oxide compound as the component (F), preferably comprising a polymerized dimethylpolysiloxane. , methyl polyoxyalkylene, amine modified polyoxyl, polyether modified polyoxyl, methylphenyl Polyoxyalkylene, fatty acid modified polyoxyl, alcohol modified polyoxyl, alkoxy modified polyoxyl, epoxy modified polyoxygen, fluorine modified polyoxyl, cyclic polyoxyn and alkane One or more compounds of the modified polyfluorene oxygen are used as the component (F).

The hair cosmetic according to any one of the above-mentioned items, wherein the linear fatty acid of the component (A1) is preferably 22 or less, preferably selected from the group consisting of myristic acid, palmitic acid, and hard. One or more of the fatty acid and the behenic acid, and the branched fatty acid of the component (1A) is the above formula (1).

The hair cosmetic according to any one of the above-mentioned items, wherein the mass ratio (linear/branched) of the linear fatty acid to the branched fatty acid in the component (A1) is 0.6 or more. It is preferably 1 or more, and is 3 or less, preferably 2 or less.

The hair cosmetic according to any one of the above-mentioned items (1), wherein the (A2) tertiary amine compound is one or more of the formula (3), (4) or (5). The compound is preferably an ether amine of the above formula (4) or a alkyl amide amine of the formula (5), more preferably an etheramine of the formula (4), and further preferably N, N- Dimethyl-3-hexadecyloxypropylamine, N,N-dimethyl-3-octadecyloxypropylamine or a mixture of these.

The hair cosmetic according to any one of the above-mentioned items, wherein the (A3) organic acid is one or more selected from the group consisting of glycolic acid, citric acid, lactic acid, and malic acid.

The hair cosmetic according to any one of the above-mentioned items, wherein the vesicle structure of the component (A) has an average particle diameter of 7 μm or more and 30 μm or less, preferably 20 μm or less.

The hair cosmetic according to any one of the above-mentioned <1> to <14>, which comprises the quaternary ammonium compound represented by the formula (6), the above formula (3), (4) or ( 5) A tertiary amine compound represented by the above, or a mixture thereof, as the above (B) cationic surfactant.

<16> The hair cosmetic according to any one of <1> to <15> wherein The amount of the (B) cationic surfactant is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, further preferably 0.5% by mass or more, and more preferably 20% by mass or less, based on the hair cosmetic. It is more preferably 10% by mass or less, further preferably 7% by mass or less, and further, the total content of the component (A2) and the component (B) is preferably 0.1% by mass or more, more preferably 0.3% by mass or more. It is preferably 0.5% by mass or more, more preferably 20% by mass or less, still more preferably 10% by mass or less, still more preferably 7% by mass or less.

The hair cosmetic according to any one of the above-mentioned items, wherein the compound represented by the formula (7) contains (C) an aromatic alcohol, preferably contains a benzyl alcohol, One or more compounds of cinnamyl alcohol, phenethyl alcohol, p-anisyl alcohol, p-methylbenzyl alcohol, phenoxyethanol, and 2-benzyloxyethanol are (C) aromatic alcohols.

The hair cosmetic according to any one of the above-mentioned items, wherein the content of the component (C) is preferably 0.05% by mass or more, and more preferably 0.1% by mass or more based on the hair cosmetic. Further, it is preferably 10% by mass or less, more preferably 5% by mass or less, still more preferably 3% by mass or less.

The hair cosmetic according to any one of the above-mentioned items, wherein the component (D) is preferably an organic acid having a carbon number of 1 or more and 8 or less, more preferably a carbon number of 2 or more and 8 or more. The organic acid below preferably further comprises one or more compounds selected from the group consisting of glycolic acid, lactic acid, malic acid, tartaric acid, succinic acid, and maleic acid.

The hair cosmetic according to any one of the above-mentioned items, wherein the content of the component (D) is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, based on the hair cosmetic. Furthermore, it is preferably 0.5% by mass or more, more preferably 5% by mass or less, still more preferably 3% by mass or less, further preferably 2.5% by mass or less, and further, the content of the above component (A3) and component (D). The total amount is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, still more preferably 0.5% by mass or more, further preferably 5% by mass or less, more preferably 3% by mass or less, still more preferably 2.5 or less. Below mass%.

The hair cosmetic according to any one of the above items <1> to <20> wherein When diluted with water to 20 times by weight, the pH at 25 ° C is preferably from 1 to 5.5, more preferably from 2 to 5, and further preferably from pH 2.5 to 4.5.

The hair cosmetic according to any one of the above-mentioned items, wherein the content of water in the hair cosmetic is preferably 45 mass% or more, more preferably 50 mass% or more, and further preferably It is 60% by mass or more, more preferably 95% by mass or less, and still more preferably 90% by mass or less.

The hair cosmetic according to any one of the above-mentioned items, wherein the component (A1) may be used singly or in combination of one or more kinds, and the component (A1) is contained in the component. The vesicle structure of (A) is preferably 0.5% by mass or more, more preferably 1% by mass or more, and is preferably 10% by mass or less, and more preferably 5% by mass or less.

The hair cosmetic according to any one of the above-mentioned items, wherein the content of the component (A1) contained in the total amount of the hair cosmetic is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, and preferably 2% by mass or less, more preferably 1% by mass or less, still more preferably 0.6% by mass or less.

The hair cosmetic according to any one of the above-mentioned items (1), wherein the component (A2) may be used alone or in combination of two or more components, and the component (A2) is contained in the component (A). The foam structure is preferably 0.5% by mass or more, more preferably 1% by mass or more, further preferably 3% by mass or more, more preferably 15% by mass or less, still more preferably 10% by mass or less, and further preferably It is 7 mass% or less.

The hair cosmetic according to any one of the above-mentioned items, wherein the content of the component (A2) contained in the total amount of the hair cosmetic is only converted to the presence of the hair cosmetic. The amount in the vesicle structure is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, and is preferably 5% by mass or less, more preferably 2% by mass or less.

The hair cosmetic according to any one of the above-mentioned items, wherein the component (A3) may be used singly or in combination of one or more kinds, and the component (A3) is contained in the component. The vesicle structure of (A) is preferably 0.05% by mass or more, more preferably 0.1% by mass. The above is preferably 4% by mass or less, and more preferably 2% by mass or less.

The hair cosmetic according to any one of the above-mentioned <1>, wherein the content of the component (A3) contained in the total amount of the hair cosmetic is only converted to the presence of the hair cosmetic. The amount in the vesicle structure is preferably 0.001% by mass or more, more preferably 0.005% by mass or more, and is preferably 1% by mass or less, and more preferably 0.5% by mass or less.

The hair cosmetic according to any one of the above aspects, wherein the vesicle structure of the component (A) has a mass ratio of a linear fatty acid to a branched fatty acid in the component (A1). (linear) / (branched) is 0.6 or more and 3 or less, and component (A2) is (ii) etheramine or (iii) alkylguanamine, and component (A3) is selected from glycolic acid. Or a component of at least one of lactic acid.

The method for producing a hair cosmetic according to any one of the above-mentioned items, wherein the method comprises the following steps: preparing (A) a continuous phase as an aqueous phase a linear or branched fatty acid having a carbon number of 14 or more and 24 or less, (A2) a tertiary amine compound, and (A3) an organic acid having 1 or more and 8 or less carbon atoms, and an average particle diameter of 5 μm or more And a step of vesicle structure of 50 μm or less; and the component (A) vesicle structure and the (B) cationic surfactant, (C) aromatic alcohol, and (D) carbon number of 1 or more and 10 The following steps of mixing the organic acid hair cosmetic base.

The method of producing a hair cosmetic according to any one of the above items <1> to <30>, wherein the step of preparing the component (A) vesicle structure comprises the following steps Step: In the first step, the linear or branched fatty acid having a carbon number of 14 or more and 24 or less, the (A2) tertiary amine compound, and the (A3) organic acid having 1 or more carbon atoms and 8 or less carbon atoms are contained. The oil phase is melted at a temperature above the melting point (mp) of the oil phase (T=mp+Δ, Δ≧0); in the second step, one side is added to the oil phase melted in the first step Phase inversion emulsification; step 3, which cools the mixture obtained in the second step.

<32> The method for producing a hair cosmetic according to the above <31>, wherein in the first step, Δ is preferably 5° C. or higher, more preferably 10° C. or higher, and the upper limit of the oil phase temperature is preferably 95° C. Hereinafter, it is more preferably 90 ° C or less, and particularly preferably 85 ° C or less.

<33> The method for producing a hair cosmetic according to <31>, wherein the step of preparing the component (A) vesicle structure comprises the step of selecting one or more of the following steps: a step of adding a polyol as the component (A4) to the oil phase in the step; and adding the above-mentioned aqueous phase of the melted oil phase to the oil phase in the second step, and then separately Or a step of adding a polyol as the component (A4) together with the above aqueous phase; and a step of adding a polyol as the component (A4) to the above mixture in the above third step.

The method for producing a hair cosmetic according to any one of the above-mentioned, wherein the second step further comprises the step of: preferably adding the mass of the oil phase to which the melt is added After the aqueous phase is more than twice the amount, it is more preferable to add the polyol as the component (A4) to the mixture obtained by adding the aqueous phase of 3 times or more the oil phase.

The method for producing a hair cosmetic according to any one of the above-mentioned, wherein, in the case of adding the (A4) polyol in the above step 2 or step 3, it is preferably a binary The alcohol, especially more preferably propylene glycol, dipropylene glycol, or a mixture thereof, is preferably 10:90 to 90:10, more preferably 20:80 by mass ratio of dipropylene glycol to propylene glycol (dipropylene glycol: propylene glycol). ~80:20.

The method for producing a hair cosmetic according to any one of the above-mentioned items, wherein the content of the component (A4) is preferably 0.5% by mass in the vesicle structure of the component (A). The above is more preferably 1% by mass or more, further preferably 2% by mass or more, and is preferably 40% by mass or less, more preferably 30% by mass or less, and still more preferably 20% by mass or less.

<37> A hair cosmetic according to any one of the above <1> to <36>, which is applied to the hair, rinsed, and dried.

[Examples]

In the following examples, all expressed by % are % by mass.

(Manufacturing Example 1A)

The total amount was converted to 100 g according to the formula of Table 1. One side of the stirring component (A1), the component (A2), the component (A3), the component (A4), and the component (A5) were heated and mixed at 80 ° C to completely melt the raw material to obtain an oil phase. Here, the component (A4) added to the oil phase is 8/11 of dipropylene glycol. In the oil phase, an aqueous phase component (purified water) which was separately heated and mixed to 80 ° C was added dropwise at a stirring speed and a dropping time shown in Table 1, and the phase inversion emulsification was carried out at 80 °C. Thereafter, after standing to cool to 35 ° C or lower, the remaining portion of the component (A4) was added while stirring to obtain a vesicle dispersion liquid.

Further, the propeller motor used for the agitation was manufactured by HEIDON Three-One Motor BL600, manufactured by Shinto Scientific Co., Ltd., and the homomixer was manufactured by T.K. HOMOMIXER Mark II. 2.5 model, PRIMIX Co., Ltd.

(Production Examples 2A to 7A, Comparative Production Example 1B)

The components (A1) to (A4) were made into an oil phase in the same manner as in Production Example 1A except that the total amount of the component (A4) was added to the oil phase, and the capsule was obtained in the same manner as in Production Example 1A. Bubble dispersion.

(determination of freezing point)

In Production Examples 1A and 3A and Comparative Production Example 1B, a mixture of the component (A1) and the component (A5) which were melt-melted was prepared, and in the production examples 2A and 4A to 7A, only the component (A1) was accurately weighed. A sample of the measurement tank was sealed, and the freezing point was measured using a differential scanning calorimeter (EXSTAR 6000, manufactured by Seiko Instruments Co., Ltd.). The measurement conditions were such that the temperature was raised from 5 ° C to 90 ° C at a heating rate of 1 ° C / min, and then cooled to 5 ° C at a cooling rate of 1 ° C / min. The freezing point is determined based on the position of the exothermic peak at which cooling occurs. The results are shown in Table 1.

(observation of vesicle structure)

Production Examples 1A to 7A and Comparative Production Example 1B were observed under an optical microscope (ECLIPSE E800, manufactured by NIKON Co., Ltd.) under room temperature (25 ° C) and polarized light conditions (orthogonal polarized light).

Further, the average particle diameter of the vesicles in Production Examples 1A to 7A was measured at 25 ° C using Multisizer ^TM 4 manufactured by Beckman Coulter Co., Ltd. Further, the average particle diameter is a volume-based median diameter (D50).

The results are shown in Table 1.

*1~9 in Table 1 are as follows.

* 1: Straight chain behenic acid (Lunac BA, Kao Co., Ltd.)

* 2: Linear stearic acid (Lunac S-90V, Kao Co., Ltd.)

* 3: Linear palmitic acid (Lunac P-95, Kao Co., Ltd.)

* 4: Straight chain myristic acid (Lunac MY-98, Kao Co., Ltd.)

* 5: Isostearic Acid EX (Kokyu Alcohol Kogyo Co., Ltd.)

* 6: Stearyloxypropyl dimethylamine (N,N-dimethyl-3-octadecyloxypropylamine) (Farmin DM E-80, Kao Corporation)

* 7: Lactic acid (Musashino Lactic Acid 90, Musashino Chemical Research Institute Co., Ltd.)

* 8: Dipropylene glycol (DPG-RF, ADEKA Co., Ltd.)

* 9: Propylene glycol (propylene glycol for cosmetics, ADEKA Co., Ltd.)

(Examples 1 to 13 and Comparative Examples 1 to 12)

Using the vesicle dispersion of Table 1, the conditioner was prepared by the following method, and each evaluation was performed. Further, the hair conditioners prepared in Examples 1 to 13 and Comparative Examples 1 to 12 were hair cosmetic materials used in a rinse form.

(conditioner)

According to the formula of Table 2 to Table 4, the total amount was converted into 1000 g to prepare a conditioner. The oil phase containing the components (B), (C), (E) and (G) is uniformly melted at 70-80 ° C, and then added to an aqueous phase in which the component (D) and water are separately mixed and carried out. After emulsification, the component (F) is added to adjust the base of the hair cosmetic. The vesicle dispersion of each of Production Examples 1A to 7A or Comparative Production Example 1B obtained by the formulation of Table 1 was added to the obtained hair cosmetic base at a temperature below the phase transition temperature (about 35 ° C) to prepare a conditioner. .

In Example 3 and Example 4, 15.0% and 30.0% of the vesicle dispersion of Production Example 1A were prepared, respectively, instead of 5.0% of the vesicle dispersion of Preparation Example 1A in Example 1, and The same procedure was used to prepare the conditioner.

Comparative Examples 4 to 6 did not prepare vesicles, and the same components as those of the vesicle dispersion of Production Example 1A were directly added to the oil phase or the aqueous phase of the conditioner in accordance with the formulation of Table 2.

In addition, the vesicle dispersion liquid of each of Production Examples 1A to 7A or Comparative Production Example 1B was formulated based on the total amount of the component (A1) and the component (A5) in the conditioner.

*1~9 in Tables 2~4 are as described above. *10~17 in Tables 2~4 are as follows.

* 10: Highly polymerized dimethyl polyoxane

* 11: Polyoxyethylene (3) monooctyl ether (SOFCARE GP-1, Kao Co., Ltd.)

* 12: (hydroxy stearic acid / stearic acid / rosin acid) dipentaerythritol ester (Cosmol 168ARV, Hengguan Oil Industry Co., Ltd.)

* 13: N-(3-(dimethylamino)propyl)stearylamine (NIKKOL Amidoamine MPS, Nikko Chemicals Co., Ltd.)

* 14: N-(3-(dimethylamino)propyl) behenamide (AMIDET APA-22, Kao Corporation)

* 15: Hawthorn-based trimethylammonium chloride (Quartamin 2285E, Kao Co., Ltd.)

* 16: Stearyloxypropyl ammonium chloride (Quartamin E80K, Kao Co., Ltd.)

* 17: Cetyltrimethylammonium chloride (Quartamin 60W, Kao Co., Ltd.)

(feeling evaluation)

The hair of a Japanese woman who had been subjected to one-time flat perm and two bleaching treatments was used as damaged hair, and each of 20 g (length: 15 to 20 cm, average diameter: 80 μm) of hair bundles was washed with 2 g of the above-mentioned standard shampoo. The hair bundle was applied with 2 g of the conditioner shown in Table 2, and fully fused to the entire hair, and rinsed under a flow of about 40 ° C for about 30 seconds, and then dried with a towel and fully made with a hair dryer. Dry ground. The sensory evaluation was carried out by repeating the above procedure seven times and using one week.

. Standard shampoo formula (pH 7.0)

"Flushing feeling when applying hair conditioner", "smoothness when hair conditioner is rinsed", "smoothness after drying, smoothness (smoothness)", "after drying" Evaluation was made without "sticky feeling", "tightness after drying", and "softness after drying". The evaluation was performed by 5 people in 5 grades, and the total value of the evaluation was shown.

Embodiments of the invention are all good results. Comparative Example 1 and Comparative Examples 8 to 11 in which the vesicle particle diameter did not satisfy the vesicle particle diameter in the hair cosmetic of the present invention, Comparative Example 2 in which the vesicle was not formulated, and the preparation of the vesicle without forming the vesicle structure In Comparative Examples 4 to 6 which were directly formulated in the hair cosmetic, the fusion feeling at the time of application, the smoothness during rinsing, the smoothness after drying, and the feeling of no stickiness were poor. In Comparative Example 3 and Comparative Example 12 in which the aromatic alcohol was not blended, the fusion feeling at the time of application, the smoothness during rinsing, the smoothness after drying, and the non-stickiness were slightly inferior, and the lack of uniformity after drying was observed. Softness. Comparative Example 7 containing no organic acid was inferior in terms of fusion feeling upon application, smoothness after drying, and no stickiness, especially in the absence of uniformity and softness after drying.

(evaluation benchmark) "The sense of fusion when applying conditioner"

5: The integration is very good

4: better integration

3: The fusion is slightly better

2: Poor integration

1: poor integration

"Smoothness when conditioner is rinsed"

5: Very smooth

4: Smooth

3: slightly smooth

2: Not very smooth

1: not smooth

"Goodness and smoothness (smoothness) after smoothness after drying"

5: Very smooth

4: Smoothness

3: Slightly smooth

2: Not very smooth

1: very no smoothness

"No sticky feeling after drying"

5: Very non-sticky

4: no sticky feeling

3: Not very sticky

2: Slightly sticky

1: There is a sticky feeling

"Neatness after drying"

5: Very neat

4: Neat

3: Slightly neat

2: Slightly difficult to handle

1: difficult to handle

"Softness after drying"

5: Very soft

2: Slightly sticky

1: There is a sticky feeling

"Neatness after drying"

5: Very neat

4: Neat

3: Slightly neat

2: Slightly difficult to handle

1: difficult to handle

"Softness after drying"

5: Very soft

4: soft

3: Slightly soft

2: Not very soft

1: not soft

The application is based on the priority of Japanese Patent Application No. 2012-160029, filed on Jul.

Claims (11)

A hair cosmetic comprising the following components (A), (B), (C), (D) and water: (A) the continuous phase is an aqueous phase, and comprises (A1) a carbon number of 14 or more and 24 or less Chain or branched chain fatty acid, (A2) tertiary amine compound, and (A3) organic acid having carbon number of 1 or more and 8 or less, and vesicle structure (B) having a mean particle diameter of 5 μm or more and 50 μm or less The agent (C) aromatic alcohol (D) is an organic acid having 1 or more carbon atoms and 10 or less carbon atoms. The hair cosmetic according to claim 1, wherein the vesicle structure of the component (A) further contains a polyol as a component (A4). The hair cosmetic according to claim 1 or 2, wherein the vesicle structure of the component (A) further contains a fatty acid ester having 21 or more carbon atoms as the component (A5). The hair cosmetic of claim 3, wherein the mixture of the components (A1) and (A5) in the vesicle structure of the component (A) has a freezing point of 30 ° C or more and 55 ° C or less. The hair cosmetic according to claim 1 or 2, wherein the acid equivalent of the total of the above component (A1) and the component (A3) in the vesicle structure of the component (A) is relative to the base of the component (A2) The ratio of the equivalents is 0.25 or more and 4 or less. The hair cosmetic of claim 1 or 2, wherein the total content of the component (A1), the component (A2), and the component (A3) in the vesicle structure of the component (A) is 1% by mass. The above is 20% by mass or less. The hair cosmetic of claim 3 or 5, wherein the total mass ratio of the component (A1) and the component (A5) to the hair cosmetic as a whole is 0.01% by mass or more and 5% by mass or less. The hair cosmetic of claim 1 or 2, which further comprises (E1) a fat having a carbon number of 20 or less An acid ester, an (E2) aliphatic alcohol or a mixture of these as component (E). A hair cosmetic according to claim 1 or 2, which further comprises a polysiloxane as component (F). A method for producing a hair cosmetic comprising the steps of: (A) a continuous phase as an aqueous phase, a linear or branched fatty acid having a carbon number of 14 or more and 24 or less, and a (A2) tertiary amine compound comprising a component (A1) And (A3) a step of a vesicle structure having an organic acid having a carbon number of 1 or more and 8 or less and an average particle diameter of 5 μm or more and 50 μm or less; and a vesicle structure in which the component (A) is mixed, and (B) a cation a surfactant, (C) an aromatic alcohol, and (D) a step of an organic acid having a carbon number of 1 or more and 10 or less; and the above step of preparing the vesicle structure of the above component (A) comprises the following steps: a step of melting an oil phase containing the above component (A1), the above (A2), and the above (A3) at a temperature higher than a melting point of the oil phase; and a second step of melting the same in the first step The aqueous phase is subjected to phase inversion emulsification while adding an aqueous phase; and in the third step, the mixture obtained in the above second step is cooled. The method for producing a hair cosmetic according to claim 10, wherein the step of preparing the vesicle structure of the component (A) comprises the step of one or more selected from the group consisting of: a step of adding a polyol as the component (A4) to the oil phase; and adding the above-mentioned aqueous phase in an amount of 1 part by mass or more of the melted oil phase to the oil phase in the second step, and then separately or together with the water The step of adding the polyol as the component (A4) together; and adding the polyol as the component (A4) to the mixture in the third step.