TWI702053B - Hair cosmetic composition - Google Patents

Abstract

The present invention is a hair cosmetic comprising: component (A) cationic surfactant 0.1% by mass or more and 20% by mass or less; (B) succinic acid or its salt 0.1% by mass or more and 5% by mass (acid (C) Naphthalenesulfonic acid or its salt 0.05% by mass or more and 5% by mass or less (content in terms of acid); (D) Dipropylene glycol 5% by mass or more and 30% by mass or less; and water.

Description

Hair cosmetics

The present invention relates to a hair cosmetic.

Hair is damaged by daily shampooing or grooming, the heat of the hair dryer, etc. In recent years, it has become common to freely change the hair color (dyeing, etc.), change the hair style by chemical treatment (perm, etc.) to change the appearance of the hair and enjoy the fun of dressing. If the frequency of this treatment increases, it will damage the hair accumulatively, resulting in hair splitting or hair breakage, or scaly cuticle, resulting in exposure of the epidermis, or dry hair tips. Therefore, it is required to have a moist and moist feeling, a dry and refreshing smooth and smooth combing feeling, and a soft touch up to the tips of the hair, etc., and daily hair care.

According to Patent Document 1 (Japanese Patent Laid-Open No. 2000-38322), although cationic surfactants are indispensable for improving the tactility of hair, on the other hand, there are cases where they cause peeling of the stratum corneum. (Upward) or swelling, damage to the surface of the hair, and reduce the gloss. Therefore, Patent Document 1 discloses that when a cationic surfactant and an organic acid or a salt thereof are combined to treat the hair, it is possible to suppress the uplift and swelling of the stratum corneum.

In Patent Document 2 (Japanese Patent Laid-Open No. 2005-187400), as a technique for solving the problem of greatly reducing the amount of peeling of the stratum corneum by reducing the friction of the hair during shampooing, a technique including Anti-angle of liquid crystal structure, organic acid, protein and specific dimethyl polysiloxane containing cationic surfactant and specific oily ingredients Hair cosmetics for layer peeling.

In Patent Document 3 (Japanese Patent Laid-Open No. 2007-63197), as a technology for solving the problem of imparting a good care feeling to dyed hair and exhibiting a sufficient fading inhibitory effect, it is described as a technique containing Cationic surfactants, specific higher alcohols and sugars are oil-in-water emulsions for hair cosmetics.

In addition, in Patent Document 4 (Japanese Patent Laid-Open No. 2012-31128), as a technique for solving the problem of making the top of the head bouffant and obtaining a well-aligned hairstyle, it is described that there are four specific levels. A hair cosmetic of ammonium or its salt, specific ether type tertiary amine or its salt, specific branched fatty acid or its salt, aromatic sulfonate and water.

[Prior Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 2000-38322

[Patent Document 2] Japanese Patent Laid-Open No. 2005-187400

[Patent Document 3] Japanese Patent Laid-Open No. 2007-63197

[Patent Document 4] Japanese Patent Laid-Open No. 2012-31128

The present invention provides a hair cosmetic containing the following ingredients (A) to (D) and water.

(A) Cationic surfactant 0.1% by mass or more and 20% by mass or less

(B) Succinic acid or its salt 0.1% by mass or more and 5% by mass or less (content in terms of acid)

(C) Naphthalenesulfonic acid or its salt 0.05% by mass or more and 5% by mass or less (content in terms of acid)

(D) Dipropylene glycol 5 mass% or more and 30 mass% or less

In addition, the present invention provides a hair treatment method in which the hair cosmetic of the present invention is applied to hair and rinsed, and a hair treatment method in which the hair cosmetic of the present invention is applied to hair and dried.

In daily hair care behaviors, hair extension is exerted due to the use of grooming, blowing, perming, etc. Regarding the hair, it is thought that if the hair is stretched, the phenomenon of the stratum corneum curling up (upturning) is observed, the adhesion between the stratum corneum is weakened, and peeling is promoted. Therefore, there is a need for a hair cosmetic that can suppress upturning and stratum corneum peeling even when a force such as extending hair is applied.

In this respect, Patent Document 1 discloses that the cationic surfactant and a specific acid act on the hair to inhibit the upturn of the stratum corneum, but there is improvement in the aspect of suppressing the upturning of the hair when extending. Room.

In addition, Patent Documents 2 to 4 are not based on the viewpoint of suppressing peeling of the stratum corneum when the hair is stretched, and there is still room for improvement in obtaining this effect.

The present invention was made in view of the actual situation, and provides a hair cosmetic that suppresses the peeling of the stratum corneum when the hair is stretched and improves the gloss, neatness and moisturizing feeling after treatment.

According to the hair cosmetic of the present invention, it is possible to suppress the uplift of the stratum corneum when hair is stretched, and to improve the gloss, neatness, and moisturizing feeling after treatment.

Hereinafter, specific examples of each component will be described for the embodiment of the present invention. In addition, each component can be used individually or in combination of 2 or more types.

In addition, in this specification, the pH value means the measured value (glass electrode measurement method) when diluted 20 times at 25°C.

(Ingredient (A))

Component (A) is a cationic surfactant. Component (A) can use 1 type or 2 or more types.

As a component (A), a tertiary amine compound or its salt, and a quaternary ammonium salt are mentioned, for example.

Among them, as tertiary amine compounds or salts thereof, for example, those represented by the following general formula (1) can be cited.

[化1]

(In the above general formula (1), R ¹ represents a functional group represented by -O-, -OCO-, -COO- or -CONH- with a total carbon number of 8 or more and 35 or less, or can be substituted by -OH Linear or branched alkyl, alkenyl, or aliphatic oxy (polyethoxy) ethyl, R ² and R ³ represent alkyl or hydroxyalkyl with carbon number 1 or more and 22 or less, or total Add polyoxyethylene group with molar number less than 10, R ² and R ³ can be the same or different)

As the tertiary amine compound represented by the general formula (1), a salt can be used to form a tertiary amine with an organic acid, or an acid can be blended into the hair cosmetic of this embodiment and combined with a pH adjuster Salt is formed in the composition. Examples of the acid include acids having short-chain alkyl groups such as alkyl phosphoric acid, alkyl sulfonic acid, and alkyl sulfuric acid; acidic amino acids such as L-glutamic acid and L-aspartic acid; and pyroglutamine Acids; aromatic acids such as benzoic acid and p-toluenesulfonic acid; hydroxy acids such as glycolic acid, lactic acid, glyceric acid, gluconic acid, pantothenic acid, malic acid, tartaric acid, and citric acid; and acetic acid. Among them, in terms of providing moisturizing and softening effects on hair, organic acids are preferred, acidic amino acids, pyroglutamic acids, and hydroxy acids are more preferred, and hydroxy acids are more preferred.

In this embodiment, with regard to the content of the organic acid, from the viewpoint of maintaining the lubricity of the hair, the amine equivalent of the component (A) is preferably 1 mol times or more and 10 mol times or less, more preferably It is 1 mol times or more and 6 mol times or less.

As a more specific example of the component (A), at least any one of the following tertiary amine compounds (i) to (iii) and salts thereof can be cited.

(i) Hydroxy ether alkylamine or its salt

For example, the compound represented by the following general formula (2) and its salt are mentioned.

[化2]

(In the above general formula (2), R ⁴ represents a linear or branched alkyl or alkenyl group having 6 or more carbon atoms and 24 or less, and R ⁵ and R ^{6 are the} same or different, and represent a carbon number 1 or more and 6 or less Alkyl group or -(AO) _f H (A represents an alkylene group having a carbon number of 2 or more and 4 or less, f represents a number of 1 or more and 6 or less, and f A may be the same or different, and their arrangement is arbitrary). Represents a number from 1 to 5)

Specifically, hexadecyloxy (2-hydroxypropyl) dimethylamine and its salt, and stearyloxy (2-hydroxypropyl) dimethylamine and its salt are mentioned.

(ii) Etheramine or its salt

For example, the compound represented by the following general formula (3) and its salt are mentioned.

(In the above general formula (3), R ⁷ represents a linear or branched alkyl or alkenyl group having 6 or more carbon atoms and 24 or less, and R ⁸ and R ^{9 are the} same or different, and represent a carbon number of 1 or more and 6 or less Alkyl group or -(AO) _g H (A represents an alkylene group with a carbon number of 2 or more and 4 or less, g represents a number of 1 or more and 6 or less, g A may be the same or different, and their arrangement is arbitrary))

Specifically, N,N-dimethyl-3-hexadecyloxypropylamine and its salt, N,N-dimethyl-3-octadecyloxypropylamine and its salt can be mentioned.

(iii) Alkylamide amine or its salt

For example, the compound represented by the following general formula (4) and its salt are mentioned.

(In the above general formula (4), R ¹⁰ represents an aliphatic hydrocarbon group with a carbon number of 11 or more and 23 or less, R ¹¹ and R ^{12 are the} same or different, and represent an alkyl group with a carbon number of 1 or more and 4 or less, and n represents 2 or more and 4 or less)

Specifically, N-(3-(dimethylamino)propyl)behenamide and its salts, N-(3-(dimethylamino)propyl)stearylamine and Its salt.

The preferred component (A) selected from the above-mentioned tertiary amine compounds and their salts is preferably (ii) ether amine or its salt, and (iii) alkane from the viewpoint of lubricity during application and washing. Amidoamine or its salt.

Among them, (ii) etheramine or its salt is more preferred, and N,N-dimethyl-3-hexadecyloxypropylamine or its salt, N,N-dimethyl-3-dec Octaalkoxypropylamine or its salt.

In addition, specific examples of the quaternary ammonium salt used as the component (A) include (iv) alkyl trimethyl ammonium salt, (v) alkoxy alkyl trimethyl ammonium salt, and (vi) two Alkyl dimethyl ammonium salt. Hereinafter, specific examples of (iv) to (vi) above are illustrated.

(iv) Alkyl trimethylammonium salt

Examples of the alkyl trimethylammonium salt include those represented by the following general formula (5).

_{^{R 13 -N + (CH 3)}} 3 X - (5)

(In the above general formula (5), R ¹³ represents an alkyl group with a carbon number of 12 or more and 22 or less, and X ^- represents a halide ion such as chloride ion and bromide ion)

Specifically, cetyl trimethyl ammonium chloride, stearyl trimethyl chloride Ammonium, behenyl trimethyl ammonium chloride, etc.

(v) Alkoxyalkyl trimethylammonium salt

As an alkoxyalkyl trimethylammonium salt, what is represented by the following general formula (6) is mentioned, for example.

^{R 14 -OR 15 -N + (CH} 3) 3 X - (6)

(In the above general formula (6), R ¹⁴ represents an alkyl group with a carbon number of 12 or more and 22 or less, R ¹⁵ represents an ethylene or propylene group that may be substituted by a hydroxyl group, and X ^- is the same as above)

Specifically, stearyloxypropyltrimethylammonium chloride, stearyloxyethyltrimethylammonium chloride, stearyloxyhydroxypropyltrimethylammonium chloride, etc. are mentioned.

(vi) Dialkyl dimethyl ammonium salt

Examples of the dialkyldimethylammonium salt include those represented by the following general formula (7).

_{^{(R 16) 2 N + (}} CH 3) 2 X - (7)

(In the above general formula (7), R ^{16 is} each independent and represents an alkyl group or benzyl group having 12 or more and 22 or less carbon atoms, and X ^- is the same as above)

Specifically, distearyl dimethyl ammonium chloride etc. are mentioned.

As a preferable component (A) selected from the above-mentioned quaternary ammonium salts, those having an alkyl group having 16 carbon atoms can be cited. That is, in the above general formulas (5) to (7), R ¹³ , R ¹⁴ or R ^{16 is} preferably an alkyl group having 16 carbon atoms, more preferably cetyl trimethylammonium salt, and more Preferably it is cetyltrimethylammonium chloride.

Component (A) can be used singly, or two or more of them can be used in combination. In addition, regarding its content in hair cosmetics, from the point of view of good lubricity and combability from the time of application to after drying, The content is 0.1% by mass or more, preferably 0.2% by mass or more, more preferably 0.5% by mass or more, still more preferably 1% by mass or more, 20% by mass or less, preferably 15% by mass relative to the entire hair cosmetic % Or less, more preferably 10% by mass or less, and still more preferably 5% by mass or less.

In addition, in the above component (A), the content of cetyltrimethylammonium salt is preferably 50% by mass Above, more preferably 80% by mass or more, and more preferably 100% by mass or less.

(Ingredient (B))

Next, the component (B) will be described. Component (B) is succinic acid or its salt.

Examples of components constituting the salt include alkali metals such as sodium and potassium, ammonium, cations derived from alkanolamines such as monoethanolamine, diethanolamine, and triethanolamine, and basic amine groups derived from arginine and lysine Acid cations, etc.

In this embodiment, by combining the component (B) and the following component (C) in the hair cosmetic, it is possible to effectively suppress the peeling of the stratum corneum when the hair is stretched. Furthermore, by using the component (B) in combination with the following components (C) and (D), peeling of the stratum corneum can be suppressed, and the gloss, neatness, and moistness after treatment can be improved.

Regarding the content of the component (B) in the hair cosmetic, from the viewpoint of suppressing the peeling of the stratum corneum during hair extension and the viewpoint of imparting gloss to the hair, it is 0.1% by mass or more in terms of acid relative to the entire hair cosmetic , Preferably 0.2% by mass or more, more preferably 0.3% by mass or more, still more preferably 1.0% by mass or more, and still more preferably 1.4% by mass or more. In addition, from the viewpoint of further improving the stability of the hair cosmetic, the content of the component (B) relative to the entire hair cosmetic is 5% by mass or less, preferably 4% by mass or less in terms of acid, and more It is preferably 3.5% by mass or less, and more preferably 3% by mass or less.

(Ingredient (C))

Component (C) is naphthalenesulfonic acid or its salt.

Examples of components constituting the salt include alkali metals such as sodium and potassium, ammonium, cations derived from alkanolamines such as monoethanolamine, diethanolamine, and triethanolamine, and basic amine groups derived from arginine and lysine Acid cations, etc.

As a component (C), β-naphthalenesulfonic acid or its salt is mentioned more specifically.

Regarding the content of the component (C) in the hair cosmetic, from the viewpoint of enhancing the peeling effect of the stratum corneum when hair extension is suppressed together with the component (B), it is 0.05 mass in terms of acid relative to the entire hair cosmetic % Or more, preferably 0.1% by mass or more, more preferably 0.2% by mass % Or more, more preferably 0.4% by mass or more. In addition, from the viewpoint of reducing the dryness of hair, the content of component (C) relative to the entire hair cosmetics is 5% by mass or less in terms of acid, preferably 3% by mass or less, more preferably 2% by mass %the following.

In addition, in the hair cosmetics of the present embodiment, the mass ratio ((B)/(C)) of the mass of the component (B) in terms of acid to the mass of the component (C) in terms of acid is used From the viewpoint of further improving the effect of inhibiting stratum corneum peeling during hair extension, it is preferably 0.1 or more, more preferably 0.2 or more, still more preferably 0.5 or more, still more preferably 1.0 or more, particularly preferably 2.5 or more, and , Preferably 20 or less, more preferably 15 or less, and still more preferably 12 or less.

(Ingredients (D))

Component (D) is dipropylene glycol.

Regarding the content of the ingredient (D) in the hair cosmetics, from the viewpoints of improving the touch of the agent during application and improving the moisturizing feeling after treatment, it is 5 mass% or more relative to the entire hair cosmetics. It is preferably 10% by mass or more, more preferably 15% by mass or more, furthermore, 30% by mass or less, preferably 27% by mass or less, and more preferably 25% by mass or less.

In addition, in the hair cosmetics of the present embodiment, the mass ratio of the total of the mass of component (B) in terms of acid and the mass of component (C) in terms of acid to the mass of component (D) ((( B)+(C))/(D)), from the viewpoint of suppressing the peeling of the stratum corneum during hair extension and improving the moist feeling after treatment, it is preferably 0.01 or more, more preferably 0.02 or more, and more It is preferably 0.04 or more, more preferably 3 or less, more preferably 2 or less, still more preferably 1 or less, and still more preferably 0.5 or less.

More specifically, the hair cosmetic of this embodiment is an aqueous hair cosmetic.

That is, the hair cosmetic of this embodiment further contains water. As water, ion-exchange water, distilled water, etc. can be used.

The content of water in the hair cosmetic can be, for example, the remaining part of the ingredients other than the water in the hair cosmetic. Also, with regard to the content of water, it is relatively It is preferably 50% by mass or more, and more preferably 60% by mass or more. Moreover, it is preferably 95% by mass or less, more preferably 90% by mass or less, and still more preferably 85% by mass or less.

Next, the pH value of hair cosmetics will be described.

In the hair cosmetics of this embodiment, from the viewpoint of maximizing the effect of inhibiting stratum corneum peeling during hair extension, the pH value at 25°C when diluted to 20 times with water is preferably 4 or more, and more It is preferably 5 or more, more preferably 7 or less, and more preferably 6.5 or less.

In order to obtain the desired effects for the improvement of the cleaning performance and the care after drying, the hair cosmetics of this embodiment may further contain anionic surfactants, nonionic surfactants, amphoteric surfactants, etc. Surfactants, silicones, and other oils other than ingredient (A).

In addition, a pH adjuster can also be blended in the hair cosmetic of this embodiment. Examples of such a pH adjuster include organic acids other than the aforementioned components (B) and (C), and organic carboxylic acids such as lactic acid, malic acid, and citric acid may also be used. In addition, as other pH adjusting agents, alkalis such as sodium hydroxide, potassium hydroxide, and ammonium chloride can be used together with these organic acids.

In the hair cosmetics of this embodiment, in addition to the above-mentioned ingredients, the ingredients used in normal hair cosmetics can be appropriately formulated according to the desired effect. Examples of such optional ingredients include anti-dandruff agents, vitamins, fungicides, anti-inflammatory agents (glycyrrhizic acid, glycyrrhetic acid, and derivatives thereof), preservatives, chelating agents, and moisturizers (sorbitol , Panthenol, etc.), colorants (dyes, pigments, etc.), extracts (polar solvent extracts of trees, proteins or their hydrolysates obtained from shells or pearls with nacre, from honey, royal jelly, silk , Protein obtained from whey or its hydrolysate, protein-containing extract obtained from the seeds of legumes, ginseng extract, rice germ extract, fucus extract, aloe extract, lotus extract, pomegranate Extract, briar extract, chamomile extract, licorice extract, moon peach leaf extract, green algae extract, chamomile extract, olive leaf extract, raspberry extract, lemon extract, lemongrass extract, fan Rosemary extract, acerola extract, grapefruit extract, berry extract, apple extract, starfruit leaf extract Extract, rosehip extract, grapefruit extract, prune extract, bamboo leaf extract, jojoba leaf extract, Hemerocallis fulva flower extract, hollyhock extract, okra extract Arbutus extract, etc.), pearlescent agents such as titanium oxide, fragrances, ultraviolet absorbers, antioxidants, shea butter, rose water, orange oil, arborvitae oil, lavender oil, calyx pear oil, Morocco Argan oil, jojoba oil, tea tree oil, etc.

Next, the manufacturing method of hair cosmetics is demonstrated.

In this embodiment, the hair cosmetics can be manufactured by, for example, mixing components (A) to (D) and appropriate other components in a specific order and dissolving or dispersing them in water.

That is, the method for producing hair cosmetics of this embodiment includes, for example, the steps of: uniformly mixing and dissolving components (B), (C), and (D) in water heated to about 25 to 80°C, and then adding the components (A) Mix homogeneously and cool to room temperature.

The hair cosmetic material obtained in this embodiment contains the above-mentioned ingredients (A) to (D) in a specific range, so for example, even during the use process such as grooming, blowing, perming, etc., the physical force of hair extension is increased. It can also inhibit the uplift of the stratum corneum, and improve the gloss, neatness and moisturizing feeling after treatment.

More specifically, in the present embodiment, by using the components (B) and (C) in combination, it is possible to effectively suppress the peeling of the stratum corneum when the hair is stretched. Therefore, for example, it is possible to maintain the hair in a healthy and normal state, or reduce the deterioration of the touch.

In addition, in the present embodiment, by using the components (B) to (D) in combination, it is possible to simultaneously achieve the effect of inhibiting peeling of the stratum corneum when the hair is stretched and the effect of improving the moistness after treatment.

The form of the hair cosmetic of this embodiment is not limited, and a liquid form, a gel form, etc. can be appropriately selected, and a liquid form using water, or water and lower alcohol as a solvent is preferable.

In addition, the hair cosmetics of the present embodiment are, for example, applied to the hair and rinsed for the user. More specifically, hair conditioner, conditioner, hair care lotion (hair treatment), hair mask, etc. to be used in the bathroom.

In addition, the hair treatment method using the hair cosmetic of this embodiment is, for example, applying the hair cosmetic to the hair and rinsing it. In addition, a hair treatment method in which the hair cosmetic of this embodiment is applied to washed hair and dried without rinsing.

Furthermore, the method of using the hair cosmetics of this embodiment for hair conditioning treatment can be set to include the steps of: applying a hair cleanser to the hair and rinsing; and after this step, applying the hair cosmetics of this embodiment After applying on the hair, apply other hair cosmetics and rinse. At this time, after applying the hair cosmetic of this embodiment to the hair and before applying other hair cosmetics, the hair cosmetic of this embodiment may be rinsed, or not, preferably not. It is preferable to apply other hair cosmetics and leave it for 30 seconds or more and 10 minutes or less and rinse. Here, the other hair cosmetics specifically refer to emulsified hair cosmetics containing cationic surfactants, aliphatic alcohols having 12 to 24 carbon atoms, oils, and water.

The hair cosmetic of this embodiment is applied to hair and treated as described above, and can suppress stratum corneum peeling when hair is stretched.

Above, the embodiments of the present invention have been described, but these are examples of the present invention, and various configurations other than the above may be adopted.

With regard to the above-mentioned embodiments, the preferred aspects of the present invention are further disclosed below.

<1> A hair cosmetic comprising the following ingredients (A) to (D) and water:

(A) Cationic surfactant 0.1% by mass or more and 20% by mass or less

(B) Succinic acid or its salt 0.1% by mass or more and 5% by mass or less (content in terms of acid)

(C) Naphthalenesulfonic acid or its salt 0.05% by mass or more and 5% by mass or less (content in terms of acid)

(D) Dipropylene glycol 5 mass% or more and 30 mass% or less

<2> The hair cosmetics described in the above <1>, among which the hair cosmetics are The mass ratio ((B)/(C)) of the mass of component (B) in terms of acid to the mass of component (C) in terms of acid ((B)/(C)) is preferably 0.1 or more, more preferably 0.2 or more, and still more preferably 0.5 or more, more preferably 1.0 or more, particularly preferably 2.5 or more, more preferably 20 or less, more preferably 15 or less, and still more preferably 12 or less.

<3> The hair cosmetics described in the above <1> or <2>, in which the total of the acid-based mass of ingredient (B) and the acid-based mass of ingredient (C) in the hair cosmetic is relative to the ingredient The mass ratio (((B)+(C))/(D)) of the mass of (D) is preferably 0.01 or more, more preferably 0.02 or more, still more preferably 0.04 or more, and more preferably 3 or less, It is more preferably 2 or less, still more preferably 1 or less, and still more preferably 0.5 or less.

<4> The hair cosmetic described in any one of the above <1> to <3>, wherein the component (A) is preferably selected from the group consisting of tertiary amine compounds and their salts and quaternary ammonium salts One or more; more preferably one or more selected from the group consisting of tertiary amine compounds and their salts and quaternary ammonium salts represented by the above general formula (1); more preferably selected from (i) hydroxyl Ether alkyl amine and its salt, (ii) ether amine and its salt, (iii) alkyl amine amine and its salt, (iv) alkyl trimethyl ammonium salt, (v) alkoxy alkyl trimethyl One or more of the group consisting of base ammonium salt and (vi) dialkyl dimethyl ammonium salt; more preferably selected from the compounds represented by the above general formulas (2) to (4) and their salts, And at least one of the group consisting of those represented by the above general formulas (5) to (7); more preferably selected from the group consisting of hexadecyloxy (2-hydroxypropyl) dimethylamine and its salts, Octadecyloxy (2-hydroxypropyl) dimethylamine and its salts, N,N-dimethyl-3-hexadecyloxypropylamine and its salts, N,N-dimethyl- 3-octadecyloxypropylamine and its salts, N-(3-(dimethylamino)propyl) behenamide and its salts, N-(3-(dimethylamino) Propyl) stearyl amine and its salts, cetyl trimethyl ammonium chloride, stearyl trimethyl ammonium chloride, behenyl trimethyl ammonium chloride, stearyl oxypropyl chloride Trimethyl ammonium, stearyl oxyethyl trimethyl ammonium chloride, stearyl oxy hydroxypropyl trimethyl ammonium chloride and distearyl dimethyl ammonium chloride One or more in the group; and more preferably selected from N,N-dimethyl-3-hexadecyloxypropylamine and its salt, N,N-dimethyl-3-octadecyloxy One or more of the group consisting of propyl amine and its salts, and quaternary ammonium salts having an alkyl group with 16 carbons; more preferably, quaternary ammonium salts with an alkyl group having 16 carbons; in particular; Preferably it is cetyltrimethylammonium chloride.

<5> The hair cosmetic as described in any one of the above <1> to <4>, wherein the content of the component (A) in the hair cosmetic is 0.1% by mass or more relative to the entire hair cosmetic, preferably 0.2 % By mass or more, more preferably 0.5% by mass or more, still more preferably 1% by mass or more, furthermore, 20% by mass or less, preferably 15% by mass or less, more preferably 10% by mass or less, and still more preferably 5 Less than mass%.

<6> The hair cosmetic described in any one of the above <1> to <5>, wherein the content of the component (B) in the hair cosmetic in terms of acid is 0.1% by mass or more with respect to the entire hair cosmetic, Preferably it is 0.2% by mass or more, more preferably 0.3% by mass or more, still more preferably 1.0% by mass or more, still more preferably 1.4% by mass or more, furthermore, 5% by mass or less, preferably 4% by mass or less, More preferably, it is 3.5% by mass or less.

<7> The hair cosmetic described in any one of the above <1> to <6>, wherein the content of the component (C) in the hair cosmetic in terms of acid is 0.05% by mass or more relative to the entire hair cosmetic, It is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, still more preferably 0.4% by mass or more, furthermore, 5% by mass or less, preferably 3% by mass or less, and more preferably 2% by mass or less.

<8> The hair cosmetic according to any one of the above <1> to <7>, wherein the content of the component (D) in the hair cosmetic is 5% by mass or more relative to the entire hair cosmetic, preferably 10 Mass% or more, more preferably 15 mass% or more, and 30 mass% or less, preferably 27 mass% or less, and more preferably 25 mass% or less.

<9> The hair cosmetics according to any one of the above <1> to <8>, wherein the hair The content of water in the hair cosmetics is preferably the remainder of the components other than the water in the hair cosmetics, and, relative to the entire hair cosmetics, it is more preferably 50% by mass or more, and more preferably 60% by mass or more And, it is more preferably 95% by mass or less, still more preferably 90% by mass or less, and still more preferably 85% by mass or less.

<10> The hair cosmetic as described in any one of the above <1> to <9>, wherein the pH value at 25°C when the hair cosmetic is diluted to 20 times with water is preferably 4 or more, more preferably It is 5 or more, more preferably 7 or less, more preferably 6.5 or less.

<11> The method for producing hair cosmetics as described in any one of <1> to <10> above, which comprises the steps of heating ingredients (B), (C) and (D) to 25~80°C The left and right waters are uniformly mixed and dissolved; and after the above steps of dissolving, the component (A) is added, mixed uniformly and cooled to room temperature.

<12> A hair treatment method, which is a method of applying the hair cosmetics described in any one of the above <1> to <10> to the hair and rinsing the hair; and preferably comprising the steps of: applying a hair cleanser Apply to the hair and rinse; and after this step, apply the hair cosmetics described in any one of the above <1> to <10> to the hair, then apply other hair cosmetics and rinse; even better To include the following steps: apply a hair cleanser to the hair and rinse; and after this step, apply the hair cosmetics described in any one of the above <1> to <10> to the hair, and then apply it to the hair In the case of rinsing the hair cosmetics described in any one of the above <1> to <10>, apply other hair cosmetics and rinse them; and further preferably include the following steps: applying a hair cleanser to the hair and rinse; After this step, apply the hair cosmetics described in any one of the above <1> to <10> to the hair, and then, do not rinse the hair described in any one of the above <1> to <10> In the case of cosmetics, apply other hair cosmetics; and after applying other hair cosmetics, leave it for 30 seconds or more and 10 minutes or less and rinse; it is more preferable to include the following steps: apply hair cleanser to the hair And proceed Rinse; After this step, apply the hair cosmetics as described in any one of the above <1> to <10> to the hair, and then, without rinsing as described in any one of the above <1> to <10> In the case of hair cosmetics, apply other hair cosmetics; after applying other hair cosmetics, leave for more than 30 seconds and less than 10 minutes and rinse; and after the above steps of placing and rinse, extend the hair .

<13> A method for inhibiting stratum corneum peeling during hair extension, which is a method of applying the hair cosmetics described in any one of the above <1> to <10> to the hair and then rinsing; and preferably comprising The following steps: apply the hair cleanser to the hair and rinse; and after this step, apply the hair cosmetic described in any one of <1> to <10> above to the hair, and then apply other hair makeup It is more preferable to include the following steps: apply a hair cleanser to the hair and rinse; and after this step, apply the hair cosmetics described in any one of <1> to <10> above Hair, afterwards, without rinsing the hair cosmetics described in any one of the above <1> to <10>, apply other hair cosmetics and rinse them; and further preferably include the following steps: Apply to the hair and rinse; after this step, apply the hair cosmetics described in any one of the above <1> to <10> to the hair, and then, do not rinse as the above <1> to <10> Apply other hair cosmetics in the case of hair cosmetics described in any one of them; and after applying other hair cosmetics, leave for 30 seconds or more and 10 minutes or less and rinse; more preferably, it includes the following steps: Apply the hair cleanser to the hair and rinse; after this step, apply the hair cosmetics described in any one of the above <1> to <10> to the hair, and then do not rinse the hair as in the above <1> Apply other hair cosmetics to any of the hair cosmetics described in <10>; after applying other hair cosmetics, leave it for 30 seconds or more and 10 minutes or less and rinse; and leave it for and rinse After the above steps, the hair is extended.

<14> A use of the hair cosmetic as described in any one of the above <1> to <10>, which is used to inhibit stratum corneum peeling during hair extension.

<15> A use of the hair cosmetic described in any one of the above <1> to <10>, which is used to produce a cosmetic that inhibits stratum corneum peeling during hair extension.

[Example]

(Examples 1-9, Comparative Examples 1-9)

The hair cosmetics with the compositions shown in Table 1 and Table 2 were prepared according to the following methods and evaluated. The evaluation methods and evaluation criteria are shown below.

(Method of manufacturing hair cosmetics)

The ingredients (B) or (B'), (C) and (D) are mixed and dissolved in water heated to 60°C, and then the ingredient (A) is added to make it uniform and cooled to room temperature to obtain hair Cosmetic composition.

(Method of pH measurement)

The pH value is measured at 25°C using a pH meter (HM-30R type) manufactured by Toa DKK Corporation after diluting the sample with purified water to 20 times by mass, stirring and dissolving.

(Making of Evaluation Hair Bundle)

Using 5g of untreated Japanese hair, make a 25cm length hair bundle and prepare for bleaching.

The bleaching treatment is to use the Prettia foam bleaching made by Kao Corporation to highly bleach the above hair strands. Set the mixing ratio of 1 and 2 liquids to 1:2, the bath ratio of hair and the mixed liquid to 1:3, room temperature and immersion time 20 minutes . After the immersion treatment, it was washed with tap water at 40°C and dried with a towel, and then dried with a hair dryer. Those who have performed the series of treatments three times are referred to as "hair bundles for evaluation".

(How to deal with hair bundles for evaluation)

After soaking the evaluation hair bundle with tap water at 40°C, apply 0.5 g of the evaluation shampoo shown below, and rinse with tap water at 40°C after foaming for 30 seconds. its After that, it was dried with a towel and dried with a hair dryer for 3 minutes while applying a hand combing operation. Use it as "hair bundle for evaluation before treatment".

In addition, after soaking the evaluation hair bundle with 40°C tap water, apply 0.5 g of the evaluation shampoo shown below, and rinse with 40°C tap water after foaming for 30 seconds. 0.5 g of hair cosmetics of each example described in the table was applied to the hair bundle and left to stand for 5 minutes.

After that, the tufts were sufficiently rinsed with tap water at 40°C, then dried with a towel, combed by hand, and dried with a hair dryer for 3 minutes. Use it as "hair bundle for evaluation after treatment".

Formula of shampoo for evaluation (pH 7.0)

(Evaluation of inhibition of hair cuticle peeling during extension)

1. Randomly take out 5 hairs from the evaluation hair bundle after the above treatment, and shave the part 10cm~15cm away from the hair tip (hair length 5cm) with a razor. The invisible tape (manufactured by Scotch Co., Ltd.) was attached to the 0.5 cm part of the shaved hair by clamping it from top to bottom, and set it as a fixed part.

Then, for the shaved hair, grasp the fixed part and use a stretching speed of 0.1cm/sec with an elongation rate of 25% (the hair on the unattached part of the tape is stretched from 4cm before stretching to 5cm). The method extends along the axis of the hair. Keep the stretched hair out The mobile method uses a two-part adhesive to be fixed on a glass slide as a sample for measurement.

2. Using the above-mentioned sample for measurement, use a laser microscope (manufactured by KEYENCE, VK-8700) to measure the shape of the hair surface (measurement pitch: 0.1μm), and use the software on the sample to make a slope that originates from outside the hair (Caused by glass slides or invisible tape) Perform face slope correction (specify 3 points). After that, the average height Rc value (JIS B0601: 2001) as the roughness curve element of the JIS standard was calculated. As a calculation method, draw a straight line with a length of 200μm in the axial direction of the hair surface after the slope correction, and calculate the Rc value (μm) on the straight line on the software. Perform this operation on a randomly selected hair surface for a total of 5 times, and find the average value.

It is suggested that the larger the Rc value, the thicker the surface shape becomes, which promotes the peeling of the stratum corneum, and the smaller the value, the more suppressed the peeling of the stratum corneum.

(Sensory evaluation: shine after drying hair)

For the evaluation hair bundles after the above treatment, 10 professional sensory inspectors evaluated the "gloss", "cleanness" and "moistness" of the dried hair bundles according to the following criteria, and calculated the average score for each item .

(luster)

5: Compared with "hair bundle for evaluation before treatment", it is shiny

4: Compared with "hair bundle for evaluation before treatment", it is slightly shiny

3: Compared with the "hair bundle for evaluation before treatment", the gloss is roughly the same

2: Compared with "hair bundles for evaluation before treatment", slightly dull

1: Compared with the "hair bundle for evaluation before treatment", it is dull

(tidiness)

5: Compared with "hair bundle for evaluation before treatment", it has a neatness

4: Compared with the "hair bundle for evaluation before treatment", it is slightly neater

3: Compared with "hair bundles for evaluation before treatment", the neatness is roughly the same

2: Compared with the "hair bundle for evaluation before treatment", it is slightly less neat

1: Compared with "hair bundle for evaluation before treatment", there is no neatness

(Moisturizing)

5: Compared with "hair bundle for evaluation before treatment", it has a moist feeling

4: Compared with "hair bundle for evaluation before treatment", it has a slightly moisturizing feeling

3: Compared with "hair bundles for evaluation before treatment", the moist feeling is roughly the same

2: Compared with "hair bundles for evaluation before treatment", there is no moist feeling

1: Compared with "hair bundle for evaluation before treatment", no moist feeling

According to Table 1 and Table 2, regarding the hair bundles obtained by applying the hair cosmetics obtained in Examples 1-9, compared with the comparative examples, the effect of reducing the increase in the Rc value during extension and upturning, that is, suppressing the stratum corneum The effect of peeling, and the balance of the effects of gloss, neatness and moisturizing of the treated hair is more excellent.

(Example 10)

After soaking the evaluation hair tufts with tap water at 40°C, apply 0.5 g of the evaluation shampoo shown above, and rinse with tap water at 40°C after foaming for 30 seconds. After applying 0.5 g of the hair cosmetic described in Example 2 to the hair tufts, apply 0.5 g of the hair repairing milk of the formula shown below and let it stand for 5 minutes.

After that, the tufts were sufficiently rinsed with tap water at 40°C, then dried with a towel, combed by hand, and dried with a hair dryer for 3 minutes.

Formula of hair repair cream

The hair bundle obtained by the above treatment has the effect of reducing the increase in the Rc value during extension and upturning, that is, the effect of suppressing the peeling of the stratum corneum, and after treatment, compared with the treatment with only the hair cosmetic of Example 2 The hair's gloss, neatness and moisturizing effect are more balanced.

Claims (4)

A hair cosmetic comprising the following components (A) to (D) and water: (A) cationic surfactant 0.1% by mass or more and 20% by mass or less (B) succinic acid or its salt 0.1% by mass or more and 5 Mass% or less (content in terms of acid) (C) Naphthalenesulfonic acid or its salt 0.05 mass% or more and 5 mass% or less (content in acid) (D) Dipropylene glycol 5 mass% or more and 30 mass% or less, The mass ratio ((B)/(C)) of the mass of the above-mentioned component (B) in terms of acid to the mass of the above-mentioned component (C) in terms of acid of the hair cosmetic is 0.1 or more and 20 or less. A hair cosmetic comprising the following components (A) to (D) and water: (A) cationic surfactant 0.1% by mass or more and 20% by mass or less (B) succinic acid or its salt 0.1% by mass or more and 5 Mass% or less (content in terms of acid) (C) Naphthalenesulfonic acid or its salt 0.05 mass% or more and 5 mass% or less (content in acid) (D) Dipropylene glycol 5 mass% or more and 30 mass% or less, Among them, the mass ratio of the total of the mass of the above-mentioned component (B) in terms of acid and the mass of the above-mentioned component (C) in terms of acid to the mass of the above-mentioned component (D) (((B)+( C))/(D)) is 0.01 or more and 3 or less. The hair cosmetic of claim 1 or 2, wherein the above-mentioned component (A) is a quaternary ammonium salt having an alkyl group with a carbon number of 16. A hair treatment method, which is to apply the hair cosmetics of claim 1 or 2 to the hair and rinse it.