KR20190013563A - Hair-treating composition and method for treating hair - Google Patents

Abstract

The present invention provides a composition for improving moisture retention of hair and realizing at least one of actions on a cell membrane complex, and a method of treating hair using the composition. The composition for hair is a mixture of squalane and a liquid ester (I) represented by a following general formula (I): R^1COO-R^2. The method of treating hair uses the hair composition. In the general formula (I), R^1COO represents a saturated fatty acid residue having a carbon number of 12 or more and 18 or less, and R^2 represents a saturated hydrocarbon group having carbon atoms of 8 or more and 20 or less.

Description

[0001] HAIR-TREATING COMPOSITION AND METHOD FOR TREATING HAIR [0002]

TECHNICAL FIELD The present invention relates to a composition for hair to be used for washing treatments, non-washed treatments, hair cleansing agents and the like.

Hair is damaged by physical treatment such as brushing, a hair dryer, a thermal iron, a hair color, a permanent wave or the like, a heat treatment, or a chemical treatment. As a result of the damage, various changes such as deterioration of moisture retention of hair and deterioration of texture occur in the hair.

Numerous proposals for improving the hair caused by the damage have been disclosed. For example, Patent Documents 1 to 3 disclose proposals for improving the feeling of hair by a composition comprising squalane and a specific component.

Japanese Unexamined Patent Publication No. 6-135823 Japanese Patent Application Laid-Open No. 2003-267840 Japanese Patent Application Laid-Open No. 2003-327513

However, the patent document discloses that the composition for changing the feel of hair is evaluated in a sensory manner, and does not disclose a composition that improves actual moisture retention. In addition, although the cell membrane complex (CMC) in hair is said to be involved in moisture retention, there is no description on its action on CMC in the above patent documents.

In view of the above circumstances, it is an object of the present invention to provide a hair composition capable of realizing at least one of an improvement in moisture retention of hair and an action on a cell membrane complex, and a hair treatment method using the composition.

As a result of intensive studies conducted by the present inventors, it has been found out that the combination of squalane and a specific ester is suitable for improving the water retention of hair and increasing the thickness of the lipid layer (beta layer) in the cell membrane complex. It came to the following.

That is, the composition for hair according to the present invention is characterized by blending the following components (A) and (B).

(A) Squalane

(B) a liquid ester (I) represented by the following general formula (I)

R ¹ COO-R ² (I)

[In the general formula (I), R ¹ COO represents a saturated fatty acid residue having a carbon number of 12 or more and 18 or less, and R ² represents a saturated hydrocarbon group having a carbon number of 8 or more and 20 or less.

The composition for hair related to the present invention is, for example, a composition containing the liquid ester (I-1) represented by the following general formula (I-1) as the above-mentioned component (B).

R ³ COO-R ⁴ (I-1)

[In the general formula (I-1), R ³ COO represents a branched saturated fatty acid residue having a carbon number of 12 or more and 18 or less, and R ⁴ represents a branched saturated hydrocarbon group having a carbon number of 8 or more and 20 or less.

When the liquid ester (I-1) is blended with the composition for hair related to the present invention, the liquid ester (I-1) is obtained by dissolving, for example, 2-ethylhexyl isophthalate, 2-hexyldecyl isostearate, Stearic acid is the one or two or more kinds selected from saversearyl, and 2-octyldodecyl isostearate.

The composition for hair according to the present invention is, for example, compounded with the liquid ester (I-2) represented by the following general formula (I-2) as the component (B).

R ⁵ COO-R ⁶ (I-2)

[In the general formula (I-2), R ⁵ COO represents a linear saturated fatty acid residue having a carbon number of 12 or more and 18 or less, and R ⁶ represents a branched saturated hydrocarbon group having a carbon number of 8 or more and 20 or less.

When the liquid ester (I-2) is blended with the hair composition according to the present invention, the liquid ester (I-2) can be obtained, for example, by dissolving lauric acid, 2-ethylhexyl palmitate, 2-hexyldecyl palmitate, isostearyl palmitate, 2-ethylhexyl stearate, 2-ethylhexyl stearate, , And 2-hexyldecyl stearate.

The hair composition according to the present invention is used, for example, as a washing treatment, a non-washing treatment, or a hair cleansing agent.

The hair treatment method according to the present invention is characterized by using the hair composition according to the present invention.

According to the present invention, since squalane and a specific liquid ester are blended, it is possible to improve the water retention of the hair or to increase the thickness of the lipid layer (beta layer) in the cell membrane complex.

FIG. 1 is a graph showing the water evaporation rate after 30 minutes in hair treated with the hair composition of Example 1 or Comparative Examples 1 and 2, and untreated hair. FIG.
Fig. 2 is a graph showing the rate of water evaporation after 60 minutes in hair treated with the hair composition of Example 1 or Comparative Examples 1 and 2, and untreated hair. Fig.
3 is a graph showing the thickness of the? Layer in CMC of bleached and hair-treated hair, bleached hair, and untreated hair.
Fig. 4 is a graph showing the thickness of the delta layer in CMC of bleached and hair-treated hair, bleached hair, and untreated hair.

The present invention is described below based on embodiments of the present invention.

The hair composition according to the present embodiment is obtained by blending the following components (A) and (B).

(A) Squalane

(B) Latex Liquid Ester (I)

In addition, as long as it is practically acceptable, a raw material blended in a known hair composition may be further blended.

The water-retaining property of the hair is improved when both of the components (A) and (B) are blended, as compared with the combination of both. It has also been confirmed that the thickness of the lipid layer (? Layer) in the hair cell membrane complex (CMC) is increased by the combination of both components (A) and (B). It is considered that the improvement of the former water retention performance and the latter increase in the thickness of the? Layer correlate with each other. That is, CMC is composed of a beta layer and a protein layer (delta layer) in the beta layer, and from the viewpoint of moisture retention, the thickness of the beta layer having higher hydrophobicity than the delta layer is preferable to suppress the moisture- I think it contributes.

Squalane, which is the component (A) in the present embodiment, is known. The squalane includes, for example, vegetable squalane obtained by hydrogenating squalene obtained from plant derived products such as synthetic squalane obtained by polymerizing isoprene, olive oil, rice bran, sesame and the like, and squalene obtained from liver oil of shark Squalane is obtained. In the composition for hair of the present embodiment, one or more kinds selected from known squalanes are blended as component (A).

The blending amount of the component (A) in the hair composition of the present embodiment is, for example, 0.001 mass% or more and 10 mass% or less, preferably 0.002 mass% or more and 5 mass% or less, more preferably 0.004 mass% or more and 3 mass% By mass, more preferably 0.008% by mass or more and 1% by mass or less, and still more preferably 0.01% by mass or more and 0.5% by mass or less. When the content is 0.001% by mass or more, improvement in water retention of hair or an increase in the thickness of the lipid layer (beta layer) in the cell membrane complex is more excellent. If it is 10% by mass or less, the hair composition of the present embodiment can be reduced in cost.

The liquid ester (I) which is the component (B) in the present embodiment is represented by the following general formula (I). The term "liquid phase" of the ester (I) means that the liquid phase is in a temperature range of 20 ° C or higher and 30 ° C or lower.

R ¹ COO-R ² (I)

[In the general formula (I), R ¹ COO represents a saturated fatty acid residue having a carbon number of 12 or more and 18 or less, and R ² represents a saturated hydrocarbon group having a carbon number of 8 or more and 20 or less.

Examples of the R ¹ COO include saturated fatty acid residues such as isophthalic acid, isostearic acid, lauric acid, myristic acid, palmitic acid and stearic acid. Examples of the R ² include a 2-ethylhexyl group, an isotridecyl group, a 2-hexyldecyl group, an isostearyl group and a 2-octyldodecyl group.

In the composition for hair of the present embodiment, one or more kinds selected from known liquid ester (I) are blended as component (A). In the hair composition of the present embodiment, the blending amount of the liquid ester (I) as the component (B) is 0.001 mass% or more and 10 mass% or less, preferably 0.002 mass% or more and 5 mass% Or more and 3 mass% or less, more preferably 0.008 mass% or more and 1 mass% or less, and still more preferably 0.01 mass% or more and 0.5 mass% or less. When the content is 0.001% by mass or more, improvement in water retention of hair or an increase in the thickness of the lipid layer (beta layer) in the cell membrane complex is more excellent. If it is 10% by mass or less, the hair composition of the present embodiment can be reduced in cost.

The mass ratio of the components (A) and (B) incorporated in the hair composition of the present embodiment is, for example, 1: 0.3 or more and 2.5 or less.

Examples of the liquid ester (I) include a liquid ester (I-1) represented by the following general formula (I-1).

R ³ COO-R ⁴ (I-1)

[In the general formula (I-1), R ³ COO represents a branched saturated fatty acid residue having a carbon number of 12 or more and 18 or less, and R ⁴ represents a branched saturated hydrocarbon group having a carbon number of 8 or more and 20 or less.

Examples of the liquid ester (I-1) include 2-ethylhexyl isopalmitate, 2-hexyldecyl isostearate, isostearic acid isostearyl and 2-octyldodecyl isostearate. One or more selected from these are added to the composition for hair of the present embodiment.

In the hair composition of the present embodiment, the blending amount of the liquid ester (I-1) is, for example, 0.001 mass% to 10 mass%, preferably 0.002 mass% to 5 mass% By mass or less, more preferably 0.008% by mass or more and 1% by mass or less, and still more preferably 0.01% by mass or more and 0.5% by mass or less. When the content is 0.001% by mass or more, improvement in water retention of hair or an increase in the thickness of the lipid layer (beta layer) in the cell membrane complex is more excellent. If it is 10% by mass or less, the hair composition of the present embodiment can be reduced in cost.

The mass ratio of the component (A) and the liquid ester (I-1) to be combined is, for example, 1: 0.3 or more and 2.5 or less.

Examples of the liquid ester (I) include a liquid ester (I-2) represented by the following general formula (I-2).

R ⁵ COO-R ⁶ (I-2)

[In the general formula (I-2), R ⁵ COO represents a linear saturated fatty acid residue having a carbon number of 12 or more and 18 or less, and R ⁶ represents a branched saturated hydrocarbon group having a carbon number of 8 or more and 20 or less.

Examples of the liquid ester (I-2) include esters such as lauric acid, succinic acid esters such as lauric acid, lauric acid, 2-ethylhexyl palmitate, 2-hexyldecyl palmitate, isostearyl palmitate, 2-ethylhexyl stearate, and 2-hexyldecyl stearate. One or more selected from these are added to the composition for hair of the present embodiment.

In the hair composition of the present embodiment, the amount of the liquid ester (I-2) to be blended is preferably 0.001 mass% to 10 mass%, more preferably 0.002 mass% to 5 mass%, more preferably 0.004 mass% By mass or less, more preferably 0.008% by mass or more and 1% by mass or less, and still more preferably 0.01% by mass or more and 0.5% by mass or less. When the content is 0.001% by mass or more, improvement in water retention of hair or an increase in the thickness of the lipid layer (beta layer) in the cell membrane complex is more excellent. If it is 10% by mass or less, the hair composition of the present embodiment can be reduced in cost.

The mass ratio of the component (A) and the liquid ester (I-2) to be combined is, for example, 1: 0.3 or more and 2.5 or less.

In the composition for hair of the present embodiment, as described above, a raw material blended in a known composition for hair may be further blended. The raw material is appropriately selected according to the use of the hair composition, and examples thereof include anionic surfactants, cationic surfactants, amphoteric surfactants, nonionic surfactants, higher alcohols, polyhydric alcohols, / RTI >

Examples of the anionic surfactant include alkyl ether carboxylates, alkanesulfonates,? -Olefinsulfonates, alkylsulfates and alkylether sulfates. When an anionic surfactant is added to the composition for hair, one or two or more surfactants may be blended. The blending concentration of the anionic surfactant in the hair composition is appropriately set according to the use of the composition, but is, for example, from 0.1 mass% to 20 mass%.

Examples of the cationic surfactant include fatty acid amide amine salts, ester-containing tertiary amine salts, long-chain alkyl trimethyl ammonium salts and di-branched chain alkyl dimethyl ammonium salts. When a cationic surfactant is compounded in the composition for hair, one or two or more of them may be blended. The compounding concentration of the cationic surfactant in the hair composition is appropriately set according to the use of the composition, but is, for example, from 0.1 mass% to 20 mass%.

Examples of amphoteric surfactants include alkyldimethylaminoacetic acid betaine, fatty acid amidepropyldimethylaminoacetic acid betaine, and alkyldihydroxyethylaminoacetic acid betaine. When an amphoteric surfactant is blended with a composition for a hair, one or two or more kinds thereof may be blended. The compounding concentration of the amphoteric surfactant in the composition for hair is appropriately set according to the use of the composition, but is, for example, from 0.1 mass% to 10 mass%.

Examples of the nonionic surfactant include polyoxyethylene alkyl ethers, polyoxyethylene polyoxypropylene alkyl ethers, polyoxyethylene fatty acid esters, polyoxyethylene sorbitan fatty acid esters, glycerin fatty acid esters, sorbitan fatty acid esters, poly Glycerin fatty acid esters, and sucrose fatty acid esters. When a nonionic surfactant is compounded in a composition for a hair, one kind or two or more kinds thereof may be blended. The compounding concentration of the nonionic surfactant in the hair composition is appropriately set according to the use of the composition, but is, for example, from 0.1 mass% to 20 mass%.

The higher alcohols include, for example, cetanol, stearyl alcohol, isostearyl alcohol, behenyl alcohol and myristyl alcohol. When a high-alcohol is blended with the composition for hair, one or two or more of them may be blended. The compounding concentration of the higher alcohol in the composition for hair is appropriately set according to the use of the composition, but is, for example, 1% by mass or more and 10% by mass or less.

Examples of polyhydric alcohols include ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, glycerin, diglycerin and butylene glycol. In the case of blending a polyhydric alcohol with a hair composition, one or two or more of them may be blended. The blending concentration of the polyhydric alcohol in the composition for hair is appropriately set depending on the use of the composition, but is, for example, from 0.1 mass% to 20 mass%.

Examples of the preservatives include avocado oil, olive oil, shea butter oil, evening primrose oil, camellia oil, and rosehip oil. When the composition for hair is formulated with a fat, one or two or more ingredients may be blended. The compounding concentration of the oil in the composition for hair is appropriately set according to the use of the composition, but is, for example, from 0.1 mass% to 5 mass%.

Examples of the silicon include dimethylsilicone, cyclic dimethylsilicon, and amino-modified silicone. When the composition for hair is formulated with silicone, one or two or more of them may be blended. The compounding concentration of silicon in the composition for hair is appropriately set according to the use of the composition, but is, for example, from 0.1 mass% to 50 mass%.

Examples of the synthetic polymer compound include a polyacrylic acid-based polymer (carboxyvinyl polymer, polyacrylic acid amide, sodium polyacrylate, and (acrylic acid / alkyl methacrylate) copolymer. For example, cellulose derivatives such as hydroxyethyl cellulose and cationic cellulose, starch derivatives such as hydroxypropyl starch phosphate, and guar gum derivatives such as chitinated guar gum and hydroxypropylated guar gum. , And natural hyaluronic acid, for example, sodium hyaluronate. When a polymer compound (a synthetic polymer compound, a semisynthetic polymer compound, a natural polymer compound) is blended in a hair composition, if one or more kinds are blended The blending concentration of the polymer compound in the hair composition is suitably adjusted depending on the use of the composition But it is defined, for example at least 0.1% by weight 5% or less.

The composition for hair of the present embodiment is used in a method of applying it to hair and subjecting it to hair treatment. For example, there are (1) a treatment to be applied to wet hair, followed by washing the hair with water, (2) a non-washed treatment to be applied to the hair after it is applied to wet hair or dried hair, (3) The hair composition of the present embodiment is used as a hair cleanser for applying the hair to the wet hair and then washing the hair after washing the hair surface.

When the composition for hair is used as a washable treatment, a non-washed treatment, or a hair cleansing agent, examples of combinations of the raw materials blended together with the components (A) and (B) are as follows. Examples of combinations of raw materials to be blended in the washing treatment include cationic surfactants, nonionic surfactants, higher alcohols, polyhydric alcohols, oils, silicones, synthetic high molecular compounds, and water. Examples of the combination of raw materials to be blended in the non-washed treatment include cationic surfactants, nonionic surfactants, polyhydric alcohols, oils, silicones, synthetic polymer compounds, natural polymer compounds, and water. Examples of the combination of raw materials to be blended in the hair cleanser include anionic surfactants, amphoteric surfactants, nonionic surfactants, polyhydric alcohols, semisynthetic polymer compounds, and water.

The formulation for use in the hair composition of the present embodiment is not particularly limited, and examples thereof include a liquid, a cream, a gel, a foam (vapor phase), and a mist phase. In the case where the composition for hair of the present embodiment has an oil phase and an aqueous phase, it may be a water-in-oil type formulation or a water-in-oil type formulation in which the external phase is oil. In the case of an underwater type formulation, the blending amount of water is, for example, 60 mass% or more. In the case of a water-in-oil type formulation, the blending amount of water is, for example, 10 mass% or less.

The pH of the composition for hair of the present embodiment at 25 占 폚 should be appropriately set, but is, for example, 4.0 or more and 7.0 or less.

Example

Hereinafter, the present invention will be described in detail on the basis of examples, but the present invention is not limitedly interpreted based on the description of this example.

(Composition for hair)

A composition for hair for Example 1 and Comparative Examples 1 and 2 was prepared using squalane (vegetable squalane obtained by hydrogenating squalene from olive oil), isostearic acid, saxatole, and decamethylcyclopentasiloxane. The blending amounts of these compositions were as shown in Table 1 below.

(Water retention)

The water evaporation rate of the hair treated with the hair composition of Example 1 or Comparative Examples 1 and 2 and the untreated hair was calculated and tested for moisture retention of the hair. Details of the test were as follows.

The hair collected from five randomly selected Japanese women was used as " untreated hair ". Each untreated hair was immersed in the hair composition of Example 1 for 10 minutes, washed with water, and subjected to hot air drying to perform hair treatment. The same hair treatment was carried out using the composition for hair of Comparative Example 1 or Comparative Example 2.

The untreated hair and the treated hair were cut to about 1 mm and allowed to stand in a room at 25 ° C and a humidity of 50% for 6 hours or more, and 100 mg of each hair after sintering was collected. The collected hair was allowed to stand in a constant temperature and humidity bath at 25 캜 and a humidity of 85% by mass for 6 hours or more. Subsequently, the sample was moved to a room at 25 ° C and a humidity of 50%, and then the mass of hair was measured within a period of 35 to 45 seconds. The measured value was regarded as an initial value (W _ini ) of the mass of hair. After the measurement of the W _ini , the hair was left standing indoors, and the hair mass (W ₃₀ ) after 30 minutes and the hair mass (W ₆₀ ) after 60 minutes were measured.

The water evaporation rate (T ₃₀ ) after 30 minutes and the water evaporation rate (T ₆₀ ) after 60 minutes were calculated from the following formulas (W ₃₀ , W ₆₀ and W _ini in the following formulas Reference.).

T ₃₀ = 100 - W ₃₀ / W _ini x 100

_{T 60 = 100 - W 60 /} W ini × 100

Table 2 shows the results of the water evaporation rate after 30 minutes of standing. The " hair mass " and " moisture content increase rate " in Table 2 are average values based on the five hairs collected.

As shown in Table 2, in Comparative Examples 1 and 2 in which ingredient (A) squalane or ingredient (B) isostearic acid and saxatole was blended, the moisture production rate was lower than that of untreated hair. Example 1 in which both of the components (A) and (B) were blended had a lower rate of moisture evaporation than those of Comparative Examples 1 and 2 and was excellent in water retention.

Table 3 below shows the results for the water evaporation rate after 30 minutes. Similarly to the above Table 2, the "hair mass" and "water evaporation rate" in the following Table 3 are average values.

As shown in Table 3, Example 1 in which both of the components (A) and (B) were blended, as in Table 2, exhibited the lowest water evaporation rate and excellent water retention.

(Thickness of the lipid layer and protein layer in the cell membrane complex)

The thicknesses of the lipid layer (? Layer) and the protein layer (? Layer) in the cell membrane complex (CMC) of the hair cuticle were measured with respect to the bleaching treatment and the hair treated with the hair composition of Example 1, Respectively. The details up to this measurement were as follows.

Hair sampled from 18 Japanese women aged 20 to 50 who did not have a history of chemical treatment such as oxidation hair treatment was prepared as " untreated hair ". Each untreated hair was immersed in a bleaching agent (aqueous solution of 3 mass% of hydrogen peroxide adjusted to pH 10.0 with ammonia water) for 20 minutes, washed with water, and subjected to hot air drying to carry out bleaching treatment. The hair after the bleaching treatment was immersed in the hair composition of Example 1 for 10 minutes, washed with water, and subjected to hot air drying to perform hair treatment.

Measurement was performed using the beam line BL24XU of the large synchrotron SPring-8 with respect to the untreated hair, the hair after the bleaching treatment, and the β layer and delta layer of CMC in the cuticle of the hair after hair treatment using the hair composition of Example 1 Respectively. In this measurement, an X-ray micro beam was irradiated on the cuticle of hair, perpendicular to the axis of the hair. Other measurement conditions are as follows.

Beam size: 5.6 占 퐉 占 4.8 占 퐉

Camera length: 1122 mm

Exposure time: 30 seconds

With reference to a known report (N. Ohta, et al., J. Appl. Crystal. 38, 274-279 (2005)), the thickness of the? And? Layers from the scattering profile, Respectively. The calculated results are the same as those of "after hair treatment", "after bleaching treatment" and "untreated" in Tables 4 to 5 below.

In the Tables 4 to 5, the values of the beta layer and the delta layer were smaller than the " untreated ", and the thickness of the beta layer and the delta layer was decreased by chemical treatment (bleaching treatment). However, the? Layer was greatly increased by the treatment of the hair composition of Example 1 in which the components (A) and (B) were blended (see "Difference in Thickness (nm) After "-" after bleaching ").

Claims (7)

A composition for hair characterized by comprising the following components (A) and (B).
(A) Squalane
(B) a liquid ester (I) represented by the following general formula (I)
R ¹ COO-R ² (I)
[In the general formula (I), R ¹ COO represents a saturated fatty acid residue having a carbon number of 12 or more and 18 or less, and R ² represents a saturated hydrocarbon group having a carbon number of 8 or more and 20 or less. The method according to claim 1,
Wherein the liquid ester (I-1) represented by the following general formula (I-1) is blended as the component (B).
R ³ COO-R ⁴ (I-1)
[In the general formula (I-1), R ³ COO represents a branched saturated fatty acid residue having a carbon number of 12 or more and 18 or less, and R ⁴ represents a branched saturated hydrocarbon group having a carbon number of 8 or more and 20 or less. 3. The method of claim 2,
As the liquid ester (I-1), there can be used one or more kinds selected from 2-ethylhexyl isopalmitate, 2-hexyldecyl isostearate, isostearic acid di-isostearyl and 2-octyldodecyl isostearate 0.0 > 1, < / RTI > The method according to claim 1,
Wherein the liquid ester (I-2) represented by the following general formula (I-2) is blended as the component (B).
R ⁵ COO-R ⁶ (I-2)
[In the general formula (I-2), R ⁵ COO represents a linear saturated fatty acid residue having a carbon number of 12 or more and 18 or less, and R ⁶ represents a branched saturated hydrocarbon group having a carbon number of 8 or more and 20 or less. 5. The method of claim 4,
As the liquid ester (I-2), it is preferable that the lauric acid is selected from the group consisting of sostearyl, myristate isotridecyl, myristate 2-hexyldecyl, myristic acid iodosyl, myristate 2-octyldodecyl, 2-ethylhexyl palmitate, 2-hexyldecyl palmitate, 2-ethylhexyl palmitate, 2-ethylhexyl stearate, and 2-hexyldecyl stearate. The method according to claim 1,
A composition for hair to be used as a washable treatment, a non-washed treatment, or a hair cleanser. A hair treatment method characterized by using the hair composition according to any one of claims 1 to 6.

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