JP6929672B2 - Hair composition and hair treatment method - Google Patents

Description

The present invention relates to hair compositions used in rinse-off treatments, non-rinse-out treatments, hair cleansers and the like.

The feel of hair differs depending on the hair quality, hair color treatment history, age, etc., and it is required to improve the feel such as moisturizing feeling, softness, firmness, and smoothness according to individual requests. For example, if the hair is treated with a composition containing a moisturizing ingredient related to the moisturizing feeling, it can be expected to improve the softness and suppress the curly hair, which is said to be one of the factors of the water content.

Patent Document 1 discloses polyhydric alcohols such as glycerin, diglycerin, propylene glycol, and dipropylene glycol as examples of moisturizing ingredients (see paragraphs 0002 and 0018 of Patent Document 1), and Patent Document 2 discloses tripropylene. A cosmetic for hair containing glycol is disclosed (see claim 1 of Patent Document 2), and since this tripropylene glycol is also a kind of polyhydric alcohol, improvement in softness of hair can be expected. Further, Patent Document 3 describes a hair cosmetic containing a specific ether-type cationic surfactant and one or more oils selected from animal oil, vegetable oil, paraffin, liquid paraffin, petrolatum, ceresin and squalane. , There is a disclosure that good flexibility, slipperiness and moist feeling of hair can be imparted.

Japanese Unexamined Patent Publication No. 2008-297296 Japanese Unexamined Patent Publication No. 2016-190806 Japanese Unexamined Patent Publication No. 2003-327513

In view of the above circumstances, an object of the present invention is to provide a hair composition suitable for improving the softness of hair, and a hair treatment method using the composition.

As a result of diligent studies by the present inventor, one or more blends selected from tripropylene glycol and squalane and liquid hydrocarbons having 13 or more and 19 or less carbon atoms are suitable for improving the softness of hair. This has led to the completion of the present invention.

That is, the hair composition according to the present invention is characterized by blending tripropylene glycol with one or more selected from squalane and liquid hydrocarbons having 13 or more and 19 or less carbon atoms.

The hair composition of the present invention preferably contains 2,6,10-trimethyldodecane as the component (B). The formulation of 2,6,10-trimethyldodecane is suitable for improving the softness of hair.

The hair composition of the present invention preferably contains hydrogenated farnesene as the component (B). Hydrogenated farnesene is said to contain 2,6,10-trimethyldodecane, and the formulation of hydrogenated farnesene is suitable for improving the softness of hair.

The hair composition according to the present invention is used, for example, as a wash-off treatment, a non-wash-out 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 hair composition according to the present invention, tripropylene glycol and one or more selected from squalane and liquid hydrocarbons having 13 or more and 19 or less carbon atoms are blended, so that the hair is soft. Is improved.

Further, according to the hair treatment method according to the present invention, a hair composition containing tripropylene glycol and one or more selected from squalane and liquid hydrocarbons having 13 or more and 19 or less carbon atoms is used. Therefore, the softness of the hair is improved.

The present invention will be described below based on embodiments of the present invention.
The hair composition according to this embodiment contains the following components (A) and (B). Further, if it is permissible in actual use, the components contained in the known hair composition may be further added.
(A) Tripropylene glycol (B) One or more selected from squalane and liquid hydrocarbons with 13 or more and 19 or less carbon atoms

In the hair composition of the present embodiment, the blending amount of tripropylene glycol as the component (A) is not particularly limited, but is preferably 0.005% by mass or more and 5.0% by mass or less, and 0.01% by mass or more. 3.0% by mass or less is preferable, 0.05% by mass or more and 1.0% by mass or less is more preferable, and 0.05% by mass or more and 0.5% by mass or less is even more preferable. When it is 0.005% by mass or more, it is more suitable for improving the softness of the hair, and when it is 5.0% by mass or less, it is suitable for suppressing the sticky feel of the hair.

In the hair composition of the present embodiment, as described above, one or more selected from squalane and liquid hydrocarbons having 13 or more and 19 or less carbon atoms are blended as the component (B). The blending amount of the component (B) in the hair composition of the present embodiment is not particularly limited, but is preferably 0.005% by mass or more and 5.0% by mass or less, and 0.01% by mass or more and 3.0% by mass or less. Is more preferable, 0.05% by mass or more and 1.0% by mass or less is more preferable, and 0.05% by mass or more and 0.5% by mass or less is even more preferable. When it is 0.005% by mass or more, it is more suitable for improving the softness of the hair, and when it is 5.0% by mass or less, it is suitable for suppressing the sticky feel of the hair.

As is known, the component (B) squalene is hydrogenated with squalene obtained from shark liver oil, squalene obtained from vegetable oil such as olive oil, or farnesene dimerized from a fermented solution of sugar cane sugar solution. You can get it. It can also be obtained by polymerizing isoprene. When squalane is blended in the hair composition of the present embodiment, the blending amount is not particularly limited, but is preferably 0.005% by mass or more and 5.0% by mass or less, and 0.01% by mass or more and 3.0% by mass. % Or less is preferable, 0.05% by mass or more and 1.0% by mass or less is more preferable, and 0.05% by mass or more and 0.5% by mass or less is even more preferable. When it is 0.005% by mass or more, it is more suitable for improving the softness of the hair, and when it is 5.0% by mass or less, it is suitable for suppressing the sticky feel of the hair.

Examples of the liquid hydrocarbon having 13 or more and 19 or less carbon atoms as the component (B) include (C13-15) alkane and (C15-19) alkane. It is an ingredient name according to "Name".) When a liquid hydrocarbon having 13 or more and 19 or less carbon atoms is blended in the hair composition of the present embodiment, the blending amount is not particularly limited, but 0.005% by mass or more and 5.0% by mass or less is preferable, and 0 It is preferably 0.01% by mass or more and 3.0% by mass or less, more preferably 0.05% by mass or more and 1.0% by mass or less, and even more preferably 0.05% by mass or more and 0.5% by mass or less. When it is 0.005% by mass or more, it is more suitable for improving the softness of the hair, and when it is 5.0% by mass or less, it is suitable for suppressing the sticky feel of the hair.

In addition, 2,6,10-trimethyldodecane is also a kind of the liquid hydrocarbon having 13 or more and 19 or less carbon atoms. When the liquid hydrocarbon of 2,6,10-trimethyldodecane is blended in the hair composition of the present embodiment, the blending amount is not particularly limited, but 0.005% by mass or more and 5.0% by mass or less is preferable. , 0.01% by mass or more and 3.0% by mass or less is preferable, 0.05% by mass or more and 1.0% by mass or less is more preferable, and 0.05% by mass or more and 0.5% by mass or less is even more preferable. When it is 0.005% by mass or more, it is more suitable for improving the softness of the hair, and when it is 5.0% by mass or less, it is suitable for suppressing the sticky feel of the hair.

Hydrogenated farnesene is said to contain 2,6,10-trimethyldodecane and corresponds to component (B). The hydrogenated farnesene can be produced, for example, by hydrogenating farnesene obtained from a fermented liquid of sugar cane sugar solution. When hydrogenated farnesene is added to the hair composition of the present embodiment, the amount thereof is not particularly limited, but is preferably 0.005% by mass or more and 5.0% by mass or less, and 0.01% by mass or more. 0% by mass or less is preferable, 0.05% by mass or more and 1.0% by mass or less is more preferable, and 0.05% by mass or more and 0.5% by mass or less is even more preferable. When it is 0.005% by mass or more, it is more suitable for improving the softness of the hair, and when it is 5.0% by mass or less, it is suitable for suppressing the sticky feel of the hair.

As described above, the hair composition of the present embodiment may further contain the components contained in the known hair composition. The components are appropriately selected according to the use of the hair composition, and are, for example, anionic surfactants, cationic surfactants, amphoteric surfactants, nonionic surfactants, higher alcohols, polyhydric alcohols, fats and oils, esters. Oils, silicones, polymer compounds.

Examples of the anionic surfactant include alkyl ether carboxylate, alkane sulfonate, α-olefin sulfonate, alkyl sulfate and alkyl ether sulfate. When an anionic surfactant is added to the hair composition, it is preferable to add one or more of them. The blending concentration of the anionic surfactant in the hair composition is appropriately set according to the use of the composition, and is, for example, 0.1% by mass or more and 20% by mass or less.

Examples of the cationic surfactant include fatty acid amidoamine salts, ester-containing tertiary amine salts, long-chain alkyltrimethylammonium salts, and di-long-chain alkyldimethylammonium salts. When a cationic surfactant is added to the hair composition, it is preferable to add one or more of them. The blending concentration of the cationic surfactant in the hair composition is appropriately set according to the use of the composition, and is, for example, 0.1% by mass or more and 20% by mass or less.

Examples of the amphoteric tenside include alkyldimethylaminoacetic acid betaine, fatty acid amide propyldimethylaminoacetic acid betaine, and alkyldihydroxyethylaminoacetic acid betaine. When an amphoteric surfactant is added to the hair composition, it is preferable to add one or more of them. The blending concentration of the amphoteric surfactant in the hair composition is appropriately set according to the use of the composition, and is, for example, 0.1% by mass or more and 10% by mass or less.

Examples of the nonionic surfactant include polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, glycerin fatty acid ester, sorbitan fatty acid ester, and polyglycerin fatty acid ester. Examples include sucrose fatty acid esters. When a nonionic surfactant is added to the hair composition, it is preferable to add one or more of them. The blending concentration of the nonionic surfactant in the hair composition is appropriately set according to the use of the composition, and is, for example, 0.1% by mass or more and 20% by mass or less.

Examples of higher alcohols include cetanol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, and myristyl alcohol. When a higher alcohol is added to the hair composition, it is preferable to add one or more of them. The blending concentration of the higher alcohol in the hair composition is appropriately set according to the use of the composition, and is, for example, 1% by mass or more and 10% by mass or less.

Examples of the polyhydric alcohol include ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, glycerin, diglycerin, and butylene glycol. When a polyhydric alcohol is blended in a hair composition, it is preferable to blend one or more. The blending concentration of the polyhydric alcohol in the hair composition is appropriately set according to the use of the composition, and is, for example, 0.1% by mass or more and 20% by mass or less.

Examples of fats and oils include avocado oil, olive oil, shea butter oil, evening primrose oil, camellia oil, and rosehip oil. When blending fats and oils in a hair composition, it is preferable to blend one or more. The blending concentration of fats and oils in the hair composition is appropriately set according to the use of the composition, and is, for example, 0.1% by mass or more and 5% by mass or less.

Examples of the ester oil include isopropyl myristate, isopropyl myristate, cetyl palmitate, octyldodecyl myristate, ethyl isostearate, cetyl 2-ethylhexanoate, hexyl isostearate, pentaerythritol tetra2-ethylhexanoate, and myristyl lactate. , Diisostearyl malate, cholesteryl stearate. When the ester oil is blended in the hair composition, it is preferable to blend one kind or two or more kinds. The blending concentration of the ester oil in the hair composition is appropriately set according to the use of the composition, and is, for example, 0.1% by mass or more and 10% by mass or less.

Examples of the silicone include dimethyl silicone, cyclic dimethyl silicone, and amino-modified silicone. When silicone is added to the hair composition, it is preferable to add one or more of them. The blending concentration of silicone in the hair composition is appropriately set according to the use of the composition, and is, for example, 0.1% by mass or more and 50% by mass or less.

Examples of the synthetic polymer compound include a polyacrylic acid-based polymer (carboxyvinyl polymer, polyacrylic acid amide, sodium polyacrylate, (acrylic acid / alkyl methacrylate)) copolymer, and examples of the semi-synthetic polymer compound. Examples thereof include cellulose derivatives (hydroxyethyl cellulose, cationized cellulose, etc.), starch derivatives (hydroxypropyl starch phosphate, etc.), guar gum derivatives (cationized guar gum, hydroxypropylated guar gum, etc.), and natural polymers. For example, sodium hyaluronate may be mentioned. When a polymer compound (synthetic polymer compound, semi-synthetic polymer compound, natural polymer compound) is blended in a hair composition, one or more of them may be blended. The compounding concentration of the polymer compound in the composition for hair is appropriately set according to the use of the composition, and is, for example, 0.1% by mass or more and 5% by mass or less.

The hair composition of the present embodiment is used in a method of applying to hair and treating the hair. For example, (1) a non-rinse treatment that uses after applying to wet hair and then washing the hair with water, (2) a non-rinse treatment that uses after applying to wet or dry hair without washing the hair with water, (3) In order to clean the surface of the hair, the composition for hair of the present embodiment is used as a hair cleaning agent used by washing the hair with water after applying it to wet hair.

When the above-mentioned hair composition is used as a wash-off treatment, a non-wash-out treatment, or a hair cleansing agent, examples of combinations of raw materials blended together with the components (A) and (B) are as follows. The combination of raw materials to be blended in the wash-off treatment is a cationic surfactant, a nonionic surfactant, a higher alcohol, a polyhydric alcohol, a fat or oil, an ester oil, a silicone, a synthetic polymer compound, and water. Combinations of raw materials blended in non-rinse treatments include cationic surfactants, nonionic surfactants, polyhydric alcohols, fats and oils, ester oils, silicones, synthetic polymer compounds, natural polymer compounds, and water. The combination of raw materials to be blended in the hair cleanser is an anionic surfactant, an amphoteric surfactant, a nonionic surfactant, a polyhydric alcohol, a semi-synthetic polymer compound, and water.

The dosage form of the hair composition of the present embodiment when used is not particularly limited, and examples thereof include liquid, cream, gel, foam (foam), and mist. When the hair composition of the present embodiment has an oil phase and an aqueous phase, it is either an oil-in-water type formulation in which the outer phase is water or a water-in-oil formulation in which the outer phase is an oil phase. Is also good. In the case of the oil-in-water dosage form, the blending amount of water is, for example, 60% by mass or more. In the case of the water-in-oil dosage form, the blending amount of water is, for example, 10% by mass or less.

The pH of the hair composition of the present embodiment at 25 ° C. should be set as appropriate, and is, for example, 4.0 or more and 7.0 or less.

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

(Composition for hair)
As shown in Table 1 below, the hair compositions of Examples and Comparative Examples were selected from tripropylene glycol, hydrogenated farnesene, squalane, jojoba oil, avocado oil, olive oil and evening primrose oil, and polyoxy. It was produced by blending ethylene lauryl ether sodium sulfate (Kao Corporation "Emar 227HP") and water. The unit of the blending amount in Table 1 below is "mass%", and "remaining portion" means "amount to be 100% by mass".

(Evaluation of hair softness)
We evaluated the softness of hair collected from near the roots of Japanese women. In this evaluation, the average value of the B values obtained by the measuring device was used as an index of the torsional strength. The measuring devices used were as follows.
Torsion strength measuring device: Katou Tech's torsion tester "KES-YN-1"
Hair twisting condition: 3 rotations clockwise, 3 rotations counterclockwise Measurement target Hair length: 2 cm of fixed hair length from top to bottom
Number of hairs to be measured: 50 (10 collected from one woman)
Treatment of pre-measurement hair: Hair treated with untreated hair or hair composition is left overnight in an atmosphere of 25 ° C. and 50% humidity. Treatment with hair composition: Immerse the hair in the hair composition for 5 minutes. After that, air dry

In the above measurement, hair that was common to both untreated hair and hair treated with the hair composition was used. Then, after each measurement, the hair was immersed in water overnight for the purpose of removing residual stress in the hair.

Table 1 below shows the measurement results of the torsional strength together with the components blended in the hair compositions of Examples and Comparative Examples and the blending amounts thereof. It can be confirmed that Examples 1a and 1b in which tripropylene glycol and hydrogenated farnesene or squalane were blended had a small value of torsional strength and were excellent in improving the softness of hair.

Claims (5)

A composition for hair, which comprises the following components (A) and (B) and is used as a wash-off treatment, a non-wash-out treatment, or a hair cleanser.
(A) Tripropylene glycol (B) One or more selected from squalane and liquid hydrocarbons with 13 or more and 19 or less carbon atoms The hair composition according to claim 1, wherein 2,6,10-trimethyldodecane is blended as the component (B). The hair composition according to claim 1, wherein hydrogenated farnesene is blended as the component (B). The hair composition according to any one of claims 1 to 3, wherein the blending amount of the component (B) is 0.005% by mass or more and 3.0% by mass or less. A hair treatment method, which comprises using the hair composition according to any one of claims 1 to 4.