JP2022126833A - Hair composition and hair treatment method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hair composition suitable for repairing damaged hair and curing damage caused by heat treatment and the like, and a hair treatment method using the composition.

SOLUTION: A hair composition is a blend of one or more selected from trehalose, xylose, xylitol and maltitol, as well as polyethylene glycol having an average addition mole number of ethylene oxide of 6 or more. Preferably, isotridecyl isononanoate and/or isodecyl isononanoate should be further blended therein. A hair treatment method involves the application of the hair composition.

SELECTED DRAWING: None

COPYRIGHT: (C)2022,JPO&INPIT

Description

The present invention relates to a hair composition used for rinse-off treatments, leave-in treatments, hair cleansers and the like.

Hair is damaged by physical treatments such as brushing, dryers, hot irons, hair coloring, permanent waving, heat treatments, or chemical treatments. There is a need to protect hair to prevent such damage, or to repair damaged hair.

Patent Document 1 proposes a composition containing at least one sugar selected from specific monosaccharides and derivatives thereof, and Patent Document 2 proposes a composition containing a plant extract and sugar. there is Patent Documents 1 and 2 describe that these compositions suppress damage to hair caused by heat treatment or chemical treatment and repair damaged hair. Further proposals other than the above composition are desired for the protection and repair of hair.

JP-A-2005-343902 Japanese Patent Publication No. 2003-526646

In view of the above circumstances, an object of the present invention is to provide a hair composition suitable for repairing damaged hair and suppressing damage caused by heat treatment or the like, and a hair treatment method using the composition.

As a result of intensive studies by the present inventors, it is known that carboxymethylalanyl disulfide keratin is related to damage suppression, hair damage suppression and repair of damaged hair, and that it imparts a moisturizing feeling. The combination of trehalose, etc., which has been found to suppress damage to carboxymethylalanyl disulfide keratin, and specific polyethylene glycol is excellent in suppressing hair damage and repairing damaged hair. The present invention has been completed.

That is, the composition for hair according to the present invention is characterized by containing the following components (A) and (B).
(A) one or more selected from trehalose, xylose, xylitol and maltitol (B) polyethylene glycol having an average number of added moles of ethylene oxide of 6 or more

The composition for hair according to the present invention preferably contains trehalose as the component (A).

The composition for hair according to the present invention preferably contains, as the component (B), polyethylene glycol having an average addition mole number of ethylene oxide of 12 or more. When the average added mole number of ethylene oxide is 12 or more, it is more suitable for suppressing hair damage and repairing hair.

Moreover, the composition for hair according to the present invention preferably contains polyethylene glycol having an average addition mole number of ethylene oxide of 100 or less as the component (B). When the average number of added moles of ethylene oxide is 100 or less, it easily penetrates into the inside of the hair, and is suitable for suppressing and repairing damage inside the hair.

In the composition for hair according to the present invention, the blending amount of the component (A) is preferably larger than the blending amount of the component (B). This blending amount relationship is more suitable for suppressing hair damage and repairing hair.

The composition for hair according to the present invention preferably contains the following component (C). The formulation of component (C) below is suitable for hair repair.
(C) isotridecyl isononanoate and/or isodecyl isononanoate

The hair composition according to the invention is used, for example, as a rinse-off treatment, a leave-in treatment or a hair cleanser.

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

Since the composition for hair according to the present invention contains trehalose and specific polyethylene glycol, it is excellent in inhibiting hair damage and repairing hair.

The present invention will be described below based on the embodiments of the present invention.
The composition for hair according to this embodiment contains the following components (A) and (B).
(A) one or more selected from trehalose, xylose, xylitol and maltitol (B) polyethylene glycol having an average number of added moles of ethylene oxide of 6 or more

The composition for hair according to this embodiment preferably contains the following component (C).
(C) isotridecyl isononanoate and/or isodecyl isononanoate

In addition, as long as it is practically acceptable, raw materials that are blended in known hair compositions may be further blended.

In the composition for hair according to the present embodiment, the blending amount of component (A) is preferably larger than the blending amount of polyethylene glycol having an average added mole number of ethylene oxide of 6 or more, which is component (B). This blending amount relationship is more suitable for suppressing hair damage and repairing hair. The blending amount of component (A) relative to the blending amount of component (B), ie, the blending amount of component (A)/the blending amount of component (B), is preferably 1.5 or more, preferably 2.0 or more. 2.5 or more is more preferable. On the other hand, the upper limit of "the blending amount of component (A)/the blending amount of component (B)" is, for example, 5.0.

In the hair composition of the present embodiment, the amount of component (A) to be blended is preferably 0.03% by mass or more and 5% by mass or less, preferably 0.05% by mass or more and 3% by mass or less, and 0.07% by mass. % or more and 1 mass % or less is more preferable. When it is 0.03% by mass or more, hair damage suppression and hair repair are more excellent. When the content is 5% by mass or less, the cost of the hair composition of the present embodiment can be reduced.

In the hair composition of the present embodiment, it is preferable that trehalose is blended as the component (A). Trehalose is a suitable component for repairing hair and preventing damage to hair.

In the composition for hair according to the present embodiment, the blending amount of trehalose as component (A) is preferably larger than the blending amount of polyethylene glycol having an average added mole number of ethylene oxide of 6 or more as component (B). . This blending amount relationship is more suitable for suppressing hair damage and repairing hair. The blending amount of trehalose relative to the blending amount of component (B), ie, the blending amount of component (a)/the blending amount of component (B), is preferably 1.5 or more, preferably 2.0 or more, and 2.5. The above is more preferable. On the other hand, the upper limit of "the blending amount of component (a)/the blending amount of component (B)" is, for example, 5.0.

In the hair composition of the present embodiment, the trehalose content is preferably 0.03% by mass or more and 5% by mass or less, preferably 0.05% by mass or more and 3% by mass or less, and 0.07% by mass or more. % by mass or less is more preferable. When it is 0.03% by mass or more, hair damage suppression and hair repair are more excellent. When the content is 5% by mass or less, the cost of the hair composition of the present embodiment can be reduced.

As described above, (B) polyethylene glycol in which the average number of added moles of ethylene oxide is 6 or more is blended in the hair composition of the present embodiment. By blending this polyethylene glycol, as is well known, it is possible to impart a moisturizing feeling to the hair. In addition, when the average number of added moles is 6 or more, compared to polyethylene glycol with an average number of added moles of less than 6, excellent hair damage suppression and hair repair can be achieved.

In polyethylene glycol which is the component (B), the average number of added moles of ethylene oxide is preferably 12 or more, preferably 16 or more. When the average number of added moles is 12 or more, hair damage suppression and hair repair are more excellent.

The average added mole number is, for example, 400 or less, preferably 100 or less, preferably 60 or less, and more preferably 40 or less. The smaller the average number of added moles, the more damage can be suppressed and the hair repaired not only on the surface of the hair but also on the inside of the hair.

Examples of the component (B) include PEG-6, PEG-8, PEG-12, PEG-16, PEG-20, PEG-30, PEG-32, PEG-40, PEG-60, PEG-75, PEG-90, PEG-150, PEG-180, PEG-220, PEG-240, PEG-400, PEG-450 (in the above, "PEG" means polyethylene glycol, "PEG-" The following integer represents the average added mole number of ethylene oxide in the polyethylene glycol).

One or more selected from polyethylene glycol as the component (B) may be added to the hair composition of the present embodiment. The blending amount of the component (B) in the composition for hair is preferably 0.01% by mass or more and 0.2% by mass or less, preferably 0.01% by mass or more and 0.1% by mass or less, and 0.02% by mass. More preferably, it is 0.05% by mass or less. When the amount of component (B) is 0.01% by mass or more, hair damage suppression and hair repair are more excellent, and when the amount is 0.2% by mass or less, the feeling of hair caused by the addition of component (B) is improved. impact on is kept low.

As described above, the hair composition of the present embodiment preferably contains (C) isotridecyl isononanoate and/or isodecyl isononanoate, preferably isotridecyl isononanoate. The combination of component (C) is suitable for hair repair.

In the composition for hair of the present embodiment, the blending amount of the component (C) is preferably 0.03% by mass or more and 5% by mass or less, preferably 0.04% by mass or more and 3% by mass or less, and 0.07% by mass. % or more and 1 mass % or less is more preferable. When it is 0.03% by mass or more, hair repair is more excellent.
When the content is 5% by mass or less, the cost of the hair composition of the present embodiment can be reduced.

As described above, the hair composition of the present embodiment may further contain raw materials blended in known hair compositions. Raw materials thereof are 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, oils and fats, and esters. They are oils, silicones, and polymer compounds.

Anionic surfactants include, for example, alkyl ether carboxylates, alkane sulfonates, α-olefin sulfonates, alkyl sulfates, and alkyl ether sulfates. When blending an anionic surfactant in a hair composition, it is preferable to blend one or more of them. The concentration of the anionic surfactant in the hair composition is appropriately set depending on the application of the composition, and is, for example, 0.1% by mass or more and 20% by mass or less.

Examples of cationic surfactants 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 blended into the hair composition, it is preferable to blend one or more of them. The concentration of the cationic surfactant in the hair composition is appropriately set depending on the application of the composition, and is, for example, 0.1% by mass or more and 20% by mass or less.

Examples of amphoteric surfactants include betaine alkyldimethylaminoacetate, betaine fatty acid amidopropyldimethylaminoacetate, and betaine alkyldihydroxyethylaminoacetate. When amphoteric surfactants are blended into the hair composition, it is preferable to blend one or more of them. The concentration of the amphoteric surfactant in the hair composition is appropriately set depending on the application of the composition, and is, for example, 0.1% by mass or more and 10% by mass or less.

Examples of nonionic surfactants 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, polyglycerin fatty acid esters, A sucrose fatty acid ester is mentioned. When blending nonionic surfactants in the hair composition, it is preferable to blend one or more of them. The concentration of the nonionic surfactant in the hair composition is appropriately set according to the application 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 blended into the hair composition, it is preferable to blend one or more of them. Moreover, the concentration of the higher alcohol in the composition for hair 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 polyhydric alcohols include ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, glycerin, diglycerin, and butylene glycol. When blending a polyhydric alcohol into a hair composition, it is preferable to blend one or more of them. Moreover, the concentration of the polyhydric alcohol in the composition for hair is appropriately set according to the application of the composition, and is, for example, 0.1% by mass or more and 20% by mass or less.

Fats and oils include, for example, avocado oil, olive oil, shea oil, evening primrose oil, camellia oil, and rosehip oil. When oils and fats are blended in the composition for hair, it is preferable to blend one or more of them. The blending concentration of fats and oils 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.

Examples of ester oils include isopropyl myristate, isopropyl palmitate, cetyl palmitate, octyldodecyl myristate, ethyl isostearate, cetyl 2-ethylhexanoate, hexyl isostearate, pentaerythritol tetra-2-ethylhexanoate, and myristyl lactate. , diisostearyl malate, and cholesteryl stearate. When blending an ester oil into a hair composition, it is preferable to blend one or more of them. The concentration of the ester oil 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 10% by mass or less.

Examples of silicones include dimethylsilicone, cyclic dimethylsilicone, and amino-modified silicone. When silicone is blended into the hair composition, it is preferable to blend one or more of them. The concentration of silicone in the hair composition is appropriately set according to the application of the composition, and is, for example, 0.1% by mass or more and 50% by mass or less.

Synthetic polymer compounds include, for example, polyacrylic acid-based polymers (carboxyvinyl polymer, polyacrylic acid amide, sodium polyacrylate, (acrylic acid/alkyl methacrylate) copolymers. Semi-synthetic polymer compounds include , for example, 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 can be used.When polymer compounds (synthetic polymer compounds, semi-synthetic polymer compounds, natural polymer compounds) are blended in the hair composition, one or more of them may be blended. In addition, the blending concentration of the polymer compound in the composition for hair is appropriately set according to the application 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 the hair and treating the hair. For example, (1) a rinse-off treatment in which the hair is washed with water after application to wet hair, (2) a leave-in treatment in which the hair is applied without washing after application to wet or dry hair, and (3) a leave-in treatment. In order to cleanse the surface of hair, the composition for hair according to the present embodiment is used as a hair cleanser which is applied to wet hair and used after rinsing the hair with water.

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

The dosage form of the composition for hair according to the present embodiment is not particularly limited, and examples thereof include liquid, cream, gel, foam (foam), and mist. When the composition for hair of the present embodiment has an oil phase and an aqueous phase, it may be either an oil-in-water formulation in which the external phase is water or a water-in-oil formulation in which the external phase is an oil phase. Also good. In the case of an oil-in-water dosage form, the water content is, for example, 60% by mass or more. In the case of a water-in-oil dosage form, the amount of water to be blended 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.

EXAMPLES The present invention will be described in detail below based on examples, but the present invention is not limitedly interpreted based on the description of these examples.

(Composition for hair)
Hair compositions of Examples 1-3 and Comparative Examples 1a, 1b, 2, 3 were prepared using trehalose, PEG-20, and water as described in Tables 1-3 below. In addition, the hair compositions of Examples 4a and 4b and Comparative Example 4 were mixed with polyoxyethylene hydrogenated castor oil (30 E.O.) and polyoxyethylene polyoxypropylene cetyl ether (10 E.O.) as shown in Table 4 below. 0.) (4P.O.), 1,3-butylene glycol, trehalose, PEG-20, isotridecyl isononanoate, and water. The unit of the compounding amount in Tables 1 to 4 below is "% by mass".

(Evaluation of damage suppression 1)
Evaluation of inhibition of heat damage to hair was carried out as follows. A hair bundle having a history of treatment with an oxidative hair dye was collected from a Japanese woman, and a hair bundle having a length of 20 to 30 cm and a weight of about 0.5 g was prepared. This hair tress was subjected to the following treatments (1) to (2) seven times. (1) The hair was immersed in the hair composition of Example 1, Comparative Example 1a, or Comparative Example 1b for 3 minutes, then washed with water and dried using a dryer. (2) Set the temperature of a pair of heating elements in a commercially available hair iron (hair iron “TIP Shape Iron SL” manufactured by T.I. Pros Co., Ltd.) to 180 ° C., and heat the hair after drying 10 times between the heating elements. Heat in seconds. Then, the initial elastic modulus was measured for 30 hairs in each hair bundle after the treatment, and the average value was calculated.

(Evaluation of damage suppression 2)
Evaluation of inhibition of hair damage by alkaline bleaching agents was carried out as follows. A hair bundle having a history of treatment with an oxidative hair dye was collected from a Japanese woman, and a hair bundle having a length of 20 to 30 cm and a weight of about 3 g was prepared. This hair tress was subjected to the following treatments (1) to (3). (1) After being immersed in the hair composition of Example 2 or Comparative Example 2 for 5 minutes, the hair was washed with water and dried using a dryer. (2) After applying about 9 g of a bleaching agent (mixture of 1 part by mass of "Powder Bleach" manufactured by Milbon and 3 parts by mass of "Ordeve OXIDANT 6%" manufactured by Milbon) to the hair tress, it was left for 30 minutes. (3) After removing the bleaching agent from the tresses by washing with water, the tresses are dried using a drier. Then, the initial elastic modulus was measured for 44 or 56 hairs in each hair tress after treatment, and the average value was calculated.

(Hair repair evaluation 1)
A hair bundle having a history of treatment with an oxidative hair dye was collected from a Japanese woman, and a 20 to 30 cm long hair bundle weighing about 2 g was prepared. This hair bundle was immersed in the hair composition of Example 3 or Comparative Example 3 for 5 minutes, washed with water, and dried using a dryer. Then, the initial elastic modulus was measured for 40 hairs in each hair bundle after drying, and the average value was calculated.

(Hair repair evaluation 2)
A hair bundle having a history of treatment with an oxidative hair dye was collected from a Japanese woman, and a hair bundle having a length of 20 to 30 cm and weighing about 1 g was prepared. This hair bundle was immersed in the hair composition of Examples 4a, 4b or Comparative Example 4 for 4 hours, washed with water, and left to dry at room temperature. Then, the initial elastic modulus was measured for 29 hairs in each hair bundle after drying, and the average value was calculated.

(Measurement of initial elastic modulus)
The measurement of the initial elastic modulus in the above "Hair Repair Evaluation", "Damage Suppression Evaluation 1", and "Damage Suppression Evaluation 2" was performed as follows. Each hair was cut to a length of 20 mm, and tape was attached to both ends. After measuring the diameter of the hair, the hair sample was immersed overnight in a petri dish containing distilled water. After that, the initial elastic modulus was measured using TENSILON YTM-II-20 (manufactured by ORIENTEC) to measure the stress when stretched at a speed of 2 mm / min, and the obtained data was analyzed by an analysis program (X axis is stretch rate, The initial inclination when the Y-axis is the stress, that is, the so-called hook inclination is calculated).

The results of "Evaluation 1 of Damage Inhibition" are shown in Table 1 below together with the components blended in the hair compositions of Example 1 and Comparative Examples 1a to 1b. As shown in Table 1, Example 1, in which trehalose as component (A) and polyethylene glycol (PEG-20) having an average addition mole number of ethylene oxide as component (B) of 6 or more were blended, had initial elasticity. It was a high rate result. In other words, Example 1 was excellent in suppressing hair damage due to heat.

The results of "Evaluation 2 of Damage Suppression" are shown in Table 2 below together with the components blended in the hair compositions of Example 2 and Comparative Example 2. As shown in Table 2, Example 2 in which trehalose as component (A) and polyethylene glycol (PEG-20) having an average addition mole number of ethylene oxide as component (B) of 6 or more were blended had initial elasticity. It was a high rate result. In other words, Example 2 was excellent in suppressing hair damage caused by the alkaline bleaching agent.

The results of "Hair Repair Evaluation 1" are shown in Table 3 below together with the components blended in the hair compositions of Example 3 and Comparative Example 3. As shown in Table 3, Example 3 in which trehalose as component (A) and polyethylene glycol (PEG-20) having an average addition mole number of ethylene oxide as component (B) of 6 or more were blended had initial elasticity. It was a high rate result. In other words, Example 3 was excellent in repairing hair.

The results of "Hair Repair Evaluation 2" are shown in Table 4 below together with the components blended in the hair compositions of Examples 4a, 4b and Comparative Example 4. As shown in Table 4, Examples 4a and 4b in which trehalose as component (A) and polyethylene glycol (PEG-20) having an average addition mole number of ethylene oxide as component (B) of 6 or more were blended, The result was a high initial elastic modulus. In other words, both Examples were excellent in repairing hair. In addition, Example 4b, in which isotridecyl isononanoate was blended as the component (C), had the highest initial elastic modulus and was excellent in repairing hair.

(Reference example)
The hair compositions of Reference Examples 1 to 4 were prepared using isodecyl isononanoate, isotridecyl isononanoate, isononyl isononanoate, and cyclopentasiloxane as shown in Table 5 below. In addition, the unit of the compounding amount in Table 5 below is "% by mass".

(Differential scanning calorimetry (DSC) measurement)
Hair that had been treated with an oxidative hair dye was collected from a Japanese woman, and a hair bundle of about 1.0 g was prepared. After this hair tress was immersed in any of the hair compositions of Reference Examples 1 to 4 for 5 minutes, the composition was wiped off from the surface of the hair and left overnight to dry. After cutting this dried hair bundle, the endothermic peak when the α-crystal of the hair melts was measured using a DSC measurement device ("SC-60Plus" manufactured by Shimadzu Corporation) at a temperature increase rate of 10 ° C./min. and measured. The measurement was taken twice from the cut hair, and the average value of the two measurements was calculated.

The results of "DSC measurement" are shown in Table 5 below together with the components blended in the hair compositions of Reference Examples 1-4. As shown in Table 5, Reference Examples 1 and 2 in which isodecyl isononanoate or isotridecyl isononanoate, which is the component (C), was blended had higher DSC measurement values than Reference Examples 3 and 4, and the measurement values of Reference Example 2 were This was the highest result. In other words, isodecyl isononanoate was superior, and isotridecyl isononanoate was superior with respect to inhibition of hair damage.

Claims (8)

A hair composition characterized by containing the following components (A) and (B).
(A) one or more selected from trehalose, xylose, xylitol and maltitol (B) polyethylene glycol having an average number of added moles of ethylene oxide of 6 or more The composition for hair according to claim 1, wherein trehalose is blended as the component (A). 3. The composition for hair according to claim 1, wherein polyethylene glycol having an average number of added moles of ethylene oxide of 12 or more is blended as the component (B). The composition for hair according to any one of claims 1 to 3, wherein the average number of added moles of ethylene oxide as the component (B) is 100 or less. The composition for hair according to any one of claims 1 to 4, wherein the blending amount of the component (A) is larger than the blending amount of the component (B). The composition for hair according to any one of claims 1 to 5, wherein the following component (C) is blended.
(C) isotridecyl isononanoate and/or isodecyl isononanoate The hair composition according to any one of claims 1 to 6, which is used as a rinse-off treatment, a leave-in treatment or a hair cleanser. A method for treating hair, which comprises using the composition for hair according to any one of claims 1 to 7.