Hair composition and hair treatment method

Abstract

Suitable for repairing damaged hair and preventing damage caused by heat treatments A composition and a method of treating hair using the composition are provided. [Solution] The hair composition contains one or more selected from trehalose, xylose, xylitol, and maltitol, and polyethylene glycol having an average number of moles of ethylene oxide added of 6 or more, and preferably further contains isotridecyl isononanoate and / or isodecyl isononanoate. The hair treatment method uses the hair composition.

Description

Technical Field

[0001] The present invention relates to a hair composition used for a rinsing treatment, a non-rinsing treatment, a hair cleaning agent, and the like.

Background Art

[0002] Hair is damaged by physical treatments such as brushing, drying, hot ironing, hair coloring, and permanent waving, heat treatments, or chemical treatments. There is a need for protecting hair to suppress such damage or repairing damaged hair.

[0003] Patent Document 1 proposes a composition containing at least one sugar selected from specific monosaccharides and derivatives of the monosaccharides, and Patent Document 2 proposes a composition containing a plant extract and a sugar. And Patent Documents 1 and 2 describe that these compositions can suppress damage to hair caused by heat treatment or chemical treatment and repair damaged hair. Further proposals other than the above compositions are desired for protecting and repairing hair.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] 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.

Means for Solving the Problems

[0006] As a result of diligent research by the inventors, we have discovered that when incorporating polyethylene glycol, which is known to suppress damage to carboxymethylalanyl disulfide keratin and to suppress hair damage and repair damaged hair, and which also provides moisturizing properties, the combined use of trehalose, which has been shown to suppress damage to carboxymethylalanyl disulfide keratin, and a specific polyethylene glycol is excellent in suppressing hair damage and repairing damaged hair, thus completing the present invention.

[0007] In other words, the hair composition 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 with an average number of moles of ethylene oxide added of 6 or more.

[0008] The hair composition according to the present invention is preferably one which contains trehalose as component (A).

[0009] The hair composition according to the present invention preferably contains polyethylene glycol as component (B) having an average number of moles of ethylene oxide added of 12 or more. When the average number of moles of ethylene oxide added of 12 or more is 12 or more, it is more suitable for suppressing hair damage and repairing hair.

[0010] Furthermore, the hair composition according to the present invention is preferably one in which polyethylene glycol is used as component (B) and the average number of moles of ethylene oxide added is 100 or less. When the average number of moles of ethylene oxide added is 100 or less, it penetrates easily into the inside of the hair, making it suitable for suppressing and repairing internal damage.

[0011] In the hair composition according to the present invention, it is preferable that the amount of component (A) is greater than the amount of component (B). This ratio is more suitable for suppressing hair damage and repairing hair.

[0012] The hair composition according to the present invention is preferably one that contains the following component (C). The inclusion of the following component (C) is suitable for hair repair. (C) Isotridecyl isononanoate and / or isodecyl isononanoate

[0013] The hair composition according to the present invention can be used, for example, as a rinse-off treatment, a leave-in treatment, or a hair cleansing agent.

[0014] The hair treatment method according to the present invention is characterized by using the hair composition according to the present invention. [Effects of the Invention]

[0015] The hair composition according to the present invention contains trehalose and a specific polyethylene glycol, and is therefore excellent in suppressing hair damage and repairing hair. [Modes for carrying out the invention]

[0016] 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). (A) One or more selected from trehalose, xylose, xylitol, and maltitol (B) Polyethylene glycol with an average number of moles of ethylene oxide added of 6 or more.

[0017] The hair composition according to this embodiment is preferably one that contains the following component (C). (C) Isotridecyl isononanoate and / or isodecyl isononanoate

[0018] Furthermore, if permissible in practical use, ingredients commonly found in known hair compositions may be added.

[0019] In the hair composition of the present embodiment, the blending amount of component (A) is preferably more than the blending amount of polyethylene glycol in which the average number of added moles of ethylene oxide as component (B) is 6 or more. With this blending amount relationship, it is more suitable for suppressing hair damage and repairing hair. The "blending amount of component (A) / blending amount of component (B)", which is the blending amount of component (A) relative to the blending amount of component (B), is preferably 1.5 or more, preferably 2.0 or more, and more preferably 2.5 or more. On the other hand, the upper limit of the "blending amount of component (A) / blending amount of component (B)" is, for example, 5.0.

[0020] In the hair composition of the present embodiment, the blending amount of the above-mentioned component (A) is preferably 0.03% by mass or more and 5% by mass or less, more preferably 0.05% by mass or more and 3% by mass or less, and still more preferably 0.07% by mass or more and 1% by mass or less. When it is 0.03% by mass or more, the suppression of hair damage and hair repair are more excellent. When it is 5% by mass or less, the cost of the hair composition of the present embodiment can be reduced.

[0021] 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 hair repair and suppression of hair damage.

[0022] In the hair composition of the present embodiment, the blending amount of trehalose as component (A) is preferably more than the blending amount of polyethylene glycol in which the average number of added moles of ethylene oxide as component (B) is 6 or more. With this blending amount relationship, it is more suitable for suppressing hair damage and repairing hair. The "blending amount of component (a) / blending amount of component (B)", which is the blending amount of trehalose relative to the blending amount of component (B), is preferably 1.5 or more, preferably 2.0 or more, and more preferably 2.5 or more. On the other hand, the upper limit of the "blending amount of component (a) / blending amount of component (B)" is, for example, 5.0.

[0023] In the hair composition of this embodiment, the amount of trehalose blended is preferably 0.03% to 5% by mass, more preferably 0.05% to 3% by mass, and more preferably 0.07% to 1% by mass. A concentration of 0.03% or more by mass provides superior hair damage suppression and hair repair. A concentration of 5% or less by mass allows for cost reduction of the hair composition of this embodiment.

[0024] As described above, the hair composition of this embodiment contains polyethylene glycol having an average addition mole number of (B) ethylene oxide of 6 or more. By incorporating this polyethylene glycol, it is possible to impart a moisturizing effect to the hair, as is well known. Furthermore, when the average addition mole number is 6 or more, it is possible to suppress hair damage and repair hair more effectively compared to polyethylene glycol with an average addition mole number of less than 6.

[0025] In polyethylene glycol, which is component (B) above, the average number of moles of ethylene oxide added is preferably 12 or more, and more preferably 16 or more. If the average number of moles added is 12 or more, hair damage suppression and hair repair are better.

[0026] The average number of moles added is, for example, 400 or less, preferably 100 or less, more preferably 60 or less, and more preferably 40 or less. The smaller the average number of moles added, the more effective it is to suppress damage not only to the hair surface but also to the inside of the hair, and to repair the hair.

[0027] Examples of the above 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, and PEG-450 (wherein "PEG" means polyethylene glycol, and the integer following "PEG-" represents the average number of moles of ethylene oxide added to polyethylene glycol).

[0028] The hair composition of this embodiment may contain one or more types of polyethylene glycol selected as component (B). The amount of component (B) in the hair composition is preferably 0.01% by mass or more and 0.2% by mass or less, more preferably 0.01% by mass or more and 0.1% by mass or less, and more preferably 0.02% by mass or more and 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 better, and when it is 0.2% by mass or less, the impact on the feel of the hair caused by the inclusion of component (B) is kept to a minimum.

[0029] The hair composition of this embodiment is preferably one containing (C) isotridecyl isononanoate and / or isodecyl isononanoate, and preferably one containing isotridecyl isononanoate. The inclusion of component (C) is suitable for hair repair.

[0030] In the hair composition of this embodiment, the amount of component (C) is preferably 0.03% by mass or more and 5% by mass or less, more preferably 0.04% by mass or more and 3% by mass or less, and more preferably 0.07% by mass or more and 1% by mass or less. If the amount is 0.03% by mass or more, hair repair is more excellent. If the amount is 5% by mass or less, the cost of the hair composition of this embodiment can be reduced.

[0031] As described above, the hair composition of this embodiment may further contain raw materials that are used in known hair compositions. These raw materials are appropriately selected depending on the intended use of the hair composition and include, for example, anionic surfactants, cationic surfactants, amphoteric surfactants, nonionic surfactants, higher alcohols, polyhydric alcohols, oils and fats, ester oils, silicones, and polymer compounds.

[0032] Examples of anionic surfactants include alkyl ether carboxylates, alkane sulfonates, α-olefin sulfonates, alkyl sulfates, and alkyl ether sulfates. When incorporating anionic surfactants into a hair composition, it is preferable to include one or more types. The concentration of anionic surfactants in a hair composition should be appropriately set according to the intended use of the composition, but for example, it is between 0.1% by mass and 20% by mass.

[0033] Examples of cationic surfactants include fatty acid amidoamine salts, ester-containing tertiary amine salts, long-chain alkyltrimethylammonium salts, and dilong-chain alkyldimethylammonium salts. When incorporating cationic surfactants into a hair composition, it is preferable to include one or more types. The concentration of cationic surfactants in a hair composition should be appropriately set according to the intended use of the composition, but for example, it is between 0.1% by mass and 20% by mass.

[0034] Examples of amphoteric surfactants include alkyldimethylaminoacetic acid betaine, fatty acid amidopropyldimethylaminoacetic acid betaine, and alkyldihydroxyethylaminoacetic acid betaine. When incorporating amphoteric surfactants into a hair composition, it is preferable to include one or more types. The concentration of amphoteric surfactants in a hair composition should be appropriately set according to the intended use of the composition, but for example, it is between 0.1% by mass and 10% by mass.

[0035] 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, and sucrose fatty acid esters. When incorporating nonionic surfactants into a hair composition, it is preferable to include one or more types. The concentration of nonionic surfactants in a hair composition should be appropriately set according to the intended use of the composition, but for example, it is typically between 0.1% by mass and 20% by mass.

[0036] Examples of higher alcohols include cetanol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, and myristyl alcohol. When incorporating higher alcohols into a hair composition, it is preferable to include one or more types. The concentration of higher alcohols in a hair composition should be appropriately set according to the intended use of the composition, but for example, it is between 1% by mass and 10% by mass.

[0037] Examples of polyhydric alcohols include ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, glycerin, diglycerin, and butylene glycol. When incorporating polyhydric alcohols into a hair composition, it is preferable to include one or more types. The concentration of polyhydric alcohols in a hair composition should be appropriately set according to the intended use of the composition, but for example, it is between 0.1% by mass and 20% by mass.

[0038] Examples of oils and fats include avocado oil, olive oil, shea butter oil, evening primrose oil, camellia oil, and rosehip oil. When incorporating oils and fats into a hair composition, it is preferable to include one or more types. The concentration of oils and fats in a hair composition should be appropriately set according to the intended use of the composition, but for example, it should be between 0.1% by mass and 5% by mass.

[0039] Examples of ester oils include isopropyl myristate, isopropyl palmitate, cetyl palmitate, octyldodecyl myristate, ethyl isostearate, cetyl 2-ethylhexanoate, hexyl isostearate, pentaerythritol tetra-2-ethylhexanoate, myristyl lactate, diisostearyl malate, and cholesteryl stearate. When incorporating ester oils into a hair composition, it is preferable to include one or more types. The concentration of ester oils in a hair composition should be appropriately set according to the intended use of the composition, but for example, it is between 0.1% by mass and 10% by mass.

[0040] Examples of silicones include dimethyl silicone, cyclic dimethyl silicone, and amino-modified silicone. When incorporating silicone into a hair composition, it is preferable to include one or more types. The concentration of silicone in a hair composition should be appropriately set according to the intended use of the composition, but for example, it is between 0.1% by mass and 50% by mass.

[0041] Examples of synthetic polymer compounds include polyacrylic acid polymers (carboxyvinyl polymer, polyacrylamide, sodium polyacrylate, (acrylic acid / alkyl methacrylate) copolymer). Examples of semi-synthetic polymer compounds include cellulose derivatives (hydroxyethylcellulose, cationized cellulose, etc.), starch derivatives (hydroxypropyl starch phosphate, etc.), and guar gum derivatives (cationized guar gum, hydroxypropylated guar gum, etc.). Examples of natural polymers include sodium hyaluronate. When incorporating polymer compounds (synthetic polymer compounds, semi-synthetic polymer compounds, natural polymer compounds) into a hair composition, it is preferable to incorporate one or more types. The concentration of polymer compounds in a hair composition should be appropriately set according to the intended use of the composition, but for example, it should be between 0.1% by mass and 5% by mass.

[0042] The hair composition of this embodiment is used in a hair treatment method by applying it to the hair. For example, the hair composition of this embodiment can be used as (1) a rinse-off treatment applied to wet hair and then rinsed with water, (2) a leave-in treatment applied to wet or dry hair and then used without rinsing with water, or (3) a hair cleansing agent applied to wet hair and then rinsed with water to clean the surface of the hair.

[0043] When the above hair composition is used as a rinse-off treatment, a leave-in treatment, or a hair cleanser, examples of combinations of raw materials to be blended with components (A) and (B) are as follows: In rinse-off treatments, the combination of raw materials to be blended includes cationic surfactants, nonionic surfactants, higher alcohols, polyhydric alcohols, oils and fats, ester oils, silicones, synthetic polymer compounds, and water. In leave-in treatments, the combination of raw materials to be blended includes cationic surfactants, nonionic surfactants, polyhydric alcohols, oils and fats, ester oils, silicones, synthetic polymer compounds, natural polymer compounds, and water. In hair cleansers, the combination of raw materials to be blended includes anionic surfactants, amphoteric surfactants, nonionic surfactants, polyhydric alcohols, semi-synthetic polymer compounds, and water.

[0044] The dosage form of the hair composition of this embodiment is not particularly limited and can be liquid, cream, gel, foam, or mist. Furthermore, if the hair composition of this embodiment has an oil phase and an aqueous phase, it may be either an oil-in-water type dosage form where the outer phase is water, or an oil-in-water type dosage form where the outer phase is oil. In the case of an oil-in-water type dosage form, the amount of water is, for example, 60% by mass or more. In the case of an oil-in-water type dosage form, the amount of water is, for example, 10% by mass or less.

[0045] The pH of the hair composition of this embodiment at 25°C should be set appropriately, but for example, it is between 4.0 and 7.0. [Examples]

[0046] The present invention will be described in detail below based on examples, but the present invention should not be interpreted as being limited based on the description of these examples.

[0047] (Hair composition) The hair compositions of Examples 1-3 and Comparative Examples 1a, 1b, 2, and 3 were prepared using trehalose, PEG-20, and water, as shown in Tables 1-3 below. The hair compositions of Examples 4a, 4b, and Comparative Example 4 were prepared using polyoxyethylene hydrogenated castor oil (30 E.O.), polyoxyethylene polyoxypropylene cetyl ether (10 E.O.) (4 P.O.), 1,3-butylene glycol, trehalose, PEG-20, isotridecyl isononanoate, and water, as shown in Table 4 below. Note that the units for the amounts in Tables 1-4 below are "mass%".

[0048] (Damage suppression evaluation 1) The suppression of heat-induced hair damage was evaluated as follows. Hair with a history of treatment with oxidative hair dye was collected from Japanese women, and hair bundles of approximately 20-30 cm in length and 0.5 g in weight were prepared. The following treatments (1) and (2) were performed on these hair bundles seven times. (1) The hair bundles were immersed in the hair composition of Example 1, Comparative Example 1a, or Comparative Example 1b for 3 minutes, then rinsed with water and dried using a hair dryer. (2) The pair of heating elements of a commercially available hair iron (TIP Shape Iron SL, manufactured by T.I. Pros Co., Ltd.) were set to 180°C, and the dried hair was heated between the heating elements for 10 seconds. The initial elastic modulus was measured for 30 strands of hair in each treated hair bundle, and the average value was calculated.

[0049] (Damage suppression evaluation 2) The suppression of hair damage by alkaline bleaching agents was evaluated as follows. Hair with a history of treatment with oxidative hair dyes was collected from Japanese women, and hair bundles of approximately 20-30 cm in length and 3 g in weight were prepared. The following treatments (1) to (3) were performed on these hair bundles: (1) After immersing in the hair composition of Example 2 or Comparative Example 2 for 5 minutes, the bundles were rinsed with water and then dried with a hairdryer. (2) Approximately 9 g of bleaching agent (a mixture of 1 part by mass of Milbon's "Powder Bleach" and 3 parts by mass of Milbon's "Ordeve OXIDANT 6%") was applied to the hair bundles and left for 30 minutes. (3) After removing the bleaching agent from the hair bundles by rinsing with water, the bundles were dried with a hairdryer. The initial elastic modulus was measured for 44 or 56 strands of hair in each treated hair bundle, and the average value was calculated.

[0050] (Hair repair evaluation 1) Hair with a history of treatment with oxidative hair dye was collected from Japanese women, and hair bundles of approximately 20-30 cm in length and 2 g in weight were prepared. These hair bundles were immersed in the hair composition of Example 3 or Comparative Example 3 for 5 minutes, then rinsed with water and dried using a hairdryer. The initial elastic modulus was then measured for 40 strands of hair in each dried hair bundle, and the average value was calculated.

[0051] (Hair repair evaluation 2) Hair with a history of treatment with oxidative hair dye was collected from Japanese women, and hair bundles of approximately 20-30 cm in length and weighing about 1 g were prepared. These hair bundles were immersed in the hair composition of Example 4a, 4b, or Comparative Example 4 for 4 hours, then rinsed with water and left to dry at room temperature. The initial elastic modulus was then measured for 29 strands of hair in each dried hair bundle, and the average value was calculated.

[0052] (Measurement of initial modulus of elasticity) The initial modulus of elasticity was measured in the "Evaluation of Hair Repair," "Evaluation of Damage Suppression 1," and "Evaluation of Damage Suppression 2" sections described above, as follows: Each hair strand was cut to a length of 20 mm, and tape was attached to both ends. After measuring the diameter of the hair strand, the hair sample was immersed overnight in a petri dish containing distilled water. Subsequently, the initial modulus of elasticity was determined by measuring the stress when the hair was stretched at a speed of 2 mm / min using a TENSILON YTM-II-20 (manufactured by ORIENTEC). The obtained data was then analyzed using an analysis program (which calculates the initial slope, or Hooke's slope, with the X-axis representing the stretch rate and the Y-axis representing the stress).

[0053] The results of "Damage Inhibition Evaluation 1" are shown in Table 1 below, along with the components incorporated into the hair compositions of Example 1 and Comparative Examples 1a-1b. As shown in Table 1, Example 1, which incorporated trehalose (component A) and polyethylene glycol (PEG-20) with an average addition number of ethylene oxide moles of 6 or more (component B), showed a high initial modulus of elasticity. In other words, Example 1 was excellent at suppressing hair damage caused by heat.

[0054] [Table 1]

[0055] The results of "Damage Inhibition Evaluation 2" are shown in Table 2 below, along with the components incorporated into the hair compositions of Example 2 and Comparative Example 2. As shown in Table 2, Example 2, which incorporated trehalose (component A) and polyethylene glycol (PEG-20) with an average addition number of ethylene oxide moles of 6 or more (component B), showed a high initial modulus of elasticity. In other words, Example 2 was excellent at suppressing hair damage caused by alkaline bleaching agents.

[0056] [Table 2]

[0057] The results of "Hair Repair Evaluation 1" are shown in Table 3 below, along with the components incorporated into the hair compositions of Example 3 and Comparative Example 3. As shown in Table 3, Example 3, which incorporated trehalose (component A) and polyethylene glycol (PEG-20) with an average addition number of ethylene oxides of 6 or more (component B), showed a high initial modulus of elasticity. In other words, Example 3 was excellent in repairing hair.

[0058] [Table 3]

[0059] The results of "Hair Repair Evaluation 2" are shown in Table 4 below, along with the components incorporated into the hair compositions of Examples 4a, 4b, and Comparative Example 4. As shown in Table 4, Examples 4a and 4b, which incorporated trehalose (component A) and polyethylene glycol (PEG-20) with an average addition mole of ethylene oxide of 6 or more (component B), showed high initial elastic modulus. In other words, both examples were excellent at repairing hair. Furthermore, Example 4b, which incorporated isotridecyl isononanoate (component C), had the highest initial elastic modulus and was excellent at repairing hair.

[0060] [Table 4]

[0061] (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. The units for the amounts in Table 5 below are "mass%".

[0062] (Differential Scanning Calorimetry (DSC) measurement) Hair samples with a history of oxidative hair dye treatment were collected from Japanese women, and hair bundles of approximately 1.0 g were prepared. These hair bundles were immersed in one of the hair compositions from Reference Examples 1 to 4 for 5 minutes, then the composition was wiped off the surface of the hair, and the bundles were left overnight to dry. After cutting the dried hair bundles, the endothermic peak when the α-crystals of the hair melted was measured using a DSC measuring device (Shimadzu Corporation "SC-60Plus") at a heating rate of 10°C / min. Measurements were taken twice from the cut hair, and the average of the two measurements was calculated.

[0063] The results of the "DSC measurement" are shown in Table 5 below, along with the components incorporated into the hair compositions of Reference Examples 1-4. As shown in Table 5, Reference Examples 1 and 2, which contain component (C), isodecyl isononanoate or isotridecyl isononanoate, had higher DSC measurement values ​​than Reference Examples 3 and 4, with Reference Example 2 showing the highest result. In other words, isodecyl isononanoate was superior in suppressing hair damage, and isotridecyl isononanoate was even superior.

[0064] [Table 5]

Claims

1. The following ingredients (A) and (B) are included: The following ingredient (A) contains trehalose: The following ingredient (B) is included, consisting of one or more selected from PEG-6, PEG-16, PEG-20, PEG-30, PEG-32, PEG-40, PEG-60, PEG-75, PEG-90, PEG-150, PEG-180, PEG-220, PEG-240, and PEG-450. A hair composition (excluding tablet-type freeze-dried cosmetics) characterized by its use as a hair cleansing agent. (A) One or more selected from trehalose, xylose, xylitol, and maltitol (B) Polyethylene glycol with an average number of moles of ethylene oxide added of 6 or more.

2. The following ingredients (A) and (B) are included: The following ingredient (A) contains xylose, The following ingredient (B) is formulated by combining one or more selected from PEG-6, PEG-8, PEG-12, PEG-16, PEG-20, PEG-30, PEG-32, PEG-40, PEG-75, PEG-90, PEG-150, PEG-220, PEG-240, PEG-400, and PEG-450. A hair composition characterized by its use as a rinse-off treatment, a leave-in treatment, or a hair cleansing agent. (A) One or more selected from trehalose, xylose, xylitol, and maltitol (B) Polyethylene glycol with an average number of moles of ethylene oxide added of 6 or more.

3. The hair composition according to claim 1 or 2, wherein the component (B) is polyethylene glycol having an average number of moles of ethylene oxide added of 12 or more.

4. The hair composition according to any one of claims 1 to 3, wherein the component (B) is polyethylene glycol having an average number of moles of ethylene oxide added of 100 or less.

5. The hair composition according to any one of claims 1 to 4, wherein the amount of component (A) is greater than the amount of component (B).

6. A hair composition according to any one of claims 1 to 5, comprising the following ingredient (C). (C) Isotridecyl isononanoate and / or isodecyl isononanoate

7. A hair treatment method characterized by using the hair composition described in any one of claims 1 to 6.

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