Hair composition and hair treatment method

Abstract

To provide a hair composition capable of alleviating waviness or curliness of hair, and to provide a hair treatment method using the hair composition.SOLUTION: The present invention provides a hair composition for use in alleviating waviness or curliness of hair, the hair composition comprising one or more organic compounds that satisfy the following condition 1 and condition 2, as well as a hair treatment method using the hair composition. Condition 1: an IOB value of 0.50 or more and 1.70 or less. Condition 2: (0.32×organic value (OV))+195-inorganic value (IV)≥0.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a hair composition and a hair treatment method.

Background Art

[0002] Hair has various shapes such as straight, curly, wavy, and kinked. The various hair shapes are known to be due to congenital factors and acquired factors such as aging and environmental changes.

[0003] Hair shape affects the appearance of the hairstyle and the ease of handling the hair. Therefore, technologies have been developed to change the hair shape for the purpose of approaching the desired hairstyle or making the hair easier to handle. For example, Patent Document 1 proposes a technique capable of permanently straightening natural curly or frizzy hair with a keratin-reducing substance, a specific guanidine derivative or an acid addition salt thereof, and a specific nonionic surfactant.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] As described above, although hair has various shapes, especially when there is curly or wavy hair, problems such as a rough texture and poor finger combability when passing hands through the hair, and difficulty in styling the entire hair may occur. In order to solve such problems, there is a demand for making the shapes of curly or wavy hair closer to a straight shape.

[0006] However, in response to the above demands, in the technique using a reducing agent as disclosed in Patent Document 1 or the like, hair damage may occur, and conversely, the overall coherence of the hair may deteriorate. Therefore, there is a demand for a proposal of a new technique for relaxing the shape of frizzy hair or wavy hair.

[0007] Based on the above circumstances, an object of the present invention is to provide a hair composition capable of relaxing the frizz or wave of hair, and a hair treatment method using the hair composition.

Means for Solving the Problems

[0008] As a result of intensive studies, the present inventors have found that a specific organic compound having a hydrophilic group and a hydrophobic group in its structure can relax the frizz or wave of hair.

[0009] Furthermore, as a result of further detailed studies, the present inventors have found that when a hair composition containing one or more organic compounds having an IOB value within a specific range and having specific values for the organic value (OV) and the inorganic value (IV) is used on frizzy or wavy hair, the frizz or wave of the hair can be relaxed and the shape of the frizzy or wavy hair can be made closer to a straight line, and thus the present invention has been completed.

[0010] The present invention includes the following inventions.

[0011] The hair composition of [1] is for use in relaxing the frizz or wave of hair, in which one or more organic compounds satisfying the following Conditions 1 and 2 are blended. Condition 1: The IOB value is 0.50 or more and 1.70 or less Condition 2: (0.32 × organic value (OV)) + 195 - inorganic value (IV) ≥ 0

[0012] The hair composition of [2] is the hair composition of [1], and as the organic compound satisfying the above Conditions 1 and 2, It is a composition in which one or more organic compounds satisfying the following condition 1-1 and one or more organic compounds satisfying condition 1-2 are blended, or Is it a composition in which one or more organic compounds satisfying the following condition 1-3 and one or more organic compounds satisfying condition 1-4 are blended, or It is a composition in which two or more organic compounds satisfying the following condition 1-5 are blended. Condition 1-1: The IOB value is 0.50 or more and less than 0.70 Condition 1-2: The IOB value is 0.70 or more and 1.70 or less Condition 1-3: The IOB value is 0.50 or more and less than 0.90 Condition 1-4: The IOB value is 0.90 or more and 1.70 or less Condition 1-5: The IOB value is 0.70 or more and 0.90 or less

[0013] [3] The hair composition is a hair composition selected from any one of [1] or [2], and as the organic compound satisfying the above-mentioned condition 1 and condition 2, polyoxyethylene lauryl ether (2 E.O.), cyclohexane-1,4-dicarboxylic acid bisethoxydiglycol, benzyl alcohol, phenoxyethanol, diethyl succinate, and diethylene glycol monoethyl ether are blended in one or more selected from them.

[0014] [4] The hair composition is a hair composition selected from any one of [1] to [3], and the organic compound satisfying the above-mentioned condition 1 and condition 2 is blended in an amount of 0.5% by mass or more.

[0015] [5] The hair composition is for relaxing the odor or wave of hair, in which one or more selected from polyoxyethylene lauryl ether (2 E.O.), cyclohexane-1,4-dicarboxylic acid bisethoxydiglycol, benzyl alcohol, phenoxyethanol, diethyl succinate, and diethylene glycol monoethyl ether are blended.

[0016] The hair composition of [6] is a hair composition selected from any one of [1] to [5], and is for relaxing the kink or wave of straightened hair.

[0017] [7] The hair treatment method is a hair treatment method using a hair composition selected from any one of [1] to [6].

Advantages of the Invention

[0018] According to the hair composition of the present invention, a hair composition capable of relaxing the kink or wave of hair can be provided. Further, according to the hair treatment method of the present invention, a hair treatment method using a hair composition capable of relaxing the kink or wave of hair can be provided.

Brief Description of the Drawings

[0019]

Figure 1

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Mode for Carrying Out the Invention

[0020] Based on the embodiment of the present invention (hereinafter referred to as "the present embodiment"), the present invention will be described below.

[0021] <Hair composition> The hair composition of the present embodiment is for use in relaxing the kinks or undulations of hair.

[0022] Here, relaxing the kinks or undulations of hair means making the shape of kinked or undulated hair approach a straight line. By relaxing the kinks or undulations of hair, the coherence and manageability of the whole hair are improved, and the ease of hair styling is improved. The kinked or undulated hair refers to hair having a wave shape (such as wavy hair), a curly shape (curly hair), a undulated shape (undulated hair), or a part of the hair having a curl shape (including an arc shape).

[0023] (Organic compound satisfying Condition 1 and Condition 2) The hair composition of the present embodiment is blended with one or more organic compounds that satisfy the following Conditions 1 and 2. Condition 1: The IOB value is 0.50 or more and 1.70 or less Condition 2: (0.32 × organic value (OV)) + 195 - inorganic value (IV) ≥ 0

[0024] Hereinafter, an organic compound that satisfies Condition 1 and Condition 2 incorporated in the hair composition of the present embodiment may be referred to as a "specific organic compound".

[0025] The IOB value (Inorganic Organic Balance) value in the above Condition 1 is widely known as an index representing the polarity of an organic compound and is based on the organic concept diagram proposed by Fujita Akira. It is the ratio of the inorganic value (IV) to the organic value (OV), that is, "IOB value = IV / OV". The higher the IOB value, the more polar the organic compound, and the lower the IOB value, the less polar the organic compound. Note that OV is the value of the number of carbon atoms contained in the organic compound × 20. Also, IV is the sum of the IVs in each substituent of the organic compound. For IV, for example, the numerical values described in "Organic Conceptual Diagram - Basics and Applications - (1984) Yoshio Koda: Sankyo Publishing Co., Ltd." can be referred to.

[0026] Here, as an example of calculating the IOB value, for diethylene glycol monoethyl ether (CH3CH2OCH2CH2OCH2CH2OH), which is a specific organic compound, IV is 195 (= 100 (-OH group) + 20 (-O- group) + 75 (-OCH2CH2- group)), and OV is 120 (= 6 (number of carbon atoms) × 20)), so the IOB value is 1.63. Also, for polyoxyethylene lauryl ether (2E.O.) (CH3(CH2) 11 (OCH2CH2)2OH), which is a specific organic compound, IV is 195 (= 100 (-OH group) + 20 (-O- group) + 75 (-OCH2CH2- group)), and OV is 320 (= 16 (number of carbon atoms) × 20)), so the IOB value is 0.61.

[0027] For the values of OV and IV in the above Condition 2, the values of the inorganic value (IV) and the organic value (OV) in Condition 1 described above may be used respectively.

[0028] The specific organic compound formulated in the hair composition of this embodiment satisfies Condition 1 and Condition 2, and further, it may be an organic compound composed of carbon atoms (C), hydrogen atoms (H), and oxygen atoms (O) and not containing a carboxyl group (-COOH) in its structure.

[0029] Examples of specific organic compounds formulated in the hair composition of this embodiment include diethoxyethyl adipate (IOB value: 0.57, OV: 280, IV: 160), polyoxyethylene tridecyl ether (2 E.O.) (IOB value: 0.57, OV: 340, IV: 195), menthol (IOB value: 0.58, OV: 190, IV: 110), methyl isobutyl ketone (IOB value: 0.59, OV: 110, IV: 65), polyoxyethylene lauryl ether (2 E.O.) (IOB value: 0.61, OV: 320, IV: 195), polyoxyethylene tridecyl ether (3 E.O.) (IOB value: 0.71, OV: 380, IV: 270), phenylethyl alcohol (IOB value: 0.72, OV: 160, IV: 115), PEG-2 laurate (IOB value: 0.73, OV: 320, IV: 235), benzyloxyethanol (IOB value: 0.75, OV: 180, IV: 135), polyoxyethylene lauryl ether (3 E.O.) (IOB value: 0.75, OV: 360, IV: 270), bis(ethoxydiglycol) cyclohexane-1,4-dicarboxylate (IOB value: 0.8, OV: 400, IV: 320), methyl ethyl ketone (IOB value: 0.81, OV: 80, IV: 65), benzyl alcohol (IOB value: 0.82, OV: 140, IV: 115), polyoxyethylene polyoxypropylene butyl ether (2 E.O. 2 P.O.) (IOB value: 0.84, OV: 280, IV: 235), phenoxyethanol (IOB value: 0.84, OV: 160, IV: 135), para-hydroxyanisole (IOB value: 0.96, OV: 140, IV: 135), 2-butoxyethanol (IOB value: 1, OV: 120, IV: 120), acetone (IOB value: 1.08, OV: 60, IV: 65), diethoxyethyl succinate (IOB value: 1.13, OV: 240, IV: 270), butanol (IOB value: 1.25, OV: 80, IV: 100), 2-ethoxyethanol (IOB value: 1.5, OV: 80, IV: 120), diethylene glycol monoethyl ether (IOB value: 1.63, OV: 120, IV: 195).

[0030] The hair composition of this embodiment may be, for example, a composition in which one or more selected from polyoxyethylene lauryl ether (2 E.O.), bisethoxydiglycol cyclohexane-1,4-dicarboxylate, benzyl alcohol, phenoxyethanol, diethoxyethyl succinate, and diethylene glycol monoethyl ether are blended as specific organic compounds.

[0031] From the viewpoint that the relaxation of the hair kink or wave can be more sustained, the hair composition of this embodiment is preferably a composition in which one or more selected from polyoxyethylene lauryl ether (2 E.O.), bisethoxydiglycol cyclohexane-1,4-dicarboxylate, benzyl alcohol, phenoxyethanol, and diethoxyethyl succinate are blended as specific organic compounds, and more preferably a composition in which bisethoxydiglycol cyclohexane-1,4-dicarboxylate is blended.

[0032] The hair composition of this embodiment contains, as specific organic compounds, one or more specific organic compounds satisfying the following condition 1-1 and one or more specific organic compounds satisfying the following condition 1-2, or one or more specific organic compounds satisfying the following condition 1-3 and one or more specific organic compounds satisfying the following condition 1-4, or it is more preferable from the viewpoint that the hair kink or wave can be more relaxed that two or more specific organic compounds satisfying the following condition 1-5 are blended. Condition 1-1: The IOB value is 0.50 or more and less than 0.70 Condition 1-2: The IOB value is 0.70 or more and 1.70 or less Condition 1-3: The IOB value is 0.50 or more and less than 0.90 Condition 1-4: The IOB value is 0.90 or more and 1.70 or less Condition 1-5: The IOB value is 0.70 or more and 0.90 or less

[0033] (Combination of a specific organic compound satisfying Condition 1-1 and a specific organic compound satisfying Condition 1-2) The hair composition of this embodiment is preferably one in which, as a specific organic compound, one or more specific organic compounds satisfying the following Condition 1-1 and one or more specific organic compounds satisfying the following Condition 1-2 are blended, from the viewpoint of being able to more effectively alleviate the odor or wave of hair. Condition 1-1: The IOB value is 0.50 or more and less than 0.70 Condition 1-2: The IOB value is 0.70 or more and 1.70 or less

[0034] The hair composition of this embodiment, for example, as a specific organic compound satisfying Condition 1-1, one or more selected from diethoxyethyl adipate, polyoxyethylene tridecyl ether (2 E.O.), menthol, methyl isobutyl ketone, polyoxyethylene lauryl ether (2 E.O.), and as a specific organic compound satisfying the following Condition 1-2, one or more selected from polyoxyethylene tridecyl ether (3 E.O.), phenylethyl alcohol, PEG-2 laurate, benzyloxyethanol, polyoxyethylene lauryl ether (3 E.O.), bisethoxydiglycol cyclohexane-1,4-dicarboxylate, methyl ethyl ketone, benzyl alcohol, polyoxyethylene polyoxypropylene butyl ether (2 E.O. 2 P.O.), phenoxyethanol, para-hydroxyanisole, 2-butoxyethanol, acetone, diethoxyethyl succinate, butanol, 2-ethoxyethanol, diethylene glycol monoethyl ether are blended.

[0035] (Combination of a specific organic compound satisfying Condition 1-3 and a specific organic compound satisfying Condition 1-4) The hair composition of this embodiment is preferably one in which, as a specific organic compound, one or more specific organic compounds satisfying Condition 1-3 and one or more specific organic compounds satisfying Condition 1-4 are blended, from the viewpoint of being able to more effectively alleviate the odor or wave of hair. Condition 1-3: The IOB value is 0.50 or more and less than 0.90 Condition 1-4: The IOB value is 0.90 or more and 1.70 or less

[0036] The hair composition of the present embodiment contains, for example, as a specific organic compound satisfying Condition 1-3, one or more selected from diethoxyethyl adipate, polyoxyethylene tridecyl ether (2 E.O.), menthol, methyl isobutyl ketone, polyoxyethylene lauryl ether (2 E.O.), polyoxyethylene tridecyl ether (3 E.O.), phenylethyl alcohol, PEG-2 laurate, benzyloxyethanol, polyoxyethylene lauryl ether (3 E.O.), bisethoxydiglycol cyclohexane-1,4-dicarboxylate, methyl ethyl ketone, benzyl alcohol, polyoxyethylene polyoxypropylene butyl ether (2 E.O. 2 P.O.), phenoxyethanol, and As a specific organic compound satisfying Condition 1-4, one or more selected from parahydroxyanisole, 2-butoxyethanol, acetone, diethoxyethyl succinate, butanol, 2-ethoxyethanol, diethylene glycol monoethyl ether are blended.

[0037] (Specific organic compound satisfying Condition 1-5) The hair composition of the present embodiment is preferably one in which two or more specific organic compounds satisfying the following Condition 1-5 are blended as the specific organic compound, from the viewpoint of being able to further relax the hair kink or wave. Condition 1-5: The IOB value is 0.70 or more and 0.90 or less

[0038] The hair composition of the present embodiment contains, for example, two or more selected from polyoxyethylene tridecyl ether (3 E.O.), phenylethyl alcohol, PEG-2 laurate, benzyloxyethanol, polyoxyethylene lauryl ether (3 E.O.), bisethoxydiglycol cyclohexane-1,4-dicarboxylate, methyl ethyl ketone, benzyl alcohol, polyoxyethylene polyoxypropylene butyl ether (2 E.O. 2 P.O.), and phenoxyethanol as specific organic compounds that satisfy conditions 1-5.

[0039] The specific organic compound incorporated into the hair composition of the present embodiment may be a specific organic compound that satisfies the following condition 1A. Condition 1A: The IOB value is 0.60 or more and 1.70 or less.

[0040] Further, the specific organic compound incorporated into the hair composition of the present embodiment may use the above-described conditions 1-1 and 1-3 as the following conditions 1A-1 and 1A-3. Condition 1A-1: The IOB value is 0.60 or more and less than 0.70. Condition 1A-3: The IOB value is 0.60 or more and less than 0.90.

[0041] The hair composition of the present embodiment may contain, as a specific organic compound, one or more specific organic compounds that satisfy either or both of the following condition 3 and the following condition 4. Condition 3: The value of the organicity value (OV) is 400 or less. Condition 4: The value of the inorganicity value (IV) is 400 or less.

[0042] From the viewpoint of enhancing the permeability to hair, the specific organic compound incorporated into the hair composition of the present embodiment preferably has a molecular weight of 500 or less.

[0043] The blending amount of the specific organic compound in the hair composition of the present embodiment is, for example, 0.1% by mass or more. From the viewpoint of further alleviating the hair kink or wave, 0.3% by mass or more is preferable, 0.5% by mass or more is more preferable, 1% by mass or more is still more preferable, 2% by mass or more is even more preferable, and 5% by mass or more is particularly preferable.

[0044] The blending amount of the specific organic compound in the hair composition of the present embodiment is, for example, 15% by mass or less. From the viewpoint of reducing the risk of a sticky feel on the hair, 10% by mass or less is preferable.

[0045] The range of the blending amount of the specific organic compound in the hair composition of the present embodiment is, for example, 0.1% by mass or more and 15% by mass or less. From the viewpoints described above regarding the blending amount of the specific organic compound, 0.3% by mass or more and 10% by mass or less is preferable, 0.5% by mass or more and 10% by mass or less is more preferable, 1% by mass or more and 10% by mass or less is still more preferable, 2% by mass or more and 10% by mass or less is even more preferable, and 5% by mass or more and 10% by mass or less is particularly preferable.

[0046] (Optional component) The hair composition of the present embodiment may contain components other than the specific organic compound described above (referred to as "optional components"). The types and blending amounts of the optional components can be appropriately set according to the dosage form of the hair composition of the present embodiment. Examples of the optional components include anionic surfactants, cationic surfactants, amphoteric surfactants, nonionic surfactants, higher alcohols, lower alcohols, polyhydric alcohols, saccharides, oils and fats, ether oils, ester oils, fatty acids, hydrocarbons, waxes, silicones, synthetic polymer compounds, semi-synthetic polymer compounds, natural polymer compounds, proteins, animal and plant extracts, microbe-derived substances, inorganic compounds, fragrances, preservatives, ultraviolet absorbers, acids, alkalis, pigments, water, etc. (however, excluding those corresponding to the specific organic compound).

[0047] (Water and / or ethanol) The hair composition of the present embodiment preferably contains water and / or ethanol among optional components in order to facilitate the blending of a specific organic compound. The blending amount of water and / or ethanol in the hair composition of the present embodiment may be set as appropriate, for example, 50% by mass or more and 99.5% by mass or less. Note that "and / or" means either one or both.

[0048] (Liquid oil other than specific organic compound) The hair composition of the present embodiment may contain a liquid oil other than a specific organic compound among optional components. Note that the liquid oil refers to an oil having fluidity at 25°C.

[0049] The blending amount of the liquid oil other than the specific organic compound in the hair composition of the present embodiment may be set as appropriate. When the hair composition of the present embodiment is used as a hair oil, the blending amount of the liquid oil other than the specific organic compound is, for example, 50% by mass or more and 99.5% by mass or less.

[0050] Examples of the liquid oil other than the specific organic compound include liquid fats and oils, liquid hydrocarbons, liquid silicone oils, liquid higher alcohols, liquid ether oils, liquid higher fatty acids, and liquid ester oils (excluding those corresponding to the specific organic compound).

[0051] (Dosage form) The dosage form of the hair composition of the present embodiment may be appropriately selected, and examples thereof include liquid, cream, wax, gel, foam (bubbly), and mist (foggy).

[0052] (Use) As described above, the hair composition of the present embodiment is for relaxing hair kinks or waves. Therefore, the hair composition of the present embodiment may be, for example, for frizzy hair, curly hair, or wavy hair.

[0053] The hair composition of the present embodiment may be used for relaxing the kinks or waves of straightened hair. Straightened hair may develop kinks or waves after the straightening treatment (for example, reversion). By using the hair composition of the present embodiment on straightened hair, the kinks or waves of the hair after the straightening treatment can be relaxed.

[0054] Straightened hair refers to hair that has been treated to make it straight (linear). The hair treatment for making the hair straight is not particularly limited, and examples include the following hair treatments <1> to <4>. <1> Acid-heat treatment: A composition containing an acid (for example, glyoxylic acid) is applied to the hair, and after a certain period of time, the hair is washed, dried, and straightened using a heated hair straightening iron. <2> Straight perm treatment (hair straightening treatment): A composition containing a reducing agent is applied to the hair, the hair is washed, dried, and straightened using a heated hair straightening iron, and then a composition containing an oxidizing agent is applied to the hair, and the hair is washed and dried. <3> Hair relaxer treatment: A composition containing a high concentration of an alkali (for example, sodium hydroxide) is applied to the hair, the hair is washed, dried, and straightened. <4> Hair straightening iron treatment: A hair treatment for styling the hair straight using a heated hair straightening iron.

[0055] (Product form) Examples of the product form of the hair composition of the present embodiment include product forms that can be commonly used as cosmetics or quasi-drugs. In addition, the hair composition of the present embodiment can be in a product form in which the purpose of use for hair with kinks or waves (for example, for frizzy hair, curly hair, wavy hair, etc.) is indicated in explanatory materials such as packages, pamphlets, and instructions.

[0056] The product form of the hair composition of the present embodiment can be, for example, the product form of a hair composition in which the purpose of use (for example, for hair treated with acid·heat treatment, straight perm treatment, hair relaxer treatment, hair straight iron treatment, etc.) for relaxing the curl or wave of straight hair is indicated in explanatory materials such as packages, pamphlets, and instructions.

[0057] The hair composition of the present embodiment can be used, for example, in hair care applications (such as shampoos, hair treatments, styling-in-one hair treatments, one component of a multi-agent hair treatment, etc.), hair styling applications, and the like. Note that the hair treatment may be a hair treatment that is not rinsed off or a hair treatment that is rinsed off.

[0058] The hair composition of the present embodiment may be, for example, a post-treatment agent for acid·heat treatment, a post-treatment agent for straight perm treatment (hair straightening treatment), a post-treatment agent for hair relaxer treatment, or a post-treatment agent for hair straight iron treatment.

[0059] From the viewpoint of being able to more effectively relax the curl or wave of hair, the hair composition of the present embodiment is preferably used as a hair treatment that is not rinsed off after being applied to the hair. Examples of the product form of a hair treatment that is not rinsed off after being applied to the hair include hair cream, hair milk, hair oil, and outburst treatment.

[0060] (Method of use) The method of using the hair composition of the present embodiment can adopt the method of use in known hair compositions according to the dosage form of the hair composition of the present embodiment.

[0061] (Manufacturing method) The hair composition of the present embodiment can be manufactured using known manufacturing methods for hair compositions.

[0062] <Hair treatment method> The hair treatment method of the present embodiment is a hair treatment method using the hair composition of the present embodiment described above.

[0063] The hair treatment method of the present embodiment can be used in the same manner as the method of use in the hair composition of the present embodiment.

[0064] <Supplementary Note> The hair composition of the present embodiment is appended below.

[0065] (Supplementary Note 1) The hair composition of the present embodiment is blended with one or more selected from polyoxyethylene lauryl ether (2 E.O.), bis(ethoxydiethylene glycol) cyclohexane-1,4-dicarboxylate, benzyl alcohol, phenoxyethanol, diethoxyethyl succinate, and diethylene glycol monoethyl ether, and is for relaxing the odor or wave of hair.

[0066] (Supplementary Note 2) The hair composition of the present embodiment is the hair composition described in Supplementary Note 1, wherein the range of the blending amount of one or more selected from polyoxyethylene lauryl ether (2 E.O.), bis(ethoxydiethylene glycol) cyclohexane-1,4-dicarboxylate, benzyl alcohol, phenoxyethanol, diethoxyethyl succinate, and diethylene glycol monoethyl ether is 0.5% by mass or more and 10% by mass or less.

[0067] (Supplementary Note 3) The hair composition of the present embodiment is the hair composition described in Supplementary Note 1 or Supplementary Note 2 for relaxing the odor or wave of straight-treated hair.

Examples

[0068] 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 these examples.

[0069] 〔Examples 1 to 16, Comparative Examples 1 to 7〕 Using the hair compositions of Examples 1 to 16 and Comparative Examples 1 to 7, the relaxing effect on hair kinks or waves was evaluated.

[0070] (Production of the hair compositions of Examples 1 to 16 and Comparative Examples 1 to 7) The hair compositions of Examples 1 to 16 and Comparative Examples 1 to 7 were produced by mixing in a conventional manner using components selected from cyclohexane-1,4-dicarboxylic acid bisethoxydiglycol, benzyl alcohol, phenoxyethanol, diethoxyethyl succinate, diethylene glycol monoethyl ether, polyoxyethylene lauryl ether (9 E.O.), succinic acid bisethoxydiglycol, 1,3-butylene glycol, glycerin, polyoxyethylene lauryl ether (2 E.O.), oleyl alcohol, purified water, and ethanol so as to have the compositions shown in Tables 2 to 10 below. Incidentally, all of the produced hair compositions of Examples 1 to 16 and Comparative Examples 1 to 7 were in a liquid state.

[0071] Table 1 below shows the IOB values, OV values, and IV values of the components used in the hair compositions of Examples 1 to 16 and Comparative Examples 1 to 7. In Table 1, when the above components satisfy Condition 1 (IOB value is 0.50 or more and 1.70 or less), it is indicated by ○, and when not satisfied, it is indicated by ×, and when Condition 2 ((0.32 × organic value (OV)) + 195 - inorganic value (IV) ≥ 0) is satisfied, it is indicated by ○, and when not satisfied, it is indicated by ×, respectively.

[0072]

Table 1

[0073] In the notations in the component columns shown in Tables 2 to 10 below, the numerical values indicate mass %, and "-" indicates that the component is not blended. Incidentally, the number before E.O. in polyoxyethylene lauryl ether indicates the average number of moles of ethylene oxide added. The ○ and × for Condition 1 and Condition 2 described below each component name indicate that when each condition is satisfied, it is ○, and when not satisfied, it is ×.

[0074] (Evaluation method) Multiple hair bundles of Indian black hair with hair waves (manufactured by Biwulax Co., Ltd.: BS-B4-3), 30 cm long and 3 g each, were prepared. The hair compositions of Examples 1 to 16 and Comparative Examples 1 to 7 manufactured above were each placed in a 200 mL beaker, 100 g each. Then, each hair bundle was immersed one by one in the solution in each beaker containing the hair compositions of Examples 1 to 16 and Comparative Examples 1 to 7, and left at room temperature for 30 minutes. Each hair bundle was taken out of the beaker, towel-dried, then combed with a comb to remove tangles in the hair. And while arranging the hair of each hair bundle straight by hand, it was dried with a dryer. Each dried hair bundle was fixed to a board so that the root part was upward and the tip part was downward and perpendicular to the ground, and a photograph of the appearance of the hair bundle was taken. In each hair bundle fixed to the board, the longest width was measured with a ruler. The value measured here was taken as "the longest width (cm) of the hair bundle immediately after drying". Next, while the hair bundle was fixed to the board, it was left for 24 hours under the conditions of a temperature of 25°C and a humidity of 50%. After 24 hours elapsed, the appearance of the hair bundle was photographed, and the longest width was measured with a ruler. The value measured here was taken as "the longest width (cm) of the hair bundle after 24 hours". Note that the smaller the width (cm) immediately after drying and the width (cm) after 24 hours, the better the effect of relaxing the hair curl or wave.

[0075] (Evaluation results: Examples 1 to 5, Comparative Examples 1 to 5) The following Tables 2 and 3 show the evaluation results when using the hair compositions of Examples 1 to 5 and Comparative Examples 1 to 5.

[0076]

Table 2

[0077]

Table 3

[0078] From the results shown in Tables 2 and 3, it can be seen that the hair compositions of Examples 1 to 5 containing specific organic compounds that satisfy Conditions 1 and 2 have a smaller maximum width of the hair bundle immediately after drying or after 24 hours compared to the hair compositions of Comparative Examples 1 to 5 that do not contain the specific organic compounds, and are excellent in the effect of relaxing the hair curl or wave. Note that Figure 1 shows the appearance photographs of each hair bundle immediately after drying and after 24 hours when the hair compositions of Examples 1 to 5 are treated, and Figure 2 shows the appearance photographs of each hair bundle immediately after drying and after 24 hours when the hair compositions of Comparative Examples 1 to 5 are treated, respectively.

[0079] Also, from the results shown in Table 2, it can be seen that the hair composition of Example 2 has a smaller maximum width of the hair bundle immediately after drying compared to the hair compositions of Examples 1 and 3 to 4, and is more excellent in the effect of relaxing the hair curl or wave immediately after drying. Among the hair compositions of Examples 1 to 5, in ascending order of the smaller maximum width of the hair bundle after 24 hours, they are Example 2, Example 1, and Examples 3 to 4, and Example 5, and it can be seen that they are more excellent in the effect of relaxing the hair curl or wave after 24 hours in this order.

[0080] From the results shown in Table 3, polyoxyethylene lauryl ether (9 E.O.) or bis(ethoxydiglycol) succinate of Comparative Examples 1 and 2 do not satisfy Condition 2, 1,3-butylene glycol of Comparative Example 3 does not satisfy Condition 1, and glycerin of Comparative Example 4 does not satisfy both Condition 1 and Condition 2 and does not correspond to the specific organic compound. And it can be seen that the hair compositions of Comparative Examples 1 to 4 have almost the same maximum width of the hair bundle immediately after drying or after 24 hours compared to the hair composition of Comparative Example 5 using purified water, and almost no effect of relaxing the hair curl or wave occurs.

[0081] Figure 3 shows a graph of the organic value (OV) and the inorganic value (IV) obtained by plotting the components used in the hair compositions of Examples 1 to 5 and Comparative Examples 1 to 5. In Figure 3, a dotted line drawn from the equation "IV = 0.32×OV + 195" is shown. The region below this dotted line satisfies the condition (0.32×organic value (OV)) + 195 - inorganic value (IV) ≥ 0 of Condition 2. In Figure 3, those corresponding to specific organic compounds are indicated by *1 to *6, and those not corresponding to specific organic compounds are indicated by **1 to **7. It can be seen from Figure 3 that specific organic compounds are plotted in specific regions that satisfy Condition 1 and Condition 2.

[0082] (Evaluation results: Example 6, Comparative Examples 6 to 7) The following Table 4 shows the evaluation results when the hair compositions of Example 6 and Comparative Examples 6 to 7 were used.

[0083]

Table 4

[0084] From the results shown in Table 4, it can be seen that the hair composition of Example 6 containing a specific organic compound that satisfies Condition 1 and Condition 2 has a smaller maximum width of the hair bundle immediately after drying or after 24 hours compared to the hair compositions of Comparative Examples 6 and 7 that do not contain a specific organic compound, and is excellent in the effect of relaxing the hair curl or undulation. Also, it can be seen that the hair composition of Comparative Example 6 using oleyl alcohol and ethanol has an equivalent maximum width of the hair bundle immediately after drying or after 24 hours compared to the hair composition of Comparative Example 7 using ethanol, and hardly exhibits an effect of relaxing the hair curl or undulation. Figure 4 shows external appearance photographs of each hair bundle immediately after drying and after 24 hours when the hair compositions of Example 6 and Comparative Examples 6 to 7 were each treated.

[0085] (Evaluation results: Examples 7 and 8, Comparative Example 5) The following Table 5 shows the evaluation results when the hair compositions of Examples 7 and 8 and Comparative Example 5 were used.

[0086]

Table 5

[0087] From the results shown in Table 5, it can be seen that the hair compositions of Examples 7 and 8, in which specific organic compounds satisfying Conditions 1 and 2 are each blended in an amount of 0.5% by mass, have a smaller maximum lateral width of the hair bundle immediately after drying or after 24 hours compared to the hair composition of Comparative Example 5 in which no specific organic compound is blended, and are excellent in the effect of relaxing the kinks or undulations of the hair. Note that FIG. 5 shows external appearance photographs of each hair bundle immediately after drying and after 24 hours when the hair compositions of Examples 7 and 8 and Comparative Example 5 are each treated.

[0088] (Evaluation Results: Examples 9 to 12, Comparative Example 7) The following Table 6 shows the evaluation results when the hair compositions of Examples 9 to 12 and Comparative Example 7 are used.

[0089]

Table 6

[0090] From the results shown in Table 6, it can be seen that the hair compositions of Examples 9 to 12, in which specific organic compounds satisfying Conditions 1 and 2 are each blended in an amount of 5% by mass or 10% by mass, have a smaller maximum lateral width of the hair bundle immediately after drying or after 24 hours compared to the hair composition of Comparative Example 7 in which no specific organic compound is blended, and are excellent in the effect of relaxing the kinks or undulations of the hair. Also, the hair compositions of Examples 10 and 12, in which 10% by mass of the specific organic compound satisfying Conditions 1 and 2 is blended, have a smaller maximum lateral width of the hair bundle immediately after drying or after 24 hours compared to the hair compositions of Examples 9 and 11, in which 5% by mass of the specific organic compound is blended, and are more excellent in the effect of relaxing the kinks or undulations of the hair. Note that the hair treated with the hair compositions of Examples 10 and 12 (blended with 10% by mass of the specific organic compound) had a slightly sticky touch compared to the hair compositions of Examples 9 and 11 (blended with 5% by mass of the specific organic compound). Note that FIG. 6 shows external appearance photographs of each hair bundle immediately after drying and after 24 hours when the hair compositions of Examples 9 to 12 and Comparative Example 7 are each treated.

[0091] (Evaluation results: Example 1, 3, 13, Comparative Example 5, 7) The following Table 7 shows the evaluation results when the hair compositions of Example 1, 3, 13, Comparative Example 5, and 7 were used.

[0092]

Table 7

[0093] From the results shown in Table 7, as specific organic compounds, the hair composition of Example 13 in which cyclohexane-1,4-dicarboxylic acid bisethoxydiglycol (IOB value: 0.80) and phenoxyethanol (IOB value: 0.82) were used in combination in a total amount of 1% by mass was compared with the hair compositions of Example 2 and 3 in which either phenoxyethanol or cyclohexane-1,4-dicarboxylic acid bisethoxydiglycol was blended at 1% by mass as a specific organic compound. It can be seen that the longest lateral width of the hair bundle immediately after drying or after 24 hours was smaller, and the relaxing effect on the hair odor or wave was more excellent. In addition, Fig. 7 shows the appearance photographs of each hair bundle immediately after drying and after 24 hours when the hair compositions of Example 1, 3, 13, Comparative Example 5, and 7 were each treated.

[0094] (Evaluation results: Example 1, 6, 14, Comparative Example 7) The following Table 8 shows the evaluation results when the hair compositions of Example 1, 6, 14, and Comparative Example 7 were used.

[0095]

Table 8

[0096] From the results shown in Table 8, as specific organic compounds, the hair composition of Example 14 containing polyoxyethylene lauryl ether (2 E.O.) (IOB value: 0.61) and bis(ethoxydiglycol) cyclohexane-1,4-dicarboxylate (IOB value: 0.80) in a combined amount of 1% by mass was found to have a smaller maximum lateral width of the hair bundle immediately after drying or after 24 hours and a more excellent effect of relaxing the hair curl or wave compared to the hair compositions of Examples 6 and 3 in which either polyoxyethylene lauryl ether (2 E.O.) or bis(ethoxydiglycol) cyclohexane-1,4-dicarboxylate was incorporated at 1% by mass as a specific organic compound. Note that Fig. 8 shows external appearance photographs of each hair bundle immediately after drying and after 24 hours when the hair compositions of Examples 1, 6, 14, and Comparative Example 7 were each treated.

[0097] (Evaluation results: Examples 3, 4, 15, Comparative Example 5) The following Table 9 shows the evaluation results when the hair compositions of Examples 3, 4, 15, and Comparative Example 5 were used.

[0098] [Table 9]

[0099] From the results shown in Table 9, as specific organic compounds, the hair composition of Example 15 containing phenoxyethanol (IOB value: 0.82) and diethoxyethyl succinate (IOB value: 1.13) in a combined amount of 1% by mass was found to have a smaller maximum lateral width of the hair bundle immediately after drying or after 24 hours and a more excellent effect of relaxing the hair curl or wave compared to the hair compositions of Examples 3 and 4 in which either phenoxyethanol or diethoxyethyl succinate was incorporated at 1% by mass as a specific organic compound. Note that Fig. 9 shows external appearance photographs of each hair bundle immediately after drying and after 24 hours when the hair compositions of Examples 3, 4, 15, and Comparative Example 5 were each treated.

[0100] (Evaluation results) The following Table 10 shows the evaluation results when the hair compositions of Examples 4, 6, 16, and Comparative Examples 5 and 7 were used.

[0101]

Table 10

[0102] From the results shown in Table 10, as specific organic compounds, the hair composition of Example 16 formulated with a combined total of 1% by mass of polyoxyethylene lauryl ether (2 E.O.) (IOB value: 0.61) and diethoxyethyl succinate (IOB value: 1.13) has a significantly smaller maximum lateral width of the hair bundle immediately after drying or after 24 hours compared to the hair compositions of Examples 6 and 4 in which either polyoxyethylene lauryl ether (2 E.O.) or diethoxyethyl succinate is formulated in mass percentage as a specific organic compound, indicating that the hair composition of Example 16 has a more excellent effect in alleviating hair kinks or undulations. Note that Figure 10 shows the appearance photographs of each hair bundle immediately after drying and after 24 hours when the hair compositions of Examples 4, 6, 16 and Comparative Examples 5 and 7 are treated respectively.

[0103] Here, from the results shown in Tables 7 - 10, it can be seen that by using the following combinations (1) - (3) as specific organic compounds satisfying Conditions 1 and 2, the synergistic effect results in a more excellent effect in alleviating hair kinks or undulations.

[0104] (1) A combination of one or more specific organic compounds satisfying the condition that the IOB value is 0.50 or more and less than 0.70 (Condition 1 - 1) among specific organic compounds and one or more specific organic compounds satisfying the condition that the IOB value is 0.70 or more and 1.70 or less (Condition 1 - 2). (2) A combination of one or more specific organic compounds satisfying the condition that the IOB value is 0.50 or more and less than 0.90 (Condition 1 - 3) among specific organic compounds and one or more specific organic compounds satisfying the condition that the IOB value is 0.90 or more and 1.70 or less (Condition 1 - 4). (3) A combination of two or more specific organic compounds satisfying the condition that the IOB value is 0.70 or more and 0.90 or less (Condition 1 - 5).

[0105] 〔Examples 17 - 18, Comparative Example 8〕 Using the hair compositions of Examples 17 to 18 and Comparative Example 8, the relaxing effect on the kinks or waves of the hair in the straightened hair was evaluated.

[0106] (Production of the hair compositions of Examples 17 to 18 and Comparative Example 8) The hair compositions of Examples 17 to 18 and Comparative Example 8 were produced by mixing in a conventional manner using components selected from bis(ethoxydiglycol) cyclohexane-1,4-dicarboxylate, diethylene glycol monoethyl ether, benzalkonium chloride, and purified water so as to have the compositions shown in Table 11 below. All of the produced hair compositions of Examples 17 to 18 and Comparative Example 8 were in a liquid state. Note that benzalkonium chloride has an IOB value of 0.92, an OV value of 460, and an IV value of 425, and satisfies Condition 1 (IOB value is 0.50 or more and 1.70 or less), but does not satisfy Condition 2 ((0.32 × organic value (OV)) + 195 - inorganic value (IV) ≥ 0) (Condition 1: ○, Condition 2: ×).

[0107] (Hair treatment) A plurality of 30-cm-long and 3-g hair bundles of Indian black hair with waves (manufactured by Biolax Co., Ltd.: BS-B4-3) were prepared. Note that these hair bundles were from a different lot from those used in the evaluation using the hair compositions of Examples 1 to 16 and Comparative Examples 1 to 7. Next, the following bleaching treatment was performed on the hair bundles.

[0108] (Bleaching treatment) Prepare a bleaching composition by mixing Oludeve Addictive Hybrid (manufactured by Milbon) and Oludeve Addictive Oxidan 6.0 (manufactured by Milbon) containing hydrogen peroxide in a mass ratio of 1:3. Apply 15 g of the bleaching composition to the hair bundle and let it stand at room temperature for 30 minutes. After 30 minutes, rinse the hair bundle with running water, towel-dry the hair bundle, then comb it with a comb to remove tangles. Subsequently, perform the bleaching treatment on the hair bundle twice in the same manner as above (total number of bleaching treatments: 3 times). Then, while straightening the hair of each hair bundle by hand, dry it with a dryer to obtain bleached hair bundles. Subsequently, perform the following straightening treatment on the bleached hair bundles.

[0109] (Straightening treatment) Apply 6 mL of a 10% by mass glyoxylic acid aqueous solution to the bleached hair bundles and let it stand at room temperature for 15 minutes. After 15 minutes, rinse the hair bundles with running water and dry the hair with a dryer. Then, set the temperature of a pair of heating elements in a hair iron (CHI's "Lava 1 Inch Volcanic Ceramic Travel Hairstyling Iron") to 230 °C, sandwich the hair bundle between the heating elements, and then slide the iron while stretching the hair bundle 10 times to heat-treat the hair bundle. After that, rinse the hair bundle with running water, towel-dry it, then comb it with a comb to remove tangles. Then, while straightening the hair of each hair bundle by hand, dry it with a dryer to obtain straightened hair bundles.

[0110] (Treatment of hair composition) To each straight-processed hair bundle, 6 mL of the hair compositions of Examples 17 to 18 and Comparative Example 8 manufactured above was applied and worked into the entire hair. Subsequently, the hair bundles were rinsed with running water, towel-dried, then combed with a comb to remove tangles. And while arranging the hair of each hair bundle straight by hand, it was dried with a dryer. Each dried hair bundle was fixed to a board so that the root part was upward and the tip part was downward and perpendicular to the ground, and a photograph of the appearance of the hair bundle was taken. Then, for each hair bundle fixed to the board, in the same manner as the evaluation using the hair compositions of Examples 1 to 16 and Comparative Examples 1 to 7, the "longest width (cm) of the hair bundle immediately after drying" was measured, a photograph of the appearance of the hair bundle was taken after 24 hours had elapsed, and the "longest width (cm) of the hair bundle after 24 hours" was measured.

[0111] For reference in the evaluation of the hair compositions of Examples 17 to 18 and Comparative Example 8, hair bundles that had only been bleached and had not been subjected to straightening treatment or treatment with the hair composition (Reference Example 1), and hair bundles that had been bleached and straightened and had not been treated with the hair composition (Reference Example 2) were also fixed to a board in the same manner as above, and photographs of the appearance of the hair bundles were taken. Then, for each hair bundle fixed to the board, in the same manner as the evaluation using the hair compositions of Examples 1 to 16 and Comparative Examples 1 to 7, the "longest width (cm) of the hair bundle immediately after drying" was measured, a photograph of the appearance of the hair bundle was taken after 24 hours had elapsed, and the "longest width (cm) of the hair bundle after 24 hours" was measured. Note that the "longest width (cm) of the hair bundle immediately after drying" in Reference Example 1 is the longest width (cm) of the hair bundle immediately after drying after the bleaching treatment, and the "longest width (cm) of the hair bundle immediately after drying" in Reference Example 2 is the longest width (cm) of the hair bundle immediately after drying after the straightening treatment.

[0112] (Evaluation results: Examples 17 to 18, Comparative Example 8) Table 11 below shows the evaluation results when using the hair compositions of Examples 17 to 18 and Comparative Example 8, as well as the results of Reference Example 1 and Reference Example 2. In the notations in the component columns shown in Table 11 below, the numerical values indicate mass %, and "-" indicates that the component is not blended. The ○ and × for Conditions 1 and 2 described below each component name indicate that ○ indicates that each condition is satisfied, and × indicates that it is not satisfied.

[0113]

Table 11

[0114] From the results shown in Table 11, in the case of straight-treated hair, the hair compositions of Examples 17 to 18 containing specific organic compounds that satisfy Conditions 1 and 2 have a smaller maximum lateral width of the hair bundle immediately after drying or after 24 hours compared to the hair composition of Comparative Example 8 that does not contain the specific organic compound, and it can be seen that they are excellent in the relaxing effect of the hair curl or wave. Also, the hair composition of Comparative Example 8 in which the specific organic compound was not blended had a larger maximum lateral width of the hair bundle immediately after drying or after 24 hours compared to Reference Example 1 in which the hair composition was not treated, and was inferior in the relaxing effect of the hair curl or wave. Note that FIG. 11 shows the appearance photographs of each hair bundle immediately after drying and after 24 hours when the hair compositions of Examples 17 to 18 and Comparative Example 8 were each treated, as well as the appearance photographs of each hair bundle of Reference Examples 1 to 2.

[0115] Here, from the results shown in Table 11, it can be seen that according to the hair composition containing a specific organic compound that satisfies Conditions 1 and 2, in straight-treated hair, it is excellent in the relaxing effect of the hair curl or wave after the straight treatment.

Claims

1. A hair composition for use in reducing hair curls or waves, which contains one or more organic compounds satisfying the following conditions 1 and 2: Condition 1: IOB value is 0.50 or more and 1.70 or less Condition 2: (0.32 × organic value (OV)) + 195 - inorganic value (IV) ≧ 0

2. As organic compounds satisfying the above conditions 1 and 2, The composition is a mixture of one or more organic compounds that satisfy the following condition 1-1 and one or more organic compounds that satisfy the following condition 1-2: A mixture of one or more organic compounds satisfying the following conditions 1-3 and one or more organic compounds satisfying the following conditions 1-4, or The hair composition according to claim 1, which contains two or more organic compounds satisfying the following conditions 1 to 5: Condition 1-1: IOB value is 0.50 or more and less than 0.70 Condition 1-2: IOB value is 0.70 or more and 1.70 or less Condition 1-3: IOB value is 0.50 or more and less than 0.90 Condition 1-4: IOB value is 0.90 or more and 1.70 or less Condition 1-5: IOB value is 0.70 or more and 0.90 or less

3. 3. The hair composition according to claim 1, wherein the organic compound satisfying the conditions 1 and 2 is one or more selected from the group consisting of polyoxyethylene lauryl ether (2E.O.), bisethoxydiglycol cyclohexane-1,4-dicarboxylate, benzyl alcohol, phenoxyethanol, diethoxyethyl succinate, and diethylene glycol monoethyl ether.

4. The hair composition according to claim 1 or 2, comprising an organic compound satisfying the conditions 1 and 2 in an amount of 0.5% by mass or more.

5. The hair composition is used for reducing curl or wave of hair, and contains one or more selected from polyoxyethylene lauryl ether (2E.O.), bisethoxydiglycol cyclohexane-1,4-dicarboxylate, benzyl alcohol, phenoxyethanol, diethoxyethyl succinate, and diethylene glycol monoethyl ether.

6. The hair composition according to claim 1 or 2, which is used to reduce curls or waves in hair that has been straightened.

7. A hair treatment method using the hair composition according to claim 1 or 2.

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