Hair cleansing composition

Abstract

The present invention provides a hair cleansing composition having an effect of imparting a fluffy and tough feeling to hair, the hair cleansing composition containing sodium lauroyl methyl-beta-alanine taurate, lauramide propyl betaine, and cocamidomethyl MEA.

Description

Technical Field

[0001] The present invention relates to a hair cleansing composition. Background Art

[0002] The fundamental function of hair cleansing compositions is cleansing power, but excessive cleansing power can cause itching, among other issues. Furthermore, a lack of volume and firmness is a known hair problem, particularly with aging, thinning hair, and damaged hair. Furthermore, there is a demand for functions beyond cleansing, such as enhanced volume and firmness, after drying.

[0003] Amino acid-based surfactants are low-irritation surfactants that do not damage skin and hair and have a cleansing effect, and are used in body and hair cleansers (Patent Documents 1 and 2).

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Laid-Open No. 2006-306908

[0007] Patent Document 2: International Publication No. WO2012029514 Summary of the Invention

[0008] Problems to be solved by the invention

[0009] An object of the present invention is to provide a hair cleansing composition that is low in irritation, mild to the scalp, and highly effective in imparting a bouncy and firm feel to hair after drying.

[0010] Solutions for solving problems

[0011] The present inventors conducted intensive research to address the above-mentioned issues and discovered that, among known low-irritation amino acid surfactants, sodium lauroylmethyl-β-alanine taurate, combined with lauramidopropyl betaine and a nonionic surfactant, can provide a hair cleansing composition that effectively imparts a firm, bouncy feel to dried hair. Furthermore, they discovered that, by incorporating cocamidomethyl MEA as a nonionic surfactant, a hair cleansing composition can be obtained that effectively imparts a firm, bouncy feel to dried hair, exhibits a moderate viscosity, and exhibits rapid foaming properties, resulting in a more pleasant feel during rinsing.

[0012] Specifically, the present invention includes the following aspects.

[0013] [Item 1]

[0014] A hair cleaning composition comprising:

[0015] Sodium lauroyl methyl-β-alanine taurate,

[0016] Lauramidopropyl betaine, and

[0017] Cocamidomethyl MEA.

[0018] [Item 2]

[0019] The composition according to item 1, further comprising a cationic polymer.

[0020] [Item 3]

[0021] The composition according to item 1 or 2, wherein the content of sodium lauroylmethyl-β-alanine taurate is 6 to 9% by weight relative to the total weight of the composition.

[0022] [Item 4]

[0023] The composition according to any one of items 1 to 3, wherein the content of lauramidopropyl betaine is 4 to 7% by weight relative to the total weight of the composition.

[0024] [Item 5]

[0025] The composition according to any one of items 1 to 4, wherein the content of cocamide methyl MEA is 1 to 3 wt % based on the total weight of the composition.

[0026] [Item 6]

[0027] The composition according to any one of items 1 to 5, further comprising polyoxyethylene sorbitan fatty acid ester, wherein the content of the polyoxyethylene sorbitan fatty acid ester is 0.05 to 1% by weight relative to the total weight of the composition.

[0028] [Item 7]

[0029] The composition according to any one of items 1 to 6, further comprising an α-olefin sulfonate, wherein the content of the α-olefin sulfonate is 1 to 5% by weight relative to the total weight of the composition.

[0030] [Item 8]

[0031] The composition according to any one of items 1 to 7, further comprising sodium N-toluenesulfonyl valine, wherein the content of sodium N-toluenesulfonyl valine is 0.001 to 2% by weight relative to the total weight of the composition.

[0032] [Item 9]

[0033] The composition according to any one of items 1 to 8, wherein the viscosity thereof measured at 25° C. using a Brookfield rotational viscometer is 10 to 4000 mPa·s.

[0034] [Item 10]

[0035] The composition according to any one of items 1 to 9, further comprising water.

[0036] [Item 11]

[0037] The composition according to any one of items 1 to 10, further comprising citric acid and / or a salt thereof as a pH adjuster.

[0038] [Item 12]

[0039] The composition according to any one of items 1 to 11, wherein the pH is 5.5 to 6.2.

[0040] [Item 13]

[0041] The composition according to any one of items 1 to 12, which is a transparent liquid.

[0042] [Item 14]

[0043] The composition according to any one of items 1 to 13, comprising:

[0044] Sodium lauroyl methyl-β-alanine taurate,

[0045] Lauramidopropyl Betaine,

[0046] Cocamidomethyl MEA,

[0047] Polyquaternium-7,

[0048] Citric acid and / or its salt as a pH adjuster, and

[0049] water.

[0050] [Item 15]

[0051] The composition according to any one of items 1 to 14, comprising:

[0052] Sodium lauroyl methyl-β-alanine taurate,

[0053] Lauramidopropyl Betaine,

[0054] Cocamidomethyl MEA,

[0055] Polyquaternium-7,

[0056] Polyquaternium-22,

[0057] Citric acid and / or its salt as a pH adjuster, and

[0058] water,

[0059] The pH of the composition is 5.5-6.2.

[0060] [Item 16]

[0061] The composition according to any one of items 1 to 15, comprising:

[0062] 6-9w / w% sodium lauroyl methyl-β-alanine taurate,

[0063] 4-7w / w% lauramidopropyl betaine,

[0064] 1~3w / w% cocamide methyl MEA,

[0065] 0.05~0.3w / w% polyquaternium-7,

[0066] 0.5~1.5w / w% polyquaternium-22,

[0067] Citric acid and / or its salt as a pH adjuster, and

[0068] water,

[0069] The pH of the composition is 5.5-6.2.

[0070] [Item 17]

[0071] Use of the composition according to any one of items 1 to 16 for imparting a bouncy and firm feel to hair.

[0072] [Item 18]

[0073] A method for imparting a bouncy and tough feel to hair, comprising: washing the hair with the composition according to any one of items 1 to 16. DETAILED DESCRIPTION

[0074] Hereinafter, embodiments of the present invention will be described in detail.

[0075] The present disclosure provides a cleaning composition (hereinafter sometimes referred to as "the composition of the present invention") comprising:

[0076] Sodium lauroyl methyl-β-alanine taurate,

[0077] Lauramidopropyl betaine, and

[0078] Cocamidomethyl MEA.

[0079] In one embodiment, the composition of the present invention can be used as a shampoo for hair.

[0080] Sodium Taurine Lauroyl Methyl Beta-Alaninate (INCI: Sodium Taurine Lauroyl Methyl Beta-Alaninate) is an anionic amino acid surfactant widely used as a cosmetic ingredient. Using an amino acid surfactant as an anionic surfactant allows for the creation of a composition that is mild to the scalp and has low irritation. The content of sodium laurine methyl beta-alaninate is, for example, 3 to 15% by weight, preferably 4 to 10% by weight, more preferably 6 to 9% by weight, and even more preferably 6.5 to 8% by weight, relative to the total weight of the cleansing composition.

[0081] The composition of the present invention may contain an anionic amino acid surfactant other than sodium lauroylmethyl-β-alanine taurate. In one embodiment, the composition of the present invention does not contain an anionic amino acid surfactant other than sodium lauroylmethyl-β-alanine taurate.

[0082] Lauramidopropyl betaine (INCI: Lauramidopropyl Betaine) is an amphoteric surfactant widely used as a cosmetic ingredient. The content of lauramidopropyl betaine is, for example, 2 to 15% by weight, preferably 3 to 9% by weight, more preferably 4 to 7% by weight, and even more preferably 4.5 to 6.5% by weight, relative to the total weight of the cleansing composition. The composition of the present invention may contain amphoteric surfactants other than lauramidopropyl betaine. In one embodiment, the composition of the present invention does not contain amphoteric surfactants other than lauramidopropyl betaine.

[0083] Cocamide methyl MEA (INCI: Cocamide Methyl MEA; also known as cocoyl methyl monoethanolamide) is a nonionic surfactant widely used as a cosmetic ingredient. The content of cocamide methyl MEA is, for example, 0.1 to 5% by weight, preferably 0.5 to 4% by weight, more preferably 1 to 3% by weight, and even more preferably 1.5 to 2.5% by weight, relative to the total weight of the cleansing composition.

[0084] In one embodiment, the composition of the present invention contains a cationic polymer (also referred to as a cationic high molecule in this disclosure). The type of cationic polymer is not particularly limited, and examples thereof include polyquaternium-22 and polyquaternium-7. The cationic polymer may be a single type of cationic polymer, or two or more types may be selected and used as appropriate. By using at least polyquaternium-22, hair can be made dry, light, fluffy, and strong after drying. The content of the cationic polymer is, for example, 0.03 to 3% by weight, preferably 0.5 to 2% by weight, and particularly preferably 0.8 to 1.5% by weight, relative to the total weight of the cleansing composition. When two or more cationic polymers are included, the content of the cationic polymer refers to the total content of these cationic polymers.

[0085] In one embodiment, the composition of the present invention comprises polyquaternium-7 (eg, 0.05-0.3 w / w%) and / or polyquaternium-22 (eg, 0.5-1.5 w / w%).

[0086] Anionic surfactants are usually added to shampoos, but in the composition of the present invention, as anionic surfactants, either sodium lauroylmethyl-β-alanine taurate alone or other anionic surfactants can be added together with sodium lauroylmethyl-β-alanine taurate. For example, from the perspective of further improving the rapid foaming (the speed of foaming), the amount of foam and / or the quality of the foam, the composition of the present invention may also contain α-olefin sulfonates. The content of α-olefin sulfonates is not particularly limited, but since it may cause dryness during rinsing and irritation to the skin, it is preferably 1 to 5% by weight, more preferably 1.5 to 2.5% by weight, relative to the total weight of the cleaning composition. When containing two or more α-olefin sulfonates, the content of α-olefin sulfonates refers to the total content of these α-olefin sulfonates. Examples of α-olefin sulfonates (e.g., sodium salts, potassium salts, etc.) include C14-16 olefin sulfonates, C12-14 olefin sulfonates, and C14-18 olefin sulfonates. Preferred is sodium C14-16 olefin sulfonate.

[0087] In addition, in addition to cocamide methyl MEA, the composition of the present invention may also contain one or more other nonionic surfactants. Examples of preferred other nonionic surfactants include polyoxyethylene (POE) alkyl ethers, POE polyoxypropylene glycol, POE aryl ethers, POE hydrogenated castor oil ethers, POE castor oil ethers, POE lanolin alcohol ethers, POE glycerol fatty acid esters, POE sorbitan fatty acid esters, POE sorbitol fatty acid esters, polyethylene glycol fatty acid esters, glycerol fatty acid esters, polyglycerol fatty acid esters, sorbitan fatty acid esters, ethylene glycol fatty acid esters, propylene glycol fatty acid esters, butylene glycol fatty acid esters, pentaerythritol fatty acid esters, sugar derivatives such as alkylated polysaccharides, alkyl glyceryl ethers, organic acid monoglycerides, fatty acid alkanolamides, POE alkylamines, and amine oxides.

[0088] In one embodiment, the composition of the present invention includes a POE sorbitan fatty acid ester (e.g., PEG-160 sorbitan triisostearate). The addition of a POE sorbitan fatty acid ester can thicken the composition, but the amount added is preferably an amount that does not impair the feel, volume, and toughness of the composition of the present invention. The amount of POE sorbitan fatty acid ester, for example, the content of POE sorbitan fatty acid ester in the composition of the present invention, is 0.05 to 1 weight percent, preferably 0.1 to 0.5 weight percent, relative to the total weight of the cleaning composition. When two or more POE sorbitan fatty acid esters are included, the content of POE sorbitan fatty acid ester refers to the total content of these POE sorbitan fatty acid esters.

[0089] In one embodiment, the composition of the present invention further comprises sodium N-toluenesulfonyl valine. The addition of sodium N-toluenesulfonyl valine can further improve the volume and firmness of dried hair. The content of sodium N-toluenesulfonyl valine, relative to the total weight of the cleansing composition, is, for example, 0.001 to 2% by weight, preferably 0.005 to 0.1% by weight, particularly preferably 0.01 to 0.03% by weight, and even more preferably 0.015 to 0.025% by weight.

[0090] The composition of the present invention preferably has a viscosity of 10 to 4000 mPa·s, from the perspective of achieving easy foaming and excellent rapid foaming properties. Furthermore, from the perspective of having an appropriate viscosity when removing the composition from the container by hand, the viscosity of the composition of the present invention is preferably in the range of 500 to 4000 mPa·s, and more preferably in the range of 1500 to 3000 mPa·s.

[0091] The viscosity can be measured by any method, but is not particularly limited. For example, viscosity can be measured using a Brookfield viscometer at 25° C. using a rotor No. 3 at 12 revolutions per minute.

[0092] The pH of the composition of the present invention is not particularly limited as long as it is within the range generally used for scalp and hair. A desirable pH is 4 to 8, and to stabilize viscosity during production, it is more preferably in the range of 5 to 6.5, even more preferably 5.5 to 6.2, and even more preferably 5.8 to 6.0. The pH adjuster is not particularly limited, and examples thereof include citric acid and / or its salts (e.g., sodium salts, potassium salts, etc.).

[0093] The composition of the present invention may contain an antioxidant such as sodium benzoate and / or a coloration inhibitor, for example, in an amount of 0.01 to 0.5% by weight, to prevent coloration due to oxidation during long-term storage and maintain transparency. Furthermore, the composition, which has high transparency, is easily colorable, and a desired color tone can be achieved by adding a commercially available colorant.

[0094] In one embodiment, the composition of the present invention is a clear liquid.

[0095] In the case of slightly turbid or white turbidity, there is a risk of quality deterioration such as sedimentation over time, but in the case of transparency, the risk is generally low. "Transparent" in this disclosure means transparent without turbidity, and includes not only colorless and transparent but also colored.

[0096] The composition of the present invention may contain a solvent commonly used in cleaning compositions, and preferred solvents include water and dipropylene glycol.

[0097] The content of dipropylene glycol is preferably 0.5 to 5% by weight relative to the total weight of the cleaning composition.

[0098] When water is used in the composition of the present invention, the amount thereof can be appropriately blended depending on other ingredients.

[0099] In one embodiment, the composition of the present invention is a liquid.

[0100] In one embodiment, the composition of the present invention comprises water.

[0101] In one embodiment, the composition of the present invention comprises:

[0102] Sodium lauroyl methyl-β-alanine taurate,

[0103] Lauramidopropyl Betaine,

[0104] Cocamidomethyl MEA,

[0105] Polyquaternium-7,

[0106] Citric acid and / or its salt as a pH adjuster, and

[0107] water.

[0108] In one embodiment, the composition of the present invention comprises:

[0109] Sodium lauroyl methyl-β-alanine taurate,

[0110] Lauramidopropyl Betaine,

[0111] Cocamidomethyl MEA,

[0112] Polyquaternium-7,

[0113] Polyquaternium-22,

[0114] Citric acid and / or its salt as a pH adjuster, and

[0115] water.

[0116] In one embodiment, the composition of the present invention comprises:

[0117] Sodium lauroyl methyl-β-alanine taurate,

[0118] Lauramidopropyl Betaine,

[0119] Cocamidomethyl MEA,

[0120] Polyquaternium-7,

[0121] Polyquaternium-22,

[0122] Citric acid and / or its salt as a pH adjuster, and

[0123] water,

[0124] The pH of the composition is 5.5-6.2.

[0125] In one embodiment, the composition of the present invention comprises:

[0126] 6-9w / w% sodium lauroyl methyl-β-alanine taurate,

[0127] 4-7w / w% lauramidopropyl betaine,

[0128] 1~3w / w% cocamide methyl MEA,

[0129] 0.05~0.3w / w% polyquaternium-7,

[0130] 0.5~1.5w / w% polyquaternium-22,

[0131] Citric acid and / or its salt as a pH adjuster, and

[0132] water,

[0133] The pH of the composition is 5.5-6.2.

[0134] In addition to the above-mentioned ingredients, the composition of the present invention may also contain ingredients typically found in cleansing compositions. Examples of the "typical cleansing composition ingredients" of the present invention include the above-mentioned substances and include surfactants, polymer components, moisturizers, preservatives, antiseptics such as phenoxyethanol, anti-inflammatory agents such as glycyrrhizic acid, pH adjusters such as sodium hydroxide and / or citric acid, metal sequestrants such as EDTA, isotonicity agents, and fragrances. Furthermore, conditioning ingredients may be included to further protect the hair surface.

[0135] The method for producing the composition of the present invention is not particularly limited, and the composition can be produced by a conventional method.

[0136] Example

[0137] The present invention is described below with reference to test examples and formulation examples, but the present invention is not limited to these examples. In addition, unless otherwise specified, the expression represents the weight % (w / w%) relative to the total cleaning composition.

[0138] Test Example 1 Type of anionic amino acid surfactant

[0139] Hair cleansing compositions (Test Examples 1-1 to 10) were prepared according to a conventional method according to the formulations shown in Table 1. The pH of the hair cleansing compositions was adjusted to 5.8 to 6.0 using an aqueous citric acid solution.

[0140] The appearance of the obtained composition was visually observed, and the viscosity was measured using a Brookfield viscometer (BL type (Toki Sangyo)) using a rotor No. 3 at 25°C and 12 rpm according to a conventional method.

[0141] 1 g of black human hair (30 cm long, product model BS-B3A (Beaulax Co., Ltd.)) was washed as follows. A professional panel evaluated the foaming speed (lathering speed), foam volume, foam durability, foam smoothness, dry feeling during rinsing, and the springy and firm feeling after drying according to the following criteria.

[0142] The results are shown in Table 1.

[0143] (1) Wet the hair with tap water and wring it out.

[0144] (2) Apply 1 g of the hair cleansing composition to the hair bundle.

[0145] (3) Rub the hair strands together (10 times back and forth), then comb them with your hands. Repeat this operation 4 times.

[0146] (4) Apply 1g of tap water,

[0147] (5) Repeat steps (3) and (4) 4 more times.

[0148] (6) Comb with your hands and rinse with running water.

[0149] (7) Dry with a towel and then blow dry with a hair dryer.

[0150] <Quick foaming properties (speed of foaming)>

[0151] 5 minutes fast

[0152] 4 minutes slightly faster

[0153] 3 points is a practically acceptable speed

[0154] 2 minutes slower

[0155] 1 minute slow

[0156] Bubble Volume

[0157] More than 5 minutes

[0158] Slightly more than 4 points

[0159] 3 points is a practically acceptable amount

[0160] 2 points slightly less

[0161] 1 point less

[0162] <Bubble Durability>

[0163] 5 minutes lasting

[0164] 4 points slightly longer lasting

[0165] 3 points for practically acceptable durability

[0166] 2 points slightly less persistent

[0167] 1 point not lasting

[0168] <Smoothness of the bubble>

[0169] 5 points smooth

[0170] 4 points slightly smooth

[0171] 3 points for practically acceptable smoothness

[0172] 2 points slightly rough

[0173] 1 point rough

[0174] <Dry feeling when rinsing>

[0175] 5 points: no dryness

[0176] 4 points: Almost no dryness

[0177] 3 points for a practically acceptable dry feeling

[0178] 2 points: slightly dry

[0179] 1 point: dry feeling

[0180] <Fluffy and firm feeling after drying>

[0181] 5 points for a fluffy and strong feel

[0182] 4 points: slightly elastic and tough

[0183] 3 points for a practically acceptable sense of elasticity and toughness

[0184] 2 points: Almost no elasticity and toughness

[0185] 1 point non-elastic and strong feeling

[0186] [Table 1]

[0187]

[0188] <Inspection>

[0189] Compared to sodium lauroylmethylaminopropionate, sodium lauroylmethyl-β-alanine taurate generally provides a better feel during rinsing and a more fluffy and tough feel after drying. In particular, when the content of sodium lauroylmethyl-β-alanine taurate is 6-9 w / w%, the post-drying fluffy and tough feel is not only good, but also the feeling of lathering and / or dryness during rinsing is good.

[0190] Test Example 2 Types of amphoteric surfactants

[0191] Hair cleansing compositions (Test Examples 2-1 to 10) were prepared according to a conventional method according to the formulations shown in Table 2. The pH of the hair cleansing compositions was adjusted to 5.8 to 6.0 using an aqueous citric acid solution.

[0192] The appearance of the obtained composition was visually observed, and the viscosity was measured using a Brookfield viscometer (BL type (Toki Sangyo)) using a rotor No. 3 at 25°C and 12 rpm according to a conventional method.

[0193] The foaming speed (foaming speed), foam volume, foam persistence, foam smoothness, dry feeling during rinsing, and firm and bouncy feeling after drying were evaluated in the same manner as in Test Example 1.

[0194] The results are shown in Table 2.

[0195] [Table 2]

[0196]

[0197] <Inspection>

[0198] When combined with sodium lauroyl methyl-β-alanine taurate, lauroyl methyl-β-alanine taurate provides a generally better feel during rinsing and a more elastic and firm feel after drying than cocamidopropyl betaine. In particular, when lauroyl methyl-β-alanine taurate is present at a content of 4-7 w / w%, the post-drying elasticity is not only enhanced but also provides a more favorable lathering and / or dry feeling during rinsing.

[0199] Test Example 3 Types of nonionic surfactants

[0200] Hair cleansing compositions (Test Examples 3-1 to 13) were prepared according to a conventional method according to the formulations shown in Table 3. The pH of the hair cleansing compositions was adjusted to 5.8 to 6.0 using an aqueous citric acid solution.

[0201] The appearance of the obtained composition was visually observed, and the viscosity was measured using a Brookfield viscometer (BL type (Toki Sangyo)) using a rotor No. 3 at 25°C and 12 rpm according to a conventional method.

[0202] The foaming speed (foaming speed), foam volume, foam persistence, foam smoothness, dry feeling during rinsing, and firm and bouncy feeling after drying were evaluated in the same manner as in Test Example 1.

[0203] The results are shown in Table 3.

[0204] [Table 3]

[0205]

[0206] <Inspection>

[0207] When combined with sodium lauroyl methyl-β-alanine taurate and lauramidopropyl betaine, cocamidomethyl MEA generally provides a better feel during rinsing and a stronger, firmer feel after drying, compared to PEG-160 sorbitan triisostearate. In particular, when the cocamidomethyl MEA content is 1-3 w / w%, the post-drying feel, including foaming and / or astringent properties, is improved.

[0208] When the content of PEG-160 sorbitan triisostearate is 1.5 w / w% or more, the viscosity increases excessively and the rapid foaming property decreases, indicating that the use of PEG-160 sorbitan triisostearate increases the viscosity of the composition.

[0209] <Formulation Example> (pH 5.8-6.0)

[0210]

[0211]

[0212] The components are mixed according to a conventional method to obtain a hair cleansing composition.

Claims

1. A hair washing composition comprising: Sodium lauroyl methyl-β-alanine taurate, Lauramidopropyl betaine, and Cocamide Methyl MEA. The composition according to claim 1 , further comprising a cationic polymer.

3. The composition according to claim 1 or 2, wherein The content of sodium lauroylmethyl-β-alanine taurate is 6 to 9% by weight relative to the total weight of the composition.

4. The composition according to any one of claims 1 to 3, wherein The content of lauramidopropyl betaine is 4 to 7% by weight relative to the total weight of the composition.

5. The composition according to any one of claims 1 to 4, wherein The content of cocamide methyl MEA is 1 to 3% by weight relative to the total weight of the composition. 6 . The composition according to claim 1 , further comprising polyoxyethylene sorbitan fatty acid ester, wherein the content of polyoxyethylene sorbitan fatty acid ester is 0.05 to 1% by weight relative to the total weight of the composition. 7 . The composition according to claim 1 , further comprising an α-olefin sulfonate, wherein the content of the α-olefin sulfonate is 1 to 5% by weight relative to the total weight of the composition.

8. The composition according to any one of claims 1 to 7, further comprising sodium N-toluenesulfonyl valine, wherein the content of sodium N-toluenesulfonyl valine is 0.001 to 2% by weight relative to the total weight of the composition. 9 . The composition according to claim 1 , which has a viscosity of 10 to 4000 mPa·s as measured at 25° C. using a B-type rotational viscometer.

10. Use of the composition according to any one of claims 1 to 9 for imparting a bouncy and firm feel to hair.

11. A method for imparting a springy and tough feel to hair, comprising: Hair is washed with the composition according to any one of claims 1 to 9.

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