Aqueous composition for body use

Abstract

To provide an aqueous composition for body use that is applied to the body before sweating, and after sweating occurs, allows the composition to transition to the clothing with the sweat, resulting in the diffusion of both the sweat and the composition within the fabric and aiding in the evaporation of sweat, thereby reducing the sensation of clothing sticking to the skin and lessening discomfort from sweat.SOLUTION: An aqueous composition for body use includes following components (A), (B), (C), and (D): (A) a polyoxyethylene alkyl ether that includes an alkyl group with a carbon chain length of 10-18 and has an HLB of 10-18, (B) a glycerol fatty acid ester or polyglyceryl fatty acid ester that includes a fatty acid with a carbon chain length of 6-14 and an HLB of 4-12, (C) an alkylene oxide derivative with a molecular weight of 500-5000, and (D) water.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to an aqueous composition for personal use. [Background technology]

[0002] Conventionally, various deodorants have been used as external skin preparations for suppressing stickiness and odor caused by sebum and sweat and for imparting a refreshing feeling. Such deodorants contain various metal salts as antiperspirants to stop sweating. For example, Patent Document 1 describes that an antiperspirant composition containing an antiperspirant component, a germicidal component, one or more selected from triglyceride, fatty acid isoamyl, and linear alkyl-modified silicone, a specific polyoxyethylene alkyl ether, and water does not cause stickiness, tightness, or irritation to the skin after application, and has excellent deodorizing effects and formulation stability. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-55937 A Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional deodorants are applied to the skin to stop sweating by blocking sweat glands, which means that there is a possibility that they may not be able to fully utilize the sweat's original function. Also, if the amount of sweat produced is too much, the sweat cannot be stopped, and clothes become wet and stick to the skin, causing discomfort. [Means for solving the problem]

[0005] The present inventors have investigated ways to eliminate the discomfort caused by sweat, such as sticking, by quickly transferring sweat to clothing and diffusing and evaporating it in the clothing while making the most of the sweating function without adjusting the amount of sweating. As a result, they have found that these problems can be solved by using an aqueous composition that combines a specific polyoxyethylene alkyl ether with a glycerin fatty acid ester or a polyglycerin fatty acid ester, and further an alkylene oxide derivative.

[0006] The present invention comprises the following components (A), (B), (C) and (D): (A) a polyoxyethylene alkyl ether having an alkyl group with a carbon chain length of 10 to 18 and an HLB value of 10 to 18; (B) a glycerol fatty acid ester or a polyglycerol fatty acid ester having a fatty acid carbon chain length of 6 to 14 and an HLB value of 4 to 12; (C) an alkylene oxide derivative having a molecular weight of 500 to 5,000; (D)Water The present invention relates to an aqueous composition for personal use comprising the above compound. Effect of the Invention

[0007] The aqueous composition for body use of the present invention is applied to the body before sweating, and when sweat is released, the composition is transferred to clothes together with the sweat, and the sweat and the composition are diffused in the clothes, and the sweat evaporates, thereby suppressing the sticky feeling and reducing the discomfort caused by sweat. In addition, the composition of the present invention has the effect of sustaining the effect by remaining on the skin and clothes. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] The polyoxyethylene alkyl ether of component (A) used in the present invention has an alkyl group carbon chain length of 10-18, and preferably 12-16. In addition, the HLB value is 10-18, and 12-14 is preferable.

[0009] In the present invention, HLB (Hydrophilic-Lipophilic Balance) indicates the molecular weight of the hydrophilic group portion in the total molecular weight of the surfactant, and is calculated by Griffin's formula. When a surfactant is composed of two or more nonionic surfactants, the HLB of the mixed surfactant is calculated as follows. The HLB of the mixed surfactant is the phase arithmetic average of the HLB values ​​of each nonionic surfactant based on the blending ratio. Mixed HLB=Σ(HLBx×Wx) / ΣWx HLBx indicates the HLB value of the nonionic surfactant X. Wx represents the mass (g) of the nonionic surfactant X having the value of HLBx.

[0010] As component (A), from the viewpoint of dissolving in sweat and improving migration to clothing, thereby suppressing the feeling of clothing sticking to the skin, a polyoxyethylene alkyl ether having a carbon chain length of 12 to 16 and an HLB value of 12 to 14 is preferred.

[0011] Component (A) can be used alone or in combination of two or more kinds. From the viewpoint of improving transferability to clothing and reducing the sticky feeling, and from the viewpoint of the occurrence of a sticky feeling when the content is increased, the content is preferably 0.15 to 2 mass % of the total composition, more preferably 0.2 to 1.5 mass %, and even more preferably 0.2 to 1 mass %.

[0012] The glycerol fatty acid ester or polyglycerol fatty acid ester of component (B) has a fatty acid carbon chain length of 6-14, preferably 8-12. In addition, the HLB value is 4 to 12, and preferably 6 to 9.

[0013] Furthermore, from the viewpoint of improving the wetting and spreading properties of the composition after it is transferred to clothing and suppressing the feeling of the clothing sticking to the skin, the component (B) is preferably a monoester or a triester. As component (B), from the viewpoint of improving the wetting and spreading properties after transfer to clothing and suppressing the feeling of clothing sticking to the skin, a glycerin fatty acid ester or a polyglycerin fatty acid ester having a fatty acid carbon chain length of 8 to 12 and an HLB value of 6 to 9 is preferred.

[0014] Component (B) can be used alone or in combination of two or more kinds. The content is preferably 0.04 to 1.2 mass% of the total composition, more preferably 0.1 to 0.6 mass%, and even more preferably 0.1 to 0.3 mass%, from the viewpoint of improving the wetting and spreading properties after transfer to clothing and reducing the feeling of clothing sticking to the skin, and from the viewpoint of the occurrence of a sticky feeling when the content is high.

[0015] In the present invention, the total content of components (A) and (B) is preferably 0.3 to 2.4 mass%, more preferably 0.6 to 2.4 mass%, and even more preferably 0.6 to 1.2 mass%, of the total composition, from the viewpoints of improving transferability to clothing, improving wetting and spreading in clothing, and providing an excellent feel when applied to the skin.

[0016] In the present invention, the mass ratio (A) / (B) of component (A) to component (B) is preferably 1 to 6, more preferably 2 to 5, and even more preferably 2 to 3, from the viewpoint of transferring the composition to clothing together with sweat and improving the wetting and spreading properties in the clothing after transfer.

[0017] The component (C) used in the present invention is an alkylene oxide derivative having a molecular weight of 500-5,000. Component (C), together with components (A) and (B), remains on the skin or in clothing, and has a molecular weight of 500 to 5,000, preferably 600 to 1,500, from the viewpoint of reducing sticky feeling. Here, the molecular weight is a value calculated from the molecular structure.

[0018] The alkylene oxide derivative of component (C) has a polyoxyalkylene group, and the average number of moles of alkyleneoxy groups added is preferably 5 to 500, more preferably 5 to 250, even more preferably 5 to 100, and even more preferably 5 to 50, from the viewpoint of residual property on the skin together with components (A) and (B). The alkylene group of the alkyleneoxy group preferably has 1 to 4 carbon atoms, and examples thereof include an ethylene group, a propylene group, and a butylene group, with an ethylene group and a propylene group being preferred.

[0019] Examples of the alkylene oxide derivative of component (C) include polyhydric alcohol ether compounds of polyalkylene oxides (polyalkylene oxide polyol ethers) and lower alkyl ether compounds of polyalkylene oxides (polyalkylene oxide lower alkyl ethers). From the viewpoint of residual properties on the skin, polyalkylene oxide polyol ethers are preferred along with components (A) and (B).

[0020] Examples of the polyalkylene oxide polyol ether include: Glucose ether compounds or methyl glucose ether compounds of polyalkylene oxides such as polyoxyethylene methyl glucoside and polyoxypropylene methyl glucoside; glyceryl ether compounds of polyalkylene oxides, such as polyoxyethylene glyceryl ether, polyoxypropylene glyceryl ether, polyoxyethylene polyoxypropylene glyceryl ether, and polyoxyethylene polyoxypropylene polyoxybutylene glyceryl ether; Diglyceryl ether compounds of polyalkylene oxides such as polyoxypropylene diglyceryl ether; Glycol ether compounds of polyalkylene oxides such as polyoxyethylene polyoxypropylene hexylene glycol; Examples of the sorbitol ether compound include polyalkylene oxide sorbitol ether compounds such as polyoxypropylene sorbitol ether. Among these, from the viewpoint of the residual property on the skin together with the components (A) and (B), glucose ether compounds or methyl glucose ether compounds of polyalkylene oxides, and glyceryl ether compounds of polyalkylene oxides are preferred.

[0021] As the polyalkylene oxide lower alkyl ether, polyalkylene oxide butyl ether is preferred, and polyoxyethylene polyoxypropylene butyl ether is more preferred.

[0022] The alkylene oxide derivative of component (C) may be a commercially available product or one synthesized according to a conventional method. Commercially available examples of methyl glucose ether compounds of polyalkylene oxide include macbiobride MG-10E and MG-20E, which are polyoxyethylene methyl glucosides, and macbiobride MG-10P and MG-20P, which are polyoxypropylene methyl glucosides (all manufactured by NOF Corporation).

[0023] Commercially available examples of polyalkylene oxide glyceryl ether compounds include Conion RG-120 (manufactured by New Japan Chemical Co., Ltd.), which is a polyoxyethylene glyceryl ether, Newpol GP-600 (manufactured by Sanyo Chemical Industries, Ltd.), which is a polyoxypropylene glyceryl ether, Unilube 50TG-32 (manufactured by NOF Corporation), which is a polyoxyethylene polyoxypropylene glyceryl ether, and Wilbride S-753D (manufactured by NOF Corporation), which is a polyoxyethylene polyoxypropylene polyoxybutylene glyceryl ether. Commercially available polyalkylene oxide diglyceryl ether compounds include, for example, polyoxypropylene diglyceryl ethers SY-DP9 and SY-DP14T (both manufactured by Sakamoto Pharmaceutical Co., Ltd.), and Unilube DGP-700 and 950 (both manufactured by NOF Corporation).

[0024] An example of a commercially available product of a glycol ether compound of a polyalkylene oxide is Newpol 75 H-90000 (manufactured by Sanyo Chemical Industries, Ltd.), which is a polyoxyethylene polyoxypropylene hexylene glycol. An example of a commercially available product of a sorbitol ether compound of a polyalkylene oxide is Newpol SP-750 (manufactured by Sanyo Chemical Industries, Ltd.), which is a polyoxypropylene sorbitol ether.

[0025] Commercially available polyalkylene oxide butyl ethers include, for example, polyoxyethylene polyoxypropylene butyl ethers such as Unilube 50MB-26 (manufactured by NOF Corp.), Newpol 50HB-260, and 50HB-5100 (all manufactured by Sanyo Chemical Industries, Ltd.).

[0026] From the viewpoint of allowing components (A) and (B) to remain on the skin, component (C) is preferably a polyoxyalkylene alkyl glucoside, more preferably one in which the average number of moles added of alkyleneoxy groups is 10 to 20 and the alkylene group has a carbon number of 1 to 4. Furthermore, polyoxyalkylene methyl glucoside is preferred, and polyoxyethylene methyl glucoside and polyoxypropylene methyl glucoside are more preferred.

[0027] Component (C) can be used alone or in combination of two or more types. From the viewpoint of allowing components (A) and (B) to remain on the skin, the content is preferably 0.5 to 5 mass% of the total composition, and more preferably 0.5 to 3 mass%.

[0028] In the present invention, from the viewpoint of uniformly dissolving and dispersing components (A), (B), (C) and other components, the content of water in component (D) is preferably 10 to 99.2 mass% of the total composition, more preferably 15 to 80 mass%, even more preferably 20 to 60 mass%, and even more preferably 20 to 40 mass%.

[0029] The aqueous composition for personal use of the present invention preferably further contains ethanol from the viewpoint of the feeling during and after application to the skin and from the viewpoint of providing a refreshing feeling. The content of ethanol in the total composition is preferably 0 to 90% by mass, more preferably 20 to 80% by mass, and even more preferably 40 to 80% by mass.

[0030] In addition to the above-mentioned components, the aqueous composition for personal use of the present invention may contain components that are usually used in cosmetics, such as surfactants other than those mentioned above, water-soluble thickeners, polyhydric alcohols, powders, antioxidants, ultraviolet absorbers, fragrances, preservatives, pH adjusters, blood circulation promoters, cooling agents, skin activators, and cooling agents.

[0031] The aqueous composition for body use of the present invention can eliminate discomfort such as sticky feeling caused by sweat without containing a bactericide or antiperspirant that is usually used in compositions having a deodorant effect, but may contain these. Examples of the disinfectant include isopropylmethylphenol, benzalkonium chloride, triclosan, piroctone olamine, benzethonium chloride, alkyltrimethylammonium chloride, cetyltrimethylammonium bromide, triclocarban, salicylic acid, paraben, chlorhexidine or a salt thereof, lysozyme or a salt thereof, acrinol, gluconic acid, alkyldiaminoglycine or a salt thereof, povidone iodine, potassium iodide, iodine, cresol, photosensitizer No. 101, photosensitizer No. 201, phenoxyethanol, 1,2-pentanediol, halocarban, 3,4,4-trichlorocarbanilide, triethyl citrate, resorcinol, phenol, sorbic acid, hexachlorophene, silver-supported zeolite, and silver-supported silica. Examples of antiperspirants include aluminum chlorohydrate, zinc oxide, zinc phenolsulfonate, aluminum chloride, aluminum potassium sulfate, aluminum sulfate, aluminum acetate, aluminum allantoin chlorohydrate, aluminum zirconium octachlorhydrate, aluminum zirconium tetrachlorhydrate, aluminum zirconium trichlorhydrate, and zirconium chlorhydrate. When one or more selected from the group consisting of bactericides and antiperspirants are used, the total content thereof is preferably 0.1 to 20% by mass, and more preferably 0.3 to 15% by mass, of the entire composition.

[0032] The aqueous composition for body use of the present invention can be produced by a conventional method, and is preferably a liquid composition, for example, by uniformly mixing and stirring components (A), (B), (C), (D), ethanol and other components at room temperature (25° C.).

[0033] The dosage form of the aqueous composition for body use of the present invention is not particularly limited, and may be, for example, a roll-on type, a spray, a mist, an aerosol, a lotion, a gel, a sheet-like form impregnated into a nonwoven fabric, etc. Among these, the spray, mist, and roll-on types are preferred.

[0034] The aqueous composition for personal use of the present invention is used by applying it to the skin. Even if you sweat after that, the sweat will be transferred to the clothing, diffused within the clothing, and evaporated quickly, reducing discomfort such as sticking to the body. This makes it possible to reduce discomfort while still taking advantage of the sweat function, without stopping the sweat.

[0035] In the aqueous composition for body use of the present invention, it is believed that the dissolution of component (A) in sweat reduces the surface tension of sweat and the contact angle with clothing, improving the transferability (absorbency) of the clothing. In addition, the dissolution of component (B) in sweat reduces the forward contact angle of sweat on fibers, improving the wettability (diffusibility). Furthermore, it is believed that the combination of component (C) with components (A) and (B) has the effect of making components (A) and (B) more likely to remain on the skin or clothing. That is, it is believed that the composition of the present invention dissolves in sweat, gradually transfers to clothing together with sweat, and diffuses, suppressing the feeling of clothing sticking to the clothing, thereby reducing discomfort. EXAMPLES

[0036] Examples 1 to 15, Comparative Examples 1 to 14 Aqueous compositions for body use were prepared according to the compositions shown in Tables 1 and 2, and an adhesion test was carried out using a test cloth. The results are shown in Tables 1 and 2.

[0037] (Manufacturing method) Components (A), (B), (C), (D) and other components were mixed and stirred uniformly at room temperature (25° C.) to prepare an aqueous body composition.

[0038] (Evaluation method) 0.05 g of each composition was sprayed onto a 5 cm square piece of artificial leather, and after leaving it to stand for 2 hours, 0.1 g of a 0.3 mass% NaCl aqueous solution was sprayed onto it to represent the moisture content of sweat. A 6 cm square polyester test cloth (jersey: manufactured by Tanigashira Shoten) was then placed on top, and a 5 cm square 100 g weight was then placed on top to bring the cloth and artificial leather into close contact. The weight was then removed, and the static friction force when the cloth was pulled at a constant speed (16 mm / min) was measured using the following device. The smaller the static friction force measured under these conditions, the less sticky the feeling. (Measuring Equipment) Tribogear (friction meter): manufactured by Shinto Scientific Co., Ltd. Reciprocating device: Shinto Scientific Co., Ltd.

[0039] [Table 1]

[0040] [Table 2]

[0041] *1: Emulgen 109P (Kao Corporation, HLB 13.6), *2: Emulgen 1620G (Kao Corporation, HLB14), *3: Emulgen 108 (Kao Corporation, HLB 12.1), *4: Emulgen 120 (Kao Corporation, HLB 15.3), *5: Emulgen 116 (Kao Corporation, HLB 15.8), *6: Emulgen 123P (Kao Corporation, HLB 16.9), *7: Emulgen 103KG (Kao Corporation, HLB8.3), *8: Emulgen 150 (Kao Corporation, HLB 18.4), *9: Emulgen 320P (Kao Corporation, HLB 13.9), *10: Emulgen 2020G-HA (Kao Corporation, HLB13), *11: Leodol TW-L106 (Kao Corporation, HLB 13.3, active ingredient amount 97.3%; the values ​​in the table indicate the amount of active ingredient), *12: Emanon CH-40 (Kao Corporation, HLB12.5), *13: Sunsoft A-14E-C (Taiyo Kagaku, HLB 15.4), *14: Sunsoft 760-C (Taiyo Kagaku, HLB 6.5), *15: Sunsoft 700P-2-C (Taiyo Kagaku, HLB7.2), *16: Sunsoft Q-12D-C (Taiyo Kagaku, HLB8.5), *17: Sunsoft Q-10D-C (Taiyo Kagaku, HLB 9.5), *18: Sunsoft Q-123Y-C (Taiyo Kagaku, HLB 10.4), *19: Sansoft O-30S-C (Taiyo Kagaku, HLB 2.8), *20: Sunsoft Q-81F-C (Taiyo Kagaku, HLB13), *21: Emulgen 103KG (Kao Corporation, HLB8.3), *22: Emulgen 306P (Kao Corporation, HLB 9.4), *23: Macbio Bright MG-20P (NOF Corporation, molecular weight 1354), *24: Macbio Bright MG-10P (NOF Corporation, molecular weight 774), *25: Macbio Bright MG-20E (NOF Corporation, molecular weight 1074), *26: Macbio Bright MG-10E (NOF Corporation, molecular weight 634), *27: Wilbride S-753D (NOF Corporation, molecular weight 950)

Claims

1. The following components (A), (B), (C), and (D): (A) a polyoxyethylene alkyl ether having an alkyl group carbon chain length of 10 to 18 and an HLB of 10 to 18; (B) a glycerin fatty acid ester or a polyglycerin fatty acid ester having a fatty acid carbon chain length of 6 to 14 and an HLB of 4 to 12; (C) an alkylene oxide derivative having a molecular weight of 500 to 5,000; (D) Water An aqueous body composition comprising:

2. 2. The aqueous body care composition according to claim 1, wherein the mass ratio (A) / (B) of component (A) to component (B) is 1 to 6.

3. 3. The aqueous composition for personal use according to claim 1, wherein the total content of components (A) and (B) is 0.3 to 2.4% by mass.

4. 3. The aqueous body care composition according to claim 1, wherein the component (C) is a polyoxyalkylene alkyl glucoside.

5. 3. The aqueous composition for personal care according to claim 1, wherein the content of component (C) is 0.5 to 5% by mass.