Skin cleansing composition

Abstract

To provide skin wiping compositions that contain ethanol at a high concentration of 8 wt.% or more, can provide a sufficient refreshing feeling after wiping the skin, and can reduce the catches on the skin during the wiping operation.SOLUTION: A skin wiping composition containing polyethylene glycol with 8-20 wt.% of ethanol can provide a sufficient refreshing feeling at the time of wiping the skin with a wipe, such as cotton for makeup, in which the composition is impregnated, and can smoothly perform wiping operation and reduce the catches on the skin during the wiping operation.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a composition for wiping the skin, which provides a sufficient feeling of freshness (coolness) after wiping the skin and reduces the tendency of the skin to catch during the wiping operation. [Background technology]

[0002] Skin wiping compositions are widely used as skin care products that remove sebum and dirt from the skin to make the skin hygienic. In addition to the effect of removing sebum and dirt from the skin, skin wiping compositions are required to provide a refreshing feeling when used to wipe the skin in order to realize the effect. Ethanol has an excellent degreasing effect, so it is effective in removing sebum and dirt, and can also provide a refreshing feeling when used, and is therefore widely used as a compounding component of skin wiping compositions.

[0003] In order to improve the effect of removing sebum and dirt on the skin and the refreshing feeling of use when wiping, it is effective to blend ethanol at a high concentration in the skin wiping composition. However, when a skin wiping composition containing ethanol at a high concentration of 8% by weight or more is impregnated into a wiper such as cosmetic cotton to wipe the skin, there is a drawback that the skin is caught, making it difficult to perform a smooth wiping operation, and furthermore, irritation occurs due to friction caused by the skin being caught. Conventionally, a skin external composition containing diethylene glycol monoether and / or triethylene glycol monoether of a specific structure has been proposed as a preparation that has an improved feeling of use by reducing the amount of ethanol or not blending ethanol (see Patent Document 1). However, such a preparation with a reduced concentration of ethanol reduces the effect of removing sebum and dirt on the skin and the refreshing feeling of use when wiping, and therefore does not have satisfactory performance as a skin wiping composition.

[0004] In light of the background of such conventional technology, there is a strong need for the development of a skin wiping composition that contains a high concentration of ethanol, provides a sufficient feeling of freshness after wiping the skin, and reduces the tendency of the skin to catch during the wiping operation. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2008-50272 A Summary of the Invention [Problem to be solved by the invention]

[0006] The object of the present invention is to provide a composition for wiping the skin, which contains ethanol at a high concentration of 8% by weight or more, provides a sufficient feeling of freshness after wiping the skin, and reduces the tendency of the skin to catch during the wiping operation. [Means for solving the problem]

[0007] The present inventors have conducted intensive research to solve the above problems, and have found that a skin wiping composition containing polyethylene glycol together with 8 to 20% by weight of ethanol, when impregnated into a wiper such as cosmetic cotton and used to wipe the skin, provides a sufficient feeling of freshness, enables a smooth wiping operation, and reduces the skin from catching during the wiping operation. The present invention has been completed based on this finding and through further research.

[0008] That is, the present invention provides the following aspects. Item 1. A composition for wiping skin, comprising 8 to 20% by weight of ethanol and polyethylene glycol. Item 2. The composition for wiping skin according to Item 1, comprising 0.1 to 15% by weight of polyethylene glycol. Item 3. The composition for wiping skin according to item 1 or 2, further comprising propylene glycol and / or glycerin. Item 4. A skin wiping device comprising a wiping device impregnated with the composition for wiping skin according to any one of items 1 to 3. Item 5. A method for wiping skin, comprising wiping the skin with the composition for wiping skin according to any one of items 1 to 3. Effect of the Invention

[0009] The composition for wiping skin of the present invention can provide a sufficient feeling of freshness (coolness) after wiping the skin, and can also smoothly perform the wiping operation to reduce catching on the skin, so that an excellent feeling of use and a feeling of effect can be obtained. In addition, one embodiment of the composition for wiping skin of the present invention can also sufficiently suppress stickiness due to the composition for wiping skin remaining after the wiping operation, and can further improve the feeling of use.

[0010] 1. Skin cleansing composition The composition for wiping skin of the present invention is characterized by containing 8 to 20% by weight of ethanol and polyethylene glycol. The composition for wiping skin of the present invention will be described in detail below.

[0011] [Ingredients included] The composition for wiping skin of the present invention contains 8 to 20% by weight of ethanol. Since the composition contains ethanol at such a high concentration, a refreshing feeling (cool feeling) can be fully felt after wiping the skin. In addition, since the composition for wiping skin of the present invention contains polyethylene glycol described later, even if the composition contains ethanol at a high concentration of 8 to 20% by weight, it is possible to perform a smooth wiping operation and reduce the catching on the skin during the wiping operation. From the viewpoint of more suitably providing the effect of removing sebum and dirt on the skin, the refreshing feeling after wiping the skin, and the effect of reducing the catching on the skin during the wiping operation, the concentration of ethanol in the composition for wiping skin of the present invention is preferably 8 to 17% by weight, more preferably 8 to 14% by weight, and particularly preferably 8 to 11% by weight.

[0012] The skin wiping composition of the present invention contains polyethylene glycol to enable a smooth wiping operation and reduce the skin catching during the wiping operation when the composition is impregnated into a wiping implement such as cosmetic cotton and used to wipe the skin.

[0013] The average molecular weight of the polyethylene glycol used in the present invention is not particularly limited, and for example, polyethylene glycol 300, polyethylene glycol 400, polyethylene glycol 600, polyethylene glycol 1000, polyethylene glycol 1500, polyethylene glycol 1540, polyethylene glycol 2000, polyethylene glycol 3350, polyethylene glycol 4000, polyethylene glycol 6000, polyethylene glycol 8000, polyethylene glycol 9000, polyethylene glycol 11000, polyethylene glycol 12000, polyethylene glycol 20000, and the like can be used. Among these polyethylene glycols, from the viewpoint of more effectively reducing the sticking to the skin during wiping operation, preferred are polyethylene glycol 400, polyethylene glycol 600, polyethylene glycol 1000, polyethylene glycol 1500, polyethylene glycol 1540, polyethylene glycol 2000, polyethylene glycol 3350, polyethylene glycol 4000, polyethylene glycol 6000, polyethylene glycol 8000, and polyethylene glycol 9000; more preferred are polyethylene glycol 600, polyethylene glycol 1000, polyethylene glycol 1500, polyethylene glycol 1540, polyethylene glycol 2000, polyethylene glycol 3350, polyethylene glycol 4000, and polyethylene glycol 6000; and particularly preferred are polyethylene glycol 1500, polyethylene glycol 1540, polyethylene glycol 2000, polyethylene glycol 3350, and polyethylene glycol 4000.

[0014] The concentration of polyethylene glycol in the composition for wiping skin of the present invention is, for example, 0.1 to 15% by weight. From the viewpoint of more effectively reducing the stickiness of the composition for wiping skin remaining on the skin after wiping while more effectively reducing the stickiness of the composition for wiping skin remaining on the skin after wiping, the concentration of polyethylene glycol in the composition for wiping skin of the present invention is preferably 0.3 to 10% by weight, more preferably 0.4 to 4% by weight, and particularly preferably 0.6 to 3% by weight.

[0015] The composition for wiping skin of the present invention may further contain propylene glycol. When propylene glycol is further contained, it can provide moisturizing properties. The concentration of propylene glycol in the composition for wiping skin of the present invention is not particularly limited, but may be, for example, 0.1 to 30% by weight, preferably 0.5 to 20% by weight, more preferably 1 to 10% by weight.

[0016] The composition for wiping skin of the present invention may further contain glycerin. When glycerin is further contained, it can provide moisturizing properties. The concentration of glycerin in the composition for wiping skin of the present invention is not particularly limited, but may be, for example, 0.1 to 30% by weight, preferably 0.5 to 20% by weight, and more preferably 1 to 10% by weight.

[0017] The composition for wiping skin of the present invention preferably contains water as a base. The content of water in the composition for wiping skin of the present invention may be the balance other than the ingredients to be blended, and may be, for example, 10 to 91.9% by weight, preferably 15 to 88% by weight, and more preferably 20 to 85% by weight.

[0018] The composition for wiping skin of the present invention may contain, in addition to the above-mentioned components, pharmacological components and additives that are used in ordinary compositions for wiping skin, as necessary.

[0019] Pharmacological ingredients that can be incorporated into the skin wiping composition of the present invention include, for example, antibacterial or bactericidal agents (isopropylmethylphenol, hinokitiol, chlorhexidine hydrochloride, chlorhexidine gluconate, triclosan, lysozyme chloride, sulfadiazine, benzalkonium chloride, dequalinium chloride, benzethonium chloride, cetylpyridinium chloride, etc.), antihistamines (chlorpheniramine maleate, etc.), local anesthetics (procaine, tetracaine, bupivacaine, mepipacaine, chloroprocaine, proparacaine, meprylcaine or salts thereof, orthocaine, oxetazane, etc.), and the like. In, oxypolyethylene glycol, Scopolia extract, percaminpase, tesit decitin, etc.), anti-inflammatory agents (dipotassium glycyrrhizinate, glycyrrhetinic acid, allantoin, ε-aminocaproic acid, indomethacin, felbinac, diclofenac sodium, loxoprofen sodium, etc.), skin protectants (collodion, castor oil, etc.), blood circulation promoting ingredients (vanillyl nonyl amide, nicotinic acid benzyl ester, capsaicin, capsicum extract, etc.), cooling agents (menthol, camphor, etc.), mucopolysaccharides (sodium chondroitin sulfate, glucosamine, etc.). These pharmacological ingredients may be used alone or in combination of two or more. When these pharmacological ingredients are contained, the content may be appropriately set according to the type of pharmacological ingredient used, the expected effect, etc.

[0020] Examples of additives that can be incorporated into the skin wiping composition of the present invention include monohydric lower alcohols other than ethanol (propanol, isopropanol, butanol, etc.), polyhydric alcohols other than those mentioned above (ethylene glycol, 1,3-butylene glycol, isoprene glycol, diethylene glycol, dipropylene glycol, polypropylene glycol, etc.), surfactants (nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants), preservatives (methylparaben, propylparaben, benzoic acid, sodium benzoate, sorbic acid, etc.), flavoring agents (citral, 1,8-thioneal, citronellal, farnesol, etc.), colorants (tar dyes (Brown No. 201, Blue No. 201, Yellow No. 4, Yellow No. 403, etc.), cocoa dyes, chlorophyll, aluminum oxide, etc.), thickeners (polyvinylpyrrolidone, sodium alginate, etc.), and the like. Examples of additives include additives such as cellulose acetate, ethyl cellulose, hydroxypropyl methylcellulose, sodium carboxymethylcellulose, xanthan gum, carrageenan, etc.), pH adjusters (phosphoric acid, hydrochloric acid, citric acid, sodium citrate, succinic acid, tartaric acid, sodium hydroxide, potassium hydroxide, triethanolamine, triisopropanolamine, etc.), wetting agents (sodium dl-pyrrolidone carboxylate solution, D-sorbitol solution, etc.), stabilizers (dibutyl hydroxytoluene, butyl hydroxyanisole, sodium edetate, sodium metaphosphate, L-arginine, L-aspartic acid, DL-alanine, glycine, sodium erythorbate, propyl gallate, sodium sulfite, sulfur dioxide, chlorogenic acid, catechin, rosemary extract, etc.), antioxidants, ultraviolet absorbers, chelating agents, adhesives, buffers, dissolution aids, and solubilizers. These additives may be used alone or in combination of two or more. The content of these additives can be appropriately set depending on the formulation, etc.

[0021] [Formulation] The shape of the skin wiping composition of the present invention is not particularly limited, but it is preferably in a shape that is easy to use for wiping the skin, particularly in a shape that is easy to impregnate a wiping tool, and specifically, it is preferably in a liquid or semi-solid shape (gel, ointment, paste).

[0022] Specific examples of the formulation of the composition for wiping skin of the present invention include liquids, emulsions, lotions, gels, ointments, creams, etc. Among these formulations, preferred are liquids, emulsions, and lotions.

[0023] [How to use] The composition for wiping skin of the present invention is used for wiping skin for skin care. The method of wiping skin with the composition for wiping skin of the present invention is not particularly limited, but it is preferable to impregnate a wiping tool with an appropriate amount of the composition and wipe skin requiring skin care.

[0024] The wiping implement to be impregnated with the skin wiping composition of the present invention may be any that can be used to wipe the skin, and examples of such wiping implements include cosmetic cotton, cosmetic puffs, nonwoven fabric sheets, woven fabric sheets (e.g., gauze), sponges, etc. The constituent materials of these wiping implements are not particularly limited, and may be, for example, any of natural fibers, regenerated fibers, semi-synthetic fibers, synthetic fibers, synthetic resins, etc., but from the viewpoint of the feeling of use when wiping, natural fibers are preferred, and cotton is more preferred.

[0025] Among these wiping implements, from the viewpoint of usability during wiping, preferred are cosmetic cotton and nonwoven fabric sheets, and more preferred are cosmetic cotton.

[0026] The skin to which the composition for wiping skin of the present invention is applied may be any part of the skin from which removal of sebum and dirt is desired, such as the face, neck, hands, arms, legs, etc., and preferably the face.

[0027] 2.Skin cleaning tool The skin wiping device of the present invention is characterized in that the skin wiping composition is impregnated into a wiping device. The composition and formulation of the skin wiping composition used in the skin wiping device of the present invention, the type and material of the wiping device, etc. are as described in the above section "1. Skin wiping composition". EXAMPLES

[0028] The present invention will be described in more detail below by way of examples, but the present invention should not be construed as being limited to these examples.

[0029] Test Example 1 Skin wiping compositions (skin wiping lotions) having the compositions shown in Tables 1 to 3 were prepared, and the degree of stickiness of the skin when wiped and the degree of stickiness of the skin wiping composition remaining on the skin after wiping were evaluated using the following methods.

[0030] A cosmetic cotton (100% cotton, 7 cm x 5 cm, 4 layers) was impregnated with 4 ml of the skin cleaning composition to prepare a skin cleaning tool. The obtained skin cleaning tool was used to wipe the skin on the inside of the lower arm 3 to 4 times. The degree of skin catching during the wiping operation was scored by conducting a questionnaire using a visual analogue scale (hereinafter referred to as VAS), with "0" indicating that the catching was not bothersome at all and "10" indicating that the catching was very bothersome. In addition, the degree of stickiness due to the skin cleaning composition remaining on the skin after the wiping operation was scored by conducting a questionnaire using a VAS, with "0" indicating that the stickiness was not bothersome at all and "10" indicating that the stickiness was very bothersome. This test was conducted by 10 expert evaluation panelists, and the average score of each item was calculated and judged according to the following criteria. <Degree of skin catching during wiping operation> ◎: The average score is less than 4 points (no noticeable issues at all) ○: The average score is between 4 and 6 points (there is little noticeable difficulty) △: Average score is between 6 and 7 points (level where some difficulty is noticeable) ×: Average score is 7 or more (level where the problem is clearly noticeable) <Degree of stickiness due to skin wiping composition remaining on the skin after wiping operation> ◎: Average score is less than 6 points (stickiness is not noticeable at all) ○: Average score is 6 or more and less than 8 points (stickiness is barely noticeable) ×: Average score of 8 points or more (stickiness is clearly noticeable)

[0031] The results are shown in Tables 1 to 3. In the skin wiping composition containing 8 to 17% by weight of ethanol, when polyethylene glycol was not contained, the skin was caught during wiping, making it difficult to perform a smooth wiping operation (Comparative Examples 1 to 4). In contrast, it was confirmed that, even if the ethanol concentration was as high as 8 to 17% by weight, when polyethylene glycol was contained, the skin was less caught during wiping, and the stickiness due to the skin wiping composition remaining on the skin after wiping could also be suppressed (Examples 1 to 43). In particular, when 0.6 to 3% by weight of polyethylene glycol was contained together with 8 to 17% by weight of ethanol, the skin was significantly less caught during wiping, and the stickiness due to the skin wiping composition remaining on the skin after wiping was not noticeable at all (Examples 9 to 30). The skin wiping compositions of Examples 1 to 43 provided a sufficiently refreshing feeling of use (refreshing feeling) when wiped, and also had an excellent feeling of use.

[0032] [Table 1]

[0033] [Table 2]

[0034] [Table 3]

[0035] Test Example 2 In the above-mentioned Test Example 1, the compositions for wiping the skin of Examples 1 to 43 contained 8% by weight or more of ethanol, and therefore had excellent usability, and a refreshing usability (refreshing feeling) was sufficiently felt when wiping. Therefore, the following test was carried out to evaluate the refreshing feeling after wiping the skin of the compositions for wiping the skin having an ethanol concentration of 8% by weight or less.

[0036] The skin wiping composition (skin wiping lotion) of Comparative Example 5 shown in Table 4 was prepared, and 4 ml of the skin wiping composition was impregnated into cosmetic cotton (100% cotton, 7 cm x 5 cm, 4 layers) to prepare a skin wiping tool. The obtained skin wiping tool was used to wipe the skin on the inside of the lower arm 3 to 4 times. The degree of refreshing feeling (cool feeling) after the wiping operation was as follows: The results were scored by conducting a questionnaire using a VAS, with "0" being a score for no refreshing feeling (cool feeling) and "10" being a score for a sufficient refreshing feeling (cool feeling). This test was conducted by 10 expert evaluation panelists, and the average score was calculated and judged according to the following criteria. For reference, the same test was also conducted on the composition for wiping the skin of Example 17. <Degree of refreshing feeling (cool feeling) after wiping> ◎: Average score of 8 points or more (level recognized as having a good refreshing feeling and excellent usability) ○: The average score is between 4 and 8 points (a level that is considered to be refreshing and has a good usability). ×: Average score is less than 4 points (low feeling of freshness, poor usability)

[0037] The results are shown in Table 4. As a result, when the ethanol concentration was 6% by weight, even if polyethylene glycol was contained, the refreshing feeling (cool feeling) when wiping the skin was insufficient (Comparative Example 5). That is, from this result, it was confirmed that by containing 8% by weight or more of ethanol, an excellent refreshing feeling (cool feeling) can be imparted after wiping the skin.

[0038] [Table 4]

Claims

1. Contains 8-20% by weight of ethanol, polyethylene glycol, and propylene glycol; The polyethylene glycol is polyethylene glycol 600, polyethylene glycol 1000, polyethylene glycol 1500, polyethylene glycol 1540, polyethylene glycol 2000, polyethylene glycol 3350, polyethylene glycol 4000, or polyethylene glycol 6000 (however, excluding those containing a keratolytic agent, those containing phospholipids, those containing α-hydroxy acid and / or a salt thereof, those containing a polymer formed using dimethyldiallylammonium chloride as an essential monomer component, those containing polyoxyethylene fatty acid glyceryl, those containing tris(hydroxymethyl)aminomethane, and those having an HLB of 10 to 13 and containing a polyoxyethylene alkyl ether having an alkyl group having 10 to 18 carbon atoms or a polyoxyethylene alkenyl ether having an alkenyl group having 10 to 18 carbon atoms).

2. The skin wiping composition according to claim 1, comprising 0.1 to 15% by weight of polyethylene glycol.

3. The skin wiping composition according to claim 1 or 2, further comprising glycerin.

4. A skin wiping device comprising a wiping device impregnated with the skin wiping composition according to any one of claims 1 to 3.

5. A method for wiping skin, comprising wiping the skin with the composition for wiping skin according to any one of claims 1 to 3.

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