Skin cleansing composition

Abstract

To provide a skin washing agent composition that is generally excellent in reduced skin sliminess after washing, moisture retention, and softness.SOLUTION: A skin washing agent composition contains (A) amino acid-based surfactant, (B) amphiphilic ester, and (C) cationized hyaluronic acid and / or a salt thereof. The skin washing agent composition is generally excellent in reduced skin sliminess after washing, moisture retention, and softness.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a skin cleansing composition which is excellent overall in suppressing stickiness, moisturizing, and softening the skin after washing. [Background technology]

[0002] As products for cleaning the skin and keeping it clean, various skin cleansing compositions such as face washes, body soaps, and shampoos are provided. A surfactant is essential for the mechanism by which skin cleansing compositions cleanse the skin. Examples of surfactants used in skin cleansing compositions include anionic surfactants, nonionic surfactants, and amphoteric surfactants. In particular, anionic surfactants have excellent cleaning properties and good wash-off properties, and are therefore used in many skin cleansing compositions. On the other hand, in consideration of the skin irritation caused by anionic surfactants, various skin cleansing compositions have been proposed that contain a surfactant other than an anionic surfactant as the main surfactant. In these skin cleansing compositions, a component that compensates for wash-off properties, etc., may be added by replacing the anionic surfactant with another surfactant.

[0003] For example, Patent Document 1 discloses a cleansing composition containing polyoxyethylene alkyl ether acetic acid with a neutralization rate of 30 to 70% and an N-acyl glutamate or an N-acylaspartate, and describes that a specifically prepared makeup remover facial cleanser provides an excellent feeling of use (refreshing feeling, no sticky feeling). Patent Document 2 discloses a transparent cleansing cosmetic containing a specific content of a liquid nonionic surfactant with an HLB value of 5.5 or less, a nonionic surfactant with an HLB value of 8 or more, oil, water, an amphiphilic substance, and one or more water-soluble components selected from the group consisting of a monohydric alcohol, a polyhydric alcohol, and an alkylene oxide derivative, and describes that a specifically prepared makeup remover, cleansing oil, and eye makeup remover provide an excellent cleansing effect, feel during use, ease of rinsing, and a refreshing feeling after use. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 6-25695 [Patent Document 2] JP 2014-152108 A Summary of the Invention [Problem to be solved by the invention]

[0005] The detergent composition disclosed in Patent Document 1 and the cleansing cosmetic composition disclosed in Patent Document 2 achieve suppression of sticky feeling (ease of washing off), but because emphasis is placed on a refreshing feeling after use, the moisturizing feeling and softness of the skin after use are easily lost. In other words, the skin cleansing compositions to date have been unable to simultaneously suppress sticky feeling after use and moisturize and soften the skin, and have not been excellent in overall usability.

[0006] Therefore, an object of the present invention is to provide a skin cleansing composition which is excellent overall in suppressing the sticky feeling on the skin after washing, and in providing a moisturizing feeling and a soft feeling on the skin. [Means for solving the problem]

[0007] As a result of intensive research, the present inventors have found that by blending an amphiphilic ester and a cationized hyaluronic acid and / or a salt thereof together with an amino acid surfactant in a skin cleansing composition, the stickiness of the skin after washing is suppressed, and a moisturizing and softening feeling is also satisfactorily exhibited. The present invention was completed through further research based on this finding.

[0008] That is, the present invention provides the following aspects. Item 1. A skin cleansing composition comprising (A) an amino acid-derived surfactant, (B) an amphiphilic ester, and (C) cationized hyaluronic acid and / or a salt thereof. Item 2. The skin cleansing composition according to Item 1, wherein the component (B) is selected from the group consisting of dicarboxylic acid bis(polyoxyalkylene alkyl ether) esters and polyglyceryl-10 (eicosadioate / tetradecanedioate). Item 3. The skin cleansing composition according to Item 2, wherein the dicarboxylic acid bis(polyoxyalkylene alkyl ether) ester is cyclohexane-1,4-dicarboxylate bis(ethoxydiglycol). Item 4. The skin cleansing composition according to any one of Items 1 to 3, wherein the component (C) is hydroxypropyltrimonium hyaluronate. Item 5. The skin cleansing composition according to any one of Items 1 to 4, further comprising (D) lecithin and / or lysolecithin. Effect of the Invention

[0009] The skin cleansing composition of the present invention can comprehensively suppress the sticky feeling on the skin after washing, and also provide a moisturizing feeling and a soft feeling. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The skin cleansing composition of the present invention is characterized by containing (A) an amino acid derived surfactant (hereinafter also referred to as component (A)), (B) an amphiphilic ester (hereinafter also referred to as component (B)), and (C) a cationized hyaluronic acid and / or a salt thereof (hereinafter also referred to as component (C)). The skin cleansing composition of the present invention will be described in detail below.

[0011] (A) Amino acid surfactant The skin cleansing composition of the present invention contains an amino acid-derived surfactant as component (A). By using an amino acid-derived surfactant, the skin cleansing composition can reduce skin irritation while exhibiting excellent cleansing power. In addition, by allowing component (A) to coexist with components (B) and (C), a moisturizing feeling and / or soft feeling on the skin after washing can be obtained satisfactorily.

[0012] Examples of the amino acid surfactant include an amino acid anionic surfactant and an amino acid amphoteric surfactant from the viewpoint of obtaining preferable cleaning power, skin irritation reduction, moisturizing feeling and / or softening feeling. As the amino acid surfactant, either one of the amino acid anionic surfactant and the amino acid amphoteric surfactant may be used, or both may be used in combination.

[0013] The amino acid anionic surfactant used in the present invention includes carboxylic acid type amino acid anionic surfactants and sulfonic acid type amino acid anionic surfactants.

[0014] Examples of the carboxylic acid type amino acid anionic surfactant include N-acylamino acids having a saturated or unsaturated N-acyl group having 8 to 24 carbon atoms, such as an octanoyl group, a decanoyl group, a lauroyl group, a myristoyl group, a palmitoyl group, and a cocoyl group. Examples of the N-acylamino acids in the carboxylic acid type amino acid anionic surfactant include N-acylsarcosine, N-acylaspartic acid, N-acylglutamic acid, and N-acyl-N-methyl-β-alanine. More specific examples of the carboxylic acid type amino acid anionic surfactant include N-lauroylsarcosine, cocoylsarcosine, N-lauroylaspartic acid, cocoylaspartic acid, N-lauroylglutamic acid, cocoylglutamic acid, N-lauroyl-N-methyl-β-alanine, and cocoylmethylalanine.

[0015] Examples of the sulfonic acid type amino acid anionic surfactant include N-acyl-N-methyltaurine having a saturated or unsaturated N-acyl group having 8 to 24 carbon atoms, such as an octanoyl group, a decanoyl group, a lauroyl group, a myristoyl group, a palmitoyl group, a cocoyl group, etc. More specific examples of the sulfonic acid type amino acid anionic surfactant include N-myristoyl-N-methyltaurine, N-lauroyl-N-methyltaurine, and cocoyl methyltaurine.

[0016] These amino acid anionic surfactants may be in the form of a salt, for example, an alkali metal salt such as a sodium salt or a potassium salt; a triethanolamine (TEA) salt; an ammonium salt, or the like.

[0017] Among these amino acid-based anionic surfactants, from the viewpoint of obtaining preferable detergency, skin irritation reduction, moisturizing feeling and / or softening feeling, preferred are N-lauroyl aspartic acid, cocoyl glutamic acid, N-lauroyl-N-methyl-β-alanine, cocoyl methyl alanine and cocoyl methyl taurine, and more preferred are sodium N-lauroyl aspartate, triethanolamine cocoyl glutamate, sodium N-lauroyl-N-methyl-β-alanine, sodium cocoyl methyl alanine and sodium cocoyl methyl taurine.

[0018] As the amino acid-based anionic surfactant, one type may be used alone from the above-mentioned carboxylic acid-type amino acid-based anionic surfactants and sulfonic acid-type amino acid-based anionic surfactants, or two or more types may be used in combination.

[0019] These amino acid-based anionic surfactants may be used alone or in combination of two or more.

[0020] Examples of the amino acid-based amphoteric surfactants used in the present invention include amidobetaine-type amphoteric surfactants and alkylbetaine-type amphoteric surfactants. From the viewpoint of obtaining preferable cleaning power, skin irritation reduction, moisturizing feeling and / or soft feeling, preferred examples of the amino acid-based amphoteric surfactants include amidobetaine-type amphoteric surfactants.

[0021] Amidobetaine amphoteric surfactants are represented by the general formula R 1 CO-NH-(CH2) n -N + (CH3)2CH2CO2 - (In the formula, R 1The CO- group represents a saturated or unsaturated N-acyl group having 8 to 24 carbon atoms, such as an octanoyl group, a decanoyl group, a lauroyl group, a myristoyl group, a palmitoyl group, a cocoyl group, and the like, and n represents an integer of 2 to 8.) From the viewpoint of preferably obtaining detergency, skin irritation reduction, moisturizing feeling and / or soft feeling, preferred examples include cocamidopropyl betaine, lauric acid amidopropyl betaine, and the like, and more preferred examples include cocamidopropyl betaine.

[0022] Alkyl betaine amphoteric surfactants are represented by the general formula R 2 -N + (CH3)2CH2CO2 - (In the formula, R 2 The group represents a saturated or unsaturated alkyl group having 8 to 24 carbon atoms, such as an octyl group, a decyl group, a lauryl group, a myristyl group, a palmityl group, or a coconut oil fatty acid alkyl group.) From the viewpoint of obtaining preferable detergency, skin irritation reduction, moisturizing feeling and / or soft feeling, preferred examples thereof include lauryl dimethyl acetate betaine and tetradecyl dimethyl amino acetate betaine.

[0023] These amino acid based amphoteric surfactants may be used alone or in combination of two or more.

[0024] The content of the (A) component in the skin cleansing composition of the present invention is not particularly limited and may be appropriately determined depending on the cleaning power to be imparted, and may be, for example, 0.025 to 20% by weight, preferably 0.025 to 10% by weight. In addition, since the (A) component coexists with the (B) component described below, the skin cleansing composition of the present invention can effectively exhibit cleaning power even with a small content of the (A) component. From this viewpoint, in order to further reduce skin irritation, the upper limit of the above range of the content of the (A) component is, for example, 8% by weight or less, preferably 5% by weight or less, more preferably 2% by weight or less. In addition, from the viewpoint of obtaining a better cleaning power, the lower limit of the above range of the content of the (A) component is preferably 0.05% by weight or more, more preferably 0.1% by weight or more, and even more preferably 0.5% by weight or more. In addition, as described later, the skin cleansing composition of the present invention may contain a surfactant other than the (A) component, but when a surfactant other than the (A) component is contained, it is preferable that the total content of the (A) component and the surfactant other than the (A) component is adjusted to be within the above range.

[0025] (B) Amphiphilic ester The skin cleansing composition of the present invention contains an amphiphilic ester as component (B). By allowing component (B) to coexist with components (A) and (C), it is possible to obtain a good moisturizing feeling on the skin after washing.

[0026] Although component (B) does not exhibit a cleansing effect by itself, the coexistence of component (A) can improve the cleansing power of the skin cleansing composition.

[0027] In the present invention, the amphiphilic ester is one that dissolves at 2% by mass or more at room temperature in ion-exchanged water adjusted to a conductivity of 70 to 110 μs / m, when measured according to the method specified in the general testing methods of the Japanese Pharmacopoeia, and also dissolves at 10% by mass or more in the oil agent isotridecyl isononanoate (Salacos 913, manufactured by Nisshin Oillio Group, Ltd.) at room temperature (25° C.), and excludes ester-based surfactants.

[0028] The amphiphilic ester is not particularly limited, but is preferably selected from the group consisting of dicarboxylic acid bis(polyoxyalkylene alkyl ether) esters and (eicosane diacid / tetradecanedioic acid) polyglyceryl-10 from the viewpoint of obtaining a better moisturizing feeling and cleaning power. As the amphiphilic ester, any one of dicarboxylic acid bis(polyoxyalkylene alkyl ether) esters and (eicosane diacid / tetradecanedioic acid) polyglyceryl-10 may be used alone or both may be used in combination. Among these amphiphilic esters, dicarboxylic acid bis(polyoxyalkylene alkyl ether) esters are more preferable from the viewpoint of obtaining a better moisturizing feeling and cleaning power.

[0029] The dicarboxylic acid bis(polyoxyalkylene alkyl ether) ester used in the present invention is a diester compound of a dicarboxylic acid and a polyoxyalkylene alkyl ether. Specific examples of the dicarboxylic acid constituting the diester compound of the dicarboxylic acid bis(polyoxyalkylene alkyl ether) ester include, for example, oxalic acid, malonic acid, succinic acid, tartaric acid, malic acid, glutaric acid, adipic acid, pemelic acid, suberic acid, azelaic acid, sebacic acid, aspartic acid, glutamic acid, acetone dicarboxylic acid, phthalic acid, and cyclohexane-1,4-dicarboxylic acid. In addition, examples of the polyoxyalkylene alkyl ether constituting the diester compound include, for example, polyoxyethylene monoalkyl ether, and more specifically, for example, diethylene glycol monoethyl ether and triethylene glycol monoethyl ether.

[0030] Among these dicarboxylate bis(polyoxyalkylene alkyl ether) esters, from the viewpoint of obtaining a better moisturizing feeling and cleaning power, preferred are diester compounds of cyclohexane-1,4-dicarboxylic acid and diethylene glycol monoethyl ether, specifically, a compound called cyclohexane-1,4-dicarboxylate bisethoxydiglycol, represented by the INCI name (International Cosmetic Ingredient Dictionary and Handbook, 13th Edition, Vol. 1, CTFA, 2010, p. 331): BIS-ETHOXYDIGLYCOL CYCLOHEXANE 1,4-DICARBOXYLATE, and diester compounds of succinic acid and diethylene glycol monoethyl ether, specifically, a compound called cyclohexane-1,4-dicarboxylate bisethoxydiglycol, represented by the INCI name (International Cosmetic Ingredient Dictionary and Handbook, 13th Edition, Vol. 1, CTFA, 2010, p. 331-332): BIS-ETHOXYDIGLYCOL Examples of the compound include bisethoxydiglycol succinate, which is represented by SUCCINATE, and more preferably bisethoxydiglycol cyclohexane-1,4-dicarboxylate.

[0031] In the present invention, a specific example of the bis-ethoxydiglycol cyclohexane-1,4-dicarboxylate is "Neosolue-Aqulio (trade name)" manufactured by Nippon Fine Chemicals Co., Ltd., etc. In addition, a specific example of the bis-ethoxydiglycol succinate is "High Aquostar DCS (trade name)" manufactured by Kokyu Alcohol Kogyo Co., Ltd., etc.

[0032] These dicarboxylic acid bis(polyoxyalkylene alkyl ether) esters may be used alone or in combination of two or more.

[0033] The polyglyceryl-10 (eicosane diacid / tetradecanedioic acid) used in the present invention is not particularly limited, but examples thereof include "Neosolue-Aqua (trade name)" and "Neosolue-AquaS (trade name)" manufactured by Nippon Fine Chemical Co., Ltd.

[0034] The content of the (B) component in the skin cleansing composition of the present invention is not particularly limited, but may be, for example, 0.2% by weight or more. From the viewpoint of obtaining a better moisturizing feeling and cleaning power, the content of the (B) component is preferably 0.5% by weight or more. The upper limit of the above range of the content of the (B) component is not particularly limited, but from the viewpoint of the stability of the skin cleansing composition, for example, it may be 5% by weight or less, preferably 3% by weight or less, more preferably 2% by weight or less.

[0035] In the skin cleansing composition of the present invention, the ratio of the (A) component to the (B) component is not particularly limited and is determined by the above-mentioned respective contents. From the viewpoint of obtaining better moisturizing feeling and cleaning power, for example, the ratio of the (B) component to 1 part by weight of the (A) component is 0.01 to 100 parts by weight, preferably 0.01 to 10 parts by weight, and more preferably 0.04 to 5 parts by weight.

[0036] (C) Cationized hyaluronic acid and / or its salt The skin cleansing composition of the present invention contains cationized hyaluronic acid and / or a salt thereof as component (C). Cationized hyaluronic acid and / or a salt thereof is a compound in which a cationic group is bonded to a portion of hyaluronic acid and / or a salt thereof. Component (C) is a type of cationic polymer. When a cationic polymer is blended into a skin cleansing composition, it generally improves moisturizing feeling and softness, but at the same time, it tends to cause a sticky feeling on the skin after washing. However, when cationized hyaluronic acid and / or a salt thereof, which is one of the cationic polymers, is present together with component (A) and component (B), it is possible to improve moisturizing feeling and softness while suppressing the sticky feeling on the skin after washing.

[0037] In the present invention, as component (C), from among cationized hyaluronic acid and its salts, cationized hyaluronic acid, a cationized hyaluronate salt, or a combination of cationized hyaluronic acid and a cationized hyaluronate salt may be used.

[0038] The cationic group in the cationized hyaluronic acid and / or its salt is specifically a quaternary ammonium group-containing group, for example, a group represented by the general formula -CH2CH(OH)-CH2-N + (R 11 )(R 12 )-R 13 X - (In the formula, R 11 ~R 13 each independently represents a hydrocarbon group; X - R represents a monovalent anion. 11 ~R 13 Examples of the hydrocarbon group represented by the formula (1) include linear or branched alkyl groups, unsaturated hydrocarbon groups, and aromatic hydrocarbon groups, and preferably alkyl groups. Here, examples of the alkyl group include alkyl groups having 1 to 30 carbon atoms (preferably 1 to 6 carbon atoms), and more preferably alkyl groups having 1 to 3 carbon atoms, such as methyl, ethyl, n-propyl, and isopropyl groups. X - Examples of the monovalent anion represented by the formula (1) include halogen ions such as fluorine ion, bromine ion, chloride ion, and iodine ion.

[0039] The salt of cationized hyaluronic acid is not particularly limited, but examples thereof include alkali metal salts such as sodium salt and potassium salt; alkaline earth metal salts such as calcium salt; zinc salt, magnesium salt, ammonium salt, and the like.

[0040] The quaternary ammonium group-containing group substitutes the hydrogen atom of the carboxyl group contained in the raw material hyaluronic acid and / or its salt. The cationization degree of the cationized hyaluronic acid and / or its salt can be, for example, 0.15 to 0.6. The cationization degree refers to the substitution degree of the quaternary ammonium group-containing group, and specifically refers to the number (substitution number) of the quaternary ammonium group-containing group per disaccharide (glucuronic acid and N-acetylglucosamine) which is the structural unit of hyaluronic acid and / or its salt.

[0041] The average molecular weight of cationized hyaluronic acid and / or its salt is, for example, 8 million to 2.5 million, and preferably 50,000 to 1.5 million. The average molecular weight of cationized hyaluronic acid and / or its salt is a value measured by the following method.

[0042] Accurately weigh out approximately 0.05g of cationized hyaluronic acid and / or its salt (this product), dissolve it in 0.2mol / L sodium chloride solution to make exactly 100mL, and accurately weigh out 8mL, 12mL, and 16mL of this solution, and add 0.2mol / L sodium chloride solution to make exactly 20mL to make the sample solution. Measure the specific viscosity of this sample solution and 0.2mol / L sodium chloride solution at 30.0±0.1℃ using the viscosity measurement method (Method 1, Capillary Viscometer Method) of the General Test Method of the Japanese Pharmacopoeia (17th Edition) (Formula (A)), and calculate the reduced viscosity at each concentration (Formula (B)). Draw a graph with the reduced viscosity on the vertical axis and the concentration (g / 100mL) of this product converted to dry matter on the horizontal axis, and calculate the limiting viscosity from the intersection of the straight line connecting each point and the vertical axis. The intrinsic viscosity thus determined is substituted into Laurent's formula (formula (C)) to calculate the average molecular weight (TC Laurent, M. Ryan, A. Pietruszkiewicz,: BBA, 42, 476-485 (1960)).

[0043]

number

[0044] These cationized hyaluronic acids and / or salts thereof may be used alone or in combination of two or more.

[0045] Preferred examples of the component (C) used in the present invention include hydroxypropyltrimonium hyaluronate. Hydroxypropyltrimonium hyaluronate used in the present invention is, for example, "Hyaroberu" manufactured by Kewpie Corporation. (R) " are cited.

[0046] The content of the (C) component in the skin cleansing composition of the present invention is not particularly limited, but may be, for example, 0.1 to 3% by weight. The upper limit of the above range of the (C) component is preferably 2% by weight or less, more preferably 0.5% by weight or less, from the viewpoint of obtaining better suppression of stickiness. The lower limit of the above range of the (C) component is preferably 0.3% by weight or more, from the viewpoint of obtaining better moisturizing feeling and / or soft feeling.

[0047] In the skin cleansing composition of the present invention, the ratio of the (A) component to the (C) component is not particularly limited and is determined by the above-mentioned respective contents. From the viewpoint of obtaining a better moisturizing feeling and / or soft feeling and anti-stickiness property, for example, the amount of the (C) component per 1 part by weight of the (A) component is 0.01 to 0.5 parts by weight, preferably 0.04 to 0.3 parts by weight, and more preferably 0.07 to 0.1 parts by weight.

[0048] (D) Lecithin and / or Lysolecithin The skin cleansing composition of the present invention may contain lecithin and / or lysolecithin as component (D). Component (D) can be present together with components (A), (B) and (C) for the purpose of improving moisturizing feeling and / or softening feeling.

[0049] In the present invention, of lecithin and lysolecithin, lecithin may be used as component (D), or lysolecithin may be used, or a combination of lecithin and lysolecithin may be used.

[0050] Lecithin is a mixture of phospholipids such as phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, and phosphatidylinositol, and other components such as triglycerides, fatty acids, and carbohydrates from vegetable oils, and is a well-known component in pharmaceuticals, quasi-drugs, and cosmetics.

[0051] The lecithin used in the present invention may be natural lecithin derived from animals or plants (e.g., soybean lecithin, egg yolk lecithin, etc.), a chemically treated product of natural lecithin, or a purified product of natural lecithin. Examples of chemically treated natural lecithin include hydrogenated lecithin obtained by hydrogenation (e.g., fully hydrogenated lecithin and partially hydrogenated lecithin), and hydroxylated lecithin obtained by hydroxylation. Examples of purified natural lecithin include lecithin with an increased phosphatidylcholine content using a solvent such as acetone.

[0052] The lysolecithin used in the present invention includes the lyso form of the above-mentioned lecithin (natural lecithin, chemically treated natural lecithin, and purified natural lecithin). Lysolecithin has a structure in which the fatty acid at the 2-position of phosphatidylcholine has been removed by hydrolysis (dissolution) of lecithin with an enzyme such as phospholipase A2.

[0053] These lecithins and / or lysolecithins may be used alone or in combination of two or more.

[0054] The content of the (D) component in the skin cleansing composition of the present invention is not particularly limited, but from the viewpoint of obtaining a better moisturizing feeling and / or soft feeling, it is, for example, 0.1 to 3% by weight, and preferably 0.2 to 1% by weight.

[0055] In the skin cleansing composition of the present invention, the ratio of the component (A) to the component (D) is not particularly limited and is determined by the above-mentioned respective contents. From the viewpoint of obtaining a better moisturizing feeling and / or soft feeling, the ratio of the component (D) to 1 part by weight of the component (A) is, for example, 0.01 to 0.5 parts by weight, preferably 0.04 to 0.3 parts by weight.

[0056] Other Ingredients In addition to the above-mentioned components, the skin cleansing composition of the present invention may contain other bases and additives required for formulation, etc., within the scope of not impairing the effects of the present invention. Such additives are not particularly limited as long as they are pharma- ceutically acceptable, and examples of such additives include aqueous bases such as water, lower alcohols having 1 to 5 carbon atoms (ethanol, isopropanol, etc.), and polyhydric alcohols (ethylene glycol, 1,3-butylene glycol (1,3-BG), propylene glycol, isoprene glycol, diethylene glycol, dipropylene glycol, polypropylene glycol, glycerin, etc.); surfactants (other than the above component (A)) such as cationic surfactants, anionic surfactants, and amphoteric surfactants; preservatives (methylparaben, propylparaben, benzoic acid, sodium benzoate, sorbic acid, etc.), flavoring agents (citral, 1,8-thioneol, citronellal, farnesol, etc.), colorants (tar dyes (Brown No. 201, Blue No. 201, Yellow No. 4, Yellow No. 403, etc.), cacao dyes, chlorophyll, aluminum oxide, etc.), thickeners (carboxyvinyl polysaccharides, etc.), and the like. Examples of additives include glyceryl acrylate, hypromellose, polyvinylpyrrolidone, sodium alginate, ethyl cellulose, 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, macrogol, etc.), stabilizers (dibutylhydroxytoluene, butylhydroxyanisole, 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, solubilizers, preservatives, etc. These substrates and additives may be used alone or in combination of two or more. The contents of these base materials and additives can be appropriately set depending on the formulation form, etc.

[0057] In addition to the above-mentioned components, the skin cleansing composition of the present invention may contain other pharmacological ingredients as necessary within the scope of not impairing the effects of the present invention. Examples of such pharmacological ingredients include vitamins (vitamin A, vitamin B1, vitamin B2, vitamin B5, vitamin B6, vitamin B12, vitamin C, vitamin D, vitamin K, niacin, folic acid, biotin, lycopene, etc.), antihistamines (diphenhydramine, diphenhydramine hydrochloride, etc.), local anesthetics (procaine, tetracaine, bupipacaine, mepipacaine, chloroprocaine, proparacaine, meprylcaine or salts thereof, orthocaine, oxethazaine, oxalate, etc.), and the like. Examples of the pharmacological ingredient include polyethylhexyl ether, scolymus extract, percaminpase, tesitdesitin, etc.), anti-inflammatory agents (indomethacin, felbinac, diclofenac sodium, loxoprofen sodium, etc.), skin protectants (collodion, castor oil, etc.), blood circulation promoting ingredients (nonyl acid vanillylamide, nicotinic acid benzyl ester, capsaicin, capsicum extract, etc.), cooling agents (menthol, camphor, borneol, peppermint water, peppermint oil, 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.

[0058] form The form of the skin cleanser composition of the present invention is not particularly limited, and examples thereof include liquid, cream, gel, etc., and is preferably a liquid at room temperature. The skin cleanser composition of the present invention may also be in a form in which a sheet substrate such as cotton or nonwoven fabric is impregnated with the liquid skin cleanser composition.

[0059] container The container for storing the skin cleanser composition of the present invention is not particularly limited and may be appropriately selected depending on the form, use, etc., and examples thereof include a spray type container, a pour-down or drop-down type container (particularly a cleaning bottle), a pump type container, a tube type container, a packaging bag, a box-shaped container, etc. In particular, when the skin cleanser composition of the present invention is in a liquid form, examples of the container include a spray type container, a pour-down or drop-down type container (particularly a cleaning bottle), a pump type container, and a pump former container. In addition, when the skin cleanser composition of the present invention is in a form impregnated into a sheet substrate, examples of the container include a packaging bag and a box-shaped container.

[0060] In the present invention, among these containers, spray containers are particularly preferred from the viewpoints of ease of application to the skin and avoidance of physical friction caused by hands during application. Examples of spray containers include pump spray containers, which are non-aerosol spray containers, and aerosol spray containers. The aperture (inner diameter of the nozzle) of the spray container is, for example, 0.01 to 3 mmφ, preferably 0.1 to 1 mmφ. When the spray container is a pump spray container, the amount sprayed per push is, for example, 0.05 to 1.2 g, preferably 0.1 to 0.3 g.

[0061] Purpose The skin cleansing composition of the present invention is not particularly limited as long as it is applied to the skin for cleansing. Since the skin cleansing composition of the present invention is excellent in suppressing the stickiness of the skin after washing, and in moisturizing and softening properties, it is suitable for use in a form of application in which the skin is applied and then washed off, more specifically, as a skin cleansing agent used to remove body fluids such as oils and fats, sweat, and dirt from the skin, and as a cleansing agent used to remove makeup, and is particularly suitable for use as the above-mentioned skin cleansing agent.

[0062] The skin cleansing composition of the present invention may be diluted with water and lathered before application to the skin, or may be applied directly to the skin without diluting with water or lathering. When the skin cleansing composition is applied directly to the skin without diluting with water or lathering, the amount of use per application varies depending on the concentration of the surfactant and the degree of dirt, but for example, when used for face washing, it is 0.5 to 3 g, preferably 1 to 2 g.

[0063] As a specific mode of use, when the skin cleanser composition of the present invention is contained in a pour-out or drop-type container (particularly a cleaning bottle), a pump-type container, a tube-type container, etc., the skin cleanser composition can be taken from the container once and applied to the area to be cleaned by hand. When the skin cleanser composition of the present invention is impregnated into a sheet substrate, the skin cleanser composition can be applied by taking the sheet substrate in the hand and applying it to the area to be cleaned.

[0064] As a particularly preferred mode of use, the skin cleanser composition contained in a spray container, pour-on or drop-on container (particularly a cleaning bottle), preferably a spray container, can be applied directly to the area to be cleaned without taking it in the hands. When the skin cleanser composition is applied directly to the area to be cleaned, cleaning is possible only by using the mechanical force of the liquid flow without applying any physical friction such as friction between the skin of the area to be cleaned and the hands, or between the skin of the area to be cleaned and air bubbles. Since the skin cleanser composition of the present invention is formulated to be low-irritating and has excellent cleaning power, cleaning using the mechanical force of the liquid flow without applying physical friction in this way significantly reduces the burden on the skin during cleaning, making it possible to perform a very gentle cleaning method. Note that the skin cleanser composition of the present invention is particularly suitable for a cleaning method that does not apply physical friction to the skin as described above, but does not exclude a method of use in which the skin cleanser composition is applied to the area to be cleaned and then scrubbed with hands or the like.

[0065] The area to be cleaned with the skin cleanser composition of the present invention is not particularly limited since any body area can be cleaned, and examples thereof include hands, hair, scalp, body, face, etc. In particular, since the skin cleanser composition of the present invention is excellent in suppressing stickiness on the skin after washing, and in providing a moisturizing and softening feeling, it is suitable for use on the face, which is particularly susceptible to these sensations when used.

[0066] After washing, the skin cleanser composition can be washed off with water. When washing off with water, it may be carried out in the same manner as normal face washing, but from the viewpoint of reducing the burden on the skin, it is preferable to wash off the skin by using the mechanical force of a water flow without applying friction with the hands.

[0067] Manufacturing method The skin cleansing composition of the present invention is produced by mixing the aforementioned components (A) to (C), the component (D) which is blended as necessary, and other components which are blended as necessary, and preparing the mixture into a predetermined form. EXAMPLES

[0068] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these.

[0069] Skin cleansing compositions were prepared having the compositions shown in Tables 1 to 4. Details of each component shown in Tables 1 to 4 are as follows. The prepared skin cleansing compositions were subjected to the following evaluation tests.

[0070] (A) Amino acid surfactant Sodium methyl cocoyl taurate (NOF Corp. "Diapon K-SF (product name)") Cocamidopropyl betaine ("Softazoline CPB (product name)" manufactured by Kawaken Fine Chemicals Co., Ltd.) TEA-Cocoyl Glutamate (Amisoft CT-12S (product name) manufactured by Ajinomoto Co., Inc.) Sodium methyl cocoyl taurate (manufactured by Nikko Chemicals Co., Ltd., "NIKKOL CMT-30 (product name)") Sodium N-lauroyl-N-methyl-β-alanine (NOF Corporation, "Softilt AS-L" (product name)) Sodium N-lauroyl aspartate ("Aminoformer FLDS-L (product name)" manufactured by Asahi Kasei Fine Chemical Corporation) Sodium cocoyl methylalanine ("Alanon ACE" manufactured by Kawaken Fine Chemicals Co., Ltd.) (a) Other surfactants Sodium lauryl sulfate ("EMAL 0" (product name) manufactured by Kao Corporation) Sodium laurate (NOF Corp. "NonSal LN-1" (product name) Cocamide DEA ("Amizol CDE-G (product name)" manufactured by Kawaken Fine Chemical Co., Ltd.) Polyoxyethylene lauryl ether acetate (Kao Corporation "Kao Akipo RLM-45 (product name)") Polyoxyethylene sorbitan monostearate (Kao Corporation, Rheodor TW-S120V (product name)) Glycerin mono-2-ethylhexyl ether solution (SEPPIC "sensiva SC 50 JP (product name)") PEG-60 hydrogenated castor oil (polyoxyethylene hydrogenated castor oil; "NIKKOL HCO-60 (product name)" manufactured by Nikko Chemicals Co., Ltd.) (B) Amphiphilic ester Cyclohexane-1,4-dicarboxylate bisethoxydiglycol ("Neosolue-Aqulio" (product name) manufactured by Nippon Fine Chemical Co., Ltd.) Bisethoxydiglycol succinate ("High Aquostar DCS (product name)" manufactured by Kokyu Alcohol Kogyo Co., Ltd.) (C) Cationized hyaluronic acid and / or its salt Hydroxypropyltrimonium hyaluronate (Hyaloveil, manufactured by Kewpie Corporation) (c) Other cationic polymers Dimethyldiallylammonium chloride-acrylamide copolymer ("Merquat 550" manufactured by Lubrizol Japan, Ltd.) ·O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethyl cellulose chloride ("SENSOMER10" (product name) manufactured by Lubrizol Japan Co., Ltd.) Guar hydroxypropyltrimonium chloride (DSP "Labor Gum CG-M" manufactured by Gokyo Food & Chemical Co., Ltd.) (D) Lecithin and / or Lysolecithin Lysolecithin ("Lysolecithin Kyowa" manufactured by Kyowa Hakko Bio Co., Ltd.) Lecithin ("Basis LP-20 (product name)" manufactured by Nisshin Oillio Group Co., Ltd.)

[0071] <Evaluation of stickiness suppression> The prepared skin cleansing compositions were evaluated for sticky feeling after washing by 10 panelists specializing in cosmetic evaluation. Specifically, each skin cleansing composition was placed in a pump-type spray container ("Z-155-C110 (product name)" (amount sprayed per push is 0.15 g) manufactured by Takemoto Container Co., Ltd.) and 1.5 g was applied by spraying directly onto the face. The composition was left for about 5 seconds and then rinsed off with water. After rinsing, without wiping off the water, the sticky feeling on the skin was evaluated based on the following index. 4 points: No stickiness at all 3 points: Not very sticky 2 points: Slightly sticky 1 point: Sticky

[0072] The scores obtained by the 10 panelists were totaled, and the degree of stickiness suppression was evaluated according to the following classification. The results are shown in Tables 1 to 4. ◎: 37 points or more ○: 33 points or more and less than 37 points △: 30 points or more and less than 33 points ×: Less than 30 points

[0073] <Evaluation of moisturizing sensation (moisturizing sensation)> The prepared skin cleansing compositions were evaluated for moist feeling (moisturizing feeling) after washing by 10 panelists specializing in cosmetic evaluation. Specifically, each skin cleansing composition was placed in a pump-type spray container ("Z-155-C110 (trade name)" (amount sprayed per push is 0.15 g) manufactured by Takemoto Container Co., Ltd.) and 1.5 g was sprayed directly onto the face for application. The composition was left for about 5 seconds and then washed off with water. After holding the face with a towel to absorb the water, the moist feeling (moisturizing feeling) was evaluated by sensory evaluation and scored based on the following index. 4 points: Moisturizing (hydrating) 3 points: Slightly moisturizing 2 points: Not very moisturizing 1 point: No moisturizing feeling

[0074] The scores obtained by the 10 panelists were totaled, and the degree of moisturizing feeling (moisturizing feeling) was evaluated according to the following classification. The results are shown in Tables 1 to 4. ◎: 36 points or more ○: 29 points or more and less than 36 points △: 22 points or more and less than 29 points ×: 17 points or more and less than 22 points ××: Less than 17 points

[0075] <Fluffiness (softness) evaluation> The prepared skin cleansing compositions were evaluated for plumpness (softness) after washing by 10 panelists specializing in cosmetic evaluation. Specifically, each skin cleansing composition was placed in a pump-type spray container ("Z-155-C110 (product name)" (amount sprayed per push is 0.15 g) manufactured by Takemoto Container Co., Ltd.) and 1.5 g was sprayed directly onto the face for application. The composition was left for about 5 seconds and then washed off with water. After holding the face with a towel to absorb the water, the plumpness (softness) was evaluated by sensory evaluation and scored based on the following criteria. 4 points: Fluffy (soft) 3 points: Somewhat fluffy (soft) 2 points: Not very fluffy (soft) 1 point: No sense of plumpness (flexibility)

[0076] The scores obtained by the 10 panelists were totaled, and the degree of stickiness suppression was evaluated according to the following classification. The results are shown in Tables 1 to 4. ◎: 36 points or more ○: 29 points or more and less than 36 points △: 22 points or more and less than 29 points ×: 17 points or more and less than 22 points ××: Less than 17 points

[0077] [Table 1]

[0078] [Table 2]

[0079] [Table 3]

[0080] [Table 4]

[0081] As shown in Tables 1 to 4, the skin cleansing compositions (Examples 1 to 16) containing (A) an amino acid surfactant, (B) an amphiphilic ester, and (C) cationized hyaluronic acid and / or a salt thereof were excellent in terms of suppressing stickiness, moisturizing, and softening after washing. In contrast, for example, skin cleansing compositions (Comparative Examples 5, 6, 17 to 22) that did not contain the (A) component but contained the (a) component (another surfactant) were inferior in moisturizing and softening. In addition, skin cleansing compositions (Comparative Examples 1, 2, 9 to 12, 15, 16) that did not contain the (B) component were particularly inferior in moisturizing. Furthermore, skin cleansing compositions (Comparative Examples 3, 4, 11 to 16) that did not contain the (C) component were inferior in moisturizing and softening, and skin cleansing compositions (Comparative Examples 7, 8, 23 to 25) that contained the (c) component (another cationic polymer) improved moisturizing and softening, but produced a sticky feeling.

Claims

1. A skin cleansing composition containing (A) an amino acid-derived surfactant, (B) bis-ethoxydiglycol cyclohexane-1,4-dicarboxylate and / or bis-ethoxydiglycol succinate, and (C) cationized hyaluronic acid and / or a salt thereof (excluding, however, those containing: [i] a cleansing cream containing yuzu fruit extract, fermented pear juice filtrate, fermented grape juice filtrate, and sodium stearoyl glutamate; [ii] an aqueous liquid cleansing composition containing glycerin and a sugar alcohol; [iii] a cosmetic containing a low-molecular-weight cationized hyaluronic acid and / or a salt thereof, which is substituted with a quaternary nitrogen-containing group represented by the following general formula <1> and has a molecular weight of 2,000 to 15,000; and [iv] hyaluronic acid and / or a salt thereof containing a glycerin skeleton-containing group represented by the following general formula <2>: 【Chemistry 1】 (In the formula, R 1 , R 2 each independently represents an alkyl group having 1 to 3 carbon atoms; R 3 represents an alkyl or alkenyl group having 1 to 24 carbon atoms; X - represents a monovalent anion.) 【Chemistry 2】 (In the formula, R 1 represents a linear or branched alkyl or alkenyl group.

2. 2. The skin cleansing composition according to claim 1, wherein the component (C) is hydroxypropyltrimonium hyaluronate.

3. The skin cleansing composition according to claim 1 or 2, further comprising (D) lecithin and / or lysolecithin.

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