Cosmetic composition

Abstract

A cosmetic composition comprising water, a thickening polysaccharide, and a calcium salt, wherein the thickening polysaccharide comprises deacyl gellan gum and sodium alginate, the mass ratio of the content of the deacyl gellan gum to the content of the sodium alginate (deacyl gellan gum / sodium alginate) is 0.45 to 3.50, and the content of calcium in the cosmetic composition is 1.00 to 3.00 parts by mass per 100 parts by mass of the total content of the deacyl gellan gum and the sodium alginate. The cosmetic composition of the present invention can be used in various cosmetics.

Description

[Technical field]

[0001] The present invention relates to a cosmetic composition and a cosmetic containing the same. [Background technology]

[0002] Carbomer and natural thickening polysaccharides are used as ingredients that impart a thickening effect to cosmetics. Carbomer has high viscosity and little stickiness even in small amounts, but is known to have no salt tolerance. On the other hand, natural thickening polysaccharides have excellent salt tolerance, but the amount added must be increased to achieve the desired viscosity, which causes stickiness. For example, Patent Document 1 proposes a highly thickening paste composition containing a combination of xanthan gum, guar gum, and locust bean gum as active ingredients, citing issues such as the fact that a thickening agent that combines xanthan gum and guar gum has the same thickening effect as xanthan gum alone and causes a sticky feeling. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] WO2013 / 108909 Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention relates to providing a novel cosmetic composition which has fluidity, an excellent thickening effect, and is less sticky. [Means for solving the problem]

[0005] The present invention relates to the following [1] to [3]. [1] A cosmetic composition comprising water, a thickening polysaccharide, and a calcium salt, wherein the thickening polysaccharide comprises desacyl gellan gum and sodium alginate, the mass ratio of the content of the desacyl gellan gum to the content of the sodium alginate (deacyl gellan gum / sodium alginate) is 0.45 to 3.50, and the content of calcium in the cosmetic composition is 1.00 to 3.00 parts by mass per 100 parts by mass of the total content of the desacyl gellan gum and the sodium alginate. [2] A cosmetic comprising the cosmetic composition described in [1]. [3] A method for producing a cosmetic, comprising the step of blending the cosmetic composition described in [1]. Effect of the Invention

[0006] According to the present invention, it is possible to provide a novel cosmetic composition that has flowability, an excellent thickening effect, and is not sticky. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0007] The present inventors have investigated the above-mentioned problems and unexpectedly found that a cosmetic composition containing specific amounts of water, deacylated gellan gum, sodium alginate, and calcium salt has excellent thickening effect while having fluidity and is less sticky without gelling. Generally, native gellan gum is used for thickening purposes, and deacylated gellan gum is used for gelling purposes, but the cosmetic composition of the present invention has a thickening effect without gelling even though it contains deacylated gellan gum. The mechanism behind this is unclear, but it is presumed that gelling agents with different gelling modes and rates inhibit each other from gelling, thereby preventing complete gelling.

[0008] The cosmetic composition of the present invention contains water, deacylated gellan gum, sodium alginate, and a calcium salt.

[0009] The content of water in the cosmetic composition of the present invention is preferably 60 to 99% by mass, more preferably 80 to 98% by mass, and even more preferably 90 to 96% by mass. Examples of water include deionized water.

[0010] The cosmetic composition of the present invention contains at least deacylated gellan gum and sodium alginate (Na alginate) as thickening polysaccharides. Gellan gum is a natural polymeric polysaccharide obtained by microbial fermentation using the bacterium Pseudomonas elodea, and deacylated gellan gum is gellan gum from which the acyl groups have been removed.

[0011] The mass ratio of the content of desacyl gellan gum to the content of sodium alginate (desacyl gellan gum / sodium alginate) is 0.45 to 3.50 from the viewpoint of fluidity. The lower limit is preferably 0.48 or more, more preferably 0.50 or more, and can be 0.60 or more, 0.70 or more, 0.80 or more, and the upper limit is preferably 3.00 or less, more preferably 2.50 or less, even more preferably 2.00 or less, and even more preferably 1.50 or less.

[0012] The cosmetic composition of the present invention may contain any thickening polysaccharide other than deacylated gellan gum and sodium alginate. Examples of thickening polysaccharide other than deacylated gellan gum and sodium alginate include guar gum, xanthan gum, tara gum, locust bean gum, gum arabic, tragacanth gum, karaya gum, tamarind gum, carrageenan, pectin, agar, quince seed, algae colloid (cassou extract), starch (rice, corn, potato, wheat), glycyrrhizic acid, dextran, succinoglucan, pullulan, collagen, casein, albumin, gelatin, etc. The total content of deacylated gellan gum and sodium alginate in the thickening polysaccharide is preferably 50 to 100% by mass from the viewpoint of thickening effect. The lower limit is preferably 80% by mass or more, more preferably 90% by mass or more, and even more preferably 95% by mass or more. The upper limit can be, for example, 95% by mass or less, 90% by mass or less.

[0013] The content of the thickening polysaccharide in the cosmetic composition of the present invention is preferably 0.1 to 3.0% by mass from the viewpoint of thickening effect. The lower limit is preferably 0.5% by mass or more, more preferably 0.7% by mass or more, and even more preferably 0.9% by mass or more, and the upper limit is preferably 2.5% by mass or less, more preferably 2.0% by mass or less, and even more preferably 1.5% by mass or less from the viewpoint of transparency, fluidity, and stickiness. The content of the thickening polysaccharide refers to the total amount of deacylated gellan gum, sodium alginate, and any thickening polysaccharide contained.

[0014] The content of deacylated gellan gum in the cosmetic composition of the present invention is not particularly limited, and can be, for example, 0.1 to 2.0 mass %, 0.2 to 1.5 mass %, 0.3 to 1.0 mass %, and the like.

[0015] The content of sodium alginate in the cosmetic composition of the present invention is not particularly limited, and can be, for example, 0.1 to 2.0 mass %, 0.2 to 1.5 mass %, 0.3 to 1.0 mass %, and the like.

[0016] Examples of calcium salts include calcium chloride dihydrate, calcium lactate pentahydrate, calcium chloride, calcium lactate, calcium sulfate, calcium acetate, calcium carbonate, calcium hydroxide, calcium sulfate, calcium sulfate hydrate, and calcium phosphate, and one or more of these may be contained. The content of the calcium salt in the cosmetic composition of the present invention is preferably 1.00 to 3.00 parts by mass, more preferably 1.00 to 2.85 parts by mass, and even more preferably 1.09 to 2.73 parts by mass, relative to 100 parts by mass of the total content of desacyl gellan gum and sodium alginate. The content of calcium in the cosmetic composition of the present invention is measured by chelometric titration.

[0017] The content of the calcium salt in the cosmetic composition of the present invention depends on the total content of deacylated gellan gum and sodium alginate and the type of calcium salt, but can be, for example, 0.01 to 0.20% by mass, 0.03 to 0.15% by mass, etc. In an embodiment containing two or more types of calcium salts, the content of the calcium salts refers to the total amount.

[0018] The cosmetic composition of the present invention may contain any salt other than the above, but is preferably free of these. The content of any salt in the cosmetic composition of the present invention is preferably 0.50% by mass or less, more preferably 0.10% by mass or less, and even more preferably 0.05% by mass or less. Examples of the optional salt include magnesium sulfate, sodium polyphosphate, potassium chloride, sodium hydroxide, potassium hydroxide, sodium citrate, sodium chloride, and the like, in addition to the various salts exemplified in the optional components below.

[0019] The cosmetic composition of the present invention may further contain components used in cosmetics, such as polyhydric alcohols, surfactants, oils, thickeners other than polysaccharide thickeners, UV absorbers, antioxidants, preservatives, fragrances, chelating agents, neutralizing agents, moisturizing agents, pH adjusters, etc.

[0020] Examples of polyhydric alcohols include glycerin, diglycerin, polyglycerin, ethylene glycol, diethylene glycol, triethylene glycol, tripropylene glycol, propylene glycol, 1,3-propanediol, dipropylene glycol, 1,3-butylene glycol, polyethylene glycol, sorbitol, xylitol, polyethylene glycol monoethyl ether, diethylene glycol monoethyl ether, ethylene glycol dimethyl ether, 1,2-pentanediol, hexylene glycol, 1,2-hexanediol, maltitol, and glucosyl trehalose, with glycerin, dipropylene glycol, and 1,3-butylene glycol being more preferred.

[0021] Examples of surfactants include anionic surfactants, cationic surfactants, nonionic surfactants, and amphoteric surfactants, and include alkyl sulfonates, alkyl sulfates, acylated amino acid salts, polyoxyethylene alkyl ether sulfates, alkylbenzene sulfonates, N-acyl-N-methyl taurine salts, α-olefin sulfonates, higher fatty acid ester sulfonates, alkyl ether acetates, polyoxyethylene alkyl ether acetates, alkyl phosphate ester salts, fatty acid soaps, alkyl dimethyl amino acetate betaine type, alkyl amidopropyl betaine type, and alkyl carboxymethyl hydroxyethyl imidazolinium. Examples of the fatty acids include betaine type, alkyl hydroxysulfobetaine type, alkyl dimethylamine oxide type, polyglycerin fatty acid ester, glycerin fatty acid ester, propylene glycol fatty acid ester, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitan tetraoleate, polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene glycol, polyoxyethylene polyoxypropylene alkyl ether, polyethylene glycol fatty acid ester, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, and alkyl glycoside.

[0022] Examples of oils include hydrocarbon oils, natural animal and vegetable oils and semi-synthetic oils, waxes, ester oils, silicone oils, higher alcohols, fatty acids, and essential oils.

[0023] Examples of thickeners other than thickening polysaccharides include polyvinyl alcohol (PVA), polyvinyl methyl ether (PVM), PVP (polyvinylpyrrolidone), sodium polyacrylate, carboxyvinyl polymer, dialkyldimethylammonium cellulose sulfate, magnesium aluminum silicate, bentonite, hectorite, magnesium aluminum silicate (veegum), laponite, silicic anhydride, taurate-based synthetic polymers, acrylate-based synthetic polymers, Tanakara clay, hectorite, bentonite, and the like.

[0024] Examples of ultraviolet absorbers include homomenthyl salicylate, ethylhexyl salicylate, homosalate, triethanolamine salicylate, 2-ethylhexyl paramethoxycinnamate, glyceryl di-paramethoxycinnamate mono-2-ethylhexanoate, methyl 2,5-diisopropylcinnamate, bis(trimethylsiloxy)silylisopentyl methyl trimethoxycinnamate, isopropyl paramethoxycinnamate-diisopropylcinnamate mixture, diethanolamine p-methoxyhydrocinnamate, octocrylene, 2-ethylhexyl dimethoxybenzylidene dioxoimidazolidinepropionate, 1-(3,4-dimethoxyphenyl)-4,4-dimethyl-1,3-pentanedione, cinoxate, methyl-O-aminobenzoate, 3-(4-methylbenzylidene)camphor, octyl triazone, diethylaminohydroxybenzoylhexylbenzoate, and bisethylhexyloxyphenol methoxyphenyl triazine.

[0025] Antioxidants include tocopherols, dibutylhydroxytoluene (BHT), butylhydroxyanisole, pyrosulfite, gallic acid esters, phosphoric acid, citric acid, ascorbic acid, maleic acid, malonic acid, succinic acid, fumaric acid, cephalin, hexametaphosphate, phytic acid, and ethylenediaminetetraacetic acid.

[0026] Preservatives include parabens and phenoxyethanol.

[0027] Fragrances include geraniol, citral, citronellol, damask rose flower extract, farnesol, phenylethyl alcohol, phenethyl alcohol, linalool, and limonene.

[0028] Examples of chelating agents include 1-hydroxyethane-1,1-diphosphonic acid, 1-hydroxyethane-1,1-diphosphonic acid tetrasodium salt, disodium edetate, trisodium edetate, tetrasodium edetate, sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid, phosphoric acid, citric acid, ascorbic acid, succinic acid, edetic acid, and trisodium ethylenediaminehydroxyethyltriacetate.

[0029] Examples of the neutralizing agent include sodium hydroxide, potassium hydroxide, calcium hydroxide, magnesium hydroxide, sodium carbonate, monoethanolamine, diethanolamine, triethanolamine, isopropanolamine, diisopropanolamine, triisopropanolamine, 2-amino-2-methyl-1-propanol, and 2-amino-2-methyl-1,3-propanediol.

[0030] Moisturizing agents include chondroitin sulfate, hyaluronic acid, mucoitin sulfate, caronic acid, atelocollagen, cholesteryl-1,2-hydroxystearate, sodium lactate, dl-pyrrolidone carboxylate, short-chain soluble collagen, diglycerin (EO)PO adduct, Rosa rugosa extract, Achillea millefolium extract, and Melilot extract.

[0031] Examples of pH adjusters include acidic substances such as citric acid, succinic acid, phosphoric acid, glycolic acid, tartaric acid, lactic acid, aspartic acid, glutamic acid, phosphoric acid, and carbonic acid, as well as their sodium or potassium salts, sodium hydroxide, potassium hydroxide, lysine, and arginine.

[0032] The transmittance of the cosmetic composition of the present invention is preferably 70 to 100%. The lower limit is preferably 75% or more, more preferably 80% or more, even more preferably 85% or more, and even more preferably 90% or more, and the upper limit can be 95% or less, 90% or less, etc. The transmittance is measured by the method described in the Examples below.

[0033] The fluidity of the cosmetic composition of the present invention is preferably 0.45 to 1.00 in terms of the cohesiveness value measured by texture analysis using a creep meter. The lower limit is preferably 0.50 or more, more preferably 0.60 or more, even more preferably 0.70 or more, and even more preferably 0.80 or more, and the upper limit can be 1.00 or less, 0.95 or less, 0.90 or less, etc. The fluidity is measured by the method described in the Examples below.

[0034] The viscosity of the cosmetic composition of the present invention is preferably 8000 to 100000 mPa·s when measured at 25°C at 12 rpm with a Brookfield viscometer. The lower limit is preferably 9000 mPa·s or more, more preferably 10000 mPa·s or more, even more preferably 11000 mPa·s or more, even more preferably 12000 mPa·s or more, even more preferably 13000 mPa·s or more, and even more preferably 14000 mPa·s or more, and the upper limit can be 80000 mPa·s or less, 60000 mPa·s or less, etc. The viscosity is measured by the method described in the Examples below.

[0035] The cosmetic composition of the present invention can be prepared by mixing the above-mentioned water, deacylated gellan gum, sodium alginate, and calcium salt in specific amounts by a known method.

[0036] The cosmetic composition of the present invention has excellent thickening effect while having fluidity, and is not sticky, and therefore can be suitably used as cosmetics such as lotion, milky lotion, gel, beauty essence, cream, eye care cream, massage cream, body milk, body lotion, hand milk, hand lotion, hand cream, body cream, base lotion, base cream, sunscreen cream, face wash, shampoo, body shampoo, hand foam, cleansing liquid, cleansing milk, cleansing gel, cleansing lotion, etc., or as a raw material for these cosmetics. That is, the present invention also provides a cosmetic containing the cosmetic composition of the present invention. The present invention also provides a method for producing a cosmetic having a step of blending the cosmetic composition of the present invention. Here, the step of blending the cosmetic composition of the present invention includes an embodiment in which each component is individually blended, in addition to an embodiment in which a cosmetic composition prepared in advance is blended. EXAMPLES

[0037] EXAMPLES The present invention will be specifically described below with reference to examples and comparative examples, but the present invention is not limited to these.

[0038] Preparation of cosmetic compositions Examples 1 to 21, Comparative Examples 1 to 16 A cosmetic composition was prepared by mixing the raw materials shown in Tables 1 to 4. More specifically, a thickening polysaccharide, BG (butylene glycol), a preservative (methylparaben), and purified water were mixed and heated at 90°C for 5 minutes. Salts such as calcium salts were dispersed and dissolved, and the moisture content was corrected, and then the mixture was cooled at 25°C for 1 hour or more to obtain a cosmetic composition.

[0039] Details of the raw materials listed in Tables 1 to 4 are shown below. Deacylated gellan gum 1: CP Kelco Deacylated Gellan Gum 2: MP Gokyo Food & Chemical Co., Ltd. Deacylated gellan gum 3: Zhejian DSM Zhongken Biotechnology Co., Ltd. Native Gellan Gum: CP Kelco Sodium alginate: manufactured by Kimika Xanthan gum: manufactured by Danisco Tamarind gum: MP Gokyo Food & Chemical Co., Ltd. Agar: Ina Food Industry Co., Ltd. κ-carrageenan: CP Kelco Calcium chloride dihydrate: Fujifilm Wako Pure Chemical Industries, Ltd. Calcium lactate pentahydrate: Musashino Chemical Laboratory Magnesium sulfate: Fujifilm Wako Pure Chemical Industries, Ltd. Sodium polyphosphate: manufactured by Shimonoseki Mitsui Chemicals, Inc. Potassium chloride: manufactured by Tomita Pharmaceutical Co., Ltd.

[0040] <Viscosity> The cosmetic compositions of each Example and Comparative Example were adjusted to a temperature of 25° C., and the samples were placed in 200 ml tall beakers and measured at 12 rpm using a B-type viscometer (Toki Sangyo TVB-10M) to measure the viscosity value after 30 seconds. The results are shown in Tables 1 to 4.

[0041] <Liquidity> Before cooling, the cosmetic compositions of each Example and Comparative Example were filled into petri dishes (diameter 13.5 mm, height 11 mm) (n=2), cooled in cold water for at least 2 hours, and then left at room temperature for 1 hour. The petri dishes were fixed to the center of the measurement platform of a creep meter (RHEONER II series (YAMADEN)) with double-sided tape, and the cohesiveness value was measured by texture analysis. The results are shown in Tables 1 to 4. (Measurement conditions) Storage parameters: storage pitch: 0.05s, measurement distortion rate: 66.67%, measurement speed: 10mm / s, sample thickness: automatic measurement, contact surface diameter: 15mm, amplifier magnification: 1x Plunger: 15mm diameter, 25mm height plastic plunger

[0042] <Sticky / slimy> 0.3 g of the cosmetic composition of each Example and Comparative Example was applied to the inside of the forearm, rubbed with the index finger, and evaluated according to the following evaluation criteria. The evaluation was performed by 10 trained panelists, and the average values ​​are shown in Tables 1 to 4. A rating of 2 or more was determined to indicate little stickiness or sliminess. (Evaluation criteria for stickiness or sliminess) 3: Stickiness or sliminess of 0.16% carbomer solution was rated as 3 2: The stickiness or sliminess between the carbomer aqueous solution and the xanthan gum aqueous solution was rated 2. 1: Stickiness or sliminess of 2.5% xanthan gum solution is set as 1

[0043] [Table 1]

[0044] [Table 2]

[0045] [Table 3]

[0046] [Table 4]

[0047] As shown in Tables 1 to 4, the cosmetic compositions of the respective Examples all had excellent thickening effect while having fluidity, and were not sticky. It was also confirmed that they were not sticky at all.

[0048] <Transparency> The cosmetic compositions of Examples 1 to 10, 14, 16, 20, and 21 were diluted 2-fold with deionized water, and the samples were placed in quartz cells (plastic), and the absorbance at a wavelength of 660 nm was measured using a spectrophotometer (Shimadzu UV-1800) and converted into transmittance. The results are shown in Table 5.

[0049] [Table 5]

[0050] As shown in Table 5, each cosmetic composition is also excellent in transparency.

[0051] (Prescription example) Below are examples of the formulations of the cosmetic of the present invention. The present invention is not limited to these formulations. All blend amounts are expressed as mass % based on the total amount of the product.

[0052] Formulation example 1: Cleansing liquid (suspension type) The following composition was used to make a total of 100 g. [Table 6]

[0053] Formulation example 2 Cleansing gel (natural type) The following composition was used to make a total of 100 g. [Table 7]

[0054] Formulation example 3: Skin care cream The following composition was used to make a total of 100 g. [Table 8]

[0055] The cosmetics of Formulation Examples 1 to 3 all had excellent thickening effect while possessing fluidity, and were not sticky. [Industrial Applicability]

[0056] The cosmetic composition of the present invention can be used in various cosmetic products.

Claims

1. A cosmetic composition comprising water, a thickening polysaccharide, and a calcium salt, wherein the thickening polysaccharide comprises deacyl gellan gum and sodium alginate, the mass ratio of the content of the deacyl gellan gum to the content of the sodium alginate (deacyl gellan gum / sodium alginate) is 0.45 to 3.50, and the content of calcium in the cosmetic composition is 1.00 to 3.00 parts by mass per 100 parts by mass of the total content of the deacyl gellan gum and the sodium alginate.

2. The cosmetic composition according to claim 1, wherein the total content of the deacylated gellan gum and the sodium alginate in the thickening polysaccharide is 50 to 100% by mass.

3. 2. The cosmetic composition according to claim 1, wherein the thickening polysaccharide further comprises one or more selected from the group consisting of guar gum, xanthan gum, tara gum, locust bean gum, gum arabic, tragacanth gum, karaya gum, tamarind gum, carrageenan, pectin, agar, quince seed, algae colloid (cassou extract), starch (rice, corn, potato, wheat), glycyrrhizic acid, dextran, succinoglucan, pullulan, collagen, casein, albumin, and gelatin.

4. 2. The cosmetic composition according to claim 1, wherein the calcium salt comprises at least one selected from the group consisting of calcium chloride dihydrate, calcium lactate pentahydrate, calcium chloride, calcium lactate, calcium sulfate, calcium acetate, calcium carbonate, calcium hydroxide, calcium sulfate, calcium sulfate hydrate, and calcium phosphate.

5. 2. The cosmetic composition according to claim 1, further comprising one or more selected from the group consisting of polyhydric alcohols, surfactants, oils, thickeners other than thickening polysaccharides, ultraviolet absorbers, antioxidants, preservatives, fragrances, chelating agents, neutralizing agents, moisturizing agents, and pH adjusters.

6. A cosmetic comprising the cosmetic composition according to any one of claims 1 to 5.

7. A method for producing a cosmetic, comprising a step of blending the cosmetic composition according to any one of claims 1 to 5.