Cosmetics

Abstract

[Problem] To provide a cosmetic that can achieve both a smooth feeling and a refreshing feeling of the skin after washing. [Solution] Use a cosmetic containing a specific amount of dextrin, a polysaccharide thickener, and a specific polyacrylamide compound.

Description

Technical Field

[0001] The present invention relates to a cosmetic containing a specific amount of dextrin, a polysaccharide thickener, and a specific polyacrylamide compound. Background Art

[0002] When cleansing the skin with a cosmetic such as a cleansing agent containing a large amount of a thickener, the spreadability becomes heavy, and it can adhere to rough areas such as comedones and pores to achieve a smooth feeling of the skin after cleansing. However, when a thickener is contained in the cosmetic, it may be washed away or cause problems with dryness, and a sticky feeling may be felt after cleansing, and the refreshing feeling after cleansing may sometimes be insufficient. On the other hand, if a thickener is not contained in the cosmetic in order to ensure the refreshing feeling after cleansing, the smooth feeling of the skin after cleansing decreases.

[0003] In Patent Document 1, a skin cleansing composition containing a polysaccharide powder is disclosed, and it is disclosed that the skin cleansing composition has low irritation, high safety, and excellent comedone-removing function, but nothing about improving the refreshing feeling such as stickiness by containing a thickener is disclosed.

[0004] In addition, in Patent Document 2, a skin external composition containing a whitening ingredient, a thickener, and a compound having a hydantoin skeleton is also disclosed, and it is disclosed that by using this skin external composition, coloring of the whitening ingredient caused by oxygen, light, and / or heat can be suppressed, but nothing about improving the refreshing feeling such as stickiness by containing a thickener is disclosed.

[0005] Therefore, in cosmetics such as cleansing agents, a cosmetic that can balance the smooth feeling of the skin after cleansing and the refreshing feeling after cleansing is desired.

[0006] Prior Art Documents

[0007] Patent Documents

[0008] Patent Document 1: Japanese Patent Application Laid-Open No. 2003-342162

[0009] Patent Document 2: Japanese Patent Application Laid-Open No. 2016-204307 Summary of the Invention

[0010] Problems to be Solved by the Invention

[0011] The inventors of the present invention unexpectedly found that by using a cosmetic containing a specific amount of dextrin, a polysaccharide thickener, and a specific polyacrylamide compound, a cosmetic that can balance the smooth feeling of the skin after cleansing and the refreshing feeling after cleansing can be obtained. The present invention is made based on this finding.

[0012] Therefore, the present invention discloses a cosmetic containing a specific amount of dextrin, a polysaccharide thickener, and a specific polyacrylamide compound.

[0013] According to the present invention, the following solutions are provided.

[0014] (1) A cosmetic, comprising:

[0015] (A) dextrin,

[0016] (B) a polysaccharide thickener, and

[0017] (C) a polyacrylamide compound, which is composed of a homopolymer or copolymer containing one or more selected from 2-acrylamido-2-methylpropanesulfonic acid, acrylic acid and their derivatives as structural units, or a crosslinked polymer of these polymers,

[0018] (A) The content of dextrin is 0.1 to 18% by mass based on the total amount of the cosmetic, and (B) the content of the polysaccharide thickener is 0.01 to 0.9% by mass based on the total amount of the cosmetic.

[0019] (2) The cosmetic according to (1), wherein the content of (A) dextrin is 2 to 15% by mass based on the total amount of the cosmetic.

[0020] (3) The cosmetic according to (1) or (2), wherein the content of (B) the polysaccharide thickener is 0.15 to 0.8% by mass based on the total amount of the cosmetic.

[0021] (4) The cosmetic according to any one of (1) to (3), wherein (B) the polysaccharide thickener is xanthan gum or succinoglucan.

[0022] (5) The cosmetic according to any one of (1) to (4), wherein (C) the polyacrylamide compound is a copolymer of 2-acrylamido-2-methylpropanesulfonic acid or its salt / vinylpyrrolidone, or a copolymer of 2-acrylamido-2-methylpropanesulfonic acid or its salt / dimethylacrylamide.

[0023] (6) The cosmetic according to any one of (1) to (5), wherein (C) the polyacrylamide compound is an acryloyldimethyltaurine ammonium / VP copolymer or a dimethylacrylamide / sodium acryloyldimethyltaurate crosslinked polymer.

[0024] (7) The cosmetic according to any one of (1) to (6), further comprising an alkylene oxide derivative.

[0025] (8) The cosmetic according to (7), wherein the alkylene oxide derivative is a compound represented by the following formula (I):

[0026] R 1 O-[(AO) p (EO) q -R2 (I)

[0027] (In the formula,

[0028] AO is an oxyalkylene group having 3 to 4 carbon atoms, EO is an oxyethylene group, p and q are the average molar addition numbers of an oxyalkylene group having 3 to 4 carbon atoms and an oxyethylene group, respectively, 1 ≤ p ≤ 70, 1 ≤ q ≤ 70, and the ratio of the oxyethylene group to the total of the oxyalkylene group and the oxyethylene group is 20 to 80% by mass,

[0029] The oxyalkylene group and the oxyethylene group can be added in a block form or in a random form,

[0030] R 1 and R 2 are optionally the same or different hydrocarbon groups having 1 to 4 carbon atoms or hydrogen atoms, and the ratio of the number of hydrogen atoms of R 1 and R 2 to the number of hydrocarbon groups is 0.15 or less).

[0031] (9) The cosmetic according to (8), wherein in the alkylene oxide derivative, the oxyalkylene group and the oxyethylene group are added in a random form.

[0032] (10) The cosmetic according to any one of (1) to (9), further comprising a surfactant.

[0033] (11) The cosmetic according to any one of (1) to (10), further comprising a humectant.

[0034] (12) The cosmetic according to any one of (1) to (11), further comprising an abrasive.

[0035] (13) The cosmetic according to any one of (1) to (12) is a cleansing agent.

[0036] (14) The cosmetic according to any one of (1) to (13) is a gel-like cleansing agent.

[0037] (15) The cosmetic according to any one of (1) to (14) is a skin cleansing agent.

[0038] By using the cosmetic of the present invention, it is advantageous in terms of both the smooth feeling of the skin after cleansing and the refreshing feeling after cleansing. Detailed Description of the Invention

[0039] The cosmetic of the present invention contains:

[0040] (A) Dextrin,

[0041] (B) A polysaccharide thickener, and

[0042] (C) A polyacrylamide compound composed of a homopolymer or copolymer containing one or more selected from 2-acrylamide-2-methylpropanesulfonic acid, acrylic acid, and their derivatives as structural units, or a crosslinked polymer of these polymers, wherein the blending amount of (A) dextrin is 0.1 to 18% by mass based on the total amount of the cosmetic, and the blending amount of (B) a polysaccharide thickener is 0.01 to 0.9% by mass based on the total amount of the cosmetic.

[0043] The dextrin contained in the cosmetic of the present invention is not particularly limited as long as it is an intermediate product produced by hydrolyzing starch with an acid, heat, or an enzyme, and there are various types depending on the hydrolysis method. For example, soluble starch, thinly boiled starch, starch dextrin, white dextrin, yellow dextrin, British gum, red dextrin, and achromatic dextrin can be cited, and any one or two or more thereof can be selected and used. Preferred examples of the dextrin contained in the cosmetic of the present invention include hydrolyzed corn starch, hydrolyzed tapioca, hydrolyzed potato, or hydrolyzed sugarcane, and hydrolyzed corn starch is particularly preferred. As the trade names of commercially available products of hydrolyzed corn starch, “Pinedex#1 (manufactured by Matsutani Chemical Industry Co., Ltd.)”, “Pinedex#2 (manufactured by Matsutani Chemical Industry Co., Ltd.)”, “Pinedex#3 (manufactured by Matsutani Chemical Industry Co., Ltd.)”, “Pinedex#4 (manufactured by Matsutani Chemical Industry Co., Ltd.)”, “Pinedex#6 (manufactured by Matsutani Chemical Industry Co., Ltd.)”, “Pinedex#100 (manufactured by Matsutani Chemical Industry Co., Ltd.)” can be cited.

[0044] The DE (Dextrose Equivalent) of the dextrin contained in the cosmetic of the present invention is preferably 1 to 35, more preferably 10 to 30. Here, DE is generally an index indicating the degree of decomposition of starch, and is a value obtained by multiplying the ratio of reducing sugar to the total amount by 100.

[0045] The blending amount of the dextrin contained in the cosmetic of the present invention is not particularly limited as long as it is 0.1 to 18% by mass based on the total amount of the cosmetic, and is preferably 0.5 to 15% by mass based on the total amount of the cosmetic, more preferably 1 to 10% by mass based on the total amount of the cosmetic.

[0046] As the polysaccharide thickener contained in the cosmetic of the present invention, plant-derived, seaweed-derived, microorganism-derived, and any other polysaccharide thickeners can be used.

[0047] The polysaccharide thickeners contained in the cosmetics of the present invention are not particularly limited, and examples thereof include xanthan gum, gellan gum, succinoglucan, scleroglucan, gum arabic, hydroxyethyl cellulose, guar gum, carrageenan, hyaluronic acid, tuberose polysaccharide, tremella polysaccharide, locust bean gum, oxidized cellulose, etc. One or more of these polysaccharide thickeners can be used. Among these, xanthan gum and / or succinoglucan are preferred, xanthan gum or succinoglucan is more preferred, and xanthan gum is particularly preferred.

[0048] The blending amount of the polysaccharide thickener contained in the cosmetics of the present invention is not particularly limited, and is preferably 0.01 to 0.9% by mass based on the total amount of the makeup amount, more preferably 0.15 to 0.8% by mass based on the total amount of the makeup amount, and still more preferably 0.15 to 0.5% by mass based on the total amount of the makeup amount.

[0049] The polyacrylamide compound contained in the cosmetics of the present invention is not particularly limited, and is a homopolymer or copolymer containing one or more selected from 2-acrylamide-2-methylpropanesulfonic acid, acrylic acid and their derivatives as structural units, or a crosslinked polymer of these polymers. Specific examples of such polyacrylamide compounds include copolymers of 2-acrylamide-2-methylpropanesulfonic acid or its salts / vinylpyrrolidone, copolymers of 2-acrylamide-2-methylpropanesulfonic acid or its salts / dimethylacrylamide, copolymers of 2-acrylamide-2-methylpropanesulfonic acid / acrylamide, crosslinked polymers of dimethylacrylamide / 2-acrylamide-2-methylpropanesulfonic acid crosslinked with methylenebisacrylamide, mixtures of polyacrylamide and sodium polyacrylate, copolymers of 2-acrylamide-2-methylpropanesulfonic acid / sodium acrylate, copolymers of 2-acrylamide-2-methylpropanesulfonic acid or its salts / hydroxyethyl acrylate, ammonium polyacrylate, copolymers of ammonium acrylate / polyacrylamide, copolymers of sodium acrylate / acrylamide, etc. Preferred are copolymers of 2-acrylamide-2-methylpropanesulfonic acid or its salts / vinylpyrrolidone, or copolymers of 2-acrylamide-2-methylpropanesulfonic acid or its salts / dimethylacrylamide, and more preferred are ammonium acryloyldimethyltaurate / VP copolymer or dimethylacrylamide / sodium acryloyldimethyltaurate crosslinked polymer.

[0050] The blending amount of the polyacrylamide compound contained in the cosmetics of the present invention is not particularly limited, and is 0.1 to 10% by mass based on the total amount of the makeup amount, more preferably 0.1 to 5% by mass based on the total amount of the makeup amount, and still more preferably 0.5 to 2% by mass based on the total amount of the makeup amount.

[0051] According to a preferred embodiment of the cosmetics of the present invention, an alkylene oxide derivative is optionally further contained.

[0052] As the alkylene oxide derivative optionally contained in the cosmetic of the present invention, a compound represented by the following formula (I) is preferred.

[0053] R 1 O-[(AO) p (EO) q -R 2 (Ⅰ)

[0054] (In the formula,

[0055] AO is an oxyalkylene group having 3 to 4 carbon atoms, EO is an oxyethylene group, p and q are the average addition molar numbers of an oxyalkylene group having 3 to 4 carbon atoms and an oxyethylene group, respectively, 1 ≤ p ≤ 70, 1 ≤ q ≤ 70, and the ratio of oxyethylene to the total of oxyalkylene and oxyethylene is 20 to 80% by mass.

[0056] The oxyalkylene group and the oxyethylene group may be added in a block form or in a random form.

[0057] R 1 and R 2 are optionally the same or different hydrocarbon groups having 1 to 4 carbon atoms or hydrogen atoms, and the ratio of the number of hydrogen atoms of R 1 and R 2 to the number of hydrocarbon groups is 0.15 or less).

[0058] In the compound represented by the above formula (I), AO is an oxyalkylene group having 3 to 4 carbon atoms, and examples thereof include an oxypropylene group, an oxybutylene group, an oxyisobutylene group, a trimethylene group, a tetramethylene group, etc., and an oxypropylene group or an oxybutylene group is preferably exemplified. p is the average addition molar number of an oxyalkylene group having 3 to 4 carbon atoms, 1 ≤ p ≤ 70, preferably 2 ≤ p ≤ 20. q is the average addition molar number of an oxyethylene group, 1 ≤ q ≤ 70, preferably 2 ≤ q ≤ 20. In addition, (p + q) is preferably 8 to 100.

[0059] In addition, in the compound represented by the above formula (I), the ratio of oxyethylene to the total of oxyalkylene having 3 to 4 carbon atoms and oxyethylene is preferably 20 to 80% by mass. The addition order of ethylene oxide and an alkylene oxide having 3 to 4 carbon atoms is not particularly limited. In addition, the oxyethylene group and the oxyalkylene group having 3 to 4 carbon atoms may be added in a block form or in a random form, and random addition is preferred. Here, the block form is not limited to a two-block form and also includes a three-block form.

[0060] R 1 and R 2 may each be of the same type, or a hydrocarbon group having 1 to 4 carbon atoms and a hydrogen atom may be mixed, or different types of hydrocarbon groups having 1 to 4 carbon atoms may be mixed. Among them, R 1 and R 2In the hydrocarbon group, regarding the existence ratio of the hydrocarbon group and hydrogen atoms, the ratio Y / X of the number of hydrogen atoms (Y) to the number of hydrocarbon groups (X) is 0.15 or less, preferably 0.06 or less.

[0061] As specific alkylene oxide derivatives, for example, polyoxyethylene (10 moles) polyoxypropylene (10 moles) dimethyl ether, polyoxyethylene (9 moles) polyoxypropylene (2 moles) dimethyl ether, polyoxyethylene (14 moles) polyoxypropylene (7 moles) dimethyl ether, polyoxyethylene (6 moles) polyoxypropylene (14 moles) dimethyl ether, polyoxyethylene (15 moles) polyoxypropylene (5 moles) dimethyl ether, polyoxyethylene (25 moles) polyoxypropylene (25 moles) dimethyl ether, polyoxyethylene (9 moles) polyoxybutene (2 moles) dimethyl ether, polyoxyethylene (14 moles) polyoxybutene (7 moles) dimethyl ether, polyoxyethylene (10 moles) polyoxypropylene (10 moles) diethyl ether, polyoxyethylene (10 moles) polyoxypropylene (10 moles) dipropyl ether, polyoxyethylene (10 moles) polyoxypropylene (10 moles) dibutyl ether, polyoxyethylene (36 moles) polyoxypropylene (41 moles) dimethyl ether, etc. Among these, polyoxyethylene (14 moles) polyoxypropylene (7 moles) dimethyl ether is particularly preferred.

[0062] The alkylene oxide derivative of the present invention can be produced by a known method. For example, it is obtained by addition polymerization of ethylene oxide and an alkylene oxide having 3 to 4 carbon atoms with a compound having a hydroxyl group, and then subjecting a haloalkyl group to an ether reaction in the presence of a basic catalyst.

[0063] The blending amount of the alkylene oxide derivative optionally contained in the cosmetic of the present invention is not particularly limited, and is preferably 0.01 to 70% by mass, more preferably 0.1 to 30% by mass, further preferably 1 to 10% by mass, further preferably 1 to 7% by mass, and particularly preferably 4 to 6% by mass based on the total amount of the cosmetic.

[0064] According to a preferred embodiment of the cosmetic of the present invention, a surfactant is optionally further contained.

[0065] The surfactant optionally contained in the cosmetic of the present invention is not particularly limited, and preferably includes a nonionic surfactant or an anionic surfactant.

[0066] As the nonionic surfactant optionally contained in the cosmetic of the present invention, lipophilic nonionic surfactants and hydrophilic nonionic surfactants can be mentioned. For example, sorbitan fatty acid esters (e.g., sorbitan monooleate, sorbitan monoisostearate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan sesquioleate, sorbitan trioleate, diglycerol sorbitan penta-2-ethylhexanoate, diglycerol sorbitan tetra-2-ethylhexanoate, etc.), polyglycerol fatty acid glycerol esters (e.g., glycerol monocottonseed fatty acid ester, glycerol monoeicosanoate, glycerol sesquioleate, glycerol monostearate, glycerol α,α'-oleate pyroglutamate, glycerol monostearate malate, etc.), propylene glycol fatty acid esters (e.g., propylene glycol monostearate, etc.), hydrogenated castor oil derivatives, glycerol alkyl ethers, POE-sorbitan fatty acid esters (e.g., POE-sorbitan monooleate, POE-sorbitan monostearate, POE-sorbitan monooleate, POE-sorbitan tetraoleate, etc.), POE-sorbitol fatty acid esters (e.g., POE-sorbitol monolaurate, POE-sorbitol monooleate, POE-sorbitol pentaoleate, POE-sorbitol monostearate, etc.), POE-glycerol fatty acid esters (e.g., POE-glycerol monostearate, POE-glycerol monoisostearate, POE-glycerol triisostearate, etc. POE-monooleate, etc.), POE-fatty acid esters (e.g., POE-distearate, POE-mono dioleate, ethylene glycol distearate, etc.), POE-alkyl ethers (e.g., POE-lauryl ether, POE-oleyl ether, POE-stearyl ether, POE-behenyl ether, POE-2-octyldodecyl ether, POE-cholesterol ether, etc.), Pluronic type (e.g., Pluronic, etc.), POE·POP-alkyl ethers (e.g., POE·POP-cetyl ether, POE·POP-2-decyltetradecyl ether, POE·POP-decyltetradecyl ether, POE·POP-monobutyl ether, POE·POP-hydrogenated lanolin, POE·POP-glycerol ether, etc.), tetra POE·tetra POP-ethylenediamine condensates (e.g., Tetronic, etc.), POE-castor oil hydrogenated castor oil derivatives (e.g., POE-castor oil, POE-hydrogenated castor oil, POE-hydrogenated castor oil monoisostearate, POE-hydrogenated castor oil triisostearate, POE-hydrogenated castor oil monopyroglutamate monoisostearate diester, POE-hydrogenated castor oil maleate, etc.), POE-beeswax·lanolin derivatives (e.g., polyoxyethylene sorbitan POE-beeswax, etc.), alkanolamides (e.g., coconut fatty acid diethanolamide, lauric acid monoethanolamide, fatty acid isopropanolamide, etc.), POE-propylene glycol fatty acid esters, POE-alkylamines, POE-fatty amides, sucrose fatty acid esters, alkyl ethoxydimethylamine oxide-triclinoleyl phosphate, etc. Among these, POE·POP-decyltetradecyl ether is preferably mentioned. As a commercially available product of POE·POP-decyltetradecyl ether, "S-Safe1324" (manufactured by NOF Corporation) can be mentioned.,

[0067] As the anionic surfactant optionally contained in the cosmetic of the present invention, specifically, N-acyl amino acid salts, N-acyl methyl taurates, alkyl ether phosphate salts, alkyl sulfate salts, polyoxyethylene alkyl ether sulfates, etc. can be mentioned. For example, N-acyl glutamate salts such as potassium cocoyl glutamate, N-acyl-N-methyl-β-alanine salts, N-acyl sarcosine salts, sodium N-cocoyl taurate, sodium N-cocoyl-N-methyl taurate, sodium N-lauroyl-N-methyl taurate, sodium N-coconut oil fatty acid-N-methyl taurate, triethanolamine N-coconut oil fatty acid-N-methyl taurate, triethanolamine N-palm oil fatty acid-N-ethyl taurate, magnesium N-cocoyl taurate, magnesium N-cocoyl-N-methyl taurate, magnesium N-lauroyl-N-taurate, magnesium N-lauroyl-N-methyl taurate, magnesium N-coconut oil fatty acid-N-methyl taurate, etc. Among these, sodium N-coconut oil fatty acid-N-methyl taurate is preferably mentioned. As the trade name of the specific commercially available product of sodium N-coconut oil fatty acid-N-methyl taurate, "ST-SF Super" (manufactured by NOF Corporation) etc. can be mentioned.

[0068] The blending amount of the surfactant optionally contained in the cosmetic of the present invention is not particularly limited, and it is preferably 0.01 to 5% by mass, more preferably 0.1 to 3% by mass, and still more preferably 0.2 to 1% by mass based on the total amount of the cosmetic.

[0069] According to a preferred embodiment of the cosmetic of the present invention, a humectant is optionally further contained.

[0070] As the humectant optionally contained in the cosmetic of the present invention, for example, dipropylene glycol, polyethylene glycol, propylene glycol, isopentylene glycol, isopentylene glycol, glycerin, diglycerin, decaglycerin, 1,3-butanediol, xylitol, sorbitol, maltitol, erythritol, chondroitin sulfate, hyaluronic acid, mucin sulfate, carotenic acid, hydrolyzed corn starch, collagen, cholesteryl 12-hydroxystearate, bis-PEG-18 methyl ether dimethylsilane, sodium lactate, bile salts, dl-pyrrolidone carboxylate, short-chain soluble collagen, diglycerin (EO)PO adduct, Rosa roxburghii fruit extract, Achillea millefolium extract, Melilotus officinalis extract, etc. can be mentioned. Dipropylene glycol, glycerin, 1,3-butanediol, isopentylene glycol and / or bis-PEG-18 methyl ether dimethylsilane are preferably mentioned. As the trade name of the specific commercially available product of bis-PEG-18 methyl ether dimethylsilane, "2501 Cosmetic Wax" (manufactured by Dow Corning Toray Co., Ltd.), "SM4110P" (manufactured by KCC Corporation), etc. can be mentioned.

[0071] The blending amount of the moisturizer optionally contained in the cosmetic of the present invention is not particularly limited, and is preferably 1 to 60% by mass, more preferably 5 to 50% by mass, and still more preferably 10 to 40% by mass based on the total amount of the cosmetic.

[0072] In a preferred embodiment of the cosmetic according to the present invention, an abrasive is optionally further contained.

[0073] The abrasive optionally contained in the cosmetic of the present invention contains particulate substances, and examples thereof include hydrocarbon-based polymer powders such as polyethylene, polypropylene, and polystyrene, polyamide-based polymer powders such as nylon, vinyl-based polymer powders such as polyvinyl chloride, polyacrylonitrile, polyvinyl acetate, and polyvinylidene fluoride, polyurethane-based polymer powders and their copolymers, and other general polymer materials, and inorganic powders represented by talc powder and titanium powder, etc. One or more of these can be used.

[0074] Regarding the average particle size of the abrasive, in the case where only a cleaning effect is expected, those having an average particle size of 20 μm or more can be applied. In the case where a cleaning effect in terms of sensory perception is further expected, those having an average particle size of 50 μm or more can be used. The upper limit of the average particle size is generally 1 mmφ at a level where no sense of incongruity is felt in terms of sensory perception. The preferred average particle size is about 50 to 500 μm, and more preferably 100 to 300 μm. The average particle size can be measured according to the laser diffraction / scattering method.

[0075] The blending amount of the abrasive optionally contained in the cosmetic of the present invention is preferably 0.01 to 6% by weight, and still more preferably 0.1 to 5% by weight based on the total amount of the cosmetic.

[0076] In addition to the above components, the cosmetic of the present invention can be blended with components used in ordinary cosmetics, cosmetics, and pharmaceutical cleaning agents and manufactured by a conventional method. As the components, the following substances can be cited, and as long as the effects of the present invention can be exerted, one or more of the following components can be further blended for manufacturing.

[0077] In the cosmetic of the present invention, in addition to the above essential components, components commonly used in cosmetics, such as powder components, oily components, ultraviolet absorbers, masking agents, monosaccharides, oligosaccharides, amino acids, organic amines, polymer emulsions, alcohols, pH regulators, dispersants, antioxidants, fragrances, preservatives, stabilizers, etc., can be appropriately blended as needed.

[0078] In addition to the above components, the cosmetic of the present invention can also contain water. As the water, water used in cosmetics, quasi-drugs, etc. can be used, for example, purified water, ion-exchanged water, tap water, etc. can be used.

[0079] The amount of water in the cosmetic of the present invention can be preferably 5% by mass or more relative to the total amount of the cosmetic, and more preferably 10% by mass or more relative to the total amount of the cosmetic. The amount of water in the cosmetic of the present invention can be preferably 80% by mass or less relative to the total amount of the cosmetic, and more preferably 70% by mass or less relative to the total amount of the cosmetic.

[0080] According to a preferred embodiment of the cosmetic of the present invention, it is a cleansing agent. In addition, according to a more preferred embodiment of the cosmetic of the present invention, it is a gel cleansing agent. A gel cleansing agent refers to a liquid to semi-solid cleansing agent having fluidity, and the viscosity (B-type viscometer, 30°C) is preferably 1000 mPa·s or more. In addition, the gel cleansing agent is preferably transparent or translucent, and more preferably transparent, depending on the application.

[0081] The cosmetic of the present invention is preferably a skin cleanser, and its dosage form is preferably in the form of a lotion, a gel, or a cream, and more preferably in the form of a gel.

[0082] The dosage form of the cosmetic of the present invention may be any dosage form, such as a solution system, a solubilized system, an emulsified system, a powder dispersion system, a water-oil two-layer system, or a water-oil-powder three-layer system.

[0083] Example

[0084] The present invention will be specifically described based on the following examples, but the present invention is not limited to these examples. The blending amount is expressed in mass % unless otherwise specified.

[0085] Test Example 1: Useability Evaluation Test of Cosmetics

[0086] Cosmetics (Examples 1 to 11 and Comparative Examples 1 to 7) were prepared based on the ingredients and their blending amounts listed in Tables 1 to 3 below. These cosmetics were evaluated for (1) the thick feel of spreadability, (2) the degree of difficulty in washing away (Japanese: 洗い流しの良さ), (3) the dry feeling after washing, and (4) the manufacturability. The evaluation method for each evaluation was performed as follows. The evaluation results are shown in Tables 1 to 3 below.

[0087] (1) Extended heaviness

[0088] An actual usability test was conducted by 10 professional panelists. The thickness of each cosmetic when applied to the skin was evaluated based on the following criteria.

[0089] <Evaluation Criteria>

[0090] A: More than 6 panelists answered that ductility is thick.

[0091] B: 3 to 5 panelists answered that the ductility is thick.

[0092] C: Less than 2 members of the panel answered that it was malleable and thick.

[0093] (2) Degree of resistance to being washed off

[0094] Conduct a practical usability test based on 10 professional panel members. Using each cosmetic product, evaluate the degree of resistance to being washed off of the cosmetic product after washing based on the following criteria.

[0095] <Evaluation Criteria>

[0096] A: 6 or more members of the panel answered that the degree of resistance to being washed off was good.

[0097] B: 3 - 5 members of the panel answered that the degree of resistance to being washed off was good.

[0098] C: Less than 2 members of the panel answered that the degree of resistance to being washed off was good.

[0099] (3) Dry feeling after washing

[0100] Conduct a practical usability test based on 10 professional panel members. Using each cosmetic product, evaluate the dry feeling of the skin after washing based on the following criteria.

[0101] <Evaluation Criteria>

[0102] A: 6 or more members of the panel answered that the dry feeling after washing was good.

[0103] B: 3 - 5 members of the panel answered that the dry feeling after washing was good.

[0104] C: Less than 2 members of the panel answered that the dry feeling after washing was good.

[0105] (4) Manufacturability

[0106] Manufacture cosmetics with the compositions shown in Tables 1 - 3 below respectively, and evaluate the manufacturability of the cosmetics based on the following criteria.

[0107] <Evaluation Criteria>

[0108] A: It can be stirred.

[0109] B: It cannot be stirred.

[0110] [Table 1]

[0111]

[0112] [Table 2]

[0113]

[0114] [Table 3]

[0115] Table 3: Example 11 and Its Evaluation Results

[0116]

[0117] ※ The values in the table represent mass %.

[0118] ※※ In the table, PEG / PPG-14 / 7 dimethyl ether represents polyoxyethylene (14 moles) polyoxypropylene (7 moles) dimethyl ether.

[0119] Pinedex#3 is manufactured by Matsutani Chemical Industry Co., Ltd.

[0120] From the results of Tables 1 to 3, it can be seen that the cosmetics of Examples 1 to 11 included within the scope of the present invention are all "A" or "B" in the evaluation criteria, showing good evaluation results.

[0121] On the other hand, cosmetics without dextrin or xanthan gum are evaluated as "C" in any of the evaluation criteria of the heaviness of extensibility, the degree of being not easily washed off, and the dry feeling after washing, indicating that it is impossible to balance the smooth feeling of the skin after washing and the refreshing feeling after washing. In addition, cosmetics containing 20% by mass of dextrin or cosmetics containing 1% by mass of xanthan gum are evaluated as "B" in the degree of being not easily washed off and manufacturability, and cannot balance the smooth feeling of the skin after washing and the refreshing feeling after washing, and are poor in terms of the manufacturability of cosmetics.

[0122] In addition, cosmetics without a polyacrylamide compound composed of a homopolymer or copolymer containing 1 or more of 2-acrylamide-2-methylpropanesulfonic acid, acrylic acid, and their derivatives as structural units or a crosslinked polymer of these polymers are evaluated as "C" in the evaluation criteria of the heaviness of extensibility and / or the dry feeling after washing, indicating that it is impossible to balance the smooth feeling of the skin after washing and the refreshing feeling after washing.

Claims

1. A cosmetic, comprising: (A) dextrin, (B) xanthan gum or succinoglucan, and (C) ammonium acryloyldimethyltaurate / vinylpyrrolidone copolymer or dimethylacrylamide / sodium acryloyldimethyltaurate crosslinked polymer, wherein the cosmetic is a cleansing agent, (A) the content of dextrin is 0.1 to 18% by mass relative to the total amount of the cosmetic, and (B) the content of xanthan gum or succinoglucan is 0.01 to 0.9% by mass relative to the total amount of the cosmetic, and (C) the content of ammonium acryloyldimethyltaurate / vinylpyrrolidone copolymer or dimethylacrylamide / sodium acryloyldimethyltaurate crosslinked polymer is 0.1 to 10% by mass relative to the total amount of the cosmetic.

2. The cosmetic according to claim 1, wherein, (A) the content of dextrin is 2 to 15% by mass relative to the total amount of the cosmetic.

3. The cosmetic according to claim 1 or 2, wherein, (B) the content of xanthan gum or succinoglucan is 0.15 to 0.8% by mass relative to the total amount of the cosmetic.

4. The cosmetic according to claim 1 or 2, further comprising a compound represented by the following formula (I): R 1 O-[(AO) p (EO) q -R 2 (I) wherein, AO is an oxyalkylene having 3 to 4 carbon atoms, EO is oxyethylene, p and q are the average addition molar numbers of an oxyalkylene having 3 to 4 carbon atoms and oxyethylene, respectively, 1 ≤ p ≤ 70, 1 ≤ q ≤ 70, and the ratio of oxyethylene to the total of oxyalkylene and oxyethylene is 20 to 80% by mass, the oxyalkylene and oxyethylene can be added in a block form or in a random form, R 1 and R 2 are each independently an optionally identical or different hydrocarbon group having 1 to 4 carbon atoms or a hydrogen atom, and the ratio of the number of hydrogen atoms of R 1 and R 2 to the number of hydrocarbon groups is 0.15 or less.

5. The cosmetic according to claim 4, wherein, in the compound represented by formula (I), the oxyalkylene and oxyethylene are added in a random form.

6. The cosmetic according to claim 1 or 2, further comprising a surfactant.

7. The cosmetic according to claim 1 or 2, further comprising a humectant.

8. The cosmetic according to claim 1 or 2, further comprising an abrasive.

9. The cosmetic according to claim 1 or 2 is a gel-like cleansing agent.

10. The cosmetic according to claim 1 or 2 is a skin cleansing agent.

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