Thickening composition, method for producing same, and cosmetic

Abstract

[Problem] To provide a thickening composition having excellent thickening effect, usability, and storage stability, and a cosmetic containing the composition. [Solution] A thickening composition containing (A) agar, (B) a water-swellable clay mineral, and (C) carboxymethyl cellulose and / or a salt thereof is used, and a cosmetic containing the composition is used.

Description

Technical Field

[0001] The present invention relates to a thickening composition and a method for producing the same. Further, the present invention relates to cosmetics. Background Art

[0002] Conventionally, various cosmetics applied to the skin to improve the skin texture have been studied. For such cosmetics, various properties during use are required.

[0003] For example, as a cosmetic having no sticky feeling, excellent usability, and excellent storage stability, Patent Document 1 proposes using a thickener containing a microgel formed of a hydrophilic compound having a gelation ability and a thickening compound having no gelation ability in cosmetics. Further, Patent Document 2 proposes using a thickening composition containing a microgel formed of a specific hydrophobically modified polyether polyurethane and a hydrophilic compound having a gelation ability and having a viscosity within a specific range in cosmetics.

[0004] Prior Art Documents

[0005] Patent Documents

[0006] Patent Document 1: Japanese Patent Application Laid-Open No. 2001-342451

[0007] Patent Document 2: Japanese Patent Application Laid-Open No. 2011-231061 Summary of the Invention

[0008] Generally, for cosmetics, if the target properties are improved according to the use, it is difficult to balance with other properties, and it is difficult to satisfy all the properties at the same time. Therefore, there is still a need for a cosmetic that can achieve this balance and simultaneously improve multiple properties.

[0009] The thickeners described in Patent Documents 1 and 2 have room for improvement in terms of thickening effect and storage stability. Further, the cosmetics described in Patent Documents 1 and 2 have room for improvement in terms of usability (feeling of freshness, non-stickiness) and storage stability.

[0010] The present inventors conducted intensive studies to solve the above problems, and as a result, found that the above problems can be solved by incorporating agar, a water-swellable clay mineral, and carboxymethyl cellulose and / or its salt into a thickening composition, thereby completing the present invention.

[0011] According to the present invention, the following inventions are provided.

[0012] [1] A thickening composition comprising:

[0013] (A) agar,

[0014] (B) a water-swellable clay mineral, and

[0015] (C) Carboxymethyl cellulose and / or its salts.

[0016] [2] The thickening composition according to [1], wherein the thickening composition is a microgel having an average particle size of 0.1 to 1000 μm, which is obtained by dissolving the foregoing component (A), the foregoing component (B), and the foregoing component (C) in water or an aqueous component, allowing the solution to cool to form a gel, and then pulverizing the gel.

[0017] [3] The thickening composition according to [1] or [2], wherein the mass ratio (A / B) of the foregoing component (A) to the foregoing component (B) is 0.10 or more and 5.00 or less.

[0018] [4] The thickening composition according to any one of [1] to [3], wherein the viscosity of the thickening composition is 20000 mPa·s or more and 100000 mPa·s or less.

[0019] [5] The thickening composition according to any one of [1] to [4], wherein the content of the foregoing component (A) relative to the total mass of the thickening composition is 0.5% by mass or more and 5.0% by mass or less.

[0020] [6] The thickening composition according to any one of [1] to [5], wherein the content of the foregoing component (B) relative to the total mass of the thickening composition is 0.5% by mass or more and 5.0% by mass or less.

[0021] [7] The thickening composition according to any one of [1] to [6], wherein the content of the foregoing component (C) relative to the total mass of the thickening composition is 0.01% by mass or more and 1.0% by mass or less.

[0022] [8] The thickening composition according to any one of [1] to [7], wherein the foregoing water-swellable clay mineral (B) is at least one selected from the group consisting of synthetic hectorite (Laponite), montmorillonite, and saponite.

[0023] [9] A method for producing a thickening composition, which is a method for producing a thickening composition comprising (A) agar, (B) a water-swellable clay mineral, and (C) carboxymethyl cellulose and / or its salts, wherein

[0024] The foregoing component (A), the foregoing component (B), and the foregoing component (C) are dissolved in water or an aqueous component, allowed to cool to form a gel, and then pulverized to form a microgel having an average particle size of 0.1 to 1000 μm, thereby obtaining the thickening composition.

[0025]

[10] A cosmetic product, which contains the thickening composition described in any one of [1] to [8].

[0026]

[11] A cosmetic product, which contains:

[0027] (A) Agar,

[0028] (B) Water-swellable clay mineral, and

[0029] (C) Carboxymethyl cellulose and / or its salt.

[0030] According to the present invention, there is provided a thickening composition excellent in thickening effect, usability (fresh feeling, non-greasy) and storage stability. In addition, according to the present invention, there is provided a cosmetic product excellent in usability (fresh feeling, non-greasy) and storage stability, which contains the thickening composition. Detailed implementation mode

[0031] [Thickening composition]

[0032] The thickening composition of the present invention contains: (A) agar, (B) water-swellable clay mineral, and (C) carboxymethyl cellulose and / or its salt.

[0033] ((A) Agar)

[0034] As (A) agar, agar known in the past for cosmetic use can be used. As agar, for example, agar mainly composed of agarose with high gelling power can be preferably used. Agar can be either a natural product or a processed product. As commercially available agar, for example, Ina agar PS-84, Z-10, AX-30, AX-100, AX-200, T-1, S-5, M-7 (manufactured by Ina Food Industry Co., Ltd.) etc. can be preferably used. In addition, purified agarose can also be used as agar.

[0035] The blending amount of the component (A) is preferably 0.5% by mass or more and 5.0% by mass or less, more preferably 0.6% by mass or more and 4.0% by mass or less, and further preferably 0.7% by mass or more and 3.0% by mass or less with respect to the total mass of the thickening composition. If the blending amount of the component (A) is within the above numerical range, it is easy to obtain a thickening composition excellent in thickening effect, usability and storage stability.

[0036] ((B) Water-swellable clay mineral)

[0037] As (B) water-swellable clay mineral, water-swellable clay minerals known in the past for cosmetic use can be used. As water-swellable clay minerals, for example, synthetic hectorite, montmorillonite and saponite can be cited. These water-swellable clay minerals can be used alone or in combination of two or more.

[0038] (B) The blending amount of the component is preferably 0.5% by mass or more and 5.0% by mass or less, more preferably 0.6% by mass or more and 4.0% by mass or less, and further preferably 0.7% by mass or more and 3.0% by mass or less, based on the total mass of the thickening composition. When the blending amount of the (B) component is within the above numerical range, a thickening composition excellent in thickening effect, usability, and storage stability can be easily obtained.

[0039] ((C) Carboxymethyl cellulose and / or its salts)

[0040] As the (C) carboxymethyl cellulose, carboxymethyl cellulose known in the past for cosmetic use can be used. Examples of the salts of carboxymethyl cellulose include alkali metal salts such as sodium carboxymethyl cellulose and potassium carboxymethyl cellulose.

[0041] (C) The blending amount of the component is preferably 0.01% by mass or more and 1.0% by mass or less, more preferably 0.02% by mass or more and 0.8% by mass or less, and further preferably 0.03% by mass or more and 0.6% by mass or less, based on the total mass of the thickening composition. When the blending amount of the (C) component is within the above numerical range, a thickening composition excellent in thickening effect, usability, and storage stability can be easily obtained.

[0042] The thickening composition of the present invention can be produced by the following method. First, the (A) component, (B) component, and (C) component are dissolved in water or an aqueous component and then allowed to cool to form a gel. The dissolution of the above (A) to (C) components in water or an aqueous component can be carried out by mixing, heating, etc. In addition, the gelation (solidification) is carried out by stopping heating after dissolution and allowing it to stand (be static) until it reaches a temperature lower than the gelation temperature (solidification temperature).

[0043] In the blending of the thickening composition, the mass ratio (A / B) of the (A) component to the (B) component is preferably 0.10 or more and 5.00 or less, more preferably 0.20 or more and 4.00 or less, further preferably 0.30 or more and 3.00 or less, and still more preferably 0.40 or more and 2.50 or less.

[0044] In the blending of the thickening composition, the mass ratio (C / (A + B)) of the (C) component to the total of the (A) and (B) components is preferably 0.001 or more and 0.50 or less, more preferably 0.002 or more and 0.40 or less, and further preferably 0.003 or more and 0.30 or less.

[0045] By blending the (A) to (C) components in the above mass ratio, the storage stability can be improved without impairing the usability (fresh feeling, non-greasy).

[0046] As the aqueous component, there is no particular limitation as long as it is an aqueous component that can be used in the fields of cosmetics and pharmaceuticals. As the aqueous component, in addition to diols such as 1,3-butanediol, propylene glycol, and dipropylene glycol; lower alcohols such as glycerin, ethanol, and propanol, it can also contain components that are usually incorporated as the aqueous phase components of cosmetics. Specifically, examples include: chelating agents such as metaphosphates and edetates; preservatives such as phenoxyethanol; pH adjusters, etc., but not limited to these examples.

[0047] Next, the gel formed above is broken using a homogenizer, disperser, mechanical stirrer, etc. to obtain a thickening composition composed of the desired microgels. In the present invention, the average particle size of the microgels is 0.1 to 1000 μm, preferably about 1 to 300 μm, more preferably about 10 to 200 μm. If the average particle size of the microgels is within the above numerical range, it is easy to obtain a thickening effect, and the usability (fresh feeling, non-greasy) is good when incorporated into cosmetics. The degree of fragmentation can be adjusted according to the purpose as long as the average particle size of the obtained microgels does not deviate from the range in the present invention.

[0048] The structure of the microgels (thickening composition) of the present invention obtained by using the above three components (A) to (C) and by the above method is different from the structure of the microgels obtained by using the two components (A) and (B) and by the above method. By adding the component (C), the aggregation of the microgels is inhibited by the protective colloid effect, and the gel structure is stabilized. Therefore, it is considered that, compared with the two-component system microgels, the microgels of the present invention have good storage stability and do not impair the usability (fresh feeling, non-greasy) when incorporated into cosmetics. However, the structure of the microgels of the present invention is difficult to specifically define by analysis, and this approach is not practical.

[0049] The viscosity of the thickening composition can be appropriately adjusted according to the use. For example, it is preferably 20000 mPa·s or more and 100000 mPa·s or less, more preferably 25000 mPa·s or more and 70000 mPa·s or less, and further preferably 30000 mPa·s or more and 50000 mPa·s or less as measured by a B-type viscometer (rotation speed 10 rpm) at 25°C. If the viscosity of the thickening composition is within the above numerical range, it is easy to obtain a thickening effect, and the usability (fresh feeling, non-greasy) is good when incorporated into cosmetics.

[0050] [Cosmetics]

[0051] The cosmetic of the present invention contains (A) agar, (B) water-swellable clay mineral, and (C) carboxymethyl cellulose and / or its salt. As a preferred embodiment, the cosmetic of the present invention contains the microgel obtained by the above method. Since the cosmetic of the present invention contains this microgel, it has an excellent thickening effect and good usability (refreshing feeling, non-greasy). It should be noted that the components (A) to (C) are as described above.

[0052] (Other components)

[0053] Within the scope of not impairing the effects of the present invention, the cosmetic of the present invention can contain other components that can be incorporated into cosmetics in addition to the above components (A) to (C). Examples of such other components include: oily components, pharmaceuticals, ultraviolet absorbers, neutralizing agents, pH regulators, antioxidants, preservatives, stabilizers, colorants, edible flavors, etc. These components can be appropriately combined and incorporated in any amount. These other components can be used alone or in combination of two or more.

[0054] Examples of oily components include: ester oils, silicone oils, liquid oils, solid oils, waxes, hydrocarbons, and higher fatty acids.

[0055] Examples of ester oils include: isopropyl myristate, cetyl ethylhexanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyl decanol dimethylethylhexanoate, cetyl lactate, myristyl lactate, acetylated lanolin, isocetyl stearate, isocetyl isostearate, 12-cholesteryl hydroxystearate, ethylene glycol bis(2-ethylhexanoate), dipentaerythritol fatty acid ester, N-alkyl ethylene glycol monoisostearate, neopentyl glycol didecanoate, diisostearyl malate, glycerol di-2-heptylundecanoate, trimethylolpropane tris(2-ethylhexanoate), trimethylolpropane triisostearate, pentaerythritol tetra(2-ethylhexanoate), glycerol tri-2-ethylhexanoate, glycerol tri(ethylhexanoate), glycerol tripalmitate, trimethylolpropane triisostearate, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, glycerol trimyristate, glycerol tri-2-heptylundecanoate, methyl ricinoleate, oleyl oleate, acetyl glyceride, 2-heptylundecyl palmitate, diisobutyl adipate, N-lauroyl-L-glutamic acid 2-octyldodecyl ester, 2-heptylundecyl adipate, ethyl laurate, di-2-ethylhexyl sebacate, 2-hexyl decyl myristate, 2-hexyl decyl palmitate, 2-hexyl decyl adipate, diisopropyl sebacate, 2-ethylhexyl succinate, triethyl citrate, etc.

[0056] Examples of silicone oils include: linear polysiloxanes (such as dimethylpolysiloxane, methylphenylpolysiloxane, diphenylpolysiloxane, etc.), cyclic polysiloxanes (such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, etc.), silicone resins with a three-dimensional network structure, silicone rubbers, various modified polysiloxanes (amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxane, fluorine-modified polysiloxane, etc.), acrylic silicones, and the like.

[0057] Examples of liquid oils and fats include: avocado oil, camellia seed oil, turtle oil, macadamia integrifolia seed oil, corn oil, mink oil, olive fruit oil, rapeseed oil, egg yolk oil, sesame seed oil, peach kernel oil, wheat germ oil, camellia oleifera abel oil, castor oil, linseed oil, safflower oil, cottonseed oil, perilla oil, soybean oil, peanut oil, tea seed oil, torreya grandis oil, rice bran oil, paulownia oil, japanese wood oil, jojoba seed oil, germ oil, triglycerol, and the like.

[0058] Examples of solid oils and fats include: cocoa seed butter, coconut oil, horse fat, hydrogenated coconut oil, oil palm oil, beef tallow, mutton fat, hydrogenated beef tallow, oil palm kernel oil, lard, beef bone fat, toxicodendron succedaneum wax kernel oil, hydrogenated oil, beef hoof oil, toxicodendron succedaneum wax, hydrogenated castor oil, and the like.

[0059] Examples of waxes include: beeswax, candelilla wax, cotton wax, carnauba wax, myrica rubra wax, ligustrum lucidum wax, spermaceti, montan wax, bran wax, lanolin, kapok wax, acetylated lanolin, liquid lanolin, sugarcane wax, isopropyl lanolate, hexyl laurate, hydrogenated lanolin, jojoba wax, anhydrous lanolin, lac wax, POE lanolin alcohol ether, POE lanolin alcohol acetate, POE cholesterol ether, polyethylene glycol lanolate, POE hydrogenated lanolin alcohol ether, and the like.

[0060] Examples of hydrocarbon oils include: liquid paraffin, isocetane, isododecane, ozokerite, squalane, squalene, pristane, paraffin wax, isoparaffin, ceresin, petrolatum, microcrystalline wax, hydrogenated polyisobutene, olefin oligomer, volatile hydrocarbon oils (such as isododecane, isocetane, undecane, tridecane, etc.), and the like.

[0061] Examples of higher fatty acids include: lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, undecylenic acid, tall oil fatty acid, isostearic acid, linoleic acid, linolenic acid, eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and the like.

[0062] Examples of the medicament include ascorbic acid (vitamin C), tranexamic acid, kojic acid, ellagic acid, arbutin, alkoxysalicylic acid, glycyrrhizic acid, tocopherol (vitamin E), retinol, and salts or derivatives thereof (e.g., sodium L-ascorbate, magnesium salt of L-ascorbate, glucoside of L-ascorbic acid, 2-O-ethyl-L-ascorbic acid, 3-O-ethyl-L-ascorbic acid, sodium salt of 4-methoxysalicylic acid, potassium salt of 4-methoxysalicylic acid, dipotassium glycyrrhizate, stearyl glycyrrhizate, tocopheryl acetate, retinol acetate, retinol palmitate, etc.), caffeine, tannin, verapamil and its derivatives, licorice extract, glabridin, hot water extract of Pyracantha fortuneana, various crude drugs, hydrolyzed silk, hydrolyzed conchiolin, green tea extract, Potentilla acaulis L. root extract, Angelica keiskei leaf / stem extract, Aloe vera leaf extract, Prunus serrulata leaf extract, Angelica acutiloba root extract, Citrus depressa peel extract, Iris germanica root extract, Gelidium divaricatum / Griffithsia pacifica / Laminaria angustata / Ulva lactuca / Laminaria japonica extract, Typha angustata spike extract, Pellionia repens leaf / stem extract, Camellia oleifera seed extract, Laminaria angustata / Laminaria japonica extract, Bupleurum krylovianum root extract, Tropaeolum majus leaf / stem extract, Cinnamomum cassia bark extract, Rosmarinus officinalis leaf oil, Lavandula angustifolia oil, glutamic acid, betaine, chlorphenesin, menthoxypropanediol, etc.

[0063] As ultraviolet absorbers, examples include: benzoic acid-based ultraviolet absorbers (e.g., p-aminobenzoic acid (hereinafter simply referred to as PABA), PABA monoglyceride, N,N-dipropoxyethyl p-aminobenzoate, N,N-diethoxyethyl p-aminobenzoate, N,N-dimethylethyl p-aminobenzoate, N,N-dimethylbutyl p-aminobenzoate, N,N-dimethylethyl p-aminobenzoate, etc.); anthranilic acid-based ultraviolet absorbers (e.g., homomenthyl N-acetylanthranilate, etc.); salicylic acid-based ultraviolet absorbers (e.g., amyl salicylate, menthyl salicylate, homomenthyl salicylate, octyl salicylate, phenyl salicylate, benzyl salicylate, p-isopropylphenyl salicylate, etc.); cinnamic acid-based ultraviolet absorbers (e.g., ethylhexyl cinnamate, ethyl 4-isopropylcinnamate, methyl 2,5-diisopropylcinnamate, ethyl 2,4-diisopropylcinnamate, methyl 2,4-diisopropylcinnamate, propyl p-methoxycinnamate, isopropyl p-methoxycinnamate, isoamyl p-methoxycinnamate, octyl p-methoxycinnamate (2-ethylhexyl p-methoxycinnamate), 2-ethoxyethyl p-methoxycinnamate, cyclohexyl p-methoxycinnamate, ethyl α-cyano-β-phenylcinnamate, 2-ethylhexyl α-cyano-β-phenylcinnamate, mono-2-ethylhexanoyl-dip-methoxycinnamoyl glycerol, etc.); benzophenone-based ultraviolet absorbers (e.g., 2,4-dihydroxybenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, 2,2',4,4'-tetrahydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxy-4'-methylbenzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfonate, 4-phenylbenzophenone, 2-ethylhexyl-4'-phenyl-benzophenone-2-carboxylate, 2-hydroxy-4-n-octyloxybenzophenone, 4-hydroxy-3-carboxybenzophenone, etc.); 3-(4'-methylbenzylidene)-d,l-camphor, 3-benzylidene-d,l-camphor; 2-phenyl-5-methylbenzoxazole; 2,2'-hydroxy-5-methylphenylbenzotriazole; 2-(2'-hydroxy-5'-tert-octylphenyl)benzotriazole; 2-(2'-hydroxy-5'-methylphenyl)benzotriazole; dibenzylazine; dianisoylmethane; 4-methoxy-4'-tert-butyldibenzoylmethane; 5-(3,3-dimethyl-2-norbornanyl)-3-pentan-2-one, etc.

[0064] As neutralizing agents, examples include: 2-amino-2-methyl-1-propanol, 2-amino-2-methyl-1,3-propanediol, potassium hydroxide, sodium hydroxide, triethanolamine, sodium carbonate, etc.

[0065] As pH regulators, examples include: buffers such as lactic acid-sodium lactate, citric acid-sodium citrate, succinic acid-sodium succinate, etc.

[0066] Examples of antioxidants include butylated hydroxytoluene (BHT), butylated hydroxyanisole (BHA), sodium metabisulfite, gallates, and the like.

[0067] Examples of preservatives include parabens such as methylparaben, ethylparaben, and butylparaben; benzoic acid, salicylic acid, sorbic acid, parachlorometacresol, hexachlorophene, benzalkonium chloride, chlorhexidine chloride, triclocarban, photosensitizing dye, phenoxyethanol, and the like.

[0068] (Use)

[0069] The cosmetic of the present invention can be suitably used as, for example, lotion, essence, emulsion, gel, sunscreen, cream, and the like.

[0070] Examples

[0071] The present invention will be specifically described based on the following examples, but the present invention is not limited to these examples. The content is expressed in mass% unless otherwise specified.

[0072] [Examples 1 to 16, Comparative Examples 1 to 15]

[0073] <Preparation of thickening composition>

[0074] The thickening compositions of each example and comparative example were prepared according to the formulations shown in Tables 1 to 4. It should be noted that in Tables 1 to 4, the mixing ratios of the respective components are in mass%.

[0075] Specifically, in an aqueous system, component (A) (or component (A')), component (B), and component (C) (or component (C')) were mixed, heated to 90°C and dissolved, and then allowed to cool to form a gel. The gel was pulverized using a homogenizer to form microgels (average particle size 100 μm). Then, the microgels obtained above were mixed and stirred with other components to obtain a thickening composition.

[0076] <Performance evaluation of thickening composition>

[0077] [pH]

[0078] For each of the thickening compositions prepared as described above, the pH was measured at 25°C using a pH meter. The measurement results are shown in Tables 1 to 4.

[0079] [Thickening effect]

[0080] For each of the thickening compositions prepared as described above, the viscosity was measured at 25°C using a B-type viscometer (rotation speed 10 rpm), and the thickening effect was evaluated according to the following evaluation criteria. The measurement results and evaluation results are shown in Tables 1 to 4.

[0081] (Evaluation Criteria)

[0082] A: The thickening effect is extremely excellent (viscosity above 30,000 mPa·s).

[0083] B: The thickening effect is excellent (viscosity above 20,000 mPa·s and below 30,000 mPa·s).

[0084] C: Almost no thickening effect is observed (viscosity above 500 mPa·s and below 20,000 mPa·s).

[0085] D: No thickening effect is observed (viscosity below 500 mPa·s).

[0086] [Usability]

[0087] Female subjects aged 30 to 40 were trained for sensory evaluation, and 10 professional evaluation panel members who could evaluate according to certain criteria were selected. Each professional evaluation panel member actually used each of the above-prepared thickening compositions and evaluated their usability (fresh feeling (no sticky feeling)) according to the following evaluation criteria. The evaluation results are shown in Tables 1 to 4.

[0088] (Evaluation Criteria)

[0089] A: More than 9 respondents answered no sticky feeling.

[0090] B: 7 - 8 respondents answered no sticky feeling.

[0091] C: 5 - 6 respondents answered no sticky feeling.

[0092] D: 4 or fewer respondents answered no sticky feeling.

[0093] [Storage Stability]

[0094] For each of the above-prepared thickening compositions, the degree of dehydration after storage at 40°C for 1 month was visually observed, and the storage stability (no dehydration) was evaluated according to the following evaluation criteria. The evaluation results are shown in Tables 1 to 4.

[0095] (Evaluation Criteria) A: No dehydration is observed at all. B: Almost no dehydration is observed. C: Slight water seepage is seen. D: Water seepage is visible.

[0096] [Table 1]

[0097]

[0098] [Table 2]

[0099]

[0100] [Table 3]

[0101]

[0102] [Table 4]

[0103]

[0104] As can be seen from the above results, the thickening composition of the present invention has excellent thickening effect, usability (fresh feeling, non-greasy), and storage stability. In addition, by examining the results of the comparative examples, it can be seen that in the thickening composition of the present invention, excellent effects are achieved by incorporating (A) agar, (B) water-swellable clay mineral, and (C) carboxymethyl cellulose and / or its salts.

[0105] <Cosmetic Formulation Example 1> Oil-in-water emulsion

[0106] Mix the following components to prepare a cosmetic. The following values are expressed in mass%.

[0107] (Components)

[0108]

[0109]

[0110] <Cosmetic Formulation Example 2> Oil-in-water emulsion

[0111] Mix the following components to prepare a cosmetic. The following values are expressed in mass%.

[0112] (Components)

[0113]

[0114]

[0115] <Cosmetic Formulation Example 3> Oil-in-water emulsion

[0116] Mix the following components to prepare a cosmetic. The following values are expressed in mass%.

[0117] (Components)

[0118]

[0119]

[0120] <Cosmetic Formulation Example 4> Gel-like lotion

[0121] Mix the following components to prepare a cosmetic. The following values are expressed in mass%.

[0122] (Components)

[0123]

[0124]

[0125] <Cosmetic Formulation Example 5> Gel Toner

[0126] The following ingredients were mixed to prepare cosmetics. The following numerical values ​​are expressed in mass %.

[0127] (Combination ingredients)

[0128]

[0129]

[0130] <Cosmetic Formulation Example 6> Oil-in-water Cream

[0131] The following ingredients were mixed to prepare cosmetics. The following numerical values ​​are expressed in mass %.

[0132] (Combination ingredients)

[0133]

[0134]

[0135]

[0136] <Cosmetic Formulation Example 7> Oil-in-water Emulsion

[0137] The following ingredients were mixed to prepare cosmetics. The following numerical values ​​are expressed in mass %.

[0138] (Combination ingredients)

[0139]

[0140]

[0141] <Cosmetic Formulation Example 8> Gel Toner

[0142] The following ingredients were mixed to prepare cosmetics. The following numerical values ​​are expressed in mass %.

[0143] (Combination ingredients)

[0144]

[0145]

[0146]

[0147] <Cosmetic Formulation Example 9> Gel Toner

[0148] The following ingredients were mixed to prepare cosmetics. The following numerical values ​​are expressed in mass %.

[0149] (Combination ingredients)

[0150]

[0151]

[0152]

[0153] <Formulation Example 10 of Cosmetic> Oil-in-water type sunscreen cosmetic The following ingredients were mixed to prepare cosmetics. The following numerical values ​​are expressed in mass %.

[0154] (Combination ingredients)

[0155]

[0156]

[0157] <Cosmetic Formulation Example 11> Oil-in-water Foundation

[0158] The following ingredients were mixed to prepare cosmetics. The following numerical values ​​are expressed in mass %.

[0159] (Combination ingredients)

[0160]

[0161]

[0162] By using the thickening composition of the present invention, cosmetics having excellent thickening effect, usability (fresh feeling, non-stickiness) and storage stability can be prepared. As a result, the range of cosmetic formulations can be expanded.

Claims

1. A thickening composition, comprising: (A) agar, (B) a water-swellable clay mineral, and (C) carboxymethyl cellulose and / or its salt.

2. The thickening composition according to claim 1, wherein The thickening composition is a microgel having an average particle size of 0.1 to 1000 μm, which is obtained by dissolving the component (A), the component (B), and the component (C) in water or an aqueous component, allowing it to cool to form a gel, and then crushing the gel.

3. The thickening composition according to claim 1, wherein The mass ratio (A / B) of the component (A) to the component (B) is 0.10 or more and 5.00 or less.

4. The thickening composition according to claim 1, wherein The viscosity of the thickening composition is 20000 mPa·s or more and 100000 mPa·s or less.

5. The thickening composition according to claim 1, wherein, The blending amount of the component (A) is 0.5% by mass or more and 5.0% by mass or less based on the total mass of the thickening composition.

6. The thickening composition according to claim 1, wherein The blending amount of the component (B) is 0.5% by mass or more and 5.0% by mass or less based on the total mass of the thickening composition.

7. The thickening composition according to claim 1, wherein The blending amount of the component (C) is 0.01% by mass or more and 1.0% by mass or less based on the total mass of the thickening composition.

8. The thickening composition according to claim 1, wherein, The (B) water-swellable clay mineral is at least one selected from the group consisting of synthetic hectorite, montmorillonite, and saponite.

9. A method for producing a thickening composition, which is a method for producing a thickening composition comprising (A) agar, (B) a water-swellable clay mineral, and (C) carboxymethyl cellulose and / or its salt, wherein the component (A), the component (B), and the component (C) are dissolved in water or an aqueous component, allowed to cool to form a gel, and then crushed to form a microgel having an average particle size of 0.1 to 1000 μm, thereby obtaining a thickening composition.

10. A cosmetic, comprising the thickening composition according to any one of claims 1 to 8.

11. A cosmetic, comprising: (A) agar, (B) a water-swellable clay mineral, and (C) carboxymethyl cellulose and / or its salt.

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