TWI535459B - Cosmetics - Google Patents

Description

Cosmetics

The present invention relates to cosmetics.

Cosmetics using clay minerals and emulsified are known. For example, Patent Document 1 describes an emulsified cosmetic formulated with synthetic bentonite and eucalyptus oil. According to such a configuration, Patent Document 1 does not require the use of a surfactant, and can maintain fine texture, emulsification, stability, flexibility in function, and no dry feeling, etc., as excellent properties of cosmetics.

Further, an emulsified composition containing a clay mineral and a hydrophilic polymer is also known.

Patent Document 2 describes a hydrophilic substrate containing smectite and a water-soluble polymer. According to such a configuration, Patent Document 2 is excellent in ductility and ease of coating, and thus can be used particularly as a gel-like ointment base material, and further has excellent viscosity at pH on an acidic side, and is time-dependent. Features such as less sexual change.

Patent Document 3 describes a hydrophilic polymer containing sodium alginate, a polyacrylic water-absorbent polymer, or the like, and an emulsion of bentonite as a clay mineral. According to such a configuration, Patent Document 3 describes that it is possible to exhibit an effect of causing no skin roughness, allergies, and the like.

Further, Patent Document 4 describes an oil-in-water emulsion composition containing an acidity of a carboxyl group (-COOH group) in a polymer of 10 to 56% by mass. Water soluble polymer. According to such a configuration, Patent Document 4 can provide an oil-in-water emulsion composition which is excellent in emulsion stability and low in irritation even if it does not substantially contain a surfactant.

Further, Patent Document 5 discloses an emulsified composition which contains a liquid oil and a solid oil and water in addition to a clay mineral and a water-soluble polymer. According to such a configuration, Patent Document 5 can provide an emulsion which is long-term stable for cosmetics and has a good feeling of use without using a surfactant, and which does not cause rough skin or rough skin.

Patent Document 1: Japanese Patent Laid-Open No. Hei 3-83909

Patent Document 2: Japanese Patent Laid-Open No. 61-194014

Patent Document 3: Japanese Patent Laid-Open No. Hei 11-188253

Patent Document 4: Japanese Patent Laid-Open Publication No. 2002-191959

Patent Document 5: Japanese Patent Laid-Open Publication No. 2002-253949

The present invention provides a cosmetic comprising the following components (a) to (e): (a) at least one selected from the group consisting of a carboxyvinyl polymer, an acrylic acid-alkyl methacrylate copolymer, and the like. 0.1% by mass or more and 3% by mass or less of the polymer; (b) 0.1% by mass or more and 2% by mass or less of the water-swellable clay mineral; (c) 0.05% by mass or more and 1% by mass or less of the polyvalent metal salt of the fatty acid; (d) 0.1% by mass or more and 5% by mass or less of the higher alcohol having 12 to 22 carbon atoms; (e) water; Ingredient (a) and component (b) are contained in the same continuous phase.

Further, the present invention provides a method of producing a cosmetic comprising: heating a polyvalent metal salt of a component (c), a component (d) a higher alcohol having a carbon number of 12 to 22, to obtain a liquid mixture (mixture B). The step (a) is selected from the group consisting of a carboxyvinyl polymer, an acrylic acid-alkyl methacrylate copolymer, and at least one polymer of the salt, and (b) a water-swellable clay mineral and a component. (e) a step of mixing water to obtain a mixture (mixture A); and a step of mixing the mixture A with the mixture B.

According to the findings of the inventors of the present invention, a cosmetic containing a clay mineral and a hydrophilic polymer can obtain a gel-like cosmetic having a specific liquid property, but it is apparent that the pH stability is poor.

The present inventors have found that in a cosmetic containing a hydrophilic polymer and a clay mineral, by selecting a specific hydrophilic polymer and using a combination of a polyvalent metal salt of a fatty acid and a higher alcohol having a carbon number of 12 to 22, High pH stability over time is obtained. Also, this cosmetic material was found to have a high moisturizing effect.

According to the present invention, a cosmetic containing a specific hydrophilic polymer and a clay mineral can provide high pH stability over time and a high moisturizing effect.

Embodiments of the present invention will be described below.

As the carboxyvinyl polymer or the acrylic acid-alkyl methacrylate copolymer of the component (a) used in the present invention, for example, Carbopol can be suitably used. Commercial products such as 910, 934, 940, 941, 980, 981, 1382, ETD2020 (above, B.F. Goodrich), HIVISWAKO 104, 105 (above, Wako Pure Chemical Industries, Ltd.). The salt of the carboxyvinyl polymer or the acrylic acid-alkyl methacrylate copolymer of the component (a) may, for example, be an ammonium salt, a sodium salt or a potassium salt, preferably a potassium salt.

The polymer of the component (a) used in the present invention is preferably used by being neutralized by an alkaline substance. Examples of the basic substance include amines such as ammonia, quaternary ammonium salts, and alkanolamines; basic amino acids such as arginine; sodium hydroxide, potassium hydroxide, and the like. If potassium hydroxide is used, the cosmetic of the present invention can be used as a stable gel-like solid cosmetic. These alkaline substances may be used alone or in combination, and it is preferred to contain an amount which neutralizes the component (a). Further, the alkaline substance can also be used for pH adjustment of the entire cosmetic material. Specifically, the pH of the cosmetic of the present invention at 25 ° C can be adjusted to 5.5 to 7.5 and further to pH 6 to 7.

In the polymer of the component (a) in the cosmetic of the present invention, the content of the carboxyvinyl polymer and/or the acrylic acid-alkyl methacrylate copolymer which is not neutralized in the form of a salt is obtained by refreshing The viewpoint of the feeling of use is preferably 0.1% by mass or more based on the total amount of the cosmetic, and is preferably 3% by mass or less, more preferably 2.5% by mass or less, still more preferably 2% by mass or less. Component (a) is preferably contained in the same continuous phase as component (b).

The (b) water-swellable clay mineral used in the present invention may, for example, be bentonite, montmorillonite, magnesium bentonite, aluminum bentonite, lithium bentonite, saponite, strontium zinc aluminite, iron swell Bentonite clay such as stone, vermiculite, kaolin, Natural clay such as swellable mica, or such synthetic clay and mixtures of such. Among these, preferred are natural bentonite clay and synthetic bentonite clay, and more preferably bentonite, montmorillonite, magnesium bentonite, and lithium bentonite.

As a commercial product containing montmorillonite, for example, BEN-GEL, BEN-GEL HV, BEN-GEL A, BEN-GEL FW, BEN-GEL31, and BEN-GEL W-100 manufactured by Fengshun Mining Co., Ltd. Kunipia G and Kunipia F, manufactured by KUNIMINE INDUSTRIAL CO., LTD., Western Bond, manufactured by American Colloid, Yellow Stone, manufactured by Dresser Minerals, and the like.

Examples of the commercially available product containing magnesium bentonite include VEEGUM T, VEEGUM HV, VEEGUM F, and VEEGUM K manufactured by Vanderbilt.

Commercial products containing lithium bentonite include, for example, Hectabrite AW, Hectabrite 200, and Benton EW manufactured by American Colliod Co., Ltd., and Macaloid manufactured by National Lead.

Synthetic swelled stones are also available in various commercial products, such as IONITE-H manufactured by Mizusawa Chemical Industry Co., Ltd., SWN, SAN manufactured by CO-OP Chemical Co., Ltd., Laponite manufactured by Laporte Industry Co., Ltd., manufactured by Kunimine Industrial Co., Ltd. Sumecton SA, Laponite XLS, Laponite XLG manufactured by Rockwood.

The component (b) water-swellable clay mineral preferably contains two or more types, and more preferably, the combination type and structure are different. Thereby, the cosmetic of the present invention can be made into Gel-like cosmetic. Specifically, it preferably comprises a water-swellable clay mineral having an octahedral structure and a water-swellable clay mineral having a three-octahedral structure, and more preferably a octahedral type bentonite and a three-octahedral type bentonite. combination. Thereby, the shape retention property can be further improved compared to the viscosity increasing effect. The cosmetic material which has improved the shape retention property has a characteristic of exhibiting a significant drop value in the rheological measurement.

The component (b) water-swellable clay mineral preferably has a shape of a powder, and the powdery component (b) the water-swellable clay mineral has an average particle diameter of preferably 0.02 μm or more, more preferably 0.1 by water. More than μm. On the other hand, it is preferably 2 μm or less, more preferably 1.5 μm or less. Specifically, it is preferably 0.02 μm or more and 2 μm or less, more preferably 0.1 μm or more and 1.5 μm or less. Further, from the viewpoint of obtaining a gel-like cosmetic having high conformality, it is preferred that any of bentonite, montmorillonite, magnesium bentonite, and lithium bentonite belongs to the range of the average particle diameter.

Furthermore, the average particle size of the component (b) water-swellable clay mineral can be used to disperse the component (b) water-swellable clay mineral by 50 times of water (dynamic light scattering particle size distribution measuring device LB-500) The measurement was carried out by the company)). The average particle size is the median diameter.

The content of the component (b) water-swellable clay mineral in the cosmetic of the present invention is preferably 0.1% by mass or more from the viewpoint of the solid cosmetic having a shape retaining property. . When it is 0.2% by mass or more, it becomes a stable gel-like cosmetic, and therefore it is more preferable. Not becoming like water From the viewpoint of obtaining a flexible feeling of use, it is particularly preferably 0.3% by mass or more. The upper limit is preferably 2% by mass or less, and more preferably 1% by mass or less based on the total amount of the cosmetic material, from the viewpoint of the viscosity which is easy to use as a cosmetic material and the feeling of use. It is particularly preferably 0.6% by mass or less from the viewpoint of not being water-like and having a feeling of use that is elastic. Specifically, it is preferably in the range of 0.1% by mass or more and 2% by mass or less, more preferably 0.2% by mass or more and 1% by mass or less, and particularly preferably 0.3% by mass or more and 0.6% by mass or less. The component (b) is preferably contained in the same continuous phase as the component (a), and is preferably contained in the aqueous phase from the viewpoint of shape retention.

The polyvalent metal salt of the fatty acid of the component (c) used in the present invention is preferably a polyvalent metal salt of a saturated or unsaturated fatty acid having a hydroxyl group of 8 to 22 carbon atoms. The carbon number of the polyvalent metal salt having a saturated or unsaturated fatty acid having a hydroxyl group is preferably from 10 to 14, more preferably from 11 to 13. The carbon number of the polyvalent metal salt of a saturated or unsaturated fatty acid having no hydroxyl group is preferably from 10 to 22, more preferably from 12 to 18. In addition, the polyvalent metal salt of the component (c) is preferably one or more selected from the group consisting of salts of calcium, magnesium, zinc, aluminum, and the like. Among these, a salt with zinc or aluminum is preferred, and a salt with zinc is preferred from the viewpoint of availability.

Specific examples of the polyvalent metal salt of the fatty acid of the component (c) used in the present invention include, for example, calcium stearate, zinc stearate, zinc palmitate, zinc myristate, zinc laurate, and hard. Aluminum sulphate, zinc 10-hydroxyundecanoate, among which zinc stearate is preferred. These (c) components can be used individually or in combination of 2 or more types.

The polyvalent metal salt of the fatty acid of the component (c) used in the present invention preferably has a melting point of 150 ° C or less, more preferably a melting point of 120 to 130 ° C. Thereby, the dispersibility at the time of manufacture is excellent, the stability of pH is improved, and the precipitation of the component (c) at the time of emulsification can also be prevented.

The content of the component (c) in the cosmetic of the present invention is preferably 1.0% by mass or less, and more preferably 0.5% by mass or less, based on the total amount of the cosmetic component (c). In addition, from the viewpoint of improving the stability of the pH over time, the lower limit is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, and from the viewpoint of hardness which is easy to apply, it is preferably 0.15% by mass or more. More preferably, it is 0.25 mass% or more. Specifically, it is preferably in the range of 0.05 to 1.0% by mass, more preferably 0.1 to 0.5% by mass, still more preferably 0.15 to 0.5% by mass, still more preferably 0.25 to 0.5% by mass, based on the total amount of the cosmetic. range.

In the cosmetic of the present invention, the mass ratio of the component (c) to the component (b) ((c)/(b)) is preferably 0.02 or more from the viewpoint of further improving the stability over time of pH. More preferably, it is 0.08 or more, further preferably 0.1 or more, and further preferably 1/3 or more. On the other hand, it is preferably 10 or less, more preferably 3.5 or less, still more preferably 1.0 or less. Specifically, it is preferably in the range of 0.02 to 10, more preferably in the range of 0.08 to 3.5, and even more preferably in the range of 0.1 to 1.0.

The component (d) used in the present invention is a higher alcohol having a carbon number of 12 to 22, which may be either liquid or solid at 1 atm. at normal temperature (20 ° C), preferably at 20 ° C. By using a higher alcohol which is liquid at 20 ° C, The cosmetic of the present invention is made into a highly transparent cosmetic. In the present specification, "transparency" means a transmittance measured by a wavelength of 550 nm of 50% or more (including translucency).

The higher alcohol of the component (d) may have a carbon number of 12 to 22, and may be a linear alkyl group or a branched alkyl group, and more preferably an alkyl group having a carbon number of 14 to 22. Higher alcohol. Specific examples thereof include myristyl alcohol, cetyl alcohol, cetearyl alcohol, stearyl alcohol, isostearyl alcohol, hardened rapeseed alcohol, oleyl alcohol, behenyl alcohol, 2-octyldodecane- 1-alcohol.

Commercially available products of the higher alcohol as the component (d) include, for example, KALCOL 220-80, 0898, 1098, and 200 GD (manufactured by Kao); RISONOL 16SP, 18 SP20 SP, 24 SP, cetyl alcohol NX, isostearyl alcohol EX, and stearyl alcohol. NX (manufactured by Advanced Alcohol Industries, Inc.); Eutanol G (manufactured by Cognis Japan Co., Ltd.).

The content of the higher alcohol of the component (d) in the cosmetic of the present invention is preferably 0.1% by mass or more based on the total amount of the cosmetic material (c). More preferably, it is 0.25 mass% or more, and even more preferably 0.5 mass% or more. The upper limit is preferably 5% by mass or less, and is preferably 3% by mass or less, more preferably 1.5% by mass or less, still more preferably 1% by mass or less from the viewpoint of obtaining a feeling of moisturizing use. Specifically, it is preferably in the range of 0.1 to 5% by mass, more preferably 0.25 to 3% by mass, and still more preferably 0.5 to 1% by mass based on the total amount of the cosmetic.

The mass ratio of the component (d) to the component (c) in the cosmetic of the present invention ((d)/(c))) is preferably 0.1 or more, more preferably 0.5 or more, still more preferably 1 or more, and still more preferably 2 or more. On the other hand, it is preferably 100 or less, more preferably 20 or less, still more preferably 15 or less, and still more preferably 5 or less. Specifically, it is preferably in the range of 0.1 to 100, more preferably in the range of 0.5 to 20, and even more preferably in the range of 2 to 15.

In the cosmetic of the present invention, ion-exchanged water, distilled water or the like can be used as the water of the component (e). The content of the water of the component (e) is preferably 70% by mass or more, more preferably 75% by mass or more, still more preferably 80% by mass or more, more preferably 95% by mass or less, and more preferably 90% by mass based on the total amount of the cosmetic material. %the following.

The cosmetic of the present invention may further contain the component (f) a polar oil. Thereby, it is possible to surely suppress the precipitation of the component (d) having a carbon number of 12 to 22 in the cosmetic of the present invention.

As the component (f) polar oil, for example, an ester oil can be used. Specific examples thereof include isopropyl myristate, cetyl octanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, and myristic acid. Oxime ester, decyl oleate, hexyl decyl dimethyl octanoate, cetyl lactate, myristyl lactate, lauryl acetate, isocetyl stearate, isostearic acid isocetyl ester, 12- Cholesterol hydroxystearate, ethylene glycol di-2-ethylhexanoate, fatty acid ester of dipentaerythritol, N-alkyl glycol monoisostearate, neopentyl glycol dicaprate, malic acid II Isostearyl ester, di-2-heptyldecanoic acid glyceride, trimethylolpropane triethyl 2-hexanoate, trimethylolpropane triisostearate, glyceryl tricaprylate, triisostearic acid Glyceryl ester, trimethylolpropane triisostearate, cetyl 2-ethylhexanoate, tetrakis-2-ethylhexanoate pentaerythritol, triethyl 2-ethylhexanoate Ester, 2-ethylhexyl palmitate, glyceryl trimyristate, tris-2-heptyldecanoate, castor oil fatty acid methyl ester, oleic acid oil ester, acetyl glyceride, soft fat Acid 2-heptylundecyl ester, diisobutyl adipate, N-lauryl-L-glutamic acid-2-octyldodecanate, di-2-heptyldecyl adipate, Ethyl laurate, di-2-ethylhexyl sebacate, 2-hexyl decyl myristate, 2-hexyl decyl palmitate, 2-hexyl decyl adipate, diisophthalic acid diiso Propyl ester, 2-ethylhexyl succinate, triethyl citrate, and the like. Among them, an ester oil which is liquid at 20 ° C is preferred.

In the cosmetic of the present invention, the content of the component (f) polar oil is preferably 0.1% by mass or more, more preferably 0.25 by mass, from the viewpoint of improving the solubility and dispersibility of the higher alcohol. %the above. On the other hand, it is preferably 10% by mass or less, more preferably 5% by mass or less, and still more preferably 3% by mass or less based on the total amount of the cosmetic. Specifically, it is preferably in the range of 0.1 to 10% by mass, more preferably 0.1 to 5% by mass, even more preferably 0.25 to 3% by mass based on the total amount of the cosmetic.

In the cosmetic of the present invention, the mass ratio of the component (f) to the total amount of the component (c) and the component (d) ((f) / ((c) + (d)))) is preferably 0.02 to 20 More preferably 0.04~5, and even better 0.05~0.5. In particular, when a higher alcohol which is liquid at 20 ° C is used as the component (d), the component (f) polar oil may not be contained.

Further, the cosmetic of the present invention may further contain any of the component (g) polymer emulsion or wax emulsion, or a polymer emulsion and a wax emulsion. Thereby, it is possible to make a cosmetic material which is more moisturizing. Also, the emulsion of the component (g) is flat The average particle diameter is preferably 0.05 μm or more, more preferably 0.1 μm or more, and on the other hand, it is preferably 10 μm or less, more preferably 7 μm or less. The average particle diameter of the emulsion of the component (g) is measured by using a dynamic light scattering type particle size distribution measuring apparatus (for example, LB-500 manufactured by Horiba, Ltd.), and the medium diameter is measured by diluting with water to 10 mass times.

As the polymer emulsion of the component (g), for example, DAITOSOL 5000 SJ, 5000 AD, 5000 STY (manufactured by Daito Kasei Kogyo Co., Ltd.); JURYMER SEK-301, EM-125, 312, 416, ET-410 (manufactured by Toagosei Co., Ltd.); DERMACRYL 79 can be used; , AQF, C, YODOSOL GH34F, GH810F, GH41F, GH952 (made by Akzo Nobel Co., Ltd.).

As the wax emulsion of the component (g), for example, EMUSTAR-0001, 1155, 0135, 0136, 0443, 0436, 0454, 0615, 0413, 5140, 5555, 5501, 5280, AQADISPA7415 (manufactured by Nippon Seiko Co., Ltd.), or the like can be used.

In the cosmetic of the present invention, the content of the component (g) is preferably 0.1% by mass or more, and more preferably 0.25% by mass or more based on the total amount of the cosmetic material from the viewpoint of enhancing the moisturizing effect. In addition, from the viewpoint of the improvement of the moisturizing effect, it is preferably 10% by mass or less based on the total amount of the cosmetic material, and is preferably 5% by mass or less, and more preferably 3% by mass or less from the viewpoint of stability. Specifically, it is preferably in the range of 0.1 to 10% by mass, more preferably 0.1 to 5% by mass, even more preferably 0.25 to 3% by mass based on the total amount of the cosmetic.

Further, from the viewpoint of adjusting the touch at the time of use, a polyoxygenated oil may be contained. As a polyoxygenated oil, a user of a general cosmetic can be used, specifically For example, a chain polyoxyalkylene such as dimethyl polyoxyalkylene or methylphenyl polyoxyalkylene; octylmethylcyclotetradecyloxy, decamethylcyclopentaoxane, dodecamethylcyclohexane a cyclic polyoxyalkylene such as a decane; a polyfluorene oxide forming a 3-dimensional mesh structure; a polyoxyxene rubber; an amine modified polyoxyalkylene, an alkyl modified polyoxyalkylene, a fluorine modified poly A polyoxyalkylene such as a oxane; preferably a cyclic polyoxane. These polyoxygenated oils may be contained in an amount of 0.1 to 10% by mass, more preferably 0.5 to 5% by mass.

Further, the cosmetic of the present invention may contain, in addition to the above components, components used in general cosmetics, such as water-soluble polymers, surfactants, sterols, powders, and lower alcohols other than the above. , anti-inflammatory agents, singlet oxygen elimination agents or antioxidants, film forming agents, inorganic salts, chimeric agents, preservatives, pigments, whitening ingredients, cell activators, UV absorbers, vitamins, sebum inhibitors, sebum secretion promotion Agents, spices, etc.

Next, an example of a method of producing the cosmetic of the present invention will be described.

The cosmetic of the present invention is produced by a production method comprising the steps of: heating a polyvalent metal salt of the component (c) fatty acid and a higher alcohol having a carbon number of 12 to 22 of the component (d) to obtain a liquid mixture ( a step of the mixture B); the component (a) is selected from the group consisting of a carboxyvinyl polymer, an acrylic acid-alkyl methacrylate copolymer, and at least one polymer of the salt, and the component (b) water-swellable clay The step of mixing the mineral with the component (e) water to obtain a mixture (mixture A); and the step of mixing the mixture A with the mixture B.

Mixture A is prepared by dissolving component (a) carboxyvinyl polymer or acrylic acid-alkyl methacrylate copolymer, component (b) water-swellable clay mineral in component (e) In all or part of the water (mixture A). At this time, a basic substance may be added, and the carboxyvinyl polymer or the acrylic acid-alkyl methacrylate copolymer may be neutralized to form a salt, or the pH of the mixture A may be adjusted. Further, a carboxyvinyl polymer and an acrylic acid-alkyl methacrylate copolymer may be used together.

The mixture B is prepared by separately heating and dissolving the polyvalent metal salt of the component (c) fatty acid and the higher alcohol having the carbon number of 12 to 22 of the component (c) to prepare a liquid mixture (mixture B). In this case, it is preferred to heat the component (c) by melting or more, and specifically, it is preferably heated to 100 ° C or higher.

Thereafter, the mixture A and the mixture B were mixed. In this case, it is more preferable to carry out mixing while heating at 80 to 90 °C.

Here, in the case of using the plural component (b), the component (b) water-swellable clay mineral different from the component (b) may be mixed into the mixture B separately from the above-mentioned mixture A. When the mixture B and the component (b) are mixed, it is preferred to carry out heating and mixing, for example, heating to 80 to 90 ° C for mixing.

Further, the mixture B may further contain the component (f) polar oil. Further, after mixing the mixture A and the mixture B, the component (g) polymer emulsion or wax emulsion may be mixed. In order to increase the mixing efficiency or adjust the composition ratio, one part of the component (e) water may be mixed with other components, or an alkaline substance may be added to adjust the pH. Thus, the cosmetic of the present invention can be produced.

The cosmetic of the present invention can be manufactured into any dosage form, or is mainly made up of skin care products such as lotion, lotion, cream, cosmetic oil, beauty liquid, etc. It is manufactured as a cosmetic, bathing agent, etc. for foundations and lipsticks. Among them, it is preferred to use it as a skin care product.

The cosmetic of the present invention is preferably an aqueous or water-based cosmetic, particularly preferably an oil-based cosmetic.

The cosmetic of the present invention may be in the form of a liquid or a solid, and is preferably a solid, more preferably a gel-like solid from the viewpoint of imparting a feeling of use for moisturizing. The solid is a fluid which does not have fluidity when 150 g is placed in a PP container and left at 25 ° C for 5 minutes, and then tilted at an angle of 60 ° for 1 minute. By setting the viscosity of the cosmetic of the present invention to 10,000 to 180,000 mPa ‧ at 25 ° C, a gel-like solid cosmetic can be obtained. Further, the viscosity of the cosmetic of the present invention is a rotational viscometer (for example, a B8R viscometer manufactured by Toki Sangyo Co., Ltd., a spiral type), and the viscosity is in the range of 10,000 to 100,000 mPa ‧ at a temperature of 25 ° C, The rotor axis TB, the rotation speed of 5 rpm, and 1 minute were measured. When the viscosity range was 100,000 to 180,000 mPa·s, the measurement was performed at a temperature of 25 ° C, a rotor shaft TC, a rotation speed of 5 rpm, and 1 minute.

In the cosmetic of the present invention, it is preferred to adjust the pH after the production to 5.5 to 7.5, more preferably 6 to 7, and to make the pH fluctuation after the production and immediately after the production to be ±0.5. Further, the pH of the cosmetic of the present invention is measured directly at 25 ° C as it is.

Although the embodiments of the present invention have been described below, these are merely examples of the present invention, and various configurations other than the above may be employed.

<1>

A cosmetic comprising the following components (a) to (e): (a) a polymer selected from the group consisting of a carboxyvinyl polymer, an acrylic acid-alkyl methacrylate copolymer, and a salt thereof; a water-swellable clay mineral; (c) a polyvalent metal salt of a fatty acid; (d) a higher alcohol having a carbon number of 12 to 22; (e) water.

<2>

The cosmetic of the above <1>, wherein the component (b) water-swellable clay mineral is a natural clay selected from the group consisting of bentonite clay, vermiculite, halloysite, or swellable mica, or the synthetic clay thereof. The obtained ones can be used alone or in combination of two or more.

<3>

The cosmetic of the above <1> or <2>, which contains two or more of the above (b) water-swellable clay minerals.

<4>

The cosmetic according to any one of the items <1> to <3> further comprising the component (f) a polar oil.

<5>

The cosmetic according to any one of the above items <1> to <4> wherein the mass ratio of the component (c) to the component (d) (component (d) / component (c)) is 0.1 to 100, preferably 0.5. ~20, better 2~15.

<6>

The cosmetic of any one of the above-mentioned items (1), wherein the component (d) having a carbon number of 12 to 22 is a liquid at 20 ° C under an atmospheric pressure.

<7>

The cosmetic of any one of the above-mentioned items (1), which further comprises the component (g) polymer emulsion or wax emulsion, or the polymer emulsion and the wax emulsion, and the average particle of the emulsion of the above component (g) The diameter is 0.05~10μm.

<8>

The cosmetic of any one of the above-mentioned items (1), wherein the polyvalent metal salt of the component (c) fatty acid has a melting point of 150 ° C or less, preferably 120 to 130 ° C.

<9>

The cosmetic of any one of the above-mentioned <1> to <8>, wherein the content of the component (a) is 0.1 to 3% by mass, preferably 0.1 to 2.5% by mass, more preferably the total amount of the cosmetic material. A range of 0.1 to 2% by mass.

<10>

The cosmetic of any one of the above-mentioned items (1), wherein the content of the component (b) is 0.1% by mass or more, preferably 0.2% by mass or more, and 2% by mass based on the total amount of the cosmetic. % or less, preferably 1% by mass or less, more preferably 0.3 to 0.6% by mass.

<11>

The cosmetic of any one of the above-mentioned items (1), wherein the content of the component (c) is 1.0% by mass or less, preferably 0.5% based on the total amount of the cosmetic. The mass% or less is 0.05% by mass or more, preferably 0.1% by mass or more, more preferably 0.15% by mass or more, still more preferably 0.25 % by mass or more, and it is 0.05 to 1.0% by mass, preferably 0.1 to 0.5% by mass, more preferably Preferably, it is 0.15 to 0.5% by mass, and more preferably 0.25 to 0.5% by mass.

<12>

The cosmetic of any one of the above-mentioned items (1), wherein the content of the component (d) is 0.1% by mass or more, preferably 0.25% by mass or more, more preferably 0.5% by mass based on the total amount of the cosmetic. % or more is 5% by mass or less, preferably 3% by mass or less, more preferably 1.5% by mass or less, still more preferably 1% by mass or less, and is 0.1 to 5% by mass, preferably 0.25 to 3% by mass, more preferably 0.5 to 1% by mass.

<13>

The cosmetic of any one of the above-mentioned items (1), wherein the content of the component (e) is 70% by mass or more, preferably 80 to 95% by mass based on the total amount of the cosmetic.

<14>

The cosmetic of any one of the above-mentioned items (1), wherein the content of the component (f) is 0.1 to 10% by mass, preferably 0.1 to 5% by mass, more preferably the total amount of the cosmetic material. 0.25~3 mass%.

<15>

The cosmetic of any one of the above-mentioned items (1), wherein the content of the component (g) is 0.1 to 10% by mass, preferably 0.1 to 5, based on the total amount of the cosmetic. % by mass, more preferably 0.25 to 3% by mass.

<16>

The cosmetic (a) is an ammonium salt, a sodium salt or a potassium salt, preferably a potassium salt, and may be used singly or in combination of two or more.

<17>

The cosmetic according to any one of the above items <1> to <16> wherein the component (b) is bentonite, montmorillonite, magnesium bentonite, aluminum bentonite, lithium bentonite, saponin, and strontium Natural clay made of sodium Zn-alumina, bentonite of iron bentonite, natural clay such as vermiculite, kaolin, swellable mica, or the like, or a mixture of such clay, preferably natural and synthetic bentonite clay More preferably, it is bentonite, montmorillonite, magnesium bentonite, and lithium bentonite, and they may be used alone or in combination of two or more.

<18>

The cosmetic of any one of the above-mentioned items (1), wherein the average particle diameter of the component (b) is in the range of 0.02 to 2 μm, preferably 0.1 to 1.5 μm when dispersed in water. .

<19>

The cosmetic of any one of the above-mentioned items (1), wherein the component (c) is a polyvalent metal salt of a saturated or unsaturated fatty acid having a hydroxyl group of 8 to 22 carbon atoms, preferably a polyvalent metal salt of a saturated or unsaturated fatty acid having 10 to 22 carbon atoms, more preferably a polyvalent metal having a saturated or unsaturated fatty acid having 12 to 18 carbon atoms The salt may be used singly or in combination of two or more.

<20>

The cosmetic of any one of the above-mentioned items (1), wherein the salt of the component (c) is calcium, magnesium, zinc or aluminum, preferably zinc or aluminum, more preferably zinc, which may be used alone. Use two or more types in combination.

<21>

The cosmetic according to any one of the above-mentioned items, wherein the component (c) is calcium stearate, zinc stearate, zinc palmitate, zinc myristate, zinc laurate, The aluminum stearate and the zinc 10-hydroxyundecanoate are preferably zinc stearate, and they may be used alone or in combination of two or more.

<22>

The cosmetic according to any one of the above-mentioned items, wherein the component (d) has an alkyl group having a carbon number of 12 to 22, and the alkyl group is a linear alkyl group or a branched alkyl group. Preferably, the alkyl group has a carbon number of 14 to 22, more preferably myristyl alcohol, cetyl alcohol, cetearyl alcohol, stearyl alcohol, isostearyl alcohol, hardened rapeseed oil, oleyl alcohol, and Decadiol and 2-octyldodecan-1-ol may be used singly or in combination of two or more.

<23>

The cosmetic according to any one of the items <1> to <22> wherein the component (f) is an ester oil, preferably isopropyl myristate, cetyl octanoate, octyl myristate Diester, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyl dimethyl octanoate, cetyl lactic acid Ester, myristyl lactate, lauryl acetate, isocetyl stearate, isocetyl isostearate, cholesterol ester of 12-hydroxystearate, ethylene glycol di-2-ethylhexanoate, two Pentaerythritol fatty acid ester, N-alkyl glycol monoisostearate, neopentyl glycol dicaprate, diisostearyl malate, di-2-heptyldecanoic acid glyceride, 3-2 Trimethylolpropane ethylhexanoate, trimethylolpropane triisostearate, glyceryl tricaprylate, glyceryl triisostearate, trimethylolpropane triisostearate, cetyl 2 Ethyl hexanoate, pentaerythritol tetraethyl 2-hexanoate, glyceryl triethyl 2-ethylhexanoate, 2-ethylhexyl palmitate, glyceryl trimyristate, tri- 2-heptyl eleven Acid glyceride, castor oil fatty acid methyl ester, oleic acid oil ester, acetyl glyceride, 2-heptyl undecyl palmitate, diisobutyl adipate, N-lauroyl-L-glutamine Acid-2-octyldodecanate, di-2-heptyldecyl adipate, ethyl laurate, di-2-ethylhexyl sebacate, 2-hexyldecyl myristate, 2-hexyldecyl palmitate, 2-hexyldecyl adipate, diisopropyl sebacate, a 2-ethylhexyl crotonate and triethyl citrate are particularly preferred as the ester oil which is liquid at 20 ° C, and may be used singly or in combination of two or more.

<24>

The cosmetic of any one of the above <1> to <23>, wherein the mass ratio of the component (f) to the total of the component (c) and the component (d) is (f)/((c)+ (d))) is 0.02 to 20, preferably 0.04 to 5, more preferably 0.05 to 0.5.

<25>

The cosmetic according to any one of <1> to <24> wherein the above component (g) The emulsion has an average particle diameter of 0.1 to 10 μm.

<26>

The cosmetic according to any one of the above items <1> to <25>, wherein the cosmetic material may contain 0.1 to 10% by mass, preferably 0.5 to 5% by mass.

<27>

The cosmetic of any one of the above-mentioned items <1> to <26>, wherein a cosmetic cosmetic or a bathing agent which is a lotion, an emulsion, a cream, a cosmetic oil, a cosmetic liquid, a foundation, a lipstick, or the like is preferably used. For use as a skin care product.

<28>

The cosmetic of any one of the above-mentioned items <1> to <27>, wherein it is a liquid or a solid, preferably a solid, more preferably a gelatinous solid.

<29>

The method for producing a cosmetic according to any one of the above items, comprising: a polyvalent metal salt of the component (c) fatty acid; and (d) a higher alcohol having a carbon number of 12 to 22, which is heated and dissolved. a step of obtaining a liquid mixture (mixture B); the component (a) is selected from the group consisting of a carboxyvinyl polymer, an acrylic acid-alkyl methacrylate copolymer, and at least one polymer of the salt, component (b) a step of mixing a water-swellable clay mineral with the component (e) water to obtain a mixture (mixture A); and a step of mixing the mixture A with the mixture B.

<30>

A cosmetic method of applying the cosmetic according to any one of the above <1> to <28> to the skin.

<31>

The use of the cosmetic of any one of the above <1> to <28> for the manufacture of a skin cosmetic for application to the skin.

<32>

The use of the cosmetic of any one of the above <1> to <28> for the manufacture of a skin care product for application to the skin.

(Example) (Examples 1 to 6 and Comparative Example 1)

The cosmetics using the compositions of the components (1) to (17) shown in Table 1 were prepared and evaluated as follows. The results are shown in Table 1.

Specifically, (2) and (3) are dissolved in 45 parts by mass of (17) (relative to the total composition), and (5) is separately dissolved in 15% by mass of (17) ( Relative to the total composition). Further, (6) was dissolved in 5 parts by mass of (17) (relative to the total composition). These (2) to (3), (5) to (6) were kneaded by a biaxial planetary mixer (TRIMISIS MIX fmodel 03, manufactured by PRIMIX Co., Ltd.) at 25 ° C for 10 minutes to obtain a gel. . During this period, the mixture of (1) and (7) to (9) was heated and dissolved at 130 ° C, and a mixture of (4) and (10) to (13) was added, and the addition was carried out at 80 to 90 ° C. The mixed product was heated and mixed with a disperser at 3000 rpm to form an emulsion. The obtained emulsion was added to the above-mentioned gel which was kneaded and kneaded in a biaxial planetary mixer for 10 minutes. Thereafter, (14) and (15) were dissolved in 5 parts by mass of (17) (relative to the total composition) and (16), and kneaded by a biaxial planetary mixer for 10 minutes. The kneaded material was placed in a container to prepare a product.

Further, the average particle diameter of (16) is measured as follows.

The (16) was diluted with ion-exchanged water to 10 mass times, and placed in a colorimetric tank (material: PMMA, size: 10×10×45H (mm)), and a dynamic light scattering type particle size distribution measuring apparatus LB-500 (堀场制所) was used. The measurement was carried out by a company limited by the company, and the median diameter was taken as the average particle diameter.

<evaluation> pH

The pH immediately after the production of each of the examples or the comparative examples and the pH after storage for one month at 25 ° C were corrected using a pH meter F-52 manufactured by HORIBA, and corrected with a citrate standard solution at 25 ° C. The measurement was carried out.

2. Viscosity

The measurement was carried out at 25 ° C using a rotary viscometer (Rotor T-B, rotating speed: 5 rpm, 1 minute, manufactured by Toki Sangyo Co., Ltd.) of a B8R type spiral table.

3. Penetration rate

The measurement was carried out according to the UV-visible spectrophotometer UV-1800 (manufactured by Shimadzu Corporation) and the absorbance at a wavelength of 550 nm (quartz cell, optical path length 0.05 mm, type: AB10-UV-0.5 (manufactured by GL Sciences Co., Ltd.)).

4. Coarse grain

Will be made immediately after the makeup, by 10 female inspectors, each will When 0.05 to 0.1 g of the cosmetic of each of the examples or the comparative examples was applied to the front side of the arm after washing, the texture of the coarse grain on the skin at the time of application was evaluated. The evaluation is set to 2 points when there is no coarse graininess, 1 point when there is no coarse graininess, 0 point for normal, and -1 point when there is a slight graininess, and it is set to have a coarse grain feeling. For -2 points, and find the average number of points of the inspector.

5. Water evapotranspiration inhibition rate

In a 40 mL glass bottle (Pierce Vial CV-400 (manufactured by AS ONE); a hole having a diameter of 17.3 mm on the cover), a 5C quantitative filter paper (ADVANTEC FILTER PAPER 5C) was placed on the bottle. As a cover. Water, the cosmetic of each of the examples or the comparative examples was applied to a portion of the filter paper which was suspended, and dried for a day and night. Thereafter, 25 mL of purified water was placed in the bottle, and the mixture was allowed to stand at 20 ° C and a humidity of 40% for 3 days. The mass before storage is m1 (g), the mass after 3 days is m2 (g), and the amount of water evapotranspiration when the filter paper is coated with purified water is W (g), and is applied to the filter paper. The moisture evapotranspiration amount in the case of the cosmetic of the example or the comparative example was S (g), and the moisture evapotranspiration inhibition rate (%) was obtained by the following formula.

Water evapotranspiration W(g)=Wm1-Wm2

Water evapotranspiration S(g)=Sm1-Sm2

Water evapotranspiration inhibition rate (%) = {(W(g) - S(g)) / W(g)} x100

6. Shape retention

For the shape retention of the cosmetic materials of the respective examples and comparative examples, about 1 g was taken from the container by a spatula to the hands, and after standing for 3 minutes, the evaluation was performed according to the following evaluation criteria. Refers to the touch when pressed.

×: It does not return to its original shape when pressed with a finger.

△: It will return to its original shape when it is slightly weak.

○: Even if a little force is applied, it will return to its original shape.

(Examples 7 to 21, Comparative Examples 2 to 6)

The cosmetics using the compositions of the components (1) to (39) shown in Tables 2 to 4 were prepared and evaluated in the same manner as in the above examples (except for evaluation of viscosity and coarse grain feeling). The results are shown in Tables 2 to 4.

Specifically, (1) to (3) are dissolved in 45 parts by mass of (39) (relative to the total composition), and (4) and (5) are dissolved in (37) 15 respectively. % by mass (relative to the total composition). Further, (6) was dissolved in 5 parts by mass of (39) (relative to the total composition). These (1) to (6) were kneaded by a biaxial planetary mixer (manufactured by PRIMIX Co., Ltd., T.K. HIVIS MIX fmodel 03 type) at 25 ° C for 10 minutes to obtain a gel. During this period, (13) to (19) and (7) to (11) and (12) are heated and dissolved at 130 ° C, and (20) to (27) are added, and 80 to 90 are added. The mixture was heated and mixed at ° C, and mixed with a disperser at 3000 rpm for 10 minutes to form an emulsion. The obtained emulsion was added to the above-mentioned gel which was kneaded and kneaded in a biaxial planetary mixer for 10 minutes. Thereafter, (28) and (29) are dissolved in 5 parts by mass (relative to the total composition) of (39) and (30) to (38), and kneaded by a biaxial planetary mixer. minute. The kneaded material was placed in a container to prepare a product.

Further, the average particle diameters of (30) to (38) were measured in the same manner as in the above examples.

The pH of the cosmetic materials of Examples 1 to 21 was excellent in stability over time, and the difference between the pH immediately after the production and the pH after one month was 0.5 or less. On the other hand, the cosmetic materials of Comparative Examples 1 to 5 were immediately after the manufacture. The difference from the pH after 1 month exceeded 0.5. Further, the pH of the cosmetics of Examples 1 to 21 was pH 8 or less after one month of production, whereas the pH of the cosmetics of Comparative Examples 1 to 5 after one month of manufacture was more than 8.

Further, the cosmetics of Examples 1 to 21 all had a moisture transpiration inhibition rate of more than 10%, and had high moisture retention.

Claims (19)

A cosmetic comprising the following components (a) to (e): (a) at least one polymer selected from the group consisting of a carboxyvinyl polymer, an acrylic acid-alkyl methacrylate copolymer, and the like 0.1% by mass or more and 2% by mass or less; (b) 0.1% by mass or more and 1% by mass or less of the water-swellable clay mineral; (c) a fatty acid salt having 12 to 18 carbon atoms and one or two selected from the group consisting of zinc and aluminum 0.1% or more and 0.5% by mass or less of the above polyvalent metal salt; (d) 0.5% by mass or more and 3% by mass or less of the higher alcohol having 14 to 22 carbon atoms; (e) water; component (a) and component ( b) is contained in the same continuous phase. The cosmetic of claim 1, wherein the component (b) water-swellable clay mineral is a natural clay selected from the group consisting of bentonite clay, vermiculite, halloysite, or swellable mica, or the like The winner of synthetic clay. The cosmetic according to claim 1 or 2, which contains two or more of the above (b) water-swellable clay minerals. The cosmetic of claim 1 or 2, further comprising a component (f) a polar oil. The cosmetic material of claim 1 or 2, wherein the mass ratio of the component (c) to the component (d) (component (d) / component (c)) is 0.1 to 100. The cosmetic according to claim 1 or 2, wherein the component (d) having a carbon number of 14 to 22 is a liquid at 20 ° C and 1 atm. The cosmetic according to claim 1 or 2, further comprising a component (g) of a polymer emulsion or a wax emulsion, wherein the emulsion of the component (g) has an average particle diameter of 0.05 to 10 μm. The cosmetic according to claim 1 or 2, further comprising a component (g) of a polymer emulsion and a wax emulsion, wherein the emulsion of the component (g) has an average particle diameter of 0.05 to 10 μm. The cosmetic of claim 1 or 2, wherein the polyvalent metal salt of the component (c) fatty acid has a melting point of 150 ° C or less. A method for producing a cosmetic comprising: a component (c) a fatty acid salt having 12 to 18 carbon atoms and a polyvalent metal salt selected from one or more of zinc and aluminum, and a component (d) carbon number 14 a step of heating a higher alcohol of ~22 to obtain a liquid mixture (mixture B); and component (a) is selected from the group consisting of a carboxyvinyl polymer, an acrylic acid-alkyl methacrylate copolymer, and at least the salts thereof A step of mixing a mixture of the polymer and the component (b) the water-swellable clay mineral with the component (e) water to obtain a mixture (mixture A); and mixing the mixture A with the mixture B. The method for producing a cosmetic according to claim 10, wherein in the step of obtaining the liquid mixture, heating to a melting point or higher of a polyvalent metal salt of the component (c) fatty acid causes the component (c) The polyvalent metal salt of the fatty acid is dissolved in the higher alcohol having the carbon number of 14 to 22 in the above component (d). For example, the cosmetic material of claim 1 or 2, wherein the above-mentioned The water-swelling clay mineral of sub-paragraph (b) contains synthetic bentonite clay, or natural bentonite clay, or natural bentonite clay and synthetic bentonite clay. The cosmetic of claim 1 or 2, wherein the cosmetic is transparent or translucent. The cosmetic according to claim 1 or 2, wherein the cosmetic is an oil-in-water emulsion. The cosmetic of claim 1 or 2, wherein the cosmetic is a skin care product. A cosmetic according to claim 1 or 2, which does not contain an emulsified crosslinked alkane elastomer. A method of using a cosmetic according to any one of claims 1 to 9 and 12 to 16 is applied to the skin. The use of a cosmetic according to any one of claims 1 to 9 and 12 to 16 for the manufacture of a skin cosmetic for application to the skin. The use of a cosmetic according to any one of claims 1 to 9 and 12 to 16 for the manufacture of a skin care product for application to the skin.