JP2012241006A - Oil-in-water type emulsion makeup cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an oil-in-water type emulsion makeup cosmetic which has no generation of smearing and stickiness though it contains a polysaccharide thickening agent such as xanthan gum, has excellent sense of use, and has excellent handling properties.SOLUTION: The oil-in-water type emulsion makeup cosmetic contains: (A) a crosspolymer including 2-acrylamide-2-methylpropanesulfonic acid or its salt, (meth)acrylic acid and/or its ester and N, N-dimethyl acrylamide as constituent units; (B) a polysaccharide thickening agent; and (C) powder. The containing mass ratio (A:B) between the components (A) and (B) satisfies (1:3) to (3:1).

Description

  The present invention relates to an oil-in-water emulsified makeup cosmetic.

  In order to improve the emulsification stability of the emulsified composition, particularly an emulsified composition for a skin external preparation, a thickener and a gelling agent are widely used. Among them, xanthan gum is widely used for cosmetics and foods as a natural water-soluble thickener and emulsion stabilizer.

  Xanthan gum is produced by fermenting carbohydrates using Xanthomonas campestris and purifying polysaccharides accumulated outside the cells, and is a sodium of D-glucose, D-mannose and D-glucuronic acid. , Consisting of potassium and calcium salts. Moreover, although the molecular weight is about 2 million, there is also a report of 13 million to 50 million. Compared with the molecular weight of other general natural water-soluble thickeners, the molecular weight is 10 to 100 times larger, and this extremely large molecular weight exhibits an excellent thickening effect and emulsion stabilization effect.

  However, when polysaccharides such as xanthan gum are used as thickeners, the stability in a system containing both pharmaceutical ingredients and various salts is excellent, but there is a problem in terms of usability as a cosmetic such as a sticky feeling. was there.

  On the other hand, the hydrophobic cross-linked polyacrylic copolymer is excellent in emulsion stability in a system in which a drug component and various salts are blended simultaneously (see Patent Document 1).

International Publication No. 08/087326 Pamphlet

However, since the hydrophobic cross-linked polyacrylic copolymer has elasticity, it has been found that a cosmetic containing a high concentration of this has a problem in usability and handling during production.
Accordingly, an object of the present invention is to obtain an oil-in-water emulsified makeup cosmetic that is excellent in feeling of use and excellent in handling during production, despite the fact that it contains polysaccharides such as xanthan gum, and does not cause stickiness or stickiness. There is.

  In view of the above circumstances, as a result of intensive studies, the present inventor used a hydrophobic cross-linked polyacrylic copolymer and a polysaccharide thickener at a certain ratio, and blended powder into this. The present inventors have found that an oil-in-water emulsified makeup cosmetic with high stability, high usability and excellent handling during production can be obtained, and the present invention has been completed.

  That is, the present invention includes (A) 2-acrylamido-2-methylpropanesulfonic acid or a salt thereof, (meth) acrylic acid and / or an ester thereof, and a cross polymer containing N, N-dimethylacrylamide as a structural unit; (B) It contains a polysaccharide thickener and (C) powder, and the content ratio (A: B) of components (A) and (B) is 1: 3 to 3: 1. An oil-in-water emulsified makeup cosmetic characterized by the above is provided.

  The oil-in-water emulsified makeup cosmetic of the present invention is particularly excellent in storage stability and feel, and has good stickiness, non-stickiness, refreshing feeling, long-lasting makeup, gloss, moisture retention, safety, handling during production Good properties.

The water-soluble thickener used in the present invention is composed of (A) 2-acrylamido-2-methylpropanesulfonic acid or a salt thereof, (meth) acrylic acid and / or an ester thereof, and N, N-dimethylacrylamide. As a cross polymer. Here, examples of the (meth) acrylic acid ester include alkyl (meth) acrylate and alkylpolyoxyethylene (meth) acrylate. Examples of the alkyl (meth) acrylate include C _6-20 alkyl (meth) acrylate, and lauryl (meth) acrylate, myristyl (meth) acrylate, palmityl (meth) acrylate, and the like are preferable, and lauryl (meth) acrylate is more preferable. . _{Examples of the} alkyl polyoxyethylene (meth) acrylate include C _6-20 alkyl polyoxyethylene (meth) acrylate, such as lauryl polyoxyethylene (meth) acrylate, myristyl polyoxyethylene (meth) acrylate, and palmityl poly. Oxyethylene (meth) acrylate and the like are preferable, and lauryl tetraoxyethylene (meth) acrylate is more preferable. In addition, 2 or more types of ester of (meth) acrylic acid may be contained. The salt of 2-acrylamido-2-methylpropanesulfonic acid is preferably an ammonium salt.

Examples of more preferred crosspolymers include 2-acrylamido-2-methylpropanesulfonic acid or a salt thereof, C _6-20 alkyl (meth) acrylate and / or C _6-20 alkyl polyoxyethylene (meth) acrylate, And a copolymer with N, N-dimethylacrylamide.
As a specific cross polymer, (2-methyl-2-[(1-oxo-2-propenyl) amino] -1-propanesulfonic acid ammonium / N, N-dimethylacrylamide / lauryl tetraoxyethylene (meth) acrylate ) Crosspolymer, (2-methyl-2-[(1-oxo-2-propenyl) amino] -1-propanesulfonic acid ammonium / N, N-dimethylacrylamide / lauryl (meth) acrylate / lauryl tetraoxyethylene (meta ) Acrylate) Cross polymer etc. are mentioned. As an example of a commercially available product, SepiMAX ZEN manufactured by SEPPIC can be mentioned.

  These water-soluble thickeners include 2-acrylamido-2-methylpropanesulfonic acid or a salt thereof, one or more (meth) acrylic acid and / or an ester thereof, and N, N-dimethylacrylamide. It can be obtained by copolymerization.

  The content of the (A) water-soluble thickener in the oil-in-water emulsified makeup cosmetic of the present invention is preferably 0.1 to 5% by mass, preferably 0.15 to 3% by mass based on the total amount of the makeup cosmetic. % Is more preferable, and 0.5 to 2% by mass is more preferable. (A) By making a water-soluble thickener into this range, emulsion stability is also favorable and stickiness does not arise.

The polysaccharide thickener (B) used in the present invention includes xanthan gum, sclerotium gum, gum arabic, alkaligenes-producing polysaccharide, hydroxyethylcellulose, guar gum, carrageenan, hyaluronic acid, tuberose polysaccharide, white jellyfish polysaccharide, locust Bean gum, oxidized cellulose and the like can be suitably used. These may be used alone or in combination of two or more.
Among these polysaccharide thickeners, xanthan gum, sclerotium gum, hydroxyethyl cellulose, and white jellyfish glycosides are preferable, and xanthan gum is more preferable from the viewpoint of touch and handling properties.

  (B) The content of the polysaccharide thickener is preferably 0.05 to 5% by mass, more preferably 0.1 to 3% by mass, based on the total amount of makeup cosmetics, from the viewpoint of emulsion stability and suppression of stickiness. % Is preferred.

  In the oil-in-water emulsified makeup cosmetic of the present invention, the components (A) and (B) can be used in order to suppress the stickiness and stickiness of the component (B) and to improve the handleability of the component (A). It is important that the content mass ratio (A: B) is in the range of 1: 3 to 3: 1. When the amount of component (A) is less than 1: 3, the swaying and stickiness of component (B) cannot be hidden, and when the amount of component (A) is more than 3: 1, especially when component (A) is at a high concentration Furthermore, it is inferior in handleability and requires high shear during production.

  In the oil-in-water emulsified makeup cosmetic of the present invention, as the powder (C), if it is a powder generally used for cosmetics, it is spherical, plate-like, needle-like, smoke-like, fine particles, pigment grade It is not particularly limited depending on the particle size such as, particle structure such as porous and nonporous, and the like. Specifically, titanium oxide, black titanium oxide, conger, ultramarine, bengara, yellow iron oxide, black iron oxide, zinc oxide, aluminum oxide, silicon dioxide, magnesium oxide, zirconium oxide, magnesium carbonate, calcium carbonate, chromium oxide, Chromium hydroxide, carbon black, aluminum silicate, magnesium silicate, magnesium aluminum silicate, mica, synthetic mica, synthetic sericite, sericite, talc, kaolin, silicon carbide, barium sulfate, bentonite, smectite, boron nitride, etc. Inorganic powders: Bismuth oxychloride, titanium mica, iron oxide-coated mica, iron oxide mica titanium, organic pigment-treated mica titanium, aluminum powder and other glittering powders; organic powders such as wool powder, silk powder and crystalline cellulose Body: Silica, Nairro Resin powders such as powder, polymethyl methacrylate, acrylonitrile-methacrylic acid copolymer powder, polyethylene powder, organopolysiloxane elastomer powder, polymethylsilsesquioxane powder; pigments such as organic tar pigments and lake pigments of organic pigments Powders; composite powders of fine particle titanium oxide-coated mica titanium, fine particle zinc oxide-coated mica titanium, barium sulfate-coated mica titanium, titanium oxide-containing silicon dioxide, zinc oxide-containing silicon dioxide, and the like. Two or more kinds can be used.

  Among these powders, one or more selected from zinc oxide, titanium oxide, iron oxide, and mica titanium are more preferable from the viewpoint of covering power and makeup effect such as gloss.

  The content of the powder (C) in the oil-in-water emulsified cosmetic of the present invention is preferably 0.1 to 30% by mass, and 0.5 to 25% by mass based on the total amount of the oil-in-water emulsified makeup cosmetic. Is more preferable. (C) When the content of the powder is within this range, the color development is good, a sufficient cosmetic effect can be obtained as a makeup cosmetic, the makeup sustainability is good, and the powder is sufficiently powdered. The body can be dispersed and the emulsion stability is also good. The make-up cosmetic of the present invention is excellent in powder dispersibility, so that the powder can be highly blended. When used as a base make-up cosmetic, the covering power is taken into consideration. The body can contain 10 to 30% by mass based on the total amount of makeup cosmetics.

  In the oil-in-water type emulsified makeup cosmetic according to the present invention, in addition to the above-mentioned essential components, generally known base components and the like according to their desired form and dosage form are blended, and the place of the present invention. It can be used by widely blending as long as the effect of the period is not impaired. For example, liquid paraffin, squalane, petrolatum, microcrystalline wax, ceresin, cetyl alcohol, isostearyl alcohol, oleyl alcohol, 2-hexyldecanol, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, neopentyl di-2-ethylhexanoate Glycol, neopentyl glycol dicaprylate, neopentyl glycol dicaprate, glycerin tri-2-ethylhexanoate, glycerin triisostearate, olive oil, macadamia nut oil, sunflower oil, lanolin, lauric acid, myristic acid, palmitic acid, stearic acid, bees Oily raw materials such as wax, candelilla wax, carnauba wax, dimethylpolysiloxane, polysiloxane, methylphenylpolysiloxane; Siethylene oleyl ether, sorbitan monoisostearate, polyethylene glycol monostearate, lauroyl diethanolamide, sucrose fatty acid ester, sodium laurate, sodium lauryl sulfate, sodium myristate, polyoxyethylene lauryl ether sodium sulfate, stearyltrimethylammonium chloride, Surfactants such as polyether-modified silicone; Nicotinamide, benzyl nicotinate, vitamin E acetate, vitamin H, assembly extract, glycyrrhetinic acid, pantothenyl ethyl ether, and other medicinal ingredients; benzoic acid-based ultraviolet rays such as paraaminobenzoic acid Absorbents, anthranilic acid ultraviolet absorbers such as methyl anthranilate, octyl salicylate, phenyl salicylate, homomethyl salicylate Salicylic acid ultraviolet absorbers, isopropyl paramethoxycinnamate, octyl paramethoxycinnamate, 2-ethylhexyl paramethoxycinnamate, glyceryl mono-2-ethylhexanoate diparamethoxycinnamate, [4-bis ( Cinnamic acid UV absorbers such as trimethylsiloxy) methylsilyl-3-methylbutyl] -3,4,5, -trimethoxycinnamic acid ester, 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2 Benzophenone ultraviolet absorbers such as hydroxy-4-methoxybenzophenone-5-sulfonic acid and sodium 2-hydroxy-4-methoxybenzophenone-5-sulfonate, urocanic acid, ethyl urocanate, 2-phenyl-5-methylbenzo Xazole, 2- (2′-hydroxy) UV absorbers such as ci-5′-methylphenyl) benzotriazole and 4-tert-butyl-4′-methoxybenzoylmethane; sequestering agents such as alanine, sodium edetate and sodium polyphosphate; benzoic acid and salicylic acid , Coalic acid, sorbic acid, paraoxybenzoic acid ester, parachlorometacresol, hexachlorophene, benzalkonium chloride, chlorhexidine chloride, trichlorocarbanilide, photosensitizer, phenoxyethanol, etc .; ascorbic acid, α-tocopherol, dibutylhydroxy Antioxidants such as toluene and butylhydroxyanisole; pH adjusters such as lactic acid, citric acid, glycolic acid, succinic acid, tartaric acid, dl-malic acid, potassium carbonate, sodium bicarbonate, ammonium bicarbonate; moisturizer, film , Lower alcohols, polyhydric alcohols, sugars, amino acids, organic amines, skin nutrients, fragrances, colorants, water, and the like are appropriately blended in the oil-in-water emulsified makeup cosmetics of the present invention to obtain the desired dosage form. Accordingly, it can be produced by a conventional method.

  Examples of the form of the oil-in-water emulsified makeup cosmetics of the present invention include foundations, makeup bases, base makeup cosmetics such as base makeup cosmetics such as makeup bases, eye shadows, highlights, cheeks, mascaras, etc. Examples include point makeup cosmetics, skin care cosmetics such as BB cream, and the like that have a base makeup function.

  EXAMPLES Next, although an Example is given and this invention is demonstrated still in detail, this invention is not limited by these Examples. In addition, all compounding quantities are the mass%.

  The oil-in-water emulsified cosmetics listed in Table 1 below were prepared, and the stickiness, swaying (handling), and handling properties were evaluated based on the following evaluation criteria. The results are shown in Table 1.

(1) Evaluation criteria for usage characteristics (stickiness, slipperiness) 20 female panels apply each sample of the example and comparative example, “no stickiness”, “not slippery”, “over 2 hours” The characteristics of use were evaluated according to the number of respondents who answered “No”. The evaluation criteria are as follows.

○: 15 people or more △: 7-14 people ×: 6 people or less

(2) Evaluation Criteria for Handling Properties Using a homomixer manufactured by Primix, the dispersion of the water-soluble thickener in the aqueous phase and further the pigment dispersion were evaluated.
○: Excellent dispersion with low stirring (about 3000 rpm).
Δ: Slightly inferior in dispersion, but dispersible when the stirring speed (4000 to 5000 rpm) is increased
X: High stirring (5000 rpm or more) is required, and time is required.

  As is clear from the results shown in Table 1, (A) the water-soluble thickener and (B) the polysaccharide thickener used in the present invention are used within the range where (B) the polysaccharide thickener is large. In this case, there is a problem in the touch surface due to the original feel of the polysaccharide thickener such as stickiness and shearing. Furthermore, when a large amount of the water-soluble thickener (A) of the present invention is blended, Viscosity dispersion and pigment dispersion were poor, requiring high shear and time, and the effects of the present invention could not be obtained (Comparative Examples 1 to 3). In contrast, oil-in-water emulsified cosmetics formulated with a certain ratio of (A) a water-soluble thickener and (B) a polysaccharide-based thickener have no stickiness or slipperiness and good handling properties. It was.

  Below, the formulation example of this invention is shown further.

Example 3
(Make-up base)
(mass%)
1. Self-emulsifying glyceryl monoisostearate 1.0
2. Sorbitan monoisostearate 1.0
3. Stearyl alcohol 1.0
4). Octyl methoxycinnamate 7.5
5. Dimethicone * 4 0.5
6). α-olefin oligomer 4.0
7). Dimer linoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl) * 2 2.0
8). SepiMAX ZEN * 3 0.5
9. Xanthan gum 0.1
10. Sodium cetyl sulfate 0.2
11. Glycerin 4.0
12 Edetate disodium 0.1
13. Ascorbic acid glucoside 2.0
14 Gretinol 1.0
15. Hypericum extract 0.1
16. Olive leaf extract 0.1
17. Methylparaben 0.25
18. Phenoxyethanol 0.4
19. Purified water residue 20. Titanium oxide 2.0
21. Iron oxide 0.5
22. Talc 1.0
23. Mica titanium 1.0
* 4; Product name: KF-96A-6CS, manufactured by Shin-Etsu Chemical Co., Ltd.

Example 4
(Foundation)
(mass%)
1. Stearic acid 0.5
2. Glyceryl monostearate 1.5
3. Behenyl alcohol 0.5
4). α-olefin oligomer 14.0
5. Dimethicone * 5 1.0
6). SepiMAX ZEN * 3 1.0
7). Xanthan gum 0.5
8). Bentonite * 6 0.1
9. Sodium stearoyl glutamate 0.3
10. Glycerin 10.0
11. Chlorphenesin 0.2
12 Sodium hyaluronate 0.01
13. Ascorbic acid glucoside 0.1
14 Gretinol 0.1
15. Silk extract 0.1
16. Phenoxyethanol 0.4
17. Sodium dehydroacetate 0.2
18. Purified water balance 19. Titanium oxide 6.0
20. Iron oxide 0.8
21. Talc 1.0
22. Synthetic gold luck mother 1.0
* 5; Product name: 2-1184 Fluid, manufactured by Toray Dow Corning * 6; Product name: Kunipia G4, manufactured by Kunimine Industries

Example 5
(Makeup Base / Sunscreen)
(mass%)
1. Polyoxyethylene (20) sorbitan monolaurate 0.3
2. Polyoxyethylene (60) hydrogenated castor oil 0.8
3. Octyl methoxycinnamate 6.0
4). Butylmethoxybenzoylmethane 1.5
5. Octyldodecyl myristate 5.0
6). Phenyl trimethicone * 7 2.0
7). Dimethicone * 8 1.0
8). Isononyl isononanoate 1.0
9. Ethanol 8.0
10. Rhododendrol 2.0
11. Butylene glycol 3.0
12 (Dimethicone / vinyl dimethicone) Cross polymer * 9 0.1
13. SepiMAX ZEN * 3 1.0
14 Hydroxyethyl cellulose 0.4
15. Acrylic acid / alkyl methacrylate copolymer * 10 0.3
16. Potassium hydroxide 0.2
17. Purified water residue 18. Titanium oxide 2.0
19. Mica titanium 1.0
20. Glass powder 0.5
* 7; Product name: SH556, manufactured by Toray Dow Corning * 8; Product name: KF-96A-6CS, manufactured by Shin-Etsu Chemical Co., Ltd. * 9; Product name: KSG-16, manufactured by Shin-Etsu Chemical * 10; Name: PEMULEN TR-1, Lubrizol Advanced Materials, Inc. Made by company

Example 6
(Makeup Base / Sunscreen)
(mass%)
1. Octyl methoxycinnamate 7.5
2. Isocetyl myristate 5.0
3. Cyclomethicone * 11 4.0
4). Ethanol 10.0
5. SepiMAX ZEN * 3 0.4
6). (Na acrylate / acryloyl dimethyl taurine Na) copolymer * 12
2.0
7). 1% white fungus polysaccharide aqueous solution * 13 15.0
8). (Dimethicone / vinyl dimethicone) Cross-polymer aqueous dispersion * 14 1.0
9. Glycerin 2.0
10. Edetate disodium 0.02
11. Purified water residue 12. Titanium oxide 2.0
13. Silica 1.0
* 11; Product name: SH245 Fluid, manufactured by Toray Dow Corning * 12; Product name: SIMULGEL EG, manufactured by SEPPIC * 13; Product name: Sofcare TP-SB, manufactured by Kao Corporation * 14; Product name: PF-2001 Powder in Fluid Emulsion, manufactured by Toray Dow Corning

Claims (3)

  (A) 2-acrylamido-2-methylpropanesulfonic acid or a salt thereof, (meth) acrylic acid and / or an ester thereof, and a cross polymer containing N, N-dimethylacrylamide as constituent units, and (B) a polysaccharide-based increase Oil-in-water, characterized in that it contains a viscous agent and (C) powder, and the content ratio (A: B) of components (A) and (B) is 1: 3 to 3: 1. Type emulsified makeup cosmetics.   (B) The polysaccharide thickener is selected from the group consisting of xanthan gum, sclerotium gum, gum arabic, hydroxyethyl cellulose, guar gum, carrageenan, hyaluronic acid, tuberose polysaccharide, white jellyfish polysaccharide, locust bean gum and oxidized cellulose. The oil-in-water emulsified makeup cosmetic according to claim 1, wherein the cosmetic is one or more.   The oil-in-water emulsified makeup cosmetic according to claim 1 or 2, wherein (C) the powder is one or more selected from the group consisting of zinc oxide, titanium oxide, iron oxide and titanium mica. .