JP2012241005A - Aqueous or oil-in-water type make-up cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a make-up cosmetic which gives a fresh feeling, when coated, and is excellent in an antibacterial property.SOLUTION: The aqueous or oil-in-water type emulsified make-up cosmetic is characterized by comprising (A) a cross polymer containing 2-acrylamide-2-methylpropane sulfonic acid or its salt, (meth)acrylic acid and/or its ester, and N, N-dimethylacrylamide as constituting units, (B) two or more selected from antibacterial polyhydric alcohols and phenoxyethanol, and (C) a powder material.

Description

  The present invention relates to a water-based or oil-in-water emulsified makeup cosmetic.

  In order to maintain antiseptic properties in water-based cosmetics or oil-in-water emulsified cosmetics, there is a problem that more preservatives must be blended than oil-based cosmetics or water-in-oil emulsified cosmetics. Conventionally, parabens such as methyl paraben, ethyl paraben, and propyl paraben are frequently used as cosmetics, pharmaceuticals, and quasi drugs as excellent antiseptic fungicides. However, in a system in which pigments are blended, depending on the amount and type of pigment, parabens are adsorbed by the pigment, resulting in inactivation of the parabens, and more parabens must be blended. Paraben is excellent in antiseptic properties, but if it is incorporated in a large amount, there are many problems such as precipitation and system stability inhibition.

  In recent years, the combined use of polyalcohol and phenoxyethanol with high antibacterial properties reduces the amount of parabens and enhances antiseptic properties (see Patent Documents 1 and 2).

JP 11-310506 A JP 2003-81759 A

However, when a large amount of polyalcohol having high antibacterial properties is blended, it has been found that depending on the type of thickener blended in the cosmetic, physical properties such as viscosity and stability over time are affected.
Accordingly, an object of the present invention is to provide an aqueous or oil-in-water emulsified makeup cosmetic containing antibacterial polyhydric alcohol and powder, and having high antiseptic properties and storage stability.

  Therefore, as a result of examining various thickeners that can be used in cosmetics containing antibacterial polyhydric alcohol and powder, the present inventor has no change in physical properties due to the blending of polyhydric alcohol with a cross polymer having a specific structure, The present inventors have found that the stability of the system is not affected and that antibacterial properties can be maintained, 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) An aqueous or oil-in-water emulsified makeup cosmetic containing two or more selected from antibacterial polyhydric alcohol and phenoxyethanol and (C) powder.

  The cosmetic of the present invention has a fresh feel, is particularly excellent in antibacterial properties, and is excellent in storage stability, finish uniformity, moisture retention, and safety (low irritation).

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 water-soluble thickener (A) in the makeup cosmetic of the present invention is preferably 0.1 to 5% by mass, more preferably 0.15 to 3% by mass based on the total amount of the makeup cosmetic. 0.5 to 2% by mass is more preferable. (A) By making the water-soluble thickener within this range, it is excellent in freshness only at the time of application, the touch at the time of application by high concentration blending does not become heavy, the elongation at the time of application is difficult, and the skin is uneven. Absent.

The antibacterial polyhydric alcohol (B) used in the present invention preferably has at least two hydroxyl groups and exhibits antibacterial properties, such as dipropylene glycol, 1,3-butylene glycol, 1,2-pentanediol. 1,2-alkanediols such as 1,2-hexanediol, 1,2-decanediol and 1,2-octanediol can be preferably exemplified, and more preferably, dipropylene glycol, 1,3-butylene glycol, 1 , 2-pentanediol. The phenoxyethanol used in the present invention is produced by adding to ethylene oxide and distilling in an alkaline solution of phenol, and is also widely known as a commercial product. A cosmetic having excellent antibacterial properties can be obtained by combining two or more of these.
A more preferred combination of components (B) is a combination of two or more polyhydric alcohols selected from dipropylene glycol, 1,3-butylene glycol and 1,2-pentanediol. Further, it is more preferable to combine phenoxyethanol with a combination of two or more selected from dipropylene glycol, 1,3-butylene glycol and 1,2-pentanediol.

  The content of the component (B) is preferably 1 to 20% by mass, particularly preferably 2 to 10% by mass based on the total amount of the cosmetic of the present invention. By setting it as the above range, an excellent antibacterial action is exhibited and the stability is also improved.

  As content when using phenoxyethanol, 0.05-3 mass% is preferable on the basis of the total amount of cosmetics. An excellent antibacterial effect is exhibited within the range, but 0.05 to 1% by mass is particularly preferable in consideration of the problem of irritation and odor caused by blending a large amount.

  The powder (C) used in the present invention may be any powder as long as it is usually used in cosmetics, and is in the form of a plate, spindle, needle, etc., fumes, fine particles, pigment grades, etc. It is not particularly limited by the particle structure such as diameter, porous, non-porous, etc., and examples thereof include inorganic powders, glitter powders, organic powders, pigment powders, composite powders and the like. Specifically, conch, ultramarine, bengara, yellow iron oxide, black iron oxide, titanium oxide, zinc oxide, anhydrous silicic acid, aluminum oxide, cerium oxide, magnesium oxide, zirconium oxide, magnesium carbonate, calcium carbonate, chromium oxide, Inorganic powders such as chromium hydroxide, carbon black, aluminum silicate, magnesium silicate, magnesium aluminum silicate, mica, synthetic mica, synthetic sericite, sericite, talc, kaolin, silicon carbide, barium sulfate, boron nitride Bismuth oxychloride, titanium mica, iron oxide treated mica, iron oxide treated mica titanium, organic pigment treated mica titanium, silicon dioxide / titanium oxide coated mica, titanium oxide treated glass powder, iron oxide titanium oxide treated glass powder, aluminum powder, etc. Glitter powders; magnesium stearate, Organic powders such as zinc thetaate, N-acyl lysine, nylon, pigment powders such as organic tar pigments, lake pigments of organic dyes; fine titanium oxide coated mica titanium, fine zinc oxide coated mica titanium, barium sulfate coating Composite powders such as titanium mica, titanium dioxide containing silicon dioxide, zinc oxide containing silicon dioxide; polyethylene terephthalate / aluminum / epoxy laminated powder, polyethylene terephthalate / polyolefin laminated film powder, polyethylene terephthalate / polymethyl methacrylate laminated film powder, silicic anhydride These can be used, and one or more of these can be used. These powders may be used alone or in combination of two or more.

  The content of the powder in the water-based or oil-in-water emulsified makeup cosmetic of the present invention is preferably 0.1 to 30% by mass, more preferably 0.5 to 25% by mass based on the total amount of the cosmetic. preferable. When the content of the powder is within this range, the color developability by the powder blending is good, sufficient cosmetic effect is obtained, makeup persistence is sufficient, and the powder can be sufficiently dispersed. 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. It is preferable to contain 10-30 mass% of a body on the basis of the total amount of cosmetics.

  In the makeup cosmetics of the present invention, in addition to the above-mentioned essential components, normally known base components and the like according to their desired form and dosage form, and the desired effects of the present invention are impaired by their blending. It can be widely blended and used within a range that does not exist. 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 cis-5'-methylphenyl) benzotriazole, 4-tert-butyl-4'-methoxybenzoylmethane; sequestering agents such as alanine, sodium edetate, sodium polyphosphate; benzoic acid, 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 hydrogen carbonate, ammonium hydrogen carbonate; moisturizer, film agent Low Alcohols, polyhydric alcohols, sugars, amino acids, organic amines, skin nutrients, fragrances, colorants, water, etc. are appropriately blended in the cosmetics of the present invention, and manufactured by conventional methods according to the intended dosage form. Can do.

  In the makeup cosmetic of the present invention, the moisture content in the cosmetic is preferably 30 to 98% by mass, more preferably 40 to 95% by mass, particularly 50 to 50% in terms of obtaining excellent stability and a fresh feel. 90 mass% is preferable.

The water-based or oil-in-water emulsified makeup cosmetic of the present invention has an excellent antiseptic effect, does not change physical properties such as viscosity, and has good storage stability. In addition, it has a fresh feel and a uniform finish. In the present invention, the water-based makeup cosmetic is not an oil-in-water type, but a cosmetic in which powder is dispersed in an aqueous component or gel such as an aqueous dispersion or aqueous gel.
Examples of the form of the water-based or oil-in-water emulsified makeup cosmetic of the present invention include base makeup cosmetics such as foundations, makeup bases, and makeup bases, and point makeup cosmetics such as eye shadows, highlights, cheeks, and mascaras. , Skin care cosmetics such as BB cream and the like that have been given the function of base makeup.

EXAMPLES Hereinafter, although an Example and a comparative example are given and this invention is further explained in full detail, this invention is not limited by this.
Prior to the examples, the evaluation methods and sample preparation methods employed in each example will be described.

<Evaluation method>
(1) Use characteristics evaluation test Twenty female panels applied each sample of Examples and Comparative Examples, and the use characteristics were evaluated according to the number of respondents who replied "It is fresh and light."
The evaluation criteria are as follows.

15 people or more; ○
〃7-14 people;
〃 6 or less; ×

(2) Storage stability test The cosmetic was stored in a thermostatic bath at 0 ° C, 25 ° C, and 45 ° C for 3 months, and it was examined whether separation of the water phase component and the oil phase component occurred.
Does not separate at any temperature: ○
Separate even when stored at 25 ° C or lower: ×

(3) Antiseptic test (a) Aspergillus niger (black mold)
(B) Candida albicans
(C) Escherichia coli (E. coli)
(D) Staphylococcus aureus (Staphylococcus aureus)
(E) Pseudomonas aeruginosa (Pseudomonas aeruginosa)
The above-mentioned (a) to (e) were used as test bacteria, and each cultured product was inoculated into cosmetics. If the test bacteria inoculated after the inoculation showed a certain decrease, it was regarded as antiseptic.

<Method for preparing oil-in-water emulsified cosmetic>
The water phase component is heated to 80 ° C., the oil phase component heated to 80 ° C. in advance is added, the emulsion is cooled to 30 ° C., and the powder is dispersed to obtain the desired oil-in-water emulsion cosmetic.

Examples 1-3, Comparative Examples 1-2 Oil-in-water emulsified cosmetics with the composition described in Table 1 The oil-in-water emulsified cosmetics having the composition shown in Table 1 were produced by the above preparation methods, and the above various tests were performed. The results are also shown in Table 1.

  As shown in Table 1, the oil-in-water emulsified cosmetics of Examples 1 to 3 are superior to the oil-in-water emulsified cosmetics of Comparative Examples 1 and 2 in all points of use characteristics, storage stability and antiseptic properties. .

Example 4 Body Cream
(mass%)
1. Dimethylpolysiloxane (100 mm ² / s) 1.0
2. Octyldodecyl myristate 10.0
3. Self-emulsifying propylene glycol stearate 2.0
4). Cetanol 2.0
5. SepiMAX ZEN 1.0
5. Xanthan gum 0.1
7). Sorbitol 5.0
8). Edetate disodium 0.1
9. Methylparaben 0.2
10. Dipropylene glycol 1.0
11.1,2-Pentanediol 2.0
12 Olive leaf extract 0.1
13. Alcorbic acid glucoside 0.1
14 Glass powder 0.5
15. Purified water residue

Production method Ingredients 5 to 15 were dissolved by heating, and components 1 to 4 were added to and dispersed by heating. After dispersion, the mixture was cooled to room temperature to obtain the desired body cream.

Example 5 Hand Cream
(mass%)
1. Dimerlinoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl) * 2 10.0
2. Vaseline 5.0
3. Liquid paraffin 5.0
4). Self-emulsifying propylene glycol stearate 1.0
5. Sorbitan monoisostearate 1.0
6). Stearyl alcohol 1.0
7). Glycerin 10.0
8). Maltitol 10.0
9. Chlorphenesin 0.2
10.1,2-Pentanediol 1.0
11. Dipropylene glycol 1.0
12 Ascorbic acid glucoside 0.1
13. Gretinol 0.1
14 Glass powder 0.1
15. Purified water residue 16. SepiMAX ZEN 0.5
17. Locust bean gum 0.1
18. Xanthan gum 0.1
19. Purified water 10.0
* 2; Product name: Plandool-H, manufactured by Nippon Seika Co., Ltd.

Production method Ingredients 7 to 15 were dissolved by heating, and components 1 to 6 were added to and dispersed by heating. Ingredients 16 to 19 were dissolved in the solution by heating, and after dispersion, cooled to room temperature.

Example 6 Makeup 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. Dimethylpolysiloxane (100 mm ² / s) 0.5
6). α-olefin oligomer 4.0
7). Dimer linoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl) * 2 2.0
8). SepiMAX ZEN 1.0
9. Sodium cetyl sulfate 0.2
10. Dipropylene glycol 3.0
11.1,2-Pentanediol 2.0
12 Glycerin 4.0
13. Edetate disodium 0.1
14 Methylparaben 0.1
15. Phenoxyethanol 0.2
16. Dimethicone / vinyl dimethicone (cross polymer) aqueous dispersion * 3 1.0
17. Purified water residue 18. Yeast extract 0.1
19. Silk extract 0.1
20. Titanium oxide 2.0
21. Iron oxide 0.5
22. Talc 1.0
* 3; Product name: PF-2001 Powder in Fluid Emulsion
Made by Toray Dow Corning

Production method Ingredients 8 to 19 are dissolved by heating, and then ingredients 20 to 22 are added and dispersed therein. Furthermore, components 1 to 7 dissolved by heating in advance were added and dispersed to obtain the desired makeup base.

Example 7 Foundation
(mass%)
1. Stearic acid 0.5
2. Glyceryl monostearate 1.5
3. Behenyl alcohol 0.5
4). α-olefin oligomer 14.0
5. Dimethylpolysiloxane (20 mm ² / s) 1.0
6). SepiMAX ZEN 1.0
7). Bentonite * 4 0.1
8). Sodium stearoyl glutamate 0.3
9. Glycerin 5.0
10. Dipropylene glycol 5.0
11.1,2-Pentanediol 2.0
12 Chlorphenesin 0.2
13. Sodium hyaluronate 0.01
14 Phenoxyethanol 0.4
15. Hypericum extract 0.1
16. Olive leaf extract 0.1
17. Ascorbic acid disodium sulfate 0.01
18. Purified water residue 19. Titanium oxide 6.0
20. Iron oxide 1.5
21. Talc 3.0
22. Silk powder 0.1
* 4: Product name: Kunipia G4, manufactured by Kunimine Kogyo Co., Ltd.

Production method Ingredients 6-18 are heated and dissolved, and then ingredients 19-22 are added and dispersed therein. Furthermore, components 1 to 5 dissolved in advance by heating were added and dispersed to obtain the desired foundation.

  The water-based or oil-in-water emulsified makeup cosmetic of the present invention has a fresh feel at the time of application and is excellent in antibacterial properties, but has advantages such as long-lasting makeup, uniform finish, moisture retention, and safety (low irritation). It also has. Therefore, it can be applied in the field of pharmaceuticals, quasi-drugs and cosmetics used for skin conditioning and beauty, and is extremely useful in industry.

Claims (4)

  (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; An aqueous or oil-in-water emulsified makeup cosmetic comprising two or more selected from a monohydric alcohol and phenoxyethanol and (C) a powder.   The water-based or oil-in-water emulsified makeup cosmetic according to claim 1, wherein the component (B) contains two or more selected from dipropylene glycol, 1,3-butylene glycol, and 1,2-pentanediol.   The aqueous or oil-in-water emulsified makeup cosmetic according to claim 2, further comprising phenoxyethanol as component (B).   The water-based or oil-in-water emulsified makeup cosmetic according to any one of claims 1 to 3, wherein the content of the component (B) is 1 to 20% by mass based on the total amount of the cosmetic.