JP2002003338A - Oil-in-water type emulsion cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an oil-in-water type emulsion cosmetic that shows excellent cosmetic effect of expressing matted feeling by suppressing undesirable gloss on the face and whose powder can be spread on the skin without twisting thereby giving fresh and juicy impression. SOLUTION: This oil-in-water type emulsion cosmetic comprises (A) 7-20 mass % of organic powder, (B) an oily component, (C) a carboxy vinyl polymer and/or an alkyl-added carboxy-vinyl polymer and (D) silicic anhydride with an average particle size of 0.001-0.1 μm. In the above oil-in-water type emulsion the mass ratio of the content (B)/the content (A) is kept at 0.3-0.7. In the above oil-in-water type emulsion, the mass ratio of the content (D)/the content (C) is kept at 0.1-2. In addition, in all of the above oil-in-water type emulsions, the component (A) is starch.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an organic powder, an oily component, a carboxyvinyl polymer and / or an alkyl-added carboxyvinyl polymer, having an average particle size of 0.001 to 0.
An oil-in-water cosmetic containing 1 μm of silicic anhydride,
More specifically, by suppressing undesired gloss on the face, it has an excellent cosmetic effect that creates a matte feeling, and the powder spreads evenly without spilling on the skin, making it a fresh, fresh oil-in-water type It concerns cosmetics.

[0002]

2. Description of the Related Art Conventionally, in oil-in-water type cosmetics, in order to suppress undesired luster on the face and to produce a matte feeling, a technique of blending fine silicic anhydride and the like to absorb sebum and excess oil has been proposed. For example, a technique of blending spherical powders such as silicic anhydride or aluminum oxide and scattering visible light in multiple directions has been used.

[0003]

However, when fine silicic anhydride is blended in an oil-in-water type cosmetic, the interaction with water-soluble polymer blended as a stabilizer causes an increase in viscosity over time, Powder was sometimes distorted on the skin during application. Further, the oil-in-water type cosmetics containing a spherical powder such as silicic acid anhydride or aluminum oxide did not have a sufficient effect of producing a matte feeling.

[0004]

SUMMARY OF THE INVENTION In view of the above circumstances, the present inventors have proposed that an organic powder contains 7 to 20% by mass and an average particle size of 0.0
The oil-in-water cosmetic containing 0.01 to 0.1 μm of silicic anhydride was found to be excellent in producing a matte effect, and as a result of intensive studies, the oil-in-water cosmetic further contained an oily component and a carboxyvinyl polymer. The present inventors have found that the use of the compound and / or the alkyl-added carboxyvinyl polymer in combination improves the usability and the stability with time without the powder being disturbed at the time of application, and has completed the present invention.

That is, the present invention provides the following components (A) to
(D); (A) organic powder 7 to 20% by mass (B) oily component (C) carboxyvinyl polymer and / or alkyl-added carboxyvinyl polymer (D) silicic anhydride having an average particle diameter of 0.001 to 0.1 μm The present invention relates to an oil-in-water cosmetic comprising: Further, the content ratio of the above components (A) and (B) is expressed by mass ratio of component (B).
/ The component (A) = 0.3 to 0.7, the oil-in-water type cosmetic, and the content ratio of the components (C) and (D) is mass ratio of component (D) / component (C) = 0. The present invention relates to the oil-in-water type cosmetics described above. Further, the present invention relates to any of the above oil-in-water cosmetics wherein the component (A) is starch.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.
The organic powder of the component (A) used in the present invention is excellent in the effect of producing a matte feeling with good spreadability due to soft touch, and specifically, polymethylsilsesquioxane and polyorganosiloxane. Silicone resin powder such as elastomer, amino acid powder such as lauroyl lysine, polyacrylate powder such as polymethyl methacrylate, corn starch, tapioca starch, rice starch, starch powder such as wheat starch, potato starch, nylon powder, silk powder , Polystyrene powder, polyethylene powder, crystalline cellulose powder, and the like, and one or more of these can be used. In addition, these organic powders can be used after being hydrophobized by a generally known hydrophobizing agent and processing method.

The organic powder of the component (A) has an average particle size of 1 to 3 from the viewpoint of adhesion to the skin and a feeling of dryness.
30 μm is preferable, and 3 to 20 μm is particularly preferable. Further, among the organic powders exemplified above, starch powders which have good affinity for skin and water, and which are excellent in fresh feeling of use and excellent adhesion to skin, are particularly preferable.

[0008] In the oil-in-water cosmetic of the present invention, the content of the component (A) is 7 to 20% by mass (hereinafter simply referred to as "%"), and more preferably 10 to 16%. Excellent for the effect of suppressing stickiness and producing a matte feeling. If the content of the component (A) is less than 7%, the effect of suppressing stickiness and producing a matte feeling cannot be sufficiently exhibited, and
%, It is not preferable because the powdery feel becomes strong and may be separated with time.

The oily component of the component (B) used in the present invention eliminates warping during coating, improves powdery finish, and gives an emollient feeling. The oily component such as animal oil, vegetable oil, synthetic oil, etc. Regardless of the origin and properties of solid oil, semi-solid oil, liquid oil, volatile oil, etc., hydrocarbons, fats and oils,
Waxes, hardened oils, ester oils, higher alcohols,
Oil agents such as silicones, fluorinated oils, and lanolin derivatives are exemplified. Specifically, hydrocarbons such as liquid paraffin, squalane, petrolatum, polyisobutylene, polybutene, paraffin wax, ceresin wax, microcrystalline wax, mokurou, montan wax, fishatrops wax, olive oil, castor oil, jojoba oil, Fats and oils such as mink oil and macadamian nut oil, beeswax, lanolin, carnauba wax, candelilla wax, waxes such as gay wax, isocetyl octanoate, isopropyl myristate, isopropyl palmitate, octyldodecyl myristate, glyceryl trioctanoate , Diglyceryl diisostearate, diglyceryl triisostearate, glyceryl tribehenate, pentaerythritol rosinate, neopentyl glycol dioctanoate, Cholesterol fatty acid esters, esters such as N- lauroyl -L- glutamic acid di (cholesteryl behenyl octyldodecyl), stearyl alcohol, cetyl alcohol,
Higher alcohols such as lauryl alcohol, oleyl alcohol, isostearyl alcohol, behenyl alcohol, low polymerization degree dimethylpolysiloxane, high polymerization degree dimethylpolysiloxane, methylphenylpolysiloxane,
Silicones such as decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane, and fluorine-modified silicone, fluorine-based oils such as perfluoropolyether, perfluorodecane and perfluorooctane, lanolin, lanolin acetate, isopropyl lanolin fatty acid, and lanolin alcohol Lanolin derivatives, etc., and the like,
One or two or more of these can be used. The content of the component (B) in the oil-in-water cosmetic of the present invention is preferably from 0.1 to 20% from the viewpoint of eliminating distortion during application and improving a powdery finish.

[0010] The carboxyvinyl polymer and / or alkyl-added carboxyvinyl polymer of the component (C) used in the present invention has a fresh feeling of use, and is used for improving the coating property of the oil-in-water type cosmetic of the present invention. It is used to suppress sedimentation of the body and separation of oil. Specifically, B.I. F. GOODRICH's Carbopol 940, 941, 1342, PEMULEN TR-
1, TR-2, Hibiswako 10 manufactured by Wako Pure Chemical Industries, Ltd.
3, 104, 105, etc., and one or more of these can be used. The content of the component (C) in the oil-in-water cosmetic of the present invention is preferably 0.001 to 2% from the viewpoint of stability over time and eliminating distortion during application.

The silicic anhydride having an average particle size of 0.001 to 0.1 μm of the component (D) used in the present invention has a high effect of producing a matte feeling and is used for giving good coatability. is there. The shape of the silicic anhydride of the component (D) may be any shape such as irregular shape, spherical shape, and acicular shape. However, if the average particle size is less than 0.001 μm, the scattering effect of visible light is reduced. The effect of producing a feeling is inferior, and if it exceeds 0.1 μm, it becomes difficult to obtain good coating properties, which is not preferable. Such silicic acid anhydrides are, specifically, AEROSIL 200, 300, R97 manufactured by Nippon Aerosil Co., Ltd.
2, R974, CAB-O-SIL manufactured by Cabot Corporation
TS-530 and the like. The content of the component (D) in the oil-in-water cosmetic of the present invention is determined from the viewpoint of usability.
0.01 to 2% is preferred.

In the oil-in-water cosmetic of the present invention, the content ratio of component (A) to component (B) is expressed by mass ratio of component (B) /
When the component (A) is 0.3 to 0.7, the effect of producing a matte feeling is more excellent without causing a warpage at the time of application. When the content ratio of the component (C) to the component (D) is 0.1 to 2 in a ratio by mass of the component (D) / the component (C), the effect of producing stability over time and producing a matte feeling is particularly excellent. Things.

[0013] The oil-in-water cosmetic of the present invention contains water in addition to the above components. The water content in the oil-in-water cosmetic of the present invention is generally 40 to 95%.

The oil-in-water cosmetic of the present invention may contain, if necessary, an emulsifier and a dispersant, such as nonionic surfactants, anionic surfactants, cationic surfactants, and amphoteric surfactants. Agents can be included. Specifically, as the nonionic surfactant, glycerin fatty acid ester and its alkylene glycol adduct, polyglycerin fatty acid ester and its alkylene glycol adduct, propylene glycol fatty acid ester and its alkylene glycol adduct, sorbitan fatty acid ester and its Alkylene glycol adducts, fatty acid esters of sorbitol and its alkylene glycol adducts,
Polyalkylene glycol fatty acid ester, sucrose fatty acid ester, polyoxyalkylene alkyl ether, glycerin alkyl ether, polyoxyethylene alkyl phenyl ether, polyoxyethylene hydrogenated castor oil, alkylene glycol adduct of lanolin, polyoxyalkylene-modified silicone, polyether-modified Silicone and the like can be mentioned, and one or more of these can be used. Examples of the anionic surfactant include fatty acids such as stearic acid and lauric acid and their inorganic and organic salts, alkylbenzene sulfates, alkyl sulfonates, α-olefin sulfonates, dialkyl sulfosuccinates, α-sulfonates. Fatty acid salt, acylmethyl taurine salt, N-methyl-N-alkyl taurine salt, polyoxyethylene alkyl ether sulfate, polyoxyethylene alkyl phenyl ether sulfate, alkyl phosphate, polyoxyethylene alkyl ether phosphate, polyoxyethylene Alkyl phenyl ether phosphate, N-
Examples include acyl amino acid salts, N-acyl-N-alkyl amino acid salts, o-alkyl-substituted malate salts, and alkyl sulfosuccinate salts, and one or more of these can be used. Examples of the cationic surfactant include alkylamine salts, polyamine and alkanoylamine fatty acid derivatives, alkyl quaternary ammonium salts, cyclic quaternary ammonium salts, and the like, and one or more of these can be used. As amphoteric surfactants, lecithin, amino acid type or betaine type carboxylic acid type,
There are sulfate ester type, sulfonic acid type and phosphate ester type, and those safe for human body can be used. For example, N, N-dimethyl-N-alkyl-N-carboxylmethylammonium betaine, N, N-dialkylaminoalkylenecarboxylic acid, N, N, N-trialkyl-N-sulfoalkyleneammonium betaine, N, N- Dialkyl-N, N-bis (polyoxyethylene sulfate) ammonium betaine, 2-alkyl-1
-Hydroxyethyl-1-carboxymethylimidazolinium betaine and the like, and one or more of these can be used. When a surfactant is added to the oil-in-water cosmetic of the present invention, the content is preferably about 0.001 to 5%.

The oil-in-water type cosmetic of the present invention may further comprise, in addition to the above-mentioned components, a quantitative amount which does not impair the effects of the present invention, depending on the purpose.
Within the qualitative range, powders other than component (A), component (C)
Other than water-soluble polymers, aqueous components, film-forming agents, gelling agents, humectants, UV absorbers, acids, bases, antioxidants, preservatives, chelating agents, pH adjusters, fragrances, beauty ingredients, etc. Components commonly used in cosmetics can be blended.

The oil-in-water type cosmetic of the present invention contains the component (A) for the purpose of a coloring agent, a masking agent, a feel control agent, an ultraviolet ray blocking agent and the like.
Other inorganic powders can be blended. In particular,
Inorganic powders such as talc, kaolin, sericite, natural mica, synthetic mica, magnesium carbonate, calcium carbonate, aluminum silicate, magnesium silicate, aluminum magnesium silicate, calcium silicate, silicic anhydride, boron nitride, etc., oxidation Inorganic white pigments such as titanium, zinc oxide, cerium oxide, zirconium oxide, etc., inorganic coloring pigments such as red iron oxide, black iron oxide, Gunjo, konjo, carbon black, mica titanium, mica titanium oxide, bismuth oxychloride, etc. Pearling agents, tar dyes, etc., and one or more of these can be used. The powder may be treated with a generally known hydrophobizing agent such as a fluorine compound, a silicone compound, a metal soap, a wax, a fat or oil, or a hydrocarbon by a generally known treatment method. When blending the inorganic powder with the oil-in-water cosmetic of the present invention, it is generally 0.1 to 30.
% Is preferred.

The oil-in-water type cosmetic of the present invention may contain a water-soluble polymer other than the component (C) for the purpose of, for example, a viscosity improver or a feel modifier. Specifically, xanthan gum, gellan gum, native gellan gum, agar, casein, caginan, quince seed, gelatin, pectin, carboxymethylcellulose, polyvinylpyrrolidone, methylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, alginate, polyacrylic acid, acrylic acid and And methacrylic acid ester copolymer emulsions. One or more of these may be used. When the water-soluble polymer is blended in the oil-in-water cosmetic of the present invention, it is generally 0.0001.
~ 3% is preferred.

The oil-in-water type cosmetic of the present invention may contain an aqueous component for the purpose of a humectant, a preservative and the like. Specifically, lower alcohols such as ethanol and isopropyl alcohol, glycols such as propylene glycol, 1,3-butylene glycol, dipropylene glycol, and polyethylene glycol; glycerols such as glycerin, diglycerin, and polyglycerin; And one or more of these can be used. When blending the aqueous component in the oil-in-water cosmetic of the present invention, it is preferably about 0.1 to 30%.

The oil-in-water cosmetic of the present invention can be applied to foundations, foundations, serums, emulsions, white powders, blushers, sunscreens, concealers, body powders, antiperspirants, etc. In addition, the effects of the present invention are easily exhibited in emulsions. The form of the oil-in-water cosmetic of the present invention includes a liquid, a gel, an emulsion, a cream, and a solid.

[0020]

EXAMPLES Next, the present invention will be further described with reference to examples, but the present invention is not limited to these examples.

Examples 1 to 7 and Comparative Examples 1 to 7: Gel base The gel bases having the compositions shown in Tables 1 and 2 were prepared by the following production methods, and evaluated according to the following evaluation methods and criteria. , And evaluate the “freshness”, “no stickiness”, “good fit”, “no dust”, “matte feeling” and “stability over time” at the time of application. The results are shown in Tables 1 and 2.

[0022]

[Table 1]

[0023]

[Table 2]

(Production method) A: Components 1 to 11 are uniformly mixed and dissolved, and the temperature is kept at 70 ° C. B: Components 12 to 17 and components 22 to 23 are uniformly mixed and kept at 70 ° C. C: B is added to A and emulsified. D: After cooling C, add components 18 to 21 and mix homogeneously. E: D was filled in a container to obtain a gel base.

Evaluation method: Sensory evaluation A panel of 20 cosmetics professionals was asked to use the gel bases of the above Examples and Comparative Examples. The following evaluation criteria were used for each of the evaluation items of “sa”, “good fit”, “no dust”, and “finished matte”.
Each panel was evaluated on a scale, and the average score of each panel was determined according to the following criteria. Evaluation criteria: [Evaluation]: [Rating] Very good: 6 Good: 5 Somewhat good: 4 Normal: 3 Somewhat bad: 2 Poor: 1 Very bad: 0 Judgment criteria: [Average score]: [ Judgment] 5 points or more: ◎ 4 points or more and less than 5 points: ○ 2.5 points or more and less than 4 points: △ Less than 2.5 points: ×

Evaluation method: Stability over time The gel bases of the above Examples and Comparative Examples were filled in a sealed glass bottle, left in a constant temperature bath at 50 ° C. for 2 weeks, and evaluated for changes in appearance and usability as follows. The evaluation was made according to the standard. Evaluation criteria: [Evaluation]: [Judgment] No change at all: ◎ Slight change in appearance but no problem in usability: ○ Slight change in appearance and problem in usability: △ Clear appearance There is a change: ×

As is clear from the results in Tables 1 and 2,
The gel-like base of the present invention has a `` freshness '', `` no stickiness '', `` good fit '', `` no dust '', a finished `` matte feeling '',
And "time stability".

Example 8: Day cream (ingredient) (% by mass) 2. N-stearoyl-L-sodium glutamate 0.5 2.1,3-butylene glycol 5 Behenyl alcohol 14 Polyoxyethylene (10) hydrogenated castor oil 0.55. Vaseline 1 6. Squalane 5 7. Cetyl isooctanoate 3 8 8. Dimethyl polysiloxane (100 cs) 0.2 Polyethylene glycol (molecular weight: about 400) 5 10.1,3-butylene glycol 5 11. Preservative appropriate amount 12. Carboxyvinyl polymer (Note 7) 0.2 13. Polymethyl methacrylate (Note 8) 15 14. 14. Silicic anhydride of component (D) (Note 9) 0.25 Sodium hydroxide 0.06 16. Remaining purified water Note 7: Carbopol 941 (BF GOODRICH) Note 8: Matsumoto Microsphere M305 (Matsumoto Yushi Pharmaceutical Co., Ltd.) Note 9: AEROSIL 300 (Nippon Aerosil)

(Manufacturing method) A: Components 1 to 8 are uniformly mixed and dissolved, and kept at 70 ° C. B: Components 9 to 12 and components 15 to 16 are uniformly mixed,
Keep at 70 ° C. C: B is added to A and emulsified. D: After cooling C, add components 13 to 14, and mix uniformly. E: D was filled in a container to obtain a day cream. The day cream of Example 8 had a “freshness”, “no stickiness”, “good fit”, “no dust”, “matte feeling”, and “stability over time” when applied. All had excellent properties.

Example 9: Emulsion sunscreen (components) (% by mass) 1. N-stearoyl-N-methyltaurine sodium 0.3 2. 2. hydrogenated soy lecithin 0.1 Glycerin 8 4. Cetanol 0.55. Hardened oil 0.5 6. 6. 2-Ethylhexyl paramethoxycinnamate 7 Vitamin E 0.1 8. Appropriate amount of flavor 9. Dipropylene glycol 10 10. Preservative appropriate amount 11. Carboxyvinyl polymer (Note 10) 0.1 12 Fine particle zinc oxide 3 13. Nylon powder (Note 11) 12 14. 14. Silicic anhydride of component (D) (Note 5) 0.05 Sodium hydroxide 0.03 16. Remaining purified water Note 10: Hibiswako 105 (Wako Pure Chemical) Note 11: Nylon 12 SP-500 (Toray)

(Production method) A: Components 1 to 8 are uniformly mixed and dissolved, and the temperature is kept at 70 ° C. B: Components 9 to 11 and components 15 to 16 are uniformly mixed,
Keep at 70 ° C. C: B is added to A and emulsified. D: After cooling C, add components 12 to 14 and mix uniformly. E: D was filled into a container to give an emulsion sunscreen. The emulsion sunscreen of Example 9 had a “freshness”, “no stickiness”, “good fit”, “no dust”, a “matte” finish, and “stable with time” when applied. In all of the properties.

Example 10: Emulsion foundation (component) (% by mass) 1. Polyoxyethylene (40) monostearic acid 1.5 Glycerin 8 3. Dipropylene glycol 6 4. Glyceryl monostearate 0.55. Behenyl alcohol 0.56. Dipentaerythrit fatty acid ester 0.37. Mineral oil 1 8. 8. Propylene glycol dicaprate 1 Decamethylcyclopentasiloxane 1 10. 10. Appropriate amount of fragrance Titanium oxide 5 12. Bengala 0.2 13. 13. Yellow iron oxide 0.8 Black iron oxide 0.1 15. Dipropylene glycol 10 16. Preservative appropriate amount 17. Carboxyvinyl polymer (Note 12) 0.15 18. Cellulose powder (Note 13) 8 19. Silica anhydride of component (D) (Note 14) 0.28 20. Triethanolamine 0.15 21. Remaining purified water Note 12: Carbopol 1342 (BF GOODRICH) Note 13: Avicel PH101 (Asahi Kasei Kogyo) Note 14: AEROSIL R-972 (Nippon Aerosil)

(Production method) A: Components 1 to 10 are uniformly mixed and dissolved, and the temperature is kept at 70 ° C. B: Components 15 to 17 and components 20 to 21 are uniformly mixed and kept at 70 ° C. C: B is added to A and emulsified. D: After cooling C, components 11 to 14 and components 18 to 19 are added and uniformly mixed. E: D was filled in a container to obtain an emulsion foundation. The emulsion foundation of Example 10 had a “freshness”, “no stickiness”, “good fit”, “no dust”, a “matte” finish, and “stability over time” when applied. "Had excellent properties.

[0034]

As described in detail above, the oil-in-water cosmetic of the present invention suppresses unfavorable luster on the face,
The oil-in-water cosmetic was excellent in a cosmetic effect producing a matte feeling, and spread evenly without powder being twisted on the skin, and was fresh and refreshing.

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Claims (4)

[Claims] 1. The following components (A) to (D): (A) 7 to 20% by mass of organic powder (B) oily component (C) carboxyvinyl polymer and / or alkyl-added carboxyvinyl polymer (D) average An oil-in-water type cosmetic comprising silicic anhydride having a particle size of 0.001 to 0.1 μm. 2. The composition according to claim 1, wherein the content ratio of the components (A) and (B) is 0.3 to 0.7 in terms of mass ratio of the component (B) / the component (A). Oil-in-water cosmetics. 3. The method according to claim 1, wherein the content ratio of the components (C) and (D) is 0.1 to 2 in a ratio by mass of the component (D) / the component (C). Oil-in-water cosmetics. 4. The oil-in-water cosmetic according to claim 1, wherein the component (A) is starch.