JP6009373B2 - Oil-in-water powder cosmetic - Google Patents

Description

The present invention relates to an oil-in-water powder cosmetic that feels cool.

Conventionally, water-based cosmetics containing a cooling sensation material are known as cosmetics that feel a cooling sensation (see, for example, Patent Document 1). Further, (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer is known as a thickener or the like (for example, see Patent Documents 2 and 3).
Furthermore, sunscreen cosmetics and summer foundations must contain an ultraviolet scattering agent such as titanium oxide or zinc oxide, iron oxide that produces a complexion, talc or sericite as a base material.

Japanese Patent Laid-Open No. 9-208452 JP 2011-20966 A JP 2012-020988 A

If a sunscreen agent or makeup cosmetic contains a refreshing agent, it will feel cooler when applied in the summer, which will increase the product appeal, but in reality the effect of the contained powder However, there was a drawback that it was difficult to feel the cold feeling.

In this situation, the inventors of the present invention have conducted intensive research to solve the above problems, and as a result, formulated a water-in-oil emulsion comprising (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer, isohexadecane, and water. As a result, it was found that even when powder was contained, a cold feeling was felt, and the present invention was completed.

That is, this invention is an oil-in-water type powder cosmetic characterized by blending the following components (A), (B) and (C).
(A) (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer, isohexadecane, water-in-oil emulsion consisting of water (B) refreshing agent (C) ethanol

The present invention provides an oil-in-water powder cosmetic that feels cool even when it contains powder.

The component (A) used in the present invention is a water-in-oil emulsion composed of (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer, isohexadecane and water, and any one can be used as long as it is usually used in cosmetics. Can also be used. Examples of commercially available products include SIMULGEL FL (manufactured by SEPPIC).

Although content of the component (A) used by this invention is not specifically limited, Preferably it is 0.1-10 mass%. More preferably, it is 0.3-5 mass%. If it is 0.1% by mass or less, the effect may not be sufficient, and if it is 10% by mass or more, it is not economical. The blending ratio of each component in component (A) is not particularly limited, but is preferably as follows. (Hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer is 30 to 50% by mass, more preferably 35 to 40% by mass in component (A). Isohexadecane is 15-40 mass%, More preferably, it is 20-30 mass%. Furthermore, when polysorbate 60 and sorbitan isostearate are contained as an emulsifier, the stability is further increased. Although content of the polysorbate 60 is not specifically limited, Preferably it is 1-10 mass% in a component (A), More preferably, it is 3-8 mass%. The content of sorbitan isostearate is not particularly limited, but is preferably 5% by mass or less, more preferably 2% by mass or less in the component (A).

Component (B) freshener used in the present invention is 1-menthol, d-menthol, dl-menthol, 1-mentholone, d-mentholone, dl-mentholone, 1-isomenthol, d-isomenthol, dl- Isomenthol, l-neomenthol, d-neomenthol, dl-neomenthol, l-neoisomenthol, d-neoisomenthol, dl-neoisomenthol, l-menthyl acetate, d-menthyl acetate, dl-menthyl acetate , L-camphor, d-camphor, dl-camphor, simple perfume ingredients such as 1,8-cineole, and combinations thereof. Peppermint oil, lactate menthyl, PCA menthyl and the like are also available. Although the compounding quantity of a refreshing agent is not specifically limited, Preferably it is 0.01-10 mass%, More preferably, it is 0.1-5 mass%. If it is 0.01% by mass or less, the effect may not be obtained, and if it is 10% by mass or more, irritation may occur depending on the prescription system, and it is not economical.

Although the compounding quantity of ethanol which is the component (C) used by this invention is not specifically limited, It is 0.5-30 mass%, Preferably it is 1.0-10 mass%. Generally, the refreshing feeling of a refreshing agent such as menthol is enhanced by ethanol. If it is less than 0.5% by mass, not only such an enhancement effect is seen, but also stickiness may be felt during use. On the other hand, if the blending amount exceeds 30% by mass, the skin irritation caused by ethanol may become conspicuous.

The oil phase used in the present invention includes liquid paraffin, squalane, petrolatum, microcrystalline wax, ceresin, cetyl alcohol, isostearyl alcohol, oleyl alcohol, 2-hexyldecanol, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, Di-2-ethylhexanoic acid neopentyl glycol, dicaprylic acid neopentyl glycol, dicapric acid neopentyl glycol, tri-2-ethylhexanoic acid glycerin, triisostearic acid glycerin, olive oil, macadamia nut oil, sunflower oil, lanolin, lauric acid, myristic acid, Palmitic acid, stearic acid, beeswax, candelilla wax, carnauba wax, linear or cyclic dimethylpolysiloxane, methylphenylpolysiloxa Like oil etc. is. The content of these oils is preferably 1 to 20% by mass, 2 to 15% by mass, and more preferably 5 to 10% by mass.

If the powder used by this invention is a powder normally used for cosmetics, it will not specifically limit. For example, talc, sericite, mica, synthetic mica, silica, barium sulfate, alumina, boron nitride, titanium oxide, iron oxide, zinc oxide and other inorganic powders, nylon, polyurethane, polyethylene, polystyrene, polymethyl methacrylate, silicone powder And organic powders. Moreover, what hydrophobized these, such as a silicone process, a fatty-acid process, and a fluorine process, can also be used. Although the compounding quantity of said powder is not specifically limited, 0.5-20 mass% is preferable with respect to oil-in-water type powder cosmetics.

The present invention is a stable oil-in-water emulsion comprising components (A) to (C), but higher alcohols such as behenyl alcohol and rapeseed alcohol, and polyglycerin fatty acids such as polyglyceryl monoisostearate and decaglyceryl pentastearate It is more effective when an ester is used in combination.

The oil-in-water powder cosmetic in the present invention refers to a cosmetic that is an oil-in-water cosmetic and contains powder. Specific examples include cream foundations, liquid foundations, foundation creams, foundation essences, sunscreen agents, and the like.

In the oil-in-water powder cosmetic of the present invention, various components other than the above-described components, for example, an ultraviolet absorber, a moisturizer, an aqueous component, a surfactant, an oxidation agent, are necessary as long as the effects of the present invention are not impaired. An inhibitor, a cosmetic ingredient, an antiseptic, a water-soluble polymer, a film-forming agent, an antifading agent, an antifoaming agent, a fragrance, and the like can be appropriately blended to impart various effects.

The present invention will be described in more detail with reference to the following examples. In addition, these do not limit this invention at all.

(Examples 1 to 8 and Comparative Examples 1 to 3) An oil-in-water powder cosmetic was produced according to the formulations shown in Tables 1 and 2 and the method shown below. About each obtained sample, the sensory evaluation evaluated the cold feeling at the time of application | coating, the sustainability of the cold feeling after application | coating, elongation, and the good temporal stability. These results are also shown in Tables 1 and 2.

* 1: SIMULGEL FL (water, (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer, isohexadecane, polysorbate 60, sorbitan isostearate: manufactured by SEPPIC)
* 2: SIMULGEL NS (water, (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer, squalane, polysorbate 60, sorbitan isostearate: manufactured by SEPPIC)
* 3: SIMULGEL EG (water, (acrylic acid Na / acryloyldimethyltaurine Na) copolymer, isohexadecane, polysorbate 60, sorbitan oleate: manufactured by SEPPIC)
* 4: SOLAVEIL XTP1-PW- (WD) (manufactured by Croda)
* 5: Nikomulus 41 (behenyl alcohol, decaglyceryl pentastearate, stearoyl lactate Na: manufactured by Nikko Chemicals)
* 6: NIKKOL Decaglyn 1-IS (Nikko Chemicals)

(Production method)
Part A was uniformly dispersed to form an aqueous phase. Part B was uniformly dispersed at 80 ° C. to obtain an oil phase, and part A (water phase) heated to 85 ° C. was added thereto, and the mixture was stirred while keeping at 80 ° C. for emulsification. After emulsification, it was cooled and C part was added with stirring to obtain a makeup base.

* 7: SA-TTO-S-4 (manufactured by Miyoshi Kasei Co., Ltd.)
* 8: NIKKOL Decaglyn 1-M (Nikko Chemicals)

(Production method)
Part A was uniformly dispersed to form an aqueous phase. Part B was uniformly dispersed at 80 ° C. to obtain an oil phase, and part A (water phase) heated to 85 ° C. was added thereto, and the mixture was stirred while keeping at 80 ° C. for emulsification. After emulsification, the mixture was cooled and part C was added with stirring to obtain a liquid foundation.

(Evaluation)
Sensory evaluation (i) Cool feeling at the time of application, (b) Sustainability of the cold feeling after application, (c) Good elongation, use panel test by 10 professional panelists, each panel by the following absolute evaluation Evaluation was made on 7 levels and given a score, and the average value was calculated from the total score of all the panel members for each sample, and judged according to the following 4 levels criteria.
(D) Stability over time The hardness and appearance of the samples stored at 25 ° C. and 40 ° C. for 3 months were compared with those immediately after the preparation to evaluate the stability.
A: Hardness change was 10% or less under any storage condition, and no change in appearance was observed.
○: No change in appearance was observed under any storage conditions, but only a 10% or more change in hardness was observed when stored at 40 ° C.
Δ: No change in appearance was observed under any storage conditions, but a hardness change of 10% or more was observed.

(Evaluation method)
Using 10 sensory test panels, each sample is picked up in an appropriate amount, applied to the cheek, and the following evaluation items are evaluated by each panel in 7 levels by absolute evaluation. Judgment was made based on the four-stage criteria based on the values.
(Evaluation item)
(B) Cool feeling at the time of application (b) Sustainability of the cold feeling after application (c) Good elongation
(Score): (Evaluation)
6: Very good 5: Good 4: Somewhat good 3: Normal 2: Somewhat bad 1: Bad 0: Very bad (judgment criteria)
(Average score) (Judgment)
Exceeding 5 points: Excellent: ◎
Over 3 points and under 5 points: Excellent: ○
More than 1 point and 3 points or less: Inferior: △
1 point or less: Very inferior: ×

The particle diameter observation was almost unchanged, and ◎ was less than 10%.

In Table 1, when squalane is used instead of isohexadecane, it is difficult to feel the cold feeling. In addition, it is difficult to feel the cold feeling even if different polymers are used. Further, when glycerin fatty acid ester and higher alcohol are blended, the effect is further enhanced.

In Table 2, the blending amount of component (A) (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer, isohexadecane, and water-in-oil emulsion consisting of water is 0.1 to 10% by mass, component (B) Examples 3 and 6 in which the content of the agent was 0.01 to 10% by mass and the ethanol content of the component (C) was 0.5 to 30% by mass were even better results.

Example 9: Makeup base Ingredient name Compounding amount (mass%)
1. 1. Purified water remaining SIMULGEL FL (* 1) 2.00
3. 1,3-butylene glycol 10.00
4). Yellow iron oxide 1.20
5. Bengala 0.50
6). Black iron oxide 0.20
7). Squalane 2.00
8). Hydrogenated polyisobutene 2.00
9. Isotridecyl isononanoate 5.00
10. Silicone / stearic acid-treated fine particle titanium oxide (* 7) 5.00
11. Nikomulus 41 (* 5) 1.00
12 Decaglyceryl monomyristate (* 8) 1.00
13. Hardened rapeseed oil alcohol 0.20
14 Menthol 0.50
15. Peppermint oil 0.50
16. Ethanol 7.00
Total 100.00

(Production method)
Components 1 to 6 were uniformly dispersed to form an aqueous phase. Components 7 to 13 were uniformly dispersed at 80 ° C. to obtain an oil phase, and an aqueous phase heated to 85 ° C. was added thereto, and the mixture was emulsified by stirring at 80 ° C. After emulsification, the product was cooled and components 14 to 16 were added with stirring to obtain a makeup base.

Example 10: Makeup base Ingredient name Compounding amount (mass%)
1. 1. Purified water remaining SIMULGEL FL (* 1) 0.15
3. 1,3-butylene glycol 10.00
4). Yellow iron oxide 1.20
5. Bengala 0.50
6). Black iron oxide 0.20
7). Squalane 2.00
8). Hydrogenated polyisobutene 2.00
9. Isotridecyl isononanoate 5.00
10. Silicone-treated fine particle titanium oxide (* 9) 5.00
11. Nikomulus 41 (* 5) 1.00
12 Polyglyceryl monoisostearate (* 6) 1.00
13. Behenyl alcohol 0.20
14 Menthol 0.01
15. Peppermint oil 0.01
16. Ethanol 0.80
Total 100.00
* 9: SAS-MT-700B (9%) (manufactured by Miyoshi Kasei)

(Production method)
Components 1 to 6 were uniformly dispersed to form an aqueous phase. Components 7 to 13 were uniformly dispersed at 80 ° C. to obtain an oil phase, and an aqueous phase heated to 85 ° C. was added thereto, and the mixture was emulsified by stirring at 80 ° C. After emulsification, the product was cooled and components 14 to 16 were added with stirring to obtain a makeup base.

Example 11: Liquid foundation Ingredient name Compounding quantity (mass%)
1. 1. Purified water remaining SIMULGEL FL (* 1) 5.00
3. 1,3-butylene glycol 10.00
4). Pigment grade titanium oxide 7.00
5. Yellow iron oxide 1.20
6). Bengala 0.50
7). Black iron oxide 0.20
8). Methyl paramethoxybenzoate 0.20
9. Squalane 5.00
10. Hydrogenated polyisobutene 5.00
11. Stearic acid-treated fine particle titanium oxide (* 4) 5.00
12 Nikomulus 41 (* 5) 1.00
13. Polyglyceryl monoisostearate (* 6) 1.00
14 Behenyl alcohol 0.20
15. Menthol 5.00
16. Peppermint oil 5.00
17. Ethanol 10.00
Total 100.00

(Production method)
Components 1 to 8 were uniformly dispersed to obtain an aqueous phase. Components 9 to 14 were uniformly dispersed at 80 ° C. to obtain an oil phase, and an aqueous phase heated to 85 ° C. was added thereto, and the mixture was emulsified by stirring at 80 ° C. After emulsification, the mixture was cooled and components 15 to 17 were added with stirring to obtain a liquid foundation.

Example 12: Liquid foundation Ingredient name Compounding amount (mass%)
1. 1. Purified water remaining SIMULGEL FL (* 1) 8.00
3. 1,3-butylene glycol 10.00
4). Pigment grade titanium oxide 10.00
5. Yellow iron oxide 1.20
6). Bengala 0.50
7). Black iron oxide 0.20
8). Methyl paramethoxybenzoate 0.20
9. Squalane 5.00
10. Hydrogenated polyisobutene 5.00
11. Silicone-treated fine particle titanium oxide (* 9) 5.00
12 Nikomulus 41 (* 5) 1.00
13. Polyglyceryl monoisostearate (* 6) 1.00
14 Behenyl alcohol 0.20
15. Menthol 4.00
16. Peppermint oil 4.00
17. Ethanol 25.00
Total 100.00

(Production method)
Components 1 to 8 were uniformly dispersed to obtain an aqueous phase. Components 9 to 14 were uniformly dispersed at 80 ° C. to obtain an oil phase, and an aqueous phase heated to 85 ° C. was added thereto, and the mixture was emulsified by stirring at 80 ° C. After emulsification, the mixture was cooled and components 15 to 17 were added with stirring to obtain a liquid foundation.

Examples 9 to 12 were also oil-in-water powder cosmetics that felt a sufficient feeling of cooling.

The oil-in-water powder cosmetic of the present invention contains a water-in-oil emulsion consisting of (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer, isohexadecane, and water, so that it feels cool even if it contains powder. It can be felt.

Claims (8)

An oil-in-water type powder cosmetic comprising the following components (A), (B) and (C):
(A) (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer, isohexadecane, water-in-oil emulsion consisting of water (B) refreshing agent (C) ethanol The content of the component (A) is 0.1 to 10% by mass, the content of the component (B) is 0.01 to 10% by mass, and the content of the component (C) is 0.5 to 30% by mass. The oil-in-water type powder cosmetic according to claim 1. The content of the component (A) is 0.3 to 5% by mass, the content of the component (B) is 0.1 to 5% by mass, and the content of the component (C) is 1.0 to 10% by mass. The oil-in-water type powder cosmetic according to claim 1. Coolant is 1-menthol, d-menthol, dl-menthol, 1-mentholone, d-mentholone, dl-mentholone, 1-isomenthol, d-isomenthol, dl-isomenthol, 1-neomenthol, d-neo Menthol, dl-neomenthol, l-neoisomenthol, d-neoisomenthol, dl-neoisomenthol, l-menthyl acetate, d-menthyl acetate, dl-menthyl acetate, l-camphor, d-camphor, dl- The oil-in-water powder cosmetic according to any one of claims 1 to 3, which is one or more selected from camphor, 1,8-cineole, peppermint oil, PCA menthyl and menthyl lactate. The blending ratio of each component in the component (A) is 30-50% by mass of (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer and 15-40% by mass of isohexadecane. 4. The oil-in-water powder cosmetic according to any one of 4 above. The blending ratio of each component in component (A) is 35 to 40% by mass of (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer and 20 to 30% by mass of isohexadecane. 4. The oil-in-water powder cosmetic according to any one of 4 above. The oil-in-water type powder cosmetic according to any one of claims 1 to 6, wherein the component (A) contains polysorbate 60 and sorbitan isostearate. The oil-in-water powder cosmetic according to any one of claims 1 to 7 , comprising a higher alcohol or polyglycerin fatty acid ester having 8 to 24 carbon atoms .