JP3484300B2 - Transparent or translucent emulsified cosmetic - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a transparent or translucent emulsified cosmetic composition in which silicone oil is stably blended without any special mechanical treatment.

[0002]

2. Description of the Related Art Conventionally, the problems to be solved by the invention
In the field of cosmetics, silicone oil is positively used as an oil component of cosmetics because it has a fresh and non-sticky feel, has an excellent feeling of use, and is highly safe. However, silicone oil is stably compounded in the system without special mechanical treatment using a high-pressure homogenizer, an emulsifier that gives a strong shearing force such as an ultrasonic emulsifier, and the like.
It was difficult to obtain a transparent or translucent emulsion cosmetic.

Therefore, the present invention provides a transparent or translucent emulsified cosmetic composition which can be produced without special mechanical treatment, stably contains silicone oil, and gives a silky feel peculiar to silicone oil. The purpose is to

[0004]

Under the circumstances, as a result of intensive studies, the present inventors have found that a silicone oil having a specific viscosity and a silicone-based surfactant are combined and blended to make the composition easily transparent. The present invention has been completed based on the finding that an emulsified cosmetic composition having excellent translucent feel can be obtained, and further stabilization can be achieved by further incorporating a hydrophilic surfactant.

That is, the present invention provides the following components (A) to
(C) (A) Silicone oil having a kinematic viscosity of 10 cSt or less at 25 ° C. (B) A silicone surfactant selected from polyether-modified organopolysiloxane, amino-modified organopolysiloxane, and alkylglyceryl ether-modified organopolysiloxane ( C) hydrophilic surfactant, (A) :( B) = 1: 0.01 to 1: 2, (B):
An oil-in-water emulsion cosmetic other than a hair cosmetic, characterized in that (C) is contained in a weight ratio of 1:10 to 1: 0.5 and the appearance is transparent or translucent. .

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, the term "transparent or translucent" means that a transparency of 20 is obtained when a spectrophotometer (UV-160) manufactured by Shimadzu Corporation is used and the transparency of distilled water is set to 100 as a control. Refers to the range of ~ 100.

Examples of the silicone oil having a kinematic viscosity of 10 cSt or less at 25 ° C. of the component (A) include methylpolysiloxane, methylphenylpolysiloxane, methylcyclopolysiloxane, alkyl-modified polysiloxane and fluorine-modified polysiloxane. Especially, those having a kinematic viscosity of 6 cSt or less are preferable. If the viscosity of the silicone oil exceeds 10 cSt, the stability will be significantly reduced.

These components (A) can be used alone or in combination of two or more kinds, and the compounding amount thereof in the emulsion cosmetic of the present invention is not particularly limited and can be appropriately selected according to the dosage form. However, 0.1 to 40% by weight, particularly 0.1 to 20% by weight is preferable.

Examples of the component (B) silicone-based surfactant include polyether-modified organopolysiloxane, amino-modified organopolysiloxane, and alkylglyceryl ether-modified organopolysiloxane. Commercially available products thereof are polyoxyethylene-modified. Methyl polysiloxane KF-351A, KF-353A, KF-354A, KF-355A, KF-6
18A, KF-945A, KF-6011, KF-6013, KF-6015, KF-6016,
KF-6017 (above, Shin-Etsu Chemical Co., Ltd.), SH-3773C, SH-3772
C, SH-3775C (above, manufactured by Toray Silicone Co., Ltd.), polyoxyethylene / polyoxypropylene-modified methylpolysiloxane, KF-352A, KF-615A, KF-6008, KF-6012
(Above, manufactured by Shin-Etsu Chemical Co., Ltd.), amino-modified organopolysiloxanes TSF-4703, TSF-4704 (above, manufactured by Toshiba Silicone Co., Ltd.) and the like. Of these, polyether modified organopolysiloxanes are preferred.

These components (B) can be used singly or in combination of two or more, and the compounding amount thereof in the emulsion cosmetic of the present invention is 20% by weight or less from the viewpoint of safety, It is particularly preferably 10% by weight or less. The weight ratio of the component (A) to the component (B) is (A) :( B) = 1: 0.01 to 1: from the viewpoint of stability.
2, especially from 1: 0.02 to 1: 1 is preferred.

The emulsion cosmetic of the present invention can further stabilize the system by further incorporating a hydrophilic surfactant as the component (C). As such a hydrophilic surfactant, as a nonionic surfactant, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyoxyethylene hydrogenated castor oil laurate, polyoxyethylene isostearic acid hydrogenated castor oil, polyoxy Ethylene hydrogenated castor oil Polyoxyethylene castor oil such as pyroglutamic acid isostearic acid diester or hydrogenated castor oil derivative; polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monopalmitate,
Polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monoisostearate, polyoxyethylene sorbitan tetraoleate and other polyoxyethylene sorbitan fatty acid esters; polyoxyethylene glyceryl monostearate, polyoxyethylene glyceryl monoisostearate, Fatty acid ester of polyoxyethylene glycol such as polyoxyethylene glyceryl triisostearate; polyoxyethylene lauryl ether, polyoxyethylene hexyldecyl ether, polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, polyoxyethylene octyldodecyl ether, Polyoxyethylene behenyl ether, polyoxyethylene nonyl phenyl ether, polyoxy ether Polyoxyethylene alkyl ethers such as polyoxypropylene decyl tetradecyl ether; polyoxyethylene fatty acid esters such as polyoxyethylene monooleate; polyoxyethylene addition type surfactants such as polyglycerin alkyl ethers and polyglycerin Fatty acid ester, sucrose fatty acid ester and the like can be mentioned. As the anionic surfactant,
Polyoxyethylene lauryl ether sulfate triethanolamine and other polyoxyethylene alkyl sulfate-based surfactants; N-acyl amino acid salt-based surfactants such as sodium lauroyl sarcosine and lauroyl methylalanine sodium; Polyoxyethylene lauryl ether sodium phosphate , Sodium polyoxyethylene cetyl ether phosphate, dipolyoxyethylene alkyl ether phosphate, tripolyoxyethylene alkyl ether phosphate, dipolyoxyethylene nonylphenyl ether phosphate, sodium polyoxyethylene lauryl ether phosphate, dipolyoxyethylene Examples thereof include polyoxyethylene alkyl ether phosphate-based surfactants such as sodium lauryl ether phosphate. , Alkylamidobetaine, alkylamidobetaine, etc., as the cationic surfactant, di long chain alkyl quaternary ammonium salt, mono long chain alkyl quaternary ammonium salt, di long chain alkyl polyoxyethylene quaternary ammonium salt, Examples thereof include bis (hydroxyalkyl) quaternary ammonium salt and quaternary ammonium salt having an amide / ester bond. Among these, polyoxyethylene addition type nonionic surfactants are preferable, and those having an ethylene oxide addition mole number of 10 to 60 are particularly preferable.

These components (C) can be used alone or in combination of two or more. Further, the amount of the components (B) and (C) to be added to the emulsion cosmetic of the present invention as the total amount of the surfactant is 20% by weight or less, particularly 10% by weight from the viewpoint of safety.
The following are preferred. From the viewpoint of stability, the weight ratio of the component (B) to the component (C) is preferably (B) :( C) = 1: 10 to 1: 0.5, and particularly preferably 1: 5 to 1: 2.

The emulsified cosmetic composition of the present invention contains the above component (A),
In addition to (B) and (C) and water, the components that are generally blended in the emulsified cosmetic composition can be appropriately blended within a range that does not impair the effects of the present invention. Examples of such components include extenders such as mica, talc, sericite, kaolin, nylon powder, polymethylsilsesquioxane, and barium sulfate; inorganic pigments such as titanium oxide, zinc oxide, and iron oxide;
Powders obtained by surface-treating these powders with silicone, metal soap, N-acylglutamic acid, etc .; solid or liquid paraffin, solid paraffin, microcrystalline wax, petrolatum, ceresin, ozokerite, montan wax, etc. Hydrocarbons; olive, earth wax,
Carnauba wax, lanolin, vegetable oil such as whale wax, animal oil or wax; stearic acid, palmitic acid, oleic acid, glycerin monostearate ester, glycerin distearate ester, glycerin monooleate ester, isopropyl myristate ester, Fatty acids such as isopropyl stearate and butyl stearate or esters thereof; alcohols such as ethyl alcohol, isopropyl alcohol, cetyl alcohol, stearyl alcohol, palmityl alcohol, hexyldecyl alcohol; moisturizing action such as glycol and sorbitol Polyhydric alcohols; whitening agents, analgesic and anti-inflammatory agents, antipruritic agents, antiseptic agents, astringent agents, emollients, hormonal agents, and other medicinal components; methylcellulose, ethylcellulose, Carboxymethylcellulose, polyacrylic acid, tragacanth, agar, thickeners such as gelatin and the like; emulsion stabilizers, chelating agents, UV protecting agents, pH adjusting agents, preservatives, dyes, etc. perfumes.

The emulsified cosmetic composition of the present invention can be manufactured by a conventional method, and its form includes, for example, lotion, beauty essence, cream, milky lotion, makeup remover and the like.

[0015]

The present invention will be described in more detail with reference to examples, but the present invention is not limited thereto.

Examples 1 to 29 and Comparative Examples 1 to 5 Various emulsified cosmetics having the formulations shown in Tables 1 to 3 were produced, and their transparency and feeling of use were evaluated. The results are also shown in Tables 1 to 3.

<Production Method> Components a to n shown in Tables 1 to 3 are mixed,
If necessary, the mixture was heated and dissolved, and a mixture of the components o to w was added dropwise with stirring with a propeller or the like to obtain a cosmetic. At this time, an emulsifying machine that gives a strong shearing force (for example, a high pressure homogenizer, an ultrasonic emulsifying machine, etc.) was not used at all.

<Evaluation Method> Transparency: The transmittance was measured using a spectrophotometer (UV-160) manufactured by Shimadzu Corporation, and the transparency of the distilled water used as a control was set to 75 to 100 or less. Transparent range, 20
The range of 75 or more and less than 75 was determined to be semitransparent. -Feeling of use: An actual use test was conducted by 10 panelists, and the stickiness of the skin after applying the cosmetic to the skin was evaluated. When the number of respondents who answered that it was not sticky was 5 or more, the result was "good", and when the number of respondents was 4 or less, it was "bad".

[0019]

[Table 1]

[0020]

[Table 2]

[0021]

[Table 3]

[0022]

The emulsified cosmetic composition of the present invention is a transparent or translucent cosmetic composition that can be produced without any special mechanical treatment and that contains silicone oil stably.

─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-63-183520 (JP, A) JP-A-6-234918 (JP, A) JP-A-10-29912 (JP, A) JP-A-7- 165529 (JP, A) JP-A-3-44309 (JP, A) JP-A-3-217229 (JP, A) JP-A-4-134013 (JP, A) Cosmetic Science Guidebook, Japan Cosmetic Engineers Association, May 26, 1979, 418-431 (58) Fields investigated (Int.Cl. ⁷ , DB name) A61K ^7/ 00-7/50

Claims (5)

(57) [Claims] 1. The following components (A) to (C) (A) Silicone oil having a kinematic viscosity at 25 ° C. of 10 cSt or less (B) Polyether-modified organopolysiloxane, amino-modified organopolysiloxane and alkylglyceryl ether-modified The silicone surfactant (C) hydrophilic surfactant selected from organopolysiloxane is (A) :( B) = 1: 0.01 to 1: 2, (B):
(C) An oil-in-water emulsion cosmetic other than a hair cosmetic, which is contained in a weight ratio of 1:10 to 1: 0.5 and has a transparent or translucent appearance. 2. The emulsified cosmetic composition according to claim 1, wherein the component (B) is a polyether-modified organopolysiloxane. 3. The emulsified cosmetic composition according to claim 1, wherein the component (C) is a polyoxyethylene addition type nonionic surfactant. 4. The emulsified cosmetic composition according to claim 1, which contains the component (A) in an amount of 0.1 to 20% by weight. 5. The emulsified cosmetic composition according to claim 1, which is a lotion containing 0.5 to 2% by weight of the component (A).