JPH11279044A - Cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a cosmetic good in the degree of transparency or cloudiness and capable of manifesting excellent feeling of use and preservation stability by dissolving a nonionic surfactant and an oily substance in phenoxyethanol and/or phenethyl alcohol and then mixing the resultant solution with water. SOLUTION: This cosmetic is obtained by dissolving (B) a nonionic surfactant [e.g. a polyethylene glycol ester of a fatty acid having >=8 value of hydrophile- lipophile balance(HLB) in the polyglyethylene glycol esters of the fatty acids, etc.], and (C) an oily substance (preferably tocopherol or its derivative) in (A) phenoxyethanol and/or phenethyl alcohol then mixing the resultant solution with (D) water. The amounts of the formulated ingredients based on the total cosmetic composition are preferably 0.01-2.0 wt.% ingredient A, 0.02-4.0 wt.% ingredient B and 0.01-1.0 wt.% ingredient C. Thereby, the resultant cosmetic is good in compatibility without causing stickiness in use.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cosmetic having a good appearance from transparent to cloudy, and having excellent storage stability and feeling of use.

[0002]

2. Description of the Related Art Conventionally, cosmetics having a transparent appearance include a lotion and a hair styling agent obtained by dissolving a hydrophilic surfactant and an oily substance such as a fragrance in ethyl alcohol or polyhydric alcohol and then mixing the resultant with water. , Shaving lotions, etc., as cosmetics whose appearance becomes cloudy, those obtained by emulsifying and dispersing an oil phase component and a surfactant in an aqueous phase component,
There are known those obtained by dissolving a surfactant and an oily substance in ethyl alcohol and dispersing the oil phase component in an aqueous phase component.

[0003]

However, in the case of conventional cosmetics having a transparent or cloudy appearance, it is difficult to select a manufacturing method and a surfactant, and it is difficult to obtain a transparent to cloudy appearance by one technique. And had a disadvantage that storage stability was poor. In addition, cosmetics having a transparent appearance have problems such as skin irritation due to ethyl alcohol and stickiness when used with polyhydric alcohol, and cosmetics having an opaque appearance improve the storage stability by adding a water-soluble thickener. There was a problem that it was necessary and was sticky in terms of usability and that it was not familiar.

[0004]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies to obtain cosmetics free from the above-mentioned problems, and as a result, have dissolved a nonionic surfactant and an oily substance in phenoxyethanol and / or phenethyl alcohol. After doing
It has been found that by mixing with water, a cosmetic having good transparency or turbidity and excellent storage stability and feeling of use can be obtained, and completed the present invention.

[0005] That is, the present invention is a cosmetic obtained by dissolving a nonionic surfactant and an oily substance in phenoxyethanol and / or phenethyl alcohol, and then mixing the resultant with water.

[0006]

Embodiments of the present invention will be described below. Phenoxyethanol used in the present invention is also called ethylene glycol monophenyl ether and is a colorless and transparent viscous liquid. The phenethyl alcohol used in the present invention is also called β-phenylethyl alcohol and is a colorless and transparent viscous liquid. The phenoxyethanol and / or phenethyl alcohol of the present invention is usually added in the range of 0.01 to 2.0% by weight (hereinafter simply indicated as%) based on the total composition of the cosmetic of the present invention. If the amount is less than 0.01%, dissolution may be difficult, and if the amount is more than 2.0%, the feeling of use may not be favorable.

The nonionic surfactant used in the present invention is, for example, polyethylene glycol fatty acid ester,
Polyoxyethylene sorbit fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene hydrogenated castor oil, polyoxyethylene hydrogenated castor oil fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene sorbit beeswax , Polyoxyethylene glycerin fatty acid ester, polyoxyethylene trimethylolpropane fatty acid ester, polyglycerin fatty acid ester, glycerin fatty acid ester, sorbitan fatty acid ester, propylene glycol fatty acid ester, etc., whose HLB value is 8 or more. 0.0 to the total composition of the cosmetic of the invention
It is blended in the range of 2 to 4.0%. If the HLB value is less than 8 or the blending amount is less than 0.02%, a stable transparent or cloudy appearance is difficult to obtain, and if the blending amount exceeds 4.0%, the feeling of use may not be preferred. The amount of the hydrophilic surfactant used in the present invention is preferably in the range of 0.1 to 10 times the amount of the oily substance used in the present invention. If it is less than 0.1 times, it is difficult to obtain a stable transparent or cloudy appearance, and if it exceeds 10 times, the feeling of use may not be preferred. In addition,
The nonionic surfactant is phenoxyethanol and / or
Alternatively, it is necessary for the cosmetic of the present invention to dissolve it in phenethyl alcohol.

The oily substance used in the present invention includes cosmetics,
What is usually used for pharmaceuticals and the like may be used, for example, olive oil, rice bran oil, animal and vegetable oils such as squalane, liquid paraffin, mineral oils such as petrolatum, silicone oil, higher alcohol higher fatty acid esters, higher alcohols, Higher fatty acids, cholesterol fatty acid esters, dialkyl carbonates, fragrances, fat-soluble vitamins, and the like are used, and these are used alone or in combination of two or more. Particularly preferred are tocopherol and derivatives thereof. Is included. Examples of these tocopherols or derivatives thereof include tocopherols such as α-tocopherol, β-tocopherol, γ-tocopherol, and δ-tocopherol, and derivatives thereof such as acetates, succinates, nicotinates, and higher fatty acid esters. . The compounding amount of the oily substance used in the present invention is usually from 0.01 to the total composition of the cosmetic of the present invention.
It is blended in a range of 1.0%. If it is less than 0.01%, it is difficult to obtain a stable transparent or cloudy appearance, and if it is more than 1.0%, the feeling of use may not be preferred.

The amount of water can be appropriately selected according to the purpose of use of the present invention and appropriate physical properties.

[0010] In the present invention, furthermore, a medicinal agent, a moisturizing component, an anti-inflammatory agent, a bactericide, a preservative, an ultraviolet absorber, an antioxidant, an organic and inorganic powder, which are commonly used in cosmetics, pharmaceuticals, etc.
Dyes and the like can be added as needed.

[0011]

EXAMPLES The present invention will be described below with reference to examples, but prior to that, an evaluation method will be described. Note that the present invention is not limited to these examples.

Evaluation method (Storage stability) The prototype was placed in a thermostat at 20 ° C. and 40 ° C., and observed one month later.

(Feeling of use) The feeling of use (non-stickiness, familiarity) after 20 women (panelers) have used for a week continuously
Was evaluated according to the following criteria.

Examples 1 to 3 and Comparative Examples 1 and 2 (Transparent Moisturizing Lotion) The transparent moisturizing lotions shown in Table 1 were prepared by the following production methods. (Production method) Each component (A) in the table is uniformly mixed and dissolved. The components (B) in the table are uniformly mixed and dissolved.
(A) is added to (A) with stirring to obtain each transparent moisturizing lotion. This was used as a sample and evaluated according to the above evaluation method. Table 1 shows the results.

[0015]

[Table 1]

From Table 1, it can be seen that the product of the present invention has a transparent appearance, is not sticky, has good conformability, and is excellent in storage stability.

Examples 4 to 5 and Comparative Examples 3 to 4 (anti-opaque anti-aging lotion) Lotion-preventing anti-opaque lotions having the compositions shown in Table 2 were prepared in the same manner as in Table 1.

[0018]

[Table 2]

From Table 2, it can be seen that the product of the present invention is excellent in storage stability, non-stickiness and conformability during use.

Example 6 (Cloudy after-shaving lotion) A cloudy after-shaving lotion having the composition shown in Table 3 was prepared.

[0021]

[Table 3]

From Table 3, it can be seen that the product of the present invention is excellent in storage stability, non-stickiness during use, and good conformability.

[0023]

As described above, according to the present invention, it is possible to provide a cosmetic which has a good appearance, is not sticky at the time of use, has good conformability, has an excellent feeling in use, and has excellent storage stability. it is obvious.

Claims (2)

[Claims] 1. A cosmetic obtained by dissolving a nonionic surfactant and an oily substance in phenoxyethanol and / or phenethyl alcohol and mixing with water. 2. The cosmetic according to claim 1, wherein the oily substance is one or more of tocopherol or a derivative thereof.