JPH09124436A - Oily cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prepare an oily cosmetic having excellent use feeling and storing stability. SOLUTION: This oily cosmetic contains 65-99wt.% liquid oil (e.g. liquid paraffin), 0.1-15wt.% dextrin fatty acid ester (e.g. dextrin palmitate) and 0.1-20wt.% hydrophilic nonionic surfactant (e.g. polyoxyethylene (20) sorbitan monolaurate) as active components. Furthermore, a usual pharmacodynamic agent, a humectant component, an anti-inflammatory drug, a gemicide, an antiseptic agent, an ultraviolet rays absorber, an antioxidant, organic or inorganic powder, coloring matter and perfume, etc., are suitably mixed to prepare a cosmetic such as cleansing, massage, essence, hair oil and sun oil. This oily cosmetic is capable of readily coating and has excellent use feeling and storing stability in contrast to usual oily cosmetics, and is excellent in use feeling and storage stability.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an oily cosmetic,
More particularly, it relates to an oily cosmetic which is excellent in feeling of use and has good storage stability and is useful as a cosmetic such as cleansing, massage, essence, hair oil, sun oil and the like.

[0002]

2. Description of the Related Art Cosmetics such as cleansing, massage, essence, hair oil and sun oil are cosmetics for applying an oil component to the skin or hair. Conventional oily cosmetics using a gelling agent have poor storage stability and have a drawback such as stickiness during application.

[0003]

Under the circumstances, as a result of intensive investigations by the present inventors, an oily cosmetic for skin or hair containing a liquid oil, a dextrin fatty acid ester, and a hydrophilic nonionic surfactant. They have found that a cosmetic product which is easier to apply than conventional oil-based cosmetic products, has an excellent feeling in use, and has good storage stability, and has completed the present invention.

That is, the present invention is an oily cosmetic for skin or hair which contains a liquid oil, a dextrin fatty acid ester and a hydrophilic nonionic surfactant.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail.
The liquid oil used in the present invention may be a raw material usually used for cosmetics, quasi drugs, external preparations for skin, etc., for example, hydrocarbons such as liquid paraffin and squalane, isopropyl myristate, palmityl myristate, trioctane. Glyceryl acid, neopentyl glycol dioctanoate,
Examples thereof include synthetic oils and fats such as isostearyl malate and cetyl octanoate, soybean oil, rapeseed oil, olive oil, vegetable oils and fats such as jojoba oil, animal oils and fats such as lanolin and mink oil, and silicone oils. These are used alone or in combination of two or more. The liquid oil content is preferably 65 to 99% by weight based on the total composition.

Specific examples of the dextrin fatty acid ester used in the present invention include dextrin palmitate, dextrin stearate, dextrin palmitate stearate, dextrin oleate, dextrin isopalmitate, dextrin isostearate. Etc. These are used alone or in combination of two or more. Examples of commercially available products include Leopard KL (dextrin palmitate, manufactured by Chiba Flour Milling Co., Ltd.). The content of the dextrin fatty acid ester is preferably 0.1 to 15% by weight based on the total composition.

Examples of the hydrophilic nonionic surfactant used in the present invention include polyoxyethylene sorbitan fatty acid ester, glycerin fatty acid ester ethylene oxide derivative, propylene glycol fatty acid ester ethylene oxide derivative, and polyethylene glycol- Fatty acid ester, polyoxyethylene alkyl ether, polyoxypropylene alkyl ether, polyoxyethylene alkylphenyl ether, ethylene oxide derivative of polyglycerin fatty acid ester, polyoxyethylene hydrogenated castor oil, polyoxyethylene hydrogenated castor Polyoxyalkylene type nonionic surfactants such as oil fatty acid ester, polyoxyethylene pyroglutamic acid ester, polyoxyethylene glycerin pyroglutamic acid ester; sucrose fatty acid ester; Rukirugurukoshido like; polyglycerol fatty acid esters; fatty Arukiro - Ruamido such like.

More specifically, polyoxyethylene (3
0) hydrogenated castor oil, polyoxyethylene (40) hydrogenated castor oil, polyoxyethylene (50) hydrogenated castor oil, polyoxyethylene (60) hydrogenated castor oil, polyoxyethylene (15) decyl tetradecyl ether, poly Oxyethylene (20) decyl tetradecyl ether, polyoxyethylene (25) decyl tetradecyl ether,
Polyoxyethylene (10) hexyldecyl ether,
Polyoxyethylene (15) hexyldecyl ether,
Polyoxyethylene (20) hexyldecyl ether,
Polyoxyethylene (25) hexyldecyl ether,
Polyoxyethylene (10) octredododecyl ether, polyoxyethylene (16) octredododecyl ether, polyoxyethylene (20) octredododecyl ether, polyoxyethylene (25) octredododecyl ether Tellurium, polyoxyethylene (15) glyceryl monoisostearate, polyoxyethylene (30)
Glyceryl monoisostearate, polyoxyethylene (30) glyceryl triisostearate, polyoxyethylene (40) glyceryl triisostearate, polyoxyethylene (30) trimethylolpropane trimyristate, Polyoxyethylene (20) sorbitan monolaurate, polyoxyethylene (20) monostearate, polyoxyethylene (20) sorbitan monooleate, polyoxyethylene (30) sorbitol tetraoleate, polyoxyethylene (40) Sorbito
Rutetraoleate, polyoxyethylene (10) cetyl ether, polyoxyethylene (15) cetyl ether, polyoxyethylene (20) cetyl ether, polyoxyethylene (25) cetyl ether, rail ether, polyoxy Ethylene (15) oleyl ether, polyoxyethylene (20) oleyl ether, polyoxyethylene (25) oleyl ether, polyoxyethylene (10) nonylphenyl ether, polyoxyethylene (15) nonylphenyl ether Ter, polyoxyethylene (20) nonylphenyl ether, polyoxyethylene (25) nonylphenyl ether, polyoxyethylene (20) cholesteryl ether, polyoxyethylene (30) cholesteryl ether, coconut Oil fatty acid dietanolamide (1 Type 1), coconut oil fatty acid Jietano -
Lamide (1: 2 type), lauric acid diethanolamide, coconut oil fatty acid monoethanolamide, polyoxyethylene coconut oil fatty acid monoethanolamide, and the like. These are used alone or in combination of two or more.

The content of the hydrophilic nonionic surfactant is preferably 0.1 to 20% by weight based on the total composition.

In the present invention, further, a medicinal agent, a moisturizing component, an anti-inflammatory agent, a bactericidal agent, which are usually used in cosmetics and external preparations for skin,
Preservatives, UV absorbers, antioxidants, organic and inorganic powders,
Dyes, fragrances and the like can be added as required.

[0011]

The present invention will be described below with reference to examples.
The present invention is not limited to these examples.

The evaluation method and evaluation criteria are as follows. Evaluation Method and Evaluation Criteria (Storage Stability) The prototype was placed in a thermostat at 20 ° C. and 40 ° C., and one month later, the appearance was visually observed. Evaluation criteria are
It is as follows.

Evaluation Criteria Evaluation Code No difference in appearance at 20 ° C. and 40 ° C. ◎ Little difference in appearance at 20 ° C. and 40 ° C. 〇 Some difference in appearance at 20 ° C. and 40 ° C. What is seen △ There is a clear difference in appearance at 20 ° C and 40 ° C ×

(Usage) 20 girls (specialized paneler)
However, the oily cosmetic was continuously used for 1 week, and the feeling of use was evaluated.

Evaluation Criteria Evaluation Symbol When the number of people who answered good is 18 or more ◎ When the number of people who answered good is 14 to 17 〇 When the number of people who answered good is 8 to 13 △ Those who answered good If there are less than 7 people ×

Example 1 A stock solution having the composition shown in Table 1 was prepared, and Example 1 and Comparative Examples 1 to 1 were prepared.
2 cleansing cosmetics were produced. Table 1 shows the evaluation results by the above evaluation method. From this result, it is understood that the cleansing cosmetic composition of Example 1 is superior in storage stability and usability to those of Comparative Examples 1 and 2.

[0017]

[Table 1]

Example 2 (massage cosmetic) A massage cosmetic was prepared by using the components of the present invention to produce a massage cosmetic. The evaluation was performed by the above method.
All items were excellent evaluations. (% By weight) Dextrin stearate 2.0 Polyoxyethylene glyceryl triisostearate 4.0 Squalane 10.0 Macadamia nut oil 5.0 Isostearyl glycyrrhetinate 0.1 Liquid paraffin balance

Example 3 (Sun oil cosmetic) Sun oil was prepared using the components of the present invention to prepare a sun oil cosmetic. The evaluation was performed by the above method. All items were excellent evaluations. (Wt%) Dextrin myristic ester 0.5 Polyoxyethylene (15) 1.0 Glyceryl monoisostearate 2-dimethylhexyl paradimethylaminobenzoate 3.0 Decamethylcyclopentasiloxane 25.0 Olive oil 60.0 Liquid paraffin residual

Example 4 (Hair oil cosmetics) Hair oils were prepared using the components of the present invention to prepare hair oil cosmetics. The evaluation was performed by the above method. All items were excellent evaluations. (Wt%) Dextrin stearate 3.0 Polyoxyethylene (20) sorbitan monolaurate 1.0 Glyceryl tri-2-ethylhexanoate 40.0 Biosol 0.1 Liquid paraffin Residue

Example 6 (Essence Cosmetic) An essence was prepared using the components of the present invention to produce an essence cosmetic. The evaluation was performed by the above method. All items were excellent evaluations. (Wt%) Dextrin palmitate (Leopard KL) 10.0 Polyoxyethylene (20) oleyl ether 0.5 Isostearyl glycyrrhetinate 0.1 Squalane 20.0 Methyl polysiloxane 2.0 Macadamia nut oil Residue

[0022]

As described above, the oily cosmetic composition of the present invention is a cosmetic composition excellent in usability and storage stability. Also,
By appropriately selecting and blending additive components according to the purpose of makeup, it is possible to obtain a cosmetic material for various purposes, which has extremely high commercial value.

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Claims (1)

[Claims] 1. A liquid oil, a dextrin fatty acid ester,
An oily cosmetic comprising a hydrophilic nonionic surfactant.