JPH10120529A - Translucent gelatinous skin-cleansing composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject composition having excellent shape-retainability and aging stability and keeping good cleansing power such as the removal of make-up cosmetic by compounding a specific amount of a specific oil to a polyoxyethylene coconut oil fatty acid glycerol ester. SOLUTION: This composition contains 4-10wt.% of a polyoxyethylene coconut oil glycerol ester in combination with 0.05-2wt.% of a liquid oil. The liquid oil is an oil exhibiting liquid or pasty state at 25 deg.C and is preferably olive oil, squalane, liquid paraffin, 2-ethylhexanoic acid triglyceride, etc. The composition can be produced by a conventional process and is suitable for face wash for the removal of make-up cosmetic. The composition can be used for removing make-up cosmetic, etc., attached to a fibrous material of e.g. clothes in addition to the skin-cleansing use.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composition for skin cleansing, and more particularly to a composition for skin cleansing, which has good shape-retaining properties, easily spreads by external force, easily fits on the skin, and has a feeling of use or The present invention relates to a translucent gel skin cleansing composition having excellent permeability to skin details.

[0002]

2. Description of the Related Art There are cleansing cosmetics and massage cosmetics which are applied to the skin for the purpose of removing makeup cosmetics or for massaging the skin. After serving its purpose, it is removed from the skin. These cosmetics are commercially available in the form of oil, oil-in-water or oil-in-water emulsion cream or gel in surfactant-in-oil emulsion. However, these conventional oil-containing cleansing cosmetics and massage cosmetics are sticky at the time of use, and in order to remove residual oil due to the cleansing cosmetics remaining on the skin after use, highly water-soluble soaps and cleansing foams. The face wash required a second face wash. In order to reduce these troubles, cleansing cosmetics using liquid crystal structures composed of hydrophilic nonionic surfactants and gel-type cosmetics using water-soluble polymers using hydrophilic nonionic surfactants are commercially available. Have been. Among the hydrophilic nonionic surfactants used for these, gel-type cosmetics made of water-soluble polymers using polyoxyethylene coconut oil fatty acid glycerin have good detergency, but have a low viscosity, so they retain their shape. However, it has poor drawbacks, is not satisfactory in stability over time, and has a drawback that it is difficult to obtain a highly transparent gel.

[0002]

Means for Solving the Problems In view of such circumstances, the present inventors have conducted intensive studies to solve the above problems, and as a result,
Finally polyoxyethylene coconut oil fatty acid glycerin 4 ~
The present inventors have found that the purpose can be achieved with a translucent gel-like skin cleansing cosmetic containing 10% by weight and a liquid oil of 0.05 to 2% by weight, and completed the present invention.

[0003]

BEST MODE FOR CARRYING OUT THE INVENTION The polyoxyethylene coconut oil fatty acid glycerin used in the present invention is not particularly limited as long as it is commonly used in cosmetics. These are mainly obtained by adding ethylene oxide to coconut oil fatty acid glycerin, and the number of moles added is about 7 to 30. In particular, purified polyoxyethylene coconut oil fatty acid glycerin that has undergone a purification step such as molecular distillation is preferred because of its high odor and color stability over time and good safety. Polyoxyethylene coconut oil fatty acid glycerin is commercially available as Hiber Oil HE (manufactured by Koyo Fine Chemical Co., Ltd.), Glycerox HE (manufactured by Croda), Cetiol HE (manufactured by Henkel).

[0004] One or more of these polyoxyethylene coconut oil fatty acid glycerins may be used, and the compounding amount thereof is 4 to 10% by weight, particularly 5 to 8% by weight.
Is preferred. If the amount is less than 4% by weight, the cleaning effect is not sufficient, and if it exceeds 10% by weight, stability with time and skin safety deteriorate, which is not preferable.

[0005] The liquid oil used in the present invention is a liquid or paste oil at 25 ° C, and is selected from, for example, animal and vegetable fats and oils, hydrocarbons, and higher fatty acid esters of higher alcohols. For animal and vegetable fats and oils, olive oil, jojoba oil, macadamia oil, etc., for hydrocarbons, liquid paraffin, squalane, etc., and for higher alcohol higher fatty acid esters, 2-ethylhexanoic acid diglyceride, 2-ethylhexanoic acid triglyceride, cetyl octanoate, etc. . Among them, olive oil, squalane, liquid paraffin, 2-ethylhexanoic acid triglyceride and cetyl octanoate are preferred.

[0006] These liquid oils can be used alone or in combination of two or more, and can be blended in an amount of 0.05 to 2% by weight based on the total amount of the composition of the present invention, particularly 0.5 to 1%.
% By weight is preferred. If the amount is less than 0.05% by weight, the shape retention of the composition will be poor, and if it exceeds 2% by weight, the transparency will be impaired, which is not preferable.

[0007] The gel-like skin cleansing composition of the present invention can be produced by a conventional method, and is suitable as a facial cleanser for cleaning the skin including the scalp, especially for removing makeup cosmetics. The composition of the present invention includes, as long as the effects of the present invention are not impaired, a medicinal agent, a moisturizing component, an anti-inflammatory agent, a bactericide, a preservative, a UV absorber, an antioxidant, which are commonly used in cosmetics and pharmaceuticals. Agents, fragrances and the like can be added as needed.

[0008]

Next, the present invention will be described with reference to examples, but the present invention is not limited to these examples. Also,
Unless otherwise specified, [%] represents [% by weight]. Examples and comparative examples of the make-up remover shown in Tables 1 to 3 were prepared and evaluated according to a conventional method. The evaluation method will be described.

(Evaluation method) Appearance Each layer (thickness: 2.5 mm) of each of the examples (and comparative examples) was drawn on a white plate provided with a black mark, and the degree of discrimination of the marks was determined as follows through the layers. The evaluation was made according to the above criteria, and it was determined that “semi-transparent” and “semi-transparent” were acceptable. <Judgment criteria> Translucent: Mark can be distinguished. (However, non-transparent) Slightly translucent: Mark is difficult to distinguish. Opaque: Mark cannot be determined.

[0010] 2. Viscosity was measured by a BL type viscometer (25 ° C., using a No. 4 rotor) and evaluated according to the following criteria. <Judgment criteria> ：: 100000 cp or more ○: less than 100,000 cp to 50,000 cp or more ×: less than 50,000 cp

3. Detergency Apply commercially available lipstick evenly over a 2 x 2 cm area of the back of the hand,
After drying for 5 minutes, about 1.0 g of the Example (and Comparative Example) was applied to the entire coated area using a finger in the same manner as a normal cleansing material.
After massaging for 0 second, the body was washed with water and evaluated according to the following criteria. <Judgment Criteria> 良好: Good ○: Somewhat good ×: Poor

4. Stability with time It was left at 40 ° C. for 3 months under light shielding, and the stability of the examples (and comparative examples) was evaluated by visual observation according to the following criteria. The stability was determined based on the presence or absence of separation, cracks, oil grease, and the like. <Judgment criteria> ○: Stable △: Slightly unstable ×: Unstable

[0013]

[Table 1]

The results are shown in Tables 1 to 3. As is clear from the results in Table 1, no liquid oil was added, or 0.0
If it is less than 5% by weight, the translucency is impaired, and the viscosity is low, resulting in poor shape retention. When the liquid oil is blended in an amount exceeding 2% by weight, the viscosity increases, but the translucency of the appearance is impaired and the cleaning effect is lacking.

[0015]

[Table 2] As shown in Table 2, when the content of polyoxyethylene coconut oil fatty acid glycerin is less than 4% by weight, both the detergency and the stability over time are poor. Further, when the polyoxyethylene coconut oil fatty acid glycerin is added in an amount of more than 10% by weight, the transparency and the viscosity are good, but the stability over time is poor.

[0016]

[Table 3]

As is clear from Table 3, the combination effect according to the present invention is recognized to be an effect obtained only in 4 to 10% by weight of polyoxyethylene coconut oil fatty acid glycerin and 0.5 to 2% by weight of liquid oil. Was done.

Example 1 (Cleansing Cosmetic) All components having the following composition were stirred and dissolved to prepare. (Component) (%) Purified polyoxyethylene coconut oil fatty acid glycerin 7.0 (molecular distilled product) Squalane 0.5 Olive oil 0.5 Ethanol 8.0 Concentrated glycerin 5.0 Methyl paraben 0.1 Perfume Appropriate amount Purified water Residual total 100 .0

[0019]

The translucent gel skin cleansing composition containing polyoxyethylene coconut oil fatty acid glycerin and liquid oil according to the present invention is a composition having excellent shape retention and stability over time. It was recognized that it had good detergency such as effect. Further, the composition of the present invention is not limited to skin use,
It is also used to remove make-up cosmetics and the like adhering to textiles such as clothing.

Claims (1)

[Claims] 1. A translucent gel-like skin cleansing composition comprising 4 to 10% by weight of polyoxyethylene coconut oil fatty acid glycerin and 0.05 to 2% by weight of liquid oil.