JP3446173B2 - Cloudy cosmetic - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a cloudy cosmetic composition,
More specifically, it relates to a cloudy cosmetic which is excellent in cloudiness stability and does not cause coloring or odor over time even under high temperature conditions.

[0002]

BACKGROUND OF THE INVENTION White turbid cosmetics containing a small amount of oil emulsified and blended with them give a more appropriate emollient and moisturizing feel to the skin than ordinary solubilized transparent cosmetics, and are therefore used especially for dry skin. ing. When a nonionic and / or anionic surfactant having an unsaturated bond in the carbon chain of the fatty acid portion or the alkyl portion is used as an emulsifier,
Not only excellent cloudiness and emulsion stability over time, but also excellent sensory characteristics such as moisturizing the skin after use, so as a non-ionic having an unsaturated bond in the carbon chain of the fatty acid portion or alkyl portion as an emulsifier for cloudy cosmetics. And / or anionic surfactants are commonly used.

[0003]

However, a nonionic and / or anionic surfactant having an unsaturated bond in the carbon chain of a fatty acid moiety or an alkyl moiety is, under high temperature conditions, due to the unsaturated bond. In some cases, coloring or odor was generated with the oxidation reaction over time. Therefore, various antioxidants such as dibutylhydroxytoluene, butylhydroxyanisole and vitamin E, and various sequestering agents such as sodium citrate, EDTA, sodium polyphosphate and hydroxyethanediphosphonic acid have been used. However, the effect is not sufficient, and sometimes the cloudy emulsion stability is adversely affected. Therefore, it is a cloudy cosmetic in which a nonionic and / or anionic surfactant having an unsaturated bond in the carbon chain of a fatty acid portion or an alkyl portion is used as an emulsifier, and it is colored with time even under high temperature conditions. It has been desired to develop a product that does not cause a strange odor.

[0004]

Means for Solving the Problems As a result of intensive studies in view of the above circumstances, the present inventor has found that a nonionic and / or anionic surfactant having an unsaturated bond in the carbon chain of a fatty acid portion or an alkyl portion is selected. In the cloudy cosmetic used as an emulsifier, it was found that the above problem can be solved by incorporating glycylglycine, and the present invention has been completed. That is, the present invention contains, as the component (A), a nonionic and / or anionic surfactant having an unsaturated bond in the carbon chain of the fatty acid portion or the alkyl portion, and as the component (B), glycylglycine 0 The cloudy cosmetic composition is characterized by containing 0.01 to 1% by weight. The cloudy cosmetic of the present invention has a transmittance at 700 nm of 40% or less when the distilled water is 100%.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The nonionic and / or anionic surfactant having an unsaturated bond in the carbon chain of the fatty acid portion or the alkyl portion of the component (A) of the present invention is usually used in cosmetics. It is not particularly limited as long as it is one, for example, sorbitan monooleate, sorbitan sesquioleate, glyceryl monooleate, polyoxyethylene castor oil, polyoxyethylene oleyl ether, polyoxyethylene sorbitan monooleate, polyoxyethylene glyceryl monooleate. Examples thereof include oleate, sodium oleate, sodium oleyl phosphate, polyoxyethylene oleyl ether phosphate, sodium polyoxyethylene oleyl ether phosphate, and dipolyoxyethylene oleyl ether phosphate. The above surfactant is
One kind or a mixture of two or more kinds can be used.

In the glycylglycine of the component (B) of the present invention, two amino acid glycines are dehydrated between one carboxyl group and the other amino group to form an acid amide bond,
That is, it is a compound formed by forming a peptide bond.

The content of the component (B) is preferably 0.01 to 1% by weight (hereinafter simply referred to as "%"). If the content of the component (B) is less than 0.01%, the effect of suppressing coloring and odor associated with the oxidation reaction is insufficient, while if the content exceeds 1%, the cloudiness and emulsion stability may deteriorate. , It may have a bad influence on sensory characteristics such as sticky skin after use.

The weight ratio (A) / (B) of the component (A) and the component (B) is preferably in the range of 0.5 to 20. Within this range, the effects of the present invention are remarkably exhibited. To do.

In addition to the above-mentioned components, the cloudy cosmetic of the present invention generally contains other components such as surfactants, oils, water-soluble polymers, humectants, medicinal ingredients, pigments, etc. Fragrances and the like can be added within a range that does not impair the effects of the present invention.

The cloudy cosmetic of the present invention is a skin care product,
It can be used for hair care products and the like.

[0011]

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

Examples 1 to 3 and Comparative Examples 1 to 4 White turbid lotions having the compositions shown in Table 1 below were produced and evaluated for stability over time. In the examples and comparative examples,% means% by weight.

[0013]

[Table 1]

(Manufacturing method) A: Components 1 to 5 and 10 are mixed and dissolved. B: Components 6 to 9, 11 and 12 are mixed and dissolved. C: A was added to B and mixed uniformly to obtain a cloudy lotion.

(Stability over time) The above cloudy lotion was left for 1 month in a constant temperature bath with a fluorescent lamp at 50 ° C., and the appearance was changed (white cloudy state, presence or absence of coloration) and presence or absence of odor according to the following criteria. evaluated. 1. Cloudy state [Evaluation] ○: No change. Δ: Creaming (aggregation of emulsion particles) is slightly observed. X: Separation or creaming of oil is clearly observed. 2. Presence or absence of coloring [Evaluation] ○: No change. Δ: Slight coloring is observed. X: Coloring is clearly recognized. 3. Presence of odor [Evaluation] ○: No change. Δ: Slight odor is observed. X: A strange odor is clearly recognized. The results of these evaluations are shown in Table 2.

[0016]

[Table 2]

As is clear from the results shown in Table 2, the cloudy lotion of the present invention is stable over time with no change in appearance (change in cloudiness, coloration) and no odor under high temperature conditions of fluorescent lamp irradiation. It had excellent properties. On the other hand, in the comparative example, none satisfying all the items was obtained.

[0018]   Example 4 Cloudy gel cleansing agent       (Component) (%)   1. Sorbitan monooleate 0.2   2. Monooleic acid polyoxyethylene       Sorbitan (20EO) 0.2   3. Cetyl tri-2-ethylhexanoate 0.5   4. Polyoxyethylene (5EO)       Coconut oil fatty acid monoethanolamide 0.3   5. Fragrance suitable amount   6. Ethanol 10.0   7.1,3-butylene glycol 5.0   8. Glycerin 2.0   9. Carboxy vinyl polymer 0.1 10. Triethanolamine 0.03 11. Preservative Suitable amount 12. Xanthan gum 0.1 13. Glycylglycine 0.1 14. Purified water Remaining amount

(Production Method) A: Components 1 to 6 are mixed and dissolved. B: Components 7 to 14 are mixed and dissolved. C: A was added to B and mixed uniformly to obtain a cloudy gel-like cleansing agent. Example 4 was a gel-like cleansing agent excellent in white turbidity stability, which did not cause coloring or odor with time even under high temperature conditions.

[0020]   Example 5 Cloudy hair lotion       (Component) (%)   1. Decaglyceryl trioleate 0.15   2. Monooleic acid polyoxyethylene       Sorbitan (20EO) 0.25   3. Isopropyl myristate 0.5   4. Polyoxyethylene (8EO)       Oleyl ether phosphoric acid 0.3   5. Fragrance suitable amount   6. Ethanol 15.0   7. Diglycerin 2.0   8. Hydrolyzed keratin solution 0.1   9. Preservative Suitable amount 10. Glycylglycine 0.2 11. Purified water Remaining amount

(Production Method) A: Components 1 to 6 are mixed and dissolved. B: Components 7 to 11 are mixed and dissolved. C: A was added to B and mixed uniformly to obtain a cloudy hair lotion. Example 5 was a hair lotion having excellent white turbidity stability with no coloration or odor under high temperature conditions.

[0022]

EFFECTS OF THE INVENTION The cloudy cosmetic of the present invention is colored with time by a nonionic and / or anionic surfactant having an unsaturated bond in the carbon chain of a fatty acid portion or an alkyl portion used as an emulsifier. It has excellent white turbidity stability and does not cause odor even under high temperature conditions.

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Claims (2)

(57) [Claims] 1. A nonionic and / or component (A) having an unsaturated bond in the carbon chain of a fatty acid moiety or an alkyl moiety.
Alternatively, an opaque white cosmetic containing an anionic surfactant and 0.01 to 1% by weight of glycylglycine as the component (B). 2. A weight ratio (A) / of the component (A) and the component (B).
(B) is the range of 0.5-20, The cloudy cosmetics of Claim 1 characterized by the above-mentioned.