JPH0570323A - Emulsified cosmetic - Google Patents

Abstract

PURPOSE:To provide the title cosmetic excellent in emulsion stability, also favorable in the feeling after use such as getting to fit the skin and dampish feeling. CONSTITUTION:The objective cosmetic formulated with, as the essential ingredients, (A) pref. 0.05-20 (esp. 0.05-5)wt.% of a composite of a protein and/or its hydrolyzate (e.g. collagen, lactoglobulin, soybean globulin) and phospholipid (e.g. hydrogenated soybean lecithin, hydrogenated yolk lecithin, soybean lecithin) and (B) at least one kind of compound selected from sterol, its derivatives (e.g. cholesteryl hydroxystearate, lanolin fatty acid cholesteryl), phytosterol and lanolin alcohol at the weight ratio A/B=1:(0.05-2) [esp. 1:(0.1-1)].

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emulsified cosmetic composition which is excellent in emulsion stability and has a good familiarity with the skin and a feeling of use such as moisturizing feeling.

[0002]

BACKGROUND OF THE INVENTION In recent years, many studies on emulsification have been made and many emulsifiers have been developed. However, as a surfactant used in cosmetics, only the surfactant is used. There is a demand for high safety and functionality in terms of feel.

From such a point of view, it has been practiced to incorporate natural emulsifiers such as proteins and phospholipids into cosmetics (Japanese Patent Laid-Open Nos. 58-10512 and 58-20.
1708), these emulsifiers have weak emulsifying power by themselves, and a satisfactory emulsified composition cannot always be obtained.

With regard to this problem, it has been found that the emulsion stability of the protein and the phospholipid can be improved by using it in combination (JP-A-64-52708). However, the effect was not yet sufficient.

Therefore, it is an object of the present invention to provide an emulsified cosmetic composition which is more excellent in emulsion stability and has a good feel.

[0006]

Under such circumstances, the inventors of the present invention have conducted extensive studies and found that a specific sterol is used in combination with a complex of a protein and / or its hydrolyzate and a phospholipid. According to the present invention, it is found that an emulsion cosmetic having further improved emulsion stability as compared with the case where the complex is used alone, good compatibility with the skin, and good feeling in use such as moisturizing feeling can be obtained. completed.

That is, the present invention provides the following components (A) and (B) (A) a complex of protein and / or its hydrolyzate and phospholipid (B) cholesterol and its derivative, phytosterol and lanolin alcohol Or, it relates to an emulsified cosmetic containing two or more kinds.

The protein used in the production of the component (A) to be incorporated in the emulsified cosmetic composition of the present invention includes proteins obtained from plants and animals such as soybean protein, wheat protein, whey powder, soybean casein, fibroin and glucagon. , Collagen, gelatin, elastin, ovalbumin, milk casein, myosin, fibrinogen, alkali metal salts thereof, and the like, and the hydrolysates thereof include those obtained by hydrolase treatment.

The phospholipid used for the production of the component (A) to be incorporated in the emulsified cosmetic composition of the present invention is a natural phospholipid extracted from animals and plants such as egg yolk, soybean and corn, and microorganisms such as Escherichia coli. And their hydrogenates and synthetic phospholipids. Specific examples include phosphatidylcholine, phosphatidylinositol, phosphatidylylethanolamine, phosphatidylserine, sphingomyelin, phosphatidylglycerol, and dipalmitoylphosphatidylcholine.

The complex of the protein (A) and / or its hydrolyzate (hereinafter referred to as "proteins") and the phospholipid is produced as follows, for example. That is,
0.1 to 50 parts by weight of phospholipid is added to 1 part by weight of proteins, mixed, purified water is added to the mixture, ultrasonic treatment is performed, and then the complex of component (A) is obtained. can get.

The composite of the component (A) can be used alone or in combination of two or more kinds, and the blending amount thereof is sufficient to obtain sufficient emulsion stability and prevent stickiness, and the emulsion of the present invention. 0.05 to 20% by weight in cosmetics, especially 0.05
-5% by weight is preferred.

Among the sterols as the component (B) to be blended in the emulsified cosmetic composition of the present invention, examples of cholesterol derivatives include dihydrocholesterol, cholesteryl hydroxystearate, and lanolin fatty acid cholesteryl.

In order to obtain the effect of improving the emulsion stability, the blending amount of the sterols as the component (B) in the emulsified cosmetic composition of the present invention is based on 1 part by weight of the composite of the component (A).
0.05 to 2 parts by weight, particularly 0.1 to 1 part by weight is preferred.

The oil phase component used in the emulsified cosmetic composition of the present invention may be any one that can be used in ordinary cosmetics, for example, vegetable oils such as olive oil and castor oil;
Examples thereof include waxes such as beeswax, candelilla wax and wooden wax; hydrocarbons such as liquid paraffin, squalane, petrolatum and paraffin wax; and lanolin, ester oil, silicone oil and the like.

In the emulsified cosmetic composition of the present invention, purified water, a pH adjusting agent, a preservative, a thickening agent, a moisturizing agent, and the above-mentioned (B ) Ingredients other than oily ingredients, fragrances, antioxidants, surfactants, organic / inorganic powders, etc. which are usually used in cosmetics can be appropriately blended, and beauty essence, emulsion, cream, lotion, pack , Basic cosmetics such as cleansing, hair styling, hair cosmetics such as rinse, makeup cosmetics such as foundation, mascara and eyeliner.

[0016]

EXAMPLES The present invention will be further described below with reference to examples, but the present invention is not limited thereto.

Production Example 1 Production of protein-phospholipid complex: The components shown in Table 1 below were thoroughly stirred with a homomixer,
It was made into a uniform suspension. Then, this was subjected to ultrasonic treatment for 30 minutes using an ultrasonic homogenizer. The treatment liquid was dried to obtain composites A, B and C.

[0018]

[Table 1]

Example 1 Based on the formulation shown in Table 2, the composite A obtained in Production Example 1 was used.
After adding and dissolving in purified water at 0 ° C, the liquid paraffin and sterols which were mixed and heated to 70 ° C were added while stirring at 5000 rpm on a desktop emulsifier, and stirred for 10 minutes to obtain an emulsion. It was This emulsion was placed in a 30 ml graduated cylinder and allowed to stand at 50 ° C., and the emulsified state after 1 week was evaluated according to the following criteria. The results are shown in Table 2. ◯: Separation is not observed Δ: Some separation is observed ×: Separation is recognized

[0020]

[Table 2]

As is clear from the results shown in Table 2, Examples 1- (1) to (3) in which sterols were blended together with the composite.
The emulsion of Example 1 has improved emulsion stability as compared with the emulsion of Comparative Example obtained by emulsifying the complex alone.

Example 2 Emulsion: (Formulation) (wt%) (1) Complex B 1.0 (2) Cholesteryl hydroxystearate 0.5 (3) Squalane 8.0 (4) Olive oil 2.0 (5 ) Carboxyvinyl polymer 0.12 (6) Sodium hydroxide 0.03 (7) Preservative 0.5 (8) 1,3-butylene glycol 10.0 (9) Purified water residual amount (production method) A. (1) and (5) to (9) are heated and dissolved at 70 ° C. B. (2) to (4) are heated and dissolved at 70 ° C. C. Add B to A and emulsify. D. Cool to product.

Example 3 Cream: (Formulation) (wt%) (1) Complex C 3.0 (2) Cholesterol 2.0 (3) Liquid paraffin 10.0 (4) Jojoba oil 10.0 (5) Vaseline 3.0 (6) Geyrow 2.0 (7) Carboxyvinyl polymer 0.15 (8) Sodium hydroxide 0.04 (9) Preservative 0.5 (10) Glycerin 3.0 (11) 1,3 -Butylene glycol 10.0 (12) Purified water residual amount (manufacturing method) A. (1) and (7) to (12) are heated and dissolved at 70 ° C. B. (2) to (6) are heated and dissolved at 70 ° C. C. Add B to A and emulsify. D. Cool to product.

Example 4 Suncut Milk Lotion: (Formulation) (wt%) (1) Complex B 2.0 (2) Phytosterol 1.0 (3) Liquid Paraffin 3.0 (4) Glyceryl Trioctanoate 3. 0 (5) Vaseline 0.5 (6) Ultraviolet absorber 5.0 (7) Sorbitan sesquioleate 0.05 (8) Monooleate polyoxyethylene sorbitan (20E.O.) 0.2 (9) Oxidation Titanium 3.0 (10) Carboxyvinyl polymer 0.15 (11) Sodium hydroxide 0.04 (12) Preservative 0.5 (13) 1,3-butylene glycol 10.0 (14) Purified water balance ( Manufacturing method) A. (1) and (10) to (14) are heated and dissolved at 70 ° C. B. (2) to (9) are heated and dissolved at 70 ° C. C. Add B to A and emulsify. D. Cool to product.

Example 5 Hair Rinse: (Formulation) (wt%) (1) Complex B 2.0 (2) Lanolin fatty acid cholesteryl 2.0 (3) Liquid paraffin 2.0 (4) Isopropyl myristate 1.0 (5) Silicon oil 3.0 (6) Cationized cellulose 0.1 (7) Preservative 0.5 (8) 1,3-butylene glycol 10.0 (9) Purified water residual amount (production method) A. (1) and (6) to (9) are heated and dissolved at 70 ° C. B. (2) to (5) are heated and dissolved at 70 ° C. C. Add B to A and emulsify. D. Cool to product.

Example 6 Emollient Cream: (Formulation) (wt%) (1) Complex A 5.0 (2) Complex C 5.0 (3) Cholesterol 1.0 (4) Liquid Paraffin 15.0 ( 5) Cetanol 3.0 (6) Polyhydric alcohol 10.0 (7) Xanthan gum 0.05 (8) Preservative 0.5 (9) Purified water Remaining amount (Production method) A. (1), (2) and (6) to (9) are heated and dissolved at 70 ° C. B. (3) to (5) are heated and dissolved at 70 ° C. C. Add B to A and emulsify. D. Cool to product.

Example 7 Liquid Foundation: (Formulation) (wt%) (1) Complex C 3.0 (2) Lanolin Alcohol 1.0 (3) Stearic Acid 2.0 (4) Cetanol 1.0 (5 ) Liquid paraffin 5.0 (6) Vaseline 7.0 (7) Purified water remaining (8) Triethanolamine 1.0 (9) Carboxymethylcellulose 0.2 (10) Glycerin 5.0 (11) Preservative 0 .3 (12) Titanium oxide 3.0 (13) Talc 5.5 (14) Color pigment 1.0 (15) Perfume proper amount (production method) A. (2) to (6) and (12) to (15) are heated and dissolved at 70 ° C. B. (1) and (7) to (11) are heated and dissolved at 70 ° C. C. Add A to B and emulsify. D. Cool to product.

The emulsified cosmetics obtained in Examples 2 to 7 all have a good emulsified state and excellent stability over time, and also have a good feeling such as "good fit to the skin" and "moist feeling". Met.

[0029]

As described above, the emulsified cosmetic composition of the present invention is
It has excellent emulsion stability and is "good for the skin."
The feeling of use such as "moist feeling" is also good.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Midori Hirobe 48-18 Sakaemachi, Kita-ku, Tokyo Kose Research Institute, Inc. (72) Inventor Kazura Adachi 48-18 Sakaemachi, Kita-ku, Tokyo Kose Co., Ltd. -In the laboratory

Claims (1)

[Claims] 1. The following components (A) and (B) (A) Complex of protein and / or hydrolyzate thereof and phospholipid (B) Cholesterol and its derivative, phytosterol, and one or two kinds of lanolin alcohol. An emulsified cosmetic containing the above.