KR20000060500A - Cosmetic or soap compositions, each containing Ulmus macrocapa or Ulmus pumila, for the prevention of dry skin - Google Patents

Abstract

PURPOSE: A moisturizing cosmetics and a cosmetic soap composition containing Ulmus marcrocapa Hance rhizoma mucus are provided, which prevent skin drying; and show good skin moistue maintaining ability and skin moisture evaporation inhibiting ability; which show also good stability when preserve for a long time. CONSTITUTION: A process for the preparation of Ulmus marcrocapa Hance rhizoma mucus comprises of: pulverizing the Ulmus marcrocapa Hance rhizoma in a size of 10-200mesh; adding distilled water as an extracting solvent in the volume of 10times based on weight ratio; cool-soaking for 24hrs, or extracting for more than 3hrs at more than 50°C, and filtering; concentrating under decompression; re-dissolving the concentrated material in small quantity of distilled water, and precipitating by adding organic solvent; drying the precipitates, and pulverizing to get the Ulmus marcrocapa Hance rhizoma mucus. The moisturizing cosmetics and the cosmetic soap composition contain Ulmus marcrocapa Hance rhizoma mucus 0.1-20.0wt.%.

Description

Cosmetic moisturizing and cosmetic soap composition containing milky skin mucus {Cosmetic or soap compositions, each containing Ulmus macrocapa or Ulmus pumila, for the prevention of dry skin}

The present invention relates to a moisturizing cosmetic composition or cosmetic soap composition for preventing skin drying, and more particularly, to a moisturizing cosmetic composition and cosmetic soap composition for preventing skin drying containing milk extract mucus of milky skin.

Dermatologically, the most important role of the skin is a barrier function to prevent the loss of biological components such as water and electrolytes and to prevent harmful substances from the external environment from entering the skin.

In other words, the skin is exposed to a much drier external environment than the body and plays an important role as a protective film to protect the living body from the external environment. In particular, the outermost stratum corneum in direct contact with the external environment prevents the invasion of physical and chemical harmful components, prevents the loss of internal moisture into the external environment that is drier than the body, and the stratum corneum itself retains adequate moisture for flexibility. Is keeping.

Skin moisture level is about 70% in the dermis, but decreases to the epidermis, about 10-30% in the outermost stratum corneum. The water supplied from the dermis diffuses to the top of the stratum corneum mainly by passive diffusion and is lost to the outside. This is called Trans Epidermal Water Loss (TEWL), and it is known that it prevents the loss of transdermal moisture from the sebaceous component and the epidermal lipid, which are the lipid membrane components of the stratum corneum.

Moisture retention of these stratum corneum is important not only from the viewpoint of biological defense, but also smooth and flexible skin surface is very important from the cosmetic point of view. Therefore, various components in the stratum corneum are involved in showing this function. However, despite this function of the skin, the skin is easy to lose moisture by the addition of harsh external environment, such as wind, cold weather, sunlight, washing face, shaving, and aging, and it is easy to become dry and rough skin.

The most important purpose of using cosmetics is to prevent this and keep your skin smooth and moist. In other words, applying cosmetics to the skin creates an artificial membrane on the skin to prevent external irritation, prevents water loss from inside the skin, and supplies a certain amount of moisture to the skin to help keep the skin smooth and moist.

However, in the conventional cosmetics having a general moisturizing action, it is not easy to have a smooth skin care that is smooth and moist and has no burden on the skin. Moisturizing agents such as water-soluble polyhydric alcohols, sodium pyrrolidone carboxylic acid, urea, amino acids, elastin, etc., which have been used in conventional moisturizing cosmetics, have problems.

In view of these problems, in the case of water-soluble polyhydric alcohols, which are most commonly used as moisturizers in conventional cosmetics, glycerin and soitol, which have three or more OH groups, are very sticky in contrast to excellent moisturizing properties, and make them feel uncomfortable when used, and two OH groups are propylene. Glycols, 1,3-butylene glycol, etc. have side effects when used in large amounts. In addition, pyrrolidone carboxylic acid sodium (PCA-Na), sodium lactate (Na-lactate), and urea, which are natural moisturing factors (NMF), have strong electrolytic properties, which impair the emulsion stability of products such as cosmetics. , Amino acids, collagen, elastin, etc. also have a moisturizing ability, but the moisturizing ability was limited.

On the other hand, the cosmetic soap is a saponified fatty acid obtained by decomposing fat or oil and used as potassium hydroxide, sodium hydroxide, etc., which is used for washing the human body. This cosmetic soap has strong alkalinity in aqueous solution, so if used frequently, it removes excessive sebum components of skin and softens the stratum corneum, causing skin roughness. In other words, the use of alkaline cosmetic soap causes the skin to dry and lose its elasticity, causing the skin to become rough easily.

Various additives have been used to supply moisture and oil to the skin in order to solve the problem of dry skin and roughness caused by the use of the alkaline cosmetic soap. The most common additives are glycerin, sorbitol and natural oils. They form a film on the rough skin surface due to the frequent use of alkaline soaps, thereby inhibiting moisture evaporation on the skin surface to relieve skin dryness. However, these conventional moisturizers have a weak function of adsorbing external moisture to the skin or have only a temporary protective film, so they are easily detached from the surface of the skin due to physical effects.

Therefore, the present inventors conducted a study on dozens of plants containing mucus to find a moisturizer having excellent moisturizing ability without the above problems, while the mucus coming out of milky skin with water improves the skin's moisture retention ability, The present invention has been accomplished by finding out that it can effectively prevent the percutaneous moisture loss and at the same time prevent the above problems.

The present invention grinds the milky skin herb to 10-200 mesh size; 10 times the weight ratio of distilled water was added to the pulverized milky skin powder as an extraction solvent, followed by cooling for 24 hours or extracting at a temperature of 50 ° C. or more for 3 hours and then filtering; The filtered extract was concentrated under reduced pressure; The concentrate was redissolved in a small amount of distilled water and then precipitated by addition of an organic solvent; The present invention relates to a method for producing milky skin mucus by recovering and drying the precipitate, followed by grinding.

The present invention also relates to a moisturizing cosmetic composition for preventing skin drying, which contains 0.1 to 20.0% by weight of milky skin mucus prepared by the above method.

In addition, the present invention relates to a cosmetic soap composition for preventing skin drying, which contains 0.5 to 20.0% by weight of milky skin mucus prepared by the above method.

Milky skin used in the present invention is a dried bark of the elm (Ulmus marcrocapa Hance or Ulmus pumila) belonging to the family Elm. Elm is easily seen in the foothills of central and northern Korea. Milky skin is known to contain flavonoids, saponins, tannins and large amounts of mucus. Yubaekpi extract is known to have astringent action, anti-inflammatory action, antibacterial action. In the treatment of motion, decoctions are eaten during stomach pain and back pain, making plasters and applying them to the wounds. Herbal medicine baekbaekpi has been used in herbal medicine for a long time has been confirmed to be stable to the human body even when ingested in the body and is also an extremely safe plant with little irritation to the skin and mucous membranes.

Milky skin mucus used as a moisturizing method is as follows. First pulverized milk powder is 10 to 200 mesh size; 10 times the weight ratio of distilled water was added to the pulverized milky skin powder as an extraction solvent, followed by cooling for 24 hours or more and extracting for 3 hours or more at a temperature of 50 ° C. or more, and then filtering; The filtered extract was concentrated under reduced pressure; The concentrate was redissolved in a small amount of distilled water and then precipitated by addition of an appropriate organic solvent such as ethyl alcohol. The precipitate was recovered, dried and pulverized to yield an milky skin mucus powder.

In the manufacture of a moisturizing cosmetic for preventing skin dryness, the use amount of the milk extract skin mucus as a moisturizing agent is 0.1 to 20.0% by weight, preferably 0.5 to 10.0% by weight. At 0.1 wt% or less, it is difficult to expect water retention capacity. At 20.0 wt% or more, the feeling of use of the product is heavy and uneconomical.

In the preparation of the cosmetic soap composition for preventing skin drying, the milky skin extract mucus as a moisturizing agent is preferably 0.1 to 20.0% by weight, preferably 1.0 to 10.0% by weight. Less than 0.1% by weight it is difficult to feel the moisturizing effect, when used more than 20.0% by weight, the moisturizing effect is excellent, but the foaming capacity is lowered and the stability during long-term storage is poor.

EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail based on an Example and a comparative example.

Examples 1-3 and Comparative Examples 1-9

Milky skin mucus prepared by the method described above was applied to the basic prescription as shown in Table 1 to prepare a cosmetic composition of Examples 1 to 3 and 1 to 9 in comparison. In the manufacturing method, the aqueous phase component and the oil phase component were heated and dissolved well, and then the oil phase component and the neutralizing agent were slowly added to the aqueous phase component, followed by vigorous stirring, followed by cooling.

Cosmetic Basic Prescription division Raw material name Content (% by weight) Oily ingredient Cetostearyl alcohol mineral oil monostearic acid polyoxyethylene sorbitan sesquioleate sorbitan 2.010.00.70.5 Water component Purified Water Carboxy Vinyl Polymer 78.0 or more appropriate 0.1 Moisturizing Enhancer ＊ Same as Table 2 * Same as Table 2 corrector Triethanolamine 0.1

Experimental Example 1. Moisture retention test of cosmetics by basic prescription

In order to evaluate the moisturizing power of the cosmetic composition, the cosmetic compositions of Examples 1 to 3 and Comparative Examples 1 to 9 were quantitatively applied to the skin, and then the electrical conductivity of the skin was measured to measure skin moisture retention ability. The test method was applied to a cosmetic composition prepared according to Examples 1 to 3 and Comparative Examples 1 to 9 in a constant temperature and humidity room of 22 ° C and a relative humidity of 45% to the inside of each of the 20 subjects under a certain amount (0.03 g / 16 cm 2). After rubbing well, the water content of the skin was measured 2 hours after application. As a measuring device, a skin moisture content measuring device (Skicon 200) measuring electrical conductivity of skin was used.

Skin Electrical Conductivity by Moisturizing Enhancers division Moisturizing Enhancer Content (% by weight) Skin Conductivity (μ / Ω) 2 hours after application Example 1 Milky skin mucus 0.8 42.5 Example 2 Milky skin mucus 8.0 47.3 Example 3 Milky skin mucus 18.0 52.5 Comparative Example 1 Hyaluronic acid 8.0 10.8 Comparative Example 2 Sodium pyrrolidone carboxylate 8.0 2.5 Comparative Example 3 Sodium lactate 8.0 7.9 Comparative Example 4 Collagen 8.0 2.0 Comparative Example 5 Chitin liquid 8.0 5.0 Comparative Example 6 glycerin 8.0 32.0 Comparative Example 7 Sorbitol 8.0 20.5 Comparative Example 8 1,3-butylene glycol 8.0 14.9 Comparative Example 9 Propylene glycol 8.0 10.6

As shown in Table 2, the cosmetic of Examples 1-3 of the present invention is much higher in the electrical conductivity of the skin after 2 hours of application than the cosmetic of Comparative Examples 1-9. Therefore, it can be seen that the cosmetic composition of Example 1-3 is much better than the cosmetic composition of Comparative Example 1-9.

Example 4 and Comparative Example 10. Preparation of Moisture Cream

Next, the oil phase component and the water phase component were heated and dissolved in the composition as shown in Table 3, and then the oil phase component was slowly added to the aqueous phase component while being vigorously stirred, followed by cooling to prepare a moisturizing cream.

Preparation of Moisture Cream division Raw material name Content (% by weight) Example 4 Comparative Example 10 Oily ingredient Cetostearyl alcohol 5.0 5.0 Stearic acid 3.0 3.0 Cholesteryl ester 5.0 5.0 Liquid paraffin 15.0 15.0 Octyldodecanol 4.0 4.0 Glyceryl Monostearate 3.0 3.0 Propylparaben 0.1 0.1 Water component Purified water 54.5 54.5 Milky skin mucus 10.0 glycerin 5.0 Propylene glycol 5.0 Methylparaben 0.2 0.2 Potassium hydroxide 0.2 0.2

Example 5 and Comparative Example 11 Preparation of Milk Croissant

Next, the oil phase component and the aqueous phase component were heated and dissolved in the composition as shown in Table 4, and then the oil phase component and triethanolamine were gradually added to the aqueous phase component, followed by vigorous stirring, followed by cooling, thereby preparing a milk croissant.

Preparation of Milk Croissants division Raw material name Content (% by weight) Example 5 Comparative Example 11 Oily ingredient Cetostearyl alcohol 2.0 2.0 Stearic acid 0.8 0.8 beeswax 0.5 0.5 Squalane 8.0 8.0 Purified jojoba oil 4.0 4.0 Octyldodecanol 2.0 2.0 Monostearic acid polyoxyethylene sorbitan 1.0 1.0 Sesquioleate sorbitan 0.5 0.5 Propylparaben 0.1 0.1 Water component Purified water 73.5 73.5 Milky skin mucus 7.0 Sorbitol 5.0 Sodium pyrrolidone carboxylate 2.0 Carboxy Vinyl Polymer 0.2 0.2 Methylparaben 0.2 0.2 corrector Triethanolamine 0.2 0.2

Experimental Example 2 Moisture Retention Test of Moisture Cream and Milk Lotion

In order to evaluate the moisturizing power of the cosmetic compositions prepared according to Examples 4 and 5 and Comparative Examples 10 and 11, a water retention test was conducted.

The cosmetic composition prepared according to Examples 4, 5 and Comparative Examples 10, 11 in a constant temperature and humidity room of 22 ° C and a relative humidity of 45% was applied well to the inside of each of the 20 subjects under a certain amount (0.03 g / 16 cm 2). After rubbing, the water content of the skin was measured before application, 1 hour after application, and 2 hours after application, and the results are shown in Table 5.

Moisture retention test result division Example 4 Example 5 Comparative Example 10 Comparative Example 11 Skin electrical conductivity before application 6 6 6 6 Skin conductivity after 1 hour of application 42 39 14 11 Skin conductivity after 2 hours of application 36 32 10 7 Moisture retention ranking One 2 3 4

(Electric conductivity unit: μ / Ω)

As shown in Table 5, the cosmetic composition prepared according to Examples 4 and 5 was much higher than the cosmetic composition of Comparative Examples 10 and 11 skin electrical conductivity after 1 hour, 2 hours after application.

That is, it can be seen that the moisture retention ability of the compositions prepared according to Examples 4 and 5 is much better than the cosmetic compositions prepared according to Comparative Examples 10 and 11.

Experimental Example 3. Moisture Evaporation Test of Moisture Cream and Milk Lotion

In order to evaluate the moisturizing power of the cosmetic composition prepared according to Examples 4, 5 and 10, 11, a moisture evaporation test was conducted.

The cosmetic composition prepared according to Examples 4, 5 and Comparative Examples 10, 11 in a constant temperature and humidity room of 22 ° C and a relative humidity of 45% was applied well after applying a predetermined amount (0.03 g / 16cm2) to the inner half of 20 test subjects, respectively. After rubbing, the water evaporation amount of the skin was measured using a water vaporizer for 10 minutes at intervals of 2 minutes, and the results are shown in Table 6.

Water evaporation test result division Example 4 Example 5 Comparative Example 10 Comparative Example 11 Water evaporation after 10 minutes 30% 33% 43% 45% Skin moisture evaporation suppression ranking One 2 3 4

As shown in Table 6, the cosmetic compositions prepared according to Examples 4 and 5 showed much less water evaporation than the cosmetic compositions prepared according to Comparative Examples 10 and 11.

That is, it can be seen that the skin moisture evaporation inhibitory ability of the compositions prepared according to Examples 4 and 5 is much superior to the cosmetic compositions prepared according to Comparative Examples 10 and 11.

As described above, the cosmetic compositions of Examples 4 and 5 containing milky skin mucus are much better in skin moisture retention and skin moisture evaporation inhibiting ability than the cosmetic compositions of Comparative Examples 10 and 11 that do not contain milky skin mucus. Able to know. Therefore, it can be seen that the moisturizing power of the cosmetic composition according to the present invention is excellent thereby.

Examples 6-8 and Comparative Examples 12, 13

The makeup soap compositions of Examples 6 to 8 and Comparative Examples 12 and 13 were prepared by applying the milky skin mucus prepared in Example 1 to the formulation shown in Table 7 below.

Cosmetic soap was prepared through mixing, extrusion, molding, and mold according to a conventional soap manufacturing method.

Preparation of Cosmetic Soap ingredient Example 6 Example 7 Example 8 Comparative Example 12 Comparative Example 13 Soapy (10% by weight of moisture) 97.64 93.14 88.14 93.14 90.14 Butylated hydroxytoluene (BHT) 0.01 0.01 0.01 0.01 0.01 Ethylenediaminetetraacetic acid (EDTA-4Na) 0.05 0.05 0.05 0.05 0.05 Spices 1.50 1.50 1.50 1.50 1.50 Titanium oxide 0.30 0.30 0.30 0.30 0.30 Moisturizer: Milky Skin Mucus 0.50 5.00 10.00 Moisturizer: Glycerin 5.00 3.00 Moisturizer: Palm Nucleated Fatty Acids 5.00

Experimental Example 4. Test of workability, stability and moisturizing power of cosmetic soap

The workability and physical properties of the cosmetic soaps prepared according to the above Examples and Comparative Examples were tested, and the results were determined as follows.

◎: Very good, ○: Good, △: Normal, ×: Poor, ××: Very bad

The cosmetic soaps prepared according to the Examples and Comparative Examples were stored for one month in a 40 ° C. thermostat, and then tested for the degree of discoloration and odor. The results were determined as follows.

(Circle): excellent in stability, (triangle | delta): slight discoloration, x: discoloration and a bad smell

The soaps prepared according to the above examples and comparative examples were diluted with distilled water to form a 5% aqueous solution, and 0.1 ml of the aqueous solution was applied to the inside of the arm at a size of 5 cm × 5 cm. Then, using a skicon 200 (Shicon 200) to determine the water loss over time. At this time, immediately after the sample was applied to 100 and before the application to 40 to determine the water loss over time.

The above test results are shown in Table 8.

Workability, stability, moisturizing power, test results of cosmetic soap division Example 6 Example 7 Example 8 Comparative Example 12 Comparative Example 13 Workability ◎ ◎ ○ × × 40 ℃ stability ○ ○ ○ ○ △

Moisturizing After 5 minutes 10 minutes After 20 minutes After 30 minutes 10082777063 10087817566 10089827867 10081756456 10081766658

As shown in Table 8, it can be seen that the cosmetic soap composition prepared according to Examples 6 to 8 has superior workability and stability moisturizing power compared to the cosmetic soap compositions prepared according to Comparative Examples 12 and 13.

The moisturizing cosmetic composition or cosmetic soap composition according to the present invention has excellent skin moisture retention ability and skin moisture evaporation inhibiting ability, high workability, stability and moisturizing power, and excellent long-term storage stability.

Claims (4)

Milled the milky skin herb to 10-200 mesh size; 10 times the weight ratio of distilled water was added to the pulverized milky skin powder as an extraction solvent, followed by cooling for 24 hours or extracting at a temperature of 50 ° C. or more for 3 hours and then filtering; The filtered extract was concentrated under reduced pressure; The concentrate is redissolved in a small amount of distilled water and then precipitated by addition of an organic solvent; The precipitate is recovered, dried and pulverized to produce milky skin mucus. A skin moisturizing cosmetic composition comprising 0.1 to 20.0% by weight of milky skin mucus prepared by the method of claim 1. The skin-drying moisturizing cosmetic composition according to claim 2, which contains 0.5 to 10.0% by weight of milky skin mucus. A skin soap composition for preventing skin drying, comprising 0.1 to 20.0% by weight of milky skin mucus prepared by the method of claim 1.