KR20050088593A - Composite powder containing cellulose and cosmetic composition comprising the same - Google Patents

Abstract

The present invention relates to a composite powder comprising an alkyl-modified silicone compound, a cellulose and a saccharide compound bonded with a natural moisturizing factor (NMF), and a makeup cosmetic composition comprising the same. The composite powder of the present invention and the cosmetic composition including the same provide comfort to the skin by minimizing the burden on the skin, and have a smooth feeling of spreading without the dryness of the skin and the spreadability is improved, while having excellent malleability and excellent adhesion and makeup persistence.

Description

Manufacturing method of composite powder containing cellulose and cosmetic composition containing same {Composite Powder Containing Cellulose and Cosmetic Composition Comprising the Same}

The present invention relates to a powder and a cosmetic composition comprising the same, and more particularly, to a composite powder comprising an alkyl-modified silicone compound, a cellulose and a saccharide compound bonded with a natural moisturizing factor (NMF), and a makeup cosmetic composition comprising the same. will be.

Cosmetics are largely classified into basic cosmetics, makeup cosmetics, hair cosmetics, and sun care products. Particularly, powders are widely used as makeup products, followed by sun care products. Recently, powder is increasingly used for basic products. In other words, the importance of powder in cosmetics is increasing.

In order to examine the importance of powder, briefly explaining the makeup cosmetics that powder is most used as follows. Looking at the function of make-up cosmetics, it is applied to a part of the body, especially the face to cover up and conceal the flaws of the skin and to give a beautiful color, that is to correct the skin color to beautify the skin. It has the function of protecting the skin such as nutrition supply, astringent effect, moisturizing function, and skin protection from ultraviolet rays. It also has a psychologically stable function.

Makeup cosmetics can be broadly classified into base makeup groups such as foundation, makeup base, two-way cake, and face powder, and partial color cosmetics such as lipstick, eye shadow, nail lacquer, etc. It can be classified into an oil-based type such as a make-up base, a dispersed type such as a skin cover and a lipstick, and a powder type such as a two-way cake or a face powder.

On the other hand, make-up cosmetics have a slight difference depending on the form of the formulation, but generally oily ingredients such as squalane, pigments used to color and cover skin defects, waxes to adjust the point, hardness, and moisturize the skin. It consists of an aqueous component. Among them, the pigment (powder) is a sieving pigment such as talc, mica, sericite, boron nitride, nylon, silica, and polymethyl methacrylate constituting the formulation, and a white pigment such as titanium dioxide and zinc, which has excellent hiding power of skin defects. And color pigments such as iron oxides such as black iron oxide, and other colors such as bluish blue, yellow No. 5 aluminum lake, chromium oxide, ultramarine, statutory tar pigments, and the like.

In particular, pigments (powders) are different in formulation, but in cosmetics, these pigments are used as an important factor in determining the quality of makeup cosmetic products such as concealing skin defects, softness, spreadability, color effects.

More specifically, the general characteristics of the pigment (powder) is that the better the function of concealing skin defects such as titanium dioxide, zincification, etc., the more re-agglomeration occurs, causing the phenomenon of lumping after makeup, very poor malleability It becomes a factor which lowers usability. On the contrary, sericite, mica, silica, etc. have excellent malleability and excellent spreadability, but have poor adhesion and act as a factor of lowering the persistence of makeup. Therefore, the makeup cosmetics are essentially mixed with powder having excellent malleability and powder with excellent adhesion.

Makeup cosmetics have the required function as mentioned above. In other words, it is required to have excellent spreadability and excellent adhesion and sustainability at the same time. Furthermore, the color does not change due to sebum or moisture, that is, the oil-absorbing ability of color-consistency and pigments (powder). Preventing dryness that does not pull skin after makeup is required. In particular, powder formulations such as face powders and two-way cakes, and anhydrous types such as lipsticks and skin covers (stick foundations) are difficult to blend with water-based ingredients such as water, which makes it difficult to solve the phenomenon of pulling the skin after applying it to the skin, that is, drying feeling. . Powder formulations, such as face powders, are poorly usable when water-based ingredients such as water are blended, making the formulations difficult, making them easily aggregate when applied to the skin, and forming stains by sebum, sweat, and the like.

In order to impart the above function, it has conventionally been used by surface treatment with silicon, alkylsilane, fluorine, amino acid, chitosan, metal salt and the like. However, the surface treatment with silicone, alkylsilane, etc. is effective in preventing spreading and reagglomeration, but it is not satisfactory in eliminating adhesion and dryness. When surface treatment with chitosan and metal salts, the adhesion and sustainability can be improved relatively, but it is not effective in eliminating agglomeration and reagglomeration. In addition, when the surface treatment with silicon, amino acid, metal salts, etc., the powder has no great effect in terms of lightness and softness, and especially when used in emulsifiers in oil-in-water type and water-in-oil type.

In particular, in the powder formulation, in order to prevent skin dryness, in general, oily ingredients are used. However, when using a lot of these oily ingredients, it is difficult to give a light and fresh feeling that can be given in water-soluble ingredients.

The present inventors have developed a functional powder that is light and soft to remove the burden on the skin, and has a smooth and spreadable feeling without any skin dryness after being applied to the skin, and has excellent malleability while improving adhesion and makeup persistence as well as dispersibility. As a result of diligent research efforts, it is possible to reduce lightness, spreading, re-agglomeration and softness, and to improve skin dryness, and to improve dispersibility. As an alkyl modified silicone compound having cellulose, a saccharide compound, and a natural moisturizing factor (NMF), The present invention has been completed by confirming that the above-described effects can be achieved by surface treatment.

Therefore, an object of the present invention is to provide a composite powder.

Another object of the present invention is to provide a cosmetic composition.

Other objects and advantages of the present invention will become apparent from the following detailed description and claims.

According to one aspect of the present invention, the present invention provides a composite powder comprising an alkyl-modified silicone compound, a cellulose and a saccharide compound to which a natural moisturizing factor (NMF) is bound.

According to another aspect of the present invention, the present invention provides a makeup cosmetic composition comprising the composite powder and pigment of the present invention described above.

The present inventors have developed a functional powder that is light and soft to remove the burden of the skin, and has a smooth and spreading feeling without the feeling of dryness of the skin after application to the skin, while providing excellent malleability and improving adhesion and makeup persistence as well as dispersibility. As a result of intensive research, it was found that the powder composed of an alkyl-modified silicone compound bonded with cellulose, a saccharide compound, and a natural moisturizing factor (NMF) has the above-described complex function.

The cellulose used as the active ingredient in the composite powder of the present invention is synthetic or natural cellulose, preferably natural cellulose. The most preferred source of the natural cellulose is cotton. More preferably, the cellulose has a bulky density of 190-230 and a water retention of 210-250%. More preferably, the cellulose has a pH (10% solution) of 5.2-6.9 and an average particle size of 30-70 μm. Cellulose gives lightness and softness.

The saccharide compound, which is another active ingredient in the composite powder of the present invention, includes any saccharide compound that has a functional group capable of intra- or intra-molecular hydrogen bonding and can effectively retain moisture. Preferably (i) a monosaccharide compound having a structure of tetrasaccharide, pentose sugar or hexasaccharide; (Ii) polysaccharide compounds formed by combining the above monosaccharide compounds; Or (iii) a sugar alcohol, more preferably a monosaccharide compound or a polysaccharide compound. For example, monosaccharide compounds such as raffinose (pentose), mannose (pentose), galactose (hexapentane) or glucose (hexasaccharide), and polysaccharide compounds formed by a combination thereof. According to a preferred embodiment of the present invention, the saccharide compound is a monosaccharide compound. On the other hand, sugar alcohols that can be used in the present invention are, for example, xyitol, sorbitol, maltitol, lactitol or isomalt, and most preferably xyitol. The saccharide compound acts to enhance skin adhesion and to relieve skin dryness that may occur in powder formulations after application to the skin.

Another effective ingredient in the composite powder of the present invention is an alkyl-modified silicone compound bonded with a natural moisturizing factor (NMF). In the present invention, the alkyl modified silicone having a natural moisturizing factor (NMF) serves to improve the spreadability, prevention of reagglomeration of the pigment, and durability of makeup.

As used herein, the term "Natural Moisturizing Factor (NMF)" refers to a component that prevents water loss from skin cells as being in skin intercellular lipids, ceramides, hyaluronic acid, cholesterol, fatty acids, triglycerides, phospholipids, glycosphing. High lipids, amino acids, linoleic acid, glycoaminoglycans, glycerin, mucopolysaccharides and pyrrolidone carboxylic acids. Most preferably, pyrrolidone carboxylic acid.

In the present invention, the silicone compound substituted (modified) by the natural moisturizing factor means a silicone polymer commonly used in the cosmetic industry. Preferably, the silicone compound is polysiloxane, most preferably dimethyl polysiloxane (dimethicone).

Alkyl modification (ie, substitution) with respect to the silicone compound is preferably performed at a ratio of 0.1-5.0 wt% of the natural moisturizing factor with respect to 100 wt% of the silicone compound.

The most preferable example of the alkyl-modified silicone compound to which the natural moisturizing factor (NMF) is used in the present invention is represented by the following formula (1):

In the present invention, the content of the alkyl-modified silicone compound to which the cellulose, the saccharide compound and the natural moisturizing factor (NMF) are combined is generally 0.5-20% by weight / 0.2-10.0% by weight / 0.1-8.0 based on 100% by weight of the composite powder. % By weight, preferably 0.5-10% by weight /0.2-5.0% by weight / 0.1-5.0% by weight. These weight ratios vary depending on the cosmetic and powder applied, and the composition ratio is very important. The reason is that in the case of titanium dioxide, the cohesiveness is high, and the powder particle size is high so that the content of cellulose and modified silicone is high. This is because the compounding ratio should also be different in consideration of dispersibility in the case of blending the mold with the powder. Most preferably, the weight ratio of the cellulose / saccharide compound / modified alkylsilicon compound should be 10-12 / 2-5 / 2-5 ratio to maximize the effect to be achieved in the present invention.

In addition to the three active ingredients described above, the composite powder of the present invention may include a pigment commonly used in the powder. Depending on the application, in consideration of the safety of the skin and the adhesion of the powder, sieving pigments such as talc, mica, sericite, boron nitride, nylon, silica, polymethyl methacrylate, and combinations thereof are preferable, and require a covering power. In the formulation, white pigments such as titanium dioxide, zincation and the like and combinations thereof are preferable. Generally the pigments in the present invention are 10-99.8% by weight, preferably 60-99% by weight, more preferably 70-95% by weight and most preferably about 90% by weight.

On the other hand, an example of the specific manufacturing process of the composite powder of this invention is as follows:

After heating water, ethanol or a mixture thereof, 10-99 wt% of talc having an average particle size of 1-20 µm having excellent skin adhesion and moldability was added thereto, stirred and dispersed by a homomixer, and then chloride was added thereto. Let the pH be 9-12. In general, in the case of a solid pigment (powder), it exhibits a specific behavior by pH. Particularly, in the case of an oxide-based solid pigment having an isoelectric point, the surface charge of the pigment particles in the pH region higher than the isoelectric point of the pigment at the pH before and after the isoelectric point is shown. It is negatively charged and positively charged in the low pH range, although each pigment has its own isoelectric point, but is usually within the range of 2-12. Therefore, in order to change the surface charge of the pigment into a negative charge to create a condition that the material to be coated can be effectively coated, a small amount of chloride is added so that the pH of the mixed solution is 9-12. 0.5-5.0% by weight of magnesium chloride (MgCl ₂ · 6H ₂ O) is added to form magnesium ions (Mg ^{+ 2} ) to multivalent salt monovalent salt to improve the reactivity of the material to be coated. In this pigment part, 0.5-10.0% by weight of cellulose extracted from cotton is added to the pigment part for light usability, roughness, and air permeability, followed by homomixing for 30 minutes. After adding the weight%, homomixing is performed for 30 minutes, and re-introduces 0.1-5.0% by weight of the alkyl-modified silicone composite powder to improve the malleability of the powder, prevents aggregation and dispersibility, and performs homomixing again for 30 minutes. Cool to room temperature and leave for 12 hours. After washing with water, filtration, drying with hot air and pulverizing to obtain a final composite powder.

Through the above-described series of processes, the powder having the three active ingredients cellulose, a saccharide compound, and an alkyl-modified silicone compound coated on the surface of the sieving pigment is obtained. And, the coating order is based on the surface of the pigment, cellulose, saccharide compounds and alkyl modified silicone compound order is most preferred.

Makeup cosmetic composition of the present invention comprises the above-described composite powder of the present invention and pigments commonly used in the art.

Non-limiting examples of pigments used in the present invention include talc, mica, sericite, boron nitride, nylon, silica, polymethylmethacrylate, mica, bentonite, globules of acrylic resin, titanium oxide, zincated, iron oxide, Ultramarine blue, blue, carbon black, zinc oxide, chromium oxide, chromium hydroxide, alumina, calcium silicate, calcium carbonate and combinations thereof, but are not limited thereto.

In the cosmetic composition of the present invention, the content of the composite powder is generally 1-70% by weight, preferably 1-50% by weight, more preferably 5-40% by weight.

The cosmetic composition of the present invention is a two-way cake, face powder, compact, emulsified foundation, makeup base, skin cover, eye shadow, cheek color, lipstick, lip gloss, lip fix, mascara, eyebrow pencil, sun cream, sun lotion, lotion or Formulations such as creams.

The composite powder of the present invention and the cosmetic composition comprising the same have no dryness of the skin, that is, it maintains moisture for a long time, and the feel is smooth and spreading is improved, and the malleability is excellent while at the same time, the adhesiveness and the makeup persistence are excellent, and above all, the skin Excellent breathability and light weight to minimize skin burden.

Hereinafter, the present invention will be described in more detail with reference to Examples. These examples are only for illustrating the present invention in more detail, it is to those skilled in the art that the scope of the present invention is not limited by these examples in accordance with the gist of the present invention. Will be self-evident.

Example 1-3:

ingredient Content (g) Example 1 Example 2 Example 3 1. Purified water 600.0 600.0 600.0 2. Ethanol 15.0 15.0 15.0 3. Talc 85.0 85.0 - 4. Titanium Dioxide - - 85.0 5. NaOH 1.0 1.0 1.0 6.MgCl ₂ · 6H ₂ O 2.0 3.0 3.0 7. Cellulose Powder 10.0 9.0 7.0 8. Glucose 2.0 5.0 2.0 9. PCA (pyrrolidonecarboxylic acid) dimethicone 3.0 1.0 6.0

Composite powder of the present invention was prepared as follows in the component of Table 1. Ethanol was added to purified water and warmed to 80-85 ° C., then 3 raw materials were added and stirred for 30 minutes with a homomixer. Then, an appropriate amount of NaOH was added to make the pH 9-12, MgCl ₂ .6H ₂ O was added thereto, and the mixture was stirred for 15 minutes. Then, the raw material of 7, 8 was added and stirred for 30 minutes, and the raw material of 9 was added thereto, homomixed for 30 minutes, cooled to room temperature, left to stand for 12 hours, and then washed with water and filtered for 24 hours at 80-90 ° C. It was dried and ground by a grinder.

Test Example 1: Measurement of angle of repose and dynamic friction coefficient

In general, the spreadability is examined by the angle of repose and friction coefficient, which indicates the flowability of the powder. When the angle of repose is 30-40 ㅀ, it gives a smooth feeling. The smaller the coefficient of friction, the better the spreadability. Therefore, in order to measure the angle of repose, the injection angle method was used, which measured the angle between the conical slope and the horizontal plane of the powder piled up through a funnel of constant height, and the coefficient of friction was the lateral pull-type load tester (Nikkei Densoku Co , Ltd.). The powders used below are general cosmetic pigments. The experimental results are shown in Table 2 below.

Survey item Example 1 Example 2 Example 3 Talc Mica Silica (Spherical) Nylon powder Titanium Dioxide (Alkylsilane) Repose 35-40 ° 40-45 ° 35-40 ° 45-50 ° 55-58 ° 30-38 ° 50-54 ° 45-50 ° Dynamic friction coefficient 0.27-0.30 0.29-0.33 0.28-0.32 0.30-0.34 0.42-0.47 0.25-0.27 0.34-0.38 0.30-0.35

In the above result, it depends on the difference of repose angle and friction coefficient of powder in order to give powder spreading and smooth feel. Generally, the angle of repose is 30-40 ° and the smaller the coefficient of friction, the better spreading and smoothness are applied to skin. . Therefore, the composite powder of the present invention is the value that gives the most ideal angle of repose and the coefficient of friction that can be given in the cosmetics can be seen that it can be applied in a smooth and smooth spreading when applying the skin.

Examples 4-6 and Comparative Example 1: Two-Way Cake

The functional composite powder of the present invention was introduced into a two-way cake product to find out its use as a makeup cosmetic composition. The composite powders prepared in Examples 1, 2, and 3 were used as Samples 1, 2, and 3, respectively. Examples 4, 5, and 6 were used, and the existing products were used as comparative examples. Items such as persistence and dry skin were investigated.

ingredient Example 4 Example 5 Example 6 Comparative Example 1 Talc To 100 To 100 To 100 To 100 2. Titanium Dioxide 12.0 12.0 - 12.0 3. Serisite 10.0 10.0 10.0 10.0 4. Calcium Carbonate 1.0 1.0 1.0 1.0 5. Silica 3.0 3.0 3.0 3.0 6. Sample 1 20.0 - 20.0 - 7. Sample 2 - 20.0  - - 8. Sample 3 - - 12.0 - 9. Iron Oxide q.s q.s q.s q.s 10. Ultramarine q.s q.s q.s q.s 11. Liquid paraffin 3.0 3.0 3.0 3.0 12. Lanolin 1.0 1.0 1.0 1.0 13. Hexyllaurate 2.0 2.0 2.0 2.0 14. Dimethicone 3.0 3.0 3.0 3.0 15.preservative q.s q.s q.s q.s 16.Spice q.s q.s q.s q.s

Two-way cake was prepared as follows. 1) The raw material 1-10 was ground by mixing once. 2) The raw materials 11-16 were heated to 80 ° C. Subsequently, 1) and 2) were slowly sprayed to be mixed, dispersed and pulverized.

Test Example 2: Comparison of Use Effect

In order to investigate the effect of using the composite product of the present invention as an example of comparison with the existing product, 50 women of 20-35 years old were compared and evaluated after actual use for 20 days, and the average value of the result was calculated. (See Table 4).

Example Softness Dry skin Adhesion Toilet paper Spreadability Lightness Average Example 4 4.5 4.1 4.0 4.0 4.2 4.5 4.22 Example 5 4.1 4.5 4.2 4.0 3.8 4.0 4.10 Example 6 4.5 4.5 4.3 4.3 4.5 4.5 4.43 Comparative Example 1 3.1 3.0 3.0 3.2 3.3 3.3 3.15

The scores in Table 4 above were calculated based on the following criteria: 5 points, very good; 4 points, good; 3 points, moderate; 2 points, bad; 1 point | piece: Very bad. However, in skin dryness, 5 points are dry, and 1 point is very dry.

As a result, it was found that the prescription using the composite powder according to the present invention showed excellent quality in all items such as lightness, softness, skin dryness, fit, makeup sustainability, spreadability, and the prescription with high cellulose content was light. It has been shown to be effective in improving the feeling of dryness in the formulation with excellent softness and high sugar content.

Example 7 and Comparative Example 2: Face Powder

The functional composite powder of the present invention was introduced into a face powder product, and the composite powders prepared in Examples 1 and 2 were used as Samples 4 and 5, and examples 7 and 8 were used. The items such as lightness, softness, adhesion, blooming (coloring) and skin dryness were investigated.

ingredient Example 7 Example 8 Comparative Example 2 Talc To 100 To 100 To 100 2. kaolin 5.0 5.0 5.0 3. Calcium Carbonate 3.0 3.0 3.0 4. Nylon-12 4.0 4.0 4.0 5. Sample 4 20.0 - - 6. Sample 5 - 20.0 - 7. Yellow Iron Oxide q.s q.s q.s 8. Red Iron Oxide q.s q.s q.s 9. Liquid paraffin 1.5 1.5 1.5 10. Preservative q.s q.s q.s 11. Spices q.s q.s q.s

The face powder was prepared as follows. 1) The raw materials 1-8 were ground by mixing once. 2) The raw material 9-11 was heated to 70 ° C. 2) was slowly sprayed into 1), mixed, dispersed and ground.

Test Example 3: Comparison of Use Effect

The face powders prepared in Examples 7 and 8 and Comparative Example 2 were compared to actual consumers in the same manner as the two-way cake, and the average values of the results are shown in Table 6.

Example Softness Dry skin Adhesion Spreadability Blooming (Color) Lightness Average Example 7 4.6 4.4 4.4 4.3 4.3 4.7 4.36 Example 8 4.4 4.7 4.4 4.3 4.1 4.5 4.36 Comparative Example 2 3.6 3.1 3.4 3.4 3.3 3.4 3.36

The score in Table 6 is calculated on the same criteria as the score in Table 4.

As can be seen from the above results, it can be seen that the face powder product containing the composite powder prepared in the present invention is much superior to the product not containing it, and particularly in softness, adhesion and dryness and lightness. Better results were obtained.

As described above, the functional composite powder composition and the cosmetic containing the same according to the present invention are light in weight, excellent in breathability, and soft to remove skin burden, and effectively retain moisture in saccharides to relieve skin dryness, The surface treatment of the alkyl modified silicone is excellent in malleability and spreadability, and excellent in dispersibility, so that it is evenly applied to the skin by eliminating agglomeration of particles. Furthermore, it has excellent adhesion and improves the quality of products such as improvement of makeup persistence. will be.

As described in detail above, the present invention provides a composite powder and a cosmetic composition comprising the same. The composite powder of the present invention and the cosmetic composition including the same provide comfort to the skin by minimizing the burden on the skin, and have a smooth feeling of spreading without the dryness of the skin and the spreadability is improved, while having excellent malleability and excellent adhesion and makeup persistence.

Claims (10)

A composite powder comprising an alkyl-modified silicone compound, a cellulose and a saccharide compound bonded with a natural moisturizing factor (NMF). The composite powder according to claim 1, wherein the cellulose is a cellulose having a bulky density of 190 to 230 and a water retention of 210 to 250%. According to claim 1, wherein the sugar compound is (i) a monosaccharide compound having a structure of tetrasaccharide, pentose sugar or hexasaccharide; (Ii) polysaccharide compounds formed by combining the above monosaccharide compounds; Or (iii) a sugar alcohol. The method of claim 1, wherein the natural moisturizing factor (NMF) bound to the alkyl-modified silicone compound is pyrrolidonecarboxylic acid, ceramide, hyaluronic acid, cholesterol, fatty acids, triglycerides, phospholipids, glycosphingolipids, amino acids, linoleic acid, A composite powder, characterized in that it is selected from the group consisting of glycoaminoglycans, glycerin and mucopolysaccharides. The composite powder according to claim 1, wherein the silicone compound is polysiloxane. According to claim 1, wherein the silicone compound is 0.1 to 8.0% by weight based on the total weight of the composite powder, the cellulose is 0.5-20% by weight, and the sugar compound is characterized in that it is included in the content of 0.2-10.0% by weight Composite powder. Makeup cosmetic composition containing the composite powder of any one of Claims 1-6, and a pigment. The method of claim 7, wherein the pigment is talc, mica, sericite, boron nitride, nylon, silica, polymethyl methacrylate, titanium mica, bentonite, globules of acrylic resin, titanium oxide, iron oxide, ultramarine blue, bluish blue, carbon A mate-up cosmetic composition, characterized in that it is selected from the group consisting of black, zinc oxide, chromium oxide, chromium hydroxide, alumina, calcium silicate, calcium carbonate and combinations thereof. 8. The makeup cosmetic composition according to claim 7, wherein the content of the composite powder is 1-50% by weight. According to claim 7, wherein the makeup cosmetic composition has a two-way cake, face powder, compact, emulsified foundation, makeup base, skin cover, eye shadow, cheek color, lipstick, lip gloss, lip fix, mascara or eyebrow pencil formulation Makeup cosmetic composition, characterized in that.