KR100564226B1 - Method for producing a composition for selective sebum control - Google Patents

Abstract

The method for preparing a selective sebum control composition of the present invention includes the steps of impregnating the sebum inhibitor into the porous powder by adding and mixing the sebum inhibitor and the porous powder in a solvent, and filtering and drying the porous powder impregnated with the sebum inhibitor. When applying a cosmetic such as a two-way cake containing the sebum inhibitor impregnated porous powder composition to the face, not only does not control the sebum depending on the amount of sebum secretion, it can also reduce facial pulling or bleeding.

Description

Method for producing a composition for selective sebum control

The present invention relates to a method for producing a selective sebum control powder and a powdery tincture cosmetic containing the powder. More specifically, the present invention relates to a method for producing a powdery tint cosmetic that can selectively control sebum according to the state of sebum secretion by using a porous sebum inhibitor such as porous silica, porous cellulose and organic germanium.

Powder color cosmetics are mixed with various powders, which are the main ingredients, in a ribbon mixer or Henschel mixer, optionally sprayed with an appropriate amount of oil binder (Oil Binder) on the mixed powder, and then pulverized to a container in powder form. Filling or compression molding are commercialized. Powders used in the manufacture of common powdery tint cosmetics include sieving pigments such as talc, mica, sericite, kaolin, calcium carbonate, white pigments such as titanium dioxide and zinc oxide, colored pigments such as iron oxide, ultramarine blue, and blue and mica titanium. Pearlescent pigments such as and the like are used, and functional powders such as nylon, cellulose, and silica may be further added to give various effects such as imparting malleability and sebum control to the above components.

The powder raw materials have respective absorption and oil absorption characteristics, and powder powder color cosmetics are used as cosmetics to give a bright and smooth finish after basic makeup by solubilizing or emulsifying cosmetics using such properties of powders. .

U.S. Patent No. 56,3706 discloses a method of controlling sebum by using a powder having a high oil absorption such as silica as a sebum oil absorbent, but this method is simply caused by excessive oil absorption of the powder when a large amount of oil absorbing power is used. When the skin is pulled and used in a small amount, the sustainability is bad, and there is a problem that the skin becomes greasy by sebum. U.S. Pat. No. 4,532,443, U.S. Pat. No. 4,383,147 and the like disclose various sebum inhibitors such as benzoic acid-based, purine-based compounds and the like. However, even in the case of sebum inhibitors, a user with less sebum secretion has a problem that it is difficult to use in all prescriptions because it puts a variety of burden on the skin.

Therefore, there is a problem in the cosmetic manufacturer to prepare a cosmetic by adding a sebum oil absorbent and an inhibitor appropriately by subdividing the product for dry skin, oily skin, spring / summer and autumn / winter.

Conventionally, silica or organic germanium may be used in cosmetics for the purpose of solving such a problem. In general, porous silica and porous cellulose are spherical powders having a particle size of 1 to 20 μm, have a spherical smooth and smooth feeling, and have excellent absorption and oil absorption since they have 0.2 to 200 nm absorption holes inside the particles. . Therefore, such powders are used in cosmetics for the purpose of absorbing and removing phlegm and sebum while giving malleability to products. However, these powders have a dry feeling by absorption and oil absorption, and there is a problem that users of dry skin who do not have a lot of sebum secretion or winter users have a deterioration of feeling because of pulling the skin by oil absorption. Sebum inhibitors, such as organic germanium, which are not good for use, are used for dry skin users and fall / winter products that do not have a lot of sebum secretion, which can cause a decrease in feeling and worsen the condition of the skin. And there is a problem that applies only to products for oily skin.

The present invention is to solve the above problems, the particles are spherical spherical particles in the form of porous silica, porous cellulose and the like having a sebum inhibitory effect in the porous cellulose, etc. in advance, and then added to the cosmetic By blending, the oil is selectively absorbed and removed according to the secretion amount of sebum, and sebum secretion is adjusted to provide powdery color cosmetics with improved usability and makeup sustainability.

In order to achieve the above object, the present invention

a) impregnating the sebum inhibitor into the porous powder by adding and mixing the sebum inhibitor and the porous powder in a solvent; And

b) filtering and drying the porous powder impregnated with the sebum inhibitor of step a)

It provides a method for producing a selective sebum control composition comprising a, and provides a powdery color cosmetics containing the prepared sebum control composition prepared above.

Hereinafter, the present invention will be described in detail.

The present invention first impregnates the sebum inhibitor in the absorption hole of the porous powder so as to compensate for the disadvantage while using the advantages of the porous powder and sebum inhibitor.

To 50.0 to 99 parts by weight of a solvent, a sebum inhibitor and 1.0 to 50.0 parts by weight of porous powder are added, and the solution is stirred and mixed for about 2 to 4 hours with a stirrer and then uniformly mixed, and then left at room temperature for about 2 to 4 hours. At this time, the weight ratio of the sebum inhibitor: porous powder added above is 1: 1 to 1: 4.

After filtering the solution with filter paper (<1.0 mu m), the filtrate was heated to 50 to 100 DEG C, preferably 60 to 80 DEG C, and completely dried at this temperature to prepare powder. In this case, the prepared powder can be pulverized as necessary.

Since the powder prepared as described above includes a sebum inhibitor in the absorption hole in the particle, the oil absorption amount is smaller than that of the porous powder in which the absorption hole is empty. When the powder is applied to the product, when a proper amount of sebum is secreted, it does not absorb the sebum, and thus the pulling of the face is reduced. When an excessive amount of sebum is secreted, the sebum is absorbed into the absorption hole inside the powder as the sebum is absorbed into the powder. Sebum inhibitors flow out to remove the sebum and at the same time have the effect of inhibiting sebum.

Isopyrophyll alcohol, water, ethanol and the like can be used as the solvent, it is preferable to use ethanol. The amount of the solvent used is 50 to 99.

Silica, cellulose, and the like may be used as the porous powder, and it is preferable to use silica or cellulose. The porous powder may be in the form of a rectangle or a sphere, and is preferably spherical.

The particle size of the porous powder may vary depending on the type of porous powder, and the diameter is about 1 to 30 μm. In addition, the size of the absorption hole of the porous powder may vary depending on the type of porous powder, the diameter is 0.2 to 200 nm.

When the porous powder is spherical silica and / or cellulose, the porous powder preferably has a particle size of 5 to 15 μm and an absorption hole of 5 to 20 nm. If the particle size of the porous powder is more than 15 μm or less than 5 μm, application property and adhesion are reduced, which is not preferable. In addition, if the absorption hole of the porous powder exceeds 20 nm or less than 5 nm, the efficiency of containing the sebum inhibitor is lowered, so that the selective sebum control ability is lowered. The amount of the porous powder is 1 to 20 parts by weight, preferably 3 to 10 parts by weight. If the amount of the porous powder is more than 20 parts by weight, it is difficult to form a cosmetic product containing the porous powder, and if it is less than 1 part by weight, the effect of controlling sebum does not appear.

As the sebum inhibitor, acebiol (hydrolyzed serum protein), zinc oxide, organic germanium, and the like may be used, and it is preferable to use organic germanium.

When using organic germanium as the sebum inhibitor, organic germanium is represented by the following formula 1

[Formula 1]

Is an organic germanium (GeCH ₂ CH ₂ COOH) ₂ O ₃ : β-carboxyethy1 germanium sesquioxide.

The organic germanium is sold under the trade name 'Aramol' GEO by ICI Surfactant. The organic germanium has already been known to have a very good bioavailability such as dehydrogenation, antioxidant activity, and blue blood activity in addition to sebum suppression.

The use amount of the organic germanium is 0.1 to 10.0 parts by weight, preferably 1.0 to 6.0 parts by weight. When the usage amount of the organic germanium exceeds 10.0 parts by weight, the use of a sebum inhibitor may be excessive and the skin condition of the user may deteriorate. It is difficult to mold cosmetic products, and if it is less than 0.1 part by weight, there is no effect of controlling sebum.

The composition of the selective sebum control powder (powder) is preferably a component weight ratio of sebum inhibitor: porous powder is 1: 1 to 1: 4. When the component ratio exceeds 1: 4, the sebum inhibitor is not easily discharged, and thus, the inhibitory power against excess sebum is not good, and the oil absorption amount is similar to the oil absorption amount of the hollow porous powder, so that the skin pulling due to sebum oil absorption is not reduced. . If the component ratio is less than 1: 1, the sebum inhibiting powder is present in excess of the absorbing holes of the porous powder powder, so that the sebum inhibitor is not impregnated in the porous powder powder and remains. This results in a simple sebum inhibitory action rather than selective sebum control.

The present invention is a composition in which the above-mentioned porous powder and sebum inhibitor are combined at an appropriate ratio, and the sebum inhibitory effect test for such a sebum control composition is carried out, and a color cosmetic such as two-way cake containing the sebum control composition is further prepared. The present invention is completed by performing a skin usability evaluation on the prepared cosmetics in a conventional manner.

When preparing a cosmetic comprising the sebum control composition is the content of the sebum control composition is 1 to 25 parts by weight, preferably 6 to 12 parts. If the content of the sebum control composition is less than 1 part by weight, the sebum control effect does not appear, and if it exceeds 25 parts by weight, the moldability of the cosmetic is lowered.

The following presents preferred examples and comparative examples to aid in understanding the invention. However, the following examples are provided only to more easily understand the present invention, and the present invention is not limited to the following examples.

Preparation Example 1-4

After the porous powder and sebum inhibitor were added to ethanol, the mixture was stirred and dispersed for about 2 hours with a stirrer at 1200 rpm, and left at room temperature for about 2 hours. After standing, the solution was filtered through filter paper (<1.0 μm) and the filtrate was completely dried at 70 ° C. over about 48 hours to prepare a selective sebum control powder. The components of each of the sebum control powders are shown in Table 1 below.

TABLE 1

*: By weight

Experimental Example 1-4

Sebum inhibitory effect on the sebum control powder prepared in Preparation Example 1-4 was measured by the following method. Twelve male subjects with high sebum secretion were selected, and sebum tape was first attached to the forehead to remove already secreted sebum. The new sebum adsorption tape was attached to the same site for about 40 minutes, and then collected and used as a result of steady state sebum secretion. The sebum control powder sample prepared in Preparation Example 1-4 was applied to the forehead for a long time and a short time, and after attaching a new sebum adsorption tape and after about 40 minutes, it was collected and used as a result of sebum secretion according to the sample application. The resulting treatment was performed by measuring the amount of sebum adsorbed on the sebum adsorption tape by image analysis using the sebum adsorption area and the sebum non-adsorption area on the sebum adsorption tape, and converting them into units of time and area of the skin. (Sebum Excretion Rate, µg / cm 2 · min). The results are shown in Table 2 below, where the short-term effect was measured after application of the sample once, and the long-term effect was measured after applying the sample twice a day for 1 week.

TABLE 2

As shown in Table 2, the selective sebum control powder of the present invention showed an effect of reducing sebum secretion by about 15-20%, and the case of containing the sebum inhibitor in the porous silica rather than the sebum inhibitor in the porous cellulose The sebum inhibitory effect was shown to be better.

Example 1-4 and Comparative Example 1-2

After pulverizing component 1-3 twice with a grinder according to the composition of Table 3, the pulverized mixture was mixed with components 4-12 and preservative 15 in a Henschel mixer at 2000 rpm for about 5 minutes, and the oil portion was added to the mixture. 13-14 and flavor 16 were sprayed at 500 rpm. After spraying the oil portion and the fragrance, the mixture was further mixed at 2000 rpm for about 5 minutes, and then crushed twice with a grinder and solidified at a pressure of 20-25 kgf / cm 2 to prepare a two-way cake. The components of each of the two-way cakes are shown in Table 3 below.

TABLE 3

*: Unit weight

**: amount to sum to 100% by weight

***: powder prepared in the above preparation

Experimental Example 5-11: Usability Evaluation for Users of Dry Skin

The two-way cake composition prepared according to Example 1-4 and Comparative Example 1-2 was subjected to repeated makeup for 15 days in October for 20 women with dry skin in their 20s to 40s. The quality was evaluated by the criteria and the results are shown in Table 4 below.

TABLE 4

*:Evaluation standard

5: very good 4: excellent

3: It is normal 2: It is bad

1: very bad

As shown in Table 4, the two-way cake prepared in Examples 1-4 was significantly improved in the skin pulling phenomenon of the dry skin than the two-way cake prepared in Comparative Example 1-2. All were found to be relatively good with no significant difference.

Experimental Example 5-11: Usability Evaluation for Users of Oily Skin

The two-way cake composition prepared according to Example 1-4 and Comparative Example 1-2 was repeatedly subjected to makeup for 15 days in October for 20 women with oily skin in their 20s to 40s, and then evaluated as follows. The quality was evaluated by the standard and the results are shown in Table 5 below.

TABLE 5

*:Evaluation standard

5: very good 4: excellent

3: It is normal 2: It is bad

1: very bad

As shown in Table 5, the two-way cake prepared in Example 1-4 was found to have somewhat better skin bleeding phenomenon of the dry skin than the two-way cake prepared in Comparative Example 1-2. It was found that both and and the comparative examples were relatively good without any significant difference.

As shown in Tables 4 and 5, the selective sebum control powder is prepared by using a sebum inhibitor and a porous powder in preparation of powdery color cosmetics, and when added to the cosmetic, facial pulling or bleeding can be reduced according to the amount of sebum secretion. It is possible to produce a product with selective sebum control.

The selective sebum control composition prepared by the method of the present invention is a composition containing a porous powder and sebum inhibitor, and adjusts sebum according to the amount of sebum secretion without causing side effects when applying a cosmetic such as two-way cake containing the composition to the face In addition, it can also reduce face pulling and shine.

Claims (4)

a) i) 1 type in the group consisting of isopropyl alcohol, water, and ethanol        50 to 99 parts by weight of the solvent selected above;    ii) acebiol (hydrolyzed serum protein), zinc oxide, and       In the group consisting of organic germanium represented by the formula (1)       0.1 to 10 parts by weight of one or more sebum inhibitors selected; And   iii) at least one selected from the group consisting of silica and cellulose       1 to 20 parts by weight of porous powder       Mixing the impregnated sebum inhibitor into the porous powder; b) filtering and drying the product of step a) Method for producing a sebum inhibiting composition comprising a. [Formula 1] The method of claim 1, Method of producing a composition for inhibiting sebum containing the sebum inhibitor: the porous powder in a weight ratio of 1: 1 to 1: 4. The method of claim 1, The porous powder has a particle size of 1 to 30 ㎛, absorption hole is 0.2 to 200 ㎛ manufacturing method of the sebum inhibiting composition. Powder powder color cosmetics containing the sebum inhibiting composition prepared by the method of claim 1 in an amount of 1.0 to 25.0 parts by weight based on the total weight.