KR100740598B1 - Oil-in-water type emulsion cosmetic composition - Google Patents

Abstract

An oil-in-water type emulsion cosmetic composition is provided to improve use feeling and hardness of the cosmetic composition by improving skin affinity and water evaporation-inhibiting ability of the composition and serving butter-like properties to the cosmetic composition. The oil-in-water type emulsion cosmetic composition comprises (1) 1-10 wt.% of dimethicone/vinyldimethicone crosspolymer, (2) 2-10 wt.% of glycerylester-based emulsifier, (3) 1-10 wt.% of polyvalent alcohol selected from lauryl alcohol, cetyl alcohol, stearyl alcohol, cetearyl alcohol, oleyl alcohol, behenyl alcohol, linoleyl alcohol, undecylenyl alcohol, palmitoleyl alcohol, linolenyl alcohol, arachidonyl alcohol, erucyl alcohol and a mixture thereof; (4) 1-10 wt.% of higher fatty acid selected from stearic acid, lauric acid, myristic acid, behenic acid, isostearic acid, oleic acid and a mixture thereof; (5) 10-40 wt.% of oil selected from cyclodimethicone, dimethicone, diethylhexyl carbonate, hydrogenated polydecine, myristic acid isopropyl, liquid paraffin, vegetable squalane, macadamia nut oil, jojoba oil, avocado oil, olive oil, camellia oil and a mixture thereof; and (6) a remaining amount of water containing glycerin or water-soluble active components as plant extracts.

Description

Oil-in-water emulsion cosmetic composition

1 is a view showing the properties of the oil-in-water emulsion cosmetic composition according to the present invention.

Figure 2 is a view showing the water evaporation inhibiting power of the oil-in-water emulsion cosmetic composition according to the present invention.

Figure 3 is a view showing that when the cream prepared by the oil-in-water emulsion cosmetic composition according to the present invention is a butter-like property is formed.

The present invention relates to an oil-in-water type emulsion cosmetic composition, and more particularly, to an oil-in-water emulsion cosmetic composition using a dimethicone / vinyl dimethicone crosspolymer and a glyceryl ester emulsifier.

In the field of cosmetics, moisturizing the skin from the outside and moisturizing the skin to the outside is called moisturizing action, moisturizing action is the most basic and important function of cosmetics.

In general, the emulsion cosmetic composition is used for the purpose of supplying moisture and oil, in particular the moisturizing emulsion cosmetic composition refers to a mixture of oil-soluble components and water-soluble components in the form of a colloid. The moisturizing emulsion cosmetic composition is an oil-in-water type (O / W) using a hydrophilic emulsifier according to the emulsification method and a water-in-oil type (W / O) using a lipophilic emulsifier It can be divided into two.

The oil-in-water type has a water phase and an oil phase in the form of a colloid. The oil-in-water type has been widely used in general cosmetics because of its light and matte feeling, ease of manufacture, skin affinity, and dispersion stability. However, since oil-in-water cosmetics are hydrophilic emulsions do not form a hard hardness, such as butter, there is a disadvantage that can not suppress the water evaporation.

On the other hand, the water-in-oil type can impart various functions because the trauma is oil, and exhibits excellent moisturizing effect by preventing water evaporation of the skin as well as water supply, and improves the durability of makeup by increasing water resistance. In addition, the water-in-oil type may have a hard hardness, such as butter. However, the water-in-oil type is heavy and sticky by blending wax or the like in the oil phase component of the outer phase to ensure stability, and the emulsion has a low storage stability and is limited in use. Therefore, it is mainly used for color cosmetics. Some of these water-in-oil formulations, ie emulsion facts, lipsticks, foundations, etc., have shear faces when cut from top to bottom. However, even in water-in-oil type, it generally does not have a shear plane if the water phase exceeds 30% of the total.

Recently, multiple emulsification methods such as oil in water in oil (O / W / O) and water in oil in water (W / O / W) have also been used.

Consumers have both skin affinity that is characteristic of oil-in-water cosmetic compositions, moisturizing properties and buttery characteristics that are characteristic of water-in-oil cosmetic compositions, and the need for cosmetics that are free of unpleasant feelings, stuffiness, and shine when applied to the skin. I'm asking.

Thus, the inventors of the present invention while studying the oil-in-water emulsion cosmetic composition that has excellent skin affinity and moisturizing properties and may have a buttery property, prepared by using a dimethicone / vinyldimethicone crosspolymer and a glyceryl ester emulsifier When the oil-in-water emulsion cosmetic composition was applied to the skin, it was confirmed that it has excellent skin affinity and moisturizing properties and has a buttery property, and completed the present invention.

An object of the present invention is to provide an oil-in-water emulsion cosmetic composition using a dimethicone / vinyldimethicone crosspolymer and a glyceryl ester emulsifier having excellent skin affinity and moisturizing properties and having a buttery property.

The present invention

1) dimethicone / vinyl dimethicone crosspolymer,

2) glyceryl ester emulsifiers,

3) polyhydric alcohol,

4) higher fatty acids,

5) oil, and

6) It provides an oil-in-water emulsion cosmetic composition comprising water containing a water-soluble active ingredient.

In addition, the present invention is a dimethicone / vinyl dimethicone crosspolymer, and other components dissolved in oil as an oil phase component, a component dissolved in purified water as an aqueous phase component, an aqueous phase component to an oil phase component or an oil phase component to an aqueous phase component. After slowly adding the mixture is uniformly mixed with a mixer after the emulsification process, it provides a method for producing an oil-in-water emulsion cosmetic composition characterized in that it is prepared through a defoaming process.

Hereinafter, the present invention will be described in detail.

Oil-in-water emulsion cosmetic composition of the present invention

1) Dimethicone / Vinyl Dimethicone Crosspolymer 1 ~ 10 wt%,

2) glyceryl ester emulsifier 2 ~ 10% by weight,

3) 1 to 10% by weight polyhydric alcohol,

4) 1-10% by weight of higher fatty acids,

5) 10-40% by weight of oil, and

6) It is characterized by containing a residual amount of water containing a water-soluble active ingredient.

In the oil-in-water emulsion cosmetic composition according to the present invention will be described in detail for each component as follows.

In the oil-in-water emulsion cosmetic composition according to the present invention, 1) the dimethicone / vinyl dimethicone crosspolymer has a great absorption, so that the wettability in oil or water is good. Therefore, it forms a network with the glyceryl ester emulsifier in the emulsion to serve as a support, to increase the hardness and to give a crystallization. The content of the dimethicone / vinyldimethicone crosspolymer is preferably 1 to 10% by weight based on the total weight of the oil-in-water emulsion cosmetic composition. If the content of dimethicone / vinyldimethicone crosspolymer is less than 1% by weight, the hardness is low, so it is difficult to form butter. If it is more than 10% by weight, butter is formed but the spreadability of cosmetics is poor. Or when applied to the skin may feel stuffy

In the oil-in-water emulsion cosmetic composition according to the present invention, 2) glyceryl ester emulsifier to form a liquid crystal by the ester bond of fatty acid and polyglycerol, it contains water in the liquid crystal. Therefore, in the emulsion together with the dimethicone / vinyl dimethicone crosspolymer to form a network to act as a support, to increase the hardness and impart a form. Such glyceryl ester emulsifiers include polyglyceryl-3 methylglucose distearate, polyglycerol-10 distearate, cetearyl olivate / sorbitan oleate and the like. The content of the glyceryl ester emulsifier is preferably included 2 to 10% by weight based on the total weight of the oil-in-water emulsion cosmetic composition. If the content of glyceryl ester emulsifier is less than 2% by weight, the hardness is low, so it is difficult to form butter. If it exceeds 10% by weight, the property may be changed to become a lipophilic emulsion. May cause skin irritation.

In the oil-in-water emulsion cosmetic composition according to the present invention, 3) the polyhydric alcohol plays a role in increasing the stability of the emulsion in the emulsion and raising the hardness. Such polyhydric alcohols include lauryl alcohol, cetyl alcohol, stearyl alcohol, cetearyl alcohol, oleyl alcohol, behenyl alcohol, linoleyl alcohol, undecylenyl alcohol, palmitole alcohol, linolelenyl alcohol, arachidyl alcohol , Erucyl alcohol or mixtures thereof, and the like, and cetyl alcohol is more preferable in the present invention. The content of the polyhydric alcohol is preferably 1 to 10% by weight based on the total weight of the oil-in-water emulsion cosmetic composition. If the content of the polyhydric alcohol is less than 1% by weight, the emulsion may not have a hardness or may tend to break down easily even if it has a hardness. If the content of the polyhydric alcohol exceeds 10% by weight, the spreadability or stiffness of the skin may be reduced. May cause skin irritation.

In the oil-in-water emulsion cosmetic composition according to the present invention, 4) higher fatty acids play a role in increasing the stability of the emulsion in the emulsion and raising the hardness. Such higher fatty acids include stearic acid, lauric acid, myristic acid, behenic acid, isostearic acid and oleic acid, and stearic acid is most preferred in the present invention. The content of the higher fatty acid is preferably contained 1 to 10% by weight relative to the total weight of the oil-in-water emulsion cosmetic composition. If the content of higher fatty acids is less than 1% by weight, the emulsion may not have a hardness or may tend to break down easily even if it has a hardness. If the content is higher than 10% by weight, it may be less spreadable or stiff as a cosmetic. May cause skin irritation.

In the oil- in-water emulsion cosmetic composition according to the invention, 5) the oil serves as an oil- soluble solvent, cyclodimethicone; Dimethicone; Ester oils such as diethylhexylcarbonate, hydrogenated polydecine, myri stearic acid isopropyl, and the like; Mineral oils such as liquid paraffin; Vegetable squalane purified from jojoba oil and olive oil; And vegetable oils such as macadamia nut oil, jojoba oil, avocado oil, olive oil, and camellia oil. The amount of the oil is preferably 10 to 40% by weight based on the total weight of the oil-in-water emulsion cosmetic composition. If the oil content is less than 10% by weight, the emulsion may not have hardness, and if it exceeds 40% by weight, the properties may change and become a lipophilic emulsion.

In the oil-in-water emulsion cosmetic composition according to the present invention, 6) as a water-soluble active ingredient is a generic name glycerin or plant extract used as a moisturizing agent.

Oil-in-water emulsion cosmetic composition according to the present invention as a component that is usually formulated in cosmetics, in addition to the essential components, may further include components such as viscosity regulators, pH regulators, pigments, preservatives, fragrances.

The preparation method of the oil-in-water emulsion cosmetic composition according to the present invention is as follows.

The dimethicone / vinyl dimethicone crosspolymer and a component dissolved in oil are used as an oil phase component, and the component dissolved in purified water is used as an aqueous phase component, and each phase is heated and dissolved to 80 ° C. While the aqueous phase component to the oil phase component or the oil phase component to the aqueous phase component is slowly added and uniformly mixed with a mixer and emulsified at 70 ~ 80 ℃ for a certain time. After neutralizing the emulsion with a pH adjuster, and cooled to 40 ~ 50 ℃, homogenized with a flavor or beauty plant extracts, and through the defoaming process to prepare an oil-in-water emulsion cosmetic composition.

Oil-in-water emulsion cosmetic composition according to the present invention is a hydrophilic emulsion, excellent skin affinity and water evaporation inhibition, and has a butter-like property. Therefore, the oil-in-water emulsion cosmetic composition according to the present invention can be distinguished from the general oil-in-water emulsion cosmetic composition in terms of use or form.

Formulation of the oil-in-water emulsion cosmetic composition according to the present invention includes skin protective cosmetics such as nutrition cream, massage cream, hand cream, eye cream, body cream, tanning cream, cleansing cream; Makeup cosmetics such as makeup base cream, foundation cream and control cream; Hair protection cosmetics such as hair cream and the like.

Hereinafter, preferred examples are provided to aid in understanding the present invention. However, the following examples are merely provided to more easily understand the present invention, and the contents of the present invention are not limited thereto.

Example  One  : Underwater type according to the present invention emulsion Cosmetics  Preparation of the composition (cream)

Dimethicone / vinyldimethicone crosspolymer, glyceryl ester emulsifiers, polyhydric alcohols, higher fatty acids, and oils were used as the oil phase, and each phase was heated and dissolved to 80 ° C. with glycerine and purified water as the water phase. The oil phase was uniformly mixed with a mixer while slowly adding the oil phase to the oil phase, and emulsified at 80 ° C. for 10 minutes. The emulsion was neutralized with a pH adjuster at 70 ° C. or lower, and then cooled to 45 ° C., followed by homogenization with flavor or beauty plant extracts.

The content of each component is shown in Table 1.

Example  2 ~ 4  :

According to the components and their contents described in Table 1 below, an emulsion cosmetic composition was prepared in the same manner as in Example 1.

(Unit: weight%) ingredient Example One 2 3 4 Dimethicone / Vinyl Dimethicone Crosspolymer 3 3 3 3 Polyglyceryl-3 Methylglucose Distearate 5 - - - Polyglyceryl-10 Distearate - 5 - - Cetearyl Olate / Sorbitan Olate - - 5 5 Ester oil 10 10 10 - Macadamia Nut Oil - - - 4 Squalane - - - 3 Mineral oil - - - 3 Cyclomethicone 3 3 3 One Dimethicone 0.5 0.5 0.5 0.5 Stearic acid One One One One Cetyl alcohol One One One One Viscosity modifier 0.4 0.4 0.4 - glycerin - - - 4 pH regulator Quantity Quantity Quantity Quantity antiseptic a very small amount a very small amount a very small amount a very small amount incense a very small amount a very small amount a very small amount a very small amount Purified water Balance (to 100) Balance (to 100) Balance (to 100) Balance (to 100)

Comparative example  One  : Normal Water-in-oil type (water in oil) cream

ingredient Content (% by weight) Polysorbate 60 2 Seteareth 12 3 Glyceryl Stearate / Pig-100stearate 1.5 Macadamia Nut Oil 4 Squalane 3 Mineral oil 3 Stearic acid One Cetyl alcohol One glycerin 4 pH regulator Quantity antiseptic a very small amount incense a very small amount Purified water Balance (to 100)

Comparative example  2  : General oil in water cream

ingredient Content (% by weight) Cetyl Dimethicone Copolyol 3 Cyclomethicone 3 Dimethicone 0.5 Macadamia Nut Oil 4 Squalane 3 Mineral oil 3 Stearic acid One Cetyl alcohol One glycerin 4 pH regulator Quantity antiseptic a very small amount incense a very small amount Purified water Balance (to 100)

Comparative example  3  : Vegetable Butter

100% Shea Butter

Experimental Example  One  : Water evaporation suppression test

In order to measure the water evaporation inhibiting power of the oil-in-water emulsion cosmetic composition according to the present invention, it was carried out by the following method.

Five men and women aged 25 to 35 years were measured for the moisture content remaining on the skin for 8 hours once every 2 hours after applying the cream prepared in Example 4, and Comparative Examples 1 to 3 on the skin. At this time, the measurement temperature was 25 ℃, the relative humidity was set to 25%, and the measuring device used a moisture evaporation measuring device (TEWAMETER TM 210). The moisture measurement value immediately after skin application was set to 100.

The measurement results are shown in FIG. 2 and Table 2.

                                                                  (unit : %) division Early 2 hours later 4 hours later 6 hours later 8 hours later Example 4 100 96 95 93 92 Comparative Example 1 100 95 92 85 80 Comparative Example 2 100 95 90 90 88 Comparative Example 3 100 96 95 94 92

As shown in Figure 2 and Table 2, the oil-in-water emulsion composition (Example 4) according to the present invention showed the same level of water evaporation inhibiting power as the vegetable butter (Comparative Example 3). In addition, the oil-in-water emulsion composition according to the present invention (Example 4) is more excellent in inhibiting water evaporation over time than the general oil-in-water emulsion composition (Comparative Example 1) and the general oil-in-water emulsion composition (Comparative Example 2) It can be seen that the moisture content remaining on the skin is higher.

Experimental Example  2  : Hardness measurement

In order to measure the hardness of the oil-in-water emulsion cosmetic composition according to the present invention, it was carried out in the following manner.

The creams prepared in Examples 4 and Comparative Examples 1 and 2 were rheometers at a temperature of 25 ° C. (RHEO METER, manufacturer: FUDOH, Model RT-3002D, ADAPTOR: No. 3 (10Φ), S. ADJ .: 10 , T. SPEED: 30 cm / min) was used to measure the hardness. Three measurements were taken.

The measurement results are shown in FIG. 3 and Table 3.

division Hardness (g) Example 4 48 ± 5 Comparative Example 1 25 ± 3 Comparative Example 2 23 ± 3

As shown in Figure 3 and Table 3, the oil-in-water emulsion composition (Example 4) according to the present invention showed the hardness of the appearance, such as butter. On the other hand, in Comparative Example 1 and Comparative Example 2 it can be seen that the hardness is about 2 times weaker than the oil-in-water emulsion composition according to the present invention.

Oil-in-water emulsion cosmetic composition according to the present invention is a hydrophilic emulsion, excellent skin affinity and water evaporation inhibition, and has a butter-like property. Therefore, the oil-in-water emulsion cosmetic composition according to the present invention has an effect that can be differentiated from the general oil-in-water emulsion cosmetic composition and feeling and form.

Claims (8)

1) Dimethicone / Vinyl Dimethicone Crosspolymer 1 ~ 10 wt%, 2) glyceryl ester emulsifier 2 ~ 10% by weight, 3) lauryl alcohol, cetyl alcohol, stearyl alcohol, cetearyl alcohol, oleyl alcohol, behenyl alcohol, linoleyl alcohol, undecylenyl alcohol, palmitoleyl alcohol, linolenyl alcohol, arachidyl alcohol, e 1-10% by weight of a polyhydric alcohol selected from the group consisting of lucyl alcohol and mixtures thereof, 4) 1-10% by weight of higher fatty acids selected from the group consisting of stearic acid, lauric acid, myristic acid, behenic acid, isostearic acid, oleic acid and mixtures thereof, 5) Cyclodimethicone, Dimethicone, Diethylhexylcarbonate, Hydrogenated Polydecine, Mysteria isopropyl, Liquid Paraffin, Vegetable Squalane, Macadamia Nut Oil, Jojoba Oil, Avocado Oil, Olive Oil, Camellia Oil and Their 10 to 40% by weight of an oil selected from the group consisting of, and 6) Oil-in-water emulsion cosmetic composition comprising a residual amount of water containing a water-soluble active ingredient that is glycerin or plant extracts. delete The method of claim 1, wherein the glyceryl ester emulsifier is selected from the group consisting of polyglyceryl-3 methylglucose distearate, polyglycerin-10 distearate and cetearyl oleate / sorbitan oleate Oil-in-water emulsion cosmetic composition. delete delete delete The oil-in-water emulsion cosmetic composition of claim 1 is formulated as a nourishing cream, massage cream, hand cream, eye cream, body cream, tanning cream, cleansing cream, makeup base cream, foundation cream, control cream or hair cream Oil-in-water emulsion cosmetic composition, characterized in that. 1) dimethicone / vinyl dimethicone crosspolymer, and 2) Cyclodimethicone, Dimethicone, Diethylhexylcarbonate, Hydrogenated Polydesin, Isopropyl Isopropyl, Liquid Paraffin, Vegetable Squalane, Macadamia Nut Oil, Jojoba Oil, Avocado Oil, Olive Oil, Camellia Oil and Their Oils selected from the group consisting of The component dissolved in the oil phase component, As the component dissolved in purified water as an aqueous phase component, After slowly adding the water phase component to the oil phase component or the oil phase component to the water phase component, uniformly mixing with a mixer and emulsifying at 70-80 ° C., and then neutralizing the emulsion with a pH adjuster and then 40-50 The method for producing an oil-in-water emulsion cosmetic composition according to claim 1, which is cooled to 0 ° C, homogenized by adding flavor, cosmetic ingredients or plant extracts, and then subjected to a defoaming process.

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