KR100451321B1 - Room temperature processing water-in-silicone emulsion make-up composition - Google Patents

Abstract

The present invention relates to a water-in-silicone makeup cosmetic composition which is a water of a room temperature emulsification process containing dimethicone copolyol and polyacrylamide. Emulsified makeup cosmetic composition according to the present invention is prepared by the room temperature process is easy to manufacture and has a high viscosity of the inner phase, low viscosity, excellent stability, water resistance and moisture retention, refreshing feeling and usability.

Description

Room temperature processing water-in-silicone emulsion make-up composition

The present invention is a room temperature emulsified water silicone (water-in) containing a large amount of water phase (inner phase) and not having a high viscosity in order to be easily manufactured by a room temperature process and have an excellent moisturizing effect. The present invention relates to an emulsified makeup cosmetic composition containing dimethicone copolyol and polyacrylamide to obtain an emulsified composition.

In particular, the present invention relates to a water-based silicone (hereinafter referred to as W / S) emulsified makeup cosmetic composition, which is easily manufactured by manufacturing at room temperature, has a high viscosity, and has a low viscosity, and thus has high applicability and stability and water resistance. And it is characterized by excellent moisture retention and usability.

In general, W / S emulsion make-up formulations have a disadvantage of relatively low refreshing and moisturizing properties due to a lower proportion of aqueous phase than the oil-in-water formulation, which is a silicone oil phase and an inner phase is an aqueous phase. In order to improve this, when a large amount of water is prescribed as an internal wound, the viscosity becomes very high and the feeling of use becomes stiff.

In addition, it contains a wax component in the oil phase to produce a product by heating the temperature to about 70 to 80 ℃ not only to dissolve it but also to increase the efficiency of the emulsification. In this case, heating and cooling takes time and energy costs. Therefore, it contains a large amount of internal phase (aqueous phase: 60 to 70% by weight), has a moderate viscosity (15,000 to 20,000 cps), excellent stability and usability, and does not contain wax components in oil, so that stable emulsification at room temperature is possible. It is becoming a technical problem to make this small W / S type oil cosmetic makeup cosmetic.

In recent years, attempts have been made using gels, but the use of gels has been limited due to the rapid rise in viscosity.

Generally, it is impossible to make W / S emulsifier with high viscosity because it contains a large amount of inner phase (water phase), and it has excellent moisture retention and refreshing feel. Forming.

In some cases, the viscosity of the salt (sodium chloride, magnesium sulfate, etc.) used as an emulsifying stabilizer may be increased by a certain amount or decreased below a certain amount to lower the viscosity, but in this case, the stability may be very poor. As an attempt to increase the moisturizing power and freshness by maximizing the content of the aqueous phase by using the formulation of the layer separation type rather than the emulsion type, in this case, the applicability to the container is inferior. In particular, the use of W / S gel formulations, which are in the limelight recently, is expected to increase the content of the aqueous phase, which is more than 60%, but it is expected to feel the same feeling as above. However, when the inner phase is placed in this way, the system is unstable because of homomixing. Even if emulsification is formed, a very high emulsification is formed, thereby decreasing the applicability of the container and at the same time, feeling of use.

It is an object of the present invention, as the conventional W / S emulsification system as mentioned above, it is difficult to satisfy the excellent water resistance, moisture retention, refreshing feeling and appropriate contents fluidity and cost reduction by low temperature process at the same time has water resistance itself At the same time it is to provide a silicone makeup cosmetic composition which is a room temperature emulsion type water applied dimethiconocopolyol and polyacrylamide having the ability to collect a large amount of water.

The dimethicone copolyol of the present invention has a side chain of ethylene oxide or propylene oxide, which is a hydrophilic group, in the dimethyl polysiloxane main branch, and the polyol portion of each branch is networked with each other to form a polymer, where the hydrophilic portion mainly accumulates moisture. It plays a role.

Polyacrylamide is a polymer of water-dispersible acrylic system, and has a feature of dropping the viscosity of W / S emulsifier containing colorant without any problem on stability.

The makeup cosmetic composition of the present invention contains 2.0 to 5.0% by weight of dimethicone copolyol and 0.5 to 3.0% by weight of polyacrylamide, which has good water resistance, moisture retention, and refreshing feeling, and has excellent fluidity, stability, and feeling of use. It was.

In addition, the room temperature process has been adopted to reduce costs and facilitate production.

The present invention is illustrated by the following examples. However, these examples should not be understood as limiting the present invention. In these examples the content of ingredients is weight percent.

(Example)

(Examples 1 to 4 and Comparative Examples 1 to 4)

Dispersed, emulsified makeup cosmetics were prepared by the ingredients and component ratios (wt%) shown in Table 1 below, and the following water resistance tests were conducted.

After 5g of the sample was dropped into 500ml of distilled water and mixed for 5 minutes with AGI MIXER 1500rpm, the contents kept in its shape. When the shape melted and disappeared, it was measured based on "ha".

Cooling test is as follows.

Thirty panels were selected and each sample was given to the following sample, and used once on the face, and after 7 points were judged on a scale, the average of the values was shown.

Moisturizing power test method is as follows.

After 10 minutes of application to the skin of each subject, the skin moisturizing power was measured using Corneometer CM820PC, a skin moisturizing power measuring device by capacitive measurement method after 90 minutes.

Stability test method is as follows.

According to the separation time after being put into a 50 ℃ thermostat, it was measured according to the criteria of “low” if it withstands less than 3 days, “medium” if it withstands more than 3 days and less than 15 days.

Zeta Potential is a value that is used as a measure of stability by measuring the zeta potential between the particles in the suspension and the particles. In general, the case where the absolute value of the value is 25 or more is considered as a stable system. Measured using 300 (Dispersion Technology, Inc.).

TABLE 1

division Comparative Example 1 Example 1 Example 2 Example 3 Example 4 Comparative Example 2 Comparative Example 3 Comparative Example 4 Polyacrylamide * 1 1.0 1.0 1.0 1.0 1.0 1.0 0.0 1.0 Pyromethicone 25.0 25.0 25.0 25.0 25.0 25.0 15.0 0.0 Cetyl Dimethicone Copolyol 0.1 0.1 0.1 0.1 0.1 0.1 2.5 0.0 Dimethicone Copolyol * 2 1.0 2.0 3.0 4.0 5.0 6.0 1.0 0.0 Dimethicone & Dimethicone / Vinyl Copolymer 0.0 0.0 0.0 0.0 0.0 0.0 10.0 0.0 Aluminum Magnesium Silicate 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 Xanthan Gum 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 Polysorbate-60 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8 Sorbitan sesquioleate 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 Liquid paraffin 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10.0 Dimethicone 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 Color qs qs qs qs qs qs qs qs Butylene glycol 5.0 5.0 5.0 5.0 5.0 5.0 5.0 7.0 Purified water to 100 to 100 to 100 to 100 to 100 to 100 to 100 to 100 Triethanolamine 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.9 Magnesium sulfate 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.0 antiseptic qs qs qs qs qs qs qs qs Water resistance Prize Prize Prize Prize Prize Prize Prize Ha Refreshing feeling 5.9 5.6 5.5 5.5 5.3 4.5 2.5 5.5 Moisturizing power (moisture increase amount (μΩ)) 24 25 29 28 28 26 5 18 Stability Ha Prize Prize Prize Prize Ha Prize Prize Zeta Potential -15 -36 -35 -37 -37 -10 -35 -31

* 1 (Creagel EZ 5, CIT), * 2 (BY 11-030, Dow Corning)

※ The formulation process of the Example was manufactured by any room temperature process.

-Comparative Example 3 in Table 1 is a conventional W / S emulsified makeup formulation is excellent in water resistance and stability, but has a disadvantage in cooling and moisture retention.

Comparative Example 4 is a conventional oil-in-water emulsion cosmetic formulations have excellent disadvantages of moisturizing power, refreshing feeling, stability but poor water resistance.

On the other hand, Examples 1 to 4 are excellent in general in terms of moisturizing power, refreshing feeling, stability, water resistance, and the like, and are included in the following claims.

Comparative Examples 1 and 2 are cases in which the amount of dimethicone copolyol is outside the scope of claims, in which case it is excellent in moisturizing power, coolness, and water resistance, but has a disadvantage in stability.

(Examples 5-8 and Comparative Examples 5-7)

The cosmetics were prepared by the ingredients and the component ratios (wt%) shown in Table 2 below, and the experiments were carried out as follows. In particular, the content limitation experiment of polyacrylamide was performed in parallel.

The viscosity measurement method is as follows.

The contents are placed in a 200 ml experiment container, placed in a 25 ° C. thermostat, and measured after 24 hours using the Brookfield VISCOMETER DV-I +.

The evaluation method of feeling is as follows.

Thirty panels were selected and each sample was given to the following sample, and used once on the face, and after 7 points were judged on a scale, the average of the values was shown.

The measuring method of stability and zeta potential is the same as the method of the said Table 1.

TABLE 2

division Comparative Example 5 Comparative Example 6 Example 5 Example 6 Example 7 Example 8 Comparative Example 7 Polyacrylamide * 1 0.0 0.1 0.5 0.1 2.0 3.0 4.0 Pyromethicone 25.0 25.0 25.0 25.0 25.0 25.0 25.0 Cetyl Dimethicone Copolyol 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Dimethicone Copolyol * 2 5.0 5.0 1.0 1.0 1.0 1.0 1.0 Color 5.0 5.0 5.0 5.0 5.0 5.0 5.0 Butylene glycol 5.0 5.0 5.0 5.0 5.0 5.0 5.0 Purified water to 100 to 100 to 100 to 100 to 100 to 100 to 100 Triethanolamine 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Magnesium sulfate 0.5 0.5 0.5 0.5 0.5 0.5 0.5 antiseptic qs qs qs qs qs qs qs Viscosity (cps) 60.000 40.000 15.000 16.000 18.000 20.000 40.000 Feeling 2.2 3.4 5.6 5.5 5.7 5.6 3.1 Stability Ha medium Prize Prize Prize Prize Prize Zeta Potential -11 -19 -37 -39 -38 -40 -35

* 1 (Creagel EZ 5, CIT), * 2 (BY 11-030, Dow Corning)

※ The formulation process of the Example was manufactured by any room temperature process.

In Table 2, Comparative Examples 5 and 6 are inferior in quality in terms of viscosity, usability, and stability when polyacrylamide is not added or a small amount is added below the claims.

Comparative Example 7 is a case where polyacrylamide is added over the range of claims, in which case the stability is good but the quality is poor in terms of viscosity and usability.

-In case of Examples 5 to 8, the viscosity is a viscosity (15,000 to 20,000 cps) with easy container selectivity, and exhibits excellent usability and stability.

Room temperature emulsifying type W / S makeup cosmetic composition according to the present invention contains 2.0 to 5.0% by weight of dimethicone copolyol and 0.5 to 3.0% by weight of polyacrylamide, which is easy to manufacture at room temperature, and has excellent moisturizing and cooling effect. It contains a large amount of water phase (inner phase), but does not have high viscosity, so that the container has good applicability and provides excellent usability and water resistance.

Claims (1)

Silicone (Water-In-Silicone) makeup cosmetic composition containing room temperature emulsified water containing 2.0 to 5.0% by weight of dimethicone copolyol and 0.5 to 3.0% by weight of polyacrylamide.