KR20080018645A - Long lasting oil-in-water type emulsified makeup cosmetic compositions - Google Patents

Abstract

An oil-in-water type emulsified makeup cosmetic composition is provided to improve lasting properties against external sweat and water by forming a thin film on the skin surface and enhancing adhesion while the light and soft feeling of use as properties of oil-in-water cosmetic composition is maintained. An oil-in-water type emulsified makeup cosmetic composition comprises (a) 0.01-5.00 wt.% of a first coating composition containing gelation components as an oil-in-water type emulsion formulation, and (b) 0.01-5.00 wt.% of a second coating composition containing cationic components as a mist formulation, wherein the gelation component is selected from gellan gum, xanthan gum, cellulose gum, agar, alginic acid and alginate; the cationic component is selected from sodium ion, potassium ion and magnesium ion; the first coating composition coats a face and the second coating composition is sprayed to the face; and the composition is formulated as makeup base, foundation, concealer or skin cover.

Description

Long Lasting Oil-In-Water Type Emulsified Makeup Cosmetic Compositions}

The present invention relates to an oil-in-water emulsified makeup cosmetic composition excellent in durability, and more particularly, to a second application of a mist formulation containing a cationic component and a composition for primary application of an oil-in-water emulsion formulation containing a gelatinization component. The present invention relates to an oil-in-water emulsified makeup cosmetic composition having a light and soft feeling and excellent makeup sustainability by allowing the composition to be applied to the skin in turn.

In general, oil-based makeup cosmetics are divided into two types, oil-in-water emulsion and oil-in-water emulsion. In the case of water-in-oil emulsified makeup cosmetics, there is an advantage of excellent durability and high coverage, but there is a disadvantage in that the feeling of use is heavy. On the other hand, oil-in-water oil-based makeup cosmetics have a light and fresh feeling, but have a low sustainability and low coverage. In particular, since the continuous phase is an aqueous phase and the dispersed phase is an oil, the adhesion is poor when applied to the skin, and thus the durability of water or sweat is poor, and the makeup is stained or aggregated.

Accordingly, various attempts have been made to emphasize the usability while improving the sustainability, which is a disadvantage of the oil-in-water emulsion formulation. Representative attempts to date are as follows.

Various methods have been attempted to vary the type of pigments and coating films, to make the type of dispersion medium of the pigment into water dispersion or oil phase dispersion, to improve the persistence through increasing the content of trimethylsiloxysilicate, or to use a highly volatile oil. These attempts have focused on increasing the sustainability of the formulation through even dispersion and rapid setting of the pigment. However, the fundamental problem of low sustainability of oil-in-water emulsion formulations is that the formulation can be washed away because of its high affinity for trauma (water) and the external environment (sweat, moisture, etc.). Therefore, the above-mentioned various prior arts are limited in increasing the persistence.

Therefore, it is necessary to develop a composition that is excellent in sustainability from external sweat or water while maintaining a light and soft feeling of oil-in-water oil-based makeup cosmetics through a fundamental approach for enhancing sustainability.

Therefore, the present inventors have studied diligently to solve the above problems of oil-in-water emulsion makeup cosmetics, the oil-in-water emulsion formulation containing a gelatinization component as a primary coating composition and the mist formulation containing a cationic component 2 The present invention was completed by discovering that it can form a thin film on the skin surface and improve the adhesion by applying the composition for tea application in turn to improve the persistence of the makeup cosmetic.

Accordingly, it is an object of the present invention to provide an oil-in-water emulsion type makeup cosmetic composition excellent in durability.

In order to achieve the above object, the oil-in-water emulsified makeup cosmetic composition according to the present invention comprises a composition for primary application containing a gelling component as an oil-in-water emulsion formulation and a composition for secondary application containing a cationic component as a mist formulation. It is characterized by including.

In addition, the gelling component is contained in 0.01 to 5.00% by weight based on the total weight of the composition for primary coating, the cationic component is characterized in that it contains 0.01 to 5.00% by weight relative to the total weight of the composition for secondary coating.

Hereinafter, the present invention will be described in more detail.

The gelling component contained in the composition for primary application of the present invention is selected from the group consisting of gellan gum, xanthan gum, cellulose gum, agar, alginic acid and algin salt.

The gelling component is preferably contained in 0.01 to 5.00% by weight based on the total weight of the composition for primary application. The gelling component is a polymer that must be maintained at a concentration above a certain amount to form a network in the formulation. Of course, this concentration may have a different value depending on the type of gelling component, but in general, it is advantageous for gelation to maintain 0.01% by weight or more. Below this concentration, it is too low to form a network and the strength is very weak even if the network is formed. In addition, when added in excess of 5.00% by weight, due to the viscosity of the polymer itself before gelation, it is difficult to formulate and the gelation strength is too strong when the cationic component is added, which is not suitable as a cosmetic.

The cationic component contained in the composition for secondary application of the present invention is selected from the group consisting of sodium ions, potassium ions and magnesium ions and is contained in the form of salts such as sodium chloride, potassium chloride and magnesium sulfate.

It is preferable to contain the said cationic component in 0.01 to 5.00 weight% with respect to the total weight of the composition for secondary coating. The concentration of the cationic component is the most important parameter that determines the strength of the gelling. If the concentration is too low, the gelation does not occur at all, whereas if the concentration is too high, it is very hard to control the strength of the gelling. In particular, divalent cations such as magnesium cations have better gelation capabilities than monovalent cations such as sodium cations, and trivalent cations such as aluminum cations are far superior to monovalent and divalent cations. Therefore, although it is necessary to select the concentration suitable for each according to the kind of ion, it is generally preferable to contain 0.01-5.00 weight% with respect to all the ions. The gel formation is hardly observed at less than 0.01% by weight, so that formation of the film cannot be observed, and too hard gelation occurs at more than 5.00%, which is not suitable for the cosmetic composition.

The oil-in-water emulsified makeup cosmetic composition of the present invention is composed of a composition for primary application of an oil-in-water emulsion formulation containing a gelling component and a composition for secondary application of a mist formulation containing a cationic component, which is in turn applied to the skin.

The gelling component merely acts as a thickener in the absence of a cationic component, but when cations are added, the gelling component forms cross-links between polymer chains, resulting in gelation. Since the film formed by this gelation phenomenon is transparent, color expression of the makeup cosmetics is easy without affecting the color of the face or the cosmetic. In addition, when the cationic component is added directly to the emulsion formulation and applied, the make-up of the oil-in-water emulsion formulation containing the gelling component can not be used as a cosmetic since the gelation proceeds with the gelling component already in the container before it is applied to the face. The cosmetic is first applied to the face, and then the cosmetic of the mist formulation containing the cationic component is lightly sprayed on the site. The gelling film formed at this time starts to contact with the cationic component from the outside where the mist comes into contact to form a thin and smooth film from the outside. This gelation film enhances the persistence, which is one of the problems with the conventional oil-in-water makeup cosmetics, and prevents the makeup cosmetics from being washed away from water, sweat and dust.

Oil-in-water emulsified makeup cosmetic composition of the present invention comprises an aqueous phase component, pigment component, oil phase component, gelatinization component and cationic component. The aqueous phase component, pigment component and oil phase component are components generally used in conventional makeup cosmetics, and the aqueous phase component is composed of purified water, a moisturizer, a thickener and a pigment dispersant, and the pigment component is titanium dioxide, mica, talc, silica and Iron oxide and the like, the oil phase component may contain oil, silicone oil and surfactant.

Each manufacturing process of the oil-in-water emulsion formulation for primary application and the mist formulation for secondary application of the present invention is as follows. In the case of oil-in-water emulsion formulations, the oily components are first warmed to 65-75 ° C and the pigment components are dispersed therein. And the water phase component including the gelling component is heated to 65 ~ 75 ℃ and emulsified with the oil phase component. When the emulsification is completed, it can be cooled to room temperature to make up the makeup cosmetic of the oil-in-water emulsion formulation for primary application. In addition, in the case of the mist formulation, a salt containing a cationic component in purified water at room temperature, and then mixed evenly until it becomes transparent, it is possible to make a cosmetic composition of the mist formulation for a second concentration of a certain concentration.

Makeup cosmetic composition according to the present invention is not particularly limited in the formulation, it may be formulated in the form of cosmetics, such as makeup base, foundation, concealer, skin cover.

In addition, in each formulation, other ingredients in addition to the above-mentioned essential ingredients may be appropriately selected and blended by those skilled in the art without difficulty depending on the kind or purpose of use of other cosmetics.

Hereinafter, although an Example and a test example are given and demonstrated more concretely of this invention, this invention is not limited only to these examples.

[Examples 1-4 and Comparative Examples 1-2]

The oil-in-water emulsion (foundation) (formula a) and mist (formula b) of Examples 1 to 4 and Comparative Examples 1 and 2 were prepared using the compositions of Tables 1 and 2 below. Examples 1a to 4a are preparations for foundation formulations containing a gelling component according to the present invention, and Comparative Examples 1a to 2a are preparations for general foundation formulations containing no gelling component. In addition, Examples 1b to 4b are mist formulations containing a cationic component in accordance with the present invention, and Comparative Examples 1b to 2b were prepared in a mist formulation containing only a small amount of sodium chloride component containing water or not falling within the scope of the present invention. will be.

Composition (% by weight) Example Comparative example 1a 2a 3a 4 a 1a 2a (1) water To 100 To 100 To 100 To 100 To 100 To 100 (2) butylene glycol 5.00 5.00 5.00 5.00 5.00 5.00 (3) disodium id 0.02 0.02 0.02 0.02 0.02 0.02 (4) arachidyl alcohol 0.30 0.30 0.30 0.30 0.30 0.30 (5) gellan gum 0.50 1.00 0.00 0.00 0.00 0.00 (6) alginate 0.00 0.00 2.00 0.00 0.00 0.00 (7) cellulose gum 0.00 0.00 0.00 1.00 0.00 0.00 (8) behenyl alcohol 0.30 0.30 0.30 0.30 0.30 0.30 (9) arachidyl glucoside 0.50 0.50 0.50 0.50 0.50 0.50 (10) stearic acid 0.70 0.70 0.70 0.70 0.70 0.70 (11) polymethyl methacrylate 3.50 3.50 3.50 3.50 3.50 3.50 (12) silica 0.50 0.50 0.50 0.50 0.50 0.50 (13) titanium oxide 8.00 8.00 8.00 8.00 8.00 8.00 (14) methylparaben 0.50 0.50 0.50 0.50 0.50 0.50

<Production method>

1) First, components (1) to (7) were placed in a beaker or flask and dissolved at 60 ° C.

2) (8)-(10) were mixed together at 60 ° C and dissolved sufficiently.

3) (11) to (14) was added to 2) above, and the mixture was sufficiently mixed at 6000 rpm.

4) Add 1) to 3) and mix well at 6000rpm.

5) Cooled to 30 ° C.

Composition (% by weight) Example Comparative example 1b 2b 3b 4b 1b 2b (1) water To 100 To 100 To 100 To 100 To 100 To 100 (2) sodium chloride 0.10 0.00 0.50 0.00 0.00 0.005 (3) magnesium sulfate 0.00 0.10 0.00 0.20 0.00 0.00

<Production method>

1) (2)-(3) were added to (1) and mixed sufficiently.

Test Example 1 Effect Verification Test for Improving Sustainability

Forty females aged 20 to 40 years were tested using the oil-in-water emulsion (foundation) (a formulation) and the mist (b formulation) prepared in Examples 1 to 4 and Comparative Examples 1 and 2, and the arm of the test subject was divided into four parts. After dividing into the same area (coated with 0.1g of foundation and then sprayed with mist twice after 1 minute), and after 35 minutes of saline solution flowed for 30 minutes, the color change before and after the foundation was observed.

The evaluation of the color change was determined by taking the color change as an image and then obtaining the "L" value representing the contrast. When the foundation is washed off a lot, the L value increases, and the comparison between test substances is expressed as ΔL value (L value after washing-L value before washing). The larger the ΔL value, the lower the persistence, and the ΔL values according to the experimental results are summarized in Table 3 below.

Example Comparative example 1 (1a + 1b) 2 (2a + 2b) 3 (3a + 3b) 4 (4a + 4b) 1 (1a + 1b) 2 (2a + 2b) ΔL 0.54 0.21 1.34 2.10 5.21 4.50

As can be seen from the above Table 1, it can be seen that the cosmetic composition of Examples 1 to 4 is improved in the coating durability than the case of Comparative Examples 1 and 2.

Test Example 2 Usability Test by Professional Panel

The sensory evaluation on usability after using Examples 1 to 4 and Comparative Examples 1 and 2 was conducted to the test subjects (15 women, 20 to 40 years of routine makeup makeup) through a questionnaire. The questionnaire was conducted for foundation persistence, application uniformity and stickiness after applying formulation a (foundation) and spraying formulation b (mist). For each item, 1-5 points (the higher the number, the higher the satisfaction) about the effect of the product were displayed to be divided, and the results are shown in Table 4 below.

sample Satisfaction (Average Score) Persistence Coating uniformity Sticky Example 1 (1a + 1b) 4.9 4.5 3.9 Example 2 (2a + 2b) 4.8 4.1 3.5 Example 3 (3a + 3b) 4.5 4.5 4.0 Example 4 (4a + 4b) 4.1 4.3 3.1 Comparative Example 1 (1a + 1b) 2.1 3.2 3.3 Comparative Example 2 (2a + 2b) 2.5 2.5 2.5

As can be seen from Table 4, in the case of Examples 1 to 4 according to the present invention it can be seen that the effect of improving the durability and coating uniformity of the foundation compared to Comparative Examples 1-2. In addition, it can be seen that the effect is somewhat improved in terms of stickiness.

In the above embodiment, the foundation formulation has been described as an example, but the scope of the present invention is not limited thereto, and it will be apparent to those skilled in the art that various applications such as makeup base, foundation, concealer, and skin cover can be applied.

As described above, in the present invention, an oil-in-water emulsion formulation containing a gelling component is first applied, and then a thin and smooth film is formed on the skin by spraying a mist containing a cationic component to prevent external sweat, water, and dust. It protects your makeup from your back and you can feel the refreshing refreshing feeling. The makeup cosmetics prepared in this way are light and soft in use, and exhibit excellent makeup persistence without being greasy when applied to the skin.

Claims (6)

(A) A composition for primary application containing a gelatinization component as an oil-in-water emulsion formulation; And (B) Secondary coating composition containing a cationic component as a mist formulation Makeup cosmetic composition comprising a. The method of claim 1, wherein the gelatinization component is contained in 0.01 to 5.00% by weight based on the total weight of the primary coating composition, the cationic component is contained in 0.01 to 5.00% by weight relative to the total weight of the secondary coating composition Makeup cosmetic composition, characterized in that. The makeup cosmetic composition according to claim 1, wherein the gelling component is selected from the group consisting of gellan gum, xanthan gum, cellulose gum, agar, alginic acid and alginate salt. The makeup cosmetic composition according to claim 1, wherein the cationic component is selected from the group consisting of sodium ions, potassium ions and magnesium ions. The makeup cosmetic composition according to claim 1, wherein after applying the composition for primary application to the face, the composition for secondary application is lightly sprayed onto the face. The makeup cosmetic composition according to claim 1, wherein the makeup cosmetic composition is a formulation selected from the group consisting of a makeup base, a foundation, a concealer and a skin cover.