KR20220015644A - Cosmetic composition for eye makeup - Google Patents

Abstract

The present invention relates to a cosmetic composition for eye makeup excellent in dispersion stability, spreadability and durability.

Description

Cosmetic composition for eye makeup}

The present invention relates to a cosmetic composition for eye makeup excellent in dispersion stability, spreadability and durability. In particular, the present invention relates to a cosmetic composition applicable to an eyeliner product.

Cosmetic compositions for eye makeup, such as mascara and eyeliner, are applied to eyelashes or around the eyes to emphasize the contours of the eyes and are used for the purpose of imparting beauty to the eyes. Mascara has a volume function that makes the eyebrows look thicker and thicker, a curling function that raises the eyebrows to make the eyes look clearer, and a long lash function that makes the eyebrows look longer. On the other hand, eyeliner gives a clear line around the eyes to make the eyes look clearer.

Since the cosmetic composition for eye makeup is applied around the eyes, it must not cause irritation to the eyes, and it dries quickly so that it does not stick under the eyebrows immediately after application. In addition, it should be able to be applied uniformly so that there is no powder flying, there is little possibility of contamination by microorganisms, and it should be easily removed when washing the face.

In order to produce clear eyes, the cosmetic composition for eye makeup usually includes carbon black and iron oxide-based pigments, which are uniformly and stably dispersed by a hydrophilic surfactant. In addition, durability with respect to friction and oil and water is improved by a film former component such as an acrylate copolymer. However, if the content of the film-forming agent is small, the durability may be reduced, and if the content is high, it may cause uneven discharge. Therefore, the content of the film-forming agent component and the film-forming agent and the hydrophilic surfactant is very important in the formulation of the formulation.

The present invention provides a cosmetic composition for eye makeup excellent in dispersion stability, spreadability and durability.

The cosmetic composition for eye makeup of the present invention contains a film former and a hydrophilic surfactant in a weight ratio of 3.5 to 9.5: 1.

The present invention provides a cosmetic composition for eye makeup excellent in dispersion stability, spreadability and durability. The cosmetic composition for eye makeup according to the present invention can be applied to eyeliner products, has excellent pigment dispersibility, fast drying speed, and excellent water and oil resistance, so that eye makeup is maintained for a long time.

1 is a photograph observing the drying rate of the cosmetic compositions of Example 3 and Comparative Example 1.

EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated. However, it is not limited only by the following content, and each component may be variously modified or selectively mixed as needed. Accordingly, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

The cosmetic composition for eye makeup of the present invention includes a film former and a hydrophilic surfactant. The cosmetic composition may further include aqueous components and additives commonly used in the art.

film former

In the cosmetic composition for eye makeup of the present invention, an acrylate copolymer, an acrylate/octyl acrylamide copolymer, or a mixture thereof may be used as a film forming agent. In addition to the role of forming a film, the film forming agent may also serve to improve the dispersibility of carbon black and iron oxide, which are colorants.

As the acrylate copolymer, one prepared by polymerizing an acrylic acid ester-based monomer may be used. The acrylic acid ester-based monomer may include an acrylic acid ester, a methacrylic acid ester, or a mixture thereof. Examples of the acrylic acid ester include methyl acrylate, ethyl acrylate, butyl acrylate, hexyl acrylate, octyl acrylate, 2-ethylhexyl acrylate, or a mixture thereof. Examples of the methacrylic acid ester include methyl methacrylate, ethyl methacrylate, butyl methacrylate, hexyl methacrylate, octyl methacrylate, 2-ethylhexyl methacrylate, etc. are mentioned.

In addition, as the acrylate copolymer, one prepared by polymerizing an acrylic acid ester-based monomer and a copolymerized monomer may be used. Examples of the copolymer monomer include olefins such as acrylic acid, methacrylic acid, vinyl acetate, styrene, ethylene, and propylene.

As the acrylate/octyl acrylamide copolymer, one prepared by polymerizing the acrylic acid ester-based monomer and octyl acrylamide may be used. In addition, as the acrylate/octyl acrylamide copolymer, one prepared by polymerizing the acrylic acid ester-based monomer, the copolymerized monomer, and octyl acrylamide may be used.

The film former may include an acrylate copolymer and an acrylate/octylacrylamide copolymer. For example, the film forming agent may include an acrylate copolymer and an acrylate/octyl acrylamide copolymer in a weight ratio of 3 to 25: 1, for example, 4.5 to 21: 1, and in another example, 6.3 to 10: 1. have. When the acrylate copolymer is used in less than 3 weight ratio compared to the acrylate/octyl acrylamide copolymer, it may affect the viscosity of the formulation and cause uneven discharge or may not be applied smoothly. Adhesion and water resistance may be reduced.

The film forming agent may be included in an amount of 5 to 20% by weight, for example, 8 to 15% by weight, based on the total weight of the cosmetic composition. If the content of the film forming agent is less than 5% by weight, water resistance may be reduced, and if it exceeds 20% by weight, non-uniform discharge may be caused or a soft feeling of use may be deteriorated.

hydrophilic surfactant

The cosmetic composition for eye makeup of the present invention may use a hydrophilic surfactant as a surfactant. As the hydrophilic surfactant, a conventional hydrophilic surfactant used in a cosmetic composition may be used without limitation, and for example, a fatty acid ether-based surfactant may be used.

As the fatty acid ether-based surfactant, a combination of various fatty acids and an ether group (-OCH ₂ CH ₂ ) may be used. The fatty acid may be a fatty acid having 10 to 25 carbon atoms, for example, 12 to 22 carbon atoms. For example, it may be a lauryl, myristyl, palmityl or stearyl fatty acid. The number of carbon atoms included in the ether group may be 2 to 30.

For example, the fatty acid ether surfactant is laureth-2 (laureth-2), laureth-3 (laureth-3), laureth-4 (laureth-4), laureth-5 (laureth-5), la Laureth-6, Laureth-7, Laureth-7, Laureth-8, Laureth-21, Laureth-21, Laureth-30, Behe Beheneth-4, Beheneth-8, Beheneth-30, Steareth-2, Steareth-4, Steareth-4 Ares-10 (steareth-10), Steareth-20 (steareth-20), Steareth-21 (steareth-21) Steareth-30 (steareth-30), etc. may be, but is not limited thereto. For example, the surfactant may include Laureth-21, Behenes-30, Steareth-20, or a mixture thereof.

The hydrophilic surfactant may be included in an amount of 0.6 to 5% by weight, for example, 1.5 to 2.5% by weight, based on the total weight of the cosmetic composition. If the content of the surfactant is less than 0.6% by weight, dispersibility may be reduced, and if it exceeds 5% by weight, water resistance may be reduced.

The cosmetic composition for eye makeup of the present invention contains the film former and the hydrophilic surfactant in a weight ratio of 3.5 to 9.5: 1, for example, 5 to 7: 1. When the film-forming agent is used in less than the above-mentioned compounding ratio, the drying rate may be slowed and bleeding may occur.

pH adjuster

The cosmetic composition for eye makeup of the present invention may include a pH adjusting agent. As the pH adjusting agent, alkanol amines, which are compounds in which the hydrogen atom of ammonia is substituted with an aliphatic alcoholic OH group, may be used, and non-limiting examples include aminomethylpropanol, aminomethylpropanediol, tromethamine, and triethanolamine. . Also, an inorganic base such as sodium hydroxide or potassium hydroxide may be used.

The pH adjusting agent may be used within the content range commonly used in the art. The content of the pH adjusting agent may be adjusted according to the content of the acrylate/octyl acrylamide copolymer, and when used in an amount that cannot be properly neutralized, the dispersibility of the acrylate/octyl acrylamide copolymer in the formulation may be deteriorated. .

The cosmetic composition for eye makeup of the present invention can be applied to a formulation including mascara, liquid eye shadow, eyebrow and eyeliner. As an example, it may be applied to an eyeliner product, but is not limited thereto.

The cosmetic composition may include an aqueous phase component commonly used in the art. For example, it may include components such as water, glycerin, butylene glycol, dipropylene glycol, dipropylene glycol, pentylene glycol, but is not limited thereto.

In addition, it may include additives commonly used in the art within a range that does not impair the purpose and effect of the present invention. For example, colorants, powders, dispersants, preservatives, thickeners, antioxidants, dyes, pigments, other functional ingredients, etc. may be included, and they are introduced in an amount commonly used in the art.

Hereinafter, the present invention will be described in more detail through examples. However, the following examples are provided to help the understanding of the present invention, and the scope of the present invention is not limited to the examples in any sense.

[Experimental Example 1] Evaluation of physical properties according to the mixing ratio of the film forming agent and the hydrophilic surfactant

According to the composition shown in Table 1 below, butylene glycol, preservative, disodium EDTA, hydrophilic surfactant, and pH adjuster were added to water, heated to 80 to 85 °C, and then completely dissolved. After adding alcohol to the prepared solution, it was uniformly dispersed. Finally, a film forming agent and a colorant were added and uniformly dispersed to prepare cosmetic compositions of Examples 1-6 and Comparative Examples 1-2. The usage unit of each component in Table 1 below is a part by weight.

Film former: acrylate copolymer

Hydrophilic surfactant: Behenes-30

Colorant: carbon black

Alcohol: Ethanol

Preservative: Phenoxyethanol

pH Adjuster: Tromethamine

The cosmetic compositions prepared in Examples and Comparative Examples were evaluated for physical properties in the following manner, and the results are shown in Table 2 below.

discharge

The cosmetic compositions prepared in Examples and Comparative Examples were filled in a direct-filling type pen eyeliner container, and the discharge degree was observed after 10 minutes.

(Evaluation standard)

◎: Complete discharge (excellent), ○: Discharge in progress (good), X: No discharge (poor)

spreadability

The cosmetic composition prepared in each Example and Comparative Example was filled in an eyeliner container, and applied to the skin the next day to evaluate the spreadability.

(Rating criteria) 1 (bad) to 5 (good)

dryness

The cosmetic composition prepared in each Example and Comparative Example was applied to the skin and the degree of smearing was measured after 1 minute.

(Evaluation Criteria) 1 (Smeared) to 5 (No Spilled)

As shown in Table 2, the cosmetic compositions of Examples 1-6 using the film former and the hydrophilic surfactant in the mixing ratio of the present invention were confirmed to have excellent discharge, spreadability and drying properties. On the other hand, it was confirmed that the cosmetic composition of Comparative Example 1-2, in which the film forming agent and the hydrophilic surfactant were used in a range outside the blending ratio of the present invention, was inferior to at least one of spreadability and drying properties. In addition, as shown in FIG. 1 , smearing was not observed in the case of the cosmetic composition of Example 3, whereas smearing and smearing were confirmed in the case of the cosmetic composition of Comparative Example 1.

[Experimental Example 2] Evaluation of physical properties according to the composition of the film forming agent

According to the composition shown in Table 3 below, butylene glycol, preservative, disodium EDTA, hydrophilic surfactant, and pH adjuster were added to water, heated to 80 to 85 °C, and then completely dissolved. In a separate container, alcohol and an acrylate/octyl acrylamide copolymer were added and uniformly dispersed (AGI MIXING), and then added to the prepared solution and uniformly dispersed. Finally, an acrylate copolymer and a colorant were added and uniformly dispersed to prepare a cosmetic composition of Examples 7-13. The usage unit of each component in Table 3 below is a part by weight.

Hydrophilic surfactant: Behenes-30

Colorant: carbon black

Alcohol: Ethanol

Preservative: Phenoxyethanol

pH Adjuster: Tromethamine

The cosmetic compositions prepared in each Example were evaluated for physical properties by the following method, and the results are shown in Table 4 below.

discharge

The cosmetic composition prepared in each Example was filled in a direct filling type pen eyeliner container, and the discharge degree was observed after 10 minutes.

(Evaluation standard)

◎: Complete discharge (excellent), ○: Discharge in progress (good), X: No discharge (poor)

water resistance

The cosmetic composition prepared in each Example was filled in an eyeliner container, applied to the forearm, and then completely dried for 10 minutes. After 0.5 g of saline solution was applied to the applied area and left for 1 minute, rubbing was applied 5 times with a cotton pad to observe the smearing pattern.

(Evaluation Criteria) 1 (Erase well) to 5 (Not easily erased)

oil resistance

The cosmetic composition prepared in each Example was filled in an eyeliner container, applied to the forearm, and then completely dried for 10 minutes. After applying 0.5 g of artificial sebum to the applied area, leaving it for 1 minute, rubbing it 5 times with a cotton pad was observed to see how it was smeared.

(Evaluation Criteria) 1 (Erase well) to 5 (Not easily erased)

maintenance

The cosmetic composition prepared in each Example was filled in an eyeliner container, applied to the forearm, and then completely dried for 10 minutes. Rubbing was applied 10 times with a cotton pad, and the smearing pattern was observed.

(Evaluation Criteria) 1 (Erase well) to 5 (Not easily erased)

As shown in Table 4, the cosmetic compositions of Examples 7-13 using the film forming agent and the hydrophilic surfactant in the blending ratio of the present invention exhibited excellent physical properties in all of the measured physical properties. In particular, in the case of Examples 7-10 and 12, in which the acrylate copolymer and the acrylate/octyl acrylamide copolymer were mixed in a weight ratio of 3 to 25: 1, the water resistance compared to the compositions of Examples 11 and 13 out of the above weight ratio , it was confirmed that the oil resistance and retention properties were more excellent.

[Experimental Example 3] Evaluation of physical properties according to the content of hydrophilic surfactant

A cosmetic composition of Examples 14-16 was prepared in the same manner as in Experimental Example 1 except for the composition shown in Table 5 below. The usage unit of each component in Table 5 below is a part by weight.

Film former: mixture of acrylate copolymer and acrylate/octylacrylamide copolymer (7:1 mixing ratio (weight ratio))

Hydrophilic surfactant: Behenes-30

Colorant: carbon black

Alcohol: Ethanol

Preservative: Phenoxyethanol

pH Adjuster: Tromethamine

The cosmetic composition prepared in each Example was evaluated for physical properties by the following method, and the results are shown in Table 6 below.

Dispersion Safety

The cosmetic composition prepared in each Example was filled in an eyeliner container, and stored at 40° C. for 4 weeks in each direction (sizing, inverting, transversal). The discharge pattern was observed for each parking, and the color deviation was checked after applying the samples stored in each direction to the forearm.

(Rating criteria) 1 (bad) to 5 (good)

water resistance

The cosmetic composition prepared in each Example was filled in an eyeliner container, applied to the forearm, and then completely dried for 10 minutes. After 0.5 g of saline solution was applied to the applied area and left for 1 minute, rubbing was applied 5 times with a cotton pad to observe the smearing pattern.

(Evaluation Criteria) 1 (Erase well) to 5 (Not easily erased)

As shown in Table 6, the cosmetic compositions of Examples 14-16 using the film forming agent and the hydrophilic surfactant in the blending ratio of the present invention exhibited excellent physical properties in all of the measured physical properties. In particular, in the case of Example 14, in which the film forming agent is mixed within the range of 5 to 20% by weight and the hydrophilic surfactant within the range of 0.6 to 5% by weight, dispersion stability and water resistance compared to the composition of Examples 15.16 outside the above content range This was found to be even better.

Claims (5)

A cosmetic composition for eye makeup comprising a film former and a hydrophilic surfactant in a weight ratio of 3.5 to 9.5: 1. The cosmetic composition for eye makeup according to claim 1, wherein the film former is an acrylate copolymer, an acrylate/octyl acrylamide copolymer, or a mixture thereof. The cosmetic composition for eye makeup according to claim 1, wherein the film forming agent comprises an acrylate copolymer and an acrylate/octyl acrylamide copolymer in a weight ratio of 3 to 25: 1. The cosmetic composition for eye makeup according to claim 1, wherein the hydrophilic surfactant is a fatty acid ether surfactant. The cosmetic composition for eye makeup according to claim 1, comprising 5 to 20% by weight of the film former and 0.6 to 5% by weight of the hydrophilic surfactant, based on the total weight of the cosmetic composition for eye makeup.

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