KR20210010094A - Water-in-Oil Type Make-up Cosmetic Composition Containing Acrylate-based Copolymer and Cover Powder - Google Patents

Abstract

The present invention relates to a water-in-oil type makeup cosmetic composition comprising an acrylate-based copolymer and a cover powder as active ingredients. More particularly, the present invention relates to a cosmetic composition which contains an acrylate-based copolymer and a cover powder as active ingredients, and is thus excellent in the effect of covering skin flaws, when applied to the skin, with a specified transmittance and a specified L value change rate, which are indicators of coverage for skin flaws.

Description

Water-in-Oil Type Make-up Cosmetic Composition Containing Acrylate-based Copolymer and Cover Powder}

The present invention relates to a water-in-oil-type makeup cosmetic composition containing an acrylate-based copolymer and a cover powder as an active ingredient, and more particularly, to a skin defect when applying the skin by containing an acrylate-based copolymer and a cover powder as an active ingredient. It relates to a cosmetic composition excellent in the effect of covering skin defects with a specified L value change rate and a specified transmittance, which are indicators of coverage for.

In conventional foundation cosmetics, high molecular compounds have been mainly used to enhance the makeup persistence of makeup, and to increase the covering power (coverage) of skin defects, the types, combinations and contents of cover powders (pigments, etc.) Although the method of controlling the was adopted, there was a problem in that it felt stiff and dry in terms of use when the used capacity of the cover powder was increased. Accordingly, there is a need for a means capable of improving the coverage of skin defects without increasing the amount of cover powder.

In general, cosmetic compositions are classified into water in oil (W/O), oil in water (O/W) type, oil dispersion, water dispersion, etc., depending on the type of continuous phase and dispersed phase. The water-in-water or water-dispersible formulation exhibits a refreshing and light feeling of use, but has a disadvantage in that it has a waterproof effect, that is, water resistance, and has a low glossiness. In addition, the water-in-oil or oil-dispersion formulation has a disadvantage of showing a somewhat heavier feeling compared to the oil-in-water or water-dispersion formulation, and it is difficult to manufacture using raw materials that do not dissolve well in the oil phase. In addition, when emulsifying using an emulsifier, there is a limit to the color realization.

According to the prior art, although pigments (e.g., titanium dioxide, which is a metal oxide, etc.) and polymer compounds having excellent coverage (shielding/hiding) power against skin defects have been used in various cosmetic formulations (Patent Document 1 below) -2), for the purpose of manufacturing a water-in-oil cosmetic composition that exhibits excellent coverage against skin defects, a combination of an acrylate-based copolymer and a cover powder is used in conjunction with the rate of change and transmittance of the L value, which is an index of coverage against skin defects. Examples have not been specifically disclosed.

Korean Patent Application Publication No. 10-2006-0080753 (Publication date: July 11, 2006) Korean Patent Application Publication No. 10-2015-0011887 (Publication date: February 3, 2015)

An object of the present invention is a water-in-oil type containing as an active ingredient a mixture of an acrylate-based copolymer and a cover powder combined (blended or mixed) to show excellent coverage in connection with L value change rate and transmittance, which are indicators of coverage for skin defects. It is to provide a makeup cosmetic composition, preferably a water-in-oil makeup cosmetic composition having an excellent covering effect of skin defects when applied to the skin.

As a result of the inventors' diligent efforts to develop a makeup cosmetic composition that has an excellent covering effect of skin defects when applying the skin, the L value change rate is 0 to 0.40, preferably 0.01 to 0.39, more preferably 0.16 to 0.34, and as an index of coverage for skin imperfections, by mixing (blending) an acrylate-based copolymer and a cover powder so that the transmittance is 0 to 13.00, preferably 0.01 to 12.99, more preferably 10.10 to 12.60. The present invention was completed by discovering that a makeup cosmetic composition having excellent coverage against skin defects can be implemented.

Based on these findings, the present invention provides a water-in-oil type makeup cosmetic composition containing an acrylate-based copolymer and a cover powder as an active ingredient, preferably as an index of coverage for skin defects, of a specified L value change rate and a specified transmittance. Provides a water-in-oil type makeup cosmetic composition that has excellent covering effect for skin defects with its covering power.

The water-in-oil makeup cosmetic composition according to the present invention is an improved covering effect for skin defects through the combined use of an acrylate-based copolymer and a cover powder, that is, as an index of coverage for skin defects, and a specified L value change rate and a specified transmittance. It provides excellent covering effect against skin defects with its covering power.

1 is an indicator of coverage for skin flaws, showing a method of confirming coverage for skin flaws with an L value change rate, and a composition to be tested on paper having a white section and a black section used for measuring a colorimeter (Example This is a photograph of a sample coated with 1) evenly with the same thickness.
2 is an indicator of coverage for skin defects, showing a method of confirming the coverage for skin defects by transmittance, in which the composition to be tested (Example 1) was uniformly applied with the same thickness on a transparent film paper used for measuring transmittance. This is a picture of a sample.

Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by an expert skilled in the art to which the present invention belongs. In general, the nomenclature used in this specification is well known and commonly used in the art.

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

In this specification, the term "about" used to express length, area, volume, time (period), concentration, content, temperature, etc. means that there is a tolerance of up to 10% in the corresponding value or numerical range.

In one aspect, the present invention provides a water-in-oil type makeup cosmetic composition containing an acrylate-based copolymer and a cover powder as an active ingredient, an effect of covering skin defects when applied to the skin exterminately (e.g., spots on the skin, pigmentation and It is a water-in-oil type makeup cosmetic composition with excellent effect of covering the same blemishes, etc.,

The coverage index for the skin flaws of the composition, that is, the rate of change of the L value for the skin coverage is 0 to 0.40, preferably 0.01 to 0.39, more preferably 0.16 to 0.34, and the transmittance for skin covering power is 0 to 13.00, preferably It relates to a water-in-oil type makeup cosmetic composition, characterized in that it is 0.01 to 12.99, more preferably 10.10 to 12.60.

The rate of change of the L value for the skin coverage of the composition may be calculated using Equation 1 below.

[Equation 1]

L value change rate = dL x 100/(L ₀ value)

(Here, the lower the rate of change of the L value, the higher the coverage of skin defects; dL = L ₁ value-L ₀ value; L ₀ is the uniform thickness of the composition to be tested on paper having white and black sections. After coating, the black section is measured with a colorimeter and the L value represents the color and contrast, and L ₁ is the white section after applying the composition to be tested to a paper having a white section and a black section in a uniform thickness. Is an L value representing the color and contrast obtained by measuring with a colorimeter).

The L value representing the hue and contrast may be characterized by being determined by the intensity and persistence of each of the hue and contrast.

The rate of change of the L value for the skin coverage is the same thickness, preferably 1.0 to 10.0 μm, more preferably 3.5 to 4.0 μm, most preferably 3.7 to 3.9 μm on paper having a white section and a black section. After uniformly applying the composition to be tested (a water-in-oil type makeup cosmetic composition to be tested), L ₀ and measured using a color difference meter It may be characterized in that it is calculated by introducing L ₁ into Equation 1 above.

When the thickness of the composition to be tested applied on the paper having the white section and the black section is less than 1.0 μm, the background color (white section and black section) of the paper is L ₀ and The effect on the measurement of the L ₁ value is increased, so that the L ₀ and It may be difficult to check the skin coverage of the composition to be tested because the difference in the measured value of L ₁ disappears.If the thickness of the composition to be applied exceeds 10.0 μm, the background color is not seen at all due to the thick coating thickness of the composition to be tested. L _{0 of the} composition to be tested and Since the L ₁ measurement value may be inaccurate, it may be difficult to confirm the skin coverage of the composition to be tested.

When the L value change rate for the skin coverage of the composition is less than 0, the skin coverage may no longer increase, and when the L value change rate exceeds 0.40, the skin coverage may be lowered.

The transmittance for the skin coverage is the same thickness on the transparent film paper, preferably 1.0 to 10.0 μm, more preferably 3.5 to 4.0 μm, most preferably 3.7 to 3.9 μm, and the composition to be tested (water-in-oil type makeup After uniformly applying the cosmetic composition), it may be characterized in that it is measured using a transmittance meter.

If the thickness of the test composition applied on the transparent film paper is less than 1.0 μm, the effect from the transparent film paper increases, making it difficult to measure the transmittance of the composition to be tested, making it difficult to confirm the skin coverage of the composition to be tested. When the thickness of the target composition exceeds 10.0 μm, the value of the transmittance may be incorrect due to the thick coating thickness of the composition to be tested, so it may be difficult to confirm the skin coverage of the composition to be tested.

When the transmittance of the composition to the skin coverage is less than 0, the skin coverage may no longer increase, and when the L value change rate exceeds 13.00, the skin coverage may be lowered.

The weight ratio of the acrylate-based copolymer and the cover powder contained in the composition may be 1.5 to 7.0: 1.0 to 30.0, preferably 1.5 to 6.5: 1.1 to 27.0, most preferably 1.5 to 6.5: 25.0 to 27.0.

The acrylate-based copolymer is preferably an acrylate copolymer * isododecane (INCI: Isododecane (and) Acrylates Copolymer), but is not limited thereto.

The acrylate-based copolymer may be dispersed in isododecane to have a spherical agglomerated shape, but is not limited thereto.

The content of the acrylate-based copolymer contained in the composition may be 1.5% by weight or more, preferably 1.5 to 7.0% by weight, and most preferably 1.5 to 6.5% by weight based on the total weight of the composition. When the content of the acrylate-based copolymer contained in the composition is less than 1.5% by weight, skin coverage may no longer increase, and when the content of the acrylate-based copolymer exceeds 7.0% by weight, the feeling of use (sliding, etc.) This can be degraded.

The cover powder includes zinc oxide, fine particles titanium dioxide, titanium dioxide, zinc oxide, talc, kaolin, silica, talc, sericite. ), one or more selected from the group consisting of calcium carbonate and magnesium carbonate, preferably one selected from the group consisting of zinc oxide, particulate titanium dioxide, titanium dioxide, zinc oxide, and silica As described above, most preferably, it may be a mixture consisting of zinc oxide, fine particle titanium dioxide, titanium dioxide, zinc oxide, and silica, but is not limited thereto.

The content of the cover powder contained in the composition may be 1.0 to 30.0% by weight, preferably 1.1 to 27.0% by weight, and most preferably 25.0 to 27.0% by weight, based on the total weight of the composition. When the content of the cover powder contained in the composition is less than 1.0% by weight, the skin coverage may not increase any more, and when the content of the cover powder exceeds 30.0% by weight, the spreadability decreases, or the formulation is difficult to form. I can.

The composition may be characterized in that it further contains at least one selected from the group consisting of surfactants and oils.

The surfactants are lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone and lauryl PEG-9 polydimethylsiloxyethyl dimethicone (Lauryl PEG-9 Polydimethylsiloxyethyl). Dimethicone) may be one or more selected from the group consisting of, but is not limited thereto.

The content of the surfactant contained in the composition may be 0.3 to 10.0% by weight, preferably 2.0 to 8.0% by weight, based on the total weight of the composition. When the content of the surfactant contained in the composition is less than 0.3% by weight, the formulation is not formed, and when the content of the surfactant exceeds 10.0% by weight, it is not easy to mix with other active ingredients due to the formation of micelles between excessive surfactants. Formulation formation can be reduced.

The oil may be one or more selected from the group consisting of cyclopentasiloxane*cyclohexasiloxane and methyl trimethicone, but is not limited thereto.

The content of oil contained in the composition may be 20.0 to 60.0% by weight, preferably 20.0 to 50.0% by weight, and most preferably 20.0 to 30.0% by weight, based on the total weight of the composition. When the content of the oil contained in the composition is less than 20.0% by weight, the skin coverage may not increase any more, and when the content of the oil exceeds 60.0% by weight, the skin coverage may be lowered.

The composition includes a moisturizing agent (polyol, etc.), a viscosity adjusting agent, a thickening agent, a pH adjusting agent, a fat, an organic solvent, a solubilizing agent, a thickening agent, a gelling agent, an emollient, an antioxidant, a suspending agent, a stabilizer, a foaming agent, a fragrance, Cosmetics such as ionic emulsifiers, nonionic emulsifiers, fillers, sequestrants, chelating agents, preservatives, vitamins, wetting agents, hydrophilic activators, lipophilic activators, lipid vesicles, or any other ingredients commonly used in cosmetics Or it may contain adjuvants commonly used in the field of dermatology. The adjuvant is introduced in an amount generally used in the field of cosmetics or dermatology. In addition, the composition may contain a substance that promotes skin absorption in order to increase the effect of improving skin conditions.

In the present invention, the water in oil (O/W) type is an emulsion formulation wherein the continuous phase is an oil phase and the dispersed phase is an aqueous phase.

The composition is milk lotion, moisture lotion, nutrition lotion, massage cream, nutrition cream, moisture cream, hand cream, essence, nutrition essence, body lotion, foundation, powder, makeup base, sunscreen, primer, concealer, etc., preferably It may be formulated as one or more selected from the group consisting of a foundation, powder, makeup base, sunscreen, primer, and concealer, but is not limited thereto.

Hereinafter, the present invention will be described in more detail through examples. These examples are for illustrative purposes only, and it will be apparent to those of ordinary skill in the art that the scope of the present invention is not construed as being limited by these examples.

[ Manufacturing example One] Acrylate system Copolymer And a cover powder containing Water-in-oil Preparation of makeup cosmetic composition

The composition to be tested (test subject water-in-oil type makeup cosmetic composition) of Examples 1 to 4 and Comparative Examples 1 to 12 was prepared in the composition of Tables 1 to 2 (unit: wt%).

Example One Example 2 Example 3 Example 4 Comparative example One Comparative example 2 Comparative example 3 Comparative example 4 Polymer compound (type) 4.00 (acrylate copolymer * isododecane) 1.60 (acrylate copolymer * isododecane) 2.80 (acrylate copolymer * isododecane) 6.00 (acrylate copolymer * isododecane) 4.00 (trimethylsiloxysilicate*polypropylsilsesquioxane*cyclopentasiloxane) 4.00 (polyphenylsilsesquioxane/trimethylsiloxysilicate*dimethicone) 4.00 (acrylate/dimethicone copolymer*cyclopentasiloxane) 4.00 (polypropylsilsesquioxane*cyclopentasiloxane) Silica 0.40 0.40 0.40 0.40 0.40 0.40 0.40 0.40 Particulate titanium dioxide 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 Zinc oxide 10.00 10.00 10.00 10.00 10.00 10.00 10.00 10.00 Titanium dioxide (CI 77891) 9.75 9.75 9.75 9.75 9.75 9.75 9.75 9.75 Zinc oxide (CI 77492 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 Zinc oxide (CI 77491) 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 Zinc oxide (CI 77499) 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 Sorbitan isostearate 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Laurylpolyglyceryl-3polydimethylsiloxyethyldimethicone 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 Cyclopentasiloxane*cyclohexasiloxane 19.91 22.31 21.11 17.91 19.91 19.91 19.91 19.91 Methyl trimethicone 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 Ethylhexylmethoxycinnamate 7.00 7.00 7.00 7.00 7.00 7.00 7.00 7.00 Disteadimonium hectorite 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 Disodium EDTA 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 Sodium chloride 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 Propanediol 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 1,2-hexanediol 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 ethanol 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 Distilled water 26.71 26.71 26.71 26.71 26.71 26.71 26.71 26.71

Comparative example 5 Comparative example 6 Comparative example 7 Comparative example 8 Comparative example 9 Comparative example 10 Comparative example 11 Comparative example 12 Polymer compound (type) 4.00 (trimethylsiloxysilylcarbamoylpululan*isododecane) 4.00 (trifluoropropyldimethylsiloxy/trimethylsiloxysilicate*cyclopentasiloxane) 4.00 (acrylate/polytrimethylsiloxymethacrylate copolymer*cyclopentasiloxane) 4.00 (acrylate/polytrimethylsiloxymethacrylate copolymer*isododecane) 4.00 (trimethylsiloxysilicate*cyclopentasiloxane) 4.00 (polymethylsilsesquioxane*dimethicone) 0.40 (acrylate copolymer * isododecane) - Silica 0.40 0.40 0.40 0.40 0.40 0.40 0.40 0.40 Particulate titanium dioxide 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 Zinc oxide 10.00 10.00 10.00 10.00 10.00 10.00 10.00 10.00 Titanium dioxide (CI 77891) 9.75 9.75 9.75 9.75 9.75 9.75 9.75 9.75 Zinc oxide (CI 77492 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 Zinc oxide (CI 77491) 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 Zinc oxide (CI 77499) 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 Sorbitan isostearate 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Laurylpolyglyceryl-3polydimethylsiloxyethyldimethicone 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 Cyclopentasiloxane*cyclohexasiloxane 19.91 19.91 19.91 19.91 19.91 19.91 23.51 23.91 Methyl trimethicone 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 Ethylhexylmethoxycinnamate 7.00 7.00 7.00 7.00 7.00 7.00 7.00 7.00 Disteadimonium hectorite 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 Disodium EDTA 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 Sodium chloride 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 Propanediol 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 1,2-hexanediol 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 ethanol 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 Distilled water 26.71 26.71 26.71 26.71 26.71 26.71 26.71 26.71

[ Test example 1] For skin blemishes Coverage The rate of change of the L value, an index, Coverage Confirm

(1) As shown in Fig. 1, each test target composition (Examples 1 to 4 and Comparative Examples 1 to 12) was applied to the same thickness (3.81 μm) on paper produced (printed) to have a white section and a black section. It was evenly applied with.

(2) Using a colorimeter (Spectrophotometer CM-5, KONICA MINOLTA), the L value of the black section of the paper on which the composition to be tested is uniformly applied is measured in an 8mm hole and SCE specular components. Measurement was performed, and the L value in the black section of the paper measured in this way was named as L ₀ (L ₀ value measurement step).

(3) The L value of the white section of the paper uniformly coated with each of the test target compositions was measured in an 8mm hole and SCE specular component with a colorimeter, and the L value in the white section of the paper measured in this way was L ₁ Named (L ₁ value measurement step).

(4) The L value change rate was calculated by Equation 1 below using the L ₀ value and the L ₁ value (here, the lower the L value change rate, the higher the coverage against skin defects).

[Equation 1]

L value change rate = dL x 100/(L ₀ value)

(here,

L ₀ is an L value representing the color and contrast obtained by applying the composition to be tested to a paper having a white section and a black section in a uniform thickness, and then measuring the black section with a colorimeter,

L ₁ is an L value representing the color and contrast obtained by applying the composition to be tested to a paper having a white section and a black section to a uniform thickness, and then measuring the white section with a colorimeter,

dL is the difference between the L ₁ value and the L ₀ value).

As a result, as shown in Table 3, the composition to be tested containing the acrylate copolymer * isododecane according to Examples 1 to 4 and silica as a cover powder had a low L value change rate and high coverage against skin defects. Confirmed. On the other hand, it was confirmed that the test target composition not containing the acrylate copolymer * isododecane according to Comparative Examples 1 to 10 had a high rate of change of the L value, and thus had low coverage against skin defects.

In addition, as a result of calculating the L value change rate by varying the content of acrylate copolymer * isododecane in the composition to be tested, Examples 1 to in which the content of acrylate copolymer * isododecane in the composition to be tested is 1.6% by weight or more. The composition to be tested according to 4 showed a rate of change of L value of 0.4 or less, and it was confirmed that the coverage for skin defects was high.

In addition, when the weight ratio of the acrylate copolymer * isododecane and the cover powder contained in the composition to be tested was 1.60 to 6.00: 26.33 belonging to the weight ratio range defined and defined in the present invention, 1.5 to 7.0: 1.0 to 30.0, L value change rate It was found to be 0.16 to 0.34, and it was confirmed that the coverage against skin defects was high. In particular, the composition to be tested according to Example 1, specifically, the composition to be tested in which the weight ratio of the copolymer * isododecane and the cover powder is 4.00: 26.33 while containing the content of acrylate copolymer * isododecane at 4.00% by weight. It was confirmed that the rate of change of the L value was 0.16, showing the highest coverage for skin defects.

Example One Example 2 Example 3 Example 4 Comparative example One Comparative example 2 Comparative example 3 Comparative example 4 L ₀ 86.54 86.16 71.05 85.93 68.78 73.55 67.85 70.10 L ₁ 86.68 86.39 71.29 86.21 69.92 75.95 69.60 72.55 dL 0.14 0.23 0.24 0.28 1.14 2.40 1.75 2.45 L value change rate 0.16 0.27 0.34 0.33 1.66 3.26 2.58 3.50 Comparative example 5 Comparative example 6 Comparative example 7 Comparative example 8 Comparative example 9 Comparative example 10 Comparative example 11 Comparative example 12 L0 70.27 70.08 70.53 68.73 72.31 74.02 73.14 72.89 L1 71.76 74.43 71.08 71.59 73.75 75.92 73.67 74.54 dL 1.49 4.35 0.55 2.86 1.44 1.90 0.53 1.65 L value change rate 2.12 6.21 0.78 4.16 1.99 2.57 0.72 2.26

[ Test example 2] For skin blemishes Coverage Transmittance as an index Big Check

(1) As shown in FIG. 2, each test target composition (Examples 1 to 4 and Comparative Examples 1 to 12) was uniformly applied to the same thickness (3.81 μm) on a transparent film paper.

(2) The transmittance of the paper on which the composition to be tested was uniformly coated was measured with a transmittance meter (Haze-gard i, BYK) (here, the lower the transmittance, the higher the coverage against skin defects. ).

As a result, as shown in Table 4, it was confirmed that the test composition containing the acrylate copolymer * isododecane and the cover powder silica according to Examples 1 to 4 had low transmittance and high coverage against skin defects. . On the other hand, it was confirmed that the test target composition not containing the acrylate copolymer * isododecane according to Comparative Examples 1 to 10 exhibited high transmittance, and thus had low coverage against skin defects.

In addition, as a result of measuring the transmittance by varying the content of acrylate copolymer * isododecane in the composition to be tested, Examples 1 to 4 in which the content of acrylate copolymer * isododecane in the composition to be tested is 1.6% by weight or more. According to the test composition, the transmittance was 13.0 or less, and it was confirmed that the coverage for skin defects was high.

In addition, when the weight ratio of the acrylate copolymer * isododecane and the cover powder contained in the composition to be tested was 1.60 to 6.00: 26.33 belonging to the range of 1.5 to 7.0: 1.0 to 30.0, which is a weight ratio defined and defined in the present invention, the transmittance is 10.1. It was found to be ~12.6, and it was confirmed that the coverage for skin defects was high. In particular, the composition to be tested according to Example 2, specifically, the composition to be tested in which the weight ratio of the copolymer* isododecane and the cover powder is 1.60:26.33 while containing 1.60% by weight of acrylate copolymer*isododecane. It was confirmed that the transmittance was 10.1, indicating the highest coverage for skin defects.

Example One Example 2 Example 3 Example 4 Comparative example One Comparative example 2 Comparative example 3 Comparative example 4 Transmittance 12.4 10.1 12.6 10.4 16.8 15.8 15.2 16.8 Comparative example 5 Comparative example 6 Comparative example 7 Comparative example 8 Comparative example 9 Comparative example 10 Comparative example 11 Comparative example 12 Transmittance 19.7 18.9 15.7 16.4 15.7 18.1 20.4 20.8

As described above, specific parts of the present invention have been described in detail, and for those of ordinary skill in the art, it is obvious that these specific techniques are only preferred embodiments, and the scope of the present invention is not limited thereby. something to do. Therefore, it will be said that the practical scope of the present invention is defined by the appended claims and their equivalents.

Claims (12)

A water-in-oil makeup cosmetic composition containing an acrylate-based copolymer and a cover powder as active ingredients,
The rate of change of the L value for the skin coverage of the composition is 0 to 0.40,
Water-in-oil type makeup cosmetic composition, characterized in that the transmittance of the composition for skin coverage is 0 to 13.00. The water-in-oil type makeup cosmetic composition of claim 1, wherein the rate of change of the L value, which is an index of coverage for skin defects, is calculated by Equation 1 below.
[Equation 1]
L value change rate = dL x 100/(L ₀ value)
(here,
L ₀ is an L value representing the color and contrast obtained by applying the composition to be tested to a paper having a white section and a black section in a uniform thickness, and then measuring the black section with a colorimeter,
L ₁ is an L value representing the color and contrast obtained by applying the composition to be tested to a paper having a white section and a black section to a uniform thickness, and then measuring the white section with a colorimeter,
dL is the difference between the L ₁ value and the L ₀ value.) The water-in-oil type makeup cosmetic composition according to claim 1, wherein the transmittance of the skin covering power is measured using a transmittance meter after uniformly applying the composition to be tested with the same thickness on a transparent film paper. The water-in-oil type makeup cosmetic composition of claim 1, wherein the acrylate-based copolymer and the cover powder have a weight ratio of 1.5 to 7.0: 1.0 to 30.0. The water-in-oil type makeup cosmetic composition according to claim 1, wherein the acrylate-based copolymer is an acrylate copolymer*isododecane. The water-in-oil type makeup cosmetic composition according to claim 1, wherein the acrylate-based copolymer is dispersed in isododecane to have a spherical agglomerated shape. The method of claim 1, wherein the cover powder is zinc oxide, fine particle titanium dioxide, titanium dioxide, zinc oxide, talc, kaolin, silica, Talc, sericite (Sericite), calcium carbonate (Calcium Carbonate) and magnesium carbonate (Magnesium Carbonate) characterized in that at least one selected from the group consisting of, water-in-oil type makeup cosmetic composition. The water-in-oil type makeup cosmetic composition of claim 1, wherein the composition further contains at least one selected from the group consisting of surfactants and oils. The method of claim 8, wherein the surfactant is lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone and lauryl PEG-9 polydimethylsiloxyethyl dimethicone. (Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone), characterized in that at least one selected from the group consisting of, water-in-oil type makeup cosmetic composition. The water-in-oil type makeup cosmetic composition of claim 8, wherein the oil is at least one selected from the group consisting of cyclopentasiloxane * cyclohexasiloxane and methyl trimethicone. The water-in-oil type makeup cosmetic composition of claim 1, wherein the content of the acrylate-based copolymer is 1.5 to 7.0% by weight based on the total weight of the composition. The water-in-oil type makeup cosmetic composition of claim 1, wherein the content of the cover powder is 1.0 to 30.0% by weight based on the total weight of the composition.

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