KR20100042121A - Cosmetic composition for lip - Google Patents

Abstract

PURPOSE: A lip cosmetic composition is provided to ensure excellent color persistence and application characteristic. CONSTITUTION: A lip cosmetic composition contains: 5-20 weight% of wav containing microcrystalline wax; 0.5-15 weight% of organic oil tackifier; 30-70 weight% of oil such as ester oil or hydrocarbon oil; and 1-30 weight% of pigment. The wax is microcrystalline wax, ozokerite, beeswax, candelilla wax, or ceresine. The organic oil tackifier is glyceryl based tackifier having ester group. The pigment contains hydroxyl apatite. The lip cosmetic composition contains moisturizer, anti-oxidative agent, UV-absorbing agent, or perfume.

Description

Cosmetic composition for lips {Cosmetic Composition for Lip}

The present invention relates to a cosmetic composition for lips excellent in color persistence.

In the case of a general lip cosmetic composition, a pigment is dispersed in an oily base and mixed with wax-like materials. However, such a cosmetic composition for lips is well buried in a cup, clothing, etc., there is a problem that is erased dirty when trying to erase the makeup. In order to solve these problems, various researches are being conducted.

For example, in order to enhance the color sustainability of the cosmetic composition for lips, by using a solid component such as beeswax or candelillanab and an oily base such as lanolin or lanolin derivatives, by blending a volatile oil agent in the cosmetic composition for lips After the coating, the oil is volatilized so that only the colorant and wax components remain on the coated surface, or a film forming agent such as a polymer is blended in the volatile oil, and the polymer is coated and dried to form a polymer film on the surface of the skin. This is known. However, despite these various attempts and studies, the situation that does not improve greatly in use.

In addition, there is a known content of blending silicone resin for film formation, but this method has a disadvantage in that the moisture retention and color persistence are weak. In addition, there is an example in which a large amount of plate-like powders are used to minimize smearing, but the feeling is heavy and the lips become very dry over time, causing a problem of exfoliation.

It is an object of one embodiment of the present invention to provide a lip cosmetic composition with ease of smearing during use.

Another object of an embodiment of the present invention is to provide a lip cosmetic composition excellent in color persistence and spreadability.

Lip cosmetic composition according to the invention, (a) 5 to 20% by weight of a wax containing microcrystalline wax; (b) 0.5-15% by weight of organic oil thickener; (c) 30 to 70% by weight of one or more oils selected from the group consisting of ester oils and hydrocarbon oils; And (d) characterized in that it comprises 1 to 30% by weight of the pigment.

The lip cosmetic composition according to the present invention has an advantage of being excellent in color persistence and spreadability while being less smeared in use.

Lip cosmetic composition according to an embodiment of the present invention, based on the total weight of the composition,

(a) 5 to 20% by weight of a wax comprising microcrystalline wax;

(b) 0.5-15% by weight of organic oil thickener;

(c) 30 to 70% by weight of one or more oils selected from the group consisting of ester oils and hydrocarbon oils; And

(d) characterized in that it comprises 1 to 30% by weight of pigment.

In one embodiment, the wax component of (a), in addition to the microcrystalline wax, may further comprise at least one wax component selected from the group consisting of ozokerite, beeswax, candelillanab, ceresin and carnauba wax. Can be. In another embodiment, the wax component of (a) may be 5 to 20% by weight, more specifically 6 to 15% by weight, based on the total weight of the composition. If the content of the wax component is less than 5% by weight, when the product is manufactured in the form of a lipstick, sticks may break or break. On the contrary, when the content of the wax is more than 20% by weight, the hardness is increased, and there is a fear that the spreadability is reduced.

Since the microcrystalline wax has good skin adhesion and elasticity and high melting point, for example, the microcrystalline wax can remarkably alleviate phenomena when used as a lipstick formulation. However, if the content of the microcrystalline wax is too high, the spreadability may be impaired. Specifically, when the sole content of the microcrystalline wax exceeds 8% by weight based on the total weight of the composition, the spreadability may be reduced. Therefore, the content of the wax component of (a) is set in consideration of the skin adhesion and the relaxation of the phenomenon.

"Microcrystalline wax" used in the present invention has a slight crystallinity and strong hardness, and may be referred to as microwax for short. In addition, the microcrystalline wax is pale yellow, and is obtained by refining and separating the remaining asphalt (Asphalt) after refining the crude oil. Paraffin wax is linear Alkyl Hydrocarbon because of its molecular structure, whereas microcrystalline wax contains a lot of Branched Alkyl Hydrocarbon. Therefore, compared with paraffin wax, it melts at a high temperature and has a high hardness.

In one embodiment, the organic oil thickener of (b) may be 0.5 to 15% by weight, specifically 1 to 5% by weight based on the total weight of the composition. When the content of the organic oil thickener is less than 0.5% by weight, the effect of the addition of the thickener is insignificant, and when it is 15% by weight or more, there is a concern that the hardness is too high because it acts like a wax.

In one embodiment, the organic oil thickener may be a glyceryl oil-soluble thickener having an ester group, specifically, may be a polymer represented by the formula (1).

Wherein R is a branched alkyl group of C ₁₈ to C ₂₂ .

Generally, in lip cosmetic compositions such as lipsticks, the oil component occupies the highest content and is the most important component in terms of color persistence. More specifically, the pigment component contained in the lipstick is dispersed in the oil and flows or moves along the oil. In other words, controlling the mobility (flow) of the oil is an important factor in determining the degree of color persistence.

Therefore, in the cosmetic composition for lips according to the present invention, the selection of the oil thickener, the compatibility with the oil blended in a large amount will act as an important factor. In view of this, the glyceryl organic oil thickener exhibits excellent gel strength and has excellent compatibility with ester oils and the like. Specifically, when the glyceryl organic oil thickener is dissolved in the lip cosmetic composition and the temperature is lowered, the glyceryl organic oil thickener has a property of gelling while the long chains of linear structure are aligned in a layered structure. At this time, the pigments uniformly dispersed in the oil is also arranged in the structure to improve the color persistence.

As used herein, the term "organic oil thickener" means an organic thickener that increases the viscosity of an oil component. Organic thickener is a generic term for a substance that is dissolved in water or an organic solvent to form a high viscosity mucus. For example, organic thickeners include natural polymers (carrageenan, alginic acid, pectin, starch), semisynthetic polymers (carboxymethyl cellulose), synthetic polymers (carboxyvinyl polymer, polyvinyl pyrrolidone), and the like. Organic thickeners are present.

The oil component of (c) is at least one oil selected from the group consisting of ester oils and hydrocarbon oils. In one embodiment, the oil component is diisostearyl maleate, liquid paraffin, phytosteryl isostearyl dimer dilinoleate, polyglyceryl triisostearate, triglycerides, octadodecanol, dipentaeryth It may be one or more selected from the group consisting of light patty acid ester, phytosteryl, isostearyl, cetyl, stearyl and behenyl dimer dilinoleate. In another embodiment, the content of the oil component may be 30 to 70% by weight, more specifically 40 to 65% by weight based on the total weight of the composition. When the content of the oil component is less than 30% by weight, the feeling of use can be felt too stiff, and when it exceeds 70% by weight, the applicability is poor due to the slippery feeling.

The content of the pigment (d) is 1 to 30% by weight based on the total weight of the composition. In one embodiment, the pigment may comprise hydroxy apatite, and more specifically, may be added in the form of hydroxy apatite powder. The hydroxyapatite is a generic term for calcium phosphate compounds, and is characterized by high biocompatibility and higher skin safety than other extender pigments.

In general, the powder is known to help sustainability by oil absorption and close contact with the lips. In particular, the hydroxyapatite powder used in the present invention is excellent in selective adsorption of fat peroxide and selective adsorption of triglycerides, and flaky protrusions are formed on the surface of the plate to not only enhance the feeling of use but also when applying a dispersion formulation. It will increase the dispersibility of the pigment.

In addition, the pigment of (d), in addition to the hydroxy apatite, may be used in combination with various kinds of pigments. For example, white mica, synthetic mica, good luck, kaolin, titanium dioxide, titanium oxide coated mica, aluminum powder, iron sulfate, black iron oxide, barium sulfate, or the like, or yellow 203, yellow 4, yellow 5 , Pigments for coloring such as yellow 201, yellow 204, and red 103 can be used in combination.

The cosmetic composition for lips according to the present invention may be blended with a moisturizer, an antioxidant, an ultraviolet absorber, a perfume, and the like within the range not impairing the effects of the present invention, depending on the purpose, in addition to the above components.

The above-mentioned components may be prepared in a cosmetic composition for lip through a process such as heating, mixing and stirring in a conventional manufacturing method. This manufacturing process is obvious in view of the technical level of those skilled in the art.

Hereinafter, the present invention will be described in more detail with reference to the following examples. However, the following examples and the like are intended to illustrate the present invention, but the scope of the present invention is not limited thereto.

EXAMPLE 1 AND COMPARATIVE EXAMPLES 1-4

To combine the components of Table 1 to prepare a cosmetic composition for lips. First, the raw materials of 1 to 20 in Table 1 were weighed and heated to 90 ° C., and then stirred with a homogenizer to prepare a mixture. Table 1 is based on the weight percent. The prepared mixture was degassed, flavored, and cooled to prepare a cosmetic composition for lips, that is, a lipstick.

ingredient Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 1. Beeswax 2.1 2.1 2.1 2.1 2.1 2. candelilla wax 4.0 4.0 4.0 4.0 4.0 3. Ozokerite 2.0 2.0 2.0 7.0 7.0 4. Microcrystalline Wax 5.0 - 5.0 - - 5. Glyceryl Bihenate 3.0 3.0 - - - 6. Hydrogenated Vegetable Oils 6.0 6.0 9.0 9.0 9.0 7. Shea Butter 2.0 2.0 2.0 2.0 2.0 8. Octyldodecanol 10.0 10.0 10.0 10.0 10.0 9. Polyglyceryl Triisostearate 10.0 10.0 10.0 10.0 10.0 10. Diisostearyl maleate To 100 To 100 To 100 To 100 To 100 11. Polyisobutene 5.0 5.0 5.0 5.0 5.0 12.penta erythril patty acid ester 10.0 10.0 10.0 10.0 10.0 13. Tocopherol Acetate 2.0 2.0 2.0 2.0 2.0 14. Preservative 0.04 0.04 0.04 0.04 0.04 15. Hydroxy Apatite 3.0 - - 3.0 - 16. Mica 1.0 4.0 4.0 1.0 4.0 17. Silica 2.0 2.0 2.0 2.0 2.0 18. Pigment 15.0 15.0 15.0 15.0 15.0 19.Titanated Mica 3.0 3.0 3.0 3.0 3.0 20. Spices 0.3 0.3 0.3 0.3 0.3

 Experimental Example 1 Hardness Measurement

Hardness of the lipstick prepared in Example 1 and Comparative Examples 1 to 4 was compared and evaluated. Each sample was stored in a thermostat at 30 ° C. and 40 ° C. for 18 hours, and then hardness was measured using a rheometer (Rheometer CR-200D). When measuring hardness, the speed was set at 20 mm / min and the penetration depth of the applicator was 20 mm. The hardness measurement results are shown in Table 2.

Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 30 ℃ hardness 89 90 90 91 86 45 ℃ hardness 43 43 42 44 41

Referring to Table 2, when comparing the lipstick of Example 1 according to the present invention and the lipstick of Comparative Examples 1 to 4 it can be confirmed that the difference in hardness is not large. That is, when measuring the persistence or spreadability of the lipstick, hardness values in a similar range are shown to reduce the difference in hardness.

Experimental Example 2 Color Persistence Evaluation

Color persistence was evaluated for the lipsticks prepared in Example 1 and Comparative Examples 1 to 4. Although the lip application state of the lipstick can be visually observed and evaluated, device evaluation was conducted to derive more objective values. The measurement method for color persistence is as follows.

First, each lipstick sample was evenly applied to the artificial leather of a certain area reciprocating eight times. The initial color value was measured using a color difference meter, and the color value after the tissue-off three times was measured again. The color difference change value ΔE relative to the initial coating state was calculated through Equation 1 below. The measured results are shown in FIG. 1, and the smaller the value of ΔE, the better the color persistence.

ΔE = (ΔL ² + Δa ² + Δb ² ) ^1/2

In Equation 1, ΔL denotes the difference between the brightness (brightness) of two samples as a result of the color difference measurement, and a denotes the degree of green and redness of the sample in the colorimeter. Is the difference between the a values of the two samples. In addition, b is a value indicating the yellow and blue degree of the sample in the color system, Δb is the difference between the b value of the two samples.

Referring to FIG. 1, it can be seen that the lipstick (Example 1) prepared according to the present invention has the smallest ΔE value immediately after application and three times after tissue off. Therefore, it can be confirmed that the color persistence of the cosmetic composition for lips according to the present invention is very excellent.

Experimental Example 3 Measurement of Feeling

Basic physical properties of the lipstick prepared in Example 1 and Comparative Examples 1 to 4 were evaluated. Each lipstick sample was applied to the lips of three women at least three times and then evaluated for preference by item of application, color persistence and moistness. Evaluation results are shown in Table 3 below, and the individual items were evaluated with 9 out of 9 points.

Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Application 6.2 6.4 5.4 6.4 6.4 Color persistence 7.6 6.2 6.6 6.4 4.2 Moist 6.4 6.4 5.6 5.4 5.8

Referring to Table 3, the lipstick (Example 1) prepared according to the present invention was found to be the best in the color persistence item, it can be seen that the preference is similar or high in the other two items.

1 is a graph showing the color persistence measurement results for the lip cosmetic compositions.

Claims (7)

In the cosmetic composition for lips, based on the total weight of the composition, (a) 5-20% by weight of a wax comprising microcrystalline wax; (b) 0.5-15% by weight of organic oil thickener; (c) 30 to 70% by weight of one or more oils selected from the group consisting of ester oils and hydrocarbon oils; And (d) 1 to 30% by weight of the pigment cosmetic composition for lips. The method of claim 1, The wax of (a), in addition to the micro-crystalline wax, the cosmetic composition for lips further comprises at least one selected from the group consisting of ozokerite, beeswax, candelillanab, ceresin and carlaubaap . The method of claim 1, The organic oil thickener of (b) is a glyceryl oil-soluble thickener having an ester group, the cosmetic composition for lips. The method of claim 3, wherein Glyceryl oil-based thickener having the ester group has a structure of the following formula (1): [Formula 1]

Wherein R is a branched alkyl group of C ₁₈ to C ₂₂ . The method of claim 1, The oil of the above (c) is diisostearyl maleate, liquid paraffin, phytosteryl isostearyl dimer dilinoleate, polyglyceryl triisostearate, triglyceride, octane decanol, dipentaeryrite patty Lip cosmetic composition, characterized in that at least one selected from the group consisting of acid ester, phytosteryl, isostearyl, cetyl, stearyl, behenyl dimer dilinoleate. The method of claim 1, The pigment of (d) is a cosmetic composition for lips, characterized in that it comprises hydroxy apatite. 7. The method according to any one of claims 1 to 6, The cosmetic composition for lips, the lip cosmetic composition, characterized in that it further contains one or more selected from the group consisting of a moisturizing agent, antioxidant, ultraviolet absorber and fragrance.

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