KR102321534B1 - Cosmetic composition of water-in-silicone formulation for lips - Google Patents

Abstract

It relates to a cosmetic composition for lips comprising a silicone elastomer, a volatile silicone oil, and a water-in-silicone (W/S) emulsifier. The cosmetic composition according to an aspect does not contain the film forming agent that has been essentially used in the conventional cosmetic composition for lips, but has a low content of the silicone elastomer that has been included in the conventional high content and includes a volatile low molecular weight silicone oil in the composition. It can be usefully used as a cosmetic composition for lips because it has a high moisture content while maintaining a soft and matte feeling of velvet, which is an advantage, and has an improved moisturizing effect.

Description

Cosmetic composition of water-in-silicone formulation for lips

It relates to a cosmetic composition for lips comprising a silicone elastomer, a volatile silicone oil, and a water-in-silicone (W/S) emulsifier.

As a cosmetic for lips, the matte-type formulation has the advantage of being able to develop natural colors without glossiness, but there is a limit to vivid and bright color expression, and the matte formulation has the disadvantage of easily drying the lips. In particular, in recent years in Korea, lip products that have a high color development ability, have a moisturizing feeling, and show a unique feeling of use are preferred. Therefore, there is a demand for the development of a lip composition that provides a moisturizing feeling while maintaining a matte-type formulation, and various studies are being made based on the market demand.

Accordingly, the present inventors have developed a cosmetic composition for lips that can have a high moisture content while excluding a film forming agent from a conventional silicone heavy-water lip cosmetic, and lowering the silicone elastomer content, in order to overcome the problems of the prior art.

One aspect is to provide a cosmetic composition for lips comprising a silicone elastomer, a volatile silicone oil, and a water-in-silicone (W/S) emulsifier.

One aspect provides a cosmetic composition for lips comprising a silicone elastomer, a volatile silicone oil, and a silicone heavy water type (W/S) emulsifier.

The cosmetic composition for lips may further include at least one selected from the group consisting of oils, polyols, and pigments.

The cosmetic composition for lips may be prepared in a silicone heavy water type (W/S) formulation. The cosmetic composition for lips prepared in the W/S formulation contains a silicone elastomer, a silicone heavy-water emulsifier and a volatile silicone oil, and can provide a natural color development without gloss and a moisturizing lasting power of 8 hours or more.

When the silicone elastomer is included in the cosmetic composition for lips, when applied to the lips, it enables a soft silky feeling and a moist feeling, and serves to impart a low matte gloss. The silicone elastomer may be in the form of a gel, paste or powder, for example, in the form of a gel in which the silicone elastomer is dispersed in a volatile or non-volatile silicone oil. All silicone elastomers known in the art may be used as the silicone elastomer, for example, dimethicone, dimethicone crosspolymer, vinyl dimethicone crosspolymer, dimethicone/vinyl dimethicone crosspolymer, dimethicone crosspolymer-3, Or it may be one selected from a combination thereof.

In the conventional silicone heavy water lip cosmetic composition, there was a limitation in the moisture content contained by using 40.0 wt% or more of silicone elastomer, but one aspect of the cosmetic composition for lips includes the above range in a smaller range than conventional products, so that the same stickiness as existing products Provided is a matte type cosmetic composition for lips that has a small and soft finish but has a high moisture content.

The cosmetic composition may include, for example, 1 to 40% by weight, 5 to 35% by weight, 7 to 30% by weight, 10 to 25% by weight, or 15 to 20% by weight of the silicone elastomer relative to the total weight of the cosmetic composition. have. If the content of the silicone elastomer is higher than the above range, the lip cramping phenomenon becomes severe, the volatile oil does not volatilize quickly, so that the makeup comes off from the lips, and the moisture content is limited and the moisturizing power may be reduced.

The cosmetic composition may contain volatile silicone oil in an amount of 1 to 20% by weight, 5 to 15% by weight, 5 to 17% by weight, or 10±1% by weight relative to the total weight of the cosmetic composition. The volatile silicone oil may be included in the above range in order to provide excellent drying speed and adhesion to the lip skin without a film forming agent in terms of a suitable degree of volatility. The volatile silicone oil may be in the form of a gel in which the silicone elastomer is dispersed in the silicone oil. In the present specification, the "volatile silicone oil" may include, without limitation, a silicone oil used in cosmetics having volatility. For example, disiloxane, cyclopentasiloxane, hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, tetradecamethylhexasiloxane, hexadecamethylheptasiloxane, dodecamethylpentasiloxane, hexamethylcyclotrisiloxane, dode It may be at least one selected from the group consisting of carmethylcyclohexasiloxane, methyl trimethicone, and phenyl trimethicone.

The cosmetic composition may include a W/S emulsifier in an amount of 0.1 to 15% by weight, 1 to 15% by weight, 3 to 10% by weight, or 9±1% by weight relative to the total weight of the cosmetic composition. The W/S emulsifier may be any emulsifier known in the art, for example, polyether-modified silicone or polyglycerin-modified silicone, such as PEG-3 dimethicone, PEG-10 dimethicone, PEG-9 methylether. Dimethicone, PEG-9 Polydimethylsiloxyethyl Dimethicone, Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone, Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, Lauryl Polyglyceryl-3 Polydimethylsilox Cyethyl dimethicone, disteardimonium hectorite, or a combination thereof may be used.

The cosmetic composition may further include a polyol, and the polyol may provide a feeling of adhesion to the skin of the lips and a feeling of moisture. The polyol may be included in an amount of 10-60%, 20-50%, or 30-50% based on the total weight of the cosmetic composition. The polyol is, for example, ethylene glycol, pentaerythritol, trimethylolpropane, propylene glycol, 1,3-propanediol, 1,3-butylene glycol, isoprene glycol, pentylene glycol, hexylene glycol, glycerol (glycerin), polyglycerin-3, and mixtures thereof.

The cosmetic composition may further include an oil, and the oil may include a non-volatile oil or a volatile oil. Specifically, the volatile oil may be a volatile silicone oil, a volatile hydrocarbon-based oil, a volatile ester-based oil, or a combination thereof, and may preferably include a volatile hydrocarbon-based oil. Also herein, the term “non-volatile oil” may refer to an oil that remains at room temperature and atmospheric pressure for at least several hours. Specifically, the non-volatile oil may include a non-volatile silicone oil, a non-volatile hydrocarbon-based oil, or a mixture thereof.

The cosmetic composition for lips may not include a film forming agent. Existing silicone-in-water lip makeup cosmetics use a high content of elastomer and a film former to have a matte type formulation, but the bleed-out is severe and the drying rate is slow. It has a soft finish, but it can have a high degree of moisture and spreadability by greatly improving the slow drying speed and bleed-off, which are the disadvantages of existing products.

The cosmetic composition for lips may further include a pigment and/or pigment, for example, 0.01 to 1% by weight, or 0.1 to 1% by weight relative to the total weight of the cosmetic composition. As the pigment or pigment, any one known in the art may be used, and the content of the dye or pigment may be arbitrarily modified by those skilled in the art according to the component used and the desired color intensity. The pigment may further include an oily pigment, an aqueous pigment, or a combination thereof. Specifically, the pigment is Yellow No. 203, Yellow No. 4, Yellow No. 5, Yellow No. 201, Yellow No. 204, Red No. 103, Red No. 201, Red No. 202, Red No. 218, Red No. 220, Red No. 223, Red No. 226, Red No. 227, Blue No. 1, Blue No. 2 may include an organic pigment of barium or aluminum lake, such as a pigment for coloring, such as a pearl pigment.

The cosmetic composition for lips may be used as, for example, lipstick, lip gloss, lip balm, lip tint, lip palette and lip liner.

The cosmetic composition includes a preservative, a stabilizer, a surfactant, a thickener, a solubilizer, a moisturizer, an emollient, an ultraviolet absorber, a preservative, a disinfectant, an emulsifier, an antioxidant, a pH adjuster, an organic and inorganic pigment, a fragrance, a cooling agent or a limiting agent, etc. It may further include additives commonly used in the art. The blending amount of the additional ingredients such as the preservative can be easily selected by those skilled in the art within the range that does not impair the purpose and effect of the present invention, and the blending amount may be 0.001 to 40% by weight based on the total weight of the composition.

The cosmetic composition according to an aspect does not contain the film forming agent that has been essentially used in the conventional cosmetic composition for lips, but has a low content of the silicone elastomer that has been included in the conventional high content and includes a volatile low molecular weight silicone oil in the composition. It can be usefully used as a cosmetic composition for lips because it has a high moisture content while maintaining a soft and matte feeling of velvet, which is an advantage, and has an improved moisturizing effect.

1 shows the results of checking whether colored sand remains over time after spraying the colored sand after application in order to evaluate the drying speed of the compositions of Example 1 and Comparative Example 1 (FIG. 1A) and quantifying and graphing the results (FIG. 1B) is a diagram showing
2 is a view showing the results of checking the skin moisture level over time after the composition of Example 1 and Comparative Example 1 was applied.
3 is a view showing the results of confirming the glossiness before and after application of the composition of Example 1 and Comparative Example 1.

Hereinafter, the present invention will be described in more detail through examples. However, these examples are for illustrative purposes of the present invention, and the scope of the present invention is not limited to these examples.

Examples and Comparative Examples 1 to 3 Preparation of compositions

As shown in Table 1 below, a matt-type lip cosmetic composition was prepared.

ingredient Comparative Example 1 Example 1 Comparative Example 2 Comparative Example 3 disiloxane - 15 30 - dimethicone 15.0 10 10 10 Dimethicone/Vinyl Dimethicone Crosspolymer 40.0 10 10 10 oil pigment 4.0 4.0 4.0 4.0 PEG-10 Dimethicone 2.0 2.0 2.0 2.0 Cetyl PEG/PPG 10/1 Dimethicone 3.0 3.0 3.0 3.0 Isododecane/ Disteadimonium Hectorite
(Isododecane/
Disteadimonium Hectorite) 4.0 4.0 4.0 4.0 antiseptic appropriate amount appropriate amount appropriate amount appropriate amount glycerine 3.0 3.0 3.0 3.0 Magnesium sulfate 0.8 0.8 0.8 0.8 water pigment 0.5 0.5 0.5 0.5 Purified water to 100 to 100 to 100 to 100

Comparative Example 1 was prepared by mixing each raw material in a beaker according to the components and contents of Table 1, and then uniformly mixing for 10 minutes at 500 rpm using a disper at room temperature. Then, in Example 1 and Comparative Examples 2 and 3, each raw material was measured in a beaker according to the components and contents of Table 1, and then uniformly mixed at room temperature using a Disper at 500 rpm for 10 minutes. After mixing the aqueous phase and the oil phase, using a homo mixer, the mixture was uniformly mixed at 6000 rpm for 5 minutes, and bubbles were removed to prepare a cosmetic composition.

Experimental Example 1. Sensory evaluation of cosmetic composition for lips

Sensory evaluation of the cosmetic composition for lips prepared according to the manufacturing method described above was performed. The cosmetic compositions according to Example 1, Comparative Example 1, and Example 3 were subjected to blind testing on 10 professional female panelists aged 20 to 35 years without prior notice. Afterwards, the overall feeling of use of moisture, matteness, and smearing was evaluated regarding the feeling of use when applied, and the results are shown in Table 2 below.

Each indicator was checked out of a 5-point scale, and the average of the evaluation scores of 10 people was confirmed as follows.

formulation moisture matte Buried Comparative Example 1 ○○○○ ●●●○○ ●●●●○ Example 1 ●●●○○ ●●●○○ ●●○○○

As a result shown in Table 2 above, as a conventional cosmetic composition for lips, the composition of Comparative Example 1 having a significantly high silicone elastomer content showed a matte but little moisture feeling when the composition was applied, and the degree of smearing of the lips after application was remarkable. confirmed that. On the other hand, in the case of Example 1, even if the silicone elastomer was not included in a high content, it was confirmed that the matte and moisture feeling were excellent. In addition, it was confirmed that the composition of Example 1 hardly bleeds after application.

In addition, as a result of conducting an experiment to evaluate the feeling of use for the composition of Comparative Example 3, it was confirmed that it was not suitable as a matte type cosmetic product for lips because it did not appear matte in terms of use reduction because it did not contain volatile oil.

Overall, it was confirmed that the composition of Example 1 was matte and excellent in moisture even without containing a conventional high content silicone elastomer.

Experimental Example 2. Confirmation of drying rate of cosmetic composition for lips

An experiment was performed to confirm the drying rate of the compositions of Comparative Example 1 and Example 1. After each composition was applied to the artificial leather, the speed of flying of the volatile solvent in the composition was measured by spraying colored sand, and the result of visually confirming this is shown in FIG. 1A. (Color pixels of the entire product + color pixels of sand) The results of how much sand occupies compared to the total color in % are shown in FIG. 1B.

This experiment is an experiment that can confirm that the volatile solvent involved in adhesion is volatilized at a fast rate when the color pixel of the sand is reduced within a short time. It was confirmed that the number of colored sand attached to the surface was clearly large, and thus it was difficult to utilize it as a matte composition. On the other hand, it was confirmed that the composition of Example 1 had less colored sand attached to it even after 30 seconds of spraying the colored sand compared to Comparative Example 1, and almost no colored sand remained after 1 minute of application.

Experimental Example 3. Confirmation of skin moisture level of cosmetic composition for lips

The skin moisture level of the cosmetic composition for lips prepared according to Preparation Example was evaluated. The moisturizing power of the product was measured using the skin moisture measurement method for 5 men and women aged 20 to 35 years. Specifically, it is as follows.

As for the test method, after washing the test site 2 cm × 2 cm inside the forearm and waiting in a constant temperature and humidity room (22±2℃, 40-60% RH) for 10 minutes, the moisture content of the skin was measured at the time of no application of the test site. 8 μl of the composition of Example 1 and Comparative Example 1 was applied and absorbed, and the skin moisture level was measured three times immediately after product application, 0.5 hours, 2 hours, 4 hours, and 8 hours, respectively. After calculating the change rate of the skin moisture level using the average of the three measurements, it was evaluated by comparing it with the value before use. A Corneometer (CK electronic, Germany) was used as a measuring device, and the measurement results are shown in FIG. 2 .

As confirmed in FIG. 2 , it was confirmed that the moisture level of the skin in the case of no application was maintained at 25 A.U even after time passed. It was confirmed that the increase was confirmed, but when 8 hours had elapsed, it was confirmed that the skin moisture level similar to that of the case without application finally appeared. However, when the composition of Example 1 was applied, it was confirmed that the skin moisture content was significantly increased immediately after application, and it was significantly increased to 38.0 AU after 0.5 hours of application, which was 28.5 AU even after 8 hours of application. The same level of skin moisture as immediately after appeared, confirming that the Example 1 composition continued to moisturize for 8 hours with increased skin moisture. Therefore, it was confirmed that the cosmetic composition for lips of Example 1 can exhibit excellent moisturizing effect.

Experimental Example 4. Confirmation of reduction in glossiness of cosmetic composition for lips

As a conventional cosmetic composition for lips, gloss was measured for the composition of Comparative Example 1 and Example 1 having a significantly high silicone elastomer content. Specifically, it is as follows. Example 1 and Comparative Example 1 were respectively applied to artificial leather of the same area of 4x8 cm, and glossiness before and after application was measured (measuring device: micro-TRI-gloss, BYK Gardner, GERMANY). Glossiness was measured three times before and after application of the product, and the final glossiness confirmation result is shown in FIG. 3 .

As confirmed in FIG. 3, similar to the composition of Comparative Example 1 having a significantly high silicone elastomer content as a conventional cosmetic composition for lips, the composition of Example 1 showed a similar decrease in glossiness before and after application even without a high silicone elastomer content. confirmed that. Accordingly, it was confirmed that the composition according to Example 1 significantly reduced gloss even without including the silicone elastomer at a high content, so that a matte texture may appear when applied to the lips.

Experimental Example 4. Confirmation of formulation stability of cosmetic composition for lips

Formulation stability of the compositions of Example 1 and Comparative Example 2 prepared according to the above Preparation Example was confirmed under different temperature conditions. Specifically, after filling 10 g of the composition of Example 1 and Comparative Example 2 in a 20ml PET vial, it was left in a thermostat of 5 ℃, 37 ℃, 45 ℃, and -20-45 ℃ cycle conditions for 4 weeks to check the stability, This is shown in Table 3.

25℃ 37℃ 45℃ Cycle
(-20℃~45℃) Example 1 stability stability stability stability Comparative Example 2 stability stability solvent build-up solvent build-up

As confirmed in Table 3, in the composition of Example 1, it was confirmed that formulation separation did not appear for 4 weeks under all conditions, but in the composition of Comparative Example 2 containing an excessive amount of volatile oil, the formulation was separated from 37 ° C. It was confirmed that the phenomenon appeared. Therefore, overall, it was confirmed that the composition of Example 1 showed remarkable formulation stability even at high temperatures.

Claims (8)

silicone elastomers;
disiloxane;
oil pigment; and
A cosmetic composition for lips comprising a water-type (W/S) emulsifier in silicone,
The cosmetic composition for lips contains 10 to 25% by weight of the silicone elastomer and 5 to 15% by weight of disiloxane relative to the total weight of the total cosmetic composition,
It contains 3 to 10% by weight of a water type (W / S) emulsifier in the silicone,
A cosmetic composition for lips that does not contain a film forming agent. The cosmetic composition for lips according to claim 1, further comprising at least one selected from the group consisting of oils, polyols, and water pigments. The cosmetic according to claim 1, wherein the silicone elastomer is selected from dimethicone, dimethicone crosspolymer, vinyl dimethicone crosspolymer, dimethicone/vinyl dimethicone crosspolymer, dimethicone crosspolymer-3, or a combination thereof. composition. delete The method according to claim 1, wherein the W/S emulsifier is PEG-3 dimethicone, PEG-10 dimethicone, PEG-9 methylether dimethicone, PEG-9 polydimethylsiloxyethyl dimethicone, lauryl PEG-9 polydimethylsilox selected from cyethyl dimethicone, polyglyceryl-3 polydimethylsiloxyethyl dimethicone, lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone, isododecane/disteardimonium hectorite, or combinations thereof A cosmetic composition for the lips. The method according to claim 2, wherein the polyol is ethylene glycol, pentaerythritol, trimethylolpropane, propylene glycol, 1,3-propanediol, 1,3-butylene glycol, isoprene glycol, pentylene glycol, hexylene glycol, glycerin (glycerol ), polyglycerin-3, and a cosmetic composition for lips selected from mixtures thereof. delete delete

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