KR20190098733A - W/O emulsion cosmetic composition with improved long-lasting and feeling of moisture - Google Patents

Abstract

The present invention relates to a water-in-oil type cosmetic composition comprising at least two film formers, wherein the film formers different from each other are contained in a continuous phase and a dispersed phase, respectively. Particularly, the cosmetic composition of the present invention is superior in sustainability and can provide an excellent sense of moisturization.

Description

W / O emulsion cosmetic composition with improved long-lasting and feeling of moisture}

The present invention relates to a water-in-oil cosmetic composition, and more particularly to a water-in-oil cosmetic composition that can improve the sustainability while relieving dryness.

The need for a sustainable cushion foundation is constantly coming out, and products featuring it are constantly on the market. Due to the formulation characteristics, there have been attempts to further improve the sustainability in the water-in-oil type because the water-in-oil type is superior to the oil-in-water type. In addition, in the case of low viscosity, the application and the feeling of use are excellent, but the sustainability is lower than in the case of high viscosity, and efforts to increase the sustainability in the low viscosity liquid formulations continue. Existing methods mainly have a method of using the oil-soluble film former on the outer surface of the cosmetic composition, but this causes a disadvantage of drying, there is a limit to using a large amount of the oil-soluble coating agent.

The present invention is to provide a water-in-oil cosmetic composition of high durability.

The inventors of the present invention try to solve the problem that the compatibility with other components in the water-in-oil cosmetic composition.

The present invention is to provide a new cosmetic composition that can alleviate the feeling of drying gradually increased with time after application to the skin.

The present invention is to provide a way to solve the drying feeling of the excellent cosmetic composition. That is, to provide a cosmetic composition excellent in durability and improved dry feeling.

The present invention is to provide a water-in-oil cosmetic composition having excellent adhesion.

The present invention relates to a water-in-oil cosmetic composition comprising two or more types of film forming agents, characterized by comprising different film forming agents in the continuous phase and the dispersed phase.

The inventors of the present invention, the cosmetic composition for applying to the skin is to use a large amount of the oil film forming agent to improve the persistence, to recognize the problem that occurs at this time to complete the present invention.

That is, the present invention has been completed in order to reduce the amount of oil film forming agent, to improve skin dryness, and to improve compatibility with other components, and usability.

The inventors of the present invention have for the first time realized that there are differences in achieving the effects of the present invention depending on the type and / or content of the aqueous film former used in the inner phase, and have completed the present invention.

The inventors of the present invention have been able to confirm by designing a specific experiment that the type of oil film forming agent used with the water film forming agent can also play an important role in achieving the object of the present invention.

As used herein, a 'continuous phase' is a continuous phase.

As used herein, a 'dispersed phase' is a phase dispersed in a continuous phase.

The emulsion is dispersed in the form of small droplets with a constant ratio without mixing the continuous phase and the dispersed phase, and forms a dispersion phase in the continuous phase.

Oil-in-water (O / W) emulsions are emulsions in which the continuous phase is water and oil in the disperse phase, and water-in-oil emulsions are emulsions in which the continuous phase is oil and the dispersed phase is water.

The cosmetic composition of the present invention may be water-in-oil type, preferably an emulsion having a continuous oil phase, such as water-in-oil and oil-in-water emulsions.

The cosmetic composition may comprise 0.01 to 20% by weight of the oil film forming agent, preferably 1 to 15% by weight, more preferably 5 to 13% by weight, most preferably 8 to 10% by weight of oily A film former may be included.

The cosmetic composition of the present invention uses a small amount of the oil film forming agent and further includes a film forming agent in the dispersed phase, as described below, so that a small amount of the oil film forming agent can be used. The present invention is to use a small amount of the oil film forming agent to provide a cosmetic composition with less skin dryness, excellent skin adhesion.

As used herein, an 'aqueous' film forming agent may be used to mean both water soluble or water dispersible film forming agents.

As used herein, an 'oil-based' film forming agent may be used to mean both oil-soluble or oil-dispersible film forming agents.

The cosmetic composition may include both an oily film former and an aqueous film former.

The cosmetic composition of the present invention may be a water-in-oil cosmetic composition containing both an oil film forming agent and an aqueous film forming agent.

The cosmetic composition of the present invention may be an oil-in-water type cosmetic composition containing both an oil film forming agent and an aqueous film forming agent.

The cosmetic composition of the present invention may include 20 wt% or less or 10 wt% or less of an oil film forming agent, and may further include an aqueous film forming agent.

The inventors of the present invention, when used together with the oil film forming agent and the water film forming agent, can be expected to have excellent skin adhesion, longevity, feeling, in particular, it was possible to obtain the effect of improving the moisture retention and moisturizing power of the skin, skin dryness.

Furthermore, it was confirmed that more excellent moisturizing power and a feeling of drying improvement can be obtained depending on the type of the aqueous film forming agent and the type of the oil film forming agent.

The oily film former is trimethylsiloxysilicate, acrylate / stearyl acrylate / dimethicone methacrylate copolymer polypropylsilsesquioxane, C30-45 alkyl dimethylsilyl polypropylsilsesquioxane, acrylate It may include one or more selected from the group consisting of / polytrimethylsiloxy methacrylate copolymer, acrylate / dimethicone copolymer, and phenylpropyl dimethylsiloxy silicate, preferably trimethylsiloxysilicate And / or acrylate / stearylacrylate / dimethicone methacrylate copolymers. When the trimethylsiloxy silicate and / or acrylate / stearyl acrylate / dimethicone methacrylate copolymer were used, it was easy to stabilize the dispersed phase, and excellent skin moisturizing property and adhesion, and a flexible film film could be formed. . Preferably trimethylsiloxysilicate can form a strong coating, and acrylate / stearylacrylate / dimethicone methacrylate copolymer can form a flexible coating.

The aqueous coating agent may include one or more selected from the group consisting of sodium polystyrene sulfonate, hydroxypropyl guar, and hydroxyethyl cellulose, preferably hydrolyzed wheat protein / FIV crosspolymer, and And / or sodium polystyrenesulfonate, more preferably sodium polystyrenesulfonate. When the sodium polystyrene sulfonate was used as an aqueous film forming agent, it was easy to stabilize the dispersed phase, and the skin's moisturizing power and adhesion were excellent.

The cosmetic composition is an oil coating agent, 0.01 to 20% by weight, preferably 1 to 18% by weight, more preferably 1 to 15% by weight, even more preferably 1 to 10% by weight, based on the total weight of the cosmetic composition, It may comprise 1 to 8% by weight.

One embodiment of the present invention may comprise an aqueous film forming agent 0.01 to 12% by weight, preferably 1 to 11% by weight, more preferably 10.5% by weight relative to the total weight of the cosmetic composition. If it is less than this content, there will be no effect of a film, and if it is more than this, a usability will become sticky and application property may fall. When having the above content range, it was excellent to maintain the skin moisturizing rate, it was excellent in improving the dry feeling. At the same time, it was advantageous to provide a feeling of formulation stability and a feeling of moisture.

In particular, the oily film forming agent included in the cosmetic composition may be acrylate / stearylacrylate / dimethicone methacrylate copolymer and / or trimethylsiloxysilicate, and the aqueous film forming agent may be sodium polystyrenesulfonate. Especially when achieving the object of the present invention.

The cosmetic composition may have one or more formulations selected from the group consisting of foundation, concealer, makeup base, BB cream, lotion, cream, and wax, and may be preferably provided as a water-in-oil foundation.

The cosmetic composition of the present invention may be included without limitation so long as it can be included in conventional cosmetic compositions that can be included in the formulations listed above.

For example, the cosmetic composition of the present invention may further include an organic / inorganic sunscreen.

The present invention can have an excellent effect especially when applied to a product to be used by storing the cosmetic composition in a sponge. Given the instability of formulations, corrosiveness of sponges, and the like, which are problematic in water-in-oil cosmetic compositions in sponges, the cosmetic compositions of the present invention can be easily stored and provided in a sponge.

The cosmetic composition of the present invention provides excellent skin moisturizing and moisture retention.

A small amount of oil coating agent can be used through the cosmetic composition of the present invention.

The cosmetic composition of the present invention is excellent in the skin tightness, and the makeup breakdown rate is slow due to sebum and the like, and thus the makeup lasting power is excellent.

Cosmetic composition of the present invention can provide excellent feeling of use, skin adhesion.

The cosmetic composition of the present invention is easy to absorb and provide to a sponge.

The present invention can increase the affinity with the skin, further improve the poor persistence when using only an excessive amount of the oil-soluble film alone, and at the same time can improve the dryness, which was a disadvantage, to increase customer satisfaction.

The oil-soluble film can form a film to increase the sustainability, but the feeling of use such as tightness of the skin, dry feeling, and sticky feeling is not good. Can be. In addition, the present invention can provide a cosmetic composition with improved stability.

1 is a graph showing the results of the moisture retention improvement when using the oil film forming agent and the water film forming agent together.
2 is a result of analyzing the degree of collapse by artificial sebum after applying the cosmetic composition of the Examples and Comparative Examples, artificial leather upright and drop artificial sebum flows through the image programming.
Figure 3 shows the evaluation results for the oil bleeding degree and burying in water-in-oil makeup cosmetics. Comparative example 1, 2, 3, and Example 1 are shown in order from left.

Hereinafter, examples and the like will be described in detail to help understand the present invention. However, the embodiments according to the present invention may be modified in various other forms, and the scope of the present invention should not be construed as being limited to the following embodiments. Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art.

Test Example 1 Water-in-oil makeup cosmetic formulation containing a water-soluble and oil-soluble film forming agent

In order to confirm the sustainability and dryness improvement of the oil-in-water cosmetic composition containing a water-soluble and oil-soluble film-forming agent, the formulation was experimented as follows.

Water-in-oil makeup cosmetics were prepared according to the following preparation method according to the ingredients and contents (wt%) shown in Table 1.

<Production method>

1) The oily ingredients were mixed and heated to 80 ° C. and then dispersed.

2) The coloring agent component was mixed and stirred in said 1).

3) The water phase component was slowly warmed up to 80 ° C. in a separate water tank and completely dissolved.

4) The aqueous phase component of 3) was slowly added to the oil phase component of 1) and emulsified using a homomixer.

5) Degassing after completion of emulsification and cooled to 28 degrees (℃).

division Compounding Ingredients (wt%) Comparative Example 1 Comparative Example 2 Comparative Example 3 Example 1 Oily ingredient Cyclopentasiloxane Remaining amount Remaining amount Remaining amount Remaining amount Phenyltrimethicone 3.00 3.00 3.00 3.00 Fiji-10 dimethicone 3.00 3.00 3.00 3.00 Disteadimonium hectorite 0.30 0.30 0.30 0.30 Acrylate / stearyl acrylate / dimethicone methacrylate copolymer 2.00 2.00 2.00 2.00 Acrylate / Polytrimethylsiloxymethacrylate Copolymer - 2.00 - - Spices 0.3 0.3 0.3 0.3 coloring agent Titanium dioxide 10.00 10.00 10.00 10.00 Yellow Iron Oxide, Red Iron Oxide, Black Iron Oxide 2.00 2.00 2.00 2.00 Water component Purified water Remaining amount Remaining amount Remaining amount Remaining amount Sodium chloride 0.50 0.50 0.50 0.50 Hydrolyzed Wheat Protein / FIV Crosspolymer - - 2.00 - Sodium Polystyrene Sulfonate - - - 2.00 antiseptic Quantity Quantity Quantity Quantity

<Moisture measurement>

Moisturizing test of the water-in-oil makeup cosmetic of the said Example and the comparative example was done.

The moisturizing measurement was performed on the actual test subjects, and after 20 minutes of adaptation to a constant temperature room for the purpose of objective moisturizing measurement, the test was started using a corneometer.

The measurement method was measured based on 1 hour and 3 hours before and immediately after application, and the average value was calculated after each measurement three times, and the moisturizing improvement rate (%) was shown as compared with before application.

The results are shown in Table 2 below and in FIG. 1.

On the other hand, as can be seen in Figure 1, Example 2 also showed an excellent moisturizing improvement rate.

Right after 1 hours 3 hours Before application 1.22 -2.02 3.26 Comparative Example 1 30.14 11.89 10.00 Comparative Example 2 36.53 16.28 11.77 Comparative Example 3 43.74 25.51 15.31 Example 1 46.28 27.11 16.19

As shown in the above results, when the water-soluble film-forming agent was mixed together with the water-soluble film-forming agent, the moisture retention improvement rate was measured higher than that when the oil-soluble film-forming agent was used alone, and it was confirmed that the moisture retention was better. .

In addition, as can be seen in Table 2, Comparative Example 3 was used in the same amount of the water-soluble film forming agent, it was confirmed that Example 1 has a more excellent moisturizing improvement rate.

<Persistency test>

Persistence test of the water-in-oil makeup cosmetics of the Examples and Comparative Examples was carried out.

Since human skin has individual differences, artificial leather was used in this experiment for objective persistence testing.

For sustainability evaluation, 0.05 g of each sample was applied to 5 cm × 5 cm artificial leather with the same size and thickness, and dried at 30 ° C. for 2 hours. After that, the artificial leather is placed upright and the artificial sebum is dropped and flowed, and the degree of collapse by the artificial sebum is analyzed through image programming, and the degree of collapse (black part of the artificial leather) is numerically shown in Table 3 and FIG. 2.

The quantification was shown by quantifying the black portion of the artificial family where the cosmetic film was peeled off with ImagePro Plus software.

Comparative Example 1 Comparative Example 2 Comparative Example 3 Example 1 value 4629 2050 2501 2048

As shown in the above results, it was confirmed with the naked eye and numerically that the synthetic sebum is much less collapsed in Comparative Example 3 and Example 1 than in Comparative Example 1.

Therefore, when the water-soluble film-forming agent was mixed with the oil-soluble film-forming agent, it was found that the seizure by the sebum was less and the cosmetic persistence was excellent. Among these, in particular, in the case of Example 1 containing sodium polystyrene sulfonate in the inner phase it was confirmed that the effect is excellent.

Through these results, it was confirmed that the cosmetic persistence may vary depending on the type of the water-soluble film forming agent.

Oil repellency and burying evaluation

The spread of oil and the degree of bleeding of the water-in-oil makeup cosmetics of the Examples and Comparative Examples were evaluated.

In the measuring method, each sample was uniformly pushed to the same thickness (60 μm) on a glass plate, and then dried at 30 ° C. for 1 hour. Subsequently, after dropping the same amount of artificial sebum in the middle portion, the degree of oil bleeding was confirmed after standing for 20 minutes at 30 degrees (℃). Thereafter, the artificial leather was placed on the sebum and rolled 10 times at a constant pressure (200 g weight) to confirm the amount of the sample buried in the artificial leather, and the degree of burial was shown in FIG. 3.

As can be seen in Figure 3, in Comparative Example 1 it was confirmed that the degree of bleeding and staining of the oil is the most severe. Compared with Comparative Example 1, in Comparative Example 3 and Example 1, the oil was less smeared or smeared, and in particular, Example 1 which further contained sodium polystyrenesulfonate in the inner phase of the oil was compared to that of Comparative Examples 1 and 2. There was no bleeding phenomenon, it was confirmed that the least buried. Therefore, the present invention was found to be excellent in makeup persistence because it is not buried or erased due to external activities.

This affects the stability and usability of the formulation depending on the size and charge of the aqueous coating material, and shows different characteristics for each type. Accordingly, it was confirmed that the selection of the type and content of the water-soluble coating agent has an important effect in the water-in-oil type formulation.

[Test Example 2] Water-in-oil makeup cosmetic composition according to the amount of water-soluble coating agent

division Compounding Ingredients (wt%) Comparative Example 4 Example 1 Example 2 Example 3 Oily ingredient Cyclopentasiloxane Remaining amount Remaining amount Remaining amount Remaining amount Phenyltrimethicone 3.00 3.00 3.00 3.00 Fiji-10 dimethicone 3.00 3.00 3.00 3.00 Disteadimonium hectorite 0.30 0.30 0.30 0.30 Acrylate / stearyl acrylate / dimethicone methacrylate copolymer 2.00 2.00 2.00 2.00 Acrylate / Polytrimethylsiloxymethacrylate Copolymer - - - - Spices 0.3 0.3 0.3 0.3 coloring agent Titanium dioxide 10.00 10.00 10.00 10.00 Yellow Iron Oxide, Red Iron Oxide, Black Iron Oxide 2.00 2.00 2.00 2.00 Water component Purified water Remaining amount Remaining amount Remaining amount Remaining amount Sodium chloride 0.50 0.50 0.50 0.50 Sodium Polystyrene Sulfonate 15.00 2.00 5.00 10.00 antiseptic Quantity Quantity Quantity Quantity

The manufacturing method was the same as the manufacturing method described in Test Example 1, and confirmed the sustainability, stability, and usability.

Persistence was evaluated in the same manner as in Test Example 1, and the stability was compared to the room temperature after storage for 2 weeks at 45 ° C (° C). The sensory evaluation was conducted by sensory evaluation, and 20 consumers in their 20s and 40s evaluated the degree of feeling of moisture, and gave a score of 0-5 and averaged the scores.

1) Stability Evaluation Criteria: O: Stability, △: Normal, X: Separation

2) Moisture rating criteria: 1: Very poor, 2: Bad, 3: Normal, 4: Good, 5: Very good

Comparative Example 4 Example 1 Example 2 Example 3 vitality 2000 2048 2013 2001 stability △ O O O Moisture 4.0 4.9 4.6 4.6

As shown in the above results, when the content of the aqueous film-forming agent is increased, the moisture feeling was low, and the stability was also poor. In the case of Example, even the content of 10% was excellent in stability.

Test Example 3 Water-in-oil type makeup cosmetic formulations containing different types of oil-soluble coatings

Trimethylsiloxysilicate was included in the oil phase to further evaluate the persistence.

To prepare a water-in-oil cosmetic composition containing both the film-forming agent in the oil phase and the water phase in a composition as shown in Table 6.

division Compounding Ingredients (wt%) Comparative Example 5 Example 4 Oily ingredient Cyclopentasiloxane Remaining amount Remaining amount Phenyltrimethicone 3.00 3.00 Fiji-10 dimethicone 3.00 3.00 Disteadimonium hectorite 0.30 0.30 Trimethylsiloxysilicate 2.00 2.00 Spices 0.3 0.3 coloring agent Titanium dioxide 10.00 10.00 Yellow Iron Oxide, Red Iron Oxide, Black Iron Oxide 2.00 2.00 Water component Purified water Remaining amount Remaining amount Sodium chloride 0.50 0.50 Hydrolyzed Wheat Protein / FIV Crosspolymer 2.00 - Sodium Polystyrene Sulfonate - 2.00 antiseptic Quantity Quantity

<Persistency test>

The test was conducted in the same manner as the above persistence test method, and the results are shown in Table 7 below.

Comparative Example 5 Example 4 value 2469 2015

As described above, it was confirmed numerically that in Example 4 less collapse by the artificial sebum than Comparative Example 5.

Therefore, even when other types of oil-soluble coating agents were applied, it was confirmed that the sodium polystyrene sulfonate was more excellent in sustainability than the hydrolyzed wheat protein / FIVpicross polymer. In addition, the cosmetic composition using trimethylsiloxysilicate together with sodium polystyrene sulfonate was more excellent in moisturizing feeling, formulation stability, and the like than when using hydrolyzed wheat protein / FIV crosspolymer and trimethylsiloxysilicate.

Claims (9)

A water-in-oil type cosmetic composition comprising two or more types of film forming agents, comprising a film forming agent different from each other in the continuous phase and the dispersed phase. The water-in-oil cosmetic composition according to claim 1, wherein the cosmetic composition is water-in-oil or oil-in-water emulsion in which the continuous phase is an oil phase. The water-in-oil cosmetic composition according to claim 1, wherein the cosmetic composition comprises 10% by weight or less of an oil film forming agent. The water-in-oil cosmetic composition according to claim 1, wherein the cosmetic composition comprises both an oil film forming agent and an aqueous film forming agent. The water-in-oil cosmetic composition according to claim 1, wherein the cosmetic composition comprises 10 wt% or less of an oil film forming agent, and further comprises an aqueous film forming agent. 6. The oily film former according to claim 4 or 5, wherein the oil coating agent is trimethylsiloxysilicate, acrylate / stearyl acrylate / dimethicone methacrylate copolymer polypropylsilsesquioxane, C30-45 alkyldimethyl At least one member selected from the group consisting of silyl polypropyl silsesquioxane, acrylate / polytrimethylsiloxy methacrylate copolymer, acrylate / dimethicone copolymer, and phenylpropyldimethylsiloxysilicate. , Water-in-oil cosmetic composition. The water-in-oil cosmetic composition according to claim 4 or 5, wherein the aqueous film-forming agent is at least one selected from the group consisting of sodium polystyrenesulfonate, hydroxypropyl guar, and hydroxyethyl cellulose. The water-in-oil cosmetic composition according to claim 1, wherein the cosmetic composition has one or more formulations selected from the group consisting of foundation, concealer, makeup base, BB cream, lotion, cream, and wax. According to claim 1, wherein the cosmetic composition is an oil-based film forming agent comprises 0.01 to 20% by weight based on the total weight of the cosmetic composition, the aqueous film forming agent comprises 0.01 to 12% by weight relative to the total weight of the cosmetic composition Male cosmetic composition.

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