KR101719174B1 - Water-in-Silicone Type Emulsion Composition Having Liquid-crystal in Waterphase and Use thereof - Google Patents

Abstract

The present invention relates to a water-in-silicone (W / S) type emulsion composition in which a lamellar liquid crystal is water-dispersed, and more particularly to an oil-in-water (W / S) type emulsion composition comprising a liquid phase portion comprising a silicone oil and a silicone surfactant; And a silicone number (W / S) type emulsion composition dispersed in the oil phase and having a lamellar liquid crystal dispersed therein.

The silicone emulsion composition (W / S) type emulsion composition has a feeling of fresh feeling of silicone oil. When applied to the skin, the lamellar liquid crystal, similar to the stratum corneum layer of the skin, suppresses moisture evaporation of the skin, Thereby improving skin absorption by promoting skin absorption of active ingredients useful for the skin.

Lamellar liquid crystal, emulsion composition, skin dry, moisturizing

Description

(W / S) type emulsion composition in which a lamellar liquid crystal is water-dispersed and a use thereof. [0001] The present invention relates to a water-in-silicone emulsion composition,

The present invention relates to a water-in-silicone (W / S) type emulsified composition in which a lamellar liquid crystal having a skin moisturizing effect and a mass reducing effect is dispersed and its use.

Generally, liquid crystals are widely used in cosmetics, and they are melted in an oil phase and then formed at the interface by the diffusion of oil, thereby contributing to enhancement of skin moisturizing power.

The liquid crystal is structurally similar to the skin lipid, and when used as a cosmetic material, has high moisturizing power and has an excellent skin improving effect.

In addition, the liquid crystal collects a certain amount of bounded water. Such a liquid has a property that evaporation is not performed unlike free water which is not restrained. That is, the collected crystals stay like liquid crystals on the skin and consequently contribute to increase the moisture retained in the skin.

Korean Patent Laid-Open Publication No. 2004-0029764 discloses a lamellar multi-liquid crystalline gel paste prepared by making a lamellar multi-liquid crystalline film gel paste using an oily phase and a gelation agent, and adding a physiologically active substance thereto to obtain a lamellar multiple liquid crystal gel paste in which a physiologically active substance is encapsulated , And the resulting mixture is mixed with the aqueous phase to be primary emulsified to obtain spherical multi-liquid crystal membrane capsules, and the mixture is injected into a line type ultra high-speed particulate disintegrator for secondary emulsification to obtain a cosmetic composition having a nano-sized multi- .

In addition, liquid crystals have the effect of promoting skin absorption of skin-active ingredients due to similarity with skin.

Korean Patent Laid-Open Publication No. 2004-0078500 discloses a method for producing a nonionic surfactant, comprising the steps of: (a) introducing the above-mentioned oil-soluble active substance into a water-based component containing a nonionic surfactant and emulsifying the oil with high pressure to prepare a primary stabilized nonionic surfactant vesicle; A step of adding a primary stabilized nonionic surfactant vesicle to an aqueous phase component containing a phospholipid and high pressure emulsification to prepare a secondary stabilized spinosome, and (c) And the secondary stabilized spinning core is charged to prepare a tertiary stabilized lamellar liquid crystal emulsion base.

The prepared lamellar liquid crystal emulsion base is used as a composition of a cosmetic composition so that the activity of the active material is preserved so that the formulation stability is excellent and the stability is excellent to prevent skin lipid damage and improve wrinkles, moisturizing and immunizing effects have.

However, even with these various effects and advantages, there is a problem in that the feeling of use is deteriorated due to the somewhat sticky feeling of the formulation containing the liquid crystal.

Accordingly, Korean Patent Registration No. 10-0679842 discloses an underwater type emulsion cosmetic for a lamellar liquid crystal structure, characterized in that sorbitan stearate and sorbityl laurate are contained in the emulsion aqueous phase. Such an underwater type emulsion cosmetic is said to give a very moist feeling with a very light feel.

However, such an underwater type emulsifying cosmetic composition has a problem that the use feeling, that is, the spreadability to the skin is not excellent, and the feeling of stickiness still remains.

Accordingly, in the present invention, a water-in-oil type emulsion composition is prepared for the skin moisturizing effect, spreadability to the skin and feeling of fresh feeling, and various studies have been conducted to use it as a cosmetic composition. As a result, (W / S) type emulsion composition comprising silicone oil and a lamellar liquid crystal.

The present invention relates to a silicone water (W / S) type emulsion composition having a lamellar liquid crystal dispersed with both a skin barrier function due to similarity with the skin and a function of promoting skin absorption of the active material of the active material The purpose is to provide.

It is another object of the present invention to provide a cosmetic composition which not only has excellent water retention effect but also has a mass reduction effect by using the water (W / S) type emulsion composition.

In order to achieve the above object,

a) an oil phase portion comprising a silicone oil and a silicone surfactant; And

b) a silicone water (W / S) type emulsion composition comprising a water phase dispersed in the oil phase and having a lamellar liquid crystal dispersed therein.

The present invention also provides a cosmetic composition comprising the silicone water (W / S) type emulsion composition.

The silicone (W / S) type emulsion composition containing the lamellar liquid crystal according to the present invention has a feeling of using a silicone oil in a refreshing manner, and a lamellar liquid crystal similar to a stratum corneum layer dispersed when applied to the skin suppresses moisture evaporation of the skin, And at the same time, the skin is improved by improving the keratin and improving the skin absorption of the active ingredient useful for the skin.

In the present invention, a lamellar liquid crystal is applied on the upper part of a water-in-silicone (W / S) type emulsion composition in order to realize a formulation having both a feeling of fresh feeling of silicone and a skin improving effect of a lamellar liquid crystal.

1 is a schematic diagram showing an emulsified composition according to the present invention.

1, the silicone water (W / S) type emulsion composition according to the present invention comprises

a) an oily phase (10) comprising a silicone oil and a silicone surfactant; And

b) a floating portion 20 which is dispersed in the oil phase portion and in which the lamellar liquid crystal 21 is water-dispersed.

As shown in Fig. 1, the lamellar liquid crystal 21 is dissolved in the water top 20 and has a wide liquid crystal structure, which has a continuous structure of water phase and water phase in which oil is trapped between the lamellar layers. As a result, the oil in the lamellar liquid crystal 21 is present in a very irregular form. For the formation of the surfactant of the oily phase portion 20 and the lamellar liquid crystal 21 used in the water (W / S) Due to the interfered development of the surfactants used, the preparation of emulsified compositions is not easy and has very unstable conditions even if they are produced.

Accordingly, in order to improve the stability of the silicone oil-in-water emulsion composition and to improve the skin moisturizing effect due to the lamellar liquid crystal and the feeling of use by the silicone oil, the compositions of the oil-in-water and water- .

The upper part contains silicone oil as a main component so that the user can feel fresh feeling when applied to the skin, and a silicone surfactant is used here.

Silicone oils include, but are not limited to, dimethicone, cyclomethicone, polydimethylsiloxane, methylphenylpolysiloxane, methylcyclopolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, tetradecamethylhexasiloxane, Siloxane, and mixtures thereof, and preferably, cyclopentasiloxane is used.

In particular, by using a silicone surfactant as a surfactant, there is no interference of the surfactant used in the lamellar liquid crystal, thereby greatly improving the stability of the silicone water-in-oil emulsion composition.

When the lamellar liquid crystal structure is directly applied to the upper part of the water-in-oil emulsion composition due to the continuous structure of the water phase and the emulsion liquid crystal, the lamellar liquid crystal has a structure in which the surfactant used in the water- The stability of the emulsified composition such as the fact that the liquid crystal itself is not formed due to the interference phenomenon of the active agent is greatly lowered. Therefore, even if the lamellar liquid crystal structure is applied to the water surface, the present invention can stably disperse the lamellar liquid crystal in the water due to the repulsive force between the surfactant and the silicone surfactant in the lamellar liquid crystal structure using the silicone surfactant.

Examples of the silicone surfactant include polyoxyethylene methylpolysiloxane copolymer, poly (oxyethylene oxypropylene) methylpolysiloxane copolymer, polyoxyethylene alkylpolysiloxane copolymer, polyoxyethylene alkylpolysiloxane copolymer, polyoxyethylene alkylpolysiloxane copolymer, Dimethicone copolyols such as polyoxypropylene methylpolysiloxane copolymer and their fatty alcohols, derivatives such as methyl cetyloxysiloxane copolymer in which fatty acid and alkyl chain are partially substituted with alkyl groups, methyl stearoxysiloxane copolymer and the like Do

Preferably, the silicone surfactant is selected from the group consisting of phage-10 dimethicone, cetylpyridine / piperidine-10/1 dimethicone, polyoxyethylene methylpolysiloxane copolymer, poly (oxyethyleneoxypropylene) methylpolysiloxane copolymer, Polyoxypropylene methylpolysiloxane copolymer, and mixtures thereof, and more preferably, a phage-10 dimethicone is used.

Such a silicone surfactant is used in an amount of 0.5 to 10% by weight, preferably 1 to 7% by weight in the total emulsified composition. If the content is less than the above range, the stability of the emulsified composition is greatly deteriorated. On the contrary, even if the content exceeds the above range, there is no improvement in the effect.

On the other hand, as shown in Fig. 1, the water receiving portion has a structure in which a lamellar liquid crystal is dispersed in water. At this time, the lamellar liquid crystal has a continuous multilayer structure of an aqueous phase and an oil phase.

Specifically, the water receiving part contains 50 to 80% by weight of the lamellar liquid crystal composition and 1 to 10% by weight of water (purified water) in the entire emulsified composition.

The lamellar liquid crystal composition is present in an amount of at least 50% by weight in consideration of the improvement effect on the skin. When the content exceeds the range, there is a possibility that the liquid crystal is not formed or the shape of the liquid crystal is deformed due to interference, The advantage can not be secured.

In this case, the lamellar liquid crystal composition contains 1 to 10% by weight of a higher aliphatic alcohol having 12 to 22 carbon atoms, 5 to 30% by weight of an oil, and 2 to 10% by weight of a surfactant complex for forming a lamellar liquid crystal so as to satisfy 100% , And a water portion including the remainder of water. Additives known in the art may be used in each oily portion and in the water portion as needed.

The higher aliphatic alcohol constituting the lamellar liquid crystal composition may be selected from the group consisting of myristyl alcohol, lauroyl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, arachidyl alcohol, behenyl alcohol, One can be selected.

The higher aliphatic alcohol is used in an amount of 1 to 10 wt%, preferably 2 to 8 wt%, in the entire lamellar liquid crystal composition.

The oil constituting the lamellar liquid crystal composition may be selected from the group consisting of vegetable oils, animal oils, synthetic oils, mineral oils, silicone oils, and mixtures thereof. Preferably, it is selected from the group consisting of Hydrogenated Polyisobutene, Ethylhexyl Palmitate, Squalane, Macadamia Nut Oil, Olive Oil, Meadowfoam seed oil, Refined grape seed oil, Caprylic / Capric Acid Triglyceride, Cyclomethicone, and mixtures thereof. Do.

The oil is used in an amount of 5 to 30 wt%, preferably 15 to 25 wt%, in the entire lamellar liquid crystal composition.

Particularly, in the present invention, in order to form a stable emulsified composition free from interference with a silicone surfactant in a liquid phase in a water-in-silicone (W / S) type emulsion composition, a surfactant is used as a surfactant in a lamellar liquid crystal composition Lt; / RTI >

The surfactant for forming a lamellar liquid crystal composition constituting the lamellar liquid crystal composition is not simply a surfactant but contains 10 to 40% by weight of a surfactant, 50 to 80% by weight of a higher aliphatic alcohol having 12 to 22 carbon atoms, And 1 to 10% by weight of oil, so as to satisfy the functions of the above-described surfactant complex for forming a lamellar liquid crystal.

Examples of the surfactant used in the above-mentioned surfactant for forming a lamellar liquid crystal include Lecithin, Polysorbate 80, Sorbitan Stearate, Polyoxyetylene Phytosterol, Stearate (Glyceryl Monostearate), Hydrogenated Soybean Phospholipid, and a mixture thereof.

Examples of the higher aliphatic alcohol used in the surfactant complex for forming a lamellar liquid crystal include myristyl alcohol, lauroyl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, arachidyl alcohol, behenyl alcohol, Stearyl alcohol, stearyl alcohol, and mixtures thereof, preferably stearyl alcohol.

The oil used for the above-described surfactant complexes may also be selected from the group consisting of hydrogenated polyisobutene, ethylhexyl palmitate, squalene, macadamia nut oil, olive oil, midoform seed oil, purified grape seed oil, caprylic / Triglyceride, cyclomethicone, and mixtures thereof.

The above-mentioned surfactant composite for forming a lamellar liquid crystal can be directly manufactured to contain the above composition, or it can be used by purchasing a commercial product. In the embodiment of the present invention, NIKKOL Nikkomulese LC (manufactured by NIKKO CHEMICALS CO., LTD.) Is used .

Such a surfactant complex for forming a lamellar liquid crystal is used in an amount of 2 to 10% by weight, preferably 2 to 6% by weight, in the entire lamellar liquid crystal composition. If the content is less than the above range, there is a problem that the stability of emulsification is lowered. On the other hand, if the content is in excess of the above range, the liquid crystal in the inner phase is not stabilized in dispersion due to interference with oil emulsions in the oil phase.

The water phase part together with the oily part including the lamellar liquid crystal contains water (purified water), and the content thereof is used as the balance so that the entire lamellar liquid crystal composition satisfies 100 wt%.

In this case, conventional additives may be added to the upper part of the oil phase, the water phase, and the upper part of the liquid phase of the lamellar liquid crystal composition and the water surface of the emulsion composition of the silicone water (W / S) type. Examples of such additives include ultraviolet absorbers, Preservatives, moisturizers, thickeners, neutralizing agents, pH adjusting agents and the like may be used. The selection of the additive can be made by a person having ordinary skill in the art, and the content thereof is also used within a usual range. Preferably, the content of such additives should not exceed 15% by weight in the total emulsion composition.

For example, the moisturizing agent may be selected from the group consisting of glycerin, propylene glycol, dipropylene glycol, butylene glycol, isopropylene glycol, pentylene glycol, and mixtures thereof.

In summary, the silicone water (W / S) type emulsion composition according to the present invention is prepared so as to satisfy 100% by weight in the total emulsion composition,

a) i) silicone oil: the balance, and

   Ii) silicone surfactant: an oil phase comprising 0.5 to 10 wt%

b) i) 50 to 80% by weight of a lamellar liquid crystal composition, and

   Ii) water: 1 to 10% by weight.

In this case, the lamellar liquid crystal composition may be prepared so that the total content thereof is 100 wt%

i-1) an oil phase part comprising 1 to 10% by weight of a higher aliphatic alcohol having 12 to 22 carbon atoms, 5 to 30% by weight of an oil, and 2 to 10% by weight of a surfactant complex for forming a lamellar liquid crystal,

i-2) water: a water portion containing the remainder.

The above-mentioned surfactant composite for lamellar liquid crystal formation is prepared by mixing 10 to 40% by weight of a surfactant, 50 to 80% by weight of a higher aliphatic alcohol having 12 to 22 carbon atoms, and 1 to 10% .

The method for producing the silicone water (W / S) type emulsion composition according to the present invention is not particularly limited in the present invention, and it follows a known method for producing a water-in-oil type emulsion composition.

Typically,

S1) a step of mixing a high-grade aliphatic alcohol having 12 to 22 carbon atoms, an oil and a surfactant complex for forming a lamellar liquid crystal, and then adding the resulting mixture to water to prepare a lamellar liquid crystal composition,

S2) The lamellar liquid crystal composition and water are mixed to prepare an aqueous phase composition,

S3) An oil phase composition is prepared by mixing a silicone oil and a silicone surfactant,

S4) The oil composition is prepared by mixing the aqueous composition.

At this time, the surfactant complex used in S1) is prepared by uniformly mixing a surfactant, a higher aliphatic alcohol and an oil, or a commercially available one is purchased and used.

The mixing can be performed by applying heat as required, and a mixer such as a homogenizer is used for uniform mixing.

The silicone water (W / S) type emulsion composition according to the present invention, which is manufactured through these steps, is characterized in that the lamellar liquid crystal is dispersed and stabilized in an aqueous phase, and the oil phase which is a continuous phase outside the formulation includes silicone oil.

The silicone water (W / S) type emulsion composition can be used as a cosmetic composition applied to the skin due to a lamellar liquid crystal having a structure similar to skin cells, that is, keratin, in the upper part of the water.

When the emulsified composition is applied as a cosmetic composition, the silicone oil imparts a pleasant feel to the user due to its good spreadability and light feel.

In addition, a lamellar liquid crystal having a structure similar to that of skin, which is dispersed and applied to the skin, is applied to the skin to form a film to contain a large amount of water. By reducing moisture evaporation, Thereby reducing the transparency of the skin due to the lack of moisture, the roughness of the skin and the degradation of the skin glossiness.

In addition, the skin similarity of lamellar liquid crystals has the property of increasing the penetration of active ingredients effective for skin improvement.

At the same time, by promoting the differentiation of keratinocyte cells, it induces strengthening of skin barrier, thereby improving the skin moisture retention function, thereby improving the skin moisturizing effect and exfoliation reduction effect. The function can be improved and improved, and the skin improvement effect can be obtained.

The components contained in the cosmetic composition comprising the water-in-silicone (W / S) type emulsion composition according to the present invention include conventional auxiliary agents and carriers commonly used in cosmetic compositions, in addition to active ingredients as an active ingredient.

Such a cosmetic composition may be prepared by any of the formulations conventionally manufactured in the art, and examples thereof include a nutritional cream, a massage cream, a hand cream, an eye cream, a body cream, a suntan cream, a cleansing cream, a makeup base cream, Cream, control cream, sun cream, essence, flexible lotion, convergent lotion, nutritional lotion, nutritional cream, pack and the like.

Hereinafter, the present invention will be described in more detail with reference to Examples and Experimental Examples. However, the scope of the present invention is not limited to the following examples and experimental examples.

 (Example 1)

(1) Preparation of lamellar liquid crystal composition

A lamellar liquid crystal composition was prepared using the composition shown in Table 1 below.

Component (% by weight) Production Example 1 Comparative Preparation Example 1 Comparative Production Example 2 Water top 1. Purified water Balance Balance Balance 2. Disodium iodide 0.02 0.02 0.02 3. Methylparaben 0.15 0.15 0.15 4. Glycerine 3.00 3.00 3.00 5. Butylene glycol 3.00 3.00 3.00 6. Carbomer 0.15 0.15 0.15 Floating 7. Surface active complex for liquid crystal formation ^{1 )} 5.00 2.00 10.00 8. Cetearyl alcohol 3.00 3.00 3.00 9. Squalane 5.00 5.00 5.00 10. Caprylic / Capric Triglyceride 3.00 3.00 3.00 11. Cyclopentasiloxane 3.00 3.00 3.00 12. Cetylethyl Nucleosanoate 3.00 3.00 3.00 13. Dimethicone 0.50 0.50 0.50 Neutralization 14. Triethanolamine 0.15 0.15 0.15 adding 15. Phenoxyethanol 0.20 0.20 0.20 total 100.00 100.00 100.00

1) NIKKOL Nikkomulese LC

To the mixer was added the purified water of the water-receiving part and the composition of 2 to 6, and the solution was completely dissolved at 70 캜 to prepare an aqueous phase component. In the same manner, the components 1 to 6 of the oil phase were added to other mixers and completely dissolved at 70 DEG C to prepare an oily component.

While stirring the aqueous phase component at the same temperature, the prepared aqueous phase component was slowly added dropwise and stirred for 5 minutes using a homogenizer to prepare an emulsion. To this, 14 and 15 components were added as an additive to neutralize, and the mixture was further stirred for 5 minutes.

After stirring, the temperature of the mixer was lowered to 30 DEG C to prepare a lamellar liquid crystal composition.

(2) Preparation of an emulsion composition in which the lamellar liquid crystal composition is dispersed in water

Using the lamellar liquid crystal composition prepared in (1) above, emulsified compositions were prepared according to the compositions shown in Tables 2 and 3 below.

The silicone water-in-oil emulsion compositions of Examples 1 to 4 Component (% by weight) Example 1 Example 2 Example 3 Example 4 Floating 1. Cyclopentasiloxane Balance Balance Balance Balance 2. Piggy-10 dimethicone 2.00 2.00 2.00 2.00 3. Distearoyldimonium hectorite 1.00 1.00 1.00 1.00 4. Propylparaben 0.05 0.05 0.05 0.05 Water top 5. Purified water 4.00 4.00 4.00 4.00 6. Disodium iodide 0.02 0.02 0.02 0.02 7. Methylparaben 0.10 0.10 0.10 0.10 8. Sodium chloride 1.00 1.00 1.00 1.00 9. Lamella liquid crystal composition of Production Example 1 69.83 64.83 59.83 54.83 10. Glycerine - - - - 11. Butylene glycol - - - - additive 12. Phenoxyethanol 0.10 0.10 0.10 0.10 13. Flavoring agent Suitable amount Suitable amount Suitable amount Suitable amount total 100.00 100.00 100.00 100.00

The emulsion compositions of Comparative Examples 1 to 5 Component (% by weight) Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Floating 1. Cyclopentasiloxane Balance Balance Balance Balance Balance 2. Piggy-10 dimethicone 2.00 2.00 2.00 2.00 2.00 3. Distearoyldimonium hectorite 1.00 1.00 1.00 1.00 1.00 4. Propylparaben 0.05 0.05 0.05 0.05 0.05 Water top 5. Purified water 43.00 4.00 4.00 4.00 4.00 6. Disodium iodide 0.02 0.02 0.02 0.02 0.02 7. Methylparaben 0.10 0.10 0.10 0.10 0.10 8. Sodium chloride 1.00 1.00 1.00 1.00 1.00 9. Lamella liquid crystal composition of Production Example 1 - 10.00 85.00 - - 9-2. The lamellar liquid crystal composition of Comparative Production Example 1 - - - 59.83 - 9-3. The lamellar liquid crystal composition of Comparative Production Example 2 - - - - 59.83 10. Glycerine 10.00 10.00 - - - 11. Butylene glycol 10.00 10.00 - - - additive 12. Phenoxyethanol 0.10 0.10 0.10 0.10 0.10 13. Flavoring agent Suitable amount Suitable amount Suitable amount Suitable amount Suitable amount total 100.00 100.00 100.00 100.00 100.00

The components 1 to 4 of the oily phase were added to the mixer and completely dissolved at 70 DEG C to prepare an oily component. In the same manner, a composition of 5 to 11 was added to another mixer in purified water of the water-receiving portion, and the solution was completely dissolved at 70 DEG C to prepare an oily component.

While stirring the above-mentioned oil component at the same temperature, the water component thus prepared was slowly added dropwise and stirred for 5 minutes using a homogenizer to prepare an emulsion. To this, 12 and 13 components were added as an additive to neutralize, and the mixture was further stirred for 5 minutes.

After stirring, the temperature of the mixer was lowered to 30 占 폚 to prepare an emulsified composition.

(Experimental Example 1)

The structures of the lamellar liquid crystal composition and the emulsion composition prepared in Example 1 were measured using a polarizing microscope.

FIG. 2 is a polarized image of the lamellar liquid crystal composition prepared in Example 1, showing that the size of the internal particles is very regular and a liquid crystal structure exists between the particles.

FIG. 3 is a polarized image of the emulsion composition prepared in Examples 1 to 4, showing that a liquid crystal structure exists between particles.

(Test Example 1) Skin moisturizing effect

In order to examine the skin moisturizing effect of the lamellar liquid crystal composition and the emulsified composition containing the lamellar liquid crystal composition according to the present invention, the lamellar liquid crystal composition prepared in (1) of Example 1, the emulsified composition prepared in Examples 1 to 4, The emulsion composition prepared in Examples 1 to 4 was used as follows.

In order to determine the duration of skin moisturization at the time of one application, each emulsion composition was applied to the inner side of the left arm hump to 15 men and women aged 20-30 who do not have skin disease, The water content was measured.

After the test area is cleaned, mark the position and measure the value by pressing the skin cone against the skin constantly (initial value). In order to reduce the error from the surrounding environment, maintain the constant temperature (20 ± 2 ° C) and humidity (50 ± 2%), and measure the value three times and use the average value. The test substance and the target substance were applied once, and after 2 hours and 6 hours, the amount of change in the moisture retention of the skin over time was observed. Each test value represents the average value of the test results, and the results are shown in FIG.

4 is a graph showing the skin moisture content of the lamellar liquid crystal composition of Production Example 1, the emulsified compositions of Examples 1 to 4, and the emulsified compositions of Comparative Examples 1 to 5.

As shown in FIG. 4, the moisture content of the lamellar liquid crystal composition according to the present invention and the composition containing the same is superior to that of the comparative example.

(Test Example 2) Sensory sensory test

The emulsion composition prepared in Example 2 and Comparative Example 1 was used as follows to examine the feel of use of the lamellar liquid crystal composition and the emulsified composition containing the same according to the present invention.

The emulsified compositions of Example 2 and Comparative Example 1 were used for 15 subjects who were suitable for the purpose of the test. The evaluation of the skin improvement effect and feeling of use of the product were evaluated through questionnaire evaluation by the subject. The subjects were asked to write a questionnaire on the scale of 'Satisfaction is very high' (5) and 'Satisfaction is very low' (1). The results are shown in Table 4.

Floating Brittle absorptivity Stickiness A sense of closeness Moistness Softness No stimulation Overall Satisfaction grade Example 2 4.1 3.9 4.1 3.9 3.8 3.9 4.0 3.9 3.9 3.9 Comparative Example 1 3.8 3.1 3.4 2.4 2.9 3.1 2.4 3.8 3.1 3.1

As shown in Table 4, it can be seen that the composition of Example 2 including the lamellar liquid crystal composition according to the present invention has a feeling of use that is superior to that of the composition of Comparative Example 1, that is, a fresh feeling.

(Test Example 3) Skin improvement effect sensory test

In order to examine the improvement effect of the lamellar liquid crystal composition and the emulsified composition containing the lamellar liquid crystal composition according to the present invention on skin dryness, the emulsified composition prepared in Examples 1 to 4 and Comparative Examples 1 to 5 was used as follows.

The results of the subjective efficacy were also given to the 15 women who completed the questionnaire on the skin improvement effect. The results are shown in Table 5 below.

<Criteria>

◎: It is judged that more than 10 out of 15 people have moisturizing effect, reduced dead skin and smooth skin texture.

O: Eight or more of the 15 patients were judged to have a moisturizing effect, a reduction in skin exfoliation, and a smoother skin texture.

△: It is judged that more than 5 out of 15 people have moisturizing effect, skin deadening and skin texture smoothening.

X: Less than 5 out of 15 patients were judged to have a moisturizing effect, a reduction in dead skin and a smoother skin texture.

Sample respondents Moistness Reduction of exfoliation Skin smoothness Example 1 ◎ ◎ ◎ Example 2 ◎ ◎ ◎ Example 3 ◎ ◎ ◎ Example 4 ◎ ◎ ◎ Comparative Example 1 O △ △ Comparative Example 2 △ O △ Comparative Example 3 O △ △ Comparative Example 4 △ △ △ Comparative Example 5 △ △ △

As shown in Table 5, the composition containing the lamellar liquid crystal composition according to the present invention is superior to the composition of the comparative example in skin improving effect.

(Test Example 4) Each mass reduction test

In order to examine the effect of reducing the mass of each of the water-in-oil emulsion compositions according to the present invention, the emulsion compositions prepared in Examples 1 to 4 and the emulsion compositions prepared in Comparative Examples 1 to 5 were used as follows.

For 13 women aged 29-39 who do not have skin disease, 2 times a day was used twice a day. The body weight was measured before and 1 week and 2 weeks after use, The obtained results are shown in Table 6 and Fig.

Each mass (%) Before application After 1 week after 2 weeks Example 1 20.1 9.7 9.1 Example 2 20.4 9.8 8.5 Example 3 20.8 8.7 8.1 Example 4 21.2 9.5 8.9 Comparative Example 1 19.9 17.6 16.7 Comparative Example 2 20.1 19.4 19.1 Comparative Example 3 19.8 19.1 18.7 Comparative Example 4 22.1 18.4 17.5 Comparative Example 5 20.7 17.7 15.9

As shown in Table 6 and FIG. 5, the silicone oil-in-water emulsion composition according to the present invention is superior to the composition of the comparative example in reducing the skin deadening effect.

FIG. 6 is a graph showing the skin erasing effect of the emulsified composition prepared in Example 2. FIG.

The 'Tape Striping' method was used to measure skin keratin, which was measured by counting the number of keratin in the unit range after removing the keratin skin using tape. At this time, the smaller the number of pixels, the smaller the amount of keratin and the skin is judged to be improved.

Referring to FIG. 6, it can be seen that the inclusion of the lamellar liquid crystal composition according to the present invention can effectively improve the keratin of the skin (p < 0.05).

( Test Example  5) Degree of appearance  evaluation

The lamellar liquid crystal composition of Production Example 1, the emulsified compositions of Examples 1 to 4, and the emulsified compositions of Comparative Examples 1 to 5, which were prepared as described above, were stored for 1 month at 25 ° C, 5 ° C, The phase stability was visually observed. In this case, 'cycle' refers to a condition that circulates at 25 ° C, 5 ° C, and 45 ° C for 6 hours, respectively.

45 ° C cycle 25 ℃ 5 ℃ Production Example 1 △ △ O O Example 1 O O O O Example 2 O O O O Example 3 O O O O Example 4 O O O O Comparative Example 1 O O O O Comparative Example 2 O O O O Comparative Example 3 × × △ △ Comparative Example 4 O O O O Comparative Example 5 O O O O

Referring to Table 7, it can be seen that the emulsion compositions of Examples 1 to 4 according to the present invention have excellent dispersion stability even at a high temperature and a low temperature.

In contrast, the dispersion stability of Preparation Example 1 and Comparative Example 3 was low, which means that the stability is lowered due to the interference of the surfactant present in the lamellar liquid crystal and the surfactant present in the liquid phase.

The silicone water (W / S) type emulsion composition according to the present invention can be applied as a cosmetic composition for skin moisturizing and skin care.

1 is a schematic diagram showing an emulsified composition according to the present invention.

2 is a polarized image of the lamellar liquid crystal composition prepared in Example 1. Fig.

3 (a) to 3 (d) are polarized images of the emulsion composition prepared in Examples 1 to 4.

4 is a graph showing the skin moisture content of the lamellar liquid crystal composition of Production Example 1, the emulsified compositions of Examples 1 to 4, and the emulsified compositions of Comparative Examples 1 to 5.

5 is a graph showing changes in mass after using the emulsion compositions of Examples 1 to 4 and Comparative Examples 1 to 5.

FIG. 6 is a graph showing the skin erasing effect of the emulsified composition prepared in Example 2. FIG.

Claims (14)

a) a silicone oil and at least one polymer selected from the group consisting of phage-10 dimethicone, tertiary / piperidine-10/1 dimethicone, polyoxyethylene methylpolysiloxane copolymer, poly (oxyethyleneoxypropylene) methylpolysiloxane copolymer and polyoxypropylene methylpolysiloxane An oil phase part comprising one kind of silicone surfactant selected from the group consisting of a copolymer, and a mixture thereof; And b) a water phase part dispersed in the oil phase part and having a lamella liquid crystal dispersed therein, The silicone (W / S) type emulsion composition was prepared so as to satisfy 100 wt% a) i) silicone oil: the balance, and    Ii) silicone surfactant: an oil phase comprising 0.5 to 10 wt% b) i) 50 to 80% by weight of a lamellar liquid crystal composition, and    (Ii) water: 1 to 10% by weight of water. delete The composition of claim 1, wherein the silicone oil is selected from the group consisting of dimethicone, cyclomethicone, polydimethylsiloxane, methylphenylpolysiloxane, methylcyclopolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, tetradecamethyl (W / S) type emulsified composition, wherein the emulsifier is one selected from the group consisting of hexasiloxane, octamethyltrisiloxane, and mixtures thereof. delete The lamellar liquid crystal composition according to claim 1, wherein the lamellar liquid crystal composition comprises 100% An oil phase portion comprising 1 to 10 wt% of a higher aliphatic alcohol having 12 to 22 carbon atoms, 5 to 30 wt% of an oil, and 2 to 10 wt% of a surfactant complex for forming a lamellar liquid crystal, and (W / S) type emulsified composition, wherein the emulsion composition is composed of a water-containing portion containing water. 6. The method of claim 5, wherein the higher aliphatic alcohol is selected from the group consisting of myristyl alcohol, lauroyl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, arachidyl alcohol, behenyl alcohol, Lt; RTI ID = 0.0 &gt; (W / S) &lt; / RTI &gt; type emulsion composition. 6. The composition of claim 5 wherein the oil is selected from the group consisting of hydrogenated polyisobutene, ethylhexyl palmitate, squalane, macadamia nut oil, olive oil, midoform seed oil, purified grape seed oil, caprylic / capric triglyceride, (W / S) type emulsified composition, wherein the emulsion composition comprises one or more selected from the group consisting of methicone, and mixtures thereof. The composition according to claim 5, wherein the surfactant for lamellar liquid crystal formation comprises 10 to 40% by weight of a surfactant, 50 to 80% by weight of a higher aliphatic alcohol having 12 to 22 carbon atoms, and 1 to 10% (W / S) type emulsified composition. The composition according to claim 8, wherein the surfactant is selected from the group consisting of: a phage-10 dimethicone, a tertiary phthalimide / piperidine-10/1 dimethicone, a polyoxyethylene methylpolysiloxane copolymer, a poly (oxyethyleneoxypropylene) Polyoxypropylene methylpolysiloxane copolymer, polyoxypropylene methylpolysiloxane copolymer, polyoxypropylene methylpolysiloxane copolymer, and mixtures thereof. The composition of claim 8, wherein the higher aliphatic alcohol is selected from the group consisting of myristyl alcohol, lauroyl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, arachidyl alcohol, behenyl alcohol, (W / S) type emulsified composition. 9. The composition of claim 8, wherein the oil is selected from the group consisting of hydrogenated polyisobutene, ethylhexyl palmitate, squalane, macadamia nut oil, olive oil, midoform seed oil, purified grape seed oil, caprylic / capric triglyceride, (W / S) type emulsified composition, wherein the emulsion composition comprises one or more selected from the group consisting of methicone, and mixtures thereof. The silicone water (W / S) type emulsion composition according to claim 1, further comprising an additive comprising an ultraviolet absorber, an antioxidant, a whitening agent, an antiseptic, a humectant, a thickener, a neutralizing agent and a pH adjusting agent. 13. A cosmetic composition comprising a silicone water (W / S) type emulsified composition according to any one of claims 1, 3 and 5 to 12. 14. The cosmetic composition according to claim 13, wherein the cosmetic composition is selected from the group consisting of nourishing cream, massage cream, hand cream, eye cream, body cream, suntan cream, Wherein the composition is formulated into one formulation selected from a lotion, a nutritional lotion, a nutritional cream, or a pack.

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