KR20110076076A - Water-in-silicone type emulsion composition having liquid-crystal in waterphase and use thereof - Google Patents

Abstract

PURPOSE: A water in silicone type emulsion composition in which lamellar liquid crystal is dispersed is provided to suppress moisture evaporation and to enhance moisturizing. CONSTITUTION: A water in silicone type(W/S) emulsion composition contains 0.5-10 weight% of oil phase part containing silicone oil and silicone surfactant; and an aqueous phase part which contains 50-80 weight% of lamellar liquid crystal composition and 1-10 weight% of water and is dispersed in the oil phase. A cosmetic composition contains the W/S emulsion composition. The cosmetic composition is manufactured in the form of nutrition cream, massage cream, hand cream, eye cream, body cream, makeup base cream, or pack.

Description

Water-in-Silicone Type Emulsion Composition Having Liquid-crystal in Waterphase and Use about

The present invention relates to a water (W / S) type emulsion composition in silicone dispersed with a lamellar liquid crystal having a skin moisturizing effect and an angular mass reduction effect, and a use thereof.

In general, liquid crystals are widely used in cosmetics, are dissolved at the oil phase, and are formed at the interface by the diffusion of oil, thereby contributing to enhancing skin moisturizing ability.

Liquid crystals are structurally similar to skin lipids, and have high moisturizing properties when used as a cosmetic material and have excellent skin improvement effects.

In addition, the liquid crystal traps a certain amount of bound water, and this water has a characteristic that evaporation is not good unlike free water. That is, the crystallized water stays like liquid crystal on the skin and consequently contributes to increase the amount of water retained in the skin.

Korean Patent Laid-Open Publication No. 2004-0029764 makes a lamellar multi-liquid crystal gel paste using an oil phase part and a gelling agent, and adds a bioactive substance to obtain a lamellar multi-crystal gel paste in which a bioactive substance is encapsulated. The mixture was stirred with the aqueous phase and firstly emulsified to obtain a spherical multi-liquid crystal membrane capsule. Manufacture.

In addition, the liquid crystal has an effect of promoting skin absorption of the skin-active active ingredient due to similarity with the skin.

Korean Patent Laid-Open No. 2004-0078500 discloses a method of preparing a first stabilized nonionic surfactant vesicle by (a) adding the oil-soluble active material to an aqueous phase component including a nonionic surfactant and performing high pressure emulsification, (b) Adding the first stabilized nonionic surfactant vesicle to an aqueous phase component containing phospholipid and emulsifying under high pressure to prepare a secondary stabilized spinosome, and (c) an emulsified base in which the oil phase and the aqueous phase are uniformly mixed. The secondary stabilized spinosome is added to prepare a tertiary stabilized lamellar liquid crystal emulsified base.

It is mentioned that the prepared lamellar liquid crystal emulsifying base is used as a cosmetic composition, so that the titer of the active substance is excellently preserved, so that the formulation stability is excellent, and that such stability has excellent skin lipid damage prevention and wrinkle improvement, moisturizing and immune effects. have.

However, even with these various effects and advantages, formulations containing liquid crystals remain problematic due to the somewhat sticky feeling.

Accordingly, Korean Patent Registration No. 10-0679842 proposes an oil-in-water emulsion cosmetic having a lamellar liquid crystal structure, which comprises sorbitan stearate and sorbital laurate in the aqueous phase of the emulsion. It is mentioned that such oil-in-water emulsion cosmetics have a very light feeling and have a high moisturizing effect.

However, such oil-in-water emulsion cosmetics, there is a problem in that the use, that is, the spreadability to the skin is not excellent, the sticky feeling still remains.

Thus, in the present invention, a water-in-oil emulsified composition other than the oil-in-water type for the skin moisturizing effect, spread to the skin and a fresh feeling, and a multi-research to use it as a cosmetic, made of a multilayer in the water phase A water type emulsion composition in silicon was prepared, including a lamellar liquid crystal and using a silicone oil in the oil phase.

The present invention provides a water-soluble (W / S) type emulsion composition of silicone dispersed in lamellar liquid crystals having a function of improving skin barrier function and promoting skin absorption of the active substance due to similarity with the skin while having a fresh feeling. Its purpose is to provide.

In addition, another object of the present invention is to provide a cosmetic composition having an excellent moisturizing effect and an angular mass reduction effect by using the water type emulsion composition in the silicone.

In order to achieve the above object,

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

b) provides a water (W / S) type emulsion composition in silicon, which is dispersed in the oil phase portion and comprises a water phase portion in which a lamellar liquid crystal is dispersed.

The present invention also provides a cosmetic composition comprising the water-type emulsion composition in the silicone.

The water-type emulsion composition in the silicone containing lamellar liquid crystal according to the present invention has a fresh feeling of using silicone oil, and when applied to the skin, the lamellar liquid crystal similar to the stratum corneum of the dispersed skin inhibits water evaporation of the skin and increases moisture. By improving the keratin, it has the effect of improving the skin by promoting the skin absorption of the active ingredient useful for the skin.

The present invention was applied to the lamellar liquid crystal in the water phase of the water-type emulsion composition of the silicone in order to implement a formulation having a refreshing feeling of silicone and the skin improvement effect of the lamellar liquid crystal simultaneously.

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

1, the water type emulsion composition of the silicone according to the present invention

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

b) the aqueous phase 20 dispersed in the oil phase portion, the lamellar liquid crystal 21 is dispersed therein.

As shown in FIG. 1, the lamellar liquid crystal 21 is dissolved in the aqueous phase 20 to have a wide range of liquid crystal structures, which have a continuous structure of an oil phase and an oil phase in which oil is collected between the lamellar layers. Because of this, the oil in the lamellar liquid crystal 21 is present in a very irregular form, the surfactant of the oil phase portion 20 used in the water-type emulsion composition of the silicone and the surfactant used for the formation of the lamellar liquid crystal 21 Due to the interference phenomenon, the preparation of the emulsion composition is not easy, and even if it is prepared, it has a very unstable state.

Accordingly, in the present invention, in order to improve the stability of the water-emulsifying composition in silicone and improve the skin moisturizing effect due to the lamellae liquid crystal and the feeling of using the silicone oil, the composition of each oil phase part and the water phase part, in particular, a surfactant was specified and its content was limited. .

The oily part contains silicone oil as a main component to give the user a fresh feeling when applied to the skin, and uses a silicone surfactant.

Silicone oils include dimethicone, cyclomethicone, polydimethylsiloxane, methylphenylpolysiloxane, methylcyclopolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, tetradecamethylhexahexasiloxane, octamethyltri One selected from the group consisting of siloxanes, and mixtures thereof is possible, and cyclopentasiloxane is preferably used.

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

The lamellar liquid crystal has an interface used for forming the lamellar liquid crystal and the surfactant used in the aqueous emulsified composition in silicon when the lamellar liquid crystal structure is directly applied to the aqueous phase in the water emulsion composition in silicon due to the continuous structure of the water phase and the oil phase. Stability of the emulsion composition is greatly lowered, such as the liquid crystal itself is not formed by the interference phenomenon of the active agent. Therefore, in the present invention, even when the lamellar liquid crystal structure is applied to the water phase part, the lamellar liquid crystal is stably dispersed in the water phase part due to the repulsive force between the surfactant and the silicone surfactant in the lamellar liquid crystal structure using the silicone surfactant.

Silicone surfactants include polyoxyethylene methyl polysiloxane copolymers, poly (oxyethyleneoxypropylene) methyl polysiloxane copolymers, which are provided with polyoxyethylene, polyoxypropylene, polyoxyethylene polyoxypropylene, or the like to silicone oils to impart interfacial activity. Dimethicone copolyols such as polyoxypropylene methylpolysiloxane copolymers and fatty alcohols thereof, or derivatives such as methylcetyloxysiloxane copolymers or methyl stearoxysiloxane copolymers in which fatty acids or alkyl chains are partially substituted with alkyl groups. Do

Preferably, the silicone surfactant may be Fiji-10 dimethicone, Sechil Fiji / Fiji-10 / 1 dimethicone, polyoxyethylene methylpolysiloxane copolymer, poly (oxyethyleneoxypropylene) methyl polysiloxane copolymer and One selected from the group consisting of polyoxypropylene methylpolysiloxane copolymers, and mixtures thereof is possible, and more preferably, Fiji-10 dimethicone is used.

Such silicone surfactants are used at 0.5 to 10% by weight, preferably 1 to 7% by weight in the total emulsion composition. If the content is less than the above range, the stability of the emulsion composition is greatly lowered. On the contrary, even if the content exceeds the above range, there is no significant improvement in effect, so it is suitably used within the above range.

On the other hand, the water phase portion has a structure in which the lamellar liquid crystal is dispersed therein as shown in FIG. In this case, the lamellar liquid crystal has a continuous multilayer structure of an aqueous phase and an oil phase.

Specifically, the water phase part comprises 50 to 80% by weight of the lamellar liquid crystal composition and 1 to 10% by weight of water (purified water) in the total emulsion composition.

Lamellar liquid crystal composition is present in at least 50% by weight or more in consideration of the improvement effect on the skin, if the content exceeds the range when the interference occurs, the liquid crystal is not formed or the shape of the liquid crystal itself may be deformed There is no advantage.

At this time, the lamellar liquid crystal composition is 1 to 10% by weight of the higher aliphatic alcohol, 5 to 30% by weight of oil, and 2 to 10% by weight of the lamellar liquid crystal forming surfactant complex, so as to satisfy 100% by weight, and water : It consists of a water phase part containing a remainder. If desired, additives as known in the art may be used in each oil and water column.

The higher aliphatic alcohol constituting the lamellar liquid crystal composition may be myristyl alcohol, lauroyl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, arachidyl alcohol, behenyl alcohol, batyl alcohol, lauric acid, myristicin. One selected from the group consisting of acid, palmitic acid, stearic acid, isostearic acid, arachidic acid, behenic acid and mixtures thereof is possible.

The higher aliphatic alcohol is used in 1 to 10% by weight, preferably 2 to 8% by weight in the total lamellar liquid crystal composition.

The oil constituting the lamellar liquid crystal composition may be one selected from the group consisting of vegetable oils, animal oils, synthetic oils, mineral oils, silicone oils, and mixtures thereof. Preferably, hydrogenated polyisobutene, ethylhexyl palmitate, squalene, macadamia nut oil, olive oil, meadowfoam seed oil ( One selected from the group consisting of Meadowfoam seed oil, Refined grape seed oil, Caprylic / Capric Acid Triglyceride, Cyclomethicone, and mixtures thereof Do.

The oil is used in the total lamellar liquid crystal composition at 5 to 30% by weight, preferably at 15 to 25% by weight.

In particular, the present invention uses a surfactant composite for lamellar liquid crystal formation as a surfactant in the lamellar liquid crystal composition to form a stable emulsion composition without interference with the silicone surfactant in the oil phase in the water type emulsion composition in the silicone.

The lamellar liquid crystal forming surfactant composite constituting the lamellar liquid crystal composition is not merely a surfactant, but 10 to 40% by weight of surfactant, 50 to 80% by weight of higher aliphatic alcohol, and 1 to 10% by weight of oil to satisfy 100% by weight. It is prepared by mixing in%, so as to satisfy the function of the above-described lamellar liquid crystal forming surface-active composite.

Surfactants used in the lamellar liquid-crystal-forming surfactant complex include lecithin, polysorbate 80, sorbitan stearate, polyoxyethylene phytosterol, glyceryl mono One selected from the group consisting of stearates (Glyceryl Monostearate), hydrogenated Soybean Phospholipid, and mixtures thereof is possible.

In addition, the higher aliphatic alcohols used in the lamellar liquid crystal-forming surfactant composites include myristyl alcohol, lauroyl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, arachidyl alcohol, behenyl alcohol, One selected from the group consisting of batyl alcohol, lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, arachidic acid, behenic acid, and mixtures thereof, preferably stearyl alcohol is used.

The oils used in the surfactant composites are also hydrogenated polyisobutin, ethylhexyl palmitate, squalene, macadamia nut oil, olive oil, meadowfoam seed oil, purified grape oil, caprylic / capric as described above. One selected from the group consisting of triglycerides, cyclomethicone, and mixtures thereof is possible.

The lamellar liquid crystal forming surfactant composite may be used directly to manufacture or use commercially available to include the composition, in the embodiment of the present invention used NIKKOL Nikkomulese LC (manufacturer: NIKKO CHEMICALS CO., LTD) Doing.

The lamellar liquid crystal forming surfactant composite is used in the total lamellar liquid crystal composition in an amount of 2 to 10% by weight, preferably 2 to 6% by weight. If the content is less than the above range, there is a problem that the emulsion stability is lowered. On the contrary, if the content exceeds the above range, the liquid crystal of the inner phase is not dispersed and stabilized due to interference with the silicone emulsifier in the oil phase in the multiemulsification composition.

The water phase part together with the oil phase part including the lamellar liquid crystal includes water (purified water), the content of which is used as the remainder so that the entire lamellar liquid crystal composition satisfies 100% by weight.

In this case, conventional additives may be used in the oil phase portion, the water phase portion, and the oil phase portion and the water phase portion of the lamellar liquid crystal composition in silicone, and such additives may include UV absorbers, antioxidants, whitening agents, preservatives, humectants, and thickeners. Agents, neutralizing agents, pH adjusting agents and the like can be used. The selection of the additives can be selected by one of ordinary skill in the art, the content of which is also used within the usual range. Preferably, the content of such additives is preferably not more than 15% by weight in the total emulsion composition.

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

In summary, the water type emulsion composition in the silicone according to the present invention to satisfy 100% by weight in the total emulsion composition,

a) iii) silicone oil: balance, and

   Ii) silicone surfactant: oil phase comprising 0.5 to 10% by weight,

b) iii) lamellar liquid crystal composition: 50 to 80% by weight, and

   Ii) water: consisting of an aqueous phase comprising from 1 to 10% by weight.

In this case, the lamellar liquid crystal composition is 100% by weight in total.

i-1) higher aliphatic alcohol: 1 to 10% by weight, oil: 5 to 30% by weight, and lamellar liquid crystal-forming surfactant composite: 2 to 10% by weight of oil phase part, and

i-2) Water: It consists of a water phase part including remainder.

In addition, the lamellar liquid crystal-forming surfactant composite includes a composite composed of 10 to 40% by weight of surfactant, 50 to 80% by weight of higher aliphatic alcohol, and 1 to 10% by weight of oil to satisfy 100% by weight.

The manufacturing method of the water-type emulsion composition in the silicone according to the present invention is not particularly limited in the present invention, and follows the production method of the water-in-oil emulsion composition as known.

Typically,

S1) After mixing the higher aliphatic alcohol, oil and the surfactant complex for lamellar liquid crystal formation, the obtained mixture is added to water to prepare a lamellar liquid crystal composition,

S2) mixing the lamellar liquid crystal composition and water to prepare an aqueous phase composition,

S3) preparing an oil phase composition by mixing silicone oil and silicone surfactant,

S4) It is prepared by mixing the aqueous phase composition with the oil phase composition.

In this case, the surfactant composite used in S1) is prepared by mixing a surfactant, a higher aliphatic alcohol and an oil uniformly, or using a commercially available one.

The mixing may be carried out by applying heat as necessary, using a mixer such as a homogenizer for uniform mixing.

The water-type emulsion composition in the silicone according to the present invention prepared through this step is lamellar liquid crystal is dispersed and stabilized in the water phase, the oil phase in the continuous phase outside the formulation comprises a silicone oil.

The water-type emulsion composition in the silicone can be used as a cosmetic composition applied to the skin due to the lamellar liquid crystal having a structure similar to skin cells, ie, keratin in the water phase.

When the emulsified composition is applied as a cosmetic, it has a spreading property and a light feeling by the user with silicone oil to have a fresh feeling.

In addition, the lamellar liquid crystal having a structure similar to the skin dispersed after application to the skin may be applied to the skin to form a film to contain a large amount of moisture, and by reducing moisture evaporation, the stratum corneum layer due to environmental changes such as temperature change, humidity decrease and wind It can prevent the causes such as decrease in transparency of skin due to lack of moisture, skin roughness and skin gloss degradation.

In addition, due to the skin similarity of the lamellar liquid crystal has the property of increasing the penetration of the skin of the active ingredient effective for skin improvement.

At the same time, it promotes the differentiation of keratinocytes, induces skin barrier, and improves skin moisture retention function, thereby improving skin moisturizing effect and reducing keratin effect. You can improve and improve your function to get skin benefits.

The components included in the cosmetic composition comprising the water type emulsion composition in the silicone according to the present invention include, in addition to the oil-soluble active substance as an active ingredient, conventional auxiliaries and carriers commonly used in cosmetic compositions.

Such cosmetic compositions may be prepared in any formulations commonly made in the art, for example, nutrition creams, massage creams, hand creams, eye creams, body creams, tanning creams, cleansing creams, makeup base creams, foundations It may be prepared in the form of a cream, control cream, sun cream, essence, softening lotion, astringent lotion, nutrition lotion, nutrition 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

To use the composition of Table 1 to prepare a lamellar liquid crystal composition.

Ingredient (% by weight) Preparation Example 1 Comparative Production Example 1 Comparative Production Example 2 Award 1.Purified water Balance Balance Balance 2.disodium ID 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 The upper part 7. Surfactant 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.Cetylethylnucleanoate 3.00 3.00 3.00 13.Dimethicone 0.50 0.50 0.50 Chinese 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

The water phase component was prepared by completely dissolving the purified water and 2-6 composition of the said water phase part at 70 degreeC after adding to a mixer. In the same manner, the oil phase component was prepared by completely dissolving at 1O < 0 > C after adding 1-6 components of the oil phase part to another mixer.

While stirring the aqueous phase component at the same temperature, the oil phase component prepared therein was slowly added dropwise and stirred for 5 minutes using a homogenizer to prepare an emulsion. As an additive, 14 and 15 components were added to neutralize and stirred for another 5 minutes.

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

(2) Preparation of Emulsion Composition Dispersed with Lamellar Liquid Crystal Composition

Using the lamellar liquid crystal composition prepared in (1), an emulsion composition was prepared in the composition of Tables 2 and 3.

Water Emulsifying Compositions in Silicones of Examples 1-4 Ingredient (% by weight) Example 1 Example 2 Example 3 Example 4 The upper part 1.cyclopentasiloxane Balance Balance Balance Balance 2.Pig-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 Award 5 purified water 4.00 4.00 4.00 4.00 6.Disodium IDT 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.Lamela liquid crystal composition of Production Example 1 69.83 64.83 59.83 54.83 10. Glycerin - - - - 11. Butylene glycol - - - - additive 12.Phenoxyethanol 0.10 0.10 0.10 0.10 13.flavor Quantity Quantity Quantity Quantity total 100.00 100.00 100.00 100.00

Emulsifying Compositions of Comparative Examples 1 to 5 Ingredient (% by weight) Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 The upper part 1.cyclopentasiloxane Balance Balance Balance Balance Balance 2.Pig-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 Award 5 purified water 43.00 4.00 4.00 4.00 4.00 6.Disodium IDT 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.Lamela liquid crystal composition of Production Example 1 - 10.00 85.00 - - 9-2. Lamellar liquid crystal composition of Comparative Preparation Example 1 - - - 59.83 - 9-3. Lamellar liquid crystal composition of Comparative Preparation Example 2 - - - - 59.83 10. Glycerin 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 agents Quantity Quantity Quantity Quantity Quantity total 100.00 100.00 100.00 100.00 100.00

After adding 1-4 compositions of the said oil phase part to a mixer, it melt | dissolved completely at 70 degreeC, and prepared the oil phase component. In the same manner, an oil phase component was prepared by completely dissolving the composition of 5 to 11 in the purified water of the water phase part in another mixer at 70 ° C.

While stirring the oil phase component at the same temperature, the water phase component prepared therein was slowly added dropwise and stirred for 5 minutes using a homogenizer to prepare an emulsion. To this was added an additive, neutralized by adding 12 and 13 components and stirred for another 5 minutes.

After stirring, the temperature of the mixer was lowered to 30 ° C. to prepare an emulsion composition.

Experimental Example 1

In order to confirm the structure of the lamellar liquid crystal composition and the emulsion composition prepared in Example 1 was measured using a polarizing microscope.

2 is a polarized image of the lamellar liquid crystal composition prepared in Example 1, it was confirmed that the size of the inner particles is very regular and there is a liquid crystal structure between the particles.

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

Test Example 1 Skin Moisturizing Effect

In order to examine the skin moisturizing effect of the lamellar liquid crystal composition and the emulsion composition including the same according to the present invention, the lamellar liquid crystal composition prepared in Example 1 (1), and the emulsion composition prepared in Examples 1 to 4, Comparative Example It was performed as follows using the emulsion composition prepared in 1-4.

In order to find out the moisturizing sustainability of the skin during one application, 15 males and females in their 20s and 30s who do not have skin diseases should apply each emulsifying composition to the inner side of their lower arm, and then use skincon The amount of moisture was measured.

After cleaning the test site, mark the location and place the skin cone on the skin constantly to measure the value (initial value). At this time, in order to reduce the error from the surrounding environment, maintain the constant temperature (20 ± 2 ℃) and constant humidity (50 ± 2%), and measure the value three times each and use the average value. The test substance and the target substance were applied once and measured after 2 hours and 6 hours, and the change in moisture retention of the skin with time was observed. Each test value was expressed as the average value of the test results, the results are shown in Figure 4 below.

4 is a graph showing skin moisture retention of the lamellar liquid crystal composition of Preparation Example 1, the emulsion composition of Examples 1 to 4, and the emulsion composition of Comparative Examples 1 to 5;

As shown in Figure 4, in the case of a lamellar liquid crystal composition and a composition comprising the same according to the present invention it can be seen that the moisture content of the skin is superior to the composition of the comparative example.

(Test Example 2) Feeling sensory test

In order to examine the feeling of use of the lamellar liquid crystal composition and the emulsion composition including the same according to the present invention, the emulsion composition prepared in Example 2 and Comparative Example 1 was performed as follows.

The emulsified compositions of Example 2 and Comparative Example 1 were used for 15 female subjects who were suitable for the purpose of this test, and the evaluation evaluated skin improvement effect and usability of the product through a questionnaire evaluation by the subject. The subjects were asked to complete a survey on a scale of 1 for Very High Satisfaction and 5 Very Low Satisfaction. The results are shown in Table 4.

Drifting Brittle absorptivity Sticky A sense of closeness Moist Softness No irritation 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 better feeling, that is, a fresh feeling than the composition of Comparative Example 1 in the sticky item.

Test Example 3 Skin Improvement Effect Sensory Test

In order to determine the improvement effect on the dry skin of the lamellar liquid crystal composition and the emulsion composition comprising the same according to the present invention, it was performed as follows using the emulsion composition prepared in Examples 1 to 4 and Comparative Examples 1 to 5.

Subjects of 15 women were asked to complete a questionnaire about skin improvement effects, and subjective efficacy evaluation was also performed. The results are shown in Table 5 below.

<Judging criteria>

(Double-circle): It is judged that more than 10 of 15 people have the effect of moisturizing, reducing dead skin cells, and smoothing skin texture.

O: It is judged that 8 or more of 15 people have an effect of moisturizing, reducing dead skin cells and smoothing skin texture.

(Triangle | delta): It is judged that 5 or more of 15 people have the effect of moisturizing, exfoliation, and smoothing skin texture.

X: It is judged that less than 5 out of 15 have the effect of moisturizing, exfoliation, and smoothing skin texture.

Sample respondents Moist Keratin loss 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, in the case of the composition comprising a lamellar liquid crystal composition according to the present invention it can be seen that the skin improvement effect is superior to the composition of the comparative example.

Test Example 4 Angular Mass Reduction Test

In order to examine the effect of reducing the angular mass of the water emulsion composition in the silicone according to the present invention, the emulsion composition prepared in Examples 1 to 4 and the emulsion composition prepared in Comparative Examples 1 to 5 were performed as follows.

Thirteen women aged 29-39 who had no skin disease were used twice a day (evening) for two weeks, and the corneal improvement effect was measured by measuring the angular mass before and after using the product. The results obtained are shown in Table 6 and FIG. 5.

Angular mass (%) Before application 1 week later 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 Figure 5, in the case of the water emulsion composition of the silicone according to the present invention it can be seen that the skin keratin reduction effect is superior to the composition of the comparative example.

Figure 6 is a graph showing the skin keratin improvement effect of the emulsion composition prepared in Example 2.

For the improvement of skin keratin effect, 'Tape Striping Method' was used to measure the number of keratin in the unit range after peeling off the skin keratin using tape. In this case, the smaller the number of pixels, the smaller the angular mass, and it is determined that the skin is improved.

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

( Test Example  5) Stability  evaluation

The lamellar liquid crystal composition of Preparation Example 1 prepared as described above, the emulsion compositions of Examples 1 to 4, and the emulsion compositions of Comparative Examples 1 to 5 were each stored in an oven at 25 ° C., 5 ° C., cycle, and 45 ° C. for one month. Phase stability was visually observed. In this case, 'cycle' means a condition of circulating for 6 hours at 25 ° C, 5 ° C, cycle, and 45 ° C.

45 ℃ cycle 25 ℃ 5 ℃ Preparation Example 1 △ △ Ο Ο Example 1 Ο Ο Ο Ο Example 2 Ο Ο Ο Ο Example 3 Ο Ο Ο Ο Example 4 Ο Ο Ο Ο Comparative Example 1 Ο Ο Ο Ο Comparative Example 2 Ο Ο Ο Ο Comparative Example 3 × × △ △ Comparative Example 4 Ο Ο Ο Ο Comparative Example 5 Ο Ο Ο Ο

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 high and low temperatures.

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

The water type emulsion composition in silicone according to the present invention can be applied as a cosmetic composition for skin moisturizing and keratin care.

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

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

3A to 3D are polarized images of the emulsion composition prepared in Examples 1 to 4;

4 is a graph showing skin moisture retention of the lamellar liquid crystal composition of Preparation Example 1, the emulsion composition of Examples 1 to 4, and the emulsion composition of Comparative Examples 1 to 5;

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

Figure 6 is a graph showing the skin keratin improvement effect of the emulsion composition prepared in Example 2.

Claims (14)

a) an oil phase comprising a silicone oil and a silicone surfactant; And b) A water (W / S) type emulsion composition in silicon, which is dispersed in the oil phase part and includes an aqueous phase in which a lamellar liquid crystal is dispersed therein. According to claim 1, wherein the water type emulsion composition of the silicone to satisfy 100% by weight, a) iii) silicone oil: balance, and    Ii) silicone surfactant: oil phase comprising 0.5 to 10% by weight, b) iii) lamellar liquid crystal composition: 50 to 80% by weight, and    Ii) Water: A water type emulsion composition in silicone, consisting of an aqueous phase comprising 1 to 10% by weight. The method of claim 1, wherein the silicone oil is dimethicone, cyclomethicone, polydimethylsiloxane, methylphenylpolysiloxane, methylcyclopolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, tetradecamethyl Water type emulsion composition in silicone, which is one kind selected from the group consisting of hexasiloxane, octamethyltrisiloxane, and mixtures thereof. The method of claim 1, wherein the silicone surfactant is Fiji-10 dimethicone, Sechil Fiji / Fiji-10 / 1 dimethicone, Polyoxyethylene methylpolysiloxane copolymer, Poly (oxyethyleneoxypropylene) methyl polysiloxane copolymer And polyoxypropylene methylpolysiloxane copolymer, and mixtures thereof. The liquid crystal composition of claim 1, wherein the lamellar liquid crystal composition satisfies 100% by weight in total. An oil phase portion containing 1 to 10% by weight of a higher aliphatic alcohol, 5 to 30% by weight of oil, and 2 to 10% by weight of a lamellar liquid crystal-forming surfactant composite, and Water: A water type emulsified composition in silicone, consisting of an aqueous phase containing a balance. The method of claim 5, wherein the higher aliphatic alcohol is myristyl alcohol, lauroyl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, arachidyl alcohol, behenyl alcohol, batyl alcohol, lauric acid, myristic acid Water type emulsion composition in silicone comprising one selected from the group consisting of, palmitic acid, stearic acid, isostearic acid, arachidic acid, behenic acid and mixtures thereof. The oil according to claim 5, wherein the oil is hydrogenated polyisobutin, ethylhexyl palmitate, squalene, macadamia nut oil, olive oil, meadowfoam seed oil, refined grape seed oil, caprylic / capric triglyceride, Water type emulsion composition in silicone comprising one selected from the group consisting of cyclomethicone, and mixtures thereof. The method according to claim 5, wherein the lamellar liquid crystal for forming a surfactant complex comprises a composite consisting of 10 to 40% by weight surfactant, 50 to 80% by weight higher aliphatic alcohol, and 1 to 10% by weight oil to satisfy 100% by weight The water type emulsion composition in silicone. The method of claim 8, wherein the surfactant is selected from Fiji-10 Dimethicone, Sechil Fiji / Fiji-10 / 1 Dimethicone, Polyoxyethylene methylpolysiloxane copolymer, Poly (oxyethyleneoxypropylene) methyl Polysiloxane copolymer, Water type emulsion composition in silicone, which is one selected from the group consisting of polyoxypropylene methylpolysiloxane copolymer, and mixtures thereof The method of claim 8, wherein the higher aliphatic alcohol is myristyl alcohol, lauroyl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, arachidyl alcohol, behenyl alcohol, batyl alcohol, lauric acid, myristic acid Water type emulsion composition in silicone comprising one selected from the group consisting of, palmitic acid, stearic acid, isostearic acid, arachidic acid, behenic acid and mixtures thereof. The method of claim 8, wherein the oil is hydrogenated polyisobutin, ethylhexyl palmitate, squalene, macadamia nut oil, olive oil, meadowfoam seed oil, refined grape seed oil, caprylic / capric triglyceride, cyclo Water type emulsified composition in silicone comprising one type selected from the group consisting of methicone, and mixtures thereof. The water type emulsion composition of claim 1 further comprising an additive comprising an ultraviolet absorber, antioxidant, whitening agent, preservative, moisturizer, thickener, neutralizer and pH adjuster. A cosmetic composition comprising a water type emulsion composition in silicone according to any one of claims 1 to 12. The method of claim 13, wherein the cosmetic composition is a nutrition cream, massage cream, hand cream, eye cream, body cream, tanning cream, cleansing cream, makeup base cream, foundation cream, control cream, sun cream, essence, supple lotion, convergence Cosmetic composition is formulated in one formulation selected from a lotion, nutrition lotion, nutrition cream, or a pack.

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