KR100537678B1 - Multi-silicone emulsion and cosmetic tissues containing the same - Google Patents

Abstract

The present invention relates to a W ₁ / Si / W ₂ (Water in oil in Water) type multi-silicon emulsion containing a large amount of volatile silicone oil and a cosmetic tissue impregnated with the nonwoven fabric, it is excellent in stability over time as well as high temperature stability It has excellent moisturizing power and has excellent cleansing power for makeup products and sunscreen products, which are water / silicone emulsions.

Description

Multi-silicone emulsion of Ｗ₁ / シ / Ｗ₂ type and cosmetic tissue containing same {Multi-silicone emulsion and cosmetic tissues containing the same}

The present invention relates to a W ₁ / Si / W ₂ type multi-silicone emulsion and a cosmetic tissue comprising the same, more specifically W ₁ / Si containing a large amount of volatile silicone oil excellent in stability over time, high temperature stability and excellent moisture retention / W type ₂ multi-silicon emulsion and cosmetic tissue comprising the same.

Conventionally, various emulsion cosmetics such as creams and lotions have been used to protect the skin and maintain a healthy state. The quality characteristics of these emulsion type cosmetic creams and lotions vary. However, the stability before opening and after opening to fully exhibit the effect of the useful ingredients contained in the cosmetics is not complete, and the use of emulsifying stabilizers to improve the stability, which is the biggest factor in the quality of cosmetics is not good There is a problem.

Emulsion Cosmetics include oil in water (W / O) emulsions and water in oil (O / W) emulsions. Cosmetic creams based on O / W type emulsions have good spreading properties, while the emulsifying effect and water resistance are somewhat lower than those of W / O type emulsions. Conversely, W / O type emulsions have good spreadability and O / W type. There is a problem that is difficult to obtain a fresh feeling such as emulsion. Therefore, research on multiple emulsions having the advantages of the W / O type emulsion and the O / W type emulsion at the same time is being actively conducted, and the prospects are emerging as a bright technology field. These multiple emulsion among (hereinafter, W ₁ / O / W ₂ type), especially the primary W ₁ / O type emulsion to which Water in Oil in Water dispersed in the Water W ₂ outermost trauma comprises a lot of emulsified studies and Representative examples thereof include U.S. Patent No. 3399263, British Patent No. 1225867, Japanese Patent Application No. 52-134029, Japanese Patent Application No. 53-31578, Japanese Patent Application No. 57-15829, Japanese Patent Application No. 58-183611, Japan Japanese Patent Laid-Open No. 59-80326, Japanese Patent Laid-Open No. 59-127646, Japanese Patent Laid-Open No. 62-2561, Cosmetic & Toiletries (Vol 101, 1986, page 101; Vol 105, 1990, page 65; Vol 106, 1991, page 97; Vol 111, 1996, page 39; Vol 111, 1996, page 53; Vol 112, 1997, page 85). In addition, there is an oil in water in oil (hereinafter referred to as O ₁ / W / O ₂ ) emulsion in which a primary O ₁ / W type emulsion is dispersed in an outermost oil phase O ₂ .

In the case of W ₁ / O / W type ₂ emulsions of the above-mentioned multiple emulsions, the encapsulated oils by adding an active ingredient to the aqueous phase of the primary W ₁ / O type emulsions are dispersed in the water phase. It has the advantage that it can deliver the lasting effect of the active ingredient when applied to it, and it can be delivered by differently applying the active ingredient to the aqueous phase of the primary W ₁ / O emulsion and the active ingredient in the external phase. It has the advantage of being able to deliver several active ingredients simultaneously in one emulsion. In addition, the oil phase has the advantage of containing an oil-soluble active ingredient. Likewise, in the case of O ₁ / W / O ₂ emulsions, various active ingredients such as W ₁ / O / W ₂ emulsions can be simultaneously delivered. Because of this, multiple emulsions have been used in the pharmaceutical industry in sustained release formulations that slowly deliver effective active ingredients to the skin.

However, despite these advantages, both W ₁ / O / W ₂ emulsions and O ₁ / W / O ₂ emulsions have not been widely used in cosmetics and pharmaceuticals because of poor stability over time or high temperature. The reason for the poor stability is that the first phase between the inner and the outer water phase is separated into a thin liquid film. Therefore, the water film is destroyed due to the osmotic pressure caused by the difference in concentration and electrolysis of the outer and inner water phases. It moves to the outer water phase and loses the function of W ₁ / O / W ₂ emulsion cosmetics, and secondly, it is larger than normal single emulsion particles (0.5 to 10 ㎛) (10 to 15 ㎛) and is uneven, so that particles are aggregated or It is easy to coalesce and separate the system, and the lipophilic surfactant which forms the third W ₁ / O type emulsion is used in the hydrophilic surfactant used in the external water when preparing the two step W ₁ / O / W type ₂ emulsion. There are many problems in storage stability, such as solubilization, the entire system finally loses uniformity.

In order to improve the storage stability of the cosmetics in the form of W ₁ / O / W ₂ emulsions, the water-soluble thickener (gelling agent) in the water or external water was used, and the oil-soluble thickener was used to improve the storage stability. Although it is disclosed in Japanese Patent Laid-Open No. 63-33311, satisfactory results have not been obtained. In Cosmetic & Toiletries, Vol. 110 (1995), polyvinylpyrrolidone (PVP) was introduced to W ₁ / O / W ₂ emulsions to improve stability, but the effect on stability was minimal. , Ind. 46 Nr.90 (1984) selected a surfactant that is stable to W ₁ / O / W ₂ , O ₁ / W / O ₂ emulsions, but this also provides stability over time and temperature The result was not satisfied.

On the other hand, silicone oils used in the form of oil in cosmetics in the form of emulsions are generally very light due to their elastic and three-dimensional structural properties, and are excellent in usability such as malleability and spreadability, skin safety, water resistance and softening effect. Can bring benefits. Among these, volatile silicone oils with ring structure are excellent solvents for cleansing makeup residues and oils, and they are particularly beneficial because they are soft and not sticky to the skin. In the case of the multi-emulsifier to which silicone oil is added, the above-described stability and high temperature stability are particularly inferior, and thus it is difficult to commercialize due to difficulty in use.

Cosmetics & Toiletries, Vol., Announced the creation of a W ₁ / O / W ₂ emulsion containing silicone oil. 105 (1990) succeeded in stabilizing the formulation, but the oil used in this formulation, as in the formulation of this paper, uses all or a large portion of the hydrocarbon oil, liquid paraffin and isoparaffin, in the primary W ₁ / O emulsion. It has been used, and thus there is a drawback of not being able to expect the effects such as softness and softness that silicone oil brings.

U.S. Patent No. 96-5589177, as an oil was used in a large amount of volatile silicone oil with low primary W ₁ / O to the surfactant and the trauma of the award of the emulsion polymer compared to the primary W ₁ / O emulsion is relatively Molecular Weight HLB Is a rinse off W ₁ / O / W ₂ emulsion using a surfactant of 14 or more, but when the volatile silicone oil is 5 parts by weight or more based on 100 parts by weight of W ₁ / O / W ₂ emulsion, We have not secured the stability that we need to have. In addition, Korean Patent Application Publication No. 1999-0046944 describes W ₁ / O / W ₂ emulsions related to lotions and creams containing a large amount of volatile silicone oils, but failed to secure stability of low viscosity multi-emulsions.

Therefore, the composition and its preparation for Water in Silicon Oil in Water (hereinafter referred to as W ₁ / Si / W ₂ ), which is a stabilized multi-silicon emulsion that is free of liquid paraffin and isoparaffin and is made of only silicone oil, is commercialized. The emergence of the method has been required.

Therefore, the technical problem to be achieved by the present invention is a water in Silicon Oil in Water (hereinafter referred to as W ₁ / Si / W ₂ ) composition and a cosmetic containing the same, a multi-silicon emulsion containing a large amount of volatile silicone oil and excellent stability over time and high temperature stability To provide a tissue for the dragon.

In order to achieve the above object, the first aspect of the present invention includes 5 to 40% by weight of a volatile silicone oil and 1 to 40% by weight of a silicone-based emulsifier of Chemical Formula 1 based on the total weight of W ₁ / Si / W ₂ emulsions. W ₁ / Si / W ₂ (water in oil in water type multiple silicone emulsions are provided:

[Formula 1]

In Chemical Formula 1

R is an alkyl group having 12 to 24 carbon atoms,

R ¹ is an alkyl group having 12 to 24 carbon atoms,

x is an integer from 1 to 100,

y is an integer from 1 to 200,

m is an integer from 16 to 20,

n is an integer from 16 to 20.

According to one embodiment of the invention, the volatile silicone oil may be cyclomethicone.

According to another embodiment of the present invention, the W ₁ phase is at least one moisturizer selected from the group consisting of glycerin, propylene glycol, butylene glycol, dipropylene glycol, sodium PCA and sodium hyaluronate. It may include.

According to another embodiment of the invention the W ₂ phase may comprise a nonionic surfactant having an HLB of 14 or more.

In a second aspect of the invention W ₁ / Si / W ₂ emulsion W to O contained in the usual silicone type emulsifier 1 to 40 wt% of the total weight of the volatile silicone oil of 5 to 40% and the above formula (1) by weight, based on ₁ / Si / W ₂ (Water in Silicon oil in water) type multi-silicon emulsion provides cosmetic tissue impregnated with nonwoven fabric.

According to one embodiment of the invention, the multi-silicone emulsion can be impregnated in an amount of 100 to 500% by weight of the nonwoven fabric.

According to another embodiment of the present invention, the nonwoven fabric includes a cotton nonwoven fabric, a bisco rayon nonwoven fabric, or a mixed nonwoven fabric in a ratio of 5: 5 to 9: 1 by weight of any one of polyethylene terephthalate, polypropylene, and nylon and bisco rayon. Can be.

The present invention also provides a method for stabilizing a water in oil in water (W ₁ / Si / W ₂ type multiple silicone emulsion) characterized by the following steps.

a) Stirring 1-50% by weight of W ₁ phase, 5-40% by weight of volatile silicone oil and 1-40% by weight of silicone-based emulsifier, consisting of a moisturizer, a water-soluble active ingredient and water, based on the total weight of W ₁ / Si / W ₂ emulsion Preparing a W ₁ / Si emulsion;

b) dispersing the prepared W ₁ / Si emulsion on W ₂ to 5 to 40% by weight of the volatile silicone oil and 1 to 40% by weight of the silicone-based emulsifier of Formula 1 to the total weight of W ₁ / Si / W ₂ emulsion Preparing a W ₁ / Si / W ₂ (water in oil in water) type polysilicon emulsion including the oil phase;

c) impregnating the prepared W ₁ / Si / W ₂ (Water in oil in water) type polysilicon emulsion in an amount of 100 to 500% by weight of the nonwoven fabric;

 [Formula 1]

In Chemical Formula 1

R is an alkyl group having 12 to 24 carbon atoms,

R ¹ is an alkyl group having 12 to 24 carbon atoms,

x is an integer from 1 to 100,

y is an integer from 1 to 200,

m is an integer from 16 to 20,

n is an integer from 16 to 20.

Hereinafter, the present invention will be described in more detail.

Multiple silicon according to the present invention emulsions are W ₁ / Si / W ₂ emulsion to the total of 5 to 40% by weight volatile silicone oil based on the weight o the silicone-based emulsifier 1 to 40% by weight of formula 1 W ₁ / Si containing a daily / W type ₂ multi-silicon emulsion:

[Formula 1]

In Chemical Formula 1

R is an alkyl group having 12 to 24 carbon atoms,

R ¹ is an alkyl group having 12 to 24 carbon atoms,

x is an integer from 1 to 100,

y is an integer from 1 to 200,

m is an integer from 16 to 20,

n is an integer from 16 to 20.

Cyclomethicone may be used as the volatile silicone oil used in the multiple silicone emulsion according to the present invention. Specific examples of cyclomethicone may be selected from the group consisting of hexamethylcyclotrisiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethyl cyclohexasiloxane, and mixtures thereof. The structural formula of some of the above is as follows:

In the multiple silicone emulsion according to the present invention, the volatile silicone oil may be included in an amount of 5 to 40 wt%, more preferably 10 to 25 wt%, based on the total weight of W ₁ / Si / W ₂ emulsion. Less than 5% by weight, the desired moisturizing effect and the cleansing effect of the make-up and sunscreen is insignificant, while more than 40% by weight it is difficult to maintain a multi-emulsion form.

The silicone-based emulsifier of Formula 1 according to the present invention is particularly effective in stably maintaining volatile silicone oil on the primary W ₁ / Si emulsion as compared to other silicone-based emulsifiers. As the silicone-based emulsifier of Formula 1, Dow Corning 3225C Fomulation Aid or Dow Corning 5225C Fomulation Aid manufactured by Dow Corning Corporation may be used, and PEG / PPG-18 / 18 dimethicone is preferable.

The silicone-based emulsifier according to Chemical Formula 1 may be used in an amount of 1 to 40% by weight, more preferably 10 to 25% by weight, based on the total weight of W ₁ / Si / W ₂ emulsion. When less than 1% by weight, the desired surfactant effect is insignificant, and when more than 40% by weight, the W ₁ / Si / W ₂ emulsion is not formed and the viscosity is high, so that impregnation of the nonwoven fabric is not easy.

The multi-silicone emulsion according to the present invention may further include a moisturizer, a water-soluble active ingredient, perfume, and purified water in the primary water phase (W ₁ ) in addition to the volatile silicone oil and the silicone-based emulsifier.

That is, the primary W ₁ / Si emulsion for preparing a W ₁ / Si / W ₂ type multi-silicon emulsion according to the present invention, based on the total weight of the W ₁ / Si / W ₂ emulsion, as a moisturizer, a water-soluble active active ingredient and water 1 to 50% by weight of the W ₁ phase; And it may include 1 to 50% by weight of Si phase consisting of 5 to 40% by weight of volatile silicone oil and 1 to 40% by weight of a silicone-based emulsifier. The external water phase (W ₂ ) in which the primary W ₁ / Si emulsion is dispersed may include a nonionic surfactant, a water-soluble polymer, a water-soluble active active ingredient, and water of HLB 14 or more.

The moisturizing agent is a polyol commonly used in cosmetics, such as glycerin, butylene glycol, propylene glycol, dipropylene glycol, sodium PCA, sodium hyaluronate, etc. It can be used alone or in combination in the aqueous phase of the primary W / Si emulsion in an amount of 0.1 to 20% by weight, preferably 5 to 10% by weight of the total weight of the primary W ₁ / Si emulsion.

The nonionic surfactant of HLB 14 or more included in the secondary W ₂ phase is not limited to polysorbate 20, PEG-40 stearate, nonoxynol-12, and the like, and W alone or in combination thereof. _It is used in combination with the aqueous phase of the secondary W ₂ in an amount of 0.1 to 10% by weight, preferably 0.2 to 5.0% by weight of the total weight of the ₁ / Si / W ₂ polysulfide.

In addition, the water-soluble polymer, water-soluble active ingredient and water contained in the secondary W ₂ phase may be used in combination with 30 to 80% by weight of the total weight of W ₁ / Si / W ₂ emulsion on the W ₂ phase.

The water-soluble polymers include polyacrylic acids or sugar-derived polymers. Examples of water-soluble active ingredients include vitamin C and its derivatives, vitamin A and its derivatives, adenosine and arbutin.

The W ₁ / Si / W ₂ multi-silicon emulsion as described above is excellent in aging stability, excellent in high temperature stability and light and moisturizing by using only volatile silicone oil as an oil phase component.

Such W ₁ / Si / W ₂ multiple silicon emulsion may be prepared according to a conventional multiple emulsion production method. That is, first, the W ₁ phase is added to the Si phase and stirred to form a primary W ₁ / Si emulsion, which is then dispersed in a W ₂ phase to prepare a multi-emulsion.

In addition, in the present invention, by impregnating the W ₁ / Si / W ₂ multi-silicon emulsion as described above in the non-woven fabric it is possible to maintain a more stable W ₁ / Si / W ₂ multi-silicon emulsion.

The multiple silicone emulsions according to the invention are impregnated with 100 to 500% by weight of the nonwovens.

The nonwoven fabric used to obtain the cosmetic tissue according to the present invention includes a cotton nonwoven fabric, a biscorayon nonwoven fabric, or a mixed nonwoven fabric of 5: 5 to 9: 1 weight ratio of any one of polyethylene terephthalate, polypropylene and nylon. Can be used. Among them, cotton nonwoven fabric is most preferred in terms of irritation to skin.

The cosmetic tissue obtained as described above may be inserted into a resin sealing pack, sealed, and commercialized and stored.

The present invention will be described in more detail with reference to the following examples. The following examples illustrate the invention and the scope of the invention is not limited to these examples.

Example

Preparation of Multiple Silicone Emulsions

Example 1

First, to prepare the W ₁ / Si emulsion by putting the W ₁ phase mixed with the raw materials 5 and 6 on the oil (O) mixed with the raw materials 1 to 4 of Table 1 to make the primary W ₁ / Si emulsion, raw materials W ₂ phases 7 to 13 were mixed into 1 to 6 and stirred. Mix to make the primary W ₁ / Si emulsion and then stirred for 20 minutes at 100 to 1,000 rpm using a stirrer. The secondary W ₂ phase heated to 60 ° C. was added to the primary W ₁ / Si emulsion obtained above, and stirred at 800 rpm for 10 minutes with a stirrer.

First, to prepare a W ₁ / Si emulsion by putting the W ₁ phase mixed with the raw material 5 to 9 on the oil (O) mixed with the raw materials 1 to 4 of Table 1 to make a primary W ₁ / Si emulsion, raw material 10 to 16 mixed W ₂ phases were put in 1 to 9 and stirred. Mix to make the primary W ₁ / Si emulsion and then stirred for 20 minutes at 100 to 1,000 rpm using a stirrer. The secondary W ₂ phase heated to 60 ° C. was added to the primary W ₁ / Si emulsion obtained above, and stirred at 800 rpm for 10 minutes with a stirrer.

Example 2

A polysilicon emulsion was prepared in the same manner as in Example 1 except that the cyclopentasiloxane content was 20% by weight based on the total weight of the primary W ₁ / Si emulsion and 20% by weight of the DC 3225C, a silicone-based emulsifier. .

The polysilicon emulsion was prepared in the same manner as in Example 1 except that the cyclopentasiloxane content was 20% by weight based on the total weight of the W ₁ / Si / W ₂ emulsion, and 20% by weight of the content of the silicone-based emulsifier, DC 3225C. Prepared.

A multisilicon emulsion was prepared in the same manner as in Example 1 except that the cyclopentasiloxane content was 25% by weight relative to the total weight of the primary W ₁ / Si emulsion and the content of the silicone-based emulsifier DC 3225 was 25% by weight. It was.

The polysilicon emulsion was prepared in the same manner as in Example 1 except that the cyclopentasiloxane content was 25% by weight based on the total weight of the W ₁ / Si / W ₂ emulsion and the content of the silicone-based emulsifier DC 3225 was 25% by weight. Was prepared.

15% by weight instead of 10% by weight of cyclopentasiloxane, 2.0% by weight of ABIL EM-90 instead of DC3225 was used in the same manner as in Example 1 except for the multiple emulsion was prepared.

Comparative Example 2

A multi-emulsion was prepared in the same manner as in Example 1 except that 20 wt% of cyclopentasiloxane was used instead of 10 wt%, 2.0 wt% of ABIL EM-90 and KF-60172.0 wt% instead of DC3225. Prepared.

Comparative Example 3

Multiple emulsions in the same manner as in Example 1, except that according to the composition of Table 1, such as 20% by weight instead of 10% by weight of cyclopentasiloxane, 2.0% by weight of ABIL EM-90 and 3.0% by weight of KF-6017 instead of DC3225 Was prepared.

TABLE 1

Myrj 52S: PEG-40-stearate made by UNIQEMA

Tween 20: made of UNIQEMA, polysorbate-20

ABIL EM-90: Cetyldimethicone copolyol made by DEGUSSA

KF-6017: Made in ShinEtsu, Dimethylsiloxane (Polyoxyethylene) siloxane Copolymer

[Examples 4 to 6 and Comparative Examples 4 to 6]

Each of the polysilicon emulsions prepared in Examples 1 to 3 and Comparative Examples 1 to 3 was used as cotton 5: nonwoven fabric, biscorayon nonwoven fabric, 5: 5, 7: 3, 8: 2, 9: 1 of biscorayon and polypropylene. Each of the mixed nonwoven fabrics in the weight ratio was impregnated with four times the weight (g) of the nonwoven fabric (g), and then placed in an aluminum pouch and sealed.

The cosmetic tissues impregnated in the nonwoven fabric all maintained the form of W ₁ / Si / W ₂ emulsion.

Experimental Example 1 Evaluation of Stability

W ₁ / Si / W ₂ emulsions prepared in Examples 1 to 3 and Comparative Examples 1 to 3, respectively, were left in a thermostat and the stability was confirmed through an OLYMPUS BX41 microscope. The stability was determined by maintaining the temperature of -5 ℃, 4 ℃, 37 ℃, 45 ℃, respectively, and the stability was determined in a cycle chamber that changes from 40 ℃ to -5 ℃ every 12 hours, the results are shown in Table 2 below It was.

Table 2 Evaluation of stability of W ₁ / Si / W ₂ emulsion

×: unstable in emulsion within 1 month in thermostat

△: unstable emulsion state after standing in the thermostat for more than 1 month

○: When the emulsion is stable after being left in the thermostat for more than 1 month.

◎: When the emulsion is stable after standing in the thermostat for more than 2 months

As can be seen in Table 2, it can be seen that the multi-silicon emulsion according to the present invention has excellent stability at high temperatures and stability even when the temperature is changed for a certain time.

In addition, the tissues of Examples 4 to 6 and Comparative Examples 4 to 6 were left in the respective thermostats, and after a certain period of time, the W ₁ / Si / W ₂ emulsion was extracted from the cosmetic tissues to stabilize the stability of the OLYMPUS BX41. It was confirmed through a microscope. Stability was determined by maintaining the temperature of -5 ℃, 4 ℃, 37 ℃, 45 ℃, the stability was determined in a cycle chamber that changes from 40 ℃ to -5 ℃ every 12 hours, the results are shown in Table 3 below. .

Table 3 Results of Stability of Cosmetic Tissue

As shown in the results of the stability evaluation of Table 3, the cosmetic tissues of Examples 4 to 6 in the present invention were confirmed to have excellent high temperature stability when compared to the cosmetic tissues of Comparative Examples 4 to 6, and a cotton nonwoven fabric and Biscorayon nonwovens showed the best stability results, and in the case of the mixed nonwovens of biscorrayon and PP, nonwoven fabrics with less PP content showed better stability.

Experimental Example 2 Cleansing Effect

In order to examine the cleansing effect of the cosmetic tissues impregnated with the multiple silicone emulsions of Examples 4 to 6 and Comparative Examples 4 to 6 of the present invention, 30 subjects each applied foundation, lipstick, and mascara to each upper arm. The cosmetic tissues of Examples 4 to 6 were applied to the right upper arm and the cosmetic tissues of Comparative Examples 4 to 6 were applied to the upper left arm to examine the cleansing effect. The method of applying the product to the upper arm is to mark the test part with a marking pen on the upper arm by using a specially made 1/2 inch x 1 inch rectangular mold, and then use foundation, lipstick, mascara as a color product. Apply uniformly and dry for 30 minutes. While drying, the test site was photographed using a digital camera Canon PowerShot S30 (Canon, Japan). After 30 minutes, the cosmetic tissues of Examples 4 to 6 and Comparative Examples 4 to 6 were applied to the test site on the right and left upper arms, followed by cleansing using the same strength and using Kim-Wipe. The test spot was gently wiped without force. Then, the test site was photographed using a digital camera Canon PowerShot S30 (Canon, Japan). The cleansing effect of the subject was evaluated according to the degree, and the results are shown in Table 4 below.

[Table 4] Cleansing force test results

Legend

0: no effect 1: no effect or insignificant 2: insignificant 3: insignificant or moderate 4: normal 5: moderate or excellent 6: excellent 7: very good

As shown in the results of the cleansing effect of Table 4, the cosmetic tissues of Examples 4 to 6 according to the present invention were able to confirm that the cleansing force is much superior to the cosmetic tissues of Comparative Examples 4 to 6, and the cotton nonwoven fabric And biscorrayon non-woven fabrics showed the best cleansing effect, it was confirmed that the less the non-woven fabric of PP content, the better the cleansing effect.

Experimental Example 3 Safety Evaluation

In order to determine the safety of the cosmetic tissues of Examples 4 to 6 and the cosmetic tissues of Comparative Examples 4 to 6 of the present invention, 15 test subjects were treated with the appropriate concentrations of each test substance in Fin chambers. Adhesion to the inner region of the upper arm was performed to determine the degree of stimulation after 24 hours and after 48 hours. The age distribution of the subjects ranged from 21 to 31 years, with an average age of 27 years. Skin reactions were classified according to the criteria of the International Contact Dermatitis Research Group (ICDRG). After the average score was calculated according to the average skin response calculation formula, the presence or absence of irritation was evaluated according to the patch test result determination table, and the results are shown in Table 5 below.

[Table 5] Safety test results

  No irritation: 0.00 ~ 0.75, unirritating: 0.76 ~ 2.00, light stimulation: 2.01 ~ 3.75

  Medium stimulation: 3.76 ~ 6.25, strong stimulation: 6.26 ~ 12.5

As shown in the safety results of Table 5, the cosmetic tissues of Examples 4 to 6 according to the present invention were confirmed to have less irritation as compared to the cosmetic tissues of Comparative Examples 4 to 6.

Experimental Example 4 Evaluation of Moisturizing Power

In order to find out the moisturizing power of the cosmetic tissues of Examples 4 to 6 and Comparative Examples 4 to 6 of the present invention, after 20 adult men and women were rested in a constant temperature and humidity room for 30 minutes or more, After setting the 4ⅹ4㎠ compartment, apply the product to the thickness of 2μg / ㎠ and measure the skin moisture content five times consecutively with a corneometer (Corneometer (Corneometer CM820, Courage & Khazaka, Germany)) over time. Was determined as a measurement, and the results are shown in Table 6.

[Table 6] Moisturizing Test Results

As shown in the moisturizing power evaluation results of Table 6, the cosmetic tissues of Examples 4 to 6 in the present invention was confirmed to be much superior to the moisturizing power compared to the cosmetic tissue of Comparative Examples 4 to 6.

As described above, the W ₁ / Si / W ₂ multi-silicon emulsion according to the present invention is excellent in stability while containing a large amount of volatile silicone oil, the cosmetic tissue impregnated in the nonwoven fabric is further improved stability. In addition, it contains a large amount of volatile silicone oil, which is not only light, but also has excellent cleansing power for makeup products and UV-blocking products, which are indelible W / Si type emulsions. It is effective in giving skin moisturizing effect.

1 is a micrograph of a multisulfide according to the present invention.

Claims (17)

delete delete delete delete delete delete delete delete delete a) the first water phase (O) in the oil phase (Si) consisting of 10 to 25% by weight of cyclomethicone and 10 to 25% by weight of the silicone-based emulsifier of Formula 1 as a volatile silicone oil based on the total weight of W ₁ / Si / W ₂ emulsion W ₁ ) adding 1 to 50% by weight, followed by stirring to prepare a W ₁ / Si emulsion; And b) dispersing the prepared W ₁ / Si emulsion in an external aqueous phase (W ₂ ); Method for producing a W ₁ / Si / W ₂ type multiple silicone emulsion comprising a. [Formula 1] (Wherein R is an alkyl group having 12 to 24 carbon atoms, R ¹ is an alkyl group having 12 to 24 carbon atoms, x is an integer of 1 to 100, y is an integer of 1 to 200, m is an integer of 16 to 20) , n is an integer from 16 to 20.) The method of claim 10, The cyclomethicone is selected from the group consisting of hexamethylcyclotrisiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethyl cyclohexasiloxane, and mixtures thereof W ₁ / Si / W Method for preparing type ₂ multi-silicone emulsion. The method of claim 10, The silicone-based emulsifier is PEG / PPG-18 / 18 dimethicone, characterized in that the W ₁ / Si / W ₂ type of silicone emulsion production method. The method of claim 10, The primary water phase (W ₁ ) comprises at least one moisturizing agent selected from the group consisting of glycerin, propylene glycol, butylene glycol, dipropylene glycol, sodium PCA and sodium hyaluronate Method for producing a W ₁ / Si / W ₂ type multiple silicone emulsion, characterized in that. The method of claim 10, The external water phase (W ₂ ) is a W ₁ / Si / W ₂ emulsion total weight of a nonionic surfactant of at least one HLB 14 or more selected from the group consisting of polysorbate 20, PY-40 stearate and nonoxynol-12 Method for producing a W ₁ / Si / W ₂ type multiple silicone emulsion, characterized in that it comprises in an amount of 0.1 to 10% by weight. A stabilized W ₁ / Si / W ₂ type multi-silicon emulsion prepared according to the method for producing a multi-silicon emulsion according to any one of claims 10 to 14. The method of claim 15, Cosmetic tissues impregnated with W ₁ / Si / W ₂ type multi-silicon emulsion, characterized in that the multi-silicon emulsion is impregnated in the nonwoven fabric in an amount of 100 to 500% by weight of the nonwoven fabric. The method of claim 16, The nonwoven fabric is W ₁ / Si / characterized in that the mixing ratio of cotton nonwoven fabric, biscorayon nonwoven fabric or biscorayon, polyethylene terephthalate, polypropylene and nylon any one of the mixing ratio of 5: 5 to 9: 1 weight ratio. W ₂ Cosmetic tissue impregnated with multiple silicone emulsions.