KR20210041232A - The water-in-oil(W/O) type cosmetic composition comprising a tamarind gum - Google Patents

Abstract

The present invention relates to a cosmetic composition of a water-in-oil (W/O) formulation. According to the present invention, since polyols, sugars and tamarind gum are included, it is possible to maintain the stability of the W/O formulation even when an oily thickener is not included. Also, the stability of the formulation can be maintained even when the composition is stored for a long time. The cosmetic composition of a W/O formulation according to the present invention comprises tamarind gum which is one of an aqueous thickeners. Thus, it is possible to maintain the stability of the W/O formulation even when an oily thickener is not included. Also, the stability can be maintained even when the composition is stored for a long time. When the cosmetic composition of a W/O formulation is applied to skin, stickiness can be reduced and comfort can be improved compared to other formulations.

Description

The water-in-oil (W/O) type cosmetic composition comprising a tamarind gum}

The present invention relates to a cosmetic composition of a water-in-oil (W/O) formulation capable of securing the stability of a water-in-oil (W/O) formulation without including an oily thickener and maintaining the stability of the formulation even when stored for a long time. will be.

More specifically, the present invention includes tamarind gum, which is one of the aqueous thickeners in the composition of the cosmetic composition, and is usually contained in water-in-oil (W/O) formulations to improve the stability of the formulation. It relates to a cosmetic composition capable of stabilizing a water-in-oil (W/O) formulation and maintaining a stable water-in-oil (W/O) formulation for a long period of time, even if it does not contain an oily thickener.

In general, emulsified cosmetic compositions are classified into two types: oil-in-water (O/W) formulation and water-in-oil (W/O) formulation, both of which combine the advantages of both oil and water phases to moisturize and soften the skin. Is given.

Of these, the water-in-oil (W/O) formulation has many advantages over the oil-in-water (O/W) formulation, so the oil-in-water (O/W) formulation is more stable than the water-in-oil (W/O) formulation. Despite this, a water-in-oil (W/O) formulation has been used in a wide range. Specifically, separation between droplets of the aqueous phase of the water-in-oil (W/O) formulation reduces the possibility of microbial proliferation, and in the case of the oil-in-water (O/W) formulation in which the continuous phase is aqueous, it is necessary to use a preservative. In the case of a water-in-oil (W/O) formulation in which the continuous phase is oily, it may not be used or only a small amount may be used. In addition, water-in-oil (W/O) formulations are much less sensitive to low temperatures than oil-in-water (O/W) formulations. Finally, the oily continuous phase makes it possible to cover the skin after the application of the water-in-oil (W/O) cosmetic composition, which forms a lasting oily film on the skin, thereby protecting the skin from dehydration and external irritation.

Regarding the stability of the oil-in-water (O/W) formulation and the water-in-oil (W/O) formulation, in the oil-in-water (O/W) formulation, conventionally, an emulsion film was formed by including a surfactant, a higher alcohol, a wax, etc. By strengthening and preventing coalescence of the oil phase, the emulsified particles were stabilized. In addition, the already formed emulsified particles maintained stability by preventing creaming and flocculation through the increase in the water phase, which is a continuous phase. However, in the water-in-oil (W/O) formulation, unlike the oil-in-water (O/W) formulation, since it is difficult to increase the continuous oil phase, it is difficult to suppress flocculation and coalescence between particles. , It has a problem that the viscosity and hardness of the formulation decrease with time, and finally the formulation is separated. In particular, there is a problem in that this phenomenon is accelerated in a formulation having a low viscosity.

In order to secure the stability of such a water-in-oil (W/O) formulation, conventionally, an oily thickener is added in the composition of a cosmetic composition of a water-in-oil (W/O) formulation to increase the trauma to adjust the hardness and viscosity of the formulation. By doing so, formulation stability has been pursued. Examples of the oily thickener include hectorite, bentonite, montmorillonite, and benton clay modified to be compatible with oil, and these include Bentone 38V CG (manufactured by Elementis, Distear). Dymonium hectorite) and the like. However, even with the use of the oily thickener, it is not easy to achieve the desired viscosity or hardness, and furthermore, when the oily thickener is not included, it becomes more difficult to achieve the desired viscosity or hardness, thereby reducing the stability of the formulation. Since it was difficult to secure, not only has it been recognized that the cosmetic composition of the conventional water-in-oil (W/O) formulation must include an oily thickener, but it was not possible to predict that it did not contain it.

On the other hand, as described above, when an oily thickener is used in the composition of the cosmetic composition, when it is used on the skin, comfort is deteriorated, and unnecessary processes are added, resulting in a problem of deteriorating process efficiency. For example, as an oily thickener mainly used in water-in-oil (W/O) formulations, hectoride-based thickeners, more specifically, disteardimonium hectorate, can be cited. When used on, it may hinder the feeling of use such as damp or sticky.

In addition, in order to use such an oily thickener, a dispersion process must be performed for at least 10 minutes, and if this dispersion process is not performed, it is present in the form of particles in the formulation, and thus the desired degree of viscosity or hardness cannot be formed. A problem arises. In addition, when an oil or a surfactant having poor compatibility is used for the oily thickener, there may be a problem in that precipitation or dispersion is not properly performed. For this reason, the oily thickener should be paid attention to its use, but nevertheless, in a water-in-oil (W/O) formulation, it was an indispensable ingredient for the stability of the formulation.

In addition, the prior art discloses a cosmetic composition of a water-in-oil formulation showing a good feeling of use by mixing a specific ester compound with an ester oil in the oil phase and mixing a water-soluble inorganic salt in the aqueous phase. Also, by including many oily parts, the comfort level did not reach a satisfactory level when applied to the skin. In addition, there is a problem in that stability is poor when the viscosity is low, and thus it is difficult to commercialize it.

Therefore, the present inventors, in the cosmetic composition of the water-in-oil (W / O) formulation, by including tamarind gum (Tamarind Gum), one of the aqueous thickeners, water-in-oil (W/O), without including an oily thickener, O) The stability and stability over time of the formulation are improved, and when the cosmetic composition of such a water-in-oil (W/O) formulation is applied to the skin, it was found that the stickiness was reduced and the comfort was improved compared to other formulations, and the present invention Completed.

Republic of Korea Patent Publication No. 10-2004-0081457 (2004.09.21), Manufacture of water-in-oil emulsion for external use of the skin. Republic of Korea Patent Registration No. 10-1608688 (2016.03.29.), water-in-oil emulsifying makeup cosmetic composition using a water-in-water gum.

Accordingly, an object of the present invention is to provide a cosmetic composition of a water-in-oil (W/O) formulation capable of stably maintaining a water-in-oil (W/O) formulation without including an oily thickener.

In addition, another object of the present invention is to stably maintain a water-in-oil (W/O) formulation even when the viscosity of the cosmetic composition of the water-in-oil (W/O) formulation is low, without including an oily thickener. It is to provide a cosmetic composition of a water-in-oil (W/O) formulation.

In addition, another object of the present invention is, when a cosmetic composition of a water-in-oil (W/O) formulation is applied to the skin, water-in-oil (W/O) that can reduce stickiness and improve comfort compared to other formulations. ) To provide a cosmetic composition of the formulation.

In order to achieve the above object, the present invention provides a cosmetic composition in a water-in-oil (W/O) formulation comprising polyol, sugar and tamarind gum.

In addition, the present invention provides a cosmetic composition in a water-in-oil (W/O) formulation that does not contain an oily thickener.

In addition, the present invention provides a cosmetic composition in a water-in-oil (W/O) formulation, wherein the cosmetic composition has a viscosity of 10 to 100,000 cps.

In addition, the present invention provides a cosmetic composition in a water-in-oil (W/O) formulation in which the tamarind gum content is 0.1 to 5% by weight based on the weight of the total composition.

In addition, in the present invention, the polyol is glycerin, erythritol, propylene glycol, 1,3-butylene glycol, sorbitol, polyglycerin, propanediol, malitol glycerin, dipropylene glycol, 1,2-pentane It provides a cosmetic composition in a water-in-oil (W/O) formulation of at least one selected from the group consisting of diol, isoprene glycol, xylitol, polyethylene glycol, isoprene glycol, and xylitol.

In addition, the present invention provides a cosmetic composition in a water-in-oil (W/O) formulation in which the content of the polyol is 1 to 30% by weight based on the weight of the total composition.

In addition, in the present invention, the saccharide is sorbitol, xylitol, erythritol, mannitol, maltitol, glucose, fructose, galactose, mannose, treose, xylose, arabinose, fucose, ribose, deoxyribose, maltose, It provides a cosmetic composition of one or more water-in-oil (W/O) formulations selected from the group consisting of trehalose, lactose, and raffinose.

In addition, the present invention provides a cosmetic composition in a water-in-oil (W/O) formulation, wherein the sugar content is 1 to 10% by weight based on the weight of the total composition.

In addition, the present invention provides a cosmetic composition in a water-in-oil (W/O) formulation further comprising at least one selected from emollients, surfactants, and solvents as a cosmetic composition.

In addition, the present invention provides a cosmetic composition in a water-in-oil (W/O) formulation in which the emollient is at least one selected from the group consisting of silicone oil, ester oil, hydrocarbon oil, and triglyceride oil.

In addition, the present invention provides a cosmetic composition in a water-in-oil (W/O) formulation wherein the surfactant is at least one selected from the group consisting of a PEG-based surfactant, a PG-based surfactant, and a sorbitan-based surfactant.

In addition, in the present invention, the solvent is at least one selected from the group consisting of purified water, purified water, hard water, soft water, natural water, deep ocean water, electrolytic alkaline ionized water, electrolytic acidic ionized water, ionized water, and cluster water (W/O ) It provides a cosmetic composition of the formulation.

In addition, in the present invention, the formulation of the cosmetic composition is skin lotion, skin softener, skin toner, astringent, lotion, milk lotion, moisture lotion, nutrition lotion, massage cream, nutrition cream, moisture cream, hand cream, foundation, essence, It provides a cosmetic composition of any one or more selected from the group consisting of nutritional essence, pack, soap, cleansing foam, cleansing lotion, cleansing cream, body lotion and body cleanser, in a water-in-oil (W/O) formulation.

According to the present invention, a water-in-oil (W/O) formulation is stable by including an appropriate amount of tamarind gum, which is one of the aqueous thickeners, in a cosmetic composition of a water-in-oil (W/O) formulation, even if it does not contain an oily thickener. In addition to being formed, it is possible to maintain the formulation stability even after a long time elapses.

In addition, the cosmetic composition of the water-in-oil (W/O) formulation according to the present invention can stably maintain the water-in-oil (W/O) formulation even at low viscosity.

In addition, when the cosmetic composition of the water-in-oil (W/O) formulation according to the present invention is applied to the skin, the feeling of use such as nutrition, moisture, elasticity, and adhesion may be improved compared to other formulations.

1 shows the state of the formulation after storing the cosmetic composition according to Example 1 and Comparative Example 1 of the present invention for 48 hours. Referring to FIG. 1, when a cosmetic composition of a water-in-oil (W/O) formulation contains an appropriate amount of 0.1 to 5% by weight based on the weight of the total composition, after long-term storage (after 48 hours) ), it was confirmed that the formulation stability was maintained.

Hereinafter, preferred embodiments of the present invention will be described in detail in order to enable those of ordinary skill in the art to easily implement the present invention.

The cosmetic composition of the water-in-oil (W/O) formulation referred to in the present invention refers to a cosmetic composition composed of an aqueous phase part dispersed in an external oil phase part, which is a continuous phase.

The cosmetic composition according to the present invention is a water-in-oil (W/O) formulation comprising an oil phase part and an aqueous phase part, the oil phase part contains an emollient, and the water phase part may contain water.

Hereinafter, the composition of the cosmetic composition of the water-in-oil (W/O) formulation of the present invention will be described in more detail.

The cosmetic composition of the water-in-oil (W/O) formulation of the present invention may include polyol, sugar as a moisturizing agent, and tamarind gum as an aqueous phase thickener.

In addition, the cosmetic composition of the water-in-oil (W/O) formulation of the present invention may not contain an oily thickener.

Examples of the oily thickener include hectorite, bentonite, montmorillonite, and benton clay modified to be compatible with oil, and generally available Benton 38V CG (manufactured by Elementis, Disteadymo Nium hectorite). When the oily thickener is used, the oil content of the cosmetic composition increases, and thus, the viscosity of the oily part is excessively increased, thereby increasing the stickiness, resulting in a problem of lowering comfort when applied to the skin, as well as a cosmetic composition having a low viscosity. In the composition, there is a problem in that the stability of the formulation is inferior. Specifically, in the water-in-oil (W/O) formulation, when the viscosity is low, coalescence or aggregation tends to occur compared to the oil-in-water (O/W) formulation. In particular, at a viscosity of 5,000 cps or less, when a sufficient amount of PEG-based surfactant is not present, coalescence or aggregation occurs very easily, resulting in a problem that the stability of the formulation is rapidly deteriorated.

On the other hand, the cosmetic composition of the water-in-oil (W/O) formulation according to the present invention not only solves the above problem by not including the oily thickener, but also contains an appropriate amount of tamarind gum, so that the viscosity of the cosmetic composition is increased. Even if it is low, the stability of the formulation can be maintained over a long period of time.

The viscosity of the cosmetic composition of the water-in-oil (W/O) formulation of the present invention may be 10 to 100,000 cps, preferably 5,000 to 50,000 cps, and more preferably 10,000 to 30,000 cps. When the viscosity of the cosmetic composition is too high, a problem occurs in that the aqueous portion is strongly aggregated to separate from the oil phase, and when it is too low, a problem occurs in that the oil phase is separated to form an oil layer, so the viscosity of the cosmetic composition is It is preferable to satisfy the above range.

In the cosmetic composition of the water-in-oil (W/O) formulation of the present invention, the polyol, glycerin, erythritol, propylene glycol, 1,3-butylene glycol, sorbitol, polyglycerin, propanediol, malitol glycerin, It may be one or more selected from the group consisting of dipropylene glycol, 1,2-pentanediol, isoprene glycol, xylitol, polyethylene glycol, isoprene glycol, and xylitol.

The content of the polyol may be 1 to 30% by weight, preferably 5 to 20% by weight, and more preferably 10 to 15% by weight based on the weight of the total composition. When the content of the polyol is too high, the tamarind gum is not dispersed in the aqueous phase, and thus, there is a problem that the increase is not achieved.If the content of the polyol is too small, the tamarind gum in the aqueous phase is lumped together and gradually increases. There may be a problem that this is not achieved. Therefore, it is preferable to satisfy the content of the polyol in the above range.

In addition, in the cosmetic composition of the water-in-oil (W/O) formulation of the present invention, the saccharide functions as a moisturizer, and includes sorbitol, xylitol, erythritol, mannitol, maltitol, glucose, fructose, galactose, mannose, threose, It may be one or more selected from the group consisting of xylose, arabinose, fucose, ribose, deoxyribose, maltose, trehalose, lactose, and raffinose.

The saccharide content may be 1 to 10% by weight, preferably 1 to 5% by weight, and more preferably 1 to 2% by weight based on the weight of the total composition. If the content of the saccharide is too high, the dissolving power of the aqueous phase is lowered and the tamarind gum is not dispersed, resulting in a problem that the increase in viscosity decreases.If the content of the saccharide is too small, the osmotic pressure of the aqueous phase decreases, resulting in cold damage. When stored under the same conditions, there may be a problem that the formulation is separated. Therefore, it is preferable to satisfy the saccharide content in the above range.

In addition, tamarind gum in the cosmetic composition of the water-in-oil (W/O) formulation of the present invention is an aqueous phase thickener, which generally serves to increase the viscosity of the aqueous phase while gelling in the aqueous phase. In the technical field, it is generally used in oil-in-water (O/W) formulations. Usually, water-in-water thickeners (carbomer, xanthan gum, acrylate thickener, etc.) included in the cosmetic composition of the oil-in-water (O/W) formulation are used in a water-in-oil (W/O) formulation, water-in-oil ( W/O) It is known that it does not affect the stability of the formulation. Particularly, when a water-in-water (W/O) cosmetic composition contains a water-in-water thickener such as carbomer, xanthan gum, or an acrylate thickener, if it does not contain an oily thickener, a water-in-oil (W/O) formulation is used. Not only it could not be formed stably, but also the stability over time of the formulation could not be secured. On the other hand, it is well known that in a cosmetic composition of a water-in-oil (W/O) formulation, an oily thickener must be contained in order to secure the stability of the formulation. However, in the present invention, by including tamarind gum, which is one of the water-in-water thickeners, water-in-oil (water-in-oil (W/O), even if it does not contain an oily thickener (bentone, dextrin series, etc.), which is an essential component of the cosmetic composition W/O) It can improve the stability of the formulation. In addition, it is possible to maintain the stability of the water-in-oil (W/O) formulation even after long-term storage of the cosmetic composition.

The reason is that the tamarind gum contained as described above increases the viscosity of the aqueous phase and functions to prevent coalescence of the oil phase, thereby making it possible to improve the stability of the water-in-oil (W/O) formulation. Specifically, look at the structure of tamarind gum for you, and have a very long chain of tamarind black, so many hydroxyl (OH ^-) got the hydrophilic material is a high. As described above, although tamarind gum has high hydrophilicity, it is possible to prevent coalescence between the oil phases due to the long chain, and thus the stability of the water-in-oil (W/O) formulation can be improved.

The cosmetic composition of the water-in-oil (W/O) formulation of the present invention may contain 0.1 to 10% by weight, preferably 0.5 to 5% by weight, based on the weight of the total composition of the tamarind gum. And, more preferably, it may contain 1 to 3% by weight.

When the content of the tamarind gum is too high, the aqueous phase and the oil phase are aggregated to increase the hardness of the formulation, and exhibit a hard solid gel form, making it impossible to form a stable water-in-oil (W/O) formulation, as well as stickiness. If the problem of getting worse occurs, and the content of the tamarind gum is too small, the viscosity of the aqueous phase cannot be sufficiently increased, and the coalescence of the oil phase cannot be prevented. Therefore, it is preferable to satisfy the content of the tamarind gum in the above range.

The cosmetic composition of the water-in-oil (W/O) formulation of the present invention may further include one or more selected from emollients, surfactants, and solvents.

The emollient may include all natural oils and synthetic oils generally used in cosmetics, and may be at least one selected from the group consisting of silicone oils, ester oils, hydrocarbon oils and triglyceride oils. Silicone oils including, for example, dimethicone, cyclomethicone, phenyltrimethicone, and trisiloxane/dimethicone; Ester oils including cetylethylhexanoate, isopropyl palmitate, isopropyl myristate, alkylbenzoate, diethoxyethylsuccinate and pentylerythrityl tetraisostearate; Hydrocarbon oils including mineral oil, isohexadecane, isodecane, undecane, squalane, hydrogenated polydecene, alpha olefin oligomer and hydrogenated polyisobutene; At least one selected from the group consisting of triglyceride-based oils including castor oil, meadowfoam seed oil, caprylic/capric triglyceride, coconut oil and safflower seed (safflower seed) oil, and mixtures thereof. , But is not limited thereto.

In addition, the surfactant may be at least one selected from the group consisting of a PEG-based surfactant, a PG-based surfactant, and a sorbitan-based surfactant. In addition, as the surfactant, a surfactant typically used in a cosmetic composition of a water-in-oil (W/O) formulation may be used.

The PEG surfactant may include all polyethylene clyceryl compounds generally used as surfactants in cosmetics. However, among them, for use in a cosmetic composition of a water-in-oil (W/O) formulation, the HLB value must be 7 or less, and the PEG-based surfactant is preferably dissolved at 70° C. or less in the oil phase.

Examples of the PG-based surfactant may include all polyglyceryl-based compounds generally used as surfactants in cosmetics. However, among them, for use in a water-in-oil (W/O) cosmetic composition, the HLB value should be 7 or less, and the PG-based surfactant is preferably dissolved at 70° C. or less in the oil phase.

In addition, examples of the sorbitan-based surfactant may include all sorbitan ester-based compounds generally used as surfactants in cosmetics. However, among them, for use in a cosmetic composition of a water-in-oil (W/O) formulation, the HLB value should be 7 or less, and the sorbitan-based surfactant is preferably dissolved at 70° C. or less in the oil phase.

In addition, the PG-based surfactant is diisostearoyl polyglyceryl-3 dimer dilinoleate (Diisostearoyl Polyglyceryl-3 Dimer Dilinoleate), polyglyceryl-4 diisostearate / polyhydroxystearate / sebacate ( Polyglyceryl-4 Diisostearate/Polyhydroxystearate/Sebacate), polyglyceryl-4 isostearate, and polyglyceryl-3 oleate. , The sorbitan-based surfactant is Sorbitan Olivate, Sorbitan Stearate, Sorbitan Isostearate, Sorbitan Tristearate, Sorbitan Ces Quistearate (Sorbitan Sesquistearate), Sorbitan Palmitate (Sorbitan Palmitate), Sorbitan Laurate (Sorbitan Laurate), Sorbitan Oleate, Sorbitan Sesquioleate (Sorbitan Sesquioleate), Sorbitan Sesquioleate Sorbitan Trioleate, Sorbitan Stearate and Sorbityl Laurate, Polysorbate 20, Polysorbate 40, Polysorbate 60, Polysorbate 65, Polysorbate 80, and polysorbate 85) at least one selected from the group consisting of, preferably sorbitan isostearate, sorbitan olivate, sorbitan stearate, And it may be one or more selected from the group consisting of sorbitan oleate (Sorbitan Oleate).

In addition, the solvent may be one or more selected from the group consisting of purified water, purified water, hard water, soft water, natural water, deep ocean water, electrolytic alkaline ionized water, electrolytic acidic ionized water, ionized water, and cluster water.

The cosmetic composition of the water-in-oil (W/O) formulation of the present invention includes all kinds of ingredients that can be used in conventional cosmetics, whitening effect ingredients, anti-wrinkle ingredients, fragrances, preservatives, and oxidation within the scope not impairing the purpose of the present invention. It may further include an inhibitor, an anti-discoloration agent, and the like.

In addition, the formulation of the cosmetic composition according to the present invention is not particularly limited, and may be appropriately selected depending on the intended purpose. For example, skin lotion, skin softener, skin toner, astringent, lotion, milk lotion, moisture lotion, nutrition lotion, massage cream, nutrition cream, moisture cream, hand cream, foundation, essence, nutrition essence, pack, soap, cleansing Foam, cleansing lotion, cleansing cream, body lotion, and may be prepared in one or more formulations selected from the group consisting of a body cleanser, but is not limited thereto.

Hereinafter, the present invention will be described in more detail through examples. The following examples are only illustratively presented to illustrate the present invention in more detail, and that the scope of the present invention is not construed as being limited by these examples. It will be self-evident.

Example: Preparation of cosmetic composition of water-in-oil (W/O) formulation

A cosmetic composition of the water-in-oil (W/O) formulation of Examples 1 to 2 and Comparative Examples 1 to 3 having the composition shown in Table 1 below was prepared.

Specifically, in the oil phase, a W/O surfactant, an oil phase thickener (Comparative Examples 3 and 5) and a solvent were added to the emollient, and then heated to 70° C., and an azimixer (manufactured by National Motor, National SS Motor) was used, It was stirred slowly for 2 minutes at a low speed of 100 rpm. The water phase part uses purified water as a solvent, adds a polyol, a moisturizing agent, and an aqueous phase thickener, warms to 70°C, and uses an Azimixer (manufactured by National Motor, National SS Motor) for 2 minutes at a low speed of 100 rpm. It was stirred slowly. While the water phase was slowly added to the oil phase after heating and stirring was completed, the mixture was stirred for 2 minutes at a speed of 300 rpm using an azimixer, thereby preparing a cosmetic composition having a water-in-oil (W/O) formulation.

Glycerin was used as the polyol, Squalane was used as the emollient, and Sorbitan Isostearate was used as a surfactant in the water-in-oil (W/O) formulation, and as a moisturizing agent. Trehalose was used. In addition, tamarind gum having the following structure was used as the aqueous phase thickener. In addition, in Comparative Examples 3 and 4, a mixture of Xanthan Gum, Carrageenan Gum, and Locust Bean Gum was used as an aqueous phase thickener, and in Comparative Examples 3 and 5, as an oil phase thickener, a mixture of Xanthan Gum, Carrageenan Gum, and Locust Bean Gum was used. Disteardimonium Hectorite was used.

The detailed composition of the water-in-oil (W/O) cosmetic composition prepared according to the above is shown in Table 1 below.

ingredient function Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Squalane Emollient 30 30 30 30 30 30 Sorbitan Isostearate W/O
Surfactants 2 2 2 2 2 2 Distearmonium hectorite Paid thickener - - - 0.5 - 0.5 Purified Water solvent Up to 100 Up to 100 Up to 100 Up to 100 Up to 100 Up to 100 Glycerin Polyol 10 10 10 10 10 10 Trehalose Moisturizer 2 2 2 2 2 2 Tamarind Gum Award thickener One - 6 - - 0.5 Xanthan gum Award thickener - - - 0.167 0.34 - Carrageenan sword Award thickener - - - 0.167 0.34 - Locust Bean Gum Award thickener - - - 0.167 0.34 -

* Each value in the table above represents parts by weight

Experimental Example 1: Formulation stability evaluation of cosmetic composition of water-in-oil (W/O) formulation

In order to evaluate the stability of the cosmetic composition of the water-in-oil (W/O) formulation over time, water-in-oil (W/O) prepared in various compositions of Examples 1 to 2 and Comparative Examples 1 to 3 shown in Table 1 above. The cosmetic composition of the formulation was stored at room temperature (25° C.) for 48 hours to evaluate the stability.

On the other hand, Experimental Example 1 was conducted by accelerating the drop in stability by using a small amount of surfactant with respect to the amount of surfactant required to actually form a stable formulation.

The results are shown in Table 2 below.

Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Viscosity immediately after manufacture 7850 4530 Not measurable 10580 3899 15480 After 6 hours (viscosity) stability
(8230) Layer separation
start - stability
(11389) Layer separation
start stability
(16397) After 12 hours (viscosity) stability
(8370) Layers are completely separated - stability
(10480) Layers are completely separated stability
(16640) After 24 hours (viscosity) stability
(8520) - - stability
(9580) - stability
(16880) After 48 hours (viscosity) stability
(8548) - - Fine layer separation
(8548) - stability
(18046)

* The unit of each viscosity in the above table is cps

As a result of the above experiment, in the case of Example 1, even after storage at room temperature (25°C) for 48 hours, the water-in-oil (W/O) formulation was stably maintained, and the viscosity was increased despite not using an oily thickener. Could be observed. On the other hand, in the case of Comparative Examples 1 and 4, it was confirmed that the layer was separated after 6 hours, and after 12 hours, the layer was completely separated. From this, it was found that the formulation stability was not maintained when the aqueous phase thickener was not used or when an aqueous phase thickener other than tamarind gum was used as the aqueous phase thickener. In addition, in the case of Comparative Example 2, the aqueous phase was excessively increased, so that a water-in-oil (W/O) formulation could not be prepared. From this, it was found that when tamarind gum was contained too much as an aqueous phase thickener, a water-in-oil (W/O) formulation could not be prepared. In addition, in the case of Comparative Example 3, the water-in-oil (W/O) formulation was stably maintained, but it was confirmed that the viscosity decreased after 24 hours and that the layers were finely separated after 48 hours. From this, it was found that when a water phase thickener other than tamarind gum was used in combination with an oily thickener as an aqueous phase thickener, the formulation stability was deteriorated after a long period of time. In addition, Comparative Example 5 was a case where an oily thickener and tamarind gum were used in combination, and although the water-in-oil (W/O) formulation was stably maintained, it was confirmed that the viscosity was very high compared to Example 1 and Comparative Example 4. Could. From this, it was found that when the oily thickener and tamarind gum were used in combination, it was difficult to form a low viscosity.

Experimental Example 2: Sensory evaluation of cosmetic composition of water-in-oil (W/O) formulation

As shown in Table 3 below, a cosmetic composition of a water-in-oil (W/O) formulation prepared in the composition of Example 2 and Comparative Example 6 was applied on the skin to measure the feeling of use. Table 3 below used a prescription showing a stability of at least one week at room temperature in order to confirm the difference in the feeling of use by tamarind gum.

ingredient function Example 2 Comparative Example 6 Squalane Emollient 8 8 CETYL ETHYLHEXANOATE Emollient 8 8 Distearmonium hectorite Paid thickener - One Sorbitan Isostearate W/O
Surfactants 3 3 Purified Water solvent Up to 100 Up to 100 Glycerin Polyol 10 10 Trehalose Moisturizer 2 2 Tamarind Gum Award thickener One -

* Each value in the table above represents parts by weight

Specifically, for 20 women in their 20s to 30s, a certain amount of 100 μl of a sample was dropped onto the forearm of the left or right arm with a pipette, and then spread with the index finger 20 times (1 time/second) for 20 seconds to evaluate. For 20 seconds, evaluation of characteristic scores such as nutrition, moisture, elasticity, adhesion, and spreadability, and after 20 seconds, tapped with an index finger for absorption, and then pressed and removed with a hand at the point where absorption was thought to be almost complete, and residual oiliness and The moisturizing feeling was evaluated. Characteristic scores such as nutrition, moisture, elasticity, fit, spreadability, and oily were evaluated. At the point where it was thought that absorption was almost finished, it was pressed and removed by hand to evaluate the residual oiliness and moisturizing feeling. The score for the feeling characteristics is 20 points as the highest point, and in the case of a general O/W cream formulation, 8 to 11 points are reported as an average score, and if it exceeds 12 points, the feeling is evaluated as excellent.

The results are shown in FIG. 2. Referring to FIG. 2, the cosmetic composition according to Example 2 using tamarind gum, which is an aqueous thickener, is superior to the cosmetic composition according to Comparative Example 6 using distearmonium hectorite, which is an oily thickener. I could confirm that. In particular, it could be seen that the cosmetic composition according to Example 2 significantly improved the nutritional and hydration feeling by the tamarind gum compared to the cosmetic composition according to Comparative Example 6.

As can be seen through the above Experimental Examples 1 to 2, as in the present invention, in the manufacture of a cosmetic composition of a water-in-oil (W/O) formulation, tamarind gum is 1% by weight or more and 5% by weight or less based on the total weight of the cosmetic composition. When included, it was confirmed that the stability of the water-in-oil (W/O) formulation was improved (Example 1 and Comparative Example 2), and when both the oily thickener and the tamarind gum were not included, or other than tamarind gum In the case of using the aqueous thickener of, it was confirmed that the water-in-oil (W/O) formulation occurred as time passed, and the layer was completely separated after 12 hours (Comparative Examples 1 and 4). That is, it was found that the formulation stability rapidly decreased as time passed. In addition, when an oily thickener is used in combination with xanthan gum, carrageenan gum, locust tongum, etc., excluding the tamarind gum of the present invention as an aqueous phase thickener, it was confirmed that the initial formulation was maintained to some extent, but formulation stability decreased with the passage of a long time. It was possible (Comparative Example 3). In addition, when the oily thickener and tamarind gum were used in combination, it was confirmed that a low-viscosity formulation could not be formed (Comparative Example 5).

Therefore, in the case of the cosmetic composition of a water-in-oil (W/O) formulation containing tamarind gum according to the present invention, even if it does not contain an oily thickener, a water-in-oil (W/O) formulation can be stably formed, and for a long period of time Even if stored for a while, it was found that the stability of the water-in-oil (W/O) formulation could be maintained. In addition, it was found that when the cosmetic composition of the water-in-oil (W/O) formulation containing tamarind gum according to the present invention was applied on the skin, the feeling of use such as nutrition, moisture, elasticity, and adhesion was improved.

Claims (13)

A cosmetic composition of a water-in-oil (W/O) formulation comprising polyol, sugar and tamarind gum. The method of claim 1,
The cosmetic composition does not contain an oily thickener, a cosmetic composition of a water-in-oil (W/O) formulation. The method of claim 1,
The cosmetic composition has a viscosity of 10 to 100,000 cps, a cosmetic composition in a water-in-oil (W/O) formulation. The method of claim 1,
The content of the tamarind gum is 0.1 to 10% by weight based on the weight of the total composition, the cosmetic composition of the water-in-oil (W / O) formulation. The method of claim 1,
The polyol is glycerin, erythritol, propylene glycol, 1,3-butylene glycol, sorbitol, polyglycerin, propanediol, malitol glycerin, dipropylene glycol, 1,2-pentanediol, isoprene glycerin Cole, xylitol, polyethylene glycol, isoprene glycol, and at least one selected from the group consisting of xylitol, a cosmetic composition of water-in-oil (W/O) formulation. The method of claim 1,
The content of the polyol is 1 to 30% by weight based on the weight of the total composition, the cosmetic composition of the water-in-oil (W / O) formulation. The method of claim 1,
The saccharides are sorbitol, xylitol, erythritol, mannitol, maltitol, glucose, fructose, galactose, mannose, treose, xylose, arabinose, fucose, ribose, deoxyribose, maltose, trehalose, lactose and raffino. One or more selected from the group consisting of ossu, a cosmetic composition of water-in-oil (W/O) formulation. The method of claim 1,
The content of the saccharides is 1 to 10% by weight based on the weight of the total composition, a cosmetic composition of the water-in-oil (W / O) formulation. The method of claim 1,
The cosmetic composition further comprises at least one selected from emollients, surfactants and solvents, a cosmetic composition in a water-in-oil (W/O) formulation. The method of claim 9,
The emollient is at least one selected from the group consisting of silicone oils, ester oils, hydrocarbon oils and triglyceride oils, a cosmetic composition in a water-in-oil (W/O) formulation. The method of claim 9,
The surfactant is at least one selected from the group consisting of a PEG-based surfactant, a PG-based surfactant, and a sorbitan-based surfactant, a cosmetic composition in a water-in-oil (W/O) formulation. The method of claim 9,
The solvent is one or more selected from the group consisting of purified water, purified water, hard water, soft water, natural water, deep ocean water, electrolytic alkaline ionized water, electrolytic acidic ionized water, ionized water, and cluster water, a cosmetic composition of water-in-oil (W/O) formulation . The method of claim 1,
The formulation of the cosmetic composition is skin lotion, skin softener, skin toner, astringent, lotion, milk lotion, moisture lotion, nutrition lotion, massage cream, nutrition cream, moisture cream, hand cream, foundation, essence, nutrition essence, pack, soap , Cleansing foam, cleansing lotion, cleansing cream, body lotion, and any one or more selected from the group consisting of a body cleanser, a cosmetic composition of a water-in-oil (W/O) formulation.

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