KR102661966B1 - A cosmetic composition that imparts an excellent glossiness by phase transition when applied to the skin and a method for preparing the same - Google Patents

Abstract

This application relates to a cosmetic composition that transfers when applied to the skin and provides excellent gloss, and a method for manufacturing the same. According to one embodiment of the cosmetic composition, it has an O/W type formulation and does not feel oily when applied to the skin (e.g., lips). It is applied lightly with a feeling of moisture, and the water-soluble pigment quickly colors the skin. The formulation of the composition applied to the skin is quickly converted to a W/O type due to the physical force applied during application and the skin temperature, forming a coating on the surface of the skin. An oil film is formed on the surface, which gradually increases the glossiness, prevents moisture loss, and maintains excellent levels of moisturizing and coloring properties, resulting in a significantly better feeling of use. In addition, according to the cosmetic composition of one embodiment, a stable O/W type formulation is maintained without phase separation even when stored at high temperature for a long period of time, showing significantly excellent formulation stability.

Description

A cosmetic composition that imparts an excellent glossiness by phase transition when applied to the skin and a method for preparing the same {A cosmetic composition that imparts an excellent glossiness by phase transition when applied to the skin and a method for preparing the same}

It relates to a cosmetic composition that transfers to the skin and provides excellent gloss when applied to the skin, and a method of manufacturing the same.

As the temperature of the emulsifier increases, the hydrogen bond between the hydrophilic group ethylene oxide and water decreases, thereby reducing the hydrophilic nature. In the case of an emulsified formulation containing the three ingredients of water, silicone oil, and non-silicone oil and an emulsifier, an O/W type emulsion is formed at a specific temperature, and when it exceeds the specific temperature, a W/O type emulsion is formed. The temperature that can cause this phase transition is called the phase transition temperature. In other words, the bed transfer temperature can be said to be the temperature at which the hydrophilic-lipophilic properties are balanced in the emulsion system. In addition, around the bed temperature, the interfacial tension between oil-surfactant-water is extremely low, so oil and water are easily mixed even when a small force is applied, and separation can easily occur due to the difference in specific gravity.

General cosmetics exist in O/W type formulation, W/O type formulation, and solubilized formulation, and each has advantages and disadvantages. For example, the O/W type formulation is the most common emulsion formulation and can be developed into various forms. In particular, the O/W type gel type has the advantage of being light and cool and easy to use. Meanwhile, the W/O type formulation is mainly used for high-moisturizing creams and sun products. Although it has a slightly lower feeling of use, it has the advantage of having a higher moisturizing effect and a waterproof effect compared to the O/W type formulation. As a study to take advantage of the respective advantages of the O/W type formulation and the W/O type formulation, research is being attempted to develop cosmetics that exhibit a phase transition effect using phase transition temperature, etc. as described above. However, existing cosmetics with a reversal effect have the disadvantage that a large amount of emulsifiers must be used and the stability conditions are difficult, so even if the reversal effect is not considered, the stability of the formulation is low.

Meanwhile, among the many lip products on the market, most products with excellent gloss have a sticky feeling when applied, so consumers' preference for them is low. In contrast, there are many lip products with enhanced refreshing and coloring effects. However, they are insufficient to meet the needs of consumers because they have a high moisture content and have a significantly low gloss. Accordingly, there have been attempts to add additional gloss materials to lip products with high moisture content, and ethylcellulose has been studied in various ways as a representative gloss material. However, in the case of lip products manufactured by adding the above substances, only somewhat uneven application was possible on the lips, and there was a limitation in that it was difficult to stabilize the formulation without containing strong surfactant substances that cause irritation.

Under this background, the present inventors developed an oil-in-water (O/W) type cosmetic composition containing a water-soluble pigment by adjusting the weight ratio of silicone oil and non-silicone oil, total oil content, and weighted average HLB value of the mixed surfactant. The present invention was completed by confirming that the cosmetic composition exhibits a significantly excellent feeling of use (spreadability, moisture, moisturizing power, coloring power, glossiness, etc.) due to the property of being transferred when applied to the skin, and at the same time shows a significantly excellent formulation stability. .

One aspect is to provide a cosmetic composition comprising a water-soluble ingredient, an oil, and a surfactant, the oil comprising a silicone oil and a non-silicone oil.

Another aspect is to provide a method for producing the cosmetic composition.

Other objects and advantages of the present application will become clearer from the following detailed description together with the appended claims and drawings. Contents not described in this specification can be fully recognized and inferred by a person skilled in the technical field of this application or a similar technical field, so description thereof is omitted.

Each description and embodiment disclosed in this application may also be applied to each other description and embodiment. That is, all combinations of the various elements disclosed in this application fall within the scope of this application. Additionally, the scope of the present application cannot be considered limited by the specific description described below.

One aspect provides a cosmetic composition comprising an aqueous phase component (i.e., a water-soluble component), an oil phase component (i.e., an oil-soluble component), and a surfactant.

The oil phase component may include oil. Specifically, the oil included in the cosmetic composition may include silicone oil, non-silicone oil, or a combination thereof.

The silicone oil may include phenyl dimethicone, silicone resin, etc., but is not limited thereto. Specifically, the silicone oil includes methicone, cyclopentasiloxane, cyclomethicone, cyclopentasiloxane, cyclohexasiloxane, phenyltrimethicone, dimethicone, dimethiconol, cetyldimethicone, and caprylylmethicone. , amodimethicone, methyltrimethicone, PCADimethicone, trisiloxane, trimethylsiloxyphenyldimethicone, diphenyldimethicone, diphenylsiloxyphenyltrimethicone, Phenyl Methicone, Phenyl Isopropyl Dimethicone, It may include, but is not limited to, any one or more selected from the group consisting of trimethylsiloxysilicate, and polyphenylsilsesquioxane. The silicone oil may not contain a silicone-based surfactant.

The non-silicone oil may include, but is not limited to, any one or more selected from the group consisting of hydrocarbon oil, ester oil, vegetable oil, animal oil, and mineral oil. Specifically, the hydrocarbon-based oils include polyglyceryl-2 triisostearate, hydrogenated polyisobutene, polyisobutene, bis-diglyceryl polyacyladipate-2, and bis-behenyl/isostearyl. / Phytosteryl dimer dilinoleyl dimer dilinoleate, pentaerythrityl tetraethylhexanoate, etc., and the ester oils include dibutyl adipate, caprylic/capric glyceride, and cete. Lithylhexanoate, isopropyl myristate, isocetyl stearate, octyldodecanol, methylperfluoroisobutyl ether, C12-15 alkyl benzoate, triethylhexanoin, cetyl ethylhexanoin, Kore Steryl hydroxystearate, diisostearyl maleate, isotridecyl isononanoate, isononylsononanoate, neopentyl glycol dicaprate, di-C12-13 alkyl maleate, butylene glycol dicaprate. Prilate/dicaprate, butyloctyl salicylate, hydrogenated poly (C6-14 olefin), hydrogenated polydecene, cetyl ethylhexanoate, tribehenin, tricaprylin, diethoxyethoxymethyl sulfate. Nate, etc., and the vegetable oils include olive oil, jojoba seed oil, avocado oil, macadamia seed oil, rosehip oil, meadow foam seed oil, tea tree leaf oil, vegetable squalane, vegetable squalane, grape seed oil, rice bran oil, Sweet almond oil, American hazelnut oil, sea buckthorn oil, camellia oil, apricot oil, palm oil, sunflower seed oil, baja oil, etc. The animal oils include horse fat, mink oil, egg yolk oil, animal squalane, and animal oil. Squalene, etc., and the mineral oil includes mineral oil, isododecane, polybutene, petrolatum, etc., but is not limited thereto.

According to one embodiment, the cosmetic composition may include silicone oil and non-silicone oil. Specifically, the weight ratio of the silicone oil and the non-silicone oil contained in the cosmetic composition is about 1:1.2 to 3, about 1:1.3 to 3, about 1:1.3 to 2.5, about 1:1.4 to 2.5, and about 1. : 1.4 to 2.4, about 1:1.5 to 3, about 1:2 to 3, about 1:2 to 2.5, about 1:2.2 to 2.5, or about 1:2.3 to 2.4. According to one embodiment, when the weight ratio of the silicone oil and the non-silicone oil included in the cosmetic composition is outside the above numerical range, the effect of the cosmetic composition upon application to the skin (e.g., transfer speed, degree of transfer, etc.) , properties such as spreadability, glossiness (or gradual increase in glossiness after application), moisture retention (moisturizing power), or coloring power, feeling of use, or formulation stability may be significantly reduced.

The silicone oil may be included in an amount of about 10 to 40% by weight or about 10 to 30% by weight based on the total weight of the cosmetic composition, but is not limited thereto. Additionally, the non-silicone oil may be included in an amount of about 25 to 60% by weight or about 25 to 50% by weight based on the total weight of the cosmetic composition, but is not limited thereto. According to one embodiment, when the content of the silicone oil and/or the content of the non-silicone oil is outside the numerical range, the transfer effect (e.g., transfer speed, transfer degree, etc.) and spreadability exhibited by the cosmetic composition when applied to the skin. , properties such as glossiness (or gradual increase in glossiness after application), moisture retention (moisturizing power), or coloring power, feeling of use, or formulation stability may be significantly reduced.

The total content of the oil contained in the cosmetic composition is about 30 to 80% by weight, about 30 to 75% by weight, about 30 to 70% by weight, about 35 to 80% by weight, about It may be 35 to 75% by weight, or about 35 to 70% by weight, but is not limited thereto. According to one embodiment, when the total content of the oil contained in the cosmetic composition is outside the above numerical range, the cosmetic composition exhibits the skin transfer effect (e.g., transfer speed, transfer degree, etc.), spreadability, moisture, Properties such as glossiness (or gradual increase in glossiness after application), moisture retention (moisturizing power), or coloring power, feeling of use, or formulation stability may be significantly reduced.

In addition, according to one embodiment, the total content of the oil contained in the cosmetic composition is about 45% by weight or more, about 45 to 80% by weight, about 45 to 75% by weight, or In the case of about 45 to 70% by weight, the cosmetic composition exhibits the skin transfer effect when applied to the skin (e.g., transfer speed, transfer degree, etc.), spreadability, gloss (or gradual increase in gloss after application), moisture retention (moisturizing power), or Characteristics such as coloring power, feeling of use, or formulation stability may be further increased.

The term “surfactant” refers to a substance that is activated at the surface (surface or interface) where substances of different properties meet. Specifically, a surfactant is a substance that allows two or more types of substances that do not mix in nature, such as water and oil, to be mixed uniformly. It is defined as having the property of easily gathering at the interface and significantly changing the properties of the interface. . A surfactant acts to lower the interfacial tension or surface tension of different substances at the interface, and is a substance that contains both hydrophilic and hydrophobic (or lipophilic) groups in one molecule structure. The surfactant may include natural surfactant and/or synthetic surfactant. The surfactant may include one or more selected from the group consisting of anionic surfactant, cationic surfactant, ampohteric surfactant, and nonionic surfactant. there is.

Specifically, the surfactant included in the cosmetic composition may include an oil-in-water (O/W type) emulsifier, a water-in-oil (W/O type) emulsifier, or a combination thereof.

The oil-in-water emulsifier refers to an emulsifier suitable for producing an oil-in-water (O/W) type formulation, that is, a formulation in which oil is dispersed in water. For example, it may refer to an emulsifier with an HLB (Hydrophilic Lipophilic Balance) value of about 8 to 18, but is not limited thereto.

The oil-in-water emulsifier may include, but is not limited to, polysorbate emulsifiers, alcohol emulsifiers, polyglyceryl emulsifiers, etc. Specifically, the oil-in-water emulsifier is polysorbate 60, polysorbate 80, polysorbate 85, polysorbate 20, behenyl alcohol, cetearyl alcohol, ceteareth-20, PEG-8 Dioleate, Sorbitan Laurate. , PEG-40 Sorbitan Peroleate, Laureth-4, PEG-7 Glyceryl Cocoate, PEG-20 Almond Glycerides, PEG-25 Hydrogenated Castor Oil, Stearamide MEA, Glyceryl Stearate (and) PEG-100 Stearate, PEG-7 Olivate, Cetearyl Glucoside , PEG-8 Oleate, Polyglyceryl-3 Methyglucose Distearat, Oleth-10, Oleth-10 / Polyoxyl 10 Oleyl Ether NF, Ceteth-10, PEG-8 Laurate, Cocamide MEA, Isosteareth-20, PEG-60 Almond Glycerides, PEG- It may include, but is not limited to, one or more selected from the group consisting of 20 Methyl Glucose Sesquistearate, Oleth-20, Steareth-20, Steareth-21, Ceteth-20, Isoceteth-20, and Laureth-23.

According to one embodiment, the oil-in-water emulsifier may be included in an amount of about 2.2 to 3.3% by weight or about 2.5 to 3% by weight based on the total weight of the cosmetic composition, but is not limited thereto. According to one embodiment, when the content of the oil-in-water emulsifier contained in the cosmetic composition is outside the above numerical range, the cosmetic composition exhibits the image transfer effect upon application to the skin (e.g., transfer speed, transfer degree, etc.), spreadability, Characteristics such as moisture, gloss (or gradual increase in gloss after application), moisture retention (moisturizing power), or coloring power, feeling of use, or formulation stability may be significantly reduced.

The water-in-oil emulsifier refers to an emulsifier suitable for producing a water-in-oil (W/O) type formulation, that is, a formulation in which water is dispersed in oil. For example, it may refer to an emulsifier with an HLB value of about 2 to 6, but is not limited thereto.

The water-in-oil emulsifier may include, but is not limited to, an alkyl dimethicone emulsifier, a polyether modified silicone emulsifier, a polyglyceryl ester emulsifier, a sugar ester emulsifier, and a polyglyceryl modified silicone emulsifier. Specifically, the water-in-oil emulsifier is cetyl PEG/PPG-10/1 dimethicone, sorbitan isostearate, Sorbitan Sesquioleate, Glyceryl Stearate, Lecithin, Sorbitan Oleate, Sorbitan Monostearate NF, Sorbitan Stearate, Steareth- 2, Oleth-2, Glyceryl Laurate, Ceteth-2, PEG-30 Dipolyhydroxystearate, Glyceryl Stearate SE, Sorbitan Stearate (and) Sucrose Cocoate, PEG-4 Dilaurate, Cetyl PEG/PPG-10/1 dimethicone, Lauryl PEG-10 Tris (Trimethylsiloxy)silylethyl Dimethicone, PEG-10 dimethicone, Polyglyceryl-4 isostearate, Polyglyceryl-6 polyricinoleate, Sorbitan olivate, Polyglyceryl-3 polydimethylsiloxyethyl dimethicone, and Cetyl Diglyceryl Tris(Trimethylsiloxy)silylethyl Dimethicone. It can be done, but is not limited to this.

According to one embodiment, the water-in-oil emulsifier may be included in an amount of about 4.2 to 5.3% by weight or about 4.3 to 5% by weight based on the total weight of the cosmetic composition, but is not limited thereto. According to one embodiment, when the content of the water-in-oil emulsifier contained in the cosmetic composition is outside the above numerical range, the cosmetic composition exhibits the image transfer effect upon application to the skin (e.g., transfer speed, transfer degree, etc.), spreadability, Characteristics such as moisture, gloss (or gradual increase in gloss after application), moisture retention (moisturizing power), or coloring power, feeling of use, or formulation stability may be significantly reduced.

The total content of the surfactant included in the cosmetic composition is about 2 to 10% by weight, about 2 to 9% by weight, about 2 to 8% by weight, about 3 to 10% by weight, based on the total weight of the cosmetic composition. About 3 to 9% by weight, about 3 to 8% by weight, about 4 to 10% by weight, about 4 to 9% by weight, about 4 to 8% by weight, about 5 to 10% by weight, about 5 to 9% by weight, about 5 to 8 wt.%, about 6 to 10 wt.%, about 6 to 9 wt.%, about 6 to 8 wt.%, about 6.4 to 10 wt.%, about 6.4 to 9 wt.%, or about 6.4 to 8 wt.%. There is, and it is not limited to this.

The surfactant included in the cosmetic composition may further include, but is not limited to, one or more surfactants selected from the group consisting of an antifoaming agent, a dispersing agent, a wetting agent, and a solubilizing agent. Appropriate amounts of the antifoaming agent, dispersing agent, wetting agent, and solubilizing agent according to specific types and formulation characteristics are generally known in the art.

The HLB (Hydrophilic Lipophilic Balance) value refers to a value used as a measure of the degree of hydrophilicity and lipophilicity of a surfactant. Definitions and calculation methods of HLB values can be found in, for example, W. C. Griffin, J. Soc. Cosmetic Chem., volume 5,249 (1954)] and K. H. Schrader, Grundlagen und Rezepturen der Kosmetika [Fundamentals and formulations of cosmetics], Huethig Verlag, 2nd edition, 1989. For example, the Griffin formula for calculating HLB for nonionic surfactants developed in 1954 is as follows.

[ceremony]

HLB = 20 * M _h / M

where M _h is the molecular mass of the hydrophilic part of the molecule, and M is the mass of the entire molecule. When calculated using this formula, a value between 0 and 20 is obtained. If the HLB value is completely 0, it means that it is a completely lipophilic/hydrophobic molecule, and if the HLB value is 20, it means that it is a completely hydrophilic/oleophobic molecule. Additionally, the respective HLB values for numerous types of surfactants are generally known in the art.

The surfactant contained in the cosmetic composition may be two or more types (e.g., 2 to 10 types or 2 to 5 types), and the two or more types of surfactants contained in the cosmetic composition (e.g., HLB value The weighted average HLB value of two or more surfactants is about 6.6 to 8.9, about 7 to 8.9, about 7 to 8.8, about 7 to 8.7, about 7.1 to 8.9, about 7.1 to 8.8, about 7.1 to about 7.1. 8.7, about 7.2 to 8.9, about 7.2 to 8.8, about 7.2 to 8.7, about 7.3 to 8.9, about 7.3 to 8.8, or about 7.3 to 8.7. According to one embodiment, when the weighted average HLB value of the two or more types of surfactants included in the cosmetic composition is outside the numerical range, the rolling effect (e.g., rolling speed, rolling degree, etc.) exhibited by the cosmetic composition when applied to the skin. ), properties such as spreadability, moisture, glossiness (or gradual increase in glossiness after application), moisture retention (moisturizing power), or coloring power, feeling of use, or formulation stability may be significantly reduced.

The weighted average HLB value can be derived by calculating a weighted average considering the individual HLB values and amounts of two or more types of surfactants included in the cosmetic composition. For example, the weighted average HLB value for two or more surfactants (A ¹ , A ² , A ³ , ......) included in the cosmetic composition can be calculated using the following equation.

[ceremony]

According to one embodiment, in order to adjust the weighted average HLB value of two or more types of surfactants included in the cosmetic composition to about 6.6 to 8.9, the cosmetic composition contains polysorbate 60, an oil-in-water emulsifier, as a surfactant. and ceteareth-20, and cetyl PEG/PPG-10/1 dimethicone and sorbitan isostearate, which are water-in-oil emulsifiers, and the polysorbate 60 is based on the total weight of the cosmetic composition. and about 1.7 to 2.7% by weight or about 2 to 2.5% by weight, and the ceteareth-20 is included at about 0.1 to 1% by weight or about 0.3 to 0.7% by weight based on the total weight of the cosmetic composition. Cetyl PEG/PPG-10/1 dimethicone is included in an amount of about 2.3 to 3.3% by weight or about 2.5 to 3% by weight based on the total weight of the cosmetic composition, and the sorbitan isostearate is added to the total weight of the cosmetic composition. It may contain about 1 to 3% by weight or about 1.3 to 2% by weight, but is not limited thereto.

The aqueous component (i.e., water-soluble component) included in the cosmetic composition may include, but is not limited to, any one or more selected from the group consisting of purified water, polyol, water-soluble pigment, and water-soluble polymer.

The polyol is glycerin, diglycerin, polyglycerin, Glycereth-26, PEG-32, Dipropylene Glycol, Methyl Glucose-20, PEG-8, PEG-75, Propylene Glycol, Butylene Glycol. It may be one or more selected from the group consisting of lycol, raffinose, inositol, sorbitol, maltitol, and methylgluceth-10, but is not limited thereto. The polyol may be included in an amount of about 2 to 10% by weight, about 3 to 7% by weight, or about 4 to 6% by weight based on the total weight of the cosmetic composition, but is not limited thereto.

The water-soluble polymer can be used to stabilize emulsions in O/W type formulations. Therefore, as the water-soluble polymer, polymers known in the art to have O/W emulsifying ability can be used, but are not limited thereto. Specifically, the water-soluble polymer is carboxyvinyl polymer, acrylate/alkyl acrylate cross polymer with 10 to 30 carbon atoms, carboxy methyl cellulose, sodium polyacrylate, acrylate/acrylamide copolymer, polyacrylamide, and ammonium acryloyldi. Methyl Taurate/VP Copolymer, Hydroxyethy Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Sodium Acrylate/Sodium Acryloyl Dimethyl Taurate Copolymer, Sodium Acrylate/Acryloyl Dimethyl Taurate /dimethyl acrylamide crosspolymer, acrylate/behenes-25 methacrylate copolymer, ammonium acryloyldimethyltaurate/behenes-25 methacrylate crosspolymer, PEG-150/decyl alcohol/SMDI Co. Polymer, Acrylate/C12-22 Alkyl Methacrylate Copolymer, Acrylate/Steareth-20 Methacrylate Copolymer, Acrylate/Steareth-20 Methacrylate Crosspolymer, Acrylate/Stearyl Methacrylate Copolymer Polymer, sodium acrylate copolymer, acrylate/VP copolymer, acrylate/stearyl methacrylate copolymer, acrylate/C10-30 alkyl methacrylate copolymer, acrylamide/sodium acrylate copolymer, acrylate Copolymer, potassium acrylate/C10-30 alkyl acrylate crosspolymer, polyacrylate crosspolymer-6 and ammonium polyacrylate, hydroxyethylcellulose, microcrystalline cellulose, and cellulose gum. There may be more than one, but it is not limited thereto. The water-soluble polymer may be included in an amount of about 0.1 to 5% by weight, about 0.3 to 5% by weight, about 0.3 to 3% by weight, about 1 to 3% by weight, or about 1.5 to 2.5% by weight based on the total weight of the cosmetic composition. There is, and it is not limited to this. According to one embodiment, in the cosmetic composition, by including the water-soluble polymer within the above numerical range, the water phase can be appropriately thickened, and as a result, small and stable emulsified particles are generated in the O/W type formulation even though the inner phase has a high content. This can further increase formulation stability. Therefore, according to one embodiment, when the content of the water-soluble polymer contained in the cosmetic composition is outside the above numerical range, the image transfer effect, feeling of use, or formulation stability of the cosmetic composition may be reduced.

The water-soluble pigment may include, but is not limited to, any one or more selected from the group consisting of Red No. 227, Red No. 104 (1), Yellow No. 5, Yellow No. 4, Blue No. 1, and Orange No. 205. . The water-soluble pigment may be included in an amount of about 0.1 to 1% by weight or about 0.2 to 0.5% by weight based on the total weight of the cosmetic composition, but is not limited thereto. According to one embodiment, when the content of the water-soluble pigment contained in the cosmetic composition is outside the above numerical range, the image transfer effect, feeling of use (eg, coloring power), or formulation stability of the cosmetic composition may be reduced. In addition, according to one embodiment, the cosmetic composition may further include an inorganic pigment (eg, titanium dioxide, red iron oxide, black iron oxide, etc.) that is applicable to the water phase and has no coloring power in order to provide an appearance color. The content of the inorganic pigment may be adjusted to about 0.1 to 1.5% by weight based on the total weight of the cosmetic composition, depending on the color to be mixed, but is not limited thereto.

The total content of the water-soluble components (i.e., water-soluble components excluding oil-soluble components (i.e., fat-soluble components) and surfactants) contained in the cosmetic composition is about 10 to 70% by weight, about 20%, based on the total weight of the cosmetic composition. It may be from 60% by weight, or about 20 to 50% by weight, but is not limited thereto. According to one embodiment, when the total content of the aqueous phase components included in the cosmetic composition is outside the above numerical range, the image transfer effect, feeling of use, or formulation stability of the cosmetic composition may be reduced.

The cosmetic composition may further include a preservative or preservative. The preservatives or preservatives include phenoxyethanol, 1,2-hexanediol, pentylene glycol, hydroxyacetophenone, ethylhexylglycerin, chlorophenesin, chlorhexidine digluconate, sodium hydroacetate, and imidazoly. Dinylurea, tricholic acid, methylparaben, propylparaben, butylparaben, ethylparaben, isobutylparaben, triclocarban, etc., but are not limited thereto. The content of the preservative or preservative may be appropriately adjusted to exhibit a preservative or preservative effect on the cosmetic composition based on general information known in the art, depending on the characteristics of the selected preservative or preservative and the characteristics of the cosmetic composition.

The cosmetic composition may have an oil-in-water (O/W) type formulation. The oil-in-water (O/W) type formulation may refer to a formulation in which oil phase components (eg, fat-soluble components including oil, etc.) are stably dispersed in the form of an emulsion within the water phase.

The cosmetic composition may exhibit an electrostatic effect when applied to the skin. Specifically, the phase transition effect refers to the effect in which the formulation of a cosmetic composition undergoes a phase transition due to a specific stimulus. For example, the cosmetic composition basically has an O/W type formulation, but the phase transition effect of the formulation of the cosmetic composition applied to the skin to a W/O type formulation occurs due to the physical force and skin temperature applied when applied to the skin. It can be expressed.

Therefore, according to one embodiment, the cosmetic composition adjusts the weight ratio of the silicone oil and the non-silicone oil, the total content of the oil, the weighted average HLB value of the mixed surfactant, etc., and the water-soluble polymer to stabilize the emulsion. By using, etc., it has an oil-in-water (O/W) type formulation that exhibits significantly excellent formulation stability during manufacturing, and when applied to the skin, it is converted into a water-in-oil (W/O) type formulation due to skin temperature and physical force. It can exhibit rapid metastasis characteristics. Because of this, the cosmetic composition can exhibit a significantly excellent feeling of use (spreadability, moisture, moisturizing power, coloring power, gloss, etc.).

The cosmetic composition may be used as a cosmetic composition for lips, but is not limited thereto.

The cosmetic composition may further include additives known in the art to the extent that they do not impair the image transfer effect. For example, the cosmetic composition includes purified water, carrier, emulsifier, dispersant, moisturizer, preservative, skin conditioning agent, sunscreen, antioxidant, surfactant, preservative, chelating agent, antioxidant, disinfectant, stabilizer, pH adjuster, lubricant, It may further include, but is not limited to, additives selected from the group consisting of solubilizers, solvents, colorants (pigments), thickeners (e.g., water-soluble polymers), and combinations thereof. In addition, the cosmetic composition contains, as an additive, a substance that can supplementally provide essential nutrients to the skin or a substance that improves skin condition, such as a functional substance that has effects such as moisturizing or improving dead skin cells, improving wrinkles or whitening, and blocking ultraviolet rays. More may be included. The cosmetic composition may further include auxiliaries including, but not limited to, fragrances (e.g., natural fragrances or cosmetic fragrances) or plant extracts.

The content of the above additives or auxiliaries can be easily selected by a person skilled in the art, and the mixing amount may be included in an amount generally used in the cosmetics or dermatological fields. There are no particular restrictions on the method of adding the additives or auxiliaries, so they can be added to the cosmetic composition in an appropriate manner. For example, some may be added to the oil phase or water phase, and some may be added after the emulsion is prepared.

The cosmetic composition can be prepared in any formulation commonly prepared in the art using methods known in the art. Specifically, the cosmetic composition is formulated to be suitable for liquid type, solid type, balm, cream, gel, lipstick, paste, powder, eye shadow, eyeliner, mascara, cheek rouge, liquid foundation, etc. It can be used, but is not limited thereto. Preferably, when the cosmetic composition is manufactured for lips, it may have a lipstick, lip balm, lip cream, lip pencil, liquid rouge, or lip gloss formulation, but is not limited thereto.

Another aspect is a method of producing the cosmetic composition, comprising mixing an aqueous phase and an oil phase, wherein the aqueous phase includes a water-soluble component and a surfactant, the oil phase includes an oil and a surfactant, and the oil includes a silicone A method for producing the cosmetic composition comprising oil and non-silicone oil is provided.

The surfactant may include an oil-in-water (O/W type) emulsifier, a water-in-oil (W/O type) emulsifier, or a combination thereof, but is not limited thereto.

The water-soluble component may include, but is not limited to, any one or more selected from the group consisting of purified water, polyol, water-soluble dye, and water-soluble polymer.

The method may further include adding and mixing additives and/or auxiliaries. The method may further include cooling and/or defoaming the obtained mixture, or defoaming the obtained mixture after cooling.

In the above method, the specific type, mixing weight percentage, or mixing weight ratio of each component (component) is as mentioned in the description of the cosmetic composition.

In the above method, specific manufacturing conditions and methods may be based on conventional techniques, but are not limited thereto. Meanwhile, selectively added additives and/or auxiliaries may be added at an appropriate stage among the above steps, as needed, into the water phase and/or oil phase, or after the emulsion is prepared. there is.

Among the terms or elements mentioned in the above manufacturing method, those mentioned in the description of the composition are understood to be the same as previously mentioned in the description of the composition.

According to the cosmetic composition according to one aspect, it has an O/W type formulation and is applied lightly while feeling moisture without being oily when applied to the skin (e.g., lips), the water-soluble pigment quickly colors the skin, and the physical effect applied upon application As the formulation of the composition applied to the skin is quickly transformed into a W/O type due to the force and skin temperature, an oil film is formed on the surface of the skin, which gradually increases the gloss and improves moisturizing and coloring properties by preventing moisture loss. It is maintained at an excellent level and can provide a significantly better feeling of use.

In addition, according to the cosmetic composition according to one aspect, a stable O/W type formulation is maintained without phase separation even when stored at high temperature for a long period of time, showing significantly excellent formulation stability.

Figure 1 is an image showing the results of visually confirming the transfer effect of the cosmetic composition by photographing the subject's lips immediately after application and about 1 minute after application after applying the cosmetic composition according to one embodiment to the lips of the subject. .

Hereinafter, the present invention will be described in more detail through experimental examples and examples. However, these experimental examples and examples are for illustrative purposes only and the scope of the present invention is not limited to these experimental examples and examples.

In addition, unless there is a special definition in this specification, all scientific and technical terms used in this specification may have the same meaning as commonly understood by a person skilled in the art in the technical field to which the present invention pertains.

Example 1. - Example 5. Preparation of cosmetic composition

A cosmetic composition for lips that exhibits a phase transition effect was prepared.

Specifically, a cosmetic composition for lips in an oil-in-water (O/W) type formulation containing water-soluble ingredients, oil (silicone oil and non-silicone oil), and surfactant was prepared, wherein the silicone oil and non-silicone oil were prepared. Seven types of cosmetic compositions for lips (Example 1-5 and Comparative Example 1-2) with different contents (% by weight) or weight ratio were prepared, and the specific ingredient contents of each cosmetic composition are shown in Table 1 below.

The specific method for producing the cosmetic composition of Table 1 includes the following steps, and the specific content of each ingredient is shown in Table 1:

(1) Adding the components of PART A and PART B of Table 1 to the manufacturing unit and mixing them with stirring at a temperature of about 65 to 75°C (specifically, about 70°C);

(2) Adding the ingredients of PART C of Table 1 to a separate manufacturing unit and mixing them with stirring at a temperature of about 70 to 80°C (specifically, about 75°C);

(3) slowly adding the mixture obtained in step (2) to the mixture obtained in step (1) and emulsifying it by mixing with stirring at a temperature of about 65 to 70°C;

(4) When the temperature of the mixture obtained in step (3) is about 45 to 55 ℃ (specifically, about 45 to 50 ℃), add the components of PART D of Table 1 to the mixture obtained in step (3). After adding, mixing while stirring at a temperature of about 45 to 55°C (specifically, about 50°C);

(5) adding the ingredients of PART E of Table 1 to the mixture obtained in step (4) above and mixing them with stirring at a temperature of about 35 to 40°C; and

(6) Cooling the mixture obtained in step (5) to about 25 to 35°C (specifically, about 30°C) and then defoaming.

In addition, it was found that the manufactured cosmetic compositions of the examples in Table 1 maintained a stable formulation without phase separation, showing excellent formulation stability.

Experimental Example 1. Confirmation of image transfer effect of cosmetic composition

The transfer effect of the cosmetic composition of Table 1 prepared above on a flat plate and on the skin was confirmed.

Specifically, about 1 g of each of the cosmetic compositions in Table 1 prepared above was dropped on a slide glass and rubbed with a finger for about 15 seconds, and then the contact angle was measured and summarized in Table 2 below. The contact angle was measured using a contact angle measuring device (Dropmaster DM500, Kyowa Interface Science Co., Ltd.).

Comparative Example 1 Comparative Example 2 Example 1 Example 2 Example 3 Example 4 Example 5
Contact angle (°) 37.1 39.2 43.6 47.5 51.2 54.4 61.2

As a result, as shown in Table 2, Comparative Example 1, Comparative Example 2, and Example 1 were confirmed to have different contact angles as the weight ratio of silicone oil and non-silicone oil changed, even though the total oil content (% by weight) was the same. In particular, it was confirmed that the contact angle of Example 1 was significantly increased compared to Comparative Examples 1 and 2. In addition, in the case of Examples 3 to 5, where the weight ratio of silicone oil and non-silicone oil was kept the same as Example 1 and the total oil content was increased to about 45% by weight or more, it was confirmed that the contact angle increased more significantly.

In the above experiment, as the contact angle increases after flat application, it means that the cosmetic composition is transferred from the O/W type formulation to the W/O type formulation more quickly and strongly after flat application. Through the above experiment, silicone oil and In the case of the cosmetic composition of the Examples in Table 1 where the weight ratio of silicone oil is about 1:1.2 to 3, it quickly transfers more strongly from the O/W type formulation to the W/O type formulation when applied on a flat surface, showing an excellent transfer effect, while the silicone oil In the case of the cosmetic composition of the comparative example in Table 1 where the weight ratio of oil and non-silicone oil is outside the above numerical range (weight ratio of silicone oil and non-silicone oil: Comparative Example 1 = about 1: 1.115; Comparative Example 2 = about 1: 3.45) , it was confirmed that the image transfer effect was significantly reduced compared to the cosmetic composition of the above example when applied to a flat plate. In addition, through the above experiment, while maintaining the weight ratio of silicone oil and non-silicone oil at about 1:1.2 to 3, the total oil content was about 45% by weight or more (specifically, about 45 to 80% by weight, about 45 to 45% by weight). In the case of the cosmetic compositions of Examples 3 to 5 in Table 1, where the total oil content is 75% by weight, or about 45 to 70% by weight, flat application compared to the cosmetic compositions of Examples 1 to 2 in Table 1, where the total oil content is less than about 45% by weight. It was confirmed that the transfer effect was significantly increased as the transfer from the O/W type formulation to the W/O type formulation occurred more quickly and more strongly.

In addition, after applying each of the cosmetic compositions in Table 1 prepared above to the lips of a subject, the lips of the subject were photographed immediately after application and about 1 minute after application to visually evaluate the transfer effect of the cosmetic composition.

As a result, as shown in Figure 1, when the cosmetic composition of Example 1 in Table 1 was applied to the lips, the lips were well colored with pigment immediately after application, but a relatively low gloss was felt, whereas after application, the lips were well colored with pigment. After about 1 minute, it was confirmed that not only was the coloring on the lips intact, but a significantly increased glossiness was felt. On the other hand, when each of the cosmetic compositions of Comparative Examples 1 and 2 of Table 1 was applied to the lips, it was confirmed that the level of gloss increase over time immediately after application was significantly lower than that of Example 1. Through this, in the case of the cosmetic composition of the examples in Table 1, where the weight ratio of silicone oil and non-silicone oil is about 1:1.2 to 3, it exhibits high coloring power due to the characteristics of the O/W type formulation when applied to the skin (e.g., lips), resulting in excellent skin coloring. It was found that it showed spreadability and was converted to a W/O type formulation over time after application to the skin (e.g., lips), maintaining coloring power and significantly increasing gloss, which means that the cosmetic compositions of the examples in Table 1 It was found that this was due to the excellent electroplating effect caused by the application shown. On the other hand, in the case of the cosmetic composition of the comparative example in Table 1 where the weight ratio of silicone oil and non-silicone oil is outside the above numerical range, the transfer effect due to application is lower, so when applied to the skin (e.g., lips), the glossiness changes over time. It was found that the level of increase was significantly lower than that of the example.

Experimental Example 2. Sensory evaluation of cosmetic composition

Sensory evaluation was performed on the cosmetic compositions shown in Table 1 prepared above.

Specifically, 35 subjects (7 groups of 5 each) with an average age of 28.5 years were asked to use each of the cosmetic compositions in Table 1 prepared above on their lips, and then a sensory evaluation was performed on the perceived transfer speed and feeling of use. . According to the following evaluation criteria, the sensory characteristics and overall satisfaction with regard to the perceived image transfer speed, spreadability, moisture immediately after application, change in gloss after application, moisture retention 1 hour after application, and coloring power were evaluated according to the following evaluation criteria, and the results were evaluated. The average values are shown in Table 3 below. The evaluation criteria are as follows:

The perceived speed of change of phase of the cosmetic composition applied to the lips was selected from 1 to 5 points (within 10 seconds after application: 5 points; within 20 seconds after application: 4 points; 30 seconds after application) Within: 3 points; within 40 seconds after application: 2 points; within 1 minute after application: 1 point). For applicability, the score was 1 to 5, with higher scores given for higher satisfaction. For the change in gloss, the greater the increase in gloss after application, the higher the score is given to a score of 1 to 5. For moisture immediately after application, moisture retention 1 hour after application, and coloring power, the stronger the characteristic is felt, the higher the score. The highest score was given by allowing students to choose between 1 and 5 points.

Comparative Example 1 Comparative Example 2 Example 1 Example 2 Example 3 Example 4 Example 5 Perceived transfer speed One One 3 3 4 4 5 Spreadability 3 3 3 3 4 5 5 Immediately after application
moisture 4 4 4 4 4 4 4 Change in gloss after application One 2 3 3 4 5 5 Moisture retention 1 hour after application 2 2 3 3 4 4 5 Tinting power 3 3 4 4 5 5 5

As a result, as shown in Table 3, the cosmetic compositions of the examples in Table 1 have better properties compared to the cosmetic compositions of the comparative examples in Table 1 in terms of perceived image transfer speed, change in gloss after application, moisture retention after 1 hour of application, and coloring power. It was confirmed that it had a feeling of use, and in particular, the cosmetic compositions of Examples 3 to 5 of Table 1 were compared to Example 1 of Table 1 in terms of perceived image transfer speed, spreadability, change in gloss after application, moisture retention 1 hour after application, and coloring power. It was confirmed that it had better properties and feeling of use compared to the cosmetic compositions of to 2 and Comparative Examples 1 to 2.

Through this experimental example, in the case of the cosmetic composition of the examples in Table 1 where the weight ratio of silicone oil and non-silicone oil is about 1:1.2 to 3, it basically has an O/W type formulation, so it is not oily when applied to the lips. It is applied lightly with a feeling of moisture, and the water-soluble pigment quickly colors the lips. The formulation of the composition applied to the lips quickly changes to a W/O type formulation due to the physical force applied during application and the temperature of the lips. It was confirmed that a transition phenomenon occurred, where an oil film was formed on the surface of the lips, which gradually increased the gloss, and that moisture loss was prevented and moisturizing and coloring properties were maintained at an excellent level. On the other hand, in the case of the cosmetic composition of the comparative example in Table 1 in which the weight ratio of silicone oil and non-silicone oil is outside the above numerical range, the above-described image transfer effect is reduced, so the degree of oil film formation on the surface of the lips after application is low, resulting in glossiness. It was confirmed that the increase level was at a lower level, and the moisture retention (moisturizing power) and coloring power were also at a lower level compared to the cosmetic composition of the above example. In addition, while maintaining the weight ratio of silicone oil and non-silicone oil at about 1:1.2 to 3, the total oil content is about 45% by weight or more (specifically, about 45 to 80% by weight, about 45 to 75% by weight, or In the case of the cosmetic compositions of Examples 3 to 5 of Table 1 (about 45 to 70% by weight), the transfer effect as described above is further increased compared to the case where the total oil content is less than about 45% by weight, and the perceived transfer speed, spreadability, It was confirmed that it had further improved excellent properties and feeling of use in terms of gloss change after application, moisture retention 1 hour after application, and coloring power.

Example 6. - Example 7. Preparation of cosmetic composition

Cosmetic compositions with different weighted average HLB values of the mixed surfactants included in the cosmetic composition were prepared.

Specifically, the oil (silicone oil and non-silicone oil) content is applied equally at approximately 68.5% by weight, the total content of surfactant is also applied equally at approximately 7.5% by weight, and the contents of the remaining ingredients are also applied equally. Four types of cosmetic compositions in which the weighted average HLB value of the mixed surfactant contained in the composition is varied by changing only the content of the oil-in-water emulsifier and water-in-oil emulsifier included in the surfactant (Example 6-7 and comparison Example 3-4) was prepared, and the specific ingredient contents of each cosmetic composition are shown in Table 4 below. The specific method of manufacturing the cosmetic composition is the same as the manufacturing method of the cosmetic composition for lips in Examples 1 to 5.

In addition, the weighted average HLB (Hydrophilic Lipophilic Balance) value of the mixed surfactants included in the cosmetic composition of Table 4 was calculated. Specifically, polysorbate 60 (A) and ceteareth-20 (B), which are oil-in-water emulsifiers, and cetyl PEG/PPG-10/1 dimethicone (C) and sorbitan iso, which are water-in-oil emulsifiers. The weighted average HLB value of the mixed surfactant contained in the cosmetic composition was calculated by substituting the content and HLB value of each stearate (D) into the equation below.

[ceremony]

As a result, the weighted average HLB value of the mixed surfactant included in the cosmetic composition of Comparative Example 3 was about 6.4 to 6.5, and the weighted average HLB value of the mixed surfactant included in the cosmetic composition of Example 6 was about 7.3 to 7.4. , the weighted average HLB value of the mixed surfactant included in the cosmetic composition of Example 7 was about 8.1 to 8.2, and the weighted average HLB value of the mixed surfactant included in the cosmetic composition of Comparative Example 4 was confirmed to be about 9 to 9.1. .

Experimental Example 3. Evaluation of formulation stability of cosmetic composition

The formulation stability of the cosmetic compositions in Table 4 prepared above was evaluated.

Specifically, the cosmetic composition of Table 4 prepared above was stored at temperature conditions of about 25°C, about 45°C, and cycle (about -4°C to 45°C), and then observed to determine whether the water phase and the oil phase were separated. Formulation stability was evaluated, and the results are shown in Table 5 below (X: phase separated; O: stable without phase separation).

Comparative Example 3 Example 6 Example 7 Comparative Example 4 25℃ X O O O 45℃ - 1 month X O O X 45℃ - 2 months X O O X CYCLE - 1 WEEK X O O X

As a result, as shown in Table 5, in the case of the cosmetic compositions of Examples 6 and 7 of Table 4, where the weighted average HLB value of the mixed surfactant contained in the composition is about 6.6 to 8.9, when stored at high temperature for a long period of time It was confirmed that a stable O/W type formulation was maintained without phase separation and had significantly excellent formulation stability. On the other hand, in the case of the cosmetic composition of Comparative Example 3 in Table 4, where the weighted average HLB value of the mixed surfactant contained in the composition is less than about 6.6, a W/O type formulation rather than an O/W type formulation is produced, resulting in phase separation. It was confirmed that viscosity was not formed and that the formulation stability was significantly reduced. In addition, in the case of the cosmetic composition of Comparative Example 4 in Table 4, where the weighted average HLB value of the mixed surfactant contained in the composition was greater than about 8.9, it was confirmed that phase separation occurred when stored at high temperature and formulation stability was significantly reduced.

Through this experimental example, it can be seen that in manufacturing the cosmetic composition, even if the total content of surfactants is applied the same, the weighted average HLB value of the mixed surfactant varies, greatly affecting the stability of the O/W type formulation. The cosmetic compositions of Examples 6 and 7 of Table 4, where the weighted average HLB value of the mixed surfactant was about 6.6 to 8.9, were compared to the cosmetic compositions whose weighted average HLB value of the mixed surfactant was outside the above numerical range. It was found that it had an O/W type formulation showing significantly excellent formulation stability. In addition, these results show that by adjusting the weighted average HLB value of the mixed surfactant by adjusting the content of each type of surfactant, and also increasing the water phase using a water-soluble polymer, the internal phase is high in the O/W type formulation, but small and stable emulsion particles It can be understood as a result of the creation of .

The description of the present invention described above is for illustrative purposes, and those skilled in the art will understand that the present invention can be easily modified into other specific forms without changing the technical idea or essential features of the present invention. will be. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive.

Claims (10)

Contains water-soluble ingredients, oils, and surfactants,
The oil is a cosmetic composition containing silicone oil and non-silicone oil,
The weight ratio of the silicone oil and the non-silicone oil is 1:1.2 to 3,
The oil is contained in an amount of 30 to 80% by weight based on the total weight of the composition,
The cosmetic composition has an oil-in-water (O/W) type formulation.
delete delete The cosmetic composition according to claim 1, wherein the surfactant includes an oil-in-water type (O/W type) emulsifier, a water-in-oil type (W/O type) emulsifier, or a combination thereof.
The cosmetic composition according to claim 1, wherein there are two or more types of surfactants, and the weighted average HLB (Hydrophilic Lipophilic Balance) value of the two or more types of surfactants is 6.6 to 8.9.
The cosmetic composition according to claim 1, wherein the cosmetic composition exhibits an electrostatic effect when applied to the skin.
The cosmetic composition according to claim 1, wherein the water-soluble component includes at least one selected from the group consisting of purified water, polyol, water-soluble pigment, and water-soluble polymer.
delete The cosmetic composition according to claim 1, wherein the cosmetic composition is for lips.
A method for producing the cosmetic composition of any one of claims 1, 4 to 7, and 9,
Comprising the step of mixing the aqueous phase and the oil phase,
The aqueous phase includes a water-soluble component and a surfactant,
The oil phase portion includes oil and surfactant,
A method, wherein the oil includes silicone oil and non-silicone oil,
The weight ratio of the silicone oil and the non-silicone oil is 1:1.2 to 3,
The oil is contained in an amount of 30 to 80% by weight based on the total weight of the composition,
The method wherein the cosmetic composition has an oil-in-water (O/W) type formulation.
.