KR20210050208A - Oil-in-water type cosmetic composition having excellent formulation stability - Google Patents

Abstract

The present invention relates to an oil-in-water type cosmetic composition having excellent formulation stability, and an oily part contains hydrogenated coco-glyceride. Therefore, the cosmetic composition has excellent formulation stability and a positive feeling of use, thereby being implemented as cosmetics of various formulations.

Description

An oil-in-water cosmetic composition with excellent formulation stability {OIL-IN-WATER TYPE COSMETIC COMPOSITION HAVING EXCELLENT FORMULATION STABILITY}

The present invention relates to an oil-in-water cosmetic composition having excellent formulation stability.

In general, cosmetic products are defined as articles used in the human body to add attractiveness by cleansing and beautifying the human body, to change appearance brightly, or to maintain or promote the health of skin and hair. There are various types of cosmetics depending on the purpose, and it is based on helping the skin to perform its normal functions by maintaining the cleanliness, protection and health of the skin.

In the skin, a certain amount of moisture, natural moisturizing factors and sebum components are present in the skin, so the skin itself has moisturizing and protective functions, and keeps the skin healthy. However, the skin has limitations in performing its own normal functions due to external environmental factors, that is, excessive cleaning of the skin, drying, ultraviolet rays, and pollution. This limitation can be solved by using cosmetics, and it can help the skin itself to perform its normal function.

To this end, cosmetics contain various water-soluble ingredients including water for moisture in the skin and oil-soluble ingredients (oil, wax) for sebum at the same time. Emulsion-type cosmetic compositions using an emulsification technique for absorption are widely used.

In general, emulsion-type cosmetic compositions include oil-in-water (O/W), water-in-Oil (W/O), and multi-emulsion W/O/W[(Water- There are formulations such as in-Oil) in Water] and O/W/O [(Oil-in-Water) in Oil].

Among them, an oil-in-water cosmetic composition in which the oil phase, which is the inner phase, is dispersed in the water phase, which is a continuous phase, is preferred by consumers because of its excellent initial moisture and good spreadability, but it is an emulsified composition that forms a thermodynamically unstable system by mixing an oil-soluble component and a water-soluble component. Due to its characteristics, there is a problem that the emulsion stability is weak due to changes in time or temperature. Such low emulsification stability is an important factor directly related to the quality of cosmetics, and several technologies have been developed to stably maintain the oil-in-water emulsion phase.

In general, in the case of a cosmetic composition containing an oil-in-water emulsion, a thickener is used to increase the stability of the formulation. Specifically, the thickener increases the stability of the formulation and helps the cosmetic composition to stably maintain the emulsified phase even at high temperatures or long-term storage. However, if a thickener is used to secure the formulation stability of the composition and the content thereof is increased, stickiness or heaviness is generated, resulting in a poor feeling of use. In addition, when applied to skin with a lot of dead skin or dry skin, the skin may be smeared.

Accordingly, various technologies have been proposed for manufacturing an oil-in-water cosmetic composition having excellent formulation stability and feeling of use without using an existing thickener.

For example, Korean Patent Application Publication No. 10-2019-0103751 is an oil-in-water cosmetic that stabilizes a high content of oil by including a hydrophobically-modified ethoxylated urethane (HEUR) type polymer instead of a conventional viscosity modifier. It discloses that a composition can be provided.

These patents have improved the formulation stability of the oil-in-water cosmetic composition to some extent, but the effect is not sufficient and it is difficult to apply. Accordingly, there is a need for further development of an oil-in-water cosmetic composition that can be applied to various types of cosmetics and has excellent formulation stability and feeling of use.

Republic of Korea Patent Publication 10-2019-0103751 (2019.09.05), an oil-in-water cosmetic composition that stabilizes a high content of oil

Accordingly, the present inventors have conducted various studies to solve the above problem, and as a result of confirming that when hydrogenated coco-glyceride is included in the oil phase, an oil-in-water cosmetic composition having excellent formulation stability and feeling of use can be prepared. Completed.

Accordingly, an object of the present invention is to provide an oil-in-water cosmetic composition with improved feeling of use while exhibiting excellent emulsion stability against time and temperature changes.

In order to achieve the above object, the present invention is an oil-in-water cosmetic composition comprising an aqueous phase portion containing polyhydric alcohol and water and an oil phase portion containing oil and an emulsifier, wherein the oil phase portion is hydrogenated coco-glyceride. The composition is provided.

The hydrogenated coco-glyceride may be included in an amount of 1 to 10% by weight based on 100% by weight of the total oil-in-water cosmetic composition.

The aqueous phase may be one that does not substantially contain one or more thickeners selected from the group consisting of acrylate-based thickeners, carbomer-based thickeners and gums, and starch-based thickeners.

The aqueous phase may further include glycyrrhizinate.

The glycyrrhizinate may include at least one selected from the group consisting of dipotassium glycyrrhizinate, dicalcium glycyrrhizinate, and ammonium glycyrrhizinate.

The glycyrrhizinate may be included in an amount of 0.1 to 1% by weight based on the total 100% by weight of the oil-in-water cosmetic composition.

The oil-in-water cosmetic composition may have a viscosity of 1300 to 4300 cPs at 30°C.

The oil-in-water cosmetic composition may have a pH of 5 to 8.

The oil-in-water cosmetic composition may be one or more formulations selected from the group consisting of solutions, suspensions, emulsions, pastes, gels, creams, lotions, ointments, powders, soaps, cleansing, patches, packs, foundations and sprays.

The oil-in-water cosmetic composition according to the present invention includes hydrogenated coco-glycerides in the oily portion, thereby exhibiting excellent formulation stability without the use of an existing thickener, and excellent feeling of use, so that it can be applied to cosmetics of various formulations.

1 is a photograph showing the results of evaluation of formulation stability according to Experimental Example 1 of the present invention ((a): Comparative Example 1, (b): Example 10).

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

The terms or words used in the specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventor may appropriately define the concept of terms in order to describe his own invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention based on the principle that there is.

The terms used in the present invention are used only to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present invention, terms such as'include' or'have' are intended to designate the presence of features, numbers, steps, actions, components, parts, or a combination thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof does not preclude in advance.

The term "formulation stability" used in the present invention refers to the degree to which the oil-in-water-type cosmetic composition does not collapse at 45° C. and the formulation is maintained, and the formulation is maintained for 1 week or longer, preferably for 2 weeks or longer. It means that the formulation stability is excellent. In addition, the formulation stability is a concept including all of “emulsification stability”, “time stability” and “temperature stability”.

Unless otherwise disclosed in the present invention, the expression “substantially not included” as used herein means that the component is not intentionally added to the composition, but it cannot be excluded from being incorporated in the raw material in trace amounts.

In general, a cosmetic composition in an emulsified form is widely used as a cosmetic because it can realize both advantages including an oil phase and a water phase at the same time.

Particularly, in the case of an oil-in-water cosmetic composition, which is an emulsion formulation in which the continuous phase is an aqueous phase and the dispersed phase is an oil phase, the touch felt when applied to the skin is light and refreshing, and has excellent moisture and application properties. However, in the case of an oil-in-water cosmetic composition, the interface surrounding the dispersed oil phase is mostly in the form of a mono layer, and over time, oily components such as oil are desorbed or precipitated into the aqueous phase, etc. There is a disadvantage in that the formulation stability is low because there is a temperature change at which it is separated.

To this end, in the prior art, a method of improving the stability of the formulation by using an excessive amount of a thickener has been mainly used.However, when trying to maintain the stability of the formulation by this method, negative feelings such as skin irritation and trouble, stickiness, heaviness, etc., and excessive amounts of unnecessary raw materials. Problems such as use occurred.

Accordingly, in the present invention, hydrogenated coco-glyceride is used instead of the thickener included in the existing water phase to stabilize the oil phase in the composition, thereby improving stability over time and temperature, as well as providing an oil-in-water cosmetic composition having an excellent feeling of use.

Specifically, the oil-in-water cosmetic composition according to the present invention is an oil-in-water cosmetic composition in which an oil phase including oil and an emulsifier is discontinuously dispersed in an aqueous phase containing polyhydric alcohol and water, and the oil phase is hydrogenated coco-glyceride. Includes.

In the present invention, the hydrogenated coco-glycerides include a saturated fatty acid having a chain of C12 to 18, thereby stabilizing the oil-soluble component contained in the oil phase, as well as the interaction with the glycyrrhizinate to be described later. By the action, the viscosity of the composition is doubled, so that the oil-in-water cosmetic composition has excellent formulation stability. In addition, the hydrogenated coco-glyceride is a saturated fatty acid of C12 to C18 that is similar to the skin and has a melting point of 30° C. and can be easily absorbed into the skin, thereby improving the feeling of use. In particular, the hydrogenated coco-glyceride contained in the composition according to the present invention is a substitute for existing thickeners such as natural thickeners such as cellulose, gelatin, and xanthan gum or synthetic thickeners such as methylcellulose and carbomer, It has the advantage of not causing skin irritation and deterioration of feeling of use caused by the use of existing thickeners.

The hydrogenated coco-glyceride is hydrogenated coconut acid and is a kind of wax. In addition, the hydrogenated coco-glyceride is a mixture of fatty acids extracted from coconut oil, and is a component made from coconut oil and coconut acid that can be used in cosmetics and personal care products.

The hydrogenated coco-glyceride may be included in an amount of 1 to 10% by weight, preferably 1 to 5% by weight, and more preferably 1 to 3% by weight, based on 100% by weight of the total oil-in-water cosmetic composition. If the content of the hydrogenated coco-glyceride is less than the above range, the effect of improving the formulation stability of the composition cannot be obtained.On the contrary, when the content of the hydrogenated coco-glyceride is less than the above range, the emulsion formulation is hardened and the oil phase content is increased compared to the emulsifier, resulting in deterioration of formulation stability and emulsification It may cause undesirable problems with the flexible feel of use.

The oily part of the oil-in-water emulsion according to the present invention provides a rich nutrient feeling, and includes an oil and an emulsifier in addition to the hydrogenated coco-glyceride described above.

The oil dissolves oil-soluble components, helps to form an interfacial film firmly, and provides a flexible texture when applied to the skin, and an oil commonly used in the relevant technical field may be used.

The type of the oil is not particularly limited, but may be a hydrocarbon-based oil, an ester-based oil, a silicone-based oil, and an animal/vegetable oil.

For example, the oil is polydecene, hydrogenated polydecene, polybutene, hydrogenated polyisobutene, dicaprylyl carbonate, diiso Stearylmalate, butylene glycol dicaprylate/dicaprate, cetyl 2-ethyl hexanoate, triethylhexanoin, Caprylic/capric triglyceride, dicetearyl dimer dilinoleate, diisostearyl malate, dicetearyl dimer dilinoleate ), hexyl laurate, pentaerythrityl tetraethylhexanoate, pentaerythrityl tetraisostearate, octyldodecyl stearoyl stearate (octyldodecyl stearoyl stearate) Pentasiloxane, cyclohexasiloxane, dimethicone, cyclomethicone, phenyl trimethicone, squalane, tamanu oil, macadamia nuts Oil (macadamia nut oil), sunflower seed oil (sunflower seed oil), olive oil (olive oil), evening primrose oil (evening primrose oil), argan oil (argan) oil), apricot oil, sesame oil, orange oil, rosewood oil, bergamot oil, camellia oil, tea tree oil One or more selected from the group consisting of (tea tree oil) and jojoba oil may be used.

The oil may be included in an amount of 5 to 30% by weight, preferably 7 to 25% by weight, based on the total 100% by weight of the oil-in-water cosmetic composition. When the content of the oil is less than the above range, it is difficult to sufficiently dissolve the oil-soluble component. Conversely, when the content of the oil exceeds the above range, it is difficult for the oily components to effectively form emulsified particles, so that dispersion and aging stability of the composition may be deteriorated.

The emulsifier serves to lower the interfacial tension between the water phase and the oil phase, and is commonly used when forming an oil-in-water emulsion in the cosmetic field, and the type is not particularly limited.

For example, the emulsifier is cyclopentasiloxane and PEG/PPG-18/18 dimethicone, glycol stearate, sorbitan sesquioleate. ), glyceryl oleate, glycol distearate, propylene glycol monostearate, glyceryl stearate, sorbitan stearate, PEG -30 dipolyhydroxystearate, PEG-10 dimethicone, cyclopentasiloxane/ PEG.PPG-19.19 dimethicone (cyclopentasiloxane/PEG.PPG-19.19 dimethicone), sorbic acid Sorbitan isostearate, lauryl PEG.PPG-18.18 methicone, cetyl PEG.PPG-10.1 dimethicone, lauryl PEG-PEG- 9 polydimethylsiloxyethyl dimethicone (lauryl PEG-9 polydimethylsiloxyethyl dimethicone), PPG-26-Buteth-26 and PEG-40 hydrogenated castor oil, PEG-30 hydrogenated castor oil, CETEARETH-12, PEG-5 glyceryl stearate, PEG-60 glyceryl isostearate -60 glyceryl isostearate), PEG-50 stearate, PE G-100 stearate, polysorbate 20, polysorbate 80, polyglyceryl-10 pentastearate, sodium stearyl lactate ( sodium stearoyl lactylate), methoxy PEG-114/polyepsilon caprolactone, potassium cetyl phosphate, polysorbate 60, polyglyceryl-10 stea Polyglyceryl-10 stearate, sorbitan olivate, inulin lauryl carbamate, cetearyl olivate/sorbitan olivate, PEG-60 cured Castor oil (PEG-60 hydrogenated castor oil), polyglyceryl-3 methylglucose distearate, PEG-5 rapeseed sterol, sucrose polystearate/hardened poly Isobutine (sucrose polystearate/hydrogenated polyisobutene), C12-20 alkyl glucoside, hydrogenated lecithin, arachidyl glucoside, olive oil PEG-8 esters (olive oil PEG) -8 esters) and sucrose fatty acid esters.

The emulsifier may be included in an amount of 0.1 to 5% by weight, preferably 0.5 to 4% by weight, based on the total 100% by weight of the oil-in-water cosmetic composition. When the content of the emulsifier is less than the above range, the emulsion is not formed or the stability of the composition is deteriorated. Conversely, when the content of the emulsifier exceeds the above range, stickiness and off-flavor of the emulsifier itself are severely generated, which may adversely affect the feeling of use.

The oil phase part of the present invention may additionally include various components in addition to the above composition, and as an example, fatty acids, waxes, higher alcohols, and the like may be arbitrarily used.

The fatty acid is not particularly limited as long as it is generally used in the cosmetic field. For example, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, linoleic acid, γ-linolenic acid, isostearic acid, 12-hydroxystearic acid, undecylenic acid, etc. are mentioned. .

The wax may be used commonly used, for example, carnauba wax, candelilla wax, beeswax, lanolin, ozokerite ), ceresin wax, paraffin wax, microcrystalline wax, petrolatum, murumuru seed butter, mango butter, shea butter (shea butter), cocoa butter, almond butter, pistachio butter, avocado butter, aloe butter, soy butter, wheat butter wheat berm butter), cupuacu butter, jojoba butter, grape seed butter, hemp butter, and the like.

The higher alcohol is not particularly limited as long as it is generally used in the cosmetic field. The higher alcohol is an alcohol of C14 to C22, for example, cetyl alcohol, stearyl alcohol, behenyl acohol, myristyl alcohol, cetostearyl alcohol ( cetostearyl alcohol) and arachidyl alcohol.

The water-phase portion of the oil-in-water emulsion according to the present invention provides a feeling of moisture and a refreshing feeling of use, and contains polyhydric alcohol and water.

The polyhydric alcohol plays a role in stably maintaining the oil-in-water emulsion particles in the oil-in-water cosmetic composition of the present invention and exhibiting a moisturizing effect.

The polyhydric alcohol contains two or more hydroxyl groups (-OH group) in the molecule, and may be used without limitation, as long as it is generally used in the cosmetic field. For example, the polyhydric alcohol is erythritol, xylitol, sorbitol, glycol, glycerin, 1,2-propanediol, 1,3-propanediol, 1,3-butylene glycol, 1,2-pentanediol, 1,2 -It may be one or more selected from the group consisting of hexanediol, 1,2-octanediol, dipropylene glycol, polyethylene glycol, and derivatives thereof.

The polyhydric alcohol may be included in an amount of 1 to 50% by weight, preferably 3 to 30% by weight, based on the total 100% by weight of the oil-in-water cosmetic composition. When the content of the polyhydric alcohol is less than the above range, it is difficult to secure the above-described effect, and on the contrary, when the content of the polyhydric alcohol exceeds the above range, the flexible feeling of use of the emulsion formulation may be lowered.

The water may include distilled water or purified water, and may be used as a balance based on 100% by weight of the total of the oil-in-water cosmetic composition.

As described above, the oil-in-water cosmetic composition according to the present invention includes hydrogenated coco-glyceride in the oil phase, so that the water phase of the present invention includes an existing thickener, specifically, an acrylate thickener, a carbomer thickener and gum, It is substantially free of one or more thickeners selected from the group consisting of starch thickeners.

In the present invention, the aqueous phase may further include glycyrrhizinate in addition to the above-described composition.

Since the glycyrrhizinate is composed of a high molecular weight compound, which is a kind of saponin including a terpenoid structure, it is possible to obtain an excellent increasing effect by imparting an appropriate viscosity to the composition.

The glycyrrhizinate is a component derived from the extract of licorice root, and may include at least one selected from the group consisting of dipotassium glycyrrhizinate, dicalcium glycyrrhizinate, and ammonium glycyrrhizinate. Preferably, the glycyrrhizate may be dipotassium glycyrrhizate (potassium licorice).

The glycyrrhizinate may be included in an amount of 0.1 to 1% by weight, preferably 0.1 to 0.5% by weight, based on the total 100% by weight of the oil-in-water cosmetic composition. When the content of the glycyrrhizinate is less than the above range, the viscosity improvement effect of the composition cannot be obtained. Conversely, when the content of the glycyrrhizinate is less than the above range, it may cause a problem of lowering the feeling of use due to discoloration or discoloration of the composition.

The water phase of the present invention may further include various components in addition to the above composition, and examples thereof may include a neutralizing agent.

The neutralizing agent is for neutralizing the fatty acid in the oil phase and enhancing interfacial stability, and is not particularly limited as long as it is generally used in the cosmetic field. For example, the neutralizing agent is potassium hydroxide, sodium hydroxide, triethanolamine, methylglucamine, arginine, glycine, alanine, valine, leucine, isoleucine. , Serine, threonine, aspartic acid, glutamic acid, lysine, ornithine, cysteine, methionine, histidine, It may be one or more selected from the group consisting of phenylalanine, thyroxine, and tryptophane.

In addition, if necessary, a solvent or additive known in the art may be further included. The solvent is used to dissolve the oil-soluble component, and may be methanol, ethanol, propanol, or the like. In addition, the additives may be gelling agents, pigments, flavors, preservatives, water-soluble/oil-soluble physiologically active ingredients, pH adjusters, antioxidants, etc., and may be appropriately selected and blended by those skilled in the art within a range that does not impair the effects of the present invention. . In addition, it is preferable that the water-soluble component of the additive is included in the water phase and the oil-soluble component is included in the oil phase.

The oil-in-water cosmetic composition comprising the above-described composition has a viscosity at 30° C. of 1300 to 4300 cPs, preferably 1400 to 4200 cPs. At this time, the viscosity was measured using a viscometer at 30° C. under the conditions of spindle no. 4, 12 rpm, and 2 minutes. The oil-in-water cosmetic composition of the present invention may exhibit excellent formulation stability by having a viscosity within the above-described range.

In addition, the oil-in-water cosmetic composition according to the present invention has a pH in the range of 5 to 8, so that it is not only less irritating to the skin, but is also friendly, so that it can be formulated as a leave-on type cosmetic.

The oil-in-water cosmetic composition of the present invention includes hydrogenated coco-glyceride in the oil phase, unlike the existing oil-in-water cosmetic composition containing a thickener in the water phase, thereby lowering the fluidity of the oil-soluble component in the composition and rheological variance. The formulation stability is improved and the feeling of use is improved by minimizing. In addition, the oil-in-water cosmetic composition according to the present invention exhibits a thickening effect by further including glycyrrhizinate in the water phase, and this effect can be further improved by hydrogenated coco-glycerides contained in the oil phase.

The method for preparing the oil-in-water cosmetic composition according to the present invention is not particularly limited, and a method for preparing a cosmetic composition including an emulsion in a conventional oil-in-water type may be used.

Specifically, 1) preparing an aqueous phase comprising a polyhydric alcohol and water; 2) preparing an oil phase comprising a hydrogenated coco-glyceride, an oil and an emulsifier; 3) mixing by adding an oil phase to the water phase; And 4) cooling after degassing.

In step 1), the aqueous phase may further include glycyrrhizinate.

The mixing process of steps 1) to 4) is carried out in a stirrer capable of controlling temperature and stirring by a conventional method, and a method of stirring and applying heat as necessary is performed.

In addition, the stirring is performed using a homomixer in the stirrer, and the stirring speed and time may vary depending on the ingredients used, and for example, stirring at a speed of 5000 to 15000 rpm, preferably 5000 to 10000 rpm for 3 to 10 minutes Perform. Thereafter, the oil-in-water cosmetic composition of the present invention can be prepared by cooling to 25 to 35°C.

In addition, the oil-in-water cosmetic composition of the present invention can be implemented in various formulations, for example, solutions, suspensions, emulsions, pastes, gels, creams, lotions, ointments, powders, soaps, cleansing, patches, packs, foundations and It may be applied to one or more formulations selected from the group consisting of sprays, but is not limited thereto.

The oil-in-water cosmetic composition may be formulated including a carrier, medium or base acceptable in the field of cosmetics. In addition, fatty substances, organic solvents, solubilizers, thickening and gelling agents, emollients, antioxidants, suspending agents, stabilizers, foaming agents, fragrances, surfactants, water, ionic or nonionic emulsifiers, fillers, Adjuvants commonly used in the field of cosmetics, such as chelating agents, preservatives, vitamins, blockers, wetting agents, essential oils, dyes, pigments, hydrophilic actives, lipophilic actives, lipid vesicles or any other ingredients commonly used in cosmetics. It may contain. In addition, the above ingredients may be introduced in an amount generally used in the field of cosmetics.

In particular, the oil-in-water cosmetic composition according to the present invention has excellent aging stability and temperature stability, as well as excellent feeling of use, so it can be easily manufactured into cosmetics of various formulations. For example, it may have a formulation selected from the group consisting of solutions, suspensions, emulsions, pastes, gels, creams, lotions, ointments, powders, soaps, cleansing, patches, packs, foundations and sprays. In more detail, skin care products such as softening lotion, nutrient lotion, lotion, essence, cream, gel, pack, patch, mask, mist, make-up products such as makeup base, foundation, powder, mascara, lipstick, cleansing oil, cleansing It can be formulated as a makeup removal product such as a cream, cleansing lotion, cleansing water, and point makeup remover, and a cleaning product such as soap, cleansing foam, and body wash.

In the present invention, when the formulation is an ointment, paste, cream or gel, animal oil, vegetable oil, wax, paraffin, starch, tracant, cellulose derivative, polyethylene glycol, silicone, bentonite, silica, talc, or zinc oxide, etc. are used as carrier components. Can be used.

In the present invention, when the formulation is a powder or spray, lactose, talc, silica, aluminum hydroxide, calcium silicate, or polyamide powder may be used as a carrier component. In particular, in the case of a spray, additional chlorofluorohydrocarbon, propane / May contain propellants such as butane or dimethyl ether.

In the present invention, when the formulation is a solution or emulsion, a solvent, a solubilizing agent or an emulsifying agent is used as a carrier component, such as water, ethanol, isopropanol, ethyl carbonate, ethyl acetate, glycerin, carbomer, benzyl alcohol, benzyl benzoate. , Propylene glycol, 1,3-butyl glycol oil, glycerol aliphatic ester, caprylic capric triglyceride, hydrogenated polydecene, cetearyl glucoside, sorbidan stearate, polyethylene glycol, cetearyl alcohol, etc. .

In the present invention, when the formulation is a suspension, as a carrier component, a liquid diluent such as water, ethanol or propylene glycol, an ethoxylated isostearyl alcohol, a suspending agent such as polyoxyethylene sorbitol ester and polyoxyethylene sorbitan ester, and crystallites Sex cellulose, aluminum metahydroxide, bentonite, agar or tracanth, and the like can be used.

In the present invention, when the formulation is cleansing, it may be classified into a surfactant-containing cleansing formulation or a surfactant-free cleansing formulation, and after being applied to the skin, it may be wiped off, removed, or washed off with water. In the case of the surfactant-containing cleansing, as carrier components, aliphatic alcohol sulfate, aliphatic alcohol ether sulfate, sulfosuccinic acid monoester, isethionate, imidazolinium derivative, methyltaurate, sarcosinate, fatty acid amide ether sulfate, alkylami Dobetaine, fatty alcohols, fatty acid glycerides, fatty acid diethanolamides, vegetable oils, lanolin derivatives or ethoxylated glycerol fatty acid esters may be used. In addition, the surfactant-containing cleansing formulation is a cleansing foam, cleansing water, cleansing towel, and cleansing pack, and the cleansing formulation containing no surfactant is a cleansing cream, cleansing lotion, cleansing water and cleansing gel, but is not limited thereto.

In the present invention, when the formulation is soap or body wash, it may be wiped off, removed, or washed off with water after being applied to the skin. As a specific example, the soap may be liquid soap, powder soap, solid soap and oil soap.

Hereinafter, a preferred embodiment is presented to aid in the understanding of the present invention, but it is obvious to those skilled in the art that various changes and modifications are possible within the scope of the present invention and the scope of the technical idea, but the following examples are only illustrative of the present invention, It is natural that such modifications and modifications fall within the scope of the appended claims.

Example And Comparative example

An oil-in-water cosmetic composition was prepared according to the composition and content of Tables 1 and 2 below.

Specifically, each component of the aqueous phase was added to a stirrer and stirred at 60° C. to prepare an aqueous phase.

Then, each component of the oil phase was added to a separate stirrer and stirred at 75° C. to prepare an oil phase.

Then, the oil phase was added to the water phase, stirred for 5 minutes at 9000 rpm using a homomixer at 60° C., and then cooled to 35° C. to prepare an oil-in-water cosmetic composition.

Composition (% by weight) Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative Example 2 Paid part Hydrogenated Coco-Glyceride One 3 5 10 - 15 Cetyl 2-ethyl hexanoate 5 5 5 5 5 5 Glyceryl stearate: PEG-100 stearate (1:1 weight ratio) 3 3 3 3 3 3 Dimethicone 3 3 3 3 3 3 Award Purified water Balance Balance Balance Balance Balance Balance glycerin 20 20 20 20 20 20 Dipotassium glycyrrhizate - - - - - - antiseptic 0.05 0.05 0.05 0.05 0.005 0.05

Composition (% by weight) Example 5 Example 6 Example 7 Example 8 Example 9 Example 10 Example 11 Example 12 Example 13 Paid part Hydrogenated Coco-Glyceride One One One 5 5 5 10 10 10 Cetyl 2-ethyl hexanoate 5 5 5 5 5 5 5 5 5 Glyceryl stearate: PEG-100 stearate (1:1 weight ratio) 3 3 3 3 3 3 3 3 3 Dimethicone 3 3 3 3 3 3 3 3 3 Award Purified water Balance Balance Balance Balance Balance Balance Balance Balance Balance glycerin 20 20 20 20 20 20 20 20 20 Dipotassium glycyrrhizate 0.1 0.5 One 0.1 0.5 One 0.1 0.5 One antiseptic 0.05 0.05 0.05 0.05 0.005 0.05 0.05 0.005 0.05

Experimental example 1. Formulation stability evaluation

The formulation changes were observed with the naked eye while leaving the oil-in-water cosmetic composition prepared in Examples and Comparative Examples at 45° C., room temperature (25° C.) and cycling conditions. At this time, the cycle condition was set as a condition for giving a temperature change of -10°C to 40°C every 12 hours to give a temperature change of 2 cycles per day. The results obtained at this time are shown in Table 3 and FIG. 1 below.

Storage conditions 45 ℃ Room temperature (25 ℃) Cycle condition Example 1 1 week separation 2 weeks separation 1 week separation Example 2 2 weeks separation 2 weeks good 1 week separation Example 3 2 weeks separation 2 weeks good 2 weeks separation Example 4 2 weeks separation 2 weeks good 2 weeks separation Example 5 1 week separation 2 weeks separation 1 week separation Example 6 2 weeks separation 2 weeks good 1 week separation Example 7 2 weeks separation 2 weeks good 1 week separation Example 8 2 weeks slightly separated 2 weeks good 2 weeks separation Example 9 2 weeks good 2 weeks good 2 weeks slightly separated Example 10 3 weeks good 3 weeks good 3-week separation Example 11 2 weeks slightly separated 2 weeks good 2 weeks separation Example 12 2 weeks good 2 weeks good 3 weeks slightly separated Example 13 3 weeks good 3 weeks good 3-week separation Comparative Example 1 1 week separation 1 week separation 1 week separation Comparative Example 2 2 weeks separation 2 weeks good Slightly separated for 1 week

In the case of the oil-in-water cosmetic composition according to the present invention through Table 3 and FIG. 1, it was confirmed that the overall formulation stability was excellent.

Specifically, in the case of the oil-in-water cosmetic composition of Examples 1 to 4 containing only hydrogenated coco-glyceride, the overall formulation stability is improved compared to Comparative Example 1 not containing this and Comparative Example 2 containing an excess thereof, and hydrogenated coco- When the glyceride content is contained within 10% by weight, it can be seen that stability over time and temperature stability are improved.

In addition, in the case of Examples 5 to 13 including hydrogenated coco-glyceride and glycyrrhizinate together, it can be seen that the formulation stability at room temperature is particularly excellent, and the aging and temperature stability are also improved.

In addition, FIG. 1 shows the appearance of Example 10 and Comparative Example 1 after 3 weeks at 45°C. In the case of the composition according to Example 10, layer separation did not occur at all, whereas the composition according to Comparative Example 1 In the case of, it can be confirmed that the formulation is unstable due to layer separation at both the top and bottom, as indicated by red parentheses.

Experimental example 2. Viscosity evaluation

The viscosity at 30° C. of the oil-in-water cosmetic composition prepared in Examples and Comparative Examples was measured. Specifically, it was measured under the conditions of spindle no. 4, 12 rpm, and 2 minutes using a viscometer (DV-2 viscometer, manufactured by Brookfield), and the results obtained at this time are shown in Table 4.

Viscosity (cPs) Example 1 1300 Example 2 1800 Example 3 2600 Example 4 3000 Example 5 1400 Example 6 1700 Example 7 2000 Example 8 2900 Example 9 3500 Example 10 4200 Example 11 3100 Example 12 3700 Example 13 4300 Comparative Example 1 1200 Comparative Example 2 3600

Referring to Table 4, it was confirmed that the viscosity of the oil-in-water cosmetic composition according to the present invention was higher than that of Comparative Example 1.

Specifically, in the case of Examples 1 to 4, it can be seen that the viscosity is increased compared to Comparative Example 1 that does not contain hydrogenated coco-glyceride, and the viscosity increases as the content of only hydrogenated coco-glyceride increases, As in Comparative Example 2, when it is included in an excessive amount, it can be seen that the hardness increase power compared to the content is low and the feeling of use of the formulation is not good. In addition, it can be seen from Examples 5 to 13 that the thickening effect is remarkably improved when the hydrogenated coco-glyceride and the glycyrrhizinate are simultaneously included.

Formulation example One.

An emulsion containing the oil-in-water cosmetic composition of the present invention was prepared by a conventional method according to the composition and content of Table 5 below.

ingredient Content (% by weight) Hydrogenated Coco-Glyceride 5 Cetyl 2-ethyl hexanoate 5 Hydrogenated Polydecene 3 Glyceryl stearate: PEG-100 stearate (1:1 weight ratio) 3 Dimethicone 3 Purified water 55.85 glycerin 20 Butylene Glycol 5 Dipotassium glycyrrhizate 0.1 antiseptic 0.05

Claims (9)

An aqueous phase containing polyhydric alcohol and water, and
An oil-in-water cosmetic composition comprising an oily part containing an oil and an emulsifier,
The oil-in-water cosmetic composition comprising hydrogenated coco-glyceride. The method of claim 1,
The hydrogenated coco-glyceride comprises 1 to 10% by weight based on the total 100% by weight of the oil-in-water cosmetic composition. The method of claim 1,
The water-in-water type cosmetic composition does not substantially contain one or more thickeners selected from the group consisting of acrylate-based thickeners, carbomer-based thickeners and gums, and starch-based thickeners. The method of claim 1,
The water-in-water cosmetic composition further comprises a glycyrrhizinate. The method of claim 4,
The glycyrrhizinate includes at least one selected from the group consisting of dipotassium glycyrrhizinate, dicalcium glycyrrhizinate, and ammonium glycyrrhizinate. The method of claim 4,
The glycyrrhizinate is contained in an amount of 0.1 to 1% by weight based on the total 100% by weight of the oil-in-water cosmetic composition. The method of claim 1,
The oil-in-water cosmetic composition has a viscosity of 1300 to 4300 cPs at 30° C., an oil-in-water cosmetic composition. The method of claim 1,
The oil-in-water cosmetic composition has a pH of 5 to 8, an oil-in-water cosmetic composition. The method of claim 1,
The oil-in-water cosmetic composition is one or more formulations selected from the group consisting of solutions, suspensions, emulsions, pastes, gels, creams, lotions, ointments, powders, soaps, cleansing, patches, packs, foundations, and sprays. Composition.

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