KR102557833B1 - Cosmetic composition including capsules for base makeup and preparing method thereof - Google Patents

Abstract

The present invention, an aqueous phase comprising purified water, an aqueous moisturizer, an additive and an aqueous thickening agent; And an oily phase part uniformly dispersed in the form of a capsule in the water phase part, wherein the oil phase part relates to a cosmetic composition containing capsules having a base makeup function, including moisturizing oil, a pigment and a capsule forming agent, and a method for manufacturing the same. This can minimize skin irritation.

Description

Cosmetic composition including capsules for base makeup and preparing method thereof

The present invention relates to a cosmetic composition containing capsules having a base makeup function and a method for manufacturing the same, and more particularly, to a base makeup cosmetic composition in which a pigment component for producing smooth and bright skin is contained in a fine capsule and stably dispersed in an aqueous phase component, so that the moisturizing feeling is excellent and can be applied uniformly and smoothly without applying great force, and a method for manufacturing the same.

The skin is the largest organ of the human body and is an important organ that plays various roles such as protective function, barrier function, temperature control function, excretion function, and respiratory function. However, due to various external environmental factors such as strong ultraviolet rays, fine dust, excessive use of air conditioners / heaters, and internal factors such as aging, stress, and nutritional deficiency, skin cells are damaged and cell proliferation is not performed properly. In addition, cosmetic problems such as wrinkles, reduced elasticity, and keratinization occur.

The skin located at the outermost part of the human body is considered to be more beautiful and attractive as it is brighter and smoother, and various efforts are being made to maintain such beautiful skin. In the past, skin care or decoration has been accepted as the exclusive property of women, but recently, with the development of media and increased interest in appearance, various efforts are being made to decorate using makeup cosmetics to maintain beautiful skin and look more beautiful regardless of age or gender.

Makeup cosmetics include pigment components to have a function of changing skin color or correcting to have a certain skin tone, and can be separately applied to various parts such as skin, eyes, and lips depending on the formulation.

In particular, various base makeup cosmetics such as primer, tone-up cream, BB cream, makeup base, and foundation are essential in the first stage of makeup in order to basically correct skin tone and make it brighter or darker. These base makeup cosmetics are manufactured to enable a healthy-looking skin expression while being uniformly adhered to the skin, and to have a smooth finish.

Among base makeup cosmetics, oil-in-water cosmetics are characterized by excellent moisture and a fresh feeling of use.

These water-in-water cosmetics can be prepared in a variety of ways. In the case of forming an emulsion composition of a single dosage form using a surfactant as an emulsifier, skin irritation may be caused by the emulsifier, and phase separation may occur when the amount of the emulsifier is insufficient.

As another method, there is a method in which oil components are prepared in advance in the form of fine capsules using starch or cellulose, etc., and then dispersed in the aqueous phase components. In this case, when using cosmetics, a predetermined force must be applied to break the capsules.

Therefore, it is necessary to develop a new formulation of water-in-water cosmetics that is easy to use and can minimize skin irritation without using an emulsifier.

Registered Patent No. 10-2193575 (registered on December 24, 2020)

In the present invention, the pigment component is contained in a fine capsule and is stably dispersed in the aqueous phase component, thereby providing a cosmetic composition containing capsules having excellent moisture and a base makeup function that can be applied uniformly and smoothly without applying great force, and a manufacturing method thereof.

One embodiment of the present invention for achieving the above object, the water phase portion including purified water, an aqueous moisturizer, an additive and an aqueous thickening agent; and an oil phase part uniformly dispersed in the form of a capsule in the water phase part, wherein the oil phase part relates to a cosmetic composition containing a capsule having a base makeup function, including a moisturizing oil, a pigment, and a capsule forming agent.

The diameter of the capsule may range from 0.1 to 2.0 mm.

The capsule forming agent may include hydrogenated vegetable oil; behenyl alcohol; fatty acids having 16 to 19 carbon atoms; and a fatty alcohol including at least one of cetyl alcohol, stearyl alcohol, and cetearyl alcohol.

The oil phase part may include 10 to 500 parts by weight of a pigment and 10 to 500 parts by weight of a capsule forming agent based on 100 parts by weight of the moisturizing oil.

The viscosity of the water phase part and the oil phase part may be formed differently.

The viscosity of the water phase part may be formed at 8,000 to 18,000 cP, and the viscosity of the oil phase part may be formed at 30,000 to 40,000 cP.

Another embodiment of the present invention relates to a method for preparing a cosmetic composition containing a capsule having a base makeup function.

More specifically, an oil phase preparation step of preparing an oil phase composition by mixing moisturizing oil, a pigment and a capsule forming agent and stirring at a rotational speed of 200 to 2,000 rpm; An aqueous phase preparation step of preparing an aqueous phase composition by mixing purified water, an aqueous moisturizer, an additive and an aqueous thickener and stirring at a rotational speed of 200 to 1,500 rpm; and a dispersing step of uniformly dispersing the oil phase composition in the form of capsules having a diameter in the range of 0.1 to 2.0 mm in the aqueous phase composition by mixing the aqueous phase composition and the oil phase composition and stirring at a rotational speed of 1,000 to 9,000 rpm.

The capsule forming agent may include hydrogenated vegetable oil; behenyl alcohol; fatty acids having 16 to 19 carbon atoms; and a fatty alcohol including at least one of cetyl alcohol, stearyl alcohol, and cetearyl alcohol.

In the cosmetic composition containing the capsule having a base makeup function of the present invention, the pigment component is contained in a fine capsule, and the capsule can be stably dispersed in the aqueous phase component.

In addition, the capsule containing the pigment is dispersed in the aqueous phase component, so the moisture is excellent, and it can be applied uniformly and smoothly without applying great force.

In addition, since it does not contain a separate emulsifier, skin irritation can be minimized.

1 is a photograph of a cosmetic composition sample containing a capsule having a base makeup function according to an embodiment of the present invention.

Prior to a detailed description through preferred embodiments of the present invention below, the terms or words used in the present specification and claims should not be construed as being limited to conventional or dictionary meanings, and correspond to the technical spirit of the present invention. It should be noted that it should be interpreted as a concept.

Throughout this specification, when a certain component is said to "include", it means that it may further include other components without excluding other components unless otherwise stated.

Throughout this specification, "%" used to indicate the concentration of a specific substance means (weight/weight)% for solid/solid, (weight/volume)% for solid/liquid, and (volume/volume)% for liquid/liquid, unless otherwise specified.

In each step, the identification code is used for convenience of explanation, and the identification code does not describe the order of each step, and each step may be performed in a different order from the specified order unless a specific order is clearly described in context. That is, each step may be performed in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

The term "capsule" used in the present invention may include not only a capsule in the usual sense in which the contents exist inside the shell, but also a particle in which the contents exist in a drop or drop-like shape without a material functioning as a separate shell.

Hereinafter, look at an embodiment of the present invention. However, the scope of the present invention is not limited to the following preferred embodiments, and those skilled in the art can implement various modified forms of the contents described herein within the scope of the present invention.

The present invention relates to a cosmetic composition containing a capsule having a base makeup function and a manufacturing method thereof.

Specifically, it is possible to provide a high moisture feeling by uniformly dispersing the oil phase part containing the pigment component in the water phase part in the form of fine capsules, and has a base makeup function that can be applied uniformly and smoothly without applying great force. It relates to a cosmetic composition containing capsules and a method for manufacturing the same.

One embodiment of the present invention relates to a cosmetic composition containing a capsule having a base makeup function, wherein the cosmetic composition includes an aqueous phase part and an oil phase part uniformly dispersed in the form of a capsule in the aqueous phase part.

The aqueous phase part contains purified water, an aqueous moisturizer, an additive and an aqueous thickening agent, and the oil phase part contains a moisturizing oil, a pigment and a capsule forming agent.

At this time, the oil phase part and the oil phase part do not contain a separate emulsifier, so the oil phase part and the water phase part are not formed as an emulsified emulsion composition, and a capsule forming agent is included in the oil phase part to form a fine capsule form, and these capsules are uniformly dispersed in the water phase part. In particular, the oil phase part is formed in the form of a capsule in which a separate shell is not included, and the contents themselves exist in the form of particles, and can be uniformly dispersed in the water phase part.

In this way, it is possible to prevent skin irritation due to the use of cosmetics by not including a separate emulsifier.

In addition, by having a formulation in which fine capsules are uniformly dispersed in the water phase as described above, when applied to the skin, moisture is primarily supplied to the skin by the water phase, and the shape of the capsule having a makeup function is destroyed and applied thereon to make makeup. Unlike general makeup cosmetics, it is possible to provide a soft feeling without stiffness, to prevent dryness due to use of cosmetics, and to finish with a refreshing feeling after application, so there are advantages of excellent spreadability and application feeling.

In the present invention, a capsule forming agent is used to form such a capsule. In particular, since gelling agents such as cellulose or starch are not used to form the shell of the capsule, there is no foreign body feeling due to the use of these gelling agents, and excessive force is not required to break the gel capsule during application.

The diameter of the capsule may range from 0.1 to 2.0 mm. Here, the diameter means the longest of the lengths from one end to the other end of the capsule.

In particular, when the diameter of the capsule exceeds 0.1 mm, the capsule is not applied in a uniform amount to the entire surface of the skin when the cosmetic composition is used, so that the function of concealing, changing, and supplementing the skin color is expressed unevenly. Since it is difficult to implement a constant color tone, it is preferable that the maximum diameter is less than 0.1 mm.

The oil phase part may be included in 3 to 45 parts by weight based on 100 parts by weight of the water phase part. In particular, when the content of the oil phase part exceeds 45 parts by weight, formulation stability is reduced, so it is preferable to mix and prepare in the above-mentioned weight ratio.

The aqueous phase part includes purified water, an aqueous moisturizer, an additive and an aqueous thickening agent. Specifically, it may include 8 to 20% by weight of an aqueous moisturizer, 1 to 5% by weight of an additive, 0.5 to 6 parts by weight of an aqueous thickener, and the remaining amount of purified water.

The viscosity of the water phase part may have a range of 8,000 to 18,000 cP, and the water phase part alone has flowability similar to skin, toner, essence, serum and lotion.

When the viscosity of the water phase part is formed in this way, fine capsules can be formed in the process of mixing the water phase part and the oil phase part during the manufacturing process, and the size of the individual capsule particles is formed to be constant, so that the weight ratio of the water phase part and the oil phase part in the cosmetic composition discharged from the container is constant, so makeup quality can be secured. In addition, since the capsules are uniformly dispersed within the entire water phase, even if left unattended for a long period of time, the capsules do not settle, so there is an advantage that the capsules can be used conveniently without a separate operation of shaking the container.

The aqueous moisturizer is a component added for primary skin moisturizing when using a cosmetic composition, and is added in an amount of 8 to 20% by weight in the aqueous phase. If the content of the aqueous moisturizer is less than 8% by weight, the moisturizing effect by the aqueous moisturizer is insignificant, and if it exceeds 20% by weight, the stability of the formulation is poor and may cause a foreign body feeling, stickiness or irritation during use.

As such an aqueous moisturizer, various known substances exhibiting a moisturizing effect may be used. Common humectants such as, for example, glycerin, propanediol, dipropylene glycol, polyols or polyglycerin-3 may be used. Alternatively, along with these general moisturizers, functional moisturizers such as trehalose, betaine, adenosine, niacinamide, panthenol, allantoin, hyaluronic acid, squalene, or ceramide NP may be used.

The additive is a component added to impart an additional function to the cosmetic composition, and may be included in an amount of 1 to 5% by weight in the water phase part. If the content of the additive is less than 1% by weight, the effect of improving function by the additive is insignificant, and if it exceeds 5% by weight, skin irritation may be induced due to excessive additive content, and the formulation stability of the composition is lowered. Since problems such as deterioration of original functions such as make-up or moisturizing occur, it is preferable to add them within the above-mentioned weight range.

As such an additive, at least one or more of a sequestering agent, preservative, pH adjusting agent and colorant may be added, and preferably a sequestering agent, preservative and pH adjusting agent may be used.

The sequestering agent is added to improve the stability and usability of the water phase part by blocking metal ions contained in the water phase part. As such a metal ion sequestering agent, for example, at least one of anhydrous citric acid, anhydrous tetrasodium pyrophosphate, anhydrous trisodium phosphate, sodium metaphosphate, sodium citrate, sodium polyphosphate, EDTA-4Na and EDTA-2Na may be used, but is not limited thereto.

The preservative is a component added to inhibit or prevent the growth of microorganisms in the cosmetic composition, and various known preservatives may be used. At this time, it is preferable not to use parabens or phenoxyethanol that can cause an allergic skin reaction as a preservative, and it is highly safe for the skin and eco-friendly 1,2-hexanediol, 1,3-butylene glycol, caprylyl glycol, glyceryl caprylate, p-anisic acid, pen At least one selected from the group consisting of pentylene glycol and ethylhexylglycerin may be used, but is not limited thereto.

A pH adjusting agent is added to stabilize the properties of the aqueous phase by adjusting the pH of the aqueous phase, and accordingly, a formulation in which fine-sized capsules are dispersed in the aqueous phase can be stably maintained. As such a pH adjusting agent, for example, at least one or more selected from the group consisting of tromethamine, arginine, potassium hydroxide and sodium hydroxide may be used, but is not limited thereto.

The aqueous thickening agent is added to provide smooth application by adjusting the viscosity of the water phase part, to improve the moisturizing effect by increasing the skin absorption power of the water phase part, and to stably maintain the dispersed state of the capsule.

As such an aqueous thickener, for example, at least one selected from the group consisting of agar, ammonium acryloyl dimethyltaurate/vinyl pyrrolidone (VP) copolymer and hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer may be used.

The aqueous thickener may be included in an amount of 0.5 to 6% by weight in the aqueous phase part, and when the content of the aqueous thickener is less than 0.5% by weight, the viscosity of the aqueous phase part is excessively low, causing a problem in that the capsules are not uniformly dispersed as a whole and settle. On the other hand, when the content of the aqueous thickener exceeds 6% by weight, the viscosity of the aqueous phase portion is excessively high, resulting in a problem in that the size of the microcapsules is not uniformly formed, so that even if a certain amount of the cosmetic composition is discharged from the container, the makeup performance according to the number of times of discharge is not constant. Since there is a problem, it is preferable that the water-phase thickener is included in the above-mentioned weight range to ensure makeup quality during use.

When the aqueous thickener is included in the aforementioned weight range, the above-mentioned problem can be prevented because the viscosity of the aqueous phase is formed in the range of 8,000 to 18,000 cP.

The oily part contains moisturizing oil, pigment and capsule forming agent. The oily phase is present in a uniformly dispersed capsule form with a diameter in the range of 0.1 to 2.0 mm in the water phase.

The oil phase part includes 10 to 500 parts by weight of a pigment and 10 to 500 parts by weight of a capsule forming agent based on 100 parts by weight of moisturizing oil.

The viscosity of the oil phase part may be 30,000 cP or more, and since the water phase part and the oil phase part are more difficult to mix with each other due to the polarity difference as well as the viscosity difference, as the high viscosity is formed in this way, the capsule formed of the oil phase part is not mixed with the water phase part. It can exist in a dispersed state in the water phase part.

In addition, as described above, the cohesive force of individual capsules is strong due to the high viscosity, so that the individual particle phase can be stably maintained without being easily combined or aggregated with neighboring capsules.

While further enhancing these effects, the viscosity of the oil phase part may be 30,000 to 40,000 cP in order to provide an effect of preventing stickiness or foreign body feeling caused by the oil phase part.

The moisturizing oil imparts a polarity different from that of the aqueous phase to the oily phase so that the capsules formed in the oily phase are not mixed or emulsified with the aqueous phase and the capsules exist in the form of individual particles in the aqueous phase. In addition, the moisturizing oil imparts a moisturizing feeling when the cosmetic composition is applied to the skin, and can be applied smoothly.

As the moisturizing oil, various known oils capable of imparting moisture to the skin may be used, and as mentioned above, non-polar oil may be used to separate the aqueous phase part. Preferably, a non-polar moisturizing oil may be used to impart a silky and smooth finish without being sticky.

For example, at least one or more of natural oils, ester-based oils, hydrocarbon-based oils, and silicone oils may be used as the moisturizing oil.

Natural oils may be oils obtained from plants that exist in nature. Examples of such natural oils include olive oil, coconut oil, sunflower seed oil, avocado oil, orange oil, macadamia seed oil, lemon oil, pine nut oil, jojoba seed oil, green tea seed oil, rosehip fruit oil, damask rose oil, Brazil nut seed oil, drumstick seed oil, grapefruit seed oil, soybean oil, and vanilla fruit oil, but are not limited thereto.

Ester oils are ester compounds of fatty acids and fatty alcohols. Examples of ester oils include dipentaerythrityl hexa C5-9 acid esters, C12-15 alkyl octanoate, myristyl lactate, cetyl ethylhexanoate, cetyl octanoate, isopropyl myristate, octyldodecyl myristate, hexyl laurate, di(C12-13) alkyl malate, myristyl lactate, octyldodecyl stearoyl stearate At least one selected from the group consisting of yldodecyl stearoylstearate, diisostearyl malate, pentaerythrityl tetraethylhexanoate, and diglyceryl triisostearate may be used, but is not limited thereto.

petroleum-based oils such as liquid paraffin, petrolatum, and isoparaffins as hydrocarbon-based oil; synthetic oils such as hydrogenated polydecene, synthetic squalane, and polybutene; Plant-based oils such as vegetable squalane and hydrogenated squalane may be used, but are not limited thereto.

As the silicone oil, for example, at least one of cyclopentasiloxane, cyclohexasiloxane, dimethicone, methyltrimethicone, amodimethicone, phenyltrimethicone, dimethicone/trimethylsiloxy silicate, diphenyldimethicone, triphenylmethicone, a homogeneous dispersion of dimethicone and dimethiconol, and a copolymer of cyclopentasiloxane and dimethicone/vinyldimethicone may be used, It is not limited thereto.

The pigment is a component added to the cosmetic composition to impart skin hiding power and color, and when the cosmetic composition is applied to the skin according to the addition of the pigment, effects such as producing a different skin color or changing the original skin tone can be obtained.

With the addition of pigments in this way, the cosmetic composition of the present invention can function as a base cosmetic such as primer, tone-up cream, BB cream, makeup base, foundation, and the like.

The pigment may be included in an amount of 10 to 500 parts by weight based on 100 parts by weight of the moisturizing oil, and the skin covering power may vary depending on the content of the pigment. However, if the content of the pigment is less than 10 parts by weight, it is difficult to use as a base cosmetic because the skin hiding power is insignificant, and if it is included in more than 500 parts by weight, there is a problem that the pigment is not sufficiently mixed into the oil phase part during the manufacturing process.

The pigment includes at least one base pigment selected from the group consisting of titanium dioxide, aluminum oxide, zinc oxide, talc, kaolin, mica, silica, barium sulfate, boron nitride, calcium carbonate and hydroxyapatite, zirconium oxide, cerium oxide, zinc oxide, iron oxide (black, yellow or red), chromium oxide, manganese violet, ultramarine blue, chromium hydrate, chromium oxide green, ferric blue, and metal powder. At least one or more colored pigments selected from the group may be used, but are not limited thereto.

The capsule forming agent is a component added to form microcapsules having a diameter in the range of 0.1 to 2.0 mm in the oil phase portion within the aqueous phase portion. As the capsule forming agent is added, the cohesive strength of the capsules is improved, so that the capsules themselves can be formed into fine particles or fine capsules without using a separate encapsulant, and these formulations can be stably maintained for a long period of time.

The capsule forming agent may be included in an amount of 10 to 500 parts by weight based on 100 parts by weight of the moisturizing oil, and when it is included in an amount of less than 10 parts by weight, the effect of improving cohesion is insignificant, so that microcapsules are not formed.

On the other hand, when the capsule forming agent is included in an amount of more than 500 parts by weight, it is difficult to form fine capsules of a certain size, and when using the cosmetic composition, there is a problem in that an unpleasant finishing feeling such as a foreign body feeling or stickiness is formed.

Hydrogenated vegetable oils; behenyl alcohol; fatty acids having 16 to 19 carbon atoms; and mixtures of fatty alcohols may be used.

The fatty acid having 16 to 19 carbon atoms may include at least one selected from the group consisting of stearic acid, isostearic acid, palmitic acid, and oleic acid, and the fatty alcohol may include at least one of cetyl alcohol, stearyl alcohol, and cetearyl alcohol.

When a capsule forming agent containing all of the above four types of components is used, fine-sized capsules as described above can be formed, and a formulation stably maintained in the water phase portion can be formed. Therefore, it is preferable that all four types of components are included.

Preferably, a mixture of 80 to 130 parts by weight of behenyl alcohol, 18 to 30 parts by weight of fatty acids having 16 to 19 carbon atoms, and 20 to 35 parts by weight of fatty alcohols based on 100 parts by weight of hydrogenated vegetable oil may be used as the capsule forming agent.

The oil phase part may further include an oil-based thickener for adjusting the viscosity of the oil phase part, if necessary. The content of the oil-based thickener may be 10 to 55 parts by weight based on 100 parts by weight of the moisturizing oil. If the content of the oil-based thickener is less than 10 parts by weight, the stability of maintaining the shape of the capsule is lowered, and if it exceeds 55 parts by weight, the viscosity of the capsule becomes excessively high, causing a problem of stickiness or foreign body sensation during use, so it is preferably included within the above-described weight range.

Such oil-based thickeners, for example, from the group consisting of dextrin myristate, dextrin palmitate, dextrin stearate, stearalkonium hectorite, disteardimonium hectorite, and quaternium-18 hectorite At least any one or more selected may be used.

Another embodiment of the present invention relates to a method for manufacturing a cosmetic composition containing capsules having a base makeup function, and since the cosmetic composition containing capsules having a base makeup function is the same as the cosmetic composition containing capsules having a base makeup function according to one embodiment of the present invention described above, overlapping descriptions will be omitted.

First, the manufacturing method according to the present embodiment includes a step of preparing an oil phase part by mixing moisturizing oil, a pigment and a capsule forming agent and stirring at a rotational speed of 200 to 2,000 rpm to prepare an oil phase part composition; An aqueous phase preparation step of preparing an aqueous phase composition by mixing purified water, an aqueous moisturizer, an additive and an aqueous thickener and stirring at a rotational speed of 200 to 1,500 rpm; and a dispersing step of uniformly dispersing the oil phase composition in the form of capsules having a diameter in the range of 0.1 to 2.0 mm in the aqueous phase composition by mixing the aqueous phase composition and the oil phase composition and stirring at a rotational speed of 1,000 to 9,000 rpm.

The oil phase preparation step is a step of preparing an oil phase composition by mixing moisturizing oil, pigment and capsule forming agent and stirring at a rotational speed of 200 to 2,000 rpm.

At this time, the stirring temperature is not particularly limited, and when the stirring speed is out of the above range, it is difficult to sufficiently stir or excessive bubbles are generated, so it is preferable that the stirring is performed to satisfy the above-described stirring conditions.

In this step, more preferably, at least a portion of the moisturizing oil and the pigment are firstly mixed to form a uniformly dispersed pigment composition, and then this pigment composition, the remaining moisturizing oil and the capsule forming agent may be secondarily mixed. In this case, the pigment particles can be more uniformly dispersed in the oil phase portion.

At this stage, an oil-based thickener may be mixed together to adjust the viscosity of the oil phase.

The preparing of the aqueous phase part is a step of preparing an aqueous phase composition by mixing purified water, an aqueous moisturizer, an additive and an aqueous thickening agent and stirring at a rotational speed of 200 to 1,500 rpm.

In this step, the stirring temperature is not particularly limited, and when the speed is out of the above range, it is difficult to sufficiently stir or excessive bubbles are generated, so it is preferable that the stirring is performed to satisfy the above-described stirring conditions.

One of the oil phase part preparation step and the water phase part preparation step may be performed first, or both steps may be performed at the same time.

In the dispersing step, the aqueous phase composition and the oil phase composition are mixed and stirred at a rotational speed of 1,000 to 9,000 rpm to form a capsule having a diameter of 0.1 to 2.0 mm in the aqueous phase composition and uniformly dispersing the oil phase composition.

At this time, when the stirring speed is less than 1,000 rpm, the stirring force is insufficient, so that the oil phase portion is not formed in the form of fine oil particles, and when it exceeds 9,000 rpm, it is difficult to form the desired formulation due to excessive bubble generation. It is preferable that stirring is performed.

The cosmetic composition prepared in this way may be contained in a container as it is and manufactured into a product, or, if necessary, subjected to a vacuum degassing process, then contained in a container and manufactured into a product.

Hereinafter, specific actions and effects of the present invention will be described through an embodiment of the present invention. However, this is presented as a preferred example of the present invention, and the scope of the present invention is not limited according to the examples.

[ manufacturing example ]

First, the components constituting the aqueous phase described in Table 1 were mixed and stirred at a rotation speed of 820 rpm for 7 minutes to prepare an aqueous phase having a viscosity of 8,300 cP, and the components constituting the oil phase described in Table 1 were mixed and stirred at a rotation speed of 540 rpm for 10 minutes to prepare an oil phase having a viscosity of 32,000 cP.

When preparing the oil phase, a pigment composition was prepared by first mixing a copolymer of cyclopentasiloxane, which is a moisturizing oil, and dimethicone/vinyldimethicone, and then mixing it with the remaining moisturizing oil and a capsule forming agent, stirring at the above-described time and rotational speed.

Next, 36 parts by weight of the oil phase part was mixed with 100 parts by weight of the water phase part, and then stirred for 20 minutes at a rotational speed of 2,100 rpm to form a fine capsule form as shown in FIG.

ingredient name Content (% by weight) Prime Minister Purified water Purified water 81.46 Mercury
moisturizer glycerin 7.55 propanediol 3.07 hyaluronic acid 1.40 Niacinamide 2.25 additive EDTA-2Na 0.03 1,3-butylene glycol 2.56 tromethamine 0.25 Mercury
thickener Ammonium Acryloyl
Dimethyltaurate/VP Copolymer 1.43 Sum 100.00 pay-per-view Moisturizing
oil coconut oil 8.40 olive oil 6.38 dimethicone 16.65 Copolymers of cyclopentasiloxane and dimethicone/vinyldimethico 7.64 pigment talc 18.95 titanium dioxide 16.81 aluminum oxide 0.56 Colored Pigments (Chromium Oxide Green, Ultramarine) 0.39 capsule
former Hydrogenated Vegetable Oil 9.69 behenyl alcohol 9.69 stearic acid 2.42 cetearyl alcohol 2.42 Sum 100.00

[ Experimental example One]

A cosmetic composition was prepared using the same method as in Preparation Example, but the content of the capsule forming agent added to the oil phase during preparation of the oil phase was changed as shown in Table 2 below, and the formulation of each sample was visually observed and evaluated and listed in Table 2. Sensory evaluation was performed on 20 subjects aged 20 to 40 years, and the results are shown in Table 3.

In preparing the sample, a mixture of 100 parts by weight of hydrogenated vegetable oil, 100 parts by weight of behenyl alcohol, and 25 parts by weight of each of stearic acid and cetearyl alcohol was used as a capsule forming agent, and the content of the capsule forming agent in Table 2 refers to the weight ratio based on 100 parts by weight of the moisturizing oil content in the oil phase.

First, the observation of the formulation of the sample was evaluated by visually observing whether or not microcapsules were formed immediately after preparation, whether the formulation was maintained after being left at room temperature for one month, and whether the formulation was maintained after being left at 37 ± 3 ° C for 2 weeks. When observed with the naked eye, good progress was indicated as "○", and poor results were indicated as "X" in Table 2.

capsule former
Content (parts by weight) Formulation Observations fine oil
capsule formation room temperature formulation
Retention (24±2℃) high temperature formulation
Retention (37±3℃) sample 1 8.0 X X X sample 2 15.2 ○ ○ ○ sample 3 62.0 ○ ○ ○ sample 4 120.8 ○ ○ ○ sample 5 355.9 ○ ○ ○ sample 6 486.2 ○ ○ ○ sample 7 512.7 ○ ○ X

In the sensory evaluation, after washing each subject and applying skin and lotion, the same amount of different samples is applied to the left and right cheeks, and whether or not it is dry after application (moisturizing power), whether it is applied moistly and smoothly (application power), whether the pigment is not pushed, whether or not a uniform tone makeup is made on the skin (application uniformity), and whether or not a soft, smooth and matte finish is formed (finishing) using a 5-point scale method. After that, the average value for each item was listed in Table 3. Evaluation using the 5-point scale method was performed with 5 points for good results and 1 point for poor results.

Encapsulant content
(parts by weight) Sensory evaluation result (points) moisturizing power application power uniformity of application finish sample 1 8.0 3.9 3.2 3.6 3.8 sample 2 15.2 4.4 4.4 4.5 4.6 sample 3 62.0 4.5 4.5 4.4 4.7 sample 4 120.8 4.5 4.5 4.5 4.7 sample 5 355.9 4.6 4.6 4.5 4.6 sample 6 486.2 4.4 4.4 4.7 4.4 sample 7 512.7 3.6 2.1 2.7 3.5

Referring to the results of Tables 2 and 3, in the case of Samples 2 to 6, it was found that microcapsules were well formed, the microcapsules were uniformly dispersed in the water phase, and these formulations were stably maintained for a long time at room temperature and high temperature. In addition, as a result of the sensory evaluation, moisturizing power, application power, application uniformity, and finish were all evaluated to be excellent. On the other hand, in the case of Sample 1, microcapsules were not formed well during manufacture, only some microcapsules were formed, and the water phase and oil phase layers were separated. Accordingly, it was found that the holding power of the formulation in which the microcapsules were dispersed in the aqueous phase was also poor at room temperature and high temperature.

In addition, when the sample was used, the oil phase part and the water phase part were not uniformly mixed, so it was evaluated that the application power and application uniformity were somewhat deteriorated during use.

In the case of sample 7, the capsules were formed well, but large capsules with a maximum diameter of 5 mm were also formed, and the uniformity of the diameter of the capsules was somewhat poor. In addition, the formulation retention at room temperature was also found to be good, but the formulation retention at high temperature was found to be somewhat poor.

As such, since the diameter deviation of the capsules is large, a soft and stiff texture repeatedly appears during use, and the application power was evaluated as somewhat poor, and the application uniformity was evaluated to be poor for the same reason. In addition, moisturizing power and finish were evaluated as slightly lower than other samples.

Referring to the above experimental results, it was found that the formation of fine capsules and the ability to maintain the formulation were determined according to the content of the capsule forming agent, and the moisturizing power, application power, application uniformity, and finish were changed.

In particular, in order to prepare a cosmetic composition with excellent formulation forming ability, holding power, and feeling of use, it was confirmed that the capsule forming agent is preferably included in an amount of 10 to 500 parts by weight based on 100 parts by weight of the moisturizing oil of the oil phase, and more preferably 15.2 to 486.2 It was confirmed that it is preferable to include parts by weight.

[ Experimental example 2]

A cosmetic composition was prepared using the same method as in Preparation Example, but samples having different viscosities of the aqueous phase were prepared by changing the content of the aqueous thickener during preparation of the aqueous phase. At this time, the content ratio of the aqueous moisturizer and additives in the water phase part was kept constant by changing the content of the purified water according to the addition or subtraction of the aqueous thickener.

Thereafter, the formulation of each sample was visually observed in the same manner as in Experimental Example 1, and the results are shown in Table 4.

Prime Minister
Viscosity (cP) Formulation Observations fine oil
capsule formation room temperature formulation
Retention (24±2℃) high temperature formulation
Retention (37±3℃) sample 8 7,600 ○ X X sample 9 8,300 ○ ○ ○ sample 10 14,200 ○ ○ ○ sample 11 17,500 ○ ○ ○ sample 12 18,600 X ○ X

Looking at the results of Table 4, when the viscosity of the aqueous phase is less than 8,000 cP, as in Sample 8, it can be seen that microcapsules are formed, but the formulation holding power is poor. In particular, the dispersed state of the microcapsules was not maintained, and the microcapsules sedimented, resulting in an unstable formulation. This is seen as a result because the water phase portion did not form sufficient viscosity to maintain the dispersed state of the microcapsules. In the case of Samples 9 to 11, the microcapsules were well formed and the state in which they were dispersed in the water phase portion was found to be stably maintained at room temperature or high temperature.

In the case of sample 12, it was found that the formation ability of the microcapsules was poor. In particular, the problem appeared that the capsules were not formed into fine particles of a constant size, but were formed in a non-uniform size with a maximum diameter of 4.5 mm. In addition, these formulations were stably maintained at room temperature, but at high temperatures, formulation stability was reduced and layer separation occurred.

Therefore, from the results of this experiment, it was confirmed that the viscosity of the aqueous phase is preferably 8,000 to 18,000 cP, and more preferably 8,300 to 17,500 cP.

[ Experimental example 3]

Prepare a cosmetic composition using the same method as in Preparation Example, but prepare three types of water phase samples having viscosities of 8,000cP, 13,200cP and 17,400cP, respectively, and prepare five types of samples having oil phase viscosity of 28,000cP, 32,000cP, 35,000cP, 38,500cP and 43,000cP, respectively By combining each, 15 combinations of samples were prepared.

At this time, the contents of the aqueous thickener and the oil-based thickener were changed to form the viscosity, and the contents of purified water and moisturizing oil were changed according to the addition or subtraction of these thickeners, respectively.

Next, the formulation was observed for each sample in the same manner as in Experimental Example 2, and the results are shown in Table 5.

In addition, after having 20 subjects aged 20 to 40 apply each sample to the lower arm, the application performance of the cosmetic composition was evaluated using a 5-point scale method from poor application performance (1 point) to excellent application performance (5 points). The average values of the results are shown in Table 5 together.

The application performance was evaluated based on whether the oily phase and the water phase were uniformly mixed and applied smoothly, and whether the capsule shape of the oily phase was easily broken with little force.

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(cP) pay-per-view
(cP) Formulation Observations Application performance (points) fine oil
drop forming force room temperature formulation
Retention (24±2℃) sample 13 8,000 28,000 X X 4.8 sample 14 32,000 ○ ○ 4.8 sample 15 35,000 ○ ○ 4.5 sample 16 38,500 ○ ○ 4.4 sample 17 43,000 ○ ○ 2.7 sample 18 13,200 28,000 X X 4.7 sample 19 32,000 ○ ○ 4.6 sample 20 35,000 ○ ○ 4.4 sample 21 38,500 ○ ○ 4.2 sample 22 43,000 ○ ○ 2.8 sample 23 17,400 28,000 X X 4.4 sample 24 32,000 ○ ○ 4.4 sample 25 35,000 ○ ○ 4.2 sample 26 38,500 ○ ○ 3.9 sample 27 43,000 ○ ○ 2.6

Referring to the experimental results in Table 5, regardless of the viscosity of the water phase, when the viscosity of the oil phase was 30,000 cP or more, it was confirmed that the fine oil forming ability and the retention of the formulation at room temperature were good. However, when the viscosity of the oily phase was less than 30,000cP, it was found that the formulation in the form of microcapsules was not formed, confirming that the viscosity of the oily phase was preferably 30,000cP or more. In addition, regardless of the viscosity of the oil phase, when the viscosity of the oily phase was 40,000cP or more, the application performance was evaluated to be poor. It was evaluated that the capsule caused irritation and did not apply smoothly to the skin.

Therefore, from the results of this experiment, it was confirmed that the viscosity of the oily phase is preferably 30,000 to 40,000 cP, and more preferably 32,000 to 38,500 cP.

The present invention is not limited to the specific embodiments and descriptions described above, and various modifications can be made by anyone skilled in the art without departing from the gist of the present invention claimed in the claims, and such modifications will fall within the protection scope of the present invention.

Claims (7)

an aqueous phase comprising purified water, an aqueous moisturizer, an additive and an aqueous thickening agent; and
An oil phase portion uniformly dispersed in the form of a plurality of capsules in the water phase portion;
The oil phase part includes 10 to 500 parts by weight of a pigment and 10 to 500 parts by weight of a capsule forming agent based on 100 parts by weight of moisturizing oil,
The additive includes at least one or more of a sequestering agent, a preservative, a pH adjusting agent, and a pigment,
The capsule forming agent comprises 80 to 130 parts by weight of behenyl alcohol, 18 to 30 parts by weight of fatty acids having 16 to 19 carbon atoms, 20 to 35 parts by weight of fatty alcohols containing at least one of cetyl alcohol, stearyl alcohol and cetearyl alcohol, and 10 to 55 parts by weight of an oily thickener, based on 100 parts by weight of hydrogenated vegetable oil.
A cosmetic composition containing a capsule having a base makeup function, characterized in that the viscosity of the aqueous phase is 8,300 to 17,500 cP and the viscosity of the oil phase is 30,000 to 40,000 cP. According to claim 1,
A cosmetic composition containing a capsule having a base makeup function, characterized in that the diameter of the capsule ranges from 0.1 to 2.0 mm. According to claim 1,
The oil phase part, characterized in that it is included in 3 to 45 parts by weight based on 100 parts by weight of the water phase part, a cosmetic composition containing a capsule having a base makeup function. delete delete An oil phase preparation step of preparing an oil phase composition by mixing 100 parts by weight of moisturizing oil, 10 to 500 parts by weight of a pigment, and 10 to 500 parts by weight of a capsule forming agent and stirring at a rotational speed of 200 to 2,000 rpm;
An aqueous phase preparation step of preparing an aqueous phase composition by mixing purified water, an aqueous moisturizer, an additive and an aqueous thickener and stirring at a rotational speed of 200 to 1,500 rpm; and
A dispersing step of uniformly dispersing the oil phase composition in the form of capsules having a diameter in the range of 0.1 to 2.0 mm in the aqueous phase composition by mixing the aqueous phase composition and the oil phase composition and stirring at a rotational speed of 1,000 to 9,000 rpm;
The additive includes at least one or more of a sequestering agent, a preservative, a pH adjusting agent, and a colorant,
The capsule forming agent comprises 80 to 130 parts by weight of behenyl alcohol, 18 to 30 parts by weight of fatty acids having 16 to 19 carbon atoms, 20 to 35 parts by weight of fatty alcohols containing at least one of cetyl alcohol, stearyl alcohol and cetearyl alcohol, and 10 to 55 parts by weight of an oily thickener, based on 100 parts by weight of hydrogenated vegetable oil.
The viscosity of the water phase is 8,300 to 17,500 cP, and the viscosity of the oil phase is 30,000 to 40,000 cP,
The method for producing a cosmetic composition containing a capsule having a base makeup function, characterized in that the oil phase part is included in 3 to 45 parts by weight based on 100 parts by weight of the water phase part.
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