KR102575391B1 - Cosmetic composition for washing with thermostability and process of the preparation thereof - Google Patents

Abstract

The present invention relates to a creamy cleansing cosmetic composition comprising an aqueous phase component, an oil phase component, and a detergent component, wherein the oil phase component includes fatty acid and hydrogenated polyisobutene, and a method for producing the same, which is stored at a high temperature for a long period of time. However, it has excellent stability, can exhibit sufficient detergency, and can maintain cream properties and its feeling of use.

Description

Cosmetic composition for washing with excellent high temperature stability and method for manufacturing the same {Cosmetic composition for washing with thermostability and process of the preparation thereof}

The present invention is a creamy cosmetic composition for cleansing, and more specifically, a creamy cosmetic composition for cleansing that includes an aqueous phase component, an oily component, and a detergent component, wherein the oily component includes fatty acid and hydrogenated polyisobutene; It relates to a manufacturing method thereof.

Washing refers to the act of washing to remove dust, waste materials, dead skin cells, etc. from the face and body, and for this purpose, a face wash such as soap or cleansing foam is used.

Cosmetics for cleaning have a cleaning function through a saponification reaction by adding alkali to fatty acids. When the temperature of these cleaning cosmetics rises, the fatty acid itself melts, or the solubility of water contained in the cosmetic gradually increases, causing problems in dissolving the fatty acid. As a result, the properties of the cleaning cosmetic are separated and the original formulation cannot be completely restored even if the temperature is lowered again, resulting in the loss of its function as a cosmetic.

In addition, there has been a series of heat waves in the summer with temperatures exceeding 40℃, making it easy for products to be exposed to high temperatures, and the temperature rises even higher in closed spaces, so there is a need to pay more attention to storing products. did.

Accordingly, the present inventors developed a cleaning cosmetic composition that stabilizes fatty acids contained in cleaning cosmetics, prevents separation of cosmetic properties even at high temperatures, and has formulation stability and storage stability.

An object of the present invention is to provide a cosmetic composition for washing, which has excellent stability at a temperature of 50 ° C. or higher, and a method for preparing the same, while maintaining the properties and feeling of use of the cosmetic for washing having a washing function through a saponification reaction of fatty acids.

The present invention provides a cream-like cosmetic composition for cleansing, which includes an aqueous phase component, an oil phase component, and a detergent phase component, and wherein the oil phase component includes fatty acid and hydrogenated polyisobutene. By including fatty acid and hydrogenated polyisobutene together, hydrogenated polyisobutene can stabilize the fatty acid and have excellent high temperature stability.

The cleansing cosmetic composition of the present invention suppresses the melting of fatty acids due to an increase in temperature and the dissolution of fatty acids due to an increase in the solubility of water contained in the product, providing excellent formulation stability and storage stability even when stored for a long period of time at a high temperature of 50 ° C. or higher. You can have it. In addition, even when stored for a long time at a high temperature, the cream properties can be maintained.

Figure 1 is a graph measuring the transmittance of Comparative Example 1 in <Experimental Example 1>.
Figure 2 is a graph measuring the transmittance of Example 1 in <Experimental Example 1>.
Figure 3 is a graph measuring the transmittance of Example 2 in <Experimental Example 1>.
Figure 4 is a graph measuring the transmittance of Example 3 in <Experimental Example 1>.
Figure 5 is a graph measuring the transmittance of Example 4 in <Experimental Example 1>.
Figure 6 is a graph measuring the transmittance of Example 5 in <Experimental Example 1>.
Figure 7 is a graph measuring the transmittance of Example 6 in <Experimental Example 1>.
Figure 8 is a graph measuring the transmittance of Example 7 in <Experimental Example 1>.
Figure 9 is a graph measuring the transmittance of Example 8 in <Experimental Example 1>.
Figure 10 is a graph measuring the transmittance of Example 9 in <Experimental Example 1>.
Figure 11 is a graph measuring the transmittance of Example 10 in <Experimental Example 1>.
Figure 12 is a graph measuring the transmittance of Example 11 in <Experimental Example 1>.
Figure 13 is a graph measuring the transmittance of Example 12 in <Experimental Example 1>.
Figure 14 is a photograph of visual observation of Comparative Example 1 and Examples 1 to 4 in <Experimental Example 2> after storing them at 50°C for 1 hour.
Figure 15 is a photograph of visual observation of Examples 5 to 8 in <Experimental Example 2> after storing them at 50°C for 1 hour.
Figure 16 is a photograph of visual observation of Examples 9 to 12 in <Experimental Example 2> after storing them at 50°C for 1 hour.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description.

However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

The present invention provides a creamy cleansing cosmetic composition comprising an aqueous phase component, an oil phase component and a detergent phase component, wherein the oil phase component contains a fatty acid and hydrogenated polyisobutene.

The cosmetic composition for cleaning of the present invention has a cleaning function through a fatty acid saponification reaction. When the viscosity of fatty acids is improved, it is possible to prevent phase separation and loss of cleaning function at high temperatures. Here, hydrogenated polyisobutene may serve as a thickener for improving the viscosity of fatty acids.

In other words, adding hydrogenated polyisobutene increases the viscosity of the fatty acid so that the physical distance between molecules does not increase due to melting of the fatty acid, allowing the fatty acid to have cleaning power without melting.

In the present invention, “high temperature” means a temperature of 40°C or higher, 45°C or higher, and 50°C or higher, specifically, 50°C or higher and 80°C or lower, 50°C or higher and 70°C or lower, 50°C or higher and 65°C or lower, and 50°C or higher. Means a temperature of 60 ° C or less.

The hydrogenated polyisobutene may be included in an amount of 3 to 12% by weight based on the total weight of the cosmetic composition. Preferably, hydrogenated polyisobutene is 3 to 10% by weight, 3 to 9.5% by weight, 3.5 to 9.5% by weight, 4 to 9% by weight, 4.5 to 9% by weight, and 4.5 to 8.5% by weight, based on the total weight of the cosmetic composition. , It may be included in 5 to 8% by weight. If the hydrogenated polyisobutene is included in an amount of less than 3% by weight, the amount is not sufficient to improve the viscosity of the fatty acid, which may affect the stability of the formulation and result in property separation when stored at high temperatures. Additionally, when the hydrogenated polyisobutene is included in an amount exceeding 12% by weight, phase separation may occur at high temperatures due to the water-repellent properties of the hydrogenated polyisobutene.

In one embodiment of the present invention, the fatty acid includes one or more selected from the group consisting of stearic acid, myristic acid, lauric acid, palmitic acid, oleic acid, behenic acid, and isostearic acid. It can be, preferably one or more selected from the group consisting of stearic acid, myristic acid, lauric acid and palmitic acid, more preferably stearic acid, myristic acid, lauric acid and May contain all 4 palmitic acid.

The fatty acid may be included in 10 to 50% by weight based on the total weight of the cosmetic composition. More preferably, it may be 15 to 50% by weight, 15 to 45% by weight, 20 to 45% by weight, 20 to 40% by weight, and most preferably 30% by weight. If the fatty acid is contained in less than 10% by weight, the detergency and viscosity are insufficient, and if the fatty acid is contained in more than 50% by weight, the viscosity may be too high and the detergency may be reduced.

In the cleaning cosmetic composition of the present invention, the water phase component may include a solvent, a moisturizer, a metal sequester, a preservative, and a pH adjuster, the oil phase component may include a nonionic surfactant, and the detergent component may include a nonionic surfactant. Amphoteric surfactants may be included.

The solvent may be purified water (water).

The moisturizing agent may be polyol, and specifically may include glycerin, PEG-8, butylene glycol, propylene glycol, or a mixture thereof, preferably glycerin and PEG-8. 8 (PEG-8). The moisturizer may be included in an amount of 10 to 60% by weight relative to the total weight of the cosmetic composition, preferably 15 to 55% by weight, 15 to 50% by weight, 20 to 50% by weight, 20 to 45% by weight, and 25 to 45% by weight. , or 30 to 40% by weight. If the humectant is included in less than 10% by weight, the saponification reaction may not be smooth and the cleaning power may be reduced, and if the humectant is included in more than 60% by weight, the moisture content of the product may be insufficient.

Any metal sequestering agent commonly used in the art may be used without limitation, preferably disodium-EDTA. The metal blocker is 0.05 to 2% by weight, 0.05 to 1.8% by weight, 0.05 to 1.5% by weight, 0.05 to 1% by weight, 0.1 to 1% by weight, 0.3 to 0.8% by weight, preferably 0.5% by weight, based on the total weight of the cosmetic composition. It may be %. When the metal sequestering agent is included in an amount of less than 0.05% by weight, formulation stability is deteriorated, and when the metal sequestering agent is included in an amount of more than 2% by weight, the skin may be irritated.

The preservative may be used without limitation as long as it is a preservative commonly used in the art, and is preferably sodium benzoate.

The pH adjuster can be used without limitation as long as it is a pH adjuster commonly used in the industry, and is preferably potassium hydroxide. The pH adjuster is used in an amount of 3 to 10% by weight, 3.5 to 9% by weight, 3.5 to 8% by weight, 4 to 7% by weight, 4.5 to 6% by weight, 5 to 6% by weight, preferably 5.4% by weight, based on the total weight of the cosmetic composition. It can be. If the pH adjuster is included in less than 3% by weight, the saponification reaction is insufficient and the cleaning power is lowered, and if the pH adjuster is included in more than 10% by weight, even the viscosity fatty acids may undergo a saponification reaction and the viscosity may decrease.

The nonionic surfactant can be used without limitation as long as it is a nonionic surfactant commonly used in the art. Specifically, glyceryl stearate, PEG-100 stearate, PEG-40 stearate, PEG-150 distearate, polysorbate 20, polysorbate 60, polysorbate 80, glycol distearate. and Laureth-7, and preferably glyceryl stearate. The nonionic surfactant may be 0.5 to 3% by weight, 0.5 to 2.5% by weight, 0.5 to 2% by weight, and 1 to 2% by weight, and preferably 1.5% by weight, based on the total weight of the cosmetic composition. If the nonionic surfactant is included in less than 0.5% by weight, the formulation stability may be affected and phase separation may occur, and if the nonionic surfactant is included in more than 3% by weight, cleaning power may be reduced.

The amphoteric surfactant can be used without limitation as long as it is an amphoteric surfactant commonly used in the art. Specifically, cocamidopropyl betaine, oleamidopropyl betaine, lauryl hydroxysulfate, lauramidopropyl hydroxysulfate, cocamidopropyl hydroxysulfate, sodium lauroamphoacetate, sodium cocoamphoacetate. , Disodium Lauroamphodiacetate, Disodium Cocoamphodiacetate, Disodium Lauriminodipropionate Tocopheryl Phosphate, Disodium Cocoamphodipropionate, Sodium Lauraminopropionate, and Sodium Cocoamphophyllate. It may contain one or more types selected from the group consisting of ropionate, and may preferably be cocamidopropyl betaine. The amphoteric surfactant is present in an amount of 1 to 5% by weight, 1 to 4.5% by weight, 1 to 4% by weight, 1.5 to 4% by weight, 1.5 to 3.5% by weight, 1.5 to 3% by weight, 2 to 3% by weight, based on the total weight of the cosmetic composition. % by weight, preferably 2.4% by weight. If the amphoteric surfactant is included in an amount of less than 1% by weight or more than 5% by weight, the stability of the formulation may be affected and phase separation may occur.

The present invention furthermore, in order to maintain the basic physical properties and quality, one or more substances selected from the group consisting of pigments, chelating agents, antioxidants, disinfectants, fragrances and dyes that can be commonly used in cosmetic compositions for cleaning are added. It can be included.

In addition, the cosmetic composition for cleaning of the present invention may be creamy.

The present invention also provides a method for producing a creamy cosmetic composition for cleansing.

Specifically, the manufacturing method of the present invention includes the steps of (A) mixing a humectant, fatty acid, nonionic surfactant, and hydrogenated polyisobutene at a temperature of 60 to 100°C; (B) adding a pH adjusting agent to the mixture prepared in (A); and (C) mixing the metal sequestering agent and the amphoteric surfactant at a temperature of 40 to 80° C. and adding it to the mixture prepared in (B).

Step (A) may be a step of mixing a humectant, fatty acid, nonionic surfactant, and hydrogenated polyisobutene at a temperature of 70 to 90°C, preferably 80°C.

The step (B) may be a step of adding the pH adjuster to the mixture prepared in (A) and then performing a saponification reaction for 3 to 10 minutes, preferably 5 minutes.

The step (C) may be a step of mixing the solvent, preservative, metal sequestering agent, and amphoteric surfactant at a temperature of 40 to 80° C. and adding them to the mixture prepared in (B). More specifically, the solvent, preservative, metal sequestering agent, and amphoteric surfactant may be mixed at a temperature of 40 to 80°C, preferably 60°C, added to the mixture prepared in (B), and then mixed. there is.

The manufacturing method of the present invention may include, in addition to the steps (A) to (C), (D) cooling the product of (C) to 10 to 35 ° C. while stirring.

The solvent, preservative, moisturizer, fatty acid, nonionic surfactant, hydrogenated polyisobutene, pH adjuster, metal sequestering agent, and amphoteric surfactant used in the production method of the present invention are all cosmetic compositions for cleaning of the present invention. As described in

In addition, the present invention may provide a cleaning cream product containing the cosmetic composition for cleaning. The cleansing cream product may be in the form of a face wash, body wash, hand wash, foam cleanser, or bath additive.

Hereinafter, the present invention will be described in more detail through examples according to the present invention, but the scope of the present invention is not limited to the examples presented below.

Example

Cosmetic compositions of Examples 1 to 12 and Comparative Example 1 were prepared in the following manner using the components and contents (% by weight) shown in Table 1 below.

<Manufacturing Example 1>

Raw material 4, raw material 5, raw material 7, raw material 8, raw material 9, raw material 10, raw material 11, and raw material 12 were weighed in the main beaker and mixed uniformly using an AGI mixer at a temperature of 80°C. Afterwards, raw material 6 was weighed in a separate beaker and then slowly added to the mixture in the main beaker for a saponification reaction for 5 minutes. Then, as the aqueous phase, raw material 1, raw material 2, raw material 3, and raw material 13 were weighed in a separate beaker and mixed uniformly using an AGI Mixer at a temperature of 60°C. Then, the composition in the separate beaker was added to the mixture in the main beaker and mixed uniformly. Washing cosmetic compositions of Examples 1 to 12 were prepared by cooling the main beaker to 25° C. while stirring.

<Manufacturing Example 2>

The cleaning cosmetic composition of Comparative Example 1 was prepared using the same manufacturing method as in Preparation Example 1 except that raw material 12 was not used.

<Experimental Example 1> 50 ℃ dispersion stability evaluation

For the 50°C stability evaluation, phase separation was measured by transmittance under 50°C temperature conditions using an instrument that measures dispersion stability. The compositions of Examples 1 to 12 and Comparative Example 1 were placed in a container, and the transmittance of the container was measured every 25 seconds for 1 hour through an instrument. If separation occurs at 50°C, the water phase transparently sinks and the transmittance increases at the bottom of the container, confirming that there is a stability problem. The transmittance measurement results of the compositions of Examples 1 to 12 and Comparative Example 1 are shown in FIGS. 1 to 13, respectively.

As shown in Figures 1 to 13, it can be seen that Figure 1, which is the result of Comparative Example 1, has the highest transmittance and is unstable, and as the content of hydrogenated polyisobutene increases, the transmittance decreases, indicating separation at high temperatures. blocking effect could be observed.

<Experimental Example 2> 50 ℃ stability visual evaluation

To visually evaluate the formulation's stability at 50°C, the compositions of Examples 1 to 12 and Comparative Example 1 were placed in a container and stored at 50°C for 1 hour. Separation was observed by visually observing the bottom and top of the container to see whether it maintained its white creamy appearance. The results observed with the naked eye are shown in FIGS. 14 to 16 .

As shown in Figures 14 to 16, it can be seen that the compositions of Examples 1 to 12 have superior stability than the composition of Comparative Example 1 by maintaining a creamy appearance without phase separation at 50°C.

Claims (17)

It includes an aqueous phase component, an oil phase component and a detergent phase component, wherein the oil phase component includes a fatty acid, hydrogenated polyisobutene, and a nonionic surfactant,
The content of the fatty acid is 10 to 50% by weight based on the total weight of the cosmetic composition,
A creamy cosmetic composition for cleaning, characterized by excellent stability at a temperature of 50°C to 80°C. According to claim 1,
The content of the hydrogenated polyisobutene is 3% to 12% by weight relative to the total weight of the cosmetic composition cosmetic composition for cleaning. delete According to claim 1,
The fatty acid includes at least one selected from the group consisting of stearic acid, myristic acid, lauric acid, palmitic acid, isostearic acid, behenic acid, capronic acid, linoleic acid, and oleic acid A cosmetic composition for cleaning. According to claim 1,
A cosmetic composition for cleaning wherein the water phase component includes a solvent, a moisturizer, a metal sequester, a preservative, and a pH adjuster, and the detergent phase component includes an amphoteric surfactant. According to claim 5,
The amphoteric surfactant is cocamidopropyl betaine, oleamidopropyl betaine, lauryl hydroxysultaine, lauramidopropylhydroxysultaine, cocamidopropylhydroxysultaine, sodium lauroamphoacetate, sodium Cocoamphoacetate, disodium lauroamphodiacetate, disodium cocoamphodiacetate, disodium lauriminodipropionate tocopheryl phosphate, disodium cocoamphodipropionate, sodium lauraminopropionate, and sodium A cosmetic composition for cleaning containing at least one member selected from the group consisting of cocoamphopropionate. According to claim 1,
The nonionic surfactants include glyceryl stearate, PEG-100 stearate, PEG-40 stearate, PEG-150 distearate, polysorbate 20, polysorbate 60, polysorbate 80, and glycol distearate. A cosmetic composition for cleansing comprising at least one selected from the group consisting of theearate and Laureth-7. According to claim 5,
A cosmetic composition for cleaning wherein the content of the moisturizer is 10 to 60% by weight based on the total weight of the cosmetic composition. According to claim 5,
A cosmetic composition for cleaning wherein the content of the metal sequestering agent is 0.05 to 2% by weight based on the total weight of the cosmetic composition. According to claim 5,
A cosmetic composition for cleaning wherein the content of the pH regulator is 3 to 10% by weight based on the total weight of the cosmetic composition. According to claim 1,
A cosmetic composition for cleaning wherein the content of the nonionic surfactant is 0.5 to 3% by weight based on the total weight of the cosmetic composition. According to claim 5,
A cosmetic composition for cleaning wherein the content of the amphoteric surfactant is 1 to 5% by weight based on the total weight of the cosmetic composition. delete A method for producing a creamy cleansing cosmetic composition according to claim 1, comprising the following steps:
(A) mixing a humectant, fatty acid, nonionic surfactant, and hydrogenated polyisobutene at a temperature of 60 to 100°C;
(B) adding a pH adjuster to the mixture prepared in (A); and
(C) Mixing the metal sequestering agent and the amphoteric surfactant at a temperature of 40 to 80° C. and adding it to the mixture prepared in (B). 15. The method of claim 14,
(D) cooling the product of (C) to 10 to 35° C. while stirring. According to claim 14,
The fatty acid includes at least one selected from the group consisting of stearic acid, myristic acid, lauric acid, palmitic acid, isostearic acid, behenic acid, capronic acid, linoleic acid, and oleic acid A method of producing a cosmetic composition for cleaning. A cleaning cream product comprising the cosmetic composition for cleaning according to any one of claims 1, 2, and 4 to 12.