WO2020179947A1 - Method of preparing cosmetic composition having oil phase in form of particles, and cosmetic composition prepared thereby - Google Patents

Abstract

The present invention relates to a method of preparing a cosmetic composition having a novel formulation, and a cosmetic composition prepared thereby. The method of preparing a cosmetic composition according to one aspect can produce, without using oil capsules or emulsifiers, which are conventionally used raw materials, a cosmetic composition having a novel formulation in which a transparent oil phase is distributed in an aqueous phase, in the form of particles. The cosmetic composition according to another aspect can contain an oil component while maintaining a transparent outer appearance, and thus can possess excellent moisturizing power.

Description

Method for producing a cosmetic composition having an oily phase in the form of particles, and a cosmetic composition prepared therefrom

It relates to a method for manufacturing a cosmetic composition having a novel formulation and a cosmetic composition prepared thereby.

In the case of a cosmetic formulation having a transparent appearance, since there is no specificity in the appearance, the only way to introduce the advantages of the cosmetic product was to appeal the feeling of use and effect of the cosmetic.

Accordingly, in the case of transparent cosmetics, capsules, pearls, etc. were added to enhance the differentiation of the appearance, so that it was developed to attract the primary consumer's attention. However, raw materials such as capsules and pearls, which are ready-made raw materials, have the disadvantage of being easy to manufacture copy products.

Therefore, it is necessary to develop a technology that can differentiate cosmetic formulations without the addition of ready-made raw materials such as capsules and pearls.

In one aspect, preparing an aqueous phase by mixing an aqueous component including an aqueous solvent and an aqueous thickener; Preparing an oil phase by mixing an oily component including an oil and an oily gelling agent; And it provides a method for producing a cosmetic composition comprising the step of preparing a cosmetic composition having a formulation in which the aqueous phase and the oil phase are distributed in the continuous phase by mixing and stirring the aqueous phase and the oil phase.

Another aspect provides a cosmetic composition having a formulation in which an oil phase, which is a discontinuous phase, is distributed in an aqueous phase, which is a continuous phase prepared by the above method.

In one aspect, preparing an aqueous phase by mixing an aqueous component including an aqueous solvent and an aqueous thickener; Preparing an oil phase by mixing an oily component including an oil and an oily gelling agent; And it provides a method for producing a cosmetic composition comprising the step of preparing a cosmetic composition having a formulation in which the aqueous phase and the oil phase are distributed in the continuous phase by mixing and stirring the aqueous phase and the oil phase.

In one embodiment, the formulation may be distributed in the form of particles having an average particle diameter of 0.01 to 5 mm, 0.1 to 5 mm, or 1 to 5 mm of the discontinuous phase to the continuous phase of the water phase.

The term "average particle diameter (50% diameter of particle, D50)" means a particle diameter corresponding to 50% of the weight percentage in the particle size distribution curve, that is, the particle diameter at which the passing mass percentage becomes 50%.

The method may be to do not use an emulsifier for emulsifying the aqueous phase and oil phase. Since the above method does not use an emulsification method of emulsifying the water phase and oil phase with an emulsifier, the prepared cosmetic composition can maintain transparency.

The method includes preparing an aqueous phase by mixing an aqueous component including an aqueous solvent and an aqueous thickener.

In the step of preparing the aqueous phase, aqueous components other than the aqueous thickener may be dissolved in an aqueous solvent and then the aqueous thickener may be mixed. When dissolving an aqueous component other than the aqueous thickener in an aqueous solvent, the temperature can be appropriately selected at a temperature at which the aqueous component can be completely dissolved in the aqueous solvent. Specifically, the aqueous component excluding the aqueous thickener is 30 to 90 ℃, 40 to 90 ℃, 50 to 90 ℃, 60 to 90 ℃, 30 to 80 ℃, 40 to 80 ℃, 50 to 80 ℃, 60 to 80 ℃ , 50 to 90 ℃, 60 to 80 ℃, or can be dissolved in an aqueous solvent at 60 to 70 ℃.

The type of the aqueous component is not limited as long as it is an aqueous component commonly used in cosmetics and has a property that is easily soluble in water. For example, the aqueous component may include purified water, alcohol, glycerin, butylene glycol, dipropylene glycol, and the like. The type of alcohol is not limited, but may be, for example, ethanol. The aqueous component may include one or more.

The aqueous solvent may be purified water or alcohol, but is not limited thereto.

The type of the aqueous thickener is not limited as long as it is a component capable of increasing the viscosity of the aqueous phase. For example, the aqueous thickener is carbomer, acrylate/C10-30 alkyl acrylate crosspolymer, ammonium acryloyldimethyltaurate/VP copolymer, ammonium acryloyldimethyltaurate/behenes-25 methacrylic Rate crosspolymer, hydroxyethyl acrylate/sodium acryloyldimethyltaurate copolymer, sodium polyacrylate, polyacrylate crosspolymer-6, xanthan gum, gelatin, guar gum, cassia gum, gellan gum, carob bean gum, It may be one or more selected from the group consisting of agar, algin, mannan, pectin, and cellulose, but is not limited thereto. The cellulose may include a cellulose derivative.

By performing the step of preparing the aqueous phase, the aqueous components may have a cohesive force.

The method includes preparing an oil phase by mixing an oil and an oily component including an oily gelling agent.

The mixing temperature of the oil and the oily gelling agent may be 60 to 110 °C, 70 to 110 °C, 80 to 110 °C, or 90 to 110 °C, but is not limited thereto.

In one embodiment, the oil may be included in 1 to 20% by weight, 1 to 15% by weight, or 1 to 10% by weight based on the total weight of the composition, but is not limited thereto.

The type of oil is not limited if it is an oil commonly used in cosmetics. For example, the oil may be one or more selected from the group consisting of ester oils, hydrocarbon oils, silicone oils, vegetable oils, and triglycerides, but is not limited thereto.

The ester-based oil may be an ester compound of a fatty acid and a fatty alcohol. For example, the ester-based oil is Isopropyl Myristate, Isopropyl Palmitate, Cetyl Octanoate, Cetyl 2-Ethyl Hexanoate (Cetyl 2-Ethyl Hexanoate). , 2-Octyl Dodecyl Myristate, Di-isostearyl Malate, and the like, but are not limited thereto.

The hydrocarbon-based oil may include petroleum-based oils such as liquid paraffin, petrolatum, and isoparaffin; Synthetic oils such as hydrogenated polydecene, synthetic squalane, and polybutene; Vegetable squalane and vegetable oils such as hydrogenated squalane may be included, but are not limited thereto.

The silicone-based oil may be an oil having a siloxane bond (Si-O-Si). For example, the silicone oil may be dimethicone, dimethiconol, phenyl trimethicone, disiloxane, cyclomethicone, cyclopentasiloxane, or Cyclohexasiloxane may be included, but is not limited thereto.

The vegetable oil may be an oil obtained from a plant existing in nature. For example, the vegetable oils are olive oil, meadowfoam seed oil, rosehip fruit oil, avocado oil, camellia oil, apple seed oil, grape seed oil, sunflower seed oil, macadamia seed oil, castor oil, jojoba seed oil, capryl Rick/Capric triglyceride may be included, but is not limited thereto.

The triglyceride may be a compound in which three molecules of fatty acids are ester-bonded to glycerol.

The oily gelling agent may mean a substance capable of making the oily phase into a gel state by crosslinking, coagulation, or the like. For example, the oily gelling agent may be one or more selected from the group consisting of dextrin fatty acid ester, sodium stearate, and particulate silica, but is not limited thereto. The dextrin fatty acid ester may be an ester compound of a starch-derived dextrin and a higher fatty acid. The dextrin fatty acid ester may include dextrin palmitate, dextrin laurate, dextrin myristate, dextrin stearate, dextrin palmitate/ethylhexanoate, and the like, but is not limited thereto. The gelatinous oily phase obtained by using the oily gelling agent may be a transparent gel.

In one embodiment, the oily gelling agent may be included in 0.1 to 5.0% by weight, or 1.0 to 5.0% by weight based on the total weight of the composition, but is not limited thereto.

By performing the step of preparing the oil phase, the oily components may have a cohesive force.

The method includes the step of mixing and stirring the aqueous phase and the oil phase to prepare a cosmetic composition having a formulation in which an oil phase as a discontinuous phase is distributed in an aqueous phase as a continuous phase.

The mixing and stirring step may be agitating while adding the oil phase to the aqueous phase.

The stirring speed of the aqueous phase and the oil phase may be 10 to 5000 rpm. When the stirring speed is less than 10 rpm, the oil phase is solidified into a lump, so that the oil phase is not distributed in the aqueous phase and can be separated into two phases. When the stirring speed exceeds 5000 rpm, it may be difficult to confirm the differentiation of the appearance because the oily particles are formed too small, it may be an oil-in-water emulsion formulation. The oil-in-water emulsion formulation cannot form a transparent appearance because the appearance of the formulation is cloudy.

After mixing and stirring the aqueous phase and the oil phase, it may further include the step of cooling. In one embodiment, after mixing and stirring the aqueous phase and the oil phase, it may be cooled to 45 °C. In another embodiment, after mixing and stirring the aqueous phase and the oil phase, it may be cooled to 30 °C. In another embodiment, after mixing and stirring the aqueous phase and the oil phase, it may be cooled to 10 to 45 °C.

The method may further include a degassing step after the cooling step. The degassing may mean removing gas dissolved in the aqueous phase and the oil phase. The degassing may use a method commonly used in a cosmetic manufacturing process.

Since the cosmetic composition prepared above has viscosity in both the aqueous phase and the oil phase, the oil phase may be distributed at different positions in the aqueous phase.

The cosmetic composition may also contain additional ingredients commonly used in cosmetics, such as preservatives, colorants, flavors, fillers, preservatives, neutralizing agents, sunscreens, sweeteners, vitamins, free-radical scavengers, sequestering agents, and mixtures thereof. Any conventional cosmetic ingredients that may be selected from may further be included.

One of skill in the art can select any additional ingredients and/or amounts thereof so that the advantageous properties of the composition according to the present specification are not adversely affected or substantially unaffected by the expected addition.

Another aspect provides a cosmetic composition having a formulation in which an oil phase, which is a discontinuous phase, is distributed in an aqueous phase, which is a continuous phase, prepared by the method for preparing the cosmetic composition.

In one embodiment, the formulation may be distributed in the form of particles having an average particle diameter of 0.01 to 5 mm, 0.1 to 5 mm, or 1 to 5 mm of the discontinuous phase to the continuous phase of the water phase.

The aqueous phase, oil phase, and cosmetic composition are as described above.

The cosmetic composition may have a transparent formulation. In general, the cosmetic composition in a transparent formulation may not be able to add an oil component to maintain a transparent appearance. This is because when prepared as an oil-in-water emulsion formulation to add an oil component, the formulation is not transparent and cloudy. However, in the cosmetic composition prepared by the method according to an embodiment, since the oil phase, which is a discontinuous phase, is transparently distributed in the water phase, which is a continuous phase, it can not only maintain transparency, but also increase the moisturizing power of the cosmetic composition according to the oil component content. have.

Since the cosmetic composition prepared above has viscosity in both the aqueous phase and the oil phase, the oil phase may be distributed at different positions in the aqueous phase.

The cosmetic composition prepared above can be differentiated in appearance because the oil phase in the form of particles is distributed in the aqueous phase even though the existing raw materials such as capsules and beads are not used.

Expressions such as the term "about", or approximately (approximately)" mean that the stated value can vary to some extent, for example, the value is 10%, 5%, 2%, or 1 %, in some embodiments, the value may vary by 5%, 2%, or 1%, for example, "about 5" is between 4.5 and 5.5, 4.75 and 5.25 , Or between 4.9 and 5.1, or between 4.95 and 5.05.

The terms “have”, “may have”, “includes”, or “may contain” indicate the presence of a corresponding feature (eg, a number, or a component such as a component), and Does not exclude existence.

In the present specification, the singular also includes the plural unless otherwise indicated by the context. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of contradiction, the present specification will control.

A method of manufacturing a cosmetic composition according to an aspect may prepare a cosmetic composition having a novel formulation in which a transparent oil phase is distributed in the form of particles in an aqueous phase without using an oil capsule or emulsifier, which is an existing raw material.

The cosmetic composition according to another aspect has excellent moisturizing power because it can contain an oil component while maintaining a transparent appearance.

1 is a photograph of a cosmetic composition prepared according to an example.

FIG. 2 is a photograph showing the appearance of a cosmetic composition prepared according to an example when applied to a Spetchula.

3 is a photograph of a cosmetic composition including a capsule which is a ready-made raw material.

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

Example 1: Preparation of cosmetic composition

A cosmetic composition having a formulation in which the oil phase, which is a discontinuous phase, is distributed in the form of particles, was prepared by performing the methods of 1) to 4) below.

1) After completely dissolving components 1 to 4 at 60 to 70° C., component 5 (aqueous thickener) was mixed to prepare an aqueous phase.

2) Component 6 (oil) and component 7 (oil gelling agent) were dissolved by heating at about 100° C. to prepare an oil phase.

3) The oil phase was added to the aqueous phase and mixed at a mixing speed of 10 to 5000 rpm.

4) It cooled to about 30°C and degassed.

Table 1 below shows the specific components and contents of the cosmetic composition prepared according to Example 1. Unless stated otherwise herein, component content is in weight percent.

No.	ingredient	Content (% by weight)
One	Purified water	To 100
2	glycerin	10
3	antiseptic	Appropriate amount
4	corrector	Appropriate amount
5	Carbomer 1% (w/w) solution	20
6	Caprylic/Capric Triglyceride	10
7	Dextrin palmitate	3

1 is a photograph of a cosmetic composition prepared according to Example 1.

FIG. 2 is a photograph showing the appearance of the cosmetic composition prepared according to Example 1 when applied to Spetchula.

As shown in FIGS. 1 and 2, the cosmetic composition prepared according to Example 1 had a formulation in which an oil phase, which is a continuous phase, and an oil phase, which is a discontinuous phase, are distributed in the form of particles, and the oil phase was maintained transparent. Therefore, granules were formed without the use of capsules, which are the existing raw materials, and showed the appearance as if the capsule ingredients were mixed. In addition, since both the water phase and the oil phase have viscosity, the oil phase could be distributed in an unmoved position in the water phase.

Comparative Example 1: Preparation of an oil-in-water emulsion formulation cosmetic composition

A cosmetic composition of a general oil-in-water emulsion formulation was prepared.

Specifically, a cosmetic composition was prepared in the same manner as in Example 1, except that polyglyceryl-3methylglucose distearate, an emulsifier, was used instead of dextrin palmitate, an oily gelling agent. Table 2 below shows the specific components and contents of the cosmetic composition prepared according to Comparative Example 1.

No.	ingredient	Content (% by weight)
One	Purified water	To 100
2	glycerin	10
3	antiseptic	Appropriate amount
4	corrector	Appropriate amount
5	Carbomer 1% (w/w) solution	20
6	Caprylic/Capric Triglyceride	10
7	Polyglyceryl-3 methyl glucose distearate	3

As a result, the oil was emulsified in the water phase as fine particles to obtain an opaque creamy cosmetic composition.

Comparative Example 2: Preparation of a cosmetic composition containing a capsule

A cosmetic composition containing an oil capsule was prepared. Specifically, the oil capsule was used having a caprylic/capric triglyceride as an inner case and consisting of hydrolyzed collagen and arabic rubber as a capsule film. In Table 3 below, specific components and contents of the cosmetic composition prepared according to Comparative Example 2 are shown.

No.	ingredient	Content (% by weight)
One	Purified water	To 100
2	glycerin	10
3	antiseptic	Appropriate amount
4	corrector	Appropriate amount
5	Carbomer 1% (w/w) solution	20
6	Oil capsule	10

3 is a photograph of a cosmetic composition including a capsule which is a ready-made raw material according to Comparative Example 2.

Experimental Example 1: Evaluation of formulation appearance and moisturizing power

The cosmetic compositions of Example 1 and Comparative Examples 1 to 2 were experimented to evaluate the appearance and moisturizing power of the formulation.

Specifically, a questionnaire survey was conducted after the cosmetic composition products of Example 1 and Comparative Examples 1 to 2 were used by 20 women between their 20s and 40s for 7 days each. It was recommended to use at least twice a day, and the content of the questionnaire consisted of questions for measuring the likelihood of the appearance of the formulation and the moisturizing power. All evaluation levels were evaluated from 0 to 10 points, and the positive part (excellent appearance favorability, excellent moisturizing power) was evaluated as 10 points, and the negative part (excellent appearance favorability, dryness) was evaluated as 0 points. Is indicated. Table 4 below shows the sensory evaluation results of the cosmetic compositions of Example 1 and Comparative Examples 1-2.

Item	Example 1	Comparative Example 1	Comparative Example 2
Favorable appearance	9.5	4.8	9.0
Moisturizing power	8.9	7.2	8.4

As shown in Table 4, the cosmetic composition of Example 1 was found to be superior to the cosmetic compositions of Comparative Examples 1 and 2 in overall satisfaction with the formulation appearance and moisturizing power. In particular, the cosmetic composition of Example 1 exhibited a high degree of favorability in that it had a unique formulation appearance, and was evaluated for excellent moisturizing power.

Claims (12)

1. Preparing an aqueous phase by mixing an aqueous component including an aqueous solvent and an aqueous thickener;

   Preparing an oil phase by mixing an oily component including an oil and an oily gelling agent; And

   A method for producing a cosmetic composition comprising the step of preparing a cosmetic composition having a formulation in which the aqueous phase and the oil phase are mixed and stirred to have a discontinuous phase oil phase distributed in the continuous phase.
2. The method of claim 1, wherein the formulation is in the form of particles having an average particle diameter of 0.01 to 5 mm in which the oil phase, which is a discontinuous phase, is distributed in the aqueous phase, which is a continuous phase.
3. The method of claim 1, wherein an emulsifier for emulsifying the water phase and the oil phase is not used.
4. The method of claim 1, wherein in the step of preparing the aqueous phase, aqueous components other than the aqueous thickener are dissolved in an aqueous solvent at 60 to 70°C, and then the aqueous thickener is mixed.
5. The method according to claim 1, wherein the aqueous thickener is carbomer, acrylate/C10-30 alkyl acrylate crosspolymer, ammonium acryloyldimethyltaurate/VP copolymer, ammonium acryloyldimethyltaurate/behenes-25meta Crylate crosspolymer, hydroxyethyl acrylate/sodium acryloyldimethyltaurate copolymer, sodium polyacrylate, polyacrylate crosspolymer-6, xanthan gum, gelatin, guar gum, cassia gum, gellan gum, carob bean gum , Agar, algin, mannan, pectin, and a method for producing a cosmetic composition that is one or more selected from the group consisting of cellulose.
6. The method of claim 1, wherein the mixing temperature of the oil and the oil-based gelling agent is 60 to 110 °C.
7. The method of claim 1, wherein the oil is at least one selected from the group consisting of ester oils, hydrocarbon oils, silicone oils, vegetable oils, and triglycerides.
8. The method of claim 1, wherein the oily gelling agent is at least one selected from the group consisting of dextrin fatty acid ester, sodium stearate, and particulate silica.
9. The method of claim 1, wherein the stirring speed of the aqueous phase and the oil phase is 10 to 5000 rpm.
10. The method of claim 1, further comprising the step of cooling to 10 to 45° C. after mixing and stirring the aqueous phase and the oil phase.
11. A cosmetic composition having a formulation in which an oil phase as a discontinuous phase is distributed in an aqueous phase as a continuous phase, prepared by the method according to any one of claims 1 to 10.
12. The cosmetic composition according to claim 11, wherein the formulation is distributed in the form of particles having an average particle diameter of 0.01 to 5 mm in an oil phase as a discontinuous phase in an aqueous phase as a continuous phase.

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