KR20200096176A - A process for manufacturing a dispersed powder composition using a high-pressure homogenizer and a powder composition manufactured thereby - Google Patents

Abstract

The present invention provides a micronized, homogenized powder composition which can be included in a cosmetic composition, and the cosmetic composition with improved excellent adhesion, high coverage, long lasting, and soft feeling of use can be prepared using the same. By using a powder composition of the present invention, irregularities of a skin such as wrinkles and pores are effectively filled to enable smooth skin expression, the skin can be evenly covered without cloudiness, and skin adhesion is excellent. The manufacturing method of the cosmetic composition includes the following steps of: mixing a solvent and inorganic pigment powder (S1); dispersing the mixture of the solvent and the powder at high pressure (S2); and mixing an oil phase component, an aqueous phase component, or a mixture of the oil phase component and the aqueous phase component in the dispersion (S3).

Description

A process for manufacturing a dispersed powder composition using a high-pressure homogenizer and a powder composition manufactured thereby}

The present invention relates to a method of manufacturing a powder composition contained in a cosmetic composition and a powder composition prepared therefrom, specifically, to a manufacturing method for improving the micronization and homogenization effect of powder composition particles and a powder composition prepared through the same will be.

The makeup cosmetic composition should be gently applied when applied to the skin, and has excellent skin adhesion and cover effect, and there should be no greasyness even after a lapse of time and excellent stability to the skin. These properties are greatly influenced by the powder contained in cosmetics.

In general, a widely known emulsified or oil-dispersible makeup cosmetic composition uses various types of powders, and has various input and dispersion processes. As a method, there is a method of mixing the powder, crushing the atomizer, and then directly dispersing it by putting it in a cosmetic manufacturing facility, which has a disadvantage that a lot of powder dust is generated in the manufacturing process and color control is difficult during manufacturing, and powder particles There is a problem that the effect of micronization and homogenization is not large. As another method, there is a method of mixing the powder with a solvent and making a powder composition using equipment such as a roll mill and a bead mill, and putting it into a cosmetic manufacturing facility and dispersing it. Compared to the first method, there is an advantage that powder dust is not generated and color adjustment is possible during manufacturing. However, there is a risk in handling the manufacturing equipment when manufacturing the powder composition, and the quality of the powder composition is not uniform depending on the manufacturing conditions, so there is a disadvantage that when using cosmetics manufactured using the powder composition, agglomeration phenomenon occurs.

Korean Patent Registration 10-1634595B Korean Patent Registration 10-0473262B

In order to solve the above problems, the present invention provides a powder composition and a method of manufacturing the cosmetic composition that provides excellent skin adhesion and coverage, long-lasting, and soft feeling of use by increasing the micronization and homogenization effect of the particles.

The present invention is a method for producing a cosmetic composition comprising an inorganic pigment powder, the step of mixing the solvent and the inorganic pigment powder (S1); Dispersing the mixture of the solvent and powder prepared through the step S1 with a high pressure disperser under a pressure of 600 to 1500 bar (S2); And mixing (S3) an oil phase component, an aqueous phase component, or a mixture of an oil phase component and an aqueous phase component in the dispersion prepared through the S2 step, wherein the solvent is aqueous, oily, or aqueous and oily mixture It provides a method for producing a cosmetic composition, which is a solvent. In particular, the step (S2) of high-pressure dispersing with the high-pressure disperser is characterized in that it is repeated three or more times. In addition, the cosmetic composition of the present invention may be prepared by additionally mixing a dispersant in the step (S1) of mixing the powder and the solvent.

The present invention also provides a cosmetic composition prepared through the above method.

By applying a micronized and homogenized powder composition to a cosmetic composition, it is intended to provide a cosmetic with improved adhesion, high coverage, long-lasting, and soft feeling of use. By using a micronized and homogenized powder composition, it is possible to express smooth skin by effectively filling in irregularities in the skin such as wrinkles and pores, and to cover the skin evenly without cloudiness. In addition, since the micronized powder has a large surface area, it has a high oil absorption ability, so it adheres faster and thinner to the skin.

1 is a photograph observed with a microscope after dispersing a powder composition including particulate titanium dioxide under a pressure of 600 bar using a high pressure disperser. (a) is dispersed once with a high-pressure disperser, (b) is dispersed twice, and (c) is dispersed three times.
2 is a photograph observed with a microscope after dispersing a powder composition including particulate titanium dioxide by agitation mix.
3 is a comparative graph of particle size analysis when a powder composition including particulate titanium dioxide is stirred and mixed, dispersed using a 3-stage Roll Mill, and dispersed by pressure (300, 600, 1500 bar) using a high pressure disperser.
4 is a photograph observed with a microscope after dispersing a powder composition containing titanium dioxide under a pressure of 600 bar using a high pressure disperser. (a) is dispersed once with a high-pressure disperser, (b) is dispersed twice, and (c) is dispersed three times.
5 is a photograph observed with a microscope after dispersing a powder composition containing titanium dioxide by stirring and mixing.
6 is a comparative graph of particle size analysis when a powder composition containing titanium dioxide is stirred and mixed, dispersed using a three-stage roll mill, and dispersed by pressure (300, 600, 1500 bar) using a high pressure disperser.
7 shows the sensory test results of a makeup cosmetic composition including a powder composition prepared by different dispersion processes.
8 is a result of measuring the average melanin level before and after application of the makeup cosmetic composition of the present invention and the comparative example composition.
9 is a photograph of the skin surface before and after application of the inventive makeup cosmetic composition and the comparative example composition.

The present invention relates to a method of manufacturing a powder composition applied to a cosmetic composition and a powder composition prepared through the same, to provide excellent skin adhesion and coverage, long-lasting and soft feeling of use by increasing the micronization and homogenization effect of the powder composition particles It is characterized by.

In this specification, a solvent is a liquid used to dissolve a substance, and may be an aqueous solvent, an oil solvent, or a mixed solvent of aqueous and oil, and a liquid that can be appropriately selected and used by a person skilled in the art. Means.

In the present specification, the oil phase component means a component capable of preparing an oil phase composition by combining with an oil agent when preparing an oil-in-water cosmetic. In addition, an aqueous phase component means a component capable of preparing an aqueous phase composition by combining it with an aqueous medium such as water when preparing an oil-in-water cosmetic.

The method for preparing a powder composition of the present invention comprises the steps of mixing a powder and a solvent (S1); And after mixing of the step S1, dispersing using a high-pressure homogenizer (S2).

In the present invention, dispersion is a suspension in which a solid in the form of powder is dispersed in a liquid, and a strong energy is applied to the material to make the particle size finer and dispersed. Therefore, the step of dispersing using the high-pressure disperser (S2), the purpose of the powder to be able to pass through a system of high pressure to refine and homogenize the particles.

The dispersing step using a high-pressure disperser is characterized by proceeding under a pressure of 600 to 1500 bar. Below 600 bar, the powder refinement effect is not large, and as the pressure increases, the refinement effect increases, but when it exceeds 1500 bar, the difference is slight. The dispersing step using a high-pressure disperser is also characterized in that it is dispersed three or more times. The finer effect increases as the number of dispersion increases, but the difference is slight when dispersing more than three times.

In the present invention, the powder composition means a composition prepared by mixing a powder and a solvent and then dispersing it through a high-pressure disperser, and the solvent is for dispersing the powder, and may be an oily or water-based or mixed solvent thereof. . In addition, the powder composition of the present invention may be added a dispersant to improve the stability of the composition by preventing the agglomeration of the dispersed powder again.

In the powder composition, the powder is titanium dioxide, particulate titanium dioxide, zinc oxide, yellow iron oxide (CI 77492), red iron oxide (CI 77491), black iron oxide ( Black Iron Oxide, CI 77499), ultramarine (CI 77007), chromium oxide green (Chromium Oxide Green, CI 77288) may be one or more selected from the group consisting of inorganic pigment powders. The powder can be mixed and used by appropriately selecting whether or not it is included and the content according to the UV blocking effect, covering power, color development, etc., which are expressed when applied to the skin.

In addition, the powder is triethoxycaprylylsilane, lauroyl lysine, disodium stearoyl glutamate, isopropyltitanium triisostearate It may be coated with one or more coating materials selected from the group consisting of.

The solvent, cyclopentasiloxane, cyclohexasiloxane, dimethicone 1CS to 100CS (Dimethicone 1CS to 100CS), phenyl trimethicone (Phenyl Trimethicone), diphenylsiloxyphenyl trimethicone (Diphenylsiloxy Phenyl Trimethicone, Caprylyl Methicone, Methyl Trimethicone, Isononyl Isononanoate, Isododecane, Isohexadecane, C12-15 Alkyl Benzoate (C12-15 Alkyl Benzoate), Caprylic/Capric Triglyceride, Octyldodecanol, Butylene Glycol, Glycerin, Purified Water Water) may be one or more selected from the group consisting of.

The dispersing agent is PEG-10 Dimethicone, Cetyl PEG/Piji-10/1 Dimethicone, Lauryl PEG-9 Polydimethyl Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone, PEG-9 Polydimethylsiloxyethyl Dimethicone, Lauryl PEG-8 Dimethicone ), lauryl PEG/PPG-18/18 Methicone, PEG/PPG-19/19 Dimethicone, bis -PEG/PPG-14/14 Dimethicone, PEG/PPG-18/18 Dimethicone, PEG/PPG-18/18 Dimethicone PPG-20/20 Dimethicone, Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, Polyglyceryl-4 Isostearate ( Polyglyceryl-4 Isostearate Sorbitan Isostearate, Sorbitan Sesquioleate, Polypropylsilsesquioxane, Acrylate/ethylhexylacrylate/dimethiconemethacrylate It may be one or more selected from the group consisting of copolymers (Acrylates/Ethylhexyl Acrylate/Dimethicone Methacrylate Copolymer).

The inorganic pigment powder composition of the present invention may be included in preparing an emulsified, water-dispersible or oil-dispersible cosmetic composition by mixing with an oily component and/or an aqueous phase component, and the cosmetic composition comprising the powder composition comprises a powder and a solvent. Mixing (S1); After mixing of the step S1, dispersing using a high-pressure disperser (S2); And mixing an oil phase component, an aqueous phase component, or a mixture of the oil phase and aqueous phase components in the powder and solvent dispersed in step S2 (S3).

As an example, the cosmetic composition may include 10 to 40% by weight of the powder composition, based on the total weight of the cosmetic composition, when the cosmetic composition includes both oily and watery components, and the oily component is 10 to 40% by weight. It is preferable that the component contains 20 to 60% by weight.

The powder composition of the present invention may be included in a cosmetic composition for a specific use according to an appropriate selection by a person skilled in the art, and for example, may be included in a cosmetic composition for makeup or skin care. In addition, the cosmetic composition may additionally contain additional additives such as fragrances and preservatives, but is not limited thereto.

Hereinafter, the present invention will be described in more detail through test examples and examples. In particular, the effect of the dispersion through the use of a high-pressure dispersion machine will be focused on the drawings. However, these examples are only for illustrating the present invention, and the scope of the present invention is not construed as being limited by these examples.

This is an enlarged photograph of a powder composition dispersed by agitation mix after mixing with cyclopentasiloxane and PEG-10 dimethicone.

Comparing FIGS. 1 and 2, it can be seen that the powder composition (FIG. 1) dispersed using a high-pressure disperser has much smaller powder particles and is homogenized and dispersed.

3 is a particle size comparison analysis graph comparing particle sizes of powder compositions dispersed in different processes after mixing a powder composition containing titanium dioxide with a composition as described above. Particle size analysis was carried out by Malvern's analyzer. In FIG. 3, it was confirmed that the average and standard deviation of the powder particle size was smaller in the powder composition dispersed using a high-pressure disperser compared to the powder composition mixed with Agitation Mix and the powder composition dispersed using a 3-stage Roll Mill. I can. In particular, when the high pressure disperser is applied, it can be seen that the higher the pressure, the smaller the average particle size. Therefore, when the powder is dispersed using a high-pressure disperser, the particle size may be uniformly distributed, so that a cosmetic composition containing it can be smoothly covered when applied to the skin, and even when repeatedly applied to the skin, there is very little clumping or floating phenomenon. , It is easy to maintain quality even in mass production. In addition, as the pressure increases during high-pressure dispersion, the average particle size decreases. In particular, since the average particle size is very small at 600 bar or more, adhesion can be remarkably improved.

Test example 2. According to the dispersion process Titanium dioxide Comparison of powder composition dispersion

FIG. 4 is a microscopic enlarged photograph of a powder composition prepared by dispersing titanium dioxide, cyclopentasiloxane, and PEG-10 dimethicone under a pressure of 600 bar using a high-pressure disperser, and FIG. 5 shows titanium dioxide as a cyclopentasiloxane, blood It is an enlarged photomicrograph of a powder composition prepared by mixing with EZ-10 dimethicone and then dispersing by stirring and mixing.

4 and 5, it can be seen that the powder composition (FIG. 4) dispersed using a high-pressure disperser is much smaller and more homogenized in powder particles.

6 is a particle size comparison analysis graph comparing particle sizes of powder compositions dispersed in different processes after mixing a composition containing titanium dioxide with the above composition. Compared to the agitation-mixed powder composition and the powder composition using a three-stage roll mill, it can be confirmed that the particles of the powder composition dispersed using a high-pressure disperser are smaller, and the pressure increases when the high-pressure disperser is applied. It can be seen that the more the average and standard deviation of the particle size, the smaller.

Test example 3. Make-up containing powder compositions with different dispersion processes Cosmetic Preparation of the composition

(1) Preparation of Example 1

A makeup cosmetic composition was prepared by mixing a powder composition, an oily component, and an aqueous phase component as shown in Table 1 below.

Specifically, in the makeup cosmetic composition of Example 1, powder, solvent, and dispersant were mixed and dispersed three times using a high-pressure disperser at a pressure of 600 bar to prepare a powder composition, and then the oily components were mixed and dispersed with a homomixer. After mixing the aqueous phase components and dispersing them with a homo mixer.

Based on the total weight of the makeup cosmetic composition, the powder composition was prepared by mixing 29.5% by weight, the oily component 35.5% by weight, and the aqueous component 35% by weight. At this time, the powder composition contained 17.8% by weight of powder, 11% by weight of cyclopentasiloxane, and 0.7% by weight of PEG-10 dimethicone based on the total weight of the makeup cosmetic composition. Specifically, the powder contained in the powder composition is a mixture of particulate titanium dioxide, titanium dioxide, yellow iron oxide, red iron oxide, and black iron oxide powder.

(2) Preparation of Example 2

In the same manner as in Example 1, the powder composition of [Table 1] was prepared by dispersing three times using a high-pressure disperser, but applying a pressure of 1000 bar, mixing the oily components, dispersing it with a homo mixer, and then mixing the water phase components. It was prepared by dispersing with a homo mixer.

(3) Preparation of Comparative Example 1

After mixing and dispersing the powder, solvent, and dispersant in [Table 1] using a roll mill, the oily components are mixed and dispersed with a homo mixer, followed by mixing the aqueous components and dispersing with a homo mixer.

(4) Preparation of Comparative Example 2

Unlike Examples 1 and 2 and Comparative Example 1, the makeup cosmetic composition of Comparative Example 2 was prepared by mixing the components of Table 2 below without a dispersion process.

Test Example 4. Evaluation of the makeup cosmetic composition prepared in Test Example 3

(1) Sensory evaluation

About Example 1, Example 2, Comparative Example 1, and Comparative Example 2 prepared in Test Example 4, sensory evaluation (5-point scale method) was performed. Adhesion, thickness, coverage, durability, finish, and darkening were evaluated as very good 5 points, good 4 points, normal 3 points, bad 2 points, and very bad 1 points, and the evaluation results are shown in FIG. 7. In this evaluation, the sense of thickness refers to the sense of thickness of the formulation that is sensed when first applied to the skin, and it is evaluated close to 5 points when applied thinly and evenly. Darkening refers to a phenomenon in which darkening is oxidized in the air or combined with sweat and oil on the skin when a certain period of time elapses after makeup, and is evaluated closer to 5 points as there is no darkening phenomenon.

As a result of the sensory evaluation, the makeup cosmetic composition including the powder composition using the high-pressure disperser of Examples 1 and 2 in all items such as adhesion, thickness, coverage, lasting power, finish, and darkening was made up of Comparative Examples 1 and 2 It received higher evaluation than the cosmetic composition.

(2) Comparative evaluation of adhesion cover efficacy

The adhesion cover efficacy of Example 1 and Comparative Example 1 prepared in Test Example 3 was comparatively evaluated through Average Melanin level.

Five adults with an average age of 25.6 years were evaluated after 30 minutes of stability under the same conditions after washing. Each material was applied to both test areas including the boundary between the lower and lower lip of both sides of the tester's face and the non-wing boundary, but for the same area, Example 1 was 16 ul (80 of Comparative Example 1 application amount) %), Comparative Example 1 was applied 20 ul.

For the test site, using an Antera 3D (miravex, UK) camera, Average Melanin level was measured before each material was applied, and Average Melanin level was measured after each material was applied (Fig. 8(a)). Average Melanin level increase/decrease was calculated according to Equation 1 below using the measured values (FIG. 8(b)).

(X: Average Melanin level of the measurement area before product use,

Y: Average Melanin level of the measurement area after using the product)

In addition, photographs were taken before and after applying the makeup cosmetic composition of Example 1 and Comparative Example 1 in the same manner as above (FIG. 9).

As can be seen in Figure 8 (b), the average Melanin level increase and decrease rate of Example 1 is about -11.2%, the average Melanin level increase and decrease rate of Comparative Example 1 is about -10.8%. This means that the 16 ul applied Example 1 and the 20 ul applied Comparative Example 1 are closely covered to a similar degree or somewhat superior to reduce melanin production. In addition, as can be seen in FIG. 9, it can be confirmed that when all five testers applied Example 1, the covering power was better in the photograph. That is, it means that the makeup cosmetic composition of Example 1 of the present invention can exhibit excellent coverage even with a smaller application amount (80% compared to Comparative Example 1).

Claims (13)

As a method for producing a cosmetic composition comprising an inorganic pigment powder,
Mixing the solvent and the inorganic pigment powder (S1);
Dispersing the mixture of the solvent and powder prepared through the step S1 with a high pressure disperser under a pressure of 600 to 1500 bar (S2); And
Including the step (S3) of mixing the dispersion prepared through the step S2, an oil phase component, an aqueous phase component, or a mixture of an oil phase component and an aqueous phase component,
The solvent is an aqueous, oily, or aqueous and oily mixed solvent, a method for producing a cosmetic composition.
The method of claim 1,
The step of high-pressure dispersing with the high-pressure disperser (S2) is repeated three or more times, a method for producing a cosmetic composition.
The method of claim 1,
The inorganic pigment powder is titanium dioxide, particulate titanium dioxide, zinc oxide, yellow iron oxide, red iron oxide, black iron oxide, ultramarine (Ultramarine), chromium oxide green (Chromium Oxide Green) is one or more selected from the group consisting of, a method for producing a cosmetic composition.
The method of claim 1,
The solvents include Cyclopentasiloxane, Cyclohexasiloxane, Dimethicone 1CS-100CS, Phenyl Trimethicone, Diphenylsiloxy Phenyl Trimethicone), Caprylyl Methicone, Methyl Trimethicone, Isononyl Isononanoate, Isododecane, Isohexadecane, C12-15 alkyl Benzoate (C12-15 Alkyl Benzoate), Caprylic/Capric Triglyceride, Octyldodecanol, Butylene Glycol, Glycerin, Purified Water Water) is one or more selected from the group consisting of, a method for producing a cosmetic composition.
The method according to claim 1 or 2,
The step (S1) of mixing the solvent and the powder includes additionally mixing a dispersant with the solvent and the inorganic pigment powder.
The method of claim 5,
The dispersing agent is PEG-10 Dimethicone, Cetyl PEG/PPG-10/1 Dimethicone, Lauryl PEG-9 Polydimethicone Siloxyethyldimethicone (Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone), PEG-9 Polydimethylsiloxyethyl Dimethicone, Lauryl PEG-8 Dimethicone ), Lauryl PEG/PPG-18/18 Methicone, PEG/PPG-19/19 Dimethicone (PEG/PPG-19/19 Dimethicone), Bis -PEG/PPG-14/14 Dimethicone, PEG/PPG-18/18 Dimethicone (PEG/PPG-18/18 Dimethicone), PEG/ PPG-20/20 Dimethicone (PEG/PPG-20/20 Dimethicone), Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, Polyglyceryl-4 isostearate ( Polyglyceryl-4 Isostearate) Sorbitan Isostearate, Sorbitan Sesquioleate, Polypropylsilsesquioxane, Acrylate/Ethylhexylacrylate/Dimethicone Methacrylate Copolymer (Acrylates/Ethylhexyl Acrylate/Dimethicone Methacrylate Copolymer) is at least one selected from the group consisting of, a method for producing a cosmetic composition.
A mixture of a solvent and inorganic pigment powder; And as a cosmetic composition comprising an oily component, an aqueous component, or an oily component and an aqueous component,
The solvent is an aqueous, oily, or aqueous and oily mixed solvent,
The mixture of the solvent and inorganic pigment powder is dispersed under high pressure with a high pressure disperser under a pressure of 600 to 1500 bar, cosmetic composition.
The method of claim 7,
The mixture of the solvent and powder is dispersed with a high pressure disperser three or more times, the cosmetic composition.
The method of claim 7,
The powder is titanium dioxide, particulate titanium dioxide, zinc oxide, yellow iron oxide, red iron oxide, black iron oxide, ultramarine ), chromium oxide green (Chromium Oxide Green) is one or more selected from the group consisting of, a cosmetic composition.
The method of claim 7,
The solvents include Cyclopentasiloxane, Cyclohexasiloxane, Dimethicone 1CS-100CS, Phenyl Trimethicone, Diphenylsiloxy Phenyl Trimethicone), Caprylyl Methicone, Methyl Trimethicone, Isononyl Isononanoate, Isododecane, Isohexadecane, C12-15 alkyl Benzoate (C12-15 Alkyl Benzoate), Caprylic/Capric Triglyceride, Octyldodecanol, Butylene Glycol, Glycerin, Purified Water Water) is one or more selected from the group consisting of, a cosmetic composition.
The method of claim 7 or 8,
The mixture of the solvent and the powder is that the dispersant is additionally mixed, the cosmetic composition.
The method of claim 11,
The dispersing agent is PEG-10 Dimethicone, Cetyl PEG/PPG-10/1 Dimethicone, Lauryl PEG-9 Polydimethicone Siloxyethyldimethicone (Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone), PEG-9 Polydimethylsiloxyethyl Dimethicone, Lauryl PEG-8 Dimethicone ), Lauryl PEG/PPG-18/18 Methicone, PEG/PPG-19/19 Dimethicone (PEG/PPG-19/19 Dimethicone), Bis -PEG/PPG-14/14 Dimethicone, PEG/PPG-18/18 Dimethicone (PEG/PPG-18/18 Dimethicone), PEG/ PPG-20/20 Dimethicone (PEG/PPG-20/20 Dimethicone), Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, Polyglyceryl-4 isostearate ( Polyglyceryl-4 Isostearate) Sorbitan Isostearate, Sorbitan Sesquioleate, Polypropylsilsesquioxane, Acrylate/Ethylhexylacrylate/Dimethicone Methacrylate Copolymer (Acrylates/Ethylhexyl Acrylate/Dimethicone Methacrylate Copolymer) is at least one selected from the group consisting of, a cosmetic composition.
The method of claim 7,
The makeup cosmetic composition is an emulsion type, oil dispersion type, or water dispersion type cosmetic composition.

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