KR101454730B1 - Powder type material for cosmetic composition and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a cosmetic composition which is coated with a specific silicone oil to powder used in the production of cosmetics to provide high reflectance even after being moistened with sebum, The present invention relates to a coating powder for cosmetics and a process for producing the same, which comprises 80 to 98% by weight of a powder, 1 to 10% by weight of diphenylsiloxy phenyl trimethicone as a first silicone oil coated on the powder, And a mixture of 1 to 10% by weight of triethoxysilylethyl polydimethylsiloxyethyl hexyl dimethicone as a second silicone oil coated on the powder.

Description

TECHNICAL FIELD The present invention relates to a coating powder for cosmetics,

The present invention relates to a coating powder for cosmetics and a method for producing the same, and more particularly to a powder coating for cosmetics which is coated with a specific silicone oil to provide a high refractive index, particularly a high reflectance even after being moistened with sebum, And preventing deposition of a coloring matter, and a process for producing the same.

The role of powder in the design of cosmetic products is very important in determining the functionality and usability of the product. It is generally known that the surface of the powder is surface-treated with oil, especially silicone oil, to improve the properties of the powder in order to improve the quality of the product and provide stability in accordance with the object of such powder design.

In general, powders of cosmetics such as powder and foundation have hydrophilic properties, while skin has lipophilic properties that are easily cleansed by sweat or water. In order to improve water repellency and persistence, silicone oil is coated on the powders of cosmetics .

Methicone as a surface modifier of a generally used powder, particularly an inorganic powder, is essential for the reaction of a silane group (Si-H), which inevitably leads to the generation of hydrogen gas. Therefore, careful selection of a silicone-based oil as a surface modifier for the inorganic powder used in the production of cosmetics has been demanded.

The present invention has been made in order to solve the problems of the prior art as described above, and it is an object of the present invention to provide a silicone oil as a surface modifier which can provide a high refractive index, especially a high reflectance even after being moistened with sebum, And to provide a method for producing the same.

The present invention also provides a coating powder for cosmetics and a method for producing the same, which can prevent the generation of hydrogen gas as a reaction product during the coating operation by selecting a silicone oil as a surface modifier, thereby enhancing the stability of the product during the manufacturing process The purpose is to do.

The present invention also provides a cosmetic composition comprising a powder obtained by coating a silicone oil by the selection of a silicone oil as a surface modifying agent, and in particular, it is excellent in dispersibility and flowability in a makeup formulation, The present invention also provides a coating powder for cosmetics which can provide a feeling of soft and silky feel and a method of manufacturing the same.

The coating powder for cosmetics according to the present invention comprises 80 to 98% by weight of powder, 1 to 10% by weight of diphenylsiloxy phenyl trimethicone as a first silicone oil coated on the powder, And a mixture of 1 to 10% by weight of triethoxysilylethyl polydimethylsiloxyethyl hexyl dimethicone as a second silicone oil coated on the substrate.

The powder may be a powder having a particle shape of any one of a plate shape, a spherical shape, a needle shape, a columnar shape, and an amorphous shape.

The powders may be in the form of talc, mica, sericite, boron nitride, barium sulphate, plate alumina, titanium dioxide / mica two phase powder (60 to 20 wt% titanium dioxide on the surface of mica in the range of 40 to 80 wt% Coated two phase powder, a pearl), polymethyl methacrylate (PMMA), silica, nylon, titanium dioxide, iron oxide, dimethicone / vinyl dimethicone cross polymer, vinyl dimethicone / Methicone silsesquioxane crosslinked polymer, polymethylsilsesquioxane And mixtures of two or more thereof.

The coating powder for cosmetics may further comprise a third silicone oil in addition to the first silicone oil and the second silicone oil.

Wherein the third silicone oil is selected from the group consisting of methicone, dimethicone, hydrogendimethicone, triethoxycaprylylsilane, dimethylsilicone, acrylic silicone, cetyl dimethicone copolymer, aminopropyldimethicone, magnesium myristate, , Sodium myristate, calcium myristate, magnesium stearate, aluminum stearate, sodium stearate, calcium stearate, amino modified silicone, alkyl benzoates having 12 to 15 carbon atoms, mineral oil, acrylate / tridecyl acrylate / tri Methacrylate / dimethicone methacrylate copolymer (Acrylates / Tridecyl Acrylate / Triethoxysilylpropyl Methacrylate / Dimethicone Methacrylate Copolymer, name of International Cosmetics Standard (INCI), acrylate), dimethyltriethoxysilane, N- N-Lauroyl L-Lysine, sodium lauroyl glutamate, Of the load and these may be selected from the group consisting of a mixture of two or more.

The method for preparing a coating powder for cosmetics according to the present invention comprises the steps of: (1) mixing 80 to 98% by weight of powder with 1 to 10 parts by weight of diphenylsiloxy phenyl trimethicone as a first silicone oil coated on the powder, And 1 to 10% by weight of triethoxysilylethyl polydimethylsiloxyethyl hexyl dimethicone as a second silicone oil to be coated on the powder, Mixing for 5 minutes to obtain a powder-silicone oil mixture; (2) drying the powdery-silicone oil mixture obtained in the mixing step at 100 ° C to 160 ° C for 120 to 420 minutes; And (3) a pulverizing step of pulverizing the dried product obtained in the drying step.

Stirring may be performed in which only the uncoated powder used in the mixing step is stirred at 200 to 900 rpm for 1 to 5 minutes before the mixing step.

In the mixing step, the third silicone oil may be further mixed with the first silicone oil and the second silicone oil.

According to the present invention, the powder used for producing cosmetics is coated with a specific silicone oil to provide a high refractive index, in particular, a high reflectance even after being moistened with sebum, at the same time, it is possible to improve the sustainability of cosmetics, The present invention provides a coating powder for cosmetics and a process for producing the same.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a graph showing refractive indexes of coated powder for cosmetics obtained according to an embodiment of the present invention and coating powder for cosmetics as a comparative example according to wavelengths before fatigue fixation. FIG.
FIG. 2 is a graph showing the refractive indexes of the coating powders for cosmetics obtained according to the embodiment of the present invention and the coating powders for cosmetics as comparative examples according to the wavelength after the filament wetting.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The coating powder for cosmetics according to the present invention comprises 80 to 98% by weight of powder, 1 to 10% by weight of diphenylsiloxy phenyl trimethicone as a first silicone oil coated on the powder, And a mixture of 1 to 10% by weight of triethoxysilylethylpolydimethylsiloxyethyl hexyl dimethicone as a second silicone oil coated on the substrate.

That is, in the present invention, careful study has been conducted on the silicone oil coated on the powder, and as a result, by selecting a suitable silicone oil and coating it on the powder, it is possible to provide a high refractive index, It is possible to obtain a coating powder for cosmetics which can improve the durability and prevent the pigment from being deposited, and has completed the present invention.

The powder may be a powder having a particle shape of any one of a plate shape, a spherical shape, a needle shape, a columnar shape, and an amorphous shape. The powder is preferably selected from the group consisting of talc, mica, sericite, boron nitride, barium sulfate, platy alumina, pearl, polymethylmethacrylate (PMMA), silica, nylon, titanium dioxide, iron oxide, silicon dioxide, Amorphous powders, and mixtures of two or more thereof.

Diphenylsiloxy phenyl trimethicone as the first silicone oil is a silicone oil having the structure shown in the following Chemical Formula 1 and commercially available as KF 56A from Shinetsu, Can be used.

The diphenylsiloxy phenyltrimethicone as the first silicone oil is coated on the powder to function to obtain a powder having a high refractive index. The diphenylsiloxyphenyltrimethicone has a function of providing excellent merits of skin adhesion, excellent dispersibility, and excellent stability of formulation due to the absence of residual gas during coating when used in powder form. do. When the diphenylsiloxy phenyltrimethicone is used in an amount of less than 1% by weight, the refractive index of the coated powder may not be sufficiently increased, and there may be a problem that skin adhesion, dispersibility, and formulation stability are insufficient. On the other hand, When the amount is more than 10% by weight, the powder is mixed with an excessive amount of diphenylsiloxy phenyltrimethicone, so that it is unlikely to cause aggregation, spreadability upon application of the skin, and natural flowability upon dispersion of the powder. There may be a problem.

Triethoxysilylethyl polydimethylsiloxyethyl hexyl dimethicone as the second silicone oil is a silicone oil having a structure represented by the following formula (2), which is also available from Shin-Etsu of Japan under the trade name KF 9909 It can be purchased and used commercially.

As the second silicone oil, triethoxysilylethylpolydimethylsiloxyethyl hexyl dimethicone is particularly preferable when it is coated on the surface of a powder having hydroxyl on its surface as a powder, particularly when it is coated with powder, As a reaction product to be formed upon coating with a common silicone oil, a function of improving the stability of a product obtained by forming a coating film of silicone oil on the powder surface while generating ethanol (EtOH) instead of generating hydrogen gas.

When the triethoxysilylethylpolydimethylsiloxyethyl hexyl dimethicone is used in an amount of less than 1% by weight, it is difficult to feel a difference from a usual coating product in terms of feeling in use due to a small coating amount of the compounded product, and hydrophobicity and water repellency are lowered, If it exceeds 10% by weight, on the other hand, it is impossible to expect the coagulation phenomenon of the powder, the spreadability upon application of the skin and the natural flowability upon dispersion of the powder, the chemical structure of completely different components upon coating can be changed, The oil may be adsorbed to the equipment, resulting in a loss of productivity.

The coating powder for cosmetics may further comprise a third silicone oil in addition to the first silicone oil and the second silicone oil. Wherein the third silicone oil is selected from the group consisting of methicone, dimethicone, hydrogendimethicone, triethoxycaprylylsilane, dimethylsilicone, acrylic silicone, cetyl dimethicone copolymer, aminopropyldimethicone, magnesium myristate, , Sodium myristate, calcium myristate, magnesium stearate, aluminum stearate, sodium stearate, calcium stearate, amino modified silicone, alkyl benzoates having 12 to 15 carbon atoms, mineral oil, acrylate / tridecyl acrylate / tri Methacrylate / dimethicone methacrylate copolymer (Acrylates / Tridecyl Acrylate / Triethoxysilylpropyl Methacrylate / Dimethicone Methacrylate Copolymer, name of International Cosmetics Standard (INCI), acrylate), dimethyltriethoxysilane, N- N-Lauroyl L-Lysine, sodium lauroyl glutamate, Of the load and these may be selected from the group consisting of a mixture of two or more.

Also, a method for producing a coating powder for cosmetics according to the present invention comprises the steps of: (1) mixing 80 to 98% by weight of powder with 1 to 100 parts by weight of diphenylsiloxy phenyl trimethicone as a first silicone oil coated on the powder, And 1 to 10% by weight of triethoxysilylethyl polydimethylsiloxyethyl hexyl dimethicone as a second silicone oil to be coated on the powder, To 5 minutes to obtain a powder-silicone oil mixture; (2) drying the powder-silicone oil mixture obtained in the mixing step at 100 to 160 for 1 to 5 minutes; And (3) a pulverizing step of pulverizing the dried product obtained in the drying step.

In the mixing step (1), 1 to 10% by weight of diphenylsiloxy phenyl trimethicone is added to 80 to 98% by weight of the powder as a first silicone oil coated on the powder, 1 to 10% by weight of triethoxysilylethyl polydimethylsiloxyethyl hexyl dimethicone as a second silicone oil is added and mixed at 200 to 900 rpm for 1 to 5 minutes to obtain a powder-silicone oil To obtain a mixture. The mixing can be performed by stirring the mixture at a speed of 200 to 900 rpm for 1 to 5 minutes using a super mixer (available from JE POWDER Co., Ltd., Japan, available under the trade name JE-SM150). If the speed and the time are out of the range, the efficiency (productivity) due to unreasonable use is reduced due to heat generated in the equipment, and the brightness and saturation of the powder (white powder and coloring powder) There may be a problem.

The drying step (2) is performed by drying the powder-silicone oil mixture obtained in the mixing step at 100 ° C to 160 ° C for 120 to 420 minutes. If the drying temperature is lower than 100 ° C, there is a possibility that an isopropyl alcohol component as a solvent is present, which may cause a problem in that the powder coating rate of the silicone oil is lowered. On the other hand, when the temperature exceeds 160 ° C, The reaction temperature starts from 105 ° C. Therefore, when the drying process is completed, there is a low possibility that the silicone oil remains in the powder, which may result in a decrease in the coating rate. If the speed and the time are out of the range, the efficiency (productivity) due to unreasonable use is reduced due to heat generated in the equipment, and the brightness and saturation of the powder (white powder and coloring powder) There may be a problem.

The pulverizing step (3) comprises pulverizing the dried product obtained in the drying step. The reason for the crushing in the crushing step is that after the silicon coating, the crushing process is necessary in order to prevent the foreign materials in the powder and the case of the aggregation of the fine powder when the drying process is finished, and the crushing process is performed to obtain uniform particles. (For example, an average particle diameter of 0.2 to 0.5 or less in the case of the particles of titanium dioxide fine particles), but if it is out of the range of the average particle diameter of the powder, the use texture, which is a coating property of the coated powder, Shape, and size of particles can not be confirmed. It will be understood by those skilled in the art that the average particle diameter of the powder obtained by the pulverization in the pulverizing step may be adjusted so as to be 0.05 to 50 but it may be adjusted depending on the use of the powder in the final desired cosmetic product .

Stirring may be performed in which only the uncoated powder used in the mixing step is stirred at 200 to 900 rpm for 1 to 5 minutes before the mixing step. The stirring in the stirring step is carried out by using a conventional Henschel mixer at a rotating speed of 200 to 900 rpm for 1 to 5 minutes to appropriately disperse the powder so that coating with silicone oil in a subsequent mixing step is performed smoothly can do.

In the mixing step, the third silicone oil may be further mixed with the first silicone oil and the second silicone oil. The third silicone oil is the same as or similar to the above-mentioned description, and repeated explanation will be avoided.

Hereinafter, preferred embodiments and comparative examples of the present invention will be described.

The following examples are intended to illustrate the invention and should not be construed as limiting the scope of the invention.

Example  One

3 g of diphenylsiloxy phenyltrimethicone as a first silicone oil and 96 g of triethoxysilylethylpolydimethylsiloxyethyl hexyldimethyl ether as a second silicone oil were added to 96 g of iron oxide which had been previously stirred for 3 minutes at a speed of 600 rpm with a Henschel mixer as a powder, 1 g of chicone was added and mixed at a speed of 800 rpm using a super mixer (available from JE POWDER, JE POWDER Co., Ltd., South Korea) at a speed of 800 rpm, followed by drying at a temperature of 120 캜 for 300 minutes Then, the obtained product was pulverized to have an average particle diameter of 0.2 to obtain a coating powder for cosmetics according to the present invention.

Comparative Example  One

Comparative Example 1 used untreated iron oxide before coating with silicone oil in Example 1 as a control.

Comparative Example  2

Example 1 was repeated except that instead of the first silicone oil and the second silicone oil, methicone was used in an amount equal to the total amount of the first silicone oil and the second silicone oil.

Comparative Example  3

Example 1 was repeated except that dimethicone was used in an amount equal to the total amount of the first silicone oil and the second silicone oil instead of the first silicone oil and the second silicone oil.

Comparative Example  4

The procedure of Example 1 was repeated, except that dimethyltriethoxysilane was used in place of the first silicone oil and the second silicone oil in an amount equal to the total amount of the first silicone oil and the second silicone oil.

Comparative Example  5

Example 1 was repeated except that triethoxycaprylylsilane was used in place of the first silicone oil and the second silicone oil in an amount equivalent to the total amount of the first silicone oil and the second silicone oil.

Experimental Example

The coated powders obtained in Example 1 and Comparative Examples 1 to 5 were dispersed in a wavelength range of 400 to 800 using a spectrophotometer (UV / VIS spectrophotometer; Jasco; product name: V-650) (The weight of the artificial sebum component was 5 g per 100 g of the powder) was measured. The results are shown in Fig. 1 (prior to artificial sebum component sucking) and Fig. 2 After the wetting of sebum).

As shown in FIG. 1 and FIG. 2, in the case of the powder according to Example 1 of the present invention, it was confirmed that the reflectance before and after artificial sebum wetting was high, and it was confirmed that prevention of pigmentation by sebum and persistence of makeup I could.

In Comparative Example 1 as an uncoated control, the reflectance was higher than those of the other powders before the artificial sebum wetting, but the reflectance after the artificial sebum wetting was lowered, and it was confirmed that the effect of sebum was large.

(Comparative Example 3), Powder coated with alkylsilane (Comparative Example 5), Powder coated with dimethyltriethoxysilane (Comparative Example 4), Powder coated with methicone (Comparative Example 2 ), The difference in reflectance depending on the sebum component was observed.

Thus, in accordance with the present invention there is provided a silicone oil composition comprising, as a first silicone oil, diphenylsiloxy phenyl trimethicone and a second silicone oil, triethoxysilylethyl polydimethylsiloxyethyl hexyl dimethicone, It was confirmed that Example 1 exhibits a high refractive index due to the surface adsorption and siloxane bonding of the powder and has an effect of controlling persistence of sebum and preventing deposition of pigment.

Accordingly, the coating powder for cosmetics according to the present invention can be applied to powder facts, bibby creams, and the like as pigment bases.

Example  2

The prescription of BB cream as shown in the following Table 1 was prepared according to the following production method, and the change of the actual feeling due to the formulation of the bibby cream and the comparative example of the pigment base material coated with dimethicone as a general silicone coating agent (Comparative Example 6) and the pigment base obtained according to Example 1 (Example 2) was used for a predetermined period of time to determine whether the user could distinguish the cream, Respectively.

Prize Ingredients Example 2 Comparative Example 6 A Tocopherol acetate 0.10 0.10 Body or mate 1.50 1.50 Dimethicone 8.00 8.00 Cyclopentasiloxane 20.00 20.00 Hexyl laurate 3.00 3.00 Acrylate / tridecyl acrylate / triethoxysilylpropyl methacrylate / dimethicone methacrylate copolymer 1.00 1.00 Phage dimethicone
(PEG dimethicone) 3.00 3.00 B Incrementer 1.30 1.30 Cationic surfactants (distearyliodonium chloride) 0.20 0.20 C Preservatives (propylparaben) 0.10 0.10 Palmitic acid 0.20 0.20 D The powder of Example 1 12.00 - The powder of Comparative Example 6 - 12.00 E water 38.60 38.60 Preservative (methyl paraben) 0.20 0.20 Snail extract 3.00 3.00 Magnesium sulfate 0.70 0.70 glycerin 2.00 2.00 Butylene glycol 5.00 5.00 F incense 0.10 0.10

The preparation method of BB cream was carried out as follows.

Step 1. The raw materials A and B were uniformly mixed and dispersed.

Step 2. The raw material C phase and the D phase were uniformly mixed, heated, and maintained at 80 ° C.

Step 3. The E phase was homogeneously mixed, warmed and maintained at 80 ° C.

Step 4. After mixing the mixture obtained in Step 1 and the mixture obtained in Step 2 uniformly, the mixture obtained in Step 3 was divided into three portions to emulsify.

Step 5. The F phase was added to the mixture obtained in Step 4, mixed, and then naturally cooled to room temperature.

In order to compare the actual use effects of the bibby creams of Comparative Example 6 and Example 2, a panel consisting of eight women in their twenties to forty generations should be compared with each other for three weeks, so that naturalness, aggregation, The results are shown in Table 2 below. The results are shown in Table 2. The results are shown in Table 2 below.

division Naturalness Lump
phenomenon Coloring tea
Occur Pigment
composure vitality Brittle Average Example 2 4.4 4.5 4.8 4.7 4.7 4.5 4.6 Comparative Example 6 3.9 4.1 3.8 4.1 4.1 4.2 4.03 score ; 1 very bad, 2 bad, 3 medium, 4 good, 5 very good

As shown in Table 2, when compared to the bibby cream of Comparative Example 6 containing the coated powder coated with the general coating agent, the bibby cream of Example 2 including the coated powder according to the present invention, It was found that the persistence of makeup was remarkably excellent because no pigmentation occurred after absorption, and the user was highly satisfied with naturalness and lumpiness. Further, it was confirmed that, when the dye pigment was used as a powder after the completion of the formulation with the bibby cream, coloring matter due to the dye base as a coating powder was not generated, and the dispersibility and flowability of the dye were improved.

That is, the inorganic powder coated with the silicone oil obtained according to the present invention is excellent in the coating of the silicone oil coated on the inorganic powder and has strong hydrophobicity and excellent water repellency and does not generate hydrogen gas as a reaction product in the coating operation It does not affect the stability of the product and changes with the lapse of time and has excellent affinity with the oil component constituting the cosmetic product, especially the silicone oil component, so that the dispersibility is good when the cosmetic product is formulated and the cosmetic product containing such an inorganic powder is soft The feeling of use of the cosmetic product is improved, and the adhesion is excellent, and the product can be provided with high continuity.

The present invention can be used in the field of business for manufacturing raw materials for cosmetics and finished products for cosmetics.

While the invention has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims.

(Without reference numerals)

Claims (8)

A first silicone oil coated with 1 to 10% by weight of diphenylsiloxy phenyl trimethicone, and a second silicone oil coated on the powder, And 1 to 10% by weight of ethoxysilylethylpolydimethylsiloxyethyl hexyl dimethicone (triethoxysilylethyl polydimethylsiloxyethyl hexyl dimethicone). The method according to claim 1,
Wherein the powder is a powder having a particle shape of any one of a plate-like shape, a spherical shape, an acicular shape, a columnar shape, and an amorphous shape. The method according to claim 1,
Wherein the powder is selected from the group consisting of talc, mica, sericite, boron nitride, barium sulfate, platy alumina, titanium dioxide / mica two phase powder (60 to 20 wt% titanium dioxide on the surface of mica within the range of 40 to 80 wt% Coated two phase powder, a pearl), polymethyl methacrylate (PMMA), silica, nylon, titanium dioxide, iron oxide, dimethicone / vinyl dimethicone cross polymer, vinyl dimethicone / Methicone silsesquioxane crosslinked polymer, polymethylsilsesquioxane and And a mixture of two or more thereof. The method according to claim 1,
Wherein the coating powder for cosmetics further comprises a third silicone oil in addition to the first silicone oil and the second silicone oil. 5. The method of claim 4,
Wherein the third silicone oil is selected from the group consisting of methicone, dimethicone, hydrogendimethicone, triethoxycaprylylsilane, dimethylsilicone, acrylic silicone, cetyl dimethicone copolymer, aminopropyldimethicone, magnesium myristate, , Sodium myristate, calcium myristate, magnesium stearate, aluminum stearate, sodium stearate, calcium stearate, amino modified silicone, alkyl benzoates having 12 to 15 carbon atoms, mineral oil, acrylate / tridecyl acrylate / tri Methacrylate / dimethicone methacrylate copolymer (Acrylates / Tridecyl Acrylate / Triethoxysilylpropyl Methacrylate / Dimethicone Methacrylate Copolymer, name of International Cosmetics Standard (INCI), acrylate), dimethyltriethoxysilane, N- N-Lauroyl L-Lysine, sodium lauroyl glutamate, Cosmetic powder coating according to claim that is selected from the group consisting of de and a mixture of two or more of them. (1) 80 to 98% by weight of powder comprises 1 to 10% by weight of diphenylsiloxy phenyl trimethicone as a first silicone oil coated on the powder and a second silicone oil A mixture obtained by adding 1 to 10% by weight of triethoxysilylethyl polydimethylsiloxyethyl hexyl dimethicone as a solvent and mixing at 200 to 900 rpm for 1 to 5 minutes to obtain a powder-silicone oil mixture step;
(2) drying the powdery-silicone oil mixture obtained in the mixing step at 100 ° C to 160 ° C for 120 to 420 minutes; And
(3) a pulverizing step of pulverizing the dried product obtained in the drying step;
The method of claim 1, wherein the coating powder is a cosmetic powder. The method according to claim 6,
Wherein the stirring step of stirring only the uncoated powder used in the mixing step prior to the mixing step at 200 to 900 rpm for 1 to 5 minutes is further performed. The method according to claim 6,
Wherein the third silicone oil is further mixed with the first silicone oil and the second silicone oil in the mixing step.

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