KR100405870B1 - Oil-free and surfactant-free oil-powder disperse system and method for stabilizing thereof - Google Patents

Abstract

The present invention relates to a non-aqueous oil-powder dispersion system containing no water and a surfactant and a stabilizing method thereof.

5-30% by weight of volatile oils or volatile silicone oils having 12 to 20 carbon atoms, 0.5-20% by weight of nonvolatile oils, and 0.5-10% by weight of inorganic thickeners are mixed and heated to dissolve the inorganic thickeners described above. There is provided a non-aqueous and non-surfactant type oil-powder dispersion system as a color cosmetic and comprising a method of stabilizing the mixture comprising adding 1 to 50% by weight of an organic powder and / or an inorganic powder to a dissolved mixture,

This non-aqueous and non-surfactant type oil-powder dispersion system is excellent in water resistance and durability, and has good adhesion, spreadability and non-stickiness on the skin.

Description

OIL-FREE AND SURFACTANT-FREE OIL-POWDER DISPERSE SYSTEM AND METHOD FOR STABILIZING THEREOF}

The present invention relates to a non-aqueous and non-surfactant type oil-powder dispersion system and a stabilization method thereof, and more particularly, to a volatile oil, a non-volatile oil, an oil phase increase without containing water and a surfactant. It is composed of organic, organic and / or inorganic powders, and has a good spreadability and skin adhesion as compared to conventional emulsion type products or stick or cake products, as well as a large amount of color cosmetics with long lasting moisturizing properties and long lasting makeup. An oil-powder dispersion system containing powder and a stabilization method thereof.

As a conventional method for stabilizing powder in the oil phase, a powder is prepared by using a wax in the oil phase, which is generally a traumatic agent, to increase the hardness to prepare a stick, and the use of an extra surfactant other than that required for emulsification. A method of stabilizing through uniform dispersion has been used. To thicken the oil, a gelling agent that gels oil such as wax, a useful polymer such as a fatty acid derivative of dextrin, an organic modified clay mineral, or a surfactant having excellent powder dispersing power was used (Japanese Patent Application No. 61-129033, Japanese Patent Application No. 61). -212321).

However, when an excessive amount of such a gelling agent or surfactant is used in an emulsion having water and oil as an internal / trauma, usability such as stickiness or oily residue that is poor in spreadability and unpleasant to use can be maintained while maintaining sufficient stability. There were serious shortcomings in terms of aspects.

In addition, when the amount of powder in the conventional emulsion type or cake or stick color cosmetics is increased in a large amount, it indicates a stiffness in terms of the use, a makeup sustainability on the skin and dryness of the skin, and separation of oil in terms of stability of the product. There was a problem in that there are bound to serious limitations in stability, such as phase separation due to phenomena or the breakdown of the emulsion structure over time.

The present invention aims to solve all the problems of the conventional oil-powder dispersion system and the method described above.

Accordingly, the first object of the present invention is to provide an oil-powder dispersion system as a cosmetic having excellent stability and water resistance without separation of oil-powder according to temperature and change over time, good spreadability and usability on the skin, and excellent makeup persistence. It is to.

A second object of the present invention is to provide a method for stabilizing an oil-powder dispersion system according to the first object of the present invention described above.

According to one preferred aspect for achieving the first object of the present invention, 5 to 30% by weight of volatile oil or volatile silicone oil of 12 to 20 carbon atoms, 0.5 to 20% by weight of nonvolatile oil, A non-aqueous and non-surfactant type oil-powder dispersion system composed of 0.5 to 10 wt% of inorganic thickener and 1 to 50 wt% of organic and / or inorganic powder is provided.

According to one preferred aspect for achieving the second object of the present invention, 5 to 30% by weight of volatile oil or volatile silicone oil of 12 to 20 carbon atoms, 0.5 to 20% by weight of nonvolatile oil, and 0.5 to inorganic thickener Non-aqueous as color cosmetics consisting of mixing and heating 10% by weight to dissolve the above-mentioned inorganic thickener, and then adding and mixing 1-50% by weight of organic and / or inorganic powder to the dissolved mixture, and A method for stabilizing a nonsurfactant type oil-powder dispersion system is provided.

The present invention stabilizes oil by using inorganic thickener and inorganic powder such as silica having excellent oil absorption property in volatile oil, so that the cream or gel type of non-aqueous and non-interface having excellent stability, safety and usability. An active oil-powder dispersion system is provided, and this oil-powder dispersion system can be effectively applied to color cosmetics.

The present invention specifically includes volatile oils having 10 to 20 carbon atoms or volatile silicone oils such as cyclomethicone and dimethicone, nonvolatile oils, inorganic thickeners, organic and inorganic powders, without containing water and surfactants. The present invention relates to an oil-powder dispersion system as a color cosmetic, and a stabilization method thereof.

As the volatile oil that can be used in the oil-powder dispersion system as the color cosmetic according to the present invention, at least one selected from hydrocarbon-based oils such as paraffin and isoparaffin and volatile silicone oils can be mentioned.

Specific examples of such volatile oils include isododecane, C _7-8 isoparaffin, C _8-9 isoparaffin, C _10-11 isoparaffin, C _11-12 isoparaffin, C _11-13 isoparaffin, C _{12- 20} isoparaffin, C _13-14 isoparaffin, cyclomethicone, cyclotetrasiloxane, cyclopentasiloxane may be mentioned one or any combination thereof, which may range from 5 to 30% by weight, preferably Is used in the range of 10 to 25% by weight. If the amount is less than 5% by weight, the volatilization is too low, and when used in excess of 30% by weight has a light feeling of use, but due to the fast drying speed is too matte disadvantage.

Non-volatile oils include isononyl isonononate, ethylhexyl isonononate, polyisobutene, lanolin oil, squalane, liquid paraffin, caprylic / capric triglylide, butylene glycol dicaprylate, hexyllau At least one selected from the group consisting of late, isocetyl myristate, isopropyl myristate, and isopropyl palmitate can be used, and it is used in the range of 0.5 to 20% by weight.

Oil thickeners include at least one selected from quaternium-18 bentonite, quaternium-18 hectorite, aluminum starch octenylsuccinate, calcium carbonate, magnesium stearate, zinc stearate or silicic acid with surface lipophilic or hydrophilic anhydride Species can be used and are used in the range of 0.5 to 10% by weight. If the thickener content is less than 0.5% by weight, the oil does not gel well, and if it exceeds 10% by weight, sufficient stability can be maintained, but the viscosity becomes too high, so there is a disadvantage in spreading and feeling of use, so 0.5 to 10% by weight range It is preferable to make it contain.

As the powder, any powder can be used regardless of its shape (sphere, needle, plate), particle diameter (fine particles, pigment, etc.), and particle structure (porous chamber, nonporous, etc.).

Examples of the organic powder include polymethyl methacrylate, nylon, cellulose, polyethylene, silk powder and the like. On the other hand, examples of the inorganic powder include titanium oxide, zinc oxide, iron oxide (yellow, red, black, and the like), talc, mica, porous silica, silica dimethyl silates, sericite, kaolin, and the like. In addition, it is also possible to use a powder obtained by complexing such powders or surface treatment with oil, silicone, fluorine or the like.

The amount of the powder may vary depending on the formulation, and is usually used in the range of 2 to 50% by weight. If it is less than 2% by weight may not appear the effect of the cosmetic make-up, if it exceeds 50% by weight it is not preferable because there is a disadvantage that the viscosity is too high to disperse in the oil phase.

The preferable addition amount of organic powder is 1-20 weight%, and the preferable addition amount of an inorganic powder is 1-30 weight%. These organic powders and inorganic powders may be used alone or in combination, and are not limited in the present invention.

In addition to the aforementioned components, the oil-powder dispersion system according to the present invention may contain 0.1 to 10% by weight of a sunscreen, and may also contain preservatives (phenoxy ethanol, propylparaben, butylparaben, etc.), antioxidants (tocophenol, etc.). ) And fragrances may be added in one kind or in any combination.

Hereinafter, the present invention will be described in more detail with reference to Examples and Experimental Examples, but these Examples and Experimental Examples are provided only to help illustrate and understand the present invention, but are not intended to limit the present invention. It should be understood that the scope of the present invention is not limited by these examples.

(Example)

Examples 1-4

According to the composition as shown in Table 1 below, 1 to 9 and 13 to 16, which are volatile and nonvolatile oily ingredients except for waxes, oil thickeners, etc., were respectively heated to 47 ° C. to completely dissolve the thickeners and preservatives. After cooling to 30 DEG C, organic and inorganic powders 20 to 26 were added to the oil phase, and then dispersed firstly using a disper mixer, and then rolled three times using a three-stage roller to obtain a cream or gel final product. Were obtained, and the compositions as shown in Table 1 were set to Examples 1 to 4, respectively.

Comparative Example 1

According to the composition as shown in Table 1, 3 to 5, 7 and 13 to 17, which are volatile and nonvolatile oil phase components except oil thickeners, were completely dissolved by heating to 73 ° C., respectively, and then organic and inorganic phases were obtained in the oil phase. The powders 20 to 26 were added and dispersed for 30 minutes, and then the aqueous phases 18 and 19 were heated to 70 ° C, gradually added to the oil phase, and emulsified at 5000 to 6000 rpm for 15 minutes using a homomixer, followed by degassing to 30 ° C. After cooling, a final product containing an aqueous phase was obtained, which was referred to as Comparative Example 1.

Comparative Example 2

According to the composition as shown in Table 1 below, the oily components 3 to 7 and the wax components 10 to 12 were heated to 83 ° C to completely dissolve, and then the organic and inorganic powders 20 to 25 were three times using a three-stage roller. After treatment, the mixture was put in an oil phase, dispersed for 30 minutes at 4000 to 5000 rpm using a homo mixer, degassed, filtered, and cooled to obtain a waxy final product including sticks.

In order to compare Examples 1 to 4 according to the present invention with Comparative Examples 1 and 2, a comparative evaluation was performed based on the evaluation method of Test Example 1 below, and the results are shown in Table 2 below.

Test Example 1

For an objective and fair evaluation, 10 panelists specialized in the evaluation of skin spread, freshness at application, skin familiarity, stickiness after make-up, and persistence sensory evaluation were evaluated on a 5-point scale. (Circle) and the case where 6-7 people judge that the case where it judges that it is good are O, and the case where 4-5 people judge that it is favorable evaluated as the case where it judges that (triangle | delta) and 3 or less persons are favorable.

Ingredient Name Comparative example Example One 2 One 2 3 4 1. Isododecane - - 18.0 - 18.0 2. C11-12 isoparaffin - - - 18.0 - 18.0 3. Cyclomethicone 5.0 5.0 10.0 10.0 10.0 10.0 4. Iononyl isonononates 15.0 10.0 7.0 7.0 7.0 7.0 5. Butylene glycol dicaprylate 5.0 5.0 5.0 5.0 5.0 5.0 6. Caprylic, capric triglyceride - 10.0 5.0 5.0 5.0 5.0 7. Octylmethoxycinnamate 0.5 0.5 0.5 0.5 0.5 0.5 8. Quaternium 18-Hectorite - - 2.5 2.5 2.5 2.5 9. Propylene Carbonate - - 0.5 0.5 0.5 0.5 10. Candelilla Wax - 5.0 - - - - 11. Ceresin Wax - 3.0 - - - - 12. Microcrystalline Wax - 1.0 - - - - 13. Phenoxy Ethanol Quantity Quantity Quantity Quantity Quantity Quantity 14. Butylparaben Quantity Quantity Quantity Quantity Quantity Quantity 15. Tocopherol Acetate Quantity Quantity Quantity Quantity Quantity Quantity 16. Spices Quantity Quantity Quantity Quantity Quantity Quantity 17. Dimethicone Copolyol 2.0 2.0 - - - - 18. Purified water 45.0 - - - - - 19. 1,3-butylene glycol 5.0 - - - - - 20. Polymethylmethacrylate 5.0 10.0 5.0 10.0 15.0 5.0 21. Titanium Oxide 10.0 18.0 18.0 16.0 16.0 16.0 22. Yellow Iron Oxide 2.0 4.0 2.0 2.0 2.0 2.0 23. Red Iron Oxide 0.4 0.4 0.4 0.4 0.4 0.4 24. Black Iron Oxide 0.2 0.2 0.2 0.2 0.2 0.2 25. Silica 0.5 15.0 15.0 15.0 18.0 18.0 26. Serisite - 10.0 5.0 5.0 - 5.0

Sensory evaluation Comparative example Example One 2 One 2 3 4 Dispersion stability O O ◎ ◎ O ◎ Spreadability △ × ◎ O ◎ ◎ Freshness × × ◎ ◎ ◎ ◎ Sticky × × ◎ ◎ O ◎ Persistence O × O ◎ ◎ O State of the composition Liquid Stick figure Cream Cream Cream Gel Hardness of the composition (25 ° C.) * - - 180-220 150-180 120-160 80-120 Viscosity of the composition (25 ° C.) 20000 ~ 25000cps - - - - -

* The hardness and viscosity of the dispersing system were used by Penetrometer (Benetro Meter) and Brookfield Viscometer (Brook Field Viscometer), respectively.

As apparent from Table 2 above, the dispersion-based cosmetics of Examples 1 to 4 prepared without containing water, a surfactant, and a wax are Comparative Example 1, which is a water-oil emulsion type dispersion system, and Comparative Example 2 of a wax-containing cake type. As a result of comparing the dispersive cosmetics and sensory evaluation, the dispersion stability, spreadability, freshness, stickiness, and persistence were found to be excellent in all cases.

As described above, the oil-powder dispersion-based cosmetics, which do not contain water and a surfactant according to the present invention and are composed of volatile oils, an oil thickener, and organic and inorganic powders, have excellent adhesion to skin and spread properties. It can be used very usefully as a color cosmetic having good, long lasting makeup and little stickiness.

Claims (7)

5 to 30% by weight of C _12-20 volatile oil or volatile silicone oil, 0.5 to 20% by weight of nonvolatile oil, 0.5 to 10% by weight of inorganic thickener, and 2 to 50% by weight of powder Non-aqueous and non-surfactant type oil-powder compositions. The method of claim 1, wherein the volatile oil is isododecane, C _7-8 isoparaffin, C _8-9 isoparaffin, C _10-11 isoparaffin, C _11-12 isoparaffin, C _11-13 isoparaffin, At least one compound selected from the group consisting of C _12-20 isoparaffin, C _13-14 isoparaffin, cyclomethicone, cyclotetrasiloxane and cyclopentasiloxane, wherein the nonvolatile oil is isononyl isononano Nate, ethylhexyl isonononate, polyisobutene, lanolin oil, squalane, liquid paraffin, caprylic triglyceride, capric triglyceride, butylene glycol dicaprylate, hexyllaurate, isocetyl myristate, A non-aqueous and non-surfactant type oil-powder composition, which is at least one compound selected from the group consisting of isopropyl myristate and isopropyl palmitate. (delete) The inorganic thickener according to claim 1, wherein the inorganic thickener is quaternium-18 bentonite, quaternium-18 hectorite, aluminum starch octenylsuccinate, calcium carbonate, magnesium stearate, zinc stearate, and the surface is lipophilic or hydrophilic. A non-aqueous and non-surfactant type oil-powder composition, which is at least one compound selected from the group consisting of silicic anhydride. The organic powder group according to claim 1, wherein the powder is composed of polymethylmethacrylate, nylon, cellulose, polyethylene, and silk powder, and titanium oxide, zinc oxide, iron oxide, talc, mica, porous silica, silica dimethylsilicyl yarn. Non-aqueous and non-surfactant containing at least one compound selected from the group of inorganic powders consisting of latex, sericite and kaolin, wherein the inorganic powder is 1-30% by weight and the organic powder is 1-20% by weight. Type oil-powder composition. (delete) 5-30% by weight of volatile oils or volatile silicone oils having 12 to 20 carbon atoms, 0.5-20% by weight of nonvolatile oils, and 0.5-10% by weight of inorganic thickeners are mixed and heated to dissolve the inorganic thickeners described above. A method for stabilizing a non-aqueous and non-surfactant type oil-powder composition as a color cosmetic, comprising adding and mixing 2 to 50% by weight of organic or inorganic powder to a dissolved mixture.