KR101634595B1 - Makeup cosmetic composition of W/O emulsion with inner dispersing particle pigments - Google Patents

Abstract

The present invention relates to a makeup cosmetic composition in the form of a water-in-oil type in which the pigment is dispersed in water as an internal phase. More specifically, the present invention relates to a makeup cosmetic composition in which a pigment is dispersed in water as an internal phase by hydrophilizing the coating pigment with an O / W emulsifier, The present invention relates to a makeup cosmetic composition in a water-in-oil type which is uniformly dispersed in emulsified particles and uniformly applied even when the covering force is high, and has excellent spreadability.

Coating Pigment, Inner Dispersion, Ring Milling, Surfactant, Water-in-oil Makeup Cosmetic

Description

[0001] The present invention relates to a make-up cosmetic composition comprising a pigment,

The present invention relates to a makeup cosmetic composition in the form of a water-in-oil type in which the pigment is dispersed in water as an internal phase. More specifically, the present invention relates to a makeup cosmetic composition in which a pigment is dispersed in water as an internal phase by hydrophilizing the coating pigment with an O / W emulsifier, The present invention relates to a makeup cosmetic composition in a water-in-oil type which is uniformly dispersed in emulsified particles and uniformly applied even when the covering force is high, and has excellent spreadability.

In the existing cosmetics field, a water-in-oil type make-up cosmetic is made by dispersing the pigment in the traumatic oil phase and stabilizing the emulsified formulation using a surfactant having a low hydrophile-liphophile balance (HLB). In this case, the pigments are located within the traumatic oil phase, and the products having a high covering power have a high pigment content, and they have a disadvantage that they feel stiff. In addition, the higher the content of the pigments, the lower the degree of dispersion, the lower the uniformity of application and the lower the stability of emulsification. Thus, the products with high coverage are mainly applied to cream or cake formulations.

In recent years, however, as the trend of preference for light feeling has been reflected, the covering force is high, but the uniformity of irregularly spreading and softening of the volley is increasingly demanded.

Accordingly, the present inventors have found that the use of the same or a small amount of pigment as an emulsifier in comparison with a conventional method of dispersing a pigment and a conventional emulsifying agent, Lt; RTI ID = 0.0 > emulsion < / RTI >

Accordingly, it is an object of the present invention to provide a make-up cosmetic composition in the form of a water-in-oil type which is uniformly applied even when the covering force is high, and the feeling of use is light.

In order to achieve the above object, the present invention provides a makeup cosmetic composition for in-water type in which the coating pigment is stabilized inward.

The pigment may be at least one selected from the group consisting of titanium dioxide (TiO ₂ ), micro TiO ₂ , zinc oxide (ZnO), micro ZnO, iron oxide (FeO Al ₂ O ₃ , barium sulfate, BaSO ₃ , silica (SiO ₂ ), talc, kaolin (Fe ₂ O ₃ ), Fe ₃ O ₄ , Sericite, and mica, and is at least one selected from the group consisting of dimethicone, methicone, caprylyl silane and silicones of fluorine-based silicone, and lauroyl lysine, disodium stearoyl Glutamate, glutamic acid, glutamate and sodium myristyl glutamate. The present invention also provides a makeup cosmetic composition comprising the same.

The makeup cosmetic material for in-water type according to the present invention is uniformly applied even when having the same amount of pigments as in the past, but has a small feeling of a feeling of being soft and has a feeling of soft feeling and a low viscosity and stable formulation is possible.

In the present invention, the pigment is dispersed in the aqueous phase which is the internal phase. In general, uncoated pigments are used to easily disperse pigments in water phase. In the present invention, silicone coating pigments are used for sustainability after make-up, or amino acid derivative coating pigments are used for skin affinity. Examples of the silicone coating include silicones such as dimethicone, methicone, caprylyl silane, and fluorinated silicone; and lauroyl lysine, disodium stearoyl glutamate, sodium myristyl glutamate and the like as the amino acid derivative coating. Can be used. The coating content is preferably 1 to 3% by weight based on the weight of the pigment.

The pigment may be at least one selected from the group consisting of titanium dioxide (TiO ₂ ), micro TiO ₂ , zinc oxide (ZnO), micro ZnO, iron oxide (FeO Al ₂ O ₃ , barium sulfate, BaSO ₃ , silica (SiO ₂ ), talc, kaolin (Fe ₂ O ₃ ), Fe ₃ O ₄ , Sericite, and mica.

In the present invention, the coating pigment is contained in an amount of 1 to 15% by weight based on the total weight of the composition. When the content of the coating pigment is less than 1% by weight, the makeup effect is weak. When the content is more than 15% by weight, it is difficult to stabilize the pigment dispersion.

In order to disperse the coating pigment in water as an internal phase, it is treated with hydrophilic treatment with an O / W emulsifier and dispersed in the interior. More specifically, a surfactant having a high hydrophile-liphophile balance (HLB) is used as an O / W emulsifier, and the coating pigment is pre-mixed and milled together with a surfactant and a polyol, Disperse and disperse. In this case, the surfactant having a high HLB has a HLB value of 9 to 15, and may be a PEG-30 hydrogenated castor oil, glyceryl stearate and PEG-100 stearate, polyethylene glycol mono But are not limited to, polyethylene glycol monoisostearate, Cetearyl Olivate / Sorbitan Olivate, Hydrogenated Lecithin, Arachidyl Alcohol, and Behenyl Alcohol And arachidyl glucoside, Cetearyl Alcohol / Cetearyl Glucoside, Polysorbate 80, Polysorbate 60, and the like. The content thereof is preferably 0.1 to 1.5% by weight based on the total weight of the composition. When the amount is less than 0.1% by weight, the pigment dispersion is not smooth. When the amount is more than 1.5% by weight, stability of the water-in-oil type formulation is unstable.

The polyols are not particularly limited as long as they are water-soluble, and their content is preferably 2 to 10% by weight based on the total weight of the composition. When the amount is less than 2% by weight, pigment wetting is not smooth. When the amount is more than 10% by weight, the emulsion stability is unstable.

As a preliminary mixing and processing method, in addition to roll milling, ball milling and ring milling, general pigment mixing and milling methods such as duchem mixing can be used, but ring milling is preferably used. In this case, ring milling depends on the pigment coating type, but a preferable size distribution can be obtained in about 5 to 30 minutes.

The water-in-oil type make-up cosmetic composition of the present invention is preferably used for a cosmetic for ultraviolet ray shielding including a foundation containing a pigment for correcting skin color, a makeup base cosmetic or an ultraviolet screening agent, , Creams, and cake formulations.

Hereinafter, the present invention will be described in more detail with reference to Examples. These embodiments are only for describing the present invention more specifically, and the scope of the present invention is not limited by these embodiments in accordance with the gist of the present invention.

[Manufacturing Example] Preparation of Foundation

An emulsion of Example 1 (pre-dispersion by anti-icing dispersion foundation and roll milling), Example 2 (anti-dispersive foundation by ring milling) and Comparative Example 1 (general foundation) were produced according to the composition shown in Table 1 below .

division Raw material name Example 1
Example 2 Comparative Example 1 Paid
ingredient 1. Decamethylcyclopentasiloxane 10.00 10.00 2. Dicaprylyl carbonate 10.00 10.00 3. Squalane 10.00 10.00 Emulsifier 4. Cetyl Phage / Pefji-10/1 Dimethicone 2.5 2.5 5. Lauryl Phage-9 Polydimethylsiloxyethyl dimethicone 1.00 1.00 Organic constituent pigment 6. Polymethylsilsesquioxane (PMSQ) 1.00 1.00 Flow control agent 7. di-stearmonium hectorite 0.50 0.50 Sunscreen 8. 2-Ethylhexyl methoxycinnamate 3.00 3.00 Preservative 9. Paraoxybenzoate Suitable amount Suitable amount solvent 10. Purified water Balance Balance Preservative 11. Phenoxyethanol Suitable amount Suitable amount Ion blocker 12. Disodium di- 0.05 0.05 Emulsifying stabilizer 13. Sodium chloride 1.00 1.00 Pigment 14. Dimethicone coated titanium oxide, iron oxide 11.0 11.0 폴리올 15. Butylene glycol 10.00 10.00 Surfactants with high HLB 16. Polyethylene glycol monoisostearate 0.2 - Surfactants with high HLB 17. Polysorbate 60 0.8 -

≪ Manufacturing process - Comparative Example 1 >

1) The oil components, emulsifier, flow control agent, oil-soluble preservative and sunscreen agent were mixed up to 1-9.

2) Purified water, ion blocker, emulsifying stabilizer and water-soluble preservative, which are raw materials up to 10-13, were dissolved.

3) 14 Pigments were added to the mixture of 1) above and dispersed with a homogenizer.

4) The solution of 2) above was added to the mixture of 3) and emulsified by a homogenizer.

≪ Manufacturing process - Example 1 >

1) The oil components, emulsifier, flow control agent, oil-soluble preservative and sunscreen agent were mixed up to 1-9.

2) Purified water, ion blocker, emulsifying stabilizer and water-soluble preservative, which are raw materials up to 10-13, were dissolved.

3) The coating pigments, polyol, high surfactant having high HLB, which are raw materials up to 14-17, were roll-milled and then mixed in the mixture of 2) and dispersed with an azimixer.

The solution 2) was added to the mixture of 3) and emulsified with a homogenizer.

≪ Manufacturing process - Example 2 >

1) The oil components, emulsifier, flow control agent, oil-soluble preservative and sunscreen agent were mixed up to 1-9.

2) Purified water, ion blocker, emulsifying stabilizer and water-soluble preservative, which are raw materials up to 10-13, were dissolved.

3) After the ring-milling treatment of coating pigments, polyol and high HLB as raw materials up to 14-17, the mixture was added to the mixture of 2) and dispersed with an azimixer.

The solution 2) was added to the mixture of 3) and emulsified with a homogenizer.

[Test Example 1] Coverage comparison

Skin B of a person having many skin defects (spots, freckles, dirt, acne, etc.), skin A of a healthy person, using a puff as a cosmetic tool, taking a certain amount of the contents by the same force, After the film was formed, the brightness of the skin was measured using a spectrophotometer, and the relative hiding power was calculated by the following equation (1) in comparison with the standard (when not coated). The results are shown in Table 2 below.

Hiding power _{= ((L * A0 - L} * B0) - (L * A1 - L * B1)) / (L * A0 - L * B0)

(L _{* A0} : brightness before application, brightness of skin A, L _{* B0} = brightness before application, brightness of skin B

L _{* A1} : brightness of skin A coated with sample, L _{* B1} = brightness of skin B coated with sample)

Coverage Example 1 20.1 Example 2 21.3 Comparative Example 1 16.6

It can be seen from Table 2 that even though the same amount of pigment is contained in Examples 1 and 2 according to the present invention, the covering force (hiding power) is higher than that of Comparative Example 1 which is a conventional product. Also, it can be seen that the covering force is further improved in the case of Example 2 using ring milling by the pigment dispersion method. This shows that the composition of the present invention is capable of developing a formulation having higher coverage even with a smaller amount of pigment.

[Test Example 2] Dispersing force comparison

The dispersion state of Example 1, Example 2, and Comparative Example 1 was confirmed by magnifying 1,000 times with an optical microscope, and this is shown in FIG. In FIG. 1, the black dot represents pigment, and white, light pink, and light brown represent emulsion particles.

1, it can be seen that the cosmetic compositions of Examples 1 and 2 are more uniformly dispersed than that of Comparative Example 1 which is a conventional makeup cosmetic.

[Test Example 3] Comparison of viscosity, wettability and emulsion stability

The viscosity was measured by using a rheometer DV III (Brookfield) after allowing the samples (Example 1, Example 2 and Comparative Example 1) to stand at 30 ° C for 24 hours, And a 40-year-old female 50-person panel. The mean value of the five-point scale was measured.

In addition, the stability of emulsification was measured at 4O < 0 > C and 4O < 0 > C for 4 weeks.

Example 1 Example 2 Comparative Example 1 Viscosity (cps) 12000 ± 1000 11000 ± 1000 21000 ± 2000 Soft hair (sensual) 4.9 5.0 4.3 Persistence 4.5 4.6 4.6 Emulsion stability Good Good Good Coating uniformity 4.0 4.5 3.6

<Evaluation criteria of 5 points scale>

5 points: Very yes, 4 points: Yes, 3 points: Average

2 points: not so, 1 point: very not so

<Emulsion stability evaluation standard> - Compared with 4 ℃ sample

Poor: Oil splits off or internal moisture gets brittle

Normal: Oil is finely separated.

Good: No separation of oil, no difference from 4 ℃ sample

From the results of Table 3, in the case of Examples 1 and 2 in which pigments are dispersed in an inner phase, persistence and stability are similar to those of Comparative Example 1 which is a conventional product, but in the case of Examples 1 and 2 according to the present invention , The viscosity is lower than that of Comparative Example 1, and pigments are present on the inner surface, so that it does not directly touch the skin, thereby giving a smoother running ability. In addition, it can be seen that the dispersibility of the pigment is more improved by ring milling in Example 2 than in Example 1.

Fig. 1 shows the dispersion state of Example 1, Example 2, and Comparative Example 1 magnified 1000 times by an optical microscope.

Claims (11)

In a water-in-oil type make-up cosmetic composition wherein the coating pigment is finely dispersed in an aqueous phase which is the inner phase, the coating portion is pre-mixed by ring milling together with a surfactant and a polyol of hydrophilic-lipophile balance (HLB) In-water type make-up cosmetic composition. The method of claim 1, wherein the pigment is selected from the group consisting of titanium dioxide (TiO ₂ ), micro TiO ₂ , zinc oxide (ZnO), micro ZnO, iron oxide _{, FeO (ⅱ) Fe 2 O} 3 (ⅲ), Fe 3 O 4 (ⅳ)), aluminum oxide _{(alumina, Al 2 O 3)} , barium sulfate (barium sulfate, BaSO _3), silicon dioxide (silica, SiO ₂ ), At least one selected from the group consisting of talc, kaolin, sericite and mica, The coating pigments include silicones made of dimethicone, methicone, caprylyl silane and fluorinated silicone; And an amino acid derived residue composed of lauroyl lysine, disodium stearoyl glutamate, and sodium myristyl glutamate. The in-water makeup cosmetic composition according to claim 1, wherein the coating pigment is contained in an amount of 1 to 15% by weight based on the total weight of the composition. delete delete delete The method of claim 1, wherein the surfactant is selected from the group consisting of PEG-30 hydrogenated castor oil, glyceryl stearate and PEG-100 stearate, polyethylene glycol mono-isostearate Monoisostearate, Cetearyl Olivate / Sorbitan Olivate, Hydrogenated Lecithin, Arachidyl Alcohol and Behenyl Alcohol, and Arachidyl Glucoside And at least one selected from the group consisting of Arachidyl Glucoside, Cetearyl Alcohol / Cetearyl Glucoside, Polysorbate 80 and Polysorbate 60 In-water type make-up cosmetic composition. The in-water type makeup cosmetic composition according to claim 1, wherein the surfactant is contained in an amount of 0.1 to 1.5% by weight based on the total weight of the composition. The in-water type make-up cosmetic composition according to claim 1, wherein the polyol is water-soluble. The makeup cosmetic composition according to claim 1, wherein the polyol is contained in an amount of 2 to 10% by weight based on the total weight of the composition. The makeup cosmetic composition according to claim 1, wherein the composition is formulated in the form of a liquid, a cream or a cake in the form of a foundation, a makeup base cosmetic or an ultraviolet screening cosmetic.

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