KR20140118592A - Oil-in-water type cosmetic composition comprising inorganic pigment in oil-phase - Google Patents

Abstract

The present invention relates to an oil-in-water type cosmetic composition featuring that an inorganic pigment is dispersed in an oil phase part using a surfactant and, more specifically, to an oil-in-water type cosmetic composition having no sensation of particles by dispersing an inorganic pigment in an oil phase part, and reinforcing hiding power by minimizing a stiff feeling of use due to water evaporation and skin adhesion of powder when applying the product because of containing silicon elastomer, and to a preparing method thereof.

Description

[0001] The present invention relates to an oil-in-water type cosmetic composition containing an inorganic pigment in an oil phase,

The present invention relates to an underwater type cosmetic composition containing an inorganic pigment and a surfactant in an oil phase portion. More particularly, the present invention relates to an underwater-type cosmetic composition which is dispersed in an oil phase using a surfactant to provide a skin-tightness by minimizing the feeling of use due to skin adhesion and moisture evaporation during application of the product, .

In the development of make-up cosmetics, reducing the particle feeling is an important characteristic that is required basically because it can deliver a good feeling when the particle feeling is minimized. However, existing cosmetic makeup cosmetics have disadvantages in that the inorganic particles are dispersed in the water phase, so that the particles are felt directly on the inorganic pigment when the product is applied. In addition, in the case of an underwater type product in which an inorganic pigment is dispersed in an aqueous phase, the powder adheres to the skin after the application of the product, and the moisture is evaporated, and the product is quickly set so that a feeling of use is intense. If the composition is not gently adhered to the skin and is set to be stiff, the composition may not be uniformly applied to the skin, and consequently, the hiding power for blocking skin defects and dirt may be lowered.

The inventors of the present invention have conducted studies for minimizing the particle feel of inorganic pigment in an underwater type make-up cosmetic material and realizing a feeling of soft feeling without stiffness. As a result, when the inorganic pigment is dispersed in an oil phase, , And an underwater type cosmetic composition having enhanced hiding power by uniform application can be prepared, and the present invention has been completed.

In order to achieve the above object, the present invention provides an underwater-type cosmetic composition characterized by dispersing an inorganic pigment in an oil phase using a surfactant and a method for producing the same.

The present invention provides an underwater-type cosmetic composition comprising an inorganic pigment dispersed in an oil-in-water portion using a surfactant, whereby the inorganic pigment does not directly come into contact with the skin, There is an advantage that it can be applied. In addition, the composition of the present invention is excellent in water resistance because the surface of the inorganic pigment is wetted with oil, and a silicone elastomer having a smooth feeling is used together to prevent the skin from coming into close contact with the skin and rapidly setting by moisture evaporation, Thereby making it possible to further enhance the hiding power.

1 is an optical microscope photograph of Example 2. Fig.
Fig. 2 is a photograph of the vials of Comparative Example 1 and Example 2, which were poured with water and observed after 15 minutes.

The present invention relates to an underwater type cosmetic composition containing an inorganic pigment and a surfactant in an oil phase portion.

Hereinafter, the present invention will be described more specifically.

The present invention provides an underwater-type cosmetic composition comprising an inorganic pigment dispersed in an oil phase using a surfactant, wherein the inorganic pigment is dispersed in the oil phase by using an inorganic pigment hardly dispersed in the oil phase, .

The inorganic pigment of the present invention is contained in an amount of 0.5 to 15% by weight based on the total weight of the composition. If it is contained in an amount of less than 0.5% by weight, it is difficult to perform the function of concealing the make-up. If it is contained in an amount exceeding 15% by weight, it is difficult to disperse the inorganic pigment in the oil phase. The inorganic pigments can be used differently depending on the ultraviolet barrier function, coverage, color and spreadability of the composition. Examples of the inorganic pigments include titanium dioxide, zinc oxide, iron oxide, mica, silica, talc and boron nitride.

The surfactant of the present invention is used to disperse the inorganic pigment in the oil phase. The surfactant has a low HLB to minimize the particle feel, and preferably has an HLB of 1 to 9 of the surfactant. The surfactant may be selected from the group consisting of sorbitan series such as sorbitan isostearate, PEG-10 dimethicone, cetyl PEG / 10/1 dimethicone (Cetyl PEG / PPG Polyglyceryl-2-dipolyhydroxystearate (polyglyceryl-2-dipolyhydroxy stearate) such as Lauryl PEG-9 polydimethylsiloxyethyl dimethicone, ), And the like, but the present invention is not limited thereto. Preferably, lauryl pyridine-9 polydimethylsiloxyethyl dimethicone can be used. The surfactant may be contained in an amount of 0.1 to 3% by weight based on the total weight of the composition. If the surfactant is contained in an amount less than 0.1% by weight, the dispersion of the inorganic pigment can not be sufficiently assisted. If the surfactant is contained in an amount exceeding 3% by weight, the surfactant balance may be broken and transferred.

The water-in-oil cosmetic composition of the present invention may contain 30 to 80% by weight of water-based ingredients and 15 to 60% by weight of water-based ingredients based on the total weight of the composition.

The aqueous top component of the present invention may be contained in an amount of 30 to 80% by weight based on the total weight of the composition. The above aqueous component may be at least one selected from the group consisting of purified water, polyol such as butylene glycol or glycerin, and an increasing agent such as xanthan gum or bentonite, but is not limited thereto. The above-mentioned water-based ingredients can be used differently depending on the feeling of use and functionality of the sculpture.

The oily component of the present invention may be contained in an amount of 15 to 60% by weight based on the total weight of the composition. The oil phase component may be selected from the group consisting of silicone oil such as cyclopentasiloxane or phenyl trimethicone, ester oil such as dicapryllyl carbonate or C12-15 alkylbenzoate, cetearyl alcohol Alcohol, wax such as glyceryl stearate, and the like, but not limited thereto.

In one embodiment of the present invention, the underwater type cosmetic composition may further comprise a silicone elastomer and is contained in the oil phase portion. The silicone elastomer may be selected from the group consisting of dimethicone dimethicone / vinyl dimethicone crosspolymer, dimethicone / vinyldimethicone crosspolymer, dimethicone crosspolymer, dimethicone copolyol crosspolymer, ), Polysilicon, Dimethicone / PEG Crosspolymer, Dimethicone / Polyglycerin Crosspolymer, and the like, but the present invention is not limited thereto. The dimethicone dimethicone / vinyl dimethicone cross polymer may be preferably used. The silicone elastomer may be contained in an amount of 0.01 to 10% by weight based on the total weight of the composition. When the silicone elastomer is contained in an amount of less than 0.01% by weight, the composition can not be gently adhered to the skin. If the silicone elastomer is contained in an amount exceeding 10% by weight, it is difficult to stabilize the formulation.

The water-in-oil type cosmetic composition according to the present invention may further contain preservatives, fragrances and the like used in cosmetics in the art within the scope of not hindering the object of the present invention, but the composition is not limited thereto.

The underwater-type cosmetic composition according to the present invention may be used as an ultraviolet screening agent, a whitening agent, a wrinkle-improving composition, but is not limited thereto.

The present invention provides a process for producing a colorant, comprising: a) an inorganic pigment and a surfactant in a liquid phase; And b) mixing the upper part of the water and the upper part of the oil phase.

The oily component of the production process of the present invention may be contained in an amount of 15 to 60% by weight based on the total weight of the composition. The oil phase component may be selected from the group consisting of silicone oil such as cyclopentasiloxane or phenyl trimethicone, ester oil such as dicapryllyl carbonate or C12-15 alkylbenzoate, cetearyl alcohol Alcohol, wax such as glyceryl stearate, and the like, but not limited thereto. Preferably, a silicone oil can be used.

The inorganic pigment of the production method of the present invention is contained in an amount of 0.5 to 15% by weight based on the total weight of the composition. If it is contained in an amount of less than 0.5% by weight, it is difficult to perform the function of concealing the make-up. If it is contained in an amount exceeding 15% by weight, it is difficult to disperse the inorganic pigment in the oil phase. The inorganic pigments include, but are not limited to, titanium dioxide, zinc oxide, iron oxide, mica, silica, talc or boron nitride.

The surfactant is used to disperse the inorganic pigment in the oil phase. In order to minimize the particle feeling, a surfactant having a low HLB is used, and the HLB of the surfactant is preferably 1 to 9. The surfactant may be selected from the group consisting of sorbitan series such as sorbitan isostearate, PEG-10 dimethicone, cetyl PEG / 10/1 dimethicone (Cetyl PEG / PPG Polyglyceryl-2-dipolyhydroxy stearate, etc., such as Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone, etc., , But it is not limited thereto. Preferably, lauryl pyridine-9 polydimethylsiloxyethyl dimethicone can be used. The surfactant may be contained in an amount of 0.1 to 3% by weight based on the total weight of the composition. If the surfactant is contained in an amount less than 0.1% by weight, the dispersion of the inorganic pigment can not be sufficiently assisted. If the surfactant is contained in an amount exceeding 3% by weight, the surfactant balance may be broken and transferred.

In one embodiment of the present invention, the step a) may be a step of dispersing the inorganic pigment and the silicone elastomer in the oil phase. The silicone elastomer may be selected from the group consisting of dimethicone dimethicone / vinyl dimethicone crosspolymer, dimethicone / vinyldimethicone crosspolymer, dimethicone crosspolymer, dimethicone copolyol crosspolymer, ), Polysilicon, Dimethicone / PEG Crosspolymer, Dimethicone / Polyglycerin Crosspolymer, and the like, but the present invention is not limited thereto. Dimethicone dimethicone / vinyl dimethicone crosspolymer can be preferably used. The silicone elastomer may be contained in an amount of 0.01 to 10% by weight based on the total weight of the composition. When the silicone elastomer is contained in an amount of less than 0.01% by weight, the composition can not be gently adhered to the skin. If the silicone elastomer is contained in an amount exceeding 10% by weight, it is difficult to stabilize the formulation.

The aqueous top component of the production process of the present invention may be contained in an amount of 30 to 80% by weight based on the total weight of the composition. The above aqueous component may be at least one selected from the group consisting of purified water, a polyol such as butylene glycol or glycerin, an increasing agent such as xanthan gum or bentonite, but is not limited thereto. The above-mentioned water-based ingredients can be used differently depending on the feeling of use and functionality of the sculpture.

The present invention will be described in more detail with reference to the following examples and test examples. However, the following examples and test examples are provided to aid understanding of the present invention, and the scope of the present invention is not limited in any way by these examples and test examples.

[ Example  1 to 2 and Comparative Example  1] Underwater type Cosmetics  Preparation of composition

The compositions for underwater type cosmetic compositions of Examples 1 and 2 and Comparative Examples 1 and 2 were prepared with the compositions shown in Table 1 below. Comparative Example 1 was prepared by dispersing an inorganic pigment in water, and Comparative Example 2 was produced by dispersing an inorganic pigment in water and containing a silicone elastomer. Example 1 is obtained by dispersing an inorganic pigment in an oil phase, and Example 2 is produced by dispersing an inorganic pigment in an oil phase and containing a silicone elastomer. In order to enable the inorganic pigment to be well dispersed in the oil phase, a surfactant having a low HLB was used. The surfactant used in the preparation was lauryl pyridine-9 polydimethylsiloxyethyl dimethicone, Condimethicone / vinyl dimethicone cross polymer.

division ingredient Comparative Example 1 Comparative Example 2 Example 1 Example 2 Water top Purified water 58.0 57.8 57.5 57.3 Butylene glycol 10.0 10.0 10.0 10.0 Xanthan gum 1.1 1.1 1.1 1.1 Phenoxyethanol 0.4 0.4 0.4 0.4 Inorganic pigments Titanium dioxide 8.5 8.5 8.5 8.5 Red iron oxide (Iron oxide CI 77491) 2.3 2.3 2.3 2.3 Yellow iron oxide (Iron oxide CI 77492) 0.8 0.8 0.8 0.8 Iron oxide CI 77499 0.4 0.4 0.4 0.4 Floating Behenyl alcohol 0.3 0.3 0.3 0.3 Cetearyl alcohol 1.0 1.0 1.0 1.0 FAGE -100 stearate 1.4 1.4 1.4 1.4 Glyceryl stearate 0.8 0.8 0.8 0.8 Ethyl hexylmethoxycinnamate 5.0 5.0 5.0 5.0 Cyclopentasiloxane 10.0 10.0 10.0 10.0 Lauryl phage-9 polydimethylsiloxy ethyl dimethicone - - 0.5 0.5 Dimethicone Dimicone / Vinyl Dimethicone Crosspolymer - 0.2 - 0.2

 [ Test Example  1] Observation of dispersion of inorganic pigment particles

In order to confirm the dispersity of the inorganic pigment particles in the cosmetic composition according to the present invention, the compositions of Examples 1 to 2 and Comparative Examples 1 and 2 were observed under an optical microscope. It was confirmed that the inorganic pigment was uniformly dispersed in the particles in the composition of Example 1 in which the inorganic pigment was dispersed in the oil phase together with the surfactant having a low HLB in order to minimize the particle feel. It was also confirmed that the inorganic pigment was dispersed in the oil phase, The composition of Example 2 can be confirmed by a microscope that the inorganic pigment is dispersed in the particles to reduce the graininess (Fig. 1).

In Comparative Example 1 and Example 2, water was poured into the vial, and after 15 minutes, water was observed and the results are shown in FIG. 2, in Comparative Example 1, the inorganic pigment particles were unevenly loosened and loosened in water, but in Example 2, smooth and uniform spreading was observed in water. This means that even when used in actual skin, the inorganic pigment is dispersed in the oil phase, and the cosmetic composition containing the silicone elastomer is applied more smoothly and uniformly without feeling of graininess and tight finish.

[ Test Example  2] Feeling  Measure

In order to examine the feeling of use of each of the cosmetics prepared in Comparative Examples 1 to 2 and Examples 1 and 2, feeling of use (particle feeling, softness at the time of initial application, feeling of feeling of a tight finish) was evaluated through a panel test, Respectively. The panelists were 15 women aged 25 to 42. The results are shown in Table 2 below. The results are shown in Table 2. The results are shown in Table 2. [Table 2] < tb > < TABLE >

Comparative Example 1 Comparative Example 2 Example 1 Example 2 Particle sensation 4.7 4.5 1.4 1.2 Softness at initial application 2.7 2.8 4.1 4.3 Stiff finish feeling 4.8 4.4 2.0 1.2

(Based on the 5-point scale, 1 point ↔ 5 points in ascending order)

As can be seen from the above Table 2, in Comparative Example 1 in which the inorganic pigment was dispersed in water, the feeling of the particles was felt much, and it was evaluated that it felt stiff when the cosmetic was applied and set at the beginning. Also in the case of Comparative Example 2, as in Comparative Example 1, it was evaluated that the feeling of a lot of particles was felt and the softness was poor at the initial coating. In the case of Example 1 in which the inorganic pigment was dispersed in the oil phase portion, the feeling of the particles was much smaller than those of Comparative Examples 1 and 2, and it was evaluated to feel smoothly at the initial application of the product. Further, Example 2 containing a silicone elastomer showed a feeling of less granular feeling and softness as compared with Example 1, and in particular, in Example 2, it was not so stiff as Example 1, Respectively.

[ Test Example  3] Hiding power  compare

To confirm the hiding power of the makeup cosmetic composition of the present invention, 25 mg of each of Comparative Examples 1 to 2 and Examples 1 to 2 was applied to black artificial leather (5 x 5 cm 2) and allowed to stand for 10 minutes. And measured by a spectrophotometer. The change in the lightness (L *) was measured three times before and after application of the composition to the black artificial leather and is shown in Table 3.

division Comparative Example 1 Comparative Example 2 Example 1 Example 2 Hysteresis (? L) 10.32 10.41 13.74 17.41

As shown in Table 3, the hiding power was evaluated to be good in Examples 1 and 2 in which the inorganic pigment was dispersed in the oil phase, as compared with Comparative Examples 1 and 2 in which the inorganic pigment was dispersed on the water. It was evaluated that the hiding power is further improved in the case of containing a silicone elastomer.

Claims (7)

An underwater type cosmetic composition comprising an inorganic pigment and a surfactant in an oil phase. The composition of claim 1, wherein the surfactant is selected from the group consisting of sorbitan sodiacetate, phage-10 dimethicone, cetyl phage / phage-10/1 dimethicone, lauryl phage polydimethylsiloxyethyl dimethicone, and poly Glyceryl-2-dipylylhydroxystearate, and glyceryl-2-dipylylhydroxystearate. The underwater-type cosmetic composition according to claim 1, wherein the surfactant has an HLB of 1 to 9. The underwater type cosmetic composition according to any one of claims 1 to 3, further comprising a silicone elastomer.  5. The composition of claim 4 wherein the silicone elastomer is selected from the group consisting of dimethicone / vinyl dimethicone crosspolymer, dimethicone crosspolymer, dimethicone copolyol crosspolymer, polysilicon, dimethicone / phage crosspolymer and dimethicone / polyglycerin crosspolymer Wherein the at least one cosmetic composition is at least one selected from the group consisting of: a) an inorganic pigment and a surfactant in an oil phase; And b) mixing the water-in-oil and water-in-water. [7] The method according to claim 6, wherein the step a) is a step of dispersing the inorganic pigment and the silicone elastomer in the oil phase.

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