KR102117246B1 - Water-dispersible type cosmetic composition having two layer - Google Patents

Abstract

The present invention relates to a two-layered aqueous dispersion-type cosmetic composition, wherein the purified water comprises a water-phase containing an ionic metal compound and a powdery form of an inorganic pigment.
According to the present invention, in the case of the two-layer aqueous dispersion type cosmetic composition of the present invention, by containing an ionic metal compound in the water phase, the layer separation can be cleaned and the transparency of the upper water phase layer can be significantly increased, and powders of various sizes can be used. Not only can the precipitation rate be easily adjusted, but the product can be easily manufactured. In addition, compared to a liquid product containing a conventional powder, the coolness and moisturizing feeling are superior, and the stickiness is less in the finish of the makeup, so the feeling of use is excellent.

Description

Water-dispersible type cosmetic composition having two layers

The present invention relates to a two-layer water-dispersion type cosmetic composition, and more specifically, a two-layer water-dispersion type cosmetic composition, characterized in that it comprises a powder phase of an aqueous and inorganic pigment containing an ionic metal compound in purified water. It relates to a two-layer aqueous dispersion type cosmetic composition.

The conventional cosmetic composition having a two-layer structure is one that uses a two-layered phase composed of a water phase and a polar oil as in Korean Patent Registration No. 10-1123137 or a liquid having a different specific gravity as in Korean Patent Publication No. 10-2009-0045567. It was mostly. The two-layer cosmetic composition of the present invention has a problem in that it cannot contain things important for color or makeup correction such as powder.

There have been several patents applying powder, but each has the cumbersome process and limitations as mentioned below. Specifically, Korean Registered Patent No. 10-1144469 relates to an oil-free makeup cosmetic composition, and is similar to the present invention in a portion without oil, but does not contain a metal ion as in the present invention, and also uses a thickener. Therefore, it is stiff and dry in relative moisture and spreadability. Korean Patent Registration No. 10-0933551 also relates to a two-layered cosmetic composition using a specific gravity difference between a powder layer composed of a water layer and a powder component, but it is constructed considering only the specific gravity difference, and it is difficult to disperse the powder to give a specific gravity difference. Since the level should be added and a certain amount of aluminum chlorohydrate, which is difficult to control, must be added to control the sedimentation speed, a separate roll mill process is required to evenly disperse these powders, making manufacturing complex. Korean Patent Publication No. 10-2015-006206 has a powder layer and a water dispersion layer similar to the present invention, but there is a hassle of treating the surface twice to prevent caking after sedimentation, and accordingly the surface modification is not suitable. There is a disadvantage that it is difficult to use insoluble powder. Korean Patent Publication No. 10-2016-0041111 also relates to a three-layer foundation cosmetic composition. Although the first and second layers are divided into a water layer and a powder layer, the hassle of changing the surface modification to amphiphilic for separation and sedimentation, etc. There is this.

Thus, the present inventors, as a result of diligent research efforts to overcome the problems of the prior art, in a two-layer water dispersion type cosmetic composition, characterized in that it comprises a powder phase of an aqueous and inorganic pigment containing an ionic metal compound in purified water In the case of the two-layered water dispersion type cosmetic composition to be made, by containing an ionic metal compound in the water phase, it is possible to prepare a two-layered water dispersion type cosmetic composition with excellent layer separation and transparency, and to control the rate at which the powder sinks. It was confirmed that it is possible to prepare a water-dispersion type cosmetic composition on a two-layer layer having excellent cooling and moisturizing feeling, as well as being relatively simple, and the present invention was completed.

KR 10-1123137 B KR 10-1144469 B KR 10-0933551 B KR 10-2015-0066206 A KR 10-2016-0041111 A KR 10-2016-0066206 A

Therefore, the main object of the present invention is to prepare a water-dispersion type cosmetic composition of two layers with excellent layer separation and transparency, and to control the rate at which the powder settles, and the manufacturing process is relatively simple as well as excellent cooling and moisturizing feeling. It is to provide a two-layer water-dispersion type cosmetic composition.

According to one aspect of the present invention, the present invention is a two-layered water-dispersible cosmetic composition, characterized in that it comprises a powder phase of an aqueous pigment and an inorganic pigment containing an ionic metal compound in purified water. Gives

In the case of a conventional two-layer cosmetic composition composed of a water phase and a powder phase, the powder phase having a negative charge (-) when dissolved and dissolved in water of the water phase does not settle well when suspended and floats on the water phase, so the upper water phase layer It was difficult to redistribute the powders to the water phase when used, because the powders in the opaque, submerged powder layer were agglomerated together (causing a caking phenomenon). However, when the aqueous phase contains an ionic metal compound as in the present invention, when the ionic metal compound dissolved in the aqueous phase is dissolved in water, a metal ion that exhibits a positive charge of the ionic metal compound is combined with a powder that has a negative charge to water. It is easy to redisperse because it is well submerged and the layer separation is excellent, the water layer increases transparency, and the powder of the submerged powder layer does not clump due to the repulsive force between positive charges on the surface. In addition, the precipitation speed of the powder can be adjusted according to the content of the ionic metal compound, and it is confirmed that the moisturizing feeling and cool feeling are excellent, and the present invention has been completed.

Specifically, the present invention is to make the contents of the two-layer by precipitating the powder phase at a constant rate in the water phase. In general, powders in the water phase settle freely. Therefore, it is separated into two layers naturally. However, to keep the separation clean, to match the sedimentation speed of powder particles of different sizes and shapes, to make the powder phase of the precipitated powder layer mix well again without caking (clumping), and to make the water phase cleanly transparent. It is difficult to have it.

Conventional general two-layer products make separation using specific gravity, compatibility difference, polarity difference, and when classifying into powder layer and aqueous layer, powder is coated or dispersed in oil to make specific gravity difference or pigment or specific The specific gravity difference is made using polyol to form a two-layered phase. In this case, there is a disadvantage that all powders need to be pretreated or limited to a specific feeling of use, and manufacturing is complicated.

In the present invention, a cosmetic composition is prepared by dissolving an ionic metal compound in an aqueous phase to ionize, and then adjusting the charge on the surface of the powder to give a specific gravity difference to form a two-layered phase and to prevent the caking phenomenon that agglomerates with each other during precipitation. This method can be applied to all insoluble powders, and it is easy to manufacture by simply adding powder to the water phase and shaking it. It is easy to control the precipitation rate with only ionic metal compounds and a small amount of polyol. Volume adjustment between layers is possible using low raw materials, so it is easy to give product characteristics. In addition, since it is not necessary to use a separate surfactant, a thickener, or a polyol having a long hydrophobic residue, the transparency is excellent.

The term'two-layer' of the present invention means that the aqueous dispersion-type cosmetic composition of the present invention is shaken to disperse the powder phase in the aqueous phase and then stand again to separate the aqueous phase layer and the lower phase powder layer.

In addition, the term'water dispersion type' of the present invention means a form in which a powder phase is dispersed in an aqueous phase when shaken to use the water dispersion type cosmetic composition of the present invention.

In the present invention, the two-layer aqueous dispersion type cosmetic composition is characterized in that it does not contain an oil, a surfactant and a thickener.

Among the two-layered cosmetic compositions, a two-layered phase was prepared by using the properties of the water phase and the polar oil not being mixed. However, in the case of such a two-layered cosmetic composition, it is impossible to mix ingredients such as powder or powder, which are important for cosmetic correction. There is a problem. In order to solve this problem, the present invention was made to not include oil, and since it does not contain oil, a surfactant capable of affecting transparency is not included, thereby increasing transparency. In addition, the contents of the two-layered cosmetic composition containing no oil include a thickening agent in order to stabilize the contents, and when such a thickening agent is included, it is difficult to form a two-layered phase or a cosmetic composition having a very low transparency is manufactured. In the case, a thickener was not included, and a two-layer water-dispersible cosmetic composition having excellent transparency without a thickener could be prepared.

In the present invention, the two-layer aqueous dispersion type cosmetic composition is characterized in that it is used by mixing so that the powder phase becomes a single phase dispersed in the aqueous phase by shaking.

In addition, in the present invention, when the aqueous dispersion-type cosmetic composition that has become the single phase is left, it is characterized in that it is separated into two phases of the upper aqueous layer and the lower powdery layer again.

In addition, in the present invention, it is characterized in that the metal ions of the ionic metal compound are present in combination with the negative charge on the powder surface in the powdery lower layer separated by standing.

The cosmetic composition of the present invention is used by mixing so that the powder phase can be dispersed in the water phase, and after use, if the cosmetic composition is left still, the upper aqueous phase layer and the lower powder layer are separated into two layers, before mixing the cosmetic composition. As the ionic metal compound existing in the water phase mixes with the powder phase, the negatively charged powder and the metal ions of the ionic metal compound are combined, and when re-established, the combined powder and metal ions sink to the bottom and the ionic metal compound Metal ions of the will be present in the lower powder layer. In conclusion, when the positively charged powder and the metal ion combinations are redispersed in the water phase, the dispersion is good by the repulsive force between the positive charges on the surface of the powders and the powders do not clump to prepare a transparent and clean two-layered water dispersion type cosmetic composition can do.

According to the experimental example of the present invention, in the case of a two-layer water-dispersion type cosmetic composition of the present invention comprising a water phase containing an ionic metal compound in purified water and a powder phase of an inorganic pigment (Examples 1 to 3), a two-layer formation , Deposition rate, caking, clarity after sedimentation, cooling and moisturizing, all showed excellent effects. On the other hand, if it does not contain an ionic metal compound (Comparative Example 1) or if the content of the ionic metal compound is less than or exceeded (Comparative Examples 2 and 3), a two-layered phase is formed, but is good in deposition rate, caking, and transparency. The results showed poor results, and when a thickener was included (Comparative Example 5-2) or an oil phase was included (Comparative Example 6-2), the two-layer itself could not be formed. In view of these results, in the two-layer aqueous dispersion type cosmetic composition, when the aqueous phase contains an ionic metal compound, a two-layer aqueous dispersion type cosmetic composition having excellent layer separation and transparency can be prepared and the rate of powder settling is controlled. In addition, the manufacturing process can be relatively simple, as well as a cooling and moisturizing feeling can be prepared in a two-layered water-dispersible cosmetic composition (see Experimental Example 1).

In the present invention, the water phase may include 65 to 99.9% by weight based on the total weight of the cosmetic composition and the powder phase may contain 0.1 to 35% by weight relative to the total weight of the cosmetic composition, preferably the aqueous phase is 80 to 95% by weight based on the total weight of the cosmetic composition %, the powder phase is characterized by containing 0.3 to 20% by weight based on the total weight of the cosmetic composition. When the content of the powder phase is exceeded, it is difficult to mix the composition.

In the present invention, the ionic metal compound is characterized in that it contains 0.1 to 3% by weight based on the total weight of the cosmetic composition. When the ionic metal compound exceeds the content, it is difficult to use because the sedimentation rate is fast and re-separation during use, and if less, it is difficult to remix due to the sediment caking.

In the present invention, the ionic metal compound may contain any ionic metal compound that is cationized with an anion in the aqueous phase, and is preferably characterized in that it is one or more selected from calcium chloride, magnesium chloride, potassium chloride and sodium chloride. Ionic metal compounds may be used alone or in combination.

In the present invention, the inorganic pigment may be a negatively charged powder, preferably selected from talc, mica, synthetic mica, sericite, silica, titanium dioxide, silicon-based powder, boron powder, inorganic pigment pigment and pearl luster pigment It is characterized by one or more. In addition, the powder may be water-repellent in the water-dispersion state, such as pure powder and silica, which are not surface-treated, but exhibits water repellency in the water-dispersion state, but the effect is insufficient or there is no problem in mixing with water. It may contain a surface-treated metal-containing compound, fatty acid, amino acid, laurolysine or lecithin, and contains at least one.

In the present invention, the water phase is characterized in that it further comprises a moisturizing agent, ethanol and other additives. The moisturizing agent may be a polyhydric alcohol such as glycerin or butylene glycol. The other additive may be a fragrance, a preservative, a water-soluble sunscreen, a pH adjusting agent, and a water-soluble extract, but is not limited thereto.

In the present invention, the cosmetic composition is characterized in that it is at least one formulation selected from the group consisting of foundation, Blemish Balm (BB), shadow, concealer, primer and tone-up base.

The water-dispersible cosmetic composition on the second layer of the present invention can be manufactured by directly packaging each of the water phase and the powder phase during manufacture, and may be packaged by mixing and dispersing the water phase and the powder phase.

As described above, in the two-layer water-dispersion cosmetic composition comprising an aqueous phase and a powder phase, by containing an ionic metal compound in the aqueous phase, it is possible to clean the layer separation and to significantly increase the transparency of the upper aqueous phase, various Not only can the precipitation speed of the powder of size be easily adjusted, but also the product can be easily manufactured. In addition, compared to a liquid product containing a conventional powder, it has a cooler feeling and a moisturizing feeling, and is less sticky at the finish of the makeup, so it is excellent in use.

1 is a state before the layers are separated (just after shaking).
2 is a state after the layers are separated (after politics).

Hereinafter, examples and experimental examples will be described in detail to specifically describe the present invention. However, the examples and experimental examples according to the present invention may be modified in various other forms, and the scope of the present invention should not be interpreted as being limited to the examples and experimental examples described below. Examples and experimental examples of the present invention are provided to more fully describe the present invention to those skilled in the art.

The inventors of the present invention consisted of two groups as shown in Table 1 below. According to the following examples, 65 to 99.9% of the water phase, 0.1 to 35% by weight of the composite powder, and the water of Group 1, including water, based on 0.1 to 3% by weight of the ionic metal compound, moisturizer, ethanol, and other additives It consists of.

ingredient Content (% by weight) Group 1 Awards 65~99.9 Group 2 Composite powder phase 0.1~35

Manufacturing methods according to embodiments of the present invention are provided for groups 1 to 2 above. The group 1 and the group 2 are made through the step of mixing / dispersing / dissolving each other, and the group 1 and the group 2 thus manufactured are manufactured through the step of filling a quantity in a package capable of stirring each other by moving up and down, group 1 Packaging may be performed by mixing and dispersing and group 2 outside the package.

Example  1-3 and Example  1-6: Cosmetic  Preparation of the composition

In the preparation of the cosmetic composition, Examples 1 to 3 and Comparative Examples 1 to 5 are made by mixing/dispersing/dissolving each group with the components and contents of Table 2 below, and were prepared by the manufacturing method provided by the present invention, and compared Example 6 was prepared by a general oil-in-water emulsification method.

division ingredient Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5-1 Comparative Example 5-2 Comparative Example 6-1 Comparative Example 6-2 Awards
(Group 1) Purified water 67.5 66.7 65.2 68.2 68.15 63.2 60.5 64.3 64.9 49.5 58.1 Moisturizer 5 5 5 5 5 5 5 5 5 5 5 ethanol 8 8 8 8 8 8 15 8 8 8 - Water thickener and stabilizer - - - - - - - 3.2 3.2 2 2 Ionic compounds 0.7 1.5 3 0 0.05 5 0.7 0.7 0.1 0.7 0.1 Other additives 3.8 3.8 3.8 3.8 3.8 3.8 3.8 3.8 3.8 3.8 3.8 Composite Powder Award
(Group 2) 15 15 15 15 15 15 15 15 15 15 15 Paid Surfactants - - - - - - - - - 4 4 oil - - - - - - - - - 10 10 Other oil-soluble substances - - - - - - - - - 2 2

In the water phase of Table 2, calcium chloride, magnesium chloride, and sodium chloride were used as an ionic compound, and mica, silica, titanium dioxide, iron oxide, and talc were used as a composite powder.

The manufacturing method provided by the present invention is as follows. (Corresponds to Examples 1 to 3 and Comparative Examples 1 to 5 above)

1) Group 1 is mixed/dispersed/dissolved separately in a mixer or a homo mill.

2) Group 2 is mixed/dispersed in a mixer or mill, a disperser, an atomizer, and the like.

3) Each group is manufactured through the step of filling a quantity in a package that can be stirred with each other by up-and-down movement, and the group 1 and group 2 may be packaged by mixing/dispersing them using a mixer outside the package.

Test example  1: Usability and condition evaluation

Usability and condition were evaluated for Examples 1 to 3 and Comparative Examples 1 to 6. Usability was assessed by 15 panelists between the ages of 23 and 40 with a 5 out of 5, and condition evaluation was based on visual evaluation. Usability was evaluated for cooling and moisturizing, and visual evaluation assessed whether it was two-layered, deposition rate, caking, and clarity after sedimentation. Here, the deposition rate showed the appropriateness of the rate of layer separation after remixing, and the caking was shaken 15 times at the same intensity after one week deposition, and the deposition level of the bottom surface was compared. The results are shown in Table 3 below. For reference, Comparative Examples 5-1 and 6-1 were excluded because they did not properly complete the product.

Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5-2 Comparative Example 6-2 Double-decker Y Y Y Y Y Y Y N N Deposition rate Good Good Good Very slow Slow Too fast Slow - - Caking none none none Very severe Severe none none - - Transparency after sedimentation Very good Very good Very good Bad usually Very good Bad - - Cooling feeling 5 5 5 5 5 4.5 5 4 2 Moisturizing 4.5 4.5 4.5 4.5 4.5 4.5 4 3.5 4.5

As a result, as shown in Table 3, in Comparative Examples 1 to 4, which are not included in the content of the composition presented in the present invention, a two-layered phase was formed, but it was not correct in terms of precipitation rate, caking, and transparency after precipitation. In addition, in Comparative Examples 5-2 and 6-2 having a pigment and a water phase, a two-layered phase was not exhibited, but a relatively good cooling feeling and moisturizing power were shown.

Claims (11)

A two-layered water-dispersible cosmetic composition, comprising a water phase containing an ionic metal compound in purified water and a powdery phase of an inorganic pigment, and not containing an oil, a surfactant, and a thickener. Composition.
delete According to claim 1, wherein the two-layer aqueous dispersion-type cosmetic composition is shaken, the two-layer aqueous dispersion-type cosmetic composition, characterized in that used to be mixed so that the powder phase is a single phase dispersed in the aqueous phase.
The two-layer water dispersion type cosmetic composition according to claim 3, wherein the aqueous dispersion type cosmetic composition that has become the single phase is separated into two layers of an upper aqueous layer and a lower powder layer.
The two-layer water dispersion type cosmetic composition according to claim 4, wherein metal ions of the ionic metal compound are present in combination with the negative charge on the powder surface in the powdery layer at the lower portion separated by standing.
According to claim 1, The aqueous phase is a two-layer aqueous dispersion type cosmetic composition, characterized in that it comprises 65 to 99.9% by weight based on the total weight of the cosmetic composition and the powder phase is 0.1 to 35% by weight based on the total weight of the cosmetic composition.
The method of claim 1, wherein the ionic metal compound is a two-layer aqueous dispersion type cosmetic composition characterized in that it comprises 0.1 to 3% by weight relative to the total weight of the aqueous phase.
The method of claim 1, wherein the ionic metal compound is a two-layer aqueous dispersion type cosmetic composition, characterized in that at least one selected from calcium chloride, magnesium chloride, potassium chloride and sodium chloride.
The method of claim 1, wherein the inorganic pigment is talc, mica, synthetic mica, sericite, silica, titanium dioxide, silicon-based powder, boron powder, inorganic pigment pigments and pearl luster pigments, one or more selected from the two-layer moisture Acid type cosmetic composition.
According to claim 1, wherein the water phase is a two-layer aqueous dispersion type cosmetic composition, characterized in that it further comprises a moisturizer, ethanol and other additives.
The cosmetic composition of claim 1, wherein the cosmetic composition is at least one formulation selected from the group consisting of foundation, blemish balm (BB), shadow, concealer, primer, and tone-up base.

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