KR20190026994A - Water-dispersible type cosmetic composition having two layer - Google Patents

Abstract

The present invention relates to a two-layered aqueous dispersion type cosmetic composition characterized by comprising a powder phase composed of inorganic pigments and an aqueous phase comprising ionic metal compounds in purified water. According to the two-layered aqueous dispersion type cosmetic composition of the present invention, by comprising the ionic metal compounds in the aqueous phase, the layers can be separated clearly; transparency of the upper layer can be significantly increased; a precipitation rate of powders of various sizes can be easily controlled; and a product can be easily produced. In addition, compared to liquid products containing conventional powders, the product comprising the composition of the present invention has excellent cooling feeling and moisturizing feeling, and is less sticky on finishing make-up, thereby providing excellent feeling of use.

Description

A two-layered water-dispersible cosmetic composition having two layers,

The present invention relates to a two-layered aqueous dispersion type cosmetic composition, and more particularly to a two-layered aqueous dispersion type cosmetic composition which comprises a powder phase composed of an aqueous phase and an inorganic pigment containing an ionic metal compound in purified water Layer aqueous dispersion type cosmetic composition.

A conventional cosmetic composition having a two-layer structure is a composition comprising a two-layered structure composed of an aqueous phase and a polar oil or a liquid phase having a different specific gravity such as Korean Patent Laid-Open No. 10-2009-0045567 as disclosed in Korean Patent No. 10-1123137 Most were. The two-layered cosmetic composition of the present invention has a problem in that it can not contain important matters such as powder and color or cosmetic correction.

There are several patents applying the powder, but each has the cumbersome process and limitations as mentioned below. Specifically, Korean Patent No. 10-1144469 relates to an oil-free makeup cosmetic composition, which is similar to the present invention in a portion where oil is not used, but does not contain a metal ion as in the present invention, Therefore, it is stiff and dry in relative moisture and spreadability. Korean Patent No. 10-0933551 also relates to a two-layered cosmetic composition using the difference in specific gravity between powder layers constituted of a water layer and a powder component. However, it is constructed only considering the specific gravity difference, and kaolin, which is difficult to disperse powder, It is necessary to add a level of aluminum chlorohydrate which is difficult to control to control the sedimentation rate. Therefore, a separate roll mill process is required to disperse these powders evenly, which complicates the production. Korean Patent Laid-Open No. 10-2015-006206 has a powder layer and a water-dispersed layer similar to the present invention. However, it is troublesome to perform double treatment of the surface to prevent caking after sedimentation, There is a disadvantage that it is difficult to use insoluble powder. Korean Patent Laid-Open No. 10-2016-0041111 also relates to a three-layered foundation cosmetic composition, wherein the first and second layers are divided into a water layer and a powder layer, but it is necessary to change the surface modification to an amphiphilic property for separation and sedimentation .

The present inventors have made intensive researches to overcome the problems of the prior arts as a result, and as a result, the present inventors have found that a two-layered aqueous dispersion type cosmetic composition comprises a powder phase comprising an aqueous and an inorganic pigment containing an ionic metal compound in purified water In the case of a two-layered aqueous dispersion type cosmetic composition, it is possible to prepare a two-layered aqueous dispersion type cosmetic composition excellent in layer separation and transparency by containing an ionic metal compound in the aqueous phase and can control the rate at which the powder sinks, Layered aqueous dispersion type cosmetic composition which is not only relatively simple but also excellent in cooling feeling and moisturizing property can be produced. Thus, the present invention has been 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

Accordingly, it is a main object of the present invention to provide a two-layered aqueous dispersion type cosmetic composition excellent in layer separation and transparency, capable of controlling the rate at which the powder is settled and having a relatively simple manufacturing process, It is an object of the present invention to provide a two-layered aqueous dispersion type cosmetic composition.

According to one aspect of the present invention, there is provided a two-layered aqueous dispersion type cosmetic composition comprising a two-layered aqueous dispersion type cosmetic composition characterized by comprising a powder phase comprising an aqueous and an inorganic pigment containing an ionic metal compound in purified water .

Conventionally, in the case of a two-layer cosmetic composition composed of a water phase and a powder phase, a powder phase having negative charge (-) when dispersed and dissolved in water of an aqueous phase is not well settled at the time of standing, It was difficult to redisperse the powders in water during use because the opaque, soaked powders in the powder layer would clump together and clump together (because of the caking phenomenon). However, in the case where the ionic metal compound is contained in the aqueous phase as in the present invention, when the ionic metal compound dissolved in the aqueous phase is dissolved in water, the metal ion having a positive charge of the ionic metal compound bonds with the negatively charged powder, The layer separation is excellent and the layer of the water layer is increased in transparency and the powder of the submerged powder layer is not agglomerated due to the repulsive force between the positive charges on the surface, Further, it has been confirmed that the precipitation rate of the powder can be controlled according to the content of the ionic metal compound, and also the moisturizing effect and the coolness are excellent, thereby completing the present invention.

Specifically, the present invention forms a two-layered content by depositing a powder phase on a water phase at a constant rate. In general, the powder in the water phase is free sedimented. Therefore, it is separated into two layers naturally. However, it is important to keep the separation clean, to set the sedimentation speed of powder particles of different sizes and shapes, to make the powder phase of the precipitated powder layer mix well without caking, It is difficult to make it available.

Conventional two-layered products are prepared by separating the powder and the water based on difference in specific gravity, compatibility and polarity difference. When separating into a powder layer and a water layer, the powder is coated or the powder is dispersed in oil to make a difference in specific gravity, Using a polyol, a specific gravity difference is created to form a two-layer structure. In this case, there is a disadvantage that all powders must be pretreated or confined to a specific feeling of use, and the production is complicated.

In the present invention, the ionic metal compound is dissolved in the water phase to ionize the powder, and the charge is controlled on the surface of the powder to adjust the specific gravity to give a two-layered phase. This method can be applied to all insoluble powders, and it is easy to manufacture by simply adding powder and shaking to the water phase. It is easy to control the precipitation rate with only ionic metal compound and small amount of polyol, It is possible to adjust the volume between the layers using low raw materials, and it is easy to impart the characteristics of the product. In addition, it is highly transparent because it does not require the use of separate surfactants, thickeners, and long polyols with hydrophobic residues.

The term 'two-layered' as used herein 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 separated into the water phase layer on the upper side and the powder layer on the lower side.

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

In the present invention, the two-layered aqueous dispersion type cosmetic composition is characterized in that it does not contain oils, surfactants and thickeners.

Two-layered cosmetic compositions were prepared using the two-layered cosmetic composition of the prior art using the non-mixing nature of water and polar oils. However, in the case of such two-layer cosmetic compositions, the same color as the powdery powder, There is a problem. In order to solve such a problem, the present invention does not include oil, and since it does not include oil, it does not include a surfactant that may affect transparency, and transparency can be further increased. In addition, the two-layered cosmetic composition that does not contain an oil contains an aging agent to stabilize the contents. When such an aging agent is included, a cosmetic composition having difficulty in forming a two-layered form or having a very low transparency is produced, , A two-layered aqueous dispersion type cosmetic composition excellent in transparency without containing any thickening agent could be prepared.

In the present invention, the two-layered aqueous dispersion type cosmetic composition is mixed and used so that the powder phase is shaken to be a single phase dispersed in the aqueous phase.

In addition, in the present invention, when the single-phase aqueous dispersion type cosmetic composition is allowed to stand, it is separated into two layers, namely, an upper water layer and a lower powder layer.

Further, in the present invention, the metal ion of the ionic metal compound is present in a state of binding to the negative charge on the surface of the powder in the lower powder layer separated and settled.

The cosmetic composition of the present invention is used in such a manner that the powder phase can be dispersed in the aqueous phase, and when the cosmetic composition is left to stand after use, the upper aqueous layer and the lower powder layer are separated into two layers, The ionic metal compound existing in the water phase is mixed with the powder phase and the powder having a negative charge is combined with the metal ion of the ionic metal compound and when the powder is again mixed with the powder, Metal ions are present in the lower powder layer. As a result, when the positively-charged powder and the metal ion-bonded particles are redispersed in the water phase, the powder is well dispersed by the repulsive force between the positive charges on the surface of the powders, and the powder is not aggregated so that a transparent and clean two- can do.

According to the Experimental Example of the present invention, in the case of the two-layered aqueous dispersion type cosmetic composition of the present invention (Examples 1 to 3) comprising a powder phase composed of an aqueous and an inorganic pigment containing an ionic metal compound in purified water , Deposition rate, caking, transparency after settling, cooling and humidity. On the contrary, when the ionic metal compound is not contained (Comparative Example 1) or when the content of the ionic metal compound is less than or greater than that of the ionic metal compound (Comparative Examples 2 and 3), the two-phase phase is formed but the deposition rate, caking, (Comparative Example 5-2) and an oil phase was contained (Comparative Example 6-2), the two-layered phase itself could not be formed. As a result, in the two-layered aqueous dispersion type cosmetic composition, when the ionic metal compound is contained in the aqueous phase, a two-layered aqueous dispersion type cosmetic composition having excellent layer separation and transparency can be produced and the rate at which the powder is settled can be controlled And can produce a two-layered aqueous dispersion type cosmetic composition having a relatively simple manufacturing process and excellent cooling feeling and moisturizing properties (see Experimental Example 1).

In the present invention, the aqueous phase may contain 65 to 99.9% by weight based on the total weight of the cosmetic composition, and the powder phase may include 0.1 to 35% by weight based on the total weight of the cosmetic composition. Preferably, %, And the powder phase comprises 0.3 to 20% by weight based on the total weight of the cosmetic composition. When the content in the powder phase is exceeded, it is difficult to mix the composition.

In the present invention, the ionic metal compound is contained in an amount of 0.1 to 3% by weight based on the total weight of the cosmetic composition. When the content of the ionic metal compound exceeds the above range, the precipitation speed becomes faster and re-separation occurs during use. Therefore, it is difficult to use it, and when it is less than that, re-mixing is difficult due to caking of the deposit.

In the present invention, the ionic metal compound may contain any ionic metal compound which is cationized with an anion in the aqueous phase, and is preferably at least one selected from calcium chloride, magnesium chloride, potassium chloride and sodium chloride, The 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, silicone based powder, boron powder, inorganic color pigment and pearlescent pigment And at least one kind thereof. The powder may be water-repellent in a water-dispersed state such as pure powder and silica not surface-treated, but exhibits water-repellency in a water-dispersed state. However, when the effect is insufficient or there is no problem in mixing with water, And may contain a metal compound, a fatty acid, an amino acid, a lauroyl lysine or a lecithin, and may contain at least one or more of them.

In the present invention, the water phase further comprises a moisturizing agent, ethanol and other additives. The humectant may be a polyhydric alcohol such as glycerin, butylene glycol and the like. The other additives may be, but are not limited to, fragrances, preservatives, water-soluble ultraviolet screening agents, pH adjusting agents and water-soluble extracts.

In the present invention, the cosmetic composition is characterized by being at least one selected from the group consisting of foundation, Blemish Balm (BB), shadow, concealer, primer and toning base.

The two-layered aqueous dispersion type cosmetic composition of the present invention can be manufactured by directly packaging each of the water phase and the powder phase at the time of manufacture, and the water phase and the powder phase may be mixed and dispersed for packaging.

As described above, in the two-layered aqueous dispersion type cosmetic composition comprising an aqueous phase and a powder phase, by containing an ionic metal compound in the aqueous phase, the layer separation can be made clear and the transparency of the upper aqueous phase layer can be remarkably increased, It is possible to easily adjust the settling speed of the powder of the size and to easily manufacture the product. In addition, compared to a liquid product containing a conventional powder, it has excellent cool feeling and moisturizing feeling, and is less sticky to cosmetic finish, so that the feeling of use is excellent.

Figure 1 shows a state before the layers are separated (immediately after shaking).
Figure 2 shows the state after the layers are separated (after standing).

Hereinafter, the present invention will be described in detail with reference to Examples and Experimental Examples. However, the embodiments and experimental examples according to the present invention can be modified into various other forms, and the scope of the present invention should not be construed as being limited to the above-described embodiments and examples. The embodiments and experimental examples of the present invention are provided to enable those skilled in the art to more fully understand the present invention.

The present inventors constructed two groups as shown in the composition in Table 1 below. According to the following examples, it is preferable that the aqueous phase contains 65 to 99.9 weight of the water phase and 0.1 to 35 weight% of the composite powder and 0.1 to 3 weight% of the ionic metal compound including water in the water phase of group 1, .

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

A manufacturing method according to embodiments of the present invention is provided for the groups 1 to 2 described above. The group 1 and the group 2 are formed by mixing / dispersing / dissolving each other. The group 1 and the group 2 thus prepared are packed in a package capable of stirring each other by moving up and down. And group 2 may be mixed / dispersed outside the package and then packaged.

Example  1-3 and Example  1-6: Cosmetics  Preparation of composition

Examples 1 to 3 and Comparative Examples 1 to 5 in the production of a cosmetic composition were prepared by mixing / dispersing / dissolving each group in the components and contents shown in the following Table 2, manufactured by the manufacturing method provided in the present invention, Example 6 was prepared by a conventional 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 builder and stabilizer - - - - - - - 3.2 3.2 2 2 Ionic compound 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 phase
(Group 2) 15 15 15 15 15 15 15 15 15 15 15 Paid Surfactants - - - - - - - - - 4 4 oil - - - - - - - - - 10 10 Other usable substances - - - - - - - - - 2 2

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

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

1) Group 1 is mixed / dispersed / dissolved separately in a mixer, homomix or the like.

2) Mix / disperse Group 2 in a mixer or mill, disperser, atomizer, etc.

3) Each group is packed in a package capable of agitating each other by moving up and down, and Group 1 and Group 2 may be packaged by mixing / dispersing them using a mixer outside the package.

Test Example  1: Usability and Condition Assessment

Examples 1 to 3 and Comparative Examples 1 to 6 were evaluated for their usability status. The usability test was performed on 15 panelists between the ages of 23 and 40 with a score of 5 out of 10. Usability was evaluated for cooling sensation and moisturizing property, and visual evaluation was evaluated for two-layer state, deposition rate, caking, and transparency after sedimentation. The rate of sedimentation was found to be appropriate for the rate of bed separation after remixing, and the caking was compared to the bottom sedimentation level after shaking 15 times to the same strength after one week of sedimentation. The results are shown in Table 3 below. By way of reference, Comparative Examples 5-1 and 6-1 were omitted because they did not achieve perfection as a 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 Two-tier 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 Poor usually Very good Poor - - Cooling sensation 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 were not included in the composition of the present invention, the two-layered phase was formed, but it was not correct in the transparent drawing after the precipitation rate, caking, and precipitation. In addition, Comparative Examples 5-2 and 6-2, which previously had pigment and water-based coatings, did not exhibit the two-layer image, but showed relatively good cooling and moisturizing power.

Claims (11)

A two-layered aqueous dispersion type cosmetic composition according to claim 1, wherein the two-layered aqueous dispersion type cosmetic composition comprises a powder phase comprising an aqueous and an inorganic pigment containing an ionic metal compound in purified water.
The two-layered aqueous dispersion type cosmetic composition according to claim 1, wherein the two-layered aqueous dispersion type cosmetic composition does not contain an oil, a surfactant and a thickening agent.
The two-layered aqueous dispersion type cosmetic composition according to claim 1, wherein the two-layered aqueous dispersion type cosmetic composition is shaken and mixed so that the powder phase is dispersed in the aqueous phase so as to be a single phase.
4. The two-layered aqueous dispersion type cosmetic composition according to claim 3, wherein when the single-phase aqueous dispersion type cosmetic composition is allowed to stand, the two-layered aqueous dispersion type cosmetic composition is separated into a two-layered structure consisting of an upper water layer and a lower powder layer.
5. The two-layered aqueous dispersion type cosmetic composition according to claim 4, wherein the metal ion of the ionic metal compound exists in association with the negative charge on the surface of the powder on the lower powder layer separated by standing.
The two-layered aqueous dispersion type cosmetic composition according to claim 1, wherein the aqueous phase comprises 65 to 99.9% by weight based on the total weight of the cosmetic composition, and the powder phase comprises 0.1 to 35% by weight based on the total weight of the cosmetic composition.
The two-layered aqueous dispersion type cosmetic composition according to claim 1, wherein the ionic metal compound is contained in an amount of 0.1 to 3 wt% based on the total weight of the aqueous phase.
The two-layered aqueous dispersion type cosmetic composition according to claim 1, wherein the ionic metal compound is at least one selected from calcium chloride, magnesium chloride, potassium chloride and sodium chloride.
The method according to claim 1, wherein the inorganic pigment is at least one selected from talc, mica, synthetic mica, cericite, silica, titanium dioxide, silicone-based powder, boron powder, inorganic dye pigment, Type cosmetic composition.
The two-layered aqueous dispersion type cosmetic composition according to claim 1, wherein the aqueous phase further comprises a moisturizing agent, ethanol and other additives.
The two-layered aqueous dispersion type cosmetic composition according to 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 toning base.

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