KR102034102B1 - Multi phase cosmetic composition comprising transparent layer with enhancing injection stability and excellent spread property to the skin - Google Patents

Abstract

The present invention relates to a skin care cosmetic composition comprising a separate transparent phase, and more particularly, a skin care cosmetic composition having a visually differentiated appearance, including an aqueous transparent layer, and having excellent filling stability and skin adhesion or smooth spreadability. It is about.

Description

Multi phase cosmetic composition comprising transparent layer with enhancing injection stability and excellent spread property to the skin}

The present invention relates to a skin care cosmetic composition comprising a separate transparent phase, and more particularly, a skin care cosmetic composition having a visually differentiated appearance, including an aqueous transparent layer, and having excellent filling stability and skin adhesion or smooth spreadability. It is about.

Skincare cosmetics generally consist of an emulsion phase of water-in-oil, oil-in-water formulations. Due to the oil-in-water content of the oil-in-water and oil-in-water formulations, the application of the oil to the skin shows a poor applicability.

Conventionally, in order to increase applicability, the adhesion of cosmetics is increased by increasing the content of silicone or silicone elastomer in the oily components, or by increasing the content of organic polymers, inorganic thickeners or organic-inorganic hybrid thickeners that act as thickeners. . However, when the wax content in the oil phase component is increased, the density of the wax formulation in which the crystals in the oil phase component are formed increases with respect to the total volume, resulting in poor fluidity, which causes the spread of skincare cosmetics to the skin. There is a disadvantage in that the ease of use, the feeling of use becomes heavy, and the flowability deteriorates. In the case of a thickener, there is a problem in that the similarity to the action to reduce the spread.

On the other hand, the technology of the multi-layered composition using the water-phase transparent layer already exists, but the composition prepared by the existing method, when filling the oil phase content expansion phenomenon due to the osmotic pressure between the water-phase transparent layer and the oil phase composition occurs, deteriorating long-term storage quality There was a problem.

Korean Patent Publication No. 2010-0028355

In order to provide a cosmetic composition having excellent skin adhesion, the present inventors have attempted to develop a multi-layered cosmetic composition, and when a part of a raw material corresponding to an aqueous phase is prepared in a transparent layer, the cosmetic composition having excellent skin adhesion with a differentiated appearance It has been found that can be provided. In addition, by using a natural polymer to prevent mass transfer due to the osmotic pressure between the water-phase transparent layer and the oil phase composition, the design of the filling layer pattern, etc. during the storage due to the interference between different phases does not occur, it can last long. Discovered to complete the present invention.

Accordingly, an object of the present invention is to provide a cosmetic composition including a transparent layer which is excellent in skin adhesiveness and excellent in feeling, and which can maintain filling quality in the long term.

In order to achieve the above object, the present invention provides a multi-phase emulsified cosmetic composition comprising an aqueous phase thickener in the aqueous phase transparent layer.

The composition of the present invention can provide a differentiated appearance by including a transparent layer of the water phase, not only to induce a good feeling, but also can improve the feeling of use by excellent skin adhesion. In addition, the filled pattern can be kept significantly stable compared to the existing products.

1 shows a multi-layered structure of a composition according to the present invention.
Figure 2 shows the results confirmed after maintaining the degree of expansion of the inner phase supported on the transparent gel with and without hydroxyethyl cellulose gum at 45 degrees for 2 weeks.

The composition of the present invention is a multi-layered cosmetic composition comprising a transparent layer, and particularly relates to a water-in-oil type, or a cosmetic composition having a composition formed only of oil and wax, specifically, the outer wound is an aqueous phase transparent layer, the inner phase is a water-in-oil type or oil and It consists of the contents having a composition formed only of wax. A schematic multilayer structure of the composition of the present invention is shown in FIG.

The transparent layer of the present invention is an aqueous phase transparent layer, which is a part of the raw material corresponding to the aqueous phase is prepared separately from the transparent layer. In the case of the aqueous phase transparent layer, since it shows transparent properties irrespective of the type or content of the polyol, the type of the aqueous phase thickener to be used is not particularly limited, but the aqueous phase thickener used is 0.2 to 2% by weight based on the total weight of the transparent layer composition. It is included in the amount of%. This is because when the water content of the main thickener is less than 0.2% by weight, the elasticity is reduced and the shape is collapsed, and when the water phase thickener content is more than 2% by weight, the viscosity is increased so that the formulation is not easily removed. Acceptable waterborne thickeners include carbomer, poloxamer, xanthan gum, carrageenan gum, locust bean gum, gellan gum and the like. In addition, when using a carbomer, the content is preferably included in an amount of preferably 0.20 to 0.50% by weight, more preferably 0.30% by weight based on the total weight of the transparent layer composition.

Among them, the carbomer thickener has the highest viscosity with a small amount, but has a low yield stress, and has a difficulty in preventing osmotic phenomenon between inner wounds and trauma due to lower water content than natural polymers. In order to prevent such interference between internal wounds and traumas, it is more preferable to use natural polymer having excellent water content as an aqueous phase thickener. Therefore, it is preferable to use hydroxy ethyl cellulose gum, especially cetyl hydroxy ethyl cellulose, as water-assisted thickener in addition to the above water-based thickener. The amount of the natural thickener used is included in an amount of 0.05 to 1.0% by weight, preferably 0.35% based on the total weight of the transparent layer composition. When applied in less than 0.05% by weight does not have a water content enough to control the mutual interference between the water gel and water-in-oil content, when used in excess of 1.0% by weight, the adhesive strength is strong, which indicates a feeling that can not be used as a product.

In the cosmetic composition of the present invention, the transparent layer is contained in an amount of 15.00 to 80.00% by weight based on the total weight of the composition, and a feeling of satisfaction and a cosmetic effect is appropriate, and preferably it is contained in an amount of 45.00% by weight. When applied in less than 15% by weight, it is difficult to secure the filling design, and when filled in excess of 80% by weight, the usability of the emulsified composition to be filled is impaired.

The cosmetic composition of the present invention may be preferably provided as a skin care cosmetic composition, and the formulation thereof is not particularly limited, but may be formulated in a cosmetic form such as a cream or a mask pack.

Hereinafter, the present invention will be described in more detail with reference to Examples and Test Examples, but the present invention is not limited only to these examples.

[Test Example 1] Preparation of the water-phase transparent layer according to the composition of the water-phase portion

In order to determine the transparency of the composition according to the type, content of the polyol to be used, the composition was prepared in the composition of Table 1 below. At this time, the hardness was measured by the Sun Scientific Rheometer CR-500DX 1 day after the preparation of the sample 40g at room temperature (25 ℃) to measure the entry strength of 20.0mm with a maximum load of 20.0kg. The measurement results are shown in Table 1 below.

One 2 3 4 Purified water 99.80 87.70 75.65 75.60 Butylene Glycol 0 7.0 14.0 14.0 glycerin 0 5.0 10.0 10.0 Carbomer 0.20 0.20 0.20 0.20 Hardness 7 8 8 7 transparency Transparency

Looking at Table 1, although the hardness of the composition varies depending on the type and content of butylene glycol and glycerin, which are polyols used in the composition, it can be seen that the compositions are all transparent.

[Test Example 2] Preparation of the water-phase transparent layer according to the content of the thickener

To prepare the composition of the composition of Table 2 to measure the transparency and hardness of the water-phase transparent layer according to the content of the thickener. At this time, the hardness was measured by the Sun Scientific Rheometer CR-500DX 1 day after the preparation of the sample 40g at room temperature (25 ℃) to measure the entry strength of 20.0mm with a maximum load of 20.0kg. The measurement results are shown in Table 2 below.

One 2 3 4 Purified water 74.80 74.70 74.60 74.50 Butylene Glycol 25.00 25.00 25.00 25.00 Carbomer 0.20 0.30 0.40 0.50 Hardness 7 10 17 30 transparency Transparency

As can be seen in Table 2, when the content of the carbomer, which is a water-based thickener, does not affect transparency, it can be seen that there is a significant difference in hardness.

[Test Example 3] Injury-trauma interference phenomenon according to the type of natural thickener

In order to compare the anti-interference effect according to the type of natural thickener, a two-layer cream composition filled with 2 ml of cream was prepared using a syringe on a transparent gel. The composition of the cream (inner phase) used at this time is shown in Table 3 below, and the composition of the transparent layer (outer box) is shown in Table 4 below. Natural thickeners tested as auxiliary thickeners were carrageenan gum, agar gum, locust bean gum, hydroxyethyl cellulose gum and cellulose gum, and were added to the transparent water gel in an amount of 0.35% by weight to confirm the transparency and anti-interference interference efficacy.

Raw material name Furtherance Refined beeswax One Tribehenin 0.5 Fiji-10 dimethicone 2 Cetylethylhexanoate 4 Dimethicone 20 Cyclopentasiloxane / Pig-10 Dimethicone / Disteadimonium Hectorite 2 Purified water To 100 Butylene Glycol 5.00 Disodium ID 0.05 Phenoxyethanol q.s.

Purified water To 100 Disodium ID 0.05 Carbomer 0.3 Butylene Glycol 14 glycerin 10 Potassium hydroxide 0.3 One of carrageenan gum, agar gum, locust bean gum, hydroxyethyl cellulose gum and cellulose gum 0.35

Comparative results of the composition prepared as described above are shown in Table 5 below.

Sword types transparency Feeling Manufacturing stability Internal interference prevention effect Carrageenan Sword medium Prize Ha Ha Baby sword medium Prize Ha Ha Locust Bean Sword slander slander Medium Ha Hydroxyethylcellulose gum Prize slander Prize Prize Cellulose gum Ha medium slander medium

In the case of carrageenan gum and agar gum derived from seaweed, the hardness of the contents increased immediately after manufacturing, and it was not applicable as an item for manufacturing stability. The anti-interference interference effect was relatively good but was excluded from the selection. In the case of hydroxyethyl cellulose modified cellulose, it was confirmed that the appearance was also transparent while effectively preventing the interference between the inner phase and the outer wound.

[Reference Example 1] Preparation of Examples 1 to 6 and Comparative Examples 1 to 6 which are external wound transparent water gels

To the composition of Table 6 (composition of the transparent layer), Examples 1 to 6 using carbomer, poloxamer, xanthan gum, carrageenan gum, locust bean gum or gellan gum as main thickener and having hydroxyethyl cellulose as an auxiliary surfactant Prepared. In addition, Comparative Examples 1 to 6 were prepared in the composition shown in Table 7.

division number Raw material name Example 1
(Transparent layer) Example 2
(Transparent layer) Example 3
(Transparent layer) Example 4
(Transparent layer) Example 5
(Transparent layer) Example 6
(Transparent layer) solvent One Purified water To 100 To 100 To 100 To 100 To 100 To 100 Emollient 2 Disodium ID 0.5 0.5 0.5 0.5 0.5 0.5 State thickener 3 Carbomer 0.35 - - - - - Poloxamer - 1.5 - - - - Xanthan Gum - - 2.0 - - - Carrageenan Sword - - - 1.5 - - Locust Bean Sword - - - - 1.5 - Gellan gum - - - - - One Emollient 4 Butylene Glycol 4.00 4.00 4.00 4.00 4.00 4.00 Skin Conditioning Agent 5 glycerin 20.00 20.00 20.00 20.00 20.00 20.00 pH regulator 6 Potassium
Hydroxide 0.35 0 0 0 0 0 Auxiliary thickener 7 Hydroxy
Ethyl cellulose 0.35 0.35 0.35 0.35 0.35 0.35 Emollient 8 Phenoxyethanol 0.5 0.5 0.5 0.5 0.5 0.5

division number Raw material name Comparative Example 1
(Transparent layer) Comparative Example 2
(Transparent layer) Comparative Example 3
(Transparent layer) Comparative Example 4
(Transparent layer) Comparative Example 5
(Transparent layer) Comparative Example 6
(Transparent layer) solvent One Purified water To 100 To 100 To 100 To 100 To 100 To 100 Emollient 2 Disodium ID 0.5 0.5 0.5 0.5 0.5 0.5 State thickener 3 Carbomer 0.35 - - - - - Poloxamer - 1.5 - - - - Xanthan Gum - - 2.2 - - - Carrageenan Sword - - - 1.5 - - Locust Bean Sword - - - - 1.5 - Gellan gum - - - - - One Emollient 4 Butylene Glycol 4.00 4.00 4.00 4.00 4.00 4.00 Skin Conditioning Agent 5 glycerin 20.00 20.00 20.00 20.00 20.00 20.00 pH regulator 6 Potassium
Hydroxide 0.35 0 0 0 0 0 Auxiliary thickener 7 Hydroxy
Ethyl cellulose 0 0 0 0 0 0 Emollient 8 Phenoxyethanol 0.5 0.5 0.5 0.5 0.5 0.5

<Method of manufacturing a transparent transparent gel>

1) Mix the water phase components 1 to 6 of Table 6 or Table 7 uniformly at 50 ° C.

2) Disperse 7-8 in said 1).

REFERENCE EXAMPLE 2 Preparation of a multilayered composition comprising an inner phase cream phase and a transparent layer

To prepare the inner phase cream phase in the composition of Table 8, and mixed with each of the above Examples 1 to 6 or Comparative Examples 1 to 6 to prepare a multi-phase cream composition containing a transparent water gel.

division number Raw material name content Emollient One Refined beeswax 1.00 2 Tribehenin 0.5 Emulsifier 3 PG-10 Dimethicone 2.00 Emollient 4 Cetylethylhexanoate 4.00 Skin Conditioning Agent 5 Dimethicone 20.00 Thickener 6 Cyclopentasiloxane / Pig-10 Dimethicone / Disteadimonium Hectorite 2.0 solvent 7 Purified water To 100 Emollient 8 Butylene Glycol 10 Thickener 9 Distealdimonium hectorite 0.50 Emollient 11 Butylene Glycol 5.00 Ion Blocker 12 Disodium ID 0.06 Preservative 13 Phenoxyethanol 0.05 system 100.000

<Method for producing inner phase cream and multilayer compositions>

1) Add the oily ingredients 1 to 6 of Table 8 and mix uniformly at 60 ℃.

2) Mix water phase components 7-13 with uniform stirring, and stir at 50 ° C.

3) Slowly pour the mixture of the aqueous phase components 7-13 into the mixture of the oil phase components 1-6 to make a base cream.

4) The base cream is added to the outer transparent gel prepared in Reference Example 1 using a filling needle to obtain a transparent water gel composition including a cream composition having a desired design.

Test Example 4 Check the Stability of the Composition

Based on the cream compositions using Examples 1 to 6 and Comparative Examples 1 to 6 prepared above, the expansion of the inner phase supported on a transparent gel with and without hydroxyethyl cellulose gum was maintained at 45 ° C. for 2 weeks. The state of the composition was observed, of which the results for Example 1 and Comparative Example 1 are shown in FIG. 2.

As shown in FIG. 2, in the case of the transparent gel (Examples 1 to 6) to which hydroxyethyl cellulose was added, the first filled design was maintained, while those of Comparative Examples 1 to 6 without hydroxyethyl cellulose were added. In the contents, the inner cream may interfere with the transparent gel and the initial design is deformed, and the transparency of the transparent gel is also reduced.

On the other hand, in the case of Examples 2 to 6, although the feeling of use of the contents is lower than that of Example 1, it was confirmed that the interference phenomenon of the inner cream is effectively controlled. On the contrary, in Comparative Examples 2 to 6, the phenomenon in which the inner phase expands by absorbing the moisture of the outer transparent transparent gel by osmotic pressure occurs, and the design collapse phenomenon occurs.

Claims (8)

A cosmetic composition of the multilayered emulsion type comprising an aqueous phase transparent layer,
The aqueous transparent layer is included in an amount of 45.00 to 80.00% by weight based on the total weight of the cosmetic composition,
At least one member selected from the group consisting of carbomer, poloxamer, xanthan gum, carrageenan gum, locust bean gum and gellan gum as an aqueous phase thickener; And hydroxy ethyl cellulose as an aqueous phase thickener. The cosmetic composition according to claim 1, wherein the water thickener is contained in an amount of 0.20 to 2.0% by weight based on the total weight of the transparent layer composition. The cosmetic composition according to claim 1, wherein the water thickener is a carbomer. The cosmetic composition according to claim 1, wherein the water-based auxiliary thickener is cetyl hydroxy ethylcellulose. The cosmetic composition according to claim 4, wherein the water-based auxiliary thickener is contained in an amount of 0.05 to 1.0% by weight based on the total content of the transparent layer composition. The cosmetic composition of claim 1, wherein the transparent layer is included in an amount of 45.00 wt% based on the total weight of the composition. The cosmetic composition according to claim 1, wherein the composition is water-in-oil type. The cosmetic composition according to claim 1, wherein the composition is a cosmetic composition for skin care.

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