KR101970638B1 - Cosmetic composition for mask pack - Google Patents

Abstract

The present invention relates to a cosmetic composition for a mask pack, which is used by being impregnated in various types of fabrics in the form of a general nonwoven fabric and, more particularly, to a cosmetic composition for a mask pack, which comprises polyurethane and a thickening agent. The cosmetic composition for a mask pack comprising polyurethane and the thickening agent according to the present invention has superior moisture retainability and applicability to a cosmetic composition that does not contain polyurethane, and also ensures excellent applicability due to elasticity.

Description

[0001] Cosmetic composition for mask pack [0002]

The present invention relates to a cosmetic composition for a mask pack, more particularly, to a cosmetic composition containing a polyurethane which is used by impregnating a fabric such as a general nonwoven fabric with elasticity, and is superior to a cosmetic composition containing no polyurethane, And a cosmetic composition for a mask pack having excellent elasticity.

The skin is protected from the outside environment, and at the same time, the skin moisturizing environment must be maintained to make the skin feel dry and less tingling, and it is visually smooth and healthy.

The human skin protects the body and nerve endings are located where you can feel when you are stimulated from the outside. It is also responsible for chemical and physical reactions such as body temperature control and vitamin synthesis.

Skin is divided into epidermis, dermis, subcutaneous tissue. The dermis is more hydrated than the epidermis and provides nutrients to the epidermis. When nutrients and moisture are lacking in the epidermis, it supplies moisture and nutrition to the dermis, so skin protection and moisture should be supplied so that the skin layer does not lose moisture from the outside. If the water supply is not smooth, skin dryness occurs, and the binding force of keratinocyte is decreased, thereby nourishing the moisture balance of epidermis including dermis and dermis. In order to reduce these effects, it is necessary to protect the skin and provide sufficient moisture and nutrition to maintain healthy skin. It is essential to keep skin moisturized, especially since it takes a lot of weight to determine the aesthetic beauty of the skin.

If skin moisturization is insufficient, most of the skin is dry. However, skin dryness is not the result of unconditional reduction of skin moisture content. Skin dryness has been reported to improve dryness when applied with moisturizer from time to time when the skin feels dry. To improve the drying phenomenon, many cosmetic compositions including various moisturizing agents have been disclosed to keep skin moisturization from being reduced, but they have a problem that it is difficult to keep them constantly. In order to solve these problems, the present invention has been completed.

The present invention relates to a cosmetic composition for a mask pack containing a polyurethane having elasticity for improving skin dryness. The present invention provides a cosmetic composition for a mask pack, which protects the skin surface and has elasticity, And to provide a cosmetic composition which can be used as a cosmetic composition.

It is another object of the present invention to provide a cosmetic composition for a mask pack which provides a moisturizing effect, a water supply effect, a resilience improving effect and a skin protection effect on the skin.

In order to accomplish the above object, the present invention provides a cosmetic composition for a mask pack comprising a polyurethane and a thickening agent.

Wherein the cosmetic composition comprises 0.01 to 1.00% by weight of polyurethane and 0.01 to 1.00% by weight of a thickener based on the total weight of the composition.

Among the cosmetic compositions of the present invention, the polyurethane is a copolymer of polyethylene glycol, polyethylene glycol ether, and hexamethylene diisocyanate monomers, and polyethylene glycol, polyethylene glycol ether, hexamethylene diisocyanate, And a polyol having a hydroxyl group (-OH) is used as a polyether, and is hydrophilic in one side and hydrophilic in the other side with a urethane bond as a center, All are available.

The thickening agent in the cosmetic composition of the present invention is composed of at least one of carbomer, xanthan gum and hydroxyethylcellulose, or a combination of two or more thereof.

The cosmetic composition may further contain, if necessary, 0.1 to 0.5% by weight of a neutralizing agent based on the total weight of the composition.

If necessary, the cosmetic composition may contain 0.1 to 0.5% by weight of at least one kind of skin cosmetic functional ingredients such as wrinkle improving, whitening, water supply, nutrition supply, elasticity improvement and skin firming .

The cosmetic composition of the present invention contains a polyurethane and a thickening agent, thereby capturing stickiness of the thickening agent and forming a film on the skin, thereby providing an excellent effect for maintaining skin moisture.

Fig. 1 shows the result of measurement of moisture evaporation amount for a certain period of time by dividing the cosmetic composition of the present invention into Examples (1, 2, 3 and 4) and Comparative Examples (2, 3 and 4).

The present invention relates to a cosmetic composition for a mask pack comprising a polyurethane and a thickener.

The polyurethane and the thickening agent contained in the cosmetic composition for a mask pack of the present invention comprise 0.01 to 1.00 wt% of polyurethane and 0.01 to 1.00 wt% of a thickener based on the total weight of the composition, and the mixing ratio of the polyurethane and the thickener is, Urethane: 0.01 to 1.00: 0.01 to 1.00 as a thickening agent.

The polyurethane in the cosmetic composition for a mask pack of the present invention is a copolymer of polyethylene glycol, polyethylene glycol ether, and hexamethylene diisocyanate monomers, wherein polyethylene glycol, polyethylene glycol ether is hexamethylene diisocyanate And are connected to each other at both ends thereof.

The thickening agent in the cosmetic composition for a mask pack of the present invention is composed of at least one of xanthan gum, hydroxyethyl cellulose and carbomer, or a combination of two or more thereof.

The cosmetic composition of the present invention may further contain 0.1 to 0.5% by weight of a neutralizing agent, if necessary, based on the total weight of the composition.

In the cosmetic composition according to the present invention, at least one kind of skin cosmetic functional ingredients such as wrinkle improving, whitening, water supply, nutrition supply, elasticity improvement, % ≪ / RTI > by weight.

Hereinafter, examples and comparative examples will be described in detail to facilitate understanding of the present invention. However, the examples and comparative 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 following examples and comparative examples. Embodiments and comparative examples of the present invention are provided to enable a person skilled in the art to more easily understand the present invention.

[Preparation of Examples and Comparative Examples]

The present invention is based on the composition of the following Table 1 for cosmetic compositions (Examples) and compositions (Comparative Examples) that do not contain polyurethane.

Raw material
(Unit: wt%) Example 1 Example 2 Example 3 Example 4 Comparative Example 2 Comparative Example 3 Comparative Example 4 Purified water Balance Balance Balance Balance Balance Balance Balance Carbomer - 0.10 - - 0.10 - - corrector - 0.10 - - 0.10 - - Hydroxyethylcellulose - - 0.70 - - 0.70 - Xanthan gum - - - 0.30 - - 0.30 Polyurethane 0.80 0.80 0.80 0.80 - - - glycerin 10.00 10.00 10.00 10.00 10.00 10.00 10.00 antiseptic 0.2 0.2 0.2 0.2 0.2 0.2 0.2

ADEKANOL GT-700 (ADEKA), ADEKANOL GT-730 (ADEKA), and Avalure ™ Flex-6 CC polymer (Lubrizol)

Carbopol®980 polymer, Carbopol®940 polymer, Carbopol®981 polymer, Carbopol®941 polymer (Lubrizol)

3) Hydroxyethyl cellulose Ingredient (Manufacturer): Natrosol ™ 250 HR PC, Natrosol ™ 250 HR PC (ASHLAND)

4) xanthan gum Name of raw material (Manufacturer): Keltrol®Kelco)

5) Glycerin Ingredients (Manufacturer): Moon K Glycerin, USP / FCC (P & G Chemicals)

[Comparison of Water Evaporation in Examples and Comparative Examples]

In order to examine how the addition of polyurethane reduces water evaporation in the present invention, the following method was used.

In order to test the moisture evaporation amount of the formulation, the same amount of the above-mentioned Examples (1, 2, 3, 4) and Comparative Examples (2, 3, 4) were kept in a constant temperature chiller at 25 ° C, Were measured at the same time intervals and measured for 3 days. The results are shown in Fig.

1, the cosmetic composition containing only polyurethane among the constituents of the cosmetic composition had the lowest evaporation amount of moisture, and the cosmetic composition not containing polyurethane contained more moisture than the cosmetic composition containing polyurethane Respectively. As a result, it can be seen that polyurethane slows the formation of a film on the skin and causes a rapid decrease in water loss, and at the same time, it also acts to reduce the water evaporation phenomenon.

[Comparison of Tensile Strength between Examples and Comparative Examples]

In order to examine how the addition of polyurethane increases the elasticity in the present invention, the following method was used.

Example 2 and Comparative Example 2 were subjected to tensile strength measurement using Brookfield (CT3 Texture Analyzer) under the same conditions by impregnating the same nonwoven fabric with the same amount, and the average value was calculated.

* Nonwoven fabric sample size: 10 * 50 mm

* Content of liquid: 2g each

Measurement conditions: elongation speed (100 mm / min), load cell 500 kgf

Measurement sample Example 2 Comparative Example 2 1 time 3.71 N / inch 3.52 N / inch Episode 2 3.70 N / inch 3.46 N / inch 3rd time 3.64 N / inch 3.48 N / inch 4 times 3.72 N / inch 3.50 N / inch Average 3.6925 N / inch 3.49 N / inch

As shown in Table 2, it can be seen that the tensile strength of the polyurethane-containing Example 2 is higher than that of the polyurethane-containing Comparative Example 2. Further, the elasticity is a value obtained by dividing the tensile strength by the strain rate It can be seen that Example 2 is more elastic than Example 2.

As a result, it is shown that Example 2 containing polyurethane is a composition having elasticity.

[Comparison of feelings in Examples and Comparative Examples]

The sensory evaluation was performed on the samples of Examples (1, 2, 3, 4) and Comparative Examples (2, 3, 4).

(1, 2, 3, 4) and Comparative Examples (2, 3, 4) for 1 sample were subjected to sensory evaluation in a total of 20 persons / 20- to 40-year-old women.

-Evaluation standard

(Very bad: 1 / bad: 2 / slightly bad: 3 / normal: 4 / slightly good: 5 / good: 6 /

Item Example 1 Example 2 Example 3 Example 4 Comparative Example 2 Comparative Example 3 Comparative Example 4 Moisture 6.7 6.4 6.4 6.5 5.2 5.0 5.2 Stickiness 6.2 5.8 5.4 5.0 4.1 3.7 3.9 No shine 5.7 5.4 5.4 5.2 4.6 4.7 4.2

As shown in Table 3, the results of the sensory evaluation showed that the moisture and shine were not significantly different between the examples and the comparative examples, but the composition containing the polyurethane helped to improve the moisture feeling and shine, and the stickiness was about 18% Can be confirmed.

Claims (5)

1. A cosmetic composition for a mask pack comprising a polyurethane and a thickener, wherein the composition comprises 0.01 to 1.00 wt% of polyurethane and 0.01 to 1.00 wt% of a thickener based on the total weight of the composition,
The cosmetic composition for a mask pack according to any one of claims 1 to 3, wherein the thickening agent is a combination of at least one of carbomer and hydroxyethylcellulose, and is impregnated with a nonwoven fabric. The method according to claim 1,
Polyurethane is a copolymer of polyethylene glycol, polyethylene glycol ether, and hexamethylene diisocyanate monomers. Polyethylene glycol and polyethylene glycol ether are substituted on both ends with hexamethylene diisocyanate interposed therebetween. Wherein the cosmetic composition is a copolymer that is linked to the cosmetic composition. delete The method according to claim 1,
Wherein the mixing ratio of the polyurethane and the thickener is 0.01 to 1.00: 0.01 to 1.00 as a polyurethane: thickener based on the weight of the cosmetic composition.
The method according to claim 1,
The cosmetic composition for mask packs according to any one of claims 1 to 3, further comprising a skin conditioner containing at least one kind of cosmetic ingredients for improving wrinkles, whitening, moisture supply, nutrient supply, elasticity improvement and skin firming.

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