LEAVE-ON TYPE COSMETIC COMPOSITION FOR FACIAL MASK SHEET HAVING SELF-FOAMING FUNCTION

Abstract

The present invention relates to a cosmetic composition for a leave-on type mask sheet including a fluorinated compound and saponin as a self-foaming agent. The cosmetic composition for a leave-on type mask sheet includes a fluorinated compound and saponin as a self-foaming agent, and thus can provide a cleansing effect, such as an effect of removing sebum or waste. In addition, since the cosmetic composition includes saponin instead of a chemical surfactant, it can reduce side effects, such as skin irritation, alleviate inconvenience of washing-off after using the mask sheet, and improve a moisturizing effect by virtue of elimination of the washing-off procedure.

Claims

1. A cosmetic composition for a leave-on type mask sheet comprising a fluorinated compound and saponin as a self-foaming agent.

2. The cosmetic composition for a leave-on type mask sheet according to claim 1, which comprises no chemical surfactant.

3. The cosmetic composition for a leave-on type mask sheet according to claim 1, which is for combined use of cleansing, moisturizing, wrinkle-improving and whitening.

4. The cosmetic composition for a leave-on type mask sheet according to claim 1, which comprises 0.01-20 wt % of a fluorinated compound, 0.01-20 wt % of saponin, 1-20 wt % of a moisturizing agent, 0.01-5 wt % of a gelling agent and 55-90 wt % of purified water.

5. The cosmetic composition for a leave-on type mask sheet according to claim 1, wherein the fluorinated compound is at least one selected from the group consisting of methyl perfluorobutyl ether, methyl perfluoroisobutyl ether, ethyl perfluorobutyl ether, ethyl perflruoroisobutyl ether and isopentane.

6. The cosmetic composition for a leave-on type mask sheet according to claim 4, wherein the moisturizing agent is at least one selected from the group consisting of 1,3-butylene glycol, glycerin, dipropylene glycol, isopentyl glycol, propanediol, 1,2-hexanediol, caprylyl glycol, ethylhexyl glycerin, polyglycerin-3, betain and sorbitol.

7. The cosmetic composition for a leave-on type mask sheet according to claim 4, wherein the gelling agent is at least one selected from the group consisting of acrylic gelling agents, such as acrylate copolymers, acrylate/C10-30 alkyl acrylate crosspolymers or sodium acrylate, gum-like gelling agents, such as xanthan gum or cellulose gum, and carbomers.

8. The cosmetic composition for a leave-on type mask sheet according to claim 1, wherein the mask sheet is made of cotton, a non-woven web, rayon-containing material, cellulose material or a hydrogel material.

Description

BRIEF DESCRIPTION OF DRAWINGS

[0041] FIG. 1 is a photographic view illustrating actual use of the composition according to an embodiment of the present invention, after a mask sheet is impregnated with the composition.

[0042] FIG. 2 is a photographic view illustrating the composition according to an embodiment of the present invention.

DETAILED DESCRIPTION

[0043] Exemplary embodiments now will be described more fully hereinafter. The present invention may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth therein.

Example 1: Preparation of Cosmetic Composition for Leave-on Type Mask Sheet

[0044] A cosmetic composition was prepared according to the composition as shown in the following Table 1.

[0045] Disodium EDTA, glycerin and a preservative were added to purified water and agitated/dissolved therein. After checking complete dissolution, polyacrylamide was introduced while carrying out agitation. Agitation was carried out for 10 minutes until polyacrylamide was dissolved completely. After checking that polyacrylamide was dissolved without aggregation, a fragrance was introduced thereto and agitated therein. After carrying out agitation for 3 minutes, the resultant mixture was cooled to 25 C. Herein, it is essentially required to check that the temperature was decreased to 25 C. Then, air bubbles in the content were removed through a deaeration process. After that, ethyl perfluorobutyl ether and ethyl perfluoroisobutyl ether were introduced while carrying out agitation. After checking that emulsion was formed, saponin dissolved in a separate container was added to the emulsion and the resultant emulsion was agitated thoroughly for 3 minutes. Herein, agitation was carried out merely by using paddles, not a homo-mixer.

[0046] Herein, saponin was obtained by dipping shells of Sapindus mukorossi GAERTNER fruits in water to extract the materials in the shells and carrying out filtering through a filter to obtain extract of Sapindus mukorossi GAERTNER fruits. Then, the extract was dried to remove purified water, thereby providing powdery saponin.

[0047] After that, acrylate copolymer dissolved in a separate container was introduced and agitation was carried out for 3 minutes. After carrying out agitation sufficiently, a neutralizing agent was introduced and agitation was carried out sufficiently for 3 minutes.

[0048] When a non-woven web was impregnated with the composition obtained according to the composition as shown in Table 1, foam was generated.

TABLE-US-00001 TABLE 1 Example 1 No. Ingredients Amount (wt %) 1 Purified water to 100 2 Disodium EDTA 0.02 3 Glycerin 5 4 1,2-hexanediol/ethylhexyl glycerin 2.0/0.04 5 Polyacrylamide 1 6 Fragrance 0.05 7 Ethyl perfluorobutyl ether, Ethyl 5 perfluoroisobutyl ether 8 Saponin 1 9 Acrylate copolymer 2 10 Triethanolamine 0.2

[0049] In Table 1, Ingredient 2 is a metal ion chelating agent, Ingredients 3 and 4 are moisturizing agents, Ingredient 5 is an emulsifying agent/gelling agent, Ingredient 7 is a fluorinated compound, Ingredient 9 is a gelling agent, and Ingredient 10 is a neutralizing agent.

Comparative Example 1: Preparation of Cosmetic Composition Including Chemical Surfactant for Cleansing Type Mask Sheet

[0050] The following Table 2 shows the ingredients contained in a cosmetic composition including a chemical surfactant for a cleansing type mask sheet. The composition was prepared as follows.

[0051] Disodium EDTA, glycerin and a preservative were added to purified water and agitated/dissolved therein. After checking complete dissolution, polyacrylamide was introduced while carrying out agitation. Agitation was carried out for 10 minutes until polyacrylamide was dissolved completely. After checking that polyacrylamide was dissolved without aggregation, a fragrance was introduced thereto and agitated therein. After carrying out agitation for 3 minutes, the resultant mixture was cooled to 25 C. Herein, it is essentially required to check that the temperature was decreased to 25 C. Then, air bubbles in the content were removed through a deaeration process. After that, ethyl perfluorobutyl ether and ethyl perfluoroisobutyl ether were introduced while carrying out agitation. After checking that emulsion was formed, preliminarily weighed sodium cocoyl apple aminoacid and potassium cocoyl glycinate were introduced. Herein, agitation was carried out merely by using paddles, not a homo-mixer. After that, acrylate copolymer dissolved in a separate container was introduced and agitation was carried out for 3 minutes. After carrying out agitation sufficiently, a neutralizing agent was introduced and agitation was carried out sufficiently for 3 minutes.

[0052] When a non-woven web was impregnated with the composition obtained according to the composition as shown in Table 2, foam was generated. After foam was generated sufficiently, it should be washed off.

TABLE-US-00002 TABLE 2 Comparative Example 1 No. Ingredients Amount (wt %) 1 Purified water to 100 2 Disodium EDTA 0.02 3 Glycerin 5 4 1,2-hexanediol/ethylhexyl glycerin 2.0/0.04 5 Polyacrylamide 1 6 Ethyl perfluorobutyl ether, Ethyl 5 perfluoroisobutyl ether 7 Sodium cocoyl apple aminoacid 3 8 Potassium cocoyl glycinate 5 9 Acrylate copolymer 2 10 Triethanolamine 0.2

[0053] In Table 2, Ingredient 2 is a metal ion chelating agent, Ingredients 3 and 4 are moisturizing agents, Ingredient 5 is an emulsifying agent/gelling agent, Ingredient 6 is a fluorinated compound, Ingredients 7 and 8 are chemical surfactants, Ingredient 9 is a gelling agent, and Ingredient 10 is a neutralizing agent.

Test Example 1: Functional Test for Cleansing, Moisturizing and Emollient Effects

[0054] Example 1 and Comparative Example 1 were prepared and used for a test for twenty (20) healthy male/female subjects.

[0055] The test was carried out by allowing the subjects to use each of the non-woven webs impregnated with Example 1 and Comparative Example 1 for 15 minutes and judging feelings of use, such as sebum improvement and moisturizing and skin emollient effects. The results are shown in the following Table 3 (Example 1) and Table 4 (Comparative Example 1). The non-woven webs used for the test were made of a cupra material. Evaluation was carried out according to the following criteria.

[0056] 5: Excellent, 4: good, 3: satisfactory, 2: unsatisfactory, 1: poor.

TABLE-US-00003 TABLE 3 Male A B C D E F G H I J Sebum 4 5 4 4 5 5 4 4 5 4 improvement Moisturizing 5 4 5 5 4 4 5 4 5 5 effect Emollient 4 5 4 3 5 4 5 3 4 4 effect Female K L M N O P Q R S T Sebum 5 4 4 3 4 5 4 4 3 4 improvement Moisturizing 4 5 5 5 4 5 5 5 4 5 effect Emollient 5 5 5 4 4 3 5 5 5 4 effect

TABLE-US-00004 TABLE 4 Male A B C D E F G H I J Sebum 4 5 5 4 5 5 4 4 4 4 improvement Moisturizing 3 2 4 3 3 2 3 2 5 3 effect Emollient 2 2 2 3 3 3 2 3 2 2 effect Female K L M N O P Q R S T Sebum 4 4 4 4 4 5 4 3 5 4 improvement Moisturizing 2 2 3 3 3 4 2 2 3 4 effect Emollient 2 3 3 3 2 4 2 2 3 3 effect

[0057] The functional test results from the overall comparison of Example 1 (Table 3) with Comparative Example 1 (Table 4) are shown in the following Table 5.

TABLE-US-00005 TABLE 5 Comparative Example 1 Example 1 Male Sebum improvement 4.4 4.4 Moisturizing effect 4.6 3 Emollient effect 4.1 2.4 Female Sebum improvement 4 4.1 Moisturizing effect 4.7 2.8 Emollient effect 4.5 2.7

[0058] As can be seen from the results, in both male and female subjects, Example 1 provides improved moisturizing and skin emollient effects, which are insufficient in the case of Comparative Example 1 according to the related art, while maintaining a sebum-improving effect (skin cleansing effect), which is a unique function of a self-foaming mask sheet.

Test Example 2: Skin Irritation Test

[0059] Example 1 and Comparative Example 1 were prepared and used for a test for ten (10) healthy male/female subjects.

[0060] The test was carried out by allowing the subjects to use each of the non-woven webs impregnated with Example 1 and Comparative Example 1 for 15 minutes and judging irritation and pruritus. The results are shown in the following Table 6. The non-woven webs used for the test were made of a cupra material. Evaluation was carried out according to the following criteria.

[0061] 4: Strong irritation, 3: medium irritation, 2: light irritation, 1: little irritation, 0: no irritation.

TABLE-US-00006 TABLE 6 Example 1 A B C D E F G H I J Average Irritation 0 0 0 0 0 1 0 0 0 1 0.2 Pruritus 1 1 1 0 0 1 0 1 1 1 0.7 Comp. Ex. 1 A B C D E F G H I J Average Irritation 2 3 2 3 2 3 3 2 4 4 2.8 Pruritus 3 3 2 3 1 2 4 2 4 3 2.7

[0062] As can be seen from the results of Table 6, Example 1 according to the present invention causes little irritation and pruritus, while Comparative Example 1 causes more irritation and pruritus as compared to the present invention. It is thought that Comparative Example 1 includes a chemical surfactant, and thus the chemical surfactant remaining on the skin causes irritation and pruritus when it is not washed off.

Test Example 3: Skin Wrinkle-Improving Test

[0063] The mask sheets according to Example 2 (Table 7) and Comparative Example 2 (Table 8) were used to carry out a panel test for skin wrinkle-improving effects.

[0064] First, thirty (30) healthy females in their 35-50 ages were divided into two groups each of which had 15 females. The first group and the second group were allowed to apply the mask sheet according to Example 2 and the mask sheet according to Comparative Example 2, respectively, to the face portion once every other day for two months. After two months, a degree of improvement in skin wrinkles was evaluated through the survey of subjects. With reference to skin wrinkle improvement and elasticity enhancement, evaluation was performed in three levels of no improvement, slight improvement and significant improvement. The results are shown in the following Table 7.

TABLE-US-00007 TABLE 7 Example 2 No. Ingredients Amount (wt %) 1 Purified water to 100 2 Disodium EDTA 0.02 3 Glycerin 5 4 1,2-hexanediol/ethylhexyl glycerin 2.0/0.04 5 Polyacrylamide 1 6 Fragrance 0.05 7 Ethyl perfluorobutyl ether, Ethyl 5 perfluoroisobutyl ether 8 Saponin 1 9 Acrylate copolymer 2 10 Triethanolamine 0.2 11 Adenosine 0.04

[0065] In Table 7, Ingredient 2 is a metal ion chelating agent, Ingredients 3 and 4 are moisturizing agents, Ingredient 5 is an emulsifying agent/gelling agent, Ingredient 7 is a fluorinated compound, Ingredient 9 is a gelling agent, ingredient 10 is a neutralizing agent, and Ingredient 11 is a wrinkle-improving agent.

TABLE-US-00008 TABLE 8 Comparative Example 2 No. Ingredients Amount (wt %) 1 Purified water to 100 2 Disodium EDTA 0.02 3 Glycerin 5 4 1,2-hexanediol/ethylhexyl glycerin 2.0/0.04 5 Polyacrylamide 1 6 Ethyl perfluorobutyl ether, Ethyl 5 perfluoroisobutyl ether 7 Sodium cocoyl apple aminoacid 3 8 Potassium cocoyl glycinate 5 9 Acrylate copolymer 2 10 Triethanolamine 0.2 11 Adenosine 0.04

[0066] In Table 8, Ingredient 2 is a metal ion chelating agent, Ingredients 3 and 4 are moisturizing agents, Ingredient 5 is an emulsifying agent/gelling agent, Ingredient 6 is a fluorinated compound, Ingredients 7 and 8 are chemical surfactants, Ingredient 9 is a gelling agent, Ingredient 10 is a neutralizing agent, and Ingredient 11 is a wrinkle-improving agent.

TABLE-US-00009 TABLE 9 No Slight Significant improvement improvement improvement Example 2 1 4 10 Comparative 13 2 0 Example 2

[0067] As can be seen from the results of Table 9, many subjects felt a significantly improved effect in the case of Example 2 according to the present invention. On the contrary, in the case of Comparative Example 2, more subjects felt no skin wrinkle improvement.

Test Example 4: Skin Whitening Effect Test

[0068] The mask sheets according to Example 3 (Table 10) and Comparative Example 3 (Table 11) were used to carry out a panel test for skin whitening effects.

[0069] First, thirty (30) healthy females in their 35-50 ages were divided into two groups each of which had 15 females. The first group and the second group were allowed to apply a portion of the mask sheet according to Example 3 and a portion of the mask sheet according to Comparative Example 3, respectively, to the upper arm once a day for one month. Before the test, pigmentation was made in each subject by using a UV irradiator. The whitening effect was evaluated by observing the skin color by the naked eyes. The results are shown in the following Table 12.

TABLE-US-00010 TABLE 10 Example 3 No. Ingredients Amount (wt %) 1 Purified water to 100 2 Disodium EDTA 0.02 3 Glycerin 5 4 1,2-hexanediol/ethylhexyl glycerin 2.0/0.04 5 Polyacrylamide 1 6 Fragrance 0.05 7 Ethyl perfluorobutyl ether, Ethyl 5 perfluoroisobutyl ether 8 Saponin 1 9 Acrylate copolymer 2 10 Triethanolamine 0.2 11 Niacin amide 2.0

[0070] In Table 10, Ingredient 2 is a metal ion chelating agent, Ingredients 3 and 4 are moisturizing agents, Ingredient 5 is an emulsifying agent/gelling agent, Ingredient 7 is a fluorinated compound, Ingredient 9 is a gelling agent, ingredient 10 is a neutralizing agent, and Ingredient 11 is a skin whitening functional agent.

TABLE-US-00011 TABLE 11 Comparative Example 3 No. Ingredients Amount (wt %) 1 Purified water to 100 2 Disodium EDTA 0.02 3 Glycerin 5 4 1,2-hexanediol/ethylhexyl glycerin 2.0/0.04 5 Polyacrylamide 1 6 Ethyl perfluorobutyl ether, Ethyl 5 perfluoroisobutyl ether 7 Sodium cocoyl apple aminoacid 3 8 Potassium cocoyl glycinate 5 9 Acrylate copolymer 2 10 Triethanolamine 0.2 11 Niacin amide 2.0

[0071] In Table 11, Ingredient 2 is a metal ion chelating agent, Ingredients 3 and 4 are moisturizing agents, Ingredient 5 is an emulsifying agent/gelling agent, Ingredient 6 is a fluorinated compound, Ingredients 7 and 8 are chemical surfactants, Ingredient 9 is a gelling agent, Ingredient 10 is a neutralizing agent, and Ingredient 11 is a skin whitening functional agent.

TABLE-US-00012 TABLE 12 No Slight Significant improvement improvement improvement Example 3 1 5 9 Comparative 11 3 0 Example 3

[0072] As can be seen from the results of Table 12, many subjects felt a significantly improved effect in the case of Example 3 according to the present invention. On the contrary, in the case of Comparative Example 3, more subjects felt no skin wrinkle improvement.

INDUSTRIAL APPLICABILITY

[0073] As described hereinabove, the cosmetic composition for a leave-on type mask sheet according to the present invention includes saponin instead of a chemical surfactant, and thus can reduce side effects, such as skin irritation, alleviate inconvenience of washing-off after using the mask sheet, improve a moisturizing effect by virtue of elimination of the washing-off procedure, and provide a cleansing effect, such as an effect of removing skin sebum or waste and wrinkle-improving and skin-whitening effects.