KR101432188B1 - Non-aqueous Cosmetic Composition for Facial Cleansing - Google Patents

Abstract

The detergent composition of the present invention comprises 60 to 80% by weight of at least one polyhydric alcohol based on the total weight of the composition, 5 to 20% by weight of a fatty acid, And 5 to 10% by weight of a pH adjusting agent and 0.01 to 10% by weight of an oil-soluble substance, wherein the polyhydric alcohol is at least two selected from the group consisting of glycerin, butyleneglycol, polyethylene glycol and propylene glycol And polyethylene glycol having a molecular weight of 1450 or more as an essential component.

Description

[0001] Non-aqueous Cosmetic Composition for Facial Cleansing [

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detergent composition of a water-free formulation, and more specifically to a detergent composition of a water-free formulation.

Cleansing creams, cleansing lotions, cleansing gels and cleansing foam compositions, which are generally used as skin cleansers, contain a large amount of water because they use water as a solvent. However, water has the effect of easily oxidizing the oil-soluble substances and can not give various effects to the skin.

To solve these problems, a detergent composition of a water-free formulation has been proposed. The waterless formulation contains a high concentration of water-insoluble solvent to effectively remove oily impurities. However, there is a problem that the removal efficiency of the water-soluble substance is low and the feeling of use is poor, so that it can not be easily removed from the skin. In addition, such an anhydrous cleansing agent is required to remove waste materials in pores through a lukewarm water washing process.

To solve this problem, a heat detergent composition has been proposed. In order to generate heat from the cosmetic, vanillyl butyl ether has been used which reacts with vanillin receptors present in the skin to cause fever. However, there are many variations depending on the skin condition and condition of the consumer, so it is difficult to give the effect of substantial fever, and fever caused by such a substance is recognized as a stimulus, which may cause problems when used on the skin, particularly on the face.

Korean Patent No. 10-1029945 discloses a non-aqueous cleansing composition. The patent discloses a detergent composition that provides temporary skin warming sensation during foam cleaning to effectively clean waste materials such as sebum on the skin. Zeolite is used as a pyrogenic raw material and a surfactant in powder form is used as a detergent. However, zeolite reacts with water to generate heat, and a trace amount of water has a disadvantage that it can not sufficiently exert the effect of generating porous powder.

In order to solve the above-mentioned problem of the non-aqueous cleansing composition, the present invention is characterized in that, instead of water, by controlling the content ratio of the polyhydric alcohol used as a solvent and using polyethylene glycol having a specific molecular weight, And a heat-liberating cleanser composition which is capable of removing exfoliation by scrubbing formed naturally in the formulation.

It is an object of the present invention to provide a composition comprising 60 to 80% by weight of at least one polyhydric alcohol, 5 to 20% by weight of a fatty acid, 5 to 10% by weight of a pH adjusting agent and 0.01 to 10% by weight of an oil- A heat-sensitive detergent composition comprising two or more kinds selected from the group consisting of glycerin, butylene glycol, polyethylene glycol and propylene glycol, and having polyethylene glycol having a molecular weight of 1450 or more as an essential component Lt; / RTI >

Preferably, the fatty acid is at least one selected from the group consisting of lauric acid, myristic acid, citric acid, and palmitic acid.

The pH adjusting agent may be triethanolamine, and the useful substances may be at least one selected from the group consisting of vitamin retinol, ascorbic acid, tocopherol, and astaxanthin.

The detergent composition of the present invention has a uniform heat sensation and excellent washing power. In addition, the detergent composition of the present invention can impart a scrub effect without using an additional scrubbing agent, and thus can exfoliate. In addition, it is possible to form not only a liquid but also a solid type (blam) type by adjusting the amount of fatty acid and the amount of the pH controlling agent without increasing the amount of the polyhydric alcohol. In addition, after using the cleanser composition of the present invention, it is not necessary to carry out secondary cleansing to remove the oil component remaining on the skin, or a lukewarm water cleansing process that is necessary to remove the waste matter in the pores by opening the pores, It can open and remove wastes.

Figs. 1 to 4 are photographs showing the results of a cleaning power test when the cleaning composition of the present invention is used.

Hereinafter, the present invention will be described in more detail.

The waterless detergent composition of the present invention preferably comprises one or more polyhydric alcohols, one or more fatty acids, a pH adjusting agent and an oil-soluble substance.

The detergent composition may contain from 60 to 80% by weight of polyhydric alcohol, from 5 to 20% by weight of a fatty acid, from 5 to 10% by weight of a pH adjusting agent and from 0.01 to 10% by weight of an oil-soluble substance based on the total weight of the composition.

The polyhydric alcohol may be at least one selected from the group consisting of glycerin, 1,3-butylene glycol, propylene glycol, and polyethylene glycol having at least one hydroxyl group. Particularly in the present invention, the polyhydric alcohol component contains polyethylene glycol having a molecular weight of 1450 or more as an essential component. Polyethylene glycol is a polar material and has a very high affinity for water. The polyethylene may have various molecular weights depending on the degree of polymerization. In the present invention, polyethylene glycol having a molecular weight of 1450 or more can be preferably used. In particular, PEG-350 can be preferably used. Polyethylene glycol having the above molecular weight absorbs perspiration and various kinds of moisture present on the surface of the skin, hydrates and generates hydration heat. The properties of these materials are included as essential features in the present invention.

The polyhydric alcohol is preferably contained in an amount of 60 to 80% by weight based on the total weight of the composition. When it is included in the above-mentioned range, the effect of heat treatment upon application of the skin mentioned in the present invention can be seen, but when the content of polyhydric alcohol is more than 80% by weight, the formulation stability is lowered. Further, the present invention has a difference in fever depending on various combinations of polyhydric alcohols. Preferably, the PEG having a molecular weight of 1450 or more is contained in an amount of 5 to 15% by weight based on the total weight of the composition. Especially those having a molecular weight of about 20,000 PEG-350 can be preferably used.

Conventional general detergents contain a large amount of water, surfactant, oil and the like, but the detergent composition of the present invention does not contain water and can be stored stably for a long time in the detergent composition. Therefore, the present invention can include vitamins, retinol, ascorbic acid, tocopherol, astasanthin and the like as an oil-soluble substance. Since these oil-soluble substances are stably retained in the formulation even after storage for a long period of time, they can help to improve secondary skin after washing or after cleansing. The oil-soluble substance may be included in an amount of 0.01 to 10% by weight based on the total weight of the composition.

The fatty acid may be at least one selected from the group consisting of Lauric Acid, Myristic Acid, Citric Aicd and Palmitic Acid. The fatty acid preferably contains 5 to 20% by weight based on the total weight of the cosmetic composition. When the fatty acid content is less than 5% by weight, the effect as a detergent is hardly obtained. When the fatty acid content exceeds 20%, the content of the pH adjuster is increased, and the content of polyhydric alcohol is decreased. In addition, there is an inconvenience to use as a general cleanser due to increased hardness of the product.

As the pH adjusting agent, triethanolamine (TEA) may be preferably used. In general, NaOH and KOH are used as pH regulators in cosmetics, but they are soluble only in water. However, since the present invention is a water-free formulation which does not contain water, T.E.A, which is difficult to use a commonly used pH controlling agent and exists in a liquid phase, can be preferably used. The content of the pH adjusting agent is preferably 5 to 10% by weight. If it is less than 5.0% by weight, the effect of the detergent is difficult to obtain, and if it exceeds 10% by weight, the pH in the formulation may be increased to cause skin irritation.

According to the present invention, various formulations can be applied in a liquid phase, an incremental lotion phase, and a cream phase depending on the content of the fatty acid and the pH adjuster. Also, by controlling the content of polyethylene glycol having a molecular weight of 1450 or more, polyethylene glycol can be used as a scouring agent which exfoliates. Particularly, PEG-350 having a molecular weight of about 20,000 can be preferably used. PEG-350 is preferably included in an amount of 5 to 15% by weight. If it is used in an amount of less than 5% by weight, it is difficult to obtain a scrub effect, and when it is added in an amount of 15% or more, hardness is increased.

A method for producing the composition for anhydrous heat cleansing of the present invention is as follows.

First, all the polyhydric alcohols of two or more types are added and heated to 80 ° C. Next, the fatty acid is added and dissolved for 5 minutes with stirring. When the fatty acid is completely dissolved, the pH adjusting agent is added and stirred for 5 minutes. The stirred composition is cooled to 40 캜, and an oil-soluble component is added thereto, followed by stirring for 2 minutes. And then cooled to room temperature to prepare the cleaning composition of the present invention.

Hereinafter, the present invention will be described in more detail with reference to examples, but the scope of the present invention is not limited to or limited by the following examples.

Example 1, Example 2, Comparative Example 1 and Comparative Example 2

A detergent composition of Example 1, Example 2, Comparative Example 1 and Comparative Example 2 was prepared with the composition shown in Table 1 below.

Test Example 1: Sensibility evaluation by sensory evaluation

Twenty women aged 25 to 35 years were selected as panels and tested.

As a test method, a makeup base was applied to the surface of the face ball at a rate of 3 * 3 cm per day, and then the composition of Example 1 and Comparative Examples 1 to 3 was applied to the skin, followed by a massage for 1 minute, It was drained for one minute. The fever sensation was evaluated by the subjective evaluation of the tester. Subjective evaluation was carried out by checking the items of (A), (B), and (C) that there is no feeling of fever, and the results are shown in Table 2 below .

In order to maintain the objectivity of the test after the cleaning, the test was carried out at constant temperature / humidity (22 ° C, 45%) throughout the experiment. The testee adjusted the temperature and humidity for 20 minutes in the thermostat / . The sensation of heat in each case was measured, and the results are shown in Table 2.

A: Heat is strong (panel average response rate is over 90%)

B: Exothermic presence (panel average response rate 30% ~ 90%)

C: No feeling of heat (average response rate of panel is less than 30%)

Test Example 2: Detergency Test by Sensory Evaluation

Twenty women aged 25 to 35 years were selected as panels and tested.

As a test method, lipstick was applied to the back of the hand on a day / once basis to a width of 3 * 3 cm, and then the composition of Example 1 and Comparative Examples 1 to 3 was applied to the skin, followed by massage for 1 minute, I fell. The detergency was evaluated using a spectrophotometer Minolta cm-600 and expressed as a percentage.

In order to maintain the objectivity of the test, the entire life cycle of the experiment was carried out at constant temperature / humidity (22 ° C, 45%), and the subjects were subjected to temperature and humidity for 20 minutes in a constant temperature / The washing power of each case was measured, and the results are shown in Table 3. The photographs taken before and after the application of the detergent composition are shown in Fig. 1 (Example 1), Fig. 2 (Comparative Example 1), Fig. 3 (Comparative Example 2) and Fig. 4 (Comparative Example 3). In Figs. 1 to 4, the left side is a photograph before application of the cleanser composition, and the right side photograph is a photograph after application of a cleanser composition.

Examples 2 to 5, Comparative Example 4 and Comparative Example 5

A cleanser composition was prepared with the compositions shown in Table 4 below.

Test Example 3: Calorimetric test according to the type and content of polyhydric alcohol

Twenty women aged 25 to 35 years were selected as panels and tested.

As a test method, a makeup base was applied to the surface of the face ball at a rate of 3 * 3 cm per day, once, the compositions of Examples 3 to 6 and Comparative Examples 3 and 4 were applied to the skin, followed by massage for 1 minute, The water was poured for 1 minute to remove the makeup base and detergent.

In order to maintain the objectivity of the test, the whole process was carried out at constant temperature / humidity (22 ° C, 45%) and the subjects were subjected to temperature and humidity for 20 minutes in a constant temperature / The calorific value before and after application of the cleanser was measured using IRIS XP ^™ (DIGITAL IFRARED IMAGING SYSTEM).

The average value of 18 persons was calculated excluding the lowest / best result among 20 persons. The results are shown in Table 5 below.

Test Example 4: Skin safety test

In order to investigate the objective stimulation of the primary stimulus appearing on the skin, 15 subjects who had healthy skin under the age of 20 to 50 years were tested. After 20 μl of the detergent of Examples 2 to 5 and Comparative Examples 4 and 5 was dropped into the coagulation chamber, the volatile substances were volatilized for 1 hour. The patch was attached to the back of the subject, and the patch was removed after 24 hours and the reading was performed after 30 minutes. The test results are shown in Table 6 below.

The detergent composition of Comparative Example 4 contains a large amount of a surfactant, a scrub, and a zeolite. As a result of the test for the primary skin irritation, a light stimulus of 0.39 was observed in Comparative Example 4, but no stimulation was observed in Example 5. Thus, it was confirmed that the detergent composition of the present invention did not irritate the skin.

Test Example 5: Preservation test

Prepare a suspension of five bacteria (S. aureus, E. coli, E. coliacae, P. aeruginosa, and P. putida) and three molds (C. albicans, A. niger, P. luteum) in TST. 50 g of the detergent composition of Example 5 is inoculated with 106-7 CFU / g and 105-106 CFU / g of bacteria and mold, respectively. The inoculated samples are stored at room temperature and taken 1 g each on days 7, 14, 21, and 28, and diluted to 1/1000 with diluent. Bacteria and fungi in the diluted samples are cultured in TSA medium and PDCA medium, respectively, and the mortality rate against the initial inoculated bacteria is checked. The criterion is that the bacteria and mold should show 99.9% and 95% kill rate respectively in the 7th day test, and the microorganism should not proliferate on the 14th and subsequent tests.

The detergent composition of the present invention was confirmed to have a buoyant force even when no preservative was contained.

Claims (4)

As the anhydrous exothermic detergent composition,
Wherein the composition comprises 60 to 80% by weight of a polyhydric alcohol based on the total weight of the composition, 5 to 20% by weight of a fatty acid, 5 to 10% by weight of a pH adjusting agent and 0.01 to 10%
Wherein the polyhydric alcohol is composed of at least two kinds selected from the group consisting of glycerin, butylene glycol, polyethylene glycol and propylene glycol, and contains polyethylene glycol having a molecular weight of 1450 or more as an essential component,
Wherein the oil-soluble material is at least one selected from the group consisting of vitamin, retinol, ascorbic acid, tocopherol, and astaxanthin. The anhydrous exfoliating detergent composition according to claim 1, wherein the fatty acid is at least one selected from the group consisting of lauric acid, myristic acid, citric acid and palmitic acid. The anhydrous exfoliating detergent composition of claim 1, wherein the pH adjusting agent is triethanolamine. delete

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