KR20170106579A

KR20170106579A - Anti-dust cosmetic composition

Info

Publication number: KR20170106579A
Application number: KR1020160029557A
Authority: KR
Inventors: 김수지; 이준배; 장지희; 장은선; 김연준; 윤명석; 유권종
Original assignee: 코스맥스 주식회사
Priority date: 2016-03-11
Filing date: 2016-03-11
Publication date: 2017-09-21
Also published as: KR102000059B1; WO2017155156A1

Abstract

The present invention relates to an anti-dust cosmetic composition and, more specifically, to a cosmetic composition which prevents fine dust containing pollutants such as smoke from factories, car exhaust, etc. from touching the skin by containing anion donors providing negative electric charge (-) as effective components. In addition, the cosmetic composition blocks skin stimulation caused by skin adsorption of fine dust, thereby preventing skin troubles and protecting skin to be clean.

Description

Anti-dust cosmetic composition [0002]

The present invention relates to a cosmetic composition for preventing fine dust adsorption, and more particularly to a cosmetic composition for preventing fine dust adsorption, which comprises an ingredient (Anion donors) for providing negative charge (-) as an active ingredient, To prevent skin contact with the skin.

Fine dust, which is attracting much attention with the yellow dust in spring every year, is divided into fine dust (PM ₁₀ ) with diameter less than 10μm and super fine dust (PM _2.5 ) with diameter less than 2.5μm. These fine dusts are mixed with air pollutants such as automobile exhaust gas, heavy metals such as copper and lead which are generated in the smoke of the factory and combustion in the living environment, Skin and respiratory disorders.

According to the National Institute of Environmental Research (NIER) in 2013, the fine dust particles in the metropolitan area account for about 74% of total pollutants (nitrate, sulphate and organic carbon) (PM ₁₀ ), followed by organic carbon (19.4%), sulfate (17.2%), metal oxide (14.9%), nitrate (14.6%) and elemental carbon (6.4% . Fine dust composed of these pollutants can cause various diseases just by touching the body. Especially, the most common diseases are allergic conjunctivitis, atopy and hair loss. These diseases can be caused by skin contact with contaminants contained in fine dust. Fine dusts are much smaller than normal dusts (about 20μm on average) and are hard to be visually confirmed, which is about one-twentieth of the skin pores, so they can not be blocked from the skin and easily penetrate into the pores. Once absorbed, fine dusts cause various chemical stimuli to the skin, adversely affect keratinocyte and lipid membrane, thereby reducing skin immunity and accelerating skin aging phenomenon such as acne induction, skin dryness, wrinkle increase and pigmentation. Therefore, if the skin can not be precisely blocked or the infiltrated fine dust can not be removed cleanly, the inflammation reaction in the pores causes the skin trouble.

One of the ways to solve skin problems caused by such fine dust is to wash the skin frequently and to apply cosmetics to keep the skin clean. Conventional fine dust-related cosmetic products are mainly made up of various cleansing products, which are designed to clean fine dust and dirt that have penetrated into pores as well as makeup residues. Fine dust that has penetrated into the skin can be removed to some extent through cleansing, but it is impossible to completely remove fine dust that has once penetrated. Therefore, it is more important to prevent skin troubles by reducing skin absorption and penetration of fine dusts.

As a prior art, Korean Patent Laid-Open Publication No. 10-2010-0056239 (published on Feb. 27, 2010, entitled "Cosmetic Composition for Heavy Metals and Fine Dust Adsorbing Containing Polysaccharide") was disclosed, The adsorption of fine dust is promoted rather than the adsorption of the fine dust. Therefore, there is a fear of causing a skin trouble when it is included in cosmetics.

Accordingly, the present inventors have made intensive researches to overcome the problems of the prior art, and as a result, they have developed a cosmetic composition having negative charge (-) using electrostatic repulsive force in view of the property that fine dust is negatively charged It is possible to prevent fine dust adsorption to the skin, and the present invention has been completed.

KR 10-2010-0056239 A

Accordingly, a main object of the present invention is to provide a cosmetic composition containing a component having the same negative charge (-) as the negative charge (-) possessed by the fine dust using the electrostatic repulsion between the particle surfaces so that the fine dust can not be adsorbed and penetrated into the skin Compositions.

In addition, the cosmetic composition for preventing the adhesion of fine dust prevents the skin irritation caused by external contaminants, thereby reducing skin inflammation and trouble generation, thereby preventing skin damage.

According to one aspect of the present invention, there is provided a cosmetic composition for preventing fine dust adsorption, which comprises distilled water, a cosmetic base, and anion donors as an active ingredient.

In the present invention, the fine dust is a dust having a diameter of 10 μm or less and includes air pollutants such as dust, automobile exhaust gas, factory soot, life surrounding combustion gas, and heavy metals. The present inventors have found that the measurement of the surface potential of such fine dusts results in a negative charge.

In the present invention, the negative charge (-) donor material may have a negative charge of any magnitude capable of repelling negative charges, but preferably has a zeta potential of -30 to -150 mV. A cosmetic composition for preventing dust adhesion is provided. If a negative charge donor having a zeta potential in the above range is used, a negative charge sufficient to repel minute dust in the final cosmetic composition can be produced.

In the present invention, the negative charge (-) donor may be any kind of material capable of providing a negative charge (-), but is preferably ammonium lauryl sulfate, ammonium laureth sulfate, sodium laureth sulfate, sodium From the group consisting of diureamidoglutamidyl lysine, sodium lauryl phosphate, disodium lauryl phosphate, potassium laureth phosphate, potassium lauryl phosphate, lauryl phosphate, diai-lauryl sulfate, Wherein the anionic surfactant is a selected anionic surfactant. Most of the anionic surfactants have a high negative charge of more than -100 mV.

In the present invention, the composition preferably further comprises a hydrogenated lecithin, which is an amphoteric surfactant, except for anionic surface-active, and provides a cosmetic composition for preventing fine particle adsorption. The inventors of the present invention found that the negative charge of the final cosmetic composition is higher when the hydrophobic lecithin, which is an amphoteric surfactant, is added, as compared with when only an anionic surfactant is used.

In the present invention, the cosmetic composition for preventing fine dust adsorption is negatively charged due to the negative charge donor. Preferably, the cosmetic composition has a zeta potential of -20 to -100 mV as a whole And a cosmetic composition for preventing fine dust adsorption.

In the present invention, the distilled water helps the negative charge of the negative charge donor material to remain in the ionized state. In addition, the cosmetic base may be any base conventionally used as a base for cosmetics, but preferably is a polyol, an essential oil, a prooral water, a natural moisturizer, and the like.

In the present invention, the cosmetic composition preferably further comprises a pore water-reducing agent. Tannin, alcohol, ascorbic acid and the like known in the art can be used as the pore water fountain, and it is possible to increase the effect of preventing adhesion of fine dust and penetration of pores in the composition of the present invention.

In the present invention, the cosmetic composition of the present invention is characterized by having a formulation of lotion, skin, lotion, or essence.

In the present invention, the cosmetic composition is easily applied to the skin in the form of a spray or mist, and provides a cosmetic composition for preventing fine dust adsorption.

Hereinafter, the present invention will be described more specifically.

The present invention provides a cosmetic composition for preventing fine dust adsorption, which contains an anion donor as an active ingredient to provide a negative charge (-).

The present inventors measured the surface potential of outdoor and indoor fine dusts using a dynamic light scattering device (HORIBA, SZ-100, Dynamic Light Scattering, DLS) capable of measuring the particle size and surface potential prior to development of a cosmetic composition for preventing fine dust adsorption Respectively. The indoor fine dusts showed an average of 31.36 mV and the outdoor fine dusts showed an average surface potential of -31.60 mV. Accordingly, in order to prevent skin dust from adhering to the fine dust, a component providing a negative charge (-) is used to reduce the adhesion of fine dust to the skin by using a repulsive force which pushes the same poles together.

Accordingly, it is a main object of the present invention to provide a cosmetic composition which prevents skin troubles by preventing fine dust from being adsorbed to skin by using an anionic surfactant capable of providing negative charge (-) to skin. The kind of the anionic surfactant according to the present invention is not particularly limited, and may include a common anionic surfactant used in a cosmetic composition. Specific examples include ammonium lauryl sulfate, ammonium laureth sulfate, sodium laureth sulfate, sodium lauryl sulfate, sodium diaramidoglutamide lysine, sodium lauryl phosphate, disodium lauryl phosphate, potassium laureth phosphate, Lauryl phosphate, glutamic acid, aspartic acid, diai-lauryl sulfate, diai-laureth sulfate and the like, but the above-mentioned materials are merely examples and the present invention is not limited thereto. These conventional anionic surfactants may be used alone or in combination.

In the embodiment of the present invention, the solubilized formulation was prepared by dividing the aqueous phase (A) and the aqueous phase (B) of the cosmetic base and adding the anionic surfactant serving as the negative charge donor material to the oil phase.

According to one aspect of the invention, the present invention provides a process for preparing a composition for preventing fine dust adsorption comprising the steps of:

a) Anionic surfactant and polyol are mixed and heated to 70 to 80 ° C Melting the solution at a temperature to produce an oil phase (A);

b) dispersing and dissolving the polyol and other water-soluble components in water to prepare an aqueous phase (B);

c) adding the preservative (C) after adding the oily phase (A) to the aqueous phase (B) at a temperature of 70 to 80 占 폚 and then stirring; And

d) filtering the reaction mixture with a filter paper or filter cloth after the stirring.

According to the present invention, by providing a cosmetic composition for preventing fine dust adsorption which contains anion donors as an active ingredient, it prevents skin contact of fine dust containing contaminants such as soot, automobile exhaust, etc. can do. In addition, the cosmetic composition according to the present invention prevents the occurrence of skin irritation caused by skin adsorption of fine dusts, thereby preventing the occurrence of skin troubles and thus protecting the skin.

1 is a photograph of a dynamic light scattering apparatus for measuring zeta potential of the cosmetic composition of the present invention.

Hereinafter, the present invention will be described in more detail with reference to Examples. These embodiments are only for illustrating the present invention, and thus the scope of the present invention is not construed as being limited by these embodiments.

Example 1: Preparation of Comparative Examples and Examples

(Solubilized formulations) of Comparative Examples 1 to 3 and Examples 1 and 2 having the composition (unit: wt%) as shown in Table 1 below were prepared. The comparative example is a cosmetic composition of a solubilized formulation prepared from a conventional nonionic surfactant which does not contain a component providing a negative charge. Examples 1 and 2 are cosmetic compositions containing at least one selected from anionic surfactants, And a mixture of surfactant hydrogenated lecithin. More specifically, the A phase (oily phase) is dissolved by heating at 70 to 80 ° C, and then slowly added to the B phase (aqueous phase) at room temperature. At this time, the mixture of A phase and B phase is stirred constantly. Thereafter, the mixture was cooled to 40 占 폚, C part (preservative) was added, and cooling and filtration were carried out to prepare each formulation. (PEG-40 Hydrogenated Castor Oil, PEG-40 Hydrogenated Castor Oil) and HCO-60 (PEG-60 Hydrogenated Castor Oil, PEG-60 Hydrogenated Castor Oil) and OD-16 Octyldodeceth-16, octyldodeceth-16) are non-ionic surfactants.

Comparative Example One Comparative Example 2 Comparative Example 3 Example One Example 2

A

HCO-40 0.2 - - - - HCO-60 - 0.2 - - - OD-16 - - 0.2 - - Sodium diureamidoglutamide lysine - - - 0.2 0.2 Hydrogenated lecithin 0.1 DPG 5 5 5 5 5
B
water Balance Balance Balance Balance Balance 1,3-BG 5 5 5 5 5 Disodium edetate 0.02 0.02 0.02 0.02 0.02 C antiseptic Balance Balance Balance Balance Balance

Experimental Example 1: Measurement of surface potential

The surface potential measurements of the formulations containing the anionic surfactant and the comparative examples were carried out as follows. The surface potentials were observed using the above-mentioned dynamic light scattering apparatus. Surface potentials of indoor and outdoor fine dusts were also measured for comparison of the surface potential between the prepared formulation and fine dust. The surface potential of carbon black, which is a fine dust substitute used in the fine dust desorption effect of the adsorption preventive cosmetic composition to be described later, was also measured.

Experiment Item Indoor fine dust Outdoor fine dust Carbon black Zeta potential
(mV) -32.7 -31.9 -29.9 -32.5 -32.1 -26.9 -31.6 -32.1 -31.2 Average -32.3 -32.0 -29.3

Experiment Item Comparative Example One Comparative Example 2 Comparative Example 3 Example One Example 2 Zeta potential
(mV) -1.3 -5.0 -3.3 -45.1 -53.1 -3.2 -4.7 -2.9 -44.0 -53.8 -2.1 -4.2 -2.4 -43.8 -53.7 Average -2.20 -4.63 -2.87 -44.30 -53.53

As a result, as shown in Table 3, comparative examples in which only negative ion donors were not included and only nonionic surfactants were used were -2.20, -4.63, and -2.87 mV, respectively, and indoor and outdoor fine dust and carbon black Which is much lower than that of On the other hand, Example 1, in which the negative charge providing component was included, exhibited a surface potential higher than that of fine dust or carbon black at -44.30 mV. In addition, Example 2 using a hydrogenated lecithin as an amphoteric surfactant showed the highest surface potential at -53.53 mV, rather than using only an anionic surfactant.

Experimental Example 2: Fine dust desorption effect

(Surface potential: -29.3 mV, average particle size: 8.25 μm) having a surface potential and a size similar to fine dusts as a fine dust substitute material in order to confirm the desorption effect of the fine dust on the formulation containing an anionic surfactant Respectively. In the desorption effect test method, the comparative example and the example were uniformly applied to artificial leather of beige, respectively, and then air-dried. Then, carbon black as a fine dust model was sprayed thereon, and the degree of desorption was visually evaluated by 10 professional panel . The evaluation method means that the higher the degree of desorption of the carbon black sprayed on the basis of the scale of 10 points, the higher the score and the more effectively the fine dust is desorbed to prevent the adsorption of the fine dust on the skin.

Comparative Example One Comparative Example 2 Comparative Example 3 Example One Example 2 Panel Evaluation
Mean (n = 5) 5.0 5.7 5.2 8.5 8.8

As can be seen from Table 4, the higher the negative charge, the higher the degree of desorption of fine dust. It can be concluded that the higher the negative charge, the greater the effect of preventing the adsorption of fine dust on the skin due to the repulsive force with the fine dust.

Experimental Example 3: skin safety test

The degree of irritation of each formulation prepared in Comparative Example 1 and Example 2 in which the surface potential was the highest was evaluated as follows. After 20 μL of the sample was applied to all the arms of the test subjects, the test area was closed and applied for 24 hours. After 30 minutes and 24 hours after removing the patch, the skin reaction was checked according to the terminology shown in the CTFA guidelines do. The criteria are as follows. If the score obtained by the criteria is averaged, it is evaluated as low stimulus if less than 1, light stimulus if less than 3, medium stimulus if less than 5, and strong stimulus if more than 5.

Experiment Item Comparative Example One Example 2 Skin irritation index (PII) 0.35 0.45

As described above, the skin irritation of each of Comparative Example 1 and Example 2 is less than 1, and it can be seen that the irritation level is low enough to be used for the product.

The cosmetic composition containing at least one member selected from the group consisting of the negative charge donors of the present invention exhibits the same negative charge as that of the fine particles and thus the skin of the fine dusts Thereby reducing adsorption.

Claims

(EN) Disclosed is a cosmetic composition for preventing fine dust adsorption, which comprises distilled water, a cosmetic base, and negative charge donors (Anion donors) as an active ingredient.

The cosmetic composition for preventing fine dust adsorption according to claim 1, wherein the negative charge donor has a zeta potential of -30 to -150 mV.

The method of claim 1, wherein the negative charge donor material is selected from the group consisting of ammonium lauryl sulfate, ammonium laureth sulfate, sodium laurease sulfate, sodium diureramidoglutamide lysine, sodium lauryl phosphate, disodium lauryl phosphate, Wherein the anionic surfactant is an anionic surfactant selected from the group consisting of lauric acid, laureth phosphate, potassium lauryl phosphate, lauryl phosphate, diai-lauryl sulfate, and diai-laureth sulfate.

The cosmetic composition according to claim 1, wherein the composition further comprises a hydrogenated lecithin which is an amphoteric surfactant.

The cosmetic composition for preventing fine dust adsorption according to claim 1, wherein the cosmetic composition for preventing fine dust adsorption has a zeta potential of -20 to -100 mV.

The cosmetic composition for preventing fine dust adsorption according to claim 1, wherein the cosmetic base comprises a polyol, an essential oil, a prooral water, or a natural moisturizing agent.

The cosmetic composition for prevention of fine dust adsorption according to claim 1, wherein the cosmetic composition further comprises a pore water finishing agent.

The cosmetic composition for preventing fine dust adsorption according to claim 1, wherein the cosmetic composition has a formulation of lotion, skin, lotion, or essence.

The cosmetic composition for preventing fine dust adsorption according to claim 1, wherein the cosmetic composition is applied to the skin in the form of spray or mist.