KR20180055670A - Composition for anti-absorption fine particles - Google Patents

Abstract

The present invention relates to a composition for preventing fine dust adsorption. More particularly, in order to prevent fine dust from being adsorbed to skin and causing various skin damages, the cosmetic composition comprises a non-ionic emulsifier effective for preventing harmful fine dust in the air from being adsorbed to the skin, which does not contain a polyethylene glycol functional group (PEG-free), and an external preparation for the skin. The cosmetic composition for preventing fine dust adsorption and the external preparation for skin according to the present invention can significantly reduce the adsorption of fine dust in the air and prevent or reduce various skin damages which may be caused by fine dust.

Description

TECHNICAL FIELD The present invention relates to a cosmetic composition for preventing fine dust adsorption,

The present invention relates to a composition for preventing fine dust adsorption, and more particularly, to a composition for preventing fine skin dust from adsorbing harmful fine dust in the air to prevent various skin damages caused by absorption of fine dust into skin. (PEG-free) non-ionic surfactant, and an external preparation for skin.

Fine dust can be classified into PM-10 and PM-2.5 depending on the diameter. Specifically, the fine dust of the diameter PM-10 means dust less than 10 mm of 1,000, and the fine dust of the diameter PM-2.5 is dust less than 2.5 mm of 1,000 and the diameter of 1/20 of the hair diameter (about 60 μm) To less than 1/30 size. Fine dust is discharged from a mixture of solid and liquid particles in the air, or is generated chemically or naturally, and occurs directly from specific sources such as workplace combustion, automobile fuel combustion, and biological combustion processes. Diameter PM-2.5 fine dust is produced in a significant amount by precursors such as sulfur oxides (SOx), nitrogen oxides (NOx), ammonia (NH ₃ ) and volatile organic compounds (VOCs) reacting under specific conditions in the atmosphere. Naturally occurring particles include mineral particles (eg, dust), salt particles, and biological particles (eg, pollen, microorganisms). The fine dust composition is very diverse, but consists mainly of carbon components (organic carbon, elemental carbon), ion components (sulfate, nitrate, ammonium) and mineral components.

Fine dusts have been reported to exacerbate respiratory diseases such as asthma and cause lung function deterioration. Particularly, PM-2.5 micropowder particles are fine particles that are not filtered through the nasal mucosa and penetrate directly into the alveoli when inhaled, thereby increasing the prevalence and early mortality of asthma or lung disease.

On the other hand, there is relatively little interest in the effect of fine dust on skin. However, there is an increasing trend to report the relationship between micro dust and skin adverse reactions. Specifically, the fine dust may cause an inflammatory reaction, damage skin barrier, deteriorate atopic dermatitis, produce reactive oxygen species in mitochondria, reduce collagen synthesis, increase collagen degradation, It can cause aging. In addition, PAH on fine dust can increase melanocyte proliferation and increase pigmentation spots on the face. In particular, Asian people are at a higher risk of increasing pigmentation spots due to aging due to fine dust because their skin color is darker than white, and they can increase dermatitis, burning sensation and pruritus to people with sensitive skin. Therefore, in order to protect the skin from fine dust, efforts should be made to reduce the contact with fine dust, to exhaust the fine dust from the body, and to reduce the concentration of fine dust in the room.

Ultimately, reducing contact with the skin of fine dust can be one of the ways to reduce the negative effect of the fine dust on the skin with cosmetics. If it can block the adsorption of fine dust on the skin, .

On the other hand, polyethylene glycol (PEG) is a surfactant extracted from petroleum and is a polymer of ethylene oxide. It is used as a viscosity improver and a moisturizer for simple use, and when combined with other components, it can be used as a surfactant, Amplifying agents, and the like.

Particularly, polyethylene glycol is widely used as a cosmetic material, and it is widely used as a cream, a lotion, a shampoo, a rinse, a hair product, or a soap. However, it can cause allergy when used continuously. Disorder, central nervous system injury, dyspnea, or seriously, dioxin, a carcinogenic substance.

Accordingly, there is a continuing need for development of a cosmetic composition capable of preventing fine dust adsorption at the same time without containing polyethylene glycol. Particularly, in Korean Patent Publication No. 10-2015-0062993, A cosmetic composition prepared using a non-ionic surfactant has a multilayered lamellar structure and thus plays an important role in skin moisturizing and barrier functions. Unlike this, There has been a continuing need for a cosmetic composition that can reduce skin damage by preventing it.

Under these circumstances, the present inventors have found that a cosmetic composition comprising a polyethylene glycol-free (PEG-free) nonionic surfactant, such as Cetearyl olivate or sorbitan oilvate, The present inventors have completed the present invention by confirming that it is possible to prevent fine dust adsorption remarkably and to reduce skin damage due to fine dusts.

It is an object of the present invention to provide a cosmetic composition for preventing fine particle adsorption which comprises a (PEG-free) non-ionic surfactant containing no polyethylene glycol functional group.

Another object of the present invention is to provide a skin external preparation for preventing fine dust adsorption comprising a non-ionic surfactant containing no polyethylene glycol functional group (PEG-free).

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems and to achieve the object of the present invention, the present invention provides a method for producing a fine particle adsorbent comprising a PEG-free nonionic surfactant containing no polyethylene glycol functional group Thereby providing a cosmetic composition for prevention.

In addition, another embodiment provides a skin external preparation for preventing fine dust adsorption, which comprises a (PEG-free) non-ionic surfactant that does not contain a polyethylene glycol functional group.

This will be described in more detail below.

In the present invention, the term "nonionic surfactant" means a substance that dissolves in a liquid that is not dissociated into ions from water to significantly lower the surface tension. The nonionic surfactant belongs to the nonionic emulsifier. The "emulsifier" is generally used in order to make a stable emulsion of two kinds of liquids (usually water and an organic liquid such as oil not mixed with it) Quot; nonionic emulsifier "refers to an emulsifier that is not dissociated from water to ion.

The polyethylene glycol-free (PEG-free) nonionic surfactant refers to a surfactant not containing polyethylene glycol, which is a surfactant extracted from petroleum. In the present specification, a PEG-free nonionic surfactant, It is used in combination with a PEG-free-ionic surfactant.

Specifically, the nonionic surfactant that does not include the polyethylene glycol functional group may be at least one selected from the group consisting of Cetearyl olivate and sorbitan oilvate, but is not limited thereto .

In the present invention, the term " cetearyl olivate "is a compound having a structure represented by the following formula (1), and has a melting point of 50 ° C and a boiling point of 249 ° C.

[Chemical Formula 1]

Specifically, R 1 in the above formula (1) has 16 to 18 carbon atoms including palmitic acid, stearic acid, linoleic acid, linolenic acid, and the like. But are not limited to, hydrocarbon chains derived from saturated and unsaturated higher fatty acids. Also, R2 may be a hydrocarbon chain derived from a higher alcohol having 16 to 18 carbon atoms, but is not limited thereto. Cetearyl olivate can be synthesized by ester bonding of two higher fatty acids and higher alcohols described above, and the higher fatty acids and higher fatty alcohols can be derived from olive oil, but are not limited thereto .

The cetearyl olivate is a fatty acid derived from olive oil and an ester of cetearyl alcohol, and has a structure similar to that of human sebum and is widely used as a vegetable conditioner. Cetearyl olivate is classified as an emulsifier and is usually contained in a cosmetic composition for lotion, cream, and moisturizing for sensitive skin, and is known to have high stability and good feeling from a plant.

In the present invention, the term "sorbitan olivate" is a compound having a structure represented by the following formula (2), which is a monoester of fatty acid derived from hexitolanhydride and olive oil mainly derived from sorbitol, When you begin to apply heat, it becomes liquid.

(2)

Specifically, the R in the formula (2) is a saturated or unsaturated hydrocarbon group having 16 to 18 carbon atoms including Palmitic, Stearic, Oleic, Linoleic, Linolenic, And a hydrocarbon chain derived from an unsaturated higher fatty acid. The sorbitan olivate is also called an olive oil emulsifier because it is derived from olive oil, and is used mainly for stabilizing the interface of ingredients which are not mixed with each other in cosmetics.

The cosmetic composition of the present invention may include at least one selected from the group consisting of cetearyl olivate and sorbitan olivate, and may specifically include both cetearyl olivate and sorbitan olivate.

The cosmetic composition of the present invention may contain cetearyl olivate and sorbitan olivate at a weight ratio of 5: 5 to 7: 3, and more specifically, at a weight ratio of 6: 4, but is not limited thereto. When cetearyl olivate and sorbitan olivate are used in the weight ratios used in the examples, the cosmetic emulsification process is simplified, the stability is improved, and when the ratio is shifted to one side, the emulsifying ability is lowered and the stability of the formulation may be decreased .

The cosmetic composition can be used without limitation in skin, hair, hands and toenails, but it is preferably used for skin.

In this regard, Korean Patent Publication No. 10-2015-0062993 discloses increasing the hair softness sustaining ability by using a sorbitan surfactant to form a lamellar structure so that the non-polar substance is adsorbed on the surface of the hair, In contrast, the cosmetic composition of the present invention is clearly distinguished from the above in order to prevent fine dust from being adsorbed on the skin when it is applied to the skin or the like.

In one specific embodiment of the present invention, a cosmetic composition is prepared by mixing cetearyl olivate and sorbitan olivate in the preparation of a cosmetic composition for preventing fine dust adsorption, and a composition in which cetearyl olivate or sorbitan olivate is not added (Table 2). In particular, unlike a cosmetic composition comprising a conventional sorbitan-based surfactant, which forms a lamellar structure to improve skin adsorption, It was confirmed by a polarizing microscope that the cosmetic composition of the present invention did not form a lamellar structure. From this, it was confirmed that the cosmetic composition of the present invention prevented the adsorption of fine dust on the skin by another mechanism (FIGS. 1 to 3).

In the present invention, the term "fine dust" means a very small dust as the term is used, and it can be classified according to the diameter. Specifically, the fine dust includes fine dust of various diameters, and more specifically, it may prevent the adsorption of minute fine dust such as PM-10 and PM-2.5. However, the present invention is not limited thereto.

The cosmetic composition of the present invention may further comprise a silicone copolymer. In the present invention, the term "silicone copolymer" means a silicone copolymer obtained by polymerizing two or more different monomers belonging to silicon. Examples thereof include acrylate / dimethicone copolymers, dimethicone / vinyl dimethicone crosspolymer, acrylates / Methylsiloxy methacrylate copolymer, and specifically may be an acrylate / polytrimethylsiloxy methacrylate copolymer, but is not limited thereto.

In the present invention, "acrylate / polytrimethylsiloxy methacrylate copolymer" is a copolymer of acrylate and polytrimethylsiloxy methacrylate and is used to amplify the effect of preventing the adsorption of fine dust.

The silicone copolymer, such as the acrylate / polytrimethylsiloxy methacrylate copolymer, is not suitable for injection into cosmetic emulsion formulations and must be provided in a dispersed form in an organic solvent such as silicone oil or hydrocarbon oil. The organic solvent may be isododecane or cyclopentasiloxane, but is not limited thereto. In one specific embodiment of the present invention, an acrylate / polytrimethylsiloxy methacrylate copolymer was dissolved using isododecane as an organic solvent.

In addition, in a specific example of the present invention, it was confirmed that when the silicone copolymer was solely applied to the cosmetic composition without the polyethylene glycol-free nonionic surfactant, the fine dust adsorption rate did not decrease, When the silicone copolymer was added at the same time as the nonionic surfactant containing no polyethylene glycol, the fine dust adsorption rate was remarkably reduced, and it was confirmed that the synergistic effect was clearly shown (Table 2).

Accordingly, it can be seen that a cosmetic composition comprising a nonionic surfactant that does not contain a polyethylene glycol functional group can be used to prevent fine dust adsorption. Further, it can be seen that various skin damages, specifically, It can be seen that it is possible to prevent or reduce damage caused by skin irritation due to various causes such as gas, liquid, solid and the like, skin rash caused by fine dust, skin inflammation, or skin aging.

The cosmetic composition for prevention of fine dust adsorption comprising a non-ionic surfactant (PEG-free) containing no polyethylene glycol functional group and the external preparation for skin of the present invention can significantly reduce the adsorption of fine dust in the air, Which can prevent or alleviate various skin damages.

1 is an optical microscope photograph (left) of a cosmetic composition of Example 1 and an optical microscope photograph (right) using a polarizing filter.
Fig. 2 is an optical microscope photograph (left) of the cosmetic composition of Example 2 and an optical microscope photograph (right) using a polarizing filter. Fig.
FIG. 3 shows a polarizing microscope photograph of an emulsified formulation having a lamellar structure of a conventional cosmetic composition.

Hereinafter, the constitution and effects of the present invention will be described in more detail through examples. These embodiments are only for illustrating the present invention, and the scope of the present invention is not limited by these embodiments.

Preparation Example 1: Preparation of cosmetic composition (Examples 1 to 2 and Comparative Examples 1 to 2)

The cosmetic compositions of Examples 1 to 2 and Comparative Examples 1 to 2 having the compositions shown in Table 1 were prepared.

Example 1 Example 2 Comparative Example 1 Comparative Example 2 Purified water To 100 To 100 To 100 To 100 glycerin 10.00 10.00 10.00 10.00 Dipropylene glycol 5.00 5.00 5.00 5.00 Panthenol 1.00 1.00 1.00 1.00 Disodium iodide 0.02 0.02 0.02 0.02 Acrylate / C10-30 alkyl acrylate crosspolymer 0.3 0.3 0.3 0.3 Cetearyl olivate 0.6 0.6 0.00 0.00 Sorbitan olivate 0.4 0.4 0.00 0.00 Cetearyl alcohol 0.50 0.50 0.50 0.50 Behenyl alcohol 0.08 0.08 0.08 0.08 Polysilicon-11 0.15 0.15 0.15 0.15 Dimethicone 0.15 0.15 0.15 0.15 Cyclopentasiloxane 1.00 1.00 1.00 1.00 Dimethicone 1.00 1.00 1.00 1.00 Caprylic / capric triglyceride 2.00 2.00 2.00 2.00 Squalane 2.00 2.00 2.00 2.00 Hydrogenated lecithin 0.50 0.50 0.50 0.50 Stearic acid 0.10 0.10 0.10 0.10 Isododecane 0.00 1.80 0.00 3.00 Acrylate / polytrimethylsiloxy methacrylate copolymer < RTI ID = 0.0 > 0.00 1.20 0.00 2.00 Tromethamine 0.3 0.3 0.3 0.3 antiseptic Suitable amount Suitable amount Suitable amount Suitable amount Spices Suitable amount Suitable amount Suitable amount Suitable amount

Manufacturing example  2: Cosmetics  Method of manufacturing composition

2-1: Example  1 to 2 Cosmetics  Preparation of composition

Among the ingredients listed in the above Table 1, purified water, glycerin, dipropylene glycol, panthenol, disodium edetate, acrylate / C10-30 alkyl acrylate crosspolymer, cetearyl olivate and sorbitan olivate were homogeneously The mixture was heated to 70 캜 to prepare a first mixture. Next, a solution of a polyoxyethylene glycol such as cetearyl alcohol, polysilicon-11, dimethicone, cyclopentasiloxane, dimethicone, caprylic / capric triglyceride, squalane, hydrogenated lecithin, stearic acid, isododecane, Polyvinylpyrrolidone, polyvinylpyrrolidone, polyvinylpyrrolidone, polyvinylpyrrolidone, polyvinylpyrrolidone, polyvinylpyrrolidone, polyvinylpyrrolidone, polyvinylpyrrolidone, polyvinylpyrrolidone, polyvinylpyrrolidone, A second mixture containing a methacrylate copolymer was prepared and dissolved by heating to 70 占 폚. Thereafter, the second mixture was added to the first mixture to be emulsified, and tromethamine, an antiseptic and a perfume were added thereto and uniformly dispersed to prepare a lotion-type cosmetic composition.

Wherein isododecane acts as an organic solvent to facilitate the use of the acrylate / polytrimethylsiloxymethacrylate copolymer in cosmetics manufacture, and is useful in dissolving the acrylate / polytrimethylsiloxy methacrylate copolymer Other cosmetic ingredients in the role can be used.

2-2: Comparative Example  1 to 2 Cosmetics  Composition manufacturing

A cosmetic composition was prepared in the same manner as in Examples 1 and 2 except that the contents in Table 1 were applied.

Experimental Example  One: Cosmetics  Composition ( Example  1 to 2 and Comparative Example  1 to 2) to prevent fine dust adsorption

Using the cosmetic compositions of Examples 1 and 2 and the cosmetic compositions of Comparative Examples 1 and 2, the effect of preventing fine dust adsorption on surface coating was confirmed. Specifically, a plate coated with artificial sebum on a square plate made of PMMA (polymethyl methacrylate) and dried was prepared, and the cosmetic composition of Examples 1 to 2 and Comparative Examples 1 and 2 was applied to the prepared plate and dried for a predetermined time , The inorganic phosphorescent particles having a size of 5-8 mu m similar to the size of fine dust were exposed. Thereafter, the plate exposed to the inorganic phosphorescent particles was irradiated with ultraviolet rays with an ultraviolet lamp to take an image, and the adsorption area was calculated. The amount of the inorganic phosphorescent particles adsorbed on the plate without applying the cosmetic was converted into 100, The adsorption ratios of inorganic side light particles to the cosmetic composition of the comparative example are shown in Table 2 below.

For reference, the cosmetic compositions of Examples 1 to 2 and Comparative Examples 1 and 2 are as follows, and the inorganic-side light particles are replaced with fine dust particles.

- Comparative Example 1: Formulation without all experimental materials

- Comparative Example 2: Comparative Example 1 + acrylate / polytrimethylsiloxymethacrylate copolymer

- Example 1: Comparative Example 1 + sorbitan olivate and cetearyl olivate

- Example 2: Comparative Example 1 + sorbitan olivate and cetearyl olivate + acrylate / polytrimethylsiloxy methacrylate copolymer

Example 1 Example 2 Comparative Example 1 Comparative Example 2 Fine dust adsorption rate (%) 52 39 75 81

As can be seen from the above Table 2, the changes of the fine dust adsorption rate on the coated surface of the composition were found to be 52%, 39%, 75% and 81%, respectively.

That is, the cosmetic composition of Example 1 was reduced to 75% of that of the cosmetic composition of Comparative Example 1, which contained nothing, to 52% of that of the cosmetic composition of Comparative Example 1 at 75%, and contained polyethylene glycol functional groups It was confirmed that addition of sorbitan olivate and cetearyl olivate, which are non-ionic surfactants which are not used, have an effect of preventing fine dust adsorption.

In addition, the cosmetic composition of Example 2, in which sorbitan olivate and an acrylate / polytrimethylsiloxymethacrylate copolymer, which is a silicone copolymer other than cetearyl olivate, were added, had a fine dust adsorption ratio Was significantly reduced to 39%, and it was confirmed that the sole application of the acrylate / polytrimethylsiloxymethacrylate copolymer through the cosmetic composition of Comparative Example 2 did not reduce the fine dust adsorption rate .

From these results, it was found that when a non-ionic surfactant containing no polyethylene glycol functional group is contained, it shows excellent effects in preventing fine dust adsorption alone. Further, when only a silicone copolymer is added without a polyethylene glycol functional group-containing nonionic surfactant, there is no effect of preventing fine dust adsorption, whereas when the nonionic surfactant and the silicone copolymer are simultaneously contained It was confirmed that there was a remarkably excellent effect in preventing fine dust adsorption.

Experimental Example  2: Cosmetics  Composition ( Example  1 to 2)

In order to confirm that the cosmetic composition of the present invention forms a lamellar structure similar to a cosmetic composition containing a conventional sorbitan surfactant in preventing fine dust adsorption, it was confirmed with a polarizing microscope.

Specifically, after imaging with a LEICA DMRP optical microscope X40 lens, it was imaged and magnified 1.25 times.

For reference, lipids in the skin have a lamellar structure. In the case of an emulsifying cosmetic composition containing a general lamellar structure, it is known that the skin-affinity is increased, the skin is thickened, and greasy ingredients are increased to prevent evaporation of water. It is confirmed whether or not the cosmetic composition of the present invention forms a lamellar structure to block the adsorption of fine dust.

As a result, as shown in FIGS. 1 and 2, unlike the conventional cosmetic composition, the cosmetic composition of the present invention did not show a unique cross shape of a mortar cross, and thus it was confirmed that it did not form a lamellar structure .

Therefore, the fact that the surfactant containing a sorbitan series is contained as an effective ingredient does not form the same lamellar structure, and the cosmetic composition of the present invention has a mechanism different from the existing mechanism for forming the lamellar structure It was confirmed that the adsorption of fine dust on the skin is reduced.

From the above description, it will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. In this regard, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive. The scope of the present invention should be construed as being included in the scope of the present invention without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents.

Claims (9)

(PEG-free) nonionic surfactant that does not contain a polyethylene glycol functional group.
The cosmetic composition according to claim 1, wherein the nonionic surfactant is at least one selected from the group consisting of Cetearyl olivate and sorbitan oilvate.
The cosmetic composition according to claim 2, wherein the cosmetic composition comprises cetearyl olivate and sorbitan olivate in a weight ratio of 5: 5 to 7: 3.
The cosmetic composition according to claim 1, wherein the cosmetic composition is for skin.
The cosmetic composition for preventing fine dust adsorption according to any one of claims 1 to 4, wherein the cosmetic composition further comprises a silicone copolymer.
6. The cosmetic composition according to claim 5, wherein the silicone copolymer is an acrylate / polytrimethylsiloxy methacrylate copolymer.
The cosmetic composition according to claim 6, wherein the acrylate / polytrimethylsiloxy methacrylate copolymer is contained in an amount of 0.1 to 10% by weight based on the total weight of the composition.
The cosmetic composition according to any one of claims 1 to 4, wherein the cosmetic composition is a lotion, cream, serum, sun cream, makeup primer, makeup base, foundation, concealer, .
(PEG-free) non-ionic surfactant that does not contain a polyethylene glycol functional group.

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