WO2017057944A1 - Composition for fine dust prevention containing negatively charged material - Google Patents

Abstract

The present specification discloses a composition for dust prevention containing an anionic emulsification stabilizer or a thickener. In an aspect, the composition for dust prevention of the present invention can minimize the penetration of dust, especially, fine dust, into the skin. Specifically, a negatively charged material contained as an active ingredient in the composition for dust prevention has a similar negative charge zeta potential to dust, and thus can minimize the attachment of dust on the skin surface by electrostatic force. In addition, even though dust penetrates into the cosmetic composition coated on the skin, the dust floats in the emulsion stabilizer or thickener, and thus, the cosmetic composition can prevent the penetration of dust into the skin. Especially, the cosmetic composition can prevent the penetration of fine dust into the skin to minimize the skin inflammation and the accumulation of heavy metals due to the penetration of fine dust, and thus is beneficial for skin health.

Description

Fine dust dustproof composition containing negatively charged material

Disclosed herein is a dustproof composition comprising an anionic emulsion stabilizer or thickener.

When dust builds up in your body, your body's immunity is compromised and can cause a variety of conditions, such as heart disease and respiratory problems. Even bronchial stenosis and prolonged inhalation increase the prevalence of asthma and lung disease and early mortality.

The skin acts as a barrier between the organism and the environment in the outermost part of our body, which is in direct contact with dust, which often degrades when directly exposed to pollution. In particular, the fine dust is 20 times smaller than the pores, so it can easily penetrate the skin. In fact, air pollutants such as fine dust have been known to seriously affect skin health. In the short term, premature aging, lack of moisture, fine lines and wrinkles, and irreversible skin damage in the long run can lead to serious illnesses such as skin cancer, as the skin loses its ability to protect itself from environmental factors. .

Therefore, there is a need for a study on cosmetics for isolating dust, which is a harmful substance that is harmful to skin and sometimes fatal to the human body, from dust.

In one aspect, the object of the present invention is to prevent dust from adhering to the skin.

In another aspect, an object of the present invention is to float fine dust in a cosmetic composition that has penetrated into the cosmetic composition.

In another aspect, an object of the present invention is to minimize the penetration of fine dust into the skin into the cosmetic composition.

In another aspect, an object of the present invention is to prevent or minimize contamination of the skin due to fine dust.

In one aspect, the present invention includes a negatively charged material having a zeta potential value of −3 mV or less in an aqueous solution of pH 7 as an active ingredient, and the negatively charged material is one or more of an emulsion stabilizer and a thickener, and provides a composition for dustproofing.

In one aspect, the dustproof composition of the present invention can minimize the penetration of dust, in particular fine dust into the skin. Specifically, since the negative charge material included in the dustproof composition as an active ingredient has a zeta potential of negative charge similar to dust, it is possible to minimize the adhesion of dust to the skin surface by electrostatic force. In addition, even if the dust penetrates into the cosmetic composition applied to the skin, the dust is suspended in the emulsion stabilizer or thickener, it is possible to prevent the dust from penetrating into the skin. In particular, by preventing the penetration of fine dust, it is possible to minimize the skin inflammation, heavy metal accumulation due to this, it is beneficial to skin health.

1 is a view showing the results of a carbon black adsorption test in artificial leather treated with the dustproof composition of the present invention.

2 is a view showing a visual confirmation result of carbon black remaining on the skin after tape stripping in the skin treated with the composition for dustproofing of the present invention.

3 is a graph showing a change in the amount of carbon black remaining on the skin after tape stripping in the skin treated with the dustproof composition of the present invention.

Hereinafter, the present invention will be described in detail.

As used herein, dustproofing means preventing or minimizing dust adhered to the skin or dust adhering to the skin to be removed from the skin to penetrate the skin. That is, when the dust-proof composition of the present disclosure is applied to the skin, it is possible to minimize the adhesion of dust to the skin, and even if the dust is attached to the skin, it can be easily removed by physical force such as wind, and further to the skin Even if the dust flows into the applied cosmetic composition, the dust floats in the cosmetic composition and can be prevented from penetrating into the skin.

In the present specification, the term "dust" refers to fine particles mixed in the air, and refers to suspended solids having a particle diameter of usually 0.1 um to 10 mm. Particularly, when the particle size is 10um or less, it is also referred to as fine dust and when it is 0.1um or less, it is also called ultra fine dust. Here, the particle diameter may mean an average value of the particle diameters of the fine dust. Dust is a material including materials derived from nature such as sand, soil and pollen, or materials derived from industrial processes such as carbon, carbon combusted products, metal salts and heavy metals, and the like. The presence of dust can be fume, mist, smoke, steam or mist. In general, the zeta potential value of dust, especially fine dust, is negative.

In one aspect, the present invention comprises a negatively charged material having a zeta potential value of −3 mV or less in an aqueous solution of pH 7 as an active ingredient, wherein the negatively charged material is at least one of an emulsifier stabilizer and a thickener, is a composition for dustproofing. In the present specification, the negatively charged material may mean a material having a zeta potential having a negative value. The zeta potential value can be measured by commonly known methods. For example, an aqueous solution containing 0.01 wt% of a sample in quartz cuvette may be prepared and loaded into 100 ul, and then measured using a Zetasizer Nano ZS (Malvern).

The zeta potential of the negatively charged material may be -3 mV or less, -4 mV or less, -5 mV or less, -7 mV or less, -9 mV or less, -10 mV or less, -20 mV or less, -30 mV or less, or -40 mV or less, or- It may be 50 mV or less, but is not limited thereto.

In the above aspect, the negative charge material, the zeta potential value in the aqueous solution of pH7 may be -100mV to -5mV. In addition, the zeta potential value may be -50mV to -10mV. For example, -100 mV or more, -90 mV or more, -80 mV or more, -70 mV or more, -60 mV or more, -50 mV or more, -40 mV or more, -30 mV or more, -20 mV or more, -10 mV or more, -9 mV or more, -7 mV or more, It may be -6 mV or more, or -5 mV or more, -5 mV or less, -6 mV or less, -8 mV or less, -10 mV or less, -20 mV or less, -30 mV or less, -40 mV or less, -50 mV or less, -60 mV or less, -70 mV or less , -80mV or less, -90mV or less, -95mV or less, or -99mV or less, but is not limited thereto.

Since the negatively charged material has the zeta potential value described above, the composition prevents adhesion of the fine dust by electrostatic repulsion with the fine dust and can be easily removed even if attached.

In the above aspect, the thickener may have a viscosity of 100cps to 500000cps. For example, 100cps to 500000cps, 200cps to 500000cps, 300cps to 500000cps, 400cps to 500000cps, 100cps to 400000cps, 100cps to 300000cps, 200cps to 400000cps, 300cps to 300000cps, 300cps to 300000cps, 400cps to 300000cps, or 500cps It is not limited to this.

In the above aspect, the thickener may have a viscosity of 500cps to 300000cps, for example, 500cps or more, 1000cps or more, 5000cps or more, 10000cps or more, 50000cps or more, 100000cps or more, 200000cps or more, 300000cps or less, 300000cps or less, It may be 200000cps or less, 100000cps or less, 50000cps or less, 30000cps or less, 10000cps or less, 5000cps or less, 3000cps or less, 1000cps or less, 900cps or less, 700cps or less, 600cps or less, but is not limited thereto. When the viscosity of the thickener is 500 to 300000 cps, application to the skin is good, and dust adhering to the composition can be suspended in the composition to effectively prevent dust from penetrating into the skin. Viscosity can be measured by methods well known to those skilled in the art, for example, the value after 2 minutes of rotation at 12 rpm using an LV spindle at room temperature using a Brookfield DV-II Pro viscometer. Can be measured.

In the dustproof composition, which is an aspect of the present invention, the emulsion stabilizer is a component that assists in forming the emulsion and stabilizing the formed emulsion, such as electrical repulsion, viscosity change, and forming a film on the emulsion film. Mechanism refers to ingredients that prevent or reduce the coalescence of emulsions. Specifically, the emulsion stabilizer is glyceryl stearate citrate, cetostearyl alcohol, stearic acid, stearic acid, glyceryl stearate, glyceryl stearate, potassium cetyl phosphate potassium cetyl phosphate), sodium stearoyl glutamate and cetyl alcohol, but may be selected from the group consisting of, but not limited thereto.

In addition, the thickening agent (thickening agent, thickener), added to the colloidal solution, polymer solution and the like to improve the viscosity of the solution to give thixotropy (thixotropy). Specifically, the thickener,

Carbomer, Acrylates / C _10-30 Alkyl Acrylate Crosspolymer, Acrylate / C12-22 Alkyl Methacrylate Copolymer (Acrylates / C _12-22 Alkyl) Methacrylate Copolymer), Acrylates / Beheneth-25 Methacrylate Copolymer, Hydroxyethyl acrylate / Sodium Acryloyldimethyl taurate copolymer , Ammonium acryloyldimethyl taurate / V copolymer (Ammonium Acryloyldimethyltaurate / VP Copolymer) and may be selected from the group consisting of sodium polyacrylate, but is not limited thereto.

In the above aspect, the emulsion stabilizer, based on the total weight of the composition, may be included in 0.001 to 20% by weight. For example, at least 0.001 wt%, at least 0.01 wt%, at least 0.1 wt%, at least 0.3 wt%, at least 0.5 wt%, at least 0.7 wt%, at least 0.9 wt%, at least 1.0 wt%, at least 3 wt%, 5 wt% At least 7 wt%, at least 9 wt%, at least 10 wt%, at least 13 wt%, at least 15 wt%, at least 17 wt%, or at least 19 wt%, at most 20 wt%, at most 19 wt%, 18 wt% or less, 16 wt% or less, 14 wt% or less, 12 wt% or less, 11 wt% or less, 9 wt% or less, 7 wt% or less, 6 wt% or less, 4 wt% or less, 2 wt% or less, 1 wt% or less, 0.1 wt% or less, 0.01 wt% or less, or 0.005 wt% or less, but is not limited thereto.

In addition, in the above aspect, the thickener, based on the total weight of the composition may be included in 0.01 to 20% by weight. For example, 0.01% by weight, 0.1% by weight, 0.3% by weight, 0.5% by weight, 0.7% by weight, 0.9% by weight, 1.0% by weight, 3% by weight, 5% by weight, 7% by weight Or at least 9 wt%, at least 10 wt%, at least 13 wt%, at least 15 wt%, at least 17 wt%, or at least 19 wt%, at most 20 wt%, at most 19 wt%, at most 18 wt%, 16 wt% or less, 14 wt% or less, 12 wt% or less, 11 wt% or less, 9 wt% or less, 7 wt% or less, 6 wt% or less, 4 wt% or less, 2 wt% or less, 1 wt% or less, 0.1 wt% or less, 0.02 wt% or less, but is not limited thereto.

In one embodiment, the emulsion stabilizer and thickener may be included in a weight ratio of 1: 0.1 ~ 10. For example, the emulsifying stabilizer and thickener are 1: 0.1 by weight, 1: 0.5 by weight, 1: 1 by weight, 1: 3 by weight, 1: 5 by weight, 1: 7 by weight, 1: 9 by weight, Or it may be included in a weight ratio of 1:10, but is not limited thereto. When both of the emulsifier stabilizer and thickener are included, as well as the repulsive force effect of the negative charge as the dust is suspended in the thickener can be obtained more effective dustproof effect.

In the aspect as described above, the composition, the particle diameter may be to dust the fine dust 10um or less. The particle size is not limited, and may be 100 um or less, 90 um or less, 70 um or less, 50 um or less, 30 um or less, 20 um or less, 15 um or less, or 10 um or less.

In the above aspect, the dust-proof composition may be a cosmetic composition, the cosmetic composition may be a cosmetic composition for makeup, in particular, soft cosmetics, lotions, creams or essences.

As used herein, the term "cosmetics" may refer to any material that may have a medical function in addition to the cosmetic function.

Specifically, the cosmetic composition may include, for example, a basic cosmetic, a makeup cosmetic, a cosmetic for the body, and the like, and the formulation thereof is not particularly limited and may be appropriately selected as desired.

For example, the cosmetic composition is formulated into solutions, suspensions, emulsions, pastes, gels, creams, lotions, powders, soaps, surfactant-containing cleansing, oils, powder foundations, emulsion foundations, wax foundations, sprays, and the like. It may be, but is not limited thereto. More specifically, sunscreen, softener, nourishing lotion, lotion, body lotion, nourishing cream, massage cream, moisturizing cream, hand cream, essence, eye cream, cleansing cream, cleansing foam, cleansing water, pack, gel, patch , Cosmetics such as oil-in-water (O / W) type, oil-in-water (O / W) type, and color cosmetics such as lipstick, makeup base or foundation.

In another aspect, the present invention provides a dustproof method comprising applying to the skin a composition comprising, as an active ingredient, a negatively charged substance having a zeta potential value of -3 mV or less in an aqueous solution of pH 7 as an active ingredient as at least one of an emulsifying stabilizer and a thickener. It may be about.

In yet another aspect, the present invention may relate to the dustproof use of a negative charge material having a zeta potential value of -3 mV or less in an aqueous solution of pH 7 as at least one negative charge material of an emulsifier and a thickener.

According to another aspect of the present invention, the use of a negative charge material for producing a dust-proof composition comprising a negative charge material having a zeta potential value of -3mV or less in an aqueous solution of pH 7 as an active ingredient as one or more negative charge material of an emulsifying stabilizer and a thickener It may be about.

Hereinafter, the present invention will be described in more detail with reference to the following examples and experimental examples. However, the following Examples and Experimental Examples are provided only for the purpose of illustration in order to help the understanding of the present invention, the scope and scope of the present invention is not limited thereto.

EXAMPLES Preparation of Dustproof Composition

In order to confirm the dustproofing effect of the dustproof composition including the negatively charged material as an active ingredient, a dustproof composition including at least one negatively charged material among an emulsifying stabilizer and a thickener was prepared. Specifically, as a composition comprising some of the various candidate substances shown in Table 1, a composition including a component as described in Table 2 below was prepared. A composition comprising no anionic emulsion stabilizer and a thickener as a negative control, a composition containing only a cationic emulsion stabilizer in the negative control as a positive control, a composition further comprising an anionic emulsion stabilizer in the negative control In Example 1, Example 2 was a composition further comprising an anionic thickener in Example 1.

division	Sample	Zeta potential (mV)
Negative Charge Candidate	Sodium Stearoyl Glutamate	-42.0
	Potassium cetylphosphate	-38.4
	Sodium polyacrylate	-5.3
Positive Charge Candidate	Polyzuaternium-51	5.32
	Distearyldimonium chloride	10.3
Non-charge candidates	Polysorbate 60	0.2
	Xanthan Gum	-0.15

Ingredient	Positive control	Negative control	Example 1 (dust composition 1)	Example 2 (dust-proof composition 2)
Purified water	Remaining amount	Remaining amount	Remaining amount	Remaining amount
Polyisobutene	10	10	10	10
Polysorbate 60	1.2	1.2	1.2	1.2
glycerin	5	5	5	5
Butylene Glycol	5	5	5	5
Preservative, coloring, flavoring	Quantity	Quantity	Quantity	Quantity
Xanthan Gum	0.5	0.5	0.5	0.5
Cationic Emulsifiers (Distearyldimonium Chloride)	0	1.0	0	0
Anionic Emulsifying Stabilizer (Potassium Cetyl Phosphate)	0	0	1.0	1.0
Anionic Thickener (Sodium Polyacrylate)	0	0	0	0.2

 Experimental Example 1 Zeta Potential Analysis of Fine Dust and Yellow Dust Standards and Selection of Substitutes for Fine Dust

In order to select the dust substitute material to be used for confirming the dustproof effect of the dustproof composition prepared in the above examples, the zeta potential of the fine dust, yellow dust, and the dust substitute candidate group was analyzed. Zeta potential was measured by methods generally known in the art, and the results are shown in Table 3 below.

division	Sample	Zeta potential (mV)
fine dust	Fine Dust (Korea University of Foreign Studies)	-16.7
	Yellow Sand (Yangjae-dong)	-21.2
	European standard (ERM®CZ 120)	-14.3
In vitro test sample	Carbon Black (LC902)	-18.3
	Iron Oxide (Mapico)	-0.1
	Charcoal powder	-29.0

* Listed in parentheses next to the substance is the source of each substance.

Since fine dust is generally composed of 22% of organic carbon compounds, 8% of carbon elements, 22% of nitrates, 15% of sulfates, 15% of soil crust components, and other 18% (National Institute of Science), It occupies about 30% (organic carbon compound and carbon element), and carbon black having a zeta potential similar to fine dust was selected as a substitute for fine material.

Experimental Example 2 Mimic Model for Skin Adsorption System in-vitro

Using the skin adsorption system mimic model, the dustproof effect of the dustproof composition prepared in the above example was confirmed. Specifically, after applying the negative control, positive control, Examples 1 and 2 prepared in the above Example 5g each artificial leather of 3X5cm each carbon black 3.125g (which is 500000 times the level of fine dust alarm of Korea Meteorological Iron Level)), the air in the convection box is sufficiently convection with air in the convection circulation device, the carbon black remaining on the artificial leather was visually confirmed, and the result is as shown in FIG. As shown in FIG. 1, less carbon black was observed in the leather coated with Example 1 or 2, which is the dustproof composition of the present invention.

[Experimental Example 3] horny layer tape-stripping test

The stratum corneum tape-striping test was performed to confirm the anti-vibration effect of Example 2 prepared in the above examples. Specifically, the cleansing the skin, and upper arm forearm Example 2 to 2x2cm ^2, 2ul / cm ² After 5 minutes of drying, 5 ul of a composition containing 5% by weight of carbon black was applied thereon, followed by drying for 10 minutes. The skin was imaged with an optical camera (VISIA-CR). Subsequently, after washing for 5 seconds in running water, the previously evaluated skin was imaged again using an optical camera. In addition, through a tape stripping test, after 10 times of attaching and detaching the D-Squame ^® tape on the skin, the amount of carbon black remaining on the skin was measured by an optical camera. The image was separated and summed based on color and intensity using an image analysis program (Image Pro plus) and quantified and represented as a graph (FIGS. 2 and 3).

Hereinafter, the formulation example of the composition according to the present invention, but the cosmetic composition is applicable to various formulations, which is intended to explain in detail only, not intended to limit the present invention.

Oil type cosmetics

Ingredient	weight%
Purified water	Remaining amount
Polyisobutene	10
Polysorbate 60	1.2
glycerin	5
Butylene Glycol	5
Preservative, coloring, flavoring	Quantity
Thickener	0.5
At least one of potassium cetyl phosphate and sodium polyacrylate	1.0

Claims (13)

1. zeta potential value in the aqueous solution of pH 7 is -3mV or less negatively charged material as an active ingredient,

   The negatively charged material is at least one of an emulsifier stabilizer and a thickener, dustproof composition.
2. The method of claim 1,

   The negative charge material,

   The zeta potential value in the aqueous solution of pH7 is -100mV to -5mV, Dust-proof composition.
3. The method of claim 1,

   The negative charge material,

   Zeta potential value in the aqueous solution of pH7 is -50mV to -10mV, the composition for dustproof.
4. The method of claim 1,

   The thickener has a viscosity of 100 cps to 500000 cps, dustproof composition.
5. The method of claim 1,

   The thickener has a viscosity of 500 cps to 300000 cps, dustproof composition.
6. The method of claim 1,

   The emulsifying stabilizer,

   Glyceryl stearate citrate, cetostearyl alcohol, stearic acid, glyceryl stearate, potassium cetyl phosphate, sodium stearate Dustproof composition selected from the group consisting of sodium stearoyl glutamate and cetyl alcohol (cetyl alcohol).
7. The method of claim 1,

   The thickener,

   Carbomer (carbomer), acrylates / C _10-30 alkyl acrylate cross polymer _{(Acrylates / C 10-30 Alkyl Acrylate Crosspolymer} ), acrylates / C _12-22 alkyl methacrylate copolymer (Acrylates / C _12-22 Alkyl Methacrylate Copolymer), Acrylates / Beheneth-25 Methacrylate Copolymer, Hydroxyethyl Acrylate / Sodium Acryloyldimethyl Taurate Copolymer ), Ammonium acryloyldimethyl taurate / V copolymer (Ammonium Acryloyldimethyltaurate / VP Copolymer) and sodium polyacrylate, a composition for dustproof.
8. The method of claim 1,

   The emulsifying stabilizer,

   Based on the total weight of the composition, 0.001 to 20% by weight, dustproof composition.
9. The method of claim 1,

   The thickener,

   Dust-containing composition, 0.01 to 20% by weight based on the total weight of the composition.
10. The method of claim 1,

    The emulsifier stabilizer and thickener is included in a weight ratio of 1: 0.1 to 10, dustproof composition.
11. The method of claim 1,

    The composition is a dust-proof composition for dust-proof dust having a particle diameter of 10um or less.
12. The method according to any one of claims 1 to 11,

    The composition for dustproof is a cosmetic composition.
13. The method of claim 12,

    The cosmetic composition is a softening lotion, lotion, cream or essence, the composition.

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