KR101874623B1 - High-quality impregnating material having high antibacterial and cosmetics comprising the same - Google Patents

Abstract

The present invention relates to a high-performance impregnation material having excellent antimicrobial effect that can extend the period of use and shelf life of cosmetics by coating silver nanoparticles on both sides of the impregnation material which can not be cleaned and replaced, And to cosmetics having the same.

Description

TECHNICAL FIELD The present invention relates to a high-quality impregnating material having excellent antibacterial effect and a cosmetic having the same,

The present invention relates to a high-quality impregnation material having an excellent antimicrobial effect capable of enhancing antimicrobial activity for a long period of time and lowering the degree of contamination, and a cosmetic product comprising the same.

Cosmetics are in the form of emulsions in various ingredients for skin protection and improvement and are available in various formulation forms.

Cushion cosmetics is a type of product which is absorbed in special sponge material called basic material such as sun cream, makeup base, foundation and so on.

These cushion cosmetics apply the liquid cosmetic composition absorbed by the sponge using the built-in special type 'air pellet (wet urethane) puff', so that women apply the base product with excellent sun protection ingredient anytime and anywhere, I can fix it.

The cosmetic composition contains a certain amount of moisture and oil, and is contaminated with moisture, oil and face sebum in cosmetics. This pollution is no better than an environment in which bacteria grow, especially in the summer when moist cosmetic formulations are used or when humidity is high.

Bacteria and contamination of the impregnated material are spread to the skin through the use of puffs, which causes serious problems to the skin, even when the face is maintained and the hands are kept clean.

The impregnation material is used until the cosmetic composition, which is usually the content, is consumed, and then the impregnation material container carrying the cosmetic composition is refilled in the form of a refill. The cleansing product allows the puff to be cleaned, but the impregnated material itself is a consumable that can not be cleaned or replaced. If bacteria or contamination occurs, the period of use is very short because it is no longer usable.

The bacterium may occur not only in use but also in distribution of cosmetics. Cosmetics are prescribed by the direct contact with the skin and are marked on the surface of the product. The longer the shelf life is, the lower the efficacy of the product, or it becomes a hotbed of bacteria.

Thus, a method of adding an antimicrobial substance such as silver nanoparticles to a cosmetic container, a cushion or a cosmetic composition so as to have an antibacterial function is used.

It is known that silver (Ag) is harmless to the human body and has no toxicity. It is known to kill more than 650 kinds of harmful bacteria by suppressing the metabolic functions of the microorganisms in various directions. In particular, the antibacterial effect of silver nanoparticles has been applied in various technical fields.

Although silver nanoparticles can be added to obtain antimicrobial effect in this way, a direct antimicrobial effect against a cushion which is a direct warming-up of bacteria can not be secured. Considering the marketability of cushion cosmetics currently in the cosmetics market, securing the antimicrobial effect is very necessary.

Korean Registered Utility Model No. 20-0393915 (Aug. 18, 2005), antibacterial cosmetic container Korean Patent No. 10-0563084 (Mar. 15, 2006), cosmetic composition containing paramagnetic silver nanoparticles Korean Registered Utility Model No. 20-0384886 (2005.05.13), cosmetic container Korean Patent No. 10-0773039 (Oct. 29, 2007), a cosmetic puff containing silver nanoparticles and tourmaline nanoparticles and a method for manufacturing the same

The Applicant has developed a new structure of the impregnated material of the applicator and the cosmetic composition by increasing the antimicrobial activity for a long period of time and lowering the degree of contamination and confirming that the above effect can be secured when the impregnant is installed in a cosmetic container, .

Accordingly, it is an object of the present invention to provide a cosmetic container having a silver nano-coating impregnated material.

In order to achieve the above object, the present invention provides a high-quality impregnation material for a cosmetic composition, wherein a coating layer having silver nanoparticles having a purity of 99% or more is formed on at least one of the upper and lower surfaces of the impregnation material.

In addition, the present invention provides a cosmetic comprising the above-mentioned impregnated material.

The cosmetics according to the present invention have high stain resistance and antimicrobial property by using impregnated material coated with silver nanoparticles, and thus the contamination and microorganisms generated in the impregnated material, which can not be cleaned and replaced until the conventional cosmetic composition is consumed, And the period of use and the shelf life of the cosmetics can be extended.

In addition, due to the coating of silver nanoparticles, the impregnated material itself has a luxurious and sophisticated appearance, which can further enhance the consumer's satisfaction and increase purchasing power.

1 is a perspective view of a cosmetic according to an embodiment of the present invention;
2 is a cross-sectional view of a silver nano-coated impregnated material according to the present invention
FIG. 3 is a schematic view showing the manufacture of a silver nano-coated impregnated material according to an embodiment of the present invention.
4 is a schematic view showing the manufacture of a silver nano-coated impregnated material according to another embodiment of the present invention
FIG. 5 shows the results of experiments on antimicrobial activity against Staphylococcus aureus . (A) Example 1 (b)
FIG. 6 shows an experiment of antibacterial activity against Klebsiella pneumoniae . (A) Example 1 (b)

In the present invention, silver nanoparticles are applied to an impregnation material carrying the cosmetic composition in order to prevent contamination of the cosmetic material having the impregnation material bearing the cosmetic composition and to obtain an antibacterial effect. The silver nanoparticles have the effect of sterilizing more than 99.99% of bacteria and germs, or inhibiting the generation thereof, thereby sterilizing adhered bacteria and germs during use or distribution of cosmetics.

Conventionally, a technique of applying silver nanoparticles to a container of cosmetics or a cosmetic composition itself has been widely known. However, in the present invention, silver nanoparticles are placed not on the inside of the impregnated material but on the upper and lower surfaces of the impregnated material, , Durability and antimicrobial effects, as well as visual luxury and sophistication at the same time.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

1 is a perspective view of a cosmetic container 50 according to an embodiment of the present invention.

Referring to the drawings, a cosmetic container according to the present invention mainly comprises a lower case 10, an upper case 20, and a sealing cover 30 located therebetween.

The lower case 10 and the upper case 20 are formed to correspond to each other and can be formed into a circular shape as shown in FIG. 1. However, in addition to these shapes, various shapes such as an ellipse, a rectangle, It is possible.

The lower case 10 and the upper case 20 are coupled to the hinge portion 13 so that the upper case 20 and the lower case 10 are opened and closed at a predetermined angle by the external force by the hinge portion 13 , So that the angle is maintained stably.

When the applicator 41 is used, the upper case 20 may be constituted by a mirror mount (not shown) on which a mirror for confirming the appearance of the user is mounted, which is optional.

The applicator 41 is a tool for applying the cosmetic composition in the impregnation material 11 to the surface of the applicator 41 and applying it to the skin of the user, and is generally called a puff.

The applicator 41 must be smoothly coated with a cosmetic composition. When the skin is brought into contact with the user, the user does not feel any sense of heterogeneity. The applicator 41 should be applied uniformly to the area (face or exposed skin) Of the population.

The applicator 41 may be a resilient pad type puff (or cushion body, or sponge), cloth, fabric, microfiber, velvet, nonwoven, and the like of a face, sponge, foamed urethane, polyester, nylon, It is made of a material having touch.

The lower case (10) and the upper case (20) are separated by a sealing cover (30).

The sealing cover 30 is formed in a predetermined groove shape to increase the sealing force of the cosmetic composition existing in the lower case 10 in conformity with the outer circumferential surface of the lower case 10 and the outer circumferential surface of the upper case 20.

The upper portion of the sealing cover 30 is formed in a predetermined groove shape for accommodating the applicator 41 and forms a guide groove or a step to accommodate the applicator 41, And is formed in the same shape as the shape.

The lower portion of the hermetic cover 30 is a component constituting the upper surface of the lower case 10 and tightly engages with the lower case 10 so that external air or moisture flows into the lower case 10 Which is a primary sealing element for blocking the gas. Thereby preventing moisture evaporation of the cosmetic composition due to the sealed cover 30.

At this time, the hermetic cover 30 is coupled to the hinge portion 13 disposed at the coupling position of the upper case 20 and the lower case 10, and is connected to the coupling fixing means 15 of the hinge portion 13, So that the cover 30 can be opened and closed.

That is, the lower case 10, the upper case 20 and the closing cover 30 are fixed through the hinge portion 13 and the engaging and fixing means 15, respectively, and can be opened and closed through the hinge.

In the lower case 10, there is one receiving groove for storing the cosmetic composition.

The cosmetic composition is a liquid cosmetic composition and has a form carried on the impregnation material (11).

The impregnation material 11 is cut according to the shape of the receiving space, and is cut into various shapes such as a circle, an ellipse, and a rectangle in a shape that is inserted into the receiving groove space and is not separated as shown in the figure.

The impregnation material 11 is also referred to as a cushion material or cushion. The impregnation material 11 includes a plurality of pores on the inside and the surface thereof. When the pressure is applied from the outside, an elastic restoring force is exerted, .

Since the impregnation material 11 carries a liquid cosmetic composition, bacteria easily form and reproduce easily. In addition, when the opening and closing operation is performed, fine foreign matter or the like is sucked or fixed, and sweat or secretion, which is a non-woven material, is introduced into the face by contact with the applicator 41. Further, when applied to the face, skin trouble, acne, May cause contact dermatitis or the like.

While the applicator 41 can be easily cleaned or replaced, the impregnation material 11 carrying the cosmetic composition can not be cleaned or replaced, and should be used until the cosmetic composition is consumed. Thus, the problem of bacteria and contamination can be very serious.

Particularly, in the present invention, silver nanoparticles are introduced into the impregnation material 11 to solve the above problem. As already mentioned, there are some impregnated materials incorporating silver nanoparticles, but they have physical properties (such as hardness and durability) when silver nanoparticles are introduced due to the unique characteristics of elastic materials having many pores for elasticity. In the present invention, a silver nanocomposite impregnated material is used in which silver nanoparticles are coated on an impregnation material so as to maintain antibacterial properties while maintaining the characteristics unique to the elastic material.

The coating layer having silver nanoparticles can be formed on the top or bottom of the elastic substrate, or both, preferably on both sides.

2 is a cross-sectional view of a silver nano-coated impregnation material 11 according to an embodiment of the present invention. 2, the silver nano-coating impregnated material 11 according to the present invention includes an elastic substrate 111 and silver nanoparticles coated on at least one of upper and lower surfaces of the elastic substrate 111 in the thickness direction And the silver nanoparticles 113 and 115 are formed.

As the elastic substrate 111 proposed in the present invention, an elastic material called a cushion body or a cushion may be used.

As the elastic material, natural rubber, synthetic rubber or foam polymer may be used, and they may be used without limitation as long as they are commonly used in the art for impregnating a cosmetic composition.

The natural rubber may be a general natural rubber or a modified natural rubber, and may include a modified natural rubber. The natural rubber may generally comprise NR (natural rubber). Any material known as natural rubber can be used, and the place of origin and the like are not limited.

Synthetic rubbers include but are not limited to styrene butadiene rubber (SBR), modified styrene butadiene rubber, butadiene rubber, modified butadiene rubber, chlorosulfonated polyethylene rubber, epichlorohydrin rubber, , A nitrile rubber, a hydrogenated nitrile rubber, an acrylonitrile-butadiene rubber (NBR), a modified nitrile butadiene rubber, a chlorinated polyethylene rubber, a styrene butadiene styrene rubber (SBS) Lt; / RTI >

The foamed polymer is also called foam, and it is possible to use foamed polyethylene, foamed polyvinyl alcohol, foamed ethylene vinyl acetate, foamed polyvinyl chloride, foamed polyacrylate, foamed polyurethane and the like, and preferably a polyurethane material is used . The foamed polyurethane has an advantage of being excellent in hydrolysis resistance (water resistance) / thermal oxidation resistance / low temperature flexibility / mechanical properties / oil resistance / workability, and is not easily swollen or broken. Also, it has excellent elasticity, has high durability even in a high temperature and high humidity environment, is resistant to acid and alkali, and can be suitably used in an O / W or W / O cosmetic composition.

Foamed polyurethanes are prepared by the reaction of a polyol component with an isocyanate compound and are obtained through a foaming process. At this time, it is classified into polyether urethane or polyester urethane depending on the polyol composition, and they can be used singly or in combination.

The foamed polyester urethane has a high tensile strength, hardness and elongation as compared with expanded polyether urethane, excellent flame retardancy, excellent chemical resistance and chemical resistance, and is easy to be oxidized but hydrolyzed. In the case of the W / O or W / S type toning cosmetic composition, the oil or silicon oil phase of the trauma surrounds the in-vivo aqueous phase component, so that the polyester urethane foam is less susceptible to deformation and may be suitable for impregnating the cosmetic composition.

Examples of the polyol include polyether polyols such as polyether polyol such as polypropylene glycol, polytetramethylene glycol and polymer polyol, polyester polyol such as adipate polyol and polycaprolactone polyol, polycarbonate polyol, polyolefin polyol, It is possible.

The isocyanate compound may be classified into an aromatic isocyanate and an aliphatic isocyanate. The aromatic isocyanate may be methylene diphenyl diisocyanate (MDI), toluene diisocyanate (TDI), p-phenylene diisocyanate (PPDI), naphthalene diisocyanate (NDI), etc., and the aliphatic isocyanate may be hexamethylene diisocyanate ), Isophorone diisocyanate (IPDA), dicyclohexylmethane-4,4'-diisocyanate (H12MDI), meta-tetramethylxylene diisocyanate (TMXDI), transcyclohexane diisocyanate (CHDI) and trimethylhexamethylene di Isocyanate (TMDI) and the like can be used.

The elastic base material 111 having the above material has an open cell structure for discharging the cosmetic composition, wherein the maximum diameter of the cell is 15 占 퐉 or more and 150 占 퐉 or less and the density (25 占 폚) g / cm < ³ >, and the pore number has 80 to 100 ppi (pore per inch).

The cosmetic composition can be sufficiently absorbed within the above physical property range and the cosmetic composition can be easily discharged by an external force, so that the elasticity and durability can be sufficiently maintained during the period of use of the cosmetic. More specifically, when the elastic substrate 111 has a closed cell structure, the open cell structure is preferable because the bubbles can not be impregnated with the low-viscosity emulsified content by being trapped in the silver nanocomposite impregnated material 11. If the density of the elastic base material 111 is too low, the cosmetic composition will be overloaded to deteriorate the usability. If the density is too high, the pore can be impregnated with the content, which makes it difficult to impregnate effectively.

Particularly, when the number of pores of the elastic substrate 111 is too small, the impregnation material is less elastic and less usable. If it is too much, durability may be deteriorated. Preferably, the number of pores is in the above range, more preferably between 20 and 100 ppi, and most preferably between 45 and 80 ppi.

In addition, in addition, the elastic substrate 111 may have a value of 40 to 50 as measured by an ASKER hardness type F (Type F). If the hardness of the elastic substrate 111 is too weak, the cosmetic composition impregnated with the tool (puff) used in the fact type or the hand with the hand may excessively come out, and if the hard base is too hard, .

On the other hand, the silver for forming the silver nano-coating layers 113 and 115 of the silver nanoporous impregnation material 11 is harmless to the human body and is not toxic, and inhibits various metabolic functions in the microorganism body, And a variety of products are on the market.

Silver nanoparticles have been known to have superior antimicrobial and disinfecting power than any other metal. In medicine, silver has been used for a long time as a perfect antimicrobial substance, and its effect is judged to be equivalent to that of synthetic antibiotics. There is an advantage that it is not.

In particular, the silver nanocomposite layers 113 and 115 proposed in the present invention contain substantially no other components such as heavy metals and binders in addition to the silver nanoparticles. Only 99.9% or more of the nanoparticles exist and the average particle diameter is in the range of 1 to 100 nm , Preferably from 2 to 100 nm, more preferably from 5 to 20 nm. As a result, the silver nanoparticle impregnated material 11 of the present invention can be any material capable of inhibiting the generation of germs occurring in ordinary cosmetics fields and inducing the death of the produced germs. The bacterium may be Staphylococcus aureus or Klebsiella pneumoniae .

The silver nano-coating layers 113 and 115 of the silver nano-coating impregnated material 11 of the present invention may be coated or discontinuously distributed over the entire upper and lower surfaces of the elastic substrate 111. Preferably, the impregnated material 11 itself has a discontinuous distribution so that the cosmetic composition supported by the pressing force of the applicator 41 can be led to the nanocomposite layer 113. In the present invention, 'discontinuously distributed' in the silver nanocomposite layers 113 and 115 means that a region in which silver nanoparticles are present and a region in which no silver nanoparticles exist exist in a specific region, This means that the regions where the silver nanoparticles are present are distributed so as to isolate, isolate, or isolate them as island-type, so that regions where silver nanoparticles exist are distributed without continuity.

The silver nano-coating layers 113 and 115 are formed on the upper and lower portions of the elastic base 111. In general, when the cosmetic composition is used to some extent, silver nano-coating layers 113 and 115 are formed on opposite sides of the elastic base 111 because the amount of the cosmetic composition is small and the silver nano-coating impregnation material 11 is turned over. .

In addition, the thickness of the silver nano-coating layers 113 and 115 may be 1 nm to 1000 nm, preferably 50 to 500 nm. The silver nanoparticle impregnated material 11 has to discharge the cosmetic composition by the pressing pressure of the applicator 41. When the thickness of the silver nanoparticle layers 113 and 115 is thick, It is inconvenient to work many times because the cosmetic composition is not sufficiently adhered, and there is a fear that the cosmetic composition may come out from the container by applying more than necessary force to increase the discharge amount.

At this time, the larger the thickness of the silver nanoparticles 113 and 115, the larger the content of the particles. The greater the content of the particles, the better the antimicrobial effect. However, when the particles are mixed to some extent, the effect is not increased, and the content is increased because the cost increases with the increase of the content. Preferably, the total amount of the silver nanoparticles forming the silver nanocoating layers 113 and 115 is 0.0001 to 30 parts by weight, preferably 0.005 to 10 parts by weight, based on 100 parts by weight of the whole elastic substrate 111 Is used. If the content is less than the above range, the antimicrobial effect can not be sufficiently manifested. On the contrary, when the content exceeds the above range, there is no large increase in the effect and the pores of the elastic substrate 111 can be blocked. .

The silver nanoparticle impregnated material 11 described above is not particularly limited in its manufacturing method. The method for manufacturing the nanoporous impregnated material 11 may be such that the elastic substrate 111 is manufactured through a known foaming process and silver nano-coating layers 113 and 115 ).

The production of the elastic substrate 111 is carried out through a conventional foaming process for foam production.

The foam molding is a method for producing a product by forming bubbles in the molding process and uniformly dispersing the bubbles in the polymer resin. The foam molding is often used in combination with other processing methods, and can be broadly divided into chemical foaming and physical foaming.

The most important factor in the foaming process is the technique of controlling the size, shape, distribution and content of foam cells. The foam extrusion is a process of extruding a resin, a foaming agent and other additives in advance, or injecting a foaming agent into an appropriate position of the extruder, When the extrudate is uniformly dispersed and then extruded through the die, the compressed foaming agent immediately expands and foams.

Another method is to extrude the foaming agent at a low temperature at which the foaming agent does not decompose in the extrusion process, and then foaming while passing through the heating device. The blowing agent is impregnated into polymer pellets, chips, beads or the like, or is injected into the particles, and is foamed by a method similar to that of popcorn manufacturing in the secondary processing, and then molded. In some cases, foaming agents, resins, and other additives are kneaded and then injected into a mold and foamed to make the polymer block into an appropriate shape.

For example, the foamed polyurethane may be prepared by mixing a surfactant, a catalyst, a crosslinking agent or the like together with a polyol, an isocyanate or a foaming agent, preparing a foaming preparation, and injecting air at a rate of 2000 to 2500 cc / min; Bubbling the reactant discharged by the mixing step with carbon dioxide gas generated by reaction of water and isocyanate; And an aging process in which the foam formed by the foaming process is aged until it is completely cured.

The foamed polyurethane obtained after the foaming process is cut to a size applicable to cosmetics.

The silver nanoparticles 113 and 115 may be formed by any method that does not block the pores of the elastic substrate 111. It is preferable to use silver nanoparticles according to an easy method of manufacturing silver nanoparticles by using a silver compound and a reducing agent instead of conventional methods such as sputtering to form only pure silver nanoparticles.

The core of the technology related to the antimicrobial effect of silver nanoparticles is to distribute silver evenly as small particles as possible. This is because the area of contact between the silver nanoparticles and the bacteria is increased, so that even a small amount of silver can achieve sufficient sterilization effect. Therefore, when making silver nanoparticles, it is necessary to increase the purity very much. For example, if only 0.01% of nickel is contained as impurities, it is very harmful to the human body.

In particular, the silver nanocoating layers 113 and 115 on the upper and lower portions of the silver nanoparticle impregnation material 11 proposed in the present invention sufficiently disperse the silver nanoparticles uniformly and other compositions (for example, heavy metals or binders) , Which is manufactured through a process using silver nitrate.

The silver nanoparticles themselves are opaque and when the silver nanoparticles or the material containing or added with the solution are injection molded, the silver nanoparticles react with oxygen (O ₂ ) or ozone (O ₃ ) Black peroxide can be discolored by the generation of silver peroxide (Ag ₂ O ₂ ), but the method presented by the present invention does not have this problem. In particular, the roll-to-roll process can be performed, which enables mass production of a large area.

The preparation of silver nanoparticles using silver nitrate is achieved by the reaction of silver nitrate with a reducing agent.

[Reaction Scheme 1]

_{R-CHO + 2Ag (NH 3} ) 2 + + 2OH - → 2Ag + R-COOH + 4NH 3 + H 2 O

A compound having an aldehyde group reacts with a silver compound forming a complex with ammonia water to form silver nanoparticles by reacting with an alkali solution to reduce silver nanoparticles and oxidize aldehyde groups to carboxylic acids.

The reaction can be carried out at room temperature, and preferably at 25 to 40 ° C. The average diameter of the reduced silver nanoparticles may be nano-level, so that the conventional silver halide reaction should proceed at 100 to 300 ° C, and silver nanoparticles reduced in size are more than micron, There is a feature that can reduce nanoparticles.

The silver compound aqueous solution having the silver ion may be formed by mixing silver compound and water, and the silver compound having silver ion is added as a precursor of the silver nanoparticle according to the present invention. Examples of the silver compound having a silver ion which can be used in the present invention include silver compounds such as silver nitrate (AgNO ₃ ), silver sulfate (Ag ₂ (SO ₄ )), silver acetate or silver chloride (AgCl) (AgBr) and silver fluoride (AgF), and the like, and the present invention is not limited thereto.

The aqueous solution of the silver compound having silver ions according to the present invention may include 1 to 5% by weight of the silver compound having silver ions and 95 to 99% by weight of water, but is not limited thereto.

The reducing agent is used for reducing the silver nitrate to produce silver nanoparticles. Examples of the reducing agent include hydrogen peroxide (H ₂ O ₂ ), trisodium citrate, sodium borohydride, formaldehyde, acetaldehyde but are not limited to, acetaldehyde, butylaldehyde, pentanal, heptanal, octanal, decanal, nonanal, undecanal, tridecanal Tridecanal, 10-undecenal, Dodecyl aldehyde, Isobutyraldehyde, Phenylacetaldehyde, Piperonal, 2-pyridinecarboxaldehyde (2- One selected from the group consisting of Pyridinecarboxaldehyde, myristicin aldehyde, glucose, glyceraldehyde, galactose, ribose, lactose and maltose. Above is possible .

The silver nitrate and the reducing agent are used in a molar ratio of 1: 0.1 to 1: 1, preferably in the range of 0.1 to 5 M, respectively. The silver nitrate solution is preferably completely dispersed in water beforehand, and the concentration of the silver nanoparticles differs depending on the amount of silver nitrate added, and the silver nanoparticles are varied in size, so that the content of silver nitrate is adjusted accordingly. The silver nitrate solution, the trisodium citrate and the hydrogen peroxide solution are mixed and stirred sufficiently.

Further, ammonia water and an aqueous alkali solution are further added to the above composition.

Ammonia water binds to silver ions to form a complex, and the aqueous alkali solution serves to form silver particles by reducing the silver compound. The alkali aqueous solution may be prepared by mixing a metal hydroxide such as calcium hydroxide, aluminum hydroxide, potassium hydroxide, and sodium hydroxide in water as a material for increasing the pH of the dispersion.

The aqueous ammonia solution and the aqueous alkali solution may include 1 to 5 wt% of ammonia water, 1 to 5 wt% of metal hydroxide and 94 to 98 wt% of water, but are not limited thereto.

When the silver nano-coating layers 113 and 115 are formed using the silver compound and the reducing agent, the coating of the material on the elastic substrate 111 can be dip-coated or spray-coated, Processing is possible.

3 is a schematic view showing a manufacturing process of a silver nano-coating impregnated material 11 by a roll-to-roll process using the dip coating method of the present invention.

The roll-to-roll process uses a roll-to-roll transfer apparatus. As shown in FIG. 3, the substrate take-up roll 300 transfers the elastic substrate 111 by the roller unit 251.

At this time, the elastic substrate 111 may be pretreated to perform a subsequent reduction reaction. The pretreatment is not particularly limited in the present invention, and a process capable of activating the surface such as plasma treatment, acid treatment, and base treatment can be performed.

3 is a schematic diagram showing the production of silver nanocomposite impregnation material 11 through an immersion process.

3, the pretreatment solution 411 in the pretreatment tank 415 is prepared for pretreatment. After passing through the elastic substrate 111, the pretreatment solution 411 is passed through the cleaning liquid 413, and the surface of the elastic substrate 111 is activated do. The pretreatment solution does not use a specific composition, and an aqueous solution containing a known tin chloride / nitric acid / noble metal chloride or the like is possible. At this time, a drier (not shown) for the drying process may be additionally provided between the pretreatment and the subsequent immersion process, followed by immersion after drying.

Next, the immersion tank 510, in which the silver compound and the reducing agent are immersed, is provided for the preparation of the silver nano-coating layers 113 and 115, respectively. The immersion tank 510 has a region divided to support the silver compound solution 511 and the reducing agent solution 513, respectively.

The elastic substrate 111 is immersed in the silver compound solution 511 in the immersion tank 510 for a predetermined time and then transferred to the reducing agent solution 513 so that a reduction reaction occurs on the surface of the elastic substrate 111 do.

After that, by-products are removed through a post-treatment apparatus 515 having a washing tank and a drying apparatus, silver nano-coating layers 113 and 115 are fixed on the surface of the elastic substrate 111, To prepare a silver nano-coating impregnated material 11 to be obtained in the present invention.

The wound roll of the nanocomposite impregnated material 11 is cut into an appropriate size in a cosmetic container through an additional cutting process.

4 is a schematic view showing a manufacturing process of a silver nano-coating impregnated material 11 by a roll-to-roll process using the spray coating method of the present invention. The method shown in FIG. 4 is similar to that described in FIG.

First, the sheet-like elastic substrate 111 is mounted on a roll and then transferred.

Is sprayed through the nozzles 711 and 715 from the supply device provided with the pretreatment solution and the cleaning liquid on the elastic substrate 111 conveyed through the rotation of the roller 251. At this time, the pretreatment solution and the cleaning liquid follow the steps mentioned in FIG. 3, thereby activating the surface of the elastic substrate 111. The surface of the elastic substrate 111 on which the surface is activated passes through the drying device 717 to perform drying.

The silver compound and the reducing agent are sprayed through the nozzles 811 and 815 from the supply device and the silver nano-coating layer 113 is formed on the elastic substrate 111 by the reduction reaction between them. . Then, the silver nano-coating layer 113 is fixed to the surface of the elastic base 111 through the post-treatment apparatus 515, and then wound on the winding roll 600.

Through this process, a silver nano-coating layer 111 is formed on one side of the elastic base 111, and a silver nano-coating layer 115 is formed on the other side of the elastic base 111 through the same process, Thereby fabricating the silver nano-coating impregnated material 11 according to the invention.

The wound silver nanoparticle impregnated material 11 is cut into an appropriate size in a cosmetic container through an additional cutting process.

The silver nanocomposite impregnation material 11 proposed in the present invention is preferably formed on the surface of the carbon nanotubes 111 by the dip coating or spray coating method, have. The silver nanoparticle impregnated material 11 has antibacterial activity, does not contain heavy metals, contains only pure silver nanoparticles, and does not contain any environmental hormone-inducing substances such as phthalates.

Any method can be used as long as it is a method of forming a coating layer other than the above-mentioned method.

Cosmetic composition

The impregnation material proposed in the present invention means an object capable of storing materials therein. Preferably, the impregnation material of the present invention can store the cosmetic composition therein.

For example, the cosmetic composition may be used for cosmetics in which a cosmetic composition having fluidity is stored therein and applied to the skin using a separate tool or the like, but is not limited thereto.

The fluid cosmetic composition may include a skin, a toner, a lotion, a cream, a gel, a liquid foundation, a gel-type foundation, etc., and the formulation is not particularly limited. In addition to foundation, it may include blusher, lip make-up product, shading product, high lighter, primer, make-up base, CC or BB cream, fragrance and oil.

The cosmetic composition may have a viscosity of 3000 to 12000 CPS. When the viscosity of the cosmetic composition is less than 3000 CPS, it is difficult for the cosmetic composition to be impregnated in the cosmetic puff. If the viscosity of the cosmetic composition exceeds 12000 CPS, the cosmetic composition may not be discharged properly.

The cosmetics provided with the silver nano-coated impregnant according to the present invention have excellent antimicrobial activity due to the silver nano-coating consisting of pure silver of 99.9% or more pure water, so that the generated bacteria can be killed or the infection of the bacteria can be prevented . In addition, due to the silver nanoparticles, it has a luxurious appearance and can be used as a high-quality cosmetics having a high impregnation material.

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 illustrating the present invention, and the scope of the present invention is not limited to these examples.

[Example]

Example 1

A polyether-based urethane foam elastic substrate (thickness 10 mm, density 0.18 g / cm ³ , restoration ratio 95%) was mixed with 0.1M tin diboride chloride 0.1M and hydrochloric acid 0.1M and then immersed for about 2 minutes and cleanly washed with pure water. Then, for the full-scale silver impregnation, an aqueous solution of nitric acid and a reducing agent were prepared as follows.

The nitric acid silver solution was prepared by adding ammonia to a nitric acid silver solution (0.815 g / water 15 ml) and caustic soda solution (0.615 g / water 15 ml) to adjust the acidity to 11.5. The reducing agent was prepared by adding 1.36 g of glucose and 0.12 g of tartaric acid . These two materials were mixed at a mass ratio of 1: 1, and the polyether-based urethane foam substrate prepared above was immersed for about 30 seconds. The remaining remnants were washed again with pure water and then dried at 75 ° C for 30 minutes to obtain a polyurethane foam A silver nano-coating layer was formed on both sides.

Example 2

Polyether-based urethane foam (thickness 10 mm, density 0.18 g / cm ³ , restoration ratio 95%) was prepared and then pretreated in the same manner as in Example 1. Thereafter, an aqueous solution of ammonium nitrate silver nitrate (40 g / l) and an aqueous basic reducing agent solution containing glucose (80 g / l) were simultaneously sprayed onto the surface of the polyurethane foam to form a coating layer. Then, the remaining residues were washed again with pure water and dried at 75 ° C for 30 minutes to form a silver nano-coating layer on both sides of the polyurethane foam.

Comparative Example 1

The nano-coating layer was not formed, and the polyether-based urethane foam elastic substrate was used as it was.

Comparative Example 2

During the foaming process, 0.15 wt% of silver nanoparticles were added to prepare a polyester-based urethane foam.

Comparative Example 3

A polyester-based urethane foam in which a silver nano-coating layer was formed to a thickness of 500 nm was produced through sputtering.

Experimental Example 1: Sensory test

The cosmetics prepared in the above Examples and Comparative Examples were mounted on a container provided with a storage section, and then a liquid foundation composition (6000 cps) was injected to prepare a cosmetic product.

division ingredient (weight %) Oil component Oil component Ozokerite 3.0 Oil component Dicaprylyl carbonate 10 antiseptic Methyl paraben 0.1 Sunscreen Octylmethoxy cinnamate 7.0 Sunscreen Isoamyl-P-methoxy cinnamate 2.0 Pigment Distearmonium hectorite 1.5 Oily component Decamethylcyclopentasiloxane 16 Emulsifier Sorbitan sesquioleate 1.0 Emulsifier Lauryl Pie.Fi Fiji- 18.18 Meccone 1.5 Pigment Polymethylmethacrylate 5.0 Pigment Titanium Dioxide / Aluminum Hydroxide / Stearic Acid 7.0 Water component Water component water To 100 Moisturizer glycerin 8.0 Emulsifying stabilizer Salt 1.0 Water component incense 0.4 Sum 100

The cosmetic product was subjected to the following sensory evaluation. The sensory evaluation was carried out by selecting 50 women from 25 to 40 years old as a panel, using each sample for one week, and conducting a questionnaire evaluation.

<Evaluation Items>

- Filling capacity: Whether the cosmetic composition is well filled with the impregnation material or the time when 15 g of the cosmetic composition is filled

- Surfactant function: Whether the impregnated material is to carry the cosmetic composition homogeneously for a long period of time, the amount of the cosmetic composition to be taken when the cosmetic composition carried on the impregnated material is applied with a puff

- Discharge Capability: Whether or not an appropriate amount is discharged when taking the cosmetic composition from the impregnated material, and 15 g of the cosmetic composition are filled to measure the amount of the cosmetic composition possessed by the foam

- Appearance satisfaction: Personal rating

- Wetting: Whether it is possible to apply to the skin without the silver nanoparticles on the sponge.

- Durability: Whether the initial condition of the impregnant is maintained during long-term storage.

<Evaluation Criteria>

◎: Excellent

○: Excellent

B: Poor

X: very bad

Filling capacity Intelligence function Discharging ability Exterior satisfaction Brittle durability Example 1 ◎ ◎ ◎ ◎ ◎ ◎ Example 2 ○ ○ ◎ ◎ ◎ ◎ Comparative Example 1 ◎ ◎ ◎ △ - △ Comparative Example 2 ◎ ◎ △ △ ◎ △ Comparative Example 3 △ △ △ △ △ △

As shown in Table 2 above, a review was conducted with regard to appearance satisfaction and uniform discharge through a panel of 50 persons. As a result, the impregnated material coated with nanoparticles exhibited a generally high preference.

Experimental Example 2: Evaluation of physical properties

The properties of the impregnation materials prepared in the above Examples and Comparative Examples were measured and the results are shown in Table 3 below. At this time, the respective values are expressed as relative values based on the impregnated material of Comparative Example 1 in which the nano-coating is not formed.

- Hardness: Measured by ASKER hardness type F (Type F)

- Durability (Compressettion set): The value obtained by measuring the dimensional change after leaving the foam at a certain ratio under a high temperature-high humidity condition for a certain time (Evaluation method: JIS K-6301, unit:%)

- Restoration rate: Finger test specification, 30% of specimen thickness is compressed 10,000 times per minute at 300 times per minute

Hardness (%, relative value) Durability (%, relative value) Restoration rate (%) Comparative Example 1 100% 100% 100% Example 1 105% 120% 120% Example 2 110% 110% 110% Comparative Example 2 120% 90% 90% Comparative Example 3 130% 80% 80%

Experimental Example 3: Evaluation of silver nano-coated impregnated material

(1) Evaluation of heavy metal content

In order to confirm the heavy metals contained in the silver nanocomposite impregnated materials in the above Examples 1 and 2, according to a notification on the recommendation standards and test methods for the heavy metal content of the packaging materials [Ministry of Environment notification 2015-130, 2015.07.31] And the content thereof is shown in Table 4 below.

Heavy metal content Example 1 Example 2 Recommended Criteria Cadmium (Cd) <1 ppm <1 ppm - Lead (Pb) <1 ppm <1 ppm - Mercury (Hg) <1 ppm <1 ppm - Chromium VI (Cr VI) <1 ppm <1 ppm - Concentration sum <1 ppm <1 ppm Below 100

From the results of Table 4, it can be seen that the silver nano-coating impregnation material of the present invention has almost no heavy metal content, and almost only silver nanoparticles exist purely.

(2) Evaluation of phthalate content

In order to confirm the presence of the phthalate-based compounds contained in the silver nanoparticle impregnated material prepared, a notification on the recommended standards and test methods for heavy metal content of packaging materials [Ministry of Environment notification 2015-130, 2015.07.31] The phthalate compound was measured and its content (% by weight) is shown in Table 5 below.

matter Example 1 Example 2 DEHP (di- (2-ethylhexyl) phthalate Less than 0.01% Less than 0.01% DINP (diiso nonylphthalate) Less than 0.01% Less than 0.01% Benzylbutylphthalate (BBP) Less than 0.01% Less than 0.01% DIDP (diiso decylphthalate) Less than 0.01% Less than 0.01% DNO (di-n-octylphthalate) Less than 0.01% Less than 0.01% DBP (dibutylphthalate) Less than 0.01% Less than 0.01%

From the results of Table 5, it can be seen that the silver nanocomposite impregnant according to the present invention has almost no phthalate dissolution and is harmless to the human body.

(3) Dissolution test

In order to identify the phthalates contained in the silver nano-coated impregnated materials prepared in Examples 1 and 2, the standards and specifications of apparatus and container packaging (Food & Drug Safety Notification No. 2016-51, 2016.06.29) A dissolution test was performed. All the silver showed the same results in the nano-coated impregnated material, and the results are shown in Table 6 below.

Leach solution Content (mg / L) Content (mg / L) Lead (Pb) 4% acetic acid Less than 0.1 mg / L Less than 0.1 mg / L Potassium permanganate consumption Purified water Less than 1.0 mg / L Less than 1.0 mg / L Total elution 4% acetic acid 1.210 mg / L 1.210 mg / L n-heptane Less than 5 mg / L Less than 5 mg / L Purified water 13 mg / L 13 mg / L Isocyanate 4% acetic acid Less than 0.1 mg / L Less than 0.1 mg / L n-heptane Less than 0.1 mg / L Less than 0.1 mg / L Purified water Less than 0.1 mg / L Less than 0.1 mg / L antimony 4% acetic acid Less than 0.04 mg / L Less than 0.04 mg / L

From the results of Table 6, it can be seen that the silver nanocomposite impregnating materials proposed in the present invention have almost no elution of organic materials such as lead, potassium permanganate, isocyanate, and antimony.

(4) Antibacterial test

In order to confirm the antimicrobial effect of the silver nano-coated impregnated materials prepared in Examples 1 and 2, tests were conducted according to KD K 0693: 2011, and staphylococcus aureus and Klebsiella pneumoniae ), and the results obtained are shown in Table 7 below. 5 and 6 are photographs showing the results of Example 1. Fig. Here, (a) means Embodiment 1, and (b) means BLANK.

BLANK Example 1 Example 2 Staphylococcus aureus ATCC 6538 Initial number of bacteria 2.0 X 10 ^{`</sup> 2.0 X 10 <sup>`} 2.0 X 10 ^{`</sup> After 18 hours 3.0 X 10 <sup>6</sup> <10 <10 Bacteriostatic reduction rate - 99.9% 99.9% Klebsiella pneumoniae ATCC 4352) Initial number of bacteria 2.0 X 10 <sup>`} 2.0 X 10 ^{`</sup> 2.0 X 10 <sup>`} After 18 hours 2.8 X 10 ⁷ <10 <10 Bacteriostatic reduction rate 99.9% 99.9%

Referring to Table 7, FIG. 5, and FIG. 6, it was confirmed that the silver nano-coating impregnant according to the present invention has excellent antimicrobial activity against two strains easily generated in a cosmetic container.

50: Cosmetic container 10: Lower case
11: Impregnation material 13: Hinge section
15: engaging and fixing means 20: upper case
30: sealing cover 41: applicator
111: elastic substrate 113,115: silver nanocomposite layer
251: roller 300: substrate winding roll
415: Pretreatment tank 411: Pretreatment solution
413: Cleaning liquid 510: Dipping tank
511: silver compound 513: reducing agent solution
515: Post-treatment apparatus 711: Pretreatment solution nozzle
715: Cleaning liquid nozzle 717: Drying device
811: silver compound nozzle 815: reducing agent nozzle
515: Post-treatment apparatus 600: silver nano-coating impregnated material roll

Claims (8)

A coating layer having silver nanoparticles having a purity of 99% or more is formed on at least one of the elastic substrate and the upper and lower portions thereof,
Wherein the coating layer contains no binder, the heavy metal content is less than 1 ppm, and the phthalate compound content is less than 0.01 wt%
Wherein the coating layer is formed by a reduction reaction of a silver compound and a reducing agent on the surface of the elastic substrate.
The method according to claim 1,
Wherein the elastic base material comprises at least one material selected from the group consisting of natural rubber, synthetic rubber, and foamed polymer.
The method according to claim 1,
Wherein the silver nanoparticles have an average particle diameter of 1 to 100 nm.
The method according to claim 1,
Wherein the coating layer has a thickness of 1 to 1000 nm.
delete The method according to claim 1,
Wherein the coating layer is formed by a dip coating method or a spray coating method.
The method according to claim 1,
Wherein the coating layer has pores formed therein.
A cosmetic comprising a high-grade impregnating material for a cosmetic composition according to any one of claims 1 to 4, 6, and 7.

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