KR102427240B1 - Antimicrobial article - Google Patents

Abstract

The present invention provides a balance between resistance to molecular permeability and electron transfer ability, which are in a trade-off relationship, to provide a function to prevent deterioration of contents stored in a container even in various humidity and temperature ranges and an antibacterial function and at the same time to have the effect of providing a function to block odorous substances emitted from the skin at a part in contact with the skin.

Description

Antibacterial article {ANTIMICROBIAL ARTICLE}

The present invention relates to an antibacterial article, which provides a balance between resistance to molecular permeability and electron transport ability, which is in a trade-off relationship, to prevent deterioration of contents stored in a container even in various humidity and temperature ranges It relates to an antibacterial article that can provide antibacterial and antibacterial functions while also providing a function of blocking odor substances emitted from the skin in the part in contact with the skin.

Antimicrobial articles contain a variety of solid or liquid contents. Recently, the use of materials containing a lot of functional substances such as volatile components or moisture and natural extracts in the contents is increasing.

The contents of these highly volatile or high moisture, natural products may be easily evaporated or the contents may be altered depending on the material of the storage container.

This deterioration of contents may depend on the humidity or temperature when the container is opened, and also by the components of the container or contents, the ingredients added during the manufacturing process, and the contaminants remaining on the part in contact with the skin when using the contents. can happen

Accordingly, as shown in Korean Patent Registration No. 10-170144, technology development is mainly focused on coating the container with an antibacterial material to prevent deterioration of the contents.

However, due to the nature of the contents being in direct contact with the skin, it is desirable to minimize such deterioration and maintain the characteristics of the functional material during the period of use.

In particular, synthetic resins, which are mainly used as antibacterial products, are harmless by themselves as polymer materials, but there is a controversy about harmful substances caused by unreacted substances during polymerization and condensation, substances added during the manufacturing process, and generated substances and contaminants. In this regard, the elution of potentially hazardous substances beyond the allowable level is a problem. For example, environmental hormones and harmful gases are generated during disposal/incineration after use, and the problem of increasing treatment costs in the recycling process continues to occur.

Accordingly, it provides a balance between resistance to molecular permeability and electron transport ability, which is a trade-off relationship, to prevent deterioration of contents stored in a container even in a variety of humidity and temperature ranges, as well as antibacterial and skin care. There is still a need to develop a container that can provide additional functionality of blocking odor substances emitted from the skin at the touched part.

The present invention is to solve the problems of the prior art, and provides a balance of resistance to molecular permeability and electron transport ability, which is in a trade-off relationship, so that the contents stored in a container even in various humidity and temperature ranges. An object of the present invention is to provide an antibacterial product that can prevent deterioration and provide an antibacterial function while also providing a function to block odor substances emitted from the skin when the container is in contact with the skin.

The above and other objects of the present invention can all be achieved by the present invention described below.

In order to achieve the above object, the present invention,
An antimicrobial article comprising as a substrate an active material blended with a polymeric resin, comprising:
wherein the active material is selected from the group consisting of single layer graphene, multilayer graphene plate, graphene fluoride, hydrogenated graphene, nitrogenated graphene, boron doped graphene, nitrogen doped graphene, and combinations thereof;
The polymer resin is a polyethylene resin comprising polyethylene using a metallocene catalyst and linear low-density polyethylene (LLDPE) in a weight ratio of 5:95 to 95:5,
Among polypropylene resin, polystyrene resin, polyester resin, polyvinyl chloride resin, polyvinylidene chloride resin, polyethylene terephthalate resin, polyethylene furandicarboxylate resin, polylactic acid resin, acrylic resin, phenol resin, glass and copper mesh It further comprises one or more selected

The copper mesh body provides an antibacterial article, characterized in that it is a mesh body having a mesh structure of 20 mesh or more formed of copper filaments made of metal copper with a purity of 99 wt% or more or a copper alloy having a copper content of 60 wt% or more.

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The antibacterial article may be a container used for toys, household chemicals, food containers, masks, or baby textiles.

The household chemical product may be an elevator button, an antibacterial film for an elevator button, a non-exit button, an antibacterial film for a bus exit button, or a resin product in an air conditioner.

The antimicrobial article according to the present invention provides a balance of electron transport ability and resistance to molecular permeability, which is a trade-off by applying the active material to the antimicrobial article in a simple and economical way, as well as varying humidity and temperature. Even in the temperature range, it provides the function of preventing the deterioration of the contents stored in the container and the antibacterial function, while at the same time providing the function of blocking the odor substances emitted from the skin when the skin comes into contact with the container.

In addition, it is harmless to the human body and environmentally friendly, and has the effect of providing an air purification function and packaging aptitude.

1 is a plate culture of a container sample prepared according to the present invention. For reference, the plate culture photograph shows the control bacteria (Staphylococcus aureus), the Staphylococcus aureus of the Example 1 sample, E. coli of the Example 1 sample, and the control bacteria (E. coli) in a clockwise direction from the upper left.

The advantages and features of the present invention, and how to achieve them, are described. For reference, the present invention is not limited to the exemplary embodiments presented below, but may be implemented in various forms.

In addition, all terms (including technical and scientific terms) used in this description are used in the meaning that can be commonly understood by those of ordinary skill in the art to which the present invention belongs, unless otherwise defined. In addition, unless defined otherwise, terms defined in a commonly used dictionary are not to be interpreted excessively.

The present inventors have found that when an antibacterial article contains an active material having resistance to molecular permeability and electron transport ability, deterioration of the contents stored in the container under various environments such as processing, storage, distribution, and further use, etc. It was confirmed that it provides improved antibacterial properties, antifouling properties, and packaging suitability along with a function of blocking odor substances emitted from the skin at the part in contact with the skin even when the container is in contact with the skin, and thus the present invention has been completed.

An antimicrobial article according to an embodiment of the present invention is an antimicrobial article comprising an active material, wherein the active material is monolayer graphene, multilayer graphene plate, graphene fluoride, hydrogenated graphene, nitrogenated graphene, boron It is characterized in that it is selected from the group consisting of doped graphene, nitrogen doped graphene, and combinations thereof.

In the present description, the antibacterial article is not limited thereto, but may be a toy, a household chemical product, a food container, a mask, or a fabric for infants.

The household chemical product is not limited thereto, but may be, for example, an elevator button or an antibacterial film for it, an antibacterial film for a non-stop button, a resin product in an air conditioner or the like.

The food container is not limited thereto, but may be, for example, tableware, a side dish container, and the like.

The active material is blended with a polymer resin as a base material to use a material having resistance to molecular permeability and electron transport ability, which is stored in a container even in a range of humidity and temperature under various environments such as processing, storage, distribution, and further use. It is preferable because it can prevent deterioration of the contents and provide improved antibacterial properties, antifouling properties and packaging suitability along with a function of blocking odor substances emitted from the skin at the part where the skin touches the container even when the skin is in contact with the container.

The active material is, for example, selected from the group consisting of monolayer graphene, multilayer graphene plate, graphene fluoride, hydrogenated graphene, nitrogenated graphene, boron doped graphene, nitrogen doped graphene and combinations thereof. can be

The size of the active material may be, for example, 1 nm or more, 10 nm or more, or 30 nm or more, and as a specific example, 500 µm or less, 300 µm or less, or 100 µm or less.

Here, the size may mean a diameter, thickness, length, etc. depending on the shape.

The active material contained in the container is, for example, 45% by weight or less, specifically 0.01 to 45% by weight, preferably 0.1 to 35% by weight, more preferably 1 to 35% by weight, based on 100% by weight of the total material constituting the container. It may be included in the range of 20% by weight. If the above-mentioned range is satisfied, the absorption of the visible light region is increased, and the resistance to sufficient molecular permeability without adversely affecting the physical properties as an antibacterial article, the electron transfer ability, and the deterioration of the contents stored in the container even in various humidity and temperature ranges In addition to providing antibacterial and antibacterial functions, it can also provide a function to block odor substances emitted from the skin at the part where the skin comes into contact with the container during use.

The above-mentioned active material may further include a mesh having a network structure of 20 mesh or more formed of copper filaments made of metallic copper having a purity of 99 wt% or more or a copper alloy having a copper content of 60 wt% or more. Here, metallic copper with a purity of 99wt% or more or a copper compound with a copper content of 60wt% or more is known to be effective in preventing infectious diseases with a risk of cross-contamination due to the natural antibacterial properties of copper itself. Metallic copper with a purity of 99 wt% or more or a copper compound with a copper content of 60 wt% or more is called antimicrobial copper.

This antibacterial copper material is the only touch surface material registered with the US Environmental Protection Agency, and is known to eradicate more than 99.9wt% of bacteria within 2 hours.

On the other hand, the structure of the mesh body made of the copper filaments may be configured in a net type and a mesh type in order to improve permeability and increase the contact cross-sectional area.

By the action of the antimicrobial article of the present substrate configured as described above, when the antibacterial resin layer or the net-type or mesh-type antibacterial copper member knitted with copper filaments on one or both sides of the outer surface of the substrate is constituted, a metal having a purity of 99 wt% or more When a copper filament made of copper or a copper alloy having a copper content of 60 wt% or more is in contact with air on the surface of the antimicrobial resin layer or the substrate, the antibacterial resin layer or various types of parasitic propagation that can be propagated on the substrate by the antibacterial properties of copper itself It is possible to effectively eradicate and remove bacteria, bacteria, and fungi.

Furthermore, when the SiO ₂ -TiO ₂ type diatomic oxide is formed on the surface of the mesh, an additional synergistic effect may be provided.

In this case, the SiO ₂ -TiO ₂ type diatomic oxide forms a three-dimensional porous network structure in which cations are dispersed because the bonding relationship is not filled with the glassy SIO ₂ , for example, and TiO ₂ , a precursor of titanium ions, is incorporated or supported therein. It may be provided in the form

The SiO ₂ -TiO ₂ type diatomic oxide can also be prepared using a known sol-gel method or hydrothermal synthesis method. It may be included in a weight ratio, or a weight ratio of 1:1 to 1:5.

The silicone-based binder may be prepared using, for example, a silicone-based binder solution prepared using a tetraethyl orthosilicate precursor.

The titanium dioxide nanoparticles may be prepared by a sol-gel method using one or more precursors selected from the group consisting of tetrabutyl orthotitanate and titanium isopropoxide.

In this case, for solubility control and stabilization of titanium, B ₂ O ₃ , Na ₂ O, etc. may be further included.

The active material may include an inorganic oxide-based photocatalyst. The photocatalyst photoelectrochemically absorbs light energy to form excited electrons and holes therein. The formed electrons are released as negative ions based on the electron transport power of the active material.

The active material may have a specific surface area of, for example, 5 m ² /g or more, preferably 5 to 1000 m ² /g, and an average pore size of 50 nm or less or a particle size of 100 nm or less, or 1 to 100 nm. That is, as the number of generated anions increases, the decomposition performance of harmful substances may be further improved.

The photocatalyst can be applied to the decomposition of various harmful substances, for example, it can be used to treat harmful substances, odor substances, microorganisms, organic compounds, and the like.

For example, it is used for adsorption and/or photolysis of at least one of gas, liquid, and solid material, and may exhibit photoactivity by light energy including various rays such as sunlight, halogen lamp, xenon lamp, and light emitting diode.

Specifically, as the gas, acid gas, basic gas, acetaldehyde, VOC (Volatile Organic Compounds) such as ketones, aromatic/aliphatic hydrocarbons (paraffinic, olefinic, etc.), ozone gas, organic and inorganic It may be a gas, and more specifically, carbon dioxide, carbon monoxide, formaldehyde, hydrogen sulfide, methyl mercaptan, nitrogen, paraffin, olefin, and the like.

The liquid may be formaldehyde, acetaldehyde, benzene, toluene, methyl ethyl ketone, trichloroethylene, a disinfectant, oil, alcohol, phenol, etc., and the solid may be nanoparticles of 100 nm or less, but is limited thereto not.

In the present description, the container is, for example, polyethylene resin, polypropylene resin, polystyrene resin, polyester resin, polyvinyl chloride resin, polyvinylidene chloride resin, polyethylene terephthalate resin, polyethylene furandicarboxylate resin, polylactic acid resin, At least one selected from an acrylic resin, a phenol resin, and glass may be included as a substrate.

As the polyethylene resin, at least one selected from an ethylene-based alpha-olefin polymer, an ethylene polymer using a metallocene catalyst, a low-density ethylene polymer, a linear low-density ethylene polymer, a medium-density ethylene polymer, and a high-density ethylene polymer may be used for each layer.

The ethylene polymer using a metallocene catalyst may be a low molecular weight crystalline polyethylene obtained by polymerizing ethylene using a metallocene catalyst.

The linear low-density ethylene polymer may be a copolymer of ethylene and an alpha-olefin having 3 to 20 carbon atoms, wherein the alpha-olefin may be at least one selected from the group consisting of 1-butene, 1-hexene and 1-octene. have.

The linear low-density ethylene polymer has, for example, a density of about 0.850 to 0.940 g/cm ³ , and a melt index as measured by ASTM 1238 of about 0.01 to 100 g per 10 minutes.

The low-density ethylene polymer is not specific as long as it is an ethylene-based polymer known in the art, and is, for example, a polymer having a density of 0.910 to 0.930 g/cm ³ as measured by ASTM D-792.

The medium-density ethylene polymer is not specific as long as it is an ethylene-based polymer known in the art, and is, for example, a polymer having a density of 0.925 to 0.940 g/cm ³ as measured by ASTM D-792.

The high-density ethylene polymer is not specific as long as it is an ethylene-based polymer known in the art, and is, for example, a polymer having a density of 0.941 to 0.965 g/cm ³ as measured by ASTM D-792.

The metallocene catalyst-using ethylene polymer, low-density ethylene polymer, linear low-density ethylene polymer, medium-density ethylene polymer, and high-density ethylene polymer may each preferably be a homopolymer or a homopolymer.

As a specific example, the polyethylene resin may be preferably at least one selected from polyethylene and linear low-density polyethylene using a metallocene catalyst.

The polyethylene resin may include, for example, polyethylene using a metallocene catalyst and linear low-density polyethylene in a weight ratio of 0.1:99.9 to 99.9:0.1, preferably in a weight ratio of 5:95 to 95:5, in this case linear It is possible to provide a fracture reduction effect by improving the mechanical properties that were reduced when using low-density polyethylene alone.

As the polyethylene resin, a commercially available material may be used as long as it follows the definition of the present disclosure.

On the other hand, although there is a slight difference depending on the type of the polymer resin, the mechanical strength, elongation, elastic modulus and heat resistance are excellent, but antifogging properties such as fogging may be somewhat inferior.

Accordingly, a water-repellent functional group may be included in the polymer resin to provide an anti-fogging effect without using an anti-fogging agent including a fatty acid ester-based compound conventionally used. In this case, the water-repellent functional group may be, for example, a fluoromethyl group, and the water-repellent functional group may be provided by substituting some functional groups of the polymer resin, or a polymer resin having the water-repellent functional group may be separately added and provided.

The glass may be used alone, or may be provided in a form coated or compounded with the above-mentioned polymer resin.

In addition, the material and mixing ratio of the substrate may be variously performed in order to manufacture a known antibacterial article, and a detailed description thereof will be omitted.

In the present substrate, the antibacterial article may further contain, if necessary, 20 wt% or less of a natural antimicrobial agent in 100 wt% of the total constituting the antibacterial article, preferably 5 to 20 wt%, more preferably 5 to 10 wt% It may be included in weight %. When the above range is satisfied, there is a strong characteristic of bactericidal power, antibacterial power, and antifungal power, and it may be effective for Escherichia coli, Pseudomonas aeruginosa, MRSA, Candida, Ringworm, Staphylococcus aureus, virus, and the like.

The natural antibacterial agent may be contained in a concentrated form or in the form of an oil base containing a natural antibacterial agent in oil, and may provide an effect of high safety compared to organic antibacterial agents, long lasting antibacterial effect, and excellent heat resistance.

In the case of the antibacterial article of the present disclosure, known additives including the above-described additives may be added to increase the use or workability thereof. For example, for work efficiency, if a problem occurs during work, a slip agent is used for improvement, and if blocking occurs, an anti-blocking agent is added for improvement. make it happen

Recently, as functional products, biodegradable substances are added so that they can be decomposed after use, antioxidants are added to improve long-term storage, and antifogging agents are added to prevent fogging, so that products can be seen well.

In some cases, additives are used according to desired physical properties, such as prescribing a colorant when a product has required physical properties and requiring a color, or adding a UV stabilizer if the product is vulnerable to UV or the contents are sensitive to UV.

The content of the additive may be variously adjusted according to the material characteristics and the intended use of the packaging material, and is usually in the range of 0.1 to 10% by weight is appropriate. If it exceeds the above range, problems may occur in production and processability as a packaging material, and if it is less than the above range, it may be difficult to realize the functionality of the additive.

In the present description, the antibacterial article may be used as a container for storing various contents including, but not limited to, essence, lotion, cream, and mascara.

The method of manufacturing the antimicrobial article of the present substrate is not limited thereto, and may include, for example, preparing a substrate and an active material, and mixing and molding the substrate and the active material.

Here, since the base material and the active material are the same as those described above, repeated descriptions will be omitted.

The molding may be different for each material, content, and use, and a method known in the art may be used for molding conditions and selected molding methods.

The molding may be, for example, blow molding or injection molding, and if necessary, sheet molding or extrusion molding may be used.

For example, sheet molding may be performed while injecting the composition including the antibacterial material, and the obtained sheet may be placed on the substrate and sheet molding may be performed.

As another example, it may be prepared by a co-extrusion multilayer film blow method.

The molding conditions may be performed, for example, for 0.01 to 30 hours, or 1 to 10 hours under a temperature condition of 300° C. or less, or a temperature condition of 80 to 300° C.

The method presented above is a one-step synthesis method, not a multi-step synthesis method, and the active material is formed in a dispersed form in a matrix substrate by adding a substrate at the same time.

In addition, it can be molded through two-step heat treatment.

The heat treatment conditions may be different depending on the type of the soluble oxide and the type of the active material. For example, the heat treatment may be performed in two or more steps at a temperature of 50 to 900°C, preferably 100 to 800°C. A specific example includes the step of performing a first heat treatment at a temperature of 50 to 500° C. and a step of performing a second heat treatment at a temperature of 300 to 700° C., and each step may be heat treated at different temperatures. Each of the above steps is carried out for 1 minute to 20 hours, respectively, and may be carried out in an atmosphere of air or inert gas containing air, 20% or more, or 40% or more of oxygen. When the above-mentioned conditions are satisfied, not only partial or complete crosslinking can be formed, but also impurities can be effectively removed.

Then, as a second heat treatment step, a heat treatment step after the first heat treatment step is performed, and specifically, it may be a process of forming into a desired shape.

The container manufactured as described above can decompose and treat contaminants such as VOCs (volatile organic compounds), various organic contaminants, and various bacteria and bacteria.

The thickness of the antimicrobial article of the present substrate can be prepared in various ways depending on the film layer constituting it or according to the use, but is usually 1 to 30 mm, 1 to 20 mm, 1 to 15 mm, 2 to 30 mm, or 5 to 30 mm. can

Looking in more detail at one embodiment of manufacturing the antimicrobial article of the present substrate, for the convenience of content control, a masterbatch is used instead of an active material, and a coextrusion dry blow or blown (BLOWN) method is used in an extruder for film extrusion. Can be used.

First, the active material masterbatch and the base resin pellets according to the use of the product to be made are placed in the mixing space in the extruder and transferred while heating and mixing.

When each resin material of high and low concentration is sufficiently kneaded with the base resin and reaches a temperature of 150 to 300° C. suitable for extrusion, blow-type extrusion is performed through a co-extrusion jig. In this case, the blow speed may be 300 to 2000 rpm, or 600 to 1000 rpm. By controlling conditions such as extrusion jig temperature, blow speed, and air pressure, films of various thicknesses can be manufactured.

The film thus obtained can be processed by each processing machine to produce various antibacterial articles.

Hereinafter, the contents of the present invention will be described in more detail through specific examples, but these contents do not limit the scope of the present invention.

<Example>

For use in the following Examples and Comparative Examples, polypropylene and graphene were prepared, respectively.

Examples 1-2

First, the graphene was mixed with polyethylene (PE) or ABS in an amount of 10% by weight to prepare a PE master batch and an ABS master batch in the form of pellets, respectively.

Each of the obtained PE master batch and ABS master batch were used to prepare containers in the following manner.

Specifically, the PE master batch and the ABS master batch were respectively put into the mixing space in the extruder together with the polypropylene pellets, mixed and transferred by heating, and blow-type extrusion was performed through a co-extrusion jig. At this time, the extrusion jig temperature was 150 to 300 ℃, and the blow speed was 600 to 1000 rpm. A film having a thickness of 10 to 15 mm was prepared by controlling conditions such as extrusion jig temperature, blow speed, and air pressure.

The obtained film was processed by each processing machine to prepare an antibacterial article. At this time, there were no problems with the product such as processability and sealing power.

<Comparative Example 1>

An antibacterial article was manufactured by repeating the same process as in Examples 1 and 2, except that graphene was not used in Example 1.

<Test Example>

<Test Example 1: Antimicrobial test>

The antibacterial articles prepared in Examples 1 to 2 and Comparative Example 1 were filled with glycerin as a content, and then the antibacterial properties were evaluated.

Specifically, according to JIS Z 2801:2010 at the KOTITI Test Research Institute, a nationally accredited inspection institution, Staphylococcus aureus (S.a ATCC6538P) and Escherichia coli (E.c ATCC8739) were inoculated with a cultured solution and covered with the sample to attach it. After storage at 90% relative humidity and 35°C for 24 hours, the number of viable cells was measured.

The measurement results for the samples of Example 1 and Comparative Example 1 are shown in Table 1 below, and a plate culture photograph is shown in FIG. 1 .

Specifically, for plate culture, pure live cells isolated on a plate medium were taken as platinum ears, suspended in 10 mL of RCM liquid medium, and then using a spectrophotometer to have an absorbance in the range of 0.08 to 0.10 at 600 nm. After preparing a working culture, 100 ml was dispensed on a plate medium and spread evenly with a spreader.

A sterilized filter paper disk (8 mm) is placed on the surface of the RCM solid plate on which the strain is smeared, and 50 ml of a sample solution with a concentration of 50 mg/mL is dispensed and absorbed. took a picture

division Determination of viable counts of Staphylococcus aureus Measurement of the number of E. coli viable cells Comparative Example 1 (immediately after inoculation) 1.9 x 10 ⁵ 1.8 x 10 ⁵ Comparative Example 1 (after 24 hours) 1.4 x 10 ⁶ 1.4 x 10 ⁶ Example 1 (after 24 hr) <10 <10 antibacterial activity 5.1 5.2 Decrease rate (%) 99.9 99.9

Referring to Table 1 and FIG. 1, it was confirmed that almost no viable cell count was detected for each of the two types of bacteria after 24 hours in the Examples in which the active material according to the present invention was added.

On the other hand, in the case of Comparative Examples in which the active material was not added, the reduction in the number of viable cells after 24 hours was not large, and therefore, it is inferred that improved bacterial removal was exhibited due to the addition of the active material.

<Test Example 2: Material/dissolution test>

The material/dissolution test for each of the antimicrobial articles prepared in Examples 1 to 2 and Comparative Example 1 was measured.

Specifically, the results obtained by requesting KOTITI according to the standard specifications of instruments and containers and packaging are shown in Table 2 below.

For reference, the consumption of potassium permanganate was measured using distilled water as the leaching solution, 4% acetic acid for the evaporation residue, and 4% acetic acid for 1-hexene and 1-octene as the leaching solution.

ingredient Test Inspection Standards Example 1 Example 2 Heavy metal content (lead mg/l) 1 or less non-detection non-detection Potassium permanganate consumption (mg/l) below 10 One 2 Total dissolution (mg/l) Water 30 or less, 4% acetic acid 30 or less Non-detection of 5.4% acetic acid in water Non-detection of 3.4% acetic acid in water Total dissolution (mg/l) 150 or less (remark n-heptane) 14 8 1-Hexene (mg/l) Water 3 or less, 4% acetic acid 3 or more, n-heptane 3 or less No water detection 4% No acetic acid detection No n-heptane detection No water detection 4% No acetic acid detection No n-heptane detection 1-octene (mg/l) Water 15 or less, 4% acetic acid 15 or less, n-heptane 15 dlgk No water detection 4% No acetic acid detection No n-heptane detection No water detection 4% No acetic acid detection No n-heptane detection Lead, Cadmium, Mercury and Hexavalent Chromium (mg/kg) 100 or less One 3 Judgment result suitable/unsuitable fitness fitness

*Heavy metal content (lead) - limit of detection = 0.1 mg/L

As shown in Table 2, according to the present invention, it was confirmed that both the material test and the dissolution test were satisfied.

<Test Example 3: Environmental Hormone Test>

Environmental hormones were measured for the antimicrobial article samples prepared in Examples 1 to 2 and Comparative Example 1, respectively.

Specifically, by requesting KOTITI, each sample was extracted with an organic solvent and analyzed by GC/MSD to measure the phthalate-based plasticizer and bisphenol A contents, and are shown in Tables 3 and 4 below.

ingredient Example 1 Example 4 Butylbenzylphthalate (BBP) not detected not detected Dibutylphthalate (DBP) not detected not detected Di-(2-ethylhexyl)phthalate (DEHP) not detected not detected Di-n-octylphthalate (DNOP) not detected not detected Di-isononylphthalate (DINP) not detected not detected Diisodecylphthalate (DIDP) not detected not detected

*Not Detected: Less than 0.005%

ingredient Example 1 Example 2 Bisphenol A (mg/l) No water detection, no detection of 4% acetic acid, no detection of n-heptane No water detection, no detection of 4% acetic acid, no detection of n-heptane

As shown in Tables 3 and 4, it was confirmed that bisphenol A and phthalate were not detected according to the present invention.

<Test Example 4: Anion Emission Test>

In order to test the anion emission amount for the prepared container sample, the sample of Example 1 according to the present invention obtained above was measured based on the following.

(1) Test method: KFIA-FI-1042

(2) Specimen: 255 X 350 mm

(3) Measurement method: Using a charged particle measuring device, it was tested at room temperature of 20°C, humidity of 34%, and anion water of 104/cc in the atmosphere. did.

As a result, it was confirmed that the amount of anion released (ions/cc) measured in the sample obtained from Example 1 was 198, and it can be seen that the anion was released in Example 1 of the present invention.

Claims (5)

An antimicrobial article comprising as a substrate an active material blended with a polymeric resin, comprising:
wherein the active material is selected from the group consisting of single layer graphene, multilayer graphene plate, graphene fluoride, hydrogenated graphene, nitrogenated graphene, boron doped graphene, nitrogen doped graphene, and combinations thereof;
The polymer resin is a polyethylene resin comprising polyethylene using a metallocene catalyst and linear low-density polyethylene (LLDPE) in a weight ratio of 5:95 to 95:5,
Among polypropylene resin, polystyrene resin, polyester resin, polyvinyl chloride resin, polyvinylidene chloride resin, polyethylene terephthalate resin, polyethylene furandicarboxylate resin, polylactic acid resin, acrylic resin, phenol resin, glass and copper mesh It further comprises one or more selected
The copper mesh body is an antibacterial article, characterized in that the mesh body having a mesh structure of 20 mesh or more formed of copper filaments made of metal copper with a purity of 99 wt% or more or a copper alloy having a copper content of 60 wt% or more. delete delete The method of claim 1,
The antibacterial article is an antibacterial article, characterized in that it is a container used for toys, household chemical products, food containers, masks, or infant textiles. 5. The method of claim 4,
The household chemical product is an antibacterial product for an elevator button, an antibacterial film for an elevator button, an anti-bacterial film for a non-exit button, an anti-bacterial film for a bus exit button, or a resin product in a heating and cooling unit.

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