KR102058075B1 - Filter Using Mn Oxide Catalyst And Mask Including The Same - Google Patents

Abstract

The present invention relates to a mask including a filter using a manganese catalyst. The mask includes a mask body formed to cover the nose and mouth of a face, a filter part connected to the mask body and fixed to the ears of a user and a filter part formed on one surface of the mask body and filtering fine materials. The filter part uses a manganese catalyst to decompose ozone.

Description

Filter Using Mn Oxide Catalyst And Mask Including The Same}

The present invention relates to a mask including a filter using a manganese catalyst, and more particularly to a filter using a manganese catalyst capable of decomposing ozone using a filter prepared by electrospinning a polymer and a manganese catalyst. It is about a mask to say.

Recently, dust and fine dust in the air has increased due to environmental pollution. As such, air pollution is a serious problem.

Due to air pollution, the demand for masks is steadily increasing.

In general, face masks cover the nose and mouth to prevent inhalation and scattering of dust, germs and heavy metals.

Facial masks can prevent cold air or dust from getting into your body through your nasal cavity or mouth.

Facial masks are usually made of gauze. In addition, the face mask may be made of cotton, non-woven fabric, paper and natural materials.

However, the conventional mask is ozone, bacteria having a size of usually 0.1㎛ ~ 10㎛, fine dust can pass through, there is a problem that does not become an essential preventive method.

To solve this problem, development of a mask that can effectively block ozone has been sought.

In the prior art, an invention such as Korean Patent Publication No. 10-2010-0043682 (name of the invention: a face mask provided with an attachment fixing part) has been proposed.

In order to solve the problems as described above of the present invention, in particular to provide a mask comprising a filter using a manganese catalyst that can decompose ozone using a filter prepared by electrospinning a polymer and a manganese catalyst. have.

In order to solve the above problems, the present invention is a mask body formed to cover the nose and mouth of the face; A fixing part connected to the mask body and fixed to an ear of a user; And a filter part formed on one surface of the mask body to filter out fine materials, wherein the filter part comprises a mask including a filter using a manganese catalyst, wherein a manganese catalyst is used to decompose ozone. Can provide.

The filter unit may be coated with manganese nanofibers prepared by electrospinning a solution in which a polymer and a manganese catalyst are dissolved in a panel network.

The polymer is a polyester (POLYESTER), polyurethane (PU: POLYURETHANE), polyvinylidene fluoride (PVDF: POLYVINYLIDENE FLUORIDE), polyvinyl alcohol (PVA: POLYVINYL ALCOHOL) and nylon (NYLON) resin It may include at least one.

The mask body may include a first guide part formed on one surface of the mask body; And a second guide part formed on one surface of the mask body so as to face the first guide part with respect to the center of the mask body, wherein the filter part comprises: a first fastening part fastened to the first guide part; ; And a second fastening part fastened to the second guide part.

The mask body may include a first male Velcro portion formed on one surface of the mask body; And a second male Velcro portion formed on one surface of the mask body so as to face the first male Velcro portion with respect to the center of the mask body. 1 arm Velcro portion; And a second female Velcro portion coupled to the second male Velcro portion.

The filter unit, a filter layer made of a manganese catalyst; And an inner surface layer formed between the filter layer and the face to prevent the manganese-based catalyst formed on the filter layer from touching the face of the user.

And an outer surface layer formed between the filter layer and the mask body to prevent the manganese catalyst formed on the filter layer from contacting the mask body.

And an auxiliary filter formed between the filter layer and the inner surface layer or between the filter layer and the outer surface layer. The auxiliary filter may have a structure in which a diatomaceous earth ceramic layer, a Hanji layer, an activated carbon layer, and an anti-dust layer are stacked. .

The mask body may be made of any one material of cloth, polypropylene (POLYPROPYLENE), elastomer (ELASTOMER) and silicone (SILICONE).

The mask including a filter using a manganese catalyst according to an embodiment of the present invention may provide a means for decomposing ozone to generate oxygen radicals by using a manganese catalyst.

In addition, the mask including a filter using a manganese-based catalyst according to an embodiment of the present invention has an effect of preventing the inhalation of contaminants in the air into the wearer's body.

In addition, the mask including a filter using a manganese-based catalyst according to an embodiment of the present invention is easy to attach and detach the filter, there is an effect that the user's convenience is increased.

1 is a view showing a mask including a filter using a manganese catalyst according to a first embodiment of the present invention.
2 is a view showing a mask including a filter using a manganese catalyst according to a second embodiment of the present invention.
3 is a view showing a mask including a filter using a manganese catalyst according to a third embodiment of the present invention.
4 is a cross-sectional view of a mask including a filter using a manganese catalyst according to an embodiment of the present invention.
5 is an explanatory diagram showing a manufacturing process of a filter using a manganese catalyst according to an embodiment of the present invention.
6 is a view showing a decomposition principle of ozone (O ₃ ) using a filter using a manganese catalyst according to an embodiment of the present invention.

Hereinafter, the description of the present invention with reference to the drawings is not limited to specific embodiments, and various changes may be made and various embodiments may be provided. In addition, the contents described below should be understood to include all transformations, equivalents, and substitutes included in the spirit and technical scope of the present invention.

In the following description, terms such as “first” and “second” are terms used to describe various components, and are not limited in themselves, and are used only to distinguish one component from other components.

Like reference numerals used throughout the present specification refer to like elements.

As used herein, the singular forms "a", "an" and "the" include plural forms unless the context clearly indicates otherwise. In addition, the terms "comprise", "comprise" or "have" described below are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist. It is to be understood that it does not exclude in advance the possibility of the presence or the addition of one or more other features or numbers, steps, actions, components, parts or combinations thereof.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 6.

1 is a view showing a mask including a filter using a manganese catalyst according to a first embodiment of the present invention.

Referring to FIG. 1, a mask including a filter using a manganese catalyst according to an embodiment of the present invention may include a mask body 100, a fixing part 200, and a filter part 300.

The mask body 100 may be formed to cover the nose and the mouth of the user's face.

The mask body 100 may be formed of any one of polypropylene (POLYPROPYLENE), elastomer (ELASTOMER) and silicon (SILICONE).

In addition, the mask body 100 may be formed of a cloth.

The mask body 100 will be described with reference to FIGS. 2 and 3 to be described later.

The fixing part 200 may be connected to the mask body 100. The fixing part 200 may be formed to be fixed to a user's ear. The fixing part 200 may be formed in plural.

The filter unit 300 may be formed on one surface of the mask body 100. In addition, the filter unit 300 may be formed on the other surface of the mask body 100.

In addition, the filter unit 300 may be formed on one surface and the other surface of the mask body 100, respectively.

The filter unit 300 may filter out fine dust or contaminants mixed in the air sucked by the user.

In addition, the filter unit 300 may be manufactured using a manganese catalyst to decompose ozone (O ₃ ). The filter unit 300 may be manufactured using a polymer and a manganese catalyst.

The filter unit 300 will be described with reference to FIGS. 2 to 6 to be described later.

In another embodiment, the material of the fixing part 200 may be formed of any one of polyester (POLYESTER), polypropylene (PP), polyvinyl chloride (PVC), Oxford (Oxford) and polyethylene (PE). have. In addition, the material of the fixing part 200 may be used, such as vinyl, cloth, urethane and PVC. In addition, the outer surface of the fixing part 200 may be coated with a waterproofing agent. The waterproofing agent may be selected from at least one of polyacrylic, polyurethane and polysilicon.

Accordingly, the fixing part 200 may not be wet with sweat generated from the ear or the face of the user.

As such, the mask according to the embodiment of the present invention has an effect of preventing the discomfort caused by sweat.

2 is a view showing a mask including a filter using a manganese catalyst according to a second embodiment of the present invention.

Referring to FIG. 2, a mask including a filter using a manganese catalyst according to a second embodiment of the present invention includes a mask body 100, a first guide part 110, a second guide part 120, and a fixing part. The filter 200 may include a filter unit 300, a first coupling unit 310, and a second coupling unit 320.

Referring to FIG. 2, a mask including a filter using a manganese catalyst according to a second embodiment of the present invention includes or includes a first guide part, a second guide part, a first fastening part, and a second fastening part. Except that the embodiment is formed in a structure that includes the same components as in FIG. Therefore, like reference numerals refer to like elements, and repeated descriptions of the same elements will be omitted, and description will be made based on the changed elements.

The mask body 100 may include a first guide part 110 and a second guide part 120.

The first guide part 110 may be formed on one surface of the mask body 100. The first guide part 110 may have a structure in which a guide groove is formed to fit the first fastening part 310.

The second guide part 120 may be formed on one surface of the mask body 100 to face the first guide part 110 with respect to the center of the mask body 100. The second guide part 120 may have a structure in which a guide groove is formed so that the second fastening part 320 is fitted into the second guide part 120.

The filter part 300 may include a first fastening part 310 and a second fastening part 320.

The first fastening part 310 may be fastened to the first guide part 110. The first fastening part 310 may have a structure in which a guide protrusion is formed to fit into a guide groove formed in the first guide part 110.

The second fastening part 320 may be fastened to the second guide part 120. The second fastening part 320 may have a structure in which a guide protrusion is formed to fit into a guide groove formed in the second guide part 120.

As such, the present invention includes the first guide part 110, the second guide part 120, the first fastening part 310, and the second fastening part 320, thereby providing a mask body 100 and a filter part ( 300 can be easily attached and detached from each other.

3 is a view showing a mask including a filter using a manganese catalyst according to a third embodiment of the present invention.

Referring to FIG. 3, a mask including a filter using a manganese catalyst according to an embodiment of the present invention includes a mask body 100, a first male Velcro portion 130, a second male Velcro portion 140, and a fixing portion. The filter 200 may include a filter unit 300, a first arm Velcro unit 330, and a second arm Velcro unit 340.

Referring to FIG. 3, a mask including a filter using a manganese catalyst according to a third embodiment of the present invention may include a first male Velcro portion, a second male Velcro portion, a first female Velcro portion, and a second female Velcro portion. It includes the same components as in FIG. 1 except that the embodiment is formed or configured with an additional structure. Therefore, like reference numerals refer to like elements, and repeated descriptions of the same elements will be omitted, and description will be made based on the changed elements.

The mask body 100 may include a first male Velcro portion 130 and a second male Velcro portion 140.

The first male Velcro part 130 may be formed on one surface of the mask body 100. The first male Velcro portion 130 is a member coupled to the first female Velcro portion 330.

The second male Velcro part 140 may be formed on one surface of the mask body 100 to face the first male Velcro part 130 with respect to the center of the mask body 100. The second male Velcro portion 140 is a member coupled to the second female Velcro portion 340.

The filter unit 300 may include a first arm Velcro portion 330 and a second arm Velcro portion 340.

The first female Velcro portion 330 may be fastened to the first male Velcro portion 130.

The second arm Velcro portion 340 may be fastened to the second male Velcro portion 140.

Here, the velcro is a member in which the hook and the hook are attached to each other in pairs.

As described above, the present invention includes the first body Velcro portion 130, the second male Velcro portion 140, the first female Velcro portion 330 and the second female Velcro portion 340, thereby the mask body 100 And filter unit 300 can be easily attached and detached from each other.

4 is a cross-sectional view of a mask including a filter using a manganese catalyst according to an embodiment of the present invention.

Referring to FIG. 4, the structure of a mask including a filter using a manganese catalyst may be confirmed.

The filter unit 300 may include an inner surface layer 400, a filter layer 500, and an outer surface layer 600.

The filter layer 500 may be made of a manganese catalyst. A process of manufacturing the filter layer 500 will be described with reference to FIG. 5 to be described later.

The inner layer 400 may serve to prevent the manganese-based catalyst formed on the filter layer 500 from touching the face of the user. The inner layer 400 may be formed on one surface of the filter layer 500. The inner layer 400 may be formed between the filter layer 500 and the user's face.

The outer layer 600 may serve to prevent the manganese-based catalyst formed on the filter layer 500 from touching the mask body 100. The outer layer 600 may be formed between the filter layer 500 and the mask body 100. The outer surface layer 600 may be formed on the other surface of the filter layer 500.

In another embodiment, the filter unit 300 may further include an auxiliary filter (not shown).

The auxiliary filter may be formed between the filter layer 500 and the inner surface layer 400. In addition, the auxiliary filter may be formed between the filter layer 500 and the outer surface layer 600.

The auxiliary filter may have a structure in which a diatomaceous earth ceramic layer, a Hanji layer, an activated carbon layer, and an anti-dust layer are stacked.

The diatomaceous earth ceramic layer can emit far infrared rays and anions. In addition, the diatomaceous earth ceramic layer can deodorize and antibacterial air that the user inhales and discharges.

Hanji layer has an effect that can quickly absorb the humidity of the air in contact with the mask and release to the outside.

Activated carbon layer is effective to remove the smell coming from the outside of the mask.

The anti-yellowing layer may block fine particles having a particle size distribution of 0.04 to 1.0 μm (about 0.6 μm on average). The anti-yellowing layer may have a structure composed of a plurality of nonwoven fabrics.

5 is an explanatory diagram showing a manufacturing process of a filter using a manganese catalyst according to an embodiment of the present invention.

Referring to Figure 5, the manufacturing process of the filter using a manganese catalyst according to an embodiment of the present invention are as follows.

The present invention can be prepared using a manganese-based catalyst using the manganese-based nanofiber manufacturing apparatus 10.

Manganese-based nanofiber manufacturing apparatus 10 is a spinner (not shown), coating liquid (not shown), injection nozzle 20, solution tank (not shown), power supply (not shown), collector ( The drawing may include a pump, a pump (not shown), and a voltage generator (not shown).

Nanofiber manufacturing apparatus may be largely composed of a high voltage power supply (POWER SUPPLY), spinneret (SPINNERET) and a collecting plate (COLLECTOR) for collecting the fibers.

Through the pump, the polymer solution is controlled at an inflow rate at a constant speed and discharged through a nozzle serving as a spinneret. At this time, one electrode is charged by injecting electric charge into the polymer solution discharged by connecting a power supply and a nozzle tip. And the opposite electrode is connected to the dust collecting plate. Accordingly, a hemispherical shape is formed by the polymer surface tension discharged to the nozzle end, and when a high voltage of 0 to 30 kV is applied to the nozzle tip, the liquid polymer droplets can be stretched into a cone-shaped funnel shape. (TAYLOR CONE shape)

Before the liquid jet (JET) reaches the dust collecting screen during the spinning process, drawing and volatilization of the solvent are accompanied, thereby obtaining fine fibers randomly arranged on the upper part of the dust collecting plate.

The principle of manufacturing nanofibers using the manganese-based nanofiber manufacturing apparatus 10 is that the manganese-based nanofibers are injected into the spray nozzles 20 using a pump or a metering pump in a solution tank in which a composition for forming manganese-based nanofibers is stored. The composition for formation is supplied in a fixed amount. Thereafter, the manganese-based nanofiber forming composition may be sprayed through the spray nozzle 20 to produce nanofibers.

The injection nozzle 20 may use a voltage of 5 ~ 20kV.

Here, the release rate of the composition for forming nanofibers through the spray nozzle 20 is preferably 0.20 to 1.8 l / hr, more preferably 0.30 to 1.15 l / hr.

The manganese-based nanofiber manufacturing apparatus 10 may be an electrospinning apparatus.

For reference, electrospinning uses an electrostatic spray phenomenon in which fine filaments are released from the surface of the droplets by applying a high tension to the droplets suspended at the end of the capillary tube. Electrospinning is to take advantage of the phenomenon that the fibers are formed when the electrostatic force is applied to the polymer solution or the melt having a viscosity.

Manganese-based nanofiber manufacturing apparatus 10 can produce a three-dimensional web-shaped fibers having a small diameter and a large specific surface area compared to the existing fibers.

In addition, the manganese-based nanofiber manufacturing apparatus 10 may be used a high voltage method and a low voltage method.

The low voltage method can be used if there is air. In addition, air may be supplied together with the liquid (polymer solution).

The high voltage method can be used without air.

Voltage is another factor that affects the diameter of the fiber. Higher voltages can introduce more polymer solutions into the JET to obtain fibers with larger diameters. However, it also exhibits different behavior depending on the mechanical properties and conductivity of the polymer.

For example, BISOPHENOL-A POLYSULPHONE, a material similar to SILK, tends to have a thinner fiber diameter with increasing voltage.

In addition, by adding a salt to the polymer solution, it can be controlled to have a higher charge density on the surface of the jet (JET) discharged during spinning. In this case, the diameter of the spun fiber is reduced.

High surface charge densities induce high mobility of ions resulting in high electrostatic repulsion in the jet. This is due to the increase in the stretching force so that fibers of a smaller diameter are obtained.

In addition, an electric field may be applied between the radiator and the collector by the high voltage generator. At this time, if the intensity of the applied electric field is too low, it may be difficult to produce a nanofiber of uniform thickness because the electrospinning composition is not continuously discharged. In addition, since the nanofibers formed after being spun cannot be smoothly focused on the collector, it may be difficult to manufacture a fiber aggregate.

On the other hand, when the strength of the electric field is too high, it may be difficult to obtain a fiber aggregate having a normal shape because the nanofibers are not accurately seated in the collector. Accordingly, the intensity of the electric field applied between the radiator and the collector may be set to 20 to 3500 V / cm. Moreover, it is good that it is 2000-3000V / cm.

Spinning process is preferably performed at a humidity of 30 to 40% at room temperature.

Through the spinning process, nanofibers having a uniform fiber diameter can be produced. Nanofibers having an average diameter of 50 nm or more and less than 1000 nm can be produced.

The nanofibers may be arranged randomly on the collector to form a fiber assembly, i.e., a web in which the nanofibers are three-dimensionally irregular and discontinuously arranged.

The injection nozzle 20 is a component to which a mixed solution in which a polymer and a manganese catalyst are dissolved is injected. A plurality of injection nozzles 20 may be used.

In addition, when two injection nozzles 20 are formed, they may be disposed to be inclined to form an angle of mutual convergence at the same point of the panel net 2 and the spaced apart position. Accordingly, the manganese-based nanofibers sprayed through the first spray nozzle and the second spray nozzle already collide with each other before they are applied to the surface of the panel net 2 to generate turbulence in the nanofibers collided with each other. A thin, uniform coating layer may be formed on the surface of the net 2. In addition, the nanofiber coating layer prepared as described above may improve tensile strength.

The manganese-based nanofiber manufacturing apparatus 10 may use a method of applying a high voltage between the spray nozzle 20 and the panel net 2 or the collector when the polymer (polymer) solution or melt is at the end of the spray nozzle 20. have. In other words, by applying a high voltage of more than the threshold voltage beyond the surface tension of the polymer solution, the instability of the polymer solution in the electric field to increase the nano-induced by the occurrence of bending and cracking of the polymer is collected in the form of a nonwoven fabric on the collector.

As such, the nanofibers produced using electrospinning can easily obtain a nanofiber web having a fine fiber diameter of several to several hundred nanometers in thickness.

Specifically, the method of manufacturing manganese-based nanofibers is as follows.

A spinning solution is prepared by dissolving a polymer (polymer) resin and a manganese catalyst in a solvent.

It is recommended that the polymer be a Harmless material. The polymer may comprise at least one of polyester (POLYESTER), polyurethane (PU: POLYURETHANE), polyvinylidene fluoride (PVDF: POLYVINYLIDENE FLUORIDE), polyvinyl alcohol (PVA: POLYVINYL ALCOHOL) and nylon (NYLON) resin have.

Other polymers include polylactic acid (PLA), polypropylene (PP), polyvinyl acetate (PVAc), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polyethylene naphthalate (PEN), polyamide ( PA), polyetherimide (PEI), polycaprolactone (PCL), polylactic acid glycolic acid (PLGA), silk and cellulose, and the like.

The weight percent of the polymer can be adjusted to maintain the viscosity to the extent that electrospinning is possible. Therefore, the weight% of the polymer may be 3 to 20 weight% based on the polymer solution.

In addition, as a solvent used to melt a polymer, N, N- dimethylformamide (DMF) and methyl ethyl ketone (MEK) can be mixed and used.

Distilled water may also be used as a solvent used to dissolve the polymer.

Moreover, a solvent can mix and use an inorganic solvent or an organic solvent.

When preparing a spinning solution by dissolving a polymer (polymer) resin and a manganese catalyst in a solvent, the blending amount of the spinning solution is 3-20 wt% of the polymer resin, 2.5-15 wt% of the manganese catalyst, and 65-94.5 wt% of the solvent. Can be.

 When the blending amount of the manganese catalyst is less than 2.5% by weight, the improvement of ozone decomposition performance may be insignificant. In addition, when the blending amount of the manganese-based catalyst exceeds 15% by weight, the compatibility with the polymer is lowered, making it difficult to manufacture the filter layer.

Thereafter, the prepared spinning solution may be electrospun on the panel net 2 to form manganese-based nanofibers.

The diameter of the manganese-based nanofibers may be formed from 5 nm (nanometer) to 150 μm (micrometer).

If the diameter of the manganese-based nanofibers is less than 5 nm, the tensile strength of the manganese-based nanofibers may be lowered, making it difficult to construct the filter unit 300 or the filter layer 500. In addition, there is a possibility that the breathability is lowered and the user may feel uncomfortable breathing.

In addition, when the diameter of the manganese-based nanofibers exceeds 150 μm, the interval between the manganese-based nanofibers is increased, whereby the possibility of penetration of a fine material or a pollutant of a small size between these gaps (pores) increases. Accordingly, a problem may occur in which collection efficiency is lowered.

In an embodiment, the manganese-based nanofibers 1 coated on the panel net 2 may be used as the filter layer 500 like the panel net 2.

As another example, only the manganese-based nanofibers 1 coated on the panel net 2 may be removed and used as the filter layer 500.

In addition, during manganese-based nanofiber spinning, silver nano (SILVER NANO) or titanium dioxide (TiO ₂ ) particles may be added. Since the manganese-based nanofibers include silver nano (TiO ₂ ) or titanium dioxide (TiO ₂ ) particles, antibacterial and deodorizing functions may be improved.

As a result, ozone passing through the filter unit 300 or the filter layer 500 may be filtered.

In addition, as a catalyst, calcium (Ca), magnesium (Mg), potassium (K), strontium (Sr), barium (Ba), phosphorus (P), yttrium (Y), iron (Fe), cobalt (Co), Rhodium (Rh), iridium (Ir), nickel (Ni), palladium (Pd), platinum (Pt), copper (Cu), silver (Ag), gold (Au), zinc (Zn), aluminum (Al), Any one or more metals selected from molybdenum (Mo), bismuth (Bi) and telenium (Te) or oxides thereof may be used.

In addition, the oxide may consist of a controlled phase and a controlling phase, and may have a dual structure in which a part of the controlled phase is exposed to the surface. The advantage of such a structure is that as the electron movement between the controlled phase and the controlled phase proceeds smoothly, the synergistic effect of each other is increased. Accordingly, the antibacterial effect of the mask can be increased.

6 is a view showing a decomposition principle of ozone (O ₃ ) using a filter using a manganese catalyst according to an embodiment of the present invention.

Referring to FIG. 6, the decomposition principle of ozone (O ₃ ) using a filter using a manganese catalyst may be confirmed.

Filters using manganese-based catalysts can decompose ozone in the air on the surface of the nanocatalyst. In addition, oxygen radicals are generated in this process to decompose fine harmful substances.

When O ₃ is in contact with a metal product such as a manganese catalyst, O ₃ may be decomposed by the reaction scheme of FIG. 6 on the surface of the manganese catalyst as shown in FIG. 6. The decomposed O ₃ is then converted into active oxygen species (oxygen radicals).

In addition, acetaldehyde, which is a pollutant in the air, may be oxidized to CO ₂ and H ₂ O, which are harmless to the human body, by the acid radicals generated during the decomposition of O ₃ .

Other organic material (VOCs) materials can be oxidized in a similar manner.

Hereinafter, a mask including a filter using a manganese catalyst of the present invention will be described in more detail with reference to the following examples. The measurement result of the mask and the comparative example which contain the filter using the manganese catalyst used in the Example are shown by table.

However, these embodiments are only presented to understand the content of the present invention, but the scope of the present invention is not limited to these embodiments.

Comparative Example 1

In order to manufacture the filter layer, a polyurethane solution (10 wt% PU, 45 wt% DMF, 45 wt% MEK) was sprayed through the first spray nozzle. The first spray nozzle sprayed a total of 5 mL at a voltage of 15 kV. Nylon 6 (Nylon-6 20wt%, Formicacid 80wt%) was sprayed through the 2nd injection nozzle. The second injection nozzle was sprayed a total of 5mL at a voltage of 25kV.

The filter layer thus prepared was attached to a mask body (nonwoven fabric having a thickness of 5 mm, Bentex Co., Ltd.) to prepare a mask of Comparative Example 1.

Example 1

In order to prepare a filter layer, a solution (MnO ₂ 5 wt%, PU 5wt%, DMF 45wt%, MEK 45wt%) of a manganese catalyst and a polyurethane solution was sprayed through the first spray nozzle. The first spray nozzle sprayed a total of 5 mL at a voltage of 15 kV. Through the second injection nozzle, a solution in which a manganese catalyst and nylon 6 were mixed (MnO ₂ 10 wt%, Nylon-6 10wt%, Formicacid 80wt%) was sprayed. The second injection nozzle was sprayed a total of 5mL at a voltage of 25kV.

The filter layer thus prepared was attached to a mask body (5 mm thick nonwoven fabric, Bentex Co., Ltd.) to prepare a mask of Example 1.

1. Antibacterial test

The antimicrobial activity was performed on the mask of Example 1 and the mask of Comparative Example 1, and the measurement results are shown in Table 1 below. The samples used for the antimicrobial evaluation test were 1 g each, and the size was 10 × 10 × 1 mm. It was performed according to the measurement method (KS K 0693). The sample was placed in a flask and cultured for 24 hours.

 Antibacterial test test result Escherichia coli Staphylococcus division Initial bacterial count
(Mari) Test bacteria
(Mari) Reduction rate
(%) Initial bacterial count
(Mari) Test bacteria
(Mari) Reduction rate
(%) Comparative Example 1 1 × 10 ⁷ 1.5 × 10 ⁸ increase 1.8 × 10 ⁷ 1.9 × 10 ⁹ increase Example 1 1 × 10 ⁷ 0 100 1.8 × 10 ⁷ 0 100

As shown in Table 1, the mask of Example 1 using a manganese catalyst showed a higher antimicrobial activity than the mask of Comparative Example 1.

2. TVOC (Volatile organic compound) decomposition test

The mask of Example 1 and the mask of Comparative Example 1 were subjected to TVOC (TOTAL VOLATILE ORGANIC COMPOUNDS) removal experiments, and the measurement results are shown in Table 2. In order to confirm TVOC (Volatile Organic Compound) decomposition efficiency by the mechanism of the present invention, 10 cigarettes were lit in a 5 × 5 m chamber and left for 30 minutes. Thereafter, the mask of Example 1 and the mask of Comparative Example 1 were respectively installed at the outlet of the circulation fan in the upper portion of the chamber.

The circulation fan was operated for about 30 minutes and the TVOC (volatile organic compound) degradation rate in the chamber was measured.

TVOC (volatile organic compound) decomposition test measurement result division
(Acetaldehyde) Concentration (㎍ / ㎥) Concentration of volatile organic compounds in the chamber before installation Concentration of Volatile Organic Compounds in the Chamber After Installation Comparative Example 1 82.7 68.4 Example 1 82.7 21.5

As shown in Table 2, the mask of Example 1 using a manganese-based catalyst showed a higher TVOC (volatile organic compound) decomposition than the mask of Comparative Example 1.

These results are believed to be due to the following factors. Ozone is decomposed in the manganese (Mn) -based catalyst to produce oxygen radicals as intermediates. At this time, the generated oxygen radicals are chemically reactive molecules including oxygen atoms. In addition, the reactivity is very high and has excellent oxidation power. Thus, ozone or total volatile organic compounds in the air can be decomposed and converted into harmless oxygen (O ₂ ).

The present invention described above is not limited to the above-described embodiments, and various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be obvious to him.

In addition, the components shown in the drawings may be enlarged or reduced for convenience of description, and thus the present invention is not limited to the size or shape of the components shown in the drawings, and the general knowledge of the art. Those skilled in the art will appreciate that various modifications and equivalent other embodiments are possible from this. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

1: Manganese Nanofiber
2: panel net
10: manganese nano fiber manufacturing apparatus
20: injection nozzle
100: mask body
110: first guide part
120: second guide portion
130: first suvelcro part
140: second male Velcro portion
200: fixed part
300: filter unit
310: first fastening portion
320: second fastening portion
330: first arm Velcro portion
340: second arm Velcro portion
400: inner layer
500 filter layer
600: outer layer

Claims (9)

A mask body formed to cover the nose and mouth of the face;
A fixing part connected to the mask body and fixed to an ear of a user; And
And a filter unit formed on one surface of the mask body to filter out fine materials.
The filter unit,
Using manganese catalyst to decompose ozone,
Manganese-based nanofibers are prepared by electrospinning a solution in which a polymer and a manganese-based catalyst are dissolved in a panel network.
The solution is composed of 3 to 20% by weight of the polymer, 2.5 to 15% by weight of the manganese catalyst and 65 to 94.5% by weight of the solvent,
The diameter of the manganese-based nanofibers are formed in 5nm ~ 150μm,
When the manganese-based nanofiber coating is silver nano or titanium dioxide particles are added,
The filter unit,
A filter layer made of a manganese catalyst; And
And an inner surface layer formed between the filter layer and the face to prevent the manganese catalyst formed on the filter layer from touching the face of the user.
The filter layer,
A solution in which a manganese-based catalyst and a polyurethane solution are mixed by a first injection nozzle among a first injection nozzle and a second injection nozzle which are inclined so as to form an mutually converging angle at the same point spaced apart from the panel network (MnO ₂ 5 wt%, PU 5wt%, DMF 45wt%, MEK 45wt%) are sprayed at a high voltage of 5-20 kV, and a solution in which a manganese catalyst and nylon 6 are mixed by a second spray nozzle (MnO ₂ 10 wt%, Nylon-6 10wt%, Formicacid 80wt%) is a mask comprising a filter using a manganese-based catalyst, characterized in that the injection is produced at a high voltage of 5 ~ 20kV.
delete The method of claim 1,
The polymer,
At least one of polyester (POLYESTER), polyurethane (PU: POLYURETHANE), polyvinylidene fluoride (PVDF: POLYVINYLIDENE FLUORIDE), polyvinyl alcohol (PVA: POLYVINYL ALCOHOL) and nylon (NYLON) resin Mask comprising a filter using a manganese catalyst, characterized in that.
The method of claim 1,
The mask body,
A first guide part formed on one surface of the mask body; And
And a second guide part formed on one surface of the mask body so as to face the first guide part with respect to the center of the mask body.
The filter unit,
A first fastening part fastened to the first guide part; And
And a second fastening part fastened to the second guide part. A mask comprising a filter using a manganese catalyst.
The method of claim 1,
The mask body,
A first male Velcro part formed on one surface of the mask body; And
And a second male Velcro portion formed on one surface of the mask body so as to face the first male Velcro portion with respect to the center of the mask body.
The filter unit,
A first female Velcro portion fastened to the first male Velcro portion; And
And a second arm Velcro portion coupled to the second male Velcro portion. A mask comprising a filter using a manganese catalyst.
delete The method of claim 1,
And an outer surface layer formed between the filter layer and the mask body to prevent the manganese catalyst formed on the filter layer from contacting the mask body.
The method of claim 7, wherein
And an auxiliary filter formed between the filter layer and the inner surface layer or between the filter layer and the outer surface layer.
The auxiliary filter,
A mask comprising a filter using a manganese-based catalyst, characterized in that the diatomaceous earth ceramic layer, the Hanji layer, activated carbon layer and the yellow dust prevention layer is laminated.
The method of claim 1,
The mask body,
Mask comprising a filter using a manganese catalyst, characterized in that the material of any one of cloth, polypropylene (POLYPROPYLENE), elastomer (ELASTOMER) and silicone (SILICONE).

Images