KR20220126230A - Functional mask - Google Patents

Abstract

The present invention relates to a face mask. A plurality of wrinkle parts are formed on a mask body so that an overall storage size is compact. When it is worn, the shape of the unfolded wrinkle parts is maintained in a hemispherical shape so that breathing is comfortable. And also, a sealing state between the side of a wrinkled mask and the cheek of a wearer is enhanced to improve filtration performance. It comprises an oxygen generating means and a filter having an antibacterial effect.

Description

Functional mask {FUNCTIONAL MASK}

The present invention relates to a mask, and more particularly, a plurality of pleats are formed on the mask body so that the overall storage size is compact. It is prevented and the quality of the waterproof layer on the outer surface of the mask is maintained excellently, and relates to a method for manufacturing the same.

In general, masks are used to prevent damage to other people due to fine dust in the air or fine dust from viruses entering the human body through the respiratory system or leaking cold viruses into the air.

Meanwhile, in recent years, the necessity of using a mask throughout the four seasons is increasing due to pollutants such as yellow dust or soot and the SARS virus, and various types of masks have been proposed. In particular, the pandemic caused by the high contagiousness and mortality rate of COVID-19, a mutant coronavirus that started spreading in Wuhan, China, has had a great impact on the world, and accordingly the use of masks to prevent transmission has become a necessity, not an option.

Corona virus is a factor that causes respiratory diseases in children and the elderly as well as healthy adults, and masks are recognized as the minimum essential household items to prevent respiratory viruses.

In addition, masks are being used throughout the industry. For example, it is not only worn a lot to protect the health of workers in chemical plants that emit toxic gas, metal smelting sites where metal powder and welding fumes are generated, paper-related or textile factories, etc., but also dust generation should be extremely limited. Masks are used in semiconductor laboratories (or semiconductor manufacturing sites) to create a clean workspace for product quality.

As such, it is desirable to improve filtration performance by manufacturing the mask, which is widely used in real life and industry, so that there is no gap between the mask and the wearer's cheeks, etc. while comfortably breathing while wearing it.

However, when the conventional mask is worn, the initial state is not maintained during the inhalation process and approaches the lips, and breathing is uncomfortable due to the contact with the lips in the heavy inhalation process.

Korean Patent Publication No. 2002-0025908

The present invention has been devised to solve the conventional problems as described above, and a plurality of wrinkled parts are formed on the mask body, so that the overall storage size is compact, and when worn, the shape of the unfolded wrinkle part is maintained in a hemispherical shape (Dome) to make breathing easier. An object of the present invention is to provide a mask that is not only comfortable, but also has improved filtration performance by strengthening the sealing state between the side of the pleated mask and the wearer's cheek.

Another object of the present invention is that an oxygen generating layer and an antibacterial means are provided on the surface of the mask, so that the mask has an excellent filtering effect of fine powder, can suppress the propagation of bacteria, and provide an oxygen generating layer to improve the wearing comfort It is to improve and provide a mask that can be worn for a long period of time or between vigorous exercise.

As a technical means for achieving the above technical problem, a mask body provided with a multi-layered filter paper in which a plurality of folds are folded, and a pair of earring straps provided at both ends of the mask body and woven with stretchable threads will include

According to an embodiment of the present invention, the mask body 100 may have an outermost waterproof layer, and an oxygen generating layer and an antibacterial filter layer may be provided inside the waterproof layer.

The waterproof layer provided in the mask of the present invention may be prepared by coating a biodegradable polymer on one side of a stretchable fabric, and more specifically, the stretchable fabric is a cross-linked natural rubber such as polyisoprene. , neoprene (neoprene), butyl rubber (butyl rubber), nitrile rubber (nitrile rubber) or may be one or more selected from fabrics woven using silicone rubber, more specifically may be neoprene fabric, but is not limited thereto .

In addition, specifically, the biodegradable polymer resin coated on the waterproof layer is an aliphatic polyester-based PCL (polycaprolactone), PLA (polylactic acid, polylacticacid), Diol/Diacid-based AP (Alphatic Polyester Alphatic). polyester), PGA (polyglycolic acid), PBS (polybutylene succinate), poly(phosphate ester), and poly(phosphazene) at least one from the group consisting of It may be selected, and most specifically, PLA and polyphosphazene may be mixed in a weight ratio of 2:1.

The biodegradable polymer has functions similar to general plastics (strength, water resistance, molding processability, heat resistance, etc.) during use, and finally through the process of cutting high molecular compounds by the activity of microorganisms in nature and changing them by low molecular weight compounds refers to plastics that decompose into inorganic substances that do not adversely affect the environment, such as water and carbon dioxide.

Specifically, the oxygen generating layer is characterized in that it reacts with moisture and water vapor discharged during the wearer's breathing process to generate oxygen, and is an oxygen generating agent that meets moisture and generates oxygen, a peroxide of an alkali metal, a second of an alkali metal It may be prepared by applying at least one compound selected from the group consisting of an oxide, an oxide of an alkaline earth metal, a peroxide or percarbonate of an alkaline earth metal to the opposite side of the waterproofing layer on which the biodegradable polymer is coated.

When describing the oxygen generator in more detail, sodium peroxide (Na ₂ O ₂ ), potassium peroxide (K ₂ O ₂ ), calcium peroxide (CaO ₂ ), lithium peroxide as a peroxide (lithium peroxide, Li ₂ O ₂ ), sodium superoxide (NaO ₂ ), and potassium peroxide (KO ₂ ) It may be one or more selected from the group consisting of.

In particular, substances such as potassium acetate (KO ₂ ) and sodium peroxide (Na ₂ O ₂ ) have strong properties of absorbing water and releasing oxygen, making them suitable for these uses, potassium acetate (KO ₂ ) and sodium peroxide ( Since Na ₂ O ₂ ) has a very fast reaction rate with water, calcium hydroxide or calcium oxide may be contained as a reaction rate regulator in order to control the rate of oxygen generation.

In the present invention, potassium acetate (KO ₂ ): sodium peroxide (Na ₂ O ₂ ): calcium oxide (CaO ₂ ) may be coated with an oxygen generator prepared by mixing in a molar ratio of 2:5:4.

If it is out of the above numerical range, the oxygen generation duration may be extremely short or the effect may be insignificant because a sufficient amount of oxygen is not generated because the reaction proceeds too rapidly. It can meet the purpose as an oxygen generating means provided.

On the other hand, with respect to 100 parts by weight of the oxygen generating agent, it is possible to form an oxygen generating layer by preparing in the form of a composition further comprising 10 to 20 parts by weight of glucamate.

When forming the oxygen generating layer, when glucamate is further included in the weight part, the duration of the oxygen generating effect of the oxygen generating layer is increased. If not included,

In addition, specifically, the antibacterial filter layer is a first antibacterial filter layer coated with nanoparticles of one or more selected from the group consisting of copper (Cu), tin (Sn) and silver (Ag) and an extract derived from a natural product that exhibits an antibacterial effect on the fabric It may be composed of a second antibacterial filter layer prepared by coating, but is not limited thereto.

More specifically, the first antibacterial filter layer made of copper, tin and silver may have a content of 74 to 77.2 wt% of copper, 20 to 22.3 wt% of tin, and 0.5 to 6 wt% of silver, but is limited thereto not.

In addition, the extracts derived from natural products that specifically exhibit the antibacterial effect are natural products exhibiting antibacterial and antiviral effects, such as myrrh ( Commiphora myrrha Holmes ), frankincense ( Boswellia Carterii ), gold leaf ( Lonicera japonica ), octagonal ( 八角 , Illicium verum Hook ). f. ), Bongchul (蓬朮, Curcuma zedoaria ), sagebrush ( Tetragonia tetragonioides ), Schisandra chinensis , Artemisia campestris ), pine needles and propolis may be extracted after mixing one or more natural products selected from the group consisting of However, it is not limited thereto.

More specifically, the mixed extract contains 15 parts by weight of myrrh ( Commiphora myrrha Holmes ), 10 parts by weight of stems and roots of Boswellia Carterii , 10 parts by weight of Lonicera japonica , octagonal (八角, Illicium verum Hook. ) 8 parts by weight, Curcuma zedoaria 5 parts by weight, Tetragonia tetragonioides 5 parts by weight, Schisandra chinensis 5 parts by weight, Artemisia campestris 3 parts by weight, pine needles 3 parts by weight and It may be prepared by mixing 1 part by weight of propolis and extracting it under reflux for 2 to 4 hours at 75° C. with 80 to 90% ethanol, but is not limited thereto.

In the present invention, specifically, the extract derived from the natural product may be extracted with water, a C ₁ to C ₄ lower alcohol, or a mixed solvent thereof. More specifically, it may be extracted using distilled water or 80 to 90% ethanol, but is not limited thereto.

Specifically, in the extraction process of the extract, one or more methods selected from the group consisting of cold chim, warm chim, heating, reflux and ultrasonic extraction may be used alone or in combination, and the present invention is not limited thereto, and may be appropriately changed and applied as necessary. can

In addition, after performing the extraction or fractionation process, the extract may be concentrated or the solvent may be removed by performing a filtration process under reduced pressure or further concentration and/or freeze-drying, specifically, the process of concentration under reduced pressure after extraction It is possible to obtain an extract through the process, but is not limited thereto and can be applied by appropriately changing it.

Specifically, it was confirmed that the mask of the present invention exhibits excellent fine dust filtering ability and antibacterial power, and at the same time exhibits excellent wearing comfort.

In the mask according to the present invention, the wearing comfort is excellent, breathing is comfortable, and the sealing state between the side of the wrinkle mask and the wearer's cheek is strengthened, thereby improving the filtering performance.

In addition, the mask of the present invention is composed of a total of three layers: a waterproof layer, an oxygen generating layer, and an antibacterial filter layer, and a waterproof layer is formed on the outermost part to prevent the penetration of droplets, effectively suppressing virus infection by saliva, etc. It can be worn comfortably for a long time and between intense activities by providing an oxygen generating layer.

In addition, the antibacterial filter layer of the mask of the present invention is composed of two composite layers, the first filter layer having a surface treated with metal particles showing semi-permanent antibacterial effect, and the second filter layer completely harmless to the human body by treatment with an antibacterial material derived from natural products It is characterized in that it exhibits an excellent antibacterial effect by forming a complex structure composed of

In addition, the waterproof layer used in the mask of the present invention is coated with a biodegradable polymer material, and it is characterized in that it can minimize the problem of environmental pollution caused by excessive use of the disposable mask.

The present invention provides a manufacturing method capable of improving the manufacturing efficiency of the mask when manufacturing the mask.

1 is a perspective view of a mask according to an embodiment of the present invention.
2 is a diagram of a wearing state of a mask according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In describing the embodiments, descriptions of technical contents that are well known in the technical field to which the present invention pertains and are not directly related to the present invention will be omitted. This is to more clearly convey the gist of the present invention by omitting unnecessary description.

For the same reason, some components are exaggerated, omitted, or schematically illustrated in the accompanying drawings. In addition, the size of each component does not fully reflect the actual size. In each figure, the same or corresponding elements are assigned the same reference numerals.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains. It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

Here, FIG. 1 is a perspective view of a mask according to an embodiment of the present invention, and FIG. 2 is a diagram of a wearing state of the mask according to an embodiment of the present invention.

As shown in FIG. 1 , the mask 100 according to an embodiment of the present invention may include a mask body 110 provided with filter paper, and an earring strap 140 provided at both ends of the mask body 110 . .

The mask body 110 is a form in which a plurality of folds 120 are folded, and the folds 120 are unfolded to be used in close contact with the wearer's mouth, nose and chin, and to enjoy the above-described complex effects. For this purpose, it is formed in a composite structure of a waterproof layer, an oxygen generating layer, and an antibacterial filter layer, and the seam is formed with a fusion part 130 through ultrasonic waves, and on both sides of the mask body 110, an elastic earring strap ( 140) is held in a heat-sealing manner through ultrasonic waves, and a freely bendable wire 112 is inserted in the upper center of the mask body 110 to prevent a gap of the mask from being created in the curved nose bridge.

In the mask body 110, a plurality of wrinkles 122 are formed in about five along the vertical direction to form the wrinkle part 120, and at the end of each wrinkle 122, the wrinkle 122 is formed on both sides in a folded state. It is fixed by heat sealing.

When the user puts the fusion part 130 on each end side of the wrinkle 122 and pulls the wrinkle part 120 up and down when worn, the folded wrinkle 122 unfolds and protrudes to the front, a hemisphere corresponding to a three-dimensional shape It can be curved in a shape to create an orthopedic line like an oral structure.

And provided at both ends of the mask body 110, a pair of ear straps 140 woven with stretchable threads may be woven in plain weave or twill weave to enable stretching.

That is, the weaving method of the earring string 140 is most preferably a plain weave in which the weft and the warp are floated by one space, and a twill weave that allows two spaces to be floated is also available. It may fall off and not be easy to use.

Wearing of the mask according to the present invention having the above configuration will be described with reference to FIG. 2 .

When the mask 100 in which the wrinkle part 120 is formed is worn, the wire 112 of the mask body 110 wraps around the protruding nose part in a curved shape and adheres to it, and at the same time the wrinkle part 120 is a fusion part. As the initial state of the protruding hemispherical shape is continuously maintained while unfolding around 130, the endothelium of the mask body 110 does not touch the protruding lips during the inhalation process, so breathing is comfortable, and the initial dome shape of the filtration area is still maintained Accordingly, there is an advantage that the original filtering function of the mask is continuously maintained.

Hereinafter, the present invention will be described in detail by way of Examples. However, the following examples only illustrate the present invention, and the present invention is not limited by the following examples.

Example 1. Manufacture of a mask having an oxygen generating layer and an antibacterial filter layer

The mask of the present invention has a waterproof layer positioned at the outermost part, and has an oxygen generating layer and an antibacterial filter layer sequentially from the waterproof layer, so that the antibacterial filter layer is in contact with the wearer's face.

Specifically, the waterproof layer is prepared by coating a biodegradable polymer on a stretchable fabric, as described above for the stretchable fabric and the biodegradable polymer.

In this embodiment, the neoprene fabric was coated with a mixture of PLA and polyphosphazene in a weight ratio of 2:1, and the surface was coated. There is this.

When the ratio of PLA is higher than the above ratio, after the coating layer is dried, due to the stiff properties of PLA itself, it can be easily peeled off from the neoprene fabric, there is a problem that the durability and quality of the waterproof layer are lowered, and PLA than the ratio When the ratio of is low, when manufacturing the waterproof layer, the mixture is not evenly applied to the surface of the neoprene fabric, so when wearing the mask, there is a problem that the wearability is lowered due to the problem that the mask is distorted by itself depending on the thickness of the waterproof layer.

As described above, the oxygen generating layer, which is in contact with the waterproof layer, is prepared by applying an oxygen generating agent to the opposite side coated with a biodegradable polymer in the elastic fabric forming the waterproof layer. It's like a bar.

The oxygen generating agent is characterized in that it meets moisture to generate oxygen, and since the oxygen generating layer is provided at a position immediately adjacent to the waterproof layer, water vapor that cannot be discharged to the outside of the mask is agglomerated to effectively supply moisture. can

The oxygen generator is potassium acetate (KO ₂ ): sodium peroxide (Na ₂ O ₂ ): calcium oxide (CaO ₂ ) is mixed in a molar ratio of 2:5:4, with respect to 100 parts by weight of the oxygen generator, It was prepared in the form of a composition comprising 15 parts by weight of glucamate and applied to the waterproof layer on the opposite side of the biodegradable polymer coating surface to prepare an oxygen generating layer.

The antibacterial filter layer in contact with the oxygen generating layer includes a first filter layer that exhibits a semi-permanent antibacterial effect and a second filter layer prepared by applying an extract derived from a natural product that is completely harmless to the human body, wherein the first filter layer and the second filter layer are It may be composed of separate separate layers, or one filter layer may be composed of another layer through surface treatment.

In this embodiment, a fabric woven using fibers made of copper, tin and silver was named the first filter layer, and the second filter layer was applied by applying a natural product-derived extract to the opposite side of the first filter layer in contact with the dust removal layer. was formed.

The extract derived from the natural product is the same as described above.

Experimental Example 1. Experiment to confirm the effect of fine dust filtration

The mask of Example 1 and the mask (KF94), dental mask, and cotton mask made with commercially available melt blown (MB) filters were used as Comparative Examples 1 to 3, respectively, to compare fine dust filtering ability. carried out.

The fine dust filtering ability of the present invention was measured through an experiment using sodium chloride aerosol in accordance with the guidelines for the standard standards for health masks of the Ministry of Food and Drug Safety. Specifically, dissolve the sodium chloride reagent in water to make a 1% sodium chloride solution, then generate a sodium chloride aerosol using an automatic filter inspection equipment, and set the sodium chloride aerosol flow rate to 95 L per minute and the concentration to 8 ± 4 mg/㎥. The aerosol was passed through at a flow rate of 95 L per minute and the concentration before and after passage was measured. The measured value at this time is an average value obtained between 30 ± 3 seconds, and was measured within 3 minutes after the start of the test and is shown in Table 1 below.

division Fine dust filtering ability (%) Example 1 84 Comparative Example 1 95 Comparative Example 2 75 Comparative Example 3 43

As a result, as shown in Table 1, it was confirmed that the mask of the present invention exhibited remarkably excellent fine dust filtering ability of up to 84%.

Experimental Example 2. Antibacterial effect confirmation experiment

In order to confirm the antibacterial effect of the mask of the present invention, KSK-0693:2011 was applied mutatis mutandis to compare antibacterial properties. Specifically, the masks of Examples 1 and Comparative Examples 1 to 5 sterilized at 121° C. in a high-temperature autoclave (autoclave) were subjected to measurement of Staphylococcus aureus and Escherichia coli . After inoculating 1 x 10 ⁷ pieces and culturing for 20 hours, the reduction rate of bacteriostatic bacteria compared to standard comedones was measured in % and shown in Table 2 below.

division S. aureus (%) E. coli (%) Example 1 99 99 Comparative Example 1 58 65 Comparative Example 2 56 66 Comparative Example 3 43 62

As a result, as shown in Table 2, the mask of the example of the present invention showed an antibacterial degree of 99% against both types of bacteria, and it was confirmed that it had a significantly superior antibacterial activity compared to the mask of the comparative example that was not treated with antibacterial treatment. This antibacterial activity shows an excellent effect even though a separate chemical antibacterial agent is not included, suggesting that there is no difficulty in wearing it for a long time or between exercises requiring intense movement while wearing it.

Experimental Example 3. Sensory evaluation of breathability and comfort after wearing

As a sensory test when the mask of the present invention was used, subjective evaluation of smoothness and comfort of breathing was performed.

In this experiment, it was prepared in the same manner as in Example 1, but 1) Comparative Examples 4 and 2) in which glucamate was not added, 2) Comparative Examples in which the molar ratio of potassium acetate: sodium peroxide: calcium oxide was 1:5:4 5, 3) A molar ratio of potassium acetate: sodium peroxide: calcium oxide was prepared in Comparative Example 6 of 2:1:4 and the experiment was carried out.

Specifically, 30 adults in their 20s and 60s were selected and allowed to walk on the treadmill at a speed of 6 km/h for 1 hour while wearing a mask, and then evaluated for smoothness and comfort of breathing at each corresponding time point. .

The mask of the present invention is characterized in that it has an oxygen generating layer, and as an experimental item related thereto, the degree of smoothness of breathing according to the wearing time was measured.

In addition, when the mask is used for a long time, it may cause various discomfort to the user, such as moisture and unpleasant smell, and these items were defined as comfort.

For this evaluation, a 10-point rating method was used, and the higher the preference, the higher the score. The results are shown in Table 3 below.

Item Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 comfort 9.8 7.2 8.3 9.1 9.8 9.6 8.8 Smooth breathing (10 minutes) 9.9 8.0 8.0 9.9 9.4 8.9 8.6 Breathing smoothly (30 minutes) 9.6 6.5 6.1 8.3 6.5 8.5 7.5 smooth breathing (2 hours) 8.9 4.4 4.4 6.1 4.2 6.5 6.9

As shown in Table 3, Comparative Example 1 and the dental mask of the melt blown method (Comparative Example 2) received a low preference for smoothness of breathing compared to the mask of the present invention. confirmed what was happening. In addition, in Comparative Example 3, which is a general cotton mask, the comfort and smoothness of breathing immediately after wearing were very excellent, which was close to a perfect score. When the above experimental results are taken together, the mask of the present invention has excellent wearing comfort and comfortable breathing, and the sealing state between the side of the wrinkle mask and the wearer's cheek is strengthened, so that the filtering performance can be improved.

In the case of Comparative Example 4, the comfort was excellent, while breathing was smooth for the first 10 minutes, the oxygen generation effect was rapidly reduced, and there was a problem in that the smoothness of breathing was greatly reduced.

In the case of Comparative Examples 5 and 6, the initial oxygen generation effect was also insignificant, and it was confirmed that the smoothness of breathing was greatly reduced.

Experimental Example 4. Mask deformation evaluation

In Example 1, Comparative Examples 7 and 8 prepared in the same manner were prepared in the same manner except that the weight ratio of the mixture of PLA: polyphosphazene was 2.5:1 and the mixture weight ratio of the waterproof layer was 2:1.5. proceeded.

Each mask is placed in a chamber under dry conditions maintained at 10 to 15% relative humidity, and the internal temperature is maintained at 40 ° C. After 1 hour and 8 hours have elapsed, The state of the opposite side was visually observed.

When distortion or wrinkling of the mask itself occurred and a coating layer occurred on the surface, X was evaluated, and when there was no change observed with the naked eye, it was evaluated as O.

Item Example 1 Comparative Example 7 Comparative Example 8 the first O O O 1 hour elapsed O O X 8 hours elapsed O X X

Referring to Table 4, it can be seen that, depending on the ratio of the biodegradable polymer in the mixture to be coated on the waterproof layer, the mask is easily deformed under dry and high temperature conditions. In particular, when the PLA ratio is low, the mixture is not uniformly applied to the surface of the waterproofing layer, so it can be confirmed that the mask can be easily deformed after being manufactured into a mask.

Experimental Example 5. Production rate improvement evaluation

In Example 1, before coating the mixture on the neoprene fabric, the surface was treated with a 1.06 micron fiber laser, and then PLA: polyphosphazene was coated with the mixture to prepare the mask of Example 2.

Through the surface treatment process, impurities on the surface of the waterproofing layer were removed, and the spreadability of the mixture on the surface of the neoprene fabric was increased, and it was confirmed that the mask manufacturing amount per unit time was improved to 120% compared to Example 1.

The embodiments of the present invention disclosed in the present specification and drawings are merely provided for specific examples to easily explain the technical contents of the present invention and to help the understanding of the present invention, and are not intended to limit the scope of the present invention. In addition, the embodiments according to the present invention described above are merely exemplary, and those of ordinary skill in the art will understand that various modifications and equivalent ranges of embodiments are possible therefrom. Accordingly, the true technical protection scope of the present invention should be defined by the following claims.

100: mask 110: mask body
112: wire 120: wrinkle part
122: wrinkle 130: fusion part
140: earring string

Claims (5)

a mask body in which a plurality of folds are formed; and
It is provided at both ends of the mask body, and includes a pair of earring straps woven with stretchable threads;
The mask body,
A waterproof layer is located on the outer side, an oxygen generating layer is inscribed in the waterproof layer, and an antibacterial filter layer is inscribed in the oxygen generating layer;
The wrinkle part,
Five folds are formed along the vertical direction, and the ends of the folds are each formed as a fusion part,
The earring string is woven in plain weave or twill weave and can be stretched,
The waterproof layer is prepared by coating the surface of the neoprene fabric with a mixture of PLA: polyphosphazene in a weight ratio of 2: 1,
The oxygen generating layer of the mask; potassium acetate (KO ₂ ): sodium peroxide (Na ₂ O ₂ ): calcium oxide (CaO ₂ ) by applying an oxygen generator prepared by mixing in a molar ratio of 2:5:4 Manufactured, mask.
According to claim 1,
The oxygen generating layer of the mask, based on 100 parts by weight of the oxygen generating agent, the mask is made of a composition further comprising 10 to 20 parts by weight of glucamate.
According to claim 1,
The antibacterial filter layer, copper (Cu), tin (Sn) and silver (Ag) are coated with the first antibacterial filter layer and the first antibacterial filter layer nanoparticles of one or more selected from the group consisting of silver (Ag) by applying an extract derived from a natural product exhibiting an antibacterial effect A mask consisting of a second antibacterial filter layer.
A method of manufacturing the mask according to claim 1, comprising:
Preparing a waterproof layer by coating one surface of the neoprene fabric with a mixture of PLA: polyphosphazene;
preparing an oxygen generating layer by applying an oxygen generating agent to the opposite side of the surface of the neoprene fabric coated with the mixture; and
sequentially stacking an antibacterial filter layer inwardly on the oxygen generating layer;
A method of manufacturing a mask comprising a.
5. The method of claim 4,
One surface of the neoprene fabric is PLA: A method of manufacturing a mask that performs a process of treating with a 1.06 micron fiber laser before coating the mixture in which polyphosphazene is mixed.

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