KR20170096359A - Air refreshing mask and manufacturing method thereof - Google Patents

Air refreshing mask and manufacturing method thereof Download PDF

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Publication number
KR20170096359A
KR20170096359A KR1020160017659A KR20160017659A KR20170096359A KR 20170096359 A KR20170096359 A KR 20170096359A KR 1020160017659 A KR1020160017659 A KR 1020160017659A KR 20160017659 A KR20160017659 A KR 20160017659A KR 20170096359 A KR20170096359 A KR 20170096359A
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Prior art keywords
membrane
laminate
photocatalyst
air
solution
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KR1020160017659A
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Korean (ko)
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정구현
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정구현
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/02—Masks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/02—Masks
    • A62B18/025—Halfmasks
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00—Filters for breathing-protection purposes
    • A62B23/02—Filters for breathing-protection purposes for respirators
    • A62B23/025—Filters for breathing-protection purposes for respirators the filter having substantially the shape of a mask
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/10—Apparatus features
    • A61L2209/14—Filtering means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2555/00—Personal care

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  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Zoology (AREA)
  • Pulmonology (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Catalysts (AREA)

Abstract

The present invention, air-flammable masks, and relates to a method of manufacturing the same, and more particularly purified to attach the photocatalyst is TiO 2 is coated with a membrane laminated first on the outside of the mask decompose the harmful air of smog and so on through the sun and the membrane The present invention relates to a structure and a manufacturing method of an air purifying mask which can maintain high efficiency and reuse of photocatalyst through the material and characteristics of the photocatalyst.
The air-purifying mask according to the present invention comprises a first membrane on which a UV-treated and a photocatalyst solution is applied; A membrane holder joined to one surface of the first membrane to support the first membrane; A second membrane bonded to one surface of the membrane holder; And a mask body attached to one surface of the second membrane; .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an air-

The present invention, air-flammable masks, and relates to a method of manufacturing the same, and more particularly purified to attach the photocatalyst is TiO 2 is coated with a membrane laminated first on the outside of the mask decompose the harmful air of smog and so on through the sun and the membrane The present invention relates to a structure and a manufacturing method of an air purifying mask which can maintain high efficiency and reuse of photocatalyst through the material and characteristics of the photocatalyst.

The masks are mainly used to perform dustproofing and insecticidal functions in winter or industrial fields. These masks are made of cotton, which is cut to a predetermined size in order to improve absorbency, breathability and washability, The form was common.

However, since a mask made of a simple material only has a deteriorating effect of blocking noxious gas, recently, a technique of decomposing noxious gas by forming a photocatalyst layer on the outer surface of the mask has been developed.

Photocatalyst In particular, TiO 2 (titanium dioxide), which is most commonly used, forms holes (h +) with electrons (electrons) and electrons + electrons when they are exposed to ultraviolet rays such as sunlight or fluorescence.

The electron (e) produces oxygen, which is adsorbed on the photocatalyst, as an oxygen ion, which produces an intermediate of the oxidation reaction and peroxide, or a reaction of water through hydrogen peroxide.

In addition, the hole (h +) forms a strong oxidizing hydroxide (OH Radical), which has a stronger oxidizing power than chlorine or ozone for sterilization. According to the reaction, the photocatalyst has ultraviolet ray shielding, antifouling effect, air purifying effect, sterilizing effect, and odor removing effect.

Conventionally, there has been disclosed a technique of directly coating the photocatalyst on the outer surface of the mask or coating the photocatalyst on the outer surface of the mask by coating it on a coating layer such as a nonwoven fabric. In this case, the photocatalytic coating layer can be peeled off by washing the mask, There was a possibility that the byproducts generated through the mask penetrated the respiratory system.

Korea Patent No. 10-0566074 Korean Patent Publication No. 10-2009-0036863

Accordingly, it is an object of the present invention to attach harmful air such as smog through sunlight by attaching a membrane laminate coated with TiO 2 as a photocatalyst to a surface of a mask.

Another objective is to apply a membrane as a separate material to apply a photocatalyst to filter out dust in the air to provide a double filtering effect and pass water vapor which is very small particles to facilitate the decomposition reaction of the photocatalyst TiO 2 , The efficiency of the photocatalyst can be maintained and the byproduct can be washed through the washing with water, thereby enabling reuse in a state in which the decomposition efficiency of the photocatalyst is maintained.

The air-purifying mask according to the present invention comprises a first membrane on which a UV-treated and a photocatalyst solution is applied; A membrane holder joined to one surface of the first membrane to support the first membrane; A second membrane bonded to one surface of the membrane holder; And a mask body attached to one surface of the second membrane; .

In the present invention, the material of the first membrane may include polyester, and the material of the second membrane may include PTFE or aramid.

In the present invention, the second membrane prevents permeation of the photocatalyst solution applied to the first membrane, and the membrane holder has permeability.

In the present invention, the photocatalytic solution includes 10 to 18 wt% of TiO 2 , 55 to 65 wt% of distilled water, 20 to 30 wt% of solvent, and 1 to 2 wt% of an acidic solution, , And methanol. The material of the acidic solution includes any one of HCl and HCl.

According to another aspect of the present invention, there is provided a method of fabricating an air purifying mask, the method comprising: irradiating ultraviolet light onto a surface of a first membrane in a laminated body in which a first membrane, a membrane holder, and a second membrane are laminated; Applying a photocatalytic solution to the surface of the first membrane of the laminate; Pressing the laminate at a high temperature to bond the laminate; And attaching the laminate bonded by the hot press to one surface of the mask body; .

According to another aspect of the present invention, there is provided a method of fabricating an air-cleanable mask, the method comprising: forming a laminate in the order of a UVO-treated first membrane, a membrane holder, and a second membrane; Applying a photocatalytic solution to the surface of the first membrane of the laminate; Pressing the laminate at a high temperature to bond the laminate; And attaching the laminate bonded by the hot press to one surface of the mask body; .

In the present invention, the material of the first membrane may include polyester, and the material of the second membrane may include PTFE or aramid.

In the present invention, the second membrane prevents permeation of the photocatalyst solution applied to the first membrane, and the membrane holder has permeability. The laminate is pressed at a high temperature to form a joint The temperature is in the range of 150 to 170 degrees Celsius.

In the present invention, the photocatalytic solution includes 10 to 18 wt% of TiO 2 , 55 to 65 wt% of distilled water, 20 to 30 wt% of solvent, and 1 to 2 wt% of an acidic solution, , And methanol. The material of the acidic solution includes any one of HCl and HCl.

According to the present invention, a membrane laminate coated with TiO 2, which is a photocatalyst, is attached to the outer surface of a mask to decompose harmful air such as smog through sunlight to help protect the respiratory tract from harmful substances. The decomposition efficiency of the photocatalyst can be increased and the reusability can be increased.

1 is an exploded perspective view of an air-purifying mask according to an embodiment of the present invention.
2 is a flowchart illustrating a method of manufacturing an air-purifying mask according to an embodiment of the present invention.
3 is a flowchart illustrating a method of manufacturing an air-purifying mask according to another embodiment of the present invention.
4 is a cross-sectional view showing a flow of a method of manufacturing an air-purifying mask shown in FIG.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is an exploded perspective view of an air-purifying mask according to an embodiment of the present invention.

Referring to FIG. 1, the air purifying mask 100 has a UVO-treated first membrane 110, a membrane holder 120, a second membrane 130, and a mask body 140 stacked.

The first membrane 110 is a layer deposited on the uppermost layer of the air-purifying mask 100 and is a layer on which a photocatalytic solution, which is a material necessary for air purification, is applied to the surface.

The membrane, which is coated with the photocatalyst solution, is a very thin film that filters out dust in the air to provide a double filtering effect and pass water vapor, which is a very small particle, to facilitate the decomposition reaction of the photocatalyst TiO 2 , It can help.

As the first membrane 110, for example, polyester may be applied. Since the photocatalyst solution is not absorbed due to the non-hygroscopic polyester property, the surface of the first membrane 110 before application of the photocatalyst solution is irradiated with ultraviolet And UVO treatment is performed.

The UVO treatment is a process of causing a structural damage to the first membrane 110, whereby when the photocatalyst solution is applied, the bonding of the first membrane 110 is evenly applied between the destroyed tissues, Allowing the photocatalyst solution to be spread evenly over a larger area.

The material to be applied to the first membrane 110 can be formed into a membrane. Any material can be used as long as it can pass water vapor and can apply and penetrate the photocatalyst solution by UVO treatment. Do not.

The photocatalytic solution sprayed on the first membrane 110 for air purification comprises 10 to 20% by weight of TiO 2 , 55 to 65% by weight of distilled water, 20 to 30% by weight of solvent and 1 to 2% by weight of an acidic solution.

The TiO 2 is a photocatalyst for decomposing harmful substances. When light energy is received, electrons (e) and holes (h +) are generated on the surface, and electrons are generated in TiO 2 It reacts with oxygen on the surface to form a superoxide anion (O2-).

The hole (h +) reacts with the water present in the air to form a hydroxide (OH Radical). Since the generated hydroxide has a high ability to oxidize and decompose strong organic materials, it is always present in the air It decomposes NOx / SOx contained in fine dusts and smog as well as bacteria such as odor substances, viruses and bacteria to produce ionized by-products harmless to the human body.

The optimum ratio of the photocatalyst is 10% by weight to 20% by weight. The minimum ratio of the photocatalyst to be degraded by the photocatalyst is 10% by weight. When the concentration exceeds 20% by weight, It becomes difficult to spray.

The solvent is added to the photocatalyst solution so as to allow the photocatalyst solution to penetrate the first membrane 110 more effectively. For example, one of ethanol or methanol may be applied.

In the case of the polyester applied to the first membrane 110, the solvent may be sufficiently absorbed if the solvent ratio is 20% by weight or more, and the solvent ratio may be 30% by weight or more The solvent may be unnecessarily penetrated into the mask body attached to the lower portion of the second membrane 130, so that the ratio may not be exceeded, because the permeation is absorbed by the PTFE applied to the second membrane 130 It is good.

The acidic solution is added in order to prevent the phenomenon that the TiO 2 is aggregated and not uniformly applied. For example, one of HCl and HCl may be added. The proper ratio is preferably 1 to 2 wt%.

The optimum ratio of the acidic solution is interlocked with the ratio of the TiO 2 in a ratio necessary for preventing the TiO 2 from aggregating.

Assuming that the weight of the photocatalyst solution is 100 g, and the weight of HCl applied as an example of the acid solution is 1 g, the weight of the TiO 2 charged with each of the molecules of HCl is calculated by the following equation .

Figure pat00001

By dividing the weight 1 of HCl by the sum of the atomic weight 1 of H and the atomic weight 35.45 of Cl, it is possible to obtain the number of moles of HCl charged on TiO 2, Since the crystal is composed of nine cubic molecules, the molecular weight is calculated using the Ti atomic weight of 47.88 and the O atomic weight of 16, and the weight of the nine molecules and the weight of the charged HCl is calculated as 19.72 g. As a result, it can be seen that when the weight of HCl is 1 g, the weight of the TiO 2 having a non-aggregated molecular structure is 19.72 g.

As a result, 1 wt% of the acid solution can prevent agglomeration up to 20 wt% of TiO 2. If the weight of TiO 2 is increased, it can not form a molecular structure and can form aggregates or deposits.

When the TiO 2 content is 20% by weight, the weight ratio of the acidic solution may be more than 1% by weight, but when it is 2% by weight or more, the devices which will spray the acidic solution during the production may be corroded or damaged due to acidity It is preferable that the content does not exceed 2% by weight.

The membrane holder 120 is laminated between the first membrane 110 and the second membrane 130, which is a thin membrane material that is susceptible to damage. The membrane holder 120 may be a thin film of a fiber material. For example, a non-woven fabric or a thin cotton fabric is applied to prevent the membrane bonded to both sides from tearing or stretching to damage the shape.

In addition, since the membrane holder 120 uses a fiber material, the membrane holder 120 absorbs a part of the photocatalyst solution flowing downward while being applied to the first membrane 110. At this time, since the photocatalytic solution is added with an acidic solution, the membrane holder 120 should be treated with fibers other than the basicized fibers that react with the acidic solution to neutralize the acidic solution.

The second membrane 130 is a membrane bonded to the lower end of the membrane holder 120. For example, PTFE (Polytetrafluoroethylene) known as Teflon or aramid having excellent strength and heat resistance can be applied have.

Since the second membrane 130 has high non-stickiness and almost all materials such as water and oil do not stick to the membrane holder 120, the photocatalyst solution permeated to the membrane holder 120 is adhered to the mask body 140 To prevent infiltration.

The material to be applied to the second membrane 130 can be formed into a membrane. Any material can be used as long as it can pass water vapor and does not transmit the photocatalyst solution. The material is not limited to the material described in the present invention.

When the photocatalyst solution is sprayed onto the surface of the first membrane 110 in a state where the first membrane 110, the membrane holder 120, and the second membrane 130 are laminated in this order to form a membrane laminate, The solution is absorbed by the UVO-treated first membrane 110 and partly absorbed by the membrane holder 120, which is a fiber material, and remains on the surface without being permeated into the second membrane 130.

After the photocatalyst solution is injected onto the surface of the first membrane 110, a high-temperature press bonding is performed to bond the membrane laminate as a single membrane.

The solvent and the acidic solution of the photocatalyst solution applied to the first membrane 110 through the hot press are evaporated and removed, and the photocatalyst TiO 2 , and the harmful components are decomposed through the photocatalytic reaction.

When the membrane laminate coated with the photocatalyst solution is bonded by a hot press, the membrane laminate is attached to the mask body 140 such that the second membrane 130 contacts one surface of the mask body 140 .

The mask body 140 is formed of a fabric having a predetermined length and width so as to cover the mouth and nose of a person. For example, a material such as cotton, non-woven fabric and the like is applied.

Through the above process, the completed air-clarifying mask 100 decomposes noxious gases such as NOx and SOx through the photocatalyst applied to the membrane laminate to generate ionized HNOx- and HSOx-by-products harmless to the human body, So that it can be purified.

However, if the by-products generated through the photocatalyst are continuously accumulated in the membrane laminate, it may interfere with respiration and the decomposition effect of the photocatalyst TiO 2 may be deteriorated.

Therefore, it is important to remove the ionized byproducts in order to increase the convenience of breathing and increase the efficiency of the photocatalyst. Since the ionized byproducts are easily dissolved in water, by-products generated through the photocatalyst can be removed by washing with water .

Since the first membrane 110 in the membrane laminate is subjected to UVO treatment, hydrophobicity is decreased and water can be washed, water can be permeated, and the membrane holder 120 is also permeable to water, The by-products generated by the photocatalyst absorbed in the first membrane 110 and the membrane holder 120 can be easily dissolved in water.

However, since the second membrane 130 does not allow water to pass therethrough, when the air-purifying mask 100 is rinsed with water, the by-products generated by the photocatalyst are separated from the first membrane 110 and the membrane holder 120, Lt; RTI ID = 0.0 > decomposition < / RTI >

2 is a flowchart illustrating a method of manufacturing an air-purifying mask according to an embodiment of the present invention.

2, ultraviolet rays are irradiated to the surface of the first membrane 110 to perform UVO treatment (S100). Then, the first membrane 110, the membrane holder 120, the second membrane 130 ) To form a laminate (S110).

Next, a photocatalyst solution is applied to the surface of the first membrane 110 of the laminate (S120). At this stage, it is preferable to apply the spraying method in order to uniformly coat the photocatalyst solution in the form of fine particles.

The photocatalyst solution is composed of 10 to 20% by weight of TiO 2 , 55 to 65% by weight of distilled water, 20 to 30% by weight of solvent and 1 to 2% by weight of an acidic solution. , And it is preferable that the acid solution is applied either of HCl and HCl.

When the application of the photocatalyst solution to the laminate is completed, the laminate is pressed and bonded at a high temperature (S130).

At this time, the bonding temperature is preferably 150 to 170 degrees Celsius depending on the high temperature characteristics of the first membrane 110, which is located at the uppermost end of the laminate and is directly pressed at a high temperature. The first membrane 110 is limited in thermal resistance at a peak temperature of 150 degrees to 10 minutes.

It is preferable that the coating for bonding is performed in the vicinity of the peak temperature. It is preferable to avoid the temperature too high because the solid should melt and then return to solid without changing the physical properties. On the average, The high-temperature press bonding is performed at a temperature of 150 to 170 degrees Celsius based on the peak temperature of the first membrane 110 of 150 degrees.

Finally, the laminate bonded by a high-temperature press is adhered to one surface of the mask body 140 (S140) to complete the manufacture of the air-purifying mask 100.

The step of constructing the laminate (S100) and the step of performing UVO treatment (S110) on the surface of the first membrane (110) may be carried out by changing the order.

3 is a flowchart illustrating a method of manufacturing an air-purifying mask according to another embodiment of the present invention.

Referring to FIG. 3, the first membrane 110, the membrane holder 120, and the second membrane 130 are stacked in this order to form a laminate (S200). Then, a surface of the first membrane 110 UVO treatment is performed by irradiating ultraviolet rays (S210).

Next, a photocatalytic solution is applied on the surface of the first membrane 110 of the laminate (S220), and the laminate is press bonded at a high temperature (S230). Finally, the laminate bonded by the high- The mask 100 is attached to one side of the mask body 140 (S240), and the manufacture of the air-purifying mask 100 is completed.

4 is a cross-sectional view showing a flow of a method of manufacturing an air-purifying mask shown in FIG.

4 (a) shows a step of irradiating the first membrane 110 with ultraviolet rays to perform a UVO treatment. FIG. 4 (b) shows a step of irradiating ultraviolet rays to the first membrane 110, the membrane holder 120, And the second membrane are laminated in order to form a laminate.

4C shows a step of spraying a photocatalyst solution containing TiO 2 , which is a photocatalyst, on the first membrane 110 stacked on the uppermost layer of the laminate by spraying. At this time, the photocatalyst solution penetrates into the UVO-treated first membrane 110 and the membrane holder 120 and is absorbed and is not penetrated into the second membrane 130.

4 (d) shows a step of bonding the laminate coated with the photocatalyst solution to a single film by high-temperature press bonding, and FIG. 4 (e) shows a step of bonding a laminate formed of one film by high- To the mask body 140 is shown.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments. Those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope of the appended claims, The genius will be so self-evident. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100: air purifying mask 110: first membrane
120: Membrane holder 130: Second membrane
140: mask body

Claims (18)

A first membrane to which UVO treatment is applied and to which a photocatalytic solution is applied;
A membrane holder joined to one surface of the first membrane to support the first membrane;
A second membrane bonded to one surface of the membrane holder; And
A mask body attached to one surface of the second membrane; And an air-permeable mask. The method according to claim 1,
Wherein the material of the first membrane comprises polyester. The method according to claim 1,
Wherein the material of the second membrane includes one of PTFE and aramid. The method according to claim 1,
Wherein the second membrane prevents permeation of the photocatalyst solution applied to the first membrane. The method according to claim 1,
Wherein the membrane holder has water permeability. The method according to claim 1,
Wherein the photocatalytic solution comprises 10 to 18% by weight of TiO 2 , 55 to 65% by weight of distilled water, 20 to 30% by weight of a solvent and 1 to 2% by weight of an acidic solution. The method according to claim 6,
Wherein the material of the solvent includes any one of ethanol and methanol. The method according to claim 6,
Wherein the material of the acidic solution comprises any one of HCl and HCl. Irradiating the surface of the first membrane with ultraviolet rays to perform UVO treatment in a laminate in which a first membrane, a membrane holder, and a second membrane are stacked in this order;
Applying a photocatalytic solution to the surface of the first membrane of the laminate;
Pressing the laminate at a high temperature to bond the laminate; And
Attaching a laminate joined by the hot press to one surface of the mask body; Wherein the air-permeable mask has an air-permeable surface. Forming a laminate in the order of a UVO-treated first membrane, a membrane holder, and a second membrane by irradiating ultraviolet rays to the surface;
Applying a photocatalytic solution to the surface of the first membrane of the laminate;
Pressing the laminate at a high temperature to bond the laminate; And
Attaching a laminate joined by the hot press to one surface of the mask body; Wherein the air-permeable mask has an air-permeable surface. 11. The method according to claim 9 or 10,
Wherein the material of the first membrane comprises polyester. ≪ RTI ID = 0.0 > 11. < / RTI > 11. The method according to claim 9 or 10,
Wherein the material of the second membrane comprises one of PTFE and aramid. 11. The method according to claim 9 or 10,
Wherein the second membrane prevents permeation of the photocatalyst solution applied to the first membrane. 11. The method according to claim 9 or 10,
Wherein the membrane holder has water permeability. 11. The method according to claim 9 or 10,
Wherein the temperature at the step of pressing and bonding the laminate at a high temperature is from 150 to 170 degrees Celsius. 11. The method according to claim 9 or 10,
Wherein the photocatalytic solution comprises 10 to 18 wt% of TiO 2 , 55 to 65 wt% of distilled water, 20 to 30 wt% of solvent, and 1 to 2 wt% of an acidic solution. 17. The method of claim 16,
Wherein the material of the solvent includes any one of ethanol and methanol. 17. The method of claim 16,
Wherein the material of the acidic solution comprises any one of HCl and HCl.
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KR20210119251A (en) * 2020-03-24 2021-10-05 유한회사 에어하이진 Full face respiratory protection device
KR20220130485A (en) 2021-03-18 2022-09-27 한국기계연구원 Always-on photocatalytic facial mask and a manufacturing method thereof
KR102516047B1 (en) * 2022-08-26 2023-03-30 코리아세이프티주식회사 Dry and Wet Composite Mask

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210119251A (en) * 2020-03-24 2021-10-05 유한회사 에어하이진 Full face respiratory protection device
KR20220130485A (en) 2021-03-18 2022-09-27 한국기계연구원 Always-on photocatalytic facial mask and a manufacturing method thereof
KR102516047B1 (en) * 2022-08-26 2023-03-30 코리아세이프티주식회사 Dry and Wet Composite Mask

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