TW201618831A - Mask, filter bag for mask, and ventilation filtering method - Google Patents

Abstract

To maintain trapping efficiency, avoid interfering with wearers' breathing, and prevent the inflow of unfiltered air. A mask is provided with: a pair of support strings (3) suspended from the ears of a wearer (5); a bag-like mask body (2) held by the support strings (3) in close contact with the lips of the wearer (5); and a middle-layer sheet (22) disposed inside the mask body (2), wherein many granular porous bodies (4) are filled inside the mask body (2) between at least the lip-side of the middle-layer sheet (22) and a contact surface of an inner-layer sheet (21) of the mask body (2), said contact surface being in close contact with the lips.

Description

Mask, mask filter bag and ventilation filter method

The present invention relates to preventing the intrusion of fine foreign matter in the air such as dust, viruses, pollen, etc. by covering the nose and mouth when worn, or preventing the spread of droplets from the patient's mouth or nasal cavity, or capturing air pollution. Harmful chemical substances, radioactive substances, etc., and prevent them from being used for masks for inhalation, filter bags for masks, and ventilation filtration methods.

In a general living environment, substances in the atmosphere affect biologically, chemically, and physically, and sometimes cause illness as a disease. As a result of the above-mentioned adverse effects due to substances in the atmosphere, there are air pollution or air infections that are often observed on a daily basis. As countermeasures against air pollution or airborne infection, treatment for a source of pollution or infection, and defense against an existing person can be cited.

At this time, as for the measure of the person who has already occurred, as a kind of countermeasure that can be implemented by the individual, there is a defense by wearing a mask. Even now, not only the shape, structure, and material of the mask itself, but also the method used by the mask to absorb the air that is considered to be a harmful substance, etc. Various improvements have been made in accordance with the purpose of use.

In other words, if it is only a mask made of a non-woven fabric, it is difficult to protect against chemical substances, biological bacteria, and viruses. Therefore, as described above, it is necessary to improve the form or structure to avoid direct inhalation into the airway and lungs. Countermeasures. As one of the countermeasures, the mask is generally a three-layer structure, and a material having a high density of fibers is used as the filter member positioned in the intermediate layer to improve the collection efficiency (for example, Patent Document 1). For example, in the masks that are currently commercially available, filter members having a collection rate of 95% or more are used.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2009-106468

However, in the filter member having a high collection rate disclosed in Patent Document 1, since the ventilation resistance is high, the inhalation is difficult to pass through the filter due to the high ventilation resistance, and there is a disadvantage that it is difficult for the wearer to breathe.

In particular, in the conventional masks, the sheets are often overlapped. When the masks in the state in which the layers are overlapped as described above are used, as shown in Fig. 6(a), the filter members having a large fiber density are arranged. The state directly in front of the lips and nostrils.

When the wearer inhales in this state, the suction pressure generated by the inhalation concentrates only on a part of the peripheral portion A1 located directly in front of the lip and the nostril as shown in Fig. 6(b), and attracts The area will become narrower. If the suction area is narrow as described above, the ventilation resistance becomes high, so the flow rate of the inhalation is limited.

Further, if the suction area is narrowed and the ventilation resistance is high, the air is prevented from flowing through the periphery of the mask, so that the air does not pass through the filter, and the inside of the cover is leaked, so that the wearer can absorb the leaking air. The problem.

Here, the present invention has been made in view of the above problems, and an object of the invention is to provide a mask which can avoid the situation in which the wearer has difficulty breathing and prevent leakage while maintaining the collection rate.

In order to solve the above problems, the present invention is characterized in that it includes a support rope body that is attached to one pair of ears of a wearer, a bag-shaped mask body that is held by the support rope body and that is in close contact with the wearer's lips, and a configuration. The filter material inside the mask body is filled with a plurality of granular porous materials at least between the lip side of the filter material and the contact surface of the mask body in close contact with the lip.

Further, another invention is an invention of a ventilating filtration method, characterized in that a filter material is disposed inside a bag-shaped mask body, and the inside of the mask body is adhered to the lip at least on the lip side of the filter material and the mask body. Between the contact surfaces, filled with a plurality of granular porous substances, and will be mouth The cover body is supported in close contact with the wearer's lips.

According to the above aspect of the invention, the inside of the mask body is filled with a plurality of granular (spherical or beaded) porosity at least between the lip side of the filter material and the contact surface of the mask body which is in close contact with the lip. The substance is such that the granular porous material is disposed directly in front of the wearer's lips, and the filter material can be disposed at a position separated from the wearer's lips and nostrils by a predetermined length.

In this case, the porous material is granular (spherical or beaded), and the contact portions of the spheres are point-like, so that the ventilation path can be sufficiently ensured, even if the wearer wears a mask to inhale, by the inhalation The generated suction pressure is dispersed to the entirety of the mask body, and the suction area can be expanded. Thereby, the amount of inhalation from the lips and the nostrils can be ensured by a certain amount or more as compared with the conventional mask, so that the ventilation resistance against inhalation can be reduced. As a result, the breathing difficulty of the wearer can be avoided. Further, in the present invention, the suction area can be expanded to reduce the ventilation resistance, so that the leakage of the outside air from the peripheral edge of the mask can be prevented, so that the air sucked into the lip and the nostril is air passing through the filter material, and the filter is highly filtered. effect.

Further, by using the granular (spherical) substance in the mask body to be 5 to 6 layers during use, an inhalation and aeration path for allowing a filtering effect and a sufficient amount of air to pass through the gap in the bag are formed. It ensures a sufficient inhalation throughput. Further, the "porous" in the present invention includes a state in which the surface of the substance is roughened by the unevenness, and does not mean that it penetrates the inside of the substance but refers to a broader sense, and therefore it is not necessarily a through hole.

In addition, even because of the multiple porous materials and wear The water vapor contained in the exhalation of the wearer's mouth is also adhered to by the mouth of the wearer, and the moisture caused by the exhalation is adsorbed by the plurality of micropores formed on the surface of the spherical porous material. The surface of the sphere formed in the mask that becomes the respiratory path ensures moisture. As for exhalation, it will contain about 300ml of water on the 1st (assuming 12 breaths in 1 minute).

Moreover, since the moisture can be kept on the surface of the porous material and kept moist, when the inhalation passes through the aeration passage, dust, pollen, bacteria, mold, virus, and the like in the air are trapped in the porous substance. The surface plays a high filtration effect. Further, as described later, in order to enhance the moisturizing effect of the moisture caused by the breathing, a coating of a moisturizing agent, a water retaining agent, a chemical substance according to the purpose, or the like may be applied to the surface of the sphere, or the generation of static electricity may be used to improve the effect. Adhesion of the surface of the sphere.

In this way, for example, it is possible to prevent airborne infections such as allergens, influenza viruses, bacteria, and the like which are causes of hay fever, and the like, and it is possible to effectively remove chemical substances such as asbestos and formaldehyde, and to respond to malodors and the like. By making the porous material water-retaining, it is also possible to prevent the dryness of the oral mucosa, the nasal mucosa, the pharyngeal mucosa, the tracheal mucosa, etc., and it is far better than the conventional mask effect.

Further, since the mask body filled with the porous substance is supported by the rope body in a simple structure, the appearance or the structure can be simplified, the fashion can be improved, the manufacturing cost can be reduced, and the utility is high. A mask having the form of a three-dimensional mask currently used can be used.

In the above invention, the filter material is provided with a plurality of sheets, and the porous material is preferably filled between the plurality of filter materials. Even as above In the case of a filter material having a plurality of high collection rates, a plurality of porous materials are used to secure the ventilation path between the filter materials, so that the wearer's breathing difficulty can be avoided and leakage can be prevented.

In the above invention, it is preferred that the porous material is filled in front of and behind the filter material inside the mask body. In this case, the aeration passage is ensured by a plurality of porous substances before and after the filter material having a high collection rate, so that the suction pressure can be dispersed to prevent the breathing of the wearer and the leakage can be prevented.

In the above invention, the granular (spherical) porous material is preferably expanded polystyrene beads. In this case, the filter bag can be manufactured using a lighter and cheaper material, and the weight reduction and the cost reduction of the entire mask can be further promoted.

In the above invention, it is preferred that the porous material is impregnated or coated with a liquid. In this case, as a liquid (solution), it may contain a substance having moisturizing, water-retaining, and viscous properties, such as an additive used in foods to enhance water retention and viscosity, or a cosmetic to maintain moisture retention and moisturization. The additive used for sex is used as a coating agent. Further, it is also possible to use a liquid or a solution such as a sterilizing or antibacterial agent or a fragrance, and in this case, it is possible to increase the value of the mask and increase the added value of the mask.

In the above invention, the mask body is filled with a porous substance, but a porous material can be attached or detached to a commercially available mask. That is, another invention is a filter bag that can be stored in a mask body that can cover at least the wearer's lips when worn, and has a bag body that is housed in the mask body and has air permeability; It is disposed inside the mask body; and a plurality of granular porous materials are attached to the mask body Internally, it is filled between at least the lip side of the filter material and the contact surface of the mask body that is in close contact with the lip.

According to the above aspect of the invention, the inside of the mask body is filled with a bag body having a plurality of granular porous materials at least between the lip side of the filter material and the contact surface of the mask body in contact with the lip. The porous material is placed in the front of the body, whereby the porous material is placed directly in front of the wearer's lips, and the filter material can be placed at a position separated from the wearer's lips and nostrils by a predetermined length.

As a result, the suction pressure generated by the inhalation is dispersed to the entire body of the mask, and the suction area can be expanded. The ventilation resistance is made smaller, which avoids the breathing difficulty of the wearer and prevents leakage. Further, since the filter bag of the present invention can be housed in the mask body, it is economical to exchange only the filter bag, and the filter bag can be used in combination with the existing mask, and the scope of application of the present invention can be expanded.

According to the above invention, it is possible to prevent the wearer's breathing difficulties while maintaining the collection rate, and to prevent leakage, and to provide a mask having antiviral, antifungal, and chemical resistance effects for daily use. . Further, the present invention can also be used for the purpose of dustproofing, chemical substance suction defense, etc., and corresponds to an antivirus or dust mask.

A1‧‧‧ The peripheral part of the lips or nostrils

A2‧‧‧ side of the table

1 (1a, 1b) ‧ ‧ masks

2‧‧‧ mask body

3‧‧‧Support rope body

4‧‧‧Porous substances

5‧‧‧Wearers

6‧‧‧Aeration pathway

20a, 20b‧‧‧ internal space

21, 21a‧‧‧ inner layer

22, 22a‧‧‧ middle layer

23, 23a‧‧‧ outer sheet

24‧‧‧Folds

25‧‧ ‧ pocket

40‧‧‧Filter bag

41‧‧‧Porous substances

51‧‧‧ Lips

52‧‧‧ Nostrils

Fig. 1 is a perspective view showing the entire structure of a mask according to a first embodiment.

FIG. 2 is an explanatory view showing the entire structure of the mask according to the first embodiment, and showing the wearing state of the wearer from the side.

Fig. 3 is an exploded perspective view of the mask of the first embodiment.

Fig. 4 (a) is a plan view illustrating a state in which the mask of the first embodiment is worn by a wearer, and Fig. 4 (b) is a front view thereof.

Fig. 5 is a perspective view showing a state in which the filter bag of the second embodiment is attached to the mask body.

Fig. 6 is a view showing a conventional mask, and Fig. 6(a) is an explanatory view showing a state in which the mask is worn by the wearer from the top, and Fig. 6(b) is a front view thereof.

[First Embodiment]

(structure of mask)

Hereinafter, various embodiments representing the present invention will be described based on the drawings. Fig. 1 is a perspective view showing the entire structure of a mask 1 according to the present embodiment. Fig. 2 is an explanatory view showing the wearing of the mask according to the embodiment from the side, and Fig. 3 is an exploded perspective view of the mask 1 according to the embodiment.

In the present embodiment, as shown in FIGS. 1 and 2, the mask 1 has a mask body 2 that covers at least the lip 51 or the nostril 52 of the wearer 5 when worn, and extends from both side portions of the mask body 2 Wearing A pair of supporting ears 3 of the wearer's 5 ears. Then, by wearing the mask 1, the ventilation filtration method of the present invention can be carried out.

The support rope body 3 is a stretchable rubber cord or the like, and is sewn to the mask body 2, and is formed in a ring shape and hung on the ears of the wearer 5.

As shown in FIG. 2, the mask body 2 is a filter member that is in close contact with the lip 51 of the wearer 5 or the periphery of the nostril 52, and is composed of a laminate in which a plurality of sheet members are stacked. In the present embodiment, the mask body 2 has a three-layer structure as shown in FIG. 3. The inner layer sheet 21 is disposed on the lip 51 or the nostril 52 side of the wearer 5, and has a body attached to the mask body. The contact surface of the lips of 2; the outer layer sheet 23 is disposed on the outer air side; and the middle layer sheet 22 is disposed between the inner layer sheet 21 and the outer layer sheet 23, and is disposed inside the mask body 2.

The sheet member constituting each layer is formed of a nonwoven fabric made of polyester, polyethylene, polyurethane acrylic, cotton, long-haired nylon or the like as a material. In the present embodiment, the inner layer sheet 21 and the outer layer sheet 23 are formed of a nonwoven fabric having sufficient air permeability. In particular, the inner sheet 21 is formed of a material having a good touch. On the other hand, the intermediate sheet 22 is formed of a filter material having a higher fiber density than the outer layer sheet 23 and the inner layer sheet 21, and has a collection ratio of 99%.

Further, as the inner layer sheet 21 and the outer layer sheet 23, a non-woven fabric having a high water repellency which maintains air permeability can be used, and it can be maintained even if moisture is applied to the side of the lip 51 (inside), and it is not intended to be in contact with the outside air. The air suction side (outer side) is a highly condensed water-based non-woven fabric for the purpose of retaining water and moisturizing power. Moreover, in the outer layer 23, a complex is formed A plurality of strips 24 extending along the width direction thereof.

The edge portions of the sheets 21 to 23 are formed by heat welding (heat sealing), another pressure bonding method, or an adhesive material such as an adhesive sheet to form the mask body 2, and two internal spaces are formed therein. 20a, 20b. The mask body 2 having the above-described internal space has a degree of flexibility suitable for the shape of the mouth and nose of the wearer 5 when the porous material 4 filled therein is accumulated to a certain shape.

Then, a plurality of granular porous materials 4 are filled in each internal space. That is, the porous material 4 is filled between the lip side of the intermediate sheet 22 and the contact surface of the inner layer sheet 21, and the porous material 4 is also filled between the intermediate sheet 22 and the outer layer sheet 23. As described above, in the present embodiment, a large number of porous materials 4 are filled in front and rear of the intermediate sheet 22.

Here, the porous material 4 is inside the mask body 2 and is configured to be filled in front and rear of the intermediate sheet 22, but the present invention is not limited thereto, and is at least in the internal space 20a (the lip side of the intermediate sheet 22 is The porous body 4 is filled with the mask body 2 in close contact with the inner sheet 21 of the lip. The porous substance 4 disposed inside the mask body 2 functions as a wet filter for a mask. Specifically, the porous material 4 is filled in the inner space of the mask body 2, and is filled with 5 to 6 layers of granular expanded polystyrene beads having a mixed diameter of 1 to 6 mm so that the thickness of the mask body 2 becomes Made from 10~50mm.

As described above, a plurality of porous substances 4 are filled in the internal space of the mask body 2, so that the gap between the porous materials 4 is A ventilation passage 6 as shown in Fig. 4 is formed in the mask body 2. Here, since the porous material 4 is spherical, the contact between the spheres is a dot shape, and as a whole path, the respective paths formed between the spheres are repeatedly joined and branched to form a substantially three-dimensional network. Thereby, a sufficient ventilation path 6 is formed for the mask body 2. In the present embodiment, the porous material 4 is provided in the internal space 20a formed by the inner layer sheet 21 and the intermediate layer sheet 22, and the inner space 20b formed by the intermediate layer sheet 22 and the outer layer sheet 23, respectively, and in the respective internal spaces. Ensure adequate ventilation through the path 6.

Further, in the present embodiment, the surface of the spherical body of the porous material 4 may be, for example, a tackifier such as xanthan gum, carbomer, carrageenan or pectin, in addition to water retention and moisture retention. In addition, a material having a function of promoting emulsification, separation prevention, and shape retention is coated. Further, as a material of the coating layer, a makeup cosmetic containing a food additive, a lipstick, or a foundation is included, and a material having water retention property and moisture retention property includes a cosmetic solution or a cosmetic material.

In this case, the water molecules adhering to the porous substance 4 are held on the surface portion of the porous substance 4, and have a high water retention effect. In this way, fine particles such as dust, pollen, viruses, bacteria, harmful chemical substances such as formaldehyde or asbestos, radioactive substances, and odorous substances can be adsorbed on the surface of the sphere to prevent the inhalation of the oral cavity and trachea. Invasion can prevent hay fever, viral infections, and bacterial infections of the trachea. Moreover, the deodorizing effect by the adsorption of the odorous substance can be expected.

Further, a sterilizing, antibacterial agent, a preparation, an antiviral preparation or a preparation having a deodorizing effect, a decomposition preparation of a chemical substance, a liquid such as a fragrance. Here, as such a preparation, a commercially available preparation for washing, cleaning, wiping, oral cleaning, or a stone base, which exhibits an antibacterial effect or an antiviral effect, can be used as a chemical substance. The preparation, for example, a preparation which decomposes formaldehyde or the like, can be coated. As a result, the scope of application is wider.

As described above, the porous material 4 may be used in accordance with the purpose of melting the tackifier, the moisturizing agent, the chemical substance, the antibacterial agent, or the like on the surface of the spherical body for various purposes. It is also possible to increase the adhesion to the sphere by attracting water molecules to the surface of the sphere by static electricity generated by the porous substance 4.

(ventilation filtration method)

Then, the ventilation filtration method of the present invention can be realized by wearing the above-described mask 1. That is, in the ventilating filtration method, the intermediate sheet 22 is disposed inside the pocket-shaped mask body 2, and inside the mask body 2, at least on the side of the lip 51 of the intermediate sheet 22 and the contact surface of the mask body 2 in close contact with the lip A plurality of granular porous materials 4 are filled between (the inner faces of the inner layer sheets 21).

Then, a pair of supporting rope bodies 3, 3 are hung on the wearer's ear, and the mask body 2 is supported so as to be in close contact with the lip of the wearer 5, and the mask body 2 filled with the porous substance 4 is adhered to the wearer's lips. 51 and nostrils 52. Thereby, since at least the porous material 4 in the form of particles is filled between the inner layer sheet 21 and the intermediate layer sheet 22, the lip 51 and the high-capacity intermediate sheet 22 can be separated from each other by a predetermined length, and Its A ventilation passage 6 formed by a gap between the porous materials 4 is formed therebetween.

(Effect)

According to the above-described embodiment, the internal spaces 20a and 20b of the mask body 2 formed of the laminated body formed of the three layers are filled with the granular porous material 4, so that the collection rate can be maintained while maintaining the collection rate. Smoothes breathing and prevents leakage.

That is, when the mask body 2 filled with the porous substance 4 is attached to cover the lips 51 and the nostrils 52 of the wearer, a porous substance in the form of particles is formed between the inner layer sheet 21 and the middle layer sheet 22. 4. Therefore, as shown in FIG. 4, the intermediate sheet 22 having a high fiber density is disposed at a position separated from the wearer's lips 51 and nostrils 52 by a predetermined length, and inside the mask body 2, by the porous substance 4 The gap between them sufficiently ensures the ventilation path 6.

Then, when the wearer wears the mask 1 of the present embodiment to inhale, the suction pressure generated by the inhalation is dispersed from the peripheral portion A1 located directly in front of the lips and the nostrils as shown in FIG. Since the entire side of the front side of the mask body is A2, the suction area can be expanded. Thereby, the ventilation resistance per unit area of the inhalation of the wearer can be reduced, and the breathing difficulty of the wearer can be avoided.

In detail, the air volume flow rate (Q) at which the wearer inhales is expressed by the product of the sectional area (A) through which the air passes and the speed (flow rate (V)) of the air caused by the suction. Here, by sucking The volume flow rate (Q) generated by the gas is fixed, and the velocity (V) of the air passing through the mask 1 can be expressed by dividing the volume flow rate (Q) by the sectional area (A).

Here, the conventional mask 1a shown in FIGS. 6(a) and 6(b) is placed in a state in which the inner sheet 21a, the intermediate sheet 22a having a large fiber density, and the outer layer sheet 23a are overlapped. Since the lip 51 and the nostril 52 are directly in front of each other, the suction pressure generated by the inhalation as shown in Fig. 6(b) acts only on the peripheral portion A1 of the lip and the front of the nostril, so the sectional area thereof is A1) is narrower and the flow rate (V) is larger. However, since the intermediate sheet 22a is formed of a material having a high fiber density, if the suction area is narrowed, the ventilation resistance is changed to be high, so that the flow rate of the inhalation is restricted, making it difficult for the wearer to breathe.

Further, when the suction area is narrowed and the ventilation resistance is high, the air is prevented from flowing into the inside of the cover without passing through the filter from the periphery of the mask, and the so-called leakage flow occurs, causing the wearer to suck in the leaked air.

On the other hand, in the present embodiment, as shown in FIG. 4(a), in the mask body 2, a sufficient ventilation path 6 is secured by the gap between the porous materials 4, so that the air is inhaled. The suction pressure generated is dispersed to the entire front side A2 of the mask body 2 as shown in Fig. 4(b), so that the cross-sectional area through which the air passes is widened, and the passage of the inhalation can be ensured from around the lip 51 and the nostril 52. The amount is more than a certain amount. Thereby, the ventilation resistance to the attraction is lowered, and the breathing difficulty of the wearer can be avoided.

Moreover, when the suction area is widened and the ventilation resistance is lowered, the so-called air can be prevented from flowing into the inside of the cover from the periphery of the mask without passing through the filter. The occurrence of the leakage flow is because the air sucked into the lips 51 and the nostrils 52 passes through the air of the intermediate sheet 22, so that a high filter effect for maintaining the collection rate can be exhibited.

Further, in the present embodiment, the porous material 4 is inside the mask body 2 and is configured to be filled in front and rear of the intermediate sheet 22, but the present invention is not limited thereto, as long as it is at least in the internal space 20a (the lip of the intermediate sheet 22) The porous material 4 may be filled between the side and the mask body 2 in close contact with the inner sheet 21 of the lip, and the porous substance 4 may be omitted in the internal space 20b. Even in this case, since the expandable suction area reduces the ventilation resistance, it is possible to avoid the breathing difficulty of the wearer and prevent leakage while maintaining the collection rate. Further, since the outer layer sheet 23 and the inner space 20b can be omitted, the manufacturing cost can be reduced.

Further, in the present embodiment, since the mask body 2 filled with the porous substance is supported by the support body 3, the appearance or the structure can be simplified, the fashion can be improved, and the manufacturing cost can be reduced. High practicality. Further, in the present embodiment, since the expanded polystyrene beads are used as the granular porous material, the mask 1 can be manufactured using a lighter and cheaper material, and the weight reduction of the entire mask 1 can be further promoted. With low prices.

Further, since a plurality of micropores formed on the surface of the porous material 4 can adsorb moisture, the humidity in the ventilation passage 6 formed in the mask can be kept constant or more, so that the inhalation passes through the ventilation passage. On the 6th, the dust or virus in the air is captured on the surface of the porous material to exert a high filtration effect.

That is, when the inhalation passes through the inside of the mask body 2, it touches the spherical surface of the wet expanded polystyrene beads, so that the air contact at this time adsorbs the pollen of the particles contained in the air or Viruses, bacteria, chemicals. By this, for example, it is possible to effectively remove an allergen substance such as hay fever or the like, an air-infected virus such as an influenza virus, a chemical substance such as bacteria or formaldehyde, or asbestos or a radioactive substance. Moreover, the dryness of the oral mucosa, the nasal mucosa, the pharyngeal mucosa, the tracheal mucosa, and the like can be prevented by the water retaining power of the porous substance.

Further, in the present embodiment, the porous material 4 is impregnated with or impregnated with the coating, the antibacterial agent, or the liquid such as the fragrance. Therefore, the mask 1 can be multi-functionalized, and the added value of the mask 1 can be improved.

[Second Embodiment]

Next, a second embodiment of the present invention will be described. In the first embodiment described above, the porous material 4 is disposed inside the mask body 2, but in the present embodiment, the filter bag filled with the porous material 4 can be stored in a commercially available mask. The main purpose. Fig. 5 is a perspective view showing a state in which the filter bag of the second embodiment is attached to the mask body.

In the filter bag 40 of the second embodiment, as shown in FIG. 5, a porous material 4 is filled in a commercially available mask 1b composed of a mask body 2 and a pair of support rope bodies 3. Filter package 40.

The filter bag 40 is attached to the lips 51 or nostrils of the wearer 5. The filter bag 40 for the masks that are in close contact with each other 52 has a degree of flexibility suitable for the shape of the mouth and nose of the wearer 5 when the porous material 4 filled in the inside is accumulated to a certain shape. Further, the filter bag 40 can sufficiently obtain air permeability which does not hinder breathing (inhalation), and has an effect of exhibiting antiviral, antifouling, and chemical resistance in daily life.

Further, in the present embodiment, the filter bag 40 can be attached to a commercially available gauze mask, a non-woven mask, a plastic dust mask, and the like. That is, it can be cut with non-woven fabric or polyester, polyethylene, polyurethane acrylic, cotton, long-haired nylon, etc. in the shape of a non-woven three-dimensional mask or a plastic dust mask used in the past. The size or three-dimensional shape of the product is formed by using a non-woven fabric or a mesh body.

Then, a plurality of granular porous materials 41 are filled in the inside of the filter bag 40, and the function as a wet filter for a mask is exhibited. Specifically, the filter bag 40 is formed into a bag body of a nonwoven fabric or a net body in the form of a mask body 2, and is filled with expanded polystyrene having a mixed diameter of 1 to 6 mm as the porous substance 41. The beads are about 5~6 layers.

Further, as the bag body of the non-woven fabric, a non-woven fabric having a high water permeable property can be used, and it can be maintained to the extent that moisture is applied to the lip 51 side (inside), and the air suction side is in contact with the outside air. (Outer side), a highly condensable water-based non-woven fabric for the purpose of retaining water and moisturizing power is used. Further, in the case of a mesh body, it is a mesh having a size that allows the granular porous material 4 to be accommodated.

The mask 1b is the same as the structure in which the porous material 4 is removed from the mask 1 of the first embodiment. That is to say, the gauze mask, the non-woven mask, the plastic dust mask, etc. currently used can directly use the existing products. In the present embodiment, the intermediate sheet 22 having a collection ratio of 95% or more is disposed inside the mask body 2.

Further, in the present embodiment, in the mask 1b, the filter bag 40 can be housed in the mask body 2. Specifically, a pocket 25 is formed on the inner side surface of the commercially available mask body 2, and the filter bag 40 is accommodated in the pocket 25. Further, as the structure of the mask 1 for accommodating the filter bag 40, a double-sided tape or a Velcro (registered trademark) may be provided on the inner side of the mask body 2 (the lip side of the inner layer sheet 21). The fixing portion is attached with a bag body filled with the porous substance 4 to the fixing portion.

As described above, by accommodating the filter bag 40 in the mask body 2, the porous material 4 in the filter bag 40 is filled on the contact surface of the lip of the at least intermediate sheet 22 and the mask body 2 in close contact with the lip (in This is between the face of the bag body of the filter bag 40 or the face of the formed pocket.

Here, the filter bag 40 is housed only on the inner side surface of the commercially available mask body 2, but a fixing portion or a pocket for accommodating the filter bag 40 may be formed on the outer surface of the mask body 2, for example, so as to be formed before and after the middle layer sheet 22. Configure the filter package.

The filter bag 40 is formed on the contact surface of the filter bag 40 in close contact with the lip 51, and is formed with a line-shaped person-hardened portion corresponding to the position of the position of the wearer 5 and two lips corresponding to the wearer 5. Side method It is preferable to make the nasolabial sclerosing portion of one of the lines (nasal and labial groove). Specifically, in the hardened portion of the human body, the non-woven fabric of the substantially central portion is sewn, and the hardened portion is formed into a mountain fold by heat fusion or the like, and the pair of nasolabial groove hardened portions are from both ends of the hardened portion of the human body. The non-woven fabric of the contact surface is stitched along the decree to form a mountain fold. Thereby, the filter bag 40 is such that the human-hardened portion and the pair of nasolabial-edged portions protrude from the contact surface and form a shape surrounding the lip, and the shape is maintained.

With the above configuration, the inside of the filter bag 40 is formed with a certain space at the position of the corresponding person and the nasolabial groove (the ruled pattern) on both sides of the lip 51, and the porous substance 4 is concentrated there. In detail, anatomically, the tip end portion of the nose, the lip 51, and the lower jaw portion are almost side by side in a straight line, and the middle part of the person is formed by a straight line forming a depression on both sides of the lip, which is called The groove of the nasolabial fold (legal pattern). In the present embodiment, the person-hardened portion can be expanded in a position corresponding to a person, and the human-hardened portion and the nasolabial-hardened portion can be surrounded from the upper side (upper lip portion) and the lateral side (mouth corner portion). Lips, so when wearing, the porous material 4 is held at an appropriate thickness in the position of the nostrils and the lips, and the dust or virus in the air is surely captured in the porosity when the inhalation passes through the inhalation path. The surface of the material plays a high filtration effect. Further, in the present embodiment, the porous material 4 may be impregnated with a liquid such as the above-mentioned chemical solution.

(Effect)

In the filter bag 40 as described above, the filter bag 40 filled with the porous substance 4 is attached to the contact surface side of the inner layer sheet 21 of the mask body 2, and Further, in a state in which the filter bag 40 is attached to the mask body 2, the mask 1 is worn so that the mask 1 covers the lips 51 and the nostrils 52 of the wearer.

In this manner, the filter bag 40 filled with the porous substance 4 is disposed between the intermediate sheet 22 formed in the mask body 2 and the lip 51 and the nostril 52 of the wearer, so that the intermediate sheet 22 is disposed in position. It is separated from the wearer's lips 51 and the like by a predetermined length. Then, between the intermediate sheet 22 and the lip 51 of the wearer, the ventilation passage 6 is sufficiently ensured by the gap between the porous members 4.

Thereby, even if the wearer wears the mask 1 to inhale, the suction pressure generated by the inhalation is dispersed to the entire body of the mask body 2, so that the suction area can be expanded to reduce the ventilation resistance against inhalation. As a result, it is possible to avoid the breathing difficulty of the wearer and prevent leakage while maintaining the collection rate.

Further, since the filter bag 40 of the present embodiment can be housed in the mask 1, it is economical to exchange only the filter bag 40, and the filter bag 40 can be combined with the existing mask, and the present invention can be expanded. Application range.

[Modification]

Further, the description of each of the above embodiments is an example of the present invention. Therefore, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the technical idea of the present invention. In the present modification, the same components as those in the above-described embodiment are denoted by the same reference numerals, and the same functions are denoted by the same reference numerals, and the description thereof will be omitted.

For example, in each of the above-described embodiments, the mask body 2 has a three-layer structure and is configured to have one intermediate sheet 22 formed therein. The present invention is not limited thereto, and for example, may be inside the mask body 2. A plurality of intermediate sheets 22 are disposed. Even in this case, the porous substance 4 is filled between the intermediate sheets 22 of the plurality of sheets.

Here, as in the case of the first embodiment, when the porous body 4 is filled in the mask body 2, the porous material 4 is filled between the intermediate sheets 22 of the plurality of sheets. On the other hand, as in the case of the second embodiment, when the filter bag 40 is used, the filter bag 40 may be fixed or housed between the intermediate sheets 22 of the plurality of sheets.

In the second embodiment, the filter bag 40 is housed in the commercially available mask 1b. However, the support bag 3, 3 may be attached to the filter bag 40, and the filter may be directly worn. Package 40.

In this case, a filter member having the same material as that of the intermediate sheet 22 is provided inside the filter bag 40. Then, the inside of the filter bag 40 is filled with a plurality of granular porous materials at least between the lip side of the filter material and the contact surface of the filter bag 40 which is in close contact with the front lip.

1 (1a, 1b) ‧ ‧ masks

2‧‧‧ mask body

3‧‧‧Support rope body

4‧‧‧Porous substances

24‧‧‧Folds

Claims (12)

A mask comprising: a support rope body attached to one pair of ears of a wearer; a bag-shaped mask body held by the support rope body and in close contact with a lip of the wearer, and disposed in the foregoing The filter material inside the mask body is filled with a plurality of granular porous substances at least between the lip side of the filter material and the contact surface of the mask body that is in close contact with the lip of the mask body. . The mask according to claim 1, wherein the filter material is provided with a plurality of sheets, and the porous material is also filled between the plurality of filter materials. The mask according to claim 1 or 2, wherein the porous substance is filled in the mask body and filled in front and rear of the filter material. The mask according to any one of claims 1 to 3, wherein the porous material is impregnated or coated with a liquid. A filter bag for a mask can be stored in a mask body that covers at least a wearer's lips when worn, and is characterized in that the bag body is housed in the mask body and has air permeability; Arranging in the inside of the mask body; a plurality of granular porous substances are inside the mask body, and are filled at least between the lip side of the filter material and the contact surface of the mask body in close contact with the lip . The filter bag for a mask according to claim 5, wherein the filter material is provided with a plurality of sheets, and the porous material is also filled between the filter materials of the plurality of sheets. The filter bag for a mask according to claim 5, wherein the porous material is filled in the mask body and filled in front of and behind the filter material. The filter bag for a mask according to any one of claims 5 to 7, wherein the porous material is impregnated with a liquid. A method for ventilating filtration, characterized in that a filter material is disposed inside a bag-shaped mask body, and at least the lip surface side of the filter material and the mask body are in close contact with the contact surface of the lip in the mask body The porous body is filled with a plurality of granular materials, and the mask body is supported to be in close contact with the lips of the wearer. The aeration filtration method according to claim 9, wherein the filter material is provided with a plurality of sheets, and the porous material is also filled between the plurality of filter materials. The aeration filtration method according to claim 9 or 10, wherein the porous substance is filled in the mask body and filled in front and rear of the filter material. The aeration filtration method according to any one of claims 9 to 11, wherein the porous material is impregnated with a liquid.