JP5942237B1 - Mask, mask filter bag, and ventilation filtering method - Google Patents

Abstract

An object of the present invention is to prevent a wearer from suffering from breathing and to prevent leakage while maintaining a collection rate. SOLUTION: A pair of support strings (3) hung on both ears of a wearer (5), and a bag-shaped mask held on the support string (3) and closely attached to the lips of the wearer (5) A main body (2); and a middle layer sheet (22) disposed inside the mask main body (2), wherein at least the lip side of the middle layer sheet (22) in the mask main body (2), and the mask main body (2) Between the contact surface of the inner layer sheet (21) that is in close contact with the lips, a large number of granular porous substances (4) are filled.

Description

  The present invention covers the nose and mouth at the time of wearing to prevent the entry of fine foreign matter in the air such as dust, viruses, pollen, etc., prevents the spread of splashes from the oral cavity and nasal cavity of patients, etc. The present invention relates to a mask, a filter bag for a mask, and a ventilation filtering method for capturing harmful chemical substances, radioactive substances, and the like caused by air and preventing inhalation thereof.

  In the general living environment, atmospheric substances have many biological, chemical and physical effects on the human body, and when they affect the human body, they may develop as diseases. . The causes of such adverse effects of atmospheric substances include air pollution and air infection that are frequently observed on a daily basis. Measures against this air pollution and air infection include measures against the sources of contamination and infection and prevention against those that have occurred.

  Among these measures, one of the measures that can be implemented by individuals is prevention by wearing a mask. Even in the present situation, in addition to the form, structure, and material of the mask itself, various devices have been devised depending on the purpose of use, such as a method of adsorbing what is supposed to be a harmful substance in the air, provided in the mask. .

  In other words, it is difficult to protect chemical substances, biological bacteria, and viruses with a mask that is simply sewed on a non-woven fabric. As described above, the form and structure are devised and are not directly sucked into the respiratory tract or lungs. Such measures are necessary. As one of the countermeasures, it is common to form a three-layer structure of the mask, and a material having a high fiber density is used for the filter member located in the intermediate layer to improve the collection efficiency (for example, Patent Document 1). For example, a filter member having a collection rate of 95% or more is used for a mask currently on the market.

JP 2009-106468 A

  However, since the filter member having a high collection rate as disclosed in Patent Document 1 has high ventilation resistance, it is difficult for the intake air to pass through the high-resistance filter filter, and it is difficult for the wearer to breathe. There is.

  In particular, the conventional mask is in a state where the sheets are always overlapped. When the mask in which the layers are overlapped as described above is used, a filter having a high fiber density is obtained as shown in FIG. The member is placed in front of the lips and nostrils.

  When the wearer inhales in such a state, the suction pressure generated by the inhalation acts on only a part of the peripheral portion A1 located just before the lips and nostrils as shown in FIG. The suction area is reduced. Thus, if the suction area is small, the ventilation resistance increases, and thus the flow rate of intake air is limited.

  In addition, if the suction area is reduced and the ventilation resistance is increased, so-called leakage occurs in which the air flows into the mask without passing through the filter from around the mask with low ventilation resistance, and the wearer removes the leaked air. The problem of inhaling occurs.

  Therefore, the present invention has been made in view of the above points, and it is intended to provide a mask that can prevent the wearer's breathing from becoming difficult and prevent leakage while maintaining the collection rate. It is aimed.

In order to solve the above-described problems, the present invention provides a pair of support straps that are hung on the wearer's ears, and a contact surface that is disposed on the lip or nostril side of the wearer and is in close contact with the wearer's lip. An inner layer sheet, an outer layer sheet disposed on the outside air side, a bag-shaped mask body that is held by a support string and is in close contact with the wearer's lip, and an inner layer sheet that is disposed inside the mask body. And a filter material having a fiber density higher than that of the outer layer sheet and a collection rate of 95% or more, and in the inside of the mask main body, at least the lip side of the filter material and the contact closely contacting the lip of the mask main body A large number of granular porous materials mixed with a diameter of 1 to 6 mm are filled between the surfaces, and a large number of granular porous materials mixed with a diameter of 1 to 6 mm are filled, and the inner layer sheet, the filter material, In shape A three-dimensional stitch-shaped ventilation path is formed in the inner space, and a three-dimensional stitch-shaped ventilation path is formed in the inner space formed by the filter material and the outer layer sheet. .

Another invention is an invention of a ventilation filtering method,
Inside the bag-shaped mask body composed of an inner layer sheet having a contact surface arranged on the lip or nostril side of the wearer and in close contact with the lip of the wearer, and an outer layer sheet arranged on the outside air side , A filter material having a fiber density higher than that of the inner layer sheet and the outer layer sheet and a collection rate of 95% or more is disposed, and at least the lip side of the filter material and the contact surface in close contact with the lip of the mask body inside the mask body internal lining sheet and, bag-shaped mask body composed of an outer layer sheet disposed outside air having a contact surface disposed lip or nostril side of the wearer is in close contact with the lips of the wearer during the filter material was disposed, inside the mask body, was mixed with the lip side of at least the filter material, the diameter 1~6mm between the contact surface on which the is in close contact with the lips of the mask body A plurality of granular porous materials are filled, and a three-dimensional stitch-shaped air passage is formed in an internal space formed by the inner layer sheet and the filter material, and is formed by the filter material and the outer layer sheet. A three-dimensional stitch-shaped ventilation path is formed in the internal space, and the mask body is supported so as to be in close contact with the lip of the wearer.

According to the present invention as described above, a large number of granular (spherical or small spherical) porous materials are provided between the lip side of the filter material and the contact surface in close contact with the lip of the mask body inside the mask body. Therefore, the particulate porous material can be disposed immediately before the wearer's lip, and the filter material can be disposed at a predetermined distance from the wearer's lip and nostril.

  At this time, the porous material is granular (spherical or small spherical), and the contact portion between the spheres is dotted, so the ventilation path is sufficiently secured, so even if the wearer wears a mask and inhales, The suction pressure generated by the suction is distributed throughout the mask body, and the suction area can be increased. Thereby, since the passage amount of the intake air from around the lips and the nostrils can be secured to a certain amount or more as compared with the conventional mask, the ventilation resistance to the intake air can be lowered. As a result, the wearer's breathing can be avoided. Further, in the present invention, since the suction area can be widened and the ventilation resistance can be lowered, it is possible to prevent leakage of outside air flowing into the mask from the peripheral edge of the mask. It becomes air that has passed through and a high filter effect is exhibited.

In addition, by using 5 to 6 layers of granular (spherical) material in the mask body during use, a filter effect and an intake / exhalation path through which a sufficient amount of air passes through the gap in the bag are formed. Thus, a sufficient amount of intake air can be secured. In the present invention, the term “porous” includes a material whose surface is formed into a rough surface by unevenness, and does not necessarily need to be a hole that extends to the inside of the material or is superficial.

  In addition, since a plurality of porous materials are in close contact with the wearer's mouth, moisture from the breath is adsorbed by a large number of micropores formed on the surface of the spherical porous material, even with water vapor contained in the wearer's own breath. Therefore, it is possible to secure moisture on the surface of the sphere that is a breathing path formed in the mask. By the way, exhaled breath contains about 300 ml of water per day (as 12 breaths per minute).

  In addition, since moisture can be retained and moistened on the surface of the porous material, dust, pollen, bacteria, molds, viruses, etc. in the air are trapped on the porous material surface when the intake air passes through the ventilation path. High filter effect is demonstrated. As will be described later, in order to increase the moisture retention effect by breathing, the sphere surface may be coated with a moisturizing agent, a water retention agent, a chemical substance according to the purpose, or applied to the sphere surface due to generation of static electricity. It is also possible to increase the wearing power.

  This prevents, for example, allergens that cause hay fever, air infections such as influenza viruses and bacteria, can effectively remove chemicals such as asbestos and formaldehyde, and responds to bad odors. Is also possible. By imparting water retention to the porous material, it is possible to prevent dryness of the oral mucosa, nasal mucosa, pharyngeal mucosa, airway mucosa and the like, which far exceeds the conventional general mask effect.

In addition, since the mask body filled with a porous material is supported by a support string body, the appearance and structure can be simplified, fashionability can be improved, and the manufacturing cost can be reduced. It can be kept low and is highly practical. It can be used with a mask having the form of a three-dimensional mask currently used.
In the above invention, since the porous material is filled on the front and back of the filter material inside the mask body, a ventilation path is secured by a plurality of porous materials on the front and back of the filter material having a high collection rate. Thus, the suction pressure can be dispersed, and it is possible to avoid the wearer's breathing from becoming difficult and to prevent leakage.

  In the above invention, it is preferable that a plurality of filter materials are arranged, and the porous material is filled between the plurality of filter materials. Thus, even when there are a plurality of filter materials with a high collection rate, a ventilation path is secured by a plurality of porous substances between the filter materials, so that it is possible to prevent the wearer from suffering from breathing. Leakage can be prevented.

  In the said invention, it is preferable that a granular (spherical) porous substance is a polystyrene foam bead. In this case, the filter bag can be manufactured with a lighter and less expensive material, and the weight and cost of the entire mask can be further promoted.

  In the above invention, the porous material is preferably impregnated or coated with a liquid. In this case, the liquid (solution) is a substance having moisture retention, water retention, and viscosity, and is used to maintain moisture retention and wettability of, for example, additives used for water retention and viscosity improvement of foods and cosmetics. Additives that are present can be used as a coating agent. In addition, liquids and solutions such as antibacterial and antibacterial agents, fragrances and the like can be added and used. In these cases, the mask can be multi-functional and the added value of the mask can be increased.

In the above invention, the mask body is filled with the porous material. However, the porous material can be attached to and detached from a commercially available mask. That is, the other invention is a mask that covers at least the wearer's lips when worn, and a filter material disposed inside the mask body, and is housed in the mask body, and on the front and back of the filter material An internal space of the filter bag, which is composed of a filter bag that is arranged and formed of a breathable mesh body, and a large number of granular porous materials having a diameter of 1 to 6 mm that are filled in the filter bag. A three-dimensional knitted air passage is formed therein .

According to the present invention, a bag body filled with a large number of granular porous materials is provided between the lip side of the filter material and the contact surface in close contact with the lip of the mask body inside the mask body. By storing in the mask main body, the porous material can be disposed immediately before the lips of the wearer, and the filter material can be disposed at a predetermined distance from the lips and nostrils of the wearer.

  As a result, the suction pressure generated by the inhalation is dispersed throughout the mask body, so the suction area can be increased and the ventilation resistance can be reduced. Can be prevented. Furthermore, since the filter bag of the present invention can be stored in the mask body, it is economical because only the filter bag can be replaced, and the filter bag can be used in combination with an existing mask. The application range of the present invention can be expanded.

  According to such an invention, while maintaining the collection rate, the wearer's breathing can be avoided and leakage can be prevented. It is possible to provide a mask capable of obtaining the effects of hay fever and an anti-chemical substance. In addition, the present invention can be applied to a gas-proof and dust-proof mask for the purpose of dust-proofing and protection of chemical substance suction.

It is a perspective view showing the whole mask composition concerning a 1st embodiment. It is explanatory drawing which shows the whole structure of the mask which concerns on 1st Embodiment, and shows the state with which the wearer was mounted | worn from a side surface. It is a disassembled perspective view of the mask which concerns on 1st Embodiment. (A) is a top view explaining the state with which the mask based on 1st Embodiment was mounted | worn with the wearer, The same figure (b) is the front view. It is a perspective view which shows the state which mounts the filter bag which concerns on 2nd Embodiment in a mask main body. The mask which concerns on a prior art example is shown, The figure (a) is explanatory drawing which shows the state with which the mask was mounted | worn by the wearer from upper direction, The figure (b) is the front view.

[First Embodiment]
(Mask structure)
Hereinafter, various embodiments representing the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an overall configuration of a mask 1 according to the present embodiment. FIG. 2 is an explanatory view showing a side view when the mask according to the present embodiment is mounted, and FIG. 3 is an exploded perspective view of the mask 1 according to the present embodiment.

  In this embodiment, as shown in FIGS. 1 and 2, the mask 1 extends from both sides of the mask body 2 and the mask body 2 that covers at least the lip 51 and the nostrils 52 of the wearer 5 during wearing. 5 and a pair of support strings 3 that are hung on both ears. And by mounting | wearing with this mask 1, the ventilation | gas_flow filtering method of this invention can be implemented.

  The support string body 3 is an elastic rubber string or the like, and is formed in an annular shape so as to be sewn to the mask body 2 and to be hung on both ears of the wearer 5.

  As shown in FIG. 2, the mask main body 2 is a filter member that is in close contact with the wearer 5 around the lip 51 and the nostril 52, and is composed of a laminated body in which a plurality of sheet members are overlapped. In the present embodiment, as shown in FIG. 3, the mask body 2 is disposed on the lip 51 or nostril 52 side of the wearer 5, and has an inner layer sheet 21 having a contact surface that is in close contact with the lips of the mask body 2, and the outside air side. The outer layer sheet 23 is disposed between the inner layer sheet 21 and the outer layer sheet 23, and the intermediate layer sheet 22 is disposed inside the mask body 2.

  The sheet member which comprises each layer is formed with the nonwoven fabric which uses polyester, polyethylene, polyurethane acrylic, cotton, woolly nylon, etc. as a raw 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 layer sheet 21 is formed of a material having a good touch. On the other hand, the middle layer sheet 22 is formed of a filter material having a fiber density higher than that of the outer layer sheet 23 and the inner layer sheet 21, and its collection rate is 99%.

  In addition, as the inner layer sheet 21 and the outer layer sheet 23, a highly water-repellent nonwoven fabric that maintains air permeability can be used, and it is possible to maintain a level in which moisture or the like is not attached to the lip 51 side (inner side). In addition, a highly pseudo-aqueous non-woven fabric is used for the purpose of providing water retention and moisture retention on the air intake side (outer side) when exposed to the outside air. The outer layer sheet 23 is formed with a plurality of pleats 24 extending in the width direction.

  The edges of the sheets 21 to 23 are bonded to each other by heat welding (heat sealing), other pressure bonding methods, or an adhesive material such as an adhesive sheet to form the mask body 2, and the two internal spaces 20 a are formed therein. , 20b are formed. The mask body 2 having such an internal space is strong enough to accumulate the porous material 4 filled therein in a certain shape and flexible enough to match the shape of the mouth and nose of the wearer 5. Have

  Each internal space is filled with a large number of granular porous materials 4. That is, the porous material 4 is filled between the lip side of the middle layer sheet 22 and the contact surface of the inner layer sheet 21, and the porous material 4 is also filled between the middle layer sheet 22 and the outer layer sheet 23. . Thus, in this embodiment, the front and back of the middle layer sheet 22 are filled with a large number of porous materials 4.

  Here, the porous substance 4 is configured to be filled on the front and back of the middle layer sheet 22 inside the mask main body 2, but the present invention is not limited to this, and at least in the inner space 20 a ( The porous material 4 is filled between the lip side of the middle layer sheet 22 and the inner layer sheet 21 in close contact with the lip of the mask body 2. The porous material 4 disposed inside the mask main body 2 functions as a mask wet filter. Specifically, the porous substance 4 is filled in the internal space of the mask body 2 so that granular foamed polystyrene beads having a diameter of 1 to 6 mm are mixed in about 5 to 6 layers, and the thickness of the mask body 2 is 10. It is created to be about 50 mm.

  As described above, since the plurality of porous materials 4 are filled in the internal space of the mask body 2, the mask body 2 has a gap between the porous materials 4 as shown in FIG. 4. A ventilation path 6 is formed. Here, since the porous material 4 has a spherical shape, the contact between the spheres becomes a point-like shape, and as a whole path, each path formed between the spheres repeats joining and branching in a substantially three-dimensional stitch shape. Thus, a sufficient ventilation path 6 is formed for the mask body 2. In the present embodiment, the porous material 4 is provided in each of the internal space 20a formed by the inner layer sheet 21 and the intermediate layer sheet 22 and the internal space 20b formed by the intermediate layer sheet 22 and the outer layer sheet 23. A sufficient ventilation path 6 is secured in the internal space.

In the present embodiment, the spherical surface of the porous material 4 is subjected to, for example, water retention and moisture retention such as a thickener such as xanthan gum, carbomer, carrageenan, and pectin, emulsification promotion, separation prevention, and shape retention effect. It is also possible to coat with a substance having Further, the substances to be coated include makeup additives such as food additives, lipsticks and foundations, and the substances having water retention and moisture retention include cosmetic oils and cosmetic materials.
In this case, water molecules adhering to the porous material 4 are held on the surface portion of the porous material 4 and have a high water retention effect. This allows fine particles such as dust, pollen, pollens, viruses, bacteria, formaldehyde, asbestos, radioactive substances, and odorous substances to adhere to the sphere surface. Can prevent hay fever, viral infections, and bacterial respiratory tract infections. In addition, deodorizing effect by adsorption of odorant is expected.

  In addition, liquids such as antibacterial / antibacterial agents, preparations, antiviral preparations, preparations having a deodorizing effect, chemical substance decomposition preparations, and fragrances can be used. Here, for these preparations, commercially available preparations having antibacterial and antiviral effects, such as hand washing, washing, wiping, oral cleaning agents, soaps, etc., can be used. Examples of the decomposition preparation include preparations that decompose formaldehyde and the like, and these can be coated. Thus, the application range is wide.

  As described above, the porous material 4 can be used according to the purpose by melting and containing a chemical substance, an antibacterial agent, etc. in the thickener and moisturizing agent on the surface of the sphere according to various purposes. Is possible. Water molecules may be attracted to the surface of the sphere by static electricity generated in the porous material 4 to increase the adhesion to the sphere.

(Ventilation filtering method)
And by mounting | wearing with such a mask 1, the ventilation | gas_flow filtering method of this invention is realizable. That is, in this ventilation filtering method, the middle layer sheet 22 is arranged inside the bag-shaped mask body 2, and in the mask body 2, at least contact with the lip 51 side of the middle layer sheet 22 and the lip of the mask body 2. A large number of granular porous materials 4 are filled between the surface (the inner surface of the inner layer sheet 21).

  Then, the mask main body 2 filled with the porous material 4 is worn by hooking the pair of support strings 3 and 3 on the ears of the wearer to support the mask main body 2 so as to be in close contact with the lips of the wearer 5. A person's lip 51 and nostril 52 are brought into close contact with each other. Thereby, since the granular porous material 4 is filled at least between the inner layer sheet 21 and the middle layer sheet 22, a predetermined gap is formed between the lip 51 and the middle layer sheet 22 having a high collection rate. The ventilation path 6 formed by the gap between the porous materials 4 can be formed therebetween.

(Action / Effect)
According to this embodiment, since the granular porous material 4 is filled in the internal spaces 20a and 20b of the mask body 2 made of a three-layer laminate, while maintaining the collection rate, Breathing can be facilitated and leakage can be prevented.

  That is, when the mask main body 2 filled with the porous material 4 is mounted so as to cover the lips 51 and the nostrils 52 of the wearer, the porous material having a granular shape is formed between the inner layer sheet 21 and the middle layer sheet 22. Since the substance 4 is formed, as shown in FIG. 4, the middle layer sheet 22 having a high fiber density is disposed at a predetermined distance from the lip 51 and the nostril 52 of the wearer, and the mask body. A ventilation path 6 is sufficiently secured inside 2 by the gap between the porous materials 4.

  Then, when the wearer wears the mask 1 according to the present embodiment and inhales, the suction pressure generated by the inhalation is as shown in FIG. 4 from the peripheral portion A1 located immediately before the lips and nostrils, from the front surface of the mask body. Since the entire side surface A2 is dispersed, the suction area can be increased. Thereby, since the ventilation resistance per unit area with respect to a wearer's inhalation can be made low, it can avoid that a wearer's breathing becomes difficult.

  More specifically, the volume flow rate (Q) of the air that the wearer inhales at a time can be expressed by the product of the cross-sectional area (A) through which air passes and the velocity of the air by suction (flow velocity (V)). . Here, when the volume flow rate (Q) generated by the intake air is constant, the velocity (V) of the air passing through the mask 1 can be expressed by a quotient of the volume flow rate (Q) and the cross-sectional area (A). .

  Here, in the conventional mask 1a shown in FIGS. 6A and 6B, the lip 51 and the nostrils 52 of the user are overlapped with the inner layer sheet 21a, the middle layer sheet 22a having a high fiber density, and the outer layer sheet 23a. 6 (b), the suction pressure generated by inhalation acts only on the peripheral portion A1 located immediately before the lips and nostril, so that the cross-sectional area (A1) is It becomes narrower and the flow velocity (V) becomes larger. However, since the middle layer sheet 22a is formed of a material having a high fiber density, if the suction area is narrow, the ventilation resistance becomes higher, so that the flow rate of the intake air is limited, and the wearer's breathing becomes difficult.

  In addition, if the suction area is reduced and the ventilation resistance is high, so-called leakage occurs in which the air flows into the mask without passing through the filter from the periphery of the mask with low ventilation resistance. I inhale.

  On the other hand, in the present embodiment, as shown in FIG. 4A, a sufficient ventilation path 6 is secured in the mask body 2 by the gap between the porous materials 4, and therefore suction generated by intake air is generated. As shown in FIG. 4B, since the pressure is distributed over the entire front surface A2 of the mask body 2, the cross-sectional area through which the air passes is widened, and the amount of inhalation passing from around the lips 51 and nostrils 52 is constant. More than the amount can be secured. Thereby, the ventilation resistance with respect to attraction | suction becomes low, and it can avoid that a wearer's breathing becomes difficult.

  In addition, when the suction area is widened and the ventilation resistance is low, air can be prevented from flowing into the mask from the periphery of the mask without passing through the filter, so that the air sucked into the lips 51 and the nostrils 52 is Since the air has passed through the middle layer sheet 22, a high filter effect that maintains the collection rate is exhibited.

  In the present embodiment, the porous material 4 is configured to be filled on the front and back of the intermediate layer sheet 22 inside the mask main body 2, but the present invention is not limited to this, and at least the internal space 20a. The porous material 4 may be filled inside (between the lip side of the middle layer sheet 22 and the inner layer sheet 21 in close contact with the lip of the mask body 2), and the porous material 4 is omitted in the internal space 20b. May be. Even in this case, since the suction resistance can be increased and the ventilation resistance can be lowered, it is possible to avoid the wearer's breathing and to prevent leakage while maintaining the collection rate. Furthermore, since the outer layer sheet 23 and the internal space 20b can be omitted, the manufacturing cost can be kept low.

  Furthermore, in this embodiment, since the mask body 2 filled with the porous material is supported by the support string body 3, the appearance and structure can be simplified, and fashionability can be improved. In addition, the manufacturing cost can be kept low, and the utility is high. Moreover, in this embodiment, since a polystyrene foam bead is used as a granular porous substance, the mask 1 can be manufactured with a lighter and less expensive material, and the weight reduction and cost reduction of the mask 1 as a whole are further promoted. be able to.

  Furthermore, since moisture can be adsorbed by a large number of micropores formed on the surface of the porous material 4, the humidity in the ventilation path 6 formed in the mask can be kept above a certain level, and the intake air is vented. When passing through the path 6, dust and viruses in the air are trapped on the surface of the porous material, and a high filter effect is exhibited.

  That is, when the intake air passes through the inside of the mask body 2, it touches the spherical surface of the wet polystyrene foam beads so that the air contact at this time is the pollen, virus, bacteria, chemical substance of particles contained in the air. Is adsorbed. Thereby, for example, allergens that cause hay fever, airborne viruses such as influenza virus, bacteria, chemical substances such as formaldehyde, asbestos, and radioactive substances can be effectively removed. In addition, the water retaining ability of the porous substance can prevent the oral mucosa, nasal mucosa, pharyngeal mucosa, airway mucosa and the like from being dried.

  Further, in this embodiment, the porous material 4 is impregnated or coated with a liquid such as a sterilizing / antibacterial agent or a fragrance, so that the multifunctional function of the mask 1 can be achieved. Can add value.

[Second Embodiment]
Next, a second embodiment of the present invention will be described. In the first embodiment described above, the porous material 4 is arranged inside the mask body 2. However, in this embodiment, the filter bag filled with the porous material 4 can be stored in a commercially available mask. This is the gist. FIG. 5 is a perspective view showing a state in which the filter bag according to the second embodiment is mounted on the mask body.

  As shown in FIG. 5, the filter bag 40 according to the second embodiment is a filter bag in which a porous material 4 is filled in a commercially available mask 1 b composed of a mask body 2 and a pair of support strings 3. 40 is attached.

  The filter bag 40 is a mask filter bag 40 that is in close contact with the periphery of the lip 51 and the nostril 52 of the wearer 5. The filter bag 40 is strong enough to accumulate the porous material 4 filled therein into a certain shape, and the wearer. 5. Flexibility to the extent that it matches the shape of the mouth and nose of 5. In addition, the filter bag 40 has a structure that provides sufficient breathability without obstruction of breathing (inhalation) and that can exhibit the effects of antiviral, anti-pollen and anti-chemical substances in daily life.

  In this embodiment, the filter bag 40 can be attached to a commercially available gauze mask, nonwoven fabric mask, plastic dust mask, etc. that are currently used. In other words, the nonwoven fabric or polyester, polyethylene, polyurethane acryl, cotton, wooly nylon, etc. are cut according to the shape of the conventional non-woven fabric 3D mask or plastic dust mask to match existing products. It has a large size and a three-dimensional shape, and may be formed of a nonwoven fabric or a net.

  The filter bag 40 is filled with a large number of granular porous substances 41 and functions as a mask wet filter. Specifically, the filter bag 40 forms a non-woven fabric or a net bag conforming to the shape of the mask main body 2, and 5 polystyrene foam beads mixed with a diameter of 1 to 6 mm as the porous material 41 are contained therein. It is inserted so as to have about 6 layers.

  As the non-woven bag body, a highly hydrophobic non-woven fabric having air permeability can be used, so that moisture and the like can be maintained on the lip 51 side (inner side), and the outside air can be maintained. A highly pseudo-water-based non-woven fabric is also used on the air intake side (outside) for the purpose of providing water retention and moisture retention. Further, in the case of the net body, it is assumed that the mesh body has a knitted shape that is large enough to accommodate the granular porous material 4.

  As for the mask 1b, the configuration of the portion excluding the porous material 4 from the mask 1 according to the first embodiment described above is the same. That is, existing products such as currently used gauze masks, nonwoven fabric masks, and plastic dust masks can be used as they are. In the present embodiment, a middle layer sheet 22 having a collection rate of 95% or more is disposed inside the mask body 2.

  In the present embodiment, the mask 1 b can be accommodated in which the filter bag 40 is accommodated in the mask main body 2. Specifically, the pocket 25 is formed on the inner surface of the commercially available mask body 2, and the filter bag 40 is stored in the pocket 25. In addition, as a structure of the mask 1 which accommodates the filter bag 40, the fixing | fixed part which made the double-sided tape, the magic tape (trademark), etc. is provided in the inner surface (lip side of the inner layer sheet | seat 21) surface of the mask main body 2, and this fixing You may make it affix the bag body with which the porous substance 4 was filled in the part.

  Thus, by storing the filter bag 40 in the mask body 2, the porous material 4 in the filter bag 40 is brought into contact with at least the lip side of the intermediate layer sheet 22 and the lip of the mask body 2 (here Then, it fills between the surface of the bag body which comprises the filter bag 40, or the surface of the formed pocket).

  Here, the filter bag 40 is accommodated only on the inner side surface of the commercially available mask main body 2. However, for example, a fixing portion or a pocket for accommodating the filter bag 40 is also formed on the outer side surface of the mask main body 2 to form the intermediate layer sheet 22. It is good also as a structure by which a filter back | bag is arrange | positioned on the front and back.

  The filter bag 40 has a contact surface that is in close contact with the lip 51 of the filter bag 40, a horizontal linear nasal hardened portion corresponding to the position under the nose of the wearer 5, and both sides of the lip of the wearer 5. It is preferable to form a pair of nose lip groove hardened portions corresponding to the braid line (nasal lip groove). Specifically, the nasal hardening part is formed in a mountain fold shape by stitching the nonwoven fabric in the substantially central part or by heat welding or the like, and the pair of nasal cleft hardening parts is nasal hardening It is formed in a mountain fold shape by stitching the non-woven fabric of the contact surface along the constriction line from both end positions of the part. As a result, the filter bag 40 has a shape in which the subnasal hardened portion and the pair of nostril groove hardened portions protrude from the contact surface and surrounds the lip, and the shape is maintained. Yes.

  With such a configuration, a constant space is formed in the filter bag 40 at locations corresponding to the subnasal position and the nasal lip groove (conical line) positions on both sides of the lip 51, and the porous material 4 is collected there. Will be. Specifically, anatomically, the nose tip, the tip portion of the lip 51, and the buttocks are arranged in a straight line, and the lower nose portion is formed so as to be recessed from the straight line. There is a groove called a groove (hollow line). In this embodiment, a bulge is formed at a position corresponding to the nose by the nasal hardening part, and the lips are formed from above (upper lip part) and from the side (mouth corner part) at the nasal hardening part and the nasal groove hardening part. Since it can be surrounded, the porous material 4 is held at an appropriate thickness at the nostril position and lip position when worn, and dust and viruses in the air are surely porous when the intake air passes through the intake path. It is trapped on the material surface and exhibits a high filter effect. Also in the present embodiment, the porous material 4 may be impregnated with a liquid such as the above-described chemical liquid.

(Action / Effect)
In such a filter bag 40, 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 the filter 1 is attached to the mask body 2 while the mask 1 is attached. The wearer's lip 51 and nostril 52 are worn.

  Then, since the filter bag 40 filled with the porous material 4 is disposed between the middle layer sheet 22 formed on the mask body 2 and the lips 51 and nostrils 52 of the wearer, the middle layer sheet 22 is It is arranged at a place away from the wearer's lip 51 and the like by a predetermined length. The ventilation path 6 is sufficiently secured by the gap between the porous materials 4 between the middle layer sheet 22 and the lip 51 of the wearer.

  As a result, even if the wearer wears the mask 1 and inhales, the suction pressure generated by the inhalation is dispersed throughout the mask body 2, so that the suction area can be increased and the ventilation resistance against inhalation can be reduced. . As a result, while maintaining the collection rate, it is possible to prevent the wearer from breathing hard and to prevent leakage.

  Moreover, since the filter bag 40 according to the present embodiment can be stored in the mask 1, it is economical because only the filter bag 40 can be replaced, and the filter bag 40 is used in combination with an existing mask. This also makes it possible to expand the application range of the present invention.

[Example of change]
The description of each embodiment described above is an example of the present invention. For this reason, the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made according to the design or the like as long as the technical idea according to the present invention is not deviated. In this modified example, the same components as those in the above-described embodiment are denoted by the same reference numerals, and the functions and the like are the same unless otherwise specified, and the description thereof is omitted.

  For example, in each of the above-described embodiments, the mask main body 2 has a three-layer structure in which one middle layer sheet 22 is formed. However, the present invention is not limited to this, for example, A plurality of intermediate layer sheets 22 may be arranged inside the mask main body 2. Even in this case, the porous material 4 is filled between the plurality of middle layer sheets 22.

  Here, as in the first embodiment, when the porous substance 4 is filled in the mask body 2, the porous substance 4 is filled between the plurality of middle layer sheets 22. On the other hand, when the filter bag 40 is used as in the second embodiment, the filter bag 40 may be fixed or stored between a plurality of middle layer sheets 22.

  In the second embodiment described above, the pocket 25 is provided in the commercially available mask 1b and the filter bag 40 is accommodated. For example, the support string bodies 3 and 3 are attached to the filter bag 40, and the filter is directly filtered. The structure which mounts the bag 40 may be sufficient.

In this case, a filter member made of the same material as the middle layer sheet 22 is provided inside the filter bag 40. The filter bag 40 is filled with a large number of granular porous materials at least between the lip side of the filter material and the contact surface in close contact with the front lip of the filter bag 40. .

A1 ... peripheral part of lips or nostrils A2 ... entire front side 1 (1a, 1b) ... mask 2 ... mask body 3 ... support string 4 ... porous material 5 ... wearer 6 ... ventilation path 20a, 20b ... internal space 21 , 21a ... inner layer sheet 22, 22a ... middle layer sheet 23, 23a ... outer layer sheet 24 ... pleat 25 ... pocket 40 ... filter bag 41 ... porous material 51 ... lip 52 ... nostril

Claims (12)

A pair of support strings that are hung on the wearer's ears;
The inner layer sheet is disposed on the lip or nostril side of the wearer and has a contact surface that is in close contact with the lip of the wearer, and the outer layer sheet disposed on the outside air side. A bag-like mask body that is in close contact with the wearer's lips;
A filter material that is disposed inside the mask main body and has a collection rate of 95% or more, which is higher in fiber density than the inner layer sheet and the outer layer sheet ,
Inside the mask body, a large number of granular porous materials having a diameter of 1 to 6 mm are filled at least between the lip side of the filter material and the contact surface in close contact with the lip of the mask body. A three-dimensional stitch-shaped ventilation path is formed in an inner space formed by the inner layer sheet and the filter material, and a three-dimensional stitch-shaped ventilation is formed in the inner space formed by the filter material and the outer layer sheet. A mask characterized in that a path is formed. A plurality of the filter materials are arranged,
The mask according to claim 1, wherein the porous material is filled between the plurality of filter materials. Inside the mask body, the porous material is filled in 5 or 6 layers , and the filter material is inserted into the lip of the wearer by the porous material filled between the inner layer sheet and the filter material. The mask according to claim 1, wherein the mask is disposed at a predetermined distance from the nostril. The porous material contains at least polystyrene foam,
The filter material is a non-woven fabric containing any of polyester, polyethylene, polyurethane acrylic, woolly nylon,
The mask according to claim 1, wherein the porous material is impregnated or coated with a liquid. A mask that covers at least the wearer's lips when worn,
A filter material that is disposed inside the mask body and has a fiber density higher than that of the inner layer sheet and the outer layer sheet and having a collection rate of 95% or more; and is housed in the mask body, and at least the lip side of the filter material And a filter bag that is disposed between a contact surface that is in close contact with the lip of the mask body, and is formed of a mesh body having air permeability,
It is composed of a large number of granular porous materials mixed with a diameter of 1 to 6 mm filled in the filter bag,
A mask characterized in that a three-dimensional stitch-shaped ventilation path is formed in the internal space of the filter bag. A plurality of the filter materials are arranged,
The mask according to claim 5, wherein the porous material is also filled between the plurality of filter materials. Inside the mask body, the porous material is filled so as to have 5 or 6 layers , and the porous material filled between the inner layer sheet and the filter material allows the filter material to be worn by the wearer. The mask according to claim 5 or 6, wherein the mask is disposed at a predetermined distance from the lips and nostrils. The porous material contains at least polystyrene foam,
The filter material is a non-woven fabric containing any of polyester, polyethylene, polyurethane acrylic, woolly nylon,
The mask according to claim 5, wherein the porous material is impregnated with a liquid. Inside the bag-shaped mask body composed of an inner layer sheet having a contact surface arranged on the lip or nostril side of the wearer and in close contact with the lip of the wearer, and an outer layer sheet arranged on the outside air side , A filter material having a fiber density higher than that of the inner layer sheet and the outer layer sheet is 95% or more ,
Inside the mask body, at least between the lip side of the filter material and a contact surface in close contact with the lip of the mask body, a large number of granular porous materials having a diameter of 1 to 6 mm are filled. A three-dimensional stitch-shaped ventilation path is formed in the inner space formed by the inner layer sheet and the filter material, and a three-dimensional stitch-shaped ventilation path is formed in the inner space formed by the filter material and the outer layer sheet. Form the
A ventilation filtering method comprising: supporting the mask body so as to be in close contact with the lip of the wearer. A plurality of the filter materials are arranged,
The ventilation filtering method according to claim 9, wherein the porous material is also filled between the plurality of filter materials. Inside the mask body, the porous material is filled so as to have 5 or 6 layers , and the porous material filled between the inner layer sheet and the filter material allows the filter material to be worn by the wearer. The ventilation filtering method according to claim 9 or 10, wherein the ventilation filtering method is arranged at a position away from the lip and nostril by a predetermined length. The porous material contains at least polystyrene foam,
The filter material is a non-woven fabric containing any of polyester, polyethylene, polyurethane acrylic, woolly nylon,
The ventilation filtering method according to claim 9, wherein the porous material is impregnated with a liquid.

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