JP7048010B2 - Masks, respiratory load masks and mask cases - Google Patents

Description

The present invention relates to a mask composed of a stack of a plurality of filters and a dedicated mask case, and more particularly to a mask and a dedicated case capable of suppressing the invasion of fine particles or the like or giving a load to respiration. be.

General masks are used to prevent pollen and dust from entering the bronchi, or to prevent the spread of droplets generated by coughing or sneezing. be. Recently, masks are often worn as a means of self-defense protection from fine particles and viruses. By the way, as the above-mentioned target mask, there are a disposable type made of a single piece of non-woven fabric and the like, and a reusable type made by laminating a sheet material such as gauze.

The disposable type mask uses a non-woven fabric exclusively, and in the production of the non-woven fabric used for the mask, the fiber diameter and the basis weight are set in consideration of the balance between the air permeability and the particle trapping property. (See Patent Document 1). However, although it is possible to capture particles with a relatively large particle size such as dust and droplets while maintaining air permeability, the capture property is improved in order to prevent the intrusion of fine particles with a smaller particle size. In order to improve the trapping property of the particles that prevent the invasion of the fine particles, the air permeability is lowered.

Therefore, in order to solve the above-mentioned problem of deterioration of air permeability, each part is configured for each part, and in the region where these parts are to be joined, the parts are partially overlapped and a part of the laminated part is joined. A part having a part and a non-joined part that does not join the other parts has been developed (Patent Document 2). With a mask having such a configuration, the non-joint parts are in close contact with each other due to the influence of atmospheric pressure during suction, and the non-joint parts are opened during exhalation, thus improving air permeability (particularly exhalation of exhaled breath). It is supposed to be possible.

On the other hand, in the type of mask that can be used repeatedly, a filter formed of a porous sheet material such as gauze is laminated, and the deposits can be removed by washing and used again. It is well known that it is configured as such. This type of mask is intended to capture particles having a relatively large particle size, and is not suitable for use in preventing viral infections such as fine particles and influenza. Therefore, in order to obtain the effect of preventing infection of viruses and the like even in a type of mask in which filters are laminated, a mask in which a sheet material for inactivating the virus adhering to the mask is laminated has been developed. For example, the outermost layer and the innermost layer have been developed. There was a filter in which virus-inactivated fine particles were carried (see Patent Document 3).

In the above-mentioned patent document, although the disposable type is widely used because of its ease of use, it is necessary to change the catchability depending on the substance to be captured by the mask. That is, if the particle size of the substance to be captured becomes smaller, the capture property must be improved. However, in the mask shown in Patent Document 1 described above, the catchability is adjusted according to the diameter and the basis weight of the fibers used, but when the catchability is improved, the air permeability is lowered at the same time. As a result, it was difficult to improve only the catchability without limitation.

Further, as shown in Patent Document 2, in the case of a configuration in which the parts are partially laminated in the region where the parts are to be joined and the joint portion and the non-joint portion are provided, the gap between the non-joint portions is used when the exhaled breath is discharged. However, it is said that the non-joint does not open at the time of intake. However, theoretically, at the time of intake, the air pressure in the inner space of the mask drops, so that the non-joints are closed in an overlapping state, so that outside air does not flow through the gaps between the non-joints. Although it is possible to suck the air that has passed through the mask body, if the mask body is wrinkled and attached, there may be a concern that outside air will flow in through the gaps in the non-joint portion. Met.

Furthermore, when a disposable mask as described above is used to prevent virus infection, it is assumed that it is possible to capture relatively large particles of droplets, but on the mask surface (especially the outer surface). Droplets, etc. containing captured infectious viruses, etc. will adhere, and if the surface is inadvertently touched with fingers, there is concern that the infection will be caused by droplet substances whose infectivity has not decreased. .. Therefore, after use, the mask had to be removed from the face so as not to touch the surface, the mask surface had to be folded inward, and the mask had to be disposed of in a sealed state so as not to be scattered in the air.

On the other hand, in the case of a mask that can be used repeatedly as shown in Patent Document 3, the virus and the like contained in the droplets and the like adhering to the surface of the mask are inactivated by the virus inactivating fine particles. There is. Therefore, it inactivates the virus captured by the mask (adhered to the surface of the mask) and is suitable for use as a preventive measure against infections such as influenza. No special technique was used for capture and breathability. That is, there is an inherent possibility that it may not be able to contribute to sufficient infection prevention depending on the ability to capture a droplet substance having a virus.

By the way, in recent years, it has been reported that fine particles (for example, PM2.5) having a small particle size among particulate matter (PM) or microviruses such as influenza will spread health hazards, and the fine particles are sufficiently captured. The mask to get is coveted. Therefore, the applicant of the present application has developed a mask in which a charging filter, a mesh filter having a small opening length, and an antibacterial filter are laminated (Patent Document 4).

Japanese Unexamined Patent Publication No. 2009-273726 Japanese Unexamined Patent Publication No. 2012-254272 WO2011 / 040035 Gazette Japanese Unexamined Patent Publication No. 2015-209568

The mask described in Patent Document 4 described above was suitable as a mask for preparing for fine particles (for example, PM2.5) having a small particle size among particulate matter (PM) or microviruses such as influenza. .. This was to be adsorbed by a charging filter and inactivated by an antibacterial filter, but since the virus and the like stayed in the charging filter, it was not possible to remove all the viruses and the like. In addition, it was not possible to deal with the approach of flying insects, such as the repellent of mosquitoes, which is the cause of the outbreak of Zika fever, which has been reported recently. Furthermore, since all the filters to be stacked were integrally configured, they could not be replaced, and the entire mask was washed and used, but the number of times was limited. In addition, there has been a longing for a mask that allows the user to change the filter depending on the object to be protected.

The present invention has been made in view of the above points, and an object of the present invention is to prepare for the invasion of fine particles, viruses, etc., and to provide a mask having an effect of repelling flying insects, and to provide the mask. A special case is provided.

Therefore, as the present invention relating to the mask, first, a mask formed by laminating a plurality of filters, at least, an antistatic filter in which carbon yarn is woven into a cloth made of polyester fibers, and a tolumid-based composite compound. It is characterized in that an insect repellent filter made of cotton cloth impregnated with the above material and a deodorant filter made of rayon fiber mixed with a water-soluble amphoteric ionic polymer are laminated.

According to the above configuration, due to the presence of the antistatic filter, fine particles and viruses are primarily protected by the filter, and secondly, the fine particles and viruses are attached to the filter surface. It is possible to eliminate it without stopping it. In addition, the insect repellent filter can limit the approach of flying insects. Further, the deodorant filter can limit the diffusion of odorous components and carbon dioxide that attract flying insects such as mosquitoes, and can improve the repellent effect of flying insects. In particular, since rayon fiber mixed with a water-soluble zwitterionic polymer is used for the deodorant filter, it absorbs the moisture contained in the exhaled breath and suppresses its generation by the hydration of carbon dioxide. Can be done.

In the invention of the above configuration, each filter may be arranged between the innermost laminated base layer and the outermost laminated mesh-like nylon mesh fabric surface layer. .. At this time, the base layer and the surface layer are partially sewn while forming a non-sewn region, and the filter constituent portion by each of the plurality of filters is arranged between the base layer and the surface layer. Can be configured to

In the case of the above configuration, by using gauze or the like as the base layer, it is possible to realize the stabilization of the shape by the nylon mesh fabric while improving the feel of the portion where the skin comes into contact. It should be noted that the stabilization of the shape means that the restoration is suppressed in the state where the shape is freely changed, and does not mean that the shape is fixed. Further, when the filter component is an aggregate of a plurality of filters, it may be in a state where these are integrally laminated, or in a state where a plurality of filters can be separated.

In the invention having the above configuration, the main body is partially laminated while the base layer laminated on the innermost side and the surface layer made of the mesh-like nylon mesh fabric laminated on the outermost side form a non-sewn region. It is sewn, and any of the plurality of filters is laminated on the base layer or the surface layer, and the filter component of the remaining filters is arranged between the base layer and the surface layer. can do.

In such a configuration, the filter common to the mask is fixedly provided on the base layer or the surface layer regardless of the use and purpose. In particular, in the case where a bag is formed and a filter is inserted inside the bag, even if a filter that matches the purpose of use is inserted and used, the minimum filter that should function as a mask is used. Can be provided. The term of sewing means to sew and integrate them, and is used as a general method for manufacturing a mask. Therefore, in addition to the case of direct sewing, the case of covering the seam allowance and sewing is included. Further, the sewing method when the threads are sewn together is not limited, and the type of thread used is not particularly limited. Furthermore, depending on the material, welding may be possible, and in cases where bonding is possible with a special adhesive, the term sewing is understood to mean welding or bonding. The same applies to the terms of sewing in the following.

The second aspect of the present invention relating to the mask is a main body portion in which a base layer arranged inside and a surface layer arranged outside are partially sewn while forming a non-sewn region. The filter component is provided with a filter component that can be taken in and out of the main body from the non-sewn area, and the filter component is impregnated with an antistatic filter in which carbon yarn is woven into a cloth made of polyester fibers and a tolumid-based composite compound. It is characterized by comprising one or more filters selected from an insect repellent filter made of cotton cloth and a deodorant filter made of cloth made of rayon fiber mixed with a water-soluble amphoteric ionic polymer.

According to the above configuration, it is possible to use the mask as a mask according to the application by using a filter component having a different configuration as appropriate while using one main body. For example, a filter component equipped with an insect repellent filter is used during the summer when pests frequently fly, and a filter component equipped with an antistatic filter is used to eliminate viruses and the like in winter. It can be changed according to the season. Further, as a matter of course, it is also possible to use a filter component including all the filters.

A third aspect of the present invention relating to the mask is a main body portion in which a base layer arranged inside and a surface layer arranged outside are partially sewn while forming a non-sewn region. An antistatic filter in which carbon threads are woven into a cloth made of polyester fibers, an insect repellent filter made of cotton cloth impregnated with a tolumid-based composite compound, and a filter component that can be taken in and out of the main body from the non-sewn area. And one or more filters selected from the deodorant filter made of the cloth made of rayon fiber mixed with the water-soluble amphoteric ionic polymer are collectively combined with the base layer, the surface layer or the filter constituent part. , Or it is characterized in that it is divided into two or more and laminated.

According to the above configuration, it is possible to stack a filter having a specific effect as an essential filter in advance on the base layer or the surface layer, and then additionally stack a filter having another effect as a filter component. Become. Further, these filters do not have to have different effects, and it is possible to add a filter of the same type as a filter component in order to increase a specific effect. In the case of the above configuration, a mesh-like nylon mesh fabric may be used for the surface layer, but the surface layer is composed of another material or a filter, and the nylon mesh fabric is used as a part of the base layer. May be used for. The purpose of this nylon mesh fabric is to stabilize the shape, and it is sufficient that the shape is stabilized as a whole by integrating the base layer and the surface to be integrated as a result. , By being used for either one, the purpose can be achieved. Further, when the nylon mesh fabric is used for the base layer, the feel of the portion where the skin comes into contact can be improved by using gauze or the like on the innermost side of the base layer.

Among the inventions having the above configurations, in the invention forming the base layer and the surface layer, these two layers are sewn at the lower end edge and the left and right end edges, and the main body portion in which the opening is formed at the upper end edge. The filter component can be freely taken in and out of the opening.

In the case of the above configuration, the base layer and the surface layer form a bag body, and the filter component portion can be inserted or taken out from the opening inside the bag body. At this time, since it is possible to put in and take out all or a part of each filter forming the filter component, the filter forming the filter component can be replaced, and the filter is taken out (in the state where the filter is taken out). That is, it is possible to wash only the bag body). When the filter component that can be taken in and out is a part of each of the filters, the other essential filters can be integrally configured by being sewn to either the base layer or the surface layer.

Further, in the invention of the above configuration, the filter component portion freely taken in and out from the opening may be formed by a laminated body integrated by sewing in a state where a plurality of filters are laminated. ..

In the case of the above configuration, when the user forms the filter component at the time of use, the necessary filters are laminated in a suitable order in advance, instead of inserting arbitrary filters into the bag body in an appropriate order. By inserting the integrated laminated body as a filter component, suitable use is possible. In particular, when all the filters for which the filter component should be formed are composed of an integral laminated body, the laminated body of the filters laminated in advance can be used as the filter component depending on the application and purpose. , It is possible to replace the filter component in units of the laminated body. As a matter of course, the laminated body integrally formed by the plurality of filters is not limited to forming the filter component portion with the laminated body as a unit, and by further laminating a plurality of the laminated bodies. A filter component may be formed. In this case, a single-layer filter and a laminated body may be used at the same time.

Further, in each of the above inventions, the base layer may be composed of two base material filters, and the deodorizing filter may be arranged in the middle of the two base material filters.

According to the above configuration, the base layer in contact with the user's mouth during use will be subject to thick exhaled breath and saliva droplets, but by providing a deodorant filter on this base layer, odors caused by these will be received. Improves the effect of suppressing. In particular, since the deodorant filter uses rayon fiber mixed with a water-soluble zwitterionic polymer as described above, it absorbs the moisture contained in the exhaled breath and reduces the carbon dioxide concentration due to hydration. In order to suppress it, it has the effect of preventing odors and repelling flying insects. The two base material filters constituting the base layer do not have to be filters of the same material, and a filter made of gauze, for example, is used on the side in contact with the mouth, and an antibacterial filter, for example, is used on the opposite side. It is also possible to use.

In the invention having the above structure, it is preferable that cotton having an appropriate thickness is laminated on the inner layer of the deodorizing filter.

In the case of the above configuration, not a little gap is formed between the mouth and the deodorant filter, and the presence of this gap can eliminate the suffocation caused by the user. In addition, by retaining saliva droplets and the like through the voids, it is possible to suppress the release of odor-causing substances and the like to the outside of the deodorizing filter.

In the invention of each of the above configurations, an eaves-shaped planar portion is formed on the upper edge of either the base layer or the surface layer, and the tip edge of the planar portion is continuous in the left-right direction. It is possible to provide an end edge portion to be provided, and both ends of the end edge portion may be locked to the left and right side portions of the base layer or the surface layer, and may be connected to a string member for mounting.

In the case of the above configuration, both ends of the end edge portion of the planar portion may be attracted to the user's face by the string member for attachment together with the left and right side portions of the planar portion, thereby stabilizing the wearing state of the mask. can. Further, the eave-shaped surface portion can prevent the exhaled air leaking from the peripheral edge of the mask from being blown to the eye area (particularly the lens of the glasses). In particular, by pulling the string member for wearing with the mask worn, the edge portion of the planar portion is pulled intensively, and the generation of a gap around the nose can be suppressed. The string member may be non-stretchable, but may be made of a stretchable member such as a rubber string.

Similarly, in the above invention, in either one of the base layer and the surface layer, an eaves-shaped planar portion is formed on the upper edge, and the tip edge of the planar portion is formed in the left-right direction. Is provided with a continuous edge portion, both ends of the edge portion are locked to the left and right sides of the base layer or the surface layer, and a telescopic string for attachment is inserted into the end edge portion. May be good.

In the case of the above configuration, since the elastic cord for attachment is inserted through the end edges that are continuous to the left and right in the eaves-shaped planar portion, when the mask is attached with the elastic cord extended. The edge of the eaves-shaped surface is urged toward the center of the head by the restoring force of the elastic cord. As a result, the end edge portion of the planar portion can be matched with the shape of the elastic cord, and can be flexibly adhered to the undulations of the face.

In addition, in the configuration having the eaves-shaped planar portion as described above, a long wire member made of a material that can be plastically deformed inside or on the end thereof is further attached to the end edge portion of the planar portion. It may be provided along the edge portion, and the upper portion of the base layer may be provided with a cushioning member having elastic force at two locations having appropriate intervals.

In the case of the above configuration, the shape of the edge portion of the planar portion can be stabilized by the plastic deformation of the wire member, and the edge portion becomes undulating around the nose when the mask is worn. After adjusting the shape in advance, the shape can be maintained. Therefore, the state of the eaves-shaped planar portion is stabilized. In addition, the cushioning members that are appropriately deformable can improve the adhesion on both sides of the nose due to the two cushioning members having a gap.

Further, in each of the inventions having the above configuration, in either the base layer or the surface layer, an eaves-shaped second planar portion is formed on the lower edge, and the second planar portion is formed. A second edge portion continuous in the left-right direction is provided on the tip edge of the above, and both ends of the second edge portion are locked to the left and right sides of the base layer or the surface layer, and are stretchable for mounting. It can be assumed that the string is inserted through the second edge portion.

According to the higher-level machine configuration, the second planar portion provided on the lower end edge of the base layer or the surface layer is arranged so as to cover the periphery of the jaw, and the elastic cord is inserted through the end edge portion. By doing so, the edge portion can be brought into close contact with the shape around the jaw. Therefore, when the mask is worn, it is possible to suppress the occurrence of a gap between the periphery of the mask and the face around the chin, especially when the mouth can be moved for conversation or the like.

In the present invention as a respiratory load type mask, in the invention relating to the mask having each of the above configurations, one or more of the above filters, or individual filters different from these, have an opening length of 60 nm or less. It is characterized by having a fine mesh structure.

According to the above configuration, by intentionally wearing a mask to make the patient feel a little stuffy, a load is applied to breathing, and the respiratory muscles other than the diaphragm can be trained. That is, it is said that the diaphragm and intercostal muscles act on general breathing, but in addition to these, the sternocleidomastoid muscle, rectus abdominis muscle, scalene muscle, etc. act on the respiratory movement, so these muscles are used. By training, it is possible to improve the breathing movement. By such training, metabolism can be enhanced, so a diet effect can be expected. It should be noted that the improvement of the breathing movement means that, for example, by training the muscles used for breathing as described above, the breathing stop time is shortened and the number of breathing stops is also reduced. By improving the respiratory movement, the effect of suppressing the onset of sleep apnea syndrome can be expected.

In addition, as a dedicated mask case for accommodating the mask of each of the above configurations, a bifurcated bottom surface portion and a top portion erected in the center thereof are provided, and a portion extending from one side of the bottom surface portion to the top portion is provided. It is characterized in that an open end edge is provided and opened to form an eaves-shaped end edge portion that covers the open end edge from the top. The mask case with the above configuration has a bifurcated bottom surface. By aligning the left and right ends of the mask with the two branched bottoms, the mask can be accommodated while maintaining its shape.

In the mask-only case having the above configuration, the open end edge and the eaves-shaped end edge portion may be configured to be freely closed by a fastener or a hook-and-loop fastener. In such a configuration, when the mask is housed in the case, it can be easily opened to prevent the surface of the mask from being exposed. In particular, when the mask is stored in the special case, the deformation of the mask can be suppressed, so that when the mask is washed, it can be put into the washing tub in the state of being stored in the special case. At this time, even when stirring or the like acts in the washing tub, the mask can be maintained in the special case by the above configuration.

It is explanatory drawing which shows the 1st Embodiment of this invention which concerns on a mask. It is explanatory drawing which shows the main body part of a mask. It is explanatory drawing which shows the main body part of a mask. It is explanatory drawing which shows the base layer of a mask. It is explanatory drawing which shows the structure of the filter component part (interpolation filter) of a mask. It is explanatory drawing which shows the main body part of the mask in the 2nd Embodiment of this invention which concerns on a mask. It is explanatory drawing which shows the main body part of the mask in the 2nd Embodiment of this invention which concerns on a mask. It is explanatory drawing which shows the main body part of the mask in the 2nd Embodiment of this invention which concerns on a mask. It is explanatory drawing which shows the use state of the 2nd Embodiment of this invention which concerns on a mask. It is explanatory drawing which shows the embodiment of this invention which concerns on a mask case. It is explanatory drawing which shows the usage mode of a mask case. It is sectional drawing of the mask case. It is explanatory drawing which shows the modification of the mask case.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a first embodiment of the present invention relating to a mask. The present embodiment is composed of a mask main body 1 and a filter component (interpolation filter) 2, and the mask main body 1 is formed with an opening 11 in which only the upper end edge is opened. By inserting the interpolation filter 2 from the opening 11, the mask A having a predetermined effect is formed. The mask body 1 is made of a part of the filter material, and together with the interpolation filter 2, can prevent the invasion of a predetermined substance. Here, the "filter constituent unit" is a member composed of one or a plurality of filters and provided separately from the mask main body 1, and indicates a portion having a purpose of exerting the filter function exclusively. It may be configured as an integrated single member as shown in the figure, it may be configured by being divided into a plurality of members, or it may be configured by a separate single filter. Since it is configured to be inserted into the mask body 1, it may be referred to as an "interpolation filter" below.

The mask body 1 is formed by integrating the base layer 3 and the surface layer 4 by sewing the periphery thereof. However, the upper end edge on which the opening 11 should be formed is a non-sewn area that is not sewn. Further, on the upper end edge of the base layer 3, a surface-like portion 31 formed by forming a cloth in the shape of an eave from the edge thereof is provided, and covers an appropriate range inside the base layer 3 (on the face side of the user). It is configured so that it can be done. A band-shaped end edge portion is provided on the tip edge 32 of the planar portion 31, and the inside thereof is made of plastically deformable (relatively small elastic force) resin (polyethylene) or metal. A wire member is inserted along the edge portion, and is deformed according to the undulations of the user's face surface so that the end edge can be brought into close contact with the face surface. Elastic rubber cords 5 and 6 are provided on both the left and right sides of the mask body 1 for ear hooking. The elastic cords 5 and 6 are connected to both ends of the tip edge 32 of the eaves-shaped surface portion 31, and the both end portions are locked to a part of the surface layer 4 as described later. It is a thing. The rubber strings 5 and 6 may be made of a non-stretchable string material, or may be provided with an adjusting tool capable of adjusting the length.

By the way, as shown in FIG. 2, in the mask main body 1, the base layer 3 and the surface layer 4 are composed of different filter layers, which are sewn together to be integrated. In terms of morphology, the base layer 3 mainly uses a flexible material such as gauze knitted with polyester yarn, and the surface layer 4 is a material such as a nylon mesh material that stabilizes the shape (shape stabilizing material). Is mainly used. The gauze material of the base layer 3 is for good touch, and a cooling sensation material may be used in addition to the gauze material. As the cooling sensation material, a contact cooling sensation material, a moisture-absorbing quick-drying material, or the like can be used. On the other hand, as the shape stabilizing material, a mesh structural material made of nylon is used, but in the present embodiment, two mesh structural materials having a relatively large mesh opening length (1.5 mm to 2.0 mm) are laminated. This is because the stabilization of the shape is prioritized, and therefore, the mirror surface layer 4 in this case does not have a function as a part of the filter in the mask.

The base layer 3 and the surface layer 4 are sewn in a state where the central portion near the upper end and the central portion near the lower end are squeezed in order to have a three-dimensional shape. Further, the eave-shaped planar portion 31 is provided on the base layer 3 so that it can easily come into contact with the user's face together with the base layer 3.

As described above, the mask main body 1 is sewn because the individually provided base layer 3 and the surface layer 4 are integrated by sewing the lower end edge and the left and right end edges. In this state, a simple bag shape is formed. This state is shown in FIG.

3A is a perspective view of the mask main body 1, and FIG. 3B is a cross-sectional view taken along the line IIIB-IIIB. As shown in this figure, the unsewn portion between the base layer 3 and the surface layer 4 can easily form a gap, and the unsewn end of the upper end edge of the mask body 1. The edge (non-sewn region) becomes the opening 11, and a hollow portion can be formed between the two 3 and 4. The above-mentioned interpolation filter 2 can be inserted into this hollow portion. Further, the eave-shaped planar portion 31 is in a state of protruding from the upper end edge of the mask main body 1 (base layer 3) in the shape of an eave, and a resin or metal wire member 33 is formed inside the band-shaped portion of the tip edge 32. Is arranged so as to be built in while being covered. The wire member 33 has a small elastic force and can be easily deformed into an arbitrary shape (according to the undulations of the face) by being plastically deformed.

As described above, the strip-shaped portion formed on the tip edge 32 of the planar portion 31 has a predetermined strength due to the laminated fabric for covering the wire member 33. Both ends 32a and 32b of the tip edge 32 are locked in the vicinity of the upper ends 41a and 42a of the left and right side portions 41 and 42 of the surface layer 4, and are further connected to the upper ends 51 and 61 of the rubber cords 5 and 6 for ear hooking. Is to be done. In the present embodiment, in order to lock both ends 32a and 32b of the strip-shaped portion by the surface layer 4, the side portions 41 and 42 of the surface layer 4 are covered with a patch for sewing the both side portions 41 and 42. The tip is folded back to form a through hole through which both ends 32a and 32b of the band-shaped portion are inserted. By inserting both ends 32a and 2b of the strip-shaped portion into the folded portion, the locking position is not fixed, and the locking position can be adjusted while being able to be locked. The upper ends 51 and 61 of the rubber cords 5 and 6 are sewn to both ends 32a and 32b of the strip-shaped portion, and the other lower ends 52 and 62 are connected by sewing to the lower ends 41b and 42b of both side portions of the surface layer. Is to be done.

As described above, both ends 32a and 32b of the band-shaped portion formed on the tip edge 32 of the planar portion 31 are connected to the rubber cords 5 and 6 for ear hooks, so that the rubber cords 5 and 6 mask the mask. 1 can be drawn to the user's face. As a result, the wearing state of the mask 1 is stabilized, and the strip-shaped portion of the planar portion 31 is intensively pulled by pulling the vicinity of the upper ends 51 and 61 of the rubber cords 5 and 6 while the mask is worn. This makes it possible to bring the band-shaped portion into close contact with the undulations around the nose.

By the way, although the base layer 3 is made of a gauze material that is soft to the touch, it may be made of a single material or may be made by laminating a plurality of filters. That is, as shown in FIG. 4, the sheet material 34 of the gauze material (or the cooling sensation material, etc.) is arranged on the innermost side (face side) in contact with the user's face, and a different material is placed on the outer side (surface layer side). The filter 35 may be used. Further, another filter 36 may be provided between the two 34 and 35.

For example, in the present embodiment, the outermost (surface layer side) filter 35 is a deodorizing filter using a cloth made of rayon fiber mixed with a water-soluble zwitterionic polymer, and is laminated inside. As the filter 36 to be used, one made of thick cotton can be used as appropriate. In the case of such a laminating method, suffocation is reduced by appropriately providing thick cotton in the middle. The wall thickness of cotton is 10 mm or less, and by being laminated in the middle, it is compressed to a wall thickness of about 5 mm, but the presence of the hollow layer made of cotton makes it possible to breathe easily even at about 5 mm. Further, since the deodorant filter 35 laminated on the outside thereof is composed of rayon fibers mixed with a water-soluble zwitterionic polymer, the moisture and saliva contained in the exhaled breath discharged into the cotton are removed. It can absorb droplets and suppress the generation of odor.

Further, as shown in the figure, two cushioning members 37a and 37b may be arranged between the innermost sheet material 34 and the cotton filter 36. An elastic material is used for the cushioning members 37a and 37b, and the cushioning members 37a and 37b can be made of cotton, sponge, or the like. The cushioning members 37a and 37b are provided at positions on both sides of the user's nose, and elastically deform and eliminate gaps that are likely to occur on both sides of the nose during use. The cushioning members 37a and 37b can be fixed to the inside by simultaneously sewing the upper end edges when sewing these filters and sheet materials 34 to 36. After such sewing, the edge of the eaves-shaped surface portion 31 is sewn.

Next, the interpolation filter 2 will be described in detail. As shown in FIG. 5, a plurality of filters 21 to 25 are laminated in the interpolation filter 2. These filters 21 to 25 are cut into the same shape, and are integrated by suturing the periphery in a laminated state. Of these filters 21 to 25, the filter 21 on the outermost layer (surface layer side) is an antistatic filter. This antistatic filter is made by weaving carbon threads made of conductive carbon on the surface of a cloth made of polyester fibers, and is woven in a grid pattern at intervals of about 2 mm in the vertical and horizontal directions. By weaving the carbon yarn in this way, the electric charge charged on the polyester fiber is discharged, and the suction / adsorption of fine particles and viruses due to static electricity is prevented. That is, instead of adsorbing a virus or the like on the filter to remove it, the attached virus or the like is not retained on the filter. The invasion of the virus is eliminated by the polyester-based cloth used as the cloth. That is, the fabric of the antistatic filter 21 has a fine mesh shape with an opening length of about 20 nm. Such a fine mesh-like fabric suppresses the invasion of fine particles and viruses, and has an antistatic function so as not to stay on the surface of the filter 21. This prevents the mask itself from becoming unsanitary.

Further, the interpolation filter 2 can be laminated with other filters 22 to 25. For example, by stacking the insect repellent filter 22, it is possible to protect against the approach of flying insects. As the insect repellent filter 22, a cotton cloth impregnated with a toluamide-based composite compound can be used. Since the toluamide-based complex compound has a repellent effect against flying insects (particularly mosquitoes), it is possible to control the approach of mosquitoes by fastening it to a cotton cloth. Further, as the second deodorizing filter 23, one to which granular activated carbon is attached may be laminated, or the antibacterial filter 24 may be laminated.

The antibacterial filter 24 includes a cotton mesh filter on which a substance having virus inactivity is supported. Examples of the substance include a substance selected from one or more of platinum iodide, palladium iodide, silver iodide, copper iodide and copper thiocyanate. In addition, there is also a fiber structure impregnated with a solution in which 2-hydroxy-1,3,5-triazine sodium, sodium diaminobenzenesulfonate and didecyldimethylammonium chloride coexist (Patent No. 1). 4832573). By using these materials, the virus in contact with the substance used can be inactivated, and the growth of fungi can be suppressed or the killing of fungi can be promoted.

Further, by providing the auxiliary filter 25 made of a non-woven fabric on the innermost side, the plurality of filters 22 to 24 described above can be configured to be sandwiched between the antistatic filter 21 on the surface. The presence of the auxiliary filter 25 made of this non-woven fabric can protect the filters 22 to 24 sandwiched in the middle. That is, it prevents the function from being deteriorated by rubbing the surface.

In addition to the various filters 21 to 25 constituting the interpolation filter 2 as described above, a filter made of polyester fiber may be added as a filter having a smaller opening length. This is of the same quality as that used as the fabric of the antistatic filter 21, but by adding such a fine mesh filter, it is possible to give a load to breathing. Putting a load on the breathing means training the respiratory muscles other than the diaphragm. In natural breathing, it is due to the action of the diaphragm and intercostal muscles, but in the case of suffocation, the sternocleidomastoid muscle, rectus abdominis muscle or scalene muscle may also be used to train these muscles. can. By strengthening these muscles, the respiratory movement is improved, and the effect of suppressing the onset of sleep apnea syndrome can be expected. Furthermore, by giving a load to breathing, a training effect similar to that of hypoxic exercise can be obtained, and a diet effect by promoting metabolism of the body can also be expected. In this application, a mask having a structure that makes it difficult to breathe and gives a load to breathing is referred to as a respiratory load type mask in the present application.

Next, a second embodiment of the present invention relating to the mask will be described. 6 and 7 are views showing a state in which the base layer and the surface layer of the present embodiment are separated, FIG. 6 shows a state of a perspective view from the outside (surface side) of the mask body, and FIG. 7 shows a state of a perspective view from the mask body. It shows the state of squint from the inside (back side) of.

As shown in these figures, the mask main body 101 of the present embodiment has the same basic configuration as that of the first embodiment, and is composed of a base layer 103 and a surface layer 104. Although details will be described later, the base layer 103 and the surface layer 104 are integrated by being sewn while forming a non-sewn region. Therefore, in the present embodiment, the eaves-shaped planar portion (first planar portion) 108 is provided on the surface layer 104 instead of the base layer 103. At the upper edge 143 of the surface layer 104, it is sewn together with the members constituting the surface layer 104 and is integrally provided. Further, a similar eaves-shaped planar portion (second planar portion) 109 is also provided on the lower edge 144 of the surface layer 104.

The above-mentioned planar portions 108 and 109 are each provided with edge portions 181,191, and both end portions thereof are formed on the upper ends 141a and 142a and the lower ends 141b and 142b of the left and right end portions of the surface layer 104. It can be inserted into the provided annular portion, and by this insertion, it is in a state of being locked by the offering portion. Further, the end edge portions 181,191 are both band-shaped, but further have a hollow tubular shape, and the mounting string (expandable string) 105, 106 can be inserted into the hollow. .. The mounting strings 105 and 106 in the drawing are not inserted through the end edge portion 181 of the first planar portion 108, but are inserted through the end edge portion 191 of the second planar member 109. It shows the state. Further, although the reference numerals in the figure are shown separately from 105 and 106 (assuming that they are divided into left and right), one string that is continuous as a whole is used. Further, the mounting strings 105 and 106 used here have a length through which the end edge portions 181, 191 can be inserted, and have elasticity such as a rubber string. Adjustment tools 150 and 160 are provided for adjusting the change in length in the above.

The base layer 103 has basically the same structure as the base layer 3 in the first embodiment, except that a planar member is not provided. However, in the present embodiment, a shape stabilizing material made of nylon mesh fabric is used for the outermost layer 130. This is because the eaves-shaped planar portions (first and second) 108 and 109 are provided on the surface layer 104, so that the shape of the surface layer 104 may change depending on the mounting state, and the shape of the entire mask. It is provided in the base layer 103 in order to stabilize the surface layer 103. Since the shape stabilizing material is provided in the base layer 103, another material can be used for the outermost layer 140 of the surface layer 104. As an example, it can be made of the same material as the antistatic filter 21 described above.

In the mask main body 101 of the present embodiment, similarly to the first embodiment, the base layer 103 and the surface layer 104 sew the lower end edge and the left and right both end edges (the upper end edge is opened as a non-sewn area). , Is integrated as a whole. This state is shown in FIGS. 8 and 9.

8 (a) is a perspective view of the mask main body 101, FIG. 8 (b) is a sectional view taken along line VIIIB-VIIIB, and FIG. 8 is a sectional view taken along line VIIIB-VIIIB when attached. As shown in this figure, the non-sewn upper edge (non-sewn area) functions as the opening 111, and the hollow portion formed between the base layer 103 and the surface layer 104 is interpolated as described above. Filter 2 can be inserted. Further, the end edge portion 181 of the first planar portion 108 is provided with a wire member 183 along the longitudinal direction thereof. The wire member 183 is made of resin (polyethylene) or metal that can be easily plastically deformed (the elastic force is relatively small), and one or a plurality of strips are bonded to the side surface. There is. For adhesion, the wire member 183 is covered with a resin film or cloth and sewn to the edge portion 181 so that the wire member 183 is not exposed on the surface. Since the mounting strings 105 and 106 are inserted into the end edge portion 181 as described above, they are adhered to the side surface so as not to interfere with the mounting strings 105 and 106, but the wire member 183 is inserted into the end edge portion 181. If possible, it may be provided inside the edge portion 181. By providing this type of wire member 183, the user's face surface is deformed according to the undulations so that the edge portion 181 can be brought into close contact with the face (particularly around the nose) (see FIG. 9). This close contact state becomes effective due to the elasticity (restoring force) of the mounting strings 105 and 106, in addition to matching the shape of the undulations.

On the other hand, the end edge portion 191 of the second planar portion 109 is not provided with a wire member. This is because the planar member 109 is attached so as to cover the periphery of the jaw, and when the mouth (mandible) is operated in conversation or the like, its shape and position constantly change, so that the shape is fixed by the wire member. Due to the difficulty of conversion. Therefore, instead of this wire member, the material of the end edge portion 191 is made of a flexible material, so that the end edge portion 191 can be freely deformed by the elastic mounting strings 105 and 106 inserted inside. While doing so, the adhesion is improved (see FIG. 9). Resin wires 145, 146 for stabilizing the shape may be inserted into the upper and lower ends 143, 144 of the surface layer 104 along the edges.

As shown in FIG. 9, the first planar portion 108 is provided on the surface layer 104 as described above and is in close contact with the face when worn, so that the first planar portion 108 is formed in a non-sewn region. The opening 111 is closed by the planar portion 108. Therefore, the interpolation filter 102 inserted through the opening 111 of the mask main body 1 is maintained in a state of being stably inserted inside when the mask is used.

Further, the interpolation filter 102 used here is the same as the interpolation filter 102 in the first embodiment, and filters made of a material having an appropriate function are selectively laminated. These filters having a specific function may be laminated together on the interpolation filter, but when a filter having a specific function is used to form the base layer 103 or the surface layer 104, the interpolation filter is used. The filter having the function can be excluded from the above.

As described above, in the present embodiment, the first planar member 108 and the second planar member 109 can improve the adhesion of both the upper and lower ends of the mask to the face, and thus the specific substance ( The invasion of substances to be excluded) can be effectively suppressed. Furthermore, as described above, when a filter made of polyester fiber as a filter having a small opening length is added to the insertion filter 2 to make a respiratory load type mask, the intrusion route of the outside air is further restricted. This will increase the load applied during breathing. In particular, it is possible to change the close contact state by adjusting the tensile force of the mounting strings (expandable strings) 105 and 106, so it is expected for the purpose of obtaining the same training effect as hypoxic exercise. It is also possible to perform training after adjusting the close contact state according to the effect.

Next, an embodiment relating to the mask case will be described. FIG. 10 is a diagram showing an outline of the present embodiment. As shown in this figure, in the mask case 7, the bottom surface portions 71 and 72 are bifurcated, and an erected top portion 73 is provided in the center of both 71 and 72, which is omitted as a whole. It has a shape with a triangular prism turned sideways. Each part 71 to 73 is composed of one or several pieces of fabric sewn together, and the inside of each part 71 to 73 is hollow. This fabric is made of nylon or polyester mesh material and is made of breathable material.

Then, on the way from one bottom surface portion 72 to the top portion 73, an eaves-shaped end edge portion 76 cut in the front-rear direction (the direction of the generatrix of the triangular prism) is provided, and the opening is provided by the eaves-shaped end edge portion 76. 74 is formed. The eaves-shaped edge 76 is formed in an arc shape according to the shape of the top 73, and the fabric continuous from the bottom surface 72 to the top 73 has the edge 75 between the eaves and the eaves 76. The opening 74 can be closed by laminating an appropriate range of the edge portion 75 inside the eaves-shaped edge portion 76.

In the mask case 7 configured in this way, as shown in FIG. 11, the opening 74 is greatly opened by pulling out the edge portion 75 reaching the top 73 from the bottom 72 from the top 73. be. By inserting the mask A through the opening 74, the mask A is accommodated inside. At this time, by turning the surface side Aa of the mask A upward (toward the side of the top portion 73), one of the left and right end edges Ab and Ac of the mask A can be penetrated through the opening 74.

Then, as shown in FIG. 12, inside the mask case 7 (see FIG. 12A) having a hollow inside having a substantially triangular cross section, the left and right edges Ab and Ac of the mask A are bifurcated, respectively. It is arranged inside the bottom surface portions 71 and 72, and can accommodate the mask A with the surface side Aa facing upward.

Since the bottom surface portions 71 and 72 and the top portion 73 of the mask case 7 basically have the same shape, the left and right end edges Ab and Ac of the mask A are one of the bottom surface portions 71. And the top 73 can be accommodated so as to be in contact with the top 73. The housing state of the mask A may be appropriately changed by a method that facilitates the user to insert the mask A into the inside of the case 7.

The mask case 7 having the above configuration can be further formed as shown in FIG. That is, since the opening 74 is formed between the edge portion 75 of the fabric reaching from the bottom surface portion 72 to the top portion 73 and the eaves-shaped end edge portion 76 hanging from the top portion 73, both of them are combined. A fastener 77 (see FIG. 13 (a)) or a hook-and-loop fastener 78 (see FIG. 13 (b)) for close contact is provided. The fastener 77 or the hook-and-loop fastener 78 allows the opening 74 to be closed. By closing the opening 74 in this way, it is possible to prevent the mask stored inside from inadvertently popping out of the case 7, which is most effective in washing. That is, when washing the mask, the washing machine is used in a state of being stored in the case 7 in order to prevent the mask from losing its shape. The case 7 itself is a relatively flexible material through which liquids and gases can easily pass through, but the degree of shape loss when washing the mask in the case is compared to when the mask is washed by a washing machine. In addition, the mask can be stably stored in the case during the washing.

The embodiments of the present invention are as described above, but these embodiments show an example of the present invention, and the present invention is not limited to the above-described embodiments. That is, these embodiments can be changed as appropriate. For example, the mask A of the above-described embodiment shows a mask body 1 and an interpolation filter 2, but the two 1 and 2 may be integrated rather than separated. Further, the mask main body 1 of the above embodiment is composed of a base layer 3 and a surface layer 4, respectively, and a configuration in which filters are laminated has been described. However, in the first embodiment, at least shape stabilization by a nylon mesh has been described. Anything may be used as long as it constitutes the mask body 1 having a bag-like structure in which the material is the outermost layer and the gauze material is the innermost layer. Further, in the second embodiment, the shape stabilizing material made of nylon mesh is provided as the outermost layer of the base layer 103, but as long as the shape of the entire mask is stable, the outermost layer does not need to come out. good.

Further, a resin wire member may be provided on the left and right end edges Ab and Ac of the mask A (particularly, the left and right end edges of the base layer 3). Since the left and right edges of the mask A are portions that come into contact with the vicinity of the cheeks of the user, the occurrence of gaps can be suppressed by stabilizing the shape of the edges. Further, a similar wire member may be provided at the edge of the upper end (base end where the planar portion 31 is provided) of the base layer 3. With such a configuration, when the mask A is attached, the peripheral edge of the mask A (particularly the base layer 3) comes into contact with the user's face without a gap, and the suction of outside air from the portion that does not pass through the filter is suppressed. Can be done.

Further, various filters constituting the interpolation filter 2 can be appropriately changed, and as described above, in the case of a configuration in which the deodorizing filter 35 is not laminated on the mask body 1, the interpolation filter 2 is configured. The deodorant filter 35 can be laminated on the filter to be used. Further, in the case of the respiratory load type mask, the cotton 36 laminated on the base layer 3 may not be laminated, and the eaves-shaped planar portion 31 and the cushioning members 37a and 37b are not essential members and may be omitted as appropriate. can do.

Further, in the first embodiment of the mask, the planar member 31 is provided on the base layer 3, but it may be provided on the surface layer 4 as shown in the second embodiment. On the other hand, in the second embodiment, both the first planar member 108 and the second planar member 109 are provided on the surface layer 104, but one or both of them are provided on the base layer 103. It is also good.

1,101 Mask body 2,102 Interpolation filter 3,103 Base layer 4,104 Surface layer 5,6,105,106 Elastic cord 7 Mask case 11,111 Mask body opening 21 Antistatic filter 22 Insect repellent Filter 23 Second deodorant filter 24 Antibacterial filter 25 Auxiliary filter (nonwoven fabric filter)
31,108,109 Eaves-shaped planar portion 32,181,191 Tip edge (end edge portion) of the planar portion
32a, 32b, 182a, 182b, 192a, 192b Both ends of the strip-shaped part of the planar part (both ends of the end edge part)
33,183 Wire member 34 Innermost layer sheet material (sheet material such as gauze material)
35 Deodorizing filter 36 Cotton 37a, 37b Cushioning member 41, 42 Left and right sides 41a, 42a, 141a, 142a of the surface layer Upper ends 41b, 42b, 141b, 142b of left and right sides 51, 61 of rubber cord Upper end 52, 62 Lower end of elastic cord 71, 72 Bottom of mask case 73 Top of mask case 74 Opening of mask case 75 Edge of mask case 76 Masked edge of mask case 77 Fastener 78 Face fastener 130 Outermost layer of base layer 140 Outermost layer of surface layer 143 Upper edge of surface layer 144 Lower edge of surface layer 145,146 Resin wire 150,160 Attaching string length adjuster A Mask Aa Mask surface side Ab, Left and right edges of the Ac mask

Claims (17)

A mask made by laminating multiple filters, at least an antistatic filter in which carbon threads are woven into a cloth made of polyester fibers, an insect repellent filter impregnated with a toluamide-based composite compound, and a water-soluble zwitterion. A mask characterized by being laminated with a deodorant filter mixed with an ionic polymer. The main body is partially sewn with a base layer laminated on the innermost side and a surface layer made of a mesh-like nylon mesh fabric laminated on the outermost side while forming a non-sewn area. The mask according to claim 1, wherein a filter component composed of a plurality of filters is arranged between the base layer and the surface layer. The main body is partially sewn while the base layer laminated on the innermost side and the surface layer made of mesh-like nylon mesh fabric laminated on the outermost side form a non-sewn area.
The first aspect of the present invention, wherein any of the plurality of filters is laminated on the base layer or the surface layer, and the filter component of the remaining filters is arranged between the base layer and the surface layer. mask of. A main body portion in which a base layer arranged on the inside and a surface layer arranged on the outside are partially sewn while forming a non-sewn region, and a filter that can be taken in and out of the main body portion from the non-sewn region. Equipped with components,
The filter component comprises one or more filters selected from a filter impregnated with an insect repellent and a deodorant filter mixed with a water-soluble zwitterionic polymer. The component is arranged between the base layer and the surface layer, and one of the base layer and the surface layer has an eaves-like planar portion formed on the upper edge. The tip edge of the planar portion is provided with an end edge portion that is continuous in the left-right direction, and both ends of the end edge portion are locked to the left and right sides of the base layer or the surface layer, and an elastic cord for mounting is provided. A mask characterized by being inserted into the edge portion . A main body portion in which a base layer arranged on the inside and a surface layer arranged on the outside are partially sewn while forming a non-sewn region, and a filter that can be taken in and out of the main body portion from the non-sewn region. Equipped with components,
The base is composed of two base material filters, one or more filters selected from a filter impregnated with an insect repellent and a deodorant filter mixed with a water-soluble zwitterionic polymer. Arranged in the middle of the layers, either the base layer or the surface layer has an eaves-shaped planar portion formed on the upper end edge, and is continuous in the left-right direction on the tip edge of the planar portion. An end edge portion is provided, and both ends of the end edge portion are locked to the left and right sides of the base layer or the surface layer, and an elastic cord for mounting is inserted into the end edge portion. mask. In the main body portion, the base layer and the surface layer are sewn at the lower end edge and the left and right end edges to form an opening at the upper end edge, and the filter component can be freely taken in and out from the opening. The mask according to any one of claims 2 to 5. The mask according to claim 6, wherein the filter component that is freely taken in and out of the opening is formed of a laminated body in which a plurality of filters are laminated and integrated by sewing. The mask according to any one of claims 2 to 7, wherein the base layer is composed of two base material filters, and the deodorant filter is arranged in the middle of the two base material filters. The mask according to claim 8, wherein a cotton having an appropriate thickness is laminated on the inner layer of the deodorant filter. The main body is partially sewn with a base layer laminated on the innermost side and a surface layer made of a mesh-like nylon mesh fabric laminated on the outermost side while forming a non-sewn area, at least. , An antistatic filter in which carbon yarn is woven into a cloth made of polyester fiber, an insect repellent filter impregnated with a toluamide-based composite compound, and a deodorant filter in which a water-soluble amphoteric ionic polymer is mixed are laminated. The filter component is a mask that is placed between the base layer and the surface layer, and either the base layer or the surface layer is in the shape of a string on the upper edge. A planar portion is formed, and the tip edge of the planar portion is provided with a continuous edge portion in the left-right direction, and both ends of the edge portion are locked to the left and right sides of the base layer or the surface layer. And a mask that is connected to the string member for mounting. The main body is partially sewn with a base layer laminated on the innermost side and a surface layer made of a mesh-like nylon mesh fabric laminated on the outermost side while forming a non-sewn area, at least. , An antistatic filter in which carbon yarn is woven into a cloth made of polyester fiber, an insect repellent filter impregnated with a toluamide-based composite compound, and a deodorant filter in which a water-soluble amphoteric ionic polymer is mixed are laminated. The filter component is a mask that is placed between the base layer and the surface layer, and either the base layer or the surface layer is in the shape of a string on the upper edge. A planar portion is formed, and the tip edge of the planar portion is provided with a continuous edge portion in the left-right direction, and both ends of the edge portion are locked to the left and right sides of the base layer or the surface layer. , A mask in which an elastic cord for mounting is inserted in the end edge portion. The mask according to claim 11, wherein a long wire member made of a plastically deformable material is provided along the edge portion of the surface portion on the inside or the surface thereof. The main body is partially sewn with a base layer laminated on the innermost side and a surface layer made of a mesh-like nylon mesh fabric laminated on the outermost side while forming a non-sewn area, at least. , An antistatic filter in which carbon yarn is woven into a cloth made of polyester fiber, an insect repellent filter impregnated with a toluamide-based composite compound, and a deodorant filter in which a water-soluble amphoteric ionic polymer is mixed are laminated. The filter component is a mask that is placed between the base layer and the surface layer, and either the base layer or the surface layer is in the shape of a hood on the lower edge. The second planar portion is formed, and the tip edge of the second planar portion is provided with a second edge portion that is continuous in the left-right direction, and both ends of the second edge portion are described above. A mask that is locked to the left and right sides of a base layer or a surface layer, and an elastic cord for attachment is inserted through the second end edge portion. The mask according to any one of claims 2 to 13, wherein the upper part of the base layer is provided with a cushioning member having elastic force at two places having appropriate intervals. The mask according to any one of claims 1 to 14, wherein one or more of the above filters, or individual filters different from these, have a fine mesh structure having an opening length of 60 nm or less. A respiratory load type mask characterized by being composed of. A mask case for accommodating the mask according to any one of claims 1 to 15, comprising a bifurcated bottom surface portion and a top portion erected in the center thereof, and the top portion is provided from one of the bottom surface portions. A mask case characterized in that an open end edge is provided in a portion leading to the portion to open the mask, and an eaves-shaped end edge portion covering the open end edge is formed from the top. The mask case according to claim 16, wherein the open end edge and the eaves-shaped end edge portion are configured to be freely closed by a fastener or a hook-and-loop fastener.

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