JP7334039B2 - mask - Google Patents

Description

The present invention relates to face masks, and more particularly to vaping masks.

BACKGROUND ART Conventionally, masks have been widely used as a protective measure against fine dust such as pollen and yellow sand, and as a measure against infections such as viruses and bacteria. Recently, the functions of masks have diversified, and various masks have been proposed. For example, during sleep, since there is no swallowing of food, drink, saliva, etc., the oral cavity tends to become dry. In addition, the air is generally dry in winter, and even outside of winter, air conditioners are operating in offices throughout the year. Therefore, there are many environments where the air tends to dry even during the day, and the oral cavity tends to dry out.

In order to prevent this, Patent Document 1, for example, discloses a mask having a humidifying function. The mask of Patent Document 1 contains a water-containing body containing water in a bag-shaped mask body made of silicon in which a large number of through holes are formed, and the mask is held in a state where the filter containing water is heated. Being housed in the main body generates warm steam, which humidifies the space between the mask and the face, replenishing moisture to the oral cavity, and prevents the oral cavity from drying out.

JP 2015-20044 A

However, in the mask of Patent Literature 1, warm steam generated from the heated water-containing body is simply released from the mask main body toward the face. Therefore, if the released steam escapes to the outside through the gap between the mask body and the face, there is a problem that the humidifying effect is not sufficient.

SUMMARY OF THE INVENTION An object of the present invention is to provide a mask capable of improving the humidification effect.

The present invention relates to a mask that is worn on the face and emits vapor. The mask of the present invention comprises a mask body and a water-containing body containing water, the mask body comprising a cover portion covering a portion of the wearer's face, and the cover portion for containing the heated water-containing body. and a bag-like storage portion provided on the face-side surface of the portion, wherein the storage portion includes at least a first layer on the face side and a second layer on the cover portion side between which the water-containing body is inserted. The first layer is moisture-permeable, and a vapor retention layer capable of retaining vapor is provided on the face-side surface of the first layer.

In the mask of the present invention, the second layer is preferably impermeable to moisture.

In the mask of the present invention, the first layer and the second layer preferably have heat insulating properties.

Moreover, in the mask of the present invention, it is preferable that the water-containing body is heated by being irradiated with microwaves.

According to the present invention, when the mask is worn, warm steam is generated from the heated water-containing body, thereby moistening the space between the mask body and the wearer's face. Therefore, since the oral cavity is replenished with water, drying of the oral cavity can be prevented.

In addition, since the vapor retention layer capable of retaining steam is provided on the face side surface of the first layer on the face side of the housing portion, the steam generated from the water-containing body in the housing portion permeates through the first layer by the vapor retention layer. A portion of the generated vapor is retained. Therefore, since the vapor retention layer increases the humidity between the mask body and the wearer's face when the mask is worn, the humidification effect is improved, and the space between the mask body and the wearer's face is effectively humidified. be able to.

It is (A) a front view of the mask of this embodiment, and (B) is a rear view. 2 is a schematic cross-sectional view taken along line X1-X1 of FIG. 1; FIG. It is (A) a rear view, (B) a front view, and (C) an X2-X2 schematic cross-sectional view of an accommodating portion. It is (A) a front view of a water-containing body, (B) is a side view.

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 and 2 show a mask 1 of this embodiment. The mask 1 comprises a mask body 2 covering part of the wearer's face (the area under the eyes, especially the nose and mouth) and a water containing body 3 containing water. The mask main body 2 includes a covering portion 5 that partially covers the wearer's face when worn, and a bag-like containing portion 6 that is provided on the surface of the covering portion 5 on the face side. After the water-containing body 3 is housed in the housing portion 6 of the mask body 2, it is heated by being irradiated with microwaves, for example, in a microwave oven. As a result, warm steam is emitted from the water containing body 3 when the mask 1 is worn.

The cover portion 5 has a rectangular shape in plan view in this embodiment. When the mask 1 is worn, the covering portion 5 includes an upper edge 50 that extends laterally below the eyes of the wearer's face, a lower edge 51 that extends laterally under the mandible (or below the chin), an upper edge 50 and a lower edge 51. and left and right side edges 52, 53 connecting the . The size of the covering portion 5 is not particularly limited, and may be any size as long as the left and right side edges 52 and 53 extend across the cheeks and partially cover the nose, mouth, lower jaw, and cheeks of the face.

Moreover, in this embodiment, the cover portion 5 is flat before the mask 1 is worn (when not in use). That is, the structure of the covering portion 5 of the present embodiment is different from that of the three-dimensional type covering portion. Specifically, the side edges of the two mask pieces are joined by heat-sealing or the like, and the two mask pieces are folded by a folding portion extending vertically in the center of the horizontal direction when not in use, Even if the two mask pieces are unfolded, they do not become flat, and when worn on the face, it is different from the structure that forms a large space under the nose (nostrils) and the mouth. When attached to the face, it adheres to the surface of the face more than the three-dimensional type cover.

The cover part 5 can have a single layer structure or a laminated structure of two or more layers, and each layer can be configured using a sheet having air permeability such as woven fabric or nonwoven fabric. Among them, nonwoven fabrics by a spunbond method, a meltblown method, a thermal bond method or a spunlace method can be preferably used. From the viewpoint of cutting performance, a nonwoven fabric produced by the melt blown method can be used. In consideration of the above points, a preferred layer structure of the cover portion 5 is, for example, an SMS layer (three-layer structure of spunbond-meltblown-spunbond). In addition, an S layer (single layer of spunbond) or an SS layer (two-layer structure of spunbond-spunbond) can be preferably mentioned. When the cover portion 5 has a laminated structure, the cover portion 5 is formed by joining the outer peripheral edges of the sheets of each layer with a predetermined width by a known method such as sewing, ultrasonic welding, or heat sealing. be able to.

As the fiber material of the woven fabric and non-woven fabric that constitute each layer of the cover part 5, known materials can be used, for example, natural fibers such as paper and cotton; semi-synthetic fibers such as rayon and acetate; polypropylene, polyethylene and polyester; , synthetic fibers such as nylon can be used. Among these, polypropylene and polyethylene can be preferably used from the viewpoint of productivity, polypropylene can be used from the viewpoint of shape retention, and nylon can be used from the viewpoint of touch.

The cover part 5 has a structure that can be extended in the longitudinal direction. For example, the covering part 5 is provided with at least one pleat (fold) 54 formed by at least two laterally extending folds. By widening the pleats 54, the cover part 5 can be stretched in the vertical direction, and the size of the cover part 5 can be freely adjusted according to the size of the wearer's face.

Ear bands 7 are attached to the left and right side edges 52 and 53 of the cover 5 as holding means for holding the cover 5 on the wearer's face. The ear band 7 can be attached to the covering portion 5 by a known method such as sewing, ultrasonic welding, or heat sealing. The material of the ear band 7 is not particularly limited, but a stretchable material such as polyester is preferable. Various means other than the ear band 7 may be used as the holding means for the cover portion 5 .

A linear nosepiece 8 made of a plastic resin such as polyethylene or a biodegradable resin is provided at a position inside the upper edge 50 of the cover portion 5 . The nosepiece 8 prevents a gap from being formed between the wearer's nose and the covering part 5, so that the covering part 5 can be fitted to the face. The nose piece 8 can be fixed at a predetermined position by, for example, being incorporated in the cover portion 5 and joining the sheets of each layer constituting the cover portion 5 at the upper and lower positions thereof by, for example, ultrasonic welding.

Next, as shown in FIGS. 1 to 3, the housing portion 6 has a first layer 60 on the face side and a second layer 61 on the cover portion 5 side, and the upper edge of the outer peripheral edge of the second layer 61 is The removed portion is joined to the first layer 60 . As a result, the containing portion 6 is formed into a bag-like shape having an opening formed in the upper portion thereof and capable of inserting and holding the water-containing body 3 between the first layer 60 and the second layer 61 . In the present embodiment, the upper edge of the second layer 61 of the housing portion 6 is located below the upper edge of the first layer 60, making it easier to insert the water-containing body 3 into the housing portion 6 through the upper opening. ing.

The housing portion 6 is attached to the cover portion 5 by joining the face-side first layer 60 to the face-side surface of the cover portion 5 by a known method such as sewing, ultrasonic welding, or heat sealing. there is In the present embodiment, only the upper edge of the first layer 60 positioned above the upper edge of the second layer 61 is joined to the face-side surface of the cover part 5 . As a result, when the pleats 54 are widened, the accommodating portion 6 does not become an obstacle when the covering portion 5 is extended in the vertical direction. Since the water containing body 3 can be easily brought close to the wearer's face, the steam emitted from the water containing body 3 can be efficiently supplied to the nose and mouth.

In addition, since the upper edge of the face-side first layer 60 is joined to the face-side surface of the cover portion 5, when the mask 1 is worn, the upper opening of the accommodation portion 6 and the face of the wearer A first layer 60 is interposed. As a result, even if the warm steam emitted from the water-containing body 3 in the housing portion 6 is released from the upper opening of the housing portion 6, it is not released toward the wearer's face until after passing through the first layer 60. It can prevent steam from hitting the wearer's face directly.

The housing portion 6 is attached to the cover portion 5 at a position below the upper edge 50 of the cover portion 5 in this embodiment. The upper edge 50 of the covering portion 5 extends laterally under the eyes of the wearer's face when the mask 1 is worn. The nose is covered with the water-containing body 3 inside. When the nose is covered with the water-containing body 3, it becomes difficult to breathe through the nose, and the water-containing body 3 hits the nose, which may reduce the wearing comfort of the mask 1. - 特許庁Therefore, in the present embodiment, the accommodation portion 6 is at a predetermined height (for example, 15 mm or more) than the upper edge 50 of the cover portion 5 so that the accommodation body 6 is arranged under the wearer's nose when the mask 1 is worn. 30 mm or less) is attached to the cover portion 5 at a position shifted downward.

The size of the accommodating portion 6 may be any size as long as the water-containing body 3 can be accommodated therein. For example, the horizontal length can be 50 mm or more and 150 mm or less, and the vertical length can be 30 mm. 80 mm or less.

The first layer 60 on the face side of the housing portion 6 has moisture permeability. The moisture permeability is a property of allowing steam (water molecules) to pass through. For example, the moisture permeability is preferably 1000 g/m ² /24h or more, more preferably 2000 g/m ² /24h or more. Preferably, it is more preferably 3000 g/m ² /24h or more. As a result, the warm steam emitted from the water-containing body 3 in the housing portion 6 permeates the first layer 60 and is released toward the wearer's face. On the other hand, the second layer 61 on the cover portion 5 side of the housing portion 6 is impermeable to moisture. The moisture impermeability is not limited to the property of completely impermeable to steam (water molecules), but also includes the property of slightly permeating steam (water molecules). For example, the moisture permeability is preferably 350 g/m ² /24h or less, more preferably 300 g/m ² /24h or less. The warm steam emitted from the water-containing body 3 in the storage part 6 is not released on the side opposite to the wearer's face because the non-moisture-permeable second layer 61 acts as a barrier. In this way, by making the first layer 60 of the housing part 6 moisture-permeable and the second layer 61 moisture-impermeable, the warm steam emitted from the water-containing body 3 can be supplied only to the wearer's face, and the efficiency is improved. It can be well moisturized.

Moreover, both the first layer 60 and the second layer 61 of the housing portion 6 have heat insulation properties. The storage unit 6 stores the water containing body 3 after being heated by being irradiated with microwaves in a microwave oven or the like. less time to occur. Therefore, in the present embodiment, the first layer 60 and the second layer 61 of the storage section 6 are made heat insulating, thereby preventing the temperature of the heated water-containing body 3 in the storage section 6 from dropping rapidly. As a result, the time during which warm steam is emitted from the water-containing body 3 can be extended.

The first layer 60 of the storage section 6 having moisture permeability and heat insulation is made of, for example, a foamed resin sheet made of foamed polyurethane, foamed polyolefin, foamed polyvinyl chloride (PVC), or sheet-like fiber cotton. Can be configured. Fibers constituting the fiber cotton include polyester fibers, polyolefin fibers, polyamide fibers, acrylonitrile fibers, and the like.

The second layer 61 of the housing portion 6, which has heat insulating properties and is impermeable to moisture, is formed by, for example, covering the foamed resin sheet or sheet-like fiber cotton used for the first layer 60 described above with an impermeable material. can be configured using

In the present embodiment, the housing portion 6 is provided with a vapor retention layer 62 capable of retaining vapor on the face-side surface of the face-side first layer 60 . This vapor retaining layer 62 allows a part of the vapor emitted from the water-containing body 3 in the housing part 6 and permeating the first layer 60 to permeate as it is and release it to the wearer's face side, and retains a part of it. Thus, the humidity between the mask body 2 and the wearer's face is increased when the mask 1 is worn. As a result, the humidification effect is improved, and the space between the mask main body 2 and the wearer's face can be effectively humidified.

The vapor retention layer 62 can be configured using a sheet-like fiber having air permeability such as woven fabric or non-woven fabric, and among these, non-woven fabric can be preferably used. As the nonwoven fabric, nonwoven fabrics produced by a spunbond method, a thermal bond method, a spunlace method, or the like can be used. can be used particularly preferably. As the fibrous material of the woven fabric and non-woven fabric constituting the vapor retention layer 62, hydrophobic fibers can be preferably used from the viewpoint of preventing wetting and stickiness. For example, synthetic fibers such as polypropylene, polyethylene, and polyester can be used. can be done. Among them, polypropylene and polyethylene are preferably used from the viewpoint of flexibility and productivity. From the viewpoint of the vapor retention function and flexibility, the vapor retention layer 62 is preferably formed by laminating a plurality of (two in this embodiment) sheet-like fibers (for example, non-woven fabric).

Next, the water-containing body 3 is impregnated with a water-retaining liquid containing water as a main component, and can be heated by being irradiated with microwaves in, for example, a microwave oven to generate steam. As shown in FIGS. 1 to 4, the water-containing body 3 emits steam by being stored in the storage portion 6 of the mask body 2 in a heated state when the mask 1 is worn, and spreads between the mask body 2 and the face. Humidify and supply moisture to the oral cavity.

Although the water-containing body 3 is not particularly limited, it preferably contains a large amount of water-retaining liquid. It is more preferably 16 g or more, and more preferably 16 g or more. In addition, from the viewpoint of the effect of the weight of the water-containing body 3 in use on the feeling of use, the impregnated amount of the water-containing body 3 is preferably 30 g or less, more preferably 24 g or less, and 20 g or less. is more preferred. Since the water-containing body 3 contains a large amount of water-retaining liquid, it is possible to supply a large amount of steam to the oral cavity, and the water-containing body 3 becomes difficult to cool down after being heated. temperature can be maintained for a long time. In this way, when the mask 1 is worn, the water-containing body 3 can be kept warm for a long time, so warm steam can be generated for a long time, and a good feeling of use can be obtained.

Moreover, in order to retain such an amount of water-retaining liquid, the basis weight of the water-containing body 3 is preferably 500 g/m ² or more, more preferably 800 g/m ² or more. On the other hand, if the basis weight is too large, the water-containing body 3 becomes hard, so that the water-containing body 3 does not deform so as to follow the facial shape of the wearer's mouth when wearing the mask 1, and the wearer may feel uncomfortable. . Therefore, the basis weight of the water-containing body 3 is preferably 1500 g/m ² or less, more preferably 1000 g/m ² or less.

The hydrated body 3 has a rectangular shape in plan view in this embodiment. Since the hydrated body 3 is used near the wearer's mouth when wearing the mask 1, the size thereof is preferably 4 cm or more and 14 cm or less in the horizontal direction and 2 cm or more and 7 cm or less in the vertical direction. It is more preferably 7 cm or more and 11 cm or less, and 3 cm or more and 6 cm or less in the vertical direction. The area is, for example, preferably 8 cm ² or more and 98 cm ² or less, more preferably 25 cm ² or more and 50 cm ² or less.

Since the water containing body 3 covers the mouth of the wearer when the mask 1 is worn, the water containing body 3 is formed with a vent hole 30 so that the water containing body 3 does not interfere with breathing through the wearer's mouth. This facilitates breathing through the wearer's mouth when wearing the mask 1 . The vent hole 30 may be composed of a plurality of small-diameter holes, or may be composed of one or more notches. It is preferably composed of As a result, the water containing body 3 can be easily bent along the ventilation hole 30 at the central position in the left-right direction. In order to impregnate the water-containing body 3 with a large amount of water, it is necessary to increase the basis weight of the water-containing body 3 as described above. Since 3 does not conform to the facial shape of the wearer's mouth, the wearer may feel uncomfortable. However, if the water containing body 3 is easily bent at the central position in the left-right direction by the vent hole 30, the water containing body 3 conforms to the facial shape of the wearer's mouth when the mask 1 is worn, even if the weight of the water containing body 3 is large. The wearer does not feel uncomfortable because the shape is deformed by force.

In this embodiment, the vent hole 30 is formed so as to extend upward from the lower edge of the water containing body 3, but it may be formed so as to extend downward from the upper edge of the water containing body 3. However, it may be formed so as to extend downward and upward from the upper edge and lower edge of the water containing body 3, respectively, or extend vertically to the region between the upper edge and the lower edge of the water containing body 3. It may be formed in the following manner.

The water-containing body 3 can be made of various fiber materials, and can be made of hydrophilic fibers or blended fibers of hydrophilic fibers and synthetic fibers. Examples of fibrous materials include polyethylene, polypropylene, polyester, rayon, cotton, pulp, etc. Pulp is preferable from the viewpoint of flexibility and water retention. Although the method for producing such a water-containing body 3 is not particularly limited, it can be produced by an air-laid method or the like. It is preferable to blend the wearable fibers in a predetermined ratio.

For example, when the water-containing body 3 is made of pulp, the ratio of pulp to heat-fusible fiber is 60:40 to 80:20. The water-containing body 3 may have a single-layer structure or a multi-layer structure, but from the viewpoint of durability and water retention, it preferably has a three-layer structure in which a fibrous material is sandwiched between a pair of nonwoven fabrics. At this time, a layer sandwiched between a pair of nonwoven fabrics is called an intermediate layer, and a layer made of a pair of nonwoven fabrics is called both end layers. The nonwoven fabrics of both end layers may be made of the same material or may be made of different materials. Materials for these nonwoven fabrics include hydrophilic fibers, hydrophobic fibers, synthetic fibers, and blended fibers of hydrophilic and synthetic fibers. Examples of hydrophilic fibers include rayon and cotton. Rayon is preferred. Making the pulp hydrophilic makes it easier for the pulp to absorb water during production, which has the advantage of facilitating production. Hydrophobic fibers include polyesters such as polyethylene, polypropylene and polyethylene terephthalate, preferably polyethylene and polypropylene. Hydrophobicity has the advantage of preventing wetting and stickiness. Therefore, it is preferable that the surface facing the wearer is made of hydrophobic fibers and the opposite side is made of hydrophilic fibers such as rayon. It is preferable that the above-described pair of nonwoven fabrics have a basis weight of, for example, 20 g/m ² or more and 50 g/m ^{2 or} less.

The water-retaining liquid with which the water-containing body 3 is impregnated may be water only, or may contain water as a main component and may be blended with a polyol. Polyols include glycerin, dipropylene glycol, 1,3-butylene glycol, propylene glycol, sorbitol, 1,2 pentanediol, 1,2-hexanediol, etc. Among them, glycerin is preferred from the viewpoint of safety. . In addition to these, preservatives such as methylparaben and phenoxyethanol, moisturizing agents such as hyaluronic acid and betaine, plant extracts, xanthan gum, hydroxypropylmethylcellulose (HPMC), hydroxyethylcellulose (HEC), hydroxypropylcellulose (HPC), and agar. , guar gum, carrageenan and other water-soluble thickeners, eucalyptus and mint flavors, and surfactants that solubilize flavors (nonionic surfactants, amphoteric surfactants, anionic surfactants), etc. can be used as appropriate. . Before the mask 1 is put on, that is, before the hydrated body 3 is housed in the housing portion 6, it is housed in a bag made of an impermeable aluminum laminate film, an aluminum-deposited PET film, or a transparent (silica)-deposited PET film. It is preferable to keep

According to the mask 1 of the present embodiment described above, warm steam is generated from the heated water-containing body 3 after being irradiated with microwaves, for example, in a microwave oven. is humidified between Therefore, since the oral cavity is replenished with water, it is possible to prevent the oral cavity from drying out. In addition, since the water-containing body 3 is stored in the storage portion 6 of the mask body 2 in a heated state, it immediately emits steam immediately after the mask 1 is put on, and it does not take time for the steam to be generated. A sufficient amount of steam can be supplied immediately after wearing the mask 1 .

Further, according to the mask 1 of the present embodiment, since the vapor retaining layer 62 capable of retaining vapor is provided on the face-side surface of the first layer 60 on the face side of the housing portion 6, the vapor retaining layer 62 A part of the steam emitted from the water-containing body 3 in the storage section 6 and permeating the first layer 60 is retained. Therefore, the vapor retention layer 62 increases the humidity between the mask body 2 and the wearer's face when the mask 1 is worn, thereby improving the humidification effect and increasing the humidity between the mask body 2 and the wearer's face. can be effectively humidified.

Further, according to the mask 1 of the present embodiment, the first layer 60 on the face side of the housing portion 6 has moisture permeability, and the second layer 61 on the cover portion 5 side has moisture impermeability. The warm steam emitted from the inner water-containing body 3 passes through the moisture-permeable first layer 60 and is released to the wearer's face side, but the moisture-impermeable second layer 60 is released on the side opposite to the wearer's face. The layer 61 acts as a barrier to prevent vapor from being emitted. Therefore, the warm steam emitted from the water-containing body 3 can be supplied only to the wearer's face side, so that humidification can be performed efficiently.

In addition, according to the mask 1 of the present embodiment, since the first layer 60 and the second layer 61 of the containing portion 6 have heat insulating properties, the temperature of the heated water-containing body 3 in the containing portion 6 rises rapidly. can be prevented from declining to Therefore, warm steam can be generated from the water-containing body 3 for a longer time.

Further, according to the mask 1 of the present embodiment, the upper edge of the first layer 60 on the face side of the housing portion 6 is positioned above the upper edge of the second layer 61 on the cover portion 5 side, and the upper edge of the cover portion 5 is Since it is joined to the face-side surface, the first layer 60 is interposed between the upper opening of the housing portion 6 and the wearer's face when the mask 1 is worn. Therefore, even if the warm steam emitted from the water-containing body 3 in the containing portion 6 is released from the upper opening of the containing portion 6, it will not be released toward the wearer's face until after passing through the first layer 60. can be prevented from hitting the wearer's face directly.

Moreover, according to the mask 1 of the present embodiment, the housing portion 6 is attached to the cover portion 5 at a position below the upper edge 50 of the cover portion 5 . Therefore, when the mask 1 is put on, the container 6 is placed under the wearer's nose, so that the nose is not covered with the water-containing body 3, and the wearer can easily breathe through the nose. The feeling of wearing the mask 1 is not deteriorated when the hydrated body 3 hits the nose.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications are possible without departing from the gist of the present invention.

For example, in the above-described embodiment, the water-containing body 3 is heated by being irradiated with microwaves after being housed in the housing portion 6 of the mask body 2. It may be housed in the housing portion 6 .

In the above embodiment, the water-containing body 3 is heated by being irradiated with microwaves, for example, in a microwave oven. However, the method of heating the water-containing body 3 is not particularly limited, and various methods may be used. good.

In the above embodiment, both the first layer 60 and the second layer 61 of the housing portion 6 have heat insulation properties, but only one of them may have heat insulation properties. It does not have to be thermally insulating.

In the above-described embodiment, the first layer 60 of the housing portion 6 is moisture-permeable and the second layer 61 is impermeable, but both layers may be moisture-permeable.

Further, in the above-described embodiment, the housing portion 6 is attached to the cover portion 5 at a position below the upper edge 50 of the cover portion 5 , but the housing portion 6 is attached to the cover portion 5 at a position of the upper edge 50 of the cover portion 5 . may be attached.

In the above embodiment, the upper edge of the first layer 60 on the face side of the housing portion 6 is positioned above the upper edge of the second layer 61 on the cover portion 5 side and joined to the cover portion 5 . The upper edge of the second layer 61 on the cover portion 5 side may be positioned above the upper edge of the first layer 60 on the face side and joined to the cover portion 5 .

Further, in the above embodiment, the water-containing body 3 is formed with the vent holes 30, but the vent holes 30 are not necessarily formed.

In the above-described embodiment, the upper edge 50, the lower edge 51, and the left and right side edges 52, 53 of the cover portion 5 are formed linearly. Alternatively, the lower edge 51 may be formed in a curved line shape, and/or the lower edge 51 may be formed in a bent line or curved line shape that is convex toward the lower side, and/or the left and right side edges 52, 53 may be formed in the shape of a bent line or curved line that is convex toward the inside.

In the above-described embodiment, since the housing portion 6 covers the mouth of the wearer when wearing the mask 1, the housing portion 6 is provided with a vent hole so that the breathing through the wearer's mouth is not hindered by the housing portion 6. good too.

In the above-described embodiment, the water-containing body 3 has a rectangular shape in plan view, but may have various shapes such as triangular, square, polygonal, circular, and elliptical shapes.

Further, in the above-described embodiment, the covering portion 5 has a rectangular shape in plan view, but may have various shapes such as a triangular shape, a square shape, other polygonal shapes, a circular shape, and an elliptical shape.

In the above-described embodiment, the cover portion 5 has a structure that can be stretched in the vertical direction by the pleats 54, but the means for making the cover portion 5 stretchable in the vertical direction is not limited to the pleats 54, but other means. For example, by forming gathers in the cover portion 5, the cover portion 5 may have a structure that can be extended in the vertical direction. It should be noted that the means or structure that enables the covering portion 5 to be stretched, such as the pleats 54 , may not be provided on the covering portion 5 .

Moreover, in the above-described embodiment, the cover portion 5 is of the flat type, but it may be of the three-dimensional type.

REFERENCE SIGNS LIST 1 mask 2 mask body 3 water containing body 5 cover 6 container 50 upper edge of cover 60 first layer of container 61 second layer of container 62 vapor retention layer of container

Claims (4)

Equipped with a mask body and a hydrous body containing water,
The mask body includes a cover part that covers a part of the wearer's face, and a bag-like storage part provided on the face side surface of the cover part for storing the heated water-containing body,
The housing portion includes at least a first layer on the face side and a second layer on the cover portion side between which the water-containing body is inserted,
The first layer has moisture permeability,
A vapor retention layer capable of retaining vapor is provided on the face side surface of the first layer ,
The mask , wherein the vapor retention layer is constructed using sheet-like fibers made of hydrophobic fibers . 2. The mask of claim 1, wherein said second layer is moisture impermeable. 3. The mask according to claim 1, wherein said first layer and said second layer have heat insulating properties. 4. The mask according to any one of claims 1 to 3, wherein said hydrous body is heated by being irradiated with microwaves.

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