JP7321706B2 - 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 Literature 1 includes a mask body that covers the nose and mouth, a water-containing body that contains water, and a heating element such as a warmer that is in close contact with the water-containing body. By heating the water-containing body with a heating element, warm steam is generated, which humidifies the space between the mask and the face and replenishes the oral cavity with moisture, preventing the oral cavity from drying out.

JP-A-2000-225205

However, in the mask of Patent Literature 1, since the warmer is directly attached to the water-containing body, the moisture of the water-containing body permeates the warmer, possibly lowering the heating temperature of the warmer.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, and to provide a mask that prevents the moisture of a hydrous body from penetrating into a heating element such as a hand warmer for heating the hydrous body.

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, a water-containing body containing water, and a heating element for heating the water-containing body, wherein the mask body comprises a cover part covering a part of the face of the wearer, and the cover part. a bag-like containing portion provided on a face-side surface of the portion to contain the water-containing body, wherein the heating element is attached to a surface of the containing portion on the cover portion side. do.

In the mask of the present invention, the water-containing body preferably has a size that covers the heat-generating portion of the heating element.

Further, in the mask of the present invention, it is preferable that the mask has the same outer shape as the heat generating portion of the heat generating element and has the same size as the heat generating portion of the heat generating element.

Moreover, in the mask of the present invention, it is preferable that the accommodation portion is attached to the cover portion at a position below the upper edge of the cover portion.

Further, in the mask of the present invention, the accommodating portion includes at least a first layer on the face side between which the water-containing body is inserted and a second layer on the covering portion side, and the first layer has moisture permeability. and the second layer is preferably impermeable to moisture.

According to the present invention, when the mask is worn, the water-containing body containing water is continuously heated by the heating element to generate warm steam for a long period of time, thereby humidifying the space between the mask body and the wearer's face. be. Therefore, since the oral cavity is replenished with water, drying of the oral cavity can be prevented for a long time. Here, while the water containing body is housed in the housing portion, the heating element is attached to the cover portion side surface of the housing portion, and the housing portion is interposed between the water containing body and the heat generating body. Therefore, the water content of the water-containing body is suppressed from permeating through the accommodating portion, so that it is possible to prevent the water content of the water-containing body from permeating into the heating element for heating the water-containing body. As a result, it is possible to prevent a decrease in the heat generation temperature of the heating element, effectively heat the water-containing body by the heating element, and generate good steam.

In addition, since the heating element is attached to the surface of the housing on the cover side, that is, the surface of the housing on the side opposite to the face, the heating element does not directly hit the wearer's face when the mask is worn. It is possible to prevent the wearer from getting burned on the face or feeling uncomfortable.

It is (A) a front view of the mask of this embodiment, and (B) is a rear view. It is an exploded perspective view of a mask of this embodiment. 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 to 3 show the mask 1 of this embodiment. The mask 1 includes a mask body 2 that covers a part of the wearer's face (the area under the eyes, especially the nose and mouth) when worn, a water-containing body 3 containing water, and a heating element 4 for heating the water-containing body 3. Prepare. 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. The hydrated body 3 is housed in the housing portion 6 of the mask body 2 while being heated by the heating element 4 . 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 4, 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 first layer 60 is The removed portion is joined to the second layer 61 . 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 first layer 60 of the housing portion 6 is located below the upper edge of the second layer 61, 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 second layer 61 on the cover portion 5 side to the face-side surface of the cover portion 5 by a known method such as sewing, ultrasonic welding, or heat sealing. It is In this embodiment, only the upper edge of the second layer 61 located above the upper edge of the first layer 60 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.

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) is attached to the cover part 5 in a downwardly displaced position.

The size of the accommodating portion 6 may be any size as long as the water-containing body 3 can be placed inside and the heating element 4 can be attached to the outer surface. and the longitudinal length can be 30 mm or more and 80 mm or less.

In this embodiment, the lower edge of the accommodation portion 6 protrudes below the lower edge 51 of the cover portion 5 . Since the cover part 5 of this embodiment can be stretched in the vertical direction by the pleats 5, the lower edge 51 of the cover part 5 covers the lower edge of the storage part 6 when stretched, and the storage part 6 is not exposed. The whole is in contact with the wearer's face within the cover part 5. - 特許庁

The first layer 60 on the face side of the housing portion 6 can be configured using a moisture-permeable sheet such as a woven fabric or a nonwoven fabric, and among these, a nonwoven fabric can be preferably used. As the nonwoven fabric, for example, a nonwoven fabric produced by a spunbond method, a thermal bond method, a spunlace method, or the like can be used. Non-woven fabrics can be used particularly preferably. As the fibrous material of the woven fabric and non-woven fabric constituting the storage part 6, known materials can be used, for example, natural fibers such as paper and cotton; semi-synthetic fibers such as rayon and acetate; polypropylene, polyethylene, polyester, and nylon. Synthetic fibers such as can be used. Among them, polypropylene and polyethylene are preferably used from the viewpoint of flexibility and productivity. From the viewpoint of flexibility, the first layer 60 is preferably formed by stacking two sheets.

The second layer 61 on the cover portion side of the housing portion 6 can be configured using a moisture-impermeable sheet. As the moisture-impermeable sheet, a sheet obtained by laminating a moisture-impermeable resin film on the moisture-permeable sheet used for the first layer 60 can be used.

Although the resin used for the resin film described above is not particularly limited, it is preferable to use a thermoplastic resin. Examples of thermoplastic resins include polyethylene, polypropylene, polyester, polyamide, polyurethane, polystyrene, polyvinyl alcohol, polyvinyl chloride, polyvinylidene chloride, polycarbonate, ethylene-vinyl acetate copolymer, and the like. , polypropylene, and ethylene-vinyl acetate copolymer can be preferably exemplified. These resins may be used alone or in combination of two or more.

In addition, the moisture permeability of ^the first layer 60 of the housing portion 6 is a property that allows steam (water molecules) to pass through. It is more preferably m ² /24h or more, and even more preferably 3000 g/m ² /24h or more. Further, the moisture impermeability of the second layer 61 of the housing portion 6 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.

Next, as shown in FIGS. 1 to 5, the water-containing body 3 is impregnated with a water-retaining liquid containing water as a main component. By being heated by 4, steam is released to humidify the space between the mask body 2 and the face and supply moisture to the oral cavity.

The amount of water-retaining liquid (impregnated amount) contained in the water-containing body 3 is not particularly limited, but is preferably 6 g or more so that sufficient steam can be supplied to the oral cavity for a long time such as when sleeping. It is more preferably 12 g or more. From the viewpoint of the effect of the weight of the water-containing body 3 upon use on the feeling of use, the impregnated amount of the water-containing body 3 is preferably 18 g or less, more preferably 15 g or less.

Moreover, in order to retain such an amount of water-retentive liquid, the basis weight of the water-containing body 3 is preferably 200 g/m ² or more, more preferably 300 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 1000 g/m ² or less, more preferably 600 g/m ² or less.

In this embodiment, the water-containing body 3 has a rectangular shape in a plan view, and is rounded by chamfering four corners. The outer shape of the water-containing body 3 is the same as the outer shape of the heat generating portion 44 of the heat generating body 4, and the two have shapes corresponding to each other. That is, if the outer shape of the heating element 4 is circular or elliptical, the outer shape of the water containing body 3 is also circular or elliptical, and if the outer shape of the heating element 4 is polygonal, the outer shape of the water containing body 3 is also polygonal. However, they do not have to have exactly the same shape, and slight differences in shape, such as whether the corners are chamfered or not, are included in the same shape.

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.

In addition, the water-containing body 3 has a size to cover the heat-generating portion 44 of the heat-generating body 4 in relation to the heat-generating body 4 . That is, in plan view, the outer edge contour of the heat generating portion 44 of the heat generating element 4 is fitted inside the outer edge contour of the water containing body 3, and the heat generating portion 44 of the heat generating body 4 does not protrude around the water containing body 3. It's like Note that "the water-containing body 3 covers the heat-generating portion 44 of the heat-generating body 4" is not limited to the case where the heat-generating portion 44 of the heat-generating body 4 described above does not completely protrude around the water-containing body 3. A slight (for example, 10 mm) protrusion is allowed. The water-containing body 3 is formed to have the same size as the heating portion 44 of the heating element 4 or to have a size larger than the heating portion 44 of the heating element 4, but is formed to have the same size as the heating portion 44 of the heating element 4. is preferred.

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 to extend vertically in the region between the upper edge and the lower edge of the water containing body 3, but it extends upward from the lower edge of the water containing body 3. , or may be formed to extend downward from the upper edge of the water-containing body 3, or extend downward and upward from the upper and lower edges of the water-containing body 3, respectively. 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 or 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. Examples of 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 mixed 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

Next, as shown in FIGS. 2 to 4, the heating element 4 includes a heat generating material 40 and a storage bag 41 in which the heat generating material 40 is enclosed. As the heating element 4, for example, a stick type disposable body warmer can be suitably used. The heating element 4 is attached to the surface of the housing portion 6 of the mask body 2 on the cover portion 5 side using an adhesive layer (not shown) provided on one surface of the storage bag 41 .

As the heat generating material 40, in this embodiment, a heat generating composition that generates heat upon contact with air is used. The exothermic composition may be one that generates heat upon contact with air, and includes, for example, oxidizable metals, activated carbon, water retention agents (wood flour, vermiculite, diatomaceous earth, perlite, silica gel, alumina, water absorbent resin, etc.). , a metal salt (salt, etc.) and water in appropriate amounts, and a known composition that has been conventionally used in disposable body warmers can be used. Oxidizable metals are metals that generate oxidation reaction heat, and include, for example, powders and fibers of one or more selected from iron, aluminum, zinc, manganese, magnesium, and calcium. Among them, iron powder is preferable from the viewpoints of handleability, safety, manufacturing cost, storage stability and stability. Examples of the iron powder include one or more selected from reduced iron powder and atomized iron powder.

Note that the heat-generating material 40 may be a material other than a material that generates heat when it comes into contact with air. good too.

The storage bag 41 has a surface layer and a back layer whose outer edges are joined over the entire circumference, and has a space for encapsulating the heat generating material 40 between the surface layer and the back layer. In this embodiment, the first sheet 42 and the second sheet 43, which are two sheets of the same shape, constitute the surface layer and the back layer. The heat-generating material 40 can be enclosed in a bag-like shape by bonding with an adhesive agent or by heat-sealing. The heat generating portion 44 of the heat generating body 4 is the portion where the heat generating material 40 of the storage bag 41 is enclosed, that is, the portion excluding the portion where the sheets 42 and 43 on the outer periphery are joined together.

The outer shape of the heating element 4 is not particularly limited, but as described above, the heat generating portion 44 has an outer shape corresponding to the outer shape of the water-containing body 3 . The size of the heating element 4 is not particularly limited, but is set to a size that allows the heating portion 44 to be covered with the water-containing body 3 as described above.

Although the material of the two sheets 42 and 43 of the storage bag 41 is not particularly limited, it is preferable to use a resin film in consideration of strength and durability against heat generation of the heat generating material 40 . Although the resin used for the resin film is not particularly limited, it is preferable to use a thermoplastic resin. Examples of thermoplastic resins include polyethylene, polypropylene, polyester, polyamide, polyurethane, polystyrene, polyvinyl alcohol, polyvinyl chloride, polyvinylidene chloride, polycarbonate, ethylene-vinyl acetate copolymer, etc. Among them, polyethylene. , polypropylene, and ethylene-vinyl acetate copolymer can be preferably exemplified. These resins may be used alone or in combination of two or more.

Moreover, the two sheets 42 and 43 of the storage bag 41 may be configured by a laminate obtained by laminating a breathable woven or nonwoven fabric on a resin film. In this case, the resin film is arranged on the inner side facing the heat generating material 40, and the woven or non-woven fabric is arranged on the outer side.

Fiber materials for woven or non-woven fabrics include natural fibers such as cotton, hemp, silk, and paper; semi-synthetic fibers such as rayon and acetate; nylon, vinylon, polyester, acrylic, polyethylene, polypropylene, polyvinyl chloride, and polybutylene terephthalate. synthetic fibers such as; and mixed fibers of these fibers. Among them, from the viewpoint of providing a good feel to the touch, examples of fiber materials include nylon, polyester, polypropylene, and the like, and more preferably nylon and polyester. These fibrous materials may be used alone or in combination of two or more. The basis weight of the woven fabric or non-woven fabric is not particularly limited as long as it can prevent the exothermic material 40 from leaking out of the storage bag 3, but is preferably about 20 g/m ² or more and 70 g/m ² or less.

The thickness of the two sheets 42 and 43 of the storage bag 41 is not particularly limited, but the smaller the thickness, the softer the storage bag 41 can be. is preferably about 0.1 mm or more and 2.0 mm or less.

Of the two sheets 42 and 43 of the storage bag 41, the first sheet 42 on the side of the cover portion 5 has air permeability, and the first sheet 42 on the side to be attached to the opposite storage portion 6 (adhesive layer 44 side) is air permeable. The second sheet 43 may be breathable or non-breathable, but is preferably non-breathable.

The resin film used for the breathable first sheet 42 is a porous resin film or a resin film in which a plurality of perforations (not shown) are formed with needles in order to ensure breathability. The air communicates between the inside and outside of the storage bag 41 through the holes and touches the heat generating material 40 to generate heat. The holes may be formed in the entire area of the resin film or may be formed in a part of the resin film. Moreover, the size of the hole is not particularly limited as long as it is large enough to prevent the heat generating material 40 from leaking out of the storage bag 41 . The shape and number of the holes are not particularly limited either, and the size, shape and number of the holes are appropriately set in consideration of the temperature of the heating element 4 during use according to the air permeability of the storage bag 41 . On the other hand, the resin film used for the second impermeable sheet 43 is a non-permeable resin film that is neither porous nor perforated (not shown).

It should be noted that the impermeability of the storage bag 41 is not limited to being completely impervious to air. It means that it does not have the above-mentioned perforations or pores originally formed in the material itself), and for example, even if the resin film itself is slightly breathable, it is included in non-breathable.

An adhesive layer (not shown) is provided on the surface of the non-breathable second sheet 43 . This adhesive layer is formed by applying an acrylic adhesive, a urethane adhesive, a silicone adhesive, a rubber adhesive, rosin, or the like to the surface of the second sheet 43 . The amount of the adhesive to be applied is not particularly limited as long as the heating element 4 can be continuously attached to the storage section 6 for a long period of time, such as during sleep. The adhesive layer is covered with a release sheet (not shown) until the heating element 4 is used. The release sheet can be formed by, for example, laminating paper, polyethylene terephthalate, polyethylene, or the like singly or in combination, and applying silicon processing to the side covering the adhesive layer.

According to the mask 1 of the present embodiment described above, the water-containing body 3 containing water when worn is continuously heated by the heating element 4, thereby generating warm steam for a long period of time. Moisturizes between the face. Therefore, since the oral cavity is replenished with water, drying of the oral cavity can be prevented for a long time. Here, while the water containing body 3 is housed in the housing portion 6 of the mask body 2, the heating element 4 is attached to the surface of the housing portion 6 on the cover portion 5 side, and the water containing body 3 and the heat generating body 4 are attached. A housing portion 6 is interposed between them. Therefore, the water content of the water containing body 3 is prevented from permeating in the storage portion 6 , so that the water content of the water containing body 3 can be prevented from permeating the heating element 4 that heats the water containing body 3 . As a result, it is possible to prevent a decrease in the heat generation temperature of the heating element 4, effectively heat the water-containing body 3, and favorably generate steam.

Further, according to the mask 1 of the present embodiment, the heating element 4 is attached to the surface of the housing portion 6 of the mask body 2 on the cover portion 5 side, that is, the surface of the housing portion 6 opposite to the face. Therefore, the heating element 4 does not directly hit the wearer's face when the mask 1 is worn. Therefore, when wearing the mask 1, the wearer does not get burned on the face or feel uncomfortable.

Moreover, according to the mask 1 of the present embodiment, the water-containing body 3 has a size that covers the heat-generating portion 44 of the heat-generating body 4 . If the size of the heating element 4 is large, the heating part 44 of the heating element 4 may wrap around the water-containing body 3 and hit the wearer's face when the mask 1 is worn. By covering the heat-generating part 44, it is possible to reliably prevent the heat-generating body 4 from hitting the wearer's face.

Further, according to the mask 1 of the present embodiment, the water containing body 3 has the same outer shape as the heat generating portion 44 of the heat generating body 4 and has the same size as the heat generating portion of the heat generating body. , the entire area of the water containing body 3 is uniformly heated all over by the heat generating portion 44 of the heat generating body 4 . Therefore, the water containing body 3 is easily warmed, and warm steam can be efficiently generated from the water containing body 3 .

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.

In addition, 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 on the cover portion 5 side has moisture impermeability. The warm steam emitted from the 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 on the side opposite to the wearer's face 61 serves as a barrier to prevent steam 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.

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 housing portion 6 is attached to the cover portion 5 at a position below the upper edge 50 of the cover portion 5. may have been

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 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.

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 main body 3 hydrated body 4 heat generating element 5 cover part 6 housing part 45 heat generating part of heat generating body 50 upper edge of cover part 60 first layer of housing part 61 second layer of housing part

Claims (5)

A mask body, a hydrous body containing water, and a heating element for heating the hydrous body,
The mask body includes a covering portion that covers a part of the wearer's face, and an accommodating portion that accommodates the water-containing body and is a separate member from the covering portion,
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 heating element includes a heat generating material and a storage bag containing the heat generating material,
The housing part is formed in a bag shape having an opening at the top, and is attached to the face-side surface of the cover part,
The heating element is attached to the outer surface of the housing portion and the surface on the cover portion side ,
The mask , wherein the second layer includes a moisture-impermeable resin film . 2. The mask according to claim 1, wherein said water-containing body has a size that covers a heat-generating portion of said heating element. 3. The mask according to claim 2, wherein the water containing body has the same outer shape as the heat generating portion of the heat generating element and has the same size as the heat generating portion of the heat generating element. 4. The mask according to any one of claims 1 to 3, wherein said accommodating portion is attached to said cover portion at a position below an upper edge of said cover portion. 5. The mask according to any one of claims 1 to 4, wherein said first layer has moisture permeability.