JP2023125997A - Mask, mask package, and mask manufacturing method - Google Patents

Abstract

To provide a technology capable of preventing a mask from being attached erroneously.SOLUTION: A mask comprises: a mask body that has a length along the vertical direction and a length along a width direction to cover a wearer's mouth; ear strings provided at both ends in the width direction of the mask body; and a shape keeping member provided on the mask body's upper side, the shape keeping member extending in the width direction. The shape keeping member has a shape in which the center in the width direction protrudes toward the opposite side of the wearer's face more than both ends in the width direction.SELECTED DRAWING: Figure 1

Description

The present invention relates to a mask, a mask package, and a method for manufacturing a mask.

In recent years, disposable masks in which ear straps or the like are attached to the mask body have been known (Patent Document 1). Masks are used to prevent infectious diseases and hay fever by covering the wearer's mouth and nose.

JP 2020-2483 Publication

Generally, a mask has front and back sheets of the same color. For this reason, the mask has a problem in that it is difficult to distinguish between the front and back sides. If the mask is incorrectly worn with the front and back reversed, there is a risk that it will no longer perform its designed function. Alternatively, there is a possibility that the feeling of wearing the mask may deteriorate.

An object of the present invention is to provide a technique that can prevent incorrect wearing of a mask.

In order to solve the above problems, the mask according to the present invention is configured such that the shape maintaining member has a convex shape on the side opposite to the wearer's face.

Specifically, the mask according to the present invention has a length along the vertical direction and a length along the width direction, and includes a mask body that covers the wearer's mouth, and a mask body that is provided at both ends of the mask body in the width direction. a shape-maintaining member provided on the upper side of the mask main body and extending in the width direction, the shape-maintaining member having a shape-maintaining member that extends in the width direction from both end portions in the width direction. The center portion in the width direction has a shape convex on the side opposite to the wearer's face.

The mask main body has a skin sheet disposed on the skin side of the wearer, and an outer sheet disposed on the opposite side of the skin side of the skin sheet, and the skin sheet and , the outer sheets may be different sheets from each other.

In the skin sheet, the diameter of the inscribed circle between the fibers may be 80 μm or less.

The skin sheet may have higher rigidity than the outer sheet.

The skin sheet may have higher transparency than the outer sheet.

Further, the present invention can be viewed from the side of a mask package. For example, the present invention provides a mask package comprising the mask and a storage section for storing the mask,
The shape maintaining member of the mask stored in the storage portion may be a mask package having a substantially linear shape.

The storage section may include a retrieval section for the mask.

Further, the present invention can be viewed from the aspect of a mask manufacturing method. For example, the present invention provides a method for manufacturing a mask, which includes a mask body having a length along the vertical direction and a length along the width direction, and covering the wearer's mouth, and both ends of the mask body in the width direction. and an attaching step of attaching a shape-retaining member to the upper side of the mask body so as to extend in the width direction, and in the attaching step, the ear straps are wound into a roll. The continuous body of the shape-retaining member is cut out for one mask, and the shape-retaining member is stretched to such an extent that the central portion becomes convex, so that the convexity of the shape-retaining member faces the opposite side from the wearer's face. Furthermore, the method for manufacturing a mask may include attaching the shape maintaining member to the mask body.

According to the present invention, it is possible to prevent incorrect wearing of a mask.

FIG. 1 is an external perspective view of a mask according to an embodiment. FIG. 2 is a diagram showing the laminated structure of the mask main body portion according to the embodiment. FIG. 3 is a diagram showing the mask with the pleats spread out. FIG. 4 is a side view of the mask according to the embodiment viewed from above. FIG. 5 shows an example of a partially enlarged view of the skin sheet of the mask according to the embodiment. FIG. 6 is a diagram illustrating the relationship between the fibers of the nonwoven fabric of the skin sheet and the embossing. FIG. 7 is an example of an image taken using an electron microscope of the nonwoven fabric of the skin sheet. FIG. 8 is an external view of the mask package according to the embodiment. FIG. 8 is a diagram illustrating a method for taking out a mask from a mask package according to an embodiment. FIG. 10 illustrates an outline of a mask extracted from a mask package according to an embodiment. FIG. 11 is a flowchart showing an overview of the mask manufacturing method according to the embodiment.

EMBODIMENT OF THE INVENTION Below, the mask based on embodiment of this invention is demonstrated with reference to drawings. Note that the configurations of the following embodiments are illustrative, and the present invention is not limited to the configurations of these embodiments.

FIG. 1 is an external perspective view of a mask according to an embodiment. As shown in FIG. 1, the mask 1 includes a mask body 2, ear straps 3, 4, side parts 5, 6, and a nose fitter 7 (an example of a "shape maintaining member" in the present application). The mask body 2 is made of a substantially rectangular sheet-like breathable material, and has a size that can cover the wearer's mouth and nose. The mask main body 2 has a length along the up-down direction and a length along the width direction. Here, the top and bottom of the mask body 2 correspond to the top and bottom of the wearer when the mask 1 is worn, and the width direction of the mask body 2 corresponds to the left and right direction of the wearer. In addition, when the mask 1 is worn, the side facing the wearer's skin (inside when worn) is the skin side, and the side opposite to the skin side (outside when worn) is the non-skin side.

The ear straps 3 and 4 are made of a string-like elastic material, and their ends are joined at side parts 5 and 6 located at both ends of the mask body 2 in the width direction, so that the ear straps 3 and 4 can be attached to the left and right sides of the mask body 2. Form annular rings on both sides.

The mask body 2 is composed of various sheets such as breathable nonwoven fabric, and is a laminate of a plurality of members. The plurality of sheets are appropriately joined to each other at the upper, lower, left, and right edges. The mask body 2 has folds in the width direction that can form a pleated three-dimensional shape. The shape of such a fold is maintained by the side parts 5 and 6 by joining the left and right ends of the mask main body 2 in a folded state. That is, the pleats of the mask body 2 are prevented from unfolding at the sides 5 and 6 of the left and right ends, and the folds are unfolded in the area near the center of the mask body 2 when the mask 1 is worn. is expanded to form a three-dimensional shape. Note that when the mask body 2 is not worn, the pleats are closed, so that the mask body 2 can be made into a planar shape that is not bulky.

The string-shaped elastic material forming the ear straps 3 and 4 is formed of, for example, a woven belt of rubber thread and cotton, a woven net of resin filaments, a stretchable nonwoven fabric, or the like. Both ends of such a string-like material are joined to the side parts 5 and 6 on the left and right sides of the mask body 2, respectively, so that one end of the material becomes the starting point and the other end of the material becomes the ending point. Loop-shaped ear straps 3 and 4 are formed on both left and right sides of the mask body 2.

The nose fitter 7 is a member fixed to the mask body 2 at the upper part of the mask body 2 with its longitudinal direction extending in the width direction of the mask body 2. The nose fitter 7 may be fixed inside the laminate while being sandwiched between the sheet-like breathable materials that constitute the mask body 2, or may be fixed to the surface of the mask body 2. Good too. The nose fitter 7 is a plastically deformable material that has enough strength to be deformed into an appropriate shape by being pressed by the wearer's fingers, and maintains its shape even after being released from the pressing. By providing such a nose fitter 7 on the upper part of the mask body 2, the wearer can close the gap created between the nose and the mask body 2.

The above-mentioned materials constituting the mask 1 are preferably joined by ultrasonic welding, but for example, suturing with sewing thread, adhesion with hot melt adhesive, heat sealing, and various other joining techniques may be applied. .

FIG. 2 is a diagram showing the laminated structure of the mask main body portion according to the embodiment. The mask main body 2 according to the embodiment includes a top sheet 10 (an example of an "outer sheet" in the present application), a filter sheet 11, and a space maintenance layer in the thickness direction from the outside (front surface) side toward the skin surface (mouth) side. It is constructed by laminating sheets 12 and 13 (an example of a "skin sheet" in the present application). The skin side of the skin sheet 13 is in direct contact with the wearer's skin. The top sheet 10 may be made of the same material as the skin sheet 13, or may be a sheet of a different standard with excellent breathability and resistance to the external environment. To prevent incorrect attachment, the colors of the materials of the top sheet 10 and skin sheet 13 can be changed. It is also possible to add marks or character strings indicating the mounting direction and brand logo by printing or engraving.

The filter sheet 11 is a fine-mesh melt-blown nonwoven fabric, and filters fine particles such as pollen and viruses. The filter sheet 11 may be subjected to a charging treatment to enhance its effectiveness, so that it can attract fine particles using static electricity. The space maintenance sheet 12 is a sheet having beam parts made of a combination of rectangular thermoplastic resin films or wires extending in different directions, and has higher bending rigidity than the top sheet 10 and the skin sheet 13. have. Due to its bending rigidity, the space maintaining sheet 12 facilitates maintaining the shape of the pleats while the wearer is wearing the mask. Specifically, the pleats are opened so that the mask body 2 can easily maintain a cup-shaped state. The skin sheet 13 prevents the rigid space maintaining sheet 12 from coming into direct contact with the wearer's skin surface, thereby suppressing a decrease in wearing comfort.

FIG. 3 is a diagram showing the mask with the pleats spread out. The mask main body 2 is provided with a plurality of folds that are folded back at a plurality of points in the short side direction parallel to the width direction, which is the long side direction, to form a pleated structure. Each end of the fold in the long side direction is fixed by side parts 5 and 6. On the other hand, the crease is not fixed at the center in the long side direction. Therefore, the wearer can unfold the folds in the short side direction before wearing the mask, and the mask body 2 can have a bowl-like three-dimensional shape. When the mask 1 is worn with the pleats spread out, a space is formed between the mask body 2 and the wearer's mouth, which reduces the feeling of pressure and makes it easier for the wearer to breathe. can be improved.

When the space maintaining sheet 12 is provided on the mask 1, the mask 1 can easily maintain the state in which the pleats are spread due to the rigidity of the space maintaining sheet 12. Therefore, by widening the pleats, the mouth space created between the mask and the wearer's face during wear can be easily maintained, making it possible to provide a mask 1 that remains comfortable even when worn for a long time.

FIG. 4 is a side view of the mask 1 viewed from above. The nose fitter 7 provided on the upper side of the mask body 2 has a shape in which the center portion in the width direction of the mask body 2 is more convex on the side opposite to the wearer's face than both ends in the width direction. That is, the nose fitter 7 has a shape in which the center portion in the width direction is convex outward. As a result, the upper widthwise center portion of the mask body 2 to which the nose fitter 7 is fixed also becomes outwardly convex. When the mask 1 is worn, the nose fitter 7 bends the center portion in the width direction into a shape that follows the shape of the face, more specifically, the uneven shape of the nose. In the mask 1 according to the present embodiment, in the initial state before use, the part that contacts the wearer's nose is convex on the side opposite to the face, so there is a warning written on the mask package etc. It is possible to understand the front and back sides of the mask body 2 without reading the information. If the front and back sides of the mask body 2 can be grasped, the top, bottom, left and right sides of the mask body 2 can also be grasped. Thereby, the mask 1 according to the present embodiment allows the wearer to appropriately grasp the front and back sides, top, bottom, left and right sides of the mask, and the wearer can wear the mask 1 in an appropriate state. The mask 1 can prevent incorrect wearing.

FIG. 5 shows an example of a partially enlarged view of the wearer side surface of the skin sheet 13 of the mask body 2. As shown in FIG. The skin sheet 13 of the mask body 2 is made of nonwoven fabric. As shown in FIG. 5, the skin sheet 13 of the mask body 2 is provided with an embossing 18 (an example of a "melting part"). Emboss 18 is formed by thermally welding the fibers of the nonwoven fabric to each other. The embossing 18 has a substantially circular shape, and its diameter is, for example, 1 mm or less. Moreover, the arrangement form is, for example, a rectangular two-dimensional grid (emboss 18A in FIG. 5, which is an example of the "first melting part"). In addition, an embossment 18B (an example of a "second melting section") is also provided at the center of the unit cell forming the two-dimensional lattice. Further, the distance between adjacent embossing 18A and embossing 18B is within, for example, about 1 mm to 2.6 mm. Further, the distance between adjacent embossments 18A is, for example, approximately 1 mm to 3.7 mm. When the embossing 18 is provided at such a distance, the area of the embossing 18 per unit area on the skin side of the skin sheet 13 (hereinafter referred to as the area ratio of the embossing 18) is, for example, about 5% to 16%.

Further, FIG. 6 is a diagram illustrating the relationship between the embossing 18 and the nonwoven fabric fibers 13A forming the skin sheet 13 of the mask body 2. As shown in FIG. 6, the plurality of fibers 13A of the nonwoven fabric are in a state where both ends thereof are bonded to the embossing 18. When the fibers 13A have such a form, the fiber basis weight of the nonwoven fabric in the skin sheet 13 is, for example, about 20 to 30 g/m ² .

FIG. 7 is an example of an image taken using an electron microscope of a nonwoven fabric used for a mask. FIG. 7(A) is an example of an image taken of the nonwoven fabric forming the skin sheet 13 of the mask 1 according to the present embodiment. FIG. 7(B) is an example of an image taken of a nonwoven fabric according to a comparative example. Note that although FIG. 7 shows an image captured by a Keyence VHX-D510 as an example, it is possible to obtain a similar image with other electron microscopes. The nonwoven fabric shown in Figure 7(A) is the same as that shown in Figure 7(B).
), the pore diameter between the fibers 13A is small. The pore diameter between the fibers 13A is, for example, about 15 μm to 30 μm. Here, the thickness of an adult male's beard is 120 μm to 160 μm. Therefore, hairs are prevented from entering the holes between the fibers 13A. The maximum value of the pore diameter between the fibers 13A is preferably 30 μm or less, but for example, the skin sheet 13 of the mask 1 may be formed of a nonwoven fabric of 80 μm or less, which is about half the thickness of a beard, or even thinner and 50 μm or less. Good too. Even if the pore diameter is in this range, the whiskers are prevented from entering the pores between the fibers 13A. Further, from the viewpoint of ensuring the breathability of the nonwoven fabric, the skin contacting surface of the mask may be formed of a nonwoven fabric in which the lower limit of the pore size between the fibers 13A is 10 μm. Note that the thickness of the fibers 13A of the nonwoven fabric according to this embodiment is, for example, about 8 to 16 μm.

On the other hand, the pore diameter between the fibers 13B of the nonwoven fabric according to the comparative example shown in FIG. 7(B) is, for example, about 180 μm. Therefore, it can be said that whiskers easily enter the holes between the fibers 13B according to the comparative example.

Further, in this embodiment, a spunbond nonwoven fabric made of polylactic acid (PLA) may be used for the skin sheet 13. Further, for the top sheet 10, a nonwoven fabric having lower rigidity than a spunbond nonwoven fabric made of polylactic acid (hereinafter referred to as "polylactic acid spunbond nonwoven fabric") is used. Examples of nonwoven fabrics having lower rigidity than polylactic acid spunbond nonwoven fabrics include spunlace nonwoven fabrics made from polylactic acid and spunbond nonwoven fabrics whose rigidity is adjusted using fibers, embossing, etc. By using these nonwoven fabrics, the skin sheet 13 can be made more rigid than the top sheet 10.

Further, the skin sheet 13 has higher transparency than the top sheet 10. For example, polylactic acid spunbond nonwoven fabric can be formed so that the diameter of the inscribed circle between the fibers is 80 μm or less, or it can be made to have high rigidity, but since it is formed thin, it is possible to If you look at it from one side, you may be able to see through the other side. In order to prevent this, it is preferable to use a sheet made of a nonwoven fabric with low transparency for the top sheet 10 other than the skin sheet 13, for example. Considering the adhesion to other parts of the mask body 2, we recommend using a spunlace nonwoven fabric made of polylactic acid that has high adhesion to the polylactic acid spunbond nonwoven fabric of the top sheet 10, or a fiber-based or embossed fabric with a high fiber diameter and rigidity. Adjusted spunbond nonwoven fabrics are suitable.

Next, the mask package according to this embodiment will be explained using FIGS. 8 to 10. The mask package includes a mask 1 and a packaging bag (an example of a "storage section" in the present application) that stores the mask 1. FIG. 8 illustrates an outline of a packaging bag 20 for packaging the mask 1. As shown in FIG. 8, the masks 1 are placed in the packaging bag 20 in a state in which they are aligned in the same direction and stacked from the back side to the front side in the paper so that the top sheet 10 of the mask body 2 is on the front side. packaged. When the packaged product is packaged in the packaging bag 20, the top sheet 10 is located at the frontmost side and faces the front side surface 26 of the packaging bag 20.

Note that one side of the packaging bag 20 is initially open in the width direction and the height direction, and the stacked masks 1 are accommodated inside the packaging bag 20 through the opening. That is, when storing the mask 1, it is passed through the opening with the lower end of the mask body 2 at the beginning. Thereafter, the edges of the opening are sealed by heat welding, and as a result, the mask 1 is sealed in the internal space of the packaging bag 20. Further, the heat-welded seal portion 22 extends along the nose fitter 7 of the mask 1 in the accommodated state. The nose fitter 7 of the mask 1 housed in the packaging bag 20 has a substantially straight shape.

Moreover, the shape of the internal space of the packaging bag 20 with the opening sealed and the mask 1 accommodated therein is a rectangular parallelepiped. Further, there is almost no gap between the inner surface of the packaging bag 20 and the mask 1. That is, the shape of the internal space of the packaging bag 20 and the outer shape of the stacked masks 1 are approximately the same.

The packaging bag 20 in which the mask 1 is accommodated in this manner is provided with a perforation 21 (an example of a "removal section" in the present application). The perforations 21 are provided along the minor axis direction (direction perpendicular to the extending direction of the seal portion 22) on the surface 26 of the mask 1 facing the top sheet 10. Note that the upper part of the perforation 21 and the seal portion 22 overlap.

FIG. 9 is an example of a diagram illustrating a method for taking out the mask 1 packaged in the packaging bag 20. As shown in FIG. 9, first, the surface 26 of the packaging bag 20 is torn along the perforations 21 to form an opening 23. Thereafter, insert your finger into the opening 23 and pinch the top sheet 10 side of the mask 1. Then, the mask 1 is pulled out from the top sheet 10 side.

Here, the width of the opening 23 is shorter than the length of the nose fitter 7. Therefore, when the mask 1 passes through the opening 23, force acts on both sides of the central portion of the nose fitter 7 in the direction opposite to the direction in which it is picked out from the lateral edge 24 of the opening 23. Therefore, the nose fitter 7 is plastically deformed to become convex outward.

Further, the shape of the accommodation space of the packaging bag 20 is substantially the same as the outer shape of the mask 1. Therefore, the picked mask 1 is picked out from the opening 23 while remaining in the same orientation as when it was housed in the packaging bag 20.

FIG. 10 illustrates an outline of the mask 1 taken out from the packaging bag 20. As shown in FIG. 10, since the nose fitter 7 of the mask 1 is plastically deformed, the mask 1 maintains its convex state even after being removed from the packaging bag 20. Therefore, the wearer can recognize the skin sheet 13 side of the mask 1 as the skin-contacting surface, and can wear the mask 1 so that the skin-contacting surface is in contact with his or her own skin. Further, the mask 1 remaining in the packaging bag 20 is also taken out in the same manner and placed on the wearer's face.

According to the mask package according to the present embodiment, the deformed state in which the nose fitter 7 is convex in the removal direction is maintained even after the mask 1 is removed from the packaging bag 20. Therefore, the wearer can identify the convex surface as the outside. Therefore, the wearer is prevented from wearing the mask by mistake by confusing the front and back sides.

Further, since the length of the nose fitter 7 is longer than the width of the opening 23, when the mask 1 is taken out from the opening 23, the edge 25 of the opening 23 in the depth direction (see FIG. 9) has a part that is away from the center in the width direction. A pulling force acts in the direction. However, according to the packaging bag 20 as described above, the edge 25 on which the tensile force acts overlaps with the seal portion 22 . Therefore, tearing of the edge 25 in the lateral direction is suppressed. Therefore, even if a plurality of masks 1 are removed from the packaging bag 20, the width of the opening 23 is prevented from becoming wider than the original width. Therefore, when the mask 1 is removed from the opening 23, the function of the nose fitter 7 being convex in the removal direction is maintained. Therefore, the wearer is prevented from wearing the mask 1 by confusing the front and back sides.

Moreover, according to the packaging bag 20 as described above, the seal portion 22 is provided so as to extend in the width direction. Therefore, the effect of suppressing the tearing of the edge 25 of the opening 23 in the width direction is enhanced.

Furthermore, the edge 25 of the opening 23 is located near the nose fitter 7. Therefore, when the mask 1 is taken out from the opening 23, a larger tensile stress in the width direction is applied than to the opposite edge. However, according to the packaging bag 20 as described above, since the seal portion 22 is provided on the edge 25, tearing of the edge 25 in the width direction is suppressed.

Further, according to the packaging bag 20 as described above, the opening 23 is easily formed by tearing the perforation 21. Therefore, it is possible to easily seal the packaging bag 20 and form the opening 23 having a width shorter than the length of the nose fitter 7.

<Modified example>
Next, a mask package according to a modification of this embodiment will be described. In the above embodiment, the packaging bag 20 is illustrated as an example of the accommodating part, but the accommodating part may be a box made of cardboard or the like, for example. In such a case, a piece of cardboard may be placed over the place where the seal part 22 is located instead of the seal part 22. Further, in the above embodiment, the packaging bag 20 is provided with perforations 21, but instead of the perforations 21, an opening and a seal that closes the opening may be provided (the "removal section" of the present disclosure). example). Further, the seal portion 22 may be provided at the end of the surface 26 opposite to the side where the nose fitter 7 is accommodated. Furthermore, the seal portion 22 may not be provided. Further, the number of masks accommodated in the packaging bag 20 may be one or more than one.

Next, a method for manufacturing a mask according to this embodiment will be described. FIG. 11 is a flowchart showing an overview of the mask manufacturing method according to this embodiment. In the mask manufacturing method according to the present embodiment, first, the mask body 2 and the ear straps 3 and 4 are prepared (step S101). Next, the nose fitter 7 is attached to the upper side of the mask body 2 so as to extend in the width direction (step S102). In the process of attaching the nose fitter 7, the continuous body of the nose fitter 7 wound into a roll is cut out for a single mask, and the nose fitter 7 is stretched to such an extent that the center part is convex, and the convex part of the nose fitter 7 is attached to the wearer. The nose fitter 7 is attached to the mask body 2 so as to face the side opposite to the skin side of the mask.

The continuous body of the nose fitter 7 is wound around a roll, thereby giving it a convex shape in advance. The nose fitter 7 is stretched linearly when attached to the mask body 2, but it is stretched to such an extent that the shape of the nose fitter 7 is not lost. The nose fitter 7 is fixed by overlapping the upper end of the mask body 2 and folding back the upper end. The nose fitter 7 fixed to the mask body 2 has a convex central portion due to its shape. The nose fitter 7 is stretched so as to have a convex shape without losing its shape, and the convex direction is adjusted so that it is parallel (linear) to the mask body 2 when placed on the mask body 2. Pressure is applied in the opposite direction, and this pressure is released after attachment to the mask body 2. Then, the released nose fitter 7 has a convex central portion in the width direction. According to the method for manufacturing a mask according to the present embodiment, it is possible to manufacture a mask that can prevent erroneous attachment.

According to this embodiment, in the initial state before the mask 1 is worn, the part that contacts the back of the nose bulges outward along the nose fitter 7, so that when the wearer takes out the mask 1 from the package, The user can grasp the top, bottom, left, right, front and back of the mask body 2, and wear the mask in an appropriate state. Therefore, the mask 1 can prevent incorrect attachment.

According to the mask 1 according to the present embodiment, polylactic acid spunbond nonwoven fabric and polylactic acid spunlace nonwoven fabric, which are biodegradable nonwoven fabrics, can be used, which contributes to solving the problem of plastic waste, which has become a problem in recent years. be able to.

Although the present embodiment has been described above, the content of the present invention is not limited to the above embodiment. The embodiments and application examples thereof disclosed above can be combined.

1...Mask 2...Mask body 3, 4...Ear straps 5, 6...Side part 7...Nose fitter 10...Top sheet 11...Filter sheet 12...Space maintenance sheet 13...Skin surface sheet 13A...Fibers 18, 18A, 18B...Emboss 20...Packaging bag 21...Perforation 22...Seal portion 23...Opening 24, 25...Edge of opening 26...One side of packaging bag

Claims (8)

A mask body having a length along the vertical direction and a length along the width direction and covering the wearer's mouth;
Ear straps provided at both widthwise ends of the mask main body;
a shape maintaining member provided on the upper side of the mask main body, the shape maintaining member extending in the width direction;
Equipped with
The shape maintaining member has a shape in which the center portion in the width direction is more convex on the side opposite to the wearer's face than the both end portions in the width direction.
mask. The mask main body has a skin sheet disposed on the skin side of the wearer, and an outer sheet disposed on the side opposite to the skin side of the skin sheet,
The skin sheet and the outer sheet are different sheets from each other,
The mask according to claim 1. In the skin sheet, the diameter of the inscribed circle between the fibers is 80 μm or less,
The mask according to claim 2. The skin sheet has higher rigidity than the outer sheet.
The mask according to claim 2 or 3. The skin sheet has higher transparency than the outer sheet.
A mask according to any one of claims 2 to 3. A mask according to any one of claims 1 to 5,
a storage section that stores the mask;
Equipped with
The shape maintaining member of the mask stored in the storage portion has a substantially straight shape;
mask package. The storage section has a retrieval section for the mask.
The mask package according to claim 6. A method for manufacturing a mask,
A step of preparing a mask body having a length along the vertical direction and a length along the width direction and covering the wearer's mouth, and ear straps attached to both ends of the mask body in the width direction;
an attachment step of attaching a shape maintaining member to the upper side of the mask body so as to extend in the width direction;
including;
In the installation step,
Cutting out the continuous body of the shape-maintaining member wound into a roll for one mask,
Stretching the shape maintaining member to such an extent that the central portion becomes convex,
attaching the shape-retaining member to the mask body so that the convex of the shape-retaining member faces opposite to the wearer's face;
How to make a mask.

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