Hygienic mask

Abstract

A hygienic mask that fits snugly and prevents the mask from slipping off and glasses from fogging up. [Solution] A hygienic mask having a roughly rectangular cloth body and a pair of ear straps attached to both sides of the cloth body, wherein the cloth body is formed in an upper edge region of the cloth body by folding the upper edge portion of the cloth body inward along a folding position relative to the main surface portion of the cloth body, and has an inner fold portion that is fixed to the main surface portion only at a central fixing portion that is located in the center of the upper edge of the upper edge region of the cloth body except for the folding position, and the inner fold portion has maximum width portions where the fold width is greatest in two locations that are located on either side of the central fixing portion in the left-right direction, and between the two maximum width portions a recessed portion is formed where the fold width is narrower than the maximum width portion, and the fold width of the inner fold portion gradually narrows from the maximum width portion towards both sides.

Description

[Technical field]

[0001] The present invention relates to a sanitary mask that prevents viruses, allergens, and the like in the air from entering the body through the nose and mouth. [Background technology]

[0002] In recent years, the frequency of use of sanitary masks has increased due to the global spread of COVID-19 and the influx of pollen and PM2.5. However, many conventional sanitary masks have issues with the fit to the wearer's face, leading to problems such as the mask slipping off or fogging up glasses if the wearer wears them.

[0003] The inventor of this application invented a cloth mask to solve these problems and obtained a patent for it (see Patent Document 1). The invention for which the inventor obtained a patent forms a three-dimensional structure by sewing together cloth bodies. Meanwhile, among sanitary masks on the market, there is a higher proportion of masks that form a three-dimensional shape by a method other than sewing, such as fusion, rather than masks that form a three-dimensional structure by sewing (see, for example, Patent Document 2, etc.). This is thought to be because masks formed by fusion, etc., are more efficient to manufacture than masks formed by sewing, and are suitable for mass production.

[0004] However, the technology described in Patent Document 1, which uses sewing, cannot be directly applied to masks that form a three-dimensional shape by fusion, etc. In addition, conventional sanitary masks that do not use sewing cannot prevent the mask from slipping off when worn or glasses from fogging up as effectively as the technology described in Patent Document 1. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 6993749 [Patent Document 2] JP 2018-193656 A Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention has been made to solve these problems, and aims to provide a sanitary mask that has a suitable fit, can prevent the mask from slipping off when worn and prevents glasses from fogging up, and has structural characteristics that make it applicable to sanitary masks that do not use sewing. [Means for solving the problem]

[0007] The sanitary mask according to the present invention comprises: A substantially rectangular fabric body; A sanitary mask having a pair of ear straps attached to both sides of the cloth body, The fabric body is The upper side region of the fabric body has an inner folded-back portion which is formed by folding the upper side portion of the fabric body inward along a folding-back position with respect to the main surface portion of the fabric body, and which is fixed to the main surface portion only at a central fixing portion which is arranged at the central portion of the upper side in the upper side region of the fabric body except for the folding-back position, The inner folded portion has two maximum width portions at which the folded width is maximum, the two maximum width portions being disposed on either side of the central fixing portion in the left-right direction, and a recessed portion is formed between the two maximum width portions, the folded width of which is narrower than that of the maximum width portion; The folded width of the inner folded portion gradually narrows from the maximum width portion toward both sides.

[0008] The cloth body of the sanitary mask according to the present invention has an inner fold in the upper edge region of the cloth body. Such structural features related to the inner fold are applicable to sanitary masks that do not use sewing. The inner fold is formed by folding the upper edge portion of the cloth body inward, and can effectively block the gap between the wearer's face and the mask, and can effectively prevent the glasses from fogging up even if the wearer of the sanitary mask wears glasses. Furthermore, the inner fold is formed with two maximum width portions and recesses between them, and when the sanitary mask is worn, the bridge of the wearer's nose passes through the recesses, so that the inner fold provides a good fit and shielding properties.

[0009] In addition, the width of the inner folded portion gradually narrows from the maximum width portion toward both sides and from the maximum width portion toward the central fixing portion. This allows the inner folded portion to suitably fit the curved surface of the wearer's face, preventing the sanitary mask from slipping and increasing the shielding ability of the area covered by the mask. In addition, since the inner folded portion is formed by folding the upper edge portion of the fabric body toward the inside, the upper edge area of ​​the mask has a moderate strength and maintains a moderate flexibility. In addition, the fact that the inner folded portion is fixed to the main surface portion only at the central fixing portion contributes to maintaining the folded state of the inner folded portion and the angle with respect to the main surface portion appropriately. Furthermore, the inner folded portion formed by folding the upper edge portion of the fabric body inward avoids being pressed too strongly against the wearer's face and avoids the upper edge area of ​​the mask becoming excessively heavy, thereby suitably preventing the problem of the mask slipping downward.

[0010] Furthermore, for example, in the sanitary mask according to the present invention, the left-right distance between the two widest portions may be 5 to 25% of the left-right width of the entire inner folded portion.

[0011] By making the inner folded portion in this shape, the sanitary mask of the present invention can have an inner folded portion that fits better to the contours of the wearer's nose bridge and cheekbones, thereby improving the effectiveness of preventing the sanitary mask from slipping and the effectiveness of preventing glasses from fogging up.

[0012] Also, for example, in the sanitary mask according to the present invention, the cloth body is The vertical pleats may be arranged at two positions in the lower edge region of the fabric body substantially symmetrically with respect to the left-right direction, and may be formed so that both sides of the lower edge are inclined downward with respect to the center of the lower edge in the lower edge region of the fabric body. The width of the entire inner folded portion in the left-right direction may be wider than the distance between two of the vertical folds in the left-right direction.

[0013] By having the fabric body have vertical pleats and making the left-right width of the inner folded portion wider than the spacing between the vertical pleats, such a sanitary mask forms an appropriate space between the wearer's face and the fabric body when worn, and can effectively prevent the mask from shifting due to movement of the wearer's mouth or chin.

[0014] Also, for example, the width of the entire inner folded portion in the left-right direction may be 60 to 90% of the width of the entire fabric body in the left-right direction.

[0015] By setting the left-right width of the inner folded portion to a specified ratio relative to the left-right width of the entire fabric body, both ends of the inner folded portion can fit more appropriately to the curve of the wearer's cheekbones, more effectively preventing the mask from slipping and glasses from fogging up.

[0016] Also, for example, the fabric body may be made of a nonwoven fabric, and the fabric body may be a nose wireless structure that does not have a nose wire.

[0017] In the sanitary mask whose cloth body is a nonwoven fabric, the central fixing part can be formed by fusion bonding, and the productivity is improved compared to the case where it is manufactured by sewing, etc. In addition, since the cloth body has a nose wireless structure without a nose wire, the flexibility of the upper side area of ​​the mask can be suitably secured and the upper side area of ​​the mask can be prevented from becoming excessively heavy. In addition, since the cloth body has a nose wireless structure, such a sanitary mask is not bulky when discarded, and even if it is used as a disposable product, it is easy to dispose of it. [Brief description of the drawings]

[0018] [Figure 1] FIG. 1 is a front view showing the outside of a sanitary mask according to one embodiment of the present invention. [Diagram 2] FIG. 2 is a rear view showing the inside of the sanitary mask shown in FIG. [Diagram 3] FIG. 3 is a front view showing the unfolded state of the cloth body of the sanitary mask shown in FIG. [Figure 4] FIG. 4 is a usage state diagram showing a wearing state of the sanitary mask shown in FIG. 1 and FIG. [Diagram 5] FIG. 5 is a second view of the wearing state of the sanitary mask shown in FIG. 4, observed from a different angle. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] Fig. 1 is a front view showing the outside of a sanitary mask 10 according to an embodiment of the present invention, and Fig. 2 is a rear view showing the inside of the sanitary mask 10. As shown in Figs. 1 and 2, the sanitary mask 10 has a cloth body 20 that is generally rectangular when viewed from the front, and a pair of ear straps 92, 94 attached to both sides of the cloth body 20. As shown in Figs. 4 and 5 in a usage state, the sanitary mask 10 is used by hanging the pair of ear straps 92, 94 around the wearer's ears and wearing the cloth body 20 so that it covers the nose, mouth and surrounding areas of the wearer.

[0020] The sanitary mask 10 is used for various purposes, such as preventing infection with pathogens and viruses, suppressing allergic symptoms such as pollen, preventing the spread of droplets, etc. The sanitary mask 10 is used in a wide variety of places, such as schools, workplaces, and public facilities, both indoors and outdoors.

[0021] 1 and 2, the sanitary mask 10 has an inside and an outside, and the sanitary mask 10 is worn and used such that the outside of the fabric body 20 shown in Fig. 1 faces away from the wearer's face, and the inside of the fabric body 20 shown in Fig. 2 faces the wearer's face (see Figs. 4 and 5, which are diagrams of a state of use). The sanitary mask 10 also has a top and bottom, and is worn by the wearer in the position shown in Figs. 1 to 5, in which the fabric body upper edge region 26, which will be described later, faces upward in the vertical direction D2, and the fabric body lower edge region 28 faces downward in the vertical direction D2.

[0022] Of the pair of ear straps 92, 94, the ear strap 92 appears on the right side in the front view of Fig. 1 and on the left side in the rear view of Fig. 2, and is hung around the wearer's left ear when wearing the sanitary mask 10. The ear strap 92 is fixed to the left side 22 of the fabric body 20. However, the ear strap 92 may be seamlessly continuous with the fabric body described below, or the ear strap 92 may be integral with the fabric body 20.

[0023] Of the pair of ear straps 92, 94, the ear strap 94 appears on the left side in the front view of Fig. 1 and on the right side in the rear view of Fig. 2, and is hung around the right ear of the wearer when wearing the sanitary mask 10. The ear strap 94 is fixed to the right side 24 of the fabric body 20. However, like the ear straps 92, the ear strap 94 may be seamlessly continuous with the fabric body 20, or the ear strap 94 may be integral with the fabric body 20.

[0024] As shown in Figures 1 and 2, the fabric body 20 has a main surface portion 30 and an inner folded portion 40 connected to the main surface portion 30 in the fabric body upper side region 26. As shown in Figures 1 and 2, the fabric body 20 is substantially rectangular in front view and back view. However, since the fabric body 20 has the inner folded portion 40 in the fabric body upper side region 26 and has vertical pleats 32, 34 on the main surface portion 30 in the fabric body lower side region 28, the fabric body has a shape that is slightly different from a mathematically defined rectangle.

[0025] As shown in Figures 1 and 2, when the sanitary mask 10 is worn, the main surface portion 30 of the fabric body 20 is arranged so that the inner surface faces the wearer's face and the outer surface faces the opposite side to the wearer's face, and the surface direction D3 of the main surface portion 30 is generally aligned with the surface direction of the wearer's face (see Figure 5).

[0026] 1 and 2, a plurality of horizontal folds 36 ("horizontal folds" are also called "pleats") extending in the left-right direction D1 are formed on the main surface portion 30. In the example shown in Figs. 1 and 2, four horizontal folds 36 are formed at approximately equal intervals in the vertical direction.

[0027] Fig. 3 is a front view showing the material fabric body 12 which is the material of the fabric body 20 of the sanitary mask 10 shown in Fig. 1. The fabric body 20 of the sanitary mask is manufactured, for example, by forming horizontal pleats 36, vertical pleats 32, 34, and an inner folded portion 40 on the material fabric body 12 as shown in Fig. 3. The material fabric body 12 is manufactured, for example, by cutting a single-layer or multi-layer fabric including a nonwoven fabric into the shape shown in Fig. 3.

[0028] The horizontal pleats 36 shown in Figures 1 and 2 are formed by valley folding the horizontal pleat valley fold lines 37a shown in Figure 3 and mountain folding the horizontal pleat mountain fold lines 36a directly above the horizontal pleat valley fold lines 37a. As a result, the upper and lower parts of the horizontal pleat valley fold lines 37a shown in gray in Figure 3 are folded, and the horizontal pleats 36 shown in Figures 1 and 2 are formed.

[0029] 3, the folded portions of the horizontal pleats 36 are fixed at their opposing surfaces so that they do not unfold only on both sides 22, 24 of the main surface 30. Therefore, when the sanitary mask 10 is worn, the central portion of the horizontal pleats 36 in the left-right direction D1 is partially or entirely unfolded as shown in FIG. 4, and the main surface 30 expands in the up-down direction D2 to fit the shape of the wearer's face.

[0030] In the sanitary mask 10 described as an embodiment, the main surface portion 30 of the fabric body 20 has four horizontal pleats 36 formed thereon, but the number of horizontal pleats 36 formed on the main surface portion 30 is not particularly limited. The main surface portion 30 may be formed by joining a plurality of fabric material bodies by sewing, fusion (welding), adhesion, or the like to form a three-dimensional shape. The horizontal pleats 36 may be folded up when viewed from the outside, or may be folded up when viewed from the inside, or multiple horizontal pleats may be formed by combining the former and the latter.

[0031] 1 and 2, the fabric body 20 has vertical pleats 32, 34 formed on the main surface portion 30 of the fabric body lower side region 28. The vertical pleats 32, 34 are arranged in two locations approximately symmetrically with respect to the left-right direction D1. That is, the vertical pleats 32, 34 are composed of a left vertical pleat 32 formed closer to the lower left side 22b than the lower center portion 29, and a right vertical pleat 34 formed closer to the lower right side 24b than the lower center portion 29.

[0032] The left vertical pleat 32 and the right vertical pleat 34 each extend substantially along the vertical direction D2, but at a slight incline relative to the vertical direction D2. By forming such left vertical pleat 32 and right vertical pleat 34, both lower sides (the lower left side 22b and the lower right side 24b) are inclined downward with respect to the lower center portion 29 of the main surface portion 30 of the fabric body 20.

[0033] The left vertical pleat 32 and the right vertical pleat 34 shown in Figures 1 and 2 are formed by valley folding the vertical pleat valley fold lines 33, 35 shown in Figure 3 and mountain folding the vertical pleat mountain fold lines 32a, 34a. As a result, the areas between the vertical pleat valley fold lines 33, 35 and the vertical pleat mountain fold lines 32a, 34a shown in gray in Figure 3 are folded, and the vertical pleats 32, 34 shown in Figures 1 and 2 are formed.

[0034] The folded portions of the left vertical pleat 32 and the right vertical pleat 34 shown in gray in Fig. 3 are fixed at their opposing surfaces so that they do not unfold only at the lower side of the main surface portion 30. Therefore, when the sanitary mask 10 is worn, the left vertical pleat 32 and the right vertical pleat 34 are partially unfolded as shown in Fig. 4, and the main surface portion 30 forms a three-dimensional shape as shown in Figs. 4 and 5.

[0035] As shown in Figs. 1 to 3, an inner folded-up portion 40 is formed in the upper edge region 26 of the fabric body 20, which is a portion near the upper edge of the fabric body 20. As shown in Fig. 3, the inner folded-up portion 40 is formed by folding back the upper edge portion of the fabric body 20 to the inside of the fabric body 20 along a folding position 25 (see Fig. 3) with respect to the main surface portion 30 of the fabric body 20. The inner folded-up portion 40 may be seamlessly continuous with the main surface portion 30 as in the fabric body material 12 shown in Fig. 3, but may also be formed from a fabric body material different from the main surface portion 30 that is connected to the main surface portion 30 by fusion, adhesion, sewing, or the like.

[0036] 1 to 3, the inner folded portion 40 has a shape symmetrical in the left-right direction D1 with respect to a central fixing portion 47 that is located in the center of the upper side of the fabric body upper side region 26. That is, the inner folded portion 40 has a left folded portion 42 that is located on the left side 22 side of the central fixing portion 47 and a right folded portion 44 that is located on the right side 24 side of the central fixing portion 47, and the left folded portion 42 and the right folded portion 44 have shapes that are approximately symmetrical to each other.

[0037] 1 to 3, the inner folded portion 40 has a left maximum width portion 42a and a right maximum width portion 44a, which are the widest portions in the inner folded portion 40 where the folding width W1 is maximum, at two locations disposed on either side of the central fixed portion 47 in the left-right direction D2. Note that, as shown in FIG. 3, the folding width of the inner folded portion 40 is defined by the width of the inner folded portion 40 along the direction perpendicular to the folding position 25 (or the upper side of the main surface portion 30).

[0038] 2, a recess 46 having a narrower folding width than the maximum width portions 42a, 44a is formed between the two maximum width portions, that is, the left maximum width portion 42a and the right maximum width portion 44a. The folding width of the inner folded portion 40 gradually narrows from the maximum width portions 42a, 44a toward the central fixing portion 47, and the folding width of the recess 46 is narrowest at the central fixing portion 47 located in the center.

[0039] As shown in Figs. 1 and 2, the inner folded portion 40 is fixed to the main surface portion 30 only at the central fixing portion 47 except for the folding position 25. That is, the edge portion 40a of the inner folded portion 40 is not fixed to the main surface portion 30 except at least the central fixing portion 47, and can be separated from the main surface portion 30. As a result, as shown in Fig. 5, when the sanitary mask 10 is worn, the inner folded portion 40 flips up while being twisted from the central fixing portion 47 toward both sides 22, 24. It is believed that such deformation of the inner folded portion 40 is caused by the compressive deformation stress generated on the inside of the curved sanitary mask 10 acting on the upper edge region 26 of the fabric body where the inner folded portion 40 is arranged.

[0040] 2 and 3, the folding width of the inner folded portion 40 gradually narrows from the maximum width parts 42a, 44a toward both sides 22, 24, and the folding width is zero at the left folded end 42b and the right folded end 44b. As shown in FIG. 2, the width WA in the left-right direction of the entire inner folded portion 40 (the distance between the left folded end 42b and the right folded end 44b) is preferably equal to or smaller than the width WB in the left-right direction of the entire fabric body 20, and more preferably 60 to 90% of the width WB in the left-right direction of the entire fabric body 20. The folding width W1 at the maximum width parts 42a, 44a is not particularly limited, but is preferably about 5 to 10 mm.

[0041] By setting the width WA of the entire inner fold 40 in the left-right direction within a predetermined range relative to the width WB of the entire cloth body 20 in the left-right direction, the inner fold 40 can suitably shield the gap between the cloth body upper edge region 26 of the sanitary mask 10 and the wearer's face, thereby enhancing the shielding effect of the sanitary mask 10. Furthermore, if the wearer of the sanitary mask 10 is wearing glasses, the problem of water vapor and heat contained in the wearer's breath fogging up the glasses can be more effectively prevented.

[0042] Moreover, it is preferable that the width WA of the entire inner folded portion 40 in the left-right direction is wider than the distance WC in the left-right direction D1 between the two vertical pleats, the left vertical pleat 32 and the right vertical pleat 34. With this configuration, the inner folded portion 40 can easily fit to the cheekbone line of the wearer, and the vertical pleats 32, 34 can easily fit the lower edge region 28 of the fabric body to the jaw line of the wearer, thereby improving the shielding ability of the sanitary mask 10. In addition, the distance from the wearer's mouth to the inside of the main surface portion 30 can be appropriately secured, and the sanitary mask 10 can be suitably prevented from shifting when the wearer moves their mouth while talking, etc.

[0043] Furthermore, the left-right distance WD between the two maximum width parts 42a, 44a is preferably 5 to 25% of the left-right width WA of the entire inner folded portion 40. This allows the maximum width parts 42a, 44a of the inner folded portion 40 to make suitable contact with the bridge of the wearer's nose, improving the shielding properties of the sanitary mask 10 and suitably preventing the sanitary mask 10 from shifting when worn.

[0044] The material of the fabric body 20 is not particularly limited, and examples thereof include nonwoven fabrics such as polypropylene, gauze and other woven fabrics such as cotton, foamed resins such as polyurethane, etc. However, as the material of the fabric body 20, one mainly made of resin nonwoven fabric is preferable because it is easy to form pleats (horizontal pleats 36, vertical pleats 32, 34) and the central fixed part 47 by welding or the like, and it has good productivity.

[0045] In addition, the fabric body 20 has a nose wireless structure that does not have a nose wire, which can favorably ensure the flexibility of the fabric body upper edge region 26 of the sanitary mask 10 and prevent the fabric body upper edge region 26 of the sanitary mask 10 from becoming excessively heavy. In addition, because the fabric body 20 has a nose wireless structure, such a sanitary mask 10 is not bulky when discarded, and can be easily disposed of even when used as a disposable item.

[0046] Fig. 4 is a view showing a wearing state of the sanitary mask 10 shown in Fig. 1 and Fig. 2. As shown in Fig. 4, the inner folded part 40 of the sanitary mask 10 has a central fixing part 47 positioned above the bridge of the wearer's nose, and the left folded part 42 and the right folded part 44 each come into contact with the protrusions connecting the bridge of the nose to the cheekbones.

[0047] 5 is a second use state diagram of the sanitary mask 10 shown in FIG. 4 in a worn state, observed from diagonally above the right of the wearer. As shown in FIG. 5, in the sanitary mask 10 worn state, the left folded portion 42 and the right folded portion 44 constituting the inner folded portion 40 flip up while being twisted from the central fixing portion 47 toward both sides 22, 24. As a result, the sanitary mask 10 can effectively block the gap between the wearer's face and the mask, and can effectively prevent the glasses from fogging up even if the wearer of the sanitary mask 10 wears glasses. Such structural features regarding the inner folded portion 40 can also be applied to masks that do not use sewing.

[0048] In addition, the inner folded portion 40 is formed with two maximum width portions 42a, 44a (see FIG. 2) and a recessed portion 46 sandwiched therebetween, and when the sanitary mask is worn, the bridge of the wearer's nose passes through the recess of the recessed portion 46. This allows the sanitary mask 10 to provide a suitable fit and shielding, especially in the upper edge region 26 of the cloth body. Furthermore, the folding width of the inner folded portion 40 gradually narrows from the maximum width portions 42a, 44a toward both sides 22, 24, and from the maximum width portions 42a, 44a toward the central fixing portion 47. This allows the inner folded portion 40 to suitably fit the curved surface of the wearer's face, preventing the sanitary mask 10 from slipping and increasing the shielding properties of the area covered by the sanitary mask 10.

[0049] In addition, since the inner folded portion 40 is formed by folding the upper side portion of the cloth body 20 inward as shown in FIG. 3, the upper side region 26 of the cloth body of the sanitary mask 10 has a moderate strength and maintains a moderate flexibility. In addition, the inner folded portion 40 is fixed to the main surface portion 30 only at the central fixing portion 47, as shown in FIG. 5, the folded state of the inner folded portion 40 and the angle with respect to the main surface portion 30 (the jumped-up state of the inner folded portion 40) during device magnetization can be appropriately maintained. Furthermore, since the inner folded portion 40 formed by folding the upper side portion of the cloth body 20 inward has a moderate flexibility, it prevents the wearer's face from being hit too hard and prevents pain even when worn for a long time. In addition, by preventing the upper side region 26 of the cloth body of the sanitary mask 10 from becoming excessively heavy, the problem of the sanitary mask 10 shifting downward can be appropriately prevented. [Explanation of symbols]

[0050] 10. Sanitary mask 20...Cloth body 22...Left side 24…Right side 25…Turn position 26...Upper edge area of ​​fabric 22b…Bottom left side 24b…Bottom right side 28...Bottom edge area of ​​fabric 29…Center of bottom edge 30…Main surface part 32…Left vertical fold 33, 35…Vertical folds 34…Right vertical fold 32a, 34a...Vertical fold lines 36…Horizontal pleats 36a...Horizontal fold line 37a...Horizontal fold valley line 40…Inner folded part 40a…Edge 42…Left fold 42a…Left widest part 42b…Left folded end 44…Right turn 44a…Right widest part 44b…Right bend end 46…Recessed part 47...Central fixed part W1…fold width WA, WB…Width WC, WD…Interval 92…Ear strap 94…Ear strap D1…Left and right direction D2…Vertical direction

Claims

1. A substantially rectangular fabric body; A sanitary mask having a pair of ear straps attached to both sides of the cloth body, The fabric body is In the upper side region of the fabric body, the upper side portion of the fabric body is folded inward along a folding position relative to the main surface portion of the fabric body, and an inner folded-back portion is fixed to the main surface portion only at a central fixing portion disposed in the central portion of the upper side in the upper side region of the fabric body except for the folding position, the inner folded-back portion has two maximum width portions at which the folded width is maximum, the two portions being disposed on either side of the central fixing portion in the left-right direction, and a recessed portion is formed between the two maximum width portions, the folded width of which is narrower than that of the maximum width portion; The width of the inner folded portion is gradually narrowed from the maximum width portion toward both sides, The vertical pleats are arranged at two positions on the main surface of the lower edge region of the fabric body, approximately symmetrically with respect to the left-right direction, and are formed so that both sides of the lower edge are inclined downward with respect to the center of the lower edge in the lower edge region of the fabric body. A sanitary mask, characterized in that the width of the entire inner folded portion in the left-right direction is wider than the distance in the left-right direction between two of the vertical pleats.

2. The sanitary mask according to claim 1, wherein the left-right distance between the two widest portions is 5 to 25% of the left-right width of the entire inner folded portion.

3. The sanitary mask according to claim 1, wherein the width of the entire inner folded portion in the left-right direction is 60 to 90% of the width of the entire fabric body in the left-right direction.

4. The sanitary mask according to claim 1, characterized in that the cloth body is a nose wireless structure that does not have a nose wire.

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