Mask

Abstract

A mask, comprising: a mask body; a pair of sheet-like hanging parts; and a sheet-like auxiliary material which intervenes in the combination of the above-mentioned mask body and the above-mentioned hanging parts. At each end of the mask body in the left-right direction, the hanging parts and the auxiliary material are overlapped on one side of the mask body. The outer end edges of the hanging parts in the left-right direction are located at positions closer to the inside than the outer end edges of the mask body in the left-right direction and the outer end edges of the auxiliary material in the left-right direction. A first joint part where the mask body and the auxiliary material are joined in the thickness direction and a second joint part where the hanging parts and the auxiliary material are joined in the thickness direction are formed. The second joint part reaches the outer end edges of the hanging parts in the left-right direction.

Description

Technical Field

[0001] The present invention relates to a mask. Background Art

[0002] As a configuration of a mask worn on the face, a mask is known that includes a mask body that at least partially covers the face of the wearer, and a pair of hanging parts that are respectively combined with the mask body, that is, parts that can be hung on each ear of the wearer to hold the mask body in its wearing position. The above-mentioned hanging parts mostly use elastic parts.

[0003] In recent years, in order to reduce the burden on the ears, research has been conducted on using sheet-like hanging parts instead of cord-like hanging parts. For example, Patent Document 1 discloses a mask in which a sheet-like first hanging part and a second hanging part are respectively joined to the left and right ends of the mask body part.

[0004] (Prior Art Documents)

[0005] (Patent Documents)

[0006] Patent Document 1: Japanese Patent No. 5436262 Gazette Summary of the Invention

[0007] (Problems to be Solved by the Invention)

[0008] However, in the configuration disclosed in Patent Document 1, the hanging part is directly combined with the mask body. Therefore, depending on the configuration of the hanging part and / or the configuration of the mask body, there are cases where sufficient bonding strength cannot be obtained between the hanging part and the mask body. For example, when the hanging part is formed of an elastic material, there is a possibility that the mask body does not follow the elastic deformation of the hanging part during the wearing operation and during wearing, and thus the hanging part separates from the mask body and the mask is damaged. Therefore, it is possible to consider researching the combination between the hanging part and the mask body, and making another part intervene between the two to combine them. However, depending on the combination method, the end of the hanging part may become free, and sometimes the edge of the hanging part curls up, and the thickness of the mask increases corresponding to the amount of curling of the edge, and sometimes the volume becomes large during storage.

[0009] In view of the above, a problem of one aspect of the present invention is to provide a mask that is difficult to damage, has an excellent wearing feeling, and does not increase in volume during storage.

[0010] (Means for Solving the Problems)

[0011] A mask according to one embodiment of the present invention includes: a mask body; a pair of sheet-like ear-hanging parts; and a sheet-like auxiliary material that intervenes in the connection between the mask body and the ear-hanging parts. At each end of the mask body in the left-right direction, the ear-hanging parts and the auxiliary material are overlapped on one side of the mask body. The outer edges of the ear-hanging parts in the left-right direction are located inside the outer edges of the mask body and the outer edges of the auxiliary material in the left-right direction. A first joint part where the mask body and the auxiliary material are joined in the thickness direction and a second joint part where the ear-hanging parts and the auxiliary material are joined in the thickness direction are formed. The second joint part reaches the outer edge of the ear-hanging part in the left-right direction.

[0012] (Effects of the Invention)

[0013] According to one embodiment of the present invention, it is possible to provide a mask that is difficult to damage, has an excellent wearing feeling, and does not increase in volume during storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a top view of the outside of a mask according to one embodiment of the present invention as viewed from the outside.

[0015] Figure 2 It is from Figure 1 The top view observed from the inside (face side) of the shown mask.

[0016] Figure 3 It is Figure 1 The cross-sectional view taken along the line I-I of

[0017] Figure 4 It is a top view showing the state after a pair of ear-hanging parts are opened to the side respectively.

[0018] Figure 5 It is Figure 4 The cross-sectional view taken along the line II-II of

[0019] Figure 6 It is Figure 4 The enlarged view of the partial III of , which is a view for explaining the second joint part.

[0020] Figure 7 It shows the second joint part of the modified example.

[0021] Figure 8 It shows the second joint part of another modified example.

[0022] Figure 9 It shows the second joint part of still another modified example.

[0023] Figure 10 It shows the second joint part of still another modified example. Detailed Embodiments

[0024] Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail. It should be noted that in the respective drawings, unless otherwise specified, the same or corresponding components are sometimes given the same reference numerals and the description thereof is omitted. In addition, the drawings are schematic diagrams to facilitate understanding of the invention.

[0025] (Basic Configuration of Mask)

[0026] The mask of this embodiment can be a mask that can cover the face of the wearer, and more specifically, cover at least the nose and mouth of the wearer. The mask of this embodiment can have the function of preventing foreign objects from reaching the face or preventing the droplets generated by the wearer from scattering, and it is also called a sanitary mask or a surgical mask. The mask can be disposable or can be repeatedly used by washing.

[0027] Figure 1 A top view of the mask 1 of this embodiment is shown. Figure 1 It is a view of observing the mask 1 from the outside (or the outer surface side), that is, the side that is exposed to the outside and does not face the face when worn. In addition, Figure 2 A top view of observing the mask from the inside (face side) is shown. Figure 3 Shows Figure 1 A cross-sectional view taken along line I-I of

[0028] As Figure 1 shown, the mask 1 of this embodiment is arranged in front of the face of the wearer when worn, and it includes a mask body 10 that can mainly cover the nose and mouth of the wearer, and a pair of hanging ears 20a, 20a combined with the mask body 10. The mask body 10 has a longitudinal direction D1 corresponding to the up-and-down direction of the face of the wearer when worn, and a left-right direction D2 corresponding to the left-and-right direction of the face of the wearer when worn. In Figure 1 this embodiment, the mask body 10 has a rectangular top view shape with a long side in the left-right direction D2, but the top view shape of the mask body 10 is not limited to the shape shown in the figure.

[0029] As Figure 1 and Figure 2As shown, the mask body 10 has a pleat structure 15 formed by a plurality of pleats arranged in the vertical direction D1. The pleats of the pleat structure 15 are formed by folding the sheet constituting the mask body 10 at the folding line along the left-right direction D2. And, in a state where a plurality of pleats are formed, both side portions (both end portions in the left-right direction D2) of the mask body 10 are fixed by heat sealing or the like. Therefore, when the mask 1 is used, by expanding the pleats of the pleat structure 15 in the vertical direction D1, the center of the mask body 10 in the left-right direction D2 bends so as to protrude toward the outer surface side of the mask 1, and it can be deformed into a shape suitable for the three-dimensional shape of the face. The specific configuration of the pleat structure 15 is not particularly limited and may be a known configuration formed in the mask body.

[0030] The mask body 10 may have a multi-layer structure formed by laminating a plurality of layers. For example, it may be a three-layer structure including at least an intermediate layer that improves the function of capturing foreign substances (dust, pollen, bacteria, viruses, etc.) by being sandwiched between an outer layer and an inner layer. Each layer constituting the main body 10 preferably includes a fiber-containing layer such as a non-woven fabric, a textile, or a knitted fabric, and more preferably includes a non-woven fabric. As the non-woven fabric, spunbond non-woven fabric, hydroentangled non-woven fabric, meltblown non-woven fabric, thermally bonded non-woven fabric, dot-bonded non-woven fabric, etc. can be cited. In addition, it is preferable to use a meltblown non-woven fabric capable of including finer fibers in the intermediate layer. In addition, it is preferable that the fibers constituting the fiber-containing layer are resin fibers, and as the types of resins for the resin fibers, polyethylene, polypropylene, polyethylene terephthalate, nylon, etc. can be cited. The unit area weight of the outer layer and the inner layer is 10 to 50 g / m 2 , preferably 15 to 50 g / m 2 . It is preferable that the unit area weight of the intermediate layer with higher foreign substance capturing property is 10 to 100 g / m 2 , more preferably 15 to 50 g / m 2 .

[0031] Each of the pair of ear loops 20a, 20a may be annular (or a closed band shape) in plan view, or have a shape including a loop. When wearing, the wearer's ear enters the inside of the loop of the ear loop 20a, that is, enters the central opening 29 of the ear loop 20a, so that the ear loop 20a can be hung on the ear.

[0032] As Figure 1 and Figure 2 shown, the pair of ear loops 20a, 20a are formed in a sheet shape. Since the pair of ear loops 20a, 20a are in a sheet shape and can be in surface contact with the back of the ear or the back of the earlobe when hanging the ear loop 20a on the ear during mask wearing, the burden on the ear can be reduced. Therefore, discomfort can be reduced even when used for a long time.

[0033] In Figure 1 and Figure 2In the shown manner, a pair of hanging parts 20a, 20a are formed as a single sheet-like hanging part piece 20 that is joined in a separable manner at the center in the left-right direction D2. Here, a single sheet means a manner formed by a continuous single sheet. This single sheet can be a single layer or a laminate formed by laminating multiple layers. By making the pair of hanging parts 20a, 20a into a single sheet-like shape, it is possible to position the hanging parts 20a, 20a simultaneously during manufacturing, making the manufacture of the mask easier. However, the pair of hanging parts 20a, 20a do not have to be joined.

[0034] When a pair of hanging parts 20a, 20a are formed as the hanging part piece 20, the hanging part piece 20 can be configured to be able to form a pair of hanging parts 20a, 20a that are separated by breaking at a specified position. More specifically, in Figure 1 's manner, a pair of hanging parts 20a, 20a are joined by a joining part 28. The joining form of the joining part 28 is not particularly limited, but it is preferably a joining that can be separated by stretching with the normal force of the user. For example, it can be formed as a stitch hole as Figure 1 shown. In addition, by setting the thickness of the sheet to be small, or by other means making the boundary of the pair of hanging parts 20a, 20a vulnerable or easy to apply stress, the joining part 28 can be formed. In addition, the joining part 28 can be configured such that the user can cut it with a tool such as scissors.

[0035] Both ends of each of the pair of hanging parts 20a, 20a in the left-right direction D2 are joined to the main body 10 by an auxiliary material 30 (described in detail later), and the other parts are not joined to the mask main body 10. When starting to use the mask 1 of this manner, before wearing the mask 1, the user opens the parts of the hanging parts 20a, 20a that are not joined to the main body 10 to the side in the left-right direction D2 (also called the unfolding action). As described above, when the pair of hanging parts 20a, 20a are joined in a separable manner, before the unfolding action, the joining is released to separate the hanging parts 20a, 20a from each other (also called the separating action).

[0036] A pair of hanging parts 20a, 20a are respectively joined to both side parts (both ends in the left-right direction D2) on one side of the mask main body 10. In addition, as Figures 1 to 3 shown, a pair of hanging parts 20a, 20a (hanging part piece 20) have a shape and size that do not protrude from the mask main body 10 at least in the left-right direction D1 in a top view. With this configuration, during manufacturing, complex processes such as bending of the hanging part piece 20 are not required, and by overlapping and joining the mask main body 10 and the hanging part piece 20, continuous manufacturing of the mask can be carried out.

[0037] The hanging ear parts 20a, 20a (or the hanging ear part piece 20) can be formed of a stretchable material, or a material that is stretchable at least in the left-right direction. Due to the stretchability of the hanging ear parts 20a, 20a, during the mask wearing operation, the user can easily stretch the hanging ear parts 20a, 20a to the back of the ears and then hang them on the ears. Additionally, during wearing (while wearing), the mask body 10 can be made to fit the face by the tensile stress generated in the hanging ear parts 20a, 20a.

[0038] The hanging ear part 20a can be a single-layer sheet made of a stretchable material, or a multi-layer sheet formed by laminating multiple layers including a layer made of a stretchable material. The so-called stretchable material can be a stretchable non-woven fabric, a stretchable film, or a linear or cord-like stretchable component such as an elastic thread. In the case of including a stretchable non-woven fabric, the stretchability of the non-woven fabric can be manifested by the non-woven fabric including stretchable fibers, for example, the material of the fiber itself has stretchability or the fiber is a crimped fiber. Or, the stretchability can be manifested by a specified physical structure, for example, by having unevenness on the surface. As a specific example of the stretchable non-woven fabric, stretchable thermal-bonded non-woven fabric, stretchable spunbond non-woven fabric, stretchable hydroentangled non-woven fabric, stretchable needle-punched non-woven fabric, stretchable chemically bonded non-woven fabric, etc. can be cited. The unit area weight of the preferably used non-woven fabric is 5 - 50 g / m 2 , more preferably 8 - 35 g / m 2 .

[0039] In the case where the hanging ear part 20a is composed of a multi-layer sheet formed by laminating multiple non-woven fabric layers, for example, it can be set to a structure of spunbond non-woven fabric / meltblown non-woven fabric / spunbond non-woven fabric, and at least one of these can use a stretchable non-woven fabric. Additionally, in the case where the hanging ear part 20a is composed of a multi-layer sheet including a stretchable film, structures such as non-woven fabric / stretchable film, non-woven fabric / stretchable film / non-woven fabric (for example, spunbond non-woven fabric / stretchable film / spunbond non-woven fabric, thermal-bonded non-woven fabric / stretchable film / thermal-bonded non-woven fabric, etc.) can be cited. In the case of a sheet formed by laminating two layers, any one layer is set to be stretchable. In a state where the stretchable layer is stretched, another layer is laminated and intermittently fixed, and then it is relaxed and returned to the natural state, thereby a sheet for the hanging ear part 20a can be obtained. Additionally, in the case of a sheet formed by laminating three layers, in a state where the central layer is stretched, layers are laminated on both of its sides and intermittently fixed, and then it is relaxed and returned to the natural state, thereby a sheet for the hanging ear part 20a can be obtained.

[0040] Among these, from the viewpoint of ease of manufacture and high stretchability, a configuration using a stretchable film is preferably employed, particularly a configuration in which non-woven fabrics are disposed on both sides of the stretchable film. As materials for the stretchable film, polyolefins such as polyethylene and polypropylene, and polyurethanes can be cited. Regarding the stretchability of the stretchable film, it is preferable that the stretchable film 5 has a maximum elongation rate (elongation rate at break) of 3.5 to 4.0 as measured by a tensile testing machine. In addition, the stretchable film may have a function of allowing moisture to permeate. When using the stretchable film, after intermittently joining the non-woven fabric to the stretchable film in a state where the stretchable film is stretched at a specified magnification relative to its natural length, it is relaxed and returned to the natural state, thereby enabling the formation of a sheet for the hanging ear portion 20a. Since the unjoined portions of the non-woven fabric bulge due to the relaxation of the stretchable film, a number of pleats extending in a direction substantially orthogonal to the stretching direction are formed on the obtained sheet.

[0041] It should be noted that the sheet for the hanging ear portion 20a can be formed by sandwiching the linear elastic body with a non-woven fabric having low stretchability or no stretchability in a stretched state. In addition, the above materials can be bonded to each other with a stretchable or non-stretchable heat-melt non-woven fabric (a non-woven fabric that can be bonded to other components by heating to soften or melt the fibers).

[0042] The unit area weight of the hanging ear portion 20a (hanging ear sheet 20) can be 20 to 150 g / m 2 . In addition, the thickness of the hanging ear portion 20a can be 100 to 3,000 μm.

[0043] (Auxiliary material)

[0044] In this embodiment, as Figure 1 and Figure 3 shown, sheet-like auxiliary materials 30 that mediate the connection between the mask body 10 and the hanging ear portion 20a are respectively provided at the ends in the left-right direction D2 of the mask body 10. That is, a pair of hanging ear portions 20a, 20a can be respectively connected to the side portions of the mask body 10 through the sheet-like auxiliary materials 30, 30.

[0045] The auxiliary material 30 may extend in the up-down direction D1 of the mask 1. In addition, the length (width) of the auxiliary material 30 in the left-right direction D2 varies depending on the overall size and configuration of the mask 1, and the size, shape, and material of the main body 10 and the hanging ear portion 20a, and is preferably 15 to 35 mm. The unit area weight of the auxiliary material 30 can be 5 to 100 g / m 2 . In addition, the thickness of the auxiliary material 30 can be 100 to 1,000 μm.

[0046] The auxiliary material 30 can be formed of a material that is non-stretchable or has little stretchability, or can be formed of a material having a certain degree of stretchability. For example, the auxiliary material 30 may include stretchable non-woven fabric. In this case, it is preferable that the auxiliary material 30 has stretchability at least in the left-right direction D2, but it is preferable that the stretchability of the auxiliary material 30 is smaller than that of the hanging ear part 20a. It should be noted that the auxiliary material 30 can be formed of a material whose shape can be irreversibly deformed when a force is applied.

[0047] As Figure 1 and Figure 3 shown, the auxiliary material 30 is disposed on the side of the mask body 10 where a pair of hanging ear parts 20a, 20a overlap. That is, at the end of the mask body 10 in the left-right direction D2, the mask body 10, the hanging ear part 20a, and the auxiliary material 30 overlap. In Figure 1 and Figure 3 the shown manner, the mask body 10, the hanging ear part 20a, and the auxiliary material 30 are sequentially overlapped. In addition, the outer edge 11 of the mask body 10 and the outer edge 31 of the auxiliary material 30 may be located at substantially the same position in the left-right direction D2, and the outer edge (also referred to as the joining side edge) 21 of the hanging ear part 20a (hanging ear piece 20) is located on the inner side of the outer edge 11 of the mask body 10 and the outer edge 31 of the auxiliary material 30 in the left-right direction D2. Thus, the mask body 10 and the auxiliary material 30 can be in contact with each other in the thickness direction of the mask body 10 at the end in the left-right direction D2, and the hanging ear part 20a and the auxiliary material 30 can also be in contact with each other in the thickness direction. And, within the range where the mask body 10 and the auxiliary material 30 are in contact, a first joining part 50 where the two are joined is formed, and within the range where the hanging ear part 20a and the auxiliary material 30 are in contact, a second joining part 60 where the two are joined is formed. It should be noted that Figures 1 to 3 (and those referred to later in Figure 4 and Figure 5 ) the configurations of the first joining part 50 and the second joining part 60 are schematically shown, and for the detailed content thereof (shape, size, arrangement, etc.), refer to the enlarged view ( Figures 6 to 9 ) for description.

[0048] Thus, in this embodiment, since the auxiliary material 30 is interposed between the hanging ear part 20a and the mask body 10, the mask 1 can be formed without directly joining the hanging ear part 20a and the mask body 10. Therefore, the joining of the mask body 10 and the auxiliary material 30 and the joining of the hanging ear part 20a and the auxiliary material 30 can be respectively formed appropriately.

[0049] As described above, the mask body 10 has the function of blocking the intrusion of foreign substances and preventing the scattering of droplets generated by the wearer. On the other hand, the ear-hanging parts 20a have the function of hanging on the ears of the wearer during wearing to hold the body 10. Therefore, the mask body 10 and the ear-hanging parts 20a are usually formed of different materials, and preferably the ear-hanging parts 20a are made of stretchable materials. Therefore, in the conventional configuration in which the mask body 10 and the ear-hanging parts 20a are directly joined, when a force is applied to the mask 1 due to stretching or the like of the ear-hanging parts 20a, there is a possibility that the mask body 10 cannot follow the elongation of the ear-hanging parts 20a and cannot maintain the joint, and the two will peel off from each other. In contrast, in this embodiment, the mask body 10 and the ear-hanging parts 20a are not directly joined, but an auxiliary material 30 is interposed to join the two, so that even if an excessive force is applied, the ear-hanging parts 20a, 20a are difficult to separate from the mask body 10, and thus a mask that is difficult to damage can be provided.

[0050] In addition, by using the auxiliary materials 30, 30, it is possible to avoid using a part of the ear-hanging parts 20a for fixing to the mask body 10. Therefore, compared with the case where the ear-hanging parts 20a are directly joined to the mask body 10, the ear-hanging parts 20a can move more freely relative to the mask body 10, and thus the position of the ear-hanging parts 20a relative to the ears when the ear-hanging parts 20a are worn on the ears can be set more freely.

[0051] Moreover, according to this embodiment, it is not necessary to use a large amount of adhesive or an adhesive that becomes too hard after curing in order to form a firm joint between the mask body 10 and the ear-hanging parts 20a. Therefore, the functions of the respective components are not hindered, and the softness of the mask can be maintained, and thus a mask with a good wearing feeling can be obtained.

[0052] (For the start-of-use operation and the wearing operation)

[0053] Next, the operations performed by the user to start using the mask will be described. At the start of using the mask, the user can pinch or hold a pair of ear-hanging parts 20a, 20a with both hands and stretch them in opposite directions, so that they can be unfolded outward in the left-right direction D2 (unfolding operation). As Figures 1 to 3 shown, when the pair of ear-hanging parts 20a, 20a are joined by a separable joint part 28, the joint is released to separate the ear-hanging parts 20a, 20a from each other (separation operation). If the joint part 28 is composed of stitch holes formed along the boundary line between the pair of ear-hanging parts 20a, 20a, the stitch holes can be broken to separate the two ear-hanging parts 20a, 20a along the boundary line. After that, the user can, while holding a pair of ear-hanging parts 20a, 20a respectively, as Figure 3 shown, open outward in the left-right direction D2 (indicated by arrows).

[0054] Figure 4 shows the state in which a pair of hanging portions 20a, 20a are opened outward in the left - right direction D2 from Figure 1 their state. In addition, Figure 5 shows Figure 4 a cross - sectional view taken along the line II - II of Figure 4 and Figure 5 As shown in

[0055] , when a pair of hanging portions 20a, 20a are opened, the hanging portions 20a, 20a flip, that is, the surfaces of the hanging portions 20a, 20a that face the main body 10 in the state before the start of use are exposed.

[0056] After the user respectively holds a pair of hanging portions 20a, 20a and opens them outward in the left - right direction D2, the mask main body 10 is arranged on the wearer's face such that the face on the face side of the mask main body 10 faces the wearer's face, and the hanging portions 20a, 20a are respectively hung on the wearer's ears.

[0056] In the state before the start of use ( Figures 1 to 3 ), a single - sheet - like pair of hanging portions 20a, 20a (hanging portion pieces 20) are overlapped and arranged on the mask main body 10. The pair of hanging portions 20a, 20a can overlap on either surface of the mask main body 10, but as shown in the illustrated manner, it is preferably overlapped on the outer surface of the mask main body 10. Thus, when wearing the mask 1, contact with the inner surface (the face - side surface) of the mask main body 10 can be reduced or substantially eliminated.

[0057] In Figures 1 to 3 the illustrated manner, a pair of hanging portions 20a, 20a are combined with the outer - surface side of the mask main body 10 (the side that is exposed to the outside when worn), and in the state before the start of use, they are arranged on the outer - surface side of the mask main body 10. Although the side on which the pair of hanging portions 20a, 20a overlap can be the inner - surface side (the face - side) of the mask main body 10, by being combined and arranged on the outer - surface side, when starting to use and unfolding the pair of hanging portions 20a, 20a, the possibility of touching the inner - surface side (the face - side) of the mask main body 10 can be reduced, and thus the mask can be worn hygienically.

[0058] For example, when the user wears the mask 1 by himself / herself, the mask 1 is arranged on his / her own face with the inner surface of the mask main body 10 facing his / her own face. While pressing the outer surface of the mask main body 10 with one hand, the other hand releases the combination of the hanging portions 20a, 20a at the joint 28, and one hanging portion 20a is hung on the ear. Then, after replacing the hand pressing the mask main body 10 with the other hand, the other hanging portion 20a can be hung on the ear with one hand.

[0059] In addition, for example, in a state where the outer side of the mask 1 is oriented vertically upward (the outer surface of the main body 10 is oriented vertically upward) and the mask 1 is placed, the user holds a pair of hanging portions 20a, 20a with both hands and opens them outward in the left - right direction D2. After that, while maintaining the state of holding the pair of hanging portions 20a, 20a, the mask 1 is moved toward the face of another wearer. After the mask main body 10 is disposed at a desired position on the wearer's face, without changing the holding method, the pair of hanging portions 20a, 20a can be respectively hung on the ears of the wearer. Therefore, the mask 1 of this method can be applied to the situation where, for example, children, patients, etc., who are difficult to wear masks by themselves, wear masks.

[0060] It should be noted that, as Figure 1 and Figure 2 shown, pinch portions 25, 25 that can be pinched by the user can be respectively formed on the hanging portions 20a, 20a. It is not particularly limited as long as the user can pinch the pinch portions 25, 25 during the separation action and / or the unfolding action, but it is preferably a shape that protrudes from the mask main body 10 in a top view, preferably protruding from the lower end of the mask main body 10. Thereby, the user can perform the separation action and the unfolding action hygienically without contacting or hardly contacting the mask main body 10. In addition, after wearing, the pinch portions 25, 25 can also be used to adjust the wearing state of the hanging portions 20a, 20a.

[0061] In the main body 10, a mark 18 that can distinguish the front and back (outer surface and inner surface) of the mask main body 10 can be formed by embossing, printing, sewing, etc. The mark 18 only needs to be visually recognizable by the user, and its method is not limited. As Figure 1 and Figure 2 shown, the mark 18 can be a character, or a number, a symbol, a graphic, a logo, etc. If the mark 18 is a character, the user can recognize the side on which the character can be correctly read as the outer surface.

[0062] (Joining between components)

[0063] In this method, the sheet - like hanging portion 20a overlaps with the sheet - like auxiliary material 30 and is joined by the first joining portion 50. In addition, the mask main body 10 overlaps with the sheet - like auxiliary material 30 and is joined by the second joining portion 60. Both the first joining portion 50 and the second joining portion 60 are formed by, for example, a device that joins the opposite surfaces of the components by applying pressure and / or heat, such as heat sealing, ultrasonic sealing, non - heated embossing, etc. Among them, from the perspective of achieving reliable joining, heat sealing is preferably used.

[0064] The combination of the mask body 10 and the ear hooks 20a, 20a (ear hook sheet 20) based on the first joint 50 and the second joint 60 can be formed by the following sequence. First, a combination of the ear hook 20a (or the ear hook sheet 20) and the auxiliary material 30 is formed. At this time, the auxiliary material 30 is arranged on the ear hook 20a with a misaligned position so that the outer edge (joining side edge) 21 of the ear hook 20a in the left-right direction D2 is located in the inner side of the left-right direction D2 than the outer edge 31 of the auxiliary material 30 in the left-right direction D2, and the ear hook 20a and the auxiliary material 30 are joined at the second joint 60 to form a combination. The combination is arranged on the mask body 10 so that the outer edge 21 of the ear hook 20a in the lateral direction D2 is located in the inner side of the lateral direction D2 than the outer edge 11 of the mask body 10 in the lateral direction D2, and preferably the outer edge 31 of the auxiliary material 30 is aligned with the outer edge 11 of the mask body 10. As a result, the vicinity of the end portion in the left-right direction D2 of the mask body 10 is in direct contact with the auxiliary material 30, and the first joint portion 50 is formed in the contact region. In this way, the joint portion between the mask body 10 and the ear hook 20a in the end portion in the left-right direction D2 of the mask 1 can be easily formed without complicated steps such as folding back.

[0065] like Figure 1 As shown, it is preferred that both the first joint part 50 and the second joint part 60 are formed continuously from the upper end to the lower end of the upper and lower direction D1. However, the configuration of the first joint part 50 or the second joint part 60, that is, the pattern or method of forming the joint in the first joint part 50 or the second joint part 60 is not particularly limited. However, from the viewpoint of ensuring both flexibility and bonding strength, it is preferred that both the first joint part 50 and the second joint part 60 are formed by a plurality of small joint parts.

[0066] Figure 6 An enlarged view of one second engaging portion 60 is shown. Figure 6 This corresponds to a state where the ear strap portion 20a is unfolded. Figure 5 The enlarged view of the local III. Figure 6 As shown, the second joint portion 60 has a plurality of small joint portions 65, 65, .... Since the plurality of small joint portions 65, 65, ... are formed separately from each other in the vertical direction D1, the flexibility of the mask 1 can be improved, especially when it is bent in the vertical direction D1. It is preferred that such small joint portions 65 are formed by welding by heat sealing or the like, thereby making it possible to increase the joint strength between the ear hook portion 20a and the auxiliary material 30, which is preferred.

[0067] exist Figure 6In the example, the length (width) in the left - right direction D2 of the joining small part 65 in the second joining part 60 corresponds to the width w2 of the second joining part 60. The width w2 of the second joining part 60 can be 3 - 10 mm. The width w2 does not need to be constant and can vary according to the location. By setting the width w2 within the above - mentioned range, a reliable joining can be formed between the hanging part 20a and the auxiliary material 30, and the softness of the entire mask 1 can be prevented from being impaired due to the hardening of the second joining part 60.

[0068] In addition, the pitch P in the up - down direction D1 of the joining small parts 65 in the second joining part 60 (the length in the up - down direction D1 from the center in the up - down direction D1 of one joining small part 65 to the center in the up - down direction D1 of an adjacent joining small part 65) can be 0.5 - 5.0 mm. In addition, the length L in the up - down direction D1 of one joining small part 65 can be 0.1 - 1.0 mm.

[0069] The shape of the joining small part 65 is not particularly limited and can be a rectangle having a long side in the left - right direction D2 ( Figure 6 ), or a rectangle other than a rectangle. Or, it can be a quadrilateral other than a rectangle, a polygon other than a quadrilateral, a circle, an ellipse, or any other arbitrary shape. However, as Figure 6 shown, if it is a shape that is long in the left - right direction D2 or a linear shape extending in the left - right direction D2, the second joining part 60 is particularly difficult to be damaged by the force that stretches the hanging part 20a in the left - right direction D2, so it is preferred. In the case where all or part of the joining small part 65 is linear, the aspect ratio of its shape, that is, (short side or minor axis) / (long side or major axis) can be 0.1 / 15.0 - 1.0 / 4.0.

[0070] Figure 7 In Figure 7 corresponds to the enlarged view of the partial III showing the state where the hanging part 20a is unfolded. The second joining part 160 includes a plurality of joining small parts 165, 165,... separated in the up - down direction D1 in the same way as the above - mentioned second joining part 60 ( Figure 5 ), but the difference from the second joining part 60 ( Figure 6 ) is that the joining small parts 165, 165,... reach the outer end edge (joining side edge) 21 in the left - right direction D2 of the hanging part 20a. It should be noted that in the Figure 6 and Figure 5 corresponding to the enlarged view of the partial III of Figure 6 and Figure 7 , the hanging part 20a is opened outward in the left - right direction D2, and the arrangement of the hanging part 20a is different from the state before the start of use ( Figure 1)It is reversed in the left - right direction D2, so that the outer edge (joint - side edge) 21 of the hanging ear part 20a in the left - right direction D2 is located on the central side (inner side) in the left - right direction D2. It should be noted that the outer edge 21 of the hanging ear part 20a in the left - right direction D2 refers to the edge on the outer side of the hanging ear part 20a in the left - right direction D2 in the state before the start of use, that is, the state before the hanging ear parts 20a, 20a are unfolded, and it is the edge on the side to be joined by the auxiliary material 30 at the end of the mask body 10 in the left - right direction D2.

[0071] Since a plurality of joining small parts 165, 165,... are separated from each other in the up - down direction D1, the flexibility of the mask 1, especially when it is bent in the up - down direction D1, can be improved. Preferably, such joining small parts 165 are formed by welding such as heat - sealing. Thus, the joining strength between the hanging ear part 20a and the auxiliary material 30 can be made large, so it is preferred.

[0072] In Figure 7 the length (width) of the joining small part 165 in the left - right direction D2 in the second joining part 60 corresponds to the width w2 of the second joining part 160. The width w2 of the second joining part 160 can be 3 - 10 mm. The width w2 does not have to be constant and can vary according to the location. By setting the width w2 within the above range, a reliable joint can be formed between the hanging ear part 20a and the auxiliary material 30, and the flexibility of the entire mask 1 can be prevented from being impaired due to the hardening of the second joining part 160.

[0073] In addition, the pitch P in the up - down direction D1 of the joining small parts 165 in the second joining part 160 (the length in the up - down direction D1 from the center of one joining small part 165 in the up - down direction D1 to the center of the adjacent joining small part 165 in the up - down direction D1) can be 0.5 - 5.0 mm. In addition, the length L of one joining small part 165 in the up - down direction D1 can be 0.1 - 1.0 mm.

[0074] The shape of the joining small part 165 is not particularly limited. It can be a rectangle with a long side in the left - right direction D2, or a rectangle other than a rectangle. Or it can be a quadrilateral other than a rectangle, a polygon other than a quadrilateral, a circle, an ellipse, or any other arbitrary shape. However, as Figure 7 shown, if it is a shape that is long in the left - right direction D2 or a linear shape extending in the left - right direction D2, the second joining part 160 is particularly difficult to be damaged by the force of stretching the hanging ear part 20a in the left - right direction D2, so it is preferred. When all or part of the joining small part 165 is linear, the aspect ratio of this shape, that is, (short side or minor axis) / (long side or major axis) can be 0.1 / 15.0 - 1.0 / 4.0.

[0075] As Figure 7As in the example shown, if the second joint portion 160 is formed in such a manner as to reach the outer edge 21 in the left-right direction D2 of the hanging ear portion 20a, and more preferably in such a manner that the hanging ear portion 20a straddles the outer edge 21 in the left-right direction D2, the area up to the outer edge 21 of the ear portion 20a can be reliably joined to the auxiliary material 30. When the second joint portion 160 does not reach the outer edge 21 in the left-right direction D2 of the hanging ear portion 20a (when the second joint portion 160 does not include the outer edge 21 of the hanging ear portion 20a), the area near the outer edge 21 of the hanging ear portion 20a may lift off from the auxiliary material 30 and warp. Then, the area near the outer edge 21 of the hanging ear portion 20a may bend or roll up and curl, and there is a possibility that the mask 1 becomes larger in volume in the thickness direction during storage. However, according to Figure 7 the example shown, the possibility can be reduced, enabling compact storage.

[0076] In addition, in the manner where the hanging ear portion 20a is joined to the outer surface side of the mask body 10 and the auxiliary material 30 is disposed outside the hanging ear portion 20a, the outer edge 21 of the hanging ear portion 20a is exposed to the outside during wearing and can be seen by people. Therefore, as described above, if the area near the outer edge 21 of the hanging ear portion 20a bends or rolls up, the aesthetics (aesthetic property) of the mask during wearing may sometimes be impaired. By reaching the outer edge 21 in the left-right direction D2 of the hanging ear portion 20a, the aesthetics can be improved. On the other hand, in the manner where the hanging ear portion 20a is joined to the inner surface side of the mask body 10 and the auxiliary material 30 is disposed inside the hanging ear portion 20a, sometimes the rolled-up outer edge 21 of the hanging ear portion 20a contacts the face and impairs the wearing feeling, and such inconvenience can be avoided.

[0077] It should be noted that the second joint portion reaching the outer edge 21 in the left-right direction D2 of the hanging ear portion 20a may include the case where the left-right edge of the second joint portion 60 is aligned with the outer edge 21 in the left-right direction D2 of the hanging ear portion 20a, or may include the case where the second joint portion 60 is formed in such a manner as to straddle the outer edge 21 in the left-right direction D2 of the hanging ear portion 20a. When the second joint portion is formed in such a manner as to straddle the outer edge 21 in the left-right direction D2 of the hanging ear portion 20a, the length v in the left-right direction D2 by which the second joint portion crosses the above outer edge 21 may be more than 0 to 3.0 mm.

[0078] Figure 8 Another modified example of the second joint portion is shown as the second joint portion 260. The second joint portion 260 has a plurality of joint sub-portions separated in the up-down direction D1, and is different from the second joint portion 160 ( Figure 7) are the same and reach the outer edge (joint side edge) 21 in the left-right direction D2 of the hanging ear part 20a. Therefore, also in this example, it is possible to prevent the area near the outer edge 21 of the hanging ear part 20a from being curled or bent. However, the second joint part 260 is different from the second joint part 160 ( Figure 7 ) in that the joint small parts are separated in the left-right direction D2.

[0079] More specifically, the second joint part 260 includes a column of a plurality of joint small parts 265, 265,... separated in the up-down direction D1, and a column of a plurality of joint small parts 266, 266,... separated from this column in the left-right direction D2 and separated in the up-down direction D1. Thus, the second joint part 260 is composed of a plurality of columns separated in the left-right direction D2, so that the flexibility when the hanging ear part 20a and the auxiliary material 30 are bent in the left-right direction D2 can be ensured, and the wearing feeling of the mask 1 can be improved.

[0080] Figure 9 As a further alternative modification of the second joint part, the second joint part 360 is shown. The second joint part 360 has a plurality of joint small parts separated in the up-down direction D1, and is the same as the second joint part 160 ( Figure 7 ) and the second joint part 260 ( Figure 8 ) in that it reaches the outer edge (joint side edge) 21 in the left-right direction D2 of the hanging ear part 20a. Therefore, also according to this example, it is possible to prevent the area near the outer edge 21 of the hanging ear part 20a from being curled or bent. In addition, in the second joint part 360, the joint small parts are separated in the left-right direction D2 in the same manner as the second joint part 260 ( Figure 8 ). However, the second joint part 360 is different from the second joint part 260 ( Figure 8 ) in that the composition of the joint small parts included in the column is different.

[0081] In one column of a plurality of joint small parts separated in the up-down direction D1 included in the second joint part 360, joint small parts with different lengths in the left-right direction D2 are alternately formed. That is, one joint small part column of the second joint part 360 (in Figure 9In the middle (the left column), there are a first engaging small portion 365a with a longer length in the left-right direction D2 and a second engaging small portion 365b with a shorter length in the left-right direction D2. The first engaging small portions 365a and the second engaging small portions 365b are alternately arranged with a separation in the up-down direction D1. Among them, the first engaging small portion 365a is formed in such a way as to reach the outer end edge 21 of the hanging ear portion 20a, preferably in such a way as to straddle the outer end edge 21 of the hanging ear portion 20a. On the other hand, the second engaging small portion 365b does not reach the outer end edge 21 of the hanging ear portion 20a. With this configuration, it is possible to ensure the effect of preventing the curling and bending of the area near the outer end edge 21 of the hanging ear portion 20a, and it is possible to prevent the second engaging portion 360 from becoming hard. In addition, compared with the configuration including engaging small portions with a constant length in the left-right direction D2 ( Figures 6 to 8 ), the designability can be improved.

[0082] Figure 10 As a further alternative modification of the second engaging portion, the second engaging portion 460 is shown. The second engaging portion 460 has a plurality of engaging small portions 465, 465,... separated in the up-down direction D1. Similar to the second engaging portion 160 ( Figure 7 ), it reaches the outer end edge (engaging side edge) 21 of the hanging ear portion 20a in the left-right direction D2. Therefore, according to this example, it is also possible to prevent the curling and bending of the area near the outer end edge 21 of the hanging ear portion 20a. However, the second engaging portion 460 is different from the second engaging portion 160 ( Figure 7 ) in that the spacing between the engaging small portions 465, 465,... included in the second engaging portion 460 is not constant but varies depending on the location.

[0083] The spacing between the plurality of engaging small portions 465, 465,... included in the second engaging portion 460 becomes smaller at the ends in the up-down direction D1 and larger at the center. During the wearing operation and when wearing the mask 1, the hanging ear portion 20a is stretched in the left-right direction D2, and at this time, force is particularly likely to be applied to the upper end portion and the lower end portion of the second engaging portion. Therefore, as Figure 10 shown, by previously setting the spacing of the engaging small portions 465 in the second engaging portion 460 to be smaller at the ends in the up-down direction D1, the engaging strength at the ends in the up-down direction D1 can be increased. On the other hand, by previously setting the spacing of the engaging small portions 465 to be larger at the center in the up-down direction D1 where the applied force to the second engaging portion 460 is smaller, the flexibility of the second engaging portion 460 can be maintained, and thus the flexibility of the mask 1 can be maintained.

[0084] It should be noted that it is preferable that the first engaging portion 50, which is the engaging portion between the mask main body 10 and the auxiliary material 30, is also formed throughout the up-down direction D1 in the same manner as the second engaging portion 60. The length (width) w1 of the first engaging portion 50 in the transverse direction D2 (Figure 1 ) It can be set to 3 to 10 mm. This width w1 does not have to be constant and can vary depending on the location. By setting the width w1 within the above range, a reliable joint can be formed between the mask body 10 and the auxiliary material 30, and it is possible to prevent damage to the overall softness of the mask 1 due to hardening of the first joint portion 50. In addition, it is possible to reduce discomfort and the like that occurs when the first joint portion 50 comes into contact with the face.

[0085] In the state before use, the first joint portion 50 and the second joint portion 60 can be joined when viewed from above, but it is preferably separated. The separation distance between the first joint portion 50 and the second joint portion 60 when viewed from above can be 1 to 15 mm.

[0086] Hereinafter, specific embodiments of the present invention will be described.

[0087] (Note 1)

[0088] The method of Note 1 includes: a mask body; a pair of sheet-like ear-hanging portions; and a sheet-like auxiliary material that intervenes in the combination of the mask body and the ear-hanging portions. At each end of the mask body in the left-right direction, the ear-hanging portions and the auxiliary material are overlapped on one side of the mask body. The outer end edges of the ear-hanging portions in the left-right direction are located inside the outer end edges of the mask body in the left-right direction and the outer end edges of the auxiliary material in the left-right direction. A first joint portion where the mask body and the auxiliary material are joined in the thickness direction and a second joint portion where the ear-hanging portion and the auxiliary material are joined in the thickness direction are formed. The second joint portion reaches the outer end edge of the ear-hanging portion in the left-right direction.

[0089] According to the method of Note 1 above, a sheet-like auxiliary material that intervenes in the combination of the mask body and a pair of sheet-like ear-hanging portions is provided. In other words, the pair of ear-hanging portions are respectively combined with the mask body through the auxiliary material. In such a configuration, it is possible to separately form the combination of the mask body and the auxiliary material and the combination of the ear-hanging portion and the auxiliary material, so that the combinations can be optimized according to the materials of the two components to be combined. Therefore, compared with the case where the ear-hanging portion and the mask body are directly combined, the wearing feeling is not impaired between the ear-hanging portion and the mask body, and in addition, a joint that is difficult to damage can be indirectly formed. Therefore, a mask with excellent wearing feeling and difficult to damage can be obtained.

[0090] Moreover, in this method, a first joint portion where the mask body and the auxiliary material are relatively joined, and a second joint portion where the ear loops and the auxiliary material are relatively joined are formed. The second joint portion reaches the outer edge in the left - right direction of the ear loops. Since the joining range of the ear loops and the auxiliary material extends to the outer edge of the ear loops, it is possible to prevent the portion near the outer edge of the ear loops that is not joined to the auxiliary material from lifting and separating from the auxiliary material. Therefore, it is possible to avoid the portion near the outer edge of the ear loops from curling and bending, and the volume of the mask becomes larger during storage.

[0091] (Note 2)

[0092] In the method of Note 2, the above - mentioned second joint portion is formed so as to straddle the above - mentioned outer edge in the left - right direction of the above - mentioned ear loops.

[0093] According to the method of Note 2 above, since the joining range of the ear loops and the auxiliary material crosses the outer edge of the ear loops, the above - mentioned effect of preventing the portion near the outer edge of the ear loops that is not joined to the auxiliary material from separating from the auxiliary material can be enhanced.

[0094] (Note 3)

[0095] In the method of Note 3, the above - mentioned second joint portion is formed by welding the above - mentioned ear loops and the above - mentioned auxiliary material.

[0096] According to the method of Note 3 above, through the joining based on welding, the joining strength between the ear loops and the auxiliary material can be improved.

[0097] (Note 4)

[0098] In the method of Note 4, the above - mentioned second joint portion includes a plurality of small joint portions formed separately in the up - down direction orthogonal to the above - mentioned left - right direction.

[0099] According to the method of Note 4 above, the joining parts of the ear loops and the auxiliary material in the second joint portion are dispersed, so that the second joint portion does not become overly hard, and flexibility can be ensured.

[0100] (Note 5)

[0101] In the method of Note 5, the above - mentioned plurality of small joint portions are formed separately in the above - mentioned left - right direction.

[0102] According to the method of Note 5 above, by separating the small joint portions in the left - right direction, the above - mentioned effect of preventing the outer edge of the ear loops in the left - right direction from lifting can be obtained, and the movement of the ear loops becomes freer, so that an excellent wearing feeling can be obtained.

[0103] (Note 6)

[0104] In the manner of Note 6, the plurality of joining portions include a first joining portion that straddles the left and right outer edges of the hanging portion in the left and right direction, and a second joining portion that does not reach the outer edge. The first joining portion and the second joining portion are arranged in the up and down direction.

[0105] According to the manner of Note 6 above, by the first joining portion that straddles the left and right outer edges of the hanging portion, it is possible to prevent the portion near the outer edge of the hanging portion from lifting from the auxiliary material, and by the second joining portion that does not reach the left and right outer edges of the hanging portion, the flexibility of the second joining portion can be improved.

[0106] (Note 7)

[0107] In the manner of Note 7, the pitch of the joining portions formed at the upper and lower ends in the up and down direction is smaller than the pitch in the up and down direction of the joining portions formed at the center in the up and down direction.

[0108] When wearing the mask, when the hanging portion is stretched substantially in the left and right direction, the force is particularly likely to be applied to the upper end portion and the lower end portion in the up and down direction of the second joining portion. Therefore, according to the manner of Note 7 above, instead of setting the pitch of the joining portions to be small as a whole, the pitch of the joining portions is set to be narrower at the upper and lower ends in the up and down direction of the second joining portion, so that the joining strength can be effectively improved.

[0109] This application claims the priority of the basic application No. 2020-130070 filed with the Japan Patent Office on July 31, 2020, and the entire content thereof is incorporated herein by reference.

[0110] Explanation of reference numerals

[0111] 1 Mask

[0112] 2 First surface material

[0113] 3 Second surface material

[0114] 5 Stretchable film (stretchable member)

[0115] 10 Mask body

[0116] 15 Pleat

[0117] 20 Hanging portion piece

[0118] 20a Hanging portion

[0119] 21 Left and right outer edges of the hanging portion

[0120] 25 Pinching portion

[0121] 28 Separable joining portion

[0122] 29 Opening

[0123] 30 Auxiliary material

[0124] 31 Outer end edge of the auxiliary material in the left - right direction

[0125] 50 First joint

[0126] 60, 160, 260, 360, 460 Second joint

[0127] 65, 165, 265, 266, 365a, 365b, 366, 465 Small joint part of the second joint

Claims

1. A mask, comprising: A mask body; A pair of sheet-like ear-hanging parts; And A sheet-like auxiliary material that intervenes in the combination of the above-mentioned mask body and the above-mentioned ear-hanging parts. At each end of the mask body in the left-right direction, the ear-hanging parts and the auxiliary material are overlapped on one side of the mask body. The outer end edges of the ear-hanging parts in the left-right direction are located at positions closer to the inside than the outer end edges of the mask body in the left-right direction and the outer end edges of the auxiliary material in the left-right direction. A first joint part where the mask body and the auxiliary material are joined in the thickness direction, and a second joint part where the ear-hanging parts and the auxiliary material are joined in the thickness direction are formed. The second joint part reaches the outer end edge of the ear-hanging part in the left-right direction. The mask is configured such that, in the state before the start of use, the outer end edges of the ear-hanging parts in the left-right direction are sandwiched between the mask body and the auxiliary material.

2. The mask according to claim 1, wherein The second joint part is formed in a manner that straddles the outer end edge of the ear-hanging part in the left-right direction. The mask is configured such that, when worn, the auxiliary material is folded back, so that the first joint part is sandwiched between the second joint part and the mask body.

3. The mask according to claim 1 or 2, wherein The second joint part is formed by welding the ear-hanging part and the auxiliary material.

4. The mask according to claim 1 or 2, wherein The second joint part includes a plurality of joint sub-parts separated in the up-down direction orthogonal to the left-right direction.

5. The mask according to claim 4, wherein The plurality of joint sub-parts are separated in the left-right direction.

6. The mask according to claim 4, wherein The plurality of joint sub-parts include a first joint sub-part that straddles the outer end edge of the ear-hanging part in the left-right direction and a second joint sub-part that does not reach the outer end edge. The first joint sub-part and the second joint sub-part are arranged in the up-down direction.

7. The mask according to claim 4, wherein The pitch of the joint sub-parts formed at the ends in the up-down direction is smaller than the pitch in the up-down direction of the joint sub-parts formed at the center in the up-down direction.

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