TW202233277A - Method for producing ear hook member for mask, apparatus for producing ear hook member for mask, method for producing mask, and mask - Google Patents

Abstract

The present invention provides a method for producing an ear hook member for a mask, the method including: stretching a stretchable member so as to have tension in a predetermined direction; laying a non-stretchable overlay on at least one surface of the stretchable member while keeping the tension; joining the stretchable member and the overlay together to obtain a joined member; loosening the joined member in the predetermined direction to achieve a predetermined loose state, in which the tension is reduced; and punching the joined member in the predetermined loose state into a predetermined shape.

Description

Manufacturing method of ear loop member for mask, manufacturing device of ear loop member for mask, manufacturing method of mask, and mask

The present invention relates to a manufacturing method of an ear-hook member for a mask, a manufacturing device of the ear-hook member for a mask, a manufacturing method of a mask, and a mask.

As a structure of a mask to be worn on the face, it is known to include: a mask body that at least partially covers the wearer's face; and a pair of ear hooks that can be hung in order to hold the mask body in the wearing position A member on each ear of the wearer, which is respectively attached to the mask body.

Conventionally, the earhook member (earhook portion) used for the mask is mostly in the form of a belt. However, in order to reduce the load applied to the ear, a sheet-shaped earhook member has also been studied. For example, the mask disclosed in Patent Document 1 is provided with a single-sheet ear loop piece, and both ear loop portions thereof extend on the same plane in a state of being connected to each other by a connecting portion.

Further, in recent years, the demand for masks has increased, and various users of men, women and children need to use masks. In response to this situation, it is required to manufacture ear-hook members of various structures in accordance with the size, shape, and preferred usability of the user's face.

[Prior Art Literature] (patent literature) Patent Document 1: Japanese Patent No. 5762803

[Problems to be Solved by Invention] The mask disclosed in Patent Document 1 uses a non-woven fabric sheet as the ear loop sheet, which is easier to stretch in the direction intersecting the extending direction of the long side than in the extending direction of the long side. In addition, in the production line, the ear loop piece tape is conveyed in the longitudinal direction, punched out, and joined to the mask body. However, in this method, when the design (size, shape, etc.) of the ear loop member is to be changed, it is necessary to change the punching die itself, which takes cost and time. It is not easy to manufacture ear loops of various structures. Therefore, a method of manufacturing a mask that can easily change the design is desired.

One aspect of the present invention developed in view of the above-mentioned circumstances has a problem to be solved to provide a method of manufacturing an ear loop member for a mask whose design is easy to change.

[Technical means to solve the problem] One aspect of the present invention is a method of manufacturing an ear loop member for a mask, comprising the steps of: extending the stretchable member in a predetermined direction so as to generate tension, and maintaining the tension while maintaining the tension on the non-stretchable surface A material is overlapped on at least one surface of the stretchable member, and the stretchable member and the surface material are joined to obtain a joined body, and the joined body is relaxed in the predetermined direction to obtain a predetermined shape after reducing the tension. relaxation state, and punching the bonded body in the predetermined relaxation state into a predetermined shape.

[effect] According to an aspect of this invention, the manufacturing method of the earhook member for masks with easy design change can be provided.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, in each figure, unless otherwise stated, the same code|symbol may be attached|subjected about the same or corresponding structure, and description may be abbreviate|omitted. In addition, the drawings are schematically shown in order to facilitate the understanding of the invention.

One aspect of the present invention relates to an ear loop for a mask. Moreover, another aspect of this invention relates to the mask provided with the ear loop part for masks of this type. Hereinafter, the basic structure of the mask in this form is demonstrated first.

(Basic structure of mask) The mask in this form may be a mask capable of covering the wearer's face, more specifically, a mask capable of covering at least the nose and mouth of the wearer. According to the mask of this aspect, the function of preventing foreign matter from reaching the face or the function of preventing the scattering of droplets generated from the wearer can be obtained, and it is also called a hygienic mask or a medical mask. This form is suitable for use as a disposable mask, but can also be used as a mask that can be used repeatedly by washing or the like.

FIG. 1 shows a plan view of the mask 1 . 1 : is the figure which looked at the mask 1 from the outer surface side, ie, the side exposed to the outside without facing the face when wearing. Moreover, FIG. 2 shows the plan view which looked at the mask from the inner surface side (face side). FIG. 3 is a cross-sectional view taken along the line I-I in FIG. 1 .

As shown in FIG. 1 , according to the mask 1 of the present form, the mask body 10 is provided with: a mask body 10, which is arranged in front of the wearer's face when worn, and can mainly cover the wearer's nose and mouth; and a pair of ear loops The parts 20a, 20a are combined with the mask body 10. The mask body 10 has: a longitudinal direction D1, which corresponds to the up-down direction of the wearer's face when worn; and a lateral direction D2 (the direction corresponding to the left-right direction of the wearer's face when worn), which is orthogonal to the longitudinal direction D1 . In the form of FIG. 1, the mask body 10 has a rectangular plan view shape with long sides in the lateral direction D2, but the plan view shape of the mask body 10 is not limited to the shape shown in the figure.

As shown in FIGS. 1 and 2 , the mask body 10 has a gather structure 15 formed by a plurality of folds ( gathers ) arranged in a row in the longitudinal direction D1 . The pleats of the gather structure 15 are formed by folding the sheet constituting the mask body 10 several times on the folding line along the transverse direction D2. And the side part (horizontal D2 edge part) of the mask main body 10 is being fixed in the state in which the several folds were formed. Therefore, when using the mask 1, the folds of the pleated structure 15 are expanded in the longitudinal direction D1, whereby the center of the lateral direction D2 is bent so as to protrude toward the outer surface side of the mask 1, and can be deformed into a three-dimensional shape suitable for the face. shape. The specific structure of the gather structure 15 is not particularly limited, and a well-known structure formed in the mask body may be used.

As shown in FIGS. 1 and 2 , a pair of ear-hook parts 20 a and 20 a are arranged on the outer surface of the mask body 10 . As shown in FIG. 1 , the ear hook portions 20a are each in a ring shape (or a closed band shape) in plan view, or may have a shape including a ring. When wearing, the earhook portion 20a can be hung on the ear so that the wearer's ear can enter the inner side of the ring of the earhook portion 20a, that is, the opening 29 in the center of the earhook portion 20a.

The pair of earhook portions 20a and 20a may be constituted as a single sheet-like earhook member (earhook portion piece) 20 that is detachably coupled to each other at the center of the lateral direction D2. In this specification, the so-called "sheet-like" or "sheet" refers to a shape whose length and width are larger than thickness and which extend or extend on a plane. Therefore, the pair of earhook parts 20a and 20a in this embodiment is different from the band-shaped or linear-shaped earhook parts. The pair of ear-hook parts 20a and 20a are configured as ear-hook part pieces 20, whereby when the ear-hook part 20a is hung on the ear when the mask is worn, the ear-hook part 20a can be in contact with the back of the earlobe, so It is possible to reduce the load applied to the ear and its peripheral parts, and reduce discomfort and pain.

The coupling form of the separable coupling portion 28 of the pair of ear hook portions 20a and 20a is not particularly limited, and is preferably a coupling that can be separated and pulled by the user's normal force. For example, as shown in FIG. 1 , discontinuous notches (cuts) can be formed as perforated eyelines. In addition, the joint portion 28 may be formed by reducing the thickness of the sheet material or other means to weaken the boundary between the pair of ear hook portions 20a and 20a or to easily apply stress instead of perforating the eyeliner.

The mask body 10 may have a multilayer structure in which a plurality of layers are stacked. For example, it may be a structure including at least three layers in which an outer layer and an inner layer sandwich an intermediate layer that enhances the function of trapping foreign substances (dust, pollen, bacteria, viruses, etc.). The layers constituting the mask body 10 are preferably fiber-containing layers including non-woven fabrics, fabrics, and knitted fabrics, and more preferably include non-woven fabrics. As the nonwoven fabric, a spunbond nonwoven fabric, a spunlace nonwoven fabric, a meltblown nonwoven fabric, a hot air nonwoven fabric, a point-bonded nonwoven fabric, and the like can be mentioned. Moreover, it is preferable to use the melt-blown nonwoven fabric obtained by containing fine fibers as an intermediate layer. Moreover, it is preferable that the fiber which comprises a fiber-containing layer is a resin fiber, and polyethylene, a polypropylene, a polyethylene terephthalate, nylon etc. are mentioned as a kind of resin of a resin fiber. The basis weight of the outer layer and the inner layer may be 10-50 g/m ² , preferably 15-50 g/m ² . The basis weight of the intermediate layer having high foreign matter trapping properties is preferably 10 to 100 g/m ² , more preferably 15 to 50 g/m ² .

The pair of ear-hook parts 20a, 20a are respectively coupled to the side parts (ends in the transverse direction D2) of the outer surface of the mask body 10. That is, the pair of ear-hook parts 20a, 20a are respectively joined at the outer ends of the lateral direction D2 of the mask body 10, and the other parts of the pair of ear-hook parts 20a, 20a are not joined to the mask body 10. In addition, in the form of FIG. 1, a pair of ear-hook part 20a, 20a is connected to the both sides of the mask main body 10 via auxiliary materials 30, 30, respectively. The auxiliary materials 30 and 30 may be sheet-like members extending along the longitudinal direction D1 of the mask 1 . Moreover, the auxiliary materials 30 and 30 are joined to both ends in the lateral direction D2 of the mask body 10 at the outer joint parts 50 and 50, respectively. In addition, the auxiliary members 30 and 30 are joined to both ends in the lateral direction D2 of the earloop portion sheet 20 at the inner joint portions 60 and 60, respectively. Therefore, for the outer joint portion 50 of the auxiliary material 30 and the mask body 10, and for the inner joint portion 60 of the auxiliary material 30 and the earhook piece 20, the most appropriate joint form can be selected respectively. When the 20 is directly connected to the mask body 10, a stronger mask 1 can be obtained. The auxiliary material 30 may have stretchability, but is preferably smaller than the stretchability of the earhook portion sheet 20 .

When starting to use the mask 1 according to the present form, the user, before wearing the mask 1, releases the coupling of the separable coupling portion 28 between the pair of ear hook portions 20a, 20a, and makes the ear hook portions 20a, 20a They are separated from each other, and the parts of the ear hook parts 20a and 20a that are not joined to the mask body 10 are opened to the lateral D2 side. This separation, deployment, and structure associated with these actions are described below.

(Separation/deployment of the ear hook) When using the mask 1 shown in FIG. 1, a user can hold or hold a pair of earhook parts 20a and 20a with a hand, respectively, and can pull mutually in the opposite direction. Thereby, first, the coupling of the separable coupling portion 28 can be released. Then, the user can open each of the pair of earhook portions 20a and 20a to the outside (to the side) in the lateral direction D2, respectively.

Fig. 4 is a view showing a pair of ear-hook portions 20a, 20a of the mask 1 of Fig. 1 being developed sideways. 5 shows a cross-sectional view taken along the line II-II in FIG. 4 . As shown in FIGS. 4 and 5 , when the pair of ear hooks 20a and 20a are opened, the ear hooks 20a and 20a are turned over, and the surface facing the mask body 10 is exposed. Also, almost the entire outer surface of the mask body 10 is exposed.

A pair of ear hooks 20a, 20a can be arranged on the outer surface side of the mask body 10, and also can be arranged on the inner surface side, as shown in FIGS. 1 to 5 , it is preferably arranged on the outer surface side of the mask 1. If the pair of earhook parts 20a, 20a are arranged on the outer surface side of the mask body 10, when the pair of earhook parts 20a, 20a are released from each other and separated from each other and opened outward in the lateral direction D2, the touch can be reduced. The possibility of reaching the inner surface of the mask body 10 or avoiding the possibility is preferable from the viewpoint of hygiene.

According to the mask 1 of this aspect, it can be used as follows. For example, in the state where the mask body 10 is placed with the outer surface of the mask body 10 facing up, the user can hold the pair of ear hooks 20a and 20a with their hands and open them outward in the lateral direction D2, while still holding the pair of ear hooks 20a and 20a In the case of the hanging parts 20a and 20a, the mask 1 is moved to the face of another person (wearer). After disposing the mask body 10 at a desired position on the face of the other person, the pair of ear-hook parts 20a and 20a can be respectively hung on the ears of the other person without changing the holding method. Thereby, according to the mask 1 of this aspect, even when a mask is worn on the face of a person who is difficult to wear a mask by himself, such as a child or a patient, it can be used appropriately.

Further, as shown in FIG. 1 , the pair of ear-hook parts 20 a and 20 a may be formed with pinch parts 25 and 25 , and the user separates the pair of ear-hook parts 20 a and 20 a from each other and moves outward in the lateral direction D2 When opened, the grips 25, 25 can be pinched. The gripping parts 25, 25 protrude from the edge of the mask body 10 when viewed from above, preferably from the lower end of the mask 1 (or the lower end of the mask body 10). The gripping parts 25, 25 protrude from the end edge of the mask body 10, whereby the mask body 10 itself, that is, either the outer surface or the inner surface of the mask body 10, is not touched or hardly touched. The user can hold the pinch portions 25, 25 with both hands. Furthermore, the user can separate and unfold the pair of ear hook portions 20a, 20a without touching or hardly touching the mask body 10. Thereby, even when the user cannot sufficiently take care of the hygiene of the fingers, the user can wear the mask 1 in a good hygienic state on himself or others. Furthermore, when the grip portion 25 protrudes from the end edge of the mask body 10, the maximum length of the longitudinal direction D1 of the protruding portion is preferably 5 to 20 mm, more preferably 8 to 15 mm.

In addition, the earhook portion 20a has the grip portions 25 and 25, whereby the user can easily grasp the grip portions 25 and 25 when or after the earhook portion 20a is hooked on the wearer's ear. Carry out the adjustment of the ear hook. That is, the holding parts 25 and 25 can be pinched, the earhook part 20a can be moved relative to the ear in the outer peripheral direction of the earhook part 20a to adjust the position, or the earhook part 20a can be pulled or loosened toward the rear side. Adjust the degree of tension of the ear hook portion 20a.

In this embodiment, the pair of ear hooks 20a and 20a are not connected to the inner surface (face side) of the mask body 10 but are respectively connected to both sides of the outer surface (Fig. 1, Fig. 3 to Fig. 5, etc.), so When wearing the mask 1, that is, in the state where the ear hooks 20a and 20a are opened to the side and hung on the ears, both sides of the mask body 10 are pressed from the outer surface side to the face by the ear hooks 20a. department. Thereby, the gap between the mask body 10 and the face on both sides of the mask body 10 can be narrowed, so that the functions of the mask, such as the function of blocking foreign objects and the function of preventing the droplets coughed up by the wearer from scattering, can be improved. Wait. In addition, the earhook portions 20a are not arranged on the inner surface side (face side) of the both sides of the main body, so during wearing, the earhook portions 20a do not directly contact the wearer's face on both sides of the mask main body 10, Also reduces discomfort.

Furthermore, the marks 18 that can distinguish the outer surface and the inner surface of the mask body 10 can also be formed on the mask body 10 by embossing, printing, sewing or the like. The shape of the mark 18 is not particularly limited as long as the user can visually or touch the inner and outer surfaces. As shown in FIG. 1 and the like, the marks 18 may be letters, numbers, symbols, figures, signs, or the like.

(Ear Hook Components) The earhook member (earhook portion piece) 20 or the earhook portions 20a and 20a in this embodiment has stretchability or elasticity at least in the lateral direction D2. FIG. 6 is a partially enlarged cross-sectional view of the earloop portion sheet 20 . FIG. 6( a ) shows a state (natural state) in which no external force is applied to the earloop portion sheet 20 , and FIG. 6( b ) shows a state in which the earloop portion sheet 20 is stretched outward in the lateral direction D2 .

As shown in FIG. 6 , the ear loop portion sheet 20 may be a laminated sheet formed by laminating a plurality of layers. In the example shown in FIG. 6 , the earhook sheet 20 includes the stretchable member 5, and the first surface material 2 is arranged on one surface of the stretchable member 5, that is, the first surface, and the first surface material 2 is disposed on the opposite side of the first surface. The second surface material 3 is arranged on the surface, that is, the second surface. Both surface materials may be non-stretchable. The elastic member 5, the 1st surface material 2, and the 2nd surface material 3 are joined by the joining parts 4, 4, . . . arranged to be spaced apart. The earhook sheet 20 may be constituted by a combination of the stretchable member 5 and a non-stretchable surface material arranged only on one side of the stretchable member 5, but when the surface material is arranged on both sides , which is preferable from the viewpoint of skin feel. Manufacture of the earloop portion sheet 20 will be described in detail later, in which a non-stretchable surface material is arranged in a state in which the stretchable member 5 is stretched, and the expansion and contraction are released after being joined by the joining portions 4, 4, . . . The stretched state of the elastic member 5 (the elastic member 5 is relaxed). Therefore, in a state where no external force is applied to the earhook portion sheet 20, folds are generated in the surface materials (the first surface material 2 and the second surface material 3) ( FIG. 6( a )). In addition, the direction in which the elastic member 5 is extended may be a direction including a component in the width direction (horizontal direction) D2 when disassembled, and is preferably the width direction (horizontal direction) D2.

The stretchability of the earhook portion 20a is mainly due to the fact that the earhook portion 20a has the stretchable member 5 . Furthermore, the "stretchability" of the stretchable member 5 can be extended in at least one direction by applying a tensile force to it, and can be restored to the original state by releasing the applied tensile force (a state in which no external force is applied). The nature of length (natural length).

In the example of FIG. 6 , a stretchable film can be used as the stretchable member 5 , that is, a continuous film-shaped molded body having a substantially uniform thickness can be used as the stretchable member 5 . However, instead of the stretchable film, a linear stretchable assembly in which a plurality of linear stretchable bodies (or linear elastic bodies) such as a plurality of rubber threads are arranged side by side may be used, or a stretchable hot-melt adhesive may be used. The stretchable hot-melt adhesive may be arranged in a linear shape or a planar shape. However, the stretchable film is preferable because it can impart high stretchability or extensibility to the earloop member (earloop portion sheet) 20 compared to other stretchable members such as linear stretchable bodies. Moreover, the handling at the time of manufacture of a stretchable film is also easy.

As a material of a stretchable film, polyolefins, such as polyethylene and polypropylene; polyurethane, etc. are mentioned. The stretchability of the stretchable film is preferably such that the maximum elongation is 3.5 to 4.0 times the natural length in the measurement by a tensile tester. In addition, the stretchable film may have a function of allowing moisture to pass through.

The surface material (when the surface material is provided on both sides of the stretchable member 5, the first surface material 2 and/or the second surface material 3) is preferably a fiber structure. Examples of the fiber structure include non-woven fabrics, woven fabrics, and knitted fabrics, and among these, non-woven fabrics are preferred because they have good skin feel and air permeability and contribute to the improvement of wearing feeling. As the nonwoven fabric, hot air nonwoven fabric, spunbond nonwoven fabric, spunlace nonwoven fabric, needle punched nonwoven fabric, chemical bonded nonwoven fabric, and the like can be mentioned. Among them, a spunbond nonwoven fabric that does not fluff and has high strength, a hot air nonwoven fabric having flexibility, and the like can be appropriately selected. In addition, the fibers contained in the nonwoven fabric are preferably resin fibers, and examples of the resin type of the resin fibers include polyethylene, polypropylene, polyethylene terephthalate, nylon, and the like. When the surface material is a non-woven fabric, the basis weight of the non-woven fabric may be 5 to 50 g/m ² , particularly preferably 8 to 25 g/m ² . When the surface material is arranged on both surfaces of the elastic member 5, the first surface material 2 and the second surface material 3 may be the same or different.

(Manufacturing method of earhook member, and manufacturing apparatus) One aspect of the present invention relates to a method of manufacturing an ear loop member for a mask. According to the manufacture method of the ear loop member for mask of this form, it comprises the following steps: (a) an extending step of extending the stretchable member in a predetermined direction so that tension can be generated; (b) an arrangement step of stacking a non-stretchable surface material on at least one of the stretchable members while maintaining the generated tension (c) a joining step of joining the stretchable member and the surface material to obtain a joined body; (d) a relaxation step of relaxing the joined body in a predetermined direction of elongation to obtain a predetermined relaxed state after reducing the tension; and , (e) punching step, punching the joint body in a relaxed state (predetermined relaxed state) into a predetermined shape.

Moreover, one aspect of this invention relates to the manufacturing apparatus of the earhook member for masks. According to the manufacturing device of the ear loop member for masks of this form, it comprises the following means: (A) extension means for extending the elastic member in a predetermined direction so that tension can be generated; (B) lamination means for stacking a non-stretchable surface material on at least one of the elastic members while maintaining the tension generated (C) a joining means for joining the stretchable member and a surface material to obtain a joined body; (D) a relaxation means for relaxing the joined body in a predetermined direction of elongation to make a predetermined relaxed state after reducing the tension; and , (E) punching means for punching the joint body in a relaxed state (predetermined relaxed state) into a predetermined shape. The manufacturing apparatus of the ear loop member for masks may be comprised as a part of the manufacturing apparatus of a mask, and may be comprised independently.

7 : has shown the schematic diagram of the mask manufacturing apparatus 300 including the manufacturing apparatus 100 of the ear loop member for masks, and the mask member assembly apparatus 200. As shown in FIG. 7, the manufacturing apparatus 100 of the ear loop member for masks is arrange|positioned upstream of the mask manufacturing apparatus 300. The ear-hook members for masks manufactured by the manufacturing device 100 of the ear-hook members for masks are combined with other members of the masks in the mask-member assembly device 200 to obtain the final product, that is, the masks.

The manufacturing apparatus 100 of the earhook member may be provided with: elastic member tape supply means 123 for supplying the elastic member tape 5A of the elastic member 5 after supply; and first surface material tape supply means 121 for supplying the elastic member tape The 1st surface material tape 2A of the 1st surface material 2; and the 2nd surface material tape supply means 122 for supplying the 2nd surface material tape 3A which becomes the 2nd surface material 3 later. The elastic member tape 5A, the first surface material tape 2A, and the second surface material tape 3A, which are elongated raw materials supplied from each supply means, are supplied to the lamination means 130 . Next, in the lamination means 130, the first surface material tape 2A is superimposed on one surface (first surface) of the elastic member tape 5A, and the second surface material tape 3A is superimposed on the other surface of the elastic member tape 5A. A layered body (multilayer structure) 6A is formed on one surface (second surface). The layered body 6A is conveyed in the conveyance direction Dt.

Here, the stretchable member tape 5A is extended in the conveyance direction Dt by the extending means 120, and is conveyed in this extended state, that is, in a state where an external force (tensile force) is applied in the conveyance direction Dt. In other words, stress (tensile stress) against external force is generated in the elastic member belt 5A. In this specification, both the above-mentioned tensile force and the above-mentioned tensile stress may be referred to as tension. In this way, the elastic member tape 5A is laminated by the first surface material tape 2A and the second surface material tape 3A (which may be collectively referred to as a surface material tape) while maintaining the state (extended state) in which the first tension force t1 is generated. In addition, the conveyance direction Dt is the direction corresponding to the lateral direction D2 of the obtained earhook member (earhook portion piece) 20 .

The first tension t1 of the elastic member tape 5A or the degree of elongation of the elastic member tape 5A is controlled by the unwinding speed of the elastic member tape supply means 123 and the conveying means (not shown). The elastic member tape 5A is preferably elongated, for example, 1.5 to 4.0 times the natural length, and more preferably 2.0 to 3.0 times the natural length. On the other hand, 2A of 1st surface material tapes and 3 A of 2nd surface material tapes can be conveyed in the state (state which is not stretched) which has a natural length. By adjusting the first tension t1 or the degree of elongation of the elastic member band 5A, the elastic properties (for example, the maximum elongation length, etc.) of the earhook member 20 can be easily changed. Thereby, even if the material of the elastic member 5 or the elastic member band 5A, and the material of the surface material or the surface material band are not changed, the earhook member 20 having different elastic properties can be obtained, and the user can be manufactured. The earhook member 20 for various requirements.

The above-mentioned laminated body 6A is fed to the joining means 140 , the elastic member tape 5A and the first surface material tape 2A are joined, and the elastic member tape 5A and the second surface material tape 3A are joined. This joining is performed by forming discontinuous joining portions 4, 4, . . . over the entire layered body 6A. The bonding in the bonding means 140 is preferably ultrasonic welding, thermal welding, or the like. The discontinuous plural joint portions 4 , 4 , . . . are formed, for example, in a point shape in a plan view. In the bonding means 140 , the layers of the layered body 6A are bonded, whereby the bonded body 8A can be obtained ( FIG. 6( b ), an enlarged view of part III of FIG. 7 ).

In the joint body 8A, the joint parts 4, 4, . Between the belt 5A and the first surface material belt 2A, and between the elastic member belt 5A and the second surface material belt 3A, it is formed intermittently. Furthermore, the reference diameter of one joint portion 4 in plan view may be 0.2 to 1.0 mm. In addition, the area of the joint portions 4, 4, . . . in plan view may be 1.8 to 19.1% of the sheet area.

The joint body 8A is fed to the subsequent relaxation means 160 . In the relaxation means 160, the tension in the conveyance direction Dt originally generated in the elastic member belt 5A is reduced, and a predetermined relaxation state having a second tension t2 smaller than the initial first tension t1 can be created. Here, the second tension t2 may be smaller than the first tension t1, and may be zero (0≦t2<t1). That is, even after the joined body 8A has passed through the relaxation means 160, it may be in a state (natural state) in which no tension is generated.

When the tension|tensile_strength which generate|occur|produces in the elastic member tape 5A falls, the length of the elastic member tape 5A will shorten in the conveyance direction Dt. However, since the first surface material tape 2A and the second surface material tape 3A are non-stretchable and connected only by the intermittently arranged joint portions 4, 4, ..., the first surface material tape 2A and the second surface material tape The parts other than the joint parts 4 , 4 , . . . of the material tape 3A relax from the surface of the elastic member tape 5A without following the elastic member tape 5A. Therefore, on the first surface material tape 2A and the second surface material tape 3A, there are formed earloop portion sheet tapes 20A in which a plurality of earloop portion sheet tapes extending in the direction orthogonal to the conveyance direction Dt are formed. Small folds arranged in the conveying direction Dt. In other words, on the first surface sheet tape 2A and the second surface sheet tape 3A arranged in the ear loop portion sheet tape 20A, continuous unevenness is formed along the conveyance direction Dt, respectively ( FIG. 6( a ). ), enlarged view of part IV of Figure 7).

The method of adjusting the degree of reduction of the tension in the relaxation means 160 (the degree of relaxation of the joined body 8A) or the method of adjusting the second tension t2 obtained by the relaxation means 160 is not particularly limited. For example, the upstream roll 161 and/or the downstream roll 162 included in the relaxation means 160 are configured as a pair of rolls, and the pressing force between the rolls included in the pair of rolls can be changed, and the upstream roll 161 and/or can be changed. or frictional resistance between the downstream roller 162 and the engaging body 8A. Alternatively, the tension applied to the joined body 8A may be adjusted at a position upstream before entering the relaxation means 160 . However, in the relaxation means 160, it is preferable to provide a tension adjustment member in addition to the upstream roller 161 and/or the downstream roller 162 which are mainly responsible for the role of conveyance. The tension adjustment member can be configured as a tension adjustment roller 165, for example, as shown in FIG. 7 .

The tension adjustment roller 165 is a member which can adjust the conveyance distance of 8 A of joined bodies by changing the position. The tension adjustment roller 165 can move in an arbitrary direction (in an arbitrary direction with respect to the surface direction of the joined body 8A) with respect to the conveyance direction Dt. In addition, the position after the movement of the tension adjustment roller 165 may be fixed by a bolt or the like. The tension adjustment roller 165 can be moved up and down (perpendicular to the surface direction of the joint body 8A) and/or left and right (parallel to the surface direction of the joint body 8A and relative to the other members in the relaxation means 160 ). The conveying direction Dt moves vertically, preferably at least up and down. By moving the tension roller 165 upward or downward, the joined body 8A can be pressed down or pushed up, and thus the conveyance distance of the joined body 8A in the relaxation means 160 can be easily increased or shortened.

FIG. 8 shows a schematic enlarged view of the relaxation means 160 including the tensioning roller 165 . The dancer roller 165 is arranged between the upstream roller 161 and the downstream roller 162 . In the state shown to Fig.8 (a), between the upstream roller 161 and the downstream roller 162, the joined body 8A is conveyed in a plane shape (substantially linearly when viewed from the side). On the other hand, in the state shown in FIG.8(b), the dancer roller 165 is located in the lower position in the figure. Therefore, between the upstream roller 161 and the downstream roller 162, since the conveyance locus of the joined body 8A is shifted downward, the conveyance distance of the joined body 8A becomes longer.

Conventionally, when the conveyance distance in the relaxation means is short, the relaxation of the elastic member may not progress sufficiently in the relaxation means due to resistance from the surface material or the like. On the other hand, as shown in FIG. 8( b ), when the conveyance distance of the joined body 8A between the upstream roller 161 and the downstream roller 162 is increased, the relaxation of the joined body 8A can be sufficiently ensured according to the extended distance. time, thus enabling relaxation to progress. In addition, the relaxation step in the relaxation means, especially in the case of high-speed operation, often does not progress well. However, as in the present embodiment, the conveyance distance is adjusted by the tension adjustment member, and the degree of progress of the relaxation can be adjusted. Even if the apparatus is operated at a high speed, the second tension t2 after the relaxation means 160 can be set to a desired tension (including the case of t2=0). The length of the conveyance distance that can be increased by the tension adjustment roller 165 can be adjusted to the desired relaxation state, considering the overall configuration of the relaxation means 160 (the configuration of the upstream roller 161 and/or the downstream roller 162 ) and the specific relaxation means 160 It is determined by the structure of the conveyance means which convey the laminated body 6A and the joined body 8A further upstream, the operation speed (the conveyance speed of the joined body 8A), and the like.

In this way, by changing the position of the tension roller provided in the relaxation means 160, the conveyance trajectory of the joined body 8A can be changed, and more specifically, the surface direction of the joined body 8A can be changed to include a vertical component. direction, so that the conveying distance can be adjusted. Thereby, even if the installation area of the relaxation means 160 is not increased (for example, the interval between the upstream roller 161 and the downstream roller 162 is not increased), the conveyance distance of the joined body 8A can be easily changed with a compact structure, and further, it is possible to easily The degree of relaxation of the joined body 8A is adjusted accordingly. Furthermore, the tension applied to the joined body 8A (or the tension generated by the joined body 8A) when unloaded from the relaxation means 160 can be easily adjusted, that is, the above-described second tension t2 can be easily adjusted.

In addition, a plurality of the above-mentioned dancer rollers may be provided. In addition, the tension adjustment member can be configured as a belt conveying means, and the belt surface of the belt conveying means can also be operated in a state of being in contact with the joined body 8A. In this case, the relaxed state of the joined body 8A can be changed by changing the speed of the belt of the belt conveying means. Such a belt conveying means is particularly preferable when the second tension t2 is to be set to 0, that is, when the elastic member 5 included in the joint body 8A is to be set to a natural length. When the conveying speed of the production line is too fast, the elastic member 5 may not be sufficiently relaxed in the relaxation means 160. In this case, by adjusting the speed of the belt of the belt conveying means, the roughness of the belt surface, and the like, it is possible to By reducing the speed of the joint body 8A in the relaxation means 160, the elastic member 5 can be sufficiently relaxed. In this way, as in the present embodiment, the relaxation means 160 is provided with a tension adjustment member, and the relaxation state of the joined body 8A can be easily controlled without making a complicated structure.

Next, the obtained earloop portion sheet tape 20A (joint body 8A) is punched into a predetermined shape, that is, the shape of each earloop portion sheet 20 , by punching means 180 . Thereby, a plurality of ear loop pieces 20, 20, . . . can be obtained. At this time, the earloop portion sheet tape 20A may be maintained in a predetermined relaxation state relaxed by the relaxation means 160 at all times. Thereby, for example, the earloop portion sheet tape 20A can be kept in a predetermined relaxed state relaxed by the relaxation means 160 , conveyed to the punching means 180 in this state, and punched into a predetermined shape. That is, the punching may be performed while maintaining the state lowered from the first tension t1 to the second tension t2.

Thereby, for example, when the second tension t obtained after passing through the relaxation means 160 is relatively high, that is, when the tension of the earloop portion sheet 20A is not reduced much, if the punching is performed while maintaining this relaxation state, Then after the punching step, once the tension is removed from the earhook portion sheet 20, the earhook portion sheet 20 will shrink in the conveying direction Dt (in the case of the mask, the lateral direction D2), and its shape and size will change. Thereby, it is possible to obtain an earhook piece 20 having a smaller size at least in the lateral direction D2. On the other hand, for example, when the second tension t2 is set to 0, that is, when the earloop portion sheet 20A is relaxed to a state (natural state) in which the tension applied to it disappears, if the relaxed state is maintained If punching is carried out, the shape of the obtained earloop piece 20 will be the same or almost the same as the shape immediately after the punching step. Therefore, by changing the relaxation state obtained by the relaxation means 160, even if the same punching die is used, it is possible to manufacture an earhook member 20 having a different shape and size, and further to manufacture a different feeling of use. The ear hook member 20. That is, the design of the earhook member 20 can be easily changed.

The ear loop pieces 20 , 20 , . . . obtained by the punching means 180 are fed to the mask member assembly device 200 . In the mask member assembly device 200, the ear hook part sheet 20 and the mask body 10 are combined. Here, the manufacture of the mask 1 ( FIGS. 1 to 5 ) including the auxiliary materials 30 and 30 will be described.

First, 30 A of auxiliary material tapes are arrange|positioned on one surface of the earhook part sheet|seat 20 obtained by the manufacturing apparatus 100 of the earhook member for masks. Then, the earhook portion sheet 20 and the auxiliary material tape 30A are joined by heat sealing or the like, and the inner joining portions 60 and 60 ( FIG. 1 and the like) can be formed. Further, the mask body band 10A of the mask body 10 is then supplied from the mask body band supply means 221 to the side opposite to the side on which the auxiliary material band 30A of the earhook portion sheet 20 is arranged. And the auxiliary material tape 30A and the mask main body tape 10A are joined by heat sealing etc., and can form the outer joined parts 50 and 50 (FIG. 1 etc.).

Each mask 1 can be obtained by, for example, a cutting step in the cutting means 190 after combining the earloop portion sheet 20, the auxiliary material tape 30A, and the mask body tape 10A. The cutting can be performed simultaneously with the joining of the earloop portion sheet 20 and the mask body band 10A.

In this form, when the earhook portion sheet 20 is combined on the mask body band 10A, the earhook portion sheet 20 can be joined to the mask body band in a state where the earhook portion sheet 20 is tensioned to the transverse direction D2 10A. In a state where tension is generated in the earhook portion sheet 20, the earhook portion sheet 20 obtained by punching out by the punching means 180 of the above-mentioned manufacturing apparatus 100 for the earhook member for a mask is placed on both sides of the transverse direction D2, respectively. The end portion (upstream and downstream of the conveying direction Dt) is fixed, and from both ends of the transverse direction D2, the length of the transverse direction D2 is extended while being stretched and conveyed, and the ear hook piece 20 can be overlapped and joined to the mask. onto the body belt 10A (FIG. 7).

Thereby, for example, while maintaining the second tension force t2 obtained by reducing the tension by the relaxation means 160 of the manufacturing apparatus 100 of the earloop member for a mask, the earloop portion sheet tape 20A can be conveyed, and the earloop portion sheet tape 20A can be arranged. The mask body band 10A is joined together. Or, also can produce the earhook part sheet 20 of the 3rd tension t3 that is different from the 2nd tension t2, for example, larger or smaller than the 2nd tension t2, under the state of maintaining the 3rd tension t3, be joined to the mask body band 10A.

9 shows a plan view of the mask 1 ' obtained by joining the earhook sheet 20 to the mask body band 10A in a state where the earhook sheet 20 is tensioned in the lateral direction D2 as described above. Fig. 9(a) shows the state before the start of use of the mask 1'. As shown in Fig. 9(a), tension in the lateral direction D2 is generated in the ear hook portion sheet 20 of the mask 1' before the start of use. Here, when starting to use the mask 1', if the separable joint 28 is separated and the pair of ear hooks 20a and 20a are separated in a state where the mask is placed on a flat surface, as shown in Fig. 9(b) As shown, the dimension of the lateral direction D2 of the pair of earhook portions 20a, 20a becomes small, so that the ends on the center side of the lateral direction D2 of the pair of earhook portions 20a, 20a are separated from each other. Moreover, the ear-hook parts 20a and 20a are relatively small in size with respect to the mask body 10 .

Thereby, whether there is tension in the lateral direction D2 of the earhook member 20 of the mask before the start of use, for example, in the state where the mask is placed on a plane, compare the pair of earhook portions 20a and 20a before the start of use. The total length in the lateral direction D2 (the length in the lateral direction D2 of the earhook portion sheet 20) and the total length in the lateral direction D2 of the earhook portions 20a, 20a after the pair of earhook portions 20a, 20a are separated from each other at the joint portion 28, When the latter becomes smaller, it can be confirmed.

In the mask 1' shown in FIG. 9, although the size of the mask body 10 is intended to be increased in advance, the size of the ear hooks 20a and 20a is made smaller, which is suitable for users who want to fit on the ears. suitable. In the case of making such a mask with respect to the size of the lateral direction D2 of the mask body 10, the size of the lateral direction D2 of the earhook parts 20a and 20a is reduced, if the manufacturing method of the mask of this form is not used, usually the earhook part The joining position of the sheet 20 to the mask body 10 is close to the center of the lateral direction D2, and there is a possibility that the entire mask body 10 cannot be utilized during wearing. Or, abandoning the structure of the ear-hook part sheet 20, in the state of separating the pair of ear-hook parts 20a, 20a, it needs to be joined to the two ends of the lateral direction D2 of the mask body 10, in this case, the manufacturing process will change. complicated. With respect to this, using the manufacturing method of the mask of this form, even if the size of the earhook piece 20 is changed, the desired structure can be obtained without changing the joint position of the earhook piece 20 and the mask body 10 or almost no change. .

Furthermore, in this form, it is also possible to make a mask 1" that does not include auxiliary materials 30 and 30, which is different from the mask 1 of FIG. 1. In this case, as shown in FIG. Directly overlap, and join the earhook part 20 and the mask body 10 at both ends of the earhook part 20 in the lateral direction D2.

Hereinafter, specific aspects of the present invention will be described.

(Supplement 1) The aspect of appendix 1 is a manufacturing method of an ear loop member for a mask, comprising the steps of: extending the stretchable member in a predetermined direction so as to generate tension, and maintaining the tension while maintaining the tension on the non-stretchable surface A material is overlapped on at least one surface of the stretchable member, and the stretchable member and the surface material are joined to obtain a joined body, and the joined body is relaxed in the predetermined direction to obtain a predetermined shape after reducing the tension. relaxation state, and punching the bonded body in the predetermined relaxation state into a predetermined shape.

In the aspect of the above-mentioned appendix 1, the material of the earhook member includes a stretchable member and a non-stretchable surface material arranged on at least one surface of the stretchable member. Then, at the time of manufacture, the stretchable member is elongated in a predetermined direction so that tension can be generated, the surface material is stacked on the stretchable member while maintaining the tension, and both are joined. Thereby, by adjusting the tension generated in the elastic member (adjusting the degree of elongation of the elastic member), without changing the material of the earhook member, it is possible to easily manufacture different elastic characteristics (maximum extension length) from the same material. Ear hook components.

Furthermore, in this aspect, the joint body of the elastic member and the surface material is relaxed to make a predetermined relaxed state, and the joint body in the predetermined relaxed state is punched out into a predetermined shape. Therefore, by adjusting the relaxed state of the joined body during punching (adjusting the degree of reduction of the tension of the elastic member), it is possible to manufacture different structures (sizes, shapes, etc.) with the same punching die without changing the punching die. , sense of use, etc.) ear hook components.

(Supplement 2) In the aspect of Supplementary Note 2, the predetermined relaxation state is adjusted by the tension adjustment member for the relaxation, and the tension adjustment member changes the conveyance trajectory of the joined body with respect to the surface direction of the joined body into the direction containing the vertical component.

According to the aspect of the above-mentioned appendix 2, it is possible to adjust the relaxation state of the tension steplessly without requiring a complicated procedure.

(Supplement 3) In the aspect of appendix 3, the tension adjustment member includes a roller capable of pressing down or pushing up the joined body.

According to the aspect of the above-mentioned appendix 3, the relaxation state of the joined body can be easily adjusted by making the tension adjustment member a member including a relatively simple roller.

(Supplement 4) In the aspect of appendix 4, the elastic member has a first surface and a second surface opposite to the first surface, and the manufacturing method includes the following steps: While maintaining the tension, the first surface material is superimposed on the first surface and the second surface material is superimposed on the second surface, the elastic member is joined to the first surface material, and the elastic The member is joined to the second surface material.

According to the aspect of the above-mentioned appendix 4, since the surface material is arranged on both sides of the stretchable member, it is possible to manufacture an earhook member that can obtain a comfortable touch even when touching either side.

(Supplement 5) In the aspect of Supplementary Note 5, it is a manufacturing device for ear loop members for masks, which is provided with the following means: elongation means, so that the elastic member can be stretched in a predetermined direction in a manner that can generate tension; lamination means, while maintaining the aforementioned tension. A non-stretchable surface material is superimposed on at least one surface of the stretchable member; joining means for joining the stretchable member and the surface material to form a joined body; relaxation means for relaxing the joined body in the predetermined direction , and a predetermined relaxation state after the tension is reduced; and punching means for punching the joined body in the predetermined relaxation state into a predetermined shape.

According to the aspect of the above-mentioned appendix 5, it is possible to obtain a manufacturing apparatus of an ear loop member, which achieves the same effect as the aspect of the appendix 1.

(Supplement 6) In the aspect of appendix 6, the earhook member for a mask is manufactured by the method for producing an earhook member for a mask according to any one of claims 1 to 4, wherein the earhook member for a mask is an earhook portion piece , the ear-hook part piece includes a pair of ear-hook parts that can be detachably combined with each other at the center of the lateral direction; Both ends of the mask are joined to the aforementioned mask body.

According to the aspect of the above-mentioned supplementary note 6, it is possible to manufacture a mask which can obtain the same effect as any of the aspects of the supplementary note 1 to the supplementary note 4.

(Supplement 7) In the aspect of Supplementary Note 7, the earloop portion sheet is joined to the mask body in a state where the earloop portion sheet is tensioned in the lateral direction.

According to the aspect of the above-mentioned appendix 7, in the case of using the earhook piece of the same size to manufacture a mask whose lateral dimension of the mask body is relatively large, it is not necessary to change the joint position of the earhook member (earhook piece) and the mask body, masks can be made. For example, if corresponding to the lateral dimension of the mask body, the earhook piece is joined on the mask body in the state of horizontal stretching in the past, then the lateral ends of the earhook piece can be joined to the lateral ends of the mask body respectively. both ends. Also, it is not necessary to change the earhook member (earhook portion piece) to a state in which the pair of earhook portions are separated from each other.

Also, in the case of using the mask obtained, when starting to use, a pair of earhook parts included in the earhook part sheet are separated from each other at the center of the lateral direction, and at this time, the tension that originally occurred in the earhook member disappeared. . Therefore, the pair of earhook members contract in the lateral direction in accordance with the lost tension, and are separated laterally from each other, and the lateral dimension of the pair of earhook portions becomes smaller than the appearance before the start of use. Thereby, it is possible to obtain a mask in which the lateral dimension of the ear hook portion is relatively small compared to the lateral dimension of the mask body.

(Supplement 8) In the aspect of Supplementary Note 8, a mask body and an ear-hook piece are provided, the ear-hook piece includes a pair of ear-hook parts, and the pair of ear-hook parts are respectively joined to both ends in the lateral direction of the mask body and are located in the above-mentioned The center of the transverse direction is joined together detachably from each other; and the ear loop portion piece generates tension in the transverse direction.

According to the aspect of the above-mentioned appendix 8, it is possible to provide a mask which achieves the same effect as the aspect of the appendix 7.

(Supplement 9) In the aspect of Supplementary Note 9, a mask body and an ear-hook portion piece are provided, and the ear-hook portion piece includes a pair of ear-hook portions, and the pair of ear-hook portions are respectively joined to both ends in the lateral direction of the mask body and are located in the above-mentioned The center of the transverse direction can be joined together detachably; and if the pair of earhook parts that are joined together are separated in the state where the mask body is placed on a plane, the pair of earhook parts of the pair of earhook parts are The separated ends are separated from each other.

According to the aspect of the above-mentioned appendix 9, it is possible to provide a mask which achieves the same effect as the aspect of the appendix 7 or the appendix 8.

This application claims the priority of Japanese Patent Application No. 2021-26368 for which it applied to the Japan Patent Office on February 22, 2021, the entire contents of which are incorporated herein by reference.

1,1',1": mask 2: The first surface material 2A: 1st surface material tape 3: Second surface material 3A: 2nd surface material tape 4: Joint 5: stretchable member (stretchable film) 5A: Stretch member tape (stretch film tape) 6A: Laminate 8A: Conjugate 10: Mask body 10A: Mask body strap 15: folds (folds) 18: Mark 20: ear hook piece (ear hook component) 20a: ear hook 20A: ear hook strap 25: Pinch part 28: Separable joints 29: Opening 30: Auxiliary materials 30A: Auxiliary tape 50: Outside joint 60: Inside joint 100: Manufacturing device for ear-hook components for masks 121: First surface material tape supply means 122: Second surface material tape supply means 123: Elastic member belt supply means 130: Stacking Means 140: Engagement means 160: Means of relaxation 161: Upstream Roller 162: Downstream Roller 165: Tension adjustment member (tension adjustment roller) 180: Punching means 200: Combination device of mask components 221: Mask body belt supply means 300: Mask manufacturing device D1: Portrait of the mask D2: The horizontal direction of the mask Dt: conveying direction

Fig. 1 is a plan view of a mask according to one aspect of the present invention. Fig. 2 is a plan view of the mask shown in Fig. 1 viewed from the inside (face side). FIG. 3 is a cross-sectional view taken along line I-I of FIG. 1 . Fig. 4 is a plan view of the mask in which a pair of ear hook portions are opened to the side, respectively. FIG. 5 is a cross-sectional view taken along line II-II of FIG. 4 . Fig. 6 shows a cross-sectional view of the ear hook piece. FIG. 7 is a schematic diagram for explaining the manufacture of the mask. FIG. 8 is a diagram for explaining relaxation means. FIG. 9 shows an example of a mask manufactured by the mask manufacturing apparatus shown in FIG. 7 . Fig. 10 shows a plan view of a mask without an auxiliary material.

Domestic storage information (please note in the order of storage institution, date and number) none Foreign deposit information (please note in the order of deposit country, institution, date and number) none

1': mask

10: Mask body

15: folds (folds)

18: Mark

20: ear hook piece (ear hook component)

20a: ear hook

25: Pinch part

28: Separable joints

29: Opening

30: Auxiliary materials

50: Outside joint

60: Inside joint

D1: Portrait of the mask

D2: The horizontal direction of the mask

Claims (9)

A method of manufacturing an ear loop member for a mask, comprising extending a stretchable member in a predetermined direction in a manner capable of generating tension, and superimposing a non-stretchable surface material on at least one surface of the stretchable member while maintaining the aforementioned tension , and join the stretchable member and the surface material to obtain a joined body, then relax the joined body in the predetermined direction to make a predetermined relaxed state after reducing the tension, and place the above-mentioned joint in the predetermined relaxed state. The joined body is punched into a predetermined shape. The manufacturing method of the ear loop member for a mask according to claim 1, wherein the predetermined relaxation state is adjusted by a tension adjustment member for the relaxation, and the tension adjustment member adjusts the conveyance trajectory of the joined body to With respect to the surface direction of the said joined body, it changed to the direction containing a perpendicular component. The manufacturing method of the ear loop member for masks according to claim 2, wherein the tension adjustment member includes a roller capable of pressing down or pushing up the joint body. The manufacturing method of the earloop member for a mask according to any one of claims 1 to 3, wherein the elastic member has a first surface and a second surface opposite to the first surface, and the manufacturing method Contains the following steps: While maintaining the tension, the first surface material is superimposed on the first surface and the second surface material is superimposed on the second surface, the elastic member is joined to the first surface material, and the elastic The member is joined to the second surface material. A kind of manufacturing device of ear-hook member for mask, it has following means: Elongation means to make the elastic member extend in a predetermined direction in a way that can generate tension; Lamination means for stacking a non-stretchable surface material on at least one surface of the stretchable member while maintaining the tension; a joining means for joining the stretchable member and the surface material to form a joined body; relaxation means for relaxing the joined body in the predetermined direction to make a predetermined relaxation state after reducing the tension; and, The punching means punches out the joined body in the predetermined relaxed state into a predetermined shape. A method for manufacturing a mouth mask, wherein the ear loop member for a mouth mask is manufactured by the method for producing an ear loop member for a mouth mask according to any one of claims 1 to 4, wherein the aforementioned ear loop member for a mouth mask is an ear loop piece, the The earhook part piece includes a pair of earhook parts detachably combined with each other at the center of the lateral direction; In addition, the ear loops are overlapped on the mask body, and are joined to the mask body at both ends of the ear loops in the lateral direction. The method of manufacturing a mask according to claim 6, wherein the earhook part is joined to the mask body in a state where the earhook part is tensioned in the lateral direction. A mask, comprising a mask body and an ear-hook piece, the ear-hook piece comprising a pair of ear-hook parts, the pair of ear-hook parts being respectively joined to both ends of the aforementioned mask body in the lateral direction and at the center of the aforementioned lateral direction. detachably joined together; In addition, the ear loop portion piece generates tension in the lateral direction. A mask, comprising a mask body and an ear-hook piece, the ear-hook piece comprising a pair of ear-hook parts, the pair of ear-hook parts being respectively joined to both ends of the aforementioned mask body in the lateral direction and at the center of the aforementioned lateral direction. detachably joined together; And when the said pair of earhook parts joined together are separated in the state where the said mask body is placed on the plane, the separated ends of the said pair of earhook parts are separated from each other.

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