JP5762804B2 - Mask manufacturing method, mask - Google Patents

Description

  The present invention relates to a mask worn on the face of a mask wearer.

  Conventionally, for example, Patent Document 1 below discloses a method for manufacturing a mask to be worn on the face of a mask wearer. In this manufacturing method, the mask main body part that generally covers the face of the mask wearer and the ear hook part that is hooked on the ear of the mask wearer are continuously conveyed, while the mask main body part and the ear hook part are joined to each other. By doing so, a plurality of masks are continuously manufactured. By the way, in this type of mask, there is a direction in which the mask main body part and the ear hook part are relatively easily stretched, so that the mask main body part and the ear hook part are deformed, distorted, and misaligned during transport during mask manufacture. It is assumed that there is a problem that causes Therefore, when designing this type of mask, in order to facilitate handling during mask manufacturing, it is required to construct a mask and a method for manufacturing the mask in consideration of the extending direction of the mask body and the ear hook. Is done.

JP 2007-312963 A

  Therefore, the present invention has been made in view of such points, and an object of the present invention is to facilitate handling at the time of manufacturing a mask in a mask to be mounted on the face of the mask wearer.

  In order to achieve the above object, the invention described in each claim is configured.

A method for manufacturing a mask according to the present invention is a method for manufacturing a mask comprising a mask main body and an ear hook connected to the mask main body. The first transport step, the second transport step, and the bonding Including a step and a relative position changing step.
The first transport step is a step of preparing a mask body portion that is easy to stretch in a high stretch direction that intersects a predetermined low stretch direction, and transporting the mask body portion along the low stretch direction of the mask body portion. The The second transport step is a step of preparing an ear hook that is easily extended in a high extension direction intersecting a predetermined low extension direction, and transporting the ear hook along the low extension direction of the ear hook. The The joining step is a step of joining the mask main body portion transported in the first transport step and the ear hooking portion transported in the second transport step. This joining step may be performed concurrently with the transporting step of the mask main body part or the ear hooking part, or may be performed separately from the transporting step. The relative position changing step is a step of changing the relative positions of the mask body and the ear hook so that the low extension direction of the mask main body and the high extension direction of the ear hook are substantially matched before the joining step; Is done. This step includes a mode in which the mask main body is moved with respect to the ear hook, a mode in which the ear hook is moved with respect to the mask main body, and a mode in which both the mask main body and the ear hook are moved. Is done. Thus, after the mask main body and the ear hook are transported along the direction in which they are difficult to extend, the mask main body in a state where the low extension direction of the mask main body and the high extension direction of the ear hook are substantially matched. And the ear hook can be joined to each other. That is, the relative positions of the mask main body and the ear hook are changed so as to be different between the time of conveyance and the time of bonding. Accordingly, it is possible to suppress the deformation, distortion, misalignment and the like of the mask main body part and the ear hooking part during transport during mask manufacture, and handling during mask manufacture becomes easy.

  In the mask manufacturing method according to a further aspect of the present invention, the relative position changing step changes the transport direction of either the mask main body part or the ear hooking part from the direction along the low extension direction to the high extension direction. It is preferable to change the relative position of the mask main body and the ear hook by changing the direction in the direction along the direction. Thereby, the relative position of a mask main-body part and an ear hook part can be changed easily by changing the conveyance direction of a mask main-body part or an ear hook part.

  In a further aspect of the mask manufacturing method according to the present invention, the mask main body is configured in a sheet shape, and the relative position changing step includes the first main transport step of transporting the mask main body on the sheet extending surface. It is preferable that the rotation direction of the mask main body is changed from the direction along the low extension direction to the direction along the high extension direction by rotating the mask main body portion by approximately 90 degrees. Thereby, the relative position of a mask main-body part and an ear hooking part can be easily changed by changing the conveyance direction of the said mask main-body part by rotation operation of a mask main-body part.

  The mask according to the present invention is configured as a mask manufactured by the above-described manufacturing method. In this mask, the mask main body part and the ear hook part are both made of sheet-like nonwoven fabric, and the mask main body part has an ear hook part in the end region in the low extension direction of the mask main body part, and heat or ultrasonic waves. It is preferable that the mask body is configured so that the low extension direction of the mask main body substantially coincides with the high extension direction of the ear hook. As a result, it is manufactured in a state in which the deformation, distortion, misalignment, etc. of the mask main body part or the ear hook part is suppressed, and the low extension direction of the mask main body part substantially matches the high extension direction of the ear hook part. A mask can be provided.

  In the mask of the further form which concerns on this invention, a mask main-body part is extended in the low extension direction of the said mask main-body part to the intermediate | middle area | region between the both-ends area | regions in the low extension direction of the said mask main-body part, and an intermediate | middle area. And a fold formed in the middle region, and the unfolding operation along the high extension direction of the mask main body portion of the heel is enabled in the intermediate region, whereby the mask main body portion is easily extended in the high extension direction. It is preferable that As a result, the mask is manufactured in a state in which deformation, distortion, misalignment and the like in the intermediate region of the mask main body portion are suppressed, and the mask body portion is configured so that the low extension direction of the mask main body portion substantially matches the high extension direction of the ear hook portion. Can provide.

The mask which concerns on this invention is comprised as a mask provided with a mask main-body part and the ear hook part connected with this mask main-body part. The mask body is formed of a sheet-like nonwoven fabric, and extends in a predetermined first direction and a second direction intersecting the first direction, and an end in the first direction. A region. The ear hook is formed of a sheet-like nonwoven fabric and is joined to the end region by heat or ultrasonic fusion. This mask is configured such that the mask main body portion is easier to extend in the second direction than the first direction, and the ear hooking portion is easier to extend in the first direction than the second direction. Note that the low extension direction of the mask body is configured to match the high extension direction of the ear hook. As a result, the mask main body that is easier to extend in the second direction than the first direction is transported along the first direction that is difficult to extend, and is transported in the second direction relative to the second direction. By transporting the ear hook part that is easy to extend in the direction of 1 along the second direction that is difficult to transport, it is possible to suppress the deformation, distortion, misalignment, etc. of the mask main body part and the ear hook part. Therefore, handling during mask manufacturing becomes easy.

  In the mask of the further form according to the present invention, the mask main body includes an intermediate region between both end regions in the first direction, and a ridge formed to extend in the first direction in the intermediate region. It is preferable that in the middle region, the unfolding operation along the second direction of the heel can be performed, and thereby, the structure is more easily extended in the second direction than in the first direction. As a result, the mask main body portion that is easier to extend in the second direction than the first direction by the ridges extending in the first direction in the intermediate region at the time of transport during mask manufacturing is not easily extended. By carrying along the direction, it is possible to suppress the occurrence of deformation, distortion, displacement, etc. of the mask main body.

  As described above, according to the present invention, it is possible to easily handle a mask worn on the face of the mask wearer when manufacturing the mask.

It is a top view at the time of seeing the mask 10 concerning this invention from the outer surface side. It is a top view at the time of seeing the mask 10 in FIG. 1 from the inner surface side. It is a figure which shows the cross-sectional structure about the AA of the mask 10 in FIG. It is a figure which shows the example of a change of the cross-section in FIG. It is a figure which shows the example of a change of the cross-section in FIG. It is the elements on larger scale of the B area | region in FIG. It is the figure which looked at the unfolded state of the mask 10 in FIG. 1 from the outer surface side. It is the figure which looked at the mask 10 at the time of mask wearing from the side. FIG. 6 is a plan view showing the dimension setting of the ear hook 30. It is a figure which shows the outline | summary of the mask manufacturing apparatus. It is a figure which shows the direction change apparatus 131 and the holding roll 141 in FIG. It is a figure explaining operation | movement of the direction change part 134 of the direction change apparatus 131 in FIG. It is a figure which shows a mode that each mask main-body part 20 and the ear hooking sheet | seat band 121b are overlaid by the predetermined arrangement | positioning aspect.

  Hereinafter, embodiments of a “mask” according to the present invention will be described in detail with reference to the drawings. The “mask” here is configured to cover at least the mouth by being worn on the face of the mask wearer.

  FIG. 1 shows a state in which the mask 10 of the present embodiment is viewed from the outer surface side, and FIG. 2 shows a state in which the mask 10 is viewed from the inner surface side. Here, the inner surface of the mask 10 is defined as a surface facing the face of the mask wearer when the mask is worn, and the opposite surface is defined as the outer surface of the mask 10. According to these FIG. 1 and FIG. 2, the mask 10 is composed of a mask main body 20 that mainly covers the mouth (mouth) and nose (nasal cavity) of the mask wearer, and a mask wearer of the mask wearer connected to the mask main body 20. It is set as the structure containing a pair of ear hook parts 30 and 30 used for hooking to an ear. The mask 10 is preferably used as a disposable mask that is supposed to be used once or several times. Typical uses thereof include measures against viruses such as colds, measures against pollen, and the like. The mask main body 20 and the pair of ear hooks 30, 30 here correspond to the “mask main body” and the “ear hook” in the present invention, respectively.

  As shown in FIG. 1, the mask main body 20 includes a flat plane portion 20 a that extends in a first direction 11 and a second direction 12 that intersects the first direction 11. The plane portion 20a referred to here corresponds to the “plane portion” in the present invention. Further, the first direction 11 and the second direction 12 referred to here correspond to the “first direction” and the “second direction” in the present invention, respectively. When the mask body 20 is a rectangle having a width L1 and a height L2 (<L1), the first direction 11 is also defined as the width direction of the mask body 20, and the second direction 12 is It is also defined as the vertical width direction of the mask body 20. In the two end regions 21, 21 on the first direction 11 of the mask main body 20, the junction points 22 extend linearly along the second direction 12. The joint point 22 is configured as a joint portion for fusing (also referred to as “welding”) the mask main body 20 and each ear hook 30 together. As fusion in this case, heat or ultrasonic waves can be used as appropriate. In addition, in one end region 23 on the second direction 12 of the mask main body 20, two joint points 24 and 24 extending linearly along the first direction 11 are arranged substantially in parallel. Has been. A housing space 25 is formed inside the mask main body 20 by the joint points 24 and 24, and a nose fit member 26 that can be deformed to fit the shape of the upper part of the nose of the mask wearer is housed in the housing space 25. Has been. In addition, instead of or in addition to the fusion at the joining points 22 and 24, joining with an adhesive can be used.

  The mask body 20 includes a plurality of pleats 27 formed to extend in the first direction 11 on the flat surface 20a. These ridges 27 are joined by the joining point 22 in a brazed state in the end region 21, so that the unfolding movement along the second direction 12 in the end region 21 is prevented, and the first region The unfolding operation can be performed in an intermediate region 28 between both end regions 21 and 21 on one direction 11. The cocoon 27 and the intermediate region 28 here correspond to “襞” and “intermediate region” in the present invention, respectively.

  As shown in FIG. 2, the pair of ear hooks 30, 30 is formed by an ear hook sheet 30 a bonded to the inner surface side of the mask main body 20. The ear hanging sheet 30a is made of a single sheet-like nonwoven fabric. That is, in the ear hooking sheet 30a, the two ear hooking portions 30 and 30 extend on the same plane while being connected to each other. In addition, the mask 10 is configured such that the ear hooking sheet 30 a fits within the outer shape of the mask main body 20 in a plan view of the mask 10. Thereby, a mask can be manufactured by joining the overlapping part of the mask main-body part 20 and each ear hook part 30 as it is, and especially the handling at the time of manufacturing a mask continuously becomes easy. In addition, since both ear hooks 30 and 30 are configured by the single sheet-like ear hook sheet 30a, it is possible to reduce the number of parts during mask manufacturing. In this case, the length in the first direction 11 or the second direction 12 of the mask main body 20 is approximately the same as the length in the first direction 11 or the second direction 12 of the ear hooking sheet 30a (ear hooking portion 30). The length of the mask main body 20 in the first direction 11 or the second direction 12 may be equal to the first direction 11 or the first direction of the ear hooking sheet 30a (ear hooking portion 30). The configuration may be longer than the length of the two directions 12. As a result, the pair of ear hooks 30 and 30 are accommodated in the outer shape of the mask main body 20 in a plan view of the mask 10.

  Each ear hook portion 30 of the ear hook sheet 30a has a joint portion 31 and an annular portion 32 which are integrally formed with each other by a single sheet-like nonwoven fabric, and the joint portion 31 is an end region of the mask main body portion 20. It is joined to 21 by fusing via a joining point 22. That is, the joint 31 of one ear hook 30 is joined to one end region 21 of the mask main body 20, and the joint of the other ear hook 30 is joined to the other end region 21 of the mask main body 20. 31 is joined. Thereby, the structure of the ear hook 30 and the joint structure of the joint part 31 and the end region 21 can be simplified. In particular, the joint portion 31 is configured as a portion that is fused to the end portion region 21 via the joint point 22 while extending over substantially the entire end portion region 21 in the second direction 12. In this case, two corners (upper and lower corners in FIG. 2) in the second direction 12 of the end region 21 of the mask main body 20 are respectively in the second direction of the joint 31 of the ear hook 30. It is preferable to match two corners of 12 (upper and lower corners in FIG. 2).

  The joint portion 31 and the annular portion 32 of each ear hook portion 30 are connected to each other in a ring shape, thereby forming an ear hook space 33 that is an opening portion of the ear hook portion 30. That is, the annular portion 32 is configured as a portion that forms the ear hooking space 33 together with the joint portion 31. The ear hooking space 33 is formed in a closed state between the joint portion 31 and the annular portion 32, and fulfills a function of accommodating the ear when the annular portion 32 is hooked on the mask wearer's ear. Thereby, the ear hooking portion 30 having the ear hooking space 33 can be manufactured by punching with a punching member having a simple shape corresponding to the ear hooking space 33. As an example of the change, the ear-hanging space 33 can be formed by an opening portion in which the ear-hanging portion 30 is cut.

  Further, the ear hooking sheet 30 a is provided with a connecting portion 34 at a connecting portion between the annular portion 32 of one ear hooking portion 30 and the annular portion 32 of the other ear hooking portion 30. Thereby, in the single sheet-like ear hooking sheet 30a, a configuration in which both ear hooking portions 30, 30 are connected to each other by the annular portion 32 is realized. The connection portion 34 is configured as a connection portion that connects the one ear hook portion 30 and the other ear hook portion 30 to each other within the outer shape of the mask main body portion 20. Thereby, the handling in the state which the both ear hooking parts 30 and 30 were previously connected by the connection part 34 and were integrated becomes possible. Moreover, it is easily recognized that the mask 10 is in an unused state by providing the connection portion 34 that connects the both ear hooking portions 30 and 30 to each other. Further, the connection portion 34 is configured so that the connection of the connection portion 34 can be released by pulling each ear hook portion 30 by hand, that is, the connection strength is lower than a specified tensile load. . For this reason, typically, it is preferable to form the connection part 34 by using the form etc. which mutually connect one annular part 32 and the other annular part 32 via a perforation or an adhesive agent. Thereby, the mask wearer can easily release the connection at the connection portion 34 of the pair of ear hooks 30 and 30 to prepare for the use of the mask. The connection portion 34 may be a connection portion composed of one point or a plurality of points, or may be a linear connection portion extending along the second direction 12. Moreover, the connection part 34 may be a connection part having a connection strength that requires a cutting process with scissors or a cutter. In addition, the both ear hooking portions 30 and 30 may be configured separately from each other, instead of being integrally formed by a single ear hooking sheet 30a. In the case of a separate body, the configuration may be such that both ear hooks 30, 30 are connected to each other at the connecting portion and extend on the same plane, or may be configured to overlap each other at the connecting portion. .

  3 and 4 are referred to for the cross-sectional structure of the mask main body 20 having the above configuration. The third direction 13 shown in these drawings is configured as a direction that intersects both the first direction 11 and the second direction 12. The third direction 13 is the sheet thickness direction of the mask main body 20 or the ear hanger sheet 30a (ear hanger 30), or the overlapping direction of the mask main body 30 and the ear hanger sheet 30a (ear hanger 30). Is also defined. According to FIG. 3, the plurality of ridges 27 are formed such that the outer surface side of the mask main body portion 20 has a fold mountain (also referred to as a “fold” or “an ridge”) folded up and down outward. It is configured as a brazing form ("box fold" and so on) in which folded folds are formed in a butt shape. 3 can be appropriately selected as necessary. For example, as shown in FIG. 4, a form of brazing in which a fold mountain is repeatedly formed on the outer surface side of the mask body 20. Alternatively, as shown in FIG. 5, it is possible to adopt a brazing form in which folds are repeatedly formed on the inner surface side of the mask main body 20.

  As shown in FIG. 6, the mask main body 20 in FIG. 3 further includes an outer sheet 20 b made of a sheet-like nonwoven fabric, an intermediate sheet 20 c, and an inner sheet 20 d, and these sheets sequentially in the third direction 13. It has a three-layered structure.

The outer sheet 20b has an outer surface of the mask main body 20, that is, a surface exposed to the outside when the mask is worn. The inner sheet 20d has an inner surface of the mask main body 20, that is, a surface facing the mask wearer in the mask wearing state. Each of the outer sheet 20b and the inner sheet 20d is composed of a known spunbond (SB) non-woven fabric, point bond (PB) non-woven fabric, spunlace (SL) non-woven fabric, air-through (AT) non-woven fabric, and the like. It is preferable to set appropriately in the range of ˜100 g / m ² . Thereby, the desired air permeability of the mask main-body part 20 is ensured.

The intermediate sheet 20c is configured as a filter sheet having a predetermined collection property for dust, bacteria, viruses, and the like. The intermediate sheet 20c is preferably made of a known melt blown (MB) non-woven fabric and the like, and its basis weight is preferably set as appropriate within a range of, for example, 1 to 50 g / m ² . Thereby, the desired air permeability of the mask main-body part 20 is ensured, and the desired collection property is ensured. The intermediate sheet 20c may be integrated with the outer sheet 20b using a hot melt adhesive (HMA).

On the other hand, as the material of the ear hook part 30, known stretched spunbond (SB) nonwoven fabric, stretched spunbond / microweb / spunbond (SMS) nonwoven fabric, stretched spunbond / film / spunbond nonwoven fabric, stretchable spunlace nonwoven fabric, A stretchable hot melt adhesive (HMA) nonwoven fabric or the like can be used, and the basis weight of the nonwoven fabric is preferably set as appropriate in the range of, for example, 20 to 120 g / m ² . Thereby, the desired elasticity of the ear hook 30 is ensured.

  FIG. 7 illustrates a state in which the plurality of ridges 27 of the mask main body 20 are deployed along the second direction 12. As shown in FIG. 7, when the mask is used, the mask body 20 is prevented from unfolding along the second direction 12 of the plurality of ridges 27 in each end region 21, while in the intermediate region 28, A developing operation (also referred to as “a developing operation of the mask developing unit 20”) along the second direction 12 of the plurality of ridges 27 is possible. At this time, each end region 21 has a curved shape without the length along the second direction 12 being expanded, while the intermediate region 28 has a length L3 along the second direction 12. It is curved while expanding. Thereby, the mask main body 20 has a three-dimensional shape in which the mask wearer side is recessed, and a predetermined mouth space 29 is formed between the inner surface of the mask main body 20 and the mask wearer.

  FIG. 8 shows a state where the mask wearer wearing the mask 10 in the state shown in FIG. 7 is viewed from the side. According to FIG. 8, the mask wearer's face is covered with the mask body 20 by hooking the annular portion 32 of the ear hook 30 to the mask wearer's ear. At this time, since the end region 21 of the mask main body 20 has a curved shape, a gap is easily generated between the end region 21 and the cheek portion of the mask wearer. Therefore, the mask 10 of the present embodiment has a configuration (hereinafter also referred to as “gap suppression mechanism”) described below in order to suppress this gap.

<Long extension part>
That is, in the mask 10 of the present embodiment, the gap suppressing mechanism is configured such that the joint 31 of the ear hook 30 extends in a long shape over almost the entire end region 21 in the second direction 12. A long elongated portion. Thereby, when the tension | tensile_strength which arises in the annular part 32 at the time of mask wear acts on the junction part 31, the junction part 31 can follow the shape of a cheek part of a mask wearer, and can improve the adhesiveness with the said cheek part. As shown in FIG. 8, it can suppress that a clearance gap produces especially in the boundary part 41 between the edge part area | region 21 and a mask wearer's face. At this time, the upper corner of the joint 31 of the ear hook 30 is connected to the upper corner of the end region 21 of the mask main body 20, and the lower side of the joint 31 of the ear hook 30. Is connected to the lower corner of the end region 21 of the mask body 20. As a result, as shown in FIG. 8, in the boundary portions 42 and 43 on both sides of the boundary portion 41, a gap is formed between the end region 21 and the mask wearer's face. Can be suppressed. Thus, a gap is generated between the end region 21 of the mask main body 20 and the face of the mask wearer over the wide range of the boundary portions 41 to 43 in the second direction 12 by the joint portion 31 of the ear hook portion 30. Can be suppressed.

  Furthermore, the gap suppression mechanism can exhibit a further gap suppression effect by including various dimension setting parts and curved parts that embody the configuration of the mask main body part 20 or the ear hooking part 30 as follows. It becomes.

<First dimension setting unit>
As shown in FIG. 9, in the present embodiment, the length of the joint portion 31 in the first direction 11 is a [mm], and the distance in the second direction 12 of the ear hooking space 33 in the joint portion 31 is the distance. An ear hook set so that a relationship of b = 2a + C is established, where b [mm] is a specified length and C [mm] is a constant value selected in advance from a dimension value from 10 mm to 70 mm. It is preferable that the part 30 constitutes a first dimension setting part. Thereby, the dimension setting of the ear hook part which can suppress reliably the gap which arises in the above-mentioned boundary parts 41-43 is realizable by heightening the follow-up effect of the junction part 31 with respect to the shape of a cheek part of a mask wearer. .

<Second dimension setting unit>
Moreover, it is preferable that the second dimension setting section is configured by the ear hooking section 30 that is set so that the length “a” of the joint section 31 in the first direction 11 has a dimension value of 30 mm or less. That is, it is preferable that the joint portion 31 of the ear hook portion 30 has an extension length within a predetermined range with respect to the first direction 11. Thereby, on the one hand, the effect of suppressing the gap generated in the boundary portion 41 in particular by increasing the length a is obtained, and on the other hand, the joint 31 is wrinkled when the length a is excessively increased. By suppressing, the effect of preventing the appearance from deteriorating can be obtained.

<Third dimension setting unit>
In addition, it is preferable that the third dimension setting unit is configured by the ear hooking part 30 that is set so that the sheet width d [mm] of the annular part 32 has a dimension value from 10 mm to 30 mm. In other words, the annular portion 32 of the ear hook 30 preferably has a sheet width within a predetermined range. Thereby, on the one hand, it is possible to prevent the mask wearer from being given an impression that the seat width d of the annular portion 32 is too narrow and the ears are likely to hurt. On the other hand, the seat width of the annular portion 32 is obtained. The effect of preventing d from being too thick and deteriorating in appearance can be obtained.

<Fourth dimension setting section>
In addition, it is preferable that the fourth dimension setting unit is configured by the mask main body 20 that is set so that the length L1 [mm] in the first direction 11 is a dimension value from 100 mm to 180 mm. That is, the mask main body 20 preferably has an extension length within a predetermined range with respect to the first direction 11. Thereby, on the one hand, it is possible to prevent the mask wearer from being given anxiety that the dimension of the mask body 20 in the first direction 11 is too small, and on the other hand, the mask body 20 is It is possible to obtain an operational effect that it is possible to prevent the gap from being excessively increased in the first direction 11 to cause a gap, the fit feeling to be deteriorated, and the appearance to be deteriorated.

<5th dimension setting part>
In addition, it is preferable that the fifth dimension setting unit is configured by the mask main body 20 that is set so that the length L2 [mm] in the second direction 12 has a dimension value of 70 mm to 100 mm. That is, the mask main body 20 preferably has an extension length within a predetermined range with respect to the second direction 12. Thereby, on the one hand, it is possible to prevent the mask wearer from being given anxiety that the dimension of the mask body 20 in the second direction 12 is too small, and on the other hand, the mask body 20 is There is an effect that it is possible to prevent the gap from being excessively increased in the second direction 12 to cause a gap, a feeling of fit, and a poor appearance.

<Sixth dimension setting unit>
Further, the mask main body is set such that the development length L3 [mm] along the second direction 12 of the intermediate region 28 when the plurality of ridges 27 are deployed by the deployment operation is a dimension value from 135 mm to 175 mm. The part 20 preferably constitutes a sixth dimension setting part. In other words, it is preferable that the mask body 20 is configured with the collar 27 so as to be deployed with a deployment length within a predetermined range along the second direction 12. Thereby, the effect that a clearance gap can be suppressed by improving the fit feeling of the mask main-body part 20 with respect to a mask wearer's face is acquired.

<Curved part>
The mask main body 20 includes a curved portion that curbs the end region 21 as the plurality of collars 27 are deployed in the intermediate region 28, thereby suppressing a gap between the joint 31 and the mask wearer's face. preferable. The curved portion is typically set so that the radius of curvature when curved is relatively large, or the length L2 along the second direction 12 when curved is relatively small. It is comprised by the edge part area | region 21 made. Thereby, when the edge part area | region 21 of the mask main-body part 20 curves at the time of mask mounting | wearing, generation | occurrence | production of the clearance gap which arises by this curve is suppressed by improving the tracking effect of the edge part area | region 21 with respect to the shape of a cheek part of a mask wearer. It becomes possible. In addition, when the radius of curvature of the end region 21 at the time of bending is R [mm], the curved portion has a length L2 along the second direction 12 of the end region 21 with respect to the radius of curvature. mm] is preferably constituted by the end region 21 set so that the ratio (L2 / R) is 2 to 3.5. Thereby, the suitable dimension setting of the curved part which can suppress generation | occurrence | production of the clearance gap produced when the edge part area | region of a mask main-body part curves at the time of mask mounting | wearing is realizable.

  A manufacturing apparatus and a manufacturing method according to the mask 10 having the above-described configuration will be described below with reference to FIGS.

  FIG. 10 shows an outline of the mask manufacturing apparatus 100. The manufacturing apparatus 100 includes an outer sheet supply apparatus 101, an inner sheet supply apparatus 102, an intermediate sheet supply apparatus 103, a sheet stacking apparatus 104, a nose fit insertion apparatus 105, a brazing apparatus 106, an end cut apparatus 107, and an ear-hanging sheet supply apparatus. 121, a punching device 122, a direction changing device 131, a holding roll 141, and a joining device 151. In this mask manufacturing apparatus 100, each of the above-described constituent elements constituting the apparatus may be omitted as appropriate, or other constituent elements may be added.

  The outer sheet supply apparatus 101 is configured as an apparatus that prepares and supplies a long strip-shaped outer sheet band 101a for forming the aforementioned outer sheet 20b. Similarly, the inner sheet supply device 102 is a device that prepares and supplies the long inner belt sheet 102a for forming the inner sheet 20d, and the intermediate sheet supply device 103 is the intermediate sheet described above. It is configured as an apparatus for preparing and supplying a long belt-like intermediate sheet band 103a for forming 20c. The sheet stacking device 104 conveys the laminated sheet band 104a while forming a laminated sheet band 104a having a three-layer structure in which the intermediate sheet band 103a is sandwiched between the outer sheet band 101a and the inner sheet band 102a. It is configured as a device for The nose fit insertion device 105 is configured as a device for inserting the insertion member 105a for forming the above-described nose fit member 26 (see FIG. 1) into the accommodation space of the laminated sheet band 104a. The laminated sheet band 104a into which the insertion member 105a has been inserted is subjected to a crimping process of the collar 27 by the crimping apparatus 106, and then cut into individual mask main body portions 20 by the end cutting apparatus 107. Each mask main body 20 is then subjected to a predetermined direction change by the direction changing device 131, and further conveyed to the joining device 151 while being held by the holding roll 141.

  As described above, from the outer sheet supply device 101, the inner sheet supply device 102, and the intermediate sheet supply device 103, the sheet stacking device 104, the nose fit insertion device 105, the brazing device 106, the end cut device 107, and the direction changing device 131 are provided. A series of equipment that reaches the holding roll 141 passes through a mask that easily extends in a high extension direction (second direction 12 in FIG. 1) that intersects a predetermined low extension direction (first direction 11 in FIG. 1). A main body 20 is prepared, and the mask main body 20 is transported along the low extension direction (first direction 11 in FIG. 1) of the mask main body 20 to perform a transport step (first transport step). Be controlled. This transport step corresponds to the “first transport step” in the present invention.

  On the other hand, the ear hanger sheet supply device 121 is configured as a device that prepares and supplies a long band-like ear hanger sheet belt 121a for forming a plurality of ear hanger sheets 30a (a pair of ear hanger portions 30 and 30). . That is, the ear hooking sheet band 121a includes a plurality of pairs of ear hooking portions 30 and 30. The ear-hanging sheet band 121a is a non-woven sheet that is easier to extend in a direction (also referred to as “high extension direction”) that intersects the longer extension direction than the length extension direction (also referred to as “low extension direction”). It is configured. The ear hanging sheet band 121a is punched by the punching device 122 while being conveyed along the low extension direction. The punching device 122 includes a die cutter 123 and an anvil roll 125. The die cutter 123 rotates and presses the convex punching blade of the sheet holding surface 124 against the roll surface 126 of the anvil roll 125 while holding the hooked sheet band 121a on the sheet holding surface 124 by a suction device (not shown). The punching sheet band 121a is punched out. Specifically, by this punching process, portions other than the portion corresponding to the ear hooking portion 30 of the ear hooking sheet band 121a are punched out, thereby including a plurality of ear hooking sheets 30a in FIG. An ear hanging sheet band 121b including the portion 30 is formed. The punched sheet band 121b that has been subjected to the punching process is then transported to the joining device 151 together with the mask body 20 held by the holding roll 141.

  As described above, a series of equipment from the ear hooking sheet supply device 121 to the joining device 151 through the punching device 122 is a high extension that intersects a predetermined low extension direction (second direction 12 in FIG. 1). An ear-hanging sheet band 121b (an ear-hanging sheet band including a plurality of pairs of ear-hanging sections 30) that is easy to extend in the direction (first direction 11 in FIG. 2) is prepared, and the ear-hanging sheet band 121b is used as the ear-hanging section. It is controlled to perform a transport step (second transport step) for transporting along the 30 low extension direction (second direction 12 in FIG. 1). This transport step corresponds to the “second transport step” in the present invention.

  Then, each mask main-body part 20 is continuously introduce | transduced into the joining apparatus 151 with the ear hooking sheet belt | line 121b, and is joined to the ear hooking sheet belt | line 121b. That is, the bonding apparatus 151 includes a mask main body 20 that is transported in the first transport step described above, and an ear hooking sheet band 121b (nonwoven fabric including a plurality of pairs of ear hooks 30) that is transported in the second transport step. It is controlled to perform a joining step for joining the sheets) together. This joining step may be performed concurrently with the transporting step of the mask main body 20 and the ear-hanging sheet band 121b, or may be performed separately from the transporting step. This joining step corresponds to the “joining step” in the present invention. Thereafter, various final post-processes such as a process of cutting off the excess protruding portion are performed, whereby the mask 10 in FIG. 1 including the mask main body 20 and the pair of ear hooks 30 is manufactured.

  FIG. 11 is referred to for specific configurations of the direction changing device 131 and the holding roll 141. According to FIG. 11, the direction changing device 131 is attached to the rotating body 132 rotated in the direction of the arrow 130 (counterclockwise) in the drawing, and the outer peripheral surface of the rotating body 132 via the support shaft 133. The plurality of (12 in FIG. 11) direction changing sections 134 provided. Each direction changing section 134 rotates around the support shaft 133 in a state where one mask main body 20 is sucked and held on the sheet holding surface 135 by a suction device (not shown), thereby changing the direction of the mask main body 20. While performing a process, the mask main-body part 20 is conveyed to the holding roll 141 side with rotation operation of the rotary body 132. FIG. The holding roll 141 has a rotating body 142 that is rotated in the direction of an arrow 140 (clockwise) in the drawing, and sucks a plurality of mask main body portions 20 conveyed from the direction changing device 131 (not shown). Thus, the sheet is held on the sheet holding surface 142 and rotated.

  By the way, each mask main body 20 is more easily extended in the second direction 12 than in the first direction 11 due to the influence of the flange 27 and the like. Inconveniences such as distortion and misalignment are assumed. Here, with respect to the mask main body 20, the first direction 11 in FIG. 1 is a low extension direction with a relatively low extension degree, and the second direction 12 in FIG. 1 is a relatively high extension degree. Configured as high stretch direction. On the other hand, for each ear hook 30, the second direction 12 in FIG. 2 is a low extension direction with a relatively low extension degree, and the first direction 11 in FIG. 2 is a relatively high extension degree. Configured as high stretch direction. In order to suppress the above-described problems, it is necessary to transport the mask main body 20 along the first direction 11 that is harder to extend than the second direction 12. On the other hand, each mask body 20 is joined so that the low extension direction of the mask main body 20 and the high extension direction of the ear hanger sheet band 121b substantially coincide with each other when joining the ear hanger sheet band 121b. The main body 20 and the pair of ear hooks 30 need to be arranged as shown in FIG.

  Therefore, in the present embodiment, the transport direction of each mask body 20 in the first transport step described above is along the low extension direction of the mask body 20 (first direction 11 in FIG. 1). It is based on the direction. Thereby, it is possible to suppress the deformation, distortion, misalignment and the like of the mask main body 20 during conveyance during mask manufacturing, and therefore handling during mask manufacturing is facilitated. On the other hand, immediately before the above-described joining step of joining each mask main body 20 and the ear hanger sheet band 121b to each other, the relative position of each mask main body 20 with respect to the ear hanger sheet band 121b is changed by the direction changing device 131. More specifically, the transport direction of each mask body 20 is changed from the direction along the low extension direction to the direction along the high extension direction. Thereby, before a joining step, the mask main-body part 20 and the ear hooking sheet belt | band | zone so that the low extension direction of the mask main-body part 20 and the high extension direction of the ear hooking sheet belt | line 121b (ear hook part 30) may correspond in general. The relative position of 121b (ear hook 30) is changed. Therefore, this step by the direction changing device 131 corresponds to the “relative position changing step” in the present invention. It should be noted that the above-described ear hooking sheet 30a is used instead of the ear hooking sheet band 121b, and the conveying direction of the ear hooking sheet 30a or the mask main body portion 20 is changed from the direction along the low extension direction to the high extension direction. By changing to the direction, the relative positions of the mask main body 20 and the ear hook 30 can be changed.

  Here, FIG. 12 is referred to for specific processing of each direction changing unit 134 in the direction changing device 131. In FIG. 12, (a) in the figure shows the case where the direction changing part 134 is at the 12 o'clock position, and (b) in the figure shows the case where the direction changing part 134 is in the 9 o'clock position. The case where the portion 134 is at the 6 o'clock position is shown in FIG. According to FIG. 12, each direction changer 134 follows the direction of the arrow 130 from the 12 o'clock position (top dead center) through the 9 o'clock position to 6 o'clock position (bottom dead center) around the rotating body 132. In the process of rotating, the direction changing process is performed by rotating about 90 degrees clockwise around the support shaft 133. Thereby, the mask main body 20 held on the sheet holding surface 135 of each direction changing portion 134 is rotated by approximately 90 degrees on the sheet extending surface. Each direction change part 134 delivers each mask main-body part 20 to the holding roll 141 side, when it rotates to the 6 o'clock position (bottom dead center). Thereafter, each direction changing portion 134 is released from the position of 6 o'clock (top dead center) to the position of 12 o'clock (bottom position) from the position of 6 o'clock (top dead center) in a state where the holding of each mask body 20 is released. Rotate along the direction of the arrow 130 until the dead point), and rotate 90 degrees clockwise about the support shaft 133. Thus, each direction changing part 134 holds the next mask body 20 by rotating again to the 12 o'clock position (top dead center).

  FIG. 13 is referred to for the manner in which the mask main body 20 and the ear hooking sheet band 121b are overlapped with each other in a predetermined arrangement manner. According to FIG. 13, on the sheet holding surface 142 of the holding roll 141, each mask main body portion 20 is along the feeding direction (direction of the arrow 140) intersecting the extending direction of the collar 27, that is, the mask main body portion 20. Sent along the direction of high stretch. On the other hand, on the sheet holding surface 124 of the die cutter 123, the ear hooking sheet band 121b is along the feeding direction (direction of arrow 120) intersecting the connecting direction of the pair of ear hooking portions 30, that is, the ear hooking sheet band 121b. It is sent along the low extension direction of the (ear hook 30). Thereby, each mask main-body part 20 and the ear hanger sheet | seat band 121b are arrange | positioned so that the low extension direction of the mask main-body part 20 and the high extension | elongation direction of the ear hanger sheet | seat band 121b (ear hook part 30) may correspond substantially. In the state, they are overlapped with each other, conveyed to the joining device 151 in the arrangement state, and joined together. Therefore, according to the present embodiment, after the mask main body 20 and the ear hanger sheet band 121b are respectively conveyed along the direction in which the mask main body part 20 and the ear hanger sheet band 121b are difficult to extend, The mask body 20 and the ear hooking sheet band 121b can be joined to each other in a state where the high extension direction of the portion 30) is substantially matched.

  In the above manufacturing method, when the mask main body 20 and the ear hook 30 (ear hook sheet band 121b) are joined, the mask main body 20 and the ear hook 30 are both moved to change the relative positions of the two. In the present invention, the mask body 20 is moved by moving the ear hook 30 with respect to the fixed mask body 20 or with respect to the fixed ear hook 30. By doing so, you may make it change the relative position of both.

(Other embodiments)
In addition, this invention is not limited only to said embodiment, A various application and deformation | transformation can be considered. For example, each of the following embodiments to which the above embodiment is applied can be implemented.

  In the said embodiment, although the case where the mask main-body part 20 was made into the 3 layer structure which consists of a 3 layer sheet nonwoven fabric was described, in this invention, it selects suitably about the number of sheet nonwoven fabrics, a kind, and the number of lamination | stacking as needed. Is possible.

  Further, in the above embodiment, the disposable type mask that is intended to be used once or several times has been described. However, by appropriately selecting the material of the mask main body 20 and the ear hanger 30, washing or the like is performed. In addition, the present invention can be applied to a type of mask that can be used repeatedly.

  In the present invention, the following aspects can be employed based on the description of the above embodiment and various modified examples.

(Aspect 1)
“A mask manufacturing method comprising a mask body and an ear hook connected to the mask body,
Preparing a mask main body portion that is easy to extend in a high extension direction intersecting a predetermined low extension direction, and transferring the mask main body portion along the low extension direction of the mask main body portion;
A second transporting step of preparing an ear hook that is easy to extend in a high extension direction that intersects a predetermined low extension direction, and transporting the ear hook along the low extension direction of the ear hook;
A joining step for joining the mask main body part for transportation in the first transportation step and the ear hooking part for transportation in the second transportation step;
Relative position change for changing the relative positions of the mask main body and the ear hook so that the low extension direction of the mask main body and the high extension direction of the ear hook substantially match before the joining step. Steps,
The method of manufacturing a mask characterized by including "can be adopted.

(Aspect 2)
“A method of manufacturing a mask according to aspect 1,
In the relative position changing step, the transfer direction of either the mask body part or the ear hooking part is changed from a direction along the low extension direction to a direction along the high extension direction, A mode of “a method of manufacturing a mask,” which is a step of changing the relative positions of the mask main body portion and the ear hooking portion can be employed.

(Aspect 3)
“A method of manufacturing a mask according to aspect 2,
The mask body is configured in a sheet shape,
In the relative position changing step, the mask main body portion transported in the first transport step is rotated by approximately 90 degrees on the sheet extending surface, thereby changing the transport direction of the mask main body portion in the low extension direction. It is possible to adopt a mode of “a method of manufacturing a mask,” which is a step of changing from a direction along the direction to a direction along the high extension direction.

(Aspect 4)
"A mask manufactured by the manufacturing method according to any one of aspects 1 to 3,
The mask main body and the ear hook are both composed of a sheet-like nonwoven fabric,
The mask body is joined to the end region in the low extension direction of the mask body by fusion bonding, whereby the low extension direction of the mask body is the high extension direction of the ear hook. And a “mask characterized by being configured so as to substantially match”.

(Aspect 5)
“The mask according to aspect 4,
The mask main body has an intermediate region between both end regions in the low extension direction of the mask main body, and a ridge formed in the intermediate region so as to extend in the low extension direction of the mask main body. In the intermediate region, the wrinkle can be unfolded along the high extension direction of the mask main body portion, whereby the mask main body portion is easily extended in the high extension direction. The aspect of “a mask” can be taken.

(Aspect 6)
“A mask comprising a mask main body and an ear hook connected to the mask main body,
The mask body is formed of a sheet-like non-woven fabric, and extends in a predetermined first direction and a second direction intersecting the first direction, and on the first direction. An end region, and
The ear hook is formed of a sheet-like non-woven fabric and joined to the end region by fusion,
The mask main body portion is configured to be easier to extend in the second direction than the first direction, and the ear hooking portion is easier to extend in the first direction than the second direction. The aspect of “a mask” can be taken.

(Aspect 7)
“The mask according to aspect 6,
The mask main body includes an intermediate region between both end regions in the first direction, and a ridge formed in the intermediate region so as to extend in the first direction. A mode of “a mask characterized in that the unfolding movement of the ridge along the second direction is possible, and the structure is thus easier to extend in the second direction than in the first direction”. Can be taken.

(Aspect 8)
“A method of manufacturing a mask according to any one of aspects 1 to 3,
The mask main body has a configuration in which an intermediate sheet is disposed between an outer sheet and an inner sheet, and the first conveying step includes an elongated outer sheet band for forming the outer sheet, A three-layer laminated sheet band is formed in which a long band-shaped intermediate sheet band for forming the intermediate sheet is sandwiched between a long band-shaped inner sheet band for forming an inner sheet. However, an aspect of “a method for manufacturing a mask” including a step of cutting the laminated sheet band into the individual mask main body portions can be adopted.

(Aspect 9)
“A method of manufacturing a mask according to aspect 8,
The first conveying step includes a step of inserting an insertion member for forming a nose-fit member that can be deformed so as to conform to the shape of the upper nose of the mask wearer into the accommodation space of the laminated sheet band. And a method of manufacturing a mask.

(Aspect 10)
“A method of manufacturing a mask according to aspect 8 or 9,
The first transporting step can take an aspect of “a method for manufacturing a mask” including a step of forming a ridge extending in a predetermined direction on the laminated sheet strip.

(Aspect 11)
“A method of manufacturing a mask according to any one of aspects 1 to 3,
The second transporting step may adopt a mode of “a method for manufacturing a mask” including a step of transporting a long strip-like ear-hanging sheet band including a plurality of pairs of the ear-hooking portions.

(Aspect 12)
“A method of manufacturing a mask according to aspect 11,
The second transporting step may take a form of “a method of manufacturing a mask” including a step of punching a portion other than the portion corresponding to the ear hooking portion of the ear hooking sheet band.

(Aspect 13)
“A method of manufacturing a mask according to aspect 3,
In the relative position changing step, the mask main body portion is rotated 90 degrees around a predetermined support axis in a state where the mask main body portion is sucked and held on the sheet holding surface of the direction changing portion. It is possible to adopt an aspect of “a method of manufacturing a mask, which is characterized in that it is a step of rotating approximately 90 degrees on the sheet extending surface”.

(Aspect 14)
“The mask according to aspect 6 or 7,
A mask characterized in that a deformable nose fit member is provided in one end region of the mask main body in the second direction so as to conform to the shape of the upper part of the nose of the mask wearer. It can take the form.

(Aspect 15)
“The mask according to aspect 6 or 7,
The ear hooking portion is formed integrally with the joint portion and a joint portion joined to the end region while extending in an elongated shape over substantially the entire end region in the second direction. In addition, it is possible to adopt an aspect of “a mask characterized by having an annular portion that forms an ear-hanging space together with the joint portion”.

(Aspect 16)
“The mask according to aspect 15,
The two corners in the second direction of the end region of the mask main body are configured to match the two corners in the second direction of the joint of the ear hook. It is possible to adopt a mode of “a mask characterized by being applied”.

(Aspect 17)
“A mask according to aspect 15 or 16,
The said ear hook part can take the aspect of "the mask characterized by being formed by the punching process by the punching member of the shape corresponding to the said ear hook space".

(Aspect 18)
“The mask according to aspect 6 or 7,
The ear hook is joined to each of both end regions on the first direction of the mask main body,
It is possible to adopt an aspect of “a mask characterized by being configured such that both ear hooks joined to the both end regions are accommodated within the outer shape of the mask main body in a plan view of the mask”.

(Aspect 19)
“The mask according to aspect 18,
A mode of “a mask characterized by having a connecting portion that connects the both ear hanging portions to each other within the outer shape of the mask main body portion” may be adopted.

(Aspect 20)
“The mask according to aspect 19,
A single sheet-like ear-hanging sheet joined so as to fit within the outer shape of the mask body in a plan view of the mask;
The ear hook sheet is configured to extend on the same plane in a state where the both ear hook portions are connected to each other at the connection portion, whereby the outer shape of the mask main body portion in a plan view of the mask. A mode of “a mask characterized in that the both ear hooks are contained in the inside” can be adopted.

(Aspect 21)
“The mask according to aspect 20,
The ear hook sheet has a configuration in which the annular portion of one of the ear hook portions and the annular portion of the other ear hook portion are connected to each other, and the connecting portion is provided in the connecting portion. May be adopted.

(Aspect 22)
“A mask according to any one of aspects 19 to 21,
The connection portion may take a form of a “mask that is configured such that the connection of the connection portion can be released by pulling each ear hook portion by hand”.

(Aspect 23)
“A mask according to any of aspects 19 to 22,
The connection portion may take a form of “a mask characterized by being configured by one or a plurality of connection points”.

DESCRIPTION OF SYMBOLS 10 Mask 11 1st direction 12 2nd direction 13 3rd direction 20 Mask main-body part 20a Flat surface part 20b Outer sheet | seat 20c Intermediate sheet 20d Inner sheet | seat 21 End part area | region 22 Junction point 23 End part area | region 24 Joint point 25 Accommodating space 26 Nose-fit member 27 ２８ 28 Middle region 29 Mouth space 30 Ear hooking portion 30a Ear hooking sheet 31 Joint portion 32 Annular portion 33 Ear hooking space 41, 42, 43 Boundary portion 100 Mask manufacturing apparatus 101 Outer sheet supply apparatus 101a Outer sheet belt DESCRIPTION OF SYMBOLS 102 Inner sheet supply apparatus 102a Inner sheet band 103 Intermediate sheet supply apparatus 103a Intermediate sheet band 104 Sheet stacking apparatus 104a Laminated sheet band 105 Nose fitting insertion apparatus 105a Inserting member 106 Brazing apparatus 107 End cut apparatus 121 Ear hook Sheet feeding device 121a, 121b ear hanging sheet belt 122 punching device 123 die cutter 124 sheet holding surface 125 anvil roll 126 roll surface 131 direction changing device 132 rotating body 133 support shaft 134 direction changing portion 135 sheet holding surface 141 holding roll 142 sheet Holding surface 151 Joining device

Claims (7)

A mask manufacturing method comprising: a mask body part; and an ear hook part connected to the mask body part,
Preparing a mask main body portion that is easy to extend in a high extension direction intersecting a predetermined low extension direction, and transferring the mask main body portion along the low extension direction of the mask main body portion;
A second transporting step of preparing an ear hook that is easy to extend in a high extension direction that intersects a predetermined low extension direction, and transporting the ear hook along the low extension direction of the ear hook;
A joining step for joining the mask main body part for transportation in the first transportation step and the ear hooking part for transportation in the second transportation step;
Relative position change for changing the relative positions of the mask main body and the ear hook so that the low extension direction of the mask main body and the high extension direction of the ear hook substantially match before the joining step. Steps,
A method for manufacturing a mask, comprising: It is a manufacturing method of the mask according to claim 1, Comprising:
In the relative position changing step, the transfer direction of either the mask body part or the ear hooking part is changed from a direction along the low extension direction to a direction along the high extension direction, A method for manufacturing a mask, comprising the step of changing a relative position between a mask main body and the ear hook. It is a manufacturing method of the mask according to claim 2, Comprising:
The mask body is configured in a sheet shape,
In the relative position changing step, the mask main body portion transported in the first transport step is rotated by approximately 90 degrees on the sheet extending surface, thereby changing the transport direction of the mask main body portion in the low extension direction. A method of manufacturing a mask, characterized in that it is a step of changing from a direction along the direction to a direction along the high extension direction. A mask manufactured by the manufacturing method according to any one of claims 1 to 3,
The mask main body and the ear hook are both composed of a sheet-like nonwoven fabric,
The mask body is joined to the end region in the low extension direction of the mask body by fusion bonding, whereby the low extension direction of the mask body is the high extension direction of the ear hook. A mask characterized by being configured to generally match. The mask according to claim 4,
The mask main body has an intermediate region between both end regions in the low extension direction of the mask main body, and a ridge formed in the intermediate region so as to extend in the low extension direction of the mask main body. And
The unfolding operation of the mask main body portion along the high extension direction of the fold is enabled in the intermediate region, whereby the mask main body portion is configured to easily extend in the high extension direction. mask. A mask comprising a mask body and an ear hook connected to the mask body,
The mask body is formed of a sheet-like non-woven fabric, and extends in a predetermined first direction and a second direction intersecting the first direction, and on the first direction. An end region, and
The ear hook is formed of a sheet-like non-woven fabric and joined to the end region by fusion,
The mask body is liable to extend in the second direction than the first direction, and together with the ear shell is extended easily configured in the first direction than the second direction, the A mask characterized in that a low extension direction of the mask main body portion is configured to match a high extension direction of the ear hook portion . The mask according to claim 6,
The mask body has an intermediate region between both end regions in the first direction, and a ridge formed in the intermediate region so as to extend in the first direction,
The unfolding operation along the second direction of the scissors is possible in the intermediate region, and thereby, it is configured to easily extend in the second direction as compared with the first direction. mask.

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