KR20140033032A - Mask manufacturing method, and mask - Google Patents

Abstract

According to the method of manufacturing a mask according to the present invention, a mask main body 20 which is easy to extend in a high elongation direction intersecting with a predetermined low elongation direction is prepared, and the mask main body 20 is subjected to low elongation of the mask main body 20. The first conveyance step to convey along the direction, and the earring part 30 which is easy to be extended in the high elongation direction which cross | intersects a predetermined low elongation direction, and prepares the earring part 30 in the low elongation direction of the said earring part 30. The mask main body before the bonding step which joins together the 2nd conveyance step conveyed along with the mask main body part 20 conveyed by the 1st conveyance step, and the earring part 30 conveyed by the 2nd conveyance step, and the bonding step, A relative position changing step of changing the relative positions of the mask body portion 20 and the earring portion 30 so as to substantially coincide with the low extension direction of the portion 20 and the high extension direction of the earring portion 30.

Description

Mask manufacturing method, mask {MASK MANUFACTURING METHOD, AND MASK}

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

Japanese Laid-Open Patent Publication No. 2007-312963 discloses a method for manufacturing a mask to be mounted on the face of a mask wearer. In this manufacturing method, a plurality of masks are continuously manufactured by jointly conveying the mask main body part covering the face of the mask wearer and the earring part which catches the ear of the said mask wearer, respectively, while joining each other. By the way, in this kind of mask, there exists a direction in which a mask main body part and an earring part tend to be comparatively easy to expand, and the problem that deformation | transformation, distortion, a position shift, etc. of a mask main body part and an earring part arise at the time of conveyance at the time of mask manufacture is assumed. Therefore, in designing this kind of mask, in order to facilitate handling during mask manufacturing, it is required to construct a mask or a method of manufacturing the mask after considering the stretching direction of the mask body portion or the earring portion.

Patent Document 1: Japanese Patent Application Laid-Open No. 2007-312963

Therefore, this invention is made | formed in view of such a point, and makes it a subject to make handling at the time of mask manufacture easy in the mask mounted on the face of a mask wearer.

In order to achieve the said subject, the invention described in each claim is comprised.

The manufacturing method of the mask which concerns on this invention is a manufacturing method of the mask provided with the mask main-body part and the earring part connected to the mask main-body part, Comprising: 1st conveyance step, 2nd conveyance step, bonding step, and relative position change step. do.

The 1st conveyance step prepares the mask main body part which is easy to be extended in the high elongation direction which cross | intersects a predetermined low elongation direction, and becomes a step which conveys this mask main body part along the low elongation direction of the said mask main body part. A 2nd conveyance step is a step which prepares the earring part which is easy to be extended in the high elongation direction which cross | intersects a predetermined low elongation direction, and conveys this earring part along the low elongation direction of the said earring part. The bonding step is a step of joining the mask body portion conveyed in the first conveyance step and the earring part conveyed in the second conveyance step. This bonding step may be performed simultaneously with the conveyance step of a mask main body part or an earring part, or may be performed separately from the said conveyance step. The relative position changing step is a step of changing the relative positions of the mask body part and the earring part so that the low elongation direction of the mask body part and the high extension direction of the earring part substantially coincide before the bonding step. This step includes an aspect in which the mask body portion is moved relative to the earring portion, an aspect in which the earring portion is moved relative to the mask body portion, and an aspect in which both the mask body portion and the earring portion are moved. Thereby, after conveying a mask main body part and an earring part along the direction which is hard to stretch, respectively, a mask main body part and an earring part can be bonded together in the state which made the low extension direction of the mask main body part and the high extension direction of an earring part substantially correspond. That is, the relative positions of the mask body part and the earring part are changed to be different at the time of conveyance and at the time of bonding. Therefore, deformation | transformation, distortion, position shift, etc. of a mask main body part and an earring part can be suppressed at the time of conveyance at the time of mask manufacture, and handling at the time of mask manufacture becomes easy.

In the method of manufacturing a mask according to the present invention, the relative position change step includes the conveying direction of either the mask body portion or the earring portion from the direction along the low elongation direction to the direction along the high elongation direction. It is preferable to become a step of changing the relative position of a mask main-body part and an earring part by switching. Thereby, the relative position of a mask main body part and an earring part can be changed easily by switching the conveyance direction of a mask main body part or an earring part.

In the mask manufacturing method of the further aspect which concerns on this invention, the mask main-body part is comprised in a sheet form, and the relative position change step is made by rotating the mask main-body part conveyed by the 1st conveyance step nearly 90 degrees on the sheet extended surface. It is preferable to become a step of switching the conveyance direction of the said mask main body part from the direction along the low extension direction to the direction along the high extension direction. Thereby, the relative position of a mask main body part and an earring part can be changed easily by switching the conveyance direction of the said mask main body part by the rotation operation | movement of a mask main body part.

The mask which concerns on this invention is comprised as a mask manufactured by the manufacturing method mentioned above. In this mask, both the mask main body part and the earring part are comprised of sheet-shaped nonwoven fabric, and the mask main body part is joined to the end area | region in the low elongation direction of the said mask main body part by fusion by heat or an ultrasonic wave, and accordingly the said It is preferable that the low elongation direction of the mask body portion is configured to substantially coincide with the high elongation direction of the earring portion. Thereby, the mask of the structure which is manufactured in the state which suppressed the deformation | transformation, distortion, a position shift, etc. of a mask main body part and an earring part, and which the low extension direction of a mask main body part substantially matches with the high extension direction of an earring part can be provided.

In the mask of the further aspect which concerns on this invention, the mask main-body part has the intermediate | middle area | region between the both end regions in the low-extension direction of the said mask main-body part, and the wrinkles extended in the low-extension direction of the said mask main-body part in the intermediate | middle area, It is preferable that the wrinkle operation of the mask main body portion along the high elongation direction becomes possible, so that the mask main body part is easily elongated in the high elongation direction. Thereby, the mask of the structure which is manufactured in the state which suppressed the deformation | transformation, distortion, a position shift, etc. in the intermediate | middle area | region of a mask main-body part, can be provided, and the low elongation direction of a mask main-body part is provided substantially coincident with the high elongation direction of an earring part. .

The mask which concerns on this invention is comprised as a mask provided with a mask main-body part and the earring part connected to this mask main-body part. The mask body portion is formed of a sheet-like nonwoven fabric, and has a planar portion extending in a predetermined first direction and a second direction crossing the first direction, and an end region on the first direction. The earring portion is formed of a sheet-shaped nonwoven fabric and is joined to the end region by heat or ultrasonic welding. This mask has a structure in which the mask body part is easier to extend in the second direction than the first direction, and the earring part is easier to extend in the first direction than the second direction. Thereby, at the time of conveyance at the time of mask manufacture, the mask main body part which is easy to be extended in a 2nd direction rather than a 1st direction is conveyed along a 1st direction which is hard to be stretched, and the earring part which is easy to be extended in a 1st direction rather than a 2nd direction, By carrying along the 2nd direction which is hard to stretch | stretch, generation | occurrence | production of the deformation | transformation, distortion, a position shift, etc. of a mask main body part and an earring part can be suppressed, and handling at the time of mask manufacture becomes easy.

In the mask of the further aspect which concerns on this invention, the mask main body part has the intermediate | middle area | region between the both end area | regions in a 1st direction, and the wrinkles extended in a 1st direction, and are formed in an intermediate | middle area, and the 2nd of the wrinkles in an intermediate area | region It is preferable that the expansion | movement operation | movement along a direction becomes possible and it is set as the structure which is easy to be extended in a 2nd direction rather than a 1st direction by this. Thereby, in particular, by conveying the mask main body part which is easy to be extended in a 2nd direction rather than a 1st direction by the wrinkle which extends in a 1st direction in an intermediate area at the time of conveyance at the time of mask manufacture, especially a mask It can suppress that deformation | transformation, distortion, position shift, etc. of a main-body part arise.

As mentioned above, according to this invention, in the mask mounted on the face of a mask wearer, it became possible to make handling at the time of mask manufacture easy.

1 is a plan view when the mask 10 according to the present invention is viewed from the outer surface side.
FIG. 2 is a plan view when the mask 10 in FIG. 1 is viewed from the inner surface side.
FIG. 3 is a diagram illustrating a cross-sectional structure of the mask 10 in FIG. 1 with respect to the AA line.
4 is a diagram illustrating a modification of the cross-sectional structure in FIG. 3.
FIG. 5 is a diagram illustrating a modification of the cross-sectional structure in FIG. 3.
FIG. 6 is a partially enlarged view of region B in FIG. 3.
FIG. 7: is the figure which looked at the expanded state of the mask 10 in FIG. 1 from the outer surface side.
8 is a view of the mask 10 when the mask is worn from the side.
9 is a plan view showing the dimension setting of the earring section 30.
10 is a diagram illustrating an outline of a mask manufacturing apparatus 100.
FIG. 11 is a view showing the direction change device 131 and the holding roll 141 in FIG. 10.
FIG. 12 is a view for explaining the operation of the direction switching unit 134 of the direction switching device 131 in FIG. 11.
FIG. 13 is a diagram showing how the mask body 20 and the earring sheet strip 121b overlap each other in a predetermined arrangement.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of the "mask" which concerns on this invention is described in detail, referring drawings. The "mask" here is comprised so that a mouth may be covered at least by being attached to the face of a mask wearer.

FIG. 1 shows the mask 10 of the present embodiment as seen from the outer surface side, and FIG. 2 shows the mask 10 as seen 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 mounted, and the surface on the opposite side is defined as the outer surface of the mask 10. According to these FIGS. 1 and 2, the mask 10 is connected to the mask body portion 20 and the mask body portion 20, which mainly cover the mouth (the mouth) and the nose (the nasal cavity) of the mask wearer. It becomes the structure containing a pair of earring parts 30 and 30 used for hanging on the ear of a mask wearer. The mask 10 is preferably used as a disposable mask presumed to be used one to several times. Typical applications of the mask 10 include countermeasures against viruses such as colds, measures against pollen, and the like. The mask body part 20 and the pair of earring parts 30 and 30 mentioned here correspond to the "mask body part" and the "earring part" in this invention, respectively.

As shown in FIG. 1, the mask main body 20 has a flat planar portion 20a extending in the first direction 11 and the second direction 12 intersecting the first direction 11, respectively. Has The planar part 20a here is corresponded to the "plane part" in this invention. In addition, the 1st direction 11 and the 2nd direction 12 said here correspond to "the 1st direction" and "the 2nd direction" in this invention, respectively. When the mask main 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 main body 20, and the second direction. The direction 12 is also defined as the longitudinal direction of the mask body 20. In the two end regions 21 and 21 on the first direction 11 of the mask body 20, the junction 22 extends linearly along the second direction 12, respectively. This joining point 22 is comprised as a joining part which fuse | attaches (it is also called "welding") the mask main-body part 20 and each earring part 30 mutually. As fusion | fusing in this case, the thing by heat and the thing by an ultrasonic wave can be used suitably. In addition, in one end region 23 on the second direction 12 of the mask body 20, two joining points 24, 24 extending linearly along the first direction 11 are substantially parallel to each other. It is arranged. These junction points 24 and 24 form an accommodating space 25 inside the mask body portion 20, and the accommodating space 25 has a nose pit member that can be deformed to fit the shape of the upper portion of the nose of the mask wearer. (26) is accommodated. In addition, instead of or in addition to each fusion | melting at the said joining points 22 and 24, joining by an adhesive agent can also be used.

The mask main body 20 includes a plurality of wrinkles (pleats) 27 formed by extending the planar portion 20a in the first direction 11. These corrugations 27 are joined by the joining points 22 in the end region 21 in a state where the corrugations are provided, thus preventing the expansion operation along the second direction 12 in the end region 21. And in the intermediate region 28 between the end portions 21, 21 on the first direction 11. The wrinkles 27 and the intermediate | middle area | region 28 here correspond to "wrinkles" and "middle area" in this invention, respectively.

As shown in FIG. 2, the pair of earring portions 30 and 30 are formed by the earring sheet 30a bonded to the inner surface side of the mask body portion 20. This earring sheet 30a consists of a single sheet-like nonwoven fabric. That is, in this earring sheet 30a, two earring portions 30, 30 extend on the same plane while being connected to each other. In addition, the mask 10 is comprised so that the earring sheet 30a may be accommodated in the outer shape of the mask main-body part 20 in plan view of the said mask 10. Thereby, by joining the overlap part of the mask main-body part 20 and each earring part 30 as it is, a mask can be manufactured, and handling, especially when manufacturing a mask continuously becomes easy. In addition, since both ear hook portions 30 and 30 are constituted by the single sheet-shaped earring sheet 30a, the number of parts during mask manufacture can be suppressed. In this case, the length of the 1st direction 11 or the 2nd direction 12 of the mask main-body part 20 is the 1st direction 11 or 2nd direction of the earring sheet 30a (earring part 30). The length of the mask main body part 20 in the 1st direction 11 or the 2nd direction 12 of the mask main body 20 may be sufficient as the structure of earring sheet 30a (earring part 30). The structure which exceeds the length of the 1st direction 11 or the 2nd direction 12 of may be sufficient. As a result, the pair of earrings 30 and 30 are accommodated in the outer shape of the mask body 20 in the plan view of the mask 10.

Each earring portion 30 of the earring sheet 30a has a joining portion 31 and an annular portion 32 formed integrally with each other by a single sheet-like nonwoven fabric, and the joining portion 31 has an end portion of the mask body portion 20. The region 21 is joined by fusion through the junction 22. That is, the junction part 31 of one earring part 30 is bonded to one end area 21 of the mask main body part 20, and the other end area 21 of the mask main body part 20 is bonded. The junction part 31 of the other earring part 30 is joined. Thereby, the structure of the earring part 30 and the joining structure of the junction part 31 and the end area 21 can be simplified. In particular, the junction part 31 is comprised as the site | part which was fused to the end area 21 through the junction point 22, extending over almost the whole of the end area 21 with respect to the 2nd direction 12. As shown in FIG. In this case, the two corner portions (upper and lower corner portions in FIG. 2) in the second direction 12 of the end region 21 of the mask body portion 20 are each of the joint portion 31 of the earring portion 30. It is preferable to coincide with two corner portions (upper and lower corner portions in FIG. 2) with respect to the second direction 12.

The joining portion 31 and the annular portion 32 of each of the earring portions 30 are annularly connected to each other, thereby forming an earring space 33 which is an opening portion of the earring portion 30. That is, the annular part 32 is comprised as a site | part which forms the earring space 33 with the junction part 31. As shown in FIG. This earring space 33 is formed between the junction part 31 and the annular part 32 in a closed state, and performs the function of accommodating the ear when the annular part 32 is caught in the ear of a mask wearer. Thereby, the earring part 30 which has the earring space 33 can be manufactured by the punching process by the punching member of the simple shape corresponding to the earring space 33. As a modification, the earring space 33 may be formed by the opening portion in which the earring portion 30 is cut.

In addition, the earring sheet 30a is provided with a connecting portion 34 at a connection portion between the annular portion 32 of one earring portion 30 and the annular portion 32 of the other earring portion 30. . Thereby, in the single sheet-shaped earring sheet 30a, the structure in which both the ear hook portions 30 and 30 are connected to each other in the annular portion 32 is realized. This connection part 34 is comprised as the connection part which connects one earring part 30 and the other earring part 30 within the outer shape of the mask main body part 20. As shown in FIG. Thereby, the ear-hooking parts 30 and 30 are previously connected by the connection part 34, and the handling in the integrated state is attained. In addition, it is easily recognized that the mask 10 is in an unused state by forming the connecting portions 34 that connect the ear hook portions 30 and 30 to each other. Moreover, this connection part 34 is comprised so that connection of the said connection part 34 can be released | released by hand-tensioning each earring part 30, ie, it has a connection strength below the prescribed tensile load. For this reason, it is preferable to comprise the connection part 34 typically using the form which connects one annular part 32 and the other annular part 32 with each other through a perforation or an adhesive agent. Accordingly, the mask wearer can easily release the connection at the connecting portion 34 of the pair of earrings 30 and 30 to prepare for the use of the mask. The connecting portion 34 may be a connecting portion consisting of one or a plurality of points, or may be a linear connecting portion extending along the second direction 12. In addition, the connection part 34 may be a connection part which has the connection strength of the grade which requires the cutting process by scissors or a cutter. In addition, the ear hook portions 30 and 30 may be formed of separate members, instead of being integrally formed by a single earring sheet 30a. When it is a separate member, the structure which extends on the same plane in the state which both ear hook parts 30 and 30 were connected to each other at the connection part may be sufficient, or the structure which overlaps each other at the connection part may be sufficient.

3 and 4 are referred to for the cross-sectional structure of the mask body 20 having the above configuration. The third direction 13 shown in these figures is configured as a direction intersecting both the first direction 11 and the second direction 12. The third direction 13 is a sheet thickness direction of the mask body 20 or the earring sheet 30a (earring portion 30), or the mask body portion 20 and the earring sheet 30a (earring portion). It is also prescribed | regulated as the superimposition direction of (30). According to FIG. 3, in the some wrinkles 27, the outer surface side of the mask main-body part 20 has folded convex gold (also called "folded gold"-"wrinkle convex gold") up and down outside, and the mask main-body part It is comprised as the wrinkle-providing form (it is also called "box folding") in which the folded convex gold of the inner surface side of 20 was formed in the butt | matching shape. 3 can be suitably selected as needed, and the wrinkles provided by repeating the convex-fold folded on the outer surface side of the mask main body 20 as shown in FIG. 4, for example as shown in FIG. In addition, the form and the wrinkle-providing form which repeatedly make the convex-fold folded on the inner surface side of the mask main-body part 20 as shown in FIG. 5 can also be employ | adopted.

As shown in FIG. 6, the mask main-body part 20 in FIG. 3 further contains the outer sheet 20b which consists of sheet type nonwoven fabric, the intermediate sheet 20c, and the inner sheet 20d, These sheets Has a three-layer structure that is sequentially superposed on the third direction (13).

The outer sheet 20b has an outer surface of the mask body 20, that is, a surface exposed to the outside in a mask wearing state. The inner sheet 20d has an inner surface of the mask body 20, that is, a surface facing the mask wearer in a mask wearing state. Any of these outer sheets 20b and inner sheets 20d is composed of a known spunbond (SB) nonwoven fabric, a point bond (PB) nonwoven fabric, a spunlace (SL) nonwoven fabric, an air through (AT) nonwoven fabric, and the like. It is preferable that the unit weight is suitably set, for example in the range of 10-100 g / m <^2> . As a result, desired breathability of the mask body 20 is ensured.

The intermediate sheet 20c is configured as a filter sheet having a predetermined collecting property against dust, bacteria, viruses, and the like. It is preferable that this intermediate sheet 20c is comprised by the known melt blow (MB) nonwoven fabric, etc., and the unit weight is suitably set in the range of 1-50 g / m <^2> , for example. As a result, desired breathability of the mask body 20 is ensured, and desired trapping ability is ensured. In addition, a structure in which the intermediate sheet 20c is integrated with the outer sheet 20b using a hot melt adhesive (HMA) can also be adopted.

On the other hand, as the material of the earring part 30, already known stretch spun bond (SB) nonwoven fabrics, stretch spun bond microweb spun bond (SMS) nonwoven fabrics, stretch spun bond film spun bond nonwoven fabrics, and stretch spun lace nonwoven fabrics It is preferable that a stretch hot melt adhesive (HMA) nonwoven fabric or the like can be used, and the unit weight of the nonwoven fabric is appropriately set in the range of ^{20 to} 120 g / m ² , for example. Accordingly, desired elasticity of the earring part 30 is secured.

FIG. 7 shows a state in which the plurality of wrinkles 27 of the mask body 20 are deployed along the second direction 12. As shown in FIG. 7, the mask main body 20 at the time of use of a mask prevents the expansion operation | movement along the 2nd direction 12 of the some wrinkles 27 in each end area 21, and the intermediate area | region In 28, the expansion | movement operation (also called "expansion operation | movement of the mask main body part 20") of the some wrinkles 27 along the 2nd direction 12 is attained. At this time, each of the end regions 21 has a curved shape without extending the length along the second direction 12, while the middle region 28 has a length L3 along the second direction 12 As it expands, it forms a curved shape. As a result, the mask body 20 forms 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 body 20 and the mask wearer.

FIG. 8 shows the mask wearer wearing the mask 10 in the state shown in FIG. 7 as viewed from the side. According to FIG. 8, the annular portion 32 of the earring portion 30 is caught by the mask wearer's ear so that the face of the mask wearer is covered by the mask body portion 20. At this time, since the end region 21 of the mask main body 20 has a curved shape, a gap tends to occur between the end region 21 and the ball portion of the mask wearer. Therefore, the mask 10 of this embodiment has the structure (henceforth a "gap suppression mechanism") demonstrated below in order to suppress this gap.

<Long extension>

That is, in the mask 10 of this embodiment, the gap suppression mechanism has the joining part 31 of the earring part 30 being elongate over almost the whole of the end area 21 with respect to the 2nd direction 12. A long extension configured to extend. As a result, the tension generated in the annular portion 32 when the mask is worn acts on the bonding portion 31, so that the bonding portion 31 follows the shape of the ball portion of the mask wearer, thereby improving adhesion to the bowl portion. As shown in Fig. 1, in particular, it is possible to suppress the occurrence of a gap in the boundary portion 41 between the end region 21 and the face of the mask wearer. At this time, the upper edge portion of the bonding portion 31 of the earring portion 30 is connected to the upper edge portion of the end region 21 of the mask body portion 20, and the bonding portion 31 of the earring portion 30 is also connected. The lower edge part of the ()) is in contact with the lower edge part of the end region 21 of the mask body part 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 face of the mask wearer. It can be suppressed by negative. In this way, a gap is formed between the end region 21 of the mask body part 20 and the face of the mask wearer by the junction part 31 of the earring part 30 with respect to the second direction 12. It can suppress over a wide range of -43).

In addition, the gap suppressing mechanism can further exhibit a gap suppression effect by including various dimension setting portions and curved portions in which the configuration of the mask body portion 20 or the earring portion 30 is embodied as follows.

<1st dimension setting part>

As shown in FIG. 9, in this embodiment, the length of the 1st direction 11 of the junction part 31 is set to a [mm], and the 2nd direction 12 of the earring space 33 of the junction part 31 is shown. When the length that defines the distance of) is b [mm], and the constant value preselected from the dimension values from 10 mm to 70 mm is set to C [mm], the relationship of b = 2a + C is established. It is preferable that the first dimension setting section be configured by the set earring section 30. Thereby, by increasing the following effect of the junction part 31 with respect to the shape of the ball part of a mask wearer, the dimension setting of the earring part which can reliably suppress the clearance gap which arises in the above-mentioned boundary parts 41-43 can be implement | achieved.

<2nd dimension setting part>

Moreover, it is preferable that the 2nd dimension setting part is comprised by the earring part 30 set so that the length a of the 1st direction 11 of the junction part 31 may be a dimension value of 30 mm or less. That is, it is preferable that the junction part 31 of the earring part 30 has the extension length within a predetermined range with respect to the 1st direction 11. As a result, on the one hand, the effect of suppressing the gap occurring in the boundary portion 41 described above is suppressed by increasing the length a, and on the other hand, on the other hand, the junction part 31 due to excessively increasing the length a. By suppressing the occurrence of wrinkles in), the effect of preventing the appearance of deterioration is obtained.

<Third dimension setting section>

Moreover, it is preferable that the 3rd dimension setting part is comprised by the earring part 30 set so that the sheet | seat width d [mm] of the annular part 32 may be a dimension value from 10 mm to 30 mm. That is, the annular portion 32 of the earring portion 30 preferably has a sheet width within a predetermined range. As a result, on the one hand, the effect that the sheet width d of the annular portion 32 is too thin to give the mask wearer the impression that the ear hurts can be prevented, and on the other hand, the loop The sheet | seat width d of the mold part 32 is too thick, and the effect of being able to prevent aesthetics from worsening is acquired.

<4th dimension setting part>

Moreover, it is preferable that the 4th dimension setting part is comprised by the mask main-body part 20 set so that the length L1 [mm] of the 1st direction 11 may be 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. As a result, on the one hand, an effect is obtained that it is possible to prevent imparting anxiety to the mask wearer that the dimension in the first direction 11 of the mask body portion 20 is too small, and on the other hand, the mask The effect that the main body 20 is too large in the first direction 11 to produce a gap, a feeling of fitting deteriorates, and deteriorates aesthetic appearance is obtained.

<Fifth dimension setting part>

Moreover, it is preferable that the 5th dimension setting part is comprised by the mask main-body part 20 set so that the length L2 [mm] of the 2nd direction 12 may be a dimension value from 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. As a result, on the one hand, an effect is obtained that it is possible to prevent imparting anxiety to the mask wearer that the dimension in the second direction 12 of the mask body portion 20 is too small, and on the other hand, the mask The effect that the main body 20 is too large in the second direction 12 to cause a gap, deterioration of fit, and deterioration of aesthetics is obtained.

<6th dimension setting part>

Further, when the plurality of corrugations 27 are developed by the unfolding operation, the unfolding length L3 [mm] along the second direction 12 of the intermediate region 28 has a dimension value of 135 mm to 175 mm. It is preferable that the 6th dimension setting part is comprised by the mask main body part 20 set so that it may become. That is, it is preferable that the pleats 27 are comprised so that the mask main-body part 20 may develop in the development length in the predetermined range along the 2nd direction 12. FIG. Thereby, the effect that a clearance gap can be suppressed is obtained by raising the fitting feeling of the mask main-body part 20 with respect to the face of a mask wearer.

<Curve part>

In the mask body 20, the end region 21 is curved in accordance with the unfolding operation of the plurality of wrinkles 27 in the intermediate region 28, thereby suppressing the gap between the junction 31 and the face of the mask wearer. It is preferable to provide the curved part to make. This curved portion is typically constituted by an end region 21 set such that the radius of curvature at the time of bending becomes relatively large or the length L2 along the second direction 12 at the time of bending is set to be relatively small. . As a result, when the end region 21 of the mask body portion 20 is curved when the mask is attached, the gap caused by the curve is increased by increasing the following effect of the end region 21 on the shape of the ball portion of the mask wearer. Can be suppressed. In addition, this curved part has the length along the 2nd direction 12 of the edge part 21 with respect to the said radius of curvature when the curvature radius at the time of the above-mentioned curvature of the end area 21 is set to R [mm]. It is preferable that the end region 21 is set such that the ratio L2 / R of L2) [mm] is a value from 2 to 3.5. Thereby, the appropriate dimension setting of the curved part which can suppress generation | occurrence | production of the clearance gap which arises when the edge area | region of the mask main body part is curved at the time of mask mounting can be implement | achieved.

The manufacturing apparatus and manufacturing method regarding the mask 10 of the said structure are demonstrated below, referring FIGS. 10-13.

10, the outline | summary of the mask manufacturing apparatus 100 is shown. This manufacturing apparatus 100 is an outer sheet supply apparatus 101, an inner sheet supply apparatus 102, an intermediate sheet supply apparatus 103, the sheet | seat superimposition apparatus 104, the nose pit insertion apparatus 105, and a pleating apparatus. It becomes the structure containing the 106, the end cut apparatus 107, the earring sheet supply apparatus 121, the punching apparatus 122, the redirection device 131, the holding roll 141, and the bonding apparatus 151. As shown in FIG. In this mask manufacturing apparatus 100, said each component which comprises the said apparatus may be abbreviate | omitted suitably, or another component may be added.

The outer sheet supply device 101 is configured as an apparatus for preparing and supplying a long strip-shaped outer sheet strip 101a for forming the outer sheet 20b described above. Similarly, the inner sheet supply device 102 is a device for preparing and supplying a long belt-shaped inner sheet belt 102a for forming the inner sheet 20d described above, and the intermediate sheet supply device 103 is It is comprised as an apparatus which prepares and supplies the elongate strip | belt-shaped intermediate sheet strip | tube 103a for forming the intermediate sheet | seat 20c mentioned above. The sheet stacking device 104 forms the laminated sheet strip 104a of a three-layered structure in which a middle sheet strip 103a is sandwiched between the outer sheet strip 101a and the inner sheet strip 102a, thereby forming the laminated sheet strip 104a. It is comprised as an apparatus for conveying the strip | belt 104a. The nose pit insertion apparatus 105 is configured as an apparatus for inserting the insertion member 105a for forming the nose pit member 26 (refer FIG. 1) mentioned above in the accommodation space of the laminated sheet strip 104a. As for the laminated sheet strip 104a in which the insertion member 105a was inserted, the wrinkles processing of the wrinkles 27 is performed by the wrinkle-folding apparatus 106, and after that, the end cut apparatus 107 makes individual masks It is cut into the main body 20. Each mask main body 20 is conveyed to the bonding apparatus 151, after predetermined | prescribed direction change is made by the direction changer 131, and is hold | maintained by the holding roll 141 after that.

As described above, the sheet stacking device 104, the nose pit inserting device 105, and the pleating device 106 from the outer sheet supply device 101, the inner sheet supply device 102, and the intermediate sheet supply device 103. ), A series of facilities reaching the holding roll 141 via the end cut device 107 and the direction change device 131 intersect with a predetermined low extension direction (first direction 11 in FIG. 1). A mask main body 20 which is easy to extend in the second direction 12 in FIG. 1 is prepared, and the mask main body 20 is moved in the low elongation direction of the mask main body 20 (the first direction in FIG. 1). It is controlled to perform the conveyance step (1st conveyance step) conveyed along (11). This conveyance step is corresponded to "the 1st conveyance step" in this invention.

On the other hand, the earring sheet supply device 121 is configured as an apparatus for preparing and supplying an elongated belt-shaped earring sheet strip 121a for forming a plurality of earring sheets 30a (a pair of earring portions 30 and 30). . That is, the earring sheet strip 121a includes a plurality of pairs of earring portions 30 and 30. The earring sheet strip 121a is configured as a nonwoven fabric sheet that is more likely to extend in the direction intersecting the long extension direction (also referred to as the "high extension direction") than the long extension direction (also referred to as the "extension direction"). This earring sheet strip 121a is punched by the punching device 122 while being conveyed along the low elongation direction. The punching apparatus 122 consists of the die cutter 123 and the anvil roll 125. As shown in FIG. The die cutter 123 holds the convex punching edge of the sheet holding surface 124 on the sheet holding surface 124 by a suction device (not shown), and thus, the anvil roll 125 The earring sheet strip 121a is punched out by rotationally pressing the roll surface 126. Specifically, by the punching process, only the portion corresponding to the earring portion 30 in the earring sheet strip 121a is punched out, thereby including a plurality of earring sheets 30a in FIG. The earring sheet strip 121b including the earring portion 30 is formed. This earring sheet strip 121b in which the punching process was performed is conveyed to the bonding apparatus 151 with the mask main body part 20 hold | maintained by the holding roll 141 after that.

As described above, a series of equipment from the earring sheet supply device 121 to the bonding device 151 via the punching device 122 intersects with a predetermined low extension direction (second direction 12 in FIG. 1). Prepare an earring sheet strip 121b (earring sheet strip including a plurality of pairs of earring portions 30) that is easy to extend in the high elongation direction (first direction 11 in FIG. 2). It is controlled to perform the conveyance step (2nd conveyance step) which conveys 121b along the low elongation direction (2nd direction 12 in FIG. 1) of the earring part 30. FIG. This conveyance step is corresponded to "the 2nd conveyance step" in this invention.

Then, each mask main body 20 is continuously introduced into the bonding apparatus 151 with the earring sheet strip 121b, and is bonded to the earring sheet strip 121b. That is, this bonding apparatus 151 has the mask main body 20 conveyed by the 1st conveyance step mentioned above, and the earring sheet strip 121b conveyed by the 2nd conveyance step mentioned above (plural pair of earring parts 30). ) Is controlled so as to perform a joining step of joining the nonwoven fabric sheets)). This bonding step may be performed in parallel with the conveyance step of the mask main body 20 and the earring sheet strip 121b, or may be performed separately from the conveyance step. This joining step corresponds to the "joining step" in this invention. Thereafter, various final post-processes, such as a process of cutting the extra protruding portions, are performed, whereby the mask 10 in FIG. 1 composed of the mask body portion 20 and the pair of earring portions 30 is manufactured. do.

Reference is made to FIG. 11 regarding the specific configurations of the above-described direction change device 131 and the holding roll 141. According to FIG. 11, the direction switching device 131 includes a rotating body 132 which is rotated in the direction of the arrow 130 in the drawing (counterclockwise direction) and a support shaft 133 on the outer circumferential surface of the rotating body 132. And a plurality of (12 in FIG. 11) redirection portions, respectively attached via. Each direction change part 134 rotates around the support shaft 133 in the state which sucked and hold | maintained one mask main body part 20 to the sheet holding surface 135 by the suction device (not shown), The mask main body 20 is conveyed to the holding roll 141 side at the same time as the mask main body 20 is subjected to the redirection process and the rotating body 132 rotates. The holding roll 141 has the rotating body 142 which rotates to the arrow 140 direction (clockwise direction) in drawing, and sucks the some mask main-body part 20 conveyed from the direction switching apparatus 131. It rotates, holding | maintaining on the sheet holding surface 142 by the apparatus (not shown).

By the way, each mask main body part 20 tends to be extended in the 2nd direction 12 rather than the 1st direction 11 by the influence of the wrinkles 27 etc., Therefore, at the time of conveyance at the time of mask manufacture, the said mask main body The problem that deformation | transformation, distortion, a position shift, etc. of the part 20 generate | occur | produce is assumed. Here, with respect to the mask main body 20, the first direction 11 in FIG. 1 becomes a low elongation direction with a relatively low degree of elongation, and the second direction 12 in FIG. 1 has a relatively high elongation degree. It is comprised as an extension direction. On the other hand, with respect to each of the earring portions 30, the second direction 12 in Fig. 2 becomes a low elongation direction with a relatively low degree of elongation, and the first direction 11 in Fig. 2 has a relatively high elongation degree. It is comprised as an extension direction. In order to suppress the above-mentioned problem, it is necessary to convey the said mask main body part 20 along the 1st direction 11 which is hard to extend | elong than the 2nd direction 12. As shown in FIG. On the other hand, each mask main body 20 is a mask so that at the time of bonding with the earring sheet strip 121b, the low extension direction of the said mask main body part 20 and the high extension direction of the earring sheet strip 121b correspond substantially, ie, a mask. The main body 20 and the pair of earrings 30 need to be arranged as shown in FIG.

So, in this embodiment, the conveyance direction of each mask main-body part 20 in the 1st conveyance step mentioned above along the low extension direction (the 1st direction 11 in FIG. 1) of the said mask main-body part 20 is carried out. It is based on the direction. Thereby, it can suppress that deformation | transformation, distortion, position shift, etc. of the mask main-body part 20 arise at the time of conveyance at the time of mask manufacture, and therefore handling at the time of mask manufacture becomes easy. On the other hand, immediately before the above-mentioned joining step of joining each mask main body 20 and the earring sheet strip 121b to each other, the mask main body portions (with respect to the earring sheet strip 121b) by the redirection device 131 ( More specifically, the conveyance direction of each mask main body part 20 is changed from the direction along the low extension direction to the direction along the high extension direction so that the relative position of 20) may be changed. Thereby, before the bonding step, the mask main body 20 and the earring sheet strips (so that the low elongation direction of the mask main body 20 and the high elongation directions of the earring sheet strip 121b (earring portion 30) approximately coincide with each other). 121b) (relative position of earring part 30) is changed. Therefore, this step by the direction change device 131 is corresponded to the "relative position change step" in this invention. Moreover, using the earring sheet 30a mentioned above instead of the earring sheet strip 121b, the conveyance direction of this earring sheet 30a or the mask main-body part 20 is the high extension direction in the direction along the low extension direction. By switching in the direction along the direction, it is possible to configure to change the relative positions of the mask body 20 and the earring portion 30.

Here, FIG. 12 is referred for the specific process of each direction change part 134 in the said direction change device 131. As shown in FIG. In FIG. 12, the case where the direction change part 134 is in the position at 12 o'clock is shown in (a) in the figure, and the case where the direction change part 134 is in the position at 9 o'clock is shown in (b) in the figure. In addition, the case where the direction change part 134 is in the position at 6 o'clock is shown by (c) in a figure. According to FIG. 12, each direction change part 134 passes the circumference of the rotating body 132 from the position of 12 o'clock (top dead center) to the position of 6 o'clock (bottom dead center) from the position of 9 o'clock. In the process of rotating along the direction, the direction changing process is performed by rotating about 90 degrees clockwise about the support shaft 133. Thereby, the mask main-body part 20 hold | maintained on the sheet holding surface 135 of each direction change part 134 rotates about 90 degrees on the sheet extension surface. Each direction change part 134 transmits each mask main body part 20 to the holding roll 141 side, when it rotates to the position (lower dead center) of the six o'clock. Then, each direction change part 134 passes the circumference | surroundings of the rotating body 132 from the position of 6 o'clock (top dead center) to the position of 3 o'clock in the state which canceled holding | maintaining of each mask main body part 20. FIG. It rotates along the direction of the arrow 130 to the position (lower dead center) at 12 o'clock, and rotates 90 degrees clockwise about the support shaft 133. In this way, each direction change part 134 again rotates to the position (top dead center) at 12 o'clock, and hold | maintains the next mask main-body part 20. FIG.

13 is referred to for the state in which the mask main body 20 and the earring sheet strip 121b overlap each other in a predetermined arrangement. According to FIG. 13, in the sheet holding surface 142 of the holding roll 141, each mask main body 20 is along the conveyance direction (arrow 140 direction) which cross | intersects the extending direction of the wrinkles 27, That is, it is conveyed along the high elongation direction of the mask main body 20. On the other hand, in the sheet holding surface 124 of the die cutter 123, the earring sheet strip 121b is along the conveying direction (arrow 120 direction) that intersects the connection direction of the pair of earring portions 30, that is, It is conveyed along the direction of low elongation of the earring sheet strip 121b (earring portion 30). Thereby, each mask main body 20 and the earring sheet strip 121b are made so that the low extension direction of the mask main body 20 and the high extension direction of the earring sheet strip 121b (earring part 30) may correspond substantially. They overlap each other in the arranged arrangement state, are conveyed to the bonding apparatus 151 in the arrangement state, and are mutually joined. Therefore, according to this embodiment, after conveying the mask main body 20 and the earring sheet strip 121b along the direction which is hard to stretch, respectively, the direction of the low elongation of the mask main body 20 and the earring sheet strip 121b ( The mask main body 20 and the earring sheet strip 121b can be bonded to each other in a state where the high extension direction of the earring portion 30 is substantially coincident with each other.

In the above-described manufacturing method, both of the mask main body 20 and the earring part 30 are moved by bonding the mask main body 20 and the earring part 30 (earring sheet strip 121b). Although the case where the relative position of is changed was described, in this invention, the mask is moved with respect to the earring part 30 of the fixed state by moving the earring part 30 with respect to the mask main body part 20 of the fixed state, or By moving the main body 20, the relative positions of the two may be changed.

(Other Embodiments)

In addition, this invention is not limited only to embodiment mentioned above, Various application and a deformation | transformation are conceivable. For example, each of the following forms may be implemented by applying the above embodiment.

In the said embodiment, although the case where the mask main-body part 20 was made into the three-layered structure which consists of three sheets of sheet nonwoven fabric was described, in this invention, the number, type, and number of laminated sheets of a sheet nonwoven fabric are suitably as needed. You can choose.

In addition, in the said embodiment, although the mask of the disposable type based on one use or several uses was described, after wash | cleaning etc. are performed by selecting the material of the mask main-body part 20 and the earring part 30 suitably, The present invention can also be applied to a mask of a type that can be used repeatedly.

When based on description of the said embodiment and various changes, in this invention, each of the following aspects can be employ | adopted.

(Mode 1)

"A mask manufacturing method comprising a mask body portion and an earring portion connected to the mask body portion,

A first conveyance step of preparing a mask body portion that is easy to extend in a high extension direction intersecting a predetermined low extension direction, and conveying the mask body portion along a low extension direction of the mask body portion;

A second conveyance step of preparing an earring portion that is easy to extend in a high elongation direction intersecting with a predetermined low elongation direction, and conveying the earring part along the low elongation direction of the earring part;

A bonding step of joining the mask body portion conveyed in the first conveyance step and the earring part conveyed in the second conveyance step;

Before the joining step, a relative position changing step of changing the relative positions of the mask body portion and the earring portion such that the low extension direction of the mask body portion and the high extension direction of the earring portion are substantially coincident with each other.

It can employ | adopt the aspect which includes the method of manufacturing the mask characterized by including.

(Mode 2)

`` A method for producing a mask according to aspect 1,

In the relative position changing step, the conveyance direction of one of the mask body portion and the earring portion is changed from the direction along the low elongation direction to the direction along the high elongation direction, whereby The method of manufacturing a mask, which is a step of changing the position, can be adopted.

(Aspect 3)

`` A method for producing a mask according to aspect 2,

The mask body portion is configured in a sheet shape,

The said relative position change step rotates the said mask main body part conveyed by the said 1st conveyance step by about 90 degrees on the sheet extension surface, and rotates the conveyance direction of the said mask main body part in the direction along the low elongation direction, and its high extension direction The method of manufacturing a mask, which is a step of switching in the direction along the direction of the cross-section, can be adopted.

(Aspect 4)

"A mask manufactured by the manufacturing method in any one of aspect 1-3,

The mask body portion and the earring portion are all composed of a sheet-shaped nonwoven fabric,

The mask body portion is configured such that the earring portion is joined to the end region on the mask body portion in the low elongation direction by fusion welding, so that the low elongation direction of the mask body portion coincides with the high elongation direction of the earring portion. Mask "can be employed.

(Aspect 5)

"A mask as described in aspect 4,

The mask body portion has an intermediate region between both end regions in the low extension direction of the mask body portion, and a wrinkle formed in the intermediate region extending in the low extension direction of the mask body portion, and the mask body portion of the wrinkle in the intermediate region. The expansion operation | movement along a high elongation direction becomes possible, and the mask body characterized by the structure which is easy to extend | stretch in the high elongation direction by this "can be employ | adopted.

(Aspect 6)

"A mask having a mask body portion and an earring portion connected to the mask body portion,

The mask body portion is formed of a sheet-shaped nonwoven fabric, and has a planar portion extending in a predetermined first direction and a second direction crossing the first direction, and an end region on the first direction,

The earring portion is formed of a sheet-shaped nonwoven fabric and is joined to the end region by fusion welding.

The mask main body part is easier to extend in the second direction than the first direction, and the earring part is configured to be easily extended in the first direction than the second direction. have.

(Aspect 7)

"A mask as described in aspect 6,

The mask body portion has an intermediate region between both end regions on the first direction, and a corrugation extending in the first direction in the intermediate region, wherein the mask body portion is developed along the second direction of the corrugation in the intermediate region. It becomes possible, and by this, the aspect which is the structure which is easy to extend | stretch to the said 2nd direction rather than the said 1st direction "can be employ | adopted.

(Aspect 8)

As the method for producing a mask according to any one of aspects 1 to 3,

The said mask main body part is a structure which arrange | positioned the intermediate sheet | seat between an outer sheet | seat and an inner sheet, The said 1st conveyance step is a long strip | belt-shaped outer sheet strip | belt for forming the said outer sheet, and the long sheet | seat for forming the said inner sheet | seat Cutting the laminated sheet strip into the individual mask body portions while forming a laminated sheet strip having a three-layer structure in which a long strip-shaped intermediate sheet strip for forming the intermediate sheet is sandwiched between strip-shaped inner sheet strips. It can employ | adopt the aspect which includes the method of manufacturing the mask characterized by including.

(Aspect 9)

`` A method for producing a mask according to aspect 8,

The first conveyance step includes a step of inserting an insertion member for forming a nose pit member that is deformable to suit the shape of the upper portion of the nose of the mask wearer into the accommodation space of the laminated sheet strip. Manufacturing method ”can be employed.

(Aspect 10)

`` A method for producing a mask according to aspect 8 or 9,

The said 1st conveyance step includes the step of forming the wrinkles extended in a predetermined direction in the said laminated sheet strip ", The aspect of the method of manufacturing a mask" can be employ | adopted.

(Aspect 11)

As the method for producing a mask according to any one of aspects 1 to 3,

The said 2nd conveyance step includes the process of conveying the elongate strip | belt-shaped earring sheet strip | belt which a plurality of pairs of said earring parts are included, "The manufacturing method of the mask" can be employ | adopted.

(Aspect 12)

`` A method for producing a mask according to aspect 11,

The said 2nd conveyance step includes the process of punching other than the site | part corresponded to the said earring part among the said earring sheet strips, "The manufacturing method of the mask" can be employ | adopted.

(Aspect 13)

`` A method for producing a mask according to aspect 3,

In the relative position changing step, the mask main body is moved on the sheet extending surface by rotating the direction changing part by 90 degrees around a predetermined support axis while the mask main body is sucked and held on the sheet holding surface of the direction changing part. The method of manufacturing a mask, which is a step of rotating 90 degrees, can be adopted.

(Aspect 14)

As the mask according to the aspect 6 or 7,

The nose pit member which can be deformed so that it may be adapted to the shape of the upper part of the nose of a mask wearer is formed in the one end area | region on the said 2nd direction of the said mask main body part "aspect can be employ | adopted.

(Aspect 15)

As the mask according to the aspect 6 or 7,

The earring portion is formed integrally with the junction portion and the junction portion joined to the end region while being elongated over almost the entirety of the end region with respect to the second direction and simultaneously forming an earring space with the junction portion. And a mask having an annular portion ”can be adopted.

(Aspect 16)

"A mask as described in aspect 15,

A mask characterized in that the two corner portions in the second direction of the end region of the mask body portion are respectively matched to the two corner portions in the second direction of the bonding portion of the earring portion. Can be adopted.

(Aspect 17)

As a mask according to “Aspect 15 or 16,

The said earring part can employ | adopt the aspect of "the mask formed by the punching process by the punching member of the shape corresponding to the said earring space."

(Aspect 18)

As the mask according to the aspect 6 or 7,

The earring portion is joined to each of both end regions on the first direction of the mask body portion,

The mask which is comprised so that the ear-hook part joined to the said both end area | region may be accommodated in the external shape of the said mask main body part from the planar view of the said mask. "

(Aspect 19)

`` A mask according to aspect 18,

The both ears hook part has a connection part which connects with each other in the external shape of the said mask main body part ", and the aspect of the mask" can be employ | adopted.

(Aspect 20)

"A mask as described in aspect 19,

A single sheet-shaped earring sheet joined to be accommodated in an outer shape of the mask body in a plan view of the mask,

The earring sheet is configured to extend on the same plane in a state in which both ear hook portions are connected to each other at the connection portion, and thus the ear hook portion is accommodated in an outer shape of the mask body portion when viewed from the plane of the mask. Mask ”to be used.

(Aspect 21)

"A mask as described in aspect 20,

The said earring sheet is a structure in which the said annular part of one said earring part and the said annular part of the other said earring part are mutually connected, and the said connection part is formed in the connection part. " It can be adopted.

(Aspect 22)

As the mask according to any one of aspects 19 to 21,

The said connection part can employ | adopt the aspect of the mask "which is comprised so that connection of the said connection part can be released by tensioning each earring part by hand.

(Aspect 23)

As a mask as described in any one of "aspect 19-22,

The said connection part can employ | adopt an aspect called "the mask characterized by consisting of 1 or some connection point."

10: mask
11: first direction
12: second direction
13: third direction
20: mask body portion
20a: flat part
20b: outer sheet
20c: middle sheet
20d: inner sheet
21: end area
22: junction
23: end area
24: junction
25: accommodation space
26: Nose Feet Missing
27: wrinkle
28: middle area
29: mouth space
30: earring part
30a: earring sheet
31: junction
32: annular part
33: Earring Space
41, 42, 43: boundary
100: mask manufacturing apparatus
101: outer sheet feeder
101a: outer seat strip
102: inner sheet feeder
102a: inner sheet girdle
103: intermediate sheet feeder
103a: middle seat strip
104: sheet stacking device
104a: laminated sheet strip
105: nose feet insertion device
105a: insertion member
106: creasing device
107: end cut device
121: Earring Sheet Feeder
121a, 121b: earring sheet strips
122: punching device
123: die cutter
124: sheet holding surface
125: anvil roll
126: roll surface
131: redirection device
132: rotating body
133: support shaft
134: direction switch
135: seat holding surface
141: retaining roll
142: seat holding surface
151: bonding device

Claims (7)

A method of manufacturing a mask comprising a mask body portion and an earring portion connected to the mask body portion,
A first conveyance step of preparing a mask main body portion that is easily extended in a high elongation direction crossing the low elongation direction, and conveying the mask main body portion along the low elongation direction of the mask main body portion;
A second conveyance step of preparing an earring portion which is easy to extend in a high elongation direction intersecting with the low elongation direction, and conveying the earring portion along the low elongation direction of the earring portion;
A bonding step of joining the mask body portion conveyed in the first conveyance step and the earring part conveyed in the second conveyance step;
Before the joining step, a relative position changing step of changing the relative positions of the mask body portion and the earring portion so that the low elongation direction of the mask body portion coincides with the high extension direction of the earring portion.
Characterized in that it comprises a, mask manufacturing method. 2. The mask body according to claim 1, wherein the relative position changing step includes changing the conveyance direction of either the mask body portion or the earring portion from a direction along the low extension direction to a direction along the high extension direction. 3. And a step of changing the relative position of the portion and the earring portion. The method of claim 2, wherein the mask body portion is configured in a sheet form,
The said relative position change step rotates the said mask main body part conveyed by the said 1st conveyance step by 90 degrees on the sheet extension surface, and makes the conveyance direction of the said mask main body part the direction of a high extension from the direction along the low extension direction. It becomes a step which switches to the direction which followed, The manufacturing method of the mask characterized by the above-mentioned. As a mask manufactured by the manufacturing method of any one of Claims 1-3,
The mask body portion and the earring portion are all composed of a sheet-shaped nonwoven fabric,
The mask body portion is configured such that the earring portion is joined to an end region on the mask body portion in the low extension direction by fusion welding, so that the low extension direction of the mask body portion coincides with the high extension direction of the earring portion. . 5. The mask body of claim 4, wherein the mask body portion has an intermediate region between both end regions of the mask body portion in a low extension direction, and a wrinkle formed in the intermediate region extending in the low extension direction of the mask body portion. The unfolding operation | movement along the high elongation direction of the said mask main body part of a wrinkle is attained, and the mask main body part is comprised in the structure which is easy to be extended in the high elongation direction by this. A mask comprising a mask body portion and an earring portion connected to the mask body portion,
The mask body portion is formed of a sheet-shaped nonwoven fabric, and has a planar portion extending in a first direction and a second direction crossing the first direction, and an end region on the first direction,
The earring portion is formed of a sheet-shaped nonwoven fabric and is joined to the end region by fusion welding.
And the mask body portion is easier to extend in the second direction than the first direction, and the earring portion is configured to be easily extended in the first direction than the second direction. The mask body of claim 6, wherein the mask body portion has an intermediate region between both end regions in the first direction, and a wrinkle formed in the intermediate region extending in the first direction. The expansion | movement operation | movement along two directions is attained, and, as a result, the mask is easy to be extended to the said 2nd direction rather than the said 1st direction, The mask characterized by the above-mentioned.

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