JP2020023757A - Face mask and face mask for health exercise - Google Patents

Abstract

To provide a face mask having excellent close contactness with a face.SOLUTION: A mask 1 has: a second sheet member 200 which is line-jointed to a first sheet member 100 along one side 120 of the first sheet member 100; a third sheet member 300 which is line-jointed to the first sheet member 100 along the other side 121 of the first sheet member 100; and mounting parts 400 which are attached to marginal areas 130 located at both ends of the first sheet member 100 and can be attached to a portion of a wearer' head. The second sheet member 200 and the third sheet member 300 overlap with the marginal area 130 at side edges 240 and 340, respectively, in a developed state of being folded back. The mounting portions 400 apply urging forces to the second sheet member 200 and the third sheet member 300 via the marginal areas 130.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a mask and a diet mask.

  A general mask is used to prevent viruses, pollen, fine particles, and the like from entering the body, and to prevent scattering of droplets due to coughing, sneezing, and the like (see Patent Documents 1 and 2). Further, there has been proposed a mask that restricts the passage of expiration to some extent by using a material having a low air permeability and obtains an exercise effect such as diet by applying a load to a respiratory organ (see Patent Document 3). In a mask used for the above-mentioned applications, it is important to enhance the adhesion between the mask and the face of the wearer in order to enhance the use effect.

JP 2015-29568 A JP-A-2011-20761 JP 2006-110273 A

  However, for example, in the mask described in Patent Literature 1, it is difficult to three-dimensionally deform the mask because the portion covering the face is formed of a sheet on one plane. Therefore, there is a problem that it cannot be deformed according to the three-dimensional shape of the face, and sufficient adhesion cannot be secured.

  Further, the mask described in Patent Literature 2 is composed of three parts, a nose, a mouth, and a chin, and a three-dimensional change is possible to some extent. However, there is a problem that a gap is likely to be formed at an end of each part or at a seam between the parts, and the adhesiveness is reduced at the chin, the side of the nose, and the cheek corresponding to the part. .

  The mask described in Patent Literature 3 restricts breathing from the mouth, but has a low load on the respiratory organ because it can breathe freely from the nose. In addition, no specific configuration for ensuring the adhesion at the mouth is considered at all, and there is a problem that sufficient adhesion cannot be ensured.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a mask having high adhesion to a face.

  The mask has a first sheet member, a second sheet member, a third sheet member, and a mounting portion. The first sheet member has two sides extending in opposition. The second sheet member is linearly joined to the first sheet member along the one side so as to overlap the first sheet member from one side of the first sheet member toward the center. The third sheet member extends along the other side of the first sheet member along the other side so as to overlap the first sheet member from the other side to the center of the first sheet member facing the side to which the second sheet member is joined. Wire-joined with the member. The mounting portion is attached to the first sheet member in a surplus region of the first sheet member located at both ends in the extending direction of the two sides, and can be mounted on a part of the wearer's head. Here, the second sheet member and the third sheet member each have free ends that are not line-joined to the first sheet member. In the overlapping state where the second sheet member and the third sheet member overlap with the first sheet member, the free ends are formed to have a size that at least partially overlap with each other by the free ends intersecting inside the surplus area. ing. In the unfolded state where the second sheet member and the third sheet member are folded back at the line-joined portion and unfolded, the second sheet member and the third sheet member overlap with the surplus area of the first sheet member at the side end. Meanwhile, it protrudes from the surplus area to the outside in the folding direction. In the unfolded state, when the mounting portion is mounted on the wearer, the mounting portion is moved through the surplus area of the first sheet member so that the surface of the first sheet member exposed by the development is in close contact with the face of the wearer. Thus, an urging force is generated on the second sheet member and the third sheet member.

  The mask has a first sheet member, a second sheet member, a third sheet member, and a mounting portion. The first sheet member has two sides extending in opposition. The second sheet member is linearly joined to the first sheet member along the one side so as to overlap the first sheet member from one side of the first sheet member toward the center. The third sheet member extends along the other side of the first sheet member along the other side so as to overlap the first sheet member from the other side to the center of the first sheet member facing the side to which the second sheet member is joined. Wire-joined with the member. The mounting portion is attached to the first sheet member in a surplus region of the first sheet member located at both ends in the extending direction of the two sides, and can be mounted on a part of the wearer's head. The second sheet member and the third sheet member each have a free end that is not line-joined to the first sheet member. In the overlapping state where the second sheet member and the third sheet member overlap with the first sheet member, the free ends are formed to have a size that at least partially overlap with each other by the free ends intersecting inside the surplus area. ing. The mask is configured such that the first sheet member, the second sheet member, and the third sheet member are attached to the mouth portion of the wearer in a deployed state where the mask is folded back and deployed at a portion where the second sheet member and the third sheet member are line-joined. The wearer can be used as a respiratory mask by contacting an area including the nose, and in a superimposed state, in a deployed state of at least one of the second sheet member and the third sheet member superimposed on the first sheet member. By contacting the surface opposite to the region including the mouth and nose with the region including the eyelid of the wearer, the surface can be used as an eye mask.

  The diet mask has a first sheet member, a second sheet member, a third sheet member, and a mounting portion. The first sheet member has two sides extending in opposition. The second sheet member is linearly joined to the first sheet member along the one side so as to overlap the first sheet member from one side of the first sheet member toward the center. The third sheet member extends along the other side of the first sheet member along the other side so as to overlap the first sheet member from the other side to the center of the first sheet member facing the side to which the second sheet member is joined. Wire-joined with the member. The mounting portion is attached to the first sheet member in a surplus region of the first sheet member located at both ends in the extending direction of the two sides, and can be mounted on a part of the wearer's head. The first sheet member, the second sheet member, and the third sheet member are formed in a plurality of layers including a filter capable of collecting 0.1 μm particles. The diet mask is mounted at a position where the second sheet member and the third sheet member are line-joined and folded and deployed, so that the first sheet member, the second sheet member, and the third sheet member are attached. It is possible to improve the exercise efficiency of the wearer by covering the mouth and the nose of the wearer, suppressing the passage of air due to the breathing of the wearer, and increasing the respiratory load of the wearer.

  In the unfolded state, the second sheet member and the third sheet member protrude outward from the surplus area 130 in the folding direction while overlapping the surplus area of the first sheet member at the side ends. That is, the side end portions of the second sheet member and the third sheet member overlap not only in the middle of the surplus area but in the ends in the folding direction, and extend to the outside of the surplus area. Therefore, the mounting portion can apply a biasing force to the side end portions of the second sheet member and the third sheet member via the surplus area in the folding direction in a maximum range (overall surplus area length). When the mask is worn, the second sheet member and the third sheet member are sandwiched between the surplus region of the first sheet member and both cheeks of the wearer, so that the adhesion at the surplus region, that is, at the end of the mask 1 is dramatically increased. To increase. In addition, the second sheet member and the third sheet member protrude from the surplus area of the first sheet member in the folding direction. Since the urging force from the surplus area acts on the protruding second sheet member and third sheet member, the second sheet member and the third sheet member also adhere to both cheeks of the wearer. As a result, the mask has high adhesion over the entire surface from the end to the center, and the end of the mask does not float from the face of the wearer. Further, since the second sheet member and the third sheet member are present, the mask 1 is brought into close contact with the face in a wider area of the wearer's face than in the case of only the first sheet member 100 and in a three-dimensional shape according to the shape of the face. Can be

It is a front view of the mask of an overlapping state. It is a rear view of the mask of an overlapping state. FIG. 3 is a schematic cross-sectional view of the superimposed mask taken along the line III-III in FIG. 2. It is a rear view of the mask of an unfolded state. It is the perspective view which looked at the mask of the deployment state from one direction. It is the perspective view which looked at the mask of the deployment state from another direction. FIG. 3 is a schematic sectional view of the mask in an unfolded state.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the description of the drawings, the same elements will be denoted by the same reference symbols, without redundant description. In addition, the dimensional ratios in the drawings are exaggerated for convenience of description, and may be different from the actual ratios.

  1 is a front view of the mask in the superimposed state, FIG. 2 is a rear view of the mask in the superimposed state, and FIG. 3 is a schematic cross-sectional view of the mask in the superimposed state along line III-III in FIG.

  The mask 1 according to the present embodiment has a first sheet member 100, a second sheet member 200, a third sheet member 300, and a mounting section 400, as shown in FIGS.

  First, the materials and structures of the first to third sheet members 100 to 300 will be described. The first sheet member 100, the second sheet member 200, and the third sheet member 300 are each formed by stacking a plurality of materials in a layered structure. Since the layer structure is common to the sheet members 100 to 300, the first sheet member 100 will be described below as a representative.

  The layer structure includes, for example, a surface material layer 111, a mesh material layer 112, a filter layer 113, a water absorbing material layer 114, and an elastic material layer 115, as shown in FIG. Each of the layers 111 to 115 is preferably subjected to an antibacterial treatment.

  The surface material layer 111 is made of a mesh material having less unevenness and a smoother surface than other layers. The surface material layer 111 is formed of, for example, nylon (registered trademark) fiber or polyester fiber to which dust and dirt do not easily adhere.

  The mesh material layer 112 is made of a mesh material that is less expensive than the filter layer 113 and has rough joints. The mesh material layer 112 is formed of, for example, a nonwoven fabric.

  The material of the filter layer 113 is appropriately selected according to the use of the mask 1 in order to secure the filter function of the mask 1. For example, the filter layer 113 is made of a filter material conforming to the N99 standard. Specifically, the filter material conforming to the N99 standard is a porous material capable of collecting 99.9% of PM2.5, 0.1 μm fine particles, viruses and droplets.

  The water-absorbing material layer 114 is made of a material that adsorbs moisture contained in the breath of the wearer and is excellent in quick drying. The water absorbing material layer 114 is formed of, for example, nylon (registered trademark).

  The elastic material layer 115 is made of a material that has a good fit and good adhesion to the skin such as the face of the wearer. The elastic material layer 115 is formed of, for example, a soft material such as a nonwoven fabric.

  Although the layer structure of the first sheet member 100 to the third sheet member 300 is shown, it is merely an example, and the layer structure of the mask of the present embodiment is not limited to the above. It suffices if at least the purpose of the mask 1 can be achieved, and for that purpose, at least the filter layer 113 or a layer corresponding thereto is sufficient. Further, the above five layers are not limited to one layer each, and a plurality of layers may be provided. For example, if the number of layers of the mesh material layer 112 and the filter layer 113 is increased, the respiratory load for training can be improved, and the dustproof ability can be improved. Conversely, if the number is reduced, the mask unit price can be reduced. Depending on the application of the mask 1, the combination of the layer structures can be freely changed.

  Next, a correlated structure of the first to third sheet members 100 to 300 and the mounting portion 400 will be described.

  The first sheet member 100 is a sheet-shaped member having two opposite sides 120 and 121, as shown in FIGS. The distance between the two sides 120 and 121 of the first sheet member 100 is defined so that the first sheet member 100 can cover from the nose to the mouth when the mask 1 is worn. The periphery of the first sheet member 100 is intermittently or continuously joined and fastened. Joining may be achieved by any method such as, for example, heat fusion, pressure bonding, adhesion, sewing, and the like. Hereinafter, a description will be given assuming that the periphery of the first sheet member 100 is heat-sealed to form the heat-sealed portion 122. The layer structure of the first sheet member 100 is stably fixed by the heat fusion portion 122.

  The second sheet member 200 is attached so as to overlap the first sheet member 100 from the side 120 toward the center of the two opposing sides of the first sheet member 100. The second sheet member 200 is linearly joined to the first sheet member 100 along the side 120 of the first sheet member 100. Wire bonding may be achieved by any method such as heat fusion, pressure bonding, adhesion, sewing, and the like. The line joining forms a line joining portion 210 along the side 120. The wire bonding part 210 is provided on the center side of the heat fusion part 122 of the first sheet member. In particular, the wire joint 210 is formed so as to approach the center of the first sheet member 100 toward the end.

  The second sheet member 200 has a free end 220 that is not fixed to the first sheet member 100 by the wire joint 210. The joint 221 is formed at the free end 220 along the free end 220. The joining part 221 stably fixes the layer structure forming the second sheet member 200, similarly to the heat fusion part 122 of the first sheet member 100. A nose wire 230 that is deformable according to the shape of the nose of the wearer is provided inside the layer structure of the second sheet member 200. The second sheet member 200 has two corners 222. The two corners 222 constitute two of the four corners when the mask 1 is used (in an unfolded state described later). Since the corner 222 is located at the corner of the mask 1, it corresponds to a position where the curvature of the free end 220 changes. Therefore, specifically, the following relationship is established. That is, the inclination angle θ1 between the outer shape of the free end 220 and the folding direction A outside the corner 222 (on the side closer to the mounting portion 400) is inside the corner 222 (the center side of the first sheet member 100). Is smaller than the inclination angle θ2 formed between the outer shape of the free end 220 and the folding direction A. Note that the folding direction A is a direction in which the second sheet member 200 is folded to open with respect to the first sheet member 100. The configuration for opening the second sheet member 200 will be described later in detail with reference to FIG.

  The third sheet member 300 is attached so as to overlap the first sheet member 100 from the side 121 toward the center of the two opposing sides of the first sheet member 100. The third sheet member 300 is line-joined to the first sheet member 100 along the side 121 of the first sheet member 100. Wire bonding may be achieved by any method such as heat fusion, pressure bonding, adhesion, sewing, and the like. The line joining forms a line joining portion 310 along the side 121. The wire joint 310 is provided on the center side of the heat-sealed portion 122 of the first sheet member 100. In particular, the wire joint 310 is formed so as to approach the center of the first sheet member 100 toward the end. That is, the line joint 310 is formed so as to approach the line joint 210 as it approaches the end.

  The third sheet member 300 has a free end 320 that is not fixed to the first sheet member 100 by the wire joint 310. A joint (not shown) is formed on the free end 320 along the free end 320. The bonding portion stably fixes the layer structure forming the third sheet member 300, similarly to the heat fusion portion 122 of the sheet member 100. The third sheet member 300 has two corners 322. The two corners 322 constitute two of the four corners when the mask 1 is used (in a developed state described later). Since the corner 322 is located at the corner of the mask 1, it corresponds to the position where the tendency of the curvature of the free end 320 changes. Therefore, like the free end 220 of the second sheet member 200, the free end 320 of the third sheet member 300 has a smaller inclination with respect to the folding direction outside the two corners 322 than inside the two corners 322.

  Both the second sheet member 200 and the third sheet member 300 are attached to a predetermined surface (the surface on which the elastic material layer 115 is formed) of the first sheet member 100. The second sheet member 200 and the third sheet member 300 partially overlap on the first sheet member 100 as shown in FIG. 2 in a state where no external force is applied. This state is hereinafter referred to as a superimposed state of the mask 1. In the superimposed state, the second sheet member 200 and the third sheet member 300 are formed to have a size covering 90% or more, preferably 95% or more of the first sheet member 100 in total. Thereby, the elastic material layer 115 of the first sheet member 100 that touches the wearer when the mask 1 is worn is protected in the superimposed state when the mask is not used. In the superimposed state, the free end 220 of the second sheet member 200 and the free end 320 of the third sheet member 300 intersect with each other from a part outside the corner 222 and a part outside the corner 322 to the entire width inside. I do.

  The mounting section 400 is a member that can be mounted on a part of the wearer's head. The mounting portion 400 may have any form, and can be mounted on the wearer by being attached to the outer periphery of the wearer's head by elastic force or being hooked by the wearer's ear. In the present embodiment, the mounting portion 400 is a pair of ring-shaped members provided at both ends of the first sheet member 100, and the mask 1 is mounted on the wearer by passing the wearer's ear through the ring. You. The mounting section 400 is attached to the first sheet member 100, and particularly attached to both ends of the sides 120 and 121 of the first sheet member 100. The attachment position 410 of the attachment portion 400 is formed outside the ends of the line joints 210 and 310 when viewed in the width direction of the first sheet member 100 (the left-right direction in FIG. 2). Further, the attachment position 410 is formed outside the ends of the wire joint 210 and the wire joint 310 when viewed in the height direction (the vertical direction in FIG. 2) of the first sheet member 100. That is, the first sheet member 100 has a surplus area 130 sufficient for the mounting position 410 of the mounting section 400 outside the ends of the wire joint 210 and the wire joint 310. Since the surplus region 130 is outside the line joining portion 210 and the line joining portion 310, the free end 220 of the second sheet member 200 and the free end 320 of the third sheet member 300 are in the superposed state inside the surplus region. Cross at

  The mounting section 400 is provided with an adjusting section 420 for adjusting the size of the ring. The adjustment unit 420 can change the range in which the string members are bound at the ends by sliding along the string members constituting the ring. The larger the range in which the string members are bundled, the smaller the ring.

  Next, the configuration when the mask 1 is mounted will be described.

  4 is a rear view of the unfolded mask, FIG. 5 is a perspective view of the unfolded mask seen from one direction, FIG. 6 is a perspective view of the unfolded mask seen from another direction, and FIG. It is an outline sectional view. Note that the cross-sectional view of FIG. 7 is a cross-sectional view taken along the line III-III when the mask 1 of FIG. 2 is in a developed state.

  By unfolding the second sheet member 200 and the third sheet member 300 in the superimposed state with respect to the first sheet member 100, the mask 1 can move around the nose and mouth of the wearer as shown in FIGS. It becomes the shape which covers. This state is hereinafter referred to as a developed state of the mask 1. In the unfolded state, the free end 220 of the second sheet member 200 is folded back in the folding direction A indicated by an arrow in FIG. The second sheet member 200 with the free end 220 folded back overlaps the surplus area 130 of the first sheet member 100 at the side end 240 defined outside the corner 222 (on the side of the mounting portion 400). In the unfolded state, the side end 240 protrudes outside the surplus area 130 in the folding direction A. In the unfolded state, when viewed in the folding direction A, the corners 222 are provided at positions overlapping the surplus area 130, respectively.

  In the unfolded state, the free end 320 of the third sheet member 300 is folded back in the folding direction indicated by the arrow in FIG. The third sheet member 300 with the free end 320 folded back overlaps the surplus area 130 of the first sheet member 100 at a side end 340 defined outside the corner (on the mounting portion 400 side). In the unfolded state, the side end 340 protrudes from the surplus area 130 to the outside in the folding direction A. In the unfolded state, when viewed in the folding direction A, the corners 322 are provided at positions overlapping the surplus area 130, respectively.

  When the second sheet member 200 and the third sheet member 300 are folded, the protected surface of the first sheet member 100 is exposed. At the same time, the surfaces of the second sheet member 200 and the third sheet member 300 facing the first sheet member 100 in the superimposed state are also exposed. When the wearing part 400 is hung on the wearer's ear, the exposed surfaces of the first sheet member 100, the second sheet member 200, and the third sheet member 300 make contact with the face so as to cover the nose and mouth of the wearer. . The side ends 240 and 340 of the second sheet member 200 and the third sheet member 300 overlap with the surplus area 130 of the first sheet member 100 and are sandwiched between the wearer's face and the surplus area 130. Further, the second sheet member 200 and the third sheet member 300 protrude beyond the surplus areas 130 at both ends of the mask 1 and outside the first sheet member 100 in the folding direction. In other words, the free ends 220 and 320 have the entire width inside the two corners 222 and 322, respectively, outside the first sheet member 100.

  Here, as shown in FIG. 7, the first sheet member 100 is drawn to the face by the tension of the mounting section 400. The second sheet member 200 and the third sheet member 300 are brought close to the face by the first sheet member 100 while the drag for returning to the superimposed state acts, so that the drag acts on the face of the wearer. Higher adhesion is obtained. In particular, since the free end 220 of the second sheet member 200 and the free end 320 of the third sheet member 300 are located outside the first sheet member 100 with almost the entire width (inside the corners 222 and 322), the drag is reduced. It works almost all around 1.

  According to the mask 1 configured as described above, the following effects can be obtained.

  In the unfolded state, the second sheet member 200 and the third sheet member 300 overlap the surplus area 130 of the first sheet member 100 at the side ends 240 and 340, and protrude outward from the surplus area 130 in the folding direction. That is, the side end portions 240 and 340 of the second sheet member 200 and the third sheet member 300 overlap not only in the middle of the surplus area 130 but in the end in the folding direction A, and further extend to the outside of the surplus area 130. . Therefore, the mounting portion 400 extends over the surplus area 130 with respect to the side ends 240 and 340 of the second sheet member 200 and the third sheet member 300 in a maximum range in the folding direction A (overall length of the surplus area). Energize. When the mask is worn, the second sheet member 200 and the third sheet member 300 are sandwiched between the surplus area 130 of the first sheet member 100 and both cheeks of the wearer. Dramatic improvement in adhesion. In addition, the second sheet member 200 and the third sheet member 300 protrude from the surplus area 130 of the first sheet member 100 in the folding direction. Since the urging force from the surplus area 130 acts on the protruding second sheet member 200 and the third sheet member 300, the second sheet member 200 and the third sheet member 300 also adhere to both cheeks of the wearer. I do. As a result, the mask 1 has high adhesion over the entire surface from the end to the center, and the end of the mask 1 does not float from the face of the wearer. Furthermore, since the second sheet member 200 and the third sheet member 300 are present, the mask 1 is applied to the face in a wider area of the wearer's face than in the case of using only the first sheet member 100 and in a three-dimensional shape according to the shape of the face. It is made to adhere.

  Furthermore, when the mask is worn, the elastic force of the second sheet member 200 and the third sheet member 300 that is about to return from the folded state acts on the face of the wearer. Therefore, the second sheet member 200 and the third sheet member 300 are appropriately urged against the wearer's face, and the adhesion of the mask to the face can be improved.

  The free ends 220 and 320 of the second sheet member 200 and the third sheet member 300 have corners 222 and 322, and the inclination angle with respect to the folding direction A is smaller outside the corners 222 and 322 than inside. If the angle of inclination outside the corners 222 and 322 is small, the free ends 220 and 320 of the first sheet member at any point outside the corners 222 and 322 (side ends 240 and 340) when folded back. Start to run out of 100. That is, the range inside the portion includes the entire width inside the corners 222 and 322 and protrudes outside the first sheet member 100 in the folding direction. The free ends 220 and 320 of the second sheet member 200 and the third sheet member 300 protrude outside the first sheet member 100 at least within the entire width inside the corners 222 and 322. Energized.

  In the superimposed state, the second sheet member 200 and the third sheet member 300 are formed to have a size that covers 90% or more, preferably 95% or more of the first sheet member 100 in total. Thus, the elastic material layers 115 of the first sheet member 100, the second sheet member 200, and the third sheet member 300, which touch the wearer when worn, are protected in a superimposed state when the mask is not used. The mask 1 can be kept clean.

  In addition, the first sheet member 100, the second sheet member 200, and the third sheet member 300 include a filter capable of collecting 0.1 μm particles. Therefore, it can be used as a training mask for applying a load to the respiratory organs. It can also function as a high-performance mask for removing small particles such as PM2.5.

  In the superimposed state, substantially the entire first sheet member 100 is covered by the second sheet member 200 and the third sheet member 300. Therefore, the inside of the first sheet member 100, the second sheet member 200, and the third sheet member 300 that touch the face in the unfolded state can be kept clean.

  In the superimposed state, the width of the mask 1 in the vertical direction can be reduced to about one third of the developed state. Therefore, if the mounting portion 400 is mounted on the wearer and the first sheet member 100, the second sheet member 200, and the third sheet member 300 are arranged on the eyelids of the wearer, it can be used as an eye mask. When used as an eye mask, the portion that touches the inside of the first sheet member 100 is covered by the second sheet member 200 and the third sheet member 300 that are folded and superimposed, and the second sheet member 200 and the third sheet member The outside of the sheet member 300 can be brought into contact with the eyes. This makes it possible to separate the portion of the mask that contacts the face between the case where the mask is used as a mask that places a load on the respiratory organ and the case where the mask is used as an eye mask, thereby providing a comfortable and clean feeling of use.

  In addition, by adjusting the length of the string member 400 by the adjusting unit 420, the fit of the mask 1 to the wearer can be adjusted. As a result, the degree of close contact of the mask 1 with the face can be further improved, and a load can be more effectively applied to the respiratory organs to improve training efficiency. In addition, since the string member can be adjusted to an appropriate length when used as an eye mask and when used as a mask, a comfortable feeling in use can be obtained in any of the aspects.

[Example]
Next, examples of the present invention will be described.

(Example 1)
Particle collection efficiency test (PFE test)
A fine particle passing test of fine particles was performed using a sheet member having the same configuration as the sheet member described in the above embodiment. Specifically, the sheet member has a structure including five layers of a surface material layer, a mesh material layer, a filter layer, a water-absorbing material layer, and an elastic material layer.

The test method was based on the ASTM standard, and spherical polystyrene standard particles having a segregation of 49 cm ² and a particle size of 0.1 μm (0.1000 ± 0.003 μm) were passed at a flow rate of 28.3 L / min. . Table 1 shows the results.

  As described above, a high removal rate of 99.9% or more was confirmed in each measurement.

  That is, it was confirmed that the fine particles can be collected with high accuracy by the sheet member used for the mask of the above embodiment.

(Example 2)
Further, the effect when the mask of the above embodiment was used as a load mask for improving exercise efficiency was confirmed.

  As an implementation method, the heart rate and the metabolic rate were monitored at rest and exercise when the mask was not worn, and at rest and exercise when the mask was worn. At the time of exercise, the measurement was performed using an ergometer with the load of the ergometer set to 30 W and 60 W, respectively, and exercised for 3 minutes.

  The measurement results are as shown in the table below.

  As described above, it was confirmed that the load was greater when the mask was worn than when the mask was not worn, both at rest and during exercise. It was confirmed that the effect of exercise was enhanced by the large load.

1 mask,
100 first sheet member,
111 surface material layer,
112 mesh material layer,
113 filter layer,
114 water-absorbing material layer,
115 elastic material layer,
120, 121 sides,
122 heat fusion part,
130 surplus area,
200 second sheet member,
210 wire joint,
220 free end,
221 joint,
222 corner,
230 nose wire,
240 side end,
300 third sheet member,
310 wire joint,
320 free end,
322 corner,
340 side end,
400 mounting part,
410 mounting position,
420 adjustment unit.

Claims (7)

A first sheet member having two sides extending opposite to each other;
A second sheet member line-joined to the first sheet member along the one side so as to overlap the first sheet member from one side toward the center of the first sheet member;
Line joining the first sheet member along the other side so as to overlap the first sheet member from the other side of the first sheet member facing the side to which the second sheet member is joined toward the center. A third sheet member to be
In a surplus region of the first sheet member located at both ends in the extending direction of the two sides, a mounting portion attached to the first sheet member and can be mounted on a part of a wearer's head,
Has,
The second sheet member and the third sheet member each have a free end that is not line-joined to the first sheet member, and in a superimposed state overlapping with the first sheet member, the free ends are the same. By intersecting inside the surplus area, it is formed in a size at least partially overlap each other,
In a deployed state in which the second sheet member and the third sheet member are folded back at a portion where the second sheet member and the third sheet member are line-joined, the second sheet member and the third sheet member are in the surplus area of the first sheet member. While overlapping at the side end, protruding from the surplus area to the outside in the folding direction,
In the unfolded state, when the mounting portion is mounted on a wearer, the mounting portion is configured to remove the first sheet member so that a surface of the first sheet member exposed by the development is in close contact with a wearer's face. A mask for generating an urging force on the second sheet member and the third sheet member via a surplus area. The second sheet member and the third sheet member have corners located at four corners covering the face of the wearer in the unfolded state,
The corner is provided at a position overlapping the surplus area of the first sheet member when viewed in the folding direction in the unfolded state,
The mask according to claim 1, wherein the free ends of the second sheet member and the third sheet member have a smaller inclination angle with respect to the folding direction outside the corner than inside the corner.   The mask according to claim 1, wherein the second sheet member and the third sheet member cover 90% or more of the first sheet member.   The first sheet member, the second sheet member, and the third sheet member are formed in a plurality of layers including a filter, and at least one of the first sheet member, the second sheet member, and the third sheet member is provided. The mask according to any one of claims 1 to 3, further comprising a filter capable of collecting 0.1 µm particles.   The mask according to any one of claims 1 to 4, wherein the mounting portion is a string member that locks to a wearer's ear, and the length of the string member is adjustable. A first sheet member having two sides extending in opposition,
A second sheet member line-joined to the first sheet member along the one side so as to overlap the first sheet member from one side toward the center of the first sheet member;
Line joining the first sheet member along the other side so as to overlap the first sheet member from the other side of the first sheet member facing the side to which the second sheet member is joined toward the center. A third sheet member to be
In a surplus region of the first sheet member located at both ends in the extending direction of the two sides, a mounting portion attached to the first sheet member and can be mounted on a part of a wearer's head,
Has,
The second sheet member and the third sheet member each have a free end that is not line-joined to the first sheet member, and in a superimposed state overlapping with the first sheet member, the free ends are the same. By intersecting inside the surplus area, it is formed in a size at least partially overlap each other,
In a deployed state in which the second sheet member and the third sheet member are folded back and deployed at a position where the line members are joined, the first sheet member, the second sheet member, and the third sheet member are put on a mouth of a wearer. It can be used as a respiratory mask by contacting the area including the part and the nose,
In the overlapping state, at least one of the second sheet member and the third sheet member superimposed on the first sheet member is in contact with an area including a mouth and a nose of a wearer in the deployed state. A mask that can be used as an eye mask by bringing the opposite surface into contact with a region including the eyelids of the wearer. A first sheet member having two sides extending in opposition,
A second sheet member line-joined to the first sheet member along the one side so as to overlap the first sheet member from one side toward the center of the first sheet member;
Line joining the first sheet member along the other side so as to overlap the first sheet member from the other side of the first sheet member facing the side to which the second sheet member is joined toward the center. A third sheet member to be
In a surplus region of the first sheet member located at both ends in the extending direction of the two sides, a mounting portion attached to the first sheet member and can be mounted on a part of a wearer's head,
Has,
The first sheet member, the second sheet member, and the third sheet member are formed in a plurality of layers including a filter capable of collecting 0.1 μm particles,
The first sheet member, the second sheet member, and the third sheet member are mounted by being folded at a portion where the second sheet member and the third sheet member are line-joined and deployed. A diet mask that covers the mouth and nose of a wearer, suppresses the passage of air due to the wearer's breathing, and increases the exercise efficiency of the wearer by increasing the respiratory load of the wearer.