Mask

Abstract

To provide a technique capable of suppressing degradation of wearing feeling of a mask.SOLUTION: A mask comprises a mask body formed of a nonwoven fabric, and a pair of ear hook parts fixed to both ends in the width direction of the mask body. A deposition part for depositing the mask body with the ear hook parts is formed in a fixing region in which the ear hook parts are fixed to the mask body. The deposition part includes a first deposition part, and a second deposition part arranged at a central side of the mask body at an interval between the first deposition part in an extension part of the ear hook parts in the fixing region.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a mask.

Background Art

[0002] In recent years, disposable masks in which ear loops or the like are attached to a mask body formed by laminating non-woven fabric or the like have been known (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Generally, an ear-hanging part for hanging on the wearer's ear, such as an ear loop, to fix the mask to the wearer is joined to a mask body formed of non-woven fabric by ultrasonic welding. However, the portion where the non-woven fabric and the ear-hanging part are joined by ultrasonic welding becomes harder than other portions. When the portion hardened by ultrasonic welding comes into direct or indirect contact with the wearer's skin, there is a problem that the wearing feeling of the mask deteriorates.

[0005] Therefore, an object of the present invention is to provide a technique capable of suppressing a decrease in the wearing feeling of a mask.

Means for Solving the Problems

[0006] In order to solve the above problems, in the present invention, two welding portions are formed with a space provided in the width direction.

[0007] Specifically, the present invention relates to a mask comprising a mask body formed of a non-woven fabric and a pair of ear loops fixed to both end portions in the width direction of the mask body, wherein in a fixing region for fixing the ear loops to the mask body, a welding portion for welding the mask body and the ear loops is formed, and the welding portion includes a first welding portion and a second welding portion disposed on the central side of the mask body with a space provided from the first welding portion in the extending direction of the ear loops in the fixing region.

[0008] In the above mask, the ear loops are string-shaped and have a thickness length of 1.0 mm or more, and the space may be equal to or greater than the thickness length of the ear loops.

[0009] In the above mask, the space may be twice or more the thickness length of the ear loops.

[0010] In the above mask, the ear loops may extend to the width direction end portions of the mask body rather than the first welding portion.

[0011] In the above mask, the fixing region is formed at both end portions in the longitudinal direction of the mask body, and the ear loops may be joined to the mask body so as to form a curve convex toward the central side of the mask body.

[0012] The above mask further includes side sheets disposed on both end portions in the width direction of the mask body to cover the skin surface side of the ear loops in the fixing region and joined to the mask body. The ear loops are joined to the skin surface side of the mask body, and the side sheets may extend to the central side of the mask body rather than the second welding portion.

[0013] In the above mask, the ear loops are joined to the skin side of the mask body, cover the skin side of the ear loops in the fixing region, and the non-woven fabric is folded back toward the center side of the mask body at both ends in the width direction of the mask body, and the folded non-woven fabric may extend to the center side of the mask body beyond the second welding portion.

Advantages of the Invention

[0014] According to the present invention, it is possible to suppress a decrease in the wearing feeling of the mask.

Brief Description of the Drawings

[0015]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying Out the Invention

[0016] Hereinafter, a mask according to an embodiment of the present invention will be described with reference to the drawings. Note that the configurations of the following embodiments are examples, and the present invention is not limited to the configurations of these embodiments.

[0017] FIG. 1 is an external perspective view of a mask according to an embodiment. As shown in FIG. 1, the mask 1 has a mask body 2, ear straps 3, 4 (an example of "a pair of ear-hanging portions" in the present application), side portions 5, 6 (an example of "both end portions in the width direction" in the present application), and a nose fitter 7. The mask body 2 is formed of a sheet-like breathable material and has a size capable of covering the mouth and nose of the wearer. The ear straps 3, 4 are formed of a string-like elastic material, and by joining the ends at the side portions 5, 6 located on both sides of the mask body 2, annular rings are respectively formed on the left and right sides of the mask body 2.

[0018] The mask body 2 is composed of various sheets such as a breathable non-woven fabric and is a laminate of a plurality of sheets. The plurality of sheets are appropriately joined to each other at the upper, lower, left, and right edges and the like. The mask body 2 has folds that can form a pleated three-dimensional shape. Such folds are such that when the mask body 2 is folded in a pleated state, the side portions 5, 6 are joined to the ends on both the left and right sides, and their shape is held by the side portions 5, 6. That is, the unfolding of the folds is blocked by the side portions 5, 6 at the ends on both the left and right sides, and in the region near the center of the mask body 2, when the mask 1 is worn, the folds are unfolded, and the pleats of the mask body 2 are expanded to form a three-dimensional shape. Note that when not worn, the pleats can be closed to make the mask body 2 flat without being bulky.

[0019] The string-like elastic material constituting the ear straps 3, 4 is formed of, for example, an interwoven belt of rubber thread and cotton, an interlaced net of resin filaments, a stretchable non-woven fabric, or the like. By joining both ends of such a string-like material to the side portions 5, 6 on the left and right sides of the mask body 2 respectively, loop-shaped ear straps 3, 4 are formed on the left and right sides of the mask body 2, with one end of the material as the starting point and the other end of the material as the ending point.

[0020] The nose fitter 7 is a member fixed to the mask body 2 in a state where its longitudinal direction extends in the left-right direction of the mask body 2 at the upper part of the mask body 2. The nose fitter 7 is a It may be fixed inside the laminate in a state of being sandwiched between sheet-like breathable materials that make up the mask body 2, or may be fixed to the surface of the mask body 2. The nose fitter 7 is made of a plastically deformable material that has a strength such that it can be deformed into an appropriate shape by being pressed by the wearer's finger and maintains its shape even after being released from the pressing. By providing such a nose fitter 7 at the upper part of the mask body 2, the wearer can block the gap formed between the nose and the mask body 2.

[0021] For each of the above-described materials constituting the mask 1, joining by ultrasonic welding is preferable. However, for example, sewing with a sewing thread, adhesion with a hot melt adhesive, heat sealing, and other various joining techniques can be applied.

[0022] Hereinafter, the details of the mask 1 will be described in detail. FIG. 2 is a plan view of the mask 1 according to the present embodiment as viewed from the skin side. As shown in FIG. 2, the mask 1 has a rectangular shape in plan view. In a state where the mask 1 is worn by the wearer (hereinafter abbreviated as "worn state"), the longitudinal direction of the mask body 2 becomes the width direction corresponding to the left-right direction of the wearer, and the short-side direction of the mask body 2 becomes the longitudinal direction corresponding to the up-down direction of the wearer. Further, in the worn state of the mask 1, the side facing the wearer's skin (the inner side in the worn state) is defined as the skin side, and the side opposite to the skin side (the outer side in the worn state) is defined as the non-skin side. Furthermore, the direction connecting the skin side and the non-skin side is defined as the thickness direction. In the mask 1, the width direction and the longitudinal direction are orthogonal to each other, and the thickness direction is orthogonal to both the width direction and the longitudinal direction. Note that viewing from the thickness direction is defined as plan view.

[0023] The mask body 2 is formed by laminating a plurality of (for example, three) rectangular non-woven fabrics. A pair of ear loops 3 and 4 are fixed to the side portions 5 and 6 (both ends in the width direction) of the mask body 2. The ear loop 3 is fixed to the mask body 2 by fixing regions 10 formed at both longitudinal ends. Similarly, the ear loop 4 is fixed to the mask body 2 by fixing regions 10 formed at both longitudinal ends. The ear loops 3 and 4 are fixed to the mask body 2 by two fixing regions 10 so as to form a curve that protrudes toward the center side of the mask body 2. In the present embodiment, the ear loops 3 and 4 are joined to the skin side of the mask body 2. Further, the mask 1 includes side sheets 8 and 9 that cover the skin side of the ear loops 3 and 4 in the fixing regions 10 and are disposed at both ends in the width direction of the mask body 2 and joined to the mask body 2. The side portions 5 and 6 of the mask 1 are configured to include the mask body 2 and the side sheets 8 and 9. Note that the ear loops 3 and 4 in the present embodiment are in the form of strings having a substantially circular cross-sectional shape perpendicular to the extending direction thereof.

[0024] FIG. 3 is a diagram showing an enlarged view of the vicinity of the fixing region 10 formed in the upper right in FIG. 2. FIG. 4 is a cross-sectional view of the mask 1 in the width direction when the mask 1 is cut along line AA shown in FIG. 3. In the following, the fixing region 10 on the upper side in the longitudinal direction of the side portion 5, which is the fixing region 10 for fixing the ear loop 3, will be taken as an example for explanation. However, the mask 1 has the same configuration in both the fixing region 10 on the lower side in the longitudinal direction of the ear loop 3 and both fixing regions 10 of the ear loop 4 in the side portion 6.

[0025] In the present embodiment, in the fixing region 10, a welding portion 11 for welding the mask body 2 and the ear loop 3 by ultrasonic welding is formed. The welding portion 11 includes a first welding portion 11A and a second welding portion 11B disposed on the center side of the mask body 2 with a space (hereinafter referred to as "space A") provided in the extending direction of the ear loop 3 in the fixing region 10 with respect to the first welding portion 11A. The first welding portion 11A is disposed closer to the width direction end side of the mask body 2 than the second welding portion 11B. Note that the extending direction of the ear loop 3 in the fixing region 10 coincides with the width direction (longitudinal direction) of the mask body 2. In the welding portion 11, the thickness of the ear loop 3 has almost disappeared, and the ear loop 3 and the mask body 2 are integrated.

[0026] As shown in FIG. 4, the side sheet 8 is bent at the widthwise end of the mask body 2 and is arranged to cover the skin side and the non-skin side of the side portion 5 of the mask body 2. The earloop 3 is sandwiched between the skin side of the mask body 2 and the side sheet 8 and joined to the mask body 2 and the side sheet 8. More specifically, the first welded portion 11A and the second welded portion 11B of the welded portion 11 weld the skin side of the mask body 2, the earloop 3, and the side sheet 8 by ultrasonic welding. In addition, the skin side of the mask body 2 and the side sheet 8 other than the fixed region 10, and the non-skin side of the mask body 2 and the side sheet 8 are welded by ultrasonic welding. The first welded portion 11A and the second welded portion 11B are hardened by ultrasonic welding compared to other parts of the mask 1. However, in the present embodiment, the first welded portion 11A and the second welded portion 11B are formed with an interval A, and the earloop 3 is not ultrasonically welded to the mask body 2 throughout the entire fixed region 10, and the thickness of the earloop 3 can be maintained between the first welded portion 11A and the second welded portion 11B. For this reason, the non-welded portion between the first welded portion 11A and the second welded portion 11B bulges on the skin side, and it is possible to prevent the welded portion 11 from contacting the skin. The mask 1 according to the present embodiment can prevent the hardened welded portion 11 from contacting the skin, so that a decrease in the wearing feeling can be suppressed.

[0027]

[0028] ​Also, as shown in FIG. 4, between the first welding portion 11A and the second welding portion 11B, the ear strap 3 has recovered its thickness. In the cross-section of the mask 1 in the width direction, the cross-sectional shape of the ear strap 3 between the first welding portion 11A and the second welding portion 11B is an arc shape that protrudes toward the skin side. Note that this arc shape can include those that are approximately arcs. Here, the distance A between the first welding portion 11A and the second welding portion 11B is preferably equal to or greater than the thickness length of the ear strap 3 (hereinafter referred to as "thickness length B"). Note that the thickness length B is the thickness of the ear strap 3 outside the fixed region 10. When the distance A and the thickness length B are the same length, if the thickness length of the ear strap 3 is 1.0 mm or more, it is possible to secure a thickness length of the ear strap 3 between the first welding portion 11A and the second welding portion 11B of about 0.5 mm. In this way, if the distance A and the thickness length B are made the same, it is possible to secure a length equal to half of the thickness length B for the thickness length of the ear strap 3 between the first welding portion 11A and the second welding portion 11B. The ear strap 3 between the first welding portion 11A and the second welding portion 11B has a semi-circular shape with a radius equal to half of the thickness length B. Also, since the ear strap 3 is an elastic body, it is softer than the welding portion 11, and the possibility that the welding portion 11 indirectly contacts the skin via the side sheet 8 can be reduced.

[0029] More preferably, the distance A between the first welding portion 11A and the second welding portion 11B is twice or more the thickness B length. Thereby, the thickness length of the ear strap 3 between the first welding portion 11A and the second welding portion 11B can be made equal to or greater than the thickness length B, and the elasticity in the thickness direction of the ear strap 3 between the first welding portion 11A and the second welding portion 11B can be sufficiently exerted. As a result, the mask 1 can sufficiently exhibit the cushioning property by the ear strap 3, so that a decrease in the wearing feeling can be suppressed.

[0030] Also, as shown in FIGS. 3 and 4, the ear strap 3 extends to the width direction end of the mask body 2 rather than the first welding portion 11A. Thereby, even on the width direction end side of the mask body 2 rather than the first welding portion 11A, the thickness of the mask 1 can be increased by the ear strap 3, and the possibility that the welding portion 11 indirectly contacts the skin via the side sheet 8 can be reduced.

[0031] In addition, in the present embodiment, since the ear strings 3 are joined to the mask body 2 so as to form a curve that bulges toward the center side of the mask body 2, when the ear strings 3 are put on the ears, the ear strings 3 are folded back to the outside of the mask body 2. As a result, the ear strings 3 enter between the fixing region 10 and the skin surface, and a double cushion can be formed by the ear strings 3 between the inserted ear strings 3, the first welding portion 11A, and the second welding portion 11B. Thereby, the mask 1 according to the present embodiment can reduce the possibility that the welding portion 11 indirectly contacts the skin via the side sheet 8, and can suppress a decrease in the wearing feeling.

[0032] In addition, as shown in FIG. 4, the side sheet 8 extends to the center side of the mask body 2 beyond the second welding portion 11B. According to this configuration, in the worn state of the mask 1, the ear strings 3 cause the side sheet 8 extending to the center side of the mask body 2 beyond the second welding portion 11B to rise up on the skin surface side, and the side sheet 8 fills the space between the mask 1 and the skin surface, preventing a gap from being formed between the mask 1 and the skin surface. Thereby, the mask 1 can improve the adhesion to the skin surface.

[0033] <Modification Example> Next, a mask according to a modification of the present embodiment will be described with reference to FIG. 5. FIG. 5 is a cross-sectional view of the mask 1 in the width direction similar to FIG. 4. The mask according to this modification does not include side sheets 8 and 9, and at both ends in the width direction of the mask body 2, covering the skin side of the ear strings 3 and 4 in the fixed region 10, the non-woven fabric 12 forming the mask body 2 is folded back toward the center side of the mask body 2, and the folded non-woven fabric 12 extends to the center side of the mask body 2 beyond the second welding portion 11B. Although illustration and description are omitted, the same applies to the side portion 6 side. Thus, the non-woven fabric 12 forming the mask body 2 may be folded back without providing the side sheet 8. Note that the non-woven fabric 12 may be a plurality of sheets constituting the mask body 2, or may be one of the plurality of non-woven fabrics constituting the mask body 2. According to this configuration, in the worn state of the mask 1, the ear string 3 causes the non-woven fabric 12 extending to the center side of the mask body 2 beyond the second welding portion 11B to rise on the skin side, and the space between the mask 1 and the skin surface can be filled by this non-woven fabric 12, preventing the formation of a gap between the mask 1 and the skin surface. Thereby, the mask 1 can improve the adhesion to the skin surface.

[0034] As described above, the embodiments of the mask in the present invention have been described, but the content of the present invention is not limited to the above embodiments. In the mask 1 of the above embodiment, the ear strings 3 and 4 are joined to the mask body 2 so as to form a curve convex toward the center side of the mask body 2, but it is not limited to this. For example, the ear strings 3 and 4 may be joined to the mask body 2 so as to form a curve convex to the outside of the mask body 2. Further, in the mask 1 of the above embodiment, the ear strings 3 and 4 are joined to the skin side of the mask body 2, but the ear strings 3 and 4 may be joined to the non-skin side of the mask body 2.

[0035] Note that the above embodiments and modifications can be combined with each other.

Explanation of reference numerals

[0036] 1 ·· Mask 2 ·· Mask body 3, 4 ·· Ear strings 5, 6 ·· Side portions 7 ·· Nose Fitter 8, 9 ·· Side Sheets 10 ·· Fixed Area 11 ·· Welded Part 11A ·· First Welded Part 11B ·· Second Welded Part 12 ·· Non-Woven Fabric

Claims

1. A mask comprising a mask body made of nonwoven fabric and a pair of ear loops fixed to both ends of the mask body in a width direction, A welding portion is formed in a fixing region where the ear hooks are fixed to the mask body, and the mask body and the ear hooks are welded to each other, The welded portion includes a first welded portion and a second welded portion arranged toward the center of the mask body at a distance from the first welded portion in the extension direction of the ear hook portion in the fixed region, The ear hook portion is string-shaped and has a thickness of 1.0 mm or more. The interval is equal to or greater than the thickness of the ear hook portion, The ear hook portion between the first welded portion and the second welded portion has a semicircular cross section when cut along the width direction of the mask body. mask.

2. The mask further includes a side sheet that covers the skin side of the ear hook portion in the fixing region, is disposed at both ends of the mask body in the width direction, and is joined to the mask body; The ear hooks are attached to the skin side of the mask body, The side sheets extend to a center side of the mask body beyond the second welded portion. The mask of claim 1 .

3. The interval is at least twice the thickness of the ear hook portion.

3. The mask according to claim 1 or 2.

4. The ear hook portion extends to a width direction end of the mask body beyond the first welded portion. A mask according to any one of claims 1 to 3.

5. The fixing regions are formed at both longitudinal ends of the mask body, The ear hooks are joined to the mask body so as to form a curve that is convex toward the center of the mask body. A mask according to any one of claims 1 to 4.

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