mask

Abstract

To provide a mask in which the nose fit component can be easily deformed appropriately. [Solution] The mask (1) comprises a cover portion (10) that covers the wearer's nose and mouth and is breathable, with a vertical direction (X) extending upward and downward when worn, a horizontal direction (Y) perpendicular to the vertical direction, a thickness direction (Z) perpendicular to the vertical and horizontal directions, a pair of ear loops (20) joined to each side of the cover portion, and a nose fit member (40) positioned at the upper end of the cover portion. The nose fit member is made of resin material. The maximum load in a bending test in which the nose fit member is bent in the thickness direction is 0.55N or more and 1.85N or less.

Claims

[Claim 1] When worn, the vertical direction extends upwards and downwards. The aforementioned vertical direction is perpendicular to the horizontal direction, The thickness direction perpendicular to the aforementioned vertical and horizontal directions, A cover that covers the wearer's nose and mouth and has a breathable covering portion, A pair of ear loops are attached to each of the two sides of the covering portion, A mask comprising a nose fit member positioned at the upper end of the covering portion, The aforementioned nose fit member is made of resin material, The maximum load in the bending test in which the nose fit member is bent in the thickness direction is 0.55 N or more and 1.85 N or less. The nose fit member comprises a core material extending in the lateral direction and a pair of covering members arranged on both sides of the core material in the thickness direction and covering the core material. The covering member extends from the core material on both sides in the longitudinal direction, A mask in which the ratio of the length of the core material in the longitudinal direction to the maximum thickness of the core material in the cross-section of the lateral outer portion of the nose fit member is higher than the ratio of the length of the core material in the longitudinal direction to the maximum thickness of the core material in the cross-section of the lateral central portion of the nose fit member. [Claim 2] The mask according to claim 1, wherein the length in the vertical direction of the extension region of the covering member that extends outward in the vertical direction from the core material is longer than the length in the vertical direction of the core material. [Claim 3] In the state of being worn, the vertical direction extending upward and downward, The aforementioned vertical direction is perpendicular to the horizontal direction, The thickness direction perpendicular to the aforementioned vertical and horizontal directions, A cover that covers the wearer's nose and mouth and has a breathable covering portion, A pair of ear loops are attached to each of the two sides of the covering portion, A mask comprising a nose fit member positioned at the upper end of the covering portion, The aforementioned nose fit member is made of resin material, The maximum load in the bending test in which the nose fit member is bent in the thickness direction is 0.55 N or more and 1.85 N or less. The nose fit member comprises a core material extending in the lateral direction and a pair of covering members arranged on both sides of the core material in the thickness direction and covering the core material. A mask in which the length in the vertical direction of the core material in the lateral outer portion of the nose fit member is longer than the length in the vertical direction of the core material in the lateral central portion of the nose fit member. [Claim 4] The mask according to any one of claims 1 to 3, wherein in the cross-section of the lateral outer portion of the nose fit member, the length of the core material in the vertical direction is longer than the maximum thickness of the core material. [Claim 5] Both the core material and the covering member are made of thermoplastic resin. The mask according to any one of claims 1 to 3, wherein the core material and the covering member are joined in at least a portion thereof. [Claim 6] The covering portion comprises a sheet positioned to sandwich the nose fit member in the thickness direction, and sheet joining portions extending in the lateral direction on each of the vertical sides of the nose fit member, which join the sheets together. The aforementioned sheet joint has multiple welded portions, which are formed by welding the sheets together, spaced apart in the lateral direction. The mask according to any one of claims 1 to 3, wherein the distance between the welded portions is shorter than the cross-sectional dimension of the core material in the lateral outer portion of the nose fit member. [Claim 7] The covering portion has a sheet that sandwiches the nose fit member in the thickness direction and is folded based on a plurality of folds that extend in the lateral direction. In the unfolded state of the cover portion, the number of layers of the sheet in the region between the uppermost fold among the multiple folds and the upper edge of the cover portion is the same as the number of layers of the sheet in the region extending downward from the upper fold in the unfolded state. The mask according to any one of claims 1 to 3, wherein the nose fit member is positioned in the region between the upper edge of the covering portion and the upper fold. [Claim 8] The covering portion has a sheet that is arranged sandwiching the nose fit member in the thickness direction, The mask according to any one of claims 1 to 3, wherein the sheet and the nose fit member are joined in at least a portion thereof. [Claim 9] The mask according to any one of claims 1 to 3, wherein the nose fit member is transparent or translucent. [Claim 10] The covering portion comprises a sheet positioned to sandwich the nose fit member in the thickness direction, and sheet joining portions extending in the lateral direction on each of the vertical sides of the nose fit member, which join the sheets together. The covering portion is sandwiched by the sheet joining portion in the vertical direction and has an upper region that extends over the entire horizontal area of ​​the covering portion. The mask according to any one of claims 1 to 3, wherein the weight of the nose fit member is lower than the total weight of the sheet in the upper region. [Claim 11] The covering portion has a sheet that is arranged sandwiching the nose fit member in the thickness direction, The covering portion comprises a first sheet layer located on one side of the nose fit member in the thickness direction, and a second sheet layer located on the other side of the nose fit member in the thickness direction, having a lower basis weight than the first sheet layer. A mask according to any one of claims 1 to 3, wherein, in a pressure test in which the lateral direction of the nose fit member is perpendicular to the planar direction of the second sheet layer, the outer lateral edge of the nose fit member is brought into contact with the planar direction of the second sheet layer, and the nose fit member is pressed in the thickness direction of the second sheet layer, the breaking strength of the second sheet layer is higher than the buckling strength of the nose fit member. [Claim 12] The mask according to any one of claims 1 to 3, wherein the nose fit member is made of resin material and does not have a metal member.

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