Three-dimensional mask for hygiene

Abstract

To provide a three-dimensional sanitary mask with excellent design and breathability. [Solution] A hygienic three-dimensional mask having a main body 10 and ear loops 20. The main body has, in order from the outside air side to the user side, at least an outer exposed portion A, a collection portion B, and an inner exposed portion C, where the outer exposed portion is made of mesh fabric, the collection portion is made of nonwoven fabric with collection function, and the inner exposed portion is made of nonwoven fabric with punched holes. The main body may also be configured to have a four-layer structure consisting of, in order from the outside air side to the user side, a first layer 30, a second layer 40, a third layer 50, and a fourth layer 60, where the first layer functions as the outer exposed portion, the second layer and / or third layer as the collection portion, and the fourth layer as the inner exposed portion.

Description

[Technical Field]

[0001] The present invention relates to a sanitary three-dimensional mask, and more particularly to a three-dimensional mask that is excellent in design, collection efficiency, and breathability. [Background technology]

[0002] As shown in Patent Document 1, conventional three-dimensional sanitary masks are known to have a three-layer structure including an outer nonwoven fabric layer, an inner nonwoven fabric layer, and a skin-side nonwoven fabric layer. Of these, the material and structure of the outer nonwoven fabric layer are selected from the viewpoint of capturing relatively large particles such as dust, pollen, and viruses (hereinafter referred to as "objects to be captured"); the material and structure of the inner nonwoven fabric layer are selected from the viewpoint of capturing particles that cannot be captured by the outer nonwoven fabric layer; and the material and structure of the skin-side nonwoven fabric layer are selected from the viewpoint of excellent contact with the wearer's skin. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-217461 Summary of the Invention [Problem to be solved by the invention]

[0004] One of the purposes of this invention is to provide a hygienic three-dimensional mask that has excellent design and breathability. [Means for solving the problem]

[0005] The present invention, which has been made to solve the above problems, is a three-dimensional hygienic mask having a main body and ear loops, wherein the main body has at least an outer exposed part, a collection part, and an inner exposed part, in that order from the outside air side to the user side, the outer exposed part is made of mesh fabric, the collection part is made of nonwoven fabric with collection function, the inner exposed part is made of nonwoven fabric with punched holes all over, and the outer exposed part is shaped like a veil that allows the collection part to be seen from the outside air side. In addition, the present invention may be configured so that the main body has a four-layer structure consisting of a first layer, a second layer, a third layer, and a fourth layer, in that order from the outside air side toward the user side, with the first layer being the outer exposed portion, the second layer and / or the third layer being the collection portion, and the fourth layer being the inner exposed portion. The present invention may also be configured such that the first layer is made of polyester fabric and the fourth layer is a nonwoven fabric made of heat-sealed fibers with round punched holes arranged in a staggered pattern at 60° intervals. The present invention also provides a mask having a PFE (particle collection efficiency), BFE (bacterial droplet collection efficiency), VFE (virus collection efficiency), and pollen particle collection efficiency of 99.9% or more based on the test method of JIS T 9001, a porosity of the fourth layer of 1.415625% or more, and a pressure loss value of 20.1 Pa / cm 2 ] may be configured as follows. [Effects of the Invention]

[0006] According to the present invention, at least one of the following effects can be achieved. (1) By constructing the outer exposed portion from mesh fabric, it is possible to create a veil-like aesthetic and obtain a mask with excellent design. (2) By constructing the outer exposed portion from mesh fabric, the base color of the second layer can be seen through the first layer, resulting in a mask with excellent design. (3) By constructing the outer exposed portion from mesh fabric, it is possible to prevent a decrease in breathability of the entire main body. (4) By constructing the inner exposed portion from a nonwoven fabric with punched holes, it is possible to create a layer that is more flexible than a nonwoven fabric without punched holes, thereby reducing discomfort when it comes into contact with the user's skin. (5) By forming the inner exposed portion from a nonwoven fabric with punched holes, it is possible to prevent a decrease in the breathability of the entire main body. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a schematic diagram (1) showing the overall configuration of a mask according to an embodiment. [Figure 2] Schematic diagram (2) showing the overall configuration of the mask according to the embodiment. FIG. [Figure 3] Schematic diagram (3) showing the overall configuration of the mask according to the embodiment. FIG. [Figure 4] Schematic diagram (4) showing the overall configuration of a mask according to an embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. [Example]

[0009] <1> Overall configuration (Fig. 1) The mask of this invention (hereinafter simply referred to as "this mask") is a hygienic mask used by users to prevent droplet infection and hay fever, and is a three-dimensional mask, among the masks generally divided into pleated and three-dimensional types. This mask is composed of a main body 10 and two ear hooks 20.

[0010] <2> Main body (Fig. 1) The main body 10 is a part for capturing objects to be captured, such as dust, pollen, viruses, and droplets, between the outside air side and the user side. In this invention, the device is configured to have at least an outer exposed portion A, a collection portion B, and an inner exposed portion C in this order from the outside air side to the user side. The outer exposed part A is the layer exposed to the outside air and is made of mesh fabric that does not affect the values ​​of PFE (particle collection efficiency), BFE (bacterial droplet collection efficiency), VFE (virus collection efficiency), and pollen particle collection efficiency based on the test method of JIS T 9001. The collection portion B is a layer sandwiched between the outer exposed portion A and the inner exposed portion C, and is made of a single layer or multiple layers of nonwoven fabric having collection function. The inner exposed portion C is a layer exposed to the user side and is made of nonwoven fabric with punched holes.

[0011] In this embodiment, as shown in FIG. 1, the main body 10 is configured to have a four-layer structure consisting of a first layer 30, a second layer 40, a third layer 50, and a fourth layer 60, in that order from the outside air side to the user side, with the first layer 30 functioning as the outer exposed portion A, the second layer 40 and the third layer 50 functioning as the collection portion B, and the fourth layer 60 functioning as the inner exposed portion C.

[0012] <2.1> Shape of the main body (Fig. 1, Fig. 2) In this embodiment, the main body 10 has a central joint 11 formed by crimping layers together near the center of the width (horizontal) of the main body 10, so that the periphery of the main body 10 conforms to the face of the user while providing a three-dimensional shape (bowl-like shape) that ensures space around the user's mouth. Therefore, this mask has a different shape and structure from common pleated masks that have pleats in the main body 10. The central joint 11 extends from the lower edge of the main body 10 to a position midway up the line to the upper edge. For convenience, a portion of the main body 10 near the upper edge where no joint is provided is defined as a non-jointed portion 12. With this configuration, when the mask is worn by a user, flexibility of the main body 10 located around the user's nose can be ensured.

[0013] <2.2> Edge processing (Fig. 1) In this embodiment, a portion (peripheral joint) formed by crimping each layer is provided on the periphery of the main body 10. This peripheral joint has a double structure consisting of an outer periphery side and an inner periphery side, and the spacing between the joint holes on the outer periphery side is narrower than the spacing between the joint holes on the inner periphery side.

[0014] <3> Ear hook (Figure 1) The ear hooks 20 are the parts where the user wears the mask. In the present invention, the shape, material, coloring, joining position, joining method, etc. of the ear hook portion 20 are not particularly limited. In this embodiment, ear hook portions 20 are provided on both sides of the main body portion 10, and each ear hook portion 20 is made of a string-like material, and is integrated with the main body portion 10 by providing a joint on the first layer 30 side that constitutes the main body portion 10, where the string-like portion is crimped or the like.

[0015] Next, each layer constituting the main body 10 will be described in detail.

[0016] <4> First layer (Figure 1, Figure 3) The first layer 30 is the outermost layer facing the outside air and functions as the outer exposed portion A in the present invention. The first layer 30 is made of a fabric having a mesh structure (mesh fabric). In the present invention, the mesh holes constituting the mesh structure of the first layer 30 can be circular, polygonal, or any other shape. The first layer 30 has mesh holes all over its surface and is highly breathable, so it cannot be expected to have the same level of collection function as the second layer 40 or third layer 50 described above. Furthermore, the first layer 30 has a veil-like structure, which makes it highly aesthetically pleasing on its own, and the second layer 40 (described later) can be seen through it, further improving the aesthetic appeal.

[0017] <5> Second and third layers (Figure 1) The second layer 40 and the third layer 50 are members that exert their respective collection functions when sandwiched between the first layer 30 and the fourth layer 60, and are layers that function as the collection section B in the present invention. In the present invention, the material, structure, and shape of the second layer 40 and the third layer 50 are not particularly limited, and any known filter material capable of capturing particles such as dust, pollen, viruses, and droplets can be used.

[0018] <6> Fourth layer (Figure 1, Figure 4) The fourth layer 60 is the innermost layer facing the user side and functions as the inner exposed portion C in the present invention. The fourth layer 60 can be made of a nonwoven fabric having punched holes, for example, a heat-sealable nonwoven fabric. In the present invention, the punched holes of the fourth layer 60 can be circular, polygonal, or any other shape.

[0019] For example, when round punched holes are arranged in a staggered pattern at 60° intervals over the entire surface of the fourth layer 60, the formula for calculating the aperture ratio of the fourth layer 60 is as follows:

[0020] [Number 1] Opening ratio [%]=90.6×D 2 / P 2 D: Punching hole diameter [mm] P: punching hole pitch [mm]

[0021] The fourth layer 60 has a certain collection function due to the nonwoven fabric having punched holes on the entire surface, and the punched holes on the entire surface also lead to improved flexibility and breathability, which contributes to reducing discomfort caused by contact with the user's skin and improving breathability.

[0022] <7> Comparative Test A comparative test was conducted between the three-dimensional mask according to the present invention and other masks. <7.1> Test conditions The following specimens 1 and 2 were used as samples and tested in accordance with JIS T 9001. (Testing organization: Kaken Test Center, a general incorporated foundation) (1) Test specimen 1: A mask employing the four-layer structure of the present invention, in particular the fourth layer (exposed inner part) being made of a nonwoven sheet-like material (opening ratio: 1.415625[%]) with round punched holes (diameter (D): 0.25 mm, pitch (P): 2 mm) arranged in a staggered pattern at 60° intervals. (2) Specimen 2: The sheet-like member constituting the fourth layer in Specimen 1 had no punched holes, and the other layers had the same structure as Specimen 1.

[0023] <7.2> Test results (1) Breathability (pressure loss) The pressure loss value of specimen 1 is 20.1 [Pa / cm 2 ], and the pressure loss value for test piece 2 is 21.5 [Pa / cm 2 ], and it was found that test specimen 1 had better breathability. (2) Collection efficiency Both test specimens had PFE (particulate filter efficiency), BFE (bacterial droplet filter efficiency), VFE (virus filter efficiency), and pollen particle filter efficiency of 99.9% or higher, and in particular, for test specimen 1, neither the first layer (exposed outer part) nor the fourth layer (exposed inner part) had any adverse effect on the values ​​of PFE (particulate filter efficiency), BFE (bacterial droplet filter efficiency), VFE (virus filter efficiency), and pollen particle filter efficiency based on the test method of JIS T 9001. [Explanation of symbols]

[0024] 10: Main body 11: Central junction 12: Non-joint part 13: Perimeter joint 20:Ear hook A: Outside exposed part B: Collection section C: Inner exposed part 30:First layer 40:Second layer 50: The third floor 60: Fourth floor

Claims

1. A sanitary three-dimensional mask having a main body and ear loops, The main body portion is The air conditioner has at least an outer exposed portion, a collection portion, and an inner exposed portion, in this order from the outside air side to the user side, The outer exposed portion is made of mesh fabric, The collection part is made of a nonwoven fabric having a collection function, the inner exposed portion is made of a nonwoven fabric having punched holes on the entire surface, The outer exposed portion is shaped like a veil that allows the collection portion to be seen through from the outside air side. Three-dimensional mask for hygiene.

2. The main body portion is The air conditioner has a four-layer structure consisting of a first layer, a second layer, a third layer, and a fourth layer in this order from the outside air side to the user side, the first layer is the outer exposed portion, the second layer and / or the third layer is the collection part, The fourth layer is the inner exposed portion. The sanitary three-dimensional mask according to claim 1.

3. The first layer is made of polyester fabric, The fourth layer is a nonwoven fabric made of heat-sealed fibers in which round punched holes are arranged in a staggered pattern at 60° intervals. The sanitary three-dimensional mask according to claim 2.

4. The main body has a PFE (particle collection efficiency), BFE (bacterial droplet collection efficiency), VFE (virus collection efficiency), and pollen particle collection efficiency of 99.9% or more based on the test method of JIS T 9001, the fourth layer has an opening rate of 1.415625% or more; The pressure loss value of the main body is 20.1 [Pa / cm ２ ] or less, The sanitary three-dimensional mask according to claim 3.

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