Sanitary mask and manufacturing method thereof

Abstract

To provide a sanitary mask which allows dialogists to mutually communicate while reading the wearer's expression.SOLUTION: A sanitary mask is transparent or translucent. The sanitary mask has: a band-like sheet material curved in the longitudinal direction; a first filter which is made of a stretchable cloth or a foamed sheet cloth obtained by foaming a synthetic resin, is connected to one end of the sheet material in the width direction, and covers a room formed by the curved sheet material; a second filter which is made of a stretchable cloth or a foamed sheet cloth obtained by foaming a synthetic resin, is connected to the other end of the sheet material in the width direction, and covers a room formed by the curved sheet material; and constrictions which are disposed at the facing positions of both ends of the sheet material, and are convexly curved toward the inside from the outside of the sheet material.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a sanitary mask and a method for manufacturing a sanitary mask. [Background technology]

[0002] For example, Patent Document 1 discloses a face protection mask having a porous portion formed from a soft fabric and a see-through portion fixed to the porous portion and adapted to overlap at least a portion of the wearer's lips. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special Publication No. 10-508223 Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention aims to provide a sanitary mask that allows communication while reading facial expressions. [Means for solving the problem]

[0005] The sanitary mask of the present invention comprises a transparent or translucent band-shaped sheet material curved in the longitudinal direction, a first filter which is made of stretchable cloth fabric or a foamed sheet fabric made of foamed synthetic resin and is connected to one end of the sheet material in the width direction and covers the space between the curved sheet material, and a second filter which is made of stretchable cloth fabric or a foamed sheet fabric made of foamed synthetic resin and is connected to the other end of the sheet material in the width direction and covers the space between the curved sheet material.

[0006] Preferably, the sheet material has sheet surfaces on both sides facing each other and curved so that the central portion is convex, and further has a constriction that is provided at opposing positions on both sides of the sheet material and is convexly curved from the outside to the inside of the sheet material.

[0007] Preferably, when the sheet material is worn such that the wearer's lips are positioned between the two sides of the sheet material and the sheet material overlaps at least a portion of the wearer's lips, the waist is positioned in a position that comes into contact with the wearer's cheek.

[0008] Preferably, the first filter is positioned above the wearer's lips and the second filter is positioned below the wearer's lips, and the area covered by the second filter is greater than the area covered by the first filter.

[0009] Preferably, the first filter and the second filter are fabrics woven from threads having a thickness of 30 micrometers or less, and minute projections and recesses are formed on the inner sheet surface of the sheet material.

[0010] Preferably, the filter further comprises an elastic string and a through hole for passing the string, the through hole being provided on each of the first filter and the second filter, and the string is formed into a ring shape when inserted into the through hole.

[0011] Preferably, the sheet material further includes rod-shaped ear hooks connected to both ends in the longitudinal direction of the sheet material and capable of expanding and contracting in the longitudinal direction.

[0012] In addition, the manufacturing method of the sanitary mask according to the present invention includes a step of connecting one end in the width direction of a belt-shaped sheet material curved in the length direction to an elastic cloth fabric or a foamed sheet fabric made of foamed synthetic resin so as to cover the gap between the belt-shaped sheet material curved in the length direction, and a step of connecting the other end in the width direction of the sheet material to an elastic cloth fabric or a foamed sheet fabric made of foamed synthetic resin so as to cover the gap between the belt-shaped sheet material curved in the length direction. Effect of the Invention

[0013] According to the present invention, communication can be carried out while reading facial expressions. [Brief description of the drawings]

[0014] [Figure 1] FIG. 1 is a perspective view illustrating a sanitary mask 1 according to the present embodiment. [Diagram 2] FIG. 1 is a plan view of a sanitary mask 1 in this embodiment. [Diagram 3] The sanitary mask 1 is illustrated when worn. [Figure 4] 1A to 1C are diagrams illustrating modified examples of the sanitary mask 1 in this embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. However, the scope of the present invention is not limited to the illustrated examples. FIG. 1 is a perspective view illustrating a sanitary mask 1 according to the present embodiment. FIG. 2 is a plan view of the sanitary mask 1 in this embodiment. 1 and 2, the sanitary mask 1 has a shield 10, an upper filter 20, a lower filter 30, a string hole 40, and an elastic string 50. The upper filter 20 and the lower filter 30 are connected to the shield 10 by any of a sewing, welding, adhesion, or clamping method, and are sewn in this example.

[0016] The shield 10 is a belt-shaped sheet material curved in the length direction. The shield 10 is a sheet material in which both sheet surfaces (left sheet surface 14 and right sheet surface 15) face each other and maintain a curved shape with a convex central portion. The shield 10 has flexibility that allows it to be deformed by the elastic force of the rubber cord 50 described later and to maintain the deformed state. The shield 10 is also a transparent or semi-transparent sheet material. When the shield 10 is semi-transparent, it is preferable that the shield 10 has a transparency that allows the lips of the wearer wearing the sanitary mask 1 to be seen. Furthermore, fine irregularities are formed on the entire inner sheet surface of the shield 10. Due to these fine irregularities, an anti-fogging effect on the sheet surface can be expected. The shield 10 is an example of a sheet material according to the present invention.

[0017] The shield 10 also includes constrictions 12. The constrictions 12 are provided at opposing positions on both sides of the shield 10, i.e., at positions that are symmetrical, and are curved portions that are convex from the outside to the inside of the shield 10. As a result, even if the left sheet 14 and the right sheet 15 are separated, each constriction 12 serves as a fulcrum, and the convexly curved shape of the central portion of the shield 10 is maintained.

[0018] The upper filter 20 is a fabric that is connected to one end in the width direction of the shield 10, i.e., the upper end of the shield 10, includes a central portion curved to form a convex shape, and covers the space between the curved shield 10. When a wearer puts on the sanitary mask 1, the upper filter 20 is located above the wearer's lips and covers without any gaps from the convexly curved central portion to the waist 12. In other words, the area covered by the upper filter 20 is smaller than the area covered by the lower filter 30 described below. Moreover, the upper filter 20 is a stretchable cloth fabric or a foamed sheet fabric made of foamed synthetic resin, and has a plurality of voids large enough to at least prevent pollen, dust, and the like from passing through. When the upper filter 20 is a stretchable cloth fabric, it is made of, for example, a nonwoven fabric, a woven fabric, a knitted fabric, or a fabric made of elastic thread, and may be a multi-layer fabric combining these. Here, the fabric made of elastic thread is, for example, a fabric made of polyurethane fiber. When the upper filter 20 is a foamed sheet fabric made of foamed synthetic resin, it is, for example, a fabric made of polyurethane foam in a sheet shape. Note that the upper filter 20 in this example is a cloth fabric, and is made stretchable by providing a rubber cord 50 described later. Moreover, the cloth constituting the upper filter 20 is woven with threads having a thickness of 30 micrometers or less, specifically, 23 micrometers to 26 micrometers, and in this example, 25 micrometers. The spacing between the threads in the fabric is 30 micrometers or less, specifically 23 micrometers to 26 micrometers, 25 micrometers in this example. This allows the upper filter 20 to ensure breathability and prevent splashing. The upper filter 20 is an example of the first filter according to the present invention.

[0019] The lower filter 30 is connected to the other end in the width direction of the shield 10, i.e., the lower end of the shield 10, includes a central portion curved to form a convex shape, and is a fabric that covers the area between the curved shield 10. When the wearer puts on the sanitary mask 1, the lower filter 30 is located below the wearer's lips and covers the area from the convexly curved central portion to the end of the left sheet end 14 and the end of the right sheet end 15 without any gaps. In other words, the area covered by the lower filter 30 is larger than the area covered by the upper filter 20. The lower filter 30 is made of a stretchable cloth fabric or a foamed sheet fabric made of foamed synthetic resin, and has a plurality of voids large enough to at least prevent pollen, dust, etc. from passing through. When the lower filter 30 is made of a stretchable cloth fabric, it is made of a cloth fabric such as a nonwoven fabric, a woven fabric, a knitted fabric, or a fabric made of elastic thread, and may be a multi-layer fabric combining these. Here, the fabric made of elastic thread is, for example, a fabric made of polyurethane fiber. When the lower filter 30 is made of a foamed sheet fabric made of foamed synthetic resin, it is, for example, a fabric made of polyurethane foam in a sheet shape. The lower filter 30 in this example is made of a cloth, and is made of a stretchable cloth fabric by providing a rubber cord 50 described later. The cloth constituting the lower filter 30 is woven with threads having a thickness of 30 micrometers or less, specifically, 23 micrometers to 26 micrometers, 25 micrometers in this example. The spacing between the threads in the fabric is 30 micrometers or less, specifically, 23 to 26 micrometers, 25 micrometers in this example. This allows the lower filter 30 to ensure breathability and prevent splashing. The lower filter 30 is an example of the second filter according to the present invention.

[0020] The string passage opening 40 is a hole for passing the rubber string 50, and includes a string passage opening 40A provided continuous with one end of the shield 10 in the width direction and the upper filter 20, and a string passage opening 40B provided continuous with the other end of the shield 10 in the width direction and the lower filter 30. The string passage opening 40A and the string passage opening 40B have the same configuration and are holes large enough to pass the rubber string 50 through. The string passage opening 40 is one example of a passage opening according to the present invention.

[0021] The rubber cord 50 is a narrow textile product containing elastic threads and has elasticity. The rubber cord 50 in this example is a round rubber band. The rubber cord 50 is formed by connecting and integrating a rubber cord having a thickness that can be inserted through the cord passage opening 40A and a rubber cord having a thickness that can be inserted through the cord passage opening 40B. The rubber cord 50 in this example is formed into a ring shape by binding both ends of the rubber cord 50 when inserted through the cord passage openings 40A and 40B. The rubber cord 50 is an example of a cord according to the present invention.

[0022] FIG. 3 illustrates the sanitary mask 1 when worn. As shown in FIG. 3, the wearer can wear the sanitary mask 1 by positioning the shield 10 so that the lips are located between both sides of the shield 10 and at least a part of the wearer's lips overlaps with the shield 10, i.e., the wearer's lips are located in the center of the shield 10, and the elastic cord 50 is hung and fixed around the ears. At this time, the elastic cord 50 is stretched and contracted to adjust the distance between both sides of the shield 10 according to the size of the wearer's face, so that the inner surfaces on both sides of the shield 10, i.e., the waist 12, the sheet surface 14, and the sheet surface 15, are brought into close contact with the wearer's cheeks. The inner surface of the shield 10 near the waist 12 comes into contact with the wearer's cheek, making it difficult for a dent to remain on the wearer's face. In addition, the upper filter 20 covering the area near the nose has an elastic cord 50 disposed inside the cord passage opening 40A, so that gaps can be reduced by stretching the elastic cord 50. Similarly, the lower filter 30 covering the area under the chin has an elastic cord 50 disposed inside the cord passage opening 40B, so that gaps can be reduced by stretching the elastic cord 50. In addition, by placing the wearer's lips in the center of the shield 10, which is curved so that the center is convex, the shield 10 and the wearer's lips can be spaced apart, which reduces breathlessness and prevents rough skin.

[0023] Next, a method for producing the sanitary mask 1 (S10) will be described. In step 100 (S100), the manufacturer prepares a strip-shaped sheet of a predetermined size, and forms the strip-shaped sheet into a shape curved in the longitudinal direction so that the sheet surfaces at both ends of the prepared strip-shaped sheet face each other and the center is convex (production of shield 10). At this time, minute projections and recesses are formed on the sheet surface that will become the inside of shield 10, and constrictions 12 are formed. The manufacturer may also use bias tape or the like to wrap and sew the outer edge of shield 10. In step 102 (S102), the manufacturer prepares a fabric that will become the upper filter 20 and is connected to one end of the shield 10 in the width direction, and a fabric that will become the lower filter 30 and is connected to the other end of the shield 10 in the width direction, as fabrics large enough to cover the gap between the sheets of the shield 10 curved in the length direction. Then, string holes 40 are sewn into a part of each of the prepared fabrics. Next, the manufacturer sews and connects the fabric to the upper part of the shield 10 so as to cover the gap between the sheets of the shield 10 curved in the length direction (manufacturing the upper filter 20). In step 104 (S104), the manufacturer sews and connects a cloth to the lower part of the shield 10 so as to cover between the sheets of the shield 10 curved in the length direction (production of the lower filter 30). In step 106 (S106), the manufacturer passes the elastic string 50 through each of the string passage holes 40 provided in the upper filter 20 and the lower filter 30, respectively, and connects them. In this manner, the sanitary mask 1 can be manufactured.

[0024] As described above, the sanitary mask 1 of this embodiment uses a transparent or semi-transparent plate-shaped shield part and a cloth filter part in combination to function as a sanitary mask that allows the wearer's lips to be seen, and allows smooth communication while reading facial expressions. Therefore, it can be used by staff working in educational facilities such as nursery schools and special needs schools, hairdressers, guides at banks, flight attendants, restaurant waiters, doctors, nurses, pharmacists, beauty consultants, and other service workers, as well as hearing-impaired people.

[0025] Next, a modification of the above embodiment will be described. FIG. 4 is a diagram illustrating a modified example of the sanitary mask 1 in this embodiment. In the above embodiment, the elastic band 50 is hung around the ears, but the present invention is not limited to this. Instead of the elastic band 50, an adjustable ear loop 60 may be provided. As shown in FIG. 4, the adjustable ear loop 60 is a rod-shaped temple that expands and contracts in the length direction. The adjustable ear loop 60 is provided on both ends of the shield 10 in the length direction. This allows the sanitary mask 1 to be hung around the ears while adjusting the size for each individual. The adjustable ear loop 60 is an example of an ear loop according to the present invention. Moreover, the shield 10 of the above embodiment further includes string passage holes 40C and 40D at the outer edge thereof. The string passage holes 40A to 40D are through holes that are continuous with each other, and an elastic string 50 is disposed inside. [Explanation of symbols]

[0026] 1. Sanitary mask 10. Shield 12 Waistline 20 Top Filter 30 Lower Filter 40 Cord hole 50 Elastic Cord 60 Ear hook with adjustable function

Claims

1. A transparent or semi-transparent band-shaped sheet material curved in the length direction; A first filter is made of a stretchable cloth material or a foamed sheet material made of foamed synthetic resin, and is connected to one end of the sheet material in the width direction and covers the space between the curved sheet material; A second filter, which is made of a stretchable cloth fabric or a foamed sheet fabric made of foamed synthetic resin, is connected to the other end of the sheet material in the width direction and covers the space between the curved sheet material; An elastic string; a through hole for passing the string, the through hole being provided in each of the first filter and the second filter; having The string is formed into a ring shape when inserted through the through hole. A sanitary mask having

2. The sheet material is curved so that both sheet surfaces in the longitudinal direction of the sheet material face each other and the central portion is convex, The sheet material has a constriction that is provided at a position opposite to the other on both sides in the length direction of the sheet material and is convexly curved from the outside to the inside of the sheet material. Further having 2. The sanitary mask according to claim 1.

3. When the sheet material is worn such that the wearer's lips are located between both sides of the sheet material in the length direction and the sheet material overlaps at least a part of the wearer's lips, the waist is provided at a position that comes into contact with the wearer's cheek. The sanitary mask according to claim 2.

4. The first filter is positioned above the lips of the wearer, The second filter is positioned below the lips of the wearer, The area covered by the second filter is larger than the area covered by the first filter. The sanitary mask according to claim 3.

5. The first filter and the second filter are fabrics woven with threads having a thickness of 30 micrometers or less, The inner sheet surface of the sheet material is formed with minute projections and recesses. The sanitary mask according to claim 4.

6. The through hole provided in the first filter is provided continuously from one end of the sheet material in the width direction to the first filter, The through hole provided in the second filter is provided continuously between the other end of the sheet material in the width direction and the second filter. The sanitary mask according to claim 5.

7. A transparent or semi-transparent band-shaped sheet material curved in the longitudinal direction; A first filter is made of a stretchable cloth material or a foamed sheet material made of foamed synthetic resin, and is connected to one end of the sheet material in the width direction and covers the space between the curved sheet material; A second filter, which is made of a stretchable cloth fabric or a foamed sheet fabric made of foamed synthetic resin, is connected to the other end of the sheet material in the width direction and covers the space between the curved sheet material; The sheet material has rod-shaped ear hooks that are connected to both ends in the longitudinal direction and are stretchable in the longitudinal direction. A sanitary mask having

8. A step of connecting one end of the sheet material in the width direction to a stretchable cloth fabric or a foamed sheet fabric made of foamed synthetic resin so as to cover a gap between the belt-shaped sheet material curved in the length direction; a step of connecting the other end of the sheet material in the width direction to a stretchable cloth fabric or a foamed sheet fabric made of foamed synthetic resin so as to cover the gap between the belt-shaped sheet material curved in the length direction; a step of providing an opening for passing an elastic string through the elastic cloth fabric provided at both ends in the width direction of the sheet material or the foamed sheet fabric obtained by foaming a synthetic resin, inserting the string through the provided opening, and forming the inserted string into a ring shape; A method for producing a sanitary mask having the above structure.

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