TW201909960A - Mask - Google Patents

Abstract

The present disclosure provides a mask which, when in use, easily reduces discomfort on a wearer's face and has an excellent wearing feel. A mask (1) is provided with a mask body (3), which has a longitudinal direction (L) and a transverse direction (C), and ear-hook parts (5). The mask body (3) is provided with a skin-facing surface (S1) and a non-skin-facing surface (S2), and has: fabric (9) forming part of the skin-facing surface (S1); and a nose cover part (39) comprising synthetic fabric and extending in the longitudinal direction (L) from a top periphery part (3A) that extends in the transverse direction (C) so as to cover the wearer's nose. The mean coefficient of friction (MIU) of the skin-facing surface of the synthetic fabric is 0.09-0.20, and the mean deviation of coefficient of friction (MMD) is 0.005-0.015. The MIU of the skin-facing surface of the fabric (9) is more than 0.25, or the MMD is more than 0.015.

Description

Masks

The present invention relates to a mask.

In recent years, various types of masks such as a pollen mask, a sanitary mask, and the like have been known. For example, the mask disclosed in the following Patent Document 1 includes a mask body, a band body, and a nose clip. The band body is fixed to the wearer by hanging on the ears or the head of the wearer. The predetermined position of the face; the nose clip portion is erected from the face of the mask body that is in contact with the face of the wearer toward the face of the wearer, and The bridge of the wearer's nose is covered from above.

The mask disclosed in the following Patent Document 1 can be restrained by including a nose clip that is erected from the face of the mask body that is in contact with the face of the wearer toward the face of the wearer. It is caused by the movement of the wearer's mouth and face from the original position of wearing.

[Patent Document 1] Japanese Patent Laid-Open No. 2014-30654

[Problems to be solved by the invention]

In the conventional mask disclosed in the above Patent Document 1, the face of one side of the mask body which is in contact with the wearer's face and the wearer's face, especially the nose, are easily in close contact when in use. The person is prone to feel abnormalities such as itching and pain on his face. In particular, when the face of one side of the mask body that is in contact with the face of the wearer is made of a cloth with fluff, such as gauze, the cloth is likely to cause irritation to the face of the wearer, and Easily feel abnormal. Therefore, an object of the present invention is to provide a mask which is easy to suppress the abnormal feeling of the wearer's face during use and has an excellent wearing feeling. [Technical means to solve the problem]

Then, the mask of the present invention includes a mask body having a longitudinal direction and a transverse direction, and ear-hook portions respectively extending from both edge portions of the mask body extending along the longitudinal direction, wherein: The mask body is provided with a skin-facing surface and a non-skin-facing surface on the opposite side of the mask, and has a cloth constituting a part of the skin-facing surface. The mask has the following system: covering the nose of the wearer from the edge The nose cover portion extending from the upper end edge in the horizontal direction to the longitudinal direction and composed of a synthetic fiber cloth, the MIU (average coefficient of friction) of the skin facing surface of the synthetic fiber cloth is 0.09 to 0.20, and the MMD ( The variation of the average friction coefficient) is 0.005 to 0.015, and the MIU of the skin facing surface of the aforementioned cloth is greater than 0.20, or the MMD is greater than 0.015. [Effect of the invention]

According to the present invention, there can be provided a mask which is easy to suppress the abnormal feeling of the wearer's face during use and has excellent wearing feeling.

[Aspect 1] 口 A mask comprising a mask body having a longitudinal direction and a transverse direction, and ear hanging portions respectively extending from both side edges of the mask body extending along the longitudinal direction, characterized in that: The mask body is provided with a skin-facing surface and a non-skin-facing surface on the opposite side thereof, and has a cloth constituting a part of the skin-facing surface. The mask has a system that covers the nose of the wearer from The nose cover portion extending along the transverse direction and extending at the upper end edge toward the longitudinal direction and composed of synthetic fiber cloth. The MIU (mean coefficient of friction) of the skin facing surface of the synthetic fiber cloth is 0.09 to 0.20, and MMD (The variation of the average friction coefficient) is 0.005 to 0.015, and the MIU of the skin facing surface of the cloth is greater than 0.20, or the MMD is greater than 0.015.

Since the mask body of this aspect is provided with a nose cover portion which is configured to cover the wearer's nose and is composed of a synthetic fiber cloth having predetermined friction characteristics, the nose cover portion contacts the wearer's face, especially The nose part is not easy to cause irritation to this part. In addition, the face mask of the present aspect, by having the nose cover portion in the mask body, can easily prevent the cloth from directly contacting the wearer's face, especially the nose portion. The MIU or MMD of the cloth is more than that of the synthetic fiber cloth. It is high and it is easy to cause irritation to the face of the wearer when touching the face. Therefore, the mask of this aspect is easy to suppress the abnormal feeling of the wearer's face and has excellent wearing feeling.

[Aspect 2] The mask according to aspect 1, wherein the fabric is a cellulose fabric.

Since the mask of this aspect is made of a cellulose cloth, it is easy to ensure the moisture absorption of the mask body and to have excellent wearing feeling.

[Aspect 3] The mask according to aspect 1 or 2, wherein the fibers constituting the fabric are formed by twisting a plurality of short fibers.

In the mask of this aspect, since the fibers constituting the fabric are twisted from a plurality of short fibers, the fiber ends of the short fibers or short fibers running out of the fiber bundles twisted from the short fibers are easy to be removed from the The facing surface of the cloth protrudes in the direction in which the wearer's face is located, and it is easy to cause irritation such as tingling on the wearer's face, especially the nose. However, since the mask of this aspect has the nose cover portion having the aforementioned structure disposed at a predetermined position, even if the mask body is composed of the aforementioned cloth whose texture is easy to cause irritation to the wearer's face, especially the nose portion, It is still easy to suppress the abnormal feeling on the face of the wearer and to have excellent wearing feeling.

[Aspect 4] The mask according to any one of Aspects 1 to 3, wherein the synthetic fiber cloth system has a plurality of dot-shaped embossed portions, and the total area of the plurality of dot-shaped embossed portions is the aforementioned composition. The area of the fiber cloth is 15 to 30%, and the SMD (surface roughness) of the aforementioned synthetic fiber cloth is 2.0 to 4.5 μm.

In this aspect of the mask, although the aforementioned synthetic fiber cloth constituting the nose cover portion is provided with a plurality of dot-shaped embossed portions, since it has an SMD within a predetermined range, it is difficult to have a rough feeling on the nose cover portion at the beginning of the use of the mask. It makes the wearer feel that it is easy to suppress the abnormality of the wearer's face. In addition, since the mask has a plurality of predetermined dot-shaped embossed portions, it is easy to suppress the raising of the synthetic fiber cloth constituting the nose cover portion, and it is easy to maintain the state where the raising is suppressed even after a certain period of use time. , And it is easy to suppress the abnormal feeling of the wearer's face. Therefore, the mask of this aspect, regardless of whether it is a stage of starting use or a stage after a certain period of time has elapsed from the start of use, can easily suppress the abnormal feeling of the wearer's face and have an excellent wearing feeling.

[Aspect 5] 之 The mask according to any one of Aspects 1 to 4, wherein: the present mask has a pleated structure for bulging toward the non-skin facing surface side during use, the aforementioned pleated structure It is provided with a first base portion and a second base portion that respectively constitute the upper and lower edge portions of the mask body, and a wrinkle portion located therebetween; in the longitudinal direction, the nose cover portion exceeds the aforementioned The edge part of the said lower end edge side of a 1st base part is extended.

In this aspect of the mask, since the nose cover portion and the pleated structure have a predetermined positional relationship, it is easier to suppress the cloth from contacting the face of the wearer, and it is easier to more surely suppress the abnormality of the face of the wearer.

[Aspect 6] 口 The mask according to any one of Aspects 1 to 5, wherein: 具备 the mask main body is provided with a notch portion recessed toward the central portion in the lateral direction at the edge portions on both sides. The notched portion forming region and the notched portion non-formed region where the notched portion is not formed. The mask body has at least the notched portion forming region at each of the two side edges, and has the notched portion facing away from the skin. The side sheet covering the side and the side facing the skin, The mask body is attached to the notch portion non-formation area of each of the two side edge portions, and has a side edge portion embossed portion extending along the longitudinal direction, and The rigidity of the notched portion forming region of each of the side edge portions is lower than the rigidity of the notched portion non-forming region of each of the two side edge portions.

The mask of this aspect uses the pleated structure and the embossed portion of the side edge portion having the aforementioned structure. When in use, it is easy to maintain the shape retention of the three-dimensional structure of the mask body. The notch becomes the starting point of deformation induction, and it is easy to improve the closeness of the mask body to the face during use. In addition, in this aspect of the mask, the mask body is provided with at least the notch portion forming region of each of the two side edge portions: a side that covers the notch portion from the non-skin facing surface side and the skin facing surface side. Sheet, it is easy to prevent the notch from directly contacting the wearer's face, and because the rigidity of the notch-forming area is lower than that of the non-formation of the notch, even though the notch-forming area is in contact with the wearer's face It is also easy to suppress the abnormal feeling of the wearer's face. Based on the above description, the mask of this aspect can improve the adhesion of the mask body to the face during use, and it is easy to more reliably suppress the abnormality of the face of the wearer.

[Aspect 7] The mask according to Aspect 6, wherein the mask body does not have the side edge portion embossed portion in the notch portion forming region of each of the edge portions on both sides.

Even if the area where the notch is formed is in contact with the face of the wearer, since the part does not have the embossed part of the side edge portion, the mask of this aspect is difficult to cause irritation to the face of the wearer, and it is easy to more reliably suppress the face of the wearer. Department of abnormality.

[Aspect 8] The mask according to Aspect 6 or 7, wherein the mask body has a laminated structure in which a non-skin facing surface is arranged on the non-skin facing surface side more than the fabric, The aforementioned cloth is a fabric, the aforementioned non-skin facing surface side cloth is composed of a synthetic fiber cloth, and the mask body is fused at the notch portion of each of the two side edges.

The aforementioned fabric is not sultry because it is a woven fabric and can maintain moisture absorption and breathability. Furthermore, in the mask body, the non-skin facing surface side fabric is fused at the notch portions of the two side edges, so that the non-skin facing surface side fabric and the fabric are easily fused at the fused portion, which is easy The positional displacement of the two fabrics is suppressed, and the strength of the mask can be more surely ensured. The shape retention of the three-dimensional structure of the mask body can be easily maintained. Therefore, it is easy to ensure the closeness of the mask body to the face more easily Suppresses the abnormality of the wearer's face.

[Aspect 9] The mask according to Aspect 8, wherein the non-skin facing surface side cloth has an end edge that is folded back toward the skin facing surface side while extending below the lateral direction of the mask body. The first refolded portion covers the cloth.

Near the lower end edge portion, the cloth is covered by the non-skin facing surface side cloth. Therefore, near the lower end edge portion, it is difficult for the cloth to directly contact the face of the wearer. The mask of this aspect is easier to suppress more reliably The abnormality of the wearer's face.

[Aspect 10] The mask according to Aspect 9, wherein the cloth has a second refolded portion that is folded back toward the skin facing surface side at the lower end edge, and the first refolded portion that is The length in the longitudinal direction is longer than the length in the longitudinal direction of the second refolded portion.

As the rigidity near the lower end edge is increased, the shape retention of the three-dimensional structure of the mask body is improved. In this mask, it is easier to more surely ensure the closeness of the mask body to the face, and it is easier to more reliably suppress the wearer's face. Department of abnormality.

[Aspect 11] 口 The mask according to any one of Aspects 1 to 10, wherein: the mask body is provided at a central portion in the longitudinal direction with an auxiliary embossing portion extending along at least a part of the lateral direction. .

With the auxiliary embossing part, it is easier to maintain the shape-retaining property of the three-dimensional structure of the mask body. The mask of this aspect is easier to more surely ensure the closeness of the mask body to the face, and it is easier to more reliably suppress the wearer's Abnormal feeling on the face.

Hereinafter, a preferred embodiment of the mask of the present invention will be described in detail with reference to the drawings. In the present invention, unless otherwise specified, "an object (for example, a mask, etc.) placed on a horizontal plane is viewed from the upper side in the vertical direction toward the thickness direction of the object" is simply referred to as "top view", and The plan created from this top view is called "top view".

Unless otherwise specified, various directions and the like used in the present invention are as follows.

In this specification, "longitudinal direction" means "upward and downward directions of a rectangular object in plan view", "horizontal direction" means "left-right direction of an rectangular object in plan view", and "thickness direction" means "Vertical with respect to an object placed on a horizontal plane." The longitudinal direction, the transverse direction, and the thickness direction have a mutually orthogonal relationship. In addition, the "planar direction" refers to a direction in which a plane formed by the longitudinal and lateral directions of an object extends.

In addition, in this specification, unless otherwise specified, in the thickness direction of an object (for example, a mask, etc.), "when wearing the object, the skin surface of the wearer is relatively close to the side" is referred to as " "Skin-facing surface side" refers to "non-skin-facing surface side", "when wearing an object, the skin-facing surface is relatively distant side". Also in this specification, the various members (for example, a mask body, a part of the skin-facing surface of the mask body, a non-skin-facing surface-side cloth, etc.) constituting an object are "skin-facing surface-side surfaces" "And" non-skin-facing surface "are referred to as" skin-facing surface "and" non-skin-facing surface, "respectively.

[Embodiment] FIG. 1 is a plan view when a mask 1 according to an embodiment of the present invention is viewed from the non-skin facing surface S2 side. FIG. 2 is a plan view when the mask 1 according to the embodiment of the present invention is viewed from the skin facing surface S1 side. FIG. 3 is a sectional view taken along the line III-III of FIG. 1. FIG. 4 is an electron micrograph (50 times magnification) when the skin-facing surface of the cellulose cloth 9 is viewed from the side. FIG. 5 is an electron micrograph (50 times magnification) when the skin-facing surface of the nasal cap portion 39 is viewed from the side. FIG. 6 is an electron microscope photograph (magnification: 20 times) when the skin-facing surface of the nasal cap portion 39 is viewed from above. FIG. 7 is a schematic diagram showing a wearing state of the mask 1 according to the embodiment of the present invention.

As shown in FIGS. 1 to 3, the mask 1 of this embodiment includes a mask body 3 and ear-hook portions 5 and 5 respectively extending from the edge portions 3 c and 3 c of the mask body 3. When the wearer wants to wear the mask 1, the mask body 3 is closely brought into contact with the face of the wearer, and the ear-hook part 5 is worn on both ears of the wearer.

[Mask body] As shown in Figures 1 and 2, the mask body 3 has a vertical direction (L) and a horizontal direction (C). Before wearing (unused), it has a horizontal direction (C) in plan view. Long rectangular shape. The mask body 3 includes a skin-facing surface S1 and a non-skin-facing surface S2 located on the opposite side of the skin-facing surface S1.

In this embodiment, the base material sheet 7 constituting the mask body 3 has a double-layer structure, that is, a cellulose cloth 9 (also referred to as " "Fabric" or "Fabric constituting part of the skin-facing surface of the mask body"), and synthetic fiber fabric 11 (non-skin-facing surface side fabric) constituting the non-skin-facing surface S2 . In the present invention, the cloth constituting a part of the skin-facing surface of the mask body can be formed by appropriately selecting a material having good hygroscopicity, breathability, and skin feel, and is particularly preferably, for example, made of 80 to 120 yarns. It is formed of a woven fabric, knitted fabric, or sheet material composed of cellulose fibers such as gauze and cotton.

In the present invention, the cloth constituting a part of the skin facing surface of the mask body has a MIU (average friction coefficient) of the skin facing surface of the cloth greater than 0.20 or an MMD (variation of average friction coefficient) greater than 0.015. The MIU facing the skin of the cloth is an indicator of the ease of sliding when the wearer rubs the skin facing the cloth. A larger number means that the wearer is more likely to feel difficult to slide. In addition, the MMD of the skin-facing surface of the cloth is an index of the smoothness or roughness felt when the wearer rubs the skin-facing surface of the cloth. A larger number indicates that the wearer is more likely to feel rough. (1) The fabric of the part of the skin facing surface of the mask body in the present invention has the above-mentioned MIU or MMD, which may cause a certain degree of irritation and abnormality to the wearer's face, especially the nose.

In this specification, the measurement method of the MIU and MMD of the cloth is as follows. After cutting a test piece of a predetermined size (for example, 100 mm × 10 mm) from the fabric to be measured, the MIU of each direction of the test piece (that is, a direction corresponding to the longitudinal direction and the lateral direction of the fabric to be measured) and MMD was measured using a friction tester KES SE (manufactured by Kado Technology Co., Ltd.), and the average ridges in each direction were calculated to obtain the MIU and MMD of the fabric.

In the present invention, the case where the fabric is hygroscopic means the following. A sample of the fabric, which is an evaluation target for hygroscopicity, was vacuum-dried at 110 ° C. for 24 hours, and the sample mass (W ₀ ) at the time of absolute drying was measured. Next, the sample was allowed to stand for 24 hours in a constant temperature and humidity machine adjusted to a temperature of 20 ° C. and a humidity of 90% RH, and the sample mass (W ₁ ) after standing was measured. When the sample mass is W ₁ > W ₀ , it is evaluated that the fabric of the sample is hygroscopic.

In addition, the non-skin facing surface side fabric of the present invention can be selected from various known synthetic fiber nonwoven fabric sheets such as meltblown nonwoven fabric, spunbond nonwoven fabric, SMS nonwoven fabric, and hot air nonwoven fabric having a basis weight of 10 to 40 g / m ² . The material is selected to be formed with good air permeability. Also, the non-skin facing fabric of the present invention may be a sheet material made of fabric or knitted fabric, but based on the viewpoint that the upper edge and the lower edge of the fabric do not easily cause irritation to the wearer's face , Preferably a sheet material made of non-woven fabric. Examples of the synthetic fibers constituting the nonwoven fabric sheet include polyolefin-based fibers such as polyethylene (PE) fibers and polypropylene (PP) fibers, polyester-based fibers, and polyamide-based fibers such as nylon. As will be described later, the synthetic fiber is preferably a hot-melt fiber from the viewpoint that the base sheet constituting the mask body is preferably embossed.

The base material sheet constituting the mask body is not limited to the above-mentioned configuration, and may be a single-layered structure including only a part of the cloth facing the skin facing surface of the mask body. Alternatively, the substrate sheet of the present invention may be an intermediate sheet interposed between a fabric forming a skin-facing surface and a non-skin-facing surface-side fabric forming a non-skin-facing surface. Filter function and / or contain fragrance and antibacterial agent. In addition, one or more fabrics made of natural or synthetic fabrics, knitted fabrics, or non-woven fabrics can be interposed between the fabric that forms part of the skin-facing surface of the mask body and the non-skin-facing surface fabric. .

In this embodiment, the cellulose cloth 9 is made of gauze, and the gauze is made of a knitted fabric made of a plurality of cellulose-based short fibers twisted together. The skin-facing surface T1 of the cellulose cloth 9 is as shown in FIG. 4, and the fiber end of the cellulose-based short fibers easily protrudes from the skin-facing surface T1 in the thickness direction T, which is caused by the fiber end and the wearer's skin Contact may cause irritation such as tingling to the wearer.

On the other hand, in this embodiment, the synthetic fiber cloth 11 is composed of a spunbond nonwoven fabric using long fibers. Unlike the cellulose fabric 9, the fiber end of the synthetic fiber fabric 11 does not easily protrude from the surface (skin-facing surface or non-skin-facing surface) of the synthetic fiber fabric 11 in the thickness direction T. Therefore, even if the synthetic fiber cloth 11 comes into contact with the skin of the wearer, there is no doubt that the wearer may be irritated, such as tingling. Also in this specification, short fibers refer to fibers with an average fiber length of 0.5 to 100 mm. In addition, the term “long fiber” means that the average fiber length is greater than 100 mm and that the continuous fiber is contained therein.

In the present invention, the average fiber length of synthetic fibers such as hot-melt fibers, and pulp other than cellulose-based fibers, such as regenerated cellulose fibers and semi-synthetic fibers, is in accordance with Annex A of JIS L 1015: 2010. "A7.1 Measurement of fiber length" "A7.1.1 Method A (standard method) method of measuring the length of each fiber on a glass plate with a scale" was measured. The above method is equivalent to the test method of ISO 6989 issued in 1981.

In the present invention, the number of fiber ends per unit area of the fabric constituting a part of the skin facing surface of the mask body is preferably more than the number of fiber ends per unit area of the non-skin facing surface side fabric. The number of fiber ends per unit area of each of the fabrics forming part of the skin-facing surface of the mask body and the non-skin-facing surface fabric can be evaluated by the following method. A sample of 10 mm × 10 mm was cut from a part of the skin facing surface of the mask body and a non-skin facing surface side fabric. In each sample, a part of the skin facing surface of the mask body was cut. The skin-facing surface of the cloth and the non-skin-facing surface of the non-skin-facing surface of the cloth were observed with an electron microscope, and the number of fiber ends protruding from the surface of each sample in the thickness direction was visually calculated, and thus obtained.

In this embodiment, the mask body 3 has an upper end edge 3a and a lower end edge 3b extending in the lateral direction (C). In addition, the mask body 3 has an upper end edge portion 3A, and the upper end edge portion 3A is a rectangular region extending downward from the entire upper end edge 3a in the longitudinal direction (L) by 10 mm. The mask body 3 has side edge portions 3c extending in the longitudinal direction (L) on both sides in the lateral direction (C). In this embodiment, although the length in the transverse direction (C) of each of the side edge portions 3c, 3c is 10 mm, the length in the transverse direction of the side edge portion of the present invention can be appropriately changed in a range of about 5 mm to 20 mm. Each of the side edge portions 3c and 3c of the mask body 3 is provided with a side edge sheet 13 described later. In addition, each of the side edge portions 3 c and 3 c of the mask body 3 is divided into a notch portion forming region 17 in which a notch portion 15 to be described later is formed, and a notch portion non-formation region 19 in which the notch portion 15 is not formed.

In the present invention, the length in the longitudinal direction of the mask body, that is, the length between the upper edge and the lower edge, is preferably about 60 mm to 100 mm in a state before being worn (unused), that is, in a non-expanded state. The horizontal dimension of the body is about 140 ~ 180mm. If the vertical and horizontal dimensions of the mask body adopt such a structure, the cheek and chin portions of a standard size for an adult wearer can be sufficiently covered.

In this embodiment, the mask body 3 has a pleated structure P for bulging toward the non-skin facing surface S2 side when worn. More specifically, as shown in FIG. 3, the base sheet 7 constituting the mask body 3 is formed with the first wrinkles 27a and the second wrinkles in order from the near side of the upper end edge 3a of the mask body 3. The pleated portion 27b and the third pleated portion 27c. The configuration and positional relationship of each of the first corrugated portion 27a to the third corrugated portion 27c are as follows, in a state before being worn (unused) of the mask body 3, that is, in a non-expanded state.

The first fold portion 27a includes a first base portion 21a, a mountain waist portion S3 located between the first base portion 21a and the first top portion 23a, a first top portion 23a, and a mountain waist portion between the first top portion 23a and the second base portion 21b. S4. In the first corrugated portion 27a, the first apex portion 23a is positioned closer to the lower end edge 3b than the upper end edge 3a. Further, in the first gather portion 27a, the length in the longitudinal direction (L) of the mountain waist portion S3 is shorter than the length in the longitudinal direction (L) of the mountain waist portion S4.

The second fold portion 27b includes a second base portion 21b, a mountain waist portion S5 located between the second base portion 21b and the second top portion 23b, a second top portion 23b, and a mountain waist portion located between the second top portion 23b and the third base portion 21c. S6. The second corrugated portion 27b is located closer to the non-skin-facing surface S2 than the first corrugated portion 27a. Further, in the second corrugated portion 27b, the second top portion 23b is located on the lower end edge 3b side than the first top portion 23a of the first corrugated portion 27a, and the second base portion 21b is located on the side of the first corrugated portion 27a. The first base portion 21a is closer to the lower end edge 3b. In the second pleated portion 27b, the length in the longitudinal direction (L) of the mountain waist portion S5 is shorter than the length in the longitudinal direction (L) of the mountain waist portion S6.

The third corrugated portion 27c includes a third base portion 21c, a mountain waist portion S7 located between the third base portion 21c and the third top portion 23c, a third top portion 23c, a mountain waist portion S8 located between the third top portion 23c and the bottom portion 25, and a bottom portion. 25. The mountain waist S9 between the bottom 25 and the fourth base 21d, and the fourth base 21d. The third wrinkle portion 27c is located closer to the non-skin facing surface S2 than the second wrinkle portion 27b. In the third corrugated portion 27c, the third top portion 23c is located on the lower end edge 3b side than the second top portion 23b of the second corrugated portion 27b, and the third base portion 21c is located on the side of the second corrugated portion 27b. The second base portion 21b is closer to the lower end edge 3b. In the third corrugated portion 27c, the fourth base portion 21d is located on the lower end edge 3b side than the third base portion 21c. In the third corrugated portion 27c, the bottom portion 25 is located on the upper end edge 3a side than the lower end edge 3b of the mask body 3, and on the lower end edge 3b side than the fourth base portion 21d. In the third pleated portion 27c, the sum of the length of the longitudinal direction (L) of the mountain waist S7 and the length of the longitudinal direction (L) of the mountain waist S9 is longer than the length of the longitudinal direction (L) of the mountain waist S8. Shorter.

The mask body 3 includes a base portion S10 located between the upper end edge 3a and the first base portion 21a, and a base portion S11 located between the fourth base portion 21d and the lower end edge 3b. As such, the bellows-like structure formed by the first pleated portion 27a to the third pleated portion 27c, the base portion S10, and the base portion S11 is the pleated structure P that becomes the mask body 3.

The mask body 3, before being worn (unused), at least a portion of the base portion S10 and the mountain waist portion S3, at least a portion of the mountain waist portion S4 and the mountain waist portion S5, at least a portion of the mountain waist portion S6 and the mountain waist portion S7, and the mountain waist portion At least a part of S9 and the base portion S11 are folded to overlap each other, and have a flat structure in the thickness direction T.

On the other hand, in the wearing state of the mask 1, the mask body 3 is stretched downward in the longitudinal direction (L) according to the length of the chin of the wearer, as shown in FIG. 4, The mask body 3 is raised toward the non-skin-facing surface S2 and deformed into an Ω shape. In the present embodiment, in the wearing state of the mask 1, the mountain waist S8 is the most raised surface, and is disposed at a position corresponding to the nose or mouth of the wearer.

In the present invention, the mask body does not have to have a pleated structure, and even if it has a pleated structure, its structure is not limited to the above structure, as long as it is configured so that the mask body faces the non-skin-facing side when worn. The side swell may be sufficient, and the specific configuration such as the number of wrinkles and the direction of wrinkles may be appropriately changed.

[Notch] As shown in FIGS. 1 and 2, in the present embodiment, each of the edge portions 3 c and 3 c on both sides of the mask body 3 has a notch 15 at a position lower than the longitudinal central axis C _L. . The notch portion 15 has a shape that is recessed toward the center portion of the mask body 3 in the lateral direction (C), and more specifically, has a shape gradually increasing from the side edges 3c, 3c on both sides toward the inner side of the lateral direction (C). The narrow V shape. The mask body 3 has a notch portion 15. When the mask 1 is used, the notch portion 15 easily becomes a starting point for inducing deformation of each of the side edge portions 3 c and 3 c. The adhesiveness to the wearer's face is improved, and the adhesion of the mask body 3 to the face can be improved.

In each of the edge portions 3 c and 3 c of the mask body 3, the cellulose fabric 9 is cut in a substantially V shape and the synthetic fiber fabric 11 is fused to form a notch portion 15.

In addition, the mask body 3 is divided into each of the two side edge portions 3 c and 3 c: a notched portion forming area 17 in which the notched portion 15 is formed, and a notched portion non-formed area 19 in which the notched portion 15 is not formed.

In addition, the notch portion of the present invention is not limited to the above-mentioned structure, and may have various known shapes such as a singular or plural linear shape, a curved shape, and the like. In addition, the notch portion of the present invention may be formed by cutting only a base sheet. When the base sheet is composed of a plurality of sheets, the sheets constituting the base sheet may be cut from each other. And crimped to form.

[Side edge sheet, embossed part, and folded-back part] As shown in FIGS. 1 and 2, in this embodiment, the mask body 3 is provided on both side edge parts 3c and 3c, respectively, and covers both side edge parts 3c, Each of the skin facing surfaces S1 and the non-skin facing surfaces S2 is a side sheet 13 of 3c. The side sheet 13 is disposed so as to sandwich the edge portions 3c and 3c of the base material sheet 7 of the double-layered mask body 3 composed of the cellulose fabric 9 and the synthetic fiber fabric 11, respectively. In addition, the side sheet of the present invention is not limited to the above-mentioned structure, as long as the notch portions are formed from the non-skin facing surface side and the skin facing surface side by the notch forming areas on the edges of at least two sides of the mask body. It can be made of cloth.

In addition, the fabric constituting the side sheet is the same as the non-skin facing fabric constituting the mask body. For example, it can be made of meltblown nonwoven spunbond nonwoven fabric, SMS nonwoven fabric, and hot air nonwoven fabric with a basis weight of 10 to 40 g / m ² . Among various known synthetic fiber nonwoven fabric sheets, a material having good air permeability is appropriately selected for formation. The fabric constituting the side sheet of the present invention may be a sheet material composed of a fabric or a knitted fabric. However, from the viewpoint that the side sheet is less likely to cause irritation to the wearer's face, it is preferably made of a non-woven fabric. Sheet material.

In the present embodiment, the mask body 3 has embossed portions 29 (also referred to as "side edge embossed portions") extending in the longitudinal direction (L) at both side edge portions 3c and 3c, respectively. ). More specifically, the base sheet 7 constituting the mask body 3, that is, the cellulose fabric 9 and the synthetic fiber fabric 11, and the side sheet 13 are embossed in the thickness direction T in the not-formed region 19, Thereby, the embossed portion 29 is formed. The embossed portions 29 of the present embodiment are arranged in two rows at the edge portions 3c and 3c on both sides, but the present invention is not limited to this structure, and may be formed in one row or three or more rows.

In addition, in the present embodiment, the mask body 3 does not have the embossed portion 29 in the notch portion forming region 17 of each of the side edge portions 3c and 3c.

In this embodiment, the rigidity of the notch-forming region 17 of each of the both-side edge portions 3 c and 3 c is lower than the rigidity of the notch-non-forming region 19 of each of the both-side edge portions 3 c and 3 c. In addition, the rigidity 缺口 of each of the notched portion forming area and the notched portion non-forming area of the edge portions on both sides is not particularly limited. The rigidity 値 can be obtained by a flexural rigidity test, that is, a predetermined size is cut out from the sheet material to be measured (For example, 100 mm × 10 mm) test piece, the test piece in each direction (that is, the direction corresponding to the longitudinal direction of the measurement target member) is deflected at a position corresponding to a notch-forming area or a non-notch-forming area. The flexural rigidity was measured using a bending tester KES FB-2 (manufactured by Kado Technology Co., Ltd.) to obtain a rigid frame.

As shown in FIG. 3, in this embodiment, the synthetic fiber cloth 11 constituting the base material sheet 7 has a lower end edge 3b extending toward the skin facing surface S1 side extending in the lateral direction (C) of the mask body 3. The first folded-back portion 31 is folded back, and the first folded-back portion 31 covers the cellulose fabric 9. In addition, the cellulose fabric 9 has a second folded-back portion 33 that is folded back toward the skin facing surface S1 side at the lower end edge 3b. In addition, the length L1 of the longitudinal direction (L) of the first folded-back portion 31 of the synthetic fiber fabric 11 is longer than the length L2 of the longitudinal direction (L) of the second folded-back portion 33 of the cellulose fabric 9.

In addition, the first fold-back portion 31 of the synthetic fiber cloth 11 and the second fold-back portion 33 of the cellulose cloth 9 are fixed to the vicinity of the lower end edge 3 b of the mask body 3 by an embossed portion 35. The first reflexed portion of the non-skin facing surface side cloth of the present invention and the second refolded portion of the cloth constituting a part of the skin facing surface of the mask body may be fixed with an adhesive such as HMA.

In the present embodiment, as shown in FIG. 2, the mask body 3 further includes an auxiliary embossing portion 37 extending in the lateral direction (C) at the center portion in the longitudinal direction (L). More specifically, in the mountain waist portion S6 of the second wrinkle portion 27b, the base sheet 7 constituting the mask body 3, the portion that does not overlap with the mountain waist portion S5 before the mask 1 is worn (unused), That is, the cellulose fabric 9 and the synthetic fiber fabric 11 are embossed to form an auxiliary embossed portion 37.

[Nose Cover] As shown in FIG. 2 and FIG. 3, in this embodiment, the mask body 3 is located closer to the skin-facing surface S1 than the cellulose cloth 9 in the longitudinal direction from the upper edge portion 3A. (L) The extended nose part 39. When the length in the longitudinal direction (L) of the nasal cap portion 39 is set to L3, L3 is approximately 30% of the length in the longitudinal direction (L) of the mask body 3 in a state before the mask 1 is worn (unused). The nose cover 39 includes a fixed end 38 fixed to the upper edge 3A of the mask body 3 with a hot-melt adhesive, and a free end 40 extending below the fixed end 38 in the lateral direction (C). When the mask 1 is used, the central portion in the lateral direction (C) of the fixed end 38 of the nose cover portion 39 is easily brought into contact with the root portion of the nose of the wearer, and the central portion in the lateral direction (C) of the free end 40 is easily made. It abuts on the tip of the nose of the wearer. In addition, the joining form of the nose cover portion to the upper edge portion of the mask body of the present invention is not limited to the above-mentioned form, and may be joined by other joining forms such as heat welding.

The nose cover portion 39 is made of a synthetic fiber cloth. When the wearer wears the mask 1, the nose cover portion 39 abuts on the wearer's nose.

In the present invention, the MIU of the synthetic fiber cloth constituting the nose cover portion has a range of 0.09 to 0.20, more preferably 0.09 to 0.0.18, and particularly preferably 0.09 to 0.15, which is based on making the wearer feel the nose cover easily Facilitates the easy sliding of the opposite skin. In addition, the MMD of the synthetic fiber cloth constituting the nasal cover has a numerical range of 0.005 to 0.015, more preferably 0.005 to 0.012, and particularly preferably 0.005 to 0.010, which is based on making the wearer easily feel the skin facing of the nasal cover View of the smoothness of the face. The MIU and MMD of the synthetic fiber cloth constituting the nasal cap portion of the present invention are lower than the MIU and MMD of the cloth forming a part of the skin facing surface of the mask body of the present invention, and are therefore lower than the skin of the mask body of the present invention. The cloth on one side of the facing surface causes a certain degree of irritation and anomalous feelings on the wearer's face, especially the nose.

In this embodiment, the nose cover portion 39 is made of a spun-bonded non-woven fabric using a long fiber similarly to the synthetic fiber cloth 11 constituting the mask body 3. As shown in FIG. 5, the skin-opposing surface U1 of the nose cover portion 39 does not protrude from the skin-opposing surface U1 in the thickness direction T in most of the fiber ends. Doubt about irritation such as tingling to the wearer. The synthetic fiber fabric constituting the nose cover portion of the present invention is the same as the non-skin facing fabric constituting the mask body, and can be made of, for example, a meltblown non-woven spunbond non-woven fabric, SMS non-woven fabric and hot air with a basis weight of 10 to 40 g / m ² Among various known synthetic fiber nonwoven fabric sheets such as a nonwoven fabric, a material having good air permeability is appropriately selected and formed.

The length in the longitudinal direction of the nose cover portion of the present invention is not limited to the above-mentioned length, but is preferably at least 30% of the length in the longitudinal direction of the mask body. In addition, the length of the nose portion in the longitudinal direction is preferably 30 to 80% of the length of the mask body in the longitudinal direction, more preferably 30 to 60% of the length of the mask body in the longitudinal direction, and particularly preferably the length of the mask body. 30 to 50% of the length in the direction. The lower limit of the preferable range of the length of the nose cover in the longitudinal direction is determined based on the viewpoint that it is easier to suppress the contact between the cloth and the wearer's face. The upper limit is based on the difficulty of the nose cover to abut the wearer. It is determined by the viewpoint that it is not easy for the wearer to have an abnormal feeling. In addition, the nasal cap portion of the present invention is preferably the first pleated structure of the super exit cover body from the viewpoint that it is easier to suppress the contact between the cloth and the wearer's face and to more reliably suppress the abnormality of the wearer's face. The end portion on the lower end edge side of the base portion extends.

As shown in FIG. 6, in this embodiment, the nose cover portion 39 includes a plurality of dot-shaped embossed portions 45. Each of the plurality of dot-shaped embossing portions 45 is formed by embossing the synthetic fiber cloth constituting the nose cover portion 39 in the thickness direction T. In the present invention, the total area of the dot-shaped embossed portion is preferably 15 to 30%, and more preferably 18 to 25% with respect to the area of the synthetic fiber cloth constituting the nose portion. The synthetic fiber cloth has both skin feel and strength.

In addition, in the present invention, the SMD (surface roughness) of the skin facing surface of the synthetic fiber cloth constituting the nasal cover portion has a number range of 2.0 to 4.5 μm, more preferably 2.0 to 4.0 μm, and particularly preferably 2.0 to 3.5 μm. The SMD of the skin-opposing surface of the synthetic fiber cloth indicates the degree of unevenness of the skin-opposing surface of the cloth. The larger the number, the more severe the unevenness.

In this specification, the method of measuring the SMD of the fabric is the same as that of the MIU and MMD as described below. After cutting a test piece of a predetermined size (for example, 100 mm × 10 mm) from the fabric of the measurement target, the SMD in each direction of the test piece (that is, a direction corresponding to the longitudinal direction and the lateral direction of the measurement target fabric) is rubbed. The KES SE (manufactured by Kado Technology Co., Ltd.) was measured and the average chirp in each direction was calculated to obtain the SMD of the cloth.

[Holding member] As shown in FIGS. 1 to 4, in this embodiment, the mask body 3 includes a holding member 41 on the upper end edge 3 a side to hold a part of the upper end edge 3 a in a predetermined shape. The holding member 41 is disposed between the synthetic fiber cloth 11 and the cellulose cloth 9 and is fixed by a embossing portion 43 disposed around the retaining member 41 so as not to be displaced.

The holding member of the present invention preferably has a thin plate rectangular shape, and is formed of a flexible thermoplastic resin (for example, plastic). The holding member 41 is configured so that the wearer can easily bend it, and once changed into a predetermined shape, the predetermined shape can be maintained as long as no external force is applied. Therefore, after the wearer wears the mask 1, if the holding member 41 is deformed according to the shape of the nose, the holding member 41 can match the vicinity of the upper edge 3a of the mask body 3 to the shape of the nose of the wearer. Keep it up. Thereby, the holding member 41 can suppress a gap from occurring between the upper end edge 3 a and the face of the wearer.

[Ear hanging part] The ear hanging part is preferably an elastic stretcher, and may be formed of a known material such as a non-woven fabric, a woven fabric, a plastic film, a rubber thread, and the like.

Next, the operation of the mask 1 according to this embodiment will be described. The mask 1 of this embodiment uses the embossed portion 29 extending in the longitudinal direction (L) in each of the pleated structure P and the side edge portions 3c and 3c, and it is easy to maintain the three-dimensional structure of the mask body 3 during use. It's conformal. In addition, the mask body 3 is provided with cutout portions 15 at the edge portions 3c and 3c on both sides, respectively. The cutout portions 15 serve as starting points for deformation induction. Therefore, it is easy to improve the adhesion of the mask body 3 to the face during use.

In addition, in the mask 1 of this embodiment, the mask body 3 is provided with a nose cover portion 39 that is configured to cover the wearer's nose and is made of a synthetic fiber cloth having predetermined friction characteristics, and the nose cover portion 39 contacts the face of the wearer It is not easy to cause irritation to the part, especially the nose part. In addition, in the mask 1 of this embodiment, since the mask body 3 is provided with a nose cover portion 39, it is easy to prevent the cellulose cloth 9 from directly contacting the wearer's face, especially the nose, and the MIU or MMD of the cellulose cloth 9 It is higher than the synthetic fiber cloth constituting the nasal cover portion 39, and it is easy to cause irritation to the face of the wearer when touching the face of the wearer. Therefore, the mask 1 of this embodiment is easy to suppress the abnormal feeling of the wearer's face and has excellent wearing feeling. More specifically, since at least a part of the skin-facing surface S1 of the mask body 3 is made of cellulose cloth 9, the hygroscopicity of the cellulose-based fibers makes it easy for the wearer to breathe in and out of the mask body 3. Moisture allows it to evaporate without being suffocated. On the other hand, when the cellulose cloth 9 constituting a part of the skin-facing surface S1 of the mask body 3 is composed of a knitted fabric of silk, such as gauze, which is twisted with cellulose-based short fibers, the fiber The fiber end of the plain short fiber easily protrudes from the skin-facing surface T1 in the thickness direction T. The fiber end may cause irritation such as stinging to the wearer due to the contact between the fiber end and the skin of the wearer. However, since the mask body 3 has a nose cover portion 39 made of a synthetic fiber cloth at a predetermined position, it is difficult for the wearer to feel the irritation or abnormality such as stinging. Based on the above description, the mask 1 of this embodiment can improve the hygroscopicity of the mask 1 and can easily suppress the abnormal feeling of the face of the wearer, thereby having an excellent wearing feeling. The mask 1 according to this embodiment is provided with a holding member 41 on the mask body 3, and the mask body 3 and the nose part of the wearer are easily brought into close contact with each other at a portion where the holding member 41 is provided. In addition, due to the rigidity of the holding member 41, in the portion where the holding member 41 is provided, the skin facing surface S1 of the mask body 3 easily rubs against the wearer's nasal root portion, etc., and is particularly prone to irritate the wearer. Therefore, as in this embodiment, the nose cover portion 39 is provided so as to cover the holding member 41, and it is easy to more surely suppress the abnormal feeling of the face of the wearer.

In addition, in the mask 1 of this embodiment, the cloth constituting a part of the skin-opposing surface S1 of the mask body 3 is made of a cellulose cloth. Therefore, it is easy to ensure the moisture absorption of the mask body more reliably.

In the mask 1 according to this embodiment, the fibers constituting the cellulose cloth 9 are twisted by a plurality of short fibers, and the fiber ends of the short fibers and the short fibers run out from the fiber bundles twisted by the short fibers. The fibers easily protrude from the skin-facing surface S1 of the cellulose cloth 9 toward the face of the wearer, and easily cause irritation such as stinging to the wearer's face, especially the nose. However, in the mask 1 of this embodiment, since the nose cover portion 39 having the above-mentioned structure is provided at a predetermined position, even if the mask body 3 is a cellulose that is likely to cause irritation to the wearer's face, especially the nose, due to its texture. The fabric 9 is still easy to suppress the abnormal feeling of the wearer's face and has excellent wearing feeling.

In addition, although the mask 1 of this embodiment is provided with a plurality of dot-shaped embossing portions 45 on the aforementioned synthetic fiber fabric constituting the nose cover portion 39, it has an SMD within a predetermined range. The unevenness of 39 is difficult for the wearer to feel, and it is easy to suppress the abnormal feeling of the wearer's face. In addition, since the mask 1 has a plurality of predetermined dot-shaped embossed portions 45, it is easy to suppress the fluff of the synthetic fiber cloth constituting the nose cover portion 39, and it is easy to maintain the fluff to be suppressed even after a certain period of use time. State, and it is easy to suppress the abnormality of the wearer's face. Therefore, regardless of whether the mask 1 of this embodiment is in a stage of starting use or a stage after a certain period of time has elapsed from the start of use, it is easy to suppress the abnormal feeling on the face of the wearer and to have excellent wearing feeling.

In addition, in the mask 1 of this embodiment, since the nose cover portion 39 and the pleated structure P have the above-mentioned positional relationship, it is easier to suppress the contact between the cellulose fabric 9 and the face of the wearer, and it is easier to more reliably suppress the face of the wearer Department of abnormality.

In addition, in the mask 1 according to this embodiment, the pleated structure P and the embossed portion 29 having the above-mentioned structure make it easy to maintain the conformity of the three-dimensional structure of the mask body 3 during use, and the mask body 3 has a gap. The portion 15 serves as a starting point for deformation induction. Therefore, it is easy to improve the adhesion of the mask body 3 to the face during use. In addition, in the mask 1 of the present embodiment, the mask body 3 is formed at least at respective notch-forming regions 17 on both side edges 3c, and is provided with covering the notch 15 from the non-skin-facing surface side S2 and the skin-facing surface side S1. The side sheet 13 makes it easy to suppress the notch 15 from directly contacting the wearer's face, and because the notch-forming region 17 is configured to have lower rigidity than the notch-non-forming region 19, the notch-forming region 17 Contact with the wearer's face can also easily suppress the abnormality of the wearer's face. Based on the above description, the mask 1 according to this embodiment can improve the adhesion of the mask body 3 to the face during use, and can more easily suppress the abnormality of the wearer's face.

In addition, in the mask 1 of the present embodiment, since the notch-forming region 17 does not have an embossed portion, even if the notch-forming region 17 is in contact with the face of the wearer, the mask 1 of this embodiment is still not easy for the wearer. The irritated face causes irritation, and it is easy to more surely suppress the abnormal feeling of the wearer's face.

Moreover, in the mask 1 of this embodiment, since the cellulose cloth 9 is a woven fabric, it can maintain moisture absorption and has air permeability, and it is not easily sultry. Furthermore, in the mask body 3, the synthetic fiber cloth 11 is fused at the cutout portions 15 of the edge portions 3c on both sides. Therefore, the synthetic fiber cloth 11 and the cellulose cloth 9 are fused at the fused portion, and the positional deviation of the two cloths is easily suppressed. It is easy to more reliably ensure the strength of the mask 1 and maintain the shape retention of the three-dimensional structure of the mask body 3, so it is easier to more surely ensure the closeness of the mask body 3 to the face, and it is easier to more reliably suppress the wearer's Abnormal feeling on the face.

In addition, the mask 1 of this embodiment is near the lower end edge 3b of the mask body 3, and the cellulose cloth 9 is covered with the synthetic fiber cloth 11. Therefore, the cellulose cloth 9 is difficult to directly contact the face of the wearer near the lower edge 3b. . Therefore, the mask 1 according to the present embodiment can more easily suppress the abnormal feeling on the face of the wearer.

In addition, in the mask 1 of this embodiment, the rigidity of the three-dimensional structure of the mask body 3 is improved by using the second refolded portion 33 of the mask body 3 to increase the rigidity near the lower end edge 3b. Therefore, in the mask 1 of this embodiment, it is easy to ensure the adherence of the mask body 3 to the face more reliably, and it is easier to more surely suppress the abnormality of the wearer's face.

In addition, in the mask 1 of the present embodiment, it is easier to maintain the shape retention of the three-dimensional structure of the mask body 3 by using the auxiliary embossing portion 37. Therefore, in the mask 1 of this embodiment, it is easy to ensure the adherence of the mask body 3 to the face more reliably, and it is easier to more surely suppress the abnormality of the wearer's face.

[Examples] (1) The following samples of the masks (1) to (8) of Examples 1 to 5 and Comparative Examples 1 to 3 were prepared, and the evaluation tests of the masks (1) to (8) were performed in the following manner.

(Example 1) An exit mask (1) was manufactured, and its nose portion with a longitudinal dimension of 35 mm and a transverse dimension of 148 mm was composed of a spunbond non-woven fabric A having a basis weight of 25 g / m ² , and constituted the skin-opposing surface of the mask body. One part of the fabric is made of 90 gauze a. The MIU of the skin facing surface of the spunbond nonwoven A was 0.17, and the MMD was 0.011.

(Example 2) An exit cover (2) was produced, and the nose cover portion having the same size as that of Example 1 was composed of a spunbond non-woven fabric B having a basis weight of 30 g / m ² and constituted a part of the skin facing surface of the mask body. The fabric is made of 90 gauze a. The MIU of the skin facing surface of the spunbond nonwoven B was 0.14, and the MMD was 0.008.

(Example 3) An exit cover (3) was produced. The nose cover was the same size as in Example 1. The nose cover was made of hot air non-woven fabric C with a basis weight of 40 g / m ² and constituted a part of the skin facing surface of the mask body. It consists of 90 gauze a. The MIU of the hot air non-woven fabric C facing the skin was 0.13, and the MMD was 0.007.

(Example 4) An exit cover (4) was produced, and the nose cover portion having the same size as that of Example 1 was composed of a spunbond non-woven fabric D having a basis weight of 25 g / m ² and constituted a part of the skin facing surface of the mask body. The fabric is made of 90 gauze a. The MIU of the skin facing surface of the spunbond nonwoven D was 0.14, and the MMD was 0.012.

(Example 5) An exit cover (5) was produced. The nose cover was the same size as in Example 1 and was composed of a spunbond non-woven fabric E with a basis weight of 23 g / m ² . The fabric is made of 90 gauze a. The MIU of the skin-facing side of the spunbond nonwoven E was 0.15, and the MMD was 0.010.

(Comparative example 1) (2) An exit cover (6) was produced, and the fabric facing the skin facing surface of the mask body was composed of 90 gauze cloths a, and it did not have a nose part. The MIU of the gauze a facing the skin was 0.14, and the MMD was 0.020.

(Comparative Example 2) (2) An exit cover (7) was produced. The cloth facing the skin facing the mask body was made of 80 gauze b, and it did not have a nose cover. The MIU of the gauze b facing the skin was 0.20 and the MMD was 0.025.

(Comparative Example 3) An exit cover (8) was produced, and the fabric facing the skin facing the mask body was made of a spunbond nonwoven fabric F having a basis weight of 20 g / m ² and had no nose cover portion. The MIU of the skin facing surface of the spunbond nonwoven F was 0.24 and the MMD was 0.009.

(Evaluation test method) (2) Each of the masks (1) to (8) was worn by 20 subjects for 5 minutes, and it was evaluated whether a stimulus or abnormality was felt on the face, especially the nose. The evaluation criteria of the masks (1) to (8) are as follows. ○: The number of subjects who answered that they felt irritation or abnormality on the face, especially on the nose, was 0 to 4. △: Five to twelve subjects answered that they felt irritation or abnormality on the face, especially on the nose. ×: 13 to 20 people answered that they felt irritation or abnormality on the face, especially on the nose.

The MIU, MMD, and evaluation test results of the masks (1) to (8) facing the skin of the cloth in contact with the wearer's nose are shown in Table 1 below.

In addition, the mask of the present invention is not limited to the above-mentioned embodiments and exemplary descriptions, and may be appropriately combined, changed, and the like within a range not departing from the object and the purpose of the present invention. In addition, in the present invention, the ordinal numbers such as "first" and "second" are used to distinguish items to which the ordinal number is added, and do not indicate the order, priority, and importance of each item.

1‧‧‧ mask

3‧‧‧Mask body

3a‧‧‧upper edge

3A‧‧‧upper edge

3b‧‧‧ lower edge

3c‧‧‧Side edge

5‧‧‧ear hook

7‧‧‧ substrate sheet

9‧‧‧cellulose cloth

11‧‧‧ synthetic fiber cloth

13‧‧‧side sheet

15‧‧‧ gap

17‧‧‧ gap formation area

19‧‧‧ Not formed area

21a‧‧‧1st base

21b‧‧‧Second Base

21c‧‧‧3rd base

21d‧‧‧4th base

23a‧‧‧Top 1

23b‧‧‧Top 2

23c‧‧‧Top 3

25‧‧‧ bottom

27a‧‧‧The first fold

27b‧‧‧ 2nd fold

27c‧‧‧The third fold

29‧‧‧ Embossing Department

31‧‧‧The first reflex section

33‧‧‧The second reflex section

35‧‧‧Embossing Department

37‧‧‧Auxiliary Embossing Department

38‧‧‧Fixed end

39‧‧‧ Nose

40‧‧‧ free end

41‧‧‧ holding member

43‧‧‧Embossing Department

45‧‧‧ Dot Embossing Section

S1‧‧‧ face to face

S2‧‧‧ Non-skin facing

S3 ~ S9‧‧‧‧Mountain waist

P‧‧‧ Pleated Structure

L1‧‧‧ Length of the 1st reflexed portion 31 in the longitudinal direction (L)

L2‧‧‧length of the second reflexed portion 33 in the longitudinal direction (L)

L3‧‧‧Length of the nose part 39 in the longitudinal direction (L)

C _L ‧‧‧ longitudinal central axis

FIG. 1 is a plan view when a mask 1 according to an embodiment of the present invention is viewed from the non-skin facing surface S2 side. FIG. 2 is a plan view when the mask 1 according to the embodiment of the present invention is viewed from the skin facing surface S1 side. FIG. 3 is a sectional view taken along the line III-III in FIG. 1. Fig. 4 is an electron microscope photograph (magnification of 50 times) when the skin-facing surface of the cellulose cloth 9 is viewed from the side. FIG. 5 is an electron microscope photograph (magnification of 50 times) when the skin facing surface of the nasal cover portion 39 is viewed from the side. FIG. 6 is an electron microscope photograph (magnification: 20 times) when the skin facing surface of the nasal cap portion 39 is viewed from above. 7 is a schematic view showing a wearing state of the mask 1 according to the embodiment of the present invention.

Claims (11)

A mask is provided with a mask body having a longitudinal direction and a transverse direction, and ear hanging portions respectively extending from both side edges of the mask body extending along the longitudinal direction. The mask is characterized in that: It has a skin-facing surface and a non-skin-facing surface located on the opposite side of the skin-facing surface, and has a part of the skin-facing surface. The mask includes: The upper end edge portion extends in the longitudinal direction and is a nasal cap portion composed of a synthetic fiber cloth. The MIU (average coefficient of friction) of the skin facing surface of the synthetic fiber cloth is 0.09 to 0.20, and the MMD Variation) is 0.005 ~ 0.015, the MIU of the skin facing the aforementioned cloth is greater than 0.20, or the MMD is greater than 0.015. The mask according to claim 1, wherein the cloth is a cellulose cloth. The mask according to claim 1 or 2, wherein the fibers constituting the fabric are formed by twisting a plurality of short fibers. The mask according to claim 1 or 2, wherein: the synthetic fiber cloth has a plurality of dot-shaped embossed portions, and the total area of the plurality of dot-shaped embossed portions is 15 to 30% of the area of the synthetic fiber cloth; The SMD (surface roughness) of the synthetic fiber fabric is 2.0 to 4.5 μm. The mask according to claim 1 or 2, wherein: the present mask has a pleated structure for bulging toward the non-skin-facing surface side during use, and the pleated structure is provided with: The first base portion and the second base portion of the upper end edge portion and the lower end edge, and the fold portion located therebetween. In the longitudinal direction, the nose cover portion is on the lower end edge side beyond the first base portion. Extending at the ends. The mask according to claim 1 or 2, wherein: The mask body is provided at the edge portions on both sides, respectively: a notch portion forming area where a notch portion recessed toward the central portion in the lateral direction is formed, and The non-formation area of the notch part of the notch part, the mask body, at least the notch part formation area of each of the two side edge parts has: covering the notch part from the non-skin-facing side and the skin-facing side. The side sheet, the mask body, is formed in the notch portion non-formation area of each of the two side edge portions, and includes: a side edge portion embossed portion extending along the longitudinal direction; The rigidity of the region is lower than the rigidity of the non-formed region of the notch portion at each of the two edge portions. The mask according to claim 6, wherein the mask body does not have the side edge portion embossed portion in the notch portion forming region of each of the two side edge portions. The mask according to claim 6, wherein the mask body has a laminated structure in which a non-skin facing surface is disposed on the non-skin facing surface side more than the cloth, the cloth is a fabric, and the non- The skin facing surface side fabric is composed of a synthetic fiber cloth. The mask body is fused at the notch portion of each of the two side edges. The mask according to claim 8, wherein the non-skin-facing surface side cloth has a first back-folded end edge that is folded back toward the skin-facing side in a state where the lower edge extends toward the lateral direction of the mask body. The first folded-back portion covers the fabric. The mask according to claim 9, wherein: the cloth has a second refolded portion which is folded back toward the skin facing surface side at the lower end edge, and the length of the first refolded portion in the longitudinal direction is The length in the longitudinal direction of the second refolded portion is longer. The mask according to claim 1 or 2, wherein: The mask main body includes an auxiliary embossing portion extending along at least a part of the horizontal direction at a central portion in the vertical direction.