TWI769283B - Face mask - Google Patents

Abstract

The present invention is to provide a mask which can easily suppress the abnormal feeling of the wearer's face during use and has an excellent wearing feeling. The mask (1) is provided with: a mask body (3) with a longitudinal direction (L) and a horizontal direction (C), and an ear hook portion (5). The skin-facing surface (S2) has: a fabric (9) constituting a part of the skin-facing surface (S1), and an upper edge portion ( 3A) A nose cover (39) extending in the longitudinal direction (L) and consisting of a synthetic fiber cloth, the MIU (average coefficient of friction) of the skin-opposing surface of the synthetic fiber cloth is 0.09 to 0.20, and the MMD (average coefficient of friction of Variation) is 0.005~0.015, and the MIU of the fabric (9) opposite to the skin is greater than 0.25 or the MMD is greater than 0.015.

Description

Face mask

The present invention is about masks.

In recent years, masks of various shapes, such as masks for pollen and sanitary masks, have been known.

For example, the mask system disclosed in the following Patent Document 1 has a mask body, a strap body, and a nose clip portion, and the strap body is used to fix the mask body to the wearer by hanging on the wearer's ears or head. The predetermined position of the face; the nose clip part is erected from the side of the mask body that is in contact with the wearer's face toward the wearer's face, and when wearing, the above-mentioned The bridge of the wearer's nose is covered from above.

The mask disclosed in the following Patent Document 1 is provided with a nose clip that stands up from the face of the mask body on the side that is in contact with the wearer's face in the direction of the wearer's face. It is displaced from the original position of wearing due to the movement of the wearer's mouth and face.

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

In the conventional mask disclosed in the above-mentioned Patent Document 1, when in use, the face on the side of the mask body that is in contact with the wearer's face and the wearer's face, especially the nose part, are likely to be in close contact with each other. Itching, pain and other abnormal sensations are easily felt on the face. In particular, when the face of the mask body on the side that is in contact with the wearer's face is made of a fluffed fabric such as gauze, the fabric is likely to irritate the wearer's face, and Feeling abnormal easily.

Then, the objective of this invention is to provide the mask which can suppress the abnormal feeling of a wearer's face easily at the time of use, and has excellent wearing feeling.

Then, the mouth mask of the present invention is equipped with: a mouth mask body with a longitudinal direction and a horizontal direction and the ear loops respectively extending from the both side edges of the aforementioned mouth mask body extending along the aforementioned longitudinal direction, it is characterized in that the aforementioned The mask body is provided with a skin-opposing surface and a non-skin-opposing surface located on the opposite side thereof, and has a skin-opposing side fabric that constitutes a part of the aforementioned skin-opposing surface, and the aforementioned mask body system has: to cover the wearer's face. The form of the nose extends from the upper end edge extending in the horizontal direction to the longitudinal direction and is made of a synthetic fiber cloth. The MIU (average coefficient of friction) of the skin-facing surface of the synthetic fiber cloth is 0.09~ 0.20, and MMD (variation of average friction coefficient) is 0.005~0.015, the MIU of the skin-opposite side of the aforementioned skin-opposite side fabric is greater than 0.20, or MMD greater than 0.015.

According to the present invention, it is possible to provide a mask which can easily suppress the abnormal feeling of the wearer's face during use and has an excellent wearing feeling.

[Aspect 1]

A kind of mouth mask is provided with: a mouth mask body with a longitudinal direction and a horizontal direction, and ear hooks respectively extending from the both side edges of the aforementioned mouth mask body extending along the aforementioned longitudinal direction, wherein the aforementioned mouth mask body is A skin-opposing surface and a non-skin-opposing surface located on the opposite side are provided, and a skin-opposing surface side fabric constituting a part of the skin-opposing surface is provided, and the mask system has the following: The upper end edge extending along the lateral direction is extended in the longitudinal direction and is made of a synthetic fiber cloth. (Variation of the average friction coefficient) is 0.005 to 0.015, and the MIU of the skin-opposing surface of the fabric on the skin-opposing surface side is greater than 0.20, or the MMD is greater than 0.015.

In the mask of this aspect, since the mask body is provided with: a nose cover portion made of a synthetic fiber cloth having predetermined friction characteristics arranged to cover the nose of the wearer, even if the nose cover portion comes into contact with the wearer's face, especially The nose part is also not easy to cause irritation to this part. In addition, in the mask of the present aspect, because the mask body is provided with the nose cover, it is easy to prevent the skin-opposing side fabric from directly contacting the wearer's face, especially the nose, and the MIU or MMD ratio of the fabric is easily suppressed. The aforementioned synthetic fiber cloth is taller and tends to irritate the wearer's face when it comes into contact with the face. Therefore, the mask of this aspect is easy to suppress the abnormal feeling of the wearer's face and has an excellent wearing feeling.

[Aspect 2]

The mask according to Aspect 1, wherein the fabric on the skin-opposing surface side is a cellulose fabric.

In the mask of this aspect, since the fabric on the skin-opposing surface side is made of cellulose fabric, the hygroscopicity of the mask body is easily ensured, and the wearing feeling is excellent.

[Aspect 3]

The mask according to Aspect 1 or 2, wherein the fibers constituting the fabric on the skin-opposing surface side are formed by twisting a plurality of short fibers.

In the mask of this aspect, since the fibers constituting the fabric on the opposite side of the skin are formed by twisting a plurality of short fibers, the fiber ends of the short fibers or the short fibers running out of the fiber bundles twisted by the short fibers are short. The fibers tend to protrude in the direction in which the face of the wearer faces the face of the wearer from the skin-opposing face of the fabric, and tend to cause irritation such as irritation to the face of the wearer, particularly the nose. However, in the mask of this aspect, since the nose cover portion having the above-mentioned structure is arranged at a predetermined position, even if the mask body has such a texture that is likely to cause irritation to the wearer's face, especially the nose portion, the skin-facing surface With the side fabric, it is easy to suppress the abnormal feeling of the wearer's face and has an excellent wearing feeling.

[Aspect 4]

The mask according to any one of aspects 1 to 3, wherein the synthetic fiber The woven fabric has a plurality of dot-shaped embossing parts, the total area of the plurality of dot-shaped embossing parts is 15~30% of the area of the synthetic fiber fabric, and the SMD (surface roughness) of the synthetic fiber fabric is 2.0~ 4.5μm.

In the mask of this aspect, although the synthetic fiber fabric constituting the nose cover is provided with a plurality of dot-shaped embossing parts, since it has SMD within a predetermined range, the unevenness of the nose cover is difficult at the stage of initial use of the mask. It is easy for the wearer to suppress the abnormal feeling of the wearer's face. In addition, since the mask has a plurality of predetermined dot-shaped embossing parts, it is easy to suppress the fluff of the synthetic fiber cloth constituting the nose cover part, and it is easy to maintain the state in which the fluff is suppressed even after a certain degree of use time. , and it is easy to suppress the abnormal feeling of the wearer's face. Therefore, the mask of this aspect is easy to suppress the abnormal feeling of the wearer's face and has an excellent wearing feeling regardless of the stage of starting use and the stage after a certain amount of time has elapsed since the start of use.

[Aspect 5]

The mask according to any one of aspects 1 to 4, wherein the mask main system has a pleated structure for bulging toward the non-skin-opposing surface side during use, and the pleated structure is provided with: The first base part and the second base part of the above-mentioned upper end edge and the lower end edge of the mask body, and the wrinkle part located therebetween, in the above-mentioned longitudinal direction, the above-mentioned nose cover part is beyond the above-mentioned first base part. The end portion on the lower edge side is extended.

In the mask of this aspect, since the nose cover and the pleat structure have a predetermined positional relationship, it is easier to suppress the contact between the fabric on the skin-opposing side and the wearer's face, and it is easier to more reliably suppress the wearer's face. unusual sense.

[Aspect 6]

The mask according to any one of aspects 1 to 5, wherein the mask body is provided on the edge portions on both sides respectively with: a notch forming area formed with a notch recessed toward the central portion of the lateral direction , and the notch portion non-formation area that does not form the aforementioned notch portion, the aforementioned mask body, at least in the aforementioned notch portion forming area of each of the aforementioned side edge portions has: the aforementioned notch portion from the non-skin facing side and the skin facing The side edge sheet covered by the face side, the mask body, is tied in the non-formed area of the notch portion of each of the edge portions of the aforementioned two sides, and has: an embossed portion of the side edge portion extending along the aforementioned longitudinal direction, and the edge portion of each of the aforementioned two side edges is The rigidity of the said notch part formation area is lower than the rigidity of the said notch part non-formation area of each of the said both side edge parts.

The mask of this aspect is easy to maintain the shape retention of the three-dimensional structure of the mask body during use by virtue of the pleated structure and the embossed portion of the side edge with the aforementioned structure. The notch becomes the starting point for deformation induction, and it is easy to improve the adhesion of the mask body to the face during use.

In addition, the mask of this aspect, the mask body, is equipped with at least the notch part forming area of each of the two side edge parts: the notch part is The side sheet covering the non-skin-opposing surface side and the skin-opposing surface side can easily suppress the direct contact between the notch and the wearer's face, and the rigidity of the notch-forming region is higher than that of the notch-non-forming region. The rigidity is lower, and even if the notch portion forming area is in contact with the wearer's face, it is easy to suppress the abnormal feeling of the wearer's face.

Based on the above description, when using the mask of this aspect, the adhesion of the mask body to the face can be improved, and the abnormal feeling of the wearer's face can be suppressed more reliably.

[Aspect 7]

The mask according to aspect 6, wherein the mask body does not have the side edge embossed portion in the notch portion forming region of each of the side edge portions.

Even if the notch-forming region is in contact with the wearer's face, since this portion does not have the side edge embossed portion, the mask of this aspect is less likely to irritate the wearer's face, and it is easy to more reliably restrain the wearer's face. Abnormal sense of the department.

[Aspect 8]

The mask according to aspect 6 or 7, wherein the mask body has a layered structure in which the non-skin-opposing surface side fabric is arranged on the non-skin-opposing surface side of the skin-opposing surface side fabric, The aforementioned skin-opposite side fabric is a fabric, and the aforementioned non-skin-opposite side fabric is made of synthetic fiber fabric, In the mask body, the fabric on the non-skin-opposing side is fused at the notch portion of each of the two side edges.

Since the said skin-opposing side fabric is a woven fabric, it maintains hygroscopicity and has air permeability, so it is not easy to get stuffy. Furthermore, in the aforementioned mask body, the aforementioned non-skin facing side fabric is fused in the aforementioned notch portion of each of the aforementioned edge portions on both sides, so that the aforementioned non-skin facing side fabric and the aforementioned skin facing face are fused at the fusing portion. The side fabrics are welded, it is easy to suppress the positional deviation of the two fabrics, and it is easy to ensure the strength of the mask more reliably. , it is easy to more surely suppress the abnormal feeling of the wearer's face.

[Aspect 9]

The mask according to aspect 8, wherein the non-skin-opposing surface side fabric has: a first folded edge that is folded toward the skin-opposing surface side at a lower end edge extending in the lateral direction of the mask body The first folded portion is a fabric covering the skin-opposing surface side.

In the vicinity of the lower edge portion, the fabric on the skin-opposing surface side is covered by the fabric on the non-skin-opposing surface side. Therefore, in the vicinity of the lower edge portion, the fabric on the skin-opposing surface side is less likely to come into direct contact with the wearer's face. The mask of this form can more surely suppress the abnormal feeling of the wearer's face.

[Aspect 10]

The mask according to aspect 9, wherein the fabric on the skin-opposing surface side has: a second skin-opposing surface side that is folded back at the lower end edge In the folded portion, the length of the longitudinal direction of the first folded portion is longer than the length of the longitudinal direction of the second folded portion.

Since the rigidity of the vicinity of the lower end edge portion is increased, the shape retention of the three-dimensional structure of the mask body is improved, and the mask of this aspect can more reliably ensure the closeness of the mask body to the face, and can more reliably restrain the wearer's face. Abnormal sense of the department.

[Aspect 11]

The mask according to any one of aspects 1 to 10, wherein the mask body has an auxiliary embossing portion extending along at least a part of the horizontal direction at the center portion in the longitudinal direction.

With the auxiliary embossing portion, it is easier to maintain the shape retention of the three-dimensional structure of the mask body, and the mask in this form can more reliably ensure the closeness of the mask body to the face, and it is easy to more reliably restrain the wearer's The abnormality of the face.

Hereinafter, the 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 placed on a horizontal plane (for example, a mask, etc.), viewed from the upper side of the vertical direction toward the thickness direction of the object" is abbreviated as "planning". A view created from the top view is referred to as a "plan view".

Various directions and the like used in the present invention are as follows unless otherwise specified.

In this specification, the "vertical direction" refers to the "up and down direction of a rectangular object in plan view", the "horizontal direction" refers to the "left-right direction of a rectangular object in plan view", and the "thickness direction" refers to "A vertical direction relative to an object placed on a horizontal plane". These longitudinal directions, transverse directions, and thickness directions have a mutually orthogonal relationship. In addition, "plane direction" refers to the direction in which the plane formed by the vertical and horizontal directions of the object extends.

In addition, in this specification, unless otherwise specified, in the thickness direction of the object (for example, a mask, etc.), "when the object is worn, the skin surface of the wearer is relatively proximal" is referred to as "" The "skin-opposing surface side", and "when the object is worn, the skin surface is relatively distal to the wearer" is referred to as the "non-skin-opposing surface side". Also in this specification, the surface of the "skin-opposing surface side" of the various components constituting the object (for example, the mask body, the fabric that constitutes a part of the skin-opposing surface of the mask body, the non-skin-opposing surface-side fabric, etc.) ” and “the surface on the side of the non-skin-opposite surface” are abbreviated as “skin-opposite surface” and “non-skin-opposite surface”, respectively.

[Embodiment] Fig. 1 is a plan view of a mask 1 according to an embodiment of the present invention when 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-opposing surface S1 side. FIG. 3 is a cross-sectional view taken along line III-III of FIG. 1 . FIG. 4 is an electron microscope photograph (magnification of 50 times) when the skin-opposing surface of the cellulose fabric 9 is observed from the side. FIG. 5 is an electron microscope photograph (magnification of 50 times) when the skin-opposing surface of the nose cover 39 is viewed from the side. FIG. 6 is an electron microscope photograph (magnification of 20 times) when the skin-opposing surface of the nose cover portion 39 is viewed from above. FIG. 7 is a schematic diagram showing the wearing state of the mask 1 according to the embodiment of the present invention.

As shown in Figures 1 to 3, the mask 1 of the present embodiment is provided with a mask body 3 and ear hooks 5 and 5 respectively extending from both side edges 3c and 3c of the mask body 3. When the wearer wants to put on the mask 1 , the mask body 3 is closely attached so as to face the wearer's face, and the ear loops 5 are hung on both ears of the wearer to wear.

[Mask body] As shown in Figures 1 and 2, the mask body 3 has a vertical direction (L) and a horizontal direction (C), and in the state before wearing (not in use), it has a horizontal direction (C) in a plan view. Longer rectangular shape. In addition, the mask body 3 includes a skin-opposing surface S1 and a non-skin-opposing surface S2 located on the opposite side of the skin-opposing surface S1.

In the present embodiment, the base material sheet 7 constituting the mask body 3 has a double-layer structure, that is, it has: a cellulose fabric 9 (also referred to as a "" fabric” or “fabric that constitutes a part of the skin-opposing surface of the mask body”), and a synthetic fiber fabric 11 that constitutes the non-skin-opposing surface S2 (also referred to as “non-skin-opposing side fabric” in the present invention) . In the present invention, the fabric that constitutes a part of the skin-facing surface of the mask body can be appropriately selected from materials with good hygroscopicity, air permeability, and good skin touch. It is formed of a woven fabric composed of cellulose fibers such as gauze and cotton, a sheet material composed of a knitted fabric or a non-woven fabric.

In the fabric that constitutes a part of the skin-facing surface of the mask body in the present invention, the MIU (average coefficient of friction) of the skin-facing surface of the fabric is greater than 0.20 or the MMD (variation of average friction coefficient) is greater than 0.015. The MIU of the skin-opposite side of the fabric is an indicator of the difficulty of sliding that the wearer feels when rubbing the skin-opposite surface of the cloth. In addition, the MMD of the skin-opposing surface of the fabric is an indicator of the smoothness or roughness that the wearer feels when rubbing the skin-opposing surface of the fabric, and the larger the value, the more likely the wearer feels roughness. The fabric that constitutes a 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 methods for measuring MIU and MMD of fabrics are as follows. After cutting out a test piece of a predetermined size (for example, 100 mm×10 mm) from the fabric to be measured, the MIU and MMD was measured using a friction tester KES SE (manufactured by Kado Technology Co., Ltd.), and the average value in each direction was calculated to obtain the MIU and MMD of the fabric.

Moreover, in this invention, a fabric has hygroscopicity means the following cases. The sample of the fabric which is the evaluation object of hygroscopicity was vacuum-dried at 110 degreeC for 24 hours, and the sample mass (W0 ₎ at the time of absolute drying was measured. Next, the sample was left 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 mass (W ₁ ) of the sample after the stand was measured. When the sample mass was W ₁ >W ₀ , the fabric of the sample was evaluated as having hygroscopicity.

In addition, the non-skin-facing side fabric of the present invention can be suitably selected from various well-known synthetic fiber non-woven fabric sheets such as meltblown non-woven fabrics, spun-bonded non-woven fabrics, SMS non-woven fabrics, and hot air non-woven fabrics with a basis weight of 10 to 40 g/m ² . Choose a material with good air permeability to form. In addition, the non-skin facing side fabric of the present invention may also be a sheet material composed of woven fabric or knitted fabric, but it is based on the viewpoint of making the upper edge and lower edge of the fabric less likely to cause irritation to the wearer's face. , preferably a sheet material composed of non-woven fabrics. Further, examples of synthetic fibers constituting the nonwoven sheet include polyolefin fibers such as polyethylene (PE) fibers and polypropylene (PP) fibers, polyester fibers, and polyamide fibers such as nylon. As will be described later, from the viewpoint that the substrate sheet constituting the mask body is preferably embossed, the above-mentioned synthetic fibers are preferably hot-melt fibers.

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

In the present embodiment, the cellulose fabric 9 is composed of gauze, and the gauze is composed of a knitted fabric of silk twisted and synthesized by a plurality of cellulose-based short fibers. The skin-facing surface T1 of the cellulose fabric 9 is as shown in FIG. 4 , and the fiber ends of the cellulose-based short fibers tend to protrude from the skin-facing surface T1 in the thickness direction T, because the fiber ends and the wearer's skin Contact may cause irritation such as stinging to the wearer.

On the other hand, in the present embodiment, the synthetic fiber fabric 11 is made of a spunbond nonwoven fabric using long fibers. Unlike the cellulose fabric 9 , the fiber ends of the synthetic fiber fabric 11 do not easily protrude in the thickness direction T from the surface (skin-facing or non-skin-facing surface) of the synthetic fiber fabric 11 . Therefore, even if the synthetic fiber fabric 11 comes into contact with the wearer's skin, there is no fear of causing irritation such as stinging to the wearer. Also in this specification, short fibers refer to fibers with an average fiber length of 0.5 to 100 mm. In addition, long fibers mean that the average fiber length is greater than 100 mm, which contains continuous fibers.

In the present invention, the average fiber length of synthetic fibers such as thermofusible fibers, and other than pulp among cellulosic fibers, such as regenerated cellulose fibers and semi-synthetic fibers, is in accordance with "Attachment A" of JIS L 1015:2010. A7.1 Measurement of Fiber Length "A7.1.1 Method A (Standard Method) Method for Measuring the Length of Each Fiber on a Glass Plate with a Gradation". 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-opposing surface of the mask body is preferably greater than the number of fiber ends per unit area of the fabric on the non-skin-opposing surface side. The number of fiber ends per unit area of each of the fabrics constituting a part of the skin-opposing surface of the mask body and the fabrics on the non-skin-opposing surface side can be evaluated according to the following method. Samples of 10 mm × 10 mm were cut out from the fabric constituting a part of the skin-facing surface of the mask body and the fabric on the non-skin-facing surface side, and in each sample, a part of the skin-facing surface constituting the mask body was cut. The skin-opposing surface of the fabric and the non-skin-opposing surface of the fabric on the non-skin-opposing surface side can be obtained by observing with an electron microscope and visually counting the number of fiber ends protruding from the surface of each sample in the thickness direction.

In the present embodiment, the mask body 3 has an upper end edge 3a and a lower end edge 3b extending in the lateral direction (C). Moreover, the mask main body 3 has 3 A of upper end edge parts, and 3 A of upper end edge parts are rectangular-shaped regions extending 10 mm downward in the longitudinal direction (L) from the entire upper end edge 3a. Furthermore, the mask body 3 has side edge portions 3c extending along the longitudinal direction (L) on both sides in the lateral direction (C). In the present embodiment, the length in the lateral direction (C) of each of the side edge portions 3c and 3c is 10 mm, but the length in the lateral direction of the side edge portion in the present invention can be appropriately changed in the range of about 5 mm to 20 mm. The side edge sheets 13 mentioned later are respectively arrange|positioned at the side edge parts 3c and 3c of the mask main body 3. In addition, the side edge portions 3c and 3c of the mask body 3 are each divided into a notch portion forming region 17 where a notch portion 15 described later is formed, and a notch portion non-forming region 19 where the notch portion 15 is not formed.

In the present invention, the size of the longitudinal direction of the mask body, that is, the length between the upper end edge and the lower end edge, is preferably about 60mm to 100mm in the state before wearing (unused), that is, in the non-deployed state. The horizontal dimension of the main body is about 140~180mm. If the dimensions of the mask body in the vertical and horizontal directions are configured in this way, the standard-sized cheeks and chin of an adult wearer can be fully covered.

In the present embodiment, the mask body 3 has a gather structure P for bulging toward the non-skin-opposing surface S2 side when worn. More specifically, as shown in FIG. 3 , in the base material sheet 7 constituting the mask body 3, the first wrinkle portion 27a, the second wrinkle portion 27a and the second wrinkle are sequentially formed from the proximal side of the upper end edge 3a of the mask body 3. The pleated part 27b and the third pleated part 27c. The configuration and positional relationship of each of the first to third gathers 27a to 27c are as follows in the state before the mask body 3 is put on (unused), that is, in the non-expanded state.

The first corrugated portion 27a includes a first base portion 21a, a mountainside portion S3 located between the first base portion 21a and the first top portion 23a, a first top portion 23a, and a mountainside portion located between the first top portion 23a and the second base portion 21b S4. In the 1st corrugated part 27a, the 1st top part 23a is located in the lower edge 3b side rather than the upper edge 3a. Moreover, in the 1st corrugated part 27a, the length of the longitudinal direction (L) of the mountainside part S3 is shorter than the length of the longitudinal direction (L) of the mountainside part S4.

The second corrugated portion 27b includes a second base portion 21b, a mountainside portion S5 located between the second base portion 21b and the second top portion 23b, a second top portion 23b, and a mountainside portion located between the second top portion 23b and the third base portion 21c S6. The second gathered portion 27b is located on the non-skin facing surface S2 side rather than the first gathered portion 27a. Moreover, in the 2nd gather part 27b, the 2nd top part 23b is located in the lower edge 3b side rather than the 1st top part 23a of the 1st gather part 27a, and the 2nd base part 21b is located rather than the 1st gather part 27a. The first base portion 21a is further on the lower edge 3b side. Moreover, in the 2nd corrugated part 27b, the length of the longitudinal direction (L) of the mountainside part S5 is shorter than the length of the longitudinal direction (L) of the mountainside part S6.

The third corrugated portion 27c includes a third base portion 21c, a mountainside portion S7 between the third base portion 21c and the third top portion 23c, a third top portion 23c, a mountainside portion S8 between the third top portion 23c and the bottom portion 25, and a bottom portion 25. The mountainside portion S9 between the bottom portion 25 and the fourth base portion 21d, and the fourth base portion 21d. The 3rd gather part 27c is located in the non-skin opposing surface S2 side rather than the 2nd gather part 27b. Moreover, in the 3rd gather part 27c, the 3rd top part 23c is located in the lower edge 3b side rather than the 2nd top part 23b of the 2nd gather part 27b, and the 3rd base part 21c is located rather than the 2nd gather part 27b. The second base portion 21b is further on the lower edge 3b side. Moreover, in the 3rd gather part 27c, the 4th base part 21d is located in the lower edge 3b side rather than the 3rd base part 21c. Moreover, in the 3rd gather part 27c, the bottom part 25 is located in the upper edge 3a side rather than the lower edge 3b of the mask body 3, and is located in the lower edge 3b side rather than the 4th base part 21d. Further, in the third corrugated portion 27c, the sum of the length in the vertical direction (L) of the mountainside portion S7 and the length in the vertical direction (L) of the mountainside portion S9 is greater than the length in the vertical direction (L) of the mountainside portion S8 Shorter.

Furthermore, the mask body 3 includes a base S10 between the upper end edge 3a and the first base 21a, and a base S11 between the fourth base 21d and the lower end edge 3b. In this way, the accordion-like structure formed by the first gathered portion 27a to the third gathered portion 27c, the base portion S10, and the base portion S11 is the gather structure P of the mask body 3.

The mask body 3, in the state before wearing (not in use), at least a part of the base part S10 and the mountainside part S3, at least a part of the mountainside part S4 and the mountainside part S5, at least a part of the mountainside part S6 and the mountainside part S7, and the mountainside part At least a part of S9 and the base part S11 are folded so as to be overlapped, respectively, and have a flat structure in the thickness direction T. As shown in FIG.

On the other hand, in the wearing state of the mask 1, the mask body 3 is as shown in Figure 4, and the lower end edge 3b of the mask body 3 is stretched downward in the longitudinal direction (L) corresponding to the length of the chin of the wearer, Furthermore, the mask body 3 is deformed into an Ω shape by bulging toward the non-skin opposing surface S2 side. In the present embodiment, in the wearing state of the mask 1, the mountainside portion S8 is the most protruding surface, and is arranged at a position corresponding to the nose tip or mouth of the wearer.

Also in the present invention, the mask body does not necessarily have to have a pleated structure, and even if it is provided with a pleated structure, its structure is not limited to the above-mentioned structure, as long as it is configured to make the mask body face the non-skin facing surface when wearing it. What is necessary is just to swell the side, and the specific structure, such as the number of wrinkles, the direction of a wrinkle, etc., can be changed suitably.

[Cut portion] As shown in FIGS. 1 and 2 , in this embodiment, each of both side edge portions 3c and 3c of the mask body 3 has a notch portion 15 at a position lower than the longitudinal center axis _CL . . The notch portion 15 has a shape that is concave toward the central portion of the lateral direction (C) of the mask body 3, more specifically, has a gradual inward direction from the side edge portions 3c, 3c toward the lateral direction (C). A narrowed, roughly V-shaped shape. The mask body 3, by having the notch portion 15, during the use of the mouth mask 1, the notch portion 15 easily becomes the starting point of the deformation induction of each of the side edge portions 3c, 3c, so the aforementioned side edge portions 3c, 3c can each be The adhesion to the face of the wearer is improved, and the adhesion of the mask body 3 to the face can be improved.

In each of the both side edge portions 3c and 3c 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 demarcated on each of the two side edges 3c and 3c: a notch forming area 17 with a notch 15 formed, and a notch non-forming area 19 where the notch 15 is not formed.

Moreover, the notch part of this invention is not limited to the said structure, Various well-known shapes, such as a single or plural linear shape, a curved shape, etc., may be sufficient. In addition, the notch part of the present invention may be formed by cutting only the base sheet, and when the base sheet is composed of a plurality of sheets, the sheets constituting the base sheet may be cut from each other. and crimping to form.

[Side sheet, embossed portion, folded portion] As shown in Figures 1 and 2, in this embodiment, the mask body 3 is attached to both side edge portions 3c, 3c, respectively, with: covering both side edge portions 3c, 3c The side sheets 13 of each of the skin-facing surface S1 and the non-skin-facing surface S2. The side sheets 13 are arranged so as to sandwich the side edges 3c, 3c of the base sheet 7 of the mask body 3 having a double-layer structure composed of the cellulose cloth 9 and the synthetic fiber cloth 11, respectively. And the side edge sheet of the present invention is not limited to the above-mentioned structure, as long as the notch part is covered from the non-skin-opposing surface side and the skin-opposing surface side by the notch part forming area on each of the at least both side edges of the mask body. It can be made of fabric.

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

In the present embodiment, the mask body 3 is provided with embossed portions 29 (also referred to as "side edge portion embossed portions" in the present invention) extending along the longitudinal direction (L) on both side edge portions 3c and 3c, respectively. ). More specifically, in the notch non-formation region 19, the base material sheet 7 constituting the mask body 3, that is, the cellulose cloth 9 and the synthetic fiber cloth 11, and the side sheet 13 are embossed toward the thickness direction T. Thereby, the embossed portion 29 is formed. Although the embossing part 29 of this embodiment is arrange|positioned in 2 rows on both side edge parts 3c and 3c, respectively, this invention is not limited to this structure, It may be formed in 1 row or 3 rows or more.

In addition, in this embodiment, the mask main body 3 does not have the embossing part 29 in the notch part formation area|region 17 of each side edge part 3c, 3c.

In the present embodiment, the rigidity of the notch portion forming region 17 of each of the side edge portions 3c and 3c is lower than the rigidity of the notch portion non-forming region 19 of each of the side edge portions 3c and 3c. In addition, the rigidity value of each of the notch-formed area and the notch-non-formed area of the edges on both sides is not particularly limited. The rigidity value can be obtained by a flexural rigidity test, that is, a predetermined size is cut from the sheet material of the measurement object. (for example, 100 mm×10 mm) of the test piece, the deflection of each direction of the test piece (that is, the direction corresponding to the longitudinal direction of the measurement object member) at the position corresponding to the notch part formation area or the notch part non-formation area The bending rigidity was measured using a bending tester KES FB-2 (manufactured by Kato Technology Co., Ltd.) to obtain a rigidity value.

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

In addition, the first folded portion 31 of the synthetic fiber fabric 11 and the second folded portion 33 of the cellulose fabric 9 are fixed near the lower end edge 3b of the mask body 3 by the embossed portion 35. In addition, the first folded portion of the non-skin-opposing side fabric of the present invention and the second folded portion of the fabric constituting a part of the skin-opposing surface of the mask body can also be fixed with an adhesive such as HMA.

In this embodiment, as shown in FIG. 2, the mask main body 3 further has the auxiliary|assistant embossing part 37 extended along the horizontal direction (C) in the center part of the vertical direction (L). More specifically, in the mountainside portion S6 of the second pleated portion 27b, the portion that does not overlap with the mountainside portion S5 in the state before the mask 1 is worn (unused) is the base material sheet 7, That is, the cellulose fabric 9 and the synthetic fiber fabric 11 are embossed, whereby the auxiliary embossing portion 37 is formed.

[Nose Cover] As shown in FIGS. 2 and 3 , in the present embodiment, the mask body 3 is provided on the skin-facing surface S1 side from the upper end edge 3A along the longitudinal direction from the upper end edge 3A on the skin-facing surface S1 side of the cellulose fabric 9 (L) Extended nose cap portion 39 . When the length of the longitudinal direction (L) of the nose cover part 39 is set as L3, L3 is about 30% of the length of the longitudinal direction (L) of the mask body 3 in the state before the mask 1 is worn (not in use). The nose cover portion 39 has: a fixed end 38 fixed with a hot-melt adhesive on the upper edge portion 3A of the mask body 3, and a free end 40 extending in the lateral direction (C) below the fixed end 38. 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 abutted against the wearer's nose root portion, and the central portion in the lateral direction (C) of the free end 40 is easily Abuts against the tip of the wearer's nose. Moreover, the joining form of the nose cover part of this invention to the upper edge part of the mask body is not limited to the above-mentioned form, and can also be joined by other joining forms such as heat fusion.

The nose cover portion 39 is made of synthetic fiber cloth, and when the wearer wears the mask 1, the nose cover portion 39 abuts against the wearer's nose.

In the present invention, the MIU of the synthetic fiber cloth constituting the nose cover has a numerical value in the range of 0.09~0.20, more preferably 0.09~0.0.18, and particularly preferably 0.09~0.15, which is based on the fact that the wearer can easily feel the nose cover The point of view of easy sliding on the opposite side of the skin of the part. In addition, the MMD of the synthetic fiber fabric constituting the nose cover has a numerical value in the range of 0.005 to 0.015, more preferably 0.005 to 0.012, and particularly preferably 0.005 to 0.010, because the wearer can easily feel the skin facing the nose cover. The point of view of the smoothness of the surface. The MIU and MMD of the synthetic fiber fabric constituting the nose cover of the present invention are lower than the MIU and MMD of the fabric constituting a part of the skin-facing surface of the mask body of the present invention, and therefore are lower than those of the skin constituting the mask body of the present invention. A part of the fabric on the opposite face is less likely to cause a certain degree of irritation and abnormality to the wearer's face, especially the nose.

In this embodiment, the nose cover portion 39 is the same as the synthetic fiber fabric 11 constituting the mask body 3, and is constituted by a spunbond nonwoven fabric using long fibers. As shown in FIG. 5 , on the skin-opposing surface U1 of the nose cap portion 39 , most of the fiber ends of the long fibers do not protrude from the skin-opposing surface U1 in the thickness direction T, and even if they come into contact with the wearer’s skin, they do not. Doubt of causing irritation such as stinging to the wearer. The synthetic fiber fabric constituting the nose cover of the present invention is the same as the non-skin facing side fabric constituting the mask body, and can be made of, for example, a meltblown nonwoven fabric with a basis weight of 10-40 g/m ² , spunbond nonwoven fabric, SMS nonwoven fabric and hot air Among various well-known synthetic fiber nonwoven fabric sheets such as nonwoven fabrics, a material having good air permeability is appropriately selected and formed.

Also, the length of the longitudinal direction of the nose cover part of the present invention is not limited to the above-mentioned length, but is preferably at least 30% of the length of the longitudinal direction of the mask body. In addition, the longitudinal length of the nose cover is preferably 30-80% of the longitudinal length of the mask body, more preferably 30-60% of the longitudinal length of the mask body, and particularly preferably the longitudinal length of the mask body 30~50% of the length of the direction. The lower limit value of the preferable range of the length in the longitudinal direction of the nose cap is determined from the viewpoint that it is easier to suppress the contact between the fabric and the wearer's face, and the upper limit value is based on making it difficult for the nose cap to come into contact with the wearer. It is determined from the viewpoint that the wearer's mouth is not easy to feel abnormal. In addition, the nose cover part of the present invention is preferably the first pleat structure beyond the mask body from the viewpoint that it is easier to suppress the contact between the cloth and the wearer's face, and the abnormal feeling of the wearer's face can be suppressed more reliably. The end portion on the lower edge side of the base portion extends.

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

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

In this specification, the method for measuring the SMD of a fabric is the same as that of MIU and MMD, as described below. After cutting out a test piece of a predetermined size (for example, 100 mm × 10 mm) from the fabric to be measured, the SMD of the test piece in each direction (that is, the directions corresponding to the longitudinal and lateral directions of the fabric to be measured) is rubbed using SMD The SMD of the fabric can be obtained by measuring with a sensor KES SE (manufactured by Kado Technology Co., Ltd.), and calculating the average value in each direction.

[Holding member] As shown in FIGS. 1 to 4, in this embodiment, the mask body 3 is provided on the upper edge 3a side with: a holding member 41 for holding a part of the upper edge 3a in a predetermined shape. The holding member 41 is arranged between the synthetic fiber fabric 11 and the cellulose fabric 9, and is fixed so as not to be displaced by the embossed portion 43 arranged around it.

The holding member of the present invention preferably has a thin plate rectangular shape, and is formed of a flexible thermoplastic resin (eg, plastic). The holding member 41 is configured so that the wearer can easily bend it and once deformed 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 to fit the shape of the nose, the holding member 41 can fit the vicinity of the upper end edge 3a of the mask body 3 to the shape of the wearer's nose. to hold. Thereby, the holding member 41 can suppress the occurrence of a gap between the upper end edge 3a and the wearer's face.

[Ear-hook portion] The ear-hook portion is preferably elastically stretchable, and can be formed of known materials such as non-woven fabric, woven fabric, plastic film, and rubber thread.

Next, the function of the mask 1 of the present embodiment will be described. In the mask 1 of the present embodiment, each of the above-mentioned gather structure P and both side edge portions 3c and 3c uses the embossed portion 29 extending along the longitudinal direction (L) to easily maintain the three-dimensional structure of the mask body 3 during use. shape preservation. In addition, the mask body 3 is provided with notches 15 on both side edges 3c and 3c, respectively, and the notches 15 serve as the starting point of deformation induction, so 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 provided with a nose cover 39 which is arranged to cover the nose of the wearer and is made of a synthetic fiber cloth having predetermined friction characteristics, even if the nose cover 39 comes into contact with the wearer's face The parts of the body, especially the nose part, are not easily irritated. In addition, in the mask 1 of the present embodiment, since the mask body 3 is provided with the nose cover portion 39, it is easy to prevent the cellulose fabric 9 from directly contacting the wearer's face, particularly the nose, MIU or MMD of the cellulose fabric 9. It is taller than the synthetic fiber cloth which comprises the nose cover part 39, and it is easy to cause irritation|stimulation to the wearer's face when it touches the face. Therefore, the mask 1 of this embodiment is easy to suppress the abnormal feeling of a 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 composed of the cellulose fabric 9, the hygroscopicity of the cellulose fibers makes it easy to absorb the wearer's breath in the mask body 3. Wet to let it evaporate, not easy to suffocate. On the other hand, when the cellulose fabric 9 constituting a part of the skin-facing surface S1 of the mask body 3 is composed of a knitted fabric of silk twisted with cellulose-based short fibers such as gauze, the fibers The fiber ends of the plain short fibers tend to protrude from the skin-opposing surface T1 in the thickness direction T, and the fiber ends may come into contact with the wearer's skin and may cause irritation such as stinging to the wearer. However, since the mask body 3 has the nose cover 39 made of synthetic fiber cloth at a predetermined position, it is difficult for the wearer to feel the irritation and abnormality such as tingling. Based on the above description, the mask 1 of the present embodiment can improve the hygroscopicity of the mask 1, and can easily suppress the abnormal feeling of the wearer's face, thereby having an excellent wearing feeling. In addition, the mask 1 of the present embodiment is provided with a holding member 41 on the mask body 3, and at the portion provided with the holding member 41, the mask body 3 and the nose portion of the wearer are particularly easily adhered. In addition, due to the rigidity of the holding member 41, the portion provided with the holding member 41 is likely to rub against the wearer's nose through the skin-facing surface S1 of the mask body 3, and is particularly likely to cause irritation to the wearer. Therefore, by providing the nose cap portion 39 so as to cover the holding member 41 as in the present embodiment, it is easy to more surely suppress the abnormal feeling of the wearer's face.

In addition, in the mask 1 of the present embodiment, the fabric constituting a part of the skin-facing surface S1 of the mask body 3 is made of cellulose fabric, so that it is easy to ensure the hygroscopicity of the mask body more reliably.

In addition, in the mask 1 of the present embodiment, the fibers constituting the cellulose fabric 9 are formed by twisting a plurality of short fibers, and the fiber ends of the short fibers and the short fibers running out of the fiber bundles twisted with the short fibers are formed. The fibers tend to protrude from the skin-opposing surface S1 of the cellulose fabric 9 in the direction in which the wearer's face is located, and tend to cause irritation such as irritation to the wearer's face, particularly the nose. However, in the mask 1 of the present embodiment, since the nose cover portion 39 having the above-mentioned configuration is provided at a predetermined position, even if the mask body 3 is made of cellulose, which is easily irritated to the wearer's face, especially the nose portion due to its texture With the fabric 9, it is easy to suppress the abnormal feeling of the wearer's face and has an excellent wearing feeling.

Further, in the mask 1 of the present embodiment, although a plurality of dot-shaped embossing portions 45 are provided on the aforementioned synthetic fiber fabric constituting the nose cover portion 39, since the mask 1 has an SMD within a predetermined range, the nose cover portion 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 embossing parts 45, it is easy to suppress the fluff of the synthetic fiber fabric constituting the nose cover part 39, and in particular, it is easy to keep the fluff suppressed even after a certain degree of use time. It is easy to suppress the abnormal feeling of the wearer's face. Therefore, the mask 1 of the present embodiment is easy to suppress the abnormal feeling of the wearer's face and has an excellent wearing feeling regardless of the stage of starting use and the stage after a certain amount of time has elapsed from the start of use.

Further, in the mask 1 of the present embodiment, since the nose cover portion 39 and the pleat structure P have the above-described positional relationship, it is easier to suppress the contact between the cellulose fabric 9 and the wearer's face, and it is easier to more surely suppress the wearer's face. Abnormal sense of the department.

In addition, in the mask 1 of the present embodiment, by the pleat structure P and the embossing portion 29 having the above-mentioned constitution, when in use, it is easy to maintain the shape retention of the three-dimensional structure of the mask body 3, and because the mask body 3 has a notch The notch part 15 becomes the starting point of deformation induction, so 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 in the notch portion forming region 17 of each of the edge portions 3c on both sides, and is provided with a notch portion 15 covering the non-skin-opposing surface side S2 and the skin-opposing surface side S1. The side sheet 13 can easily prevent the notch 15 from coming into direct contact with the wearer's face, and the notch-forming region 17 is structured so that the rigidity of the notch-forming region 17 is lower than the rigidity of the notch-non-forming region 19 . Contact with the wearer's face also easily suppresses the abnormal feeling of the wearer's face. Based on the above description, the mask 1 of the present embodiment can improve the adhesion of the mask body 3 to the face during use, and can more reliably suppress the abnormal feeling of the wearer's face.

In addition, in the mask 1 of the present embodiment, since the notch portion forming region 17 does not have an embossed portion, even if the notch portion forming region 17 is in contact with the wearer's face, the mask 1 of the present embodiment is not easy for the wearer. It is easy to suppress the abnormal feeling of the wearer's face more reliably.

Moreover, in the mask 1 of this embodiment, since the cellulose fabric 9 is a woven fabric, it can maintain moisture absorption, and has breathability, and is not easy to become stuffy. Furthermore, in the mask body 3, the synthetic fiber fabrics 11 are fused at the respective notch portions 15 of the edge portions 3c on both sides, so that the synthetic fiber fabrics 11 and the cellulose fabrics 9 are fused in this fused portion, which is easy to suppress the positional deviation of the two fabrics. It is easy to ensure the strength of the mask 1 more reliably, and it is easy to maintain the shape retention of the three-dimensional structure of the mask body 3, so it is easy to more reliably ensure the adhesion of the mask body 3 to the face, and it is easy to more reliably restrain the wearer's The abnormality of the face.

In addition, in the mask 1 of the present embodiment, the cellulose fabric 9 is covered with the synthetic fiber fabric 11 near the lower end edge 3b of the mask body 3, so it is difficult for the cellulose fabric 9 to come into direct contact with the wearer's face near the lower end edge 3b . Therefore, in the mask 1 of the present embodiment, it is easy to more surely suppress the abnormal feeling of the wearer's face.

In addition, the mask 1 of the present embodiment utilizes the second folded portion 33 of the mask body 3 to increase the rigidity near the lower end edge 3b to improve the shape retention of the three-dimensional structure of the mask body 3. Therefore, in the mask 1 of the present embodiment, it is easy to more reliably ensure the adhesion of the mask body 3 to the face, and it is easy to more reliably suppress the abnormal feeling of the wearer's face.

In addition, in the mask 1 of the present embodiment, the auxiliary embossing portion 37 is used to more easily maintain the shape retention of the three-dimensional structure of the mask body 3 . Therefore, in the mask 1 of the present embodiment, it is easy to more reliably ensure the adhesion of the mask body 3 to the face, and it is easy to more reliably suppress the abnormal feeling of the wearer's face.

[Examples] Samples of the masks (1) to (8) of the following Examples 1 to 5 and Comparative Examples 1 to 3 were prepared, and the evaluation tests of the masks (1) to (8) were performed according to the following method.

(Example 1) A mask (1) was produced, and the nose cover part with a longitudinal dimension of 35 mm and a lateral dimension of 148 mm was composed of a spunbond nonwoven fabric A with a basis weight of 25 g/m ² , and the skin-facing surface of the mask body was formed. A part of the fabric is made of gauze a with 90 yarn counts. The MIU of the spunbond nonwoven fabric A facing the skin was 0.17, and the MMD was 0.011.

(Example 2) A mask (2) was produced, and the nose cover part with the same size as that of Example 1 was composed of a spunbond non-woven fabric B with a basis weight of 30 g/m ² , which constituted part of the skin-facing surface of the mask body. The cloth is composed of gauze a with 90 yarns. The MIU of the spunbond non-woven fabric B opposite to the skin was 0.14, and the MMD was 0.008.

(Example 3) A mask (3) was produced, and the nose cover part with the same size as that of Example 1 was composed of a hot air non-woven fabric C with a basis weight of 40 g/m ² , and a fabric that constituted a part of the skin-facing surface of the mask body It is composed of gauze a with 90 yarn counts. The MIU of the surface opposite to the skin of the hot air non-woven fabric C was 0.13, and the MMD was 0.007.

(Example 4) A mask (4) was produced, and the nose cover part with the same size as that of Example 1 was composed of a spunbond nonwoven D with a basis weight of 25 g/m ² , which constituted a part of the skin-facing surface of the mask body. The cloth is composed of gauze a with 90 yarns. The MIU of the spunbond nonwoven D on the opposite side of the skin was 0.14, and the MMD was 0.012.

(Example 5) A mask (5) was produced, and the nose cover part with the same size as that of Example 1 was composed of a spunbond non-woven fabric E with a basis weight of 23 g/m ² , which constituted a part of the skin-facing surface of the mask body. The cloth is composed of gauze a with 90 yarns. The MIU of the spunbond nonwoven fabric E opposite to the skin was 0.15, and the MMD was 0.010.

(Comparative Example 1) A mask (6) was produced, and the fabric on the skin-opposing surface of the mask body was composed of gauze a with 90 yarn counts, and did not have a nose cover. The MIU of the skin opposite to the gauze a is 0.14, and the MMD is 0.020.

(Comparative Example 2) A mask (7) was produced, and the fabric on the skin-opposing surface of the mask body was made of gauze b with 80 yarn counts, and did not have a nose cover. The MIU of the skin opposite to the gauze b is 0.20, and the MMD is 0.025.

(Comparative Example 3) A mask (8) was produced, and the fabric constituting the skin-opposing face of the mask body was made of a spunbond nonwoven fabric F with a basis weight of 20 g/m ² and did not have a nose cover. The MIU of the spunbond nonwoven fabric F opposite to the skin was 0.24, and the MMD was 0.009.

(Evaluation test method) Each of the masks (1) to (8) was put on by 20 subjects for 5 minutes, and it was evaluated whether irritation or abnormality was felt on the face, especially the nose. The evaluation criteria of masks (1) to (8) are as follows. ○: 0 to 4 subjects answered that they felt irritation and abnormality on the face, especially the nose. △: 5 to 12 subjects responded that they felt irritation and abnormality on the face, especially the nose. ×: 13 to 20 subjects answered that they felt irritation and abnormality on the face, especially the nose.

Table 1 below shows the MIU and MMD of the face masks (1) to (8) facing the skin of the cloth that is in contact with the wearer's nose, as well as the evaluation test results.

Moreover, the mask of the present invention is not limited to the above-described embodiments and exemplary descriptions, and can be appropriately combined, changed, and the like within the scope of not departing from the purpose and gist of the present invention. In addition, in the present invention, the ordinal numbers such as "first" and "second" are used to distinguish the items to which the ordinal numbers are attached, and do not indicate the order, priority, importance, etc. of the items.

1‧‧‧Mask 3‧‧‧Mask body 3a‧‧‧Upper edge 3A‧‧‧Upper edge 3b‧‧‧Lower edge 3c‧‧‧Side edge 5‧‧‧Ear loop 7‧‧‧Substrate Sheet 9‧‧‧Cellulose cloth 11‧‧‧Synthetic fiber cloth 13‧‧‧Side edge sheet 15‧‧‧Notched part 17‧‧‧Notched part forming area 19‧‧‧Notching part non-forming area 21a‧‧‧Part 1 base 21b‧‧‧2nd base 21c‧‧‧3rd base 21d‧‧‧4th base 23a‧‧1st top 23b‧‧‧2nd top 23c‧‧‧3rd top 25‧‧bottom 27a ‧‧‧First pleated part 27b‧‧‧Second pleated part 27c‧‧ Third pleated part 29‧‧‧Embossed part 31‧‧‧First folding part 33‧‧‧Second folding part Part 35‧‧‧Embossed part 37‧‧‧Auxiliary embossing part 38‧‧‧Fixed end 39‧‧‧Nose cover part 40‧‧‧Free end 41‧‧‧Retaining member 43‧‧‧Embossed part 45‧ ‧‧Point-shaped embossing part S1‧‧‧Skin facing surface S2‧‧‧Non-skin facing surface S3~S9‧‧‧Mountain side P‧‧‧Pleated structure L1‧‧‧First folded part 31 Length L2 in the longitudinal direction (L) Length in the longitudinal direction (L) of the second inflection portion 33 L3 Length in the longitudinal direction ( _L ) in the nose cap portion 39 CL ‧‧‧Central axis in the longitudinal direction

Fig. 1 is a plan view when the mask 1 according to the 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-opposing surface S1 side.

FIG. 3 is a cross-sectional view taken along line III-III of FIG. 1 .

FIG. 4 is an electron microscope photograph (magnification of 50 times) when the skin opposing surface of the cellulose fabric 9 is observed from the side.

FIG. 5 is an electron microscope photograph (magnification of 50 times) when the skin-opposing surface of the nasal cover 39 is observed from the side.

FIG. 6 is an electron microscope photograph (magnification of 20 times) when the skin-opposing surface of the nose cover portion 39 is viewed from above.

FIG. 7 is a schematic diagram showing the wearing state of the mask 1 according to the embodiment of the present invention.

1‧‧‧Mask

3‧‧‧Mask body

3a‧‧‧Upper edge

3A‧‧‧Top edge

3b‧‧‧Lower edge

3c‧‧‧Side edge

5‧‧‧Ear Hook

13‧‧‧Side flakes

15‧‧‧Notch

17‧‧‧Notch formation area

19‧‧‧Non-formed area of notch

29‧‧‧Embossing part

35‧‧‧Embossed part

39‧‧‧Nose cover

41‧‧‧Maintaining member

43‧‧‧Embossed part

S2‧‧‧Non-Skin Opposite

C _L ‧‧‧Central axis in longitudinal direction

Claims (11)

A mouth mask is provided with: a mouth mask body with a longitudinal direction and a horizontal direction, and ear hooks respectively extending from both side edges of the aforementioned mouth mask body extending along the aforementioned longitudinal direction, wherein the aforementioned mouth mask body is A skin-opposing surface and a non-skin-opposing surface located on the opposite side are provided, and a skin-opposing surface side fabric constituting a part of the skin-opposing surface is provided, and the mask system has the following: The upper end edge extending along the aforementioned lateral direction extends toward the aforementioned longitudinal direction and is made of a synthetic fiber cloth. (Variation of the average friction coefficient) is 0.005 to 0.015, and the MIU of the skin-opposing side of the fabric on the skin-opposing side is greater than 0.20, or the MMD is greater than 0.015. The mask according to claim 1, wherein the fabric on the skin-opposing surface side is a cellulose fabric. The mask according to claim 1 or 2, wherein the fibers constituting the fabric on the skin-opposing surface side are formed by twisting a plurality of short fibers. The mask as described in claim 1 or 2, wherein, The synthetic fiber fabric has a plurality of dot-shaped embossed portions, the total area of the plurality of dot-shaped embossed portions is 15 to 30% of the area of the synthetic fiber fabric, and the SMD (surface roughness) of the synthetic fiber fabric is 2.0 ~4.5μm. The mask according to claim 1 or 2, wherein the mask body system has: a pleated structure for bulging toward the non-skin-opposite side during use, and the pleated structure is provided with: respectively constituting the mask body. The first base portion and the second base portion of the upper end edge portion and the lower end edge portion, and the corrugated portion located therebetween, in the longitudinal direction, the nose cover portion is beyond the lower end edge side of the first base portion. extending from the end. The mask according to claim 1 or 2, wherein the mask body is provided on the edge portions of the two sides respectively with: a notch forming area formed with a notch that is recessed toward the central portion of the lateral direction, and a notch that is not formed The notch part non-formation area of the notch part, the mask body, at least in the notch part forming area of each of the two side edges has: covering the notch part from the non-skin-opposing surface side and the skin-opposing surface side. The side sheet, the mask body, is attached to the non-formed area of the notch portion of each of the side edges, and has: a side edge embossed portion extending along the longitudinal direction, and the notch portion of each of the side edges is formed. The rigidity of the area, is The rigidity is lower than that of the non-formed region of each of the two side edge portions. The mask according to claim 6, wherein the mask body does not have the side edge embossed portion in the notch portion forming region of each of the side edge portions. The mask according to claim 6, wherein the mask body has a laminated structure in which the non-skin-opposing side fabric is disposed on the non-skin-opposing surface side of the skin-opposing surface side fabric, and the skin The opposite side fabric is a fabric, the aforementioned non-skin facing side fabric is made of synthetic fiber fabric, the aforementioned mask body, in the aforementioned notch portion of each of the aforementioned side edges, the aforementioned non-skin facing side fabric is fused. . The mask according to claim 8, wherein the non-skin-opposing side fabric has: a first folded edge that is folded toward the skin-opposing side at the lower end edge extending in the lateral direction of the mask body The first folded portion is a fabric covering the skin-opposing surface side. The mask according to claim 9, wherein the fabric system on the skin-opposing surface side has: In the second folded portion that is folded on the skin-opposing surface side, the length of the longitudinal direction of the first folded portion is longer than the length of the longitudinal direction of the second folded portion. The mask according to claim 1 or 2, wherein the mask body has an auxiliary embossing portion extending along at least a part of the horizontal direction at the center portion in the longitudinal direction.

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