JP2021172890A - Pleated fabric mask - Google Patents

Abstract

To provide a pleated fabric mask which has high shape retention of pleats of a mask body to the same degree as a pleated non-woven mask despite the fabric mask, is hard to lose a shape even when reused after washing, and does not damage a function of the pleated mask in which the mask body deforms three-dimensionally according to the shape of the face.SOLUTION: A mask body in which a rear woven fabric 15 becoming an adhesive core of a front woven fabric 14 is bonded to a whole rear side of the front woven fabric 14 is adopted as a mask body 12. Thus, shape retention of pleats 11 is high despite the fabric mask and a shape is hard to be loosed even when reused after washing. The fabric mask cannot be distinguished from a pleated non-woven mask at a first glance, and the mask body 12 can three-dimensionally be deformed according to the shape of the face even when a mask 10 is used.SELECTED DRAWING: Figure 1

Description

The present invention relates to a pleated cloth mask in which a pair of left and right hanging strings are arranged on a pleated and woven mask body.

In 2020, the pandamic of the new global coronavirus infection "COVID-19" will occur, and a mask as an infection control device, especially under the jaw, can be covered, and it is inexpensive and has a virus catching property. There is a shortage of expensive pleated non-woven masks.
Therefore, although it is inferior to the pleated non-woven fabric mask in terms of price and function, "pleated cloth mask" such as Patent Document 1 has recently attracted attention.

This pleated cloth mask has a mask body in which a plurality of cotton fabric gauze (woven cloth) are stacked, and a pair of left and right hanging strings connected to both ends in the width direction of the mask body. A plurality of pleats (folds) extending in the width direction are formed.
When wearing the mask, hook each strap on both ears, expand each pleated up and down, and cover the area from the base of the nose to the bottom of the chin three-dimensionally with the mask body.

Utility Model Registration No. 3191982

However, in the pleated cloth mask of Patent Document 1, a plurality of pleats are formed by repeating inward and outward folding on a mask body in which a plurality of soft pieces of gauze are simply superposed.
Therefore, the shape retention of each pleat is low, and the pleats lack sharpness as compared with a general pleated non-woven fabric mask made of non-woven fabric. In particular, when the used mask was washed and reused, the settling of the mask body including the pleats increased.
As a result, although this Patent Document 1 is a pleated mask that has become mainstream in recent years, it can be seen that it is a gauze mask that is inferior in functionality and does not look good at first glance.

Further, since the mask of Patent Document 1 has such low pleated shape retention, the mask body is out of shape at the time of wearing. As a result, the mask body could not be three-dimensionally deformed to match the shape of the face when worn, which is the greatest advantage of the pleated mask.

Therefore, as a result of diligent research, the inventor has solved all the above-mentioned problems by adopting a mask body in which the back side woven cloth, which is the adhesive core of the front side woven cloth, is bonded to the back side of the front side woven cloth. Knowing that, the present invention was completed.
In addition, among the conventional pleated non-woven fabric masks, there are those in which the mask body is a multi-layer type. However, in this type of conventional product, since the mask body is a non-woven fabric, it is not necessary to improve the shape retention again, and after simply superimposing each non-woven fabric, only the outer peripheral portions thereof are heat-sealed (mask). Most of the parts are laminated (in a separated state). That is, this conventional product is not a product in which the back side woven fabric serving as an interlining is bonded to the entire surface of the front side woven fabric as in the present invention.

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The present invention has been made in view of such a problem, and in order to improve the shortage of the pleated non-woven mask due to the pandemic of the new coronavirus worldwide, the pleated non-woven mask is used in spite of the cloth mask. To the same extent, the shape retention of the pleats of the mask body is high, it does not easily lose its shape even if it is reused repeatedly after washing with water, and when worn, the mask body is three-dimensionally deformed according to the shape of the face. The purpose is to provide a pleated cloth mask that does not impair the functions peculiar to the pleated mask.

The invention according to claim 1 includes a mask main body made of woven fabric in which a plurality of pleats extending in the width direction are formed, and a pair of left and right hanging strings connected to both ends in the width direction of the mask main body. In the pleated cloth mask, the mask body is a pleated cloth mask in which the back side woven cloth, which is the adhesive core of the front side woven cloth, is bonded to the entire back surface of the front side woven cloth. ..

The "pleated cloth mask" referred to here is a mask body made of woven cloth in which a plurality of horizontally long pleats are formed and can be reused by washing with water or the like.
The size of the mask body is not limited. The size for adults (adult men), the size for women, the size for children, etc. are optional.
The front side woven fabric is a woven fabric arranged on the front side of the mask body.
As the material of the front side woven fabric (the same applies to the backing woven fabric), various natural cellulose fibers such as cotton, hemp, wool, and pulp can be adopted. In addition, various regenerated cellulose fibers such as rayon, polynosic, and cupra (registered trademark) may be used. The front side woven fabric and the back side woven fabric may be made of the same material or different materials.

The back side woven fabric is a woven fabric that is arranged on the back side of the mask body and has an adhesive component at least on the surface (bonded surface with the front side woven fabric).
The type of adhesive component is not limited. For example, various thermoplastics such as ethylene vinyl acetate (EVA), which become an adhesive by heating and melting, can be adopted. Specifically, for example, the fibers of the backing woven fabric may have a core-sheath structure, and a thermoplastic plastic may be used as the core material.

As a matter of course, the front side woven fabric and the back side woven fabric bonded by the adhesive component must have breathability as a mask body.
The material of the strap is arbitrary. For example, a rubber cord or the like can be adopted.
Various length adjusting members for adjusting the length of the string (the length of the annular portion of the string) may be attached to the hanging string according to the face size of the wearer.

In the invention according to claim 2, a backing woven fabric is attached to the back side of the mask body in a state where only the outer peripheral portions of each other are joined, and the backing woven fabric extends in the width direction. The pleated cloth mask according to claim 1, wherein an exhalation pocket portion for temporarily storing exhaled air is formed in front of the mouth and nose so as to be foldable.

The backing woven fabric is a woven fabric backing cloth arranged on the back side (the side surface in contact with the face) of the mask body.
The material of the backing woven fabric is not limited. For example, organic cotton that is gentle on the skin can be mentioned.
The backing woven fabric may be composed of only one woven fabric, or may be a stack of a plurality of woven fabrics.
The structure of the exhalation pocket is arbitrary. For example, the backing woven fabric may be folded into a predetermined bag shape to form an expiratory pocket portion. Further, the exhaled breath pocket portion may be formed so as to be foldable separately from the backing woven fabric, and then attached to the inside of the backing woven fabric.

According to the third aspect of the present invention, each of the pleats has an outer bent portion and an inner bent portion extending in the width direction of the mask body, and only the inner bent portion is sewn over the entire length. The pleated cloth mask according to claim 1 or 2, wherein the pleated cloth mask is reinforced by wearing.

In each pleated, only the inner bent portion of the inner and outer bent portions is reinforced by sewing. The reason is that if the outer bent portion is sewn, when the mask is attached, elongated ridges extending in the width direction will appear at the outer tip of each pleat, and these are the pleats. While there is a risk of hindering the vertical deployment, the design of the pleated mask is also reduced.
The sewing may be, for example, sewing machine sewing (machine sewing) or hand sewing.
The number of stitches at the inner bent portion of each pleat may be one or two or more.

According to the first aspect of the present invention, when the mask is worn, the straps are hooked on both ears, and the pleats are expanded up and down to three-dimensionally cover the area from the base of the nose to the bottom of the chin. Cover with.
At this time, as the main body of the mask with pleats, the back side woven cloth, which is the adhesive core of the front side woven cloth, is attached to the entire back surface of the front side woven cloth. The shape retention of pleats is as high as that. Also, when the used mask is washed with water and reused, it does not easily lose its shape. This makes it almost indistinguishable from a pleated non-woven mask at first glance.

Furthermore, since the pleats of the mask body have high shape retention, the mask body can be three-dimensionally deformed according to the shape of the face when the mask is worn, regardless of the number of times the mask is used. As a result, the suffocation that occurs when the mask body is in close contact with the wearer's mouth when the mask is worn is eliminated, and a gap through which outside air enters is unlikely to appear between the outer peripheral portion of the mask body and the face.

According to the invention of claim 2, since the backing woven fabric is attached to the back side of the backside woven fabric with only the outer peripheral portions of each other joined, the backing is applied at the same time as the pleats are unfolded when the mask is attached. The mouth of the exhalation pocket that was folded of the woven cloth opens. As a result, the exhalation pocket portion appears in the inner space of the three-dimensionally deformed mask body and covers the wearer's mouth and nose (outer nostril).
As a result, for example, droplets and aerosols contained in the wearer's exhaled breath and cough are temporarily stored in the bag-shaped exhaled breath pocket portion, so that the risk of infection due to the droplets and the like can be suppressed.

According to the invention of claim 3, only the inner bent portion of each pleat is sewn over the entire length. Therefore, when the mask is attached, particularly when the mask is reused, the shape of each pleated in the unfolded state can be further suppressed.

It is a perspective view of the wearing state including the enlarged view of the main part of the pleated cloth mask which concerns on Example 1 of this invention. It is a front view which includes the partially broken view of the pleated cloth mask which concerns on Example 1 of this invention. It is a back view which includes the partially broken view of the pleated cloth mask which concerns on Example 1 of this invention. It is an enlarged vertical sectional view including a partially enlarged view of the wearing state of the pleated cloth mask which concerns on Example 1 of this invention. (A) to (C) are flow sheets showing a method for manufacturing a pleated cloth mask according to Example 1 of the present invention.

Hereinafter, examples of the present invention will be specifically described with reference to the drawings.

In FIG. 1, reference numeral 10 denotes a pleated cloth mask according to the first embodiment of the present invention. In this pleated cloth mask 10, four pleats 11 extending in the width direction are formed, and the mask body 12 is made of woven cloth. The mask body 12 is provided with a pair of left and right hanging strings 13 connected to both ends in the width direction.

Hereinafter, these components will be specifically described.
As shown in FIGS. 1 and 2, the mask main body 12 is formed by laminating the back side woven cloth 15 which is the adhesive interlining of the front side woven cloth 14 on the entire back surface of the front side woven cloth 14. Of these, hemp woven fabric, which is a natural antibacterial sheet having higher breathability than cotton, is used for the front woven fabric 14. On the other hand, a cotton woven fabric is used for the back side woven fabric 15.

Hot melt (ethylene vinyl acetate) 16 is thinly coated on the surface of the back side woven fabric 15 (the surface on the front side woven fabric 14 side) (see the enlarged view of the main part in FIG. 1).
The four pleats 11 of the mask body 12 each have an outer bent portion 11a and an inner bent portion 11b extending in the width direction of the mask body 12. Of these, only each of the inner bent portions 11b is reinforced by sewing with the sewing thread Y1 over the entire length (see the partial fracture view of FIG. 1).
Further, in the upper side portion of the mask body 12, a nose wire 17 is embedded in substantially the entire length direction of the mask body 12 so that the upper end portion of the mask body 12 is brought into close contact with the nose root to prevent a gap when the mask is worn. ing.

On the back side of the mask main body 12, a backing woven fabric 18 made of organic cotton, which is gentle on the skin, is attached in a state where only the outer peripheral portions of each other are sewn together (see FIG. 3). The backing woven cloth 18 is a thin cloth, and a cotton woven cloth lining 19 is sewn on the back surface thereof at a predetermined pitch in the width direction.
Further, in the backing woven cloth 18, an exhalation pocket portion 20 extending in the width direction and temporarily storing exhaled air in front of the mouth and nose is formed by folding the backing woven cloth 18 into a predetermined shape. (See FIGS. 1 and 3).

The pair of left and right hanging strings 13 are each made of a rubber string. The corresponding ends of each hanging string 13 are sewn to the upper and lower corners of the mask body 12 in the width direction.
Each hanging string 13 has a short string length adjusting ring 21 made of a soft synthetic resin, which is folded in half so that the length of the string (the length of the annular portion of the string) can be adjusted. Each is slidably fitted to the tip. When the mask is attached, each string length adjusting ring 21 is slid in the length direction of the corresponding hanging string 13 so that the outer peripheral portion of the mask body 12 is in close contact with the face.

Next, a method for manufacturing the pleated cloth mask 10 of the first embodiment will be described with reference to the flow sheets A to C of FIGS. 1 to 4 and 5.
In the pleated cloth mask 10, the mask main body 12 and the backing woven cloth 18 are formed in advance, and then a pair of left and right hanging strings 13 are arranged at both ends of the mask main body 12 in the width direction. It is manufactured by sewing the mask main body 12 and the backing woven cloth 18 together with each other's outer peripheral portions.

First, the process of forming the mask body 12 will be described with reference to the flow sheet (A).
(A1) Hot melt 16 in which a vertically long rectangular front woven fabric 14 and a back woven fabric 15 of the same size are applied to the entire surface of the back woven fabric 15 (the surface on the front woven fabric 14 side). (See the enlarged cross-sectional view of the main part of FIG. 1) to form the mask body 12 (see FIG. 2). At this time, the nose wire 17 is embedded in the upper side portion of the mask main body 12 in a state of being sandwiched by two sewing threads Y4, which will be described later, in substantially the entire area in the length direction thereof.

(A2) After that, in the middle portion in the length direction (vertical direction) of the mask main body 12, the position corresponding to the inner bending portion 11b of each pleats 11 is sewn in the width direction (horizontal direction) of the mask main body 12, respectively. Machine sewing (sewing) is performed by thread Y1 (see FIGS. 1, 2 and 4). As a result, the inner bent portion 11b of each pleated 11 is reinforced.
(A3) Next, in the middle part of the mask body 12, ironing is performed by repeating inward and outward folding at predetermined intervals. As a result, four pleats 11 having an outer bent portion 11a and an inner bent portion 11b extending in the width direction of the mask main body 12 are formed in the middle portion of the mask main body 12, respectively (main part of FIG. 1). See enlarged cross section and FIG. 2).

Next, the process of forming the backing woven fabric 18 will be described with reference to the flow sheet (B).
(B1) First, as shown in FIGS. 3 and 4, a vertically long rectangular backing woven fabric 18 having the same size and a lining 19 thereof are overlapped with each other, and parallel or latticed using fine threads (not shown). Sew the sewing machine into a shape.
(B2) After that, of the upper and lower parts of the backing woven fabric 18, the positions corresponding to the outer bent portion 22a of the upper expiratory pleats 22 and the outer bent portion 23a of the lower expiratory pleats 23, which will be described later, are respectively positioned as the mask main body. Machine sewing is performed with the sewing thread Y2 in the width direction of 12. As a result, the outer bent portions 22a and 23a of the upper and lower expiratory pleats 22 and 23 are reinforced, respectively.
Although not shown, the number of upper and lower expiratory pleats 22 and 23 formed may be plural. In this case, when the mask is worn, the two upper and lower expiratory pleats 22 and 23 are opened together, so that one large expiratory pocket portion 20 appears.

(B3) Next, the upper part of the rectangular backing woven fabric 18 is bent in a Z shape to form the upper expiratory pleats 22 (see FIG. 4). On the other hand, the lower portion of the backing woven fabric 18 is bent in a Z shape to form the lower expiratory pleats 23. At this time, the outer bent portions 22a and 23a of the upper and lower expiratory pleats 22 and 23 are abutted at an intermediate position in the length direction (longitudinal direction) of the backing woven fabric 18.
(B4) After that, the vicinity of both ends of the upper and lower expiratory pleats 22 and 23 in the width direction are sewn with the sewing thread Y3 in the length direction (longitudinal direction) of the mask body 12 and ironed. As a result, a bag-shaped exhalation pocket portion 20 is formed in a folded state in the middle portion in the length direction of the backing woven fabric 18.

Next, the stitching process of the mask main body 12 and the backing woven fabric 18 will be described with reference to the flow sheet (C).
(C1) First, the mask main body 12 and the backing woven fabric 18 are superposed on the front side woven fabric 14 and the backing woven fabric 18 on the inside and outside. That is, the exhalation pocket portion 20 is arranged face down.
(C2) After that, of the upper, lower, left and right side portions of the overlapped mask main body 12 and the backing woven fabric (laminated body) 18, the portions excluding the lower edge portion are sewn with a sewing machine (not shown). At this time, at the corresponding upper and lower corners of the mask main body 12, the base end portions of the left and right hanging cords 13 are inserted between the mask main body 12 and the backing woven cloth 18 and sewn (FIG. 2). See).

(C3) Next, the mask body 12 with the backing woven fabric 18 is pulled out through the lower side portion in the unsewn state. As a result, the mask body 12 and the backing woven fabric 18 are turned over to form the outer front side, and the front side of the front side woven fabric 14 and the front side of the backing woven fabric 18 in which the opening of the exhalation pocket portion 20 is arranged are exposed. (See FIGS. 2 and 3).
(C4) Finally, the upper, lower, left and right sides of the mask body 12 with the backing woven fabric 18 are lock-stitched with the sewing thread Y4.
Through the above steps, the pleated cloth mask 10 is completed.

Next, a method of using the pleated cloth mask 10 will be described with reference to FIGS. 1 and 4.
As shown in FIGS. 1 and 4, when the mask is worn, the straps 13 are hooked on both ears, the pleats 11 are expanded vertically, and the nose wire 17 is also used, while the mask body 12 is used to three-dimensionally display the face. Cover the area from the base of the nose to the bottom of the chin without any gaps. At this time, the upper and lower expiratory pleats 22 and 23 of the backing woven fabric 18 are also expanded up and down. As a result, a bag-shaped exhalation pocket portion 20 appears in the middle portion in the length direction of the backing woven fabric 18 and covers the wearer's mouth and nose from the front. In this state, the pleated cloth mask 10 is used.

As described above, as the mask main body 12 with the pleats 11, the back side woven cloth 15 which is the adhesive core of the front side woven cloth 14 is attached to the entire back surface of the front side woven cloth 14, and therefore, regardless of the cloth mask. The shape retention of the pleats 11 is enhanced to the same extent as that of the pleated non-woven fabric mask. As a result, even when the used pleated cloth mask 10 is reused after washing with water, it does not easily lose its shape. Moreover, at first glance, the pleated cloth mask 10 is almost indistinguishable from the pleated non-woven mask.

Further, since the pleats 11 of the mask body 12 have high shape retention, the mask body 12 can be three-dimensionally deformed according to the shape of the face when worn, regardless of the number of times the pleated cloth mask 10 is used. As a result, when the mask is worn, the suffocation caused by the mask body 12 coming into close contact with the wearer's mouth is eliminated, and a gap through which outside air enters is unlikely to occur between the outer peripheral portion of the mask body 12 and the face.
Further, here, the backing woven fabric 18 is sewn on the back surface of the backside woven fabric 15 in a state where only the outer peripheral portions of each other are joined. Therefore, as described above, when the mask is attached, the upper and lower expiratory pleats 22 and 23 of the backing woven fabric 18 are also expanded vertically at the same time as the expansion of the pleats 11. As a result, the exhalation pocket portion 20 separately appears in the inner space of the three-dimensionally deformed mask body 12, and can cover the wearer's mouth and nose (external nostrils).

As a result, droplets and aerosols contained in the wearer's exhaled breath and cough are temporarily stored in the bag-shaped exhaled breath pocket portion 20. As a result, the risk of infection due to droplets or the like can be suppressed.
The backing woven fabric 18 and the mask body 12 are sewn only at the outer peripheral portions of each other. Therefore, most of the portion of the backing woven fabric 18 except the outer peripheral portion can be moved in the front-rear direction, and the exhalation pocket portion 20 can be greatly expanded in the inner space of the mask body 12, so that the exhalation pocket portion 20 makes it difficult to breathe. It will be resolved.

Further, here, only the inner bent portion 11b of each pleated 11 and the outer bent portions 22a and 23a of the upper and lower expiratory pleats 22 and 23 are sewn with a sewing machine over the entire length in the width direction. Therefore, when the mask is attached, especially when the mask is reused, the shape of each pleated 11 in the unfolded state can be further suppressed.
In addition, among the conventional pleated non-woven fabric masks, there are those in which the mask body is a multi-layer type. However, in this type of conventional product, since the mask body is a non-woven fabric, it is not necessary to improve the shape retention again, and after simply superimposing each non-woven fabric, only the outer peripheral portions thereof are heat-sealed (mask). The central part of the above is a laminated body (in a separated state). That is, unlike the pleated cloth mask 10 of Example 1, this conventional product does not have the back side woven cloth 15 as an interlining bonded to the entire surface of the front side woven cloth 14.

The present invention is useful as a technique for a pleated cloth mask in which a pair of left and right hanging strings are arranged on a pleated and woven mask body.

10 Pleated cloth mask 11 Pleated cloth 11a Outer bending part 11b Inner bending part 12 Mask body 13 Hanging string 14 Front side woven cloth 15 Back side woven cloth 18 Backing woven cloth 20 Expiratory pocket part

The invention according to claim 1 includes a mask main body made of woven fabric in which a plurality of pleats extending in the width direction are formed, and a pair of left and right hanging strings connected to both ends in the width direction of the mask main body. In the pleated cloth mask, the mask body is formed by laminating the back side woven cloth, which is the adhesive core of the front side woven cloth, on the entire back surface of the front side woven cloth, and backing the back side of the mask body. The woven fabric is attached with only the outer peripheral portions of each other joined, and the backing woven fabric has an exhalation pocket portion that extends in the width direction and temporarily stores exhaled air in front of the mouth and nose so as to be foldable. It is a pleated cloth mask characterized by being made.

According to the second aspect of the present invention, each of the pleats has an outer bent portion and an inner bent portion extending in the width direction of the mask body, and only the inner bent portion is sewn over the entire length. The pleated cloth mask according to claim 1 , wherein the pleated cloth mask is reinforced by wearing.

Also, since the backing woven fabric was attached to the back side of the backing woven fabric with only the outer periphery of each other joined, the exhalation pocket of the backing woven fabric was folded at the same time as each pleated was unfolded when the mask was attached. The mouth of the club opens. As a result, the exhalation pocket portion appears in the inner space of the three-dimensionally deformed mask body and covers the wearer's mouth and nose (outer nostril).
As a result, for example, droplets and aerosols contained in the wearer's exhaled breath and cough are temporarily stored in the bag-shaped exhaled breath pocket portion, so that the risk of infection due to the droplets and the like can be suppressed.

According to the invention of claim 2 , only the inner bent portion of each pleated is sewn over the entire length. Therefore, when the mask is attached, particularly when the mask is reused, the shape of each pleated in the unfolded state can be further suppressed.

Claims (3)

In a pleated cloth mask in which a plurality of pleats extending in the width direction are formed, and a mask body made of woven cloth and a pair of left and right hanging strings connected to both ends of the mask body in the width direction are provided.
The mask body is a pleated cloth mask characterized in that the back side woven cloth serving as an interlining of the front side woven cloth is bonded to the entire back surface of the front side woven cloth. A backing woven fabric is attached to the back side of the mask body in a state where only the outer peripheral portions of each other are joined.
The pleated cloth mask according to claim 1, wherein an exhalation pocket portion extending in the width direction and temporarily storing exhaled air is formed in the backing woven fabric so as to be foldable. .. Each of the pleats has an outer bent portion and an inner bent portion extending in the width direction of the mask body, respectively.
The pleated cloth mask according to claim 1 or 2, wherein only each of the inner bent portions is reinforced by sewing over the entire length.

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