JP5068129B2 - mask - Google Patents

Description

  The present invention relates to a technique for constructing a mask to be worn on a wearer's face.

Conventionally, for example, Patent Document 1 below discloses a mask that covers a wearer's mouth and nose, particularly a three-dimensional mask. This three-dimensional mask is formed into a three-dimensional shape when the mask is worn, thereby forming a mouth space between the mask main body and the wearer's mouth, so that discomfort such as breathlessness can be eliminated. By the way, when designing and developing this type of mask, it is important to improve the fit to the wearer. As a precondition, the wearer's face size and shape, etc., and the wear when handling the mask are important. It is necessary to fully consider the characteristics of the person. For example, when a general adult mask is applied to a wearer such as a person with a short nose and high cheeks or a person with a low ear position, the mask will be displaced from the proper wearing position when wearing the mask. Or a phenomenon that the wearer's mouth space cannot be secured is assumed, and the original function of the mask cannot be achieved. In addition, for example, when providing a mask for a child or a small-faced person, simply reducing the size of a general adult mask to a similar size and reducing the size of the wearer's face is sufficient. There is a limit to reflect it.
JP 7-275384 A

  Then, this invention is made | formed in view of this point, and makes it a subject to provide the mask which fits a wearer's face comprehensively.

  In order to achieve the above object, the invention described in each claim is configured.

  The mask which concerns on this invention is a mask with which a wearer's face is mounted | worn, Comprising: A mask main-body part, a left ear hook part, and a right ear hook part are provided at least. The “mask” herein may be a disposable type that is intended for single use or several times use, or a type that can be used repeatedly after washing. May be. In addition, this mask can be suitably used for wearers such as children including preschool children, elementary school students, junior high school students, and adults with small faces. By configuring a mask having a shape enlarged in a similar manner, it can be used for a wearer such as a general adult.

A mask main-body part is formed by the left side sheet part and right side sheet part which consist of nonwoven fabrics, and is comprised as a site | part which covers a wearer's at least mouth and nose. Thereby, when wearing a mask, a mouth space is formed between the mask main body and the wearer's mouth. The mask main body can be formed by one or a plurality of sheet portions or sheet pieces. Typically, the mask body is formed by partially joining one sheet portion or sheet piece, or by joining all or part of a plurality of sheet portions or sheet pieces in a connected manner. . The left sheet part and right sheet part that form the mask main body part are sheet-like components that are typically made by fixing or intertwining fibers by mechanical, chemical, or thermal processes. There is typically a non-woven fabric that includes heat-meltable fibers (thermoplastic fibers) in part and can be fused (welded).
The left ear hook part and the right ear hook part are formed to extend from both sides of the mask main body part and have an ear hook hole that is hooked on the wearer's ear. The left ear hook portion and the right ear hook portion may have a separate structure from the mask main body portion, or may have a single structure as a part of the mask.
The mask of this configuration is flat when the mask is folded (also referred to as “when the mask is stored” or “when the mask is not used”) in which the left and right sheet portions of the mask main body are overlapped with each other. When the mask is worn, the shape is three-dimensional.

  In particular, in the mask of this configuration, when the mask is folded, it is orthogonal to the boundary line between the mask main body part, the left ear hook part, and the right ear hook part, and the edge part between the boundary line and the left sheet part and the right sheet part. The length of the first extension line formed at the upper end portion of the boundary line is longer than the length of the second extension line formed at the lower end portion of the boundary line. Is also configured to be shorter. In short, with respect to the lateral width of the mask body in the left-right direction, the lateral width at the upper end is configured to be narrower than the lateral width at the lower end. In this configuration, in a state where the mask is expanded in a three-dimensional shape, the mask main body viewed from the wearer side or the opposite side has a trapezoidal shape with the upper end side as a short side and the lower end side as a long side, or The left and right end portions generally form a “C” shape. In addition, regarding the boundary line between the mask main body part, the left ear hook part, and the right ear hook part, it is preferable that the boundary line is configured in a straight line. On the other hand, when the boundary line is configured in a curved line, a straight line connecting the ends of the curved boundary line is defined as a boundary between the mask main body part, the left ear hook part, and the right ear hook part. It can also be defined as a line.

  According to such a configuration of the mask according to the present invention, the width at the upper end of the mask main body is narrower than the width at the lower end, so that the upper end of the mask main body can be in surface contact with the wearer's nose. Therefore, it becomes possible to prevent the mask from shifting from an appropriate wearing position when the wearer wears a mask having a low nose and a high cheek, such as a child or a person with a small face. Therefore, it is possible to improve the fit of the mask to the wearer.

Further, in the mask of this configuration, when the mask is folded, the mask is orthogonal to a boundary line between the mask main body part, the left ear hook part, and the right ear hook part, and the boundary line, the left sheet part, and the right sheet Among the extended lines formed by connecting the edges between the parts, the longest extended line having the longest extension length is formed at the midpoint of the upper end portion and the lower end portion of the boundary line. It is preferable that the configuration is arranged below the extended line. In short, as a further configuration, a configuration is adopted in which the top portion of the mask main body, that is, the top portion of the mouth covering portion, is arranged below the center in the vertical direction of the mask.

  According to such a configuration, the mask is prevented from deviating from an appropriate wearing position, and the top of the mask main body is disposed below the middle so that the tip of the nose can be used particularly like a child or a person with a small face. It is possible to increase the wearer's mouth space when the wearer wears a mask with a small difference in height between the mouth and the tip (lips).

Further, in the mask of this configuration, when the mask is folded, the upper end portion of the boundary line between the mask main body portion, the left ear hook portion and the right ear hook portion, the left seat portion and the right seat portion. It is preferable that the ear hooking hole is disposed below the extended line connecting the upper end portions of the edge portions. In short, as a further configuration, a configuration is adopted in which the ear hooking holes of the left ear hooking portion and the right ear hooking portion are disposed at a position relatively lower than the upper end portion of the mask main body portion.

  According to such a configuration, the mask is prevented from deviating from an appropriate wearing position, and the ear hooking holes of the left ear hook portion and the right ear hook portion are relatively low with respect to the upper end portion of the mask main body portion. When the mask is worn by a wearer with a low ear position such as a child or a small-faced person, the mask can be set to an appropriate wearing position. In addition, according to such a configuration, the upper and lower lengths of the left ear hook and the right ear hook, that is, the length of the upper part of the left ear hook and the right ear hook with the ear hook hole being sandwiched between Regarding the length of the side part, the length of the upper part and the length of the lower part are substantially equal, or the length of the upper part is slightly longer than the length of the lower part. Therefore, even if the left and right ear hooks are pulled slightly to the left and right, the upper part and the lower part will extend in substantially the same manner, ensuring a well-balanced mounting performance and providing local force. Can be prevented from acting.

  Moreover, in the mask of the further form which concerns on this invention, Of the said mask main-body part, the said ear hook part, and the boundary part of the said mask main-body part and the said left ear hook part and the right ear hook part It is preferable that at least one has a display unit that displays the vertical direction of the mask in an identifiable manner. According to such a structure, it becomes possible to make a wearer identify easily the up-down direction of a mask with a display part. With regard to a specific configuration of the display unit, typically, a configuration in which characters, symbols, patterns, designs, and the like are represented by a bonding embossing structure, a printing structure, and the like can be used.

  Another embodiment of the mask according to the present invention has the same configuration as the mask having the mask main body portion, the left ear hook portion, and the right ear hook portion, and is a decoration attached to the outer surface of the mask main body portion. It is set as the structure further provided with the sealing member for. Further, another mask according to the present invention has the same configuration as the mask having the mask main body portion, the left ear hook portion, and the right ear hook portion, and covers the outer surface of the mask main body portion. It is set as the structure further provided with the seal | sticker member for decoration. The decorative seal member here is preferably configured as an adherent member on which a display that easily attracts children's interest, for example, a specific character or the like is displayed. According to such a configuration, it is possible to enhance the interest of the mask by the decorative seal member.

  As described above, according to the present invention, it is possible to provide a mask that fits the wearer's face comprehensively.

  Hereinafter, a mask 1 which is an embodiment of a “mask” in the present invention will be described in detail with reference to FIGS. The mask 1 is configured as a disposable mask that is assumed to be used once or several times. It can be used not only as a barrier function as a countermeasure against viruses such as pollen countermeasures and colds, but also as a mask assuming various functional additions in the space environment, including moisturizing in the mouth and nasal spaces. The mask 1 can be suitably used for wearers such as children including preschool children, elementary school students, junior high school students, and adults with small faces. By constructing a mask having a shape that is enlarged in a similar manner, it can be used for a general wearer such as an adult.

  First, FIG.1 and FIG.2 is referred regarding the whole structure of the mask 1 of this Embodiment. FIG. 1 shows a side view of the mask 1 according to the present embodiment when the mask is folded, and FIG. 2 shows the mask 1 when the mask 1 in FIG. The figure which looked at 1 from the wearer side is shown. As shown in FIGS. 1 and 2, the mask 1 of the present embodiment is roughly divided into a mask main body 2 and an ear hook 3. The mask main body 2 here corresponds to the “mask main body” in the present invention.

(Configuration of mask body 2)
The mask body 2 is configured as a part that covers the wearer's mouth and nose among the parts of the mask 1. The mask main body 2 is a portion having a cup shape as a whole and covers at least the mouth of the wearer, and is also referred to as a “cup portion” or “mouth cover portion”. In the present embodiment, as shown in FIGS. 1 and 2, the mask main body 2 includes a sheet piece-like left side sheet portion 2 a that covers the wearer's left face and a sheet piece-like form that covers the wearer's right face. It consists of a right seat 2b. The left seat portion 2a and the right seat portion 2b are joined to each other by thermal welding at the edge portion 2c so that the mask 1 is expanded in a three-dimensional shape. The wearing surface is a concave shape. An edge portion 2c formed at a joint portion between the left seat portion 2a and the right seat portion 2b extends in a curved shape with respect to the wearer's vertical direction, and the mask main body portion 2 is left and right with the edge portion 2c as a boundary. Divided into two. The left seat portion 2a here corresponds to the “left seat portion” in the present invention, and the right seat portion 2b here corresponds to the “right seat portion” in the present invention.

  Further, when the mask is worn, the mask body 2 is set in a three-dimensional shape with the left seat portion 2a and the right seat portion 2b spaced apart from each other as shown in FIG. At the time (also referred to as “when the mask is stored” or “when the mask is not used”), the left-side sheet portion 2a and the right-side sheet portion 2b are set in a folded state (planar shape) superimposed on each other. In addition, this mask main-body part 2 should just be made into a three-dimensional shape at least at the time of mask wear, and may be made into the same three-dimensional shape not only at the time of mask wear but before mask wear. The mask 1 including the mask main body 2 that can form a three-dimensional shape or a three-dimensional shape is also referred to as a “three-dimensional mask” or a “three-dimensional mask”.

  In this Embodiment, the mask main-body part 2, ie, the left side sheet part 2a, and the right side sheet part 2b, are all formed using the nonwoven fabric of a thermoplastic synthetic fiber. As this thermoplastic fiber, polyethylene, polypropylene, polyethylene terephthalate, etc. are used. Air-through method, spunbond method, thermal bond method, spunlace method, point bond method, melt blow method, stitch bond method, chemical bond method, needle A material having a basis weight of 30 to 150 [g / m 2] manufactured by a punch method or the like can be used as appropriate. In addition, this non-woven fabric has pollen / splash virus trapping properties and breathability, has a good touch and feels good to wear, and has a three-dimensional structure that is easily retained when applied to the face. Thus, it is preferable that the stretchability is lower than that of the ear hook portion 3. The nonwoven fabric referred to here corresponds to the “nonwoven fabric” in the present invention.

(Configuration of the ear hook 3)
The ear hook 3 is configured to include a left ear hook 3a and a right ear hook 3b corresponding to the left and right sides of the mask main body 2, that is, the left seat 2a and the right seat 2b, respectively. Here, the left ear hook 3a corresponds to the “left ear hook” in the present invention, and the right ear hook 3b corresponds to the “left ear hook” in the present invention. The left ear hook 3a extends from the end of the left seat 2a, the right ear hook 3b extends from the end of the right seat 2b, the left ear hook 3a and the right ear hook 3b are Both are ring-shaped with ear-hook holes (openings) 5 that are hooked on the wearer's ears. The ear hook 5 extends in a longitudinal direction in a direction intersecting with the vertical direction of the mask 1 (vertical direction in FIG. 1). The ear hook 5 corresponds to the “ear hook” in the present invention.

  Each of the left ear hook 3a and the right ear hook 3b has a separate structure from the mask main body 2 and is configured to be partially overlapped with the mask main body 2 at the boundary portion 4 and joined to each other. The Although details will be described later, a so-called “embossing” in which bonding is performed using an embossing roller having an uneven shape can be used for this bonding structure. If necessary, the left ear hook 3a and the right ear hook 3b can be integrated with the mask body 2 as part of the mask 1.

  When the mask is worn, the ear hooking holes 5 of the left ear hooking portion 3a and the right ear hooking portion 3b are hooked on the wearer's ears with the face of the wearer, particularly the nose and mouth covered with the mask main body 2. . At this time, the left ear hook part 3a and the right ear hook part 3b are both nonwoven fabrics of thermoplastic synthetic fibers, like the mask main body part 2, and are stretchable so as not to hurt the ear, for example, the mask main body. It is preferable to have high stretchability that is higher than that of the portion 2. Specifically, as the configuration of the left ear hook portion 3a and the right ear hook portion 3b, an extension layer (for example, a nonwoven fabric in which propylene continuous fibers are welded to each other) made of inelastically extensible fibers, and elasticity A configuration in which elastic layers made of stretchable elastic stretchable fibers (for example, non-woven fabric using elastic yarn made of thermoplastic synthetic fiber elastomer or urethane, etc.) can be suitably used. Although details will be described later, the left ear hook 3a and the right ear hook 3b have a plurality of openings (openings) that are effective for achieving both ease of elongation and ease of recovery when wearing a mask. 6 is provided.

  By the way, in designing and developing a mask of the type of the mask 1 having the above-described configuration, it is important to improve the fit to the wearer. As a premise, the features such as the size and shape of the wearer's face, the mask It is necessary to fully consider the characteristics of the wearer when handling the item. For example, when a general adult mask is applied to a wearer such as a person with a short nose and high cheeks or a person with a low ear position, the mask will be displaced from the proper wearing position when wearing the mask. Or a phenomenon that the wearer's mouth space cannot be secured is assumed, and the original function of the mask cannot be achieved. In addition, for example, when providing a mask for a child or a small-faced person, simply reducing the size of a general adult mask to a similar size and reducing the size of the wearer's face is sufficient. There is a limit to reflect it.

Accordingly, the present inventors pay attention to the characteristics of the child's face and the characteristics of the child, and the structure of the mask body 2 and the ear hooks 3a and 3b constituting the mask 1 It was decided to review it in general so as to correspond to. At that time, we focused on the following six review points.
(1) Regarding the shape of the child's face, the nose is lower and the cheeks are higher (swelling) than the general adult. In addition, the nose tends to be rounder than general adults.
(2) Regarding the shape of the child's face, the difference in height between the tip of the nose and the tip of the mouth (lips) is smaller than that of a general adult.
(3) Regarding the shape of the child's face, the position of the ear is lower than that of a general adult.
(4) The mask is liable to deviate from the proper wearing position because it speaks well about the characteristics of the child.
(5) Regarding the characteristics of the child, the force applied to the mask does not work well and the ear hook tends to stretch because it tends to be pulled and attached.
(6) Regarding the characteristics of children, I am tired and less interested in masks.

  Based on these review points, the present inventors diligently studied a mask structure that is particularly suitable for wearers such as children. As a result of the study, the present inventors can construct a mask optimal for a wearer such as a child by configuring a mask having at least one of the following first to sixth structures. It has become possible. Here, specific structures (first to sixth structures) of the mask will be described in detail with reference to FIGS.

(First structure)
For the first structure of the mask 1, reference is made to FIGS. 3 and 4. FIG. 3 is a side view of the mask 1 according to the present embodiment when the mask is folded, and a diagram for explaining the first structure is shown. FIG. 4 shows the mask 1 in FIG. FIG. 3 is a view as seen from the wearer side, illustrating the first structure.

  This first structure is configured as a solution corresponding to the review points (1) and (4) described above, and the lateral width of the mask main body 2 in the left-right direction is such that the lateral width at the upper end is at the lower end. The configuration is narrower than the lateral width. Specifically, when the mask is folded as shown in FIG. 3, it is orthogonal to the linear boundary line 4a between the mask main body 2 and the left ear hook part 3a and the right ear hook part 3b, and the boundary line 4a and the left side. Of the extended lines formed between the sheet portion 2a and the edge portion 2c between the right sheet portion 2b, the length (length) of the first extended line L1 formed at the upper end portion X1 of the boundary line 4a a) is configured to be shorter than the length (length b) of the second extending line L2 formed at the lower end X2 of the boundary line 4a. At this time, the first extended line L1 is defined as a line connecting the upper end X1 and the point Y1 of the edge 2c among the lines orthogonal to the boundary 4a at the upper end X1 of the boundary 4a. Similarly, the second extending line L2 is defined at the lower end portion X2 of the boundary line 4a as a line connecting the lower end portion X2 and the point Y2 of the edge portion 2c among the lines orthogonal to the boundary line 4a.

Therefore, in such a configuration, when the mask is expanded as shown in FIG. 4, the length of the line connecting the left and right upper end portions X1 at the shortest distance is twice the length of the first extended line L1 (2 × a ) And the length of the line connecting the left and right lower end portions X2 at the shortest distance substantially matches the length (2 × b) of the second extended line L2. In such a configuration, in a state where the mask 1 is expanded in a three-dimensional shape, the mask main body 2 viewed from the wearer side or the opposite side has the upper end portion X1 side as a short side and the lower end portion X2 side as a long side. A trapezoidal shape is formed, or a substantially “C” shape is formed by the left and right ends thereof.
The “boundary line 4a”, “edge 2c”, “upper end X1 of the boundary line 4a”, “lower end X2 of the boundary line 4a”, “first extension line L1”, and “second The “extension line L2” is the “boundary line”, “edge”, “upper end part of the boundary line”, “lower end part of the boundary line”, “first extension line”, and “second extension line”, respectively. Is supported.

  According to such a 1st structure, by comprising so that the horizontal width in the upper end part of the mask main-body part 2 may be narrower than the horizontal width in a lower end part, the upper end part side of a mask main-body part is surface contact with a wearer's nose. Therefore, it is possible to prevent the mask from shifting from an appropriate wearing position when a mask is worn by a wearer who has a low nose and a high cheek, such as a child or a person with a small face.

  More specifically, when the wearer wears the mask 1, the top edge portion of the mask main body 2 is arranged on the ridgeline of the wearer's nose, and the left seat portion 2 a and the right seat portion 2 b are Since the upper end portion of the mask main body 2 is configured to be shorter than the lower end portion, the mask body portion 2 fits well to the wearer's nose. Further, when the left ear hook 3a and the right ear hook 3b are put on the ear, the width at the upper end of the mask main body 2 is short, and therefore the force that the ear hook pulls the mask main body 2 from the lower end side. Is larger on the upper end side. That is, the upper end side of the mask main body 2 is closer to the wearer, while the tightening of the lower side of the mask main body 2 on the lower side of the wearer's face is relatively weak. . Further, at this time, since the lower end of the mask body 2 is formed longer than the upper end, the lower end of the mask body 2 covers a wide range of the wearer's chin. The mask clamping force on the jaw is more easily distributed. Therefore, when the wearer crawls while wearing the mask, even if the jaw moves, the mask 1 does not easily follow the movement of the jaw, and the mask 1 does not easily deviate from the proper wearing position.

  In addition, regarding the boundary line 4a between the mask main body 2 and the left ear hooking portion 3a and the right ear hooking portion 3b, the boundary line is preferably configured in a straight line. On the other hand, when this boundary line is configured in a curved shape, a straight line connecting the ends of the curved boundary line is connected to the mask main body 2, the left ear hooking portion 3a, and the right ear hooking portion 3b. It can also be defined as a boundary line between them.

(Second structure)
With regard to the second structure of the mask 1, reference is made to FIGS. 5 and 6. FIG. 5 is a side view of the mask 1 according to the present embodiment when the mask is folded, and is a view for explaining the second structure. FIG. 6 shows the mask 1 in FIG. The figure seen from the wearer side at the time, Comprising: The figure explaining 2nd structure is shown.

This second structure is configured as a solution corresponding to the review point (2), and the top of the mask body 2 (point Y4 in FIG. 5), that is, the top of the mouth covering part, The mask 1 is configured to be positioned below the center with respect to the vertical direction of the mask 1. Specifically, at the time of folding the mask shown in FIG. 5, the boundary line 4a between the mask main body 2 and the left ear hooking portion 3a and the right ear hooking portion 3b is orthogonal to the boundary line 4a and the left seat portion 2a. And the 4th extended line L4 (length c) made into the longest extension length among the extended lines formed connecting between the edge part 2c between the right side sheet | seat part 2b is the boundary line 4a. It is comprised so that it may be arrange | positioned below the 3rd extension line L3 formed in the midpoint part X3 of the upper end part X1 and the lower end part X2. At this time, the third extended line L3 is defined as a line connecting the midpoint portion X3 and the point Y3 of the edge portion 2c among the lines orthogonal to the boundary line 4a at the midpoint portion X3 of the boundary line 4a. The Similarly, the fourth extended line L4 is a line connecting the point X3 on the boundary line 4a and the point Y4 on the edge 2c among the lines that are orthogonal to the boundary line 4a and have the longest extension length. It is prescribed. In such a configuration, when the mask is expanded as shown in FIG. 6, the length of the line connecting the left and right points X4 at the shortest distance is twice the length of the fourth extended line L4 (2 × c). Is substantially matched.
The “middle point portion X3”, “third extension line L3”, and “fourth extension line L4” referred to here are respectively “middle point portion”, “upper end portion and lower end portion of the boundary line” in the present invention. And “the longest extended line with the longest extended length”.

  By adopting such a second structure, the top of the mask main body is disposed below the center with respect to the vertical direction of the mask, so that the tip of the nose and the mouth (lips) especially like a child or a small-faced person. ), The wearer's mouth space can be increased when wearing the mask of the wearer with a small height difference.

(Third structure)
With regard to the third structure of the mask 1, reference is made to FIGS. 7 and 8. FIG. 7 is a side view of the mask 1 according to the present embodiment when the mask is folded, and a diagram for explaining the third structure is shown. FIG. 8 shows the mask 1 in FIG. The figure seen from the wearer side at the time, Comprising: The figure explaining a 3rd structure is shown.

The third structure is configured as a solution corresponding to the review points (3), (4), and (5), and the ear hooking holes of the left ear hooking portion 3a and the right ear hooking portion 3b. 5 is arranged at a position relatively lower than the upper end of the mask main body 2. Specifically, when the mask is folded as shown in FIG. 7 and when the mask is spread as shown in FIG. 8, the upper end portion X1 of the boundary line 4a between the mask main body 2 and the left ear hook portion 3a and the right ear hook portion 3b. And the ear hooking hole 5 is disposed below the fifth extended line L5 connecting the upper end portion Y5 of the edge portion 2c between the left seat portion 2a and the right seat portion 2b. Yes.
The “fifth extended line L5” referred to here is the “upper end portion of the boundary line between the mask main body portion, the left ear hook portion, and the right ear hook portion, the left seat portion, and the right seat portion in the present invention. It corresponds to an “extending line connecting the upper end portion of the edge between the two”.

  According to such a third structure, the ear hooking holes 5 of the left ear hooking portion 3a and the right ear hooking portion 3b are disposed at a position relatively lower than the upper end portion of the mask main body portion 2, In particular, when a mask is worn by a wearer with a low ear position, such as a child or a person with a small face, the mask can be set to an appropriate wearing position. Further, by adopting such a third structure, the upper and lower lengths of the left ear hook portion 3a and the right ear hook portion 3b, that is, the ear hook holes 5 of the left ear hook portion 3a and the right ear hook portion 3b. With respect to the length of the upper part and the length of the lower part, the length of the upper part and the length of the lower part are approximately equal, or the length of the upper part is the length of the lower part. A little longer than this. Therefore, even if the left ear hook part 3a and the right ear hook part 3b are pulled slightly to the left and right, the upper part and the lower part are extended in a similar manner, ensuring a well-equipped mounting performance and locally. It is possible to prevent the force from acting on.

(Fourth structure)
For the fourth structure of the mask 1, reference is made to FIG. FIG. 9 is a side view of the ear hooking portions 3a and 3b when the mask 1 of the mask 1 according to the present embodiment is folded, and a diagram for explaining the fourth structure is shown.

  This 4th structure is comprised as a solution means corresponding to the said review point (5), and is set as the structure which devised the material and structure of the left ear hook part 3a and the right ear hook part 3b. Specifically, crimped fibers having a fiber length of 44 mm or more are used as the left ear hook 3a and the right ear hook 3b, and the left ear hook 3a and the right ear hook 3b have different lengths 2 A plurality of elliptical apertures (openings) 6 having an axis are provided. Each of the plurality of openings 6 is a hole formed in a penetrating manner in the left ear hook portion 3a and the right ear hook portion 3b. In the left figure in FIG. 9, the opening 6 is an elliptical hole having a major axis 6a and a minor axis 6b. However, not only the elliptical hole but also an opening having a shape such as a rhombus, a polygon, or a circle is used. It can also be adopted as appropriate.

  Typically, the aperture 6 is formed by performing a water jet (high pressure water flow) and then a water jet (high pressure water flow) on the entire surface of the spunlace nonwoven fabric. It is formed. By using such an opening process, the edge of the opening 6 has a fiber density higher than that of other parts, and a state in which fibers are bundled is formed, and the extended ear hooks 3a and 3b are formed. This promotes the returnability (also referred to as “restorability”, “recoverability”, “stretchability”, or “springiness”) for returning to the original state. In this case, the fiber density in at least a part of the edge of the opening 6 may be higher than the other parts, and the fiber density of a part of the edge of the opening 6 The structure may be higher than the fiber density of other parts, or the fiber density of a part of the edge of the opening 6 may be higher than the fiber density of other parts other than the edge 6. There may be. Moreover, the site | part with a high fiber density of the edge part of the opening 6 typically corresponds at least to the site | part which cross | intersects the short axis 6b among the said edge parts, and its peripheral part.

  More specifically, the production process of the spunlace nonwoven fabric includes a card process, a water jet process, an aperture water jet process, a drying process, and a shrink process. The carding process is a process of forming waves continuously by matching the basis weight of the opened fibers of various fibers uniformly in the width direction. The water jet process is a process in which the wave is entangled with a high-pressure water flow to give the sheet strength. The perforated water jet step is a step of forming a perforation by spraying a high-pressure water stream on a nonwoven fabric when passing a sheet entangled on a structure (net punching plate) from which water is undulated. . In addition, it can also employ | adopt the process of spraying a high-pressure steam jet on a nonwoven fabric instead of this open hole water jet process which sprays a high-pressure water stream on a nonwoven fabric. In the drying process, the moisture contained in the sheet is dried and blown off. In the shrinking process, if the crimped fiber is polypropylene / modified polypropylene, the modified polypropylene begins to shrink around 140 ° C., and the other polypropylene does not shrink, so it becomes coiled. At that time, the flow direction and width of the nonwoven fabric Shrinkage occurs in the direction.

  In such a manufacturing process, a nonwoven fabric substrate having an orientation in the flow direction of the woven fabric is formed particularly by a card process and a water jet process. In addition, by the opening water jet process, a jet fluid (water jet water stream or steam jet) is jetted onto the nonwoven fabric substrate, and the fibers are separated from the hit portion of the jet fluid, that is, the fibers are pushed apart. Openings are reliably formed in the nonwoven fabric. At this time, the water flow (or steam) of the water jet is fixed, and on the other hand, the nonwoven fabric substrate is moved, so that the opening has an oval shape. Therefore, the density of fibers (the degree of density) is increased around the aperture. This high-density fiber is shrunk by a shrinking process, thereby having high spring properties.

  By adopting such a fourth structure, when the ear hooks 3a, 3b are pulled left and right to hook the ear hooks 3a, 3b on the ear when wearing the mask, the opening 6 is entirely shown in FIG. As shown in the right figure, the state changes from a two-dot chain line state to a solid line state, and this causes structural extension in the pulling direction (left-right direction in FIG. 9). With this structural extension, it is possible to provide stretchability, that is, wearing comfort that does not hurt the ear when the ear hooks 3a, 3b are hooked on the ear. On the other hand, since the fiber density is increased and bundled at the edge of the opening 6, the returnability of the extended ear hooks 3a and 3b can be promoted, so that the mask is repeatedly attached and detached. In this case, it is possible to prevent the ear hooks 3a and 3b from remaining stretched, thereby improving the attachment / detachment durability. Therefore, it is possible to achieve both improvement in wearing comfort when wearing a mask and improvement in attachment / detachment durability.

  As shown in FIG. 9, the opening 6 has a longer axis (long axis 6a) between the mask body 2, the left ear hook 3a, and the right ear hook 3b when the mask is folded. A configuration including an opening extending in parallel to the boundary line 4a is preferable. In this case, the extending direction of the boundary line 4a and the opening 6 may be completely parallel, or the opening 6 extends while having a component parallel to the boundary line 4a. The configuration may be substantially parallel or parallel to the boundary line 4a. According to such a configuration, the structural extension in the pulling direction of the ear hooking portions 3a and 3b is more likely to occur, and the returnability of the extended ear hooking portions 3a and 3b can be further promoted. It is possible to achieve both higher wearing comfort when wearing a mask and higher durability of attachment / detachment at a higher level. In the embodiment shown in FIG. 9, the case where the plurality of apertures 6 are regularly arranged is described. However, the configuration in which the plurality of apertures 6 are irregularly arranged, and the plurality of apertures are arranged. In addition to 6, it is also possible to appropriately adopt a configuration in which openings having different shapes are regularly or irregularly arranged.

  Here, with regard to wearing comfort and attachment / detachment durability when wearing a mask, samples constituting the ear hooks 3a and 3b are prepared, and performance evaluation of the samples (measurement / evaluation of tensile strength and elongation recovery rate) is performed. did. The performance evaluation procedure and results will be described below. For this performance evaluation, JIS L-1096 method is typically referred to.

(Sample preparation)
Using the same material as the ear hooks 3a and 3b having the above-described configuration, three samples having a length of 210 [mm], a width of 297 [mm], and a basis weight of 100.0 [g / m2] were collected. Further, three samples each having a width of 50 [mm] and a length of 297 [mm] were collected from each sample in the vertical and horizontal directions.

(Measurement and evaluation of tensile strength)
In the measurement of the tensile strength, the above-mentioned sample having a width of 50 [mm] and a length of 297 [mm] was evaluated by a known constant speed stretchable tensile tester. Regarding the measurement conditions in this case, the holding distance of the sample is 200 [mm], the tensile speed is 200 [mm / min], the strength at 50% elongation of the sample in the vertical and horizontal directions, and the vertical and horizontal directions. The strength at 90% elongation of the sample in the direction was measured, and the average value of the measurement samples was calculated. In this case, the strength at 50% elongation was defined as 50% stress [N], and the strength at 90% elongation was defined as 90% stress [N]. When the 50% stress is 1 [N] or less and the 90% stress is 1 [N] or less satisfies the desired wearing comfort standard, that is, when the ear hooks 3a and 3b are hooked on the ear. It was evaluated that it has elasticity so as not to cause pain in the ear.

(Measurement and evaluation of elongation recovery rate)
In the measurement of the elongation recovery rate, the sample having a width of 50 [mm] and a length of 297 [mm] was evaluated by a known constant speed stretchable tensile tester. Regarding the measurement conditions in this case, the degree of recovery when the gripping interval of the sample is 200 [mm], the tensile speed is 200 [mm / min], the sample is stretched 50% and then recovered to the origin at the same speed. The ratio (ratio) and the degree of recovery (ratio) when the sample was extended 90% and then recovered to the origin at the same speed were measured, and the average value of the measurement samples was calculated. In this case, the degree of recovery after 50% elongation was defined as 50% elongation recovery rate [%], and the degree of recovery after 90% elongation was defined as 90% elongation recovery rate [%]. Further, those having a 50% elongation recovery rate of 70% or more and a 90% elongation recovery rate of 60% or more satisfy the desired attachment / detachment durability standard, that is, the ear hooks 3a and 3b are elongated. It was evaluated that it was difficult to remain as it was.

  As a result of the evaluation, in order to satisfy both the desired wearing comfort standard and the attachment / detachment durability standard, the fiber length of the stretchable fibers constituting the ear hooks 3a and 3b is set to 44 mm or more, and the hole is opened. It was confirmed that the size of 6 before shrinkage was 10 to 50 mesh. When the fiber length of the stretchable fiber is less than 44 [mm], the stress exceeds the reference value even if the size of the opening 6 before shrinkage is increased. Further, if the size of the opening 6 before shrinkage is made larger than 50 mesh, the elongation recovery rate becomes significantly smaller than the reference value, while the size of the opening 6 before shrinkage is made smaller than 10 mesh. This time, it will approach the state of non-open holes, and the stress will greatly exceed the reference value.

(Fifth structure)
With respect to the fifth structure of the mask 1, FIGS. FIG. 10 is a side view of the mask 1 according to the present embodiment when the mask is folded, and a diagram for explaining the fifth structure is shown. FIG. 11 relates to a cross section taken along line AA in FIG. The structure is shown. 12 and 13 both show an embodiment of the second embossed portion 4c in FIG.

  The fifth structure is configured as a solution means corresponding to the review point (6), and is a configuration in which the emboss structure at the boundary portion 4 between the mask main body portion 2 and the ear hooking portions 3a and 3b is devised. It is said. Specifically, as shown in FIG. 10, the ear hooking portions 3a and 3b are a plurality of first hooks formed over the entire boundary portion 4 so as to join the mask main body portion 2 and the ear hooking portions 3a and 3b to each other. In addition to the embossed portion 4b, a plurality of second embossed portions 4c having a shape different from that of the first embossed portion 4b are provided. As shown in FIG. 11, the first embossed portion 4 b and the second embossed portion 4 c are both processed into a concave shape by an embossing roller having an uneven shape. In particular, the first embossed portion 4b of the present embodiment has a function of increasing the bonding strength between the mask main body 2 and the ear hooking portions 3a and 3b.

  The second embossed portion 4c of the present embodiment is a display unit that displays the vertical direction of the mask 1 in an identifiable manner in addition to the bonding function of the mask body 2 and the ear hooks 3a and 3b. It has a function. The 2nd embossing part 4c here comprises the "display part" in this invention. With respect to this display form by the second embossing part 4c, a first display mode in which information about the vertical direction of the mask 1 is displayed by a single second embossing part 4c may be used. A second display mode in which information about the vertical direction of the mask 1 is displayed by combining the second embossed portion 4c may be used. In this case, characters, symbols, patterns, designs, and the like that can display information about the vertical direction of the mask 1 can be used as appropriate.

  With respect to the first display mode, as shown in FIG. 12, by adopting a mode in which an “upward arrow” is displayed on the second embossed portion 4c, the mask 1 is placed so that the tip of the arrow faces upward. By setting, the vertical direction of the mask 1 is determined. As for the second display mode, as shown in FIG. 13, by adopting a form in which “A” to “E” are displayed in the order of the second embossed portion 4c from the upper side to the lower side, By setting the mask 1 so that the second embossed part 4c displaying "A" is arranged at the top and the second embossed part 4c displaying "E" is arranged at the bottom. The vertical direction of the mask 1 is determined.

  By adopting such a fifth structure, it becomes possible for the wearer to easily identify the up-and-down direction of the mask 1, and a new display is achieved by using the embossed portion for bonding as a display unit. There is no need to provide a portion, which is effective in reducing the manufacturing cost. Further, by adopting a display form that easily attracts children's interest, such as a specific character, as the second embossing section 4c, it is possible to enhance the children's interest in the mask especially when the wearer is a child. It becomes possible.

  In addition to displaying the information about the vertical direction of the mask 1 by the embossed structure in the boundary portion 4 between the mask main body portion 2 and the ear hooking portions 3a and 3b, instead of or in addition to the boundary portion 4, the mask main body portion. 2 and information on the vertical direction of the mask 1 can be displayed on the outer surfaces of the ear hooks 3a and 3b by an emboss structure or other display structure (for example, a print structure).

(Sixth structure)
With respect to the sixth structure of the mask 1, reference is made to FIG. 14. FIG. 14 is a view for explaining the sixth structure of the mask 1 of the present embodiment.

  The sixth structure is configured as a solution corresponding to the review point (6) described above, and is a decorative member (also referred to as a “seal member”) on the outer surface of the mask body 2. In addition, the structure of the adherend member is devised. Specifically, as shown in FIG. 14, the mask main body portion 2 is formed by attaching the adherent members S <b> 1 to S <b> 4 on the mount S to the outer surface of the disc main body portion 2 appropriately in a puzzle shape. The entire outer surface is covered with the adherend members S1 to S4 almost completely. In other words, by properly arranging the adherend members S1 to S4, a state in which the shape formed by the entire adherend members S1 to S4 substantially matches the shape of the entire outer surface of the mask main body 2 can be completed. It becomes possible. In addition, it is preferable that these adherent members S1-S4 are the structures provided with the air permeability which a wearer's breathlessness does not arise at the time of mask wear.

  By adopting such a sixth structure, particularly when the wearer is a child, the interest of the child with respect to the mask is enhanced, and the desired shape is formed by combining the adherent members S1 to S4 in a puzzle shape. A sense of accomplishment can be imparted, thereby making it possible to obtain a function related to the child's intellectual education. In addition, it is preferable to adopt a configuration in which a display that easily attracts children's interest, for example, a specific character or the like is displayed on each adherent member. In this case, you may comprise so that the same display or a different display may be performed with respect to each of adherend member S1-S4, or the some adherend member of adherend member S1-S4 is arrange | positioned appropriately. Thus, the display on each adherent member can be combined to form a single display as a result. According to such a configuration, it is possible to enhance the interest of the child with respect to the mask, particularly when the wearer is a child.

  FIG. 15 is referred regarding the state which the child as a wearer wears the mask 1 of the said structure. FIG. 15 shows a side view of a mask wearing state in which a child wears the mask 1 of the present embodiment.

As shown in FIG. 15, the mask 1 of the present embodiment is configured to comprehensively fit the child's face. For example, the width at the upper end of the mask body 2 is made narrower than the width at the lower end, and the upper end of the mask body 2 is more easily brought into surface contact with the wearer's nose. This is effective for preventing the mask from shifting from an appropriate wearing position when a mask is worn by a wearer who has a short nose and a high cheek, such as a child or a person with a small face. In response to a request to improve the fit of the nasal site in a general adult, the mask 1 according to the present embodiment having at least the first structure described above is enlarged in a similar manner. This can be done by providing a mask.
Further, for example, by arranging the top of the mask body 2, that is, the top of the edge 2 c on the lower side in the vertical direction of the mask 1, the mouth between the three-dimensional mask body 2 and the wearer's mouth is provided. The space 7 can be formed reliably, which is effective in eliminating discomfort such as breathlessness.
Further, for example, by arranging the ear hooking holes 5 of the left ear hooking portion 3a and the right ear hooking portion 3b at a position relatively low with respect to the upper end portion of the mask main body portion 2, a child or a small face person in particular. Thus, it is effective to set the mask to an appropriate wearing position when the wearer wears the mask with a low ear position.
Further, for example, by providing a plurality of apertures 6 in each of the left ear hook portion 3a and the right ear hook portion 3b, structural extension is caused in the pulling direction, and the ear hook portions 3a and 3b are hooked on the ear. The left ear hook 3a and the right ear are stretched by the fibers in a bundled state in which the fiber density is increased and bundled at the edge of the opening 6 while giving comfort to the ear so as not to hurt the ear. Encouraging the returnability of the hanging portion 3b is effective in providing attachment / detachment durability that prevents the left ear hanging portion 3a and the right ear hanging portion 3b from remaining stretched.

(Other embodiments)
In addition, this invention is not limited only to said embodiment, A various application and deformation | transformation can be considered. For example, each of the following embodiments to which the above embodiment is applied can be implemented.

  In the above embodiment, the mask 1 having the first to sixth structures has been described. However, in the present invention, a mask having at least one function of the first to sixth structures is employed. be able to.

  Moreover, in the said embodiment, although the case where the mask main-body part 2 was formed by the heat welding joining of the left sheet | seat part 2a and the right sheet | seat part 2b was described, in this invention, various joining methods including a heat welding. Thus, the mask main body can be formed by joining all or part of at least one of the plurality of sheet portions.

It is a side view at the time of mask folding of the mask 1 of this Embodiment. It is the figure which looked at the said mask 1 from the wearer side at the time of the mask expansion which expanded the mask 1 in FIG. 1 in three dimensions. It is a side view at the time of mask folding of the mask 1 of this Embodiment, Comprising: It is a figure explaining a 1st structure. It is the figure which looked at the mask 1 in FIG. 3 from the wearer side at the time of mask expansion, Comprising: It is a figure explaining a 1st structure. It is a side view at the time of mask folding of the mask 1 of this Embodiment, Comprising: It is a figure explaining a 2nd structure. It is the figure which looked at the mask 1 in FIG. 5 from the wearer side at the time of mask expansion, Comprising: It is a figure explaining a 2nd structure. It is a side view at the time of mask folding of the mask 1 of this Embodiment, Comprising: It is a figure explaining a 3rd structure. It is the figure which looked at the mask 1 in FIG. 7 from the wearer side at the time of mask expansion, and is a figure explaining a 3rd structure. It is a side view of the ear hook part 3a, 3b at the time of mask folding of the mask 1 of this Embodiment, Comprising: It is a figure explaining a 4th structure. It is a side view at the time of mask folding of the mask 1 of this Embodiment, Comprising: It is a figure explaining a 5th structure. It is a figure which shows the structure regarding the AA line cross section in FIG. It is a figure which shows one Embodiment of the 2nd embossing part 4c in FIG. It is a figure which shows one Embodiment of the 2nd embossing part 4c in FIG. It is a figure explaining the 6th structure of the mask 1 of this Embodiment. It is a figure which shows a mode that the mask wearing state which the child wore the mask 1 of this Embodiment was seen from the side.

DESCRIPTION OF SYMBOLS 1 ... Mask 2 ... Mask main-body part 2a ... Left sheet | seat part 2b ... Right sheet | seat part 2c ... Edge part 3 ... Ear hook part 3a ... Left ear hook part 3b ... Right ear hook part 4 ... Boundary part 4a ... Boundary line 4b ... No. 1 embossed part 4c 2nd embossed part 5 ... ear hook 6 ... opening 6a ... long axis 6b ... short axis 7 ... mouth space

Claims (3)

A mask main body that is formed of a left-side sheet portion and a right-side sheet portion made of a nonwoven fabric and covers at least the mouth and nose of the wearer,
A left ear hook portion and a right ear hook portion that are joined to the mask main body portion so as to extend from both sides of the mask main body portion and have ear hook holes that are hooked on the wearer's ears;
With
The left and right sheet portions of the mask main body are flat when folded, and the left and right sheet portions of the mask main body are folded while the mask is folded. A mask configured to be three-dimensional by being set to an open state ,
When the mask is folded, it is orthogonal to the boundary line between the mask main body part and the left ear hook part and the right ear hook part, and between the boundary line and the edge between the left sheet part and the right sheet part. The length of the first extension line formed at the upper end portion of the boundary line is longer than the length of the second extension line formed at the lower end portion of the boundary line. The mask main body portion is configured to be shorter and viewed from the wearer side in the expanded state, with the upper end portion side of the boundary line being a short side and the lower end portion side of the boundary line being a long side Configured to form a trapezoidal shape,
Furthermore, when the mask is folded, the longest extension line having the longest extension length among the extension lines is longer than the extension line formed at the midpoint between the upper end portion and the lower end portion of the boundary line. It is a configuration arranged below,
Furthermore, when the mask is folded, an upper end portion of a boundary line between the mask main body portion, the left ear hook portion and the right ear hook portion, and an edge portion between the left seat portion and the right seat portion. A mask characterized in that the ear hooking hole is disposed below an extended line connecting the upper end of the mask. The mask according to claim 1 ,
At least one of the mask main body, the ear hook, and the boundary between the mask main body, the left ear hook, and the right ear hook is a display section that displays the vertical direction of the mask in an identifiable manner. A mask characterized by comprising a mask. The mask according to claim 1 or 2 ,
The mask further comprising a decorative seal member attached to the outer surface of the mask main body.

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