CN115315204A

CN115315204A - Gauze mask

Info

Publication number: CN115315204A
Application number: CN202180022979.0A
Authority: CN
Inventors: 本城良太; 鬼泽里奈
Original assignee: Daio Paper Corp
Current assignee: Daio Paper Corp
Priority date: 2020-07-31
Filing date: 2021-07-12
Publication date: 2022-11-08
Also published as: WO2022024732A1; EP4190194A4; JP2022026535A; JP7210512B2; BR112022025324A2; EP4190194A1

Abstract

A mask comprises a mask main body; a pair of sheet-like hangers; and a sheet-like auxiliary material that is interposed between the mask body and the tab portion, wherein the tab portion and the auxiliary material are overlapped on one surface side of the mask body at each end portion in the left-right direction of the mask body, the outer end edge in the left-right direction of the tab portion is positioned inward of the outer end edge in the left-right direction of the mask body and the outer end edge in the left-right direction of the auxiliary material, a first joining portion where the mask body and the auxiliary material are joined in the thickness direction and a second joining portion where the tab portion and the auxiliary material are joined in the thickness direction are formed, and the second joining portion reaches the outer end edge in the left-right direction of the tab portion.

Description

Gauze mask

Technical Field

The present invention relates to a mask.

Background

As a structure of a mask to be worn on the face, there is known a mask including a mask body that at least partially covers the face of a wearer, and a pair of ear hanging portions that are respectively coupled to the mask body, that is, a member that can be hung on each ear of the wearer in order to hold the mask body at a wearing position. The ear hook is often made of a stretchable member.

In recent years, in order to reduce the load applied to the ears, it has been studied to use a sheet-shaped ear portion instead of a string-shaped ear portion. For example, patent document 1 discloses a mask in which first and second tab portions in a sheet shape are joined to respective end portions in the left-right direction in a mask body portion.

(Prior art document)

(patent literature)

Patent document 1 Japanese patent No. 5436262

Disclosure of Invention

(problems to be solved by the invention)

However, in the structure disclosed in patent document 1, the ear straps are directly connected to the mask body. Therefore, depending on the configuration of the ear strap portion and/or the configuration of the mask body, a sufficient bonding strength between the ear strap portion and the mask body may not be obtained. For example, when the ear hanging part is formed of a stretchable material, the mask body may not be deformed to follow the stretching of the ear hanging part during wearing operation or wearing, and the ear hanging part may be separated from the mask body and the mask may be damaged. Therefore, it is conceivable to study the connection between the ear strap and the mask body and connect the two by interposing another member therebetween. However, depending on the coupling method, the end portion of the ear hook may become free, and the end edge of the ear hook may be curled up, and the thickness of the mask may become thicker depending on the amount of curling up of the end edge, and the mask may become bulky when being stored.

In view of the above, an object of one embodiment of the present invention is to provide a mask that is less likely to be damaged, has excellent wearing feeling, and does not increase in volume during storage.

(means for solving the problems)

A mask according to one embodiment of the present invention includes; a mask body; a pair of sheet-like ear portions; and a sheet-like auxiliary material that is interposed between the mask body and the ear loops and that is joined to the mask body, wherein the ear loops and the auxiliary material are overlapped on one surface side of the mask body at each end in the left-right direction of the mask body, and outer end edges in the left-right direction of the ear loops are positioned inward of outer end edges in the left-right direction of the mask body and outer end edges in the left-right direction of the auxiliary material, and wherein a first joining portion where the mask body and the auxiliary material are joined in the thickness direction and a second joining portion where the ear loops and the auxiliary material are joined in the thickness direction are formed, and the second joining portion reaches the outer end edges in the left-right direction of the ear loops.

(Effect of the invention)

According to one embodiment of the present invention, a mask that is less likely to be damaged, has an excellent wearing feeling, and does not increase in volume during storage can be provided.

Drawings

Fig. 1 is a plan view of the outer side of a mask according to an embodiment of the present invention, as viewed from the outside.

Fig. 2 is a plan view of the mask shown in fig. 1 as viewed from the inside (face side).

Fig. 3 is a sectional view taken along line I-I of fig. 1.

Fig. 4 is a plan view showing a state where the pair of ear portions are opened to the side.

Fig. 5 is a sectional view taken along line II-II of fig. 4.

Fig. 6 is an enlarged view of a part III of fig. 4, and is a view for explaining the second joint portion.

Fig. 7 shows a second joint portion of a modification.

Fig. 8 shows a second engaging portion of another modification.

Fig. 9 shows a second engaging portion of a further another modification.

Fig. 10 shows a second engaging portion of a further another modification.

Detailed Description

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding components are denoted by the same reference numerals and description thereof may be omitted unless otherwise specified. In addition, the drawings are schematic views to facilitate understanding of the invention.

(basic constitution of mask)

The mask of the present embodiment may be a mask that can cover the face of the wearer, more specifically, at least the nose and mouth of the wearer. The mask of the present embodiment can have a function of preventing foreign matter from reaching the face or preventing scattering of spray generated by the wearer, and is also called a sanitary mask or a surgical mask. The mask may be disposable or may be reusable by washing.

Fig. 1 shows a plan view of the mask 1 of the present embodiment. Fig. 1 is a view of the mask 1 as viewed from the outside (or the outer surface side), i.e., the side not facing the face when worn, but exposed to the outside. Fig. 2 is a plan view of the mask as viewed from the inside (face side). Fig. 3 shows a sectional view taken along line I-I of fig. 1.

As shown in fig. 1, the mask 1 of the present embodiment is disposed on the front of the face of the wearer when worn, and includes a mask body 10 that can mainly cover the nose and mouth of the wearer, and a pair of

ear loops

20a, 20a coupled to the mask body 10. The mask body 10 has a vertical direction D1 corresponding to the vertical direction of the face of the wearer when worn, and a horizontal direction D2 corresponding to the horizontal direction of the face of the wearer when worn. In the embodiment of fig. 1, the mask body 10 has a rectangular shape in plan view having long sides in the left-right direction D2, but the shape in plan view of the mask body 10 is not limited to the illustrated shape.

As shown in fig. 1 and 2, the mask body 10 has a fold structure 15 formed of a plurality of folds (folds) arranged in the vertical direction D1. The folds of the fold structure 15 are formed by folding the sheet constituting the mask body 10 at a fold line in the left-right direction D2. In a state where a plurality of folds are formed, both side portions (both end portions in the left-right direction D2) of the mask body 10 are fixed by heat sealing or the like. Therefore, when the mask 1 is used, the fold of the fold structure 15 is unfolded in the vertical direction D1, and the center of the mask body 10 in the horizontal direction D2 is bent so as to protrude toward the outer surface side of the mask 1, and can be deformed into a shape suitable for the three-dimensional shape of the face. The specific structure of the pleat structure 15 is not particularly limited, and may be a known structure formed in the mask body.

The mask body 10 may have a multi-layer structure in which a plurality of layers are laminated. For example, a three-layer structure may be adopted, which includes at least an intermediate layer having a function of trapping foreign matter (dust, pollen, bacteria, virus, etc.) enhanced by sandwiching the outer layer and the inner layer. Each layer constituting the main body 10 may preferably include a fiber-containing layer such as a nonwoven fabric, a woven fabric, a knit fabric, or the like, and more preferably includes a nonwoven fabric. Examples of the nonwoven fabric include a spunbond nonwoven fabric, a hydroentangled nonwoven fabric, a meltblown nonwoven fabric, a hot air nonwoven fabric, and a point-bond nonwoven fabric. In addition, it is preferable to use a meltblown nonwoven fabric that can include relatively fine fibers in the intermediate layer. The fibers constituting the fiber-containing layer are preferably resin fibers, and examples of the kind of resin of the resin fibers include polyethylene, polypropylene, polyethylene terephthalate, nylon, and the like. The weight per unit area of the outer layer and the inner layer is 10 to 50g/m ² Preferably 15 to 50g/m ² . The weight per unit area of the intermediate layer having a high foreign-matter-capturing property is preferably 10 to 100g/m ² More preferably 15 to 50g/m ² 。

The pair of

ear hanging portions

20a, 20a may be respectively in a ring shape (or a closed band shape) in a plan view or have a shape including a ring. When worn, the wearer's ear enters the inside of the loop of the ear hook portion 20a, i.e., enters the opening 29 in the center of the ear hook portion 20a, thereby being able to hook the ear hook portion 20a to the ear.

As shown in fig. 1 and 2, the pair of

ear loops

20a and 20a are formed in a sheet shape. The pair of

ear loops

20a, 20a are sheet-shaped, and when the ear loops 20a are hooked to the ears when the mask is worn, the ear loops can contact the back of the ears or the back surface of the earlobes, thereby reducing the burden on the ears. Therefore, the uncomfortable feeling can be reduced even if the device is used for a long time.

In the embodiment shown in fig. 1 and 2, the pair of

ear portions

20a, 20a are formed as a single piece, i.e., an ear portion piece 20, which is detachably joined to each other at the center in the left-right direction D2. Here, the single sheet refers to a form of 1 continuous sheet. The 1 sheet may be a single layer or a laminate of a plurality of layers. Since the pair of

ear loops

20a, 20a are formed in a single piece, the

ear loops

20a, 20a can be positioned at the same time during manufacture, and the mask can be manufactured more easily. However, the pair of

ear hanging portions

20a, 20a are not necessarily combined.

When the pair of

ear portions

20a, 20a are formed as the ear portion pieces 20, the ear portion pieces 20 may be configured to be able to form the pair of

ear portions

20a, 20a separated by breaking at predetermined positions. More specifically, in the embodiment of fig. 1, the pair of

ear portions

20a and 20a are coupled by the coupling portion 28. The coupling form of the coupling portion 28 is not particularly limited, but it is preferably coupling separable by being stretched by a normal force of a user. For example, as shown in fig. 1, the needle hole may be formed. The joint 28 may be formed by setting the thickness of the sheet to be small, or by making the boundary between the pair of

ear portions

20a, 20a fragile or easily stressed by other means. The coupling portion 28 may be configured to be cut by a tool such as scissors.

Both ends of the pair of

ear loops

20a, 20a in the left-right direction D2 are joined to the main body 10 by an auxiliary material 30 (described later in detail), and the other portions are not joined to the mask main body 10. When the mask 1 of the present embodiment is used, the user opens the portions of the

ear loops

20a and 20a that are not joined to the main body 10 to the lateral side in the left-right direction D2 (also referred to as a unfolding operation) before wearing the mask 1. As described above, when the pair of

ear portions

20a and 20a are detachably coupled to each other, the coupling is released and the

ear portions

20a and 20a are separated from each other before the unfolding operation (also referred to as a separating operation).

The pair of

ear loops

20a, 20a are coupled to both side portions (both end portions in the left-right direction D2) on one surface side of the mask body 10. As shown in fig. 1 to 3, the pair of

ear loops

20a and 20a (ear loop pieces 20) have a shape and a size that do not protrude from the mask body 10 at least in the left-right direction D1 in a plan view. With this configuration, a complicated process such as bending the ear hanging piece 20 is not required in the manufacturing process, and the mask body 10 and the ear hanging piece 20 are overlapped and joined, thereby enabling continuous manufacturing of the mask.

The

ear loops

20a, 20a (or the ear loop pieces 20) may be formed of a material having elasticity, or a material having elasticity at least in the left-right direction. The ear straps 20a, 20a have stretchability, so that the user can easily perform an operation of pulling the ear straps 20a, 20a to the rear of the ears and then hooking them to the ears during the mask wearing operation, and the mask body 10 can be attached to the face by the tensile stress generated in the ear straps 20a, 20a during the wearing operation (wearing operation).

The ear hook part 20a may be a single-layer sheet made of a stretchable material, or may be a multi-layer sheet in which a plurality of layers including a layer made of a stretchable material are laminated. The stretchable material may be a linear or string-like stretchable member such as a stretchable nonwoven fabric, a stretchable film, or an elastic thread. In the case of a nonwoven fabric including stretchability, the stretchability of the nonwoven fabric may be embodied by the nonwoven fabric including stretchable fibers, for example, the material itself of the fibers has stretchability or the fibers are crimped fibers. Alternatively, the stretchability may be expressed by a predetermined physical structure, for example, by having projections and depressions on the surface. Specific examples of the stretchable nonwoven fabric include a stretchable hot-air nonwoven fabric, a stretchable spun-bonded nonwoven fabric, a stretchable hydroentangled nonwoven fabric, a stretchable needle-punched nonwoven fabric, and a stretchable chemically bonded nonwoven fabric. The nonwoven fabric preferably used has a basis weight of 5 to 50g/m ² More preferably 8 to 35g/m ² 。

When the ear portion 20a is formed of a multilayer sheet in which a plurality of nonwoven fabric layers are laminated, for example, a spunbond nonwoven fabric/meltblown nonwoven fabric/spunbond nonwoven fabric structure may be used, and at least 1 layer of these may be a stretchable nonwoven fabric. When the ear portion 20a is formed of a multilayer sheet including an elastic film, examples thereof include a nonwoven fabric/an elastic film, a nonwoven fabric/an elastic film/a nonwoven fabric (for example, a spunbond nonwoven fabric/an elastic film/a spunbond nonwoven fabric, a through-air nonwoven fabric/an elastic film/a through-air nonwoven fabric, and the like). In the case of a sheet in which two layers are laminated, one layer is made stretchable, and the other layer is laminated and intermittently fixed in a state in which the stretchable layer is stretched, and then is relaxed to return to a natural state, whereby a sheet for the ear hook portion 20a can be obtained. In the case of a sheet in which three layers are laminated, the layers are laminated and intermittently fixed on both surfaces thereof in a state in which the central layer is extended, and then the sheet is loosened and returned to a natural state, whereby a sheet for the ear hook portion 20a can be obtained.

Among the above, a structure using a stretchable film, particularly a structure in which nonwoven fabrics are arranged on both sides of a stretchable film is preferable because it is easy to manufacture and a high stretchability can be obtained. Examples of the material of the stretch film include polyolefins such as polyethylene and polypropylene, and polyurethane. The stretchability of the stretchable film is preferably such that the maximum elongation (elongation at tensile break) of the stretchable film 5 is 3.5 to 4.0 as measured by a tensile tester. In addition, the stretchable film may have a function of transmitting moisture. In the case of using the stretchable film, the nonwoven fabric is intermittently joined to the stretchable film by ultrasonic welding or the like in a state where the stretchable film is stretched at a predetermined magnification with respect to the natural length, and then the nonwoven fabric is relaxed and returned to the natural state, whereby the sheet for the ear hook portion 20a can be obtained. Since the unbonded portion of the nonwoven fabric is raised by the relaxation of the stretchable film, many folds extending in a direction substantially orthogonal to the stretching direction are formed in the obtained sheet.

The sheet for the ear hanging part 20a can be formed by wrapping the threadlike elastic body with a nonwoven fabric having low or no stretchability in a state where the threadlike elastic body is stretched. The materials may be bonded to each other by a stretchable or non-stretchable hot-melt nonwoven fabric (nonwoven fabric that is softened or melted by heating and can be bonded to another member).

The weight per unit area of the ear hanging part 20a (ear hanging part sheet 20) may be 20 to 150g/m ² . The thickness of the ear portion 20a may be 100 to 3,000. Mu.m.

(auxiliary materials)

In the present embodiment, as shown in fig. 1 and 3, the sheet-like auxiliary material 30 interposed between the mask body 10 and the ear portions 20a is provided at each end of the mask body 10 in the left-right direction D2. That is, the pair of

ear loops

20a and 20a may be coupled to the side portions of the mask body 10 via the sheet-like

auxiliary members

30 and 30, respectively.

The auxiliary material 30 may extend in the vertical direction D1 of the mask 1. The length (width) of the auxiliary material 30 in the left-right direction D2 varies depending on the size and structure of the entire mask 1, and the size, shape, and material of the main body 10 and the ear hanging portion 20a, and is preferably 15 to 35mm. The weight per unit area of the auxiliary material 30 may be 5 to 100g/m ² . In addition, the thickness of the auxiliary material 30 may be 100 to 1,000 μm.

The auxiliary material 30 may be formed of a material having no elasticity or small elasticity, or may be formed of a material having a certain degree of elasticity. The auxiliary material 30 may include, for example, a stretch nonwoven fabric. In this case, the auxiliary member 30 preferably has stretchability at least in the left-right direction D2, but the stretchability of the auxiliary member 30 is preferably smaller than that of the ear portion 20a. The auxiliary material 30 may be formed of a material that can be irreversibly deformed when a force is applied.

As shown in fig. 1 and 3, the auxiliary member 30 is disposed on the mask body 10 on the side where the pair of

ear loops

20a and 20a overlap. That is, the mask body 10, the ear portions 20a, and the auxiliary material 30 are overlapped with each other at the end portions of the mask body 10 in the left-right direction D2. In the embodiment shown in fig. 1 and 3, a mask body 10, a hanging ear portion 20a, and an auxiliary material 30 are sequentially stacked. The outer edge 11 of the mask body 10 and the outer edge 31 of the auxiliary member 30 may be located at substantially the same position in the left-right direction D2, and the outer edge (also referred to as a joint side edge) 21 of the tab portion 20a (tab piece 20) may be located inward of the outer edge 11 of the mask body 10 and the outer edge 31 of the auxiliary member 30 in the left-right direction D2. Thus, the end portions of the mask body 10 and the auxiliary member 30 in the left-right direction D2 can be in contact with each other in the thickness direction of the mask body 10, and the ear portions 20a and the auxiliary member 30 can also be in contact with each other in the thickness direction. In addition, a first joining portion 50 where the mask body 10 and the auxiliary member 30 are joined is formed in a range where they contact each other, and a second joining portion 60 where the ear hanging portion 20a and the auxiliary member 30 are joined is formed in a range where they contact each other. The configurations of the first joining portion 50 and the second joining portion 60 in fig. 1 to 3 (and fig. 4 and 5 to be referred to later) are schematically shown, and details (shape, size, arrangement, and the like) thereof will be described with reference to enlarged views (fig. 6 to 9).

In this manner, in this embodiment, since the auxiliary material 30 is interposed between the ear straps 20a and the mask body 10, the mask 1 can be formed without directly connecting the ear straps 20a to the mask body 10. Therefore, the mask body 10 and the auxiliary member 30 can be bonded to each other and the ear loops 20a and the auxiliary member 30 can be bonded to each other with appropriate formation.

As described above, the mask body 10 has a function of blocking the intrusion of foreign matter and preventing the scattering of the spray generated by the wearer, and the ear loops 20a have a function of being hooked on the ears of the wearer and holding the body 10 when worn. Therefore, the mask body 10 and the ear loops 20a are usually formed of different materials, and the ear loops 20a are preferably formed of a stretchable material. Therefore, in the conventional structure in which the mask body 10 and the ear portions 20a are directly joined, when the ear portions 20a apply a force to the mask 1 by stretching or the like, the mask body 10 cannot follow the extension of the ear portions 20a, and the joining may not be maintained and both may be separated from each other. In contrast, in this embodiment, since the mask body 10 and the ear hanging portions 20a are not directly joined but the auxiliary material 30 is interposed and joined, even if an excessive force is applied, the

ear hanging portions

20a and 20a are less likely to be separated from the mask body 10, and a mask less likely to be damaged can be provided.

Further, by using the

auxiliary materials

30 and 30, it is possible to prevent a part of the ear hook portion 20a from being used for fixing to the mask body 10. Therefore, compared to the case where the ear loops 20a are directly coupled to the mask body 10, the ear loops 20a can be moved more freely with respect to the mask body 10, and the positions of the ear loops 20a with respect to the ears when the ear loops 20a are worn on the ears can be set more freely.

Further, according to this embodiment, since it is not necessary to use a large amount of adhesive or use an adhesive which becomes too hard after curing in order to form a firm joint between the mask body 10 and the ear hanging portions 20a, the function of each member is not impaired, and the flexibility of the mask can be maintained, so that a mask with good wearing feeling can be obtained.

(operation for starting use and wearing operation)

Next, the operation performed by the user to start the use will be described. When the mask is to be used, the user can pinch or hold the pair of

ear loops

20a, 20a with his/her hands, and can stretch them in opposite directions, thereby spreading them outward in the right-left direction D2 (spreading operation). As shown in fig. 1 to 3, when the pair of

ear portions

20a, 20a are coupled to each other by the separable coupling portion 28, the coupling is released and the

ear portions

20a, 20a are separated from each other (separation operation). If the coupling portion 28 is formed by an eyelet formed along the boundary line between the pair of ear portions 20a, the eyelet can be broken to separate the

ear portions

20a, 20a along the boundary line. Thereafter, the user can open the pair of

ear portions

20a, 20a outward in the right-left direction D2 (indicated by an arrow) while holding them, as shown in fig. 3.

Fig. 4 shows a state in which the pair of

ear portions

20a, 20a are opened outward in the right-left direction D2 from the state of fig. 1. In addition, fig. 5 shows a sectional view taken along line II-II of fig. 4. As shown in fig. 4 and 5, when the pair of

ear portions

20a, 20a is opened, the

ear portions

20a, 20a are reversed, that is, the surfaces of the

ear portions

20a, 20a facing the main body 10 before use are exposed.

After the user opens the pair of

ear loops

20a, 20a outward in the left-right direction D2, the mask body 10 is placed on the face of the wearer such that the face on the face side of the mask body 10 faces the face of the wearer, and the

ear loops

20a, 20a are hooked to the ears of the wearer.

In a state before the start of use (fig. 1 to 3), a pair of

ear loops

20a, 20a (ear loop pieces 20) in a single sheet shape are arranged on the mask body 10 in a superposed manner. The pair of

ear loops

20a, 20a may be overlapped on either surface of the mask body 10, but as shown in the figure, it is preferably overlapped on the outer surface of the mask body 10. This can reduce or substantially prevent contact with the inner surface (face side surface) of the mask body 10 when the mask 1 is worn.

In the embodiment shown in fig. 1 to 3, a pair of

ear loops

20a, 20a are coupled to the outer surface side (the side exposed to the outside when worn) of the mask body 10, and are disposed on the outer surface side of the mask body 10 before use. Although the side where the pair of

ear loops

20a and 20a overlap may be the inner surface side (face side) of the mask body 10, the mask can be worn sanitarily by being placed on the outer surface side and joined to each other, so that the possibility of releasing the inner surface side (face side) of the mask body 10 when the pair of

ear loops

20a and 20a are unfolded at the start of use can be reduced.

For example, when the user wears the mask 1 by himself, the mask 1 is placed on the face of the user so that the inner surface of the mask body 10 faces the divided face, and the coupling of the

ear loops

20a, 20a to the coupling portion 28 is released by one hand while the outer surface of the mask body 10 is pressed by the other hand, and one ear loop 20a is hooked to the ear. Then, after one hand pressing the mask body 10 is replaced with the other hand, the other ear hook portion 20a can be hooked to the ear with one hand.

For example, in a state where the mask 1 is placed with the outer side of the mask 1 directed vertically upward (with the outer surface of the body 10 directed vertically upward), the user holds the pair of

ear portions

20a, 20a with hands and opens the mask outward in the left-right direction D2. After that, the mask 1 is moved toward the face of the other wearer while holding the pair of ear loops 20a, and the mask body 10 is placed at a desired position on the face of the wearer, and then the pair of

ear loops

20a, 20a can be hooked to the ears of the wearer without changing the holding method. Therefore, the mask 1 of the present embodiment can be applied to a case where a person who is difficult to wear the mask by himself/herself, such as a child or a patient, wears the mask.

As shown in fig. 1 and 2, the

ear portions

20a and 20a may be formed with

grip portions

25 and 25 that can be gripped by a user. The shape is not particularly limited as long as the user can pinch the

knob portions

25 and 25 during the separating operation and/or the unfolding operation, but is preferably a shape protruding from the mask body 10 in a plan view, preferably a shape protruding from the lower end of the mask body 10. This makes it possible for the user to perform the separating operation and the unfolding operation in a hygienic manner without touching or substantially without touching the mask body 10. The

grip portions

25, 25 can also be used to adjust the wearing state of the

ear loops

20a, 20a after wearing.

The main body 10 may be embossed, printed, sewn, or the like to form marks 18 that can distinguish the front and back surfaces (outer surface and inner surface) of the mask main body 10. The mark 18 may be visually recognizable to the user, but is not limited thereto. As shown in fig. 1, 2, etc., the print 18 may be a character, or may be a number, a symbol, a figure, a sign, or the like. If the indicia 18 is text, the user can identify the side of the text that can be read correctly as the outer surface.

(joining of the parts)

In this embodiment, the sheet-shaped ear portion 20a is overlapped with the sheet-shaped auxiliary member 30 and is joined by the first joining portion 50. In addition, the mask body 10 is overlapped with the sheet-shaped auxiliary material 30 and is joined by the second joining portion 60. The first bonding portion 50 and the second bonding portion 60 are formed by a device that bonds opposing surfaces of members to each other by applying pressure and/or heat, for example, heat sealing, ultrasonic sealing, non-heated embossing, or the like. Among them, heat sealing is preferably used from the viewpoint of enabling reliable joining.

The mask body 10 and the

ear hanging portions

20a and 20a (ear hanging portion piece 20) can be joined by the first joining portion 50 and the second joining portion 60 in the following procedure. First, a combination of the ear hanging part 20a (or the ear hanging part piece 20) and the auxiliary material 30 is formed. At this time, the auxiliary material 30 is arranged in the lug portion 20a in a shifted manner so that the outer end edge (joint side end edge) 21 in the left-right direction D2 of the lug portion 20a is positioned inward in the left-right direction D2 from the outer end edge 31 in the left-right direction D2 of the auxiliary material 30, and the lug portion 20a and the auxiliary material 30 are joined at the second joint portion 60 to form an assembly. The combined body is arranged on the mask body 10 such that the outer end 21 of the ear hook 20a in the lateral direction D2 is located inward of the outer end 11 of the mask body 10 in the lateral direction D2, and preferably such that the outer end 31 of the auxiliary material 30 is aligned with the outer end 11 of the mask body 10. Thereby, the vicinity of the end portion of the mask body 10 in the left-right direction D2 is in direct contact with the auxiliary member 30, and the first joining portion 50 is formed in the contact region. In this way, the joined portion between the mask body 10 and the ear hanging portions 20a at the end of the mask 1 in the left-right direction D2 can be easily formed without requiring a complicated process such as folding back.

As shown in fig. 1, the first joining portion 50 and the second joining portion 60 are preferably formed continuously over the vertical direction D1, i.e., from the upper end to the lower end in the vertical direction D1. However, the configuration of the first joining part 50 or the second joining part 60, that is, the pattern or method of joining in the first joining part 50 or the second joining part 60 is not particularly limited. However, from the viewpoint of ensuring both flexibility and adhesive strength, it is preferable that both the first joining portion 50 and the second joining portion 60 are formed of a plurality of small joining portions.

Fig. 6 shows an enlarged view of one of the second engagement portions 60. Fig. 6 corresponds to an enlarged view of a part III of fig. 5 showing a state where the lug portion 20a is expanded. As shown in fig. 6, the second engaging portion 60 has a plurality of engaging small portions 65, \8230. Since the plurality of small joining portions 65, \ 8230are formed separately from each other in the vertical direction D1, flexibility can be improved particularly when the mask 1 is bent in the vertical direction D1. Such a small joining portion 65 is preferably formed by fusion bonding by heat sealing or the like, because the joining strength between the ear portion 20a and the auxiliary material 30 can be increased.

In the example of fig. 6, the length (width) of the joint small portion 65 in the left-right direction D2 of the second joint portion 60 corresponds to the width w of the second joint portion 60 ₂ . The width w of the second engaging portion 60 ₂ May be 3-10 mm. Width w ₂ It is not necessarily constant, and may vary from location to location. By reducing the width w ₂ Setting the above range can form reliable bonding between the ear hanging part 20a and the auxiliary material 30, and can prevent the second bonding part 60 from being hardened and damaging the flexibility of the entire mask 1.

In addition, the pitch P in the vertical direction D1 of the joining small portions 65 in the second joining portion 60 (the length in the vertical direction D1 from the center in the vertical direction D1 of one joining small portion 65 to the center in the vertical direction D1 of the adjacent joining small portion 65) may be 0.5 to 5.0mm. The length L of the one small joining portion 65 in the vertical direction D1 may be 0.1 to 1.0mm.

The shape of the small joining portion 65 is not particularly limited, and may be a rectangle having a long side in the left-right direction D2 (fig. 6), or may be a rectangle other than a rectangle. Alternatively, the shape may be a quadrangle other than a rectangle, a polygon other than a quadrangle, a circle, an ellipse, or any other arbitrary shape. However, as shown in fig. 6, a shape that is long in the left-right direction D2 or a linear shape that extends in the left-right direction D2 is preferable because the second joining portion 60 is hard to be broken particularly by a force that pulls the ear portion 20a in the left-right direction D2. When all or a part of the small joining portion 65 is linear, the aspect ratio of the shape, i.e., (short side or short diameter)/(long side or long diameter) may be 0.1/15.0 to 1.0/4.0.

The second engaging portion 160 is shown in fig. 7 as an example of the second engaging portion. Fig. 7 corresponds to an enlarged view of a part III of fig. 5 showing a state where the lug portion 20a is spread. The second joint portion 160 includes a plurality of joint small portions 165, \ 8230that are formed separately in the vertical direction D1, similarly to the second joint portion 60 (fig. 6), but is different from the second joint portion 60 (fig. 6) in that the joint small portions 165, \8230reachthe outer end edge (joint side end edge) 21 in the horizontal direction D2 of the tab portion 20a. In fig. 6 and 7 corresponding to the enlarged view of the part III of fig. 5, the ear hook portion 20a is opened outward in the left-right direction D2, and the arrangement of the ear hook portion 20a is reversed in the left-right direction D2 from the state before the start of use (fig. 1), so that the outer end edge (joint side end edge) 21 of the ear hook portion 20a in the left-right direction D2 is positioned on the center side (inner side) in the left-right direction D2. The outer end edge 21 of the ear portion 20a in the left-right direction D2 is an end edge on the outer side in the left-right direction D2 of the ear portion 20a and on the side where the end portion in the left-right direction D2 of the mask body 10 is joined by the auxiliary member 30 in the state before the start of use, that is, in the state before the

ear portions

20a, 20a are spread.

Since the plurality of small bonding portions 165, and 8230are formed separately from each other in the vertical direction D1, flexibility can be improved particularly when the mask 1 is bent in the vertical direction D1. Such a small joining portion 165 is preferably formed by fusion bonding by heat sealing or the like, and thus the joining strength between the tab portion 20a and the auxiliary material 30 can be increased.

In fig. 7, the length (width) of the joint small portion 165 of the second joint 60 in the left-right direction D2 corresponds to the width w of the second joint 160 ₂ . Width w of the second engaging portion 160 ₂ May be 3 to 10mm. Width w ₂ The number of the positions is not necessarily constant, and may vary depending on the location. By dividing the width w ₂ Setting the above range can form reliable bonding between the ear hanging part 20a and the auxiliary member 30, and can prevent deterioration of the flexibility of the entire mask 1 due to hardening of the second bonding part 160.

In addition, the pitch P in the vertical direction D1 of the joining small portions 165 in the second joining portion 160 (the length in the vertical direction D1 from the center in the vertical direction D1 of one joining small portion 165 to the center in the vertical direction D1 of the adjacent joining small portion 165) may be 0.5 to 5.0mm. The length L of one of the small joining portions 165 in the vertical direction D1 may be 0.1 to 1.0mm.

The shape of the small joining portion 165 is not particularly limited, and may be a rectangle having a long side in the left-right direction D2, or a rectangle other than a rectangle. Alternatively, the shape may be a quadrangle other than a rectangle, a polygon other than a quadrangle, a circle, an ellipse, or any other arbitrary shape. However, as shown in fig. 7, a shape that is long in the left-right direction D2 or a linear shape that extends in the left-right direction D2 is preferable because the second joining portion 160 is particularly resistant to being broken by a force that pulls the ear portion 20a in the left-right direction D2. When all or a part of the small joining portions 165 are linear, the aspect ratio of the shape, that is, (short side or short diameter)/(long side or long diameter) may be 0.1/15.0 to 1.0/4.0.

As in the example shown in fig. 7, if the second joining portion 160 is formed so as to reach the outer end edge 21 of the ear portion 20a in the left-right direction D2, and more preferably so as to straddle the outer end edge 21 of the left-right direction D2, the auxiliary material 30 can be reliably joined to the region up to the outer end edge 21 of the ear portion 20a. In the case where the second engagement portion 160 does not reach the outer end 21 of the ear portion 20a in the left-right direction D2 (the case where the second engagement portion 160 does not include the outer end 21 of the ear portion 20 a), a region near the outer end 21 of the ear portion 20a may be lifted off the auxiliary material 30. The area near the outer edge 21 of the ear hook 20a may be bent or curled by rolling, and the mask 1 may become bulky in the thickness direction during storage. However, according to the example shown in fig. 7, the possibility can be reduced, and the storage can be made compact.

In the mode in which the ear loops 20a are coupled to the outer surface side of the mask body 10 and the auxiliary member 30 is disposed outside the ear loops 20a, the outer edges 21 of the ear loops 20a are exposed to the outside and are visible to a person when worn. Therefore, if the region near the outer edge 21 of the ear hooking portion 20a is bent or rolled up as described above, the beauty (aesthetic quality) of the mask when worn may be impaired. By reaching the outer end edge 21 of the hanger part 20a in the left-right direction D2, the aesthetic quality can be improved. On the other hand, in the case where the ear part 20a is joined to the inner surface side of the mask body 10 and the auxiliary member 30 is disposed inside the ear part 20a, the rolled outer end edge 21 of the ear part 20a may contact the face to impair the wearing feeling, and such inconvenience may be avoided.

The outer end edge 21 of the second engagement portion in the left-right direction D2 reaching the ear portion 20a may include a case where the left-right direction end edge of the second engagement portion 60 is aligned with the outer end edge 21 of the ear portion 20a in the left-right direction D2, or may include a case where the second engagement portion 60 is formed so as to straddle the outer end edge 21 of the ear portion 20a in the left-right direction D2. In the case where the second engaging portion is formed so as to straddle the outer end edge 21 of the hanger part 20a in the left-right direction D2, the length v of the second engaging portion in the left-right direction D2 beyond the outer end edge 21 may be 0 to 3.0mm.

Fig. 8 shows a second engagement portion 260 as another modification of the second engagement portion. The second joint portion 260 has a plurality of joint small portions separated in the vertical direction D1, and reaches the outer end edge (joint side end edge) 21 in the horizontal direction D2 of the ear hooking portion 20a, similarly to the second joint portion 160 (fig. 7). Therefore, in this example as well, the area near the outer end edge 21 of the ear portion 20a can be prevented from being rolled up or bent. However, the second joint 260 is different from the second joint 160 (fig. 7) in that the joint small portion is separated in the left-right direction D2.

More specifically, the second joint 260 includes a row of a plurality of joint

small portions

265, 265 and 8230that are formed apart from each other in the vertical direction D1, and a row of a plurality of joint

small portions

266, 266 and 8230that are formed apart from each other in the horizontal direction D2 and are formed apart from each other in the vertical direction D1. In this way, the second joining portions 260 are formed by a plurality of rows separated in the left-right direction D2, and thus the flexibility of the ear loops 20a and the auxiliary material 30 when they are bent in the left-right direction D2 can be ensured, and the wearing feeling of the mask 1 can be improved.

Fig. 9 shows a second joint 360 as a further variant of the second joint. The second engagement portion 360 has a plurality of engagement small portions separated in the up-down direction D1, and reaches the outer end (engagement side end) 21 of the hanger part 20a in the left-right direction D2, similarly to the second engagement portion 160 (fig. 7) and the second engagement portion 260 (fig. 8). Therefore, according to this example, the winding up and bending of the area near the outer edge 21 of the ear hook 20a can be prevented. In the second joint 360, the joint small portion is separated in the left-right direction D2, as in the second joint 260 (fig. 8). However, the second joint portion 360 is different from the second joint portion 260 (fig. 8) in that the configuration of the joint small portion included in the column is different.

In one row of the plurality of small joining portions included in the second joining portion 360 and formed separately in the vertical direction D1, small joining portions different in length in the horizontal direction D2 are alternately formed. That is, one row of the engaging small portions (the left row in fig. 9) of the second engaging portion 360 includes first engaging small portions 365a having a long length in the left-right direction D2 and second engaging small portions 365b having a short length in the left-right direction D2, and the first engaging small portions 365a and the second engaging small portions 365b are alternately arranged apart from each other in the up-down direction D1. Among them, the first engaging small portion 365a is formed in such a manner as to reach the outer end 21 of the ear portion 20a, preferably, so as to straddle the outer end 21 of the ear portion 20a. On the other hand, the second engagement small portion 365b does not reach the outer end edge 21 of the hanger part 20a. With this configuration, the effect of preventing the region near the outer end edge 21 of the lug portion 20a from being curled up and bent can be ensured, and the second engagement portion 360 can be prevented from being hardened. In addition, the design can be improved as compared with the configuration including the small joining portion having a constant length in the left-right direction D2 (fig. 6 to 8).

Fig. 10 shows a second joint 460 as a further alternative of the second joint. The second engaging portion 460 has a plurality of engaging small portions 465,465, \8230thatare separated in the up-down direction D1, and reaches the outer end edge (engaging side end edge) 21 in the left-right direction D2 of the ear hooking portion 20a, like the second engaging portion 160 (fig. 7). Therefore, according to this example, the area near the outer end edge 21 of the ear portion 20a can be prevented from being rolled up and bent. However, the second joint portion 460 differs from the second joint portion 160 (fig. 7) in that the pitch of the joint small portions 465, \8230thatare included in the second joint portion 460 is not constant but differs depending on the location.

The pitch of the plurality of small bonding portions 465, \8230; included in the second bonding portion 460 is smaller at the end portions in the vertical direction D1 and larger at the center. When the ear hanging part 20a is pulled in the left-right direction D2 during the wearing operation and wearing of the mask 1, force is particularly easily applied to the upper end part and the lower end part of the second joining part. Therefore, as shown in fig. 10, by setting the pitch of the joining minor portions 465 in the second joining portion 460 to be small at the end portions in the vertical direction D1 in advance, the joining strength at the end portions in the vertical direction D1 can be improved. On the other hand, by setting the pitch of the small joining portions 465 to be large in the center of the vertical direction D1 of the second joining portion 460 where the force applied is small, the flexibility of the second joining portion 460, that is, the flexibility of the mask 1 can be maintained.

The first joining portion 50, which is a joining portion between the mask body 10 and the auxiliary member 30, is also preferably formed over the vertical direction D1 in the same manner as the second joining portion 60. The length (width) w of the first joint 50 in the transverse direction D2 ₁ The thickness of the film (FIG. 1) may be set to 3 to 10mm. The width w ₁ Not necessarily constant, and may vary from location to location. By reducing the width w ₁ Setting the above range can form reliable joint between the mask body 10 and the auxiliary material 30, and can prevent the first joint 50 from hardening and damaging the entire mask 1Flexibility of (3). In addition, the discomfort and the like that occur when the first joining portion 50 contacts the face can be reduced.

In the state before the start of use, the first joining portion 50 and the second joining portion 60 may be formed in contact with each other in a plan view, but are preferably provided separately. The separation distance of the first joining portion 50 and the second joining portion 60 in a plan view may be 1 to 15mm.

The following describes specific embodiments of the present invention.

(Note 1)

The modes of note 1 include; a mask body; a pair of sheet-like hangers; and a sheet-like auxiliary material that is interposed between the mask body and the ear loops and that is joined to the mask body, wherein the ear loops and the auxiliary material are overlapped on one surface side of the mask body at each end in the left-right direction of the mask body, and outer end edges in the left-right direction of the ear loops are positioned inward of outer end edges in the left-right direction of the mask body and outer end edges in the left-right direction of the auxiliary material, and wherein a first joining portion where the mask body and the auxiliary material are joined in the thickness direction and a second joining portion where the ear loops and the auxiliary material are joined in the thickness direction are formed, and the second joining portion reaches the outer end edges in the left-right direction of the ear loops.

According to the embodiment of note 1, a sheet-like auxiliary material is provided to be interposed between the mask body and the pair of sheet-like ear straps. In other words, the pair of ear loops are coupled to the mask body through the auxiliary material, respectively. In such a configuration, the mask body and the auxiliary material can be bonded to each other and the ear hook part and the auxiliary material can be bonded to each other, and these bonds can be optimized according to the materials of the two members to be bonded. Thus, compared with the case where the ear strap part and the mask body are directly connected, the wearing feeling is not impaired between the ear strap part and the mask body, and the connection which is difficult to break can be indirectly formed. Therefore, a mask that is excellent in wearing feeling and is less likely to be damaged can be obtained.

In this aspect, a first joining portion where the mask body and the auxiliary member are joined to each other and a second joining portion where the ear strap portion and the auxiliary member are joined to each other are formed, and the second joining portion reaches the outer edge of the ear strap portion in the left-right direction. Since the engaging range of the lug part with the auxiliary material extends to the outer end of the lug part, the portion near the outer end of the lug part which is not engaged with the auxiliary material can be prevented from tilting and separating from the auxiliary material. Therefore, the portion near the outer edge of the ear hook can be prevented from being curled or bent, and the mask can be prevented from becoming bulky during storage.

(Note 2)

In the embodiment of note 2, the second joint portion is formed so as to straddle the outer end edge in the left-right direction of the ear portion.

According to the aspect of note 2, since the engaging range of the ear portion with the auxiliary material is beyond the outer end edge of the ear portion, the above-described effect of preventing the portion near the outer end edge of the ear portion not engaged with the auxiliary material from being separated from the auxiliary material can be improved.

(Note 3)

In the embodiment of note 3, the second joint portion is formed by welding the ear portion and the auxiliary material.

According to the aspect of note 3, the joining strength between the ear portion and the auxiliary material can be improved by the joining by welding.

(Note 4)

In the embodiment of note 4, the second joint portion includes a plurality of joint small portions formed separately in the vertical direction orthogonal to the horizontal direction.

According to the aspect of note 4, the joined portions of the second joined portion between the lug portion and the auxiliary material are dispersed, so that the second joined portion is not excessively hardened and flexibility can be ensured.

(Note 5)

In the embodiment of note 5, the plurality of small joining portions are formed separately in the left-right direction.

According to the aspect of note 5, the above-described effect of preventing the ear portions from being lifted up near the outer edges in the left-right direction can be obtained by separating the small joining portions in the left-right direction, and the ear portions can be moved more freely, so that excellent wearing feeling can be obtained.

(Note 6)

In the embodiment of reference 6, the plurality of small engaging portions include a first small engaging portion that straddles the outer end edge of the ear portion in the left-right direction and a second small engaging portion that does not reach the outer end edge, and the first small engaging portion and the second small engaging portion are arranged in the up-down direction.

According to the aspect of note 6, the first engaging portion straddling the outer edge of the hanger part in the left-right direction prevents the portion near the outer edge of the hanger part from being lifted up from the auxiliary material, and the second engaging portion does not reach the outer edge of the hanger part in the left-right direction, thereby improving the flexibility of the second engaging portion.

(Note 7)

In the embodiment of reference numeral 7, the pitch of the joint small portion formed at the end in the vertical direction is smaller than the pitch of the joint small portion formed at the center in the vertical direction.

When the ear hanging part is stretched substantially in the left-right direction when the mask is worn, a force is particularly easily applied to the upper end part and the lower end part in the up-down direction of the second joining part. Therefore, according to the aspect of the above note 7, the pitch of the small joining portions is set to be narrower at the end portions in the vertical direction of the second joining portion, rather than being set to be small as a whole, and the joining strength can be effectively improved.

This application claims priority to basic application No. 2020-130070, filed by the japanese patent office on 31/7/2020, and is hereby incorporated by reference in its entirety.

Description of the reference numerals

1. Gauze mask

2. First surface material

3. Second surface material

5. Stretchable film (stretchable member)

10. Mask body

15. Pleat

20. Ear hanging sheet

20a ear hanging part

21. Outer edge of hanger part in left and right direction

25. Handle knob

28. Separable joint

29. Opening(s)

30. Auxiliary material

31. Outer edge of auxiliary material in left-right direction

50. First joint part

60. 160, 260, 360, 460 second joint

65. 165, 265, 266, 365a, 365b, 366, 465 second engagement portion

Claims

1. A mask, comprising:

a mask body;

a pair of sheet-like ear portions; and

a sheet-like auxiliary material interposed between the mask body and the ear straps,

the ear straps and the auxiliary material are overlapped on one surface of the mask body at each end of the mask body in the left-right direction,

the outer edge of the ear hook part in the left-right direction is located inward of the outer edge of the mask body in the left-right direction and the outer edge of the auxiliary member in the left-right direction,

a first joining part where the mask body and the auxiliary material are joined in the thickness direction and a second joining part where the ear hook part and the auxiliary material are joined in the thickness direction are formed,

the second engaging portion reaches the outer edge of the ear portion in the left-right direction.

2. The mask of claim 1 wherein,

the second joint portion is formed so as to straddle the outer edge of the ear portion in the left-right direction.

3. The mask according to claim 1 or 2,

the second joint portion is formed by welding the ear portion and the auxiliary material.

4. The mask according to any one of claims 1 to 3, wherein,

the second engaging portion includes a plurality of engaging small portions formed separately in an up-down direction orthogonal to the left-right direction.

5. The mask according to claim 4, wherein,

the plurality of small joining portions are formed separately in the left-right direction.

6. The mask of claim 4 or 5 wherein,

the plurality of engaging small portions include a first engaging small portion crossing the outer end edge in the left-right direction of the ear portion and a second engaging small portion not reaching the outer end edge,

the first engaging small portion and the second engaging small portion are arranged in the up-down direction.

7. The mask according to any of claims 4 to 6,

the pitch of the joint small portions formed at the end portions in the vertical direction is smaller than the pitch of the joint small portions formed at the center in the vertical direction.