TW202208025A - Mask ear loop, mask, method for producing mask ear loop, and method for producing mask - Google Patents

Abstract

A mask ear loop according to the present invention is formed of a material including: a stretchable member; and a first surface sheet material and a second surface sheet material that are bonded to, with multiple bonding sections, both surfaces of the stretchable member in a state in which the stretchable member is stretched. The mask ear loop includes: a base section to be fixed to the mask body; an ear-back section to be positioned on the ear back of a wearer; an upper transition section extending from the base section toward the ear-back section on the upper side, and a lower transition section extending from the base section toward the ear-back section on the lower side. The number of the multiple bonding sections per unit area in the ear-back section is larger than the number of the multiple bonding sections per unit area in at least one of the upper transition section and the lower transition section.

Description

Earloop for mask, mask, method for producing earloop for mask, and method for producing mask

The present invention relates to an ear hook part for a mask, a mask, a method for manufacturing the ear hook part for a mask, and a method for manufacturing the mask.

As a structure of a mask to be worn on the face, it is known to include: a mask body that at least partially covers the wearer's face; and a pair of ear hooks that can be hung in order to hold the mask body in the wearing position A member on each ear of the wearer, which is respectively attached to the mask body.

A sheet-shaped ear-hook is known as an ear-hook used for a mask. For example, in the mask disclosed in Patent Document 1, both earloop portions are provided with a single-piece earloop piece, and the earloop pieces extend on the same plane in a state of being connected to each other by the connecting portion. In Patent Document 1, there is described a technique of forming the ear loop portion with a stretchable spunbond nonwoven fabric or the like.

[Prior Art Literature] (patent literature) Patent Document 1: Japanese Patent Laid-Open No. 5762803

[Problems to be Solved by Invention] As disclosed in Patent Document 1, a portion extending in the left-right direction of the face among the sheet-shaped ear hook portions is preferably easily stretched during a wearing operation. On the other hand, the portion of the earhook portion that is positioned behind the ear at the time of wearing (during wearing) is preferred because it can stably maintain a state of contact with the skin behind the ear without being stretched and deformed too much. Therefore, from the viewpoint of improving the ease of wearing and the feeling of wearing, it is desirable for the earhook portion to have different elongation characteristics or deformation characteristics of the sheet-like earhook portion depending on the location. However, there have been no previous studies in this area.

An aspect of the present invention developed in view of the above-mentioned circumstances has a problem to be solved to provide an ear loop portion for a mask that improves the ease of wearing and the feeling of wearing.

[Technical means to solve the problem] One aspect of the present invention is an earloop for a mask, which is formed of a material having a stretchable member, a first surface sheet, and a second surface sheet, and the first surface sheet and the second surface sheet are 2. The surface sheet is formed by being joined to both sides of the stretchable member by a plurality of joining portions in a state in which the stretchable member is stretched; Wherein, the ear hook part for the mask has: a base part fixed on the mask body, an ear back arrangement part located on the back of the wearer's ear, an upper side transition part extending from the base part to the ear back arrangement part on the upper side, and a lower side and a lower side transition portion extending from the base portion to the ear back arrangement portion; In addition, the number of the plurality of joint parts per unit area in the ear back arrangement part is greater than the number of the plurality of joint parts per unit area in at least one of the upper running part and the lower running part .

[effect] According to one aspect of the present invention, it is possible to provide an ear loop for a mask in which the ease of wearing and the feeling of wearing are improved.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in each figure, unless otherwise stated, the same code|symbol may be attached|subjected about the same or corresponding structure, and description may be abbreviate|omitted. In addition, the drawings are schematically shown in order to facilitate the understanding of the invention.

(Basic structure of mask) First, the basic structure about the mask in this form is demonstrated. The mask in this form may be a mask capable of covering the wearer's face, more specifically, a mask capable of covering at least the nose and mouth of the wearer. According to the mask of this aspect, the function of preventing foreign matter from reaching the face or the function of preventing the scattering of droplets generated from the wearer can be obtained, and it is also called a hygienic mask or a medical mask.

FIG. 1 shows a plan view of the mask 1 . Fig. 1 is a view of the mask 1 viewed from the outside, that is, from the side exposed to the outside without facing the face when worn. Moreover, FIG. 2 shows the plan view which looked at the mask 1 from the inside (face side). Furthermore, FIG. 3 shows a cross-sectional view taken along the line I-I in FIG. 1 .

As shown in FIG. 1, according to the mask 1 of the present form, the mask body 10 is provided with a mask body 10, which is arranged in front of the wearer's face when worn, and can mainly cover the wearer's nose and mouth; and a pair of ears The hanging parts 20a, 20a are combined with the mask body 10. The mask body 10 has: an up-down direction (vertical direction) D1, which corresponds to the up-down direction of the wearer's face when worn; and a left-right direction (horizontal direction) D2, which is orthogonal to the up-down direction D1. In the form of FIG. 1, although the mask body 10 has a rectangular plan view shape with long sides in the left-right direction D2, the plan view shape of the mask body 10 is not limited to the shape shown in the figure.

As shown in FIGS. 1 and 2, the mask body 10 has a gather structure 15 formed by a plurality of folds (gathers) arranged in a row in the up-down direction D1. The pleats of the gather structure 15 are formed by folding the sheet|seat which comprises the mask main body 10 on the folding line along the left-right direction D2. And the side part (end part of the left-right direction D2) of the mask main body 10 is joined and fixed by crimping etc. in the state in which the several folds were formed. Therefore, when using the mask 1, the folds of the pleated structure 15 are expanded in the up-down direction D1, whereby the center of the left-right direction D2 is bent in a manner protruding to the outer side of the mask 1, and can be transformed into a three-dimensional shape suitable for the face shape. The specific structure of the gather structure 15 is not particularly limited, and a well-known structure that forms the mask body may be used.

The mask body 10 may have a multilayer structure in which a plurality of layers are stacked. For example, a structure including at least three layers in which an outer layer and an inner layer sandwich an intermediate layer may be employed, and the intermediate layer may enhance the function of trapping foreign matter (dust, pollen, bacteria, and viruses). The layers constituting the mask body 10 are preferably fiber-containing layers including non-woven fabrics, fabrics, and knitted fabrics, and more preferably include non-woven fabrics. As the nonwoven fabric, a spunbond nonwoven fabric, a spunlace nonwoven fabric, a meltblown nonwoven fabric, a hot air nonwoven fabric, a point-bonded nonwoven fabric, and the like can be mentioned. Moreover, it is preferable to use the melt-blown nonwoven fabric obtained by containing fine fibers as an intermediate layer. Further, the fibers constituting the fiber-containing layer are preferably resin fibers, and examples of the resin type of the resin fibers include polyethylene, polypropylene, polyethylene terephthalate, nylon, and the like. The basis weight of the outer layer and the inner layer is 10-50 g/m ² , preferably 15-50 g/m ² . The basis weight of the intermediate layer having high foreign matter trapping properties is preferably 10 to 100 g/m ² , more preferably 15 to 50 g/m ² .

The pair of ear-hook portions 20a and 20a are each in a ring shape (or a closed band shape) in plan view, or may have a shape including a ring. For wearing, the earhook portion 20a can be hung on the ear so that the wearer's ear can enter the inner side of the ring of the earhook portion 20a, that is, the opening 29 in the center of the earhook portion 20a.

As shown in Figs. 1 and 2, the pair of earhook portions 20a, 20a may be formed as a single-piece earhook portion piece 20 that can be detachably coupled to each other at the center of the left-right direction D2, or may be formed It is a continuous ear hook piece 20 . Here, the term "single sheet" refers to a form consisting of one continuous sheet, and the "sheet" is a concept that can include a laminate formed by laminating a plurality of layers. The pair of ear-hook parts 20a and 20a are sheet-like, and when the ear-hook part 20a is hung on the ears, they can contact the back of the ear (or the back of the ear), that is, the skin and/or the back side of the ear. The back of the earlobe can reduce the load on the ear. Therefore, even wearing a mask for a long time can reduce pain and discomfort. Moreover, since the pair of earhook parts 20a and 20a is a single piece (constituted by the earhook part piece 20), since the pair of earhook parts 20a and 20a can be positioned simultaneously at the time of manufacture, manufacture of the mask is easy.

The ear-hook portion 20a is configured to be separated into a pair of ear-hook portions 20a, 20a by breaking it at a predetermined position when starting to use. More specifically, in the form of FIG. 1, a pair of ear-hook part 20a, 20a is connected by the connection part 28. The coupling form of the coupling portion 28 is not particularly limited, and it is preferable that the coupling portion 28 can be pulled and separated by the normal force of the user. For example, as shown in Figure 1, it can be formed as a perforated eyeliner. Furthermore, the joint portion 28 is formed by reducing the thickness of the sheet material or by other means to weaken the boundary between the pair of ear-hook portions 20a and 20a or to easily apply stress.

As shown in Fig. 1 to Fig. 3, a pair of ear-hook portions 20a, 20a or ear-hook portion sheets 20 of a single sheet shape are arranged on the mask body 10 in an overlapping manner. The earhook piece 20 may have a shape and size that does not protrude from the mask body 10 at least in the left-right direction D2 in a plan view. In this case, the length of the left-right direction D2 of the ear hook portion sheet 20 can be set to 70 to 95% with respect to the length of the left-right direction D2 of the mask 1. With such a structure, complicated steps such as folding or bending the earhook portion sheet 20 are not required during manufacture, and the mask body 10 and the earhook portion sheet 20 are overlapped and joined together, enabling continuous production of the mask. Furthermore, the length in the left-right direction D2 of one ear-hook portion 20a may be 60-90 mm, preferably 65-85 mm.

The pair of ear-hook parts 20a and 20a can be directly or indirectly connected to the side parts (ends in the left-right direction D2) of the mask body 10, respectively. That is, the part outside the left-right direction D2 of the pair of ear hook parts 20a and 20a is connected to the mask body 10, and the other parts are not connected to the mask body 10. When starting to use the mask 1 according to this aspect, before wearing the mask 1, the user releases the coupling of the coupling portion 28 between the pair of ear hook portions 20a, 20a, and separates the ear hook portions 20a, 20a from each other (also referred to as a separation operation), and open the ear hook parts 20a, 20a that are not joined to the mask body 10 to the side in the left-right direction D2 (also referred to as an unfolding operation).

(auxiliary material) Furthermore, as shown in Figs. 1 and 3, the pair of ear hook portions 20a and 20a can be coupled to both sides of the mask body 10 via sheet-shaped auxiliary materials 30 and 30, respectively. The ear hook portion 20a and the mask body 10 are coupled through the auxiliary material 30, whereby the mask 1 can be formed without the ear hook portion 20a and the mask body 10 being directly coupled. Thereby, the connection part of the earhook part 20a and the auxiliary material 30, and the connection part of the mask main body 10 and the auxiliary material 30 can be individually formed in an appropriate form. Moreover, it can avoid that a part of the area|region of the earhook part 20a is used for fixing with the mask main body 10. Thereby, compared with the case where the ear hook portion 20a is directly coupled to the mask body 10, the use of the auxiliary material 30 can make the ear hook portion 20a shake more freely relative to the mask body 10, and can more freely set when the ear hook portion The position of the ear hook portion 20a relative to the ear when the hook portion 20a is worn on the ear. In the form shown in FIGS. 1 to 3, the mask body 10 overlaps with the sheet-like auxiliary material 30, and is joined at the first side joint portion 50. Moreover, the sheet-shaped ear hook portion 20 a overlaps with the sheet-shaped auxiliary material 30 , and is joined to the second side portion joining portion 60 .

The auxiliary material 30 may be a sheet-like member extending across the entire vertical direction D1 of the mask 1 . The length (amplitude) of the left and right direction D2 of the auxiliary material 30 is different according to the overall size and structure of the mask 1, the size, shape, and material of the mask body 10 and the ear hook portion 20a, but preferably 15 to 35mm. The basis weight of the auxiliary material 30 may be 5˜100 g/m ² . Also, the thickness of the auxiliary material 30 may be 100 to 1000 μm.

The auxiliary material 30 may be formed of a material with no or low stretchability, or may be formed of a material having some degree of stretchability. The auxiliary material 30 may include, for example, a stretchable nonwoven fabric. In this case, the auxiliary material 30 preferably has stretchability at least in the left-right direction D2, but the stretchability of the auxiliary material 30 is preferably smaller than the stretchability of the ear hook portion 20a. Furthermore, the auxiliary material 30 may be formed of a material whose shape is irreversibly deformed when a force is applied.

The first side joint portion 50 and the second side joint portion 60 can be formed, for example, by applying pressure and/or heat to join opposing surfaces of members to each other, such as heat sealing, ultrasonic Welding, non-heated embossing, etc. Among them, heat sealing is preferable because it can be surely joined.

When the auxiliary material 30 is provided, the length in the left-right direction D2 of the ear-hook portion sheet 20 constituting the pair of ear-hook portions 20 a and 20 a is shorter than the length in the left-right direction D2 of the mask 1 . Thereby, the outer end 21 of the left and right direction D2 of the ear hook portion 20a and the outer end 11 of the left and right direction D2 of the mask body 10 can be staggered, and the auxiliary material 30 can be pasted on the mask body 10 which is not covered by the ear hook portion 20a. Near the end in the left-right direction D2.

(Separation/deployment of the earhook) When starting to use the mask 1, the user can pinch or hold the pair of ear hook portions 20a, 20a with their hands, respectively, and pull them in opposite directions from each other. Thereby, first, the coupling of the separable coupling portion 28 can be released. As long as the joint portion 28 is constituted by a perforated line formed along the boundary line between the pair of ear-hook parts 20a, 20a, the perforated line can be broken along the boundary line so that the two ear-hook parts 20a, 20a, 20a can be broken. 20a separation. Then, the user can open the pair of earhook parts 20a and 20a outward (indicated by arrows) in the left-right direction D2 as shown in FIG.

Fig. 4 shows a state in which the pair of ear hook portions 20a and 20a are respectively opened outward in the left-right direction D2 from the state shown in Fig. 1 . In addition, FIG. 5 shows a cross-sectional view taken along the line II-II in FIG. 4 . As shown in Fig. 4 and Fig. 5, once the pair of earhook portions 20a, 20a are opened, the earhook portions 20a, 20a are turned upside down, that is, the earhook portions 20a, 20a are originally in the state before the start of use The face facing the mask body 10 is exposed.

After the user holds the pair of ear hook portions 20a, 20a respectively and opens them outward in the left-right direction D2, the mask body 10 is placed on the wearer's face so that the face side of the mask body 10 can face the wearer's face. the wearer's face, and the ear-hook parts 20a, 20a are respectively hung on the wearer's ears.

In the state before the start of use (Fig. 1 to Fig. 3), a pair of earhook portions 20a, 20a (earhook portion pieces 20) in a single sheet shape are arranged on the mask body 10 so as to overlap. The pair of ear hooks 20a, 20a can be overlapped on any surface of the mask body 10, but in the form shown in the figure, it is preferable to overlap the outer surface of the mask body 10. Thereby, when the mask 1 is worn, the contact between the skin and the inner surface (face side surface) of the mask body 10 can be reduced, or there is little or no contact.

For example, when the user himself wears the mask 1, the mask 1 is placed on his face so that the inner surface of the mask body 10 faces his face, and the outer surface of the mask body 10 is pressed with one hand. One hand uses the other hand to release the coupling part 28 of the ear hook parts 20a, 20a, and one ear hook part 20a is hung on the ear. Then, after replacing the hand originally pressing the one side of the mask body 10 with the other hand, the other ear-hook portion 20a can be hung on the ear with the one hand.

Also, in a state where the outer side of the mask 1 is placed vertically upward (with the outer surface of the mask body 10 facing upward), the user holds the pair of ear hooks 20a and 20a with their hands and moves outward in the left-right direction D2. square open. Then, while still holding the pair of ear hooks 20a, 20a, the mask 1 can be moved to the face of the wearer other than oneself, and the mask body 10 can be placed at a desired position on the wearer's face without changing In the case of the holding method, the pair of ear-hook portions 20a and 20a are respectively hooked to the wearer's ears. Thereby, according to the mask 1 of this aspect, even when a mask is worn on the face of a person who is difficult to wear a mask by himself, such as a child or a patient, it can be used appropriately.

Furthermore, when holding the earhook portions 20a, 20a, the user can also hold the grip portions 25, 25 of the earhook portions 20a, 20a, which respectively protrude outward of the ring in a plan view. By holding the grip parts 25 and 25 and operating the ear hook parts 20a and 20a, the separation operation and the unfolding operation of the mask can be performed more hygienically. As shown in FIG. 1 , the gripping parts 25 and 25 protrude beyond the outer edge of the mask body 10 , especially the lower end of the mask body 10 .

Further, marks 18 that can distinguish the front and back (outer and inner surfaces) of the mask body 10 can also be formed on the mask body 10 by embossing, printing, sewing, etc. The form of the mark 18 is not particularly limited as long as the user can visually recognize it. As shown in FIGS. 1 and 2, the marks 18 may be letters, numbers, symbols, figures, signs, or the like. If the mark 18 is a character, the user can recognize the side where the character can be read correctly as the outer surface.

(Earhook and earhook piece) Fig. 6(a) is a partially enlarged cross-sectional view of the material constituting the earhook portion 20a or the earhook portion sheet 20, which is cut along the left-right direction D2. As shown in Fig. 6(a), the material constituting the earhook portion 20a or the earhook portion sheet 20 may be a sheet formed by laminating a plurality of layers. In the example of FIG. 6( a ), the material includes a stretchable member (stretchable film) 5 , and the first surface is arranged on one side of the stretchable member (stretchable film) 5 , that is, the first surface In the sheet 2, the second surface sheet 3 is arranged on the second surface, which is the surface opposite to the first surface. Furthermore, a stretchable member is a member that can be stretched in at least one direction by applying a tensile force to it, and can return to its original length by releasing the applied tensile force (in a state in which no external force is applied). (natural length) properties.

As shown in Fig. 6(a), in this example, a stretchable film 5 can be used as a stretchable member. As a material of the stretchable film 5, polyolefins, such as polyethylene and polypropylene; polyurethane, etc. are mentioned. The stretchability of the stretchable film 5 is preferably such that the maximum elongation is 3.5 to 4.0 times the natural length in the measurement by a tensile tester. In addition, the stretchable film 5 may have a function of allowing moisture to pass through.

Instead of the stretchable film, a linear stretchable aggregate in which linear stretchable bodies (or linear elastic bodies) such as a plurality of rubber threads are arranged in parallel may be provided. However, if it is a stretchable member in the form of a film, that is, in the form of a film having a substantially uniform thickness and a flat molded body, high stretchability or elongation can be obtained and the handling during production is easy. good.

The material shown in Fig. 6(a), more specifically, is obtained by combining the first surface sheet and the second surface sheet with a plurality of bonding portions 40, 40, . The material is bonded to both sides (the first side and the second side) of the stretchable film. In order to obtain the material shown in Fig. 6(a), first, as shown in Fig. 6(b), a stretching external force T is applied to the stretchable film 5 in advance to stretch the stretchable film 5 from its natural length, In this state, the 1st surface sheet 2 and the 2nd surface sheet 3 in the natural state which are not shrunk are intermittently joined by a plurality of joining parts 40, 40, . . . Then, the stretchable film 5 is loosened by releasing the external stretching force T, and the material in the natural state shown in Fig. 6(a) can be obtained.

The state of the material shown in Fig. 6(a) is a natural state, that is, a state in which no external force is applied (a state having a natural length). In this state, wrinkles (folds) are formed on the first surface sheet 2 and the second surface sheet 3 that were originally flat in the state where the external tensile force T is applied as shown in FIG. 6(b), The cross-section was observed to be wavy (Fig. 6(a)). This is because when the length of the stretchable film 5 returns to its natural length, the portion other than the portion joined by the plurality of joining portions 40 , 40 , .

In this way, a plurality of folds are formed on the surface of the earhook portion 20a (the earhook portion sheet 20). Thereby, when the surface of the earhook portion 20a comes into contact with the skin, the material of the earhook portion 20a does not contact the entire surface of the skin, but a space is formed between the earhook portion 20a and the skin, so that the tightness can be reduced. The feeling of sticking to the skin can be improved and the wearing feeling can be improved. In addition, when forming the earhook part 20a (earhook part sheet 20) from this material, the expansion-contraction direction (extension direction) of the stretchable film 5 shall be along the left-right direction D2 of a mask. Thereby, a plurality of wrinkles extending substantially along the vertical direction D1 of the mask 1 are formed on the surface of the earhook portion 20a (the earhook portion sheet 20).

The first surface sheet 2 and the second surface sheet 3 may be the same or different. Moreover, it is preferable that both the 1st surface sheet 2 and the 2nd surface sheet 3 are a fibrous structure. Examples of the fiber structure include non-woven fabrics, woven fabrics, knitted fabrics, and the like. Among them, non-woven fabrics are preferable because they have good skin feel and air permeability and contribute to improvement of wearing feeling. As the nonwoven fabric, hot air nonwoven fabric, spunbond nonwoven fabric, spunlace nonwoven fabric, needle punched nonwoven fabric, chemical bonded nonwoven fabric, and the like can be mentioned. Among them, a spunbond nonwoven fabric that does not fluff and has high strength, a hot air nonwoven fabric having flexibility, and the like can be appropriately selected. In addition, the fibers contained in the nonwoven fabric are preferably resin fibers, and examples of the resin type of the resin fibers include polyethylene, polypropylene, polyethylene terephthalate, nylon, and the like. When the first surface sheet 2 or the second surface sheet 3 is a non-woven fabric, the basis weight of the non-woven fabric may be 5 to 50 g/m ² , particularly preferably 8 to 25 g/m ² .

If the earhook portion 20a of this embodiment is made of a material in which both sides of the stretchable film 5 are covered with the first surface sheet 2 and the second surface sheet 3, the stretchable film 5 can be avoided when wearing a mask. Direct contact with the skin, and can improve the wearing feeling.

The above-mentioned joints 40, 40, . . . can be formed by welding means such as ultrasonic welding and heat sealing, or by using an adhesive. good. In the present embodiment, the first surface sheet 2, the stretchable film 5, and the second surface sheet 3 may all contain or be formed of thermoplastic resin, so that the joint parts (welding parts) 40, 40, . . . , the three layers are welded together and integrated with each other. In addition, depending on the formation conditions of the welded portion, through-holes may be formed in the welded portion. In this case, the air permeability of the earhook portion 20a (the earhook portion sheet 20) can be improved.

Fig. 7 shows a plan view of the earhook parts 20a, 20a (earhook part piece 20) according to the present embodiment. As shown in FIG. 7, the ear-hook part 20a may have a ring shape (or a closed band shape) in plan view, or may have a shape including a ring. Moreover, the ear hook portion 20a may also have: a base portion 22, which is fixed on the mask body 10 (in the form of FIG. 1, it is connected to the mask body 10 via an auxiliary material); an ear back arrangement portion 24, which is located on the mask body 10 when wearing the back of the ear of the person; the upper running part 23, which is on the upper side of the earhook part 20a and which runs from the base part 22 to the back of the ear arrangement part 24; 22 moves to the back-of-the-ear arrangement portion 24 . The base portion 22 and the ear back arrangement portion 24 extend substantially along the vertical direction D1 and face each other. In addition, the upper running portion 23 and the lower running portion 26 extend substantially along the left-right direction D2 and face each other.

In the example shown in FIG. 7, the shape of the ring included in the ear loop portion (earband) 20a is substantially a rectangular ring shape, but it may be substantially circular or elliptical. The earhook portion 20a may be a place with three large changes along the circumferential direction of the ring (that is, a triangular ring shape), or a shape with five or more large changes along the circumferential direction of the ring. The place of change (that is, a polygonal ring other than a rectangular ring).

The earhook parts 20a, 20a (earhook part sheet 20) are formed of the above-mentioned material, that is, the material has the elastic member 5, the first surface sheet 2 and the second surface sheet 3, and the first surface The sheet 2 and the second surface sheet 3 are joined to both sides of the stretchable member 5 by a plurality of joining portions 40, 40, . . . in a state in which the stretchable member 5 is stretched. However, as shown in FIG. 7, the distribution of the plurality of joint portions 40, 40, . . . is not uniform. More specifically, the ear hook portions 20a and 20a have: sparsely distributed regions R1 _A , R1 _B (which may be collectively referred to as RI) in which the joint portions 41 , 41 , . . . are sparsely distributed; and the joint portion 42 ,42,…Densely distributed region R2 that is finely distributed. Furthermore, the sparsely distributed regions R1 _A and R1 _B preferably have the same structure.

Fig. 8(a) shows a partial enlarged plan view of the sparsely distributed regions R1 _A , R1 _B. In addition, FIG. 8(b) shows a partial enlarged plan view of the densely distributed region R2. As shown in Figs. 8(a) and (b), the density of the junctions 42, 42, . . . formed in the densely distributed region R2, that is, the number N ₂ per unit area, is higher than that in the sparsely distributed region _R1A , the density of the joints 41, 41, . . . formed in R1 _B , that is, the number N ₁ per unit area, is large. In addition, the number of objects per unit area mentioned above is the number of objects measured in the maximum stretched state of the earhook portion 20a or the earhook portion sheet 20 . The maximum stretched state refers to a state in which the earhook portion 20a or the earhook portion sheet 20 is extended to make the topsheet to have a natural length, that is, a state in which the wrinkle of the topsheet is substantially not observed.

As shown in FIG. 7 , the dorsal arrangement portion 24 may have a densely distributed region R2 , the upper running portion 23 may have an upper sparsely distributed region R1 _A , and the lower running portion 26 may have a lower sparsely distributed region R1 _B . Further, the back-of-the-ear arrangement portion 24 may be composed of _a densely distributed region R2, the upper running portion 23 may be composed of an upper sparsely distributed region R1A, and the lower running portion 26 may be composed of a lower sparsely distributed region _R1B . As a result, the number of joint parts per unit area in the ear back arrangement part 24 is larger than the number of joint parts per unit area in the upper running part 23 and also more than the number per unit area in the lower running part 26 . The number of joints is large.

Furthermore, in the example shown in FIG. 7, the base portion 22 also has the densely distributed region R2, but the base portion 22 may not necessarily have the densely distributed region R2. However, when both the base portion 22 and the ear back arrangement portion 24 have the densely distributed regions R2, it is preferable because the manufacture of the ear loop portion sheet 20 is easy. More specifically, the belt-shaped densely distributed region R2 can be continuously formed along the conveyance direction (corresponding to the left-right direction D2 ) of the earloop sheet tape 20A serving as the earloop sheet 20 (see FIGS. 9 and 10 ). Figure, as described later). In addition, the sparsely distributed regions R1 _A and R1 _B are also formed on both sides of the belt-shaped densely distributed region R2 in a continuous belt shape along the conveyance direction, respectively.

In the back of the ear arrangement portion 24, the fact that the joint portion is formed more densely means that in the back of the ear arrangement portion 24, the first surface sheet 2, the elastic member 5, and the second surface sheet 3 are fixed together. More per unit area. As a result, the back-of-the-ear arrangement portion 24 has relatively high resistance to stretching and is not easily stretched. Since the back of the ear arrangement portion 24 is usually worn on the back of the ear, that is, on the back of the skin and/or the earlobe, which is behind the ear, the back of the ear arrangement portion 24 itself is greatly elongated and deformed, and may be caused by contact with the ear. Discomfort caused by skin friction. However, according to the above-mentioned structure of this aspect, such discomfort can also be reduced.

Furthermore, by forming the joint portion more densely, the first surface sheet 2, the elastic member 5, and the second surface sheet 3 are less likely to be peeled off, and the strength of the ear-back arrangement portion 24 is also improved. Thereby, even if a relatively large force is applied to the vicinity of the joint portion 28 when the above-described separation operation of the pair of ear hook portions 20a and 20a is performed, the structure of the material is not easily damaged.

On the other hand, when wearing, the joints are formed more sparsely in the upper running portion 23 and the lower running portion 26 arranged along the left-right direction D2 of the face, which means that the first surface sheet 2, the stretchable film 5 and the The place where the 2nd surface sheet 3 is fixed together becomes small per unit area. As a result, the upper running portion 23 and the lower running portion 26 have relatively low resistance to stretching and are easily stretched. Therefore, during the wearing operation, the upper running portion 23 and the lower running portion 26 can be stretched in the left-right direction D2 with a relatively small force. The operation of hooking the ear hook portions 20a, 20a to the ear can be performed smoothly.

In this way, the density of the joints 40 , 40 , . . . is changed and the elongation characteristics are changed according to the position of the ear hook portion 20 a . According to the above configuration, it is possible to reduce the discomfort during wearing, improve the wearing feeling, and the wearing action. also easier.

Furthermore, as in the present embodiment, when the earhook portion sheet 20 is cut into a predetermined shape from a material in which the stretchable film 5 is sandwiched between the first surface sheet 2 and the second surface sheet 3, the cutting At the breaking position, the edge portion of the stretchable film 5 is more easily drawn inward than the edge portion of the first surface sheet 2 and the edge portion of the second surface sheet 3 due to the compressive stress acting in the surface direction. In this case, since the 1st surface sheet 2 and the 2nd surface sheet 3 protrude from the edge, it becomes easy to peel from the edge. In particular, in the center of the earhook portion sheet 20 in the left-right direction D2, that is, in the back-of-the-ear arrangement portion 24, the edge is likely to touch the skin, so the possibility of peeling is higher than other parts of the earhook portion 20a. As a result, the back-of-the-ear arrangement portion 24 has the densely-distributed regions R2 having a large number of the joint portions 40, 40, . . . per unit area, so that the stretching of the stretchable film 5 as described above is less likely to occur, and the back-of-the-ear arrangement portion 24 is less likely to be pulled in. damage. In addition, the state where the first topsheet 2 and the second topsheet 3 protrude from the edge may impair the appearance, but in the easily conspicuous ear back arrangement portion 24, if the pulling-in of the stretchable film 5 can be suppressed, the improvement can be improved. The appearance of the ear hook portions 20a and 20a can further improve the overall appearance of the mask 1 .

Furthermore, the number N ₂ of the joints 42, 42, . . . per unit area in the densely distributed region R2 is preferably 2 to 50 pieces/cm ² , more preferably 8 to 34 pieces/cm ² . In addition, the number N ₁ of the joints 41, 41, . . . per unit area in the sparsely distributed region R1 is preferably 1 to 20 pieces/cm ² , more preferably 5 to 15 pieces/cm ² . Further, the ratio of the number N ₂ per unit area of the joints 42, 42, . . . in the densely distributed region R2 to the number N ₁ per unit area of the joints 41, 41, . . in the sparsely distributed region R1 (N ₂ /N ₁ ), preferably 1.5 to 2.5, more preferably 1.75 to 2.25.

Further, as shown in FIGS. 8( a ) and ( b ), the area S ₂ of each junction 42 in the densely distributed region R2 may be smaller than the area S ₁ of each junction 41 in the sparsely distributed region R1 . Furthermore, since the back-of-the-ear arrangement portion 24 has the densely distributed region R2 , the upper-side transition portion 23 has the upper-side sparsely-distributed region R1 _A , and the lower-side transition portion 26 has the lower-side sparsely-distributed region R1 _B , each of the back-of-the-ear arrangement portions 24 is joined. The area of the part becomes smaller than the area of each joining part in the upper running part 23 and also smaller than the area of each joining part in the lower running part 26 .

Thus, the area S2 of each joint portion 42 in the _densely distributed region R2 is small, whereby deformation that warps or bends the entire densely distributed region R2 can be performed more freely. Furthermore, the back-of-the-ear arrangement portion 24 has the densely distributed region R2, whereby the back-of-the-ear arrangement portion 24 can be more easily deformed to better fit the shape of the portion behind the user's ear and/or the shape of the ear. Also, if the area of each joint portion is too large, the user will feel hard and uncomfortable when the back-of-the-ear arrangement portion 24 touches the skin. Therefore, the back of the ear which is pressed on the back side of the ear and/or the back side of the ear is used to reduce the pressure on the back of the ear. The area of the area S ₂ of each joint portion 42 in the arrangement portion 24 can reduce discomfort and discomfort.

Furthermore, the fact that the area of the joint portion is small means that the perimeter per unit area of the joint portion is long. When a force to peel off the first surface sheet 2, the elastic member 5, and the second surface sheet 3 is applied to each other, the starting point of peeling is at the joint part which is particularly strongly joined together among the joint parts. Since the peripheral length per unit area of the joint portion is long, the resistance to initial peeling among the first surface sheet 2, the elastic member 5, and the second surface sheet 3 increases. Thereby, the ear back arrangement portion 24 including the densely distributed region R2 can be less easily peeled off and the structure is stronger.

The area S ₂ of each joint portion 42 in the densely distributed region R2 is preferably 0.02˜0.72 mm ² , more preferably 0.08˜0.45 mm ² . In addition, the area S ₁ of each joint portion 41 in the sparsely distributed region R1 is preferably 0.2 to 0.8 mm ² , more preferably 0.3 to 0.6 mm ² . Further, the ratio (S ₂ /S ₁ ) of the area S ₂ of each joint portion 42 in the densely distributed region R2 to the area S ₁ of each joint portion 41 in the sparsely distributed region R1 is preferably 0.1˜0.9, more It is preferably 0.25 to 0.75.

Further, as shown in FIGS. 8( a ) and ( b ), the pitch p _x2 in the left-right direction D2 of the junctions 42 , 42 , . . . in the densely distributed region R2 may be smaller than that of the junctions in the sparsely distributed region R1 The pitch p _x1 in the left-right direction D2 of 41, 41, . . . is small. Furthermore, since the back-of-the-ear arrangement portion 24 has the densely distributed region R2 , the upper-side transition portion 23 has the upper-side sparsely-distributed region R1 _A , and the lower-side transition portion 26 has the lower-side sparsely-distributed region R1 _B , the joint portion in the ear-back arrangement portion 24 has The pitch in the left-right direction D2 of the upper running part 23 may be smaller than the pitch in the left-right direction D2 of the joint part in the upper running part 23 , and also smaller than the pitch in the lateral direction D2 of the joint part in the lower running part 26 .

When the pitch of the left-right direction D2 of the joining parts becomes small, the space|interval at which the 1st surface sheet 2, the elastic film 5, and the 2nd surface sheet 3 are fixed becomes small in the left-right direction D2. The ear-hook portions 20a and 20a (the ear-hook portion pieces 20) are mainly elongated in the left-right direction D2, and therefore, depending on the pitch in the left-right direction D2, the ease of extension of the ear-back arrangement portion 24 can be improved compared with that of the upper moving portion 23 and the lower portion. Since the extension easiness of the side running portion 26 is further different, the wearing feeling at the time of wearing can be improved, and the effect of making the wearing operation easier can be improved.

In addition, the pitch p _x2 in the left-right direction D2 of the joint parts 42, 42, ... in the densely distributed region R2 may be compared with the pitch in the left-right direction D2 of the joint parts 41, 41, ... in the sparsely distributed region R1. p _{x1 is} small. In addition, the pitch in the left-right direction D2 of the joint part in the ear back arrangement part 24 is smaller than the pitch in the left-right direction D2 of the joint part in the upper running part 23 , and is also smaller than the left-right direction of the joint part in the lower running part 26 . The pitch of D2 is small.

The pitch p _x2 in the left-right direction D2 of the joint portion 42 in the densely distributed region R2 is preferably 0.3˜13.5 mm, more preferably 1.25˜7.5 mm. Further, the pitch p _x1 in the left-right direction D2 of the joint portion 41 in the sparsely distributed region R1 is preferably 3 to 15 mm, more preferably 5 to 10 mm. Further, the ratio (p _x2 /p _x1 ) of the pitch p _x2 in the left-right direction D2 of the joint portion 42 in the densely distributed region R2 to the pitch p _x1 in the left-right direction D2 of the joint portion 41 in the sparsely distributed region R1, Preferably it is 0.1~0.9, more preferably 0.25~0.75. In addition, the above-mentioned pitch is a pitch measured in the state of the maximum extension of the earhook part 20a or the earhook part piece 20.

In addition, the pitch _py2 in the vertical direction D1 of the joint parts 42, 42, ... in the densely distributed region R2 may be compared with the pitch in the vertical direction D1 of the joint parts 41, 41, ... in the sparsely distributed region R1. p _y1 is small, it can also be larger or to the same extent. However, the pitch p _y2 in the vertical direction D1 of the joints 42, 42, ... in the densely distributed region R2 is smaller than the pitch p in the vertical direction D1 of the joints 41, 41, ... in the sparsely distributed region R1 _{When y1} is small, it is preferable from the viewpoint that the joint portions 42, 42, . . . in the dense distribution region R2 can be formed more densely.

As shown in FIGS. 8( a ) and 8 ( b ), the arrangement of the joint portions 40 , 40 , . . . in a plan view is preferably a staggered shape, but may be a lattice shape. In addition, either a non-staggered or a lattice-like arrangement may be used. For example, as shown in FIG. 8( c ), the rows of junctions arranged along the left-right direction D2 are arranged side by side in the up-down direction D1, and the adjacent rows may be shifted by a ratio little by little in the left-right direction D2 The distance in the left-right direction D2 is smaller than 1/2 of the pitch p _x2 .

Further, the shape of the joint portion 40 may be circular (Fig. 8(a)) or elliptical (Fig. 8(b) and Fig. 8), whether in the sparsely distributed region R1 or the densely distributed region R2 (c)), other shapes such as polygons are also possible. In addition, as shown in FIGS. 8(b) and 8(c), the shape of the junction 41 of the sparsely distributed region R1 (R1 _A , R1 _B ) and the shape of the junction 42 of the densely distributed region R2 may be different. When the shape of the joint portion 42 of the densely distributed region R2 is an ellipse having a long axis in the vertical direction D1, the length of the joint portion 42 in the left-right direction D2 can be shortened, so that the interval between the wrinkles formed on the material is narrowed and the Since the height of wrinkles can be further reduced, the appearance can be improved.

In addition, the total area of the plurality of joint portions 40, 40, . . . can be set to 1 to 20% of the area of the earhook portions 20a, 20a (the earhook portion sheet 20). In addition, the ratio of the area of the plurality of joint portions 40 , 40 , . . . is a value measured in the maximum stretched state of the ear hook portion 20 a or the ear hook portion sheet 20 .

(manufacturing of masks) FIG. 9 shows the schematic diagram of the mask manufacturing apparatus 300. This mask manufacturing apparatus 300 is provided with the mask earhook part manufacturing device 100 upstream of the mask, and then is provided with a mask member assembly device 200 that combines the manufactured mask earhook part with other members of the mask.

The ear loop part manufacturing apparatus 100 for masks includes: a stretchable film tape supply means 123 for supplying a stretchable film tape (stretchable member tape) 5A for forming the stretchable film 5; and a first surface sheet tape supply means 121 , which supplies the first surface sheet tape 2A for forming the first surface sheet 2 ; and the second surface sheet tape supply means 122 which supplies the second surface sheet for forming the second surface sheet 3 With 3A. The stretchable film tape 5A, the first topsheet tape 2A, and the second topsheet tape 3A, which are elongated materials, are supplied from each supply means, and then the first topsheet tape 2A is superimposed on the stretchable film tape. The multilayer structure 6A is formed by overlapping the second surface sheet tape 3A on one surface (first surface) of 5A on the other surface (second surface) of the stretchable film tape 5A. The multilayer structure 6A is conveyed in the conveyance direction Dt.

Here, the stretchable film tape 5A is conveyed in a state of being stretched in the conveying direction Dt, that is, in a state where a tensile force (tensile force) is applied in the conveying direction Dt. The degree of elongation of the stretchable film tape 5A is controlled by the unwinding speed of the stretchable film tape supply means 123 and the conveying means (not shown). The stretchable film tape 5A is preferably stretched so as to be 1.5 to 4 times the natural length, for example, and more preferably stretched so as to be 2 to 3 times the natural length. On the other hand, the 1st surface sheet tape 2A and the 2nd surface sheet tape 3A are conveyed in the state which has a natural length (it is not stretched). Therefore, the surfaces of the first surface sheet tape 2A and the second surface sheet tape 3A laminated on the respective surfaces of the stretchable film tape 5A are in a wrinkle-free state.

Next, the above-mentioned multilayer structure 6A is fed to the joining means 140 and spreads between the stretchable film tape 5A and the first surface sheet tape 2A and between the stretchable film tape 5A and the second surface sheet tape 3A. The multilayer structure 6A forms a discontinuous joint portion, that is, a welded portion as a whole. The joining means 140 is preferably an ultrasonic welding means, but other means such as fusion may be used. In the joining means 140, the layers of the multilayer structure 6A are joined by a plurality of discontinuous joining portions, whereby the layered body 8A can be obtained.

Figure 9 also shows an enlarged cross-sectional view of part III. Between the stretchable film tape 5A and the first topsheet tape 2A, and between the stretchable film tape 5A and the second topsheet tape 3A, a plurality of junctions 40, 40, . . . are intermittently formed, respectively. At this time, as described with reference to FIGS. 7 and 8 , the obtained earhook portions 20a, 20a (earhook portion pieces 20) are formed with joints 40, 40, . . . having different degrees of density. Area (refer to Figure 10 and will be described later)

Further, the laminated body 8A is fed to the relaxation means 160 . In the relaxation means 160, the tension in the conveyance direction Dt originally applied to the stretchable film tape 5A is relaxed. In the relaxation means 160, the degree to which the tension is relieved is not limited, but it is preferable to make the stretchable film tape 5A return to its natural length. By relaxing the stretchable film tape 5A, the stretchable film tape 5A shrinks. Here, the first surface sheet tape 2A, the stretchable film tape 5A, and the second surface sheet tape 3A are joined by the joining portions 40, 40, . . . and are fixed at the positions of the joining portions. Therefore, when the stretchable film tape 5A is contracted and its length is shortened, the parts of the first topsheet 2 and the second topsheet 3 that are not joined by the joined parts 40, 40, ... relax without following the stretchable film tape 5A. And raised from the surface (see also Fig. 6). Therefore, many small folds extending in the direction orthogonal to the conveyance direction Dt are formed in the first surface sheet tape 2A and the second surface sheet tape 3A. In addition, in the state in which folds were formed in the 1st surface sheet tape 2A and the 2nd surface sheet tape 3A, the force to return to the original length does not generate|occur|produce, or almost does not generate|occur|produce.

FIG. 9 also shows an enlarged cross-sectional view of part IV. As shown in the figure, in the earloop portion sheet tape 20A, the stretchable film tape 5A is flat, but the first surface sheet tape 2A and the second surface sheet tape 3A are relaxed to form wrinkles. In addition, the ear loop portion sheet tape 20A is formed with unevenness that is continuous along the conveyance direction Dt when the first surface sheet tape 2A and the second surface sheet tape 3A are cut along the conveyance direction Dt and the cross section is observed.

Then, the earloop portion sheet tape 20A is fed to the punching means 180 . In the punching means 180, the earloop portion sheet tape 20A is punched out by a punching die so that the shape of each earloop portion sheet 20 can be obtained. In short, by the punching means 180, a plurality of ear loop pieces 20, 20, . . . can be obtained.

As described above, the method of manufacturing the earloop portion sheet 20 includes the step of moving the stretchable film tape 5A having the first surface and the second surface opposite to the first surface in a predetermined direction (conveying direction Dt) In the stretched state, the first topsheet tape 2A and the second topsheet tape 3A are respectively arranged on both sides of the stretchable film tape 5A, and the first topsheet tape 2A, the stretchable film tape 2A, and the The flexible film tape 5A and the second surface sheet tape 3A are joined to obtain a layered body 8A, the layered body 8A is shrunk in a predetermined direction (conveying direction Dt) and cut to form a plurality of earhook pieces 20. 20 constitutes a pair of ear hooks that can be detachably combined with each other.

The earloop pieces 20 , 20 , . . . are fed to the mask member assembly device 200 . In the mask member assembly device 200 , the auxiliary material tape 30A is arranged on one of the surfaces of the earloop portion sheet 20 . The mask member assembly device 200 includes a mask body tape supply means 221 that supplies the mask body tape 10A for forming the mask body. The mask main body tape supply means 221 supplies the mask main body tape 10A to the side opposite to the side on which the auxiliary material tape 30A of the earloop portion sheet 20 is arranged. In addition, in the example of FIG. 10, although the auxiliary material tape 30A is arrange|positioned at the outermost side, you may arrange|position between the earhook part sheet 20 and the mask main body tape 10A.

After combining the ear looping portion sheet 20, the auxiliary material tape 30A and the mask body tape 10A, the joining and cutting portion 240 is joined by heat sealing or the like at a predetermined position to form the above-mentioned first side portion joining portion 50. and the second side joint portion 60 (Fig. 1 and Fig. 3, etc.). Moreover, cutting is performed after joining or cutting is performed simultaneously with joining. Thereby, each mask 1 can be obtained.

FIG. 10 schematically shows the manufacturing process in the ear hook part manufacturing apparatus 100 for masks and the mask member assembly apparatus 200 in a plan view. As shown in FIG. 10 , the earloop portion sheet tape 20A obtained through the joining means 140 and the relaxation means 160 is formed with areas where the density of the joining portions 40 , 40 , . Distribution area R1 _A , R1 _B and dense distribution area R2. The sparsely distributed regions R1 _A , R1 _B and the densely distributed region R2 are adjacent to each other in the direction orthogonal to the conveyance direction Dt (the width direction of the ear hook portion sheet tape 20A) to form a belt shape. Using the punching means 180 , the earhook portion sheet tape 20A having the sparsely distributed regions R1 _A , R1 _B and the densely distributed region R2 is punched out to obtain the ear loop portion sheet 20 . In this way, in the ear loop portion sheet tape 20A, the sparsely distributed regions _R1A , _R1B and the densely distributed regions R2 that are continuous along the conveyance direction Dt are formed adjacent to the direction orthogonal to the conveyance direction Dt, thereby, Without changing the size setting of the joining means 140 , the density of the joining parts 40 can be changed by using the ear back arrangement part 24 , the upper running part 23 , and the lower running part 26 of the earhook part 20 a to be obtained.

The obtained earhook part sheet 20 is separated and further conveyed, and then one auxiliary material tape 30A is joined to the side part of the earhook part. Furthermore, after joining this joint to the mask main body tape 10A, the auxiliary material tape 30A and the mask main body tape 10A are cut|disconnected, and the individual mask 1 is formed.

Hereinafter, specific aspects of the present invention will be added.

(Supplement 1) The aspect of Supplementary Note 1 is an ear loop portion for a mask, which is formed of a material having a stretchable member, a first surface sheet, and a second surface sheet, and the first surface sheet and the The second surface sheet is formed by being joined to both sides of the stretchable member by a plurality of joining portions in a state in which the stretchable member is stretched; Wherein, the ear hook part for the mask has: a base part fixed on the mask body, an ear back arrangement part located on the back of the wearer's ear, an upper side transition part extending from the base part to the ear back arrangement part on the upper side, and a lower side and a lower side transition portion extending from the base portion to the ear back arrangement portion; In addition, the number of the plurality of joint parts per unit area in the ear back arrangement part is greater than the number of the plurality of joint parts per unit area in at least one of the upper running part and the lower running part .

According to the aspect of the above-mentioned appendix 1, the ear loop portion for a mask is formed of a material having a stretchable member, a first surface sheet, and a second surface sheet, and the first surface sheet and the The second surface sheet is formed by being joined to both sides of the stretchable member by a plurality of joining portions in a state in which the stretchable member is stretched. Since such a material can realize desired stretchability by adjusting the degree of elongation of the stretchable member at the time of material production, it is possible to obtain an ear hook portion having high stretchability. In addition, the above-mentioned materials are in a state in which many small wrinkles are aggregated on the first surface sheet and the second surface sheet in a natural state, so that they can be in discontinuous contact with the skin at a microscopic level, so the skin feels comfortable. good.

Further, in the present aspect, the joint portion in the back-of-the-ear arrangement portion is formed more densely. That is, since the place where the first surface sheet, the elastic member, and the second surface sheet are fixed together becomes larger per unit area, the back-of-ear arrangement portion has relatively high resistance to stretching and is not easily stretched. Since the back-of-the-ear arrangement is usually worn on the back of the ear, that is, on the back of the skin and/or the earlobe behind the ear, the back-of-the-ear arrangement itself is greatly elongated and deformed, and may be caused by contact with the skin. Discomfort caused by friction. However, according to this aspect, such discomfort can also be reduced. On the other hand, at the time of wearing, the joint points are formed more sparsely in the upper transition portion and/or the lower transition portion arranged along the left-right direction of the face. That is, the place where the first surface sheet, the elastic member, and the second surface sheet are fixed together is less per unit area, so the resistance of the upper running part and the lower running part to the stretching is relatively small, and it becomes easy. stretched. Therefore, the wearing operation can be performed smoothly. In this way, according to this aspect, it is possible to reduce the discomfort during wearing and improve the wearing feeling, and at the same time, the wearing action is also easy.

(Supplement 2) In the aspect of Supplementary Note 2, the area of each of the plurality of junctions in the back of the ear arrangement portion is larger than the area of each of the plurality of junctions in at least one of the upper transition portion and the lower transition portion Small.

According to the aspect of Supplementary Note 2 above, the area of each of the plurality of junctions (the area per junction) becomes smaller in the back-of-the-ear arrangement, so that the perimeter per unit area of the junction becomes longer. When the force to peel off each other is applied to the first surface sheet, the elastic member, and the second surface sheet, since the starting point of peeling is the peripheral edge in the joint portion, the peripheral length per unit area of the joint portion is used. When the length is long, the resistance to initial peeling among the first surface sheet, the elastic member, and the second surface sheet increases. Thereby, according to this aspect, the back-of-the-ear arrangement portion can be less easily peeled off, and the structure can be stronger. In addition, the area of each joint in the behind-the-ear arrangement portion is reduced, thereby making it easier to deform the entire back-of-the-ear arrangement portion by warping or bending, so that the back-of-the-ear arrangement portion can be naturally deformed to be more suitable for use. The shape of the part more posterior to the person's ear and/or the shape of the ear.

(Supplement 3) In the aspect of Supplementary Note 3, the pitch in the left-right direction of the plurality of joint portions in the ear-back arrangement portion is greater than the left and right pitches of the plurality of joint portions in at least one of the upper travel portion and the lower travel portion. The pitch of the directions is small.

According to the aspect of the above-mentioned appendix 3, the pitch in the left-right direction of the plurality of joint portions in the ear-back arrangement portion becomes smaller, and the pitch in the left-right direction of the plurality of joint portions in the upper travel portion and/or the lower travel portion distance becomes larger. Thereby, the upper running part and/or the lower running part can be stretched more easily in the left-right direction than the ear-back arrangement part, and the operation of stretching the ear-hook part in the left-right direction can be smoother during the wearing operation. .

(Supplement 4) In the aspect concerning Supplementary Note 4, the said junction part is a fusion|melting part which the said elastic member, the said 1st surface sheet, and the said 2nd surface sheet are fused together.

According to the aspect of the above-mentioned appendix 4, since the joining portion is a welded portion, the first surface sheet, the elastic member, and the second surface sheet can be joined more reliably and integrally.

(Supplement 5) In the aspect concerning Supplementary Note 5, the said stretchable member is a stretchable film.

According to the aspect of the above-mentioned supplementary note 5, high elasticity can be obtained by making the elastic member into the form of a film. In addition, the manufacture of the ear loop portion is also facilitated.

(Supplement 6) In the aspect of Supplementary Note 6, the first surface sheet and the second surface sheet include nonwoven fabrics.

According to the aspect of the above-mentioned appendix 6, the first surface sheet and the second surface sheet in direct contact with the skin are made of non-woven fabrics, whereby flexibility can be imparted to the surface of the earhook portion, and the earhook can be improved. The wearing feeling of the part.

(Supplement 7) The aspect of Supplementary Note 7 is a mask comprising a mask body and an earhook piece formed by pairing the earhook parts for a mask described in any one of the first to sixth pairs. and the ear-back arrangement parts of the ear-hook part of the mask are detachably coupled to each other.

According to the aspect of the above-mentioned supplementary note 7, it is possible to provide a mask which can achieve the same effects as those described in the above-mentioned aspect of the supplementary note 1.

(Supplement 8) In the aspect of Supplementary Note 8, auxiliary materials are provided on both sides of the mask body, respectively, and the bases of the ear hooks are respectively coupled to the mask body via the auxiliary materials.

According to the aspect of the above-mentioned Supplementary Note 8, the mask can be formed without the ear hook portion and the mask body being directly coupled. Therefore, it is possible to individually form the joint part of the ear hook part and the auxiliary material, and the joint part of the mask body and the auxiliary material in an appropriate form. In addition, it can be avoided that a part of the ear hook portion is used for adhesion to the mask body. Therefore, compared with the case where the earhook part is directly combined with the mask body, the earhook part can be more freely swayed relative to the mask body, so the degree of freedom of the wearing position of the earhook part is high.

(Supplement 9) About the aspect of appendix 9, it is a kind of manufacturing method of the ear loop part for masks, and it comprises the following steps: (a1) Disposing the first surface sheet tape and the second surface sheet tape on both sides of the elastic member tape in a state in which the elastic member tape has been stretched in a predetermined direction, respectively; (a2) The first surface sheet tape, the elastic member tape, and the second surface sheet tape are joined by a plurality of joints to obtain a laminate; (a3) relaxing the layered body in the predetermined direction; (a4) The above-mentioned laminated body is cut into a predetermined shape to form an earhook piece that is detachably joined by a pair of earhook parts; Wherein, the ear hook part for the mask has: a base part fixed on the mask body, an ear back arrangement part located on the back of the wearer's ear, an upper side transition part extending from the base part to the ear back arrangement part on the upper side, and a lower side and a lower side transition portion extending from the base portion to the ear back arrangement portion; In addition, when performing the joining of the above (a2), the number of the plurality of joining parts per unit area in the ear back arrangement part is set to be greater than the number of at least one of the upper running part and the lower running part. The number of the above-mentioned plural junctions per unit area is large.

According to the aspect of the above-mentioned supplementary note 9, it is possible to provide a method of manufacturing the ear loop portion for a mask, which can achieve the same effects as those described in the above-mentioned aspect of the supplementary note 1.

(Supplement 10) About the aspect of appendix 10, it is a kind of manufacturing method of mask, and it carries out the following steps: (a) manufacturing the ear loop parts for masks by the manufacturing method of the aspect described in the above-mentioned appendix 9; (b) attaching an auxiliary material strip to the sides of the two aforementioned earloop pieces that have been separated; (c) Joining the aforementioned auxiliary material band to the mask body band; (d) The auxiliary material tape and the mask body tape are cut to form individual masks.

According to the aspect of the above-mentioned supplementary note 10, it is possible to provide a method for producing a mask, which can achieve the same effects as those described in the above-mentioned aspect of the supplementary note 1.

This application claims the priority of Basic Application No. 2020-144843 filed with the Japan Patent Office on August 28, 2020, the entire contents of which are incorporated herein by reference.

1: Mask 2: First surface sheet 2A: First surface sheet tape 3: Second surface sheet 3: Second surface sheet tape 5: Stretch film (stretch member) 5A: Stretch film tape ( Elasticity member tape) 6A: Multilayer structure 8A: Laminated body 10: Mask body 10A: Mask body tape 15: Gather (fold) 20: Ear hook part sheet 20a: Ear hook part 20A: Ear hook part sheet belt 22: Base part 23 : Upper running part 24 : Back of ear arrangement part 25 : Pinch part 26 : Lower running part 28 : Separable joint part 29 : Opening 30 : Auxiliary material 30A: Auxiliary material tapes 40 , 41 , 42 : Joint part 50 : 1st side part joint part 60 : 2nd side part joint part 100 : Manufacturing apparatus for ear loop parts for masks 121 : 1st surface sheet tape supply means 122 : 2nd surface sheet tape supply means 123 : stretchable film tape Supply means 140: Joining means 160: Relaxation means 180: Punching means 200: Mask member assembly device 221: Mask body belt Supply means 240: Joining and cutting part 300: Mask manufacturing apparatus R1, R1 _A , R1 _B : Sparse distribution Area R2: dense distribution area D1: up-down direction of the mask D2: left-right direction of the mask Dt: conveying direction

Fig. 1 is a plan view showing the mask according to one aspect of the present invention as seen from the outside. Fig. 2 is a plan view showing a view from the inside (face side) of the mask shown in Fig. 1 . FIG. 3 is a cross-sectional view taken along the line I-I in FIG. 1 . Fig. 4 is a plan view of a pair of ear hook portions opened sideways during use. FIG. 5 is a cross-sectional view taken along the line II-II in FIG. 4 . Fig. 6 is a cross-sectional view showing an earhook portion according to an aspect of the present invention. Fig. 7 is a plan view showing an ear hook part according to an aspect of the present invention. Fig. 8 is an enlarged view of the joint portion. Fig. 9 is a schematic diagram of a mask manufacturing apparatus. Fig. 10 is a diagram for explaining the manufacture of the mask.

Domestic storage information (please note in the order of storage institution, date and number) without Foreign deposit information (please note in the order of deposit country, institution, date and number) without

20: ear hook piece

20a: ear hook

22: Base

23: Upper side transition

24: Back-of-the-ear configuration

25: Pinch part

26: Lower side transition

28: Separable joints

29: Opening

40, 41, 42: Joints

R1 _A ,R1 _B : sparse distribution area

R2: dense distribution area

D1: The up and down direction of the mask

D2: Left and right direction of the mask

Claims (10)

A kind of ear hook part for mask, it is formed by following material, and this material has stretchable member and the 1st surface sheet and the 2nd surface sheet, and this 1st surface sheet and the 2nd surface sheet are in the aforementioned When the stretchable member is stretched, a plurality of joints are respectively joined to both sides of the stretchable member; Wherein, the ear hook part for the mask has: a base part fixed on the mask body, an ear back arrangement part located on the back of the wearer's ear, an upper side transition part extending from the base part to the ear back arrangement part on the upper side, and a lower side and a lower side transition portion extending from the base portion to the ear back arrangement portion; In addition, the number of the plurality of joint parts per unit area in the ear back arrangement part is greater than the number of the plurality of joint parts per unit area in at least one of the upper running part and the lower running part . The ear hook part for a mask according to claim 1, wherein the area of each of the plurality of joint parts in the ear back arrangement part is larger than that of the plurality of at least one of the upper running part and the lower running part The area of each of the junctions is small. The ear hook part for a mask according to claim 1 or 2, wherein the pitch in the left-right direction of the plurality of joint parts in the ear back arrangement part is smaller than at least one of the upper running part and the lower running part The pitch in the left-right direction of the plurality of joint portions is small. The ear loop part for a mask according to any one of claims 1 to 3, wherein the joint part is a welded part in which the elastic member, the first surface sheet, and the second surface sheet are welded together . The earloop for a mask according to any one of claims 1 to 4, wherein the stretchable member is a stretchable film. The earloop for a mask according to any one of claims 1 to 5, wherein the first surface sheet and the second surface sheet are made of nonwoven fabric. A mask, which has a mask body and an ear-hook piece, the ear-hook piece is formed by the ear-hook part for a mask according to any one of the paired claims 1 to 6, and the ear-hook part for the mask is made of The behind-the-ear configurations are detachably coupled to each other. The mask according to claim 7, wherein auxiliary materials are provided on both sides of the mask body, respectively, and the bases of the ear hooks are respectively coupled to the mask body via the auxiliary materials. A kind of manufacture method of ear hook part for mask, it comprises the following steps: (a1) Disposing the first surface sheet tape and the second surface sheet tape on both sides of the elastic member tape in a state in which the elastic member tape has been stretched in a predetermined direction, respectively; (a2) The first surface sheet tape, the elastic member tape, and the second surface sheet tape are joined by a plurality of joints to obtain a laminate; (a3) relaxing the layered body in the predetermined direction; (a4) The above-mentioned laminated body is cut into a predetermined shape to form an earhook piece that is detachably joined by a pair of earhook parts; Wherein, the ear hook part for the mask has: a base part fixed on the mask body, an ear back arrangement part located on the back of the wearer's ear, an upper side transition part extending from the base part to the ear back arrangement part on the upper side, and a lower side and a lower side transition portion extending from the base portion to the ear back arrangement portion; In addition, when performing the joining of the above (a2), the number of the plurality of joining parts per unit area in the ear back arrangement part is set to be greater than the number of at least one of the upper running part and the lower running part. The number of the above-mentioned plural junctions per unit area is large. A kind of manufacture method of mouth mask, it carries out the following steps: (a) manufacturing the ear loop piece for a mask by the manufacturing method described in claim 9; (b) attaching an auxiliary material tape to the side portions of the two aforementioned earloop pieces that have been separated; (c) joining the aforementioned auxiliary material band to the mask body band; (d) The auxiliary material band and the mask body band are cut to form individual masks.

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