KR102347594B1 - Mask including adhesion for disinfection and dustproof - Google Patents

Abstract

A quarantine and dust-proof mask including an adhesive is provided. The mask is a mask having a multilayer structure, comprising: a first layer constituting an outer material; a second layer disposed on the first layer and having an opening; a fourth layer disposed on the second layer and having an opening and constituting a lining; and an adhesive portion that at least partially overlaps the opening in the second layer and the opening in the fourth layer.

Description

Prevention and dust mask including adhesive part

The present invention relates to a mask for prevention and/or dust protection. In detail, the present invention relates to an anti-epidemic and dust-proof mask including an adhesive part.

In general, a mask is used as a generic term for a tool that can be worn on a human face or the like to partially cover or cover the face. Masks can be broadly classified into cosmetic masks, thermal masks, quarantine masks (health masks), dust masks, gas masks, fire masks, and the like, depending on the use.

Recently, the problem of fine dust has come to the fore, and in particular, the first case occurred in Wuhan, China in December 2019, causing a worldwide pandemic. importance is growing.

Both the quarantine mask and the dust mask have similarities in that they filter fine-sized particulate matter through a filter. Currently, the Ministry of Food and Drug Safety of the Republic of Korea grants particle blocking performance certification for masks approved as quasi-drugs by dividing them into KF80, KF94, and KF99. For example, a mask of KF80 grade blocks more than 80% of fine particles with an average particle size of 0.6 μm, and masks of KF94 and KF99 grades can block 94% and 99% or more of ultra-fine particles with an average particle size of 0.4 μm, respectively. do. In addition, various particle blocking performance certifications are granted for each country. The US National Institute for Occupational Safety and Health (NIOSH) is giving various grades according to the resistance of oil and the blocking ability of fine particles. For example, an N95 grade mask means that it is not resistant to oil and can block more than 95% of fine particles with a size of 1.0 μm.

On the other hand, the size of the corona virus is about 0.4 μm to 0.6 μm, which is known as a virus with a relatively large cell size. Therefore, only a dust mask for blocking fine dust can exhibit not only a dust-proof effect but also a significant anti-epidemic effect. For this purpose, the US National Institute for Occupational Safety and Health announced that even wearing a dust mask of N95 grade or higher to block the virus is effective in preventing infectious diseases.

Korean Patent Publication No. 10-2019-0009814 (2019.01.29.) (Patent Document 2) Korean Patent Publication No. 10-2019-0123919 (2019.11.04.) (Patent Document 3) Korean Patent Document 10 -1591165 (2016.02.18.) (Patent Document 4) Korean Patent Publication No. 10-2016-0028202 (2016.03.11.) (Patent Document 5) Korean Utility Model Document No. 20-2016-0003506 (2016.10. .11.)

It is important to completely cover the respiratory path, that is, the mouth and nose, and keep the condition stable in order to reliably guarantee the quarantine and/or dust-proof characteristics of the mask. In order to stably fix the mask to the human face, a rubber band material that can be hung on the human ear is provided at the left and right ends of the mask to be implemented as an ear-hung mask, or as a head-hung mask to be hung on the human head it is common to do

However, when the mask is worn for a long time, the rubber band material compresses the human skin, causing discomfort, and in severe cases, there is a problem that a lump or abrasion occurs on the skin.

In addition, since the size of the face is different for each person, a means for adjusting the length of the ring or fixing the ring is required separately. In addition, the ear-hung mask needs supplementation as the ring can be easily removed from the ear even with a slight impact. In addition, depending on whether the wearer wears earrings or earphones, the ear-hung type mask and the head-hung type mask have several problems.

Therefore, in order to solve this problem, various types of masks are being researched and developed.

For example, Patent Document 1 discloses a structure for increasing the adhesion between the face and the mask by providing an adhesive tape on the upper portion of the mask body. Specifically, Patent Document 1 is configured such that the adhesive tape is attached to the human nose bridge. In addition, Patent Document 1 teaches that by increasing the adhesion between the face and the mask, it is possible to prevent gas from flowing over the mask and prevent problems such as fogging of glasses. However, referring to FIG. 2 of Patent Document 1, it is merely a structure for attaching an adhesive tape to the outside of the lining of the mask.

Patent Document 2 also discloses a structure similar to that of Patent Document 1. Patent Document 2 discloses a structure for increasing the adhesion between the face and the mask by attaching an adhesive tape to the upper part as well as the lower part and both sides of the mask body. In addition, referring to FIG. 4 of Patent Document 2 related to manufacturing a mask with an adhesive tape attached thereto, it is merely a structure in which a double-sided adhesive tape is attached after the mask body is manufactured.

Patent Document 3, Patent Document 4, and Patent Document 5 also disclose a structure configured such that the adhesive material is attached to the face by applying an adhesive material on the inner surface of the mask like the previous patent documents.

All of the masks disclosed in Patent Documents 1 to 5 have similarities in that an adhesive tape or the like is disposed on the inner surface of the mask body, and the above-mentioned problems of the ear-hung mask and the head-hung type mask can be somewhat solved. However, the mask having this structure has a weak bonding force between the adhesive part and the mask body, and there is a limit in improving the adhesion between the face and the mask. In particular, when the mask body has a multi-layered non-woven fabric structure, this problem may be further exacerbated.

For example, when the adhesive tape is too strongly bonded to the human face, there is a problem in that the adhesive tape is detached from the mask body.

For another example, if the adhesive tape is too strongly bonded to the human face and mask body, the space between the multi-layered nonwovens is widened, the filter properties of fine particles are deteriorated, and in severe cases, the nonwoven fabric may be torn. have.

For another example, since the nonwoven fabrics of the multilayer structure are not fixed in position with each other, the adhesive tape is only attached to the nonwoven fabric constituting the lining of the mask body, so even if the adhesive tape is attached to the face, the actual adhesion of the mask body is not high. can

Accordingly, the problem to be solved by the present invention is to provide a mask capable of at least partially bonding to a human face, including an adhesive part, having excellent durability and further improving adhesion to the face.

Another problem to be solved by the present invention is to provide a method of manufacturing a mask capable of being at least partially coupled to a human face, including an adhesive, but having excellent durability and improved adhesion to the face.

The problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

A mask according to an embodiment of the present invention for solving the above problems is a mask having a multilayer structure, comprising: a first layer constituting an outer material; a second layer disposed on the first layer and having an opening; a fourth layer disposed on the second layer and having an opening and constituting a lining; and an adhesive portion that at least partially overlaps the opening in the second layer and the opening in the fourth layer.

According to this embodiment, the mask can be easily detached by a method such as attaching the adhesive to the face.

In a plan view, the adhesive portion may be larger than the opening of the second layer and the opening of the fourth layer, and the adhesive portion may be at least partially interposed between the first layer and the second layer.

Through this, the adhesive portion can be combined with the first layer, and durability and face adhesion of the mask can be improved.

In addition, when the mask is worn, the adhesive part is positioned to correspond to the wearer's cheeks, and in the width where the adhesive part is interposed between the first layer and the second layer, the width interposed in the direction of the outer part of the mask is It may be more than twice the width interposed in the direction of the center of the mask.

If the adhesive portion is disposed on the lining side of the mask, durability may be a problem. The inventors of the present invention have completed the present invention by paying attention to the weakness in the direction of the outer portion of the mask than the direction of the center of the mask in the bonding structure of the adhesive portion and the mask body.

The first layer and the second layer may at least partially contact each other, the first layer and the adhesive portion may at least partially contact each other, and the second layer and the adhesive portion may at least partially contact each other.

Through this, the durability of the mask including the adhesive part may be improved.

In addition, the first layer, the second layer, the fourth layer, and the adhesive portion at least partially overlap, and in the overlapping portion, the first layer, the second layer, the fourth layer and the adhesive portion are heated with each other It can be affixed, radiofrequency affixed or laser affixed.

By bonding the adhesive part together with the mask including the first layer, the second layer, and the fourth layer, the adhesive part can be firmly fixed without adding a separate process, and manufacturing costs can be reduced.

In some embodiments, the mask comprises: a third layer interposed between the second layer and the fourth layer and having an opening; and a wire interposed between the second layer and the third layer.

By disposing the adhesive portion and the wire on different layers, the durability of the mask can be improved. For example, in the process of detaching the mask, a force is applied to the adhesive part, and a gap between two layers surrounding the adhesive part may be widened. As a non-limiting example, when the adhesive portion and the wire are located on the same layer, the two layers are spread apart and a problem such as damage to the bonding portion for fixing the wire may occur.

wherein the adhesive portion at least partially overlaps the opening in the third layer, the opening in the second layer, the opening in the third layer, and the opening in the fourth layer overlap each other, and the adhesive portion at least partially overlaps the opening in the fourth layer It may be interposed between the first layer and the second layer.

Through this, the adhesive portion can be combined with the first layer, and durability and face adhesion of the mask can be improved. In addition, since the adhesive part can be exposed to the lining side of the mask, the adhesive part can be attached to the wearer's face.

The adhesive portion may at least partially overlap only the first layer, and the adhesive portion may at least partially overlap the second layer, the third layer and the fourth layer.

Through this, the adhesive part can be exposed to the lining side of the mask, so that the adhesive part and the wearer's face can be attached.

In some embodiments, the mask may further include a release film covering the adhesive part.

In the initial state, the adhesive part is covered and protected by the release film, and when using a mask, the adhesive force of the adhesive part can be guaranteed by peeling the release film.

The maximum length in the vertical direction of the adhesive portion may be greater than the maximum length in the horizontal direction.

By configuring the adhesive portion to be relatively longer in the vertical direction than in the horizontal direction, the adhesive force between the adhesive portion and the wearer's face may be improved.

In addition, the mask is a two-stage foldable mask having a fold line extending in the vertical direction and penetrating the center of the mask, and the adhesive portion is located at positions corresponding to the left and right with respect to the fold line, and an even number of the mask is In the folded state along the fold line, the two adhesive portions at symmetrical positions may be configured to abut and attach to each other.

As a non-limiting example, when the mask is configured as a two-stage foldable, the user takes off the mask and stores it by folding along the fold line, but at this time, the adhesive force of the adhesive part is reduced by configuring the adhesive parts disposed at the corresponding positions to contact each other and attach them. can be guaranteed

In some embodiments, the mask further comprises a strap thermally attached, radiofrequency attached, or laser attached to the fourth layer, wherein both ends abut the fourth layer, wherein the mask is folded along the fold line and has two adhesives. In a state in which the part is abutted and attached, it may be configured to unfold the mask using the strap.

When the mask is configured in a two-fold fold, the folded state can be fixed by contacting the adhesive portions disposed at corresponding positions, and the mask can be easily unfolded using the strap as a handle.

In addition, the adhesive portion may have a convexly curved shape from the central portion of the mask toward the outer portion.

Through this, a plurality of facial muscles and the adhesive part may be coupled, and the adhesive part may be stably maintained in a state in which the adhesive part is coupled to the face even when the facial muscle moves due to an operation such as a user's speaking.

In a plan view, the adhesive part may not be located in an area spaced apart by 2 cm from the outer edge of the mask.

The vicinity of the adhesive portion may be a portion to which the strongest force is applied during the detachment process of the mask. As a non-limiting example, when the adhesive part is positioned too far to the outside of the mask, the multilayer nonwoven fabric of the mask body may be torn or peeled due to the bonding force between the adhesive part and the mask body.

A mask according to another embodiment of the present invention for solving the above problems includes a first layer having a first thickness; a second layer disposed on the first layer and having a second thickness less than the first thickness; a fourth layer disposed on the second layer and having a fourth thickness less than the first thickness; and an adhesive at least partially interposed between the first layer and the second layer, the adhesive having a fifth thickness greater than the first thickness, the adhesive being exposed at least partially uncovered by the second layer and the fourth layer includes wealth.

According to this embodiment, the mask can be easily detached by a method such as attaching the adhesive to the face.

In some embodiments, the mask may further include a wire interposed between the second layer and the fourth layer.

By disposing the adhesive portion and the wire on different layers, the durability of the mask can be improved. For example, in the process of detaching the mask, a force is applied to the adhesive part, and a gap between two layers surrounding the adhesive part may be widened. As a non-limiting example, when the adhesive portion and the wire are located on the same layer, the two layers are spread apart and a problem such as damage to the bonding portion for fixing the wire may occur.

Details of other embodiments are included in the detailed description.

According to the embodiments of the present invention, it is possible to provide a mask capable of being coupled at least partially to a human face, having excellent durability and further improving adhesion to the face, and a method for manufacturing the same.

Effects according to the embodiments of the present invention are not limited by the contents exemplified above, and more various effects are included in the present specification.

1 is a view showing a state in which a wearer wears a mask according to an embodiment of the present invention.
2 is a perspective view showing a mask according to an embodiment of the present invention.
FIG. 3 is a plan view of the mask of FIG. 2 as viewed from the outer fabric side.
4 is a comparative cross-sectional view by cutting along the line AA' and the line BB' of FIG. 3 .
5 is a comparative cross-sectional view by cutting along the line AA' and line CC' of FIG. 3 .
6 is a comparative cross-sectional view by cutting along the line AA' and the line DD' of FIG. 3 .
7 is a plan view illustrating a state in which the mask of FIG. 2 is folded along a fold line.
8 is a cross-sectional view taken along line EE' of FIG.
9 is a cross-sectional view of a mask according to another embodiment of the present invention.
10 is a cross-sectional view of a mask according to another embodiment of the present invention.
11 and 12 are cross-sectional views of masks according to still other embodiments of the present invention.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, and only the embodiments allow the disclosure of the present invention to be complete, and those of ordinary skill in the art to which the present invention pertains. It is provided to fully inform the person of the scope of the invention, and the present invention is only defined by the scope of the claims. That is, various changes may be made to the embodiments presented by the present invention. It should be understood that the embodiments described below are not intended to limit the embodiments, and include all modifications, equivalents, and substitutes thereto.

The size, thickness, width, length, etc. of the components shown in the drawings may be exaggerated or reduced for convenience and clarity of description, so that the present invention is not limited to the illustrated form.

Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used with the meaning commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless clearly defined in particular.

Spatially relative terms 'above', 'upper', 'on', 'below', 'beneath', 'lower', etc. As illustrated, it may be used to easily describe a correlation between one element or components and another device or components. Spatially relative terms should be understood as terms including different orientations of the device when used in addition to the orientations shown in the drawings. For example, when an element shown in the drawing is turned over, an element described as 'below or beneath' of another element may be placed 'above' of the other element. Accordingly, the exemplary term 'down' may include both the direction of the bottom and the top.

In this specification, 'and/or' includes each and every combination of one or more of the recited items. The singular also includes the plural, unless the phrase specifically states otherwise. As used herein, 'comprises' and/or 'comprising' does not exclude the presence or addition of one or more other components in addition to the stated components. Numerical ranges indicated using 'to' indicate numerical ranges including the values stated before and after them as lower and upper limits, respectively. 'About' or 'approximately' means a value or numerical range within 20% of the value or numerical range recited thereafter.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing a state in which a wearer wears a mask according to an embodiment of the present invention.

Referring to FIG. 1 , the wearer (or user) of the mask may completely seal the respiratory path, that is, the mouth and nose by using the mask. In some embodiments, the mask may be a mask having a multilayer structure. In this case, a layer or member in contact with the user's skin may be defined as a lining, and a layer or member in contact with external air may be defined as an outer material. That is, the side recognized when looking at the wearer wearing the mask may constitute the outer material side, and the side contacting the wearer's skin may constitute the lining side.

1 illustrates a case in which the mask covers only the mouth and nose of the wearer, but the present invention is not limited thereto.

Hereinafter, the multilayer structure of the mask 10 will be described in detail with further reference to FIGS. 2 to 6 .

2 is a perspective view showing the mask 10 according to an embodiment of the present invention, and is a projection perspective view showing the internal adhesive portion 600 and the wire 700 by projecting. 3 is a plan view of the mask 10 of FIG. 2 , which is a plan view viewed from the outer fabric side of the mask.

In addition, FIG. 4 is a comparative cross-sectional view cut along line AA' and BB' of FIG. 3 and compared, and FIG. 5 is a comparative cross-sectional view cut along line AA' and CC' of FIG. is a comparative cross-sectional view by cutting along the line AA' and DD' of FIG. 3 . 4 to 6 show that the outer material of the mask is located on the lower side and the lining is located on the upper side.

2 to 6 , the mask 10 according to the present embodiment includes a first layer 100 , a second layer 200 , a third layer 300 , and a fourth layer 400 , and , may further include an adhesive part 600 . In some embodiments, the mask 10 may further include a wire 700 and a strap 800 .

The mask 10 may be a two-stage foldable mask in which a fold line FL extending in a vertical direction is formed through a substantially central portion. The two-stage foldable mask may be configured to be folded only once to the left and right based on the fold line FL. That is, the mask 10 may be a horizontally foldable mask. In this case, the mask 10 may have a left-right symmetric shape with respect to the fold line FL, but the present invention is not limited thereto.

The first layer 100 , the second layer 200 , the third layer 300 , and the fourth layer 400 may function as a mask body that seals and covers the wearer's respirator. That is, the first layer 100 , the second layer 200 , the third layer 300 , and the fourth layer 400 form a multi-layered structure, which together can at least partially cover the wearer's face portion.

The first layer 100 may be a layer constituting the outer fabric. That is, when the mask body has a multi-layer structure as shown in FIG. 4 , the first layer 100 is located in the lowest layer, and may be a layer that is directly recognized when looking at the wearer wearing the mask 10 . In addition, the first layer 100 may be positioned at the outermost side and function as at least a first filter member.

The first layer 100 may include a polymer material. For example, the first layer 100 may include a non-woven fabric using a polymer material. Examples of the polymer material include at least one of polypropylene (PP), polyethylene terephthalate (PET), polyethylene (PE), polyether sulfone (PES), and nylon (nylon). can

When the first layer 100 is made of a nonwoven fabric, the first layer 100 is prepared through a process such as melt blown, spunbond, spunlace or needle punching. However, the present invention is not limited thereto.

The second layer 200 may be disposed on the first layer 100 . As shown in FIG. 4 , when the mask body includes four layers, the second layer 200 may be an intervening layer that is not visible from the outside of the mask body. Further, the second layer 200 may function as at least a second filter member and/or as a support for maintaining the overall shape of the mask body.

The second layer 200 may include a polymer material. The second layer 200 may include a polymer material that is the same as or different from that of the first layer 100 . For example, the second layer 200 may include a nonwoven fabric using a polymer material. In addition, the second layer 200 may be prepared in the same or different process as the first layer 100 .

The second layer 200 may at least partially contact the first layer 100 . However, the entire surface is not coupled between the first layer 100 and the second layer 200 except for coupling portions 910 , 920 , 930 , and 940 to be described later, and the first layer 100 and the second layer An air layer may be interposed between the two layers 200 .

The second layer 200 may have a second thickness T _{2 that is smaller than the first thickness T 1} of the first layer 100 . In this specification, the thickness means the length in the stacking direction of each layer, and unless otherwise defined, means the maximum thickness in any portion.

Also, the second layer 200 may have greater air permeability than the first layer 100 . That is, the first layer 100 and the second layer 200 have a structure in which fibers are entangled, have a nano-to-micro-level porous structure, and have a predetermined air permeability, but the pressure loss of the first layer 100 (pressure drop) may be greater than the pressure loss of the second layer 200 . However, the present invention is not limited thereto.

In an exemplary embodiment, the second layer 200 may have an opening. In this specification, 'opening' means opening in the shape of a figure forming a closed curve when viewed from a plan view. The opening of the second layer 200 may overlap the adhesive part 600 to be described later in the lamination direction. Also, the opening of the second layer 200 may overlap the first layer 100 in the stacking direction. This will be described later in detail.

A third layer 300 may be disposed on the second layer 200 . As shown in FIG. 4 , when the mask body includes four layers, the third layer 300 may be an intervening layer that is not visible from the outside of the mask body. In addition, the third layer 300 may function as at least a third filter member and/or as a support for maintaining the overall shape of the mask body.

The third layer 300 may include a polymer material. The third layer 300 may include a polymer material that is the same as or different from that of the first layer 100 and/or the second layer 200 . For example, the third layer 300 may include a nonwoven fabric using a polymer material. In addition, the third layer 300 may be prepared in the same or different process from the first layer 100 and/or the second layer 200 .

The third layer 300 may at least partially contact the second layer 200 . However, the entire surface is not coupled between the second layer 200 and the third layer 300 except for the coupling portions 910 , 920 , 930 , and 940 to be described later, and the second layer 200 and the second layer 200 and the second layer 200 are not fully coupled. An air layer may be interposed between the three layers 300 .

The third layer 300 may have a third thickness T _{3 that is greater than the first thickness T 1} of the first layer 100 . Also, the third layer 300 may have a smaller air permeability than the second layer 200 . In some embodiments, in an initial state, the third layer 300 may be a charged electrostatic filter layer. The third layer 300 may induce static electricity to generate attractive forces with fine particulate matter. Through this, it is possible to filter fine particles that are not physically filtered through the nano or micro-sized pores of each of the layers 100 , 200 , 300 , and 400 . A method of charging the third layer 300 may be performed through a known technique.

In an exemplary embodiment, the third layer 300 may have an opening. The opening of the third layer 300 may overlap and connect with the opening of the second layer 200 . The opening of the third layer 300 may overlap the adhesive part 600 to be described later in the lamination direction, and may overlap the first layer 100 in the lamination direction. This will be described later in detail.

A fourth layer 400 may be disposed on the third layer 300 . The fourth layer 400 may be a layer constituting the lining. That is, as shown in FIG. 4 , when the mask body has a multi-layer structure, the fourth layer 400 is located on the uppermost layer, and may be a layer in direct contact with the skin of the wearer wearing the mask. In addition, the fourth layer 400 may be located at the innermost side and function as at least a fourth filter member.

The fourth layer 400 may include a polymer material. The fourth layer 400 may include a polymer material that is the same as or different from that of the first layer 100 , the second layer 200 , and/or the third layer 300 . For example, the fourth layer 400 may include a nonwoven fabric using a polymer material. In addition, the fourth layer 400 may be prepared in the same or different process from the first layer 100 , the second layer 200 , and/or the third layer 300 .

The fourth layer 400 may at least partially contact the third layer 300 . However, the entire surface is not coupled between the third layer 300 and the fourth layer 400 except for the coupling portions 910 , 920 , 930 , and 940 to be described later, and the third layer 300 and the second layer An air layer may be interposed between the fourth layers 400 .

The fourth layer 400 may have a fourth thickness T _{4 that is smaller than the first thickness T 1} of the first layer 100 and the third thickness T ₃ of the third layer 300 . Also, the fourth layer 400 may have greater air permeability than the first layer 100 . As a non-limiting example, the fourth layer 400 may be made of the same material as the second layer 200 , and may have the same thickness and the same air permeability.

In an exemplary embodiment, the fourth layer 400 may have an opening. The opening of the fourth layer 400 may overlap and connect with the opening of the second layer 200 and the opening of the third layer 300 . The opening of the fourth layer 400 may overlap the adhesive part 600 to be described later in the lamination direction, and may overlap the first layer 100 in the lamination direction. This will be described later in detail.

The adhesive part 600 may at least partially overlap and be interposed between the first layer 100 and the second layer 200 . Specifically, the adhesive part 600 has a larger planar area than the opening of the second layer 200 , the opening of the third layer 300 , and the opening of the fourth layer 400 , and the second layer 200 . The opening of , the opening of the third layer 300 and the opening of the fourth layer 400 may overlap in the stacking direction. In other words, at least a portion of the central portion of the adhesive portion 600 may overlap only the first layer 100 but not the second layer 200 , the third layer 300 , and the fourth layer 400 . . In addition, at least a portion of the edge portion of the adhesive portion 600 may overlap the first layer 100 , the second layer 200 , the third layer 300 , and the fourth layer 400 at the same time. A portion of the adhesive portion 600 overlapping the openings may be exposed toward the wearer of the mask 10 .

When the wearer wears the mask 10, the adhesive part 600 may be positioned to approximately correspond to the wearer's cheeks. That is, the adhesive part 600 may be attached to, adhered to, adhered to, or coupled to the left and right cheeks of the wearer. When the mask 10 is a two-stage foldable mask, the adhesive parts 600 are symmetrically positioned on the left and right with respect to the fold line FL, and accordingly, an even number of the adhesive parts 600 may be provided.

In a plan view, the adhesive part 600 may have a shape in which the maximum length in the vertical direction is greater than the maximum length in the horizontal direction. In addition, the adhesive portion 600 may have a convexly curved shape from the central portion of the mask 10 toward the outer portion in a plan view. As described above, the adhesive part 600 may be attached to the wearer's cheeks. In the vicinity of the human cheek, there are a plurality of muscles transverse to the transverse direction (approximately in the transverse direction), and as the adhesive part 600 has the same shape as described above, even when the wearer's ball muscles move, the adhesive part 600 may be prevented from falling off from the wearer's facial skin. In addition, the wearer's breathing discomfort can be alleviated by securing a sufficient air intervening area in the vicinity of the wearer's respiratory tract, which is substantially sealed or surrounded by the adhesive part 600 .

As described above, the adhesive part 600 may be at least partially interposed between the first layer 100 and the second layer 200 . In this case, in the width where the adhesive part 600 is interposed between the first layer 100 and the second layer 200 , the width L ₁ interposed in the direction of the outer portion of the mask 10 is the mask 10 . It may be greater than the _{width L 2} interposed in the direction of the central portion of the . The outer portion direction means a direction toward the wearer's ears, and the central portion direction means a direction toward the wearer's mouth or nose.

As a non-limiting example, when the adhesive part 600 is combined with the fourth layer 400 constituting the lining without being interposed between the first layer 100 and the second layer 200, the adhesive part 600 Various problems may occur due to the bonding force between the mask body and the fourth layer 400 of the mask body. For example, when the bonding force between the adhesive part 600 and the fourth layer 400 is not so great, the adhesive part 600 may fall off from the fourth layer 400 . For another example, when the adhesive portion 600 is strongly coupled to the wearer's facial skin, in the process of detaching the mask, the multi-layered nonwoven fabrics are separated and the filter properties are deteriorated, and even the nonwoven fabric may be torn. have. For another example, when the nonwoven fabrics of the multilayer structure are not coupled to each other over the entire surface, the positions of each other in a plane are not fixed, and accordingly, even if the adhesive part 600 is coupled to the wearer's skin, The constituting first layer 100 may not ensure that it is in close contact with the wearer's face.

In addition, when the third layer 300 is an electrostatic filter layer having a charged charge, when the adhesive portion 600 comes into contact with the third layer 300 , a charge loss occurs in the third layer 300 and the mask 10 ) may decrease, or the ability to block fine particles of the electrostatic filter layer may decrease.

The mask 10 according to the present invention has the advantage of solving the above-mentioned problems as the adhesive part 600 is interposed between the first layer 100 and the second layer 200 . In addition, when the wearer uses the mask 10, detachment is generally performed from the outer portion of the mask 10 toward the center, and at this time, a greater stress is applied to the outer side of the mask of the adhesive part 600 than the center of the mask. The present invention was completed by paying attention to what was added.

That is, as the wearer repeatedly uses the mask 10, damage may occur to the bonding portion between the adhesive portion 600 and the mask body (eg, the first layer 100 and/or the second layer 200). _{, so that the width L 1 at} which the adhesive part 600 is interposed in the outer direction is _{larger than the width L 2} interposed in the central direction, so that the durability of the mask 10 can be further improved. _{In an exemplary embodiment, the width L 1} at which the adhesive portion 600 is interposed in the outward direction is at least about 1.5 times, or at least about 2 times, or at least about 2.5 times _{the width L 2} , interposed in the central direction. , or about 3 times or more.

Meanwhile, the first layer 100 , the second layer 200 , the third layer 300 , the fourth layer 400 , and the adhesive part 600 may be directly coupled. Examples of the direct bonding include thermal bonding, radio frequency bonding, or laser bonding. Another example of the direct bonding may be sewing attachment using fibers.

Specifically, the first layer 100 , the second layer 200 , the third layer 300 , the fourth layer 400 and the adhesive part 600 at least partially overlap in the stacking direction, and at the overlapping position A first coupling part 910 may be formed. In the case of laser attachment as an example, heat is generated at a position in contact with each other and may be directly bonded to an adjacent layer or member. For example, the adhesive part 600 may be directly coupled to portions of the first layer 100 and the second layer 200 that are in contact with them. A position in a plane between the first layer 100 , the second layer 200 , the third layer 300 , the fourth layer 400 and the adhesive part 600 may be approximately fixed by the first coupling part 910 . can The first coupling part 910 may be a point adhesive part overlapping the adhesive part 600 and repeatedly arranged along the edge of the adhesive part 600 .

The vicinity of the first coupling portion 910 may be contracted or compressed, and the thickness in the stacking direction may be approximately reduced. In some embodiments, the edge portion of the adhesive portion 600 interposed between the first layer 100 and the second layer 200 may be compressed to have a relatively small thickness. Accordingly, the air layer AG may be at least partially interposed between the first layer 100 and the second layer 200 . On the other hand, the central portion of the adhesive portion 600 overlapping the openings and not covered may have a maximum thickness. The maximum thickness (eg, fifth thickness) of the adhesive part 600 is greater than the sum _{of the first thickness T 1} , the second thickness T ₂ , the third thickness T ₃ , and the fourth thickness T _{4 .} It may be large, but the present invention is not limited thereto.

The adhesive part 600 may include a material including a silicone polymer. The adhesive part 600 may be made of a material that does not slide from the skin despite gravity, having a strong adhesive force, adhesive force, or adhesive force in contact with human skin. In an exemplary embodiment, the adhesive part 600 may be formed of a copolymer of polyalkylvinylsiloxane having a vinyl group and hydrosiloxane. When the adhesive part 600 includes polyalkylvinylsiloxane, laser bonding or thermal bonding between the first layer 100 and the second layer 200 made of polypropylene or the like may be easy.

In some embodiments, one surface (the upper surface of FIG. 4 ) and the other surface (the lower surface of FIG. 4 ) of the adhesive part 600 may have an uneven surface or a groove. That is, the bending center line of the mask 10 including the adhesive part 600 may be located within the adhesive part 600 . Accordingly, one surface and the other surface of the first layer 100 positioned below the adhesive part 600 may be convexly grooved downward. On the other hand, one surface and the other surface of the second layer 200 , the third layer 300 , and the fourth layer 400 positioned above the adhesive part 600 may be convexly grooved upward.

As a non-limiting example, the adhesive part 600 is made of a material having a relatively large thickness and elasticity including a silicone polymer, and the first layer 100 , the second layer 200 , and the third layer 300 . ) and the fourth layer 400 have a relatively small thickness and are made of a nonwoven material, when the mask 10 is bent, a greater bending stress may be applied to the adhesive portion 600 compared to the nonwoven layer. Therefore, the durability of the mask 10 may be further improved by configuring the bending center line to be positioned within the adhesive portion 600 .

Although not shown in the drawings, in an initial state, a release film (not shown) may be further disposed on the exposed adhesive part 600 . The user of the mask 10 may partially expose the adhesive part 600 after removing the release film, and attach the adhesive part 600 to the cheek of the wearer using the adhesive force of the exposed adhesive part 600 .

A wire 700 may be interposed between the second layer 200 and the third layer 300 . The wire 700 may be configured to be positioned near the wearer's nose. The wire 700 has flexibility and is easily bent by human force, but may be configured to maintain a bent shape. By configuring the wire 700 to be bent along the wearer's nose, the adhesion between the mask 10 and the wearer's face can be increased.

The wire 700 may be preferably interposed in a layer different from the adhesive part 600 . As a non-limiting example, the wire 700 can have a very large thickness. If the wire 700 is disposed on the same layer as the adhesive portion 600 , for example, the wire 700 is interposed between the first layer 100 and the second layer 200 , the thickness of the wire 700 is As a result, the adhesive part 600 may not stably maintain a state interposed between the first layer 100 and the second layer 200 , and thus the first coupling part 910 may be destroyed. That is, when the adhesive part 600 is further interposed as in the present invention in the conventional mask having a multilayer structure, the adhesive part 600 and the wire 700 are disposed in different layers to lower the durability of the mask 10 . can prevent In particular, since the wire 700 and the adhesive part 600 are configured to be repeatedly bent in the horizontal direction according to the use of the mask 10, it is preferable to arrange the wire 700 and the adhesive part 600 on different layers. can

The wire 700 is not directly coupled to the mask body, that is, the first layer 100 , the second layer 200 , the third layer 300 , and the fourth layer 400 by the second coupling part 920 . It is trapped and only the position on the plane may be in a fixed state. Specifically, in the vicinity of the wire 700 , the first layer 100 , the second layer 200 , the third layer 300 , and the fourth layer 400 at least partially overlap in the stacking direction, the overlapping position A second coupling portion 920 may be formed in the . Examples of a method of forming the second coupling portion 920 may include thermal bonding, high-frequency bonding, or laser bonding. Another example of forming the second coupling part 920 may be sewing attachment using fibers. The second coupling part 920 does not overlap the wire 700 in the stacking direction, and may be a point bonding part repeatedly arranged along the outer edge of the wire 700 . The vicinity of the second coupling portion 920 is contracted or compressed, and the thickness in the lamination direction is approximately reduced, and accordingly, an air layer AG is at least partially interposed between the second layer 200 and the third layer 300 . can be

A strap 800 may be disposed on the fourth layer 400 constituting the lining. In an exemplary embodiment, the strap 800 may be coupled to the lining side of the mask 10 by abutting against the outer side. In addition, one strap 800 may be directly coupled to the mask body by forming the third coupling portion 930 at approximately two locations. Specifically, in the vicinity of the strap 800 , the first layer 100 , the second layer 200 , the third layer 300 , the fourth layer 400 , and the strap 800 at least partially overlap in the stacking direction. and a third coupling portion 930 may be formed at the overlapping position. Examples of a method of forming the third coupling portion 930 may include thermal adhesion, radio frequency adhesion, or laser adhesion. Another example of forming the third coupling part 930 may be sewing attachment using fibers. The vicinity of the third coupling part 930 may be contracted or compressed, and the thickness in the stacking direction may be approximately reduced.

As described above, both ends of the strap 800 may be directly coupled to the fourth layer 400 to form a ring. The maximum size of the ring formed by the strap 800 may not reach the wearer's ear because it is relatively small. For example, when the ring is elongated, the maximum length of the ring may be about 5 cm, or about 4 cm, or about 3 cm, or about 2 cm. The ring formed by the strap 800 may serve as a handle. This will be described later.

Hereinafter, the folded state of the mask 10 will be described in detail with further reference to FIGS. 7 and 8 . 7 is a plan view illustrating a state in which the mask 10 of FIG. 2 is folded along the fold line FL. FIG. 8 is a cross-sectional view taken along line EE' of FIG. 7, showing that the outer fabric of the mask is located on the outside and the lining is located on the inside, and the center side of the mask is on the left and the outer side of the mask is on the right to be.

7 and 8 , the two-stage foldable mask may be folded in the left and right directions along the fold line FL. When the wearer wants to detach the mask 10 for reasons such as ingestion of food, the mask 10 may be stored in a folded state.

In this case, the adhesive parts 600 existing at positions symmetrical to each other with respect to the fold line FL may be attached to each other in contact with each other. Through this, it is possible to prevent foreign substances such as dust from being attached to the surface of the adhesive part 600 and to maintain the adhesive force of the adhesive part 600 . In addition, when the mask 10 that is unintentionally folded is unfolded and the lining of the mask 10 is exposed, the mask 10 may be contaminated and reuse may be difficult. The mask 10 according to the present invention has the advantage of stably maintaining the folded state by the adhesive portion 600 .

Meanwhile, when the wearer wants to unfold the mask 10 , it may be difficult to unfold it due to the strong adhesive force of the adhesive part 600 . At this time, the mask 10 can be easily unfolded by using the ring formed by the strap 800 coupled to the inside of the mask 10, that is, the strap directly coupled to the fourth layer 400, as a handle.

In some embodiments, the adhesive part 600 may not be located in a region spaced 2 cm from the outer edge of the mask 10 on a plane. That is, the adhesive portion 600 may be positioned to be spaced apart from the outer edge of the mask 10 by 2 cm or more. _{In other words, the separation distances D 1} , D ₂ , and D ₃ of the adhesive part 600 from the outer edge of the mask 10 may be 2 cm or more.

Specifically, the adhesive part 600 may not be located in a region spaced apart by _{the first separation distance D 1} from the upper edge of the mask 10 . In addition, the adhesive part 600 may not be located in a region spaced apart by _{the second separation distance D 2} from the left and right edges of the mask 10 . In addition, the adhesive part 600 may not be located in a region spaced apart by _{the third separation distance D 3} from the lower edge of the mask 10 . The first separation distance D ₁ , the second separation distance D ₂ , and the third separation distance D ₃ may each be about 2 cm.

Hereinafter, other embodiments of the present invention will be described. However, the description of the same or extremely similar configuration to the mask 10 according to the above-described embodiment will be omitted, and this will be clearly understood by those skilled in the art from the accompanying drawings.

9 is a cross-sectional view of the mask 20 according to another embodiment of the present invention, and is a cross-sectional view showing a position corresponding to FIG.

Referring to FIG. 9 , the mask 20 according to the present embodiment is different from the mask 10 according to the embodiment of FIG. 5 in that the third layer is omitted so that the mask body has a multilayer structure including three layers. to be.

In an exemplary embodiment, the second layer 200 may be disposed in direct contact with the first layer 100 , and the fourth layer 400 may be disposed in direct contact with the second layer 200 . In this case, the adhesive part 600 is partially interposed between the first layer 100 and the second layer 200 , and the wire 700 is interposed between the second layer 200 and the fourth layer 400 . can That is, even when the mask 20 is formed of three layers, the adhesive part 600 and the wire 700 may be located on different layers.

In addition, the first layer 100 , the second layer 200 , the fourth layer 400 , and the adhesive part 600 together form a first coupling part 910 , and the first layer 100 , the second The layer 200 and the fourth layer 400 may form a second coupling portion 920 together.

In some embodiments, the second layer 200 may be a charged electrostatic filter layer.

10 is a cross-sectional view of the mask 30 according to another embodiment of the present invention, and is a cross-sectional view showing a position corresponding to FIG.

Referring to FIG. 10 , the mask 30 according to the present embodiment further includes a fifth layer 500 so that the mask body has a multilayer structure including five layers. ) is different from

In an exemplary embodiment, a fifth layer 500 may be further interposed between the third layer 300 and the fourth layer 400 . The fifth layer 500 may be disposed in direct contact with the third layer 300 and the fourth layer 400 . As shown in FIG. 10 , when the mask body includes five layers, the fifth layer 500 may be an intervening layer that is not visible from the outside of the mask body. In addition, the fifth layer 500 may function as at least a fifth filter member and/or as a support for maintaining the overall shape of the mask body. In some embodiments, in an initial state, the fifth layer 500 may be an electrostatic filter layer charged with electric charge.

The fifth layer 500 may include a polymer material. The fifth layer 500 may include the same or different polymer material from the first layer 100 , the second layer 200 , the third layer 300 , and/or the fourth layer 400 . For example, the fifth layer 500 may include a nonwoven fabric using a polymer material. The fifth layer 500 may be prepared in the same or different process from the first layer 100 , the second layer 200 , the third layer 300 , and/or the fourth layer 400 .

The fifth layer 500 may contact adjacent third and fifth layers 300 and 500 . However, except for coupling portions 910 and 920 to be described later, they are not completely coupled between adjacent layers, and an air layer may be interposed between adjacent layers. The fifth layer 500 may have a thickness smaller than that of the third layer 300 . Also, the fifth layer 500 may have greater air permeability than the third layer 300 .

The fifth layer 500 may have an opening. The opening of the fifth layer 500 may be connected to the openings of the second layer 200 , the third layer 300 , and the fourth layer 400 . The openings of the fifth layer 500 may overlap in the stacking direction of the adhesive part 600 .

In the exemplary embodiment, the adhesive portion 600 is at least partially interposed between the first layer 100 and the second layer 200 , and the wire 700 is disposed between the second layer 200 and the third layer 300 . ) can be interposed between In another embodiment, the wire 700 may be interposed between the third layer 300 and the fifth layer 500 . That is, even when the mask 30 is formed of five layers, the adhesive part 600 and the wire 700 may be located on different layers.

In addition, the first layer 100 , the second layer 200 , the third layer 300 , the fifth layer 500 , the fourth layer 400 , and the adhesive part 600 are together the first coupling part 910 . ), and the first layer 100 , the second layer 200 , the third layer 300 , the fifth layer 500 , and the fourth layer 400 together form a second bonding portion 920 . can do.

In another embodiment, the mask 30 may be a multilayer structure including six or more layers.

11 is a cross-sectional view of the mask 40 according to another embodiment of the present invention, and is a cross-sectional view showing a position corresponding to FIG.

Referring to FIG. 11 , the mask 40 according to the present embodiment is different from the mask 10 according to the embodiment of FIG. 5 in that the stacking order of the second layer 200 and the third layer 300 is different. to be.

As described above, the third layer 300 is an electrostatic filter layer, and the third layer 300 may have a greater thickness than that of the second layer 200 and have a smaller air permeability. In addition, the second layer 200 may be a non-woven fabric layer that is not charged. As in the present embodiment, the third layer 300 is disposed on the first layer 100 , the second layer 200 is disposed on the third layer 300 , and the second layer 200 is disposed on the second layer 200 . Four layers 400 may be arranged. In this case, the point in which the adhesive part 600 and the wire 700 are located on different layers is the same as in the previous embodiments.

12 is a cross-sectional view of the mask 50 according to another embodiment of the present invention, and is a cross-sectional view showing a position corresponding to a region A-A' of FIG. 5 .

Referring to FIG. 12 , the mask 50 according to the present embodiment is different from the mask 10 according to the embodiment of FIG. 5 in that it further includes a fourth coupling part 940 .

As described above, the first layer 100 , the second layer 200 , the third layer 300 , the fourth layer 400 , and the adhesive part 600 at least partially overlap in the stacking direction, and the overlapping position A first coupling portion 910 may be formed in the . A position in a plane between the first layer 100 , the second layer 200 , the third layer 300 , the fourth layer 400 and the adhesive part 600 may be approximately fixed by the first coupling part 910 . can The first coupling part 910 overlaps the adhesive part 600 and may be a point adhesive part repeatedly arranged along the edge of the adhesive part 600 .

Further, in the vicinity of the adhesive portion 600 , the first layer 100 , the second layer 200 , the third layer 300 , and the fourth layer 400 at least partially overlap in the stacking direction, and the overlapping position A fourth coupling portion 940 may be formed in the . Examples of a method of forming the fourth coupling portion 940 include thermal bonding, radio frequency bonding, or laser bonding. Another example of forming the fourth coupling part 940 may be sewing attachment using fibers. The fourth coupling part 940 does not overlap the adhesive part 600 and may be a point adhesive part repeatedly arranged along the outer edge of the adhesive part 600 . That is, the fourth coupling part 940 is different from the first coupling part 910 in that it does not overlap the adhesive part 600 .

As a non-limiting example, the fourth coupling part 940 is located only on one side (left side of FIG. 12 ) of the adhesive part 600 in the direction of the mask outer portion, and the other side of the adhesive part 600 toward the center of the mask (right side of FIG. 12 ). may not be located in

As described above, in general, when the wearer detaches the mask 50 , peeling occurs between the adhesive part 600 and the skin from the outer direction of the mask, and a large force is applied to the outer side of the adhesive part 600 at this time. Accordingly, by additionally providing the fourth coupling part 940 only on the outer side of the adhesive part 600 , an increase in mask manufacturing cost can be minimized and durability of the mask 50 can be improved. In another embodiment, the fourth coupling part 940 that does not overlap the adhesive part 600 may be located on both one side and the other side of the adhesive part 600 .

In the above, the embodiment of the present invention has been mainly described, but this is only an example and does not limit the present invention. It will be appreciated that various modifications and applications not exemplified above are possible.

Therefore, it should be understood that the scope of the present invention includes changes, equivalents or substitutes of the technical idea exemplified above. For example, each component specifically shown in the embodiment of the present invention may be implemented by modification. And differences related to such modifications and applications should be construed as being included in the scope of the present invention defined in the appended claims.

10: mask
100: first floor
200: second floor
300: 3rd floor
400: fourth floor
500: 5th floor
600: adhesive
700: wire
800: strap
910: first coupling part
920: second coupling part
930: third coupling part
940: fourth coupling part

Claims (10)

A mask having a multilayer structure, comprising:
a first layer constituting the outer material; a second layer disposed on the first layer and having an opening; a fourth layer disposed on the second layer and having an opening and constituting a lining; and an adhesive portion that at least partially overlaps the opening in the second layer and the opening in the fourth layer;
In a plan view, the adhesive portion is larger than the opening in the second layer and the opening in the fourth layer, the adhesive portion being at least partially interposed between the first layer and the second layer,
When the mask is worn, the adhesive portion is positioned to correspond to the wearer's cheeks,
In the width where the adhesive portion is interposed between the first layer and the second layer, the width interposed in the direction of the outer portion of the mask is at least twice the width interposed in the direction of the center of the mask. delete delete A mask having a multilayer structure, comprising:
a first layer constituting the outer material; a second layer disposed on the first layer and having an opening; a fourth layer disposed on the second layer and having an opening and constituting a lining; and an adhesive portion that at least partially overlaps the opening in the second layer and the opening in the fourth layer;
In a plan view, the adhesive portion is larger than the opening in the second layer and the opening in the fourth layer, the adhesive portion being at least partially interposed between the first layer and the second layer,
the first layer and the second layer at least partially contact, the first layer and the adhesive portion at least partially contact, the second layer and the adhesive portion at least partially contact, the first layer and the The second layer, the fourth layer, and the adhesive portion at least partially overlap,
In the overlapping portion, the first layer, the second layer, the fourth layer and the adhesive portion are thermally attached, radiofrequency attached, or laser attached to each other. A mask comprising sequentially stacked first to fourth layers, an adhesive part, and a wire,
the first layer constitutes an outer material, the fourth layer constitutes a lining, and the second to fourth layers have openings;
the opening in the second layer, the opening in the third layer and the opening in the fourth layer overlap each other;
the adhesive portion at least partially overlaps the opening in the second layer to the opening in the fourth layer, the wire is interposed between the second layer and the third layer, and the adhesive portion at least partially overlaps the opening in the first layer and interposed between the second layer,
wherein the adhesive portion at least partially overlaps only the first layer,
The adhesive portion at least partially overlaps the second layer, the third layer and the fourth layer. According to claim 1,
Further comprising a release film covering the adhesive portion,
The maximum length in the vertical direction is greater than the maximum length in the horizontal direction of the adhesive portion,
The mask is a two-stage foldable mask having a fold line extending in the longitudinal direction and penetrating the center of the mask,
An even number of the adhesive parts are located at positions corresponding to the left and right with respect to the fold line,
The mask is configured such that, in a state in which the mask is folded along the fold line, the two adhesive portions at symmetrical positions abut and attach to each other. According to claim 1,
A strap attached to the fourth layer by heat, radio frequency, or laser, and further comprising a strap having both ends in contact with the fourth layer,
The mask is a two-stage foldable mask having a fold line extending in the longitudinal direction and penetrating the center of the mask,
A mask configured to unfold the mask using the strap in a state in which the mask is folded along the fold line and the two adhesive parts are in contact with each other. According to claim 1,
The maximum length in the vertical direction is greater than the maximum length in the horizontal direction of the adhesive portion,
The adhesive portion may have a shape convexly curved from a central portion of the mask to an outer portion of the mask. The mask of claim 1 , wherein the adhesive part is not located in a region spaced apart by 2 cm from an outer edge of the mask in a plan view. delete

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