KR102346995B1 - Mask with secondary melt junction - Google Patents

Abstract

The present invention relates to a mask having a secondary melt bonding point. The mask comprises a mask main body (100) that includes an upper portion (101) and a lower portion (103), which are joined along a first upper portion fusion junction line (110) and a first lower portion fusion junction line (120), respectively, at upper and lower sides of a middle portion (102) covering the center of the face. At one side of the first upper portion fusion junction line (110), the mask main body (100) includes second upper portion fusion junction points (130a-130b) formed by the fusion of the middle portion (102) and the upper portion (101) in three layers, at one side of the first lower portion fusion junction line (120), the mask main body (100) comprises includes a second lower portion fusion junction point (140a) formed by the fusion of the middle portion (102) and the lower portion (103) in three layers, and in the center thereof, the mask body (100) includes second central fusion junction points (150a-150b) formed by the fusion of the upper portion (101), middle portion (102), and lower portion (103) in two or four layers, while the upper portion (101) and lower portion (103) being folded left and right in a state where the upper portion (101) and lower portion (103) are unfolded from the middle portion (102). Accordingly, the present invention has the advantage of being able to improve the wearing sensation, ease of use, and air tight properties.

Description

MASK WITH SECONDARY MELT JUNCTION

The present invention relates to a mask having a secondary melting junction point, and more specifically, by differentiating the bonding structure of a folding mask consisting of upper, middle, and lower lobes, it is advantageous to secure internal space and minimizes the possibility of contamination. It relates to a mask that improves usability.

In general, a mask is worn on the face to prevent dust or bacteria floating in the air from being inhaled through the nose or mouth or from scattering to the outside.

In particular, in recent years, not only the air environment deterioration problem such as yellow dust, soot, and high concentration fine dust, but also harmful substances occurring at work sites, and various viruses transmitted through the respiratory system are seriously emerging, so wearing a mask when going out is common.

A typical mask is made of a material such as cotton, synthetic fiber, non-woven fabric, and is manufactured so that it can be worn on the face. Recently, most disposable masks are used for hygiene and handling convenience.

Looking at the schematic structure of the mask, a predetermined filter is built in a body molded in a cup-type or folded-type shape to cover the face, and a strap for hanging over the ears is attached to both sides of the mask. Most disposable masks are a foldable mask having ease of manufacture, handling, and portability.

As an example of a known technique, Korean Patent Registration No. 10-0966272 discloses a mid-leaf filter cloth having four corners and four sides, a wearing band fixed to the four corners, and upper sides of the mid-leaf filter cloth and upper sides of the left and right sides. The upper lobe joined to have the same edge and having an arc-shaped sewing line or bending line and the nose clip is buried and fixed, and the lower lobe joined to have the same edge on the lower side of the middle lobe filter cloth and the lower left and right sides of the middle lobe filter cloth and having an arc-shaped sewing line or bending line. Including, the upper leaf folds flat on the side of the mid-leaf filter cloth when stored and unfolds over the mid-leaf filter cloth when in use, and the lower leaf folds flat on the side of the mid-leaf filter cloth when stored and unfolds down along the chin line when in use Constructs a disposable yellow dust mask that wraps around the nose clip and forms a breathing space that blocks the outside air around the nose by contacting along the face contour by matching the contour of the nose bridge.

As another example, Korean Patent Registration No. 10-1343741 discloses a mask formed by a left sheet portion and a right sheet portion made of a nonwoven fabric, and a mask body portion that covers the wearer's mouth and nose, and a mask extending from both sides of the mask body portion It has a left earring part and a right earring part joined to the main body part and having an earring hole to be hooked on the wearer's ear, and the left and right side sheet parts of the mask body part become flat when the mask is folded and overlapped with each other, and when the mask is worn, the mask body The negative left sheet portion and the right sheet portion are set apart from each other in an enlarged and open state to constitute a three-dimensional mask.

Korean Patent Registration No. 10 - 0966272 (2010.06.28) Korean Patent Registration No. 10 - 1343741 (2013.12.19) Korean Patent Registration No. 10 - 1730124 (2017.04.27) Korea Public Utility Model No. 20 - 2010 - 0009628 (2010.10.01)

The foldable mask to which the prior art as described above is applied is largely divided into a two-leaf mask (usually a bird beak type) in which the wings are folded left and right, and a three-leaf mask (usually a 3D type) in which the wings are folded up and down.

In a conventional two-leaf mask, when distribution or storage, the left and right lobes are folded in half based on the center line and are in close contact with each other.

However, since such a conventional two-lobe mask forms a structure in which the mask is closely adhered to the user's face between the ear straps on both sides based on the center line when worn, the internal space is narrow, causing discomfort in breathing, wearability is reduced, and during conversation. There are disadvantages such as the mask dripping down.

On the other hand, in the conventional three-leaf mask, the upper and lower lobes are in close contact with the middle lobe during distribution or storage, and when used, the upper and lower lobes are spread up and down to be used, so it is more comfortable to wear compared to the two-leaf mask. There is an improvement advantage.

However, such a conventional three-leaf mask has a disadvantage in that it is necessary to minimize the possibility of contamination by reducing contact with the inner surface of the mask due to the folded structural characteristics of the upper and lower lobes. There is a problem in that the leakage rate increases and the barrier properties of the contaminated particles are lowered.

Accordingly, the present invention was invented to solve the problems of the prior art as described above,

The middle lobe 102 that covers the center of the face, and the first upper lobe fusion junction 110 and the first lower lobe fusion junction line 120 in the upper and lower sides of the middle lobe 102, respectively, are curved and joined along the middle lobe 102 In a mask comprising a mask body 100 comprising an upper lobe 101 and a lower lobe 103 provided to be folded or unfolded toward and a strap 104 connected to both sides of the middle lobe 102,

The first upper lobe fusion junction 110 and the first lower lobe fusion junction 120 are in a state in which the inner surfaces of the upper lobe 101 and the middle lobe 102, and the lower lobe 103 and the middle lobe 102 are in contact with each other. It is formed by fusion along the upper and lower edges of the middle lobe 102,

On one side of the first upper lobe fusion junction line 110,

In a state in which the upper lobe 101 is developed from the middle lobe 102, one side of the first upper lobe fusion junction 110 is stacked on one side of the middle lobe 102 and the two upper lobes 101 in three layers. Including the second upper lobe fusion junction (130a ~ 130b) formed by fusion of three layers,

The second upper lobe fusion junction (130a ~ 130b) is, when the upper lobe 101 is developed from the middle lobe 102, the second upper lobe junction imaginary line 131 is formed on one side of the first upper lobe fusion junction line 110 to form a spreadability. configured to improve.

In addition, on one side of the first lower lobe fusion junction line 120,

In a state where the lower lobe 103 is developed from the middle lobe 102, one side of the first lower lobe fusion junction 120 is on the site where one layer of the middle lobe 102 and the two layers of the lower lobe 103 are laminated in three layers. Including a second lower lobe fusion junction (140a) formed by fusion of three layers,

The second lower lobe fusion junction 140a forms a second lower lobe junction imaginary line 141 on one side of the first lower lobe fusion junction line 120 when the lower lobe 103 is developed from the middle lobe 102, and expandability configured to improve

In addition, in the central part of the mask body 100,

In a state in which the upper lobe 101 and the lower lobe 103 are deployed from the middle lobe 102, the mask body 100 is folded left and right to form two layers of the upper lobe 101, or two layers of the middle lobe 102 and the two layers. 4 layers consisting of the upper lobe 101, or 4 layers consisting of the middle lobe 102 and 2 layers of the lower lobe 103, or 2 layers or 4 layers are fusion-bonded on the area laminated with the lower lobe 103 of 2 layers Including the second central fusion junction (150a ~ 150b) formed by

The second central fusion junction (150a to 150b) is a second central junction virtual line 151 in the longitudinal direction of the mask body 100 when the upper lobe 101 and the lower lobe 103 are deployed from the middle lobe 102. It is possible to achieve the purpose of improving the fit, ease of use, and sealability by forming it to secure the inner space.

The present invention provides a mask having a secondary melt junction point to differentiate the bonding structure of a folded mask consisting of upper, middle and lower lobes from the prior art.

In particular, the present invention has the advantage of significantly improving the wearing comfort and ease of use by forming a structure that secures a more advantageous space inside the mask body compared to the conventional two-leaf mask and three-leaf mask.

Therefore, when the mask of the present invention is worn by the user, the space between the nose and lips and the inner surface of the mask is expanded, making it easy to breathe, and the high ventilation rate reduces moisture condensation inside, thereby improving the phenomenon of sweat and water forming on the face. derive an effect

In addition, the present invention minimizes the possibility of contamination due to contact in the process of unfolding the mask by hand by improving the spreadability and sealing property, and is configured so that the outline is as close as possible while the mask is fully unfolded along the facial curves to prevent dripping. Of course, there is an effect of blocking the leakage rate and the inflow of contaminated particles so that it can be used safely.

1 is a perspective view of a mask having a secondary fusion junction according to the present invention;
2 is a side view of a mask having a secondary melt junction in accordance with the present invention;
3 is a cross-sectional view of part A and part B of FIG. 2;
Figure 4 is a cross-sectional view of part C of Figure 2;
5 is a side view showing the second upper lobe junction imaginary line, the second lower lobe junction imaginary line, and the second central junction imaginary line of the mask having a secondary melting junction point according to the present invention.
6 is a perspective view of a three-leaf mask according to the prior art.

Hereinafter, the configuration and operation according to a preferred embodiment of the mask having a secondary fusion junction of the present invention will be described in detail with reference to the accompanying drawings. In the following description, a detailed description of parts that can be easily implemented by those skilled in the art may be omitted.

1 is a perspective view of a mask having a secondary fusion junction according to the present invention, FIG. 2 is a side view of a mask having a secondary fusion junction according to the present invention, FIG. 3 is a cross-sectional view of parts A and B of FIG. 2 , FIG. 4 is 2 is a cross-sectional view of part C, FIG. 5 is a side view showing the second upper lobe junction imaginary line, the second lower lobe junction imaginary line, and the second central junction imaginary line of the mask having a secondary fusion junction point according to the present invention, FIG. 6 is a conventional view A perspective view of a three-leaf mask according to the technology is shown.

The mask having a secondary fusion junction to which the technology of the present invention is applied is made to improve the fit and usability by configuring a mask having a secondary fusion junction by differentiating the junction structure of the folded mask consisting of upper, middle, and lower lobes, Specifically, it is as follows.

1 and 2, the mask having a secondary melting junction of the present invention has a middle lobe 102 covering the center of the face, and a first upper lobe melting in a curved shape at the upper and lower sides of the middle lobe 102, respectively. A mask body 100 consisting of an upper lobe 101 and a lower lobe 103 provided to be folded or unfolded toward the middle lobe 102 by joining along the junction line 110 and the first lower lobe fusion junction line 120, and the middle lobe ( It is configured to include a strap 104 connected to both sides of the 102).

The mask body 100 is formed by cutting and processing a thermoplastic material fabric such as a nonwoven fabric or felt into the shape of each of the middle lobe 102, the upper lobe 101, and the lower lobe 103, and then combining them with each other. The elastic straps 104 are connected to both sides so that they can be hung on the ears.

The middle lobe 102, the upper lobe 101, and the lower lobe 103 can form a multi-layered structure by embedding a filter between the integument and the endothelium, and the upper lobe 101 has a predetermined nose so that it can flex and extend according to the user's nose bridge. A clip 105 may be incorporated.

The first upper lobe fusion junction 110 and the first lower lobe fusion junction 120 joining the upper lobe 101 and the middle lobe 102, the lower lobe 103 and the middle lobe 102 are the upper lobe 101 and the lower lobe ( 103) is formed in a streamlined shape so that the mask body 100 is three-dimensionally curved along the facial contour when deployed, and is configured to be integrated with each other by thermal fusion.

The first upper lobe fusion junction 110 and the first lower lobe fusion junction 120 are in a state in which the inner surfaces of the upper lobe 101 and the middle lobe 102, and the lower lobe 103 and the middle lobe 102 are in contact with each other. It is formed by fusion along the upper and lower edges of the middle lobe 102 .

The first upper lobe fusion junction 110 is provided to mutually fuse and combine the one-ply middle lobe 102 and the one-ply upper lobe 101 with the upper lobe 101 folded toward the middle lobe 102 .

On one side of the first upper lobe fusion junction line 110, the upper lobe 101 is developed from the middle lobe 102 to form second upper lobe fusion junctions 130a to 130b.

As shown in Figure 3, the second upper lobe fusion junction (130a ~ 130b) is one side of the middle lobe of the first upper lobe fusion junction 110 in a state in which the upper lobe 101 is developed from the middle lobe 102. (102) and the two-ply upper lobe 101 are formed by fusion-bonding three-ply on the three-ply laminated portion.

The second upper lobe fusion junctions 130a to 130b implement an action point function that supports the fully developed state of the upper lobe 101, and the middle lobe 102 and the upper lobe 101 by the first upper lobe fusion junction 110. In a state in which the two layers are stacked, a total of three layers are stacked by the unfolding of the upper leaf 101 to form the second upper leaf fusion junctions 130a to 130b.

As shown in FIG. 5, the second upper lobe fusion junctions 130a to 130b form one or a plurality of bars at arbitrary intervals, and when the upper lobe 101 is developed from the middle lobe 102, the first upper lobe fusion junction 110 ) is configured to improve the spreadability by forming the second upper lobe junction virtual line 131 on one side.

The second upper lobe junction virtual line 131 forms a virtual development line in which the upper lobe 101 is developed based on the second upper lobe fusion junction points 130a to 130b on one side of the first upper lobe fusion junction line 110 .

Therefore, by the second upper lobe fusion junctions 130a to 130b and the second imaginary second upper lobe junction 131, the phenomenon that the upper lobe 101 cannot fully unfold when the mask is worn is excluded and the shape is maintained while following the outline. It is possible to derive the effect of improving the adhesion to the face and sealing properties.

The first upper lobe fusion junction 110 is provided such that the one-ply middle lobe 102 and the one-ply lower lobe 103 are fused to each other in a state in which the lower lobe 103 is folded toward the middle lobe 102 .

On one side of the first lower lobe fusion junction line 120, the lower lobe 103 is developed from the middle lobe 102 to form a second lower lobe fusion junction 140a.

As shown in FIG. 3, the second lower lobe fusion junction 140a is one side of the first lower lobe fusion junction 120 in a state in which the lower lobe 103 is developed from the middle lobe 102. (102) and the lower lobe 103 of the two layers are formed by fusion-bonding the three layers on the portion where the three layers are stacked.

The second lower lobe fusion junction 140a implements an action point function that supports the fully developed state of the lower lobe 103, and the middle lobe 102 and the lower lobe 103 by the first lower lobe fusion junction 120 In a state in which the two layers are stacked, a total of 3 layers are stacked by the unfolding of the lower leaf 103 to form the second lower leaf fusion junction 140a.

As shown in FIG. 5, the second lower lobe fusion junction 140a forms one or a plurality of bars at arbitrary intervals, and when the lower lobe 103 is developed from the middle lobe 102, the first lower lobe fusion junction line 120 ) is configured to improve the spreadability by forming the second lower lobe junction virtual line 141 on one side.

The second lower lobe junction imaginary line 141 forms a virtual development line in which the lower lobe 103 is developed based on the second lower lobe fusion junction 140a on one side of the first lower lobe fusion junction line 120 . .

Therefore, by the second lower lobe fusion junction 140a and the second lower lobe junction imaginary line 141, the phenomenon that the lower lobe 103 cannot fully unfold when the mask is worn is excluded and the shape is maintained while following the outline. It is possible to derive the effect of improving the adhesion to the face and sealing properties.

On the other hand, the second upper lobe fusion junction 130a to 130b and the second lower lobe fusion junction 140a are at 1 to 30 places on one side of the first upper lobe fusion junction 110 and the first lower lobe fusion junction 120. It is formed by fusion of three layers, but is configured to be formed in one or a plurality of shapes selected from the group consisting of circles, ellipses, and polygons with a maximum diameter of 0.01 to 5 mm.

In the embodiment of the present invention, the configuration in which the second upper lobe fusion junctions 130a to 130b and the second lower lobe fusion junction 140a are formed in six places is exemplified, but the size of the mask and the second upper lobe fusion junction 130a to 130b) and the number of the second lower lobe fusion junction 140a can be increased or decreased within the above range according to the size of the diameter.

When the maximum diameter of the second upper lobe fusion junction 130a to 130b and the second lower lobe fusion junction 140a is out of the above range, the fusion strength of the corresponding junction is lost in the course of use or the upper and lower lobe 101 and lower lobe 103 It is difficult to sufficiently apply the supporting force when unfolding, or it may be difficult to derive the folded state of the upper lobe 101 and the lower lobe 103, so it is configured in the above range.

In addition, in the central portion of the mask body 100, the upper lobe 101 and the lower lobe 103 are developed from the middle lobe 102 to form second central fusion junctions 150a to 150b.

The second central fusion junction 150a to 150b is a two-layer upper lobe 101 by folding the mask body 100 left and right in a state in which the upper lobe 101 and the lower lobe 103 are developed from the middle lobe 102. , or 4 folds consisting of a middle lobe 102 of 2 layers and an upper lobe 101 of 2 folds, or 4 folds of a middle lobe 102 of 2 folds and a lower lobe 103 of 2 folds, or a lower lobe of 2 folds 103 ) is formed by fusion-bonding 2 or 4 layers on the laminated area.

The second central fusion junction 150a to 150b implements an action point function of supporting the central portion of the mask body 100 to maintain its three-dimensional shape in a state in which the upper lobe 101 and the lower lobe 103 are deployed. , the upper lobe 101, the middle lobe 102, and the lower lobe 103, depending on the formation position on the 2 or 4 layers as shown in Fig. 4 to form the second central fusion junction (150a ~ 150b) .

As shown in FIG. 5, the second central fusion junction 150a to 150b forms one or a plurality of bars at arbitrary intervals, and the upper lobe 101 and the lower lobe 103 are masked when deployed from the middle lobe 102. The second central junction virtual line 151 is formed in the longitudinal direction of the main body 100 to secure the internal space.

The second central junction virtual line 151 forms a virtual support line that three-dimensionally supports the central portion of the mask body 100 based on the second central fusion junction 150a to 150b in the central portion of the mask body 100 . do.

Therefore, by the second central fusion junctions 150a to 150b and the second central junction virtual line 151, when the mask is worn, the space between the nose and lips and the inner surface of the mask is enlarged, making it easy to breathe and absorb moisture. It is possible to derive effects such as reduction.

On the other hand, the second central fusion junction (150a to 150b) is formed by fusion bonding 2 or 4 layers at 1 to 10 places in the central part of the mask body 100, but with a maximum diameter of 0.01 to 5 mm circles, ellipses, polygons It is configured to be formed in one or a plurality of shapes selected from the group comprising.

In the embodiment of the present invention, the configuration of forming the second central fusion junctions 150a to 150b in two places has been exemplified, but depending on the size of the mask or the diameter of the second central fusion junction 150a to 150b The number can be increased or decreased within the above range.

If the maximum diameter of the second central fusion junction 150a to 150b is out of the above range, the fusion force of the junction point is lost in the course of use, or it is difficult to sufficiently apply the supporting force when the upper lobe 101 and the lower lobe 103 are deployed. , or it may be difficult to derive the folded state of the upper lobe 101 and the lower lobe 103, so it is configured in the above range.

In addition, as another embodiment, by forming a plurality of the second central fusion junctions 150a to 150b at small intervals, the central portion of the mask body 100 is in a shape similar to a two-leaf mask (sea beak type) having a straight shape. will be able to transform

The state of use of the mask having the secondary fusion junction to which the technology of the present invention is applied, which is configured as described above, is as follows. Since the following description is given by way of preferred embodiments of the present invention, the present invention is not limited by the following examples, and it will be natural that various modifications may be provided within the scope of the present invention. .

In the mask having a secondary fusion junction of the present invention, the upper lobe 101, the middle lobe 102, and the lower lobe 103 are combined along the first upper lobe fusion junction line 110 and the first lower lobe fusion junction line 120 to form a mask body. Forming 100, on one side of the first upper lobe fusion junction 110, each of the upper lobe 101 and the lower lobe 103 is developed from the middle lobe 102, and the second upper lobe fusion junction 130a-130b is fused in three layers. ) and the second lower lobe fusion junction 140a is formed. In addition, in the central portion of the mask body 100, the upper lobe 101 and the lower lobe 103 are developed from the middle lobe 102 to form second central fusion junctions 150a to 150b in which two or four layers are fused.

Therefore, when the user performs the operation of unfolding the ear straps 104 coupled to both sides of the middle lobe 102 with both hands when wearing the mask, the second upper lobe fusion junction 130a to 130b and the second lower lobe fusion junction 140a ) serves as an action point in the direction in which the upper lobe 101 and the lower lobe 103 are fully deployed, so that the upper lobe 101 and the lower lobe 103 can be easily deployed without hand contact. The second upper lobe fusion junction 130a to 130b and the second lower lobe fusion junction 140a are the first upper lobe fusion junction 110 and the first when the upper lobe 101 and lower lobe 103 are developed from the middle lobe 102. On one side of the lower fusion junction line 120, the upper lobe 101 and the lower lobe 103 are completely unfolded while naturally forming the second imaginary upper lobe junction 131 and the imaginary second lower lobe junction 141 on one side.

At the same time, the second central fusion junction 150a to 150b functions as an action point for maintaining the three-dimensional structure of the central part of the mask body 100 in the state in which the upper lobe 101 and the lower lobe 103 are deployed. It supports so that the shape of the central part does not collapse or the outline of the mask body 100 is spaced apart from the face. The second central fusion junctions 150a to 150b naturally form the second central junction virtual line 151 in the longitudinal direction of the mask body 100 when the upper lobe 101 and the lower lobe 103 are deployed from the middle lobe 102. While separating the inner surface from the user's nose and lips, to secure the internal space.

The mask having a secondary melting junction point according to the present invention as described above differentiates the bonding structure of the folded mask consisting of the upper, middle, and lower lobes from the prior art to form a more advantageous structure to secure space inside the mask body, and expandability and Provided is a mask that significantly improves sealing properties.

Therefore, the present invention provides a comfortable fit and improved breathability by increasing the space between the nose and lips and the inner surface of the mask when the user wears it, and reducing moisture condensation inside due to the high ventilation rate. It has the effect of improving the usability.

In addition, the present invention minimizes the possibility of contamination caused by unavoidable contact in the process of unfolding the mask by hand, and acts to ensure that the outline is as close as possible while the mask is fully unfolded along the facial curves to prevent dripping, leakage rate and contaminated particles There are various effects such as blocking the inflow of

100: mask body
101: upper leaf
102: mid
103: lower yeop
104: strap
105: nose clip
110: first upper lobe fusion junction
120: first lower lobe fusion junction
130a~130b: second upper leaf fusion junction
131: secondary upper lobe junction virtual line
140a: second lower lobe fusion junction
141: second inferior lobe junction virtual line
150a~150b: Second central fusion junction
151: 2nd central junction virtual line

Claims (5)

The middle lobe 102 that covers the center of the face, and the first upper lobe fusion junction 110 and the first lower lobe fusion junction line 120 in the upper and lower sides of the middle lobe 102, respectively, are curved in the form of a joint along the middle lobe 102 In a mask comprising a mask body 100 comprising an upper lobe 101 and a lower lobe 103 provided to be folded or unfolded toward, and a strap 104 connected to both sides of the middle lobe 102,
The first upper lobe fusion junction 110 and the first lower lobe fusion junction 120 are in a state in which the inner surfaces of the upper lobe 101 and the middle lobe 102, and the lower lobe 103 and the middle lobe 102 are in contact with each other. It is formed by fusion along the upper and lower edges of the middle lobe 102,
On one side of the first upper lobe fusion junction line 110,
In a state in which the upper lobe 101 is developed from the middle lobe 102, one side of the first upper lobe fusion junction 110 is stacked on one side of the middle lobe 102 and the two upper lobes 101 in three layers. Including the second upper leaf fusion junction (130a ~ 130b) formed by fusion of three layers,
The second upper lobe fusion junction (130a ~ 130b) is, when the upper lobe 101 is developed from the middle lobe 102, the second upper lobe junction imaginary line 131 is formed on one side of the first upper lobe fusion junction line 110 to form a spreadability. A mask having a secondary melt junction, characterized in that it is configured to improve. The method of claim 1,
On one side of the first lower lobe fusion junction line 120,
In a state where the lower lobe 103 is developed from the middle lobe 102, one side of the first lower lobe fusion junction 120 is on the site where one layer of the middle lobe 102 and the two layers of the lower lobe 103 are laminated in three layers. Including a second lower lobe fusion junction (140a) formed by fusion of three layers,
The second lower lobe fusion junction 140a forms a second lower lobe junction imaginary line 141 on one side of the first lower lobe fusion junction line 120 when the lower lobe 103 is developed from the middle lobe 102 to form expandability. Mask having a secondary melt junction, characterized in that configured to improve the. The method of claim 1,
In the central part of the mask body 100,
In a state in which the upper lobe 101 and the lower lobe 103 are deployed from the middle lobe 102, the mask body 100 is folded left and right to form two layers of the upper lobe 101, or the two layers of the middle lobe 102 and the two layers. 4 layers consisting of the upper lobe 101, or 4 layers consisting of the middle lobe 102 and 2 layers of the lower lobe 103, or 2 layers or 4 layers are fusion-bonded on the area laminated with the lower lobe 103 of 2 layers and a second central fusion junction (150a to 150b) formed by
The second central fusion junction 150a to 150b is a second central junction virtual line 151 in the longitudinal direction of the mask body 100 when the upper lobe 101 and the lower lobe 103 are developed from the middle lobe 102. A mask having a secondary fusion junction, characterized in that it is formed to secure an internal space. 3. The method according to claim 1 or 2,
The second upper lobe fusion junction 130a to 130b and the second lower lobe fusion junction 140a formed on one side of the first upper lobe fusion junction 110 and the first lower lobe fusion junction 120 are,
One selected from the group comprising circles, ellipses, and polygons with a maximum diameter of 0.01 to 5 mm, but formed by fusion bonding three layers at 1 to 30 places on one side of the first upper lobe fusion junction line 110 and the first lower lobe fusion junction line 120 Or a mask having a secondary fusion junction, characterized in that it is configured to be formed in a plurality of shapes. 4. The method of claim 3,
The second central fusion junction (150a ~ 150b) is,
Formed by fusing 2 or 4 layers at 1 to 10 places in the central part of the mask body 100, and forming one or more shapes selected from the group consisting of circles, ellipses, and polygons with a maximum diameter of 0.01 to 5 mm A mask having a secondary melt junction, characterized in that.

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