KR20200128846A - Mask with adjustable straps and its manufacturing method - Google Patents

Abstract

The present invention relates to a mask with adjustable straps and a manufacturing method thereof. According to the present invention, the mask comprises: first and second wing parts (120, 130) welded on the upper and lower sides of a main body part (110) covering a user′s face along first and second curved cut lines (150, 160) to be folded or unfolded, and straps (140) connecting both sides of the main body part (110). Ends of both the sides of the first and second cut lines (150, 160) are spaced apart from each other and have strap adjustment parts (170) coupling the straps (140) disposed on the outside thereof. The strap adjustment part (170) comprises: a first strap coupling part (172) including a first wing extension part (171) extended from the first wing part (120) and a main body extension part (178) extended from the main body part (110) to mutually overlap the inner surface of an opposite part, and coupling an arbitrary section of the strap (140) therebetween; a second strap coupling part (174) including a second wing extension part (173) extended from the second wing part (130) and spaced apart from the first wing extension part (173) to mutually overlap an inner surface with the main body extension part (178), and coupling an arbitrary section of the strap (140) therebetween; and a strap exposure part (175) exposing a part of the strap (140) between the first and second wing extension parts (171, 173) to adjust length. Accordingly, convenience in use and manufacturing is provided through a simplified structure of the strap adjustment part.

Description

Strap length adjustment mask and its manufacturing method {MASK WITH ADJUSTABLE STRAPS AND ITS MANUFACTURING METHOD}

The present invention relates to a strap length adjustment mask and a method of manufacturing the same, and more particularly, the use of a strap adjustment unit made of a more simplified structure to adjust the length of the straps provided on both sides so as to hang on the ears when wearing the mask And a mask having convenience in manufacturing.

Air quality is frequently deteriorated due to high concentrations of fine dust generated from fossil fuels used in automobiles and factories in recent years, as well as yellow dust moving with strong winds from dry areas of continents in spring. Yellow dust and fine dust not only cause respiratory diseases such as bronchitis, asthma, and breathing difficulties, but also have a great effect on health, such as irritation such as rash and itchiness on exposed skin. Therefore, it is desirable to minimize the exposed part of the body and wear a mask when going out.

In general, masks are manufactured by molding them to be worn on the face using materials such as cotton, synthetic fibers, nonwoven fabrics, felts, etc. to block inhalation or scattering of dust or bacteria floating in the air through the nose or mouth. Masks are contaminated as the wearing time elapses, and there are problems such as physical damage or deterioration of blocking performance during washing, and thus, most disposable masks have recently been used.

Looking at the schematic structure of a conventional mask, a predetermined filter is embedded in a body molded in a cup or folded shape to cover the face portion, and a strap for hanging on the ear is attached to both sides. In the case of a disposable mask, a folding-type mask having ease of manufacture, handling and portability is mainly used.

On the other hand, the mask must be worn in a state in which the outline of the mask is in close contact with the user's face to effectively exhibit the blocking performance. The strap of the mask is usually provided with a band material that can be stretched according to the size of the user's face, but in order to obtain a three-dimensional shape while the mask is in close contact with the face, a structure that can adjust the length of the strap is required. Let's look at the configuration related to regulation.

As an example, in Korean Utility Model No. 20-2017-0003219, a cylindrical control tube is formed to insert the central part of the hanger strap formed to be hung on the user's ears at both ends of the mask body covering the user's face. It constitutes a strap length adjusting device of a mask comprising an adjusting part formed to adjust the length and a fixing part formed of a ring piece formed with fixing rings at both ends to connect the center of the hook that has passed through the adjusting tube of the adjusting part.

As another example, in Korean Utility Model No. 20-0348888, there is a control unit body that is fixed to both sides of the mask body and has a hook band connected to each other, and in a direction facing each other while alternating along the longitudinal direction of the control unit body. An opening is formed to constitute a hanging band adjusting device for a mask including a band fixing portion made of at least one first support piece and at least one second support piece supporting the hook band.

As another example, in Korean Utility Model No. 20-0467542, the first hole, the second hole, and the third hole are provided in the upper left and right sides of the body to adjust the length of the straps attached to both sides of the mask body. It includes a string adjustment part arranged on a mutually different line, and one side of the string sequentially passes through the first hole, the second hole, and the third hole of the string adjustment part, and a stopper is attached to the end, and the other side of the string is at the bottom of the body A strap length-adjustable mask is configured with a stopper attached to the end through the formed through hole.

Korea Open Utility Model No. 20-2017-0003219 (2017.09.15) Korean Utility Model Registration No. 20-0348888 (2004.04.29) Korean Utility Model Registration No. 20-0467542 (2013.06.18) Korean Utility Model Registration No. 20-0488541 (2019.02.19)

The mask to which the prior art as described above is applied is provided with a separate adjusting device for adjusting the length of the hanging string to be inserted into the hanging string, and the length is adjusted by moving the position of the adjustment tube.

However, such a configuration of the prior art involves a process of separately manufacturing the adjusting device and installing it on the hook strap, and the adjusting device is located around the ear, thereby affecting the fit.

As another example, a mask to which the prior art is applied is configured to adjust the length while supporting the hanging band by installing a hook band adjusting device forming a band fixing part and a gripping guide piece on both sides of the mask body.

However, the conventional control device is also separately manufactured and installed on both sides of the mask, and a plurality of first and second support pieces and a gripping guide piece for supporting the hanging band are provided, thereby increasing the weight of the mask to make it comfortable to wear. And problems in handling, and problems in manufacturing and installation.

On the other hand, as another example, a mask to which the prior art is applied is provided with a string adjusting part forming a plurality of holes in the upper left and right of the main body, and configured to pass one end of the string with a stopper through the holes. It forms a relatively simple string length adjustment structure compared to the field.

However, in the manufacturing process of connecting the string to the mask body, the conventional mask must be accompanied by an operation of passing the string in a diagonal direction through holes arranged on different lines of the string adjusting portion. In addition, in the process of adjusting the length of the string, the string is pulled from the top from the top of the other end fixed to the lower portion of the body, so there is a disadvantage in that it is difficult to adjust the length of both strings while wearing a mask.

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

The first and second wings 120 and 2 are folded or unfolded by fusion bonding along the curved first and second extension lines 150 and 160 at the upper and lower sides of the body portion 110 covering the face. In a mask having a wing portion 130 and straps 140 connected to both sides of the body portion 110,

Both ends of the first and second extension lines 150 and 160 are spaced apart from each other, and an outer side thereof includes a strap adjustment unit 170 for coupling the strap 140,

The strap adjustment unit 170,

A first wing extension portion 171 extending from the first wing portion 120 and a body extension portion 178 extending from the body portion 110 are provided to overlap each inner surface, and a strap between them The first strap coupling portion 172 for coupling the arbitrary section of 140,

It extends from the second wing portion 130, but has a second wing extension portion 173 that is spaced apart from the first wing extension portion 171 to overlap the body extension portion 178 and the inner surface, and between them A second strap coupling portion 174 for coupling an arbitrary section of the strap 140,

It comprises a strap exposed portion 175 for adjusting the length by exposing a part of the strap 140 between the first wing extension portion 171 and the second wing extension portion 173.

In addition, in the manufacturing method of the strap length adjustment mask made of the above configuration,

A preparation step (S10) of embedding a filter in the body portion 110 and the first wing portion 120 and the second wing portion 130 and embedding a wire in the first wing portion 120,

A first cutting step (S20) of cutting the first wing portion 120 and the second wing portion 130,

The inner surfaces of the body portion 110 and the first wing portion 120, and the body portion 110 and the second wing portion 130 are overlapped with each other, and each end portion is fused in a curved shape, but the ends are first separated from each other. The development line 150 and the second extension line 160 are formed, and the main body portion 110 and the first wing extension portion 171, the body portion 110 and the second wing extension portion 173 are formed in the longitudinal direction. A first bonding step (S30) of fusing to form a first bonding line 176,

A second cutting step (S40) of cutting the outer edges of the main body 110 and the main body extension 178,

The inner surface where the first and second blade extensions 171 and 173 and the body extension 178 are overlapped starting from both ends of the first and second extension lines 150 and 160 Strap preparation step (S50) to open the gap and,

Strap receiving step (S60) for receiving the strap 140 in the longitudinal direction between the first wing extension 171 and the second wing extension 173 and the inner surface of the body extension 178,

From the left and right sides of the accommodated strap 140, the body portion 110, the first wing extension portion 171, the body portion 110 and the second wing extension portion 173 are fused in the longitudinal direction to form a second coupling line ( 177), and a second bonding step (S70) of fusing the first wing extension 171 and the second wing extension 173 and the body extension 178 based on the second coupling line 177 By including, it is possible to achieve the purpose of providing a mask having usability and manufacturing convenience through a simplified strap adjustment unit structure.

The present invention provides a mask provided with a strap adjustment unit so that the length of the straps provided on both sides can be adjusted to be worn on the ears when the mask is worn.

In particular, the present invention has the advantage of simplifying the connection and length adjustment structure between the mask and the strap by configuring the mask body in the form of having a strap adjustment unit different from the configuration in which a separate adjustment device is mounted on the mask. have.

Therefore, the present invention has superior wearing feeling compared to the prior art, and ease of use such as easy adjustment of the length of the strap while wearing, and the operation of connecting the strap to the mask body can also be easily performed using existing facilities. There is an advantage of having ease of manufacture.

1 is a perspective view of a strap length adjustment mask according to the present invention.
Figure 2 is a front view of the strap length adjustment mask according to the present invention.
Figure 3 is a rear view showing the inside of the strap length adjustment mask according to the present invention.
Figure 4 is a rear view of the folded state of the strap length adjustment mask according to the present invention.
5 is a schematic flowchart of a method of manufacturing a strap length adjusting mask according to the present invention.
Figure 6 is an example of the state of use of the strap length adjustment mask according to the present invention.

Hereinafter, a configuration and operation according to a preferred embodiment of a strap length adjusting mask and a method of manufacturing the same according to the present invention will be described in detail with reference to the accompanying drawings. In the following description, detailed descriptions of parts that can be easily implemented by those of ordinary skill in the art may be omitted. In addition, since the following description describes the present invention by way of a preferred embodiment, the present invention is not limited to the following examples, and it is natural that various modifications may be provided within the scope not departing from the scope of the present invention. will be.

1 is a perspective view of a strap length adjustment mask according to the present invention, Figure 2 is a front view of the strap length adjustment mask according to the present invention, Figure 3 is a rear view showing the inside of the strap length adjustment mask according to the present invention, Figure 4 Is a rear view of a folded state of a strap length adjusting mask according to the present invention, FIG. 5 is a schematic flowchart of a method for manufacturing a strap length adjusting mask according to the present invention, and FIG. 6 is an exemplary diagram illustrating a use state of a strap length adjusting mask according to the present invention. It is shown.

The strap length adjustment mask to which the technology of the present invention is applied and its manufacturing method consist of a strap adjustment unit 170 having a more simplified structure so that the length of the strap provided on both sides can be adjusted so that the mask is worn on the ear. And a mask having convenience in manufacturing.

For this purpose, the strap length adjustment mask of the present invention includes a body portion 110 covering a user's face as shown in FIG. 1, and a first wing portion that is folded or unfolded by being coupled to the upper and lower sides of the body portion 110 It is configured to form a strap adjustment unit 170 on both sides of the mask including the 120 and the second wing portion 130 and the strap 140 connected to both sides of the body portion 110.

The mask of the present invention is provided in a manner of folding or unfolding the first wing portion 120 and the second wing portion 130 on the upper and lower sides of the body portion 110.

The body portion 110, the first wing portion 120, and the second wing portion 130 are made of a fabric cut into a predetermined shape by processing a thermoplastic material such as non-woven fabric or felt to be suitable for use as a mask. A predetermined filter may be built into the body portion 110, the first wing portion 120, and the second wing portion 130, and the first wing portion 120 has a predetermined wire so as to be in close contact with the user's nose bridge. Can be built in.

The first and second blades 120 and 130 are fused along the first and second curved lines 150 and 160 at the upper and lower sides of the main body 110 Combine.

The first and second extension lines 150 and 160 form a facial contour when unfolding the first and second wings 120 and 130 from the upper and lower sides of the body part 110. It is designed in a streamlined shape so that it curves in three dimensions.

The first extension line 150 and the second extension line 160 are formed into a dotted line, a connection line, or a figure by ultrasonic fusion, and the body portion 110, the first wing portion 120, and the second wing portion 130 Are interconnected. The first extension line 150 and the second extension line 160 formed by ultrasonic welding have a strong bonding force compared to the use of an existing adhesive and lead to a clean finish.

On the other hand, both ends of the first extension line 150 and the second extension line 160 are spaced apart from each other, and a strap adjustment part 170 for coupling the strap 140 is provided on the outside thereof.

The first wing portion 120 is coupled to the upper side of the inner surface of the body portion 110 and the second wing portion 130 is provided to be folded and unfolded by being coupled to the lower side of the inner surface of the body portion 110, the It is provided to form a strap exposed portion 175 on the strap adjustment unit 170 to be described later by spaced apart both ends of the first and second extension lines 150 and 160 by a predetermined distance up and down.

A strap adjustment unit 170 is formed outside the first and second expansion lines 150 and 160, and the strap adjustment unit 170 is a first strap coupling unit 172 in the upper and lower directions. And a strap exposed portion 175 and a second strap coupling portion 174 are formed.

As shown in FIG. 3, the first strap coupling portion 172 includes a first blade extension 171 extending from the first blade 120, and a body extension portion extending from the body 110 ( 178 is provided so as to overlap each inner side with each other, and to couple an arbitrary section of the strap 140 therebetween.

The second strap coupling portion 174 extends from the second wing portion 130, but includes a second wing extension portion 173 spaced apart from the first wing extension portion 171, and the body extension portion 178 and The inner surfaces are overlapped with each other, and an arbitrary section of the strap 140 is coupled therebetween.

The strap exposed portion 175 is provided to adjust the length by exposing a part of the strap 140 between the first wing extension 171 and the second wing extension 173.

The strap 140 is based on a section accommodated in the first strap coupling portion 172 and the second strap coupling portion 174, and the portion exposed through the strap exposed portion 175 from the inside of the mask and the mask It is configured to be used by relatively adjusting the length of the section that is exposed to the outside of both sides and caught on the ear.

3 and 4, in the first strap coupling portion 172 and the second strap coupling portion 174, both sides of the first blade extension 171 and the second blade extension 173 The ends are provided with a length shorter than both ends of the body extension part 178. This makes it easier to open the gap between the first wing extension 171 and the second wing extension 173 and the overlapped body extension 178 in the preparation step for accommodating the strap during the manufacture of the mask, and will be described later. When cutting the outside of the body part 110 and the body extension part 178 with ultrasonic waves in the second cutting step (S40) to be performed, the outside of the body extension part 178 and the first wing extension part 171 and the body extension It is to derive an effect for preventing the outer periphery of the part 178 and the second wing extension 173 from being fused.

In addition, the first strap coupling portion 172 and the second strap coupling portion 174 have a body extension part 178 and a first blade extension part 171, a body extension part 178 and a second blade extension part ( The first and second coupling lines 176 and 177 are formed on the left and right sides of the strap 140 by fusing 173 in a plurality of rows in the longitudinal direction.

The first coupling line 176 and the second coupling line 177 are ultrasonically welded to form a right angle with the upper and lower ends of the body extension 178, the first wing extension 171, and the second wing extension 173. By forming a dotted line or a connecting line and joining each other. This is to increase the adhesion of the mask by the strap 140 tensioning the upper and lower ends of the main body 110. The first bonding line 176 and the second bonding line 177 formed by ultrasonic welding have a strong bonding force compared to the use of conventional adhesives and lead to a clean finish.

The strap 140 in a state accommodated in the first strap coupling portion 172 and the second strap coupling portion 174 by the first coupling line 176 and the second coupling wire 177 is It is provided to have a frictional force according to the material characteristics of the first wing extension 171 and the second wing extension 173 to maintain a controlled length.

A configuration of a method for manufacturing a strap length adjusting mask to which the technology of the present invention is applied, which is configured as described above, is as follows.

The mask manufactured by the manufacturing method of the present invention is prepared by using a fabric processed from a thermoplastic material such as a non-woven fabric or felt to be suitable for use as a mask, and the preparation step (S10), the first cutting step (S20), and the first bonding step It is manufactured through (S30), a second cutting step (S40), a strap preparation step (S50), a strap receiving step (S60), and a second combining step (S70).

The preparation step (S10) includes the body portion 110 covering the face, and the first wing portion 120 and the second wing portion 130 that are folded or unfolded by being coupled to the upper and lower sides of the body portion 110. This is a step of embedding a filter and embedding a predetermined wire in the first wing part 120.

The first cutting step (S20) is a step of cutting the first wing portion 120 and the second wing portion 130. In the first cutting step (S20), the first wing extension portion 171 extending from both sides of the first wing portion 120, and the first wing extension portion 171 extending from both sides of the second wing portion 130 To form a second wing extension 173 to be spaced apart.

As shown in Fig. 4, the first wing portion 120, the first wing extension portion 171, the second wing portion 130 and the second wing extension portion 173 are formed in a subsequent step. It is formed by extending a virtual line corresponding to the first coupling line 176 perpendicular to the end of the improvement line 150 and the second extension line 160 as a boundary.

In the first coupling step (S30), the inner surfaces of the body portion 110 and the first wing portion 120, the body portion 110 and the second wing portion 130 are mutually overlapped, and each end portion is curved The first extension line 150 and the second extension line 160 are formed so that the ends are separated from each other, and the body portion 110 and the first wing extension portion 171, the body portion 110 and the second This is a step of forming the first coupling line 176 by fusing the wing extension part 173 in the longitudinal direction.

In the first coupling step (S30), the first extension wire 150 is coupled by ultrasonic fusion to form a first coupling line 176 that is a boundary line between the body extension part 178 and the first wing extension part 171, The second extension line 160 is ultrasonically fused to form a boundary line between the body extension portion 178 and the second wing extension portion 173 by ultrasonic welding.

The ultrasonic welding applied in the first bonding step (S30) is a method of melting and bonding by generating vibration at the corresponding part by ultrasonic waves to heat the surface of the thermoplastic fabric. To derive.

In the first coupling step (S30), the first extension line 150 and the second extension line 160 are formed as dotted lines or connecting lines, but may be formed as a plurality of lines depending on the design.

The second cutting step (S40) is a step of cutting the outer edges of the main body 110 and the main body extension 178.

That is, in the first cutting step (S20) and the second cutting step (S40), the body extension portion 178 extending from both sides of the body portion 110, and the first wing portion 120 extending from both sides. The first wing extension part 171 and the second wing extension part 173 are formed to extend from both sides of the second wing part 130 to be spaced apart from the first wing extension part 171. In particular, both ends of the first wing extension 171 and the second wing extension 173 are cut to a length shorter than both ends of the body extension 178 and open in the strap preparation step (S50) to be described later. Provides ease of operation, and when cutting the outer part of the main body part 110 and the main body extension part 178 with ultrasonic waves, the outer part of the main body extension part 178 and the first wing extension part 171 and the body extension part (178) and the outer edge of the second wing extension 173 to prevent fusion.

The strap preparation step (S50) extends the first blade extension part 171 and the second blade extension part 173 and the main body from both ends of the first and second extension wires 150 and 160. This is a step of opening between the overlapped inner surfaces of the portion 178.

That is, as shown in FIG. 4, in the strap preparation step (S50), the first coupling line 176 connecting both ends of the first and second extension lines 150 and 160 is used as a fold line. Starting from the extension part 178, the first wing extension part 171 and the second wing extension part 173 are opened. In the first cutting step (S20) and the second cutting step (S40), the ends of the first blade extension part 171 and the second blade extension part 173 are formed shorter than that of the main body extension part 178, so overlapped It derives the convenience of opening the sides more easily. For reference, the position of the fold line that opens the first blade extension part 171 and the second blade extension part 173 is a position corresponding to the first coupling line 176 formed in the first coupling step (S30). do.

The strap receiving step (S60) is a step of receiving the strap 140 in the longitudinal direction between the first wing extension 171 and the second wing extension 173 and the inner side of the body extension 178 . The strap 140 is positioned adjacent to each other by the ends of the first extension line 150 and the second extension line 160, but the main body extension part 178, the first extension part 171, and the second extension part ( The first coupling line 176 in the first coupling step (S30) and the second coupling line 177 in the following second coupling step (S70) are positioned to form a right angle with the upper and lower ends of the 173) together with the strap 140. Make it possible to form a vertical line.

In the second coupling step (S70), the body portion 110 and the first wing extension portion 171, the body portion 110 and the second wing extension portion 173 are formed on the left and right sides of the received strap 140. The second coupling line 177 is formed by fusion bonding in the longitudinal direction, and the first wing extension 171 and the second wing extension 173 and the body extension 178 are fused based on the second coupling line 177 This is the step.

In the second coupling step (S70), the second coupling line 177 is formed vertically adjacent to the ends of the first blade extension 171 and the second blade extension 173. Therefore, when wearing the mask, the strap 140 is bent at a right angle at the ends of the first and second coupling lines 176 and 177 to tension the upper and lower ends of the main body 110 to secure high adhesion.

The first strap coupling portion 172 and the second strap are coupled by the first coupling line 176 formed in the first coupling step (S30) and the second coupling wire 177 formed in the second coupling step (S70). In the part 174, a tunnel-type passage for accommodating a portion of the strap 140 is formed, and a strap exposed portion 175 formed between the first blade extension 171 and the second blade extension 173 is formed. It is manufactured to expose a portion of the strap 140 through. The first coupling line 176 in the first coupling step S30 and the second coupling line 177 in the second coupling step S70 are formed by separating the strap exposed portion 175 from each other as a starting point.

Therefore, the mask user manufactured according to the present invention refers to the section in which the strap 140 is accommodated in the first strap coupling portion 172 and the second strap coupling portion 174, and the strap exposed portion from the inside of the mask. The length of the section exposed through (175) and the section exposed to the outside of both sides of the mask and caught on the ears can be relatively varied to adjust the length, and the length is adjusted by frictional force due to the material characteristics of the mask and strap 140 You can keep it. In addition, in FIGS. 3 and 4 according to an embodiment of the present invention, the strap 140 exposed through the strap exposed portion 175 is shown to be exposed by pulling the strap 140 to the outside of both sides of the mask. If necessary, a form in which the strap 140 is exposed toward the inner center of the mask may also be easily implemented.

The strap length adjusting mask and its manufacturing method according to the present invention as described above include a mask having a strap adjusting unit 170 that is different from a configuration in which a separate adjusting device or a complex structure is mounted as in the prior art, and a method of manufacturing the same. Provides.

Therefore, the present invention simplifies the connection and length adjustment structure of the mask and the strap 140 compared to the prior art, so that the wearing feeling of the mask is excellent, and the user can easily adjust the length of the strap 140 even while wearing the mask. There is an excellent advantage.

In addition, the present invention eliminates the use of separate parts when connecting the strap 140 to the mask body, and has the ease of manufacturing, such as that it can be conveniently performed using an existing ultrasonic fusing device, so the possibility of industrial use is high. It is expected.

110: main body
120: first wing part
130: second wing part
140: strap
150: first development improvement
160: second development improvement
170: strap adjustment unit
171: first wing extension
172: first strap coupling portion
173: second wing extension
174: second strap coupling portion
175: strap exposed portion
176: first coupling line
177: second bonding line
178: main body extension

Claims (4)

The first and second wings 120 and 2 are folded or unfolded by fusion bonding along the curved first and second extension lines 150 and 160 at the upper and lower sides of the body portion 110 covering the face. In a mask having a wing portion 130 and straps 140 connected to both sides of the body portion 110,
Both ends of the first and second extension lines 150 and 160 are spaced apart from each other, and an outer side thereof includes a strap adjustment unit 170 for coupling the strap 140,
The strap adjustment unit 170,
A first wing extension portion 171 extending from the first wing portion 120 and a body extension portion 178 extending from the body portion 110 are provided to overlap each inner surface, and a strap between them The first strap coupling portion 172 for coupling the arbitrary section of 140,
It extends from the second wing portion 130, but has a second wing extension portion 173 that is spaced apart from the first wing extension portion 171 to overlap the body extension portion 178 and the inner surface, and between them A second strap coupling portion 174 for coupling an arbitrary section of the strap 140,
Strap length adjustment, characterized in that it comprises a strap exposed portion 175 for adjusting the length by exposing a part of the strap 140 between the first wing extension portion 171 and the second wing extension portion 173 Mask. The method of claim 1,
In the first strap coupling portion 172 and the second strap coupling portion 174,
Both ends of the first wing extension 171 and the second wing extension 173 are provided with a length shorter than both ends of the body extension 178,
The body extension part 178, the first wing extension part 171, the body extension part 178 and the second wing extension part 173 are fused in multiple rows in the longitudinal direction to form the left and right sides of the strap 140 A first coupling line 176 and a second coupling line 177 are provided,
The first coupling line 176 and the second coupling line 177 are formed by separating or connecting the strap exposed portion 175 to each other. The body portion 110 covering the face, the first wing portion 120 and the second wing portion 130, which are folded or unfolded by being coupled to the upper and lower sides of the body portion 110, and the body portion 110 In the mask manufacturing method having a strap 140 connected to both sides,
A preparation step (S10) of embedding a filter in the body portion 110 and the first wing portion 120 and the second wing portion 130 and embedding a wire in the first wing portion 120,
A first cutting step (S20) of cutting the first wing portion 120 and the second wing portion 130,
The inner surfaces of the body portion 110 and the first wing portion 120, and the body portion 110 and the second wing portion 130 are overlapped with each other, and each end portion is fused in a curved shape, but the ends are first separated from each other. The development line 150 and the second extension line 160 are formed, and the main body portion 110 and the first wing extension portion 171, the body portion 110 and the second wing extension portion 173 are formed in the longitudinal direction. A first bonding step (S30) of fusing to form a first bonding line 176,
A second cutting step (S40) of cutting the outer edges of the main body 110 and the main body extension 178,
The first and second wing extensions 171 and 173 and the body extension 178 are the starting points of the first coupling line 176, which are both ends of the first extension line 150 and the second extension line 160. ) The strap preparation step (S50) of opening between the overlapped inner surfaces,
Strap receiving step (S60) for receiving the strap 140 in the longitudinal direction between the first wing extension 171 and the second wing extension 173 and the inner surface of the body extension 178,
From the left and right sides of the accommodated strap 140, the body portion 110, the first wing extension portion 171, the body portion 110 and the second wing extension portion 173 are fused in the longitudinal direction to form a second coupling line ( 177), and a second bonding step (S70) of fusing the first wing extension 171 and the second wing extension 173 and the body extension 178 based on the second coupling line 177 Strap length adjustment mask manufacturing method comprising a. The method of claim 3,
In the first cutting step (S20) and the second cutting step (S40),
On both sides of the body extension 178 extending from both sides of the main body 110, the first wing extension 171 extending from both sides of the first wing 120, and the second wing 130 To extend but form a second wing extension 173 to be spaced apart from the first wing extension 171,
A method for manufacturing a strap length adjusting mask, characterized in that the first and second wing extensions 171 and 173 have both ends of the body extension 178 being cut to a shorter length than both ends of the body extension 178.

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