KR20100088500A - Planar element with electromagnetic waves shielding function - Google Patents

Abstract

PURPOSE: A planar element with an electromagnetic wave shielding function is provided to offer a planar element in order to shield an electromagnetic wave which is emitted from a conductive wire rod. CONSTITUTION: A planar element includes a planar structure part(110) which is weaved through a fiber thread and an electromagnetic wave shielding part(120) which weaved by including an electromagnetic wave shielding yarn along the installation path of a conductive wire rod(10). The electromagnetic wave shielding part is composed of at least one woven tunnel(121) which is weaved with the electromagnetic wave shielding yarn in order to have a receiving part(120a). The electromagnetic wave shielding part is composed of at least one woven band which is formed into a part of the planar element by weaving the yarn.

Description

Planar body with electromagnetic shielding function {PLANAR ELEMENT WITH ELECTROMAGNETIC WAVES SHIELDING FUNCTION}

The present invention relates to a planar body having an electromagnetic shielding function, and more particularly, is emitted from a conductive wire provided for heat generation and / or transmission of various signals to the planar body used as a material for the manufacture of clothing, jewelry, etc. The present invention relates to a planar body having an electromagnetic shielding function capable of shielding electromagnetic waves.

In general, smart clothing is a garment that is configured to apply various signal transmission technology in the garment and to embed various digital devices so that the digital functions essential to modern life can be easily used anytime and anywhere.

Smart clothing has been proposed as a variety of clothing, such as wearable computer (healthwear clothing, remote diagnostic medical clothing, digital military uniform), but currently commercialized smart clothing has a built-in MP3 clothes, heating wire to perform the warming action It is still in the early stages of forming a limited market because of possible heating apparel.

However, the field of smart clothing has no disagreement with the clothing that is essential for the realization of the digital era, and it is rapidly developing and the market size is also increasing.

In addition, in order to implement smart clothing, a conductive wire capable of transmitting current or various signals is provided on a knitted fabric or a woven fabric (hereinafter, referred to as a planar body) that is a material of clothing. In other words, the conductive wire insulated from the planar body is arranged in a predetermined path or knitted or woven into the planar body (hereinafter referred to as "weaving").

In this case, the conductive wire may be composed of a fine metal wire or a fiber yarn including a conductive material. When a current or a signal is transmitted to the conductive wire, electromagnetic waves are naturally generated by the flow of electricity and magnetism.

Such electromagnetic waves have been reported to cause various diseases such as headache, visual acuity, leukemia, brain tumors, causing brain wave disturbances accumulated in the human body, circulatory disorders, reproductive function destruction, and eye diseases.

In particular, since smart clothing is a garment that is continuously worn during the life of the user, when the wearer is exposed to electromagnetic waves for a long time, a serious adverse effect on the body is caused. Accordingly, in order to develop and commercialize smart clothing, it is necessary and urgent to develop a planar body that can shield electromagnetic waves.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and an object thereof is to provide a planar body having an electromagnetic shielding function capable of shielding electromagnetic waves emitted from a conductive wire provided in the planar body.

A planar body having an electromagnetic shielding function for achieving the object of the present invention as described above, in the planar body having a conductive wire material capable of transmitting heat and / or current, and various signals, it is interwoven into a plane by a fiber yarn Losing cotton tissue; And an electromagnetic shielding portion which is woven with electromagnetic shielding yarns along the installation path of the conductive wire rod installed in the planar tissue portion.

The electromagnetic shielding portion may be composed of at least one woven tunnel woven by the electromagnetic shielding yarn so as to have a receiving space for accommodating the conductive wire when the surface tissue portion is woven.

The electromagnetic shielding portion may be composed of at least one woven band formed by forming a portion of the surface tissue portion of the electromagnetic shielding yarn is woven around the conductive wire weave together when the surface tissue portion is woven.

The electromagnetic shielding portion may be composed of at least one woven band woven by the electromagnetic shielding yarn to have an accommodation space for accommodating the conductive wire on the top or bottom surface of the woven surface tissue portion.

The planar tissue part and / or the electromagnetic shielding part may include at least one or more of auxiliary fiber yarns including a shape memory alloy yarn and an optical fiber yarn.

The planar tissue part may include a conductive layer formed by being woven in a planar shape by the conductive yarns; It is composed of any one of the non-fibrous fiber layer is woven in the plane of the upper surface or the bottom of the conductive layer by the non-fiber fiber yarn or the non-conductive resin layer formed on the top or bottom surface of the conductive layer by a resin having no conductivity. It may comprise a non-conductive body layer.

A portion of the conductive yarn forming the conductive layer may be exposed on the surface of the planar tissue portion to form an electrode terminal portion.

The planar tissue portion and the electromagnetic shielding portion may be woven to have a plurality of layers and connected to each other by a connecting fiber.

The planar tissue portion and the electromagnetic shielding portion may be woven to have elasticity.

The planar tissue portion may be configured by being stretched in a stretched polymer yarn inclined and weaved by a weaving yarn, the electromagnetic shielding portion may be composed of a stretched conductive wire and a fiber yarn stretched to have elasticity.

The planar tissue part and the electromagnetic shielding part may include a stretched conductive line.

The stretchable conductive wire may include a conductive yarn wound in a spiral line on an inner line of a stretchable material and an outer circumferential surface of the inner line; And it may include an outer layer overlaid on the outside of the conductive yarn and formed to have elasticity.

The electromagnetic shielding yarn is a linear structure consisting of a metal yarn, a fiber yarn containing a conductive material, an insulating coated metal yarn, and a metal yarn or a fiber yarn plated with any one of gold (Au), silver (Ag), and copper (Cu). It may be composed of any one linear member among the members.

The conductive wire rod accommodated in the electromagnetic shielding portion is composed of at least one strand or more linear members selected from among conductive wires having conductivity but low resistance and capable of conducting current and transmitting electric signals, and heating wires generated by a power source having high resistance. Can be.

The conductive wire and the heating wire, the inner wire of the stretchable material, the conductive yarn wound in a spiral on the outer peripheral surface of the inner wire; And it may include an outer layer overlaid on the outside of the conductive yarn and formed to have elasticity.

The outer layer may be woven by stretchable fiber yarns or molded by stretchable polymer resin.

The conductive wire and the heating wire may include: an elastic yarn formed of an elastic material; A conductive yarn woven on the outer circumferential surface of the stretchable yarn and having an insulating coating layer formed on the outer surface thereof; And an insulated yarn which is woven on the outer circumferential surfaces of the stretchable yarns so as to be positioned between the conductive yarns and performs an insulation function so that the conductive yarns do not come into contact with each other.

According to the planar body having an electromagnetic shielding function according to the present invention as described above, electromagnetic waves emitted from a conductive wire made of a heating wire or a conductive wire can be shielded and removed by the electromagnetic shielding portion, thereby eliminating adverse effects on the human body. It works. As a result, it is possible to speed up the commercialization of future textile materials that can produce smart clothing and the like, and can expect a breakthrough in the field of clothing.

Best Mode for Carrying Out the Invention Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, Figs. 1 to 10, and like reference numerals designate like elements in Figs. Meanwhile, the drawings and detailed descriptions of configurations, operations, and effects that can be easily understood by those skilled in the art from general technology in each drawing are briefly or omitted, and are illustrated based on parts related to the present invention.

1A is a view schematically showing a planar body having an electromagnetic shielding function according to a first embodiment of the present invention.

As shown in FIG. 1A, the planar body 100 having the electromagnetic shielding function according to the first embodiment of the present invention constitutes a planar body having a conductive wire 10 capable of generating heat or electric current and various signals. It is configured to shield the electromagnetic waves emitted from the conductive wire 10.

In addition, the planar body 100 having an electromagnetic shielding function is woven into the plane by the fiber yarns 111, and the planar tissue part 110 in which the conductive wire 10 is installed and arranged, and the conductivity provided in the planar tissue part 110. The electromagnetic wave shield 120 is woven by the electromagnetic shielding yarn 120b along the installation path of the wire rod 10.

The electromagnetic shield 120 is a woven tunnel 121 that is woven including the electromagnetic shielding yarn 120b to have a receiving space 120a for accommodating the conductive wire 10 at the time of weaving the planar tissue part 110. It is composed.

FIG. 1B is a view showing a first modified example of the planar body 100 having the electromagnetic shielding function according to the first embodiment of the present invention. Referring to this, the woven tunnel 121 has an arrangement of conductive wires 10. Depending on the form or quantity, it may be configured as a single structure at least as shown in Figure 1a, or may be configured in plurality as shown in Figure 1b.

In addition, the electromagnetic shielding yarn 120b forming the electromagnetic shielding part 120 may be selected and woven without limitation as long as it is a linear member capable of shielding the emitted electromagnetic waves, but in the present embodiment, it is known that the electromagnetic shielding effect is excellent. It consists of a linear member which has electroconductivity. That is, the electromagnetic shielding yarn 120b is a metal yarn, a fiber yarn containing a conductive material, an insulating coated metal yarn, and a metal yarn plated with any one of gold (Au), silver (Ag), and copper (Cu) or Select any one of the linear members made of fiber yarn is configured.

2A to 2D are diagrams showing examples of the structure of the planar tissue part and the electromagnetic shielding part applied to the planar body having the electromagnetic shielding function according to the present invention. As shown therein, the planar tissue part 110 and the electromagnetic shielding part are shown. 120 may be configured to have various forms of organizational structure.

For example, the planar tissue part 110 and the electromagnetic shielding unit 120 may be composed of a braided fabric formed by interweaving three or more fibers to cross each other. That is, the planar tissue part 110 is configured in the form of a flat braided fabric as shown in FIG. 2A, and the electromagnetic shielding part 120 is a tubular braided to form a woven tunnel as shown in FIG. 2B. It consists of a fabric, but is connected to each other during the weaving process.

As shown in FIG. 2C, the planar tissue part 110 and the electromagnetic shielding part 120 may be configured in the form of a woven fabric formed by a woven method, or as shown in FIG. 2D. The electromagnetic shielding unit 120 may be configured in the form of a knit fabric formed by a knit method.

On the other hand, the planar body 100 having an electromagnetic shielding function is made of clothing or jewelry to ensure the activity in the state worn on the body, the planar tissue portion 110 and the electromagnetic shielding portion 120 is configured to have elasticity It is preferable.

To this end, the planar tissue portion 110 is composed of elastic polymer yarns such as span yarns arranged inclined and weaved with a weft yarn as shown in Figure 2c. The electromagnetic shielding portion is composed of a stretched conductive wire configured to have stretchability and a fiber yarn to have stretchability.

In addition, the planar tissue part 110 and / or the electromagnetic shielding unit 120 may be configured to be woven or arranged auxiliary fiber yarn having a special function. For example, the auxiliary fiber yarn may include a shape memory alloy yarn that is transformed at a predetermined transformation temperature, and may be configured to be transformed at a set transformation temperature to maintain a constant shape. In addition, an optical fiber yarn for transmitting light irradiated as the auxiliary fiber yarn may be used to change the planar body into a specific color as necessary.

FIG. 3 is a view showing a second modified example of the planar body having the electromagnetic shielding function according to the first embodiment of the present invention. As shown therein, the planar tissue unit 110 and the electromagnetic shielding unit 120 are It may include a flexible conductive line 140 capable of transmitting current and various signals. In this case, the stretchable conductive line 140 may be formed of a conductive wire 10 having a shape similar to that shown in FIGS. 4 and 5 to be described later.

Figure 4 is a view showing a conductive wire applied to the planar body having an electromagnetic shielding function according to the present invention.

The planar body 100 having an electromagnetic shielding function is configured by selecting the conductive wire 10 accommodated in the electromagnetic shielding unit 120 according to the purpose of use or use thereof. For example, when the planar body is to be formed of a conductive pad, the conductive wire 10 has a conductivity but is low in resistance and constitutes a conductive line capable of conducting current and transmitting an electric signal, and planarizing the planar body as a heat generating pad. In this case, it is composed of a heating wire that generates heat by the applied power having a high resistance value. When all functions of the conductive pad and the heating pad are required, the conductive wire and the heating wire are provided.

In addition, the conductive line and the heating line, as shown in Figure 4 to secure the activity (stretch structure) of the planar tissue portion 110 and the electromagnetic shielding portion 120, the extension 11, the extension 11 The outer circumferential surface of the conductive yarns 12 may be wound spirally, and the outer shell layer 13 is formed to cover the outside of the conductive yarns 12 and have elasticity. The outer layer may be woven by elastic fiber yarns or molded by elastic polymer resin.

5 is a view showing a conductive wire applied to a planar body having an electromagnetic shielding function according to the present invention. As shown therein, the conductive wire and the heating wire are stretched yarns 14 and stretched yarns 14 formed of a stretchable material. Woven on the outer circumferential surface of the stretched yarns 14 so as to be interposed between the conductive yarn 15 and the conductive yarn 15 having an insulating coating layer formed on the outer surface thereof, and the conductive yarn 15 is not in contact with each other. It may include an insulating yarn 16 to perform.

In this case, the wire rod that can be applied as the conductive yarn 15 may be composed of any one of an insulating coated metal wire, carbon fiber yarn, fiber yarn containing a conductive polymer material, and a polymer resin wire containing a conductive polymer material. In the example, as shown in FIG. 5, a plurality of strands of insulation-coated copper wires are joined together to form a wire formed by one strand.

The insulated yarn 16 is composed of natural fiber yarn or synthetic fiber yarn. In this case, the fiber yarn refers to a conventional yarn structure in which a plurality of fine prehistoric tissues are united together.

6 is a view schematically showing a planar body having an electromagnetic shielding function according to a second embodiment of the present invention.

As shown in FIG. 6, the planar body 100 ′ having an electromagnetic shielding function according to the second embodiment of the present invention is woven into a plane by a fiber yarn, and the planar tissue part 110 in which the conductive wire 10 is installed and arranged. ) And an electromagnetic shielding portion 120 which is woven by the electromagnetic shielding yarn 120b along the installation path of the conductive wire 10 installed in the planar tissue portion 110, but the electromagnetic shielding portion 120 is woven. It is composed of at least one woven band 122 is woven by an electromagnetic shielding yarn to have a receiving space portion 120a for receiving the conductive wire 10 on the top or bottom surface of the surface tissue portion 110.

The weaving band 122 may be woven at the same time so as to be located on the top or bottom surface of the planar tissue part 110, or by padding after weaving the planar tissue part 110.

In addition, the planar body 100 ′ having the electromagnetic shielding function according to the second embodiment is characterized in that the electromagnetic shielding portion 120 is configured in the form of a woven band, and the remaining part is the same as the first embodiment described above. Because of the similarity, detailed description of the detailed configuration constituting the surface tissue unit 110 and the electromagnetic shielding unit 120 will be omitted.

7 is a view schematically showing a planar body having an electromagnetic shielding function according to a third embodiment of the present invention.

As shown in FIG. 7, the planar body 100 ″ having an electromagnetic shielding function according to the third embodiment of the present invention is woven into a plane by fiber yarns, and the planar tissue part 110 in which the conductive wire 10 is installed and arranged. ) And an electromagnetic shielding unit 120 which is woven by the electromagnetic shielding yarn 120b along the installation path of the conductive wire 10 installed in the planar tissue unit 110, wherein the electromagnetic shielding unit 120 is a planar tissue unit. It consists of at least one weave strip 123 weaved together at the time of weaving (110).

That is, the woven band 123 is supplied by weaving the conductive wire 10 consisting of a heating wire and / or conductive wire with the warp and weft forming the planar tissue portion 110, the electromagnetic shielding is woven around the conductive wire It is configured to form part of the lower surface tissue portion 110.

In addition, the planar body 10 "having the electromagnetic shielding function according to the third embodiment is characterized in that the electromagnetic shielding portion 120 is configured in the form of a woven strip, and the remaining part is the same as the first embodiment described above. Since it is similar, the detailed description of the detailed configuration constituting the surface tissue portion and the electromagnetic shielding portion is omitted.

8 is a view showing a planar body having an electromagnetic shielding function according to the fourth embodiment of the present invention, as shown in the planar body 200 having an electromagnetic shielding function, the planar tissue portion 210 and the electromagnetic shielding It is composed of a portion 220, the planar tissue portion 210 is composed of a conductive layer 211 and a non-conductive body layer 212. In addition, the electromagnetic shield 220 may be configured by selecting any one of the electromagnetic shields shown in the first to third embodiments.

The conductive layer 211 is formed by being woven into a plane shape by conductive yarns, and can be woven using only conductive yarns, or a mixture of conductive yarns and fiber yarns can be woven and formed.

The non-conductive body layer 212 is formed on the top or bottom surface of the conductive layer 211 by plane nonwoven with a non-fiber fiber yarn, for example, as shown in Figure 8, wherein the non-fiber fiber yarn is not conductive Refers to natural fiber yarn or synthetic fiber yarn.

In addition, the nonconductive main body layer 212 can be constituted by a nonconductive resin layer molded by a resin having no conductivity.

In addition, although not attached to a separate drawing, the non-conductive fiber layer may be configured up and down with the conductive layer 211 interposed therebetween.

9 is a view showing a modification of the planar body having an electromagnetic shielding function according to the fourth embodiment of the present invention, and as shown therein, the planar body 300 having the electromagnetic shielding function according to the fourth embodiment. The planar tissue part 310, and includes an electromagnetic shielding part 320 which is woven by an electromagnetic shielding yarn along the installation path of the conductive wire 10 installed in the planar tissue part 310, the surface of the planar tissue part 310 A portion of the conductive yarn is exposed to the electrode terminal portion 330.

That is, the planar tissue portion 310 is configured by weaving so that a part of the conductive yarn is exposed to the surface of the non-conductive fiber layer woven by the non-conductive fiber yarn as shown in the enlarged portion of FIG.

In addition, the electrode terminal unit 330 may be configured to have a dot structure repeatedly formed to have a predetermined interval as shown in Figure 9, or may be configured to be exposed in a linear structure.

In addition, the electrode terminal unit 330 can be configured to apply in the first to third embodiments described above.

10 is a view showing a planar body having an electromagnetic shielding function according to a fifth embodiment of the present invention, and as shown therein, the planar body 400 having an electromagnetic shielding function according to the fifth embodiment is planar. The pad member 400a having the tissue portion 410 and the electromagnetic shielding portion 420 is configured to have a plurality of layers.

The planar body 400 having the electromagnetic wave shielding function is configured to form a layer in the vertical direction of the pad member 400a having the planar tissue part 410 and the electromagnetic shielding part 420 by an attachment method or a coupling method, or a planar tissue part. 410 and the electromagnetic shielding portion 420 may be configured in such a manner that at the same time connected to each other by a connecting fiber yarn.

In addition, the planar body 400 having the electromagnetic shielding function in which the pad member 400a is formed in a multi-layered material is relatively thick in the material of the article on which the plurality of conductive wires are installed, and thus the material or the cushion of the winter clothing and the jewelry is required. It may be used as the material of the article to be.

As described above, the planar body having the electromagnetic shielding function according to a preferred embodiment of the present invention is shown according to the above description and drawings, but this is merely an example and is within the scope not departing from the technical spirit of the present invention. It will be understood by those skilled in the art that various changes and modifications are possible in the art.

1A is a view schematically showing a planar body having an electromagnetic shielding function according to a first embodiment of the present invention;

1B is a view showing a first modification of the planar body 100 having the electromagnetic shielding function according to the first embodiment of the present invention;

2A to 2D are diagrams showing examples of tissue structures of the planar tissue part and the electromagnetic shielding part applied to the planar body having the electromagnetic shielding function according to the present invention;

3 is a view showing a second modified example of the planar body having an electromagnetic shielding function according to the first embodiment of the present invention;

4 is a view showing a conductive wire applied to a planar body having an electromagnetic shielding function according to the present invention;

5 is a view showing a conductive wire applied to a planar body having an electromagnetic shielding function according to the present invention;

6 is a view schematically showing a planar body having an electromagnetic shielding function according to a second embodiment of the present invention;

7 is a view schematically showing a planar body having an electromagnetic shielding function according to a third embodiment of the present invention;

8 is a view showing a planar body having an electromagnetic shielding function according to a fourth embodiment of the present invention;

9 is a view showing a modification of the planar body having the electromagnetic shielding function according to the fourth embodiment of the present invention;

10 is a view showing a planar body having an electromagnetic shielding function according to a fifth embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

10: conductive wire rod

100,100 ', 100 ", 200,300,400: planar body with electromagnetic shielding function

110,210,310,410: planar tissue

120,220,320,420: Electromagnetic shielding part

120a: receiving space 120b: electromagnetic shielding yarn

121: woven tunnel 122: woven band

123: weave belt

Claims (17)

In the planar body provided with the electrically conductive wire which can generate heat | fever and / or an electric current and various signals, Cotton tissue portion woven in a plane by the fiber yarn; And an electromagnetic shielding portion which is woven with an electromagnetic shielding yarn along an installation path of the conductive wire rod installed in the planar tissue portion. The method of claim 1, The electromagnetic shielding portion, And at least one woven tunnel woven by the electromagnetic shielding yarn so as to have an accommodation space for accommodating the conductive wire when the planar tissue portion is woven. The method of claim 1, The electromagnetic shielding portion, The planar body having an electromagnetic shielding function, characterized in that the electromagnetic shielding yarn is woven around the conductive wire which is woven together when the planar tissue portion is woven together and formed of at least one woven band formed as part of the planar tissue portion. The method of claim 1, The electromagnetic shielding portion, And at least one woven band woven by the electromagnetic shielding yarn to have an accommodation space for accommodating the conductive wire on the top or bottom surface of the woven planar tissue part. The method of claim 1, And said planar tissue portion and / or said electromagnetic shielding portion comprises at least one or more of an auxiliary fiber yarn made of a shape memory alloy yarn and an optical fiber yarn. The method of claim 1, The planar tissue portion, A conductive layer formed by being woven into the plane by the conductive yarns; It is composed of any one of the non-fibrous fiber layer is woven in the plane of the upper surface or the bottom of the conductive layer by the non-fiber fiber yarn or the non-conductive resin layer formed on the top or bottom surface of the conductive layer by a resin having no conductivity. An planar body having an electromagnetic shielding function, comprising an unconductive body layer. The method according to any one of claims 1 to 6, A planar body having an electromagnetic shielding function, characterized in that an electrode terminal portion is formed by exposing a portion of the conductive yarn forming the conductive layer to the surface of the planar tissue portion. The method according to any one of claims 1 to 6, Wherein the planar tissue portion and the electromagnetic shielding portion is woven to have a plurality of layers and the planar body having an electromagnetic shielding function, characterized in that configured to be connected to each other by a connecting fiber yarn. The method of claim 1, The planar body having an electromagnetic shielding function, characterized in that the planar tissue portion and the electromagnetic shielding is interwoven to have elasticity. 10. The method of claim 9, The planar tissue portion is composed of elastic polymer yarns arranged in a slant and weaved with fiber yarns, The electromagnetic wave shielding portion has an electromagnetic shielding function, characterized in that the elastic conductive wire is configured to have elasticity, and the fiber yarn is woven to have elasticity. 10. The method of claim 9, The planar body having an electromagnetic shielding function, characterized in that the planar tissue portion and the electromagnetic shielding portion includes a stretched conductive wire. The method according to claim 10 or 11, wherein The stretchable conductive line, Elastic extension, A conductive yarn wound spirally on the outer circumferential surface of the extension; And The planar body having an electromagnetic shielding function, characterized in that it comprises an outer layer overlaid on the outside of the conductive yarn and formed to have elasticity. The method according to any one of claims 1 to 6, The electromagnetic shielding yarn is a linear structure consisting of a metal yarn, a fiber yarn containing a conductive material, an insulating coated metal yarn, and a metal yarn or a fiber yarn plated with any one of gold (Au), silver (Ag), and copper (Cu). A planar body having an electromagnetic shielding function, characterized in that composed of any one of the linear members. The method according to any one of claims 1 to 6, The conductive wire material accommodated in the electromagnetic shielding part is at least one strand or more linear members selected from among conductive wires having conductivity but low resistance and capable of conducting current and transmitting electric signals, and heating wires generated by a power source having high resistance. A planar body having an electromagnetic shielding function, characterized in that. The method of claim 14, The conductive line and the heating line, Elastic extension, A conductive yarn wound spirally on the outer circumferential surface of the extension; And The planar body having an electromagnetic shielding function, characterized in that it comprises an outer layer overlaid on the outside of the conductive yarn and formed to have elasticity. The method of claim 15, The envelope layer is a planar body having an electromagnetic shielding function, characterized in that it is woven by elastic fiber yarns or molded by a stretchable polymer resin. The method of claim 14, The conductive line and the heating line, Stretch yarns formed by stretch material; A conductive yarn woven on the outer circumferential surface of the stretchable yarn and having an insulating coating layer formed on the outer surface thereof; And And an insulating yarn woven on the outer circumferential surface of the stretchable yarns so as to be located between the conductive yarns and performing insulating functions so that the conductive yarns do not contact each other.

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