KR200434635Y1 - Fabric for the use of breaking static electricity - Google Patents

Abstract

The present invention relates to a fabric for shielding electromagnetic waves, which is a fabric for shielding electromagnetic waves, the fabric being woven as warp and weft yarns, using a poly-based yarn that is not easily melted as a basis for the fabric, and used as a base yarn in a horizontal direction (12 Metal wires are arranged in a vertical direction (13) and one or more of the metal wires may be formed of a plurality of metal wires in a line to form a ground wire (11). The high point yarn is used as the base yarn, and it is safe to use in heating devices such as heat.

Heat transfer mat, copper fiber, copper wire fabric, electromagnetic wave blocking fabric, metal wire

Description

FABRIC FOR THE USE OF BREAKING STATIC ELECTRICITY}

1 is a view showing the form of the electromagnetic wave blocking fabric according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

11: ground wire 12: transverse metal wire

13: longitudinal metal wire 14: ground yarn

The present invention relates to a fabric for shielding electric fields and electromagnetic waves. In a fiber woven with warp and weft yarns, a metal wire, which is a conductor, is mixed with a poly-based yarn at a predetermined ratio, and a ground wire made of more than one strand of metal wire is used to effectively prevent electromagnetic waves. It is to be shielded to be located in the place where electromagnetic waves, such as the electric heating element of the heating mat is aimed to prevent the harmful electromagnetic waves generated by the electric heating element to reach the human body in advance.

Electromagnetic waves are electromagnetic energy with a wide range of frequencies in the flow of electricity and magnetism. When vibrations occur in electricity, electric waves and magnetic forces are generated at the same time, and this is a wave generated by periodic change. Electromagnetic waves can be blocked by a conductor because of this property because it stops easily and comes in contact with other charges. However, when using a metallic conductor to block electromagnetic waves, it is cumbersome to re-install a separate flooring material on top of the metal wave when constructing it on the bottom surface. There is a problem with raising the product.

Existing electromagnetic wave shielding fabric has a separate layer made of conductive material to block electromagnetic waves between layers of fiber, but this method is inconvenient to use because the thickness of the fabric itself becomes thick due to the electromagnetic wave blocking layer made of conductive material. In addition, since the layers of conductive materials were inserted between the fiber layers, the work process was complicated and the cost of materials increased, which contributed to the cost increase. When used in places where friction could occur frequently, the fabric itself was bent and it was difficult to restore to the original state.

In addition, the existing fabric for electromagnetic wave shield is based on low melting point yarns of PVC, PP, PE series, and uses low quality metal wires, so it lacks the feel and comfort of the mat. The shape was distorted or melted and even the risk of fire was present.

Among these fabric papers, Korean Utility Model Publication No. 1991-15295 "Woven papers coated with ceramics and copper wires" is made by alternately arranging fiber yarns and copper yarns, by coating a ceramic layer on the surface, Has the ability to block and ionize electromagnetic waves and generate far-infrared rays by the ceramic coating layer. However, because the copper thread is too dense and the ceramics are coated on the surface, the fabric is not very soft and hard and difficult to handle. It was not easy to process.

In addition, Korean Patent Laid-Open Publication No. 1995-6133 "Woven paper which is provided with an electromagnetic wave shielding function to the fabric paper" is coated with a mixture of conductive carbon, copper particles, manganese, additives and adhesives on the surface of the paper to shield electromagnetic waves. However, there was also a disadvantage of inflexibility and difficult processing of secondary processing. Domestic Utility Model Registration No. 20-217600 "Conductive textile paper with a gold layer formed on the outermost layer" also had similar disadvantages, and the Korean Utility Model Model 20-0247945 No. "Electromagnetic shielding flooring material" uses conductive carbon having conductivity into the ingredients of each layer constituting the flooring material and absorbs electromagnetic waves by using the bottom surface treatment layer as a conductive layer. The thickness of the thickening had the disadvantage of falling flexibility.

In addition, Korean Utility Model Registration No. 20-0279011 "Electromagnetic and water-wave blocking fabric paper" is woven using weft and warp yarns. If the metal thread is too tight, the flexibility is reduced, and if the metal thread is sparse, the electromagnetic wave blocking effect is lowered, and thus the electromagnetic wave blocking, which is the original purpose, is not possible.

In addition, the existing similar products use low melting point yarns of PVC, PP, PE series and low quality metal wires, which lacks the feel and comfort of the mat, and shrinks even at the low temperature of the heating element. Even if it went up, it melted and had a fire hazard.

 In order to solve the problems described above, the present invention provides a fabric which can block electromagnetic waves while having a thin thickness, and at the same time, the manufacturing process is simple and the cost can be reduced. It is an object to provide a fabric that can be used in.

In addition, an object of the present invention is to provide a nonwoven fabric having increased strength and resisting elongation, shrinkage, and the like.

In order to achieve the object as described above, the present invention provides a fabric for electromagnetic wave blocking, wherein the fabric is woven as a warp and weft yarn, and a poly-based yarn that is not easily melted as a base yarn is used as a base yarn 14. In this case, the metal wires are arranged in the horizontal direction 12 and the vertical direction 13, and at least one of the metal wires may be formed of a plurality of metal wires in one line to form the ground wire 11.

In the horizontal direction, the base yarn 14 and the metal wires may be arranged in a ratio of 1: 1 to 4: 1, and 4 to 20 metal wires may be arranged per inch.

 In the longitudinal direction, the base yarn and the metal wire are arranged 1/2 to 3 per inch, any one or more of the longitudinal metal wire may be a ground wire.

The ground wire may be made of 4 to 10 metal wires.

 The metal wire may be any one of metal wires formed by impregnating any one of gold, silver, copper, heat treated copper wire, and gold, silver, copper, and heat treated copper wire.

Melting point of the ground yarn may be more than 100 degrees Celsius.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. Figure 1 is a view showing an embodiment of the electromagnetic wave blocking fabric manufactured separately according to the present invention. The fabric of Fig. 1 is made of poly-based material that is heat-treated as a yarn, and is based on a draw textured yarn that has good softness and withstands high temperatures, and has a constant length of metal wire in the conductor. Woven at intervals and one of the metal wires was formed as a ground wire having the characteristics of the ground. The poly-based yarn used in the present invention has a soft texture as a post-processing yarn, and it is a high-temperature yarn that can withstand more than 180 degrees Celsius, even if it is used for mats. No distortion or shrinkage occurs at all. Metal wire also solves the problem of conventional fabrics because there is no breakage and sagging by using heat-treated interlocking lights. In particular, the woven fabric has the advantage that no other chemicals, such as polyurethane, are added at all, so that no odor or other harmful components are generated. Preferably, the melting point of the yarn becomes 100 degrees or more and 300 degrees or less.

As shown in the drawing, the electromagnetic wave blocking fabric according to the present invention arranges the metal lines in the horizontal and vertical directions on the underlying poly-based yarns, and the weft yarns represent horizontal yarns, and a plurality of vertical yarns are lined up, and the diagonal yarns are vertical yarns. And a plurality are arranged in the horizontal direction. The weft and warp yarns are woven repeatedly by being entangled with each other. It is common to weave in the configuration of 38 * 22 / inch, 40 * 20 / inch, 36 * 24 / inch in the weft direction. In the present invention, the horizontal direction is arranged in a ratio of 1: 1, 2: 1, 3: 1, and 4: 1 with poly-based yarn, respectively, so that 4 to 20 ordinary metal wires are arranged in 1 inch. The smaller the number and the smaller the resistance, the effectiveness of the shielding is reduced and may be 20 or more, but even more than 20, the effect of the shielding is not particularly better, if more than that may cause problems in flexibility.

The longitudinal direction is such that the arrangement of the metal wires is about 1/2 to 3 per inch, but the vertical direction does not need to enter more metal wires because there are enough metal wires in the horizontal direction even if it is not particularly densely formed. It is enough for this to enter.

In addition, one line in the vertical direction or the vertical line on both sides of the fabric inserts 4 to 10 metal wires at a time for use as a ground wire. In this way, the metal wire enters both the horizontal and the vertical direction, and in particular, the ground wire uses more metal wire than in other parts, so the flexibility of the fiber does not have a problem in the part where the ground wire does not enter. Even if it is formed, if the ground wire is thick enough, there is no problem in blocking the electromagnetic waves. For complete electromagnetic shielding, it is important not to simply ground, but to form a thick ground wire.

The metal wire is usually used to heat-treated copper wire, but may be a metal wire made of gold or silver to improve the conductivity, and can be manufactured and used by impregnating the metal wire in the fiber yarn to make the metal wire invisible when viewed from the outside.

The width of the fabric produced as described above is 90 ~ 180cm in the mainstream or the size may vary depending on the occasion.

By such a configuration, it is possible not only to block electromagnetic waves reliably but also to use a base yarn having a high melting point so that it is not easily melted and thus can be used for a heat transfer product.

Since the fabric of the present invention as described above is woven by inserting a metal wire when weaving the yarn, the thickness of the fabric becomes thin and the fabric is flexible because a large number of metal wires are not used. It is shielded from electromagnetic waves and uses a high melting point of the underlying yarn, so it does not melt well even when used in electronic or heat-transfer products, so safety problems do not occur.

Claims (6)

As a fabric for blocking electromagnetic waves, The fabric is woven as warp and weft yarn, using a poly-based yarn that is not easily melted as a base yarn 14 as a base yarn 14, the metal wire is arranged in the horizontal direction 12 and the longitudinal direction (13) One or more of the metal wire is made of a plurality of metal wire in a line to form a ground wire (11), the fabric for electromagnetic shielding. According to claim 1, wherein the base yarn 14 and the metal wire is arranged in a ratio of 1: 1 to 4: 1 to 4 to 20 metal lines per inch, the fabric for electromagnetic shielding. The fabric of claim 1, wherein the base yarn and the metal wire are arranged in a length of 1/2 to 3 per inch, and at least one of the longitudinal metal wires is a ground wire. The fabric of claim 1, wherein the ground wire is made of 4 to 10 metal wires. The fabric of claim 1, wherein the metal wire is any one of metal wires formed by impregnating any one of gold, silver, copper, heat treated copper wire, and gold, silver, copper, and heat treated copper wire. The method of claim 1, wherein the melting point of the base yarn is characterized in that more than 100 degrees Celsius, electromagnetic wave blocking fabric.

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