TW201934829A - Elastic fabric and manufacturing method thereof - Google Patents

Abstract

A elastic fabric comprises an elastic webbing having at least one layer and at least one conductive wire. The at least one conductive wire is disposed within the elastic webbing and extended along the first direction in a wavy manner. Wherein when the at least one conductive wire is signaling yarn, it comprises a support material having a strength of 26 through 40 strands.

Description

Elastic fabric and manufacturing method thereof

The invention relates to an elastic fabric, in particular to an elastic fabric configured with a conductive wire and a method for manufacturing the same.

In recent years, related industries of wearable technology products, such as sports watches and smart clothes, have flourished. One of the most important conditions when users choose wearable technology is comfort when wearing. In the related field of fabrics, how to combine conductive wires with general fabrics and maintain better comfort when worn is an important research and development direction. Elastic fabrics have the characteristics of being stretchable, so in order to meet the user's experience requirements, when the conductive wire is combined with the elastic fabric, in order to improve the comfort, it will face more restrictions. For example, the conductive wire must have a characteristic. Therefore, it is one of the important issues to make the conductive wire to expand and contract with the elastic fabric while improving its strength.

In order to solve the foregoing problems, the present invention proposes an elastic fabric and a method for manufacturing the elastic fabric. The conductive wire in the elastic fabric can expand and contract with the elastic fabric and has a tensile strength with better strength.

In an embodiment of the present invention, an elastic fabric is provided, and the elastic fabric includes at least one layer of elastic webbing and at least one letter yarn. The at least one fuselage yarn includes struts with a strength of 26 to 40, and the at least one fuselage yarn is arranged on at least one layer of elastic webbing and extends in a wave shape in the first direction.

In one embodiment of the present invention, a method for manufacturing an elastic fabric is provided, and the steps of the manufacturing method are described as follows. First, prepare at least one layer of elastic webbing. Next, at least one fuselage yarn is arranged on at least one layer of elastic webbing, and the at least one fuselage yarn extends in a first direction in a wave shape, wherein at least one of the fuselage yarns includes a brace having a strength of 26 to 40.

In an embodiment of the present invention, the lead yarn includes short woven fibers and a sheet conductor. Staple fiber is used as the support material of the guide yarn. The sheet conductor surrounds the peripheral surface of the short woven fiber in a spiral traveling manner, and the aspect ratio of the lateral cross section of the sheet conductor corresponding to the spiral traveling manner is between about 10 and 30.

For those of ordinary skill in the art, these and other objects of the present invention will no doubt become apparent after reading the following detailed drawings and detailed description of the preferred embodiments shown in the accompanying drawings.

Certain terms are used throughout the description and claims to refer to particular components. As those skilled in the art will recognize, manufacturers may refer to a component by different names. This manual does not specifically identify components with different names but the same functions. In the following description and claims, the terms "including" and "comprising" are used in an open-ended fashion and therefore should not be interpreted as closed terms such as "consisting of".

Please refer to FIG. 1, which is a schematic diagram of an elastic fabric 100 according to an embodiment of the present invention. The elastic fabric 100 includes at least one layer of elastic webbing 110 and at least one conductive wire 120. The elastic webbing 110 is made of spandex / elastane fiber, and the elastic webbing 110 is not limited to one layer. For example, the elastic webbing 110 may be two or more layers. The conductive wire 120 is laid and fixed on the elastic webbing 110, and at the same time, the conductive wire 120 is laid on the elastic webbing 110 in a wavy or sinusoidal shape, thereby providing an extension space during stretching without being easily broken.

In the embodiment of the present invention, the conductive wire 120 is, for example, one of a lead yarn and an enameled wire, and the present invention is not limited thereto.

In this embodiment, the enameled wire includes insulating paint, and the material of the insulating paint is one of polytetrafluoroethylene, polyethylene terephthalate, fluoroplastic film, polyvinyl chloride, polyethylene, and other high-molecular insulating materials. , And the present invention is not limited thereto.

Please refer to FIG. 2A and FIG. 2B. FIG. 2A and FIG. 2B are schematic diagrams of an example of stretching the elastic fabric 100 according to the present invention. Please refer to FIG. 2A first, when the elastic fabric 100 is not pulled by an external force, the conductive wire 120 is presented on the elastic webbing 110 in a wave shape or a sinusoidal shape. Please refer to FIG. 2B. When the elastic fabric 100 is pulled by an external force, the conductive wire 120 will be stretched in the first direction X along with the elastic webbing 110 due to the external force. The distance between the multiple wave peaks formed will increase according to the magnitude of the external force, so the conductive wire 120 can be stretched or contracted with the elastic webbing 110 without breaking due to the external force.

FIG. 3 is another embodiment of the elastic fabric 100 of the present invention. In this embodiment, the elastic fabric 100 can be configured with two conductive wires 120 in the elastic webbing 110, wherein the conductive wire 120a may be an enameled wire, and the conductive wire 120b may be a lead wire. yarn. That is to say, the elastic fabric 100 may include multiple conductive wires 120 according to requirements, and may be laid on the same elastic webbing 110 with different types of conductive wires 120 at the same time, and not according to the present invention as shown in FIGS. 1, 2A, 2B, or 3 The number of the illustrated conductive wires 120 is limited.

Please refer to FIG. 4. FIG. 4 is a schematic perspective view of the conductive wire 120 as a guide yarn according to an embodiment of the present invention. The conductive wire 120 includes a short woven fiber 121 and a sheet conductor 122. The staple fiber 121 is used as a supporting material to support the sheet-like conductor 122 surrounding it. The sheet-like conductor 122 surrounds the peripheral surface of the staple fiber 121 in a spiral manner. The manner in which the sheet-like conductor 122 spirals around the peripheral surface of the short woven fiber 121 can increase the tensile strength of the conductive wire 120.

Optionally, the tensile strength of the conductive wire 120 can be further increased through the selection of the strength of the short woven fiber 121 and / or the selection of the length-to-width ratio of the lateral cross section of the sheet conductor 122 corresponding to the spiral travel mode. . In this embodiment, the strength of the short woven fiber 121 is selected to be 30, and the length-to-width ratio of the lateral cross section of the sheet conductor 122 corresponding to the spiral travel mode is selected to be approximately 20, but the present invention is not limited thereto. For example, the strength of the short woven fiber 121 can be selected to be 26, 28, or 40, or the length-to-width ratio of the lateral cross section of the sheet conductor 122 corresponding to the spiral travel mode can be selected to be between about 10 and 30.

In this embodiment, the material of the short woven fiber 121 is polyester, polyamide, polyacrylonitrile, polyethylene, polypropylene, cellulose, protein, elastic fiber, and polyvinyl fluoride. One of the above-mentioned types, polyparaphenylene benzoxazoles, polyether ketones, carbons and glass fibers, and the present invention is not limited thereto. The material of the short woven fiber 121 can be selected according to actual needs.

In this embodiment, the material of the chip conductor 122 may be an alloy, for example, selected from a copper-nickel alloy, a copper-tin alloy, a copper-nickel-silicon alloy, a copper-nickel-zinc alloy, a copper-nickel-tin alloy, a copper-chromium alloy, a copper-silver alloy, One of nickel-brass alloy, phosphor bronze alloy, beryllium copper alloy, nickel chromium alloy, copper tungsten alloy, stainless steel, and other commercially available conductive alloys, but the invention is not limited to the type of alloy. In different applications, there may be different choices of alloy types. For example, the conductive wire 120 can be used as a touch sensing element in a touch fabric. One end receives a scanning signal and the other end receives a touch sensing signal. Therefore, the chip conductor 122 can select an alloy with a lower resistance value as the alloy. Its material.

Next, please refer to FIG. 5, which is a schematic perspective view of a conductive wire according to another embodiment of the present invention. Compared to the embodiment of FIG. 4, the conductive wire 120 ′ provided in the embodiment of FIG. 5 further includes an insulating layer 123, wherein the insulating layer 123 surrounds the peripheral surface of the short woven fabric 121 to cover the sheet conductor 122 and the short woven fabric. Fiber 121. The description of the sheet conductor 122 and the short woven fiber 121 of the conductive wire 120 'is the same as the description of the sheet conductor 122 and the short woven fiber 121 of the conductive wire 120 of FIG.

In this embodiment, the material of the insulating layer 123 is one of polytetrafluoroethylene, polyethylene terephthalate, fluoroplastic film, polyvinyl chloride, polyethylene, and other polymer insulating materials, and the present invention Not as a limitation. The material of the chip conductor 122 and the insulating layer 123 can be selected differently according to the actual application. For example, the conductive wire 120 'can be used as a heating element in a heating fabric, so the sheet conductor 122 can choose an alloy with a higher resistance value as its material, and the insulating layer 123 can choose an insulating material with higher heat resistance (for example, Teflon).

Please refer to FIG. 5 and FIG. 6 at the same time. FIG. 6 is a schematic cross-sectional view of a conductive wire according to another embodiment of the present invention. In the cross-sectional view of the conductive wire 120 ', according to the foregoing description, the short woven fiber 121 is a support material as a center layer, and the other two layers except the short woven fiber are a sheet conductor 122 and an insulating layer 123 in this order. However, although the conductive wire 120 'in this embodiment has only one layer of the sheet conductor 122 and one layer of the insulating layer 123, the present invention is not limited thereto. In other embodiments, there may be more layers of the chip conductor 122 and the insulating layer 123, for example, 6 layers or 8 layers, and the number of layers may vary according to different applications.

Next, please refer to FIG. 7, which is a schematic diagram of an implementation manner of the chip conductor 122 according to an embodiment of the present invention. In this embodiment, the length and width of the transverse section of the sheet-like conductor 122 are approximately 4P and P / 5, respectively, where P may be the diameter of the circular section of the conductor wire 122 '. The conductor wire 122 'passes through a rolling mill roll to form a sheet-like conductor 122. However, the manner in which the sheet-like conductor 122 is formed is not intended to be a limitation of the present invention. In other words, there are different implementations to make the sheet conductor 122 of the embodiment of the present invention.

Please refer to FIG. 8, which is a manufacturing method of the assembled elastic fabric 100 according to the above. First, in S201, at least one layer of elastic webbing 110 is prepared. Next, in step S202, the conductive wire 120 is disposed on the elastic webbing 110, and the conductive wire 120 extends in a wave shape along the first direction X. In other embodiments, the elastic fabric 100 may include a plurality of conductive wires 120, so step S202 may be to arrange the plurality of conductive wires 120 on the elastic webbing 110, wherein the plurality of conductive wires 120 are arranged along the second direction Y, and each The conductive wire 120 extends in a wave shape along the first direction X.

In summary, since the conductive wire 120 of the present invention is laid on the elastic fabric 100 in a wavy configuration, when the elastic fabric 100 is stretched, the conductive wire 120 can be stretched without breaking as the elastic webbing 110 is stretched. . In addition, in the embodiment in which the conductive wire 120 of the present invention is a leader yarn, in addition to the short woven fiber 121 having a strength of 26 to 40 as the support material, the sheet conductor 122 further spirals around the short woven The peripheral surface of the fiber 121 increases the tensile strength of the conductive wire 120, so that the conductive wire 120 of the present invention has better tensile elasticity and tensile strength.

The present invention has been disclosed in the foregoing with a preferred embodiment, but those skilled in the art should understand that this embodiment is only for describing the present invention, and should not be interpreted as limiting the scope of the present invention. It should be noted that all changes and substitutions equivalent to this embodiment should be included in the scope of the present invention. Therefore, the scope of protection of the present invention shall be defined by the scope of the patent application.

100‧‧‧ elastic fabric

110‧‧‧elastic webbing

120, 120 ’, 120a, 120b ‧‧‧ conductive wire

121‧‧‧ staple fiber

122‧‧‧ Chip Conductor

122’‧‧‧ Conductor wire

123‧‧‧Insulation

FIG. 1 is a schematic diagram of weaving an elastic fabric according to an embodiment of the present invention. FIG. 2A is a schematic diagram of an unstretched elastic fabric according to an embodiment of the present invention. FIG. 2B is a schematic diagram of an elastic fabric after stretching according to an embodiment of the present invention. FIG. 3 is a schematic diagram of an elastic fabric according to another embodiment of the present invention. FIG. 4 is a schematic perspective view of a conductive wire according to an embodiment of the present invention. FIG. 5 is a schematic perspective view of a conductive wire according to another embodiment of the present invention. FIG. 6 is a schematic cross-sectional view of a conductive wire according to another embodiment of the present invention. FIG. 7 is a schematic diagram of an implementation manner of a sheet conductor according to an embodiment of the present invention. FIG. 8 is a schematic flowchart of steps in a method for manufacturing an elastic fabric according to an embodiment of the present invention.

Claims (10)

An elastic fabric, comprising: at least one layer of elastic webbing; and at least one fuselage yarn including a brace having a strength of 26 to 40, the at least one fuselage yarn is disposed on the at least one layer of elastic webbing, the at least one The fusible yarn extends in a wave shape in a first direction. The elastic fabric according to claim 1, wherein the elastic fabric comprises a plurality of the fuser yarns, and the fuser yarns are arranged on the at least one elastic webbing and arranged along a second direction. The elastic fabric according to claim 1, wherein the at least one lead yarn includes: a short woven fiber as the support material; and a sheet-shaped conductor surrounding a short woven fiber in a spiral manner. Peripheral surface, wherein a length-to-width ratio of a lateral section of the sheet conductor corresponding to the spiral travel mode is between about 10 and 30. The elastic fabric according to claim 3, wherein a material of the sheet conductor is an alloy selected from a copper-nickel alloy, a copper-tin alloy, a copper-nickel-silicon alloy, a copper-nickel-zinc alloy, and a copper alloy. One of nickel-tin alloy, a copper-chromium alloy, a copper-silver alloy, a nickel-brass alloy, a phosphor bronze alloy, a beryllium copper alloy, a nickel-chromium alloy, a copper tungsten alloy, and a stainless steel. The elastic fabric according to claim 3, further comprising: an insulating layer surrounding the peripheral surface of the short-woven fiber to cover the sheet conductor and the short-woven fiber. The elastic fabric according to claim 5, wherein a material of the insulating layer is selected from a polytetrafluoroethylene, a polyethylene terephthalate, a fluoroplastic film, a polyvinyl chloride, and a polyethylene One of them. A method for manufacturing an elastic fabric includes the steps of: preparing at least one layer of elastic webbing; and arranging at least one fuselage yarn on the at least one layer of elastic webbing and extending in a wave shape along a first direction, and the at least one fuselage Includes a brace with a strength between 26 and 40. The manufacturing method according to claim 7, wherein the steps include: arranging a plurality of the guide yarns on the at least one layer of elastic webbing, the guide yarns are arranged in a second direction and extend in a wave shape in the first direction. . The manufacturing method according to claim 7, wherein the at least one lead yarn includes: a short woven fiber as the support material; and a sheet-shaped conductor surrounding a short woven fiber in a spiral manner. Peripheral surface, wherein a length-to-width ratio of a lateral section of the sheet conductor corresponding to the spiral travel mode is between about 10 and 30. The manufacturing method according to claim 9, further comprising: an insulating layer surrounding the peripheral surface of the short woven fiber to cover the sheet conductor and the short woven fiber.