Signal transmission elastic webbing and method of weaving the same

Abstract

The application belongs to the technical field of intelligent clothes, and relates to a signal transmission elastic fabric belt and a weaving method thereof. The weaving method comprises the following steps: preparing covered elastic yarn and opposite double-covered elastic conductive yarn, setting the width and length of the fabric belt, and accurately calculating the on-machine length and use length of the yarn; calculating the number and position of the conductive yarn according to resistance setting, setting the weave structure of the fabric belt, and ensuring the reasonable layout of the yarn in the fabric belt; in the weaving process, the initial tension of the warp yarn on the machine is measured, the on-machine elastic elongation ratio and the warp delivery ratio of the yarn are calculated, so as to ensure the elasticity and recovery of the fabric belt; the on-machine elastic recovery rate and the on-machine weft density of the yarn are accurately adjusted according to the set elastic elongation rate; finally, the off-machine elastic elongation rate is set and the appropriate weft yarn is selected, and then the weaving is started to obtain the high-performance signal transmission elastic fabric belt. The application realizes the combination of high elasticity, self-shielding and multi-channel signal transmission expansion function.

Description

Technical Field

[0001] This invention belongs to the field of smart clothing technology and relates to a signal transmission elastic webbing and its weaving method. Background Technology

[0002] In recent years, with the rapid development of flexible smart wearable devices, electronic information smart clothing has become an important development direction in the wearable device field. In smart clothing, the design of the internal circuitry is crucial for achieving signal transmission and intelligent functions. However, traditional stranded metal wires, due to their high rigidity, would present significant limitations and discomfort if directly applied to clothing.

[0003] In the existing textile field, conductive webbing fabrics have been widely studied as a potential solution for signal transmission. Although various attempts have been made, such as using conductive webbing containing Litz wires (e.g., in the literature (3D woven preforms for E-textiles and composites reinforcements[M]. Advances in 3D Textiles.2015:207-263.)) or combining elastic bands with round cables as weft yarns, these solutions often suffer from insufficient elasticity. Furthermore, existing elastic conductive webbing designs often achieve a certain degree of elastic elongation by directly threading wires into the elastic webbing or by setting S-shaped wires, but these methods often cannot simultaneously meet the requirements of high elasticity, self-shielding, and multi-channel signal transmission expansion capabilities.

[0004] For example, patent application CN212152627U discloses an elastic conductive webbing. This elastic conductive webbing is directly woven with elastic yarn as the core and conductive yarn and ordinary yarn as the outer layer. It belongs to the category of woven coaxial ropes and has an elongation rate of 0-2 times, achieving a low elastic elongation effect. However, due to the limitations of its weaving structure, it is difficult to achieve multi-line, high-power transmission while maintaining high flexibility and small diameter. Patent application CN211227526U discloses a novel elastic conductive webbing. This patent adopts a design that places copper stranded wires inside tubes on both sides of the webbing, improving the concealment of the wires and their wear resistance and washability. However, due to the limited tensile strain of the S-shaped stranded copper core wire itself and the limitation of the tensile webbing on the elongation rate, its applicability in large deformation scenarios is limited. Although the unidirectional wrapped yarn structure in the literature (Design and performance evaluation of flat and stretchable webbing structure for electronic fabric signal transmission cable [J]. Industrial Textiles. 2023, 41(9): 23-29.) is suitable for power transmission scenarios, it lacks sufficient shielding capability to cope with electromagnetic interference problems in high-speed signal transmission.

[0005] Therefore, developing an elastic webbing that combines high elasticity, self-shielding capability, and multi-channel signal transmission extension function is of great significance for promoting the development of smart clothing. Summary of the Invention

[0006] The purpose of this invention is to solve the problems existing in the prior art and to provide a signal transmission elastic webbing and its weaving method.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] A signal transmission elastic webbing, composed of warp and weft yarns, with a composite fabric structure;

[0009] Part of the warp yarns are covered elastic yarns, and the other part of the warp yarns are double-covered elastic conductive yarns facing each other, while the weft yarns are non-conductive yarns used in textiles and clothing.

[0010] Non-conductive yarn for textiles and clothing is a continuous long strip composed of textile fibers with specific mechanical properties, fineness and softness. We usually call it textile yarn. Here, "yarn" and "thread" are general terms that include many types, such as short fiber yarn, continuous filament, yarn composed of short fiber and continuous filament, and thread made by twisting two or more single yarns together.

[0011] Covered elastic yarns include an elastic core yarn and an outer covering yarn covering its surface;

[0012] The opposing double-wrap elastic conductive yarn includes an elastic core yarn and conductive yarn bundles 1 and 2 wrapped around its surface. Conductive yarn bundles 1 and 2 are wrapped around the surface of the elastic core yarn with Z-twist and S-twist respectively. The twist of conductive yarn bundles 1 and 2 can be different. The twist of conductive yarn bundles 1 and 2 can be adjusted according to their set ideal resistance, appearance and elasticity. The twist determines the number of turns of conductive yarn bundles 1 and 2. The materials of conductive yarn bundles 1 and 2 can be different, as long as they meet the signal transmission requirements.

[0013] "Covering" refers to wrapping the core yarn with the outer yarn, so that the core yarn is not visible on the surface after wrapping. "Wrapping" refers to wrapping the outer yarn in a spiral without overlap around the surface of the core yarn, so that the core yarn is visible on the surface.

[0014] The composite fabric structure is a fabric structure in which a single layer structure (such as plain weave, twill weave, etc., with plain weave preferred, which is formed by the warp and weft yarns interlacing one over the other, with the most interlacing times, resulting in a tight and stable structure) and a tubular three-layer structure are arranged alternately along the width of the webbing.

[0015] Each tubular three-layer structure contains 1-2 opposing double-wrapped elastic conductive yarns in its middle layer; placing these opposing double-wrapped elastic conductive yarns in the middle layer of the tubular three-layer structure achieves the following effect:

[0016] (1) The opposing double-wrap elastic conductive yarns are completely wrapped and will not be exposed, which not only ensures the beautiful appearance of the webbing, but also improves its contact comfort, and enhances the wear resistance of the opposing double-wrap elastic conductive yarns in practical applications.

[0017] (2) By reinforcing the double-wrap elastic conductive yarns, the disordered shrinkage of the double-wrap elastic conductive yarns that may occur inside the webbing after it comes off the machine is effectively suppressed, thereby avoiding the problems of protrusion and exposure, and ensuring that the double-wrap elastic conductive yarns can maintain a stable structure and high resilience when the webbing undergoes mechanical strain.

[0018] The webbing of this invention combines high elasticity, self-shielding, and multi-channel signal transmission extension functions for the following reasons:

[0019] (1) The webbing of the present invention uses covered elastic yarn and opposite double-wrapped elastic conductive yarn as warp yarns. Both warp yarns contain elastic core yarns, which can ensure the good elasticity and tensile strength of the webbing.

[0020] (2) In the webbing of the present invention, the conductive strands 1 and 2 of the opposing double-wrap elastic conductive yarn are spirally wound on the surface of the elastic core yarn in a bidirectional manner of Z twist and S twist, respectively. The bidirectional spiral structure of the conductive strands 1 and 2 can effectively reduce electromagnetic signal interference by simulating the twisting method of twisted pair, thus ensuring the stability and reliability of signal transmission. In addition, while overcoming the low elongation of twisted pair, the elastic core layer increases the spacing between the conductive strands 1 and 2, thereby increasing the parallel capacitance. According to the transmission line theory, when the conductive strands 1 and 2 transmit positive and negative signals respectively, they suppress mutual interference between the two strands by canceling each other out electromagnetic interference. Therefore, the webbing of the present invention has self-shielding capability.

[0021] (3) The webbing of the present invention has a composite fabric structure, wherein the composite fabric structure is a fabric structure in which single-layer structure and tubular three-layer structure are alternately arranged along the width direction of the webbing. A pair of opposing double-wrapped elastic conductive yarns containing a pair of conductive filament bundles (conductive filament bundle 1 and conductive filament bundle 2) satisfies one differential signal transmission. A tubular three-layer structure contains at least one opposing double-wrapped elastic conductive yarn and at most two opposing double-wrapped elastic conductive yarns, so a tubular three-layer structure can satisfy at most two differential signal transmissions. By increasing the number of tubular three-layer structures, the number of differential signal transmission paths can be expanded and increased accordingly. Alternatively, a pair of conductors can be used as positive and negative power lines for power transmission, so that signal transmission can realize both power transmission alone and simultaneous data and power transmission.

[0022] As a preferred technical solution:

[0023] As described above, the elastic webbing for signal transmission has an elastic core filament with a diameter of 600-1000D in the covering elastic yarn. The elastic core filament is made of spandex or rubber monofilament, and the outer covering yarn is made of polyester or nylon.

[0024] As described above, in the signal transmission elastic webbing, the diameter of the elastic core filament in the opposing double-wrap elastic conductive yarn is 800-1200D. The elastic core filament is spandex or rubber multifilament. The conductive filament bundle 1 and the conductive filament bundle 2 are each independently selected from a single strand or a ply filament composed of 6 or more identical single strands. The diameter of the single strand does not exceed 0.08mm, and the single strand is enameled copper wire or enameled silver wire.

[0025] As described above, the non-conductive yarn used in textiles and clothing is one or more of natural fiber yarn, chemical fiber yarn, medium-low twist staple fiber yarn, or network yarn, wherein the twist of the medium-low twist staple fiber yarn is 2 to 20 twists / inch.

[0026] In the signal transmission elastic webbing described above, the number of weave loops in the single layer of the tubular three-layer structure does not exceed 4; otherwise, the opposing double-wrap elastic conductive yarns are prone to being exposed on the surface of the webbing.

[0027] As described above, the signal transmission elastic webbing consists of warp yarns composed of opposing double-wrap elastic conductive yarns with elastic elongation exceeding 100% and covering elastic yarns. The elastic elongation of the signal transmission elastic webbing is 40-75%. The signal transmission function of the elastic webbing is realized by the opposing double-wrap elastic conductive yarns as warp yarns. The opposing double-wrap elastic conductive yarns combine the self-shielding characteristics of twisted-pair yarns with the high elasticity characteristics of elastic yarns. The opposing wrapped conductive yarn bundles 1 and 2 in the opposing double-wrap elastic conductive yarns transmit positive differential signals and negative differential signals respectively, reducing interference and crosstalk, so that the signal transmission elastic webbing achieves self-shielding when transmitting signals not exceeding 10M.

[0028] The present invention also provides a method for weaving a signal transmission elastic webbing as described in any of the preceding claims, comprising the following steps:

[0029] S1, using a spinning machine and a wrapping machine to prepare coated elastic yarn and opposing double-wrapped elastic conductive yarn respectively, setting the width and length of the signal transmission elastic webbing, and calculating the machine length of the coated elastic yarn and the opposing double-wrapped elastic conductive yarn, and the usage length of the coated elastic yarn and the opposing double-wrapped elastic conductive yarn;

[0030] The length of warp yarn to be used on the loom refers to the length of yarn to be prepared before weaving, based on the required length of the webbing. For example, if you want to weave a 1m long webbing, considering the shrinkage rate of the warp yarn during the weaving process and the need to fix the warp yarn at both ends of the loom, you need to prepare 1.5m of warp yarn before weaving. The length of warp yarn to be used on the loom must be greater than the length of the webbing to be woven. The length of warp yarn to be used on the loom includes the part of the warp yarn that is fixed at both ends of the loom.

[0031] Used length (i.e., the length of the opposing double-wrap elastic conductive yarns contained in the webbing after it comes off the machine);

[0032] S2, set the resistance of the signal transmission elastic webbing, calculate the number of opposing double-wrap elastic conductive yarns and the number of covering elastic yarns, set the weave structure of the signal transmission elastic webbing, the warp position of the opposing double-wrap elastic conductive yarns in the signal transmission elastic webbing, the warp position of the covering elastic yarns in the signal transmission elastic webbing, and thread the heddles.

[0033] The formula used to calculate the number of opposing double-wrap elastic conductive yarns is as follows:

[0034]

[0035] In the formula, N is the number of opposing double-wrap elastic conductive yarns; R 织带 The resistance of the elastic webbing used for signal transmission, measured in Ω; R 导电纱 Resistance of double-wrapped elastic conductive yarns in opposite directions, in Ω;

[0036] R 导电纱 The calculation formula is as follows:

[0037]

[0038] In the formula, ρ1 and ρ2 correspond to the resistivity of conductive wire bundle 1 and conductive wire bundle 2, respectively, in Ω·m; n1 and n2 correspond to the number of turns of conductive wire bundle 1 and conductive wire bundle 2, respectively, in turns; r is the radius of the elastic core filament in the opposing double-wrap elastic conductive yarn, in meters; a1 and a2 correspond to the number of strands of conductive wire bundle 1 and conductive wire bundle 2, respectively; S1 and S2 correspond to the cross-sectional area of ​​a single strand of conductive wire bundle 1 and conductive wire bundle 2, respectively, in meters. 2 β1 and β2 correspond to the spiral ascent angles of conductive wire bundle 1 and conductive wire bundle 2, respectively, in degrees.

[0039] The number of elastic yarns used for covering is calculated based on the width of the webbing, the diameter of the yarns, the tightness of the arrangement, and the number of repeats in the fabric structure.

[0040] S3. Measure the initial average tension of the warp yarns on the loom. Based on the initial average tension of the warp yarns on the loom, obtain the elastic elongation ratio of the covered elastic yarn and the elastic elongation ratio of the opposing double-wrapped elastic conductive yarns on the loom. Based on the elastic elongation ratio of the covered elastic yarn, the elastic elongation ratio of the opposing double-wrapped elastic conductive yarns on the loom, and the length of the opposing double-wrapped elastic conductive yarns used, determine the warp feed ratio of the covered elastic yarn and the opposing double-wrapped elastic conductive yarns (i.e., the ratio of the warp feed amount of the covered elastic yarn and the opposing double-wrapped elastic conductive yarns during weaving).

[0041] The elastic elongation ratio refers to the ratio of the length of the warp yarn after stretching during installation to the original length of the warp yarn before installation. Those skilled in the art know that the elastic elongation during installation can be indirectly calculated by testing the initial tension of the warp yarn and combining it with the elastic characteristics of the warp yarn. For example, if a covered elastic yarn requires a force of 30 cN to stretch from 10 cm to 20 cm, then the elastic elongation can be determined by testing the initial tension of the warp yarn during installation. For example, if the measured initial tension of the warp yarn is 30 cN, it can be determined that the warp yarn has actually stretched by 10 cm.

[0042] The warp feed ratio of the covered elastic yarn and the opposing double-wrapped elastic conductive yarn is calculated using a ratio, which is mainly determined by the elastic elongation ratio of the two warp yarns on the loom, while also considering the length of the opposing double-wrapped elastic conductive yarn used. By measuring the initial tension of the warp yarns when they are put on the loom, we can determine their elastic elongation ratio. Assume that the covered elastic yarn actually elongates from 10cm to 20cm during the loom process, while the opposing double-wrapped elastic conductive yarn actually elongates from 10cm to 16cm. Since the amount of warp yarn unwinding on the loom's warp beam is a fixed value, and ideally, both warp yarns should eventually return to their initial length of 10cm; however, due to the material... Due to their different elastic properties, the recovery speed of the covered elastic yarn is faster than that of the opposing double-wrapped elastic conductive yarn. This means that when the covered elastic yarn has recovered to 6cm, the opposing double-wrapped elastic conductive yarn may only have recovered to 4cm. To maintain a balance between the two warp yarns during the recovery process, we need to set different warp feed ratios. By adjusting the warp feed ratio, we can ensure that the warp feed of the opposing double-wrapped elastic conductive yarn is greater than that of the covered elastic yarn in the same amount of time, to compensate for its slower recovery speed. Based on the above ratio, we set the warp feed ratio of the covered elastic yarn to the opposing double-wrapped elastic conductive yarn to 1:1.5 to ensure that the recovery process of the two reaches a balance.

[0043] S4, set the elastic elongation rate of the signal transmission elastic webbing, and determine the on-machine elastic recovery rate of the covering elastic yarn, the on-machine elastic recovery rate of the opposite double-wrapped elastic conductive yarn, and the on-machine weft density based on the elastic elongation rate of the signal transmission elastic webbing, so that the resistance and elastic elongation ratio of the signal transmission elastic webbing after coming off the machine meet the specified value requirements, while maintaining a flat appearance.

[0044] The set value of the elastic elongation rate of the signal transmission elastic webbing is generally determined according to the application requirements, and this set value is the target value; the elastic recovery rate of the yarn refers to the proportion of elastic elongation generated by the warp yarn when it is on the machine that can recover after it is off the machine. It is usually expressed as the percentage change between the elastic elongation when it is on the machine and the actual length after it is off the machine; generally speaking, if the target value is larger, the elastic recovery rate of the warp yarn on the machine is required to be higher and the weft density on the machine is smaller.

[0045] S5, set the elastic elongation rate of the signal transmission elastic webbing after weaving, select the weft yarn according to the elastic elongation rate of the signal transmission elastic webbing and the weft density of the upper machine, start weaving, and the signal transmission elastic webbing is obtained after weaving is completed.

[0046] The elastic elongation rate after unwinding refers to the ratio between the elastic elongation of the webbing under tension after unwinding and its original length. When both the elastic elongation rate after unwinding and the weft density on the machine are large, a finer weft yarn should be selected to maintain the stability and performance of the fabric. Conversely, if the elastic elongation rate after unwinding or the weft density on the machine is small, a finer weft yarn can be selected.

[0047] This invention employs a shuttle weaving process combined with differentiated warp tension adjustment technology, using a double-beam rapier loom to control the on-machine stretch ratio or feed amount of the elastic warp yarns. The aim is to ensure that the elastic warp yarns can achieve high elastic deformation along the length of the webbing within the webbing itself. However, because this invention uses two types of elastic warp yarns with different elastic elongation ratios to weave the webbing, the feed amount of one warp beam during the warp feeding process will result in different shrinkage amounts for the two groups of warp yarns after they exit the loom. This difference can cause warping of the webbing, and may even lead to a situation where the elastic recovery length of the opposing double-wrapped elastic conductive yarns is insufficient to match that of the covering elastic yarn, causing the latter to be squeezed and exposed.

[0048] When using two warp beams to wind one type of elastic warp yarn separately, the stretch ratio of the two warp yarns must be precisely adjusted during the weaving process to ensure that this ratio is controlled within a suitable range of their stretch limits. This is to maintain a balance in the elastic elongation of the two warp yarns. In this way, the recovery forces of the two elastic warp yarns in the weave after weaving are balanced; that is, the elastic recovery of the conductive yarn inside the weave is synchronized with the recovery of the covering elastic yarn, thus avoiding weave warping or curling caused by differences in elastic shrinkage after weaving. This treatment results in a flat weave with no exposed double-wrapped elastic conductive yarns, which is one of its structural characteristics.

[0049] Because the elastic elongation and contraction of both warp yarns remain within a balanced range, the relative slippage between the warp and weft yarns is effectively reduced when the webbing undergoes repeated stretching and recovery cycles. This reduced relative slippage helps the webbing maintain a stable structure, thereby ensuring that the electrical characteristics and signal transmission parameters of the webbing remain stable.

[0050] As a preferred technical solution:

[0051] As described above, in step S1, the preparation process of the covered elastic yarn is as follows: under the conditions of a hollow spindle rotation speed of 10000 r / min and a pre-stretch of the elastic core yarn of 3 times, the outer yarn on the hollow spindle is wrapped around the pulled elastic core yarn to obtain the covered elastic yarn, wherein the wrapping twist of the outer yarn is 800 twists / cm.

[0052] The preparation process of the opposing double-wound elastic conductive yarn is as follows: First, the conductive yarn bundle 1 is passed through the hollow spindle twisted in the Z direction and wrapped uniformly on the surface of the elastic core yarn at a rotation speed of 300 r / min. Then, the conductive yarn bundle 2 is passed through the hollow spindle twisted in the S direction and wrapped uniformly on the surface of the elastic core yarn at a rotation speed of 300 r / min, thus obtaining the opposing double-wound elastic conductive yarn. The conductive yarn bundle 1 and the conductive yarn bundle 2 are both wrapped at a twist of 270 twists / cm.

[0053] As described above, in step S2, the heddle is threaded using an eight-page heddle frame and a sequential threading method.

[0054] As described above, in step S4, the weft density ranges from 40 to 80 threads / 10cm.

[0055] Beneficial effects:

[0056] The present invention uses covered elastic yarn and opposing double-wrapped elastic conductive yarn as warp yarns. Both types of warp yarns contain elastic core yarns, which can ensure the good elasticity and tensile strength of the webbing.

[0057] The signal transmission elastic webbing of this invention features a unique design of opposing double-wrapped elastic conductive yarns. Conductive yarn bundle 1 and conductive yarn bundle 2 are spirally wound on the elastic core yarn in Z-twist and S-twist patterns, respectively, simulating the twisting method of twisted pair cables. This effectively reduces electromagnetic signal interference and ensures stable and reliable signal transmission. Furthermore, this wrapping structure not only overcomes the low elongation limitation of twisted pair cables but also increases the distance between conductive yarn bundles through the elastic core layer, thereby increasing the parallel capacitance. It further suppresses mutual interference between the two wires through the electromagnetic cancellation principle in transmission line theory, giving the webbing self-shielding capability.

[0058] The signal transmission elastic webbing of the present invention has a composite fabric structure, which is composed of a single-layer structure and a tubular three-layer structure arranged alternately. The opposing double-wrapped elastic conductive yarns within each tubular three-layer structure can support at most two differential signal transmissions. By increasing the number of tubular three-layer structures, the number of signal transmission paths can be expanded, and synchronous transmission of power and data is supported. Brief Description of the Drawings

[0059] Figure 1 Schematic diagram of the organizational structure of the signal transmission elastic webbing woven for Embodiments 1, 3, 4, and 5 of the present invention;

[0060] Figure 2 Cross-sectional schematic diagram of the organizational structure of the signal transmission elastic webbing woven for Embodiments 1, 3, and 4 of the present invention; where "iii" represents one tissue cycle yarn of the surface layer tissue in the tubular three-layer structure, "one two" represents one tissue cycle yarn of the intermediate layer tissue in the tubular three-layer structure, and "ⅠⅡ" represents one tissue cycle yarn of the inner layer tissue in the tubular three-layer structure;

[0061] Figure 3 Schematic diagram of the organizational structure of the signal transmission elastic webbing woven for Embodiment 2 of the present invention;

[0062] Figure 4 Cross-sectional schematic diagram of the organizational structure of the signal transmission elastic webbing woven for Embodiment 2 of the present invention; where "iii" represents one tissue cycle yarn of the surface layer tissue in the tubular three-layer structure, "one two" represents one tissue cycle yarn of the intermediate layer tissue in the tubular three-layer structure, and "ⅠⅡ" represents one tissue cycle yarn of the inner layer tissue in the tubular three-layer structure;

[0063] Figure 5 Cross-sectional schematic diagram of the organizational structure of the signal transmission elastic webbing woven for Embodiment 5 of the present invention; where "iii" represents one tissue cycle yarn of the surface layer tissue in the tubular three-layer structure, "one two" represents one tissue cycle yarn of the intermediate layer tissue in the tubular three-layer structure, and "ⅠⅡ" represents one tissue cycle yarn of the inner layer tissue in the tubular three-layer structure;

[0064] Figure 6 Schematic diagram of the structure of the opposing double-wrapped elastic conductive yarn prepared for Embodiment 1 of the present invention;

[0065] Figure 7 Weaving flow chart of the signal transmission elastic webbing of the present invention;

[0066] Figure 8Weaving drawing of the signal transmission elastic webbing for Embodiment 1 of the present invention; where, "iii" represents one repeat yarn of the surface layer tissue in the tubular three-layer tissue, "one two" represents one repeat yarn of the middle layer tissue in the tubular three-layer tissue, "ⅠⅡ" represents one repeat yarn of the inner layer tissue in the tubular three-layer tissue; "△" represents the inserted opposite double-package elastic conductive yarn, "■" represents the tissue point where the warp floats on the weft in the surface layer tissue of the tubular three-layer tissue, "×" represents the tissue point where the warp floats on the weft in the middle layer tissue of the tubular three-layer tissue, "※" represents the tissue point where the warp floats on the weft in the inner layer tissue of the tubular three-layer tissue. It indicates that when weaving the weft yarn of the middle layer of the tubular three-layer tissue, the warp yarn of the surface layer of the tubular three-layer tissue is lifted, and "○" indicates that when weaving the weft yarn of the inner layer of the tubular three-layer tissue, both the surface layer and middle layer warp yarns of the tubular three-layer tissue are lifted;

[0067] Figure 9 It is the corresponding relationship diagram between the off-machine elastic elongation rate and the on-machine weft density of the signal transmission elastic webbing in each embodiment of the present invention;

[0068] Where, 1 - opposite double-package elastic conductive yarn, 2 - weft yarn, 3 - covered elastic yarn. Specific embodiments

[0069] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of this application.

[0070] In the following embodiments, the formula for calculating the number of opposite double-package elastic conductive yarns is as follows:

[0071]

[0072] In the formula, N is the number of opposite double-package elastic conductive yarns; R 织带 is the resistance of the signal transmission elastic webbing, in units of Ω; R 导电纱 is the resistance of the opposite double-package elastic conductive yarn, in units of Ω;

[0073] R 导电纱 The calculation formula of is as follows:

[0074]

[0075] In the formula, ρ1 and ρ2 correspond to the resistivity of conductive wire bundle 1 and conductive wire bundle 2, respectively, in Ω·m; n1 and n2 correspond to the number of turns of conductive wire bundle 1 and conductive wire bundle 2, respectively, in turns; r is the radius of the elastic core filament in the opposing double-wrap elastic conductive yarn, in meters; a1 and a2 correspond to the number of strands of conductive wire bundle 1 and conductive wire bundle 2, respectively; S1 and S2 correspond to the cross-sectional area of ​​a single strand of conductive wire bundle 1 and conductive wire bundle 2, respectively, in meters. 2 β1 and β2 correspond to the spiral ascent angles of the winding of conductive wire bundle 1 and conductive wire bundle 2, respectively, in degrees.

[0076] Example 1

[0077] A method for weaving elastic webbing for signal transmission, such as Figure 7 As shown, the specific steps are as follows:

[0078] S1. Prepare the covered elastic yarn and the opposite double-wrapped elastic conductive yarn respectively. Set the width (1.3cm) and length (1m) of the signal transmission elastic webbing. Calculate the machine length of the covered elastic yarn (1.3m), the machine length of the opposite double-wrapped elastic conductive yarn (1.5m), the usage length of the covered elastic yarn (0.62m), and the usage length of the opposite double-wrapped elastic conductive yarn (0.85m).

[0079] The preparation process of the covered elastic yarn is as follows: under the conditions of a hollow spindle rotation speed of 10000 r / min and a pre-stretch of the elastic core filament a (rubber monofilament, diameter of 600D) of 3 times, the outer yarn (nylon yarn, diameter of 40D) on the hollow spindle is wrapped around the drawn elastic core filament a with a wrapping twist of 800 twists / cm to obtain the covered elastic yarn.

[0080] The preparation process of the opposing double-wound elastic conductive yarn is as follows: First, conductive yarn bundle 1 (single strand enameled silver wire, diameter 0.06mm) is passed through a hollow spindle twisted in the Z direction and uniformly wound on the surface of elastic core yarn b (rubber multifilament, diameter 800D) at a wrapping twist of 270 twists / cm and a rotation speed of 300 r / min. Then, conductive yarn bundle 2 (single strand enameled silver wire, diameter 0.06mm) is passed through a hollow spindle twisted in the S direction and uniformly wound on the surface of elastic core yarn b at a wrapping twist of 270 twists / cm and a rotation speed of 300 r / min, thus obtaining the opposing double-wound elastic conductive yarn (structure as shown in the figure). Figure 6 (as shown);

[0081] S2, set the resistance of the signal transmission elastic webbing (0.98Ω), calculate the number of opposing double-wrap elastic conductive yarns (8 yarns) and the number of covering elastic yarns (48 yarns), set the weave structure of the signal transmission elastic webbing, the warp position of the opposing double-wrap elastic conductive yarns in the signal transmission elastic webbing, and the warp position of the covering elastic yarns in the signal transmission elastic webbing, and use an eight-page heddle frame and the forward threading method to thread the heddles;

[0082] S3, Measure the initial average tension of the warp yarns on the machine (40cN for the covered elastic yarn and 90cN for the opposing double-wrapped elastic conductive yarns). Based on the initial average tension of the warp yarns on the machine, obtain the machine elastic elongation ratio of the covered elastic yarn (5:2) and the machine elastic elongation ratio of the opposing double-wrapped elastic conductive yarns (3:2). Based on the machine elastic elongation ratio of the covered elastic yarn, the machine elastic elongation ratio of the opposing double-wrapped elastic conductive yarns, and the length of the opposing double-wrapped elastic conductive yarns used, determine the warp feed ratio of the covered elastic yarn and the opposing double-wrapped elastic conductive yarns (1:1.3).

[0083] S4, set the elastic elongation rate of the signal transmission elastic webbing (40%), and determine the on-machine elastic recovery rate of the covering elastic yarn (96%), the on-machine elastic recovery rate of the opposite double-wrapped elastic conductive yarn (95%), and the on-machine weft density (80 threads / 10cm) based on the elastic elongation rate of the signal transmission elastic webbing.

[0084] S5, set the off-machine elastic elongation rate of the signal transmission elastic webbing (56%). Based on the off-machine elastic elongation rate and the on-machine weft density, select the weft yarn (cotton staple fiber yarn, fineness 16S, twist 10 twists / inch), and begin weaving. The signal transmission elastic webbing is obtained upon completion of weaving (see on-machine diagram). Figure 8 (As shown).

[0085] like Figure 1 , Figure 2 As shown, the final woven signal transmission elastic webbing consists of warp and weft yarns 2, with a composite fabric structure. One part of the warp yarns is covered elastic yarn 3, and the other part of the warp yarns are opposing double-wrapped elastic conductive yarns 1. The weft yarns 2 are non-conductive yarns for textiles and clothing. The covered elastic yarn consists of an elastic core filament a and an outer covering yarn (nylon filament) covering its surface. The opposing double-wrapped elastic conductive yarn 1 consists of an elastic core filament b and conductive yarn bundles 1 (single strand enameled silver wire) and 2 (single strand enameled silver wire) wrapped around its surface. The conductive yarn bundles 1 and 2 are wrapped around the surface of the elastic core filament b with Z-twist and S-twist respectively. The composite fabric structure is a fabric structure in which single-layer structure and tubular three-layer structure are arranged alternately along the width of the webbing. The middle layer of each tubular three-layer structure contains one opposing double-wrapped elastic conductive yarn 1, and the number of weave loop yarns in the single layer structure of the tubular three-layer structure is 4.

[0086] Example 2

[0087] A method for weaving elastic webbing for signal transmission, such as Figure 7 As shown, the specific steps are as follows:

[0088] S1. Prepare the covered elastic yarn and the opposite double-wrapped elastic conductive yarn respectively. Set the width (1.3cm) and length (1m) of the signal transmission elastic webbing. Calculate the machine length of the covered elastic yarn (1.3m), the machine length of the opposite double-wrapped elastic conductive yarn (1.5m), the usage length of the covered elastic yarn (0.62m), and the usage length of the opposite double-wrapped elastic conductive yarn (0.85m).

[0089] The preparation process of the covered elastic yarn is as follows: under the conditions of a hollow spindle rotation speed of 10000 r / min and a pre-stretch of the elastic core filament a (rubber monofilament, diameter of 600D) of 3 times, the outer yarn (nylon yarn, diameter of 40D) on the hollow spindle is wrapped around the drawn elastic core filament a with a wrapping twist of 800 twists / cm to obtain the covered elastic yarn.

[0090] The preparation process of the opposing double-wound elastic conductive yarn is as follows: First, the conductive yarn bundle 1 (single strand enameled silver wire with a diameter of 0.06 mm) is passed through the hollow spindle twisted in the Z direction and wrapped uniformly on the surface of the elastic core yarn b (spandex with a diameter of 800 D) at a wrapping twist of 270 twists / cm and a rotation speed of 300 r / min. Then, the conductive yarn bundle 2 (single strand enameled silver wire with a diameter of 0.06 mm) is passed through the hollow spindle twisted in the S direction and wrapped uniformly on the surface of the elastic core yarn b at a wrapping twist of 270 twists / cm and a rotation speed of 300 r / min, thus obtaining the opposing double-wound elastic conductive yarn.

[0091] S2, set the resistance of the signal transmission elastic webbing (1.25Ω), calculate the number of opposing double-wrap elastic conductive yarns (6) and the number of covering elastic yarns (44), set the weave structure of the signal transmission elastic webbing, the warp position of the opposing double-wrap elastic conductive yarns in the signal transmission elastic webbing, and the warp position of the covering elastic yarns in the signal transmission elastic webbing, and use an eight-page heddle frame and the forward threading method to thread the heddles;

[0092] S3, Measure the initial average tension of the warp yarns on the machine (40cN for the covered elastic yarn and 90cN for the opposing double-wrapped elastic conductive yarns). Based on the initial average tension of the warp yarns on the machine, obtain the machine elastic elongation ratio of the covered elastic yarn (5:2) and the machine elastic elongation ratio of the opposing double-wrapped elastic conductive yarns (3:2). Based on the machine elastic elongation ratio of the covered elastic yarn, the machine elastic elongation ratio of the opposing double-wrapped elastic conductive yarns, and the length of the opposing double-wrapped elastic conductive yarns used, determine the warp feed ratio of the covered elastic yarn and the opposing double-wrapped elastic conductive yarns (1:1.3).

[0093] S4, set the elastic elongation rate of the signal transmission elastic webbing (40%), and determine the on-machine elastic recovery rate of the covering elastic yarn (96%), the on-machine elastic recovery rate of the opposite double-wrapped elastic conductive yarn (95%), and the on-machine weft density (80 threads / 10cm) based on the elastic elongation rate of the signal transmission elastic webbing.

[0094] S5, set the down-machine elastic elongation rate of the signal transmission elastic webbing (56%), select the weft yarn (cotton short fiber yarn, fineness of 16S, twist of 10 twists / inch) according to the down-machine elastic elongation rate of the signal transmission elastic webbing and the up-machine weft density, start weaving, and the signal transmission elastic webbing is obtained after weaving is completed.

[0095] The final woven signal transmission elastic webbing has a composite fabric structure (such as...). Figure 3 , Figure 4 (As shown); the composite fabric structure is a fabric structure with alternating plain weave and tubular three-layer weave; the middle layer of each tubular three-layer weave contains one double-wrapped elastic conductive yarn facing each other, and the number of weave loop yarns in the single layer of the tubular three-layer weave is 2.

[0096] Example 3

[0097] A method for weaving elastic webbing for signal transmission, such as Figure 7 As shown, the specific steps are as follows:

[0098] S1. Prepare the covered elastic yarn and the opposite double-wrapped elastic conductive yarn respectively. Set the width (1.3cm) and length (1m) of the signal transmission elastic webbing. Calculate the machine length of the covered elastic yarn (1.3m), the machine length of the opposite double-wrapped elastic conductive yarn (1.5m), the usage length of the covered elastic yarn (0.62m), and the usage length of the opposite double-wrapped elastic conductive yarn (0.85m).

[0099] The preparation process of the covered elastic yarn is as follows: under the conditions of a hollow spindle rotation speed of 10000 r / min and a pre-stretch of the elastic core filament a (rubber monofilament, diameter of 600D) of 3 times, the outer yarn (nylon yarn, diameter of 40D) on the hollow spindle is wrapped around the drawn elastic core filament a with a wrapping twist of 800 twists / cm to obtain the covered elastic yarn.

[0100] The preparation process of the opposing double-wound elastic conductive yarn is as follows: First, the conductive yarn bundle 1 (a strand of 6 identical single-strand enameled silver wires with a diameter of 0.08 mm) is passed through a hollow spindle twisted in the Z direction and wrapped uniformly on the surface of the elastic core yarn b (rubber multifilament with a diameter of 800 D) at a wrapping twist of 270 twists / cm and a rotation speed of 300 r / min. Then, the conductive yarn bundle 2 (a strand of 6 identical single-strand enameled copper wires with a diameter of 0.08 mm) is passed through a hollow spindle twisted in the S direction and wrapped uniformly on the surface of the elastic core yarn b at a wrapping twist of 270 twists / cm and a rotation speed of 300 r / min, thus obtaining the opposing double-wound elastic conductive yarn.

[0101] S2, set the resistance of the signal transmission elastic webbing (0.15Ω), calculate the number of opposing double-wrap elastic conductive yarns (8 yarns) and the number of covering elastic yarns (48 yarns), set the weave structure of the signal transmission elastic webbing, the warp position of the opposing double-wrap elastic conductive yarns in the signal transmission elastic webbing, and the warp position of the covering elastic yarns in the signal transmission elastic webbing, and use an eight-page heddle frame and the forward threading method to thread the heddles;

[0102] S3, Measure the initial average tension of the warp yarns on the machine (40cN for the covered elastic yarn and 90cN for the opposing double-wrapped elastic conductive yarns). Based on the initial average tension of the warp yarns on the machine, obtain the machine elastic elongation ratio of the covered elastic yarn (5:2) and the machine elastic elongation ratio of the opposing double-wrapped elastic conductive yarns (3:2). Based on the machine elastic elongation ratio of the covered elastic yarn, the machine elastic elongation ratio of the opposing double-wrapped elastic conductive yarns, and the length of the opposing double-wrapped elastic conductive yarns used, determine the warp feed ratio of the covered elastic yarn and the opposing double-wrapped elastic conductive yarns (1:1.3).

[0103] S4, set the elastic elongation rate of the signal transmission elastic webbing (40%), and determine the on-machine elastic recovery rate of the covering elastic yarn (96%), the on-machine elastic recovery rate of the opposite double-wrapped elastic conductive yarn (95%), and the on-machine weft density (80 threads / 10cm) based on the elastic elongation rate of the signal transmission elastic webbing.

[0104] S5, set the down-machine elastic elongation rate of the signal transmission elastic webbing (56%), select the weft yarn (cotton short fiber yarn, fineness of 16S, twist of 10 twists / inch) according to the down-machine elastic elongation rate of the signal transmission elastic webbing and the up-machine weft density, start weaving, and the signal transmission elastic webbing is obtained after weaving is completed.

[0105] The final woven signal transmission elastic webbing has a composite fabric structure (such as...). Figure 1 , Figure 2(As shown); the composite fabric structure is a fabric structure with alternating plain weave and tubular three-layer weave; the middle layer of each tubular three-layer weave contains one double-wrapped elastic conductive yarn facing each other, and the number of weave loop yarns in the single layer of the tubular three-layer weave is 4.

[0106] Example 4

[0107] A method for weaving elastic webbing for signal transmission, such as Figure 7 As shown, the specific steps are as follows:

[0108] S1. Prepare the covered elastic yarn and the opposite double-wrapped elastic conductive yarn respectively. Set the width (1.3cm) and length (1m) of the signal transmission elastic webbing. Calculate the machine length of the covered elastic yarn (1.3m), the machine length of the opposite double-wrapped elastic conductive yarn (1.5m), the usage length of the covered elastic yarn (0.62m), and the usage length of the opposite double-wrapped elastic conductive yarn (0.85m).

[0109] The preparation process of the covered elastic yarn is as follows: under the conditions of a hollow spindle rotation speed of 10000 r / min and a pre-stretch of the elastic core yarn a (spandex, diameter of 840D) by 3 times, the outer yarn (polyester yarn, diameter of 40D) on the hollow spindle is wrapped around the drawn elastic core yarn a with a wrapping twist of 800 twists / cm to obtain the covered elastic yarn.

[0110] The preparation process of the opposing double-wound elastic conductive yarn is as follows: First, the conductive yarn bundle 1 (a strand of 6 identical single-strand enameled copper wires with a diameter of 0.04 mm) is passed through a hollow spindle twisted in the Z direction and wrapped uniformly on the surface of the elastic core yarn b (spandex with a diameter of 960 D) at a wrapping twist of 270 twists / cm and a rotation speed of 300 r / min. Then, the conductive yarn bundle 2 (a strand of 6 identical single-strand enameled silver wires with a diameter of 0.04 mm) is passed through a hollow spindle twisted in the S direction and wrapped uniformly on the surface of the elastic core yarn b at a wrapping twist of 270 twists / cm and a rotation speed of 300 r / min, thus obtaining the opposing double-wound elastic conductive yarn.

[0111] S2, set the resistance of the signal transmission elastic webbing (0.70Ω), calculate the number of opposing double-wrap elastic conductive yarns (8) and the number of covering elastic yarns (48), set the weave structure of the signal transmission elastic webbing, the warp position of the opposing double-wrap elastic conductive yarns in the signal transmission elastic webbing, and the warp position of the covering elastic yarns in the signal transmission elastic webbing, and use an eight-page heddle frame and the forward threading method to thread the heddles;

[0112] S3, Measure the initial average tension of the warp yarns on the machine (35cN for the covered elastic yarn and 85cN for the opposing double-wrapped elastic conductive yarns). Based on the initial average tension of the warp yarns on the machine, obtain the machine elastic elongation ratio of the covered elastic yarn (5:2) and the machine elastic elongation ratio of the opposing double-wrapped elastic conductive yarns (5:4). Based on the machine elastic elongation ratio of the covered elastic yarn, the machine elastic elongation ratio of the opposing double-wrapped elastic conductive yarns, and the length of the opposing double-wrapped elastic conductive yarns used, determine the warp feed ratio of the covered elastic yarn and the opposing double-wrapped elastic conductive yarns (1:1.3).

[0113] S4, set the elastic elongation rate of the signal transmission elastic webbing (40%), and determine the on-machine elastic recovery rate of the covering elastic yarn (96%), the on-machine elastic recovery rate of the opposite double-wrapped elastic conductive yarn (95%), and the on-machine weft density (60 threads / 10cm) based on the elastic elongation rate of the signal transmission elastic webbing.

[0114] S5, set the down-machine elastic elongation rate of the signal transmission elastic webbing (65%), select the weft yarn (polyester network multifilament, specification 330D / 96F) according to the down-machine elastic elongation rate of the signal transmission elastic webbing and the up-machine weft density, start weaving, and the signal transmission elastic webbing is obtained after weaving is completed.

[0115] The final woven signal transmission elastic webbing has a composite fabric structure (such as...). Figure 1 , Figure 2 (As shown); the composite fabric structure is a fabric structure with alternating twill and tubular three-layer structure; the middle layer of each tubular three-layer structure contains one double-wrapped elastic conductive yarn facing each other, and the number of weave loop yarns in the single layer of the tubular three-layer structure is 4.

[0116] Example 5

[0117] A method for weaving elastic webbing for signal transmission, such as Figure 7 As shown, the specific steps are as follows:

[0118] S1. Prepare the covered elastic yarn and the opposite double-wrapped elastic conductive yarn respectively. Set the width (1.3cm) and length (1m) of the signal transmission elastic webbing. Calculate the machine length of the covered elastic yarn (1.3m), the machine length of the opposite double-wrapped elastic conductive yarn (1.5m), the usage length of the covered elastic yarn (0.62m), and the usage length of the opposite double-wrapped elastic conductive yarn (0.85m).

[0119] The preparation process of the covered elastic yarn is as follows: under the conditions of a hollow spindle rotation speed of 10000 r / min and a pre-stretch of the elastic core yarn a (spandex, diameter of 1000D) by 3 times, the outer yarn (polyester yarn, diameter of 40D) on the hollow spindle is wrapped around the drawn elastic core yarn a with a wrapping twist of 800 twists / cm to obtain the covered elastic yarn.

[0120] The preparation process of the opposing double-wound elastic conductive yarn is as follows: First, the conductive yarn bundle 1 (a strand of 8 identical single-strand enameled copper wires with a diameter of 0.02 mm) is passed through a hollow spindle twisted in the Z direction and wrapped uniformly on the surface of the elastic core yarn b (spandex with a diameter of 1200D) at a wrapping twist of 270 twists / cm and a rotation speed of 300 r / min. Then, the conductive yarn bundle 2 (a strand of 8 identical single-strand enameled copper wires with a diameter of 0.02 mm) is passed through a hollow spindle twisted in the S direction and wrapped uniformly on the surface of the elastic core yarn b at a wrapping twist of 270 twists / cm and a rotation speed of 300 r / min, thus obtaining the opposing double-wound elastic conductive yarn.

[0121] S2, set the resistance of the signal transmission elastic webbing (1.06Ω), calculate the number of opposing double-wrap elastic conductive yarns (8 yarns) and the number of covering elastic yarns (24 yarns), set the weave structure of the signal transmission elastic webbing, the warp position of the opposing double-wrap elastic conductive yarns in the signal transmission elastic webbing, and the warp position of the covering elastic yarns in the signal transmission elastic webbing, and use an eight-page heddle frame and the forward threading method to thread the heddles;

[0122] S3, Measure the initial average tension of the warp yarns on the machine (30cN for the covered elastic yarn and 80cN for the opposing double-wrapped elastic conductive yarns). Based on the initial average tension of the warp yarns on the machine, obtain the machine elastic elongation ratio of the covered elastic yarn (5:2) and the machine elastic elongation ratio of the opposing double-wrapped elastic conductive yarns (2:1). Based on the machine elastic elongation ratio of the covered elastic yarn, the machine elastic elongation ratio of the opposing double-wrapped elastic conductive yarns, and the length of the opposing double-wrapped elastic conductive yarns used, determine the warp feed ratio of the covered elastic yarn and the opposing double-wrapped elastic conductive yarns (1:1.1).

[0123] S4, set the elastic elongation rate of the signal transmission elastic webbing (40%), and determine the on-machine elastic recovery rate of the covering elastic yarn (98%), the on-machine elastic recovery rate of the opposite double-wrapped elastic conductive yarn (97%), and the on-machine weft density (40 threads / 10cm) based on the elastic elongation rate of the signal transmission elastic webbing.

[0124] S5, set the down-machine elastic elongation rate of the signal transmission elastic webbing (75%), select the weft yarn (polyester network multifilament, specification 330D / 96F) according to the down-machine elastic elongation rate of the signal transmission elastic webbing and the up-machine weft density, start weaving, and the signal transmission elastic webbing is obtained after weaving is completed.

[0125] The final woven signal transmission elastic webbing has a composite fabric structure (such as...). Figure 1 , Figure 5(As shown); the composite fabric structure is a fabric structure with alternating twill and tubular three-layer structure; the middle layer of each tubular three-layer structure contains 2 opposing double-wrap elastic conductive yarns, and the number of weave loop yarns in the single layer of the tubular three-layer structure is 4.

[0126] The relationship between the elastic elongation of the lower loom and the weft density of the signal transmission elastic webbing in Examples 1-5 is as follows: Figure 9 As shown.

Claims

1. A signal transmission elastic webbing, characterized in that, It consists of warp and weft yarns, and its structure is a composite fabric structure; Part of the warp yarns are covered elastic yarns, and the other part of the warp yarns are double-covered elastic conductive yarns facing each other, while the weft yarns are non-conductive yarns used in textiles and clothing. Covered elastic yarns include an elastic core yarn and an outer covering yarn covering its surface; The opposing double-wrap elastic conductive yarn includes an elastic core yarn and conductive yarn bundle one and conductive yarn bundle two wrapped around its surface. The conductive yarn bundle one and conductive yarn bundle two are wrapped around the surface of the elastic core yarn with Z twist and S twist respectively. The composite fabric structure is a fabric structure in which single-layer structure and tubular three-layer structure are arranged alternately along the width of the webbing; Each tubular three-layer structure contains 1-2 opposing double-wrap elastic conductive yarns in the middle layer.

2. The signal transmission elastic webbing according to claim 1, characterized in that, The diameter of the elastic core filament in the covered elastic yarn is 600~1000D. The elastic core filament is spandex or rubber monofilament, and the outer yarn is polyester or nylon.

3. The signal transmission elastic webbing according to claim 1, characterized in that, In the opposing double-wrap elastic conductive yarn, the diameter of the elastic core filament is 800~1200D, and the elastic core filament is spandex or rubber multifilament. Conductive filament bundle one and conductive filament bundle two are each independently selected from single strands or strands made of six or more identical single strands. The diameter of the single strand does not exceed 0.08mm, and the single strand is enameled copper wire or enameled silver wire.

4. The signal transmission elastic webbing according to claim 1, characterized in that, In a tubular three-layer structure, the number of repeating yarns in a single-layer structure does not exceed 4.

5. A method for weaving a signal transmission elastic webbing as described in any one of claims 1 to 4, characterized in that, Includes the following steps: S1, prepare the covered elastic yarn and the opposite double-wrapped elastic conductive yarn respectively, set the width and length of the signal transmission elastic webbing, and calculate the machine length of the covered elastic yarn and the opposite double-wrapped elastic yarn, and the service length of the covered elastic yarn and the opposite double-wrapped elastic yarn. S2, set the resistance of the signal transmission elastic webbing, calculate the number of opposing double-wrap elastic conductive yarns and the number of covering elastic yarns, set the weave structure of the signal transmission elastic webbing, the warp position of the opposing double-wrap elastic conductive yarns in the signal transmission elastic webbing, the warp position of the covering elastic yarns in the signal transmission elastic webbing, and thread the heddles. The formula used to calculate the number of opposing double-wrap elastic conductive yarns is as follows: ； In the formula, N The number of opposing double-wrapped elastic conductive yarns; The resistance of the elastic webbing used for signal transmission, measured in Ω; Resistance of double-wrapped elastic conductive yarns in opposite directions, in Ω; The calculation formula is as follows: In the formula, , These correspond to the resistivity of conductive wire bundle one and conductive wire bundle two, respectively, in Ω·m; n 1 、n 2 corresponds to the number of turns of conductive wire bundle one and conductive wire bundle two, respectively, in units of turns; r The radius of the elastic core filament in a double-wrapped elastic conductive yarn, in meters (m). a 1 、a 2 corresponds to the number of strands of the first and second conductive wire bundles, respectively; S 1 、S 2 corresponds to the cross-sectional area of ​​conductive wire bundle one and conductive wire bundle two, respectively, in meters. 2 ; and These correspond to the spiral ascent angles of conductive wire bundle one and conductive wire bundle two, respectively, in degrees; S3, Measure the initial average tension of the warp yarns on the machine, and obtain the elastic elongation ratio of the covered elastic yarn and the elastic elongation ratio of the opposite double-wrapped elastic conductive yarns based on the initial average tension of the warp yarns on the machine. Determine the feed ratio of the covered elastic yarn and the opposite double-wrapped elastic conductive yarns based on the elastic elongation ratio of the covered elastic yarn, the elastic elongation ratio of the opposite double-wrapped elastic conductive yarns, and the length of the opposite double-wrapped elastic conductive yarns used. S4, set the elastic elongation rate of the signal transmission elastic webbing, and determine the on-machine elastic recovery rate of the covering elastic yarn, the on-machine elastic recovery rate of the opposite double-wrapped elastic conductive yarn, and the on-machine weft density based on the elastic elongation rate of the signal transmission elastic webbing. S5, set the elastic elongation rate of the signal transmission elastic webbing after weaving, select the weft yarn according to the elastic elongation rate of the signal transmission elastic webbing and the weft density of the upper machine, start weaving, and the signal transmission elastic webbing is obtained after weaving is completed.

6. The method according to claim 5, characterized in that, In step S1, the preparation process of the covered elastic yarn is as follows: under the conditions of a hollow spindle rotation speed of 10000 r / min and a pre-stretch of 3 times the elastic core yarn, the outer yarn on the hollow spindle is wrapped around the pulled elastic core yarn to obtain the covered elastic yarn, wherein the wrapping twist of the outer yarn is 800 twists / cm. The preparation process of the opposing double-wound elastic conductive yarn is as follows: First, the first conductive yarn bundle is passed through the hollow spindle twisted in the Z direction and wrapped uniformly on the surface of the elastic core yarn at a rotation speed of 300 r / min. Then, the second conductive yarn bundle is passed through the hollow spindle twisted in the S direction and wrapped uniformly on the surface of the elastic core yarn at a rotation speed of 300 r / min, thus obtaining the opposing double-wound elastic conductive yarn. The first and second conductive yarn bundles are wrapped at a twist of 270 twists / cm.

7. The method according to claim 5, characterized in that, In step S2, the heddle is threaded using an eight-page heddle frame and a sequential threading method.

8. The method according to claim 5, characterized in that, In step S4, the weft density ranges from 40 to 80 threads / 10cm.

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