Coating of conductive yarns for electro-textile applications

Alagirusamy, R.; Eichhoff, Julian R.; Gries, Thomas; Jockenhoevel, Stefan

doi:10.1080/00405000.2012.719295

Cited by 48 publications

(40 citation statements)

References 12 publications

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“…Indeed, these trends could be explained by the conductivities of the materials. More specifically, when the weight of the coated conductive yarn was low, that means the amount of coating with conductive material was less, due to lower amount of conductive material over the surface of the yarn, coated conductive yarn exhibits higher resistivity which means a decrease in conductivity level of the conductive yarn [25,26]. In our case, yarns No.6 and No.7 were the silver-coated polyamide yarns with lesser weights when compared to other conductive yarns and their conductivity levels were also lower than others with higher linear resistance values (see Table 1).…”

Section: Conductivity Of Textile Transmission Linesmentioning

confidence: 99%

The use of hot air welding technologies for manufacturing e-textile trasmission lines

2015

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This study investigated the potential possibilities for obtaining textile transmission lines by incorporating conductive yarns into fabrics through a hot air welding process. Hot air sealing for obtaining textile transmission line was conducted using 100 % PES woven fabric, GoreTex ® waterproof welding tape and seven different conductive yarn types, in order to form different textile transmission lines. By manufacturing using a hot air seam-sealing machine different welding parameters like welding temperature, pressure and velocity were chosen in order to find an optimal welding process for the selected fabric samples. The effects of welding parameters were examined on the electrical properties of the textile transmission lines in terms of conductivity and signal-transferring capability. Besides, the bending properties and morphologies of the welded textile transmission lines were also characterized and subjective evaluations of the appearances of textile transmission lines like puckering and the visual appearances of the surface sides of the welded textile transmission lines. The results based on conductivity and signal transferring capabilities were really promising for the manufacturing of etextile transmission lines via hot air welding technology. Moreover, the results based on bending properties showed that the lower the welding parameters the less rigid the hot air welded textile transmission lines became after welding all the used conductive yarns. Further, suitable combinations of welding parameters with the used components of textile transmission assured suitable visual appearances of the welded textile transmission lines. In this respect this research work offers a usage for hot air welding technology regarding the formations of textile transmission lines which are reliable and durable in functionality while still preserving the textiles' aspects.

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Section: Conductivity Of Textile Transmission Linesmentioning

confidence: 99%

The use of hot air welding technologies for manufacturing e-textile trasmission lines

2015

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“…In recent years, usage of value-added textiles is getting attractions in different fields including medical, sports, detection or monitoring of movement, etc. with the help of actuators and sensors installed within wearable textiles [4][5][6]17]. This dynamic industry is gaining customers interests due to innovations in this area.…”

Section: Introductionmentioning

confidence: 99%

“…For the successfulness of e-textile clothing in the market, all available components should be reliable and able to withstand certain number of washing cycles. Washing is a complex process involving a lot of stresses acting, including mechanical and chemical stresses [17,[31][32][33][34]. To investigate the washability of e-textile, it is important to analyze the washing process firstly and investigate the stresses acting during this process.…”

Section: Introductionmentioning

confidence: 99%

Protocol to assess the quality of transmission lines within smart textile structures

et al. 2020

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a b s t r a c tThe washability issue is always a challenge for electronic textiles in terms of application. It reduces their reliability, makes them not robust enough, and therefore not ready for the market. In this study, a novel protocol was designed to test the performance of conductive threads under wet situation in order to simulate the washing cycle. In this content, two commercially available silver-plated polyamide threads having the same thread count were used and washing results of each thread were discussed. Transmission lines with silver-plated polyamide threads onto cotton woven fabric were produced via sewing (single-line stitch) and embroidery techniques (three-line stitch) to improve the conductivity and robustness. For the simulation of the wash process, Martindale abrasion tester was used under wet and dry conditions. Moreover, felts of abrasion tester and transmission lines were put into different solutions, i.e., water, water with standardized detergent and water with commercially available detergent. After wetting specimens, abrasion tests were performed on transmission lines, and linear electrical resistance measurements were recorded with the multi meter before abrasion and every 1500 cycles up to 4500 cycles in wet conditions and also after drying the transmission lines. Finally, abrasion impact on silver-plated polyamide threads was investigated by optical microscope. It has been found that silver coating on the conductive thread was damaged when subjected to abrasion cycles, especially in wet states. Water itself has stress impact on samples provoking the electrical resistance increase rapidly. Commercial detergent with water was found to have the most damaging effect on the conductive threads because of extra particles presence to enhance the washing performance. In terms of integration methods, better electrical conductivity values were achieved in three-line embroidery transmission lines due to multiple interconnection points in the embroidery network.

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“…In constructing textile sensors in composites, the use of metallic/non-metallic fibres is popular due to their high standard of manufacture reliability as electroconductive textile products [24]. Among the available metallic/non-metallic electroconductive yarn is copper, stainless steel, carbon fibre and silver, although highly expensive, due to the low electrical resistance shown; silver-coated polymeric yarn has a wider range of applications [25].…”

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confidence: 99%