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E-Textiles

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Mechanical Engineering".

Deadline for manuscript submissions: closed (20 August 2021) | Viewed by 8224

Special Issue Editor


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Guest Editor
German Institutes of Textile and Fiber Research Denkendorf, 73770 Denkendorf, Germany
Interests: e-textiles; smart textiles; acoustics; light and sonic textiles; conductive textiles; industry 4.0; textile sensors; cyberphysical systems; electrical engineering; metamaterials

Special Issue Information

Dear Colleagues,

E-textiles are smart textiles with integrated electronics or electrical functionality. This electrical functionality is often required to operate sensors or actuators. In addition, the sensor properties are often implemented directly on the lowest textile level, on the fibers or on the yarn itself. In this case, too, the sensors or actuators are operated, controlled or read out directly with electricity. The energy supply is also an important component of e-textiles. This can be done, for example, either via batteries or via electrical energy generation on or in the e-textiles. Energy and information are brought to sensors or actuators via electrically conductive structures, wireless energy transfer, or even bus systems. Sensors (e.g., on SMDs) or textile sensor structures in e-textiles can detect, e.g., temperature, pressure, elongation, movement, humidity, light, gases or electrical potentials. In addition, light, heat or even movement can also be generated in e-textiles. E-textiles could be a component of cyberphysical systems. The connection technology of the electrical components in e-textiles represents a major challenge in terms of wash resistance and mechanical stability.

The basis of e-textiles is formed by woven fabrics, knitted fabrics, warp-knitted fabrics, non-woven or even embroidered structures with electrically conductive components, yarns or fibers. All of these topics are the subject of current research and are being intensively studied. As a result wearables and products are being developed. The subject of this Special Issue is to present new developments and the latest research results on e-textiles and their components.

Dr. Michael Haupt
Guest Editor

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Keywords

  • Electronic textiles/e-textiles
  • Textile sensors
  • Printed electronics
  • Energy supply/batteries/contactless energy transfer
  • Energy harvesting
  • Bus computing
  • Textile pressure and elongation sensor
  • Textile electrodes
  • Applicatoins of e-textiles
  • Cyberphysical systems
  • Wearables
  • Measurement of vital parameters
  • Integration of smd on textiles
  • Packaging
  • Connectivity
  • Sensor yarns
  • Woven fabric/knitted fabric/warp-knitted fabric/non-woven/embroidered structures

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Published Papers (2 papers)

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Research

14 pages, 10069 KiB  
Article
New Flexible Protective Coating for Printed Smart Textiles
by Valérie Bartsch, Volkmar von Arnim, Sven Kuijpens, Michael Haupt, Thomas Stegmaier and Götz T. Gresser
Appl. Sci. 2021, 11(2), 664; https://doi.org/10.3390/app11020664 - 12 Jan 2021
Cited by 6 | Viewed by 3985
Abstract
In the field of food packaging, the addition of exfoliated layered silicates in polymers has been established to improve the polymers’ gas barrier properties. Using these polymers as coatings to protect smart textiles from oxidation and corrosion while maintaining their textile properties should [...] Read more.
In the field of food packaging, the addition of exfoliated layered silicates in polymers has been established to improve the polymers’ gas barrier properties. Using these polymers as coatings to protect smart textiles from oxidation and corrosion while maintaining their textile properties should significantly extend their lifetime and promote their market penetration. The aim of this study was to print new polymer dispersions containing layered silicates to protect screen-printed conductive structures, and to test the resulting samples. For this, appropriate printing parameters were determined by statistical design of experiments. According to these results, conductive structures were printed and protected with the selected coating. The abrasion resistance and the continuity of the protective layer of the printed samples were then measured. A continuous protective coating of approximately 70–80 µm thickness was applied on a conductive structure. The printed samples showed a very high resistance to abrasion (unchanged by 85,000 abrasion cycles) while remaining flexible and presenting a lower water vapor permeability (<2.5 g/m² d) than the coatings commonly used in the textile field. Full article
(This article belongs to the Special Issue E-Textiles)
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13 pages, 9367 KiB  
Article
Development and Washing Reliability Testing of a Stretchable Circuit on Knit Fabric
by Paula Veske, Pieter Bauwens, Frederick Bossuyt, Tom Sterken and Jan Vanfleteren
Appl. Sci. 2020, 10(24), 9057; https://doi.org/10.3390/app10249057 - 18 Dec 2020
Cited by 6 | Viewed by 3209
Abstract
The smart textiles and wearable technology markets are expanding tirelessly, looking for efficient solutions to create long-lasting products. The research towards novel integration methods and increasing reliability of wearables and electronic textiles (e-textiles) is expanding. One obstacle to be tackled is the washability [...] Read more.
The smart textiles and wearable technology markets are expanding tirelessly, looking for efficient solutions to create long-lasting products. The research towards novel integration methods and increasing reliability of wearables and electronic textiles (e-textiles) is expanding. One obstacle to be tackled is the washability and the endurance to mechanical stresses in the washing machine. In this article, different layering of thermoplastic polyurethane (TPU) films and knit fabrics are used to integrate three different designs of stretchable copper-based meander tracks with printed circuit boards. The various combinations are washed according to the ISO 6330-2012 standard to analyze their endurance. Results suggest that one meander design withstands more washing cycles and indicate that the well-selected layer compositions increase the reliability. Higher stretchability together with greater durability is accomplished by adding an extra meander-shaped TPU film layer. Full article
(This article belongs to the Special Issue E-Textiles)
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