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Hardy, D.A. 
ORCID: 0000-0002-6028-7555, Rahemtulla, Z., Satharasinghe, A. ORCID: 0000-0002-7124-8228, Shahidi, A. ORCID: 0000-0002-7780-3122, Oliveira, C. ORCID: 0000-0001-8143-3534, Anastasopoulos, I., Nashed, M.N., Kgatuke, M., Komolafe, A., Torah, R., Tudor, J., Hughes-Riley, T. ORCID: 0000-0001-8020-430X, Beeby, S. and Dias, T. ORCID: 0000-0002-3533-0398,
2020.
Wash testing of electronic yarn.
Materials, 13 (5): 1228.
ISSN 1996-1944
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Text
1305407_Hughes-Riley.pdf - Published version Download (7MB) | Preview |
Abstract
Electronically active yarn (E-yarn) pioneered by the Advanced Textiles Research Group of Nottingham Trent University contains a fine conductive copper wire soldered onto a package die, micro-electro-mechanical systems device or flexible circuit. The die or circuit is then held within a protective polymer packaging (micro-pod) and the ensemble is inserted into a textile sheath, forming a flexible yarn with electronic functionality such as sensing or illumination. It is vital to be able to wash E-yarns, so that the textiles into which they are incorporated can be treated as normal consumer products. The wash durability of E-yarns is summarized in this publication. Wash tests followed a modified version of BS EN ISO 6330:2012 procedure 4N. It was observed that E-yarns containing only a fine multi-strand copper wire survived 25 cycles of machine washing and line drying; and between 5 and 15 cycles of machine washing followed by tumble-drying. Four out of five temperature sensing E-yarns (crafted with thermistors) and single pairs of LEDs within E-yarns functioned correctly after 25 cycles of machine washing and line drying. E-yarns that required larger micro-pods (i.e., 4 mm diameter or 9 mm length) were less resilient to washing. Only one out of five acoustic sensing E-yarns (4 mm diameter micro-pod) operated correctly after 20 cycles of washing with either line drying or tumble-drying. Creating an E-yarn with an embedded flexible circuit populated with components also required a relatively large micro-pod (diameter 0.93 mm, length 9.23 mm). Only one embedded circuit functioned after 25 cycles of washing and line drying. The tests showed that E-yarns are suitable for inclusion in textiles that require washing, with some limitations when larger micro-pods were used. Reduction in the circuit’s size and therefore the size of the micro-pod, may increase wash resilience.
| Item Type: | Journal article | ||||||
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| Publication Title: | Materials | ||||||
| Creators: | Hardy, D.A., Rahemtulla, Z., Satharasinghe, A., Shahidi, A., Oliveira, C., Anastasopoulos, I., Nashed, M.N., Kgatuke, M., Komolafe, A., Torah, R., Tudor, J., Hughes-Riley, T., Beeby, S. and Dias, T. | ||||||
| Publisher: | MDPI AG | ||||||
| Date: | 2020 | ||||||
| Volume: | 13 | ||||||
| Number: | 5 | ||||||
| ISSN: | 1996-1944 | ||||||
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| Rights: | © 2020 MDPI (Basel, Switzerland). © This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. | ||||||
| Divisions: | Schools > School of Art and Design | ||||||
| Record created by: | Linda Sullivan | ||||||
| Date Added: | 23 Mar 2020 10:09 | ||||||
| Last Modified: | 08 Mar 2024 16:23 | ||||||
| URI: | https://irep.ntu.ac.uk/id/eprint/39434 |
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