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http://dx.doi.org/10.12772/TSE.2021.58.290

Preparation and Characteristics of Embroidered Circuit Board Using Conductive Yarns for e-Textile Applications  

Jeong, Cheon Hee (Korea Dyeing & Finishing Technology Institute(DYETEC))
Park, Hyun Ju (Korea Institute of Footwear & Leather Techhology)
Kang, Seon Gyeong (Department of Organic Material Science and Engineering, Pusan National University)
Kim, Ah Rong (Korea Dyeing & Finishing Technology Institute(DYETEC))
Park, Jong S. (School of Chemical Engineering, Pusan National University)
Publication Information
Textile Science and Engineering / v.58, no.6, 2021 , pp. 290-297 More about this Journal
Abstract
This study aims to evaluate the durability of a fiber-based module subjected to repeated stretch/release cyclic deformation. The fiber-based module connects an LED and a conductive yarn via the embroidery technique. For this purpose, different stitch pattern parameters, such as the stitch shape, length, and spacing, were applied, and the resistance changes were measured according to repeated tensile deformations. Among the three stitch patterns (i.e., straight, zigzag, and wavy), the zigzag pattern showed a resistance of 30.7 Ω/cm per unit embroidery length, and had the lowest resistance change even after repeated stretching recovery deformations. Based on the experimental results, a fiber-based module was manufactured by connecting an LED lamp to a zigzag pattern with a resistance of 11.9 Ω/cm and resistance change of approximately 18%. During elastic deformation, the LED was operated for 1200 cycles. The results indicate the potential applications in the production of smart clothing that requires elastic recovery.
Keywords
conductive yarn; embroidery; stretch; zigzag pattern; resistance; durability to cyclic deformation;
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