A large‐scalable spraying‐spinning process for multifunctional electronic yarns

Abstract Electronic fibers/textiles have great potential for applications in smart wearables due to their excellent flexibility, air permeability, and wearing comfort. However, it is still challenging produce reliable electronic textiles at low cost a large scale. Herein, we report spraying‐spinning process fabricating yarns with stability durability. Cotton sliver, which the raw material spinning conventional cotton yarns, was spray coated carbon nanotubes (CNTs) spun on an Ag@nylon yarn, forming sheath‐core structured CNT@cotton‐Ag@nylon yarn (CCAY). The continuous, large‐scalable, applicable other fiber materials compatible traditional textile processes. as‐prepared CCAY showed superior mechanical durability, washability, conductivity typical surface yarns. It can be easily processed or integrated into through weaving, knitting, sewing, embroidering. We systematically studied electromechanical, electro‐thermal, photothermal performance of based yarns/fabrics, demonstrating its versatile textiles. In addition, further equipped features, such as electro‐thermochromic functions, pH sensing flame resistant abilities. Considering large‐scalability, versatility, low‐cost, foresee that this may play important roles development practical fibers/textiles.