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<p>Electronic textiles (e-textiles) face challenges in maintaining fabric properties and achieving high electrical conductivity with screen printing and particle-based inkjet printing. While particle-free reactive inks enable high-resolution patterning with sufficient electrical conductivity, their application on cellulose-based fibers is hindered by negatively charged surfaces. This study introduces inkjet-printed e-textiles using reactive silver ink and carbon nanotube ink on poly-L-lysine-coated cotton fabric. Carbon nanotubes establish a conductive network that promotes silver ion reduction, yielding densely packed nanoparticles with enhanced conductivity (1.25 × 10⁵ S m⁻¹). The resulting composite functions as a resistive tactile sensor with high sensitivity (6.02 kPa⁻¹) due to the hierarchical structure of cotton fabric. In addition, the inherent heat resistance of cotton facilitates its high-temperature resistance during heating. In this work, the fabricated e-textiles maintain performance through bending, ironing, and washing, inferring our printing technique as a promising strategy for wearable devices.</p>

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Washable heat-resistant and inkjet-printed devices on cotton fabric for wearable applications

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年9月29日

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  • Kyubin Bae,
  • Bowoong Heo,
  • Kyuhyun Hwang,
  • Eunhwan Jo,
  • Yunsung Kang,
  • Soonjae Pyo,
  • Jongbaeg Kim

摘要

Electronic textiles (e-textiles) face challenges in maintaining fabric properties and achieving high electrical conductivity with screen printing and particle-based inkjet printing. While particle-free reactive inks enable high-resolution patterning with sufficient electrical conductivity, their application on cellulose-based fibers is hindered by negatively charged surfaces. This study introduces inkjet-printed e-textiles using reactive silver ink and carbon nanotube ink on poly-L-lysine-coated cotton fabric. Carbon nanotubes establish a conductive network that promotes silver ion reduction, yielding densely packed nanoparticles with enhanced conductivity (1.25 × 10⁵ S m⁻¹). The resulting composite functions as a resistive tactile sensor with high sensitivity (6.02 kPa⁻¹) due to the hierarchical structure of cotton fabric. In addition, the inherent heat resistance of cotton facilitates its high-temperature resistance during heating. In this work, the fabricated e-textiles maintain performance through bending, ironing, and washing, inferring our printing technique as a promising strategy for wearable devices.