Current State of Conductive Yarns
Silver-coated conductive yarn resistivity has fallen to 0.1Ω/cm, enabling body temperature monitoring, heart rate sensing, and muscle electrostimulation. Costs have dropped from ¥4000/kg in 2020 to ¥1200/kg, entering mainstream sportswear brand procurement.
Phase Change Materials: Fabrics that Breathe
PCM technology encapsulates paraffin in 5-10μm microcapsules, absorbing or releasing heat in the body temperature range (33-37°C) to stabilize perceived temperature within ±2°C. Originally NASA technology for spacesuits, now widely licensed by Outlast to outdoor, sleep, and sportswear brands.