Slow evaporating solvent enabled permeation of viscous ink into textile. As a result, initial sheet resistance of printed lines was 0.06 Ω sq-1, and relative resistance increased only 70 times after stretching up to 450% due to the optimal morphology of textile bundles and conductive composite.
As a demonstration of their stretchable printable textile circuit, the team fabricated an electromyography (EMG) monitoring system on skin-tight compression garment to show a potential application as a biometric device.
This mechanically durable and simply printable composite material enabled the realization of a multichannel EMG monitoring compression garment.
"We anticipate that this stretchable conductive ink for textile can provide new design opportunities for wearable e-textile applications such as health monitoring garments and textile integrated sensors," the authors cocnlude their report.