This study investigated the washability and durabilityof a textile-integrated dry surface electromyography (sEMG) electrode system based on layered MXene-based materials. Building on prior work using tannic acid pretreatment to improve MXene–textile adhesion, the electrodes were further developed with optimized cross-linking and reinforced deposition. The electrodes retained structural and electrical performance after ten laundering cycles. The results show improvements over earlier textile-integrated electrodes, ensuring consistent sEMG detection through repeated use. Enhanced washability supports applicationin long-term rehabilitation, athletic monitoring, and human-machine interfaces.