ضد‌میکروبی کردن نخ پشم ایرانی به همراه بهبود ظرافت آن به‌وسیله به‌کارگیری کشش و ترکیبات نیترات نقره و بی‌سولفیت سدیم به‌صورت همزمان

tensile strength. Moreover, making wool fabrics antibacterial is a considerable task for protection of fabrics and consumers against microbial attack and growth. In this research nano-silver was synthesized using reduction of silver nitrate by sodium bisulfite along with increasing the fiber fineness using tensile. This process was successfully introduced Iranian coarse wool yarns with loading of nano-silver through in situ synthesis and consequently, suitable antibacterial properties along with some other improved properties such as yarn tenacity and improvement of yarn count were obtained. Subsequently, SEM and EDX analyses confirmed the nano-silver synthesis on the wool yarns and indicated the importance of test conditions on antibacterial properties of the fibers.