Non-Woven Needle Punched Material with Silver Nanoparticles from Natural Silk Fiber Waste

Non-woven needle-punched material with silver nanoparticles was obtained from the waste of natural silk cocooning process. Silver nanoparticles were synthesized by chemical reduction from an ammonia solution of silver nitrate. It is shown that the treatment of silk material with a solution of 1-butyl-3-methylimidazolium chloride affects the amorphous-crystalline state of the fiber, its sorption properties and the resistance of silver nanoparticles on the fiber to wet treatments.