▎ 摘　　要

NOVELTY - Volcanic rock warm-keeping fibers comprise 5-90 wt.% polyester masterbatch and 10-15 wt.% far infrared masterbatch, where the far infrared masterbatch is prepared by using 100 pts. wt. polyester granules, 50-60 pts. wt. infrared ceramic powder, 5-10 pts. wt. volcanic rock powder, 5-8 pts. wt. graphene oxide and 3-5 pts. wt. coupling agent. USE - The volcanic rock warm-keeping fibers are useful in producing warming sock (claimed). ADVANTAGE - The warm-keeping fibers have excellent warming effect and water washing resistance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for warming sock obtained by weaving blended yarn composed of the volcanic rock warm-keeping fibers. DESCRIPTION OF DRAWING(S) - The drawing shows a structural schematic diagram of the warming sock.