▎ 摘　　要

NOVELTY - A multifunctional viscose fiber comprises viscose fiber, graphene, and nano silver. The nano silver is loaded in-situ on the graphene sheet. USE - Multifunctional viscose fiber (claimed). ADVANTAGE - The multifunctional viscose fiber has far-infrared temperature performance increased by more than 100%, ultraviolet protection factor increased by more than 70%, and antimicrobial performance of 99.9% (increased by 100% or more). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of versatile viscose fiber, which involves dispersing graphene in an aqueous solution to obtain a graphene dispersion, dissolving silver salt in graphene dispersion, adding a reducing agent for reduction reaction to obtain nano silver-loaded graphene solution, mixing the obtained solution with viscose, and spinning.