▎ 摘　　要

NOVELTY - Preparing reduced grained graphene conductive elastic composite yarn (i) cleaning fiber roving, roving fiber in a dispersion aqueous solution of graphene oxide, dipping for 10-30 minutes, to obtain graphene oxide/fiber roving,(ii) using graphene oxide/fiber roving yarn and the elastic filaments and blending to obtain blended yarn, (iii) carrying out reducing agent oxidation treatment, cleaning, drying to obtain the reduction-oxidation graphene conductive elastic composite yarn. USE - The method is useful for preparing reduced grained graphene conductive elastic composite yarn (claimed). ADVANTAGE - The method is simple, economical and obtains composite yarn with excellent performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for reduced grained graphene conductive elastic composite yarn which is prepared by above mentioned method.