▎ 摘　　要

NOVELTY - Preparing cooling fiber, comprises (a) mixing graphene material with a first fiber substrate and screw extruding to obtain functional masterbatch containing graphene material; (b) mixing the jade powder with the second fibrous substrate and screw extruding to obtain functional masterbatch containing jade powder; and (c) mixing functional masterbatch containing graphene material, functional masterbatch containing jade powder and third fibrous substrate as a mixture, blending, melting and spinning. USE - The cooling fiber is useful for preparing yarn, fabric and garments (claimed). ADVANTAGE - The cooling fiber can improve the feeling of coolness, under the same coolness requirements, can reduce the amount of jade powder added, improves fiber comfort due to excessive addition of jade powder, powder loss and odor issues.