▎ 摘　　要

NOVELTY - Producing functional fiber comprises (i) adding graphene micro sheet and calcium hydroxide into water and mixing to obtain suspension; (ii) introducing carbon dioxide into the suspension for gas-solid reaction, adjusting the pH of the reaction to 7, stopping the carbon dioxide gas, filtering and washing, obtaining submicron calcium carbonate to isolate the dispersed graphene nano-chip filter cake, and drying to obtain graphene nano-chip; (iii) vacuum drying the base resin to remove water and mixing with graphene nano-chip, extruding and granulating by a twin-screw extruder, and obtaining graphene-containing masterbatch; and (iv) mixing the graphene-containing masterbatch with the fiber resin slice, vacuum drying in an oven at 100 degrees C for 12 hours, melting to obtain spinning solution, and spinning the spinning solution to obtain functional fiber. USE - The method is useful for producing functional fiber. ADVANTAGE - The product has good spinnability, antibacterial and ultra-violet protection function.