▎ 摘　　要

NOVELTY - Producing industrial fibers coated with graphene oxide on-line comprises (i) mixing doped graphene oxide, dispersant and spinning oil agent in a mass ratio of 5-40:0.2-1:94.8-59 at room temperature of greater than or equal to 25 degrees C, then mechanically stirring and performing ultrasonic dispersing and mixing to obtain mixed coating liquid, (ii) adding the mixed coating solution obtained in step (i) at the oiling position of the spinning oil before the industrial fiber spun yarn enters the draft roller and attaching a certain amount of doped graphene oxide to the fiber surface while the spinning oil is oiled, and (iii) coating primary filament with doped graphene oxide is obtained online from step (ii) and then carrying out continuous multi-stage drafting and high-temperature setting to obtain industrial fibers with multiple composite functions, where the total draw ratio of multi-stage drawing is 2-6 times, and the drawing and setting temperature is 80-250 degrees C. USE - The method is useful for producing industrial fibers coated with graphene oxide on-line. ADVANTAGE - The method utilizes a mixed coating liquid containing doped graphene oxide, which produces industrial fibers which has excellent antistatic, antibacterial, anti-ultraviolet aging and flame retardant properties; and is suitable for processing of industrial composite textile materials e.g. dipping and laminating.