▎ 摘　　要

NOVELTY - Method for preparing graphene or graphene derivative modified liquid nano-dispersed dye, involves mixing disperse dye filter cake with graphene or graphene derivative comprising graphene oxide and reduced graphene oxide, and grinding to obtain the product. USE - The method is useful for preparing graphene or graphene derivative modified liquid nano-dispersed dye which is used in textile dyeing (all claimed), and dyeing polyester fabric by high-temperature and high-pressure one bath dyeing method. ADVANTAGE - The disperse dye improves the color property and functionality of the fabrics and avoids post-treatment processes after dyeing.