▎ 摘　　要

NOVELTY - Preparing ultraviolet discoloration fabric, comprises (i) preparing ultraviolet discoloration emulsion, (ia) stirring and mixing 10,12-pentacosadiynoic acid and nano-titanium dioxide powder, (ib) adding the product to the aqueous polyurethane, adding a coupling agent and an antioxidant after the stirring reaction, and continuing to stir, (ic) adding distilled water into the product obtained in step (ib), and stirring to obtain an ultraviolet discoloration emulsion, (ii) preparing porous fiber threads, using a melt spinning process, preparing nano-graphene oxide and polyester into ultra-fine porous fiber threads, and immersing in the ultraviolet color-changing emulsion, and (iii) preparing ultraviolet discoloration fabric, impregnating the ultra-fine porous fiber threads with the ultraviolet color-changing emulsion were spun by textile equipment to obtain the ultraviolet color-changing fabric. USE - The method is useful for preparing ultraviolet discoloration fabric. ADVANTAGE - The method has a longer service life, and the discoloration effect is not affected by operations e.g. cleaning and folding of the fabric.