The invention belongs to polyester fiber technology, and specifically relates to a preparation method of modified polyester fibers and knitted products containing the same. The preparation method: Mix polyester chips with modified antibacterial agent uniformly, perform melt blending, extrusion and granulation via a twin-screw extruder to prepare masterbatch; extrude the masterbatch through a melt spinning machine to form fiber filaments, followed by cooling, drawing and heat setting to obtain polyester fibers; pretreat the fibers with 0.8‑1 mol/L sodium hydroxide solution, immerse in functional dopamine solution for 20‑24 h ultrasonic treatment, then rinse with deionized water and dry to finish modification. The modified polyester fibers possess outstanding mechanical strength, long-lasting antibacterial property, flame retardancy and waterproof performance to meet market demands.
Country Code: CN
Application Number: CN202410998987.4
