The present invention discloses a colored polylactic acid melt-spun fiber and a preparation method thereof. The method comprises: uniformly mixing curcumin powder and polylactic acid pellets at room temperature so that the curcumin powder fully adheres to the polylactic acid pellets, followed by drying; adding the obtained mixture into a twin-screw extruder to prepare color masterbatch; uniformly mixing the color masterbatch and polylactic acid pellets in a certain proportion at room temperature, drying, spinning with a melt spinning machine, and performing drawing treatment to obtain the colored polylactic acid melt-spun fiber. The color masterbatch in the present invention has strong tinting strength, and the prepared colored polylactic acid melt-spun fiber is not easy to fade, with stable and bright color effect, good mechanical properties, and can realize stable textile processing.
Country Code: CN
Application Number: CN202410402580.0
