Muyu stone multifunctional composite fiber and preparation method thereof

The invention provides a Muyu-stone multifunctional composite fiber and a preparation method thereof, and relates to the field of functional fiber materials.The Muyu-stone, stone needle and medical stone are subjected to cleaning, opening treatment and grinding respectively, then the Muyu-stone, the stone needle and the medical stone and chemical fiber polymer master batches are blended, melt-spun and used as a core layer base body on line, a coaxial wet spinning die head is introduced, and coaxial wet spinning is conducted; a coating layer solution is a mixed spinning solution of viscose, limonite, stone needle, medical stone, a coupling agent and a surfactant; and maintaining and drying the prepared fiber to obtain the limonite multifunctional composite fiber. The preparation method has the beneficial effects that by introducing the chemical fiber enhanced functional body and coating the viscose functional body on the outer layer, the high mechanical stability function of the chemical fiber and the high com