Conductive multi-functional fiber with sheath-core structure and preparation method of conductive multi-functional fiber

The invention discloses a preparation method of a conductive multi-functional fiber with a sheath-core structure. The conductive multi-functional fiber with the sheath-core structure comprises a sheath layer and a core layer. The preparation method comprises the following steps: preparing a sheath layer spinning solution; preparing a core layer spinning solution; preparing the sheath-core structure from the sheath layer spinning solution and the core layer spinning solution through a coaxial wet spinning process to obtain a nascent fiber; carrying out skin layer coagulating bath on the nascentfiber and then carrying out core layer coagulating bath; and then carrying out plasticizing drafting and air drafting to obtain the conductive multi-functional fiber with the sheath-core structure. The fiber prepared by the method has excellent conductivity and meanwhile has the functions of bacterium resistance, bacteriostasis, electromagnetic shielding, ultraviolet and far infrared prevention and the like. 本发明公开了一种具有皮芯