Preparation method of nano silver chloride-loaded marine fibers

The invention discloses a preparation method of nano silver chloride-loaded marine fibers. The method comprises the following steps of preparing a calcium alginate/nano silver chloride sol spinning solution from a marine resource sodium alginate as a raw material through an in-situ process, controlling the growth of silver chloride crystal nucleus under the assistance of polyvinylpyrrolidone K90 with the average molecular weight of more than or equal to 120,000, performing spinning in a zinc and calcium non-chloride coagulating bath by using wet spinning equipment to obtain fibers, and ensuring that silver chloride is in a nanoscale size in the fiber preparation process, so as to obtain the nano silver chloride high-flame-retardant and strongly antibacterial marine fibers. The fibers havethe limit oxygen index of larger than 60% and the bacteriostasis rate of larger than 99%, and are particularly suitable for large-scale production of decorative materials and home textiles with high fireproof and epidemic pre