Method of manufacturing a dental cord

A method of manufacturing a dental cord, the method comprising:

• producing a spinning solution by dissolving a fiber-moldable hydrophobic polymer material in a solvent;
• spinning the spinning solution to obtain a polymer nanofiber web composed of nanofibers and including three-dimensional micropores;
• laminating the polymer nanofiber web to obtain a polymer membrane;
• slitting the polymer membrane to obtain a nanofiber tape yarn;
• hydrophilic-treating the nanofiber tape yarn to obtain a hydrophilic-treated nanofiber tape yarn;
• plying and twisting the hydrophilic-treated nanofiber tape yarn with a covered yarn to obtain a nanofiber multiple yarn;
• thermally stretching the nanofiber multiple yarn between a glass transition temperature (Tg) and a melting temperature (Tm) of the fiber-moldable hydrophobic polymer material;
• and
• impregnating the nanofiber multiple yarn with a hemostatic agent.