Flame Retardant antibacterial polyester filament to the Company's production of phosphorus-based flame retardant polyester chips as raw materials in the melt spinning process, through special processing of nanoscale silver antimicrobial agent is dispersed into the melt processing. The product is in addition to a permanent flame retardant properties outside also have some antibacterial function, after the bacterial nano-silver fibers in vivo binding of the enzyme protein loss of activity, thus inhibiting the growth of bacteria in again. Staphylococcus aureus inhibition rate of 99.9%, of the bacteriostatic rate of 99.9%. The use of phosphorus-based flame retardant, does not produce toxic gases when burned halogen; can effectively reduce the droplet, security is good; the use of inorganic antibacterial materials, safe non-toxic, long-lasting antibacterial effect; the use of antimicrobial active ingredient of sustained-release technology ensures a broad spectrum antimicrobial and long-acting antibiotic, resistant to washing; can effectively kill Staphylococcus aureus, Escherichia coli, Aspergillus niger, tuberculosis and other bacteria and fungi, effective against infection with mildew