The antibacterial mechanism of the antibacterial fiber is the physical antibacterial mode, and the antibacterial effective ingredients can fuse with the molecules of the bacterial outer cell membrane, causing the cell membrane damage, so that the bacteria can "disintegrate" by itself, thus killing the bacteria. The fiber does not contain copper, silver, zinc and other commonly used antibacterial ions, avoiding the enrichment of metal ions in the human body, and achieving healthy and safe antibacterial. The product still maintains stable and effective bacteriological inhibition after washing for 50 times.