| 摘要 |
<p>An antibacterial polyamide fiber which comprises a polyamide resin containing 0.1 to 5.0 mass % of fine zinc oxide particles and exhibits a color difference caused by the treatment with an alkaline solution of 2.5 or less; and a method for producing the antibacterial polyamide fiber which comprises adjusting the moisture content of a polyamide resin chip to 0.05 to 2.0 mass %, followed by melt spinning. Preferably, the antibacterial polyamide fiber has a bacteriostatic activity after 50 washings of 2.2 or more, which fiber can be produced by subjecting the polyamide resin to melt spinning and solidifying the resin at a position 400 mm or less from the face of a spinning nozzle.</p> |
