| 摘要 |
PURPOSE: To obtain the subject fibers having durable flame retardancy and water repellency, suitable as a material for land nets, by imparting polyester fibers with a mixed composition comprising an amidophosphazene compound and a functional chemical such as a water repellent followed by heat treatment. CONSTITUTION: Polyester fibers or flame-retardant polyester fibers copolymerized or blended with a flame retardant is imparted with 0.5-5wt.%, based on the fibers, of a polymer of an amidophosphazene compound of the formula (m is 3-6), or a composition prepared by mixing >=5wt.% of the amidophosphazene compound with at least one kind of functional chemical selected from weathering agents, antioxidants, antifouling agents, antimicrobial agents, mildewproofing agents, antistatic agents and colorants on unit pt.wt. solid basis. The resultant fibers are heat-treated at >=100 deg.C (pref. >=150 deg.C) to obtain the objective flame- retardant polyester fibers passing the flame retardancy test (JIS L-1091) and having water repellency performance of 100 points in initial value and >=70 points after washing 10 times when the functional chemical is a water repellent. |
