Nylon Monofilament: Nylon Monofilament (尼龙单丝)
A single extruded filament, usually PA6 or PA66, that is coiled and sewn to form nylon zipper teeth. Diameter, tensile strength, elongation and elasticity determine coil shape, interlocking and cycle life. The filament is drawn, oriented and heat set to develop strength and memory. Colour is added by masterbatch or dyeing. Incoming monofilament is tested for diameter, breaking force and consistency before coil forming.