Polyamide fiber is commonly known as nylon, and nylon is the trade name of polyamide fiber. Its basic components are aliphatic polyamides connected by amide bonds – [NHCO] -.
Nylon has high strength, wear resistance, and good resilience. It can be spun pure or blended into various clothing and knitwear. The main varieties are nylon 6 and nylon 66, and their physical properties are similar.
Nylon high-strength filament sewing thread refers to high-strength, coarse-denier polyester industrial filament sewing thread, which uses high-viscosity polymers (relative viscosity>5), and the melt-extruded fibers are cooled by water. And multi-stage high-multiple stretching, steam injection, low-frequency vibration heat treatment after stretching and other special processes can be used to obtain high-strength nylon above 8.8cN/dtex.
Nylon high-strength filament sewing thread is twisted by continuous polyester high-strength low-elongation filaments, with a temperature resistance of 130 degrees, large elongation, good elasticity, and its tensile length at the moment of breaking is three times greater than that of cotton thread of the same specification. Nylon high-strength filament sewing thread is used for sewing chemical fiber, woolen cloth, leather and stretch clothing.
What Are The Characteristics Of Nylon High-Strength Filament Sewing Thread?
Nylon high-strength filament sewing thread has a certain tensile force, strong tensile force, gloss, high temperature resistance, high speed, low elongation, no elasticity, smooth, no more joints, good color fastness, and is a sewing thread that meets international environmental protection requirements. Nylon high-strength filament sewing thread is mainly suitable for leather sewing, such as: footwear, bag industry, sofa industry, etc.
Nylon high-strength filament can be wound into loose cone yarn, which has the characteristics of high strength, low elongation, high modulus, and high dry heat shrinkage. Because the high-strength filament product has excellent properties such as high breaking strength, high elastic modulus, low elongation, and good impact resistance, it has a trend of gradually replacing ordinary standard polyester industrial yarn in tires and mechanical rubber products.
Conclusion
Nylon sewing thread products are non-toxic, lightweight, have excellent mechanical strength, wear resistance and good corrosion resistance, so they are widely used to replace copper and other metals in the manufacture of bearings, gears, pump blades and other parts in the machinery, chemical, instrumentation, automobile and other industries.