Sewing thread is the thread needed for knitted clothing products. According to the raw materials, sewing thread can be divided into three categories: natural fiber sewing thread, synthetic fiber sewing thread and mixed sewing thread. With the development of polyester industry, more and more pure polyester fibers are used as raw materials for sewing thread.
Polyester fiber is a kind of synthetic fiber with excellent quality. The sewing thread made of polyester fiber has high strength, ranking second only to nylon thread in all kinds of sewing threads, and will not reduce the strength in wet state. Its shrinkage rate is very small, and the shrinkage is less than 1% after proper setting. Therefore, the stitching can always keep flat and beautiful without shrinkage. Its wear resistance is second only to that of nylon, and its moisture regain rate is low. It has good high temperature resistance, low temperature resistance, light resistance and water resistance. Therefore, polyester thread is widely used. In many occasions, it has replaced cotton sewing thread.
Polyester thread is widely used in cotton fabric, chemical fiber fabric and blended fabric. It can also be used to sew knitted outerwear. The special polyester thread is also an excellent thread in shoe and hat leather industry.
