1. Polyester-cotton sewing thread: It is blended with 65% polyester and 35% cotton. It has the advantages of polyester and cotton. It has high strength, wear resistance, heat resistance and good shrinkage rate. It is mainly used for cotton and polyester cotton. High-speed sewing of various types of clothing.



2. Core-spun sewing thread: The filament is the core, and it is made of natural fibers. The strength depends on the core thread, and the wear resistance and heat resistance depend on the outer yarn. It is mainly used for high-speed and firm garment sewing.



In recent years, with the further improvement of labor production efficiency and the widespread use of high-speed sewing machines, the application scope of core-spun threads has been continuously expanded. The reason is that due to the friction between the needle and the fabric during high-speed sewing, a lot of heat is generated on the needle; when the number of layers of fabric to be sewn increases (such as shirt collars, etc.), the temperature of the needle will rise sharply, especially when sewing When the speed is above 5000 stitches/min, the sewing needle will exceed 300°C, and the melting point of high-strength polyester filament is 255°C-260°C, so the polyester filament thread is easy to break.



The use of core-spun thread can avoid the above problems, because the polyester filament in the core-spun thread does not come into direct contact with the needle eye, and the surface fibers can quickly dissipate heat. High-strength polyester and cotton core-spun sewing thread is made of high-strength polyester filament wrapped with cotton-type polyester staple fiber or high-quality long-staple cotton.



This product not only has the high strength of polyester filament sewing thread, but also has the natural hairiness and feel of polyester staple fiber sewing thread or upper thread. , has broad development prospects.