At present, hot-melt yarn is widely used in flying woven shoe uppers, curtain screens, carbon fiber cloth surface setting, chenille yarn, Bondi thread, high-end suit lining and other fields. It is a high-tech product with huge market prospects.
Some fabrics or yarns need to be glued, especially for close-fitting clothes. If you use sticky glue products, it is easy to volatilize, and the volatilized odor is often harmful to the human body; after a long time or repeated washing, it will gradually lose its function. Therefore, people have developed low-melting nylon filaments. After melting at high temperature, it produces good viscosity. After cooling, it sticks to the fabric. Due to the stability of the molecules, no harmful substances will be volatilized. The hot-melt yarn and other fibers are woven into fabrics, and then set at high temperature in a dry or moist heat state to bond the fabrics together.
Flyknit upper is one of the most important application fields of hot melt yarn. First of all, in the use of raw materials, polyester and nylon fibers are more cost-effective than traditional leather, and the production process is simple, eliminating the need for leather tanning, finishing and other processes, reducing waste and wastewater pollution; The cutting, sewing and other processes of traditional shoemaking are omitted, and the waste of shoe uppers is reduced; finally, in the process of setting, due to the low melting point of the hot-melt yarn, the setting temperature is only about 180°C, compared with the traditional high temperature and high pressure. It also saves electrical and other costs. Hot melt yarn is also known as environmentally friendly glue. For example, the brand name of Hyosung's nylon hot-melt yarn is "Glurex", which means glue. Since Nike launched the Nike Flyknit Racer, a shoe with Flykint technology, in 2012, well-known domestic and foreign manufacturers such as Adidas, Anta and Li Ning have followed suit, making flying knitting an alternative to cloth, leather and leather. An important vamp material. Compared with traditional shoemaking, this product implements the principle of low carbon and energy saving in the use of raw materials, the manufacture and molding of uppers and other processes. Therefore, the birth of flying woven upper is revolutionary and an important part of low-carbon life.
