Stretch Yarns By Heat Setting:
Using the thermoplastic property of the synthetic fiber, they are shaped into coils, crimps, curls, or waves.
- Coils can be achieved in a number of ways, but the most popular method is placing a false twist – essentially, a high twist is placed into the fiber, which is heat set with steam and cooled quickly. Untwisting it causes the fiber to coil and act like a spring. This is used for tight fitting products e.g. tights, stockings, ski pants and swimsuits.
- Crimps are produced in a number of ways. One method entails using a stuffer box: the filaments are stuffed tightly into a heated chamber (the stuffer box), which changes the shape of the yarn into a random zigzag pattern or uses two cogged wheels opposite each other to crimp the yarn after extrusion.
- Coils can be achieved in a number of ways, but the most popular method is placing a false twist – essentially, a high twist is placed into the fiber, which is heat set with steam and cooled quickly. Untwisting it causes the fiber to coil and act like a spring. This is used for tight fitting products e.g. tights, stockings, ski pants and swimsuits.
- Crimps are produced in a number of ways. One method entails using a stuffer box: the filaments are stuffed tightly into a heated chamber (the stuffer box), which changes the shape of the yarn into a random zigzag pattern or uses two cogged wheels opposite each other to crimp the yarn after extrusion.
JINJIANG XINGLILAI YARNS CO., LTD.
Our company is specialized in producing all kinds of nylon and polyester fancy yarns,
such as feather yarns,tape yarns,toothbrush yarns,lantern yarns,ladder yarns,etc.
Trustworthy brand,Professional production of high quality fancy yarn.