Heat setting refers to the use of heat to eliminate the internal stress generated by the fabric fibers during the stretching process, causing a certain degree of relaxation of the macromolecules and fixing the shape of the woven fibers.
significance:
1. Size setting: The dimensional thermal stability is improved and the shrinkage rate is decreased.
2. Flattening shape: eliminate wrinkles and improve wrinkle resistance.
3. Improve the performance of the performance: the elasticity, feel and hair ball phenomenon is improved.
4. Dyeing performance changes.
The purpose of heat setting:
1. Eliminate the internal stress generated by the fiber during the stretching process, causing a certain degree of relaxation of the macromolecule and improving the shape stability of the fiber.
2. improve the physical and mechanical properties of the fiber, such as improving the crystallinity, elasticity, knot strength, wear resistance of the fiber, as well as fixed curl or fixed twist
3. remove the moisture that the fiber brings in the process of stretching and oiling, so that the fiber meets the moisture requirement required by the finished product, and at the same time, it can avoid the possibility that the fiber turns yellow due to the long-term storage of the oil.
4. improve the dyeing properties of the fiber