The heat setting stenter is a process in the production of chemical fiber during operation, and can obtain stress relaxation of the fiber after stretching, which is beneficial to improve the crystallinity and various properties of the fiber to some extent. Stability, which can reduce the shrinkage rate of wastewater when it is operated by keeping the fiber under heat for a certain period of time, so that the macromolecules constituting the fiber can obtain sufficient activity energy and adjust the "position" of the segment. To minimize the energy of the fiber structure. The setting machine is a device that performs the above processes. Stereotypes need to pay attention to many aspects.
Three elements of heat setting stenter process
The temperature of the heat setting stenter is the most important factor affecting the heat setting quality. When the fabric is heat-set, the original wrinkles are eliminated, the surface flatness is improved, and the fabric is thermally stable. And other taking performance are closely related to the heat setting temperature.
Heat setting stenter time
The setting time of the heat setting stenter is another main process condition for heat setting. After the fabric enters the heating zone during operation, the time required for heat setting can be divided into the following parts.
1. Heating time: The time required to heat the surface of the fabric to the setting temperature after the fabric enters the heating zone.
2. Heat penetration time: After the surface of the fabric reaches its setting temperature, the fibers in the inner and outer portions of the fabric have the same heat penetration time required for the same setting temperature.
3. Molecular adjustment time: The time required for the molecules in the fiber to be adjusted according to the setting conditions after the fabric reaches the setting temperature.