The process of the stenter for knitted fabric should be determined based on three factors: temperature, time and tension. When the fabric is heat-set using an stenter for knitted fabric, the control of the temperature will determine its qualitative quality. Because after the heat setting, the wrinkles existing on the original surface of the fabric are eliminated, the surface flatness is improved, the dimensional stability of the fabric and other taking properties are closely related to the heat setting temperature.
It is necessary to reach a certain temperature before the setting, which requires heating. Therefore, the setting time is another important process condition for the heat setting of the stenter. After the fabric enters the heating zone, the time required for heat setting is roughly divided into heating time, heat penetration time, molecular adjustment time, and cooling time.
In general, the quality of the stenter for knitted fabric heat setting process is mainly reflected in the fabrics required for different factors such as performance, area, weight, thermal conductivity of the fiber and moisture content of the fabric during heating and heat penetration. The aspect of time control.
Since the tension applied to the surface of the fabric changes under certain conditions, it will result in a certain influence on the dimensional thermal stability, strength and elongation at break of the fabric. Especially in the stenter for knitted fabric heat setting process, the warp dimensional thermal stability increases with the increase of the warp overfeed during the setting, while the thermal stability of the weft dimension decreases with the increase of the stretch of the web. .