It should be noted that in order to achieve such an ideal effect, in the process of operating the tenter setting machine, it is necessary to reasonably formulate suitable setting process conditions. First, the setting temperature is generally determined by reference to the elastic shrinkage and thickness of the fabric. If the set temperature is too high, it will lead to a strong drop, the elasticity will decrease, and the fabric may be discolored. Conversely, if the temperature is too low, the fabric will be curled, the width is unstable, and the shrinkage rate is large.
The second is to properly control the speed of the stenter equipment. Normally, its operating speed depends mainly on the length of the setting zone and the setting temperature. If the speed is too fast, it will affect the effect of the setting, and it may also cause the fine wrinkles not to be disposed of during the dyeing and finishing process. Conversely, if the vehicle speed is slow and the temperature is high, the fabric may be yellowed and the elasticity may decrease.
In addition to the above two conditions, another process parameter that needs reasonable control is the overfeed of the stenter equipment. Generally, after determining the width of the fabric, it is also necessary to set an appropriate overfeed amount and tension.
It should be noted that during the operation of the stenter equipment, the choice of this parameter will affect the gram weight, elasticity and fabric surface wrinkles. For example, if the fabric tension is small, the overfeed is large, and the fabric surface is uneven, it is difficult to eliminate the fine wrinkles produced by the fabric during the dyeing process. Conversely, the tension is large and the amount of overfeed is small, which causes curling during heat setting.