Stretching machine cotton knit elastic brazing frame shaping operation points
In the rolling groove of the tenter setting machine, the soft finishing can further satisfy the customer's requirements on the cloth, and make it not easy to be scratched on the guide wheel. The tenter setting makes the fabric cloth surface flat and stable, and can eliminate the dyeing and finishing process. Wrinkles and creases formed during the process, and at the same time, the molding process conditions must be strictly controlled during the setting.
First of all, the setting temperature of the tenter setting machine needs to be determined according to the elastic shrinkage rate and the thickness of the fabric. If the temperature is too high, the strength is lowered, the elasticity is lowered, and the fabric is discolored. On the contrary, if the setting temperature is too low, the fabric is easy to be curled, the width is unstable, and the shrinkage rate is large.
Secondly, the speed of the stentering machine is generally determined according to the length of the shaping zone and the setting temperature. The speed of the vehicle is too fast to set the shape, and the fine wrinkles are not easy to solve during the dyeing and finishing process. The speed is slow, especially under high temperature conditions. Yellow, the elasticity drops.
Finally, the overfeed parameters of the stenter should be adjusted reasonably. After determining the width of the fabric, select the appropriate overfeed and tension, which affects the weight, elasticity and fabric of the fabric, such as fabric tension. Small, super-feeding, uneven cloth surface, it is difficult to eliminate the fine wrinkles produced by the fabric during the dyeing process, the tension is large, and the super-feeding amount is small, which will cause curling when heat setting.