There are big reasons why creases/chicken paw marks appear on knitted fabrics!
Causes of staining and creases on knitted fabrics:
1. Cooling down too fast
2. The cloth and the nozzle are not matched well, and the vehicle speed and flow control are not suitable!
3. The best way to determine the creases of heavy fabrics and fully lined elastic fabrics is to preliminarily determine them before dyeing, otherwise it will not be solved in a good dyeing vat;
4. Pay attention to the arrangement of the tank capacity. For fabrics that are easily wrinkled, the tank capacity should not be too large, generally not exceeding 80%;
5. Good temperature control, 1-1.5 heating/cooling. Above 80 degrees, it cannot be drained directly into cold water. It can be washed with overflow water to gradually reduce the problem;
6. Increase the bath ratio to 1:15-1:20.
Solution
This is normal in overflow coloring. If it is more severe:
Step 1: Check whether your fabric is pre-shaped. It is best to pre-shape stretch fabrics like yours that have spandex.
Step 2: Check whether your operation is reasonable and whether the dye vat is not running smoothly.
Step 3: See if your heating and cooling rate is too fast. This is something to pay attention to in future reproduction. If it is not too severe, it can be solved by stretching and backsetting the finished product once. If it is more severe, it is recommended to wash it in the tank at 95 degrees for 10 minutes, and then slowly cool it to about 50 degrees and drain it out. cylinder can basically solve this problem. One more thing to say is that when dehydrating, it is enough to remove the cloth until it is 70% dry. If it is too dry, it will easily cause wrinkles. Many of his chicken paw marks are caused by leaving it for too long after dehydration. The dry cloth should be dried for 3 months after dehydration. Get rid of it within hours, otherwise it will be easy to start.
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Extendedreading:https://www.yingjietex.com/product/polyester-UV-CUT-Fabric.html
