There are 6 major reasons for creases/chicken paw marks on knitted fabrics!

Dyeing creases on knitted fabrics/Causes:

1. The cooling speed is 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 deal with 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 dye vat;

4. Pay attention to the arrangement of the tank capacity. For fabrics that are prone to wrinkles, the tank capacity should not be too large, generally not exceeding 80%;

5. The temperature rise and fall should be controlled well, with a temperature rise/fall of 1-1.5. Above 80 degrees, cold water cannot be drained directly into the water. It can be washed with overflow water to slowly reduce the problem;

6. Increase the bath ratio to 1:15-1:20.

Solution

This is normal in overflow staining. If it is more serious:

Step one: Check whether your fabric is pre-shaped. Elastic fabrics with spandex like yours should be pre-shaped.

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 you need to pay attention to in future production. If it is not too serious, it can be solved by stretching and backsetting the finished product once. If it is more serious, 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. Dry it off within an hour, otherwise it will be easy to get sick.