How to use biological enzymes to remove the silicone spots on the cotton knitted fabric?

1. Causes and treatment process of silicon spots

In the pre-treatment and dyeing process of cotton knitted fabric, some additives can be added to remove impurities in the fiber and improve the vividness of cotton fabric, but the hand feels hard after dyeing. In order to improve the hand feel and wearability of cotton knitted fabric, the last process With the addition of silicone softener, there are many small black spots on the fabric surface, that is, silicon spots. Soaping, hot washing can not be removed, after a long time of exploration, we finally choose biological enzyme treatment to remove the silicon spots.

2. The principle of biological enzyme treatment

(Choose the right amount of cellulase concentration, temperature, time, model,) Use the bioactive cellulase of biological enzymes, which has a biodegradation effect, which can make a 1.4 glucoside bond in the cellulose fiber molecule It is hydrolyzed into soluble oligosaccharides or glucose in a short time. Because the molecular size of biological enzymes is large and it is not easy to penetrate into the fiber, the hydrolysis will only limit the progress of the fiber surface and weaken the bond between the small hair on the fiber surface and the main fiber. The force, and then through the solution, the machine's running process, is also the mechanical friction between the fabric and the fabric, and the fabric and the inner wall of the machine. These silicon spots and the small hairs on the surface of the fabric come off together, and the silicon spots are removed after washing. In addition, the surface structure of the fabric is clearer, which also plays a role in finishing the fabric.

3. Enzyme treatment process

Process flow: the grey cloth enters the tank, hot washing, cold washing, pH adjustment, enzyme treatment, hot washing, dehydration, drying, cloth inspection, calendering

Dyeing agent and process prescription biological enzyme Xg/L, buffer lg/L, softener 3lg/L, PH-4.5-5.5 bath ratio 1:8-12, enzyme treatment temperature 55-60℃, after 60 minutes Heat up to 80°C, keep it warm for 15 minutes; soft; temperature: 40°C*20 minutes.