Pilling is a characteristic of wool products. In the process of wearing and using wool fabric, the short fibers protruding from the fabric surface are easy to entangle into balls, which affects the appearance and causes felting, especially for high-grade products, which will aggravate this trend. Pilling is related to raw material properties, spinning and dyeing process, knitting structure and wearing mode. The influence of raw materials, spinning and dyeing on pilling is very complicated, and its mechanism is still under discussion.

This has a negative impact on the style and quality of wool products, so experts advise consumers:

1. When knitting fine wool (cashmere type), mercerized wool and Tencel series wool, the knitting density should be appropriately increased and the pattern structure should be less.

When wearing a sweater, the clothes should be smooth inside and outside.

3. Dismantle and wash frequently. Generally compiled once every 2-3 years. Use neutral detergent or soap powder when washing. When the water temperature is below 50℃, don't rub it, but dry it evenly.

4. If you have special anti-pilling needs, it is recommended to buy blended and woolen pure wool.

■ Anti-pilling method for washing sweaters:

(1) When washing, put the inside of the sweater outward to reduce the friction on the surface of the sweater, which can prevent the sweater from pilling.

Washing sweaters with shampoo can make them supple and natural.