Cashmere fiber has poor electrical resistance and conductivity. When clothes are worn, the fibers rub against each other, which leads to the accumulation of charges in the fibers and the electrostatic phenomenon. Fibers with high dielectric constant are positively charged, and vice versa. For example, chemical fibers rub cashmere, chemical fibers are negatively charged and cashmere fibers are positively charged. Fibers with different charges attract each other, which is easy to cause fabric pilling, especially when the weather is dry.

In addition, the price of cashmere has risen rapidly in recent years, and cashmere processing has developed rapidly. Attracted by considerable profits, cashmere processing enterprises all over the world have launched one after another. However, due to the lack of good equipment, environment and quality assurance system, some cashmere processing enterprises have damaged a lot of fibers during processing, and the fiber length has decreased, resulting in short fibers that are harmful to yarn quality and wearability, which greatly reduces the grade of products. After wearing cashmere sweaters, cashmere pilling is serious.

Cashmere should pay attention to the following points in maintenance and collection.

1, cashmere products should be kept clean when worn. Cashmere underwear should always be folded gently to remove dust. Cashmere coat can be brushed gently along the direction of wool head with soft wool electrostatic brush, which can remove dust, prevent the lurking and destruction of moths and make wool supple. In addition, cashmere products stained with stains should be washed in time.

2. When cashmere products need to be stored in season, they must be washed, ironed and dried before storage, which can reduce the conditions and scope of mold and moth activities, and can also kill insects and sterilize.

3. When cashmere products are stored, underwear can be folded, sealed with plastic bags and placed flat in the wardrobe. The coat should be put in a plastic bag and hung in the closet.

4. Stored cashmere products should be protected from light to prevent fading. They should be ventilated, sheltered, dusted and dehumidified, and should not be exposed to the sun. If it is sun-dried, let it dry thoroughly before putting it in the wardrobe. At the same time, mildew-proof and moth-proof pieces are placed around the wardrobe to prevent cashmere products from being affected with moisture, mildew and insects.

5. Washing method. Because the surface of cashmere fiber is composed of many scales, once cashmere products are stirred and washed by washing machine, they will be felted and their excellent properties will be destroyed. Therefore, cashmere products must not be washed by washing machine, and it is better to dry-clean or hand-wash. The method is as follows:

When the cashmere products are slightly stained, first pour the neutral detergent (shampoo, meal washing, cashmere sweater special detergent) into warm water at about 30℃, then put it into the clothes and pat it gently with your hands. If cashmere products are stained with dyes, they should be sent to dry cleaners for special treatment and washing.

Then wash it several times in warm water at about 40℃ until it is clean. Then add a little vinegar or softener to the clean water. It is best to put the washed cashmere products into a cloth bag and put them in a washing machine for dehydration 1-2 minutes.

Finally, the cashmere products are smoothed and ironed with a steam iron at 120℃- 140℃. Iron can't directly contact cashmere products. Cashmere products can be flattened and dried after shaping.