According to the raw materials, sweaters are not deformed. In winter, many people wear sweaters to keep warm. But I found that after the sweater was washed, it either shrunk or deformed after being exposed to the sun. Don't know any way to avoid these problems?

"What's the matter with you" column reporter: According to the expert committee of the Municipal Washing and Dyeing Industry Association, in winter, sweaters are supposed to be worn every day, and it is best to wash them once a week to two weeks. If you replace it after two days of wearing, you don't have to wash it too often to avoid affecting the warmth. To keep the original version of the sweater, wash according to the fiber properties of the sweater, and pay attention to the detergent and water temperature.

Before washing sweaters, it is first necessary to understand the fiber properties of sweaters. Sweater fabrics include wool sweaters, cashmere sweaters, wool blend sweaters and other types. Regular manufacturers are marked with fiber content instructions on clothing. Both wool and cashmere belong to protein fibers. These fibers are acid and alkali resistant, and sweaters are simply shrunk and deformed. Most of the blended sweaters are blended with wool and chemical fibers. The cost of such wool fabrics is low, and the degree of wear resistance is higher than that of pure wool sweaters.

When washing pure wool sweaters, it is best to go to a professional regular laundry shop to adopt the dry cleaning method. Assuming that pure wool sweaters are washed at home, try to use a detergent with a neutral pH value, which can avoid damage to the wool fibers. The water temperature should not be too high, stick to around 35 degrees Celsius. Soak the sweater for 25 minutes, then gently knead the sweater with your hands to squeeze the sweater's dirt out of the water. Rinse three times with clean water, and finally lay the sweater flat and dry on a wide hanger. When washing blended sweaters, the requirements for detergents are not too high, and you only need to wash according to the above method.

Do not wash sweaters in a washing machine, especially a domestic turbo type washing machine, and do not dry them in a tumble dryer