(1) Before washing the sweater, remove the dust from the sweater and soak the sweater in cold water 10 ~ 20 minutes. After taking out, the sweater should be squeezed out, then gently rubbed in washing powder solution or soap sheet solution, and then rinsed with clear water. In order to ensure the color of wool, 2% acetic acid can be dripped into water (vinegar can also be eaten) to neutralize the remaining soap on the sweater. After washing, squeeze the water out of the sweater, stop, put it in a net bag, hang the sweater in a ventilated place to dry, and don't wring it out or expose it.

Washing sweaters (threads) with tea leaves can not only clean the dust on sweaters, but also make the wool not fade and prolong its service life.

The method of washing the sweater is: use a pot of boiling water, put in a proper amount of tea leaves, filter out the tea leaves after the tea leaves are soaked thoroughly and cooled, soak the sweater (thread) in tea for 15 minutes, then gently rub it for several times, then rinse it with clear water, squeeze out the water and shake it evenly, and the wool can be directly placed in the shade to dry; In order to prevent the sweater from deforming, put it in a net bag and hang it in the shade to dry.

③ If the sweater is not alkali-resistant, it should be washed with neutral enzyme-free detergent, and it is best to use special detergent for wool. If you use a washing machine, you should use a drum washing machine and choose a soft program. If you wash it by hand, it is best to rub it gently, not with a washboard. Sweaters should not be bleached with chlorine-containing bleaching solution, but with oxygen; Squeeze and wash, avoid wringing, squeeze out water, spread it evenly and dry it in the shade or fold it in the shade; Wet plastic surgery or semi-dry plastic surgery can remove wrinkles and avoid sun exposure; Softening agents should be used to maintain soft hand feel and antistatic properties. Dark colors generally fade easily and should be washed separately.