1. When washing a sweater, turn it over first, with the reverse side facing out; 2. To wash sweater, use sweater detergent, sweater detergent is softer, if there is no special sweater detergent, you can use household shampoo to wash; 　　3. Add the right amount of water to the basin, the water temperature is controlled at about 30 degrees, the water temperature should not be too hot, the water is too hot will make the sweater shrink. Dissolve the washing liquid into the warm water and soak the sweater in the water for about 30 minutes. 4; 4. gently rub the collar and cuffs of the sweater, not dirty places can be placed in the heart of two hands rub, do not scrub hard, will make the sweater pilling deformation; 5. Wash the sweater with water and shabu-shabu the sweater clean. You can put two drops of vinegar in the water, which can make the sweater shiny and beautiful; 6. After washing, gently wring a few times, do not force wring dry, as long as the Ning excess water can be, and then put the sweater in the net pocket hanging control dry water, which can prevent the sweater deformation. 7. After controlling the moisture, find a clean towel and lay it on a flat place, lay the sweater on the towel and let it dry naturally, so that it will be fluffy and not deformed after it dries.