1、It is best to use special detergent to wash sweaters, but also can not use hot water, to use 20 ℃ - 25 ℃ warm water soak 30 minutes after hand washing, and then softener rinse a bit, with a net pocket to hang up, wait until not dripping water and then hang up with hangers. 2, sweater is not alkali-resistant, if the water washing is appropriate to use neutral non-enzymatic detergent, the best use of wool special detergent. If you use a washing machine to wash, it is advisable to use a drum washing machine and choose a soft program. Such as hand washing is best to gently knead washing, do not use the scrubbing board scrubbing. 3, sweater can not use chlorine bleaching solution, available oxygenated color bleach; using squeeze wash, avoid wringing, squeeze to remove water, flat spread shade dry or fold half hanging shade dry; wet state shaping or semi-dry when shaping, can remove wrinkles, do not sunlight exposure; to use softener to maintain a soft feel and anti-static. Dark colors are generally easy to fade, should be washed separately.