You can wash it by hand. Generally, the shampoo is poured into water, and the sweater is soaked for 10 minute, then washed, then soaked in softener for 2-3 minutes, and then washed with clear water. But just pay attention to a few points
(1), do not use washing powder, use neutral laundry detergent, or preferably use wool detergent;
(2) The water temperature should not be too high. 30 -40 degrees warm water
If the clothes label says you can't wash them, you can also wash them with steam from the iron, and then the soft wool is not easy to get dirty and easy to clean. However, it is best not to wash after each wear, and dirt can be removed with emphasis. Wipe the collar and sleeves with a soft brush after each wear.
Extended data:
Matters needing attention in wool washing:
1, wool products are recommended to be dry-cleaned as much as possible;
2. Wool fabric is not alkali-resistant. If it is water washing, it is advisable to use neutral detergent without enzyme, 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.
3. Wool fabric can not be bleached with chlorine-containing bleaching solution, but it can be bleached with oxygen-containing color; 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.