For shrinkage, we can use hot steaming and stretching to restore the sweater to its original state. After washing, we can iron it and restore its original size. Another method is to cut the thick cardboard into the size and shape of the original sweater and put the sweater on the cardboard.

Spare materials: steam iron, towel, cardboard.

1 First, let's spread the sweater on the table.

2. Steam the various parts of the sweater repeatedly with an electric iron, and stretch the sweater by hand while ironing. Be careful not to burn too high, so as not to hurt your hands.

3. After ironing, pull the shrunk position by hand, such as cuffs, neckline and hem. , make it wider. Pull it to its original size by hand and put it on the table to dry naturally.

4. The second method is to support the sweater with cartons to match the shape. Cut a piece of thick cardboard (including two sleeves) the same size as the sweater, and it is best to stick adhesive tape at the incision to avoid scratching the clothes.

5. Then put the sweater on the cardboard and pull the corners, neckline and cuffs to the size of the cardboard for a while.