1. Steam ironing

Heat the shrunk sweater fiber with a steam iron, and then use both hands to stretch the fiber while it is hot. According to experience, due to the limited heating area of ??the steam iron, in order to ensure that the fibers are stretched evenly, the sweater is heated and stretched in a partial, segmented, and divided manner.

The fiber cannot be stretched a lot at one time and needs to be heated and stretched repeatedly. Before stretching, you should know the total length of the stretch, so that you can also count the stretch length of each section. After all stretching, use a ruler to measure the total length. If the length is not enough, repeat the process. Pay special attention to not overdoing the size and make appropriate adjustments at the end. The operation should be carried out on the ironing table. At home, you can lay a layer of blanket on the table. After all is completed, it is best to go through the portrait machine to heat, shape and cool the shape.

2. Thick cardboard

Use thick cardboard (cardboard from home appliance packaging boxes) to cut into the size and shape of the original sweater. It is best to polish the cut with sandpaper to avoid snagging the sweater. . Put the sweater on the cardboard, secure it with a few clothespins at the bottom, then use an electric iron to repeatedly steam iron all parts of the sweater, and remove it after it is completely cooled. Use fabric softener to improve the hand feel. Steam the clean sweater in a steamer for about 15 minutes, then take it out and pull it to its original size by hand, then place it on the table to dry naturally. Save money without damaging the sweater.