It depends on what kind of fiber your clothes are made of. I don’t know if the tight-fitting clothes you are talking about are elastic. If they are elastic, soak them in whitening soap or antistatic water. However, both of these will damage elastic (spandex) and cannot be restored to its original shape. If it is knitted, you may have improperly dried it after washing. It should be laid flat after washing. It can restore its original shape.

1. Steam shrink the sweater fiber by heating it 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 must 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 for heating, shaping and cooling. 2. There is a way to amplify the shrinkage of thick cardboard sweaters after washing. The specific method is: : Use thick cardboard (cardboard from home appliance packaging boxes) to cut it 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. Third, to send the clothes to the dry cleaners, you only need to take the clothes to the dry cleaners, dry clean them first, then find a special rack of the same model as the clothes, hang the sweaters, and after high-temperature steam treatment, the clothes can be restored to their original appearance, and the price is the same as dry cleaning. .

Reminder: After buying a sweater, pay attention to the label inside the sweater, and do not use water washing on sweaters that need dry cleaning