Wool is a natural fiber with excellent wearability and is the most widely used animal hair fiber in textile products. However, due to people's insufficient understanding of wool fiber and some characteristics of wool itself, if wool is not properly protected, it is easy to follow the water. Method 1: Heat the shrunk sweater fiber with a steam iron, and then stretch it with both hands while it is hot. According to experience, due to the limited heating area of steam iron, in order to ensure uniform fiber stretching, sweaters are stretched locally, sectionally, sectionally and by heating. The fiber can't be stretched much at a time, so it needs to be heated and stretched repeatedly. Know the total length of stretching before stretching, so as to know the stretching length of each segment. After all stretching, we should measure the total length with a ruler. If the length is not enough, we can repeat it. Pay special attention not to oversize, and finally adjust it appropriately.

The operation should be carried out on the ironing table. At home, you can spread a blanket on the desktop. After all, it is best to heat, shape and cool with a camera.

Method 2: We can spread the sweater out first, put it on a flat thick paper board, then pull it to its original size, fix it with thumbtacks or tacks, then steam it above the sweater with a steam iron to make it fluffy, and then take off the thumbtacks when the clothes cool down, so that the sweater can return to its original size.

Remember that washing will not shrink in the following aspects.

Washing method

First, the water temperature should be around 35 degrees. When washing, gently squeeze it with your hands, and do not rub, knead or twist it with your hands. Never wash it with a washing machine.

Second, be sure to use neutral detergent. When in use, the ratio of water to detergent is generally 100: 3. Third, slowly add cold water during rinsing, so that the water temperature gradually drops to room temperature, and then rinse it clean.

Fourth, after washing, press the water out by hand, then wrap it in a dry cloth and press it again. You can also use a centrifugal dehydrator. Pay attention to wrap the sweater with cloth before putting it into the dehydrator; You can't dehydrate for too long, you can only dehydrate for 2 minutes at most.

5. After the sweater is washed and dehydrated, it should be spread out in a ventilated place to dry, and it should not be hung or exposed to the sun, so as to avoid the deformation of the sweater.