Clothes will shrink and become smaller, and baby shampoo can make clothes bigger. Not suitable for making silk clothes. Other materials can also be used. 1. First, pour 1 warm water into the container, then pour 15 ml baby shampoo into the container and stir it evenly in warm water. 2. completely soak the shrunk clothes in water for about 30 minutes. 3. Take out the clothes without rinsing. After wringing out, put it on a towel and roll it up. 4. Stick another towel and wring it out, and keep it for 10 minute. Finally, take out the clothes, flatten them and hang them to dry. First, steam ironing sweater fibers can be heated and stretched with a steam iron, and then stretched 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 adopt local, segmented, divided and heated stretching methods. 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 length of each segment. Measure the total length with a ruler after stretching. If there is not enough space, you can repeat it. Be careful not to be too big, 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 completion, it is best to heat, shape and cool with a portrait camera. Secondly, cardboard has a way to enlarge the shrinkage rate of sweaters after washing. The specific method is: cut it into the size and shape of the original sweater with thick cardboard (cardboard of home appliance packaging box). It is best to sand the incision with sandpaper to avoid snagging the sweater. Put the sweater on the cardboard, fix the bottom with several hangers, then steam iron the sweater repeatedly in various parts with an electric iron, and take it off after it is completely cooled. Third, first add shampoo to a basin of warm water at about 30℃, wash the sweater and wrap it in cloth for dehydration; Take a domestic steamer and scrub the drawers and lids of the steamer with detergent to remove oil stains. Add some water to the steamer and bring to a boil. Fold the washed sweater and put it in the steamer. Steam 10 minutes before the fire. Put on thick gloves and take out your sweater. Cut a piece of cardboard (including two sleeves) about the size of the original sweater. It is best to stick tape on the incision to avoid scratching the clothes. Then, put the sweater on the cardboard, draw the corners, neckline and cuffs to the size of cardboard, and fix them with pins or clips. Individual parts can be stretched by hand.