In early winter, sweaters are a must-have item to keep you warm, and there are often some tricky problems when cleaning them. Learn the following tips to easily lift the sweater washing worries. 　　Sweater stained with stains need to hand wash should pay attention to what? 1, wipe the stain should be pressed in order to avoid the expansion of the dirty range; 2, according to the different wool material, choose the appropriate detergent, so as not to damage the clothing (basically wool clothing to use neutral detergent); 3、Spray the detergent on the stain and leave it for a few minutes, after the stain is dissolved, then remove the dirt by patting it, avoid pulling and rubbing as hard as possible; 4, the water temperature should not exceed 35 degrees, so as not to deform the sweater. 　　How to do when the sweater shrinks? 1、Soak the shrunken sweater into the warm water with clothing soft essence, then leave it for an hour, wait until the sweater fiber becomes soft, then slowly pull the sweater back to its original appearance, and finally lay it flat to dry. 2. Use an iron to heat up the sweater fibers (please check the laundry label first to avoid burning) or steam it in an electric pot for 10-15 minutes, and stretch the sweater fibers while it is still hot to restore the sweater to its original shape. (Choose to use an iron to heat the way you need to keep repeating the heating and lengthening steps). 3, the thick cardboard according to the original shape and size of the sweater cut models (the edge part can be sandpaper smoothing or tape to avoid hooking bad sweater), the sweater will be set on the cardboard and fixed with clips, iron repeatedly, and finally, wait for the sweater to cool down and take off.