Generally speaking, because wool is not alkali-resistant, it should be washed with neutral detergent or soap chips, and the water temperature should not exceed 40℃. Don't wash with a washboard when washing. Even if you have to wash it with a washing machine, you should wash it lightly, not for too long to prevent it from shrinking. Don't twist it after washing. Squeeze by hand or absorb water with a dry cloth. If the washing machine is dehydrated, it takes half a minute. After washing, put the dried sweater on the towel quilt, flatten it, let it stand, and hang it up for a day or two to dry, so that it won't shrink. The way to keep the sweater from stretching is to put it in a net bag, put it in after setting, put it in after folding, and dry it naturally.

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Sweaters will shrink to varying degrees after washing, and the higher the wool content, the more serious the shrinkage will be. How to simply restore the shrunk sweater to its original state? Readers may wish to refer to the following methods:

You can reuse the cardboard pad attached to the sweater, or you can cut a piece of cardboard with the same specification before the sweater shrinks (if it is difficult to accurately judge the specification, it should be smaller) and put the shrunk sweater outside the cardboard. After ironing with a steam electric iron, let it stand for about 30 minutes, and then take the cardboard out of the sweater. It should be noted that the temperature of the steam electric iron should not exceed the tolerance range of the sweater. This treatment can restore the shrunk sweater to its original state.