The shirt has folds under its armpits and is changed into a figure of eight.

Before washing the shirt, coat the collar net on the whole folded part of the collar face, brush it with a toothbrush for several times to remove stains, then put it in the washing machine and wash it with washing powder. You can also use this method when the cuffs are dirty. Don't dehydrate after the last time, take out the wet shirt directly, push the sleeves and collar of the clothes straight and flat with both hands, fold the whole length from both ends of the collar to the middle collar according to the reverse crease of the original collar, straighten the collar tip to make the collar shape symmetrical, hang the wet shirt with a hanger and drain. This can reduce the wrinkles of the shirt body, ensure that the collar does not bubble, the collar tip does not turn up, and keep the collar clean and crisp.