Soak in salt, about a spoonful, and the water just covers the product. Soak for half an hour. In addition, you need to see which brand you bought. Lace washing may be troublesome. Can you wash it with a washing machine and dry it? Generally, the water temperature is up to 40, so be careful, otherwise some brands of lace will shrink, and be careful not to mix with other colors. In addition, the quilt cover in turn is a cool and ventilated place.