The embroidery transfer patterns that I used years ago will not come out. They were transferred onto my cloth with a hot iron. I have in the last few years bought some pre-printed crib quilt tops that will start to run if I get it wet. Unless I embroider then use crayons and color and heat set it - THEN the markings don't come out. I know better now. Keep it dry until it's completed and then wash it.