Lines made with the Dritz Disappearing Ink Marking Pens will disappear in 24 to 72 hours. Use marking pen on washable fabrics to transfer pattern markings and quilt or craft designs. Some fiber contents, fabric finishes or dyes (red and pink in particular) may not be suitable for use with this pen. To remove marks, rub gently with clean damp cloth well moistened with plain water. Not recommended for dry clean only fabrics.
Always test any marker on a small piece of fabric before using. Some sizings may prevent the marks from washing out.