I would imagine you are going to have to pretreat your fabrics. I have a package of those ink jet labels in my sewing room - the package says handwash only no detergent(?) how on earth do you do that? It also says no machine washing - so obviously they know the ink is not going to stay put. So those labels are great as long as you don't plan on using or washing your quilt. I will stick with embroidered labels, myself.