I make my labels using light weight fusible interfacing (like you use for when making collars and facings in garments) for the back and cotton for the front. I stitch the interfacing to the FRONT of the label with the glue side facing the RIGHT side of the label. I stitch 1/4" all around the four edges. I then cut a slit in the interfacing and turn it to the back through the slit. By putting the fusible side toward the right side of the label to start with when you turn it it is now on the outside of the back. I press the label to the back of the quilt and then slip stitch around the edge to secure it more. The fusible does not come off in the wash.