I use Printed Treasures. It is sheets of fabric with the paper already attached to the back. The fabric is pretreated. When the ink is all dry, the color is set and there is no need to use any other chemicals to make the ink permanent. The down side is that they are expensive: 5 pages for $18.00. To me is worth it if I don't have to soak the fabric after is printed and wait for it to dry. I can go from printer to sewing machine in minutes.
I have used it for printing lables in the past. The glue on it is good and don't come off easily, but I still hand sew after the quilting is done, or attached it before is quilted and quilt over it to secure. It can not be used for laser printers.
Maria