I had thought of using the color catchers however, the smart gal at the LQS mentioned that you would have to keep using color catchers if you don't set the dyes in the fabric with the Retayne. Keeps the quilts from fading with each wash could happen if you don't set the dyes. If its not a quilt that will be washed much, probably not as much of a worry, but would hate to put the time into a quilt only to have it fade.