I always wash my fabric before using it. The only time i used retayne was when i bought lots of batik yardage to make a king size quilt-only made the top, so it didn't get washed again. i've only bought one jelly roll and it was 30's repro strips. i put white with it and had to buy 30's yardage to go with it. i didn't wash any of it and haven't washed the completed quilt yet. after reading this thread, when i do wash it, i'll put a color catcher or use synthropol . also with my BOm when i finish that. thank you ladies for helping to avoud a possible disaster!