I agree with kristakz..............pre-wash in hot/warm with retayne, then run through with a colour catcher. I bought a Royal blue "quilt backing" made by Kona Cotton and We washed it 5X's and it still was bleeding. Each color catcher was almost darker then the fabric. Pretty scary when it will be near a off white border and mixed blocks of white/cream and other blue's. I am also giving it as a gift with a box of color catchers for the quilt.
I ALWAYS pre-wash fabrics for I make something with it. And once again after 40 some years of sewing and quilting, I am glad I always do. Extra work, but I would of been sick if they would of washed it and it all turned BLUE.
Originally Posted by
kristakz
From what I've read, pre-wash it (alone!) in hot/warm water with retayne. That should set the dye, and it will be fine (in COLD water) for all future washes. Personally, I'd run it through a cold wash with a colour catcher to make sure the retayne did the job, after the retayne and before quilting it.