More than the bleeding and shrinkage, I launder imported fabrics to get rid of chemicals - especially pesticides.
But....
I have two red and white quilts on my bed. ALL of the fabric was prewashed. Some pieces were done twice. I believed I had completely bled it out, but now I have red, white and pink quilts. Not even from washing... presumably just the humid summers!!! :evil:
Also, I have worked in quilt shops. Those fabrics shrink. Some Moda fabrics had 8% shrinkage. The flannels shrunk to 38" - 39" wide (including selvedges).
Still, my primary concern is the nasty chemicals.