I had bought some material for a quilt for my SIL. Nothing is going to be sewn without going to the wash first. Anyway, I had bought maroon, cream, turquiose, and a light blue. I really expected the maroon to bleed. Well, it was the turquiose! Would never have expected that to bleed. I had paid $9 a yard for this material at the LQS. Am now a firm believer in pre washing. Have been sewing etc most of my life and have never had an issue with overdye.