Have you tried using Dye Grabber? I use this on every
type of material I pre wash and have never had a problem.
You can buy this at Hancocks. It works with any water
temperature setting. It does change colors after using it
in the washer. But the peace of mind of not having a
material bleed out on you is wonderful. Just a new person
on this quilting board. Thanks for all the wonderful
message posted each day. I really enjoy all the neat
information. Betty Lee