I just washed my newest quilt made with turquoise hand dyed fabric in the washer with hot water and Synthrapol. It looked ok coming out of the washer but some dye transferred on to the other fabrics in the dryer. It's my own hand dyed fabric, which I didn't get all the dye out of apparently
. I will rewash it and trust that the Synthrapol will take care of it. It's cotton+rayon batting.
I hadn't realized that you were using wool batting! Hot water and agitation could be a disaster there. I'm not sure how I would proceed with wool batting.
Addendum here: I washed the quilt two more times. The turquoise continued to bleed and transferred onto one only of the fabrics. At least it's a uniform color and not blotchy like after the first wash. So I can say that my advice was not so good- it worked one time, and not another! Big Sigh!
Kathy