I've used Synthrapol and Retayne on red batik and treated six times and still have bleeding. I have a bundle of red and white half yd cuts which are now red and pink. I always prewash all of my fabric, so I have no surprises later. My friend had to replace parts of the quilt she made for her sister after her sister washed it for the first time. (Always wash quilts in cool water with Orvus or Ivory dish soap for handwashing.)
Check these websites regarding bleeding (especially red):
http://www.quiltingboard.com/t-5337-2.htm
http://www.quiltingboard.com/t-94599-1.htm
Synthapol and Retayne - description and directions
http://www.prochemicalanddye.com/store/home.php?cat=323
Retayne:
http://www.prochemical.com/direction...DF/Retayne.pdf