I am somewhat dismayed at how much people recommend color catchers here for bleeding fabric. People, color catchers do NOT stop bleeding dye. They are merely a conduit for absorbing the loose dye in the wash water so it doesn't go onto other fabrics. You are only treating a symptom with color catchers, not the problem. Additionally I have an acquantance who works for Consumer Reports. She is actually a scientist and was the tester for this product. Her results were not overly positive for color catchers. Here is the result:
http://www.consumerreports.org/cro/m...view/index.htm
I like Jan's idea then I would treat both the bleeder and the newly dyed fabric with Synthropol to set the dye.