I had this same problem recently with a long ago Christmas cross-stitch project, which I love. There was a lot of burgundy floss used and when I tried to gently wash this, all the burgundy bled! I went to the store to look for the color magnet type products, but most had to be used in a washing machine. I stumbled upon a product at Wal-Mart, called Carbonite--it comes in a small box and needs to be mixed with water. I placed my piece in the solution and the bleeding was immediately removed--but it did lighten the color a bit too. But at least the piece still looks good and I was able to salvage it. Good luck.