I suggest that you buy a bottle of Retayne. You can find it at most fabric stores ($2.49/6 oz bottle) . You use one cap ful per yard of material ---so it really is not costly. I used it on 9 yards of deep green batik that had turned the color catchers a deep green. I tried the vinegar routine and then the salt routine....Nothing worked until the Retayne. I was not going to throw away 9 yards of the most gorgeous batik. My SIL washes new jeans in Retayne so that they look new for a much longer period of time. It is worth the fuss. I now wash any dark color in Retayne.