Calf tail, though hard to stack, is easier done when it is clean. With this in mind, in the spring I washed (cold water and woolite) two tails (flour. pink and a flour. orange). Unfortunately they ended up light pink and rusty orange, as a lot of their color washed right out. My guess is that was not caused by the woolite (please correct me if I am wrong!) but because the colors were not "fixed" during the dyeing process. Anyway, I now have purchased two more flourescent tails and want again to wash them. How can I be sure the colors are fixed. Do I soak them first in a diluted mixture of vinegar? Something else? Do I use warm water to make the mixture? What ratio of water to vinegar? Thanks.