Quote:
Originally Posted by Phoebedances
Such a wealth of information for working with silk. I'm curious though, if you do something with different colors of dye, after you 'set' the dye in the fabric, do you have to worry after that about the dye bleeding if you have to wash the silk later? For instance, if you used yellow and red in a skirt and had to wash the skirt later, would the red bleed into the yellow and make it all orange?
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Quality dyes (for example Acid dyes or Procion dyes) will not bleed. They may discharge a little and for that reason should be washed alone, but discharge is different from the dying process. With some dyes, for example Procions, the dye reacts with the fabric fibers on a molecular level. When that reaction is over, the dye is permanent and leftover dye molecules might stain something but won't dye it.
There are also special detergents that can be purchased from Dharma that prevent discharged dye particles from redepositing and staining.