- May 1, 2008I have a couple questions for someone who works with natural dyes.
I have some indigo for dyeing hair. It's green, but I see that most
indigo for cloth dyeing is blue from having been through a fermentation
process. Can I use my hair indigo for cotton without further processing?
Also, I have some madder powder that I bought a couple years ago. It
has been stored in a sealed heavy plastic bag in a cool place out of the
light. Does it go bad or lose potency, and if so, how do I tell?
Can someone recommend a good how-to site for a beginning dyer?
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