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Dominoes
Sep 20, 2007

Hey, hoping y'all can help! I'm looking for a black dye that's non-toxic, and completely water-fast. I'll probably use it on jute, or some other type of natural cloth. It needs to withstand high temperatures (up to 70C) under constant submersion without bleeding. Any ideas?

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Dominoes
Sep 20, 2007

Arsenic Lupin posted:

Nice work! I love the result.


You want to call or write Dharma Trading, http://www.dharmatrading.com phone 800-542-5227 "anywhere in the U.S. or Canada M-F 8am to 5pm PST". They started out as a hippy-dippy business in Berkeley, and while still being that are the most knowledgeable retail dye suppliers in the U.S. Tell them your requirements, and they'll know what fits the bill. I will say that dye mordants (the things that keep dye from running) are generally toxic to one degree or another; do you mean that the fabric's non-toxic after it's through, or that you can raise fish in the cooled water?
Thanks; will send them an email.

I'm using this as a wick for a solar still, so needs to be and stay black, and not contaminate the brine with black dye, which will be continuously recycled via a pump. I'm currently using pre-dyed burlap that bleeds all over.

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