redlumbb redlumbb
I have seen information on mixing dyes that tell you to add some urea to the mixture. Is this necessary/
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Noelle Noelle
[url="http://www.jacquardproducts.com/products/chemicals/urea.php"]Urea[/url] is a 'humectant', it attracts moisture from the air to help the fiber stay damp longer which gives more time for the reaction between the dye and [url="http://www.jacquardproducts.com/products/chemicals/sodaash.php"]soda ash[/url] to occur. It is not critical for tie dye. I never use it and I am quite happy with my results, of course it might be interesting to do a test to compare one recipe with Urea and one without to see if I can tell a difference.
If you're just having fun with tie dye I wouldn't worry about it at all.

Noelle
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