For testing purposes I made two rope necklaces - one a simple wrap necklace and the other a macrame necklace. The first one used cotton cord and the second was polyester. (Natural fibers are recommended for dyeing.)
I presoaked the necklaces in water and then just squirted some blue dye on one end. The dye wicked up the necklaces more than I imagined it would.
I wrapped the necklaces in plastic and let them sit overnight. Then I let them dry then rinsed them in cold water and let them dry again. (Don't know if the pre-dry was necessary or not.)
As you can sort-of tell, the cotton cord held the turquoise dye better and created a more intense shade of blue. However, the poly didn't do so bad either. If I were to do it again, I would soak only the bottom bit of the necklace in water.
I haven't figured out what to do with the macrame necklace yet or whether the whole concept would be better as a bracelet. Any thoughts on that?
I"ve already worn the wrap necklace a couple of times. It's a very summery item.
Should I make more? Still debating this.
Regardless, the dye was ridiculously easy to use. With planning, you could whip out a dozen necklaces in 10 minutes.
Tulip's One Step Tie-Dye kits are available at Walmart, Walmart Canada, Michaels, JoAnn, A.C. Moore, Hobby Lobby, Hancock Fabrics, and Meijer. Different types of kits have different colors. You can buy one-color refills for about $4, which I'm thinking about doing since I'm on this blue kick lately.
Would you attempt tie-dying?