Name: reggie
Message: Which dye would a use on dungarees? I have a light black pair and want to make dark black. I also have a light blue pair I would also like to make black.

What fiber are they made of? The best way to dye cotton is with the use of cool water fiber reactive dyes, such as Procion MX dye. The results are much brighter, more permanent, and easy to apply than all-purpose dyes can ever be. Fiber reactive dye works wonderfully on cotton, rayon, linen, and hemp.

If the fiber is synthetic, I do not advise you to dye them at all. See "Dyeing Polyester with Disperse Dyes ".