Well I conquered brown, now onto black. The first photo was an unsuccessful attempt. As you see the color didn't take very well. It's a nice pewter gray, but that wasn't what I expected when I pulled it out of the dye bath & rinsed it. I thought of over dyeing it, then realized, hey you might have a need for that color so leave it as it & start over.
I knew it wasn't the water temperature since I dyed it inside my warm studio. I added salt, I added water softener, & I added enough dye powder, which makes me think it was the dye itself. It was over a year & half old. So back to the drawing board. I remember seeing on Dharma's website, that with one of their black MX dyes that it works best if you heat the bath to around 130 degrees. I was using Pro Chem's dyes but thought I would give it a try. It worked, check out photo number 2. There is a small hint of dark blue in each of them but I think I can live with that.
If you were wondering, in the first photo from left to right the materials are (before dyed) white on white cotton swirls, cotton velveteen, cheesecloth & bamboo fabric. The second photo, left to right: cheesecloth (one can never have enough dyed cheesecloth), cotton velveteen, the white on white cotton swirls & bamboo fabric.