Ok, so I have done lots of tie dyeing using procion dyes from Dharma. And dying protien fibers with Koolaid. But now I want to try dying some towels and I was wondering what method would be the best to get the desired effect. They are white cotton towels. I mistakenly thought that by buying all white towels I could keep them bright and matching by bleaching them. Not so. Something with our hard water just makes them always look dingy. So I am switching my plan to off-white towels. I want them to resemble "unbleached" cotton. I though about dying with tea or coffee or just picking up some Rit in Ivory.
I've never done big items like that, but I have done a ton of ts and baby clothes. You will need to use procion dyes and soda ash. For the presoak in the soda ash mix you can use your bath tub. I'd do the actual dying outside. You'll need to wrap it up in plastic to allow the dye to set for 24 hours. Buy a cheap plastic table cloth from the dollar store or something for that. Again, to rinse it out I'd use a hose and hang it over a fence or something. As a final step it's best to wash with Syntaprol detergent to make sure all the excess dye is removed and it's all colorfast. Good luck! Sounds like a fun project.