First off, sorry I know that this topic has been talked to death, but I have searched through all of the ‘How to Dye a Girth Belt’ threads that I could find. So, I have the Rit Dye formula and the dyeing procedure, but one thing that I am still a bit mystified about is the per dye 5 hour acetone bath. In some posts it indicated that the acetone bath is intended to remove the existing color in others it implies that bath prepares the belt to accept the dye by stripping off some kind of protective coating.
So, the question is: Is the acetone bath required prior to dyeing a natural/white girth belt? And of somewhat less importance, if so: Why? What exactly is the acetone doing?
Any help would be greatly appreciated.