There are many materials associated with Tub Dye. Some are essential, some are very helpful, and some just make the whole process more fun. Chemicals tend to be a part of the "helpful" and "essential" catagories but if you find yourself having fun with them, don't panic.
The required chemicals you simply can't use our Fiber Reactive Dye for Tub Dyeing without are:
Soda Ash Fixer (#FIX)