[TheForge] Chemical question

[Lynn and Susan Lang]

>I need more convenient (and cheaper!) access to a particular chemical,
for more of my dyeing experiments. It's called "Soda Ash >Fixer", says
it's Sodium Carbonate, and its use is as a dye activator. Anybody know
what else it might be called, and how I might >get more, preferably
cheap?

Are you after a dye activator or do you want something to set the
colors?
If the task is to set the colors you want what is called a mordant. The
mordant you use is determined by the fabric and dye type..

Good luck 
lynn