Using PFD fabric
 

When using "prepared for dying" fabric do you wash it first?

Interesting question. Never wanted to try to dye fabric. No instructions came with the fabric?? Any instructions on the dye package??

no all the sizing and chemicals are not put on it si I use as is

It doesn't need to be pre-washed in order to absorb the dye, but if you're worried about shrinkage then I would wash it.

It is already "prepared for dyeing". :)

I do not pre-wash it. I just iron it with steam (no starch/sizing) and start inking or dying. :)
I religiously pre-wash all my other fabrics -- just not PFD.

Yes, I prewash mine. You don't know just what chemicals/finishes have been used on the fabric in the manufacturing process. The additives may make the fabric react differently when dyed. I think there is a fabric out there that is made specifically for dying, but I can't remember it now.

no, it comes already ready for dyeing.

Thanks for replying
 

Thank you for replying. I bought the fabric online and no instructions were included. Now i can play.

I don't know for dyeing but I wash mine before painting.