Have you tried Reveal-S from Conde? It works for some people. Give it a try and see if that's what you're looking for. Seems like much less trouble than dealing with sprays/powders. One benefit is, it's a self-weeding paper, meaning no polymer is released in the blank areas of the graphic.
Reveal-S Sublimation to Cotton Transfer Film
Search the forum for Conde Reveal S. There are a couple threads that a lot of people use to talk about that paper.
Reveal-S Sublimation to Cotton Transfer Film
Search the forum for Conde Reveal S. There are a couple threads that a lot of people use to talk about that paper.