Question:  For T-shirts, is it mandatory to use polyester T-shirts/fabric with dye sublimation printing?

There has been a lot of experimentation with various natural fibers and mixed natural fibers (like the 50/50 cotton tee), and for the most part, it is best, when using true dye sublimation printing on fabric, to use polyester fabrics.

Some have reported success with the 50/50 cotton tees, but most prefer to use available digital printers that have the proper inks for adhering to cotton, or screen-print inks which are also formulated for cotton or 50/50 t-shirts.