Dye sublimation inks are used for all over prints. Embedding the ink into the fiber. Think opposite of DTG. For dye sublimation inks will not ebedd into cotton fiber. They wash away after a couple washes. So pick 100% polyester white tees. Dye sub inks are transparent and not to be used on colored shirts unless print is black or much darker than the t-shirt color, but expect the shirt color and print colors to mix and change finished print colors.