Dye Sublimation Transfer is a process where you take an image that has been created digitally, either by scanning, downloading from a digital camera or creating it on your computer, and printing this with a sublimation printer using sublimation transfer inks onto transfer paper. Once the image is on the paper, you place it under a heat press on top of your polyester or poly coated item (substrate) and heat until the inks turn to a gas and transfer the image onto the item.