Sublimation transfer is a process that uses an image that has been digitally 
 created by scanning, downloading a picture taken with a digital camera, or
 created in a piece of graphic software like Photoshop or Corel. This image 
 is then printed onto transfer paper with an Epson desktop printer using
 special inks called sublimation inks. Once the image is on the paper you place 
 it under a heat transfer press on top of a substrate and heat the paper.   
 When the sublimation dye is placed next to polyester and heated, at 
 approximately 400 degrees the polyester molecules open. The sublimation dye, 
 which at this time is a gas, will then be able to penetrate the surface of the 
 polyester.  After the heat is removed, the polyester molecules will close 
 and permanently trap the sublimation dyes, and  therefore the image, into
 the polyester substrate.

What Type Of Images Can Be Sublimated? 
 
Any image or graphic, once saved to your computer of at least 300 dpi, can 
 be used (subject to copyright laws). The image can be scanned with a 
 regular desktop scanner, or created using many of the available image 
 editing software programs such as Corel® or Photoshop®.  You can even 
 download the image from your digital camera.