So what is Sublimation Printing? Here is the technical jargon if you really want to know:

Dye-sublimation printing (or dye-sub printing) is a computer printing technique which uses heat to transfer dye onto materials

The process uses the science of sublimation, in which heat and pressure are applied to a solid, turning it into a gas through an endothermic reaction without passing through the liquid phase.

The end result of the sublimation process is a nearly permanent, high resolution, full color print. Because the dyes are infused into the substrate at the molecular level, rather than applied at a topical level (such as with screen printing and direct to garment printing), the prints will not crack, fade or peel from the substrate under normal conditions.

Dye-sublimation printing yields beautiful and permanent colors that are embedded in the substrate or fabric, rather than printed on the surface. Images on fabric won't fade or crack even after multiple washings.