Heat transfers are images that can be imprinted on fabric. They are frequently used to print onto T-shirts.
On one side is paper, and on the other is the image that will be transferred in reverse. After placing it on the fabric and either running over the fabric side with an iron or pressing with a heat press, the image is transferred to the fabric. Iron-on transfer paper is available for use with computer printers.
Commercial quality heat transfer paper used in a heat press will yield much better results in terms of ‘hand’ (how the print feels on the fabric) and durability than store bought papers or transfers applied with a home iron.