A design is printed onto special paper. The inks that are used turn into gas when brought under heat, then combine with the fabric and permanently print onto the fabric. The effects are permanent and less prone to fading, as the ink is embedded in the fabric or substrate rather than simply laying on top like a normal print.
The heat opens up the pores of the fabric, then with the applied pressure the ink cools and returns to a solid form.
The result is a permanent, full colour image that won’t crack, peel or wash away from the substrate.