Hot Foil Ribbon is a type of ribbon used in hot foil stamping, a process in which a design or text is transferred onto a surface using heat and pressure. The hot foil ribbon is made up of a thin layer of heat-sensitive pigment or metallic coating on a plastic or polyester backing. During hot foil stamping, the ribbon is fed through a machine that heats the metallic layer of the ribbon. The heated ribbon is then pressed onto the surface being stamped, such as paper, leather, or plastic.