Hot stamping

Package with hot stamping before (left) and after stamping (middle) with the foil after the stamping (right)
A sample from trade fair, where all the foil hot stamping know-how that was publicly available at the time was included.

Hot stamping or foil stamping is a printing method of relief printing in which pre-dried ink or foils are transferred to a surface at high temperatures. The method has diversified since its rise to prominence in the 19th century to include a variety of processes. After the 1970s, hot stamping became one of the most important methods of decoration on the surface of plastic products.