United Silicone Press Release:

Ins and Outs of Hot Stamping v. Heat Transfer
The hot stamping industry as we know it today began in the 1940s with the introduction of roll leaf, which was hot stamping foils manufactured in roll form. The early hot stamping foils used acetate or cellophane as the carrier. Hot stamping applications greatly expanded through the late 1940s as the first vacuum metalizing of a carrier film was introduced in Europe. - read more