Used mainly for hot stamping onto leather, gold film is available exclusively in the 22 carat yellow gold colour. The leaves are applied on a plastic base treated with a separator and finished with a size coat (thermal adhesive).
The combination of pressure and temperature causes the separator and adhesive to melt, so that the gold adheres to the surface being decorated.
The film is them removed, leaving the decoration on the surface.
Used above all for hot stamping onto leather, gold leaf rolls are supplied on a polyester and beeswax support.