Hot Foil Stamping
An image formed with the use of a heated die (a form of letterpress printing) which forces the foil against the substrate. The image can be applied to paper, cardboard or a polymer substrate. Due to high pressure, foil particles penetrate deeply into the substrate, making mechanical separation virtually impossible.
a
b
c
Fig. 1. DPRK. Seaman’s passport issued in 2007:
a — data page. Paper substrate; b — the same. Laminate. Silver stamping; c — the same. Zoomed fragment
a
b
Fig. 2. Australia. Emergency passport issued in 2009:a — cover; b — the same. Zoomed fragment. Silver stamping
a
b
Fig. 3. Belarus. Passport issued in 1996:
a — cover; b — the same. Zoomed fragment. Gold stamping
a
b
Fig. 4. Australia. Travel document (Convention of 28 July 1951) issued in 2009:
a — cover; b — the same. Zoomed fragment. Stamping with black foil