Foil stripe applied to a banknote paper which, particularly in the case of window elements, serves to cover the window. These stripes are normally equipped with additional optically variable printed effects.
LEAD is an acronym for “Long-lasting Economical Anti-copy Device.”
The security system applied to the surface of the banknote or security paper, consists of a paper primer, a hologram stripe applied to it, and an integrated overprint, typically by means of intaglio embossing.
Levels of authentication
The authenticity of banknotes can be ascertained in various ways:
Level 1: using human senses such as seeing or feeling (so-called human features).
Level 2a: with the assistance of devices such as a magnifying glass, UV light, filters, etc.
Level 2b: sensors in processing machines (machine-readable features) and / or forensic devices, e.g. high-tech lab equipment (such as electron microscopes).
Optically active structures, e.g. for the generation of color-shifting printed effects. See also Colourshift.
The long grain orientation of the paper fibers runs along the short side of the sheet. Standard in commercial printing. See also Short grain.
Banknote paper with dirt-resistant features to increase the service life of a banknote.