Laminated foil

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.

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LEAD^®

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.

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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).

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Liquid crystal

Optically active structures, e.g. for the generation of color-shifting printed effects. See also Colourshift.

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Long grain

The long grain orientation of the paper fibers runs along the short side of the sheet. Standard in commercial printing. See also Short grain.

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LongLife

Banknote paper with dirt-resistant features to increase the service life of a banknote.

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