Foil Elements

Foil Elements
Source: Giesecke & Devrient
Foil elements are security features that are easy to identify and therefore highly suitable for verifying authenticity. With their eye-catching designs, which are applied to a prominent area of the banknote or security document, they attract the attention of all users. Foil elements enable the creation of flexible designs through the incorporation of gold, copper, or aluminum effects.
 
Holographic foils
 
Holographic foils are attractive and eye-catching security elements for protection against counterfeiting. Hologram security elements are well-known to the public and cannot be reproduced by digital copying machines. Foil production is based on complex processes. Because the foils contain diffractive surface elements, colors and patterns change, offering scope for individual customer designs. These include holographic motifs with effects that simulate a movement, a change of shape, or a three-dimensional element.Demetallization is used to create transparent areas on the metallic surface. These show different information depending on whether the banknote is viewed face-on or held up to the light.Small and large text and graphical elements, patterns, or combinations of transparent, demetallized, and colored areas can be used to bring the design to life. The demetallization process provides an optimum, high-resolution contrast and is in itself secure.Holographic foils gain additional security through the use of covert security features. These include features that are visible under UV, laser, or polarized light.
 
OVD foils
 
combined_Effects_IMAGE_1COLThe combination of two complex security feature technologies in a single design presents counterfeiters with an insurmountable obstacle. These security foils offer striking effects and a raft of design options.OVD foils comprising two metal effects are particularly complex to produce, but their individual customer designs are quickly and easily identifiable. OVD foils can contain holographic, ColourShift, or Magic moire magnifier effects. They therefore differ considerably – even at first glance. Demetallization provides optimum contrast and high-resolution text and design elements.OVD foils gain additional security through the use of covert security features. These include features that are visible under UV, laser, or polarized light.
 
Foil Patches
mauretanien_1000_patch_IMAGE_1COLAs well as holographic foils, localized foil patches can also be applied to the banknote using hot foil stamping. Additional overprinting with intaglio printing creates a “sealed” security element that can be easily incorporated into banknote designs.