ColourShift and ColourShift/ColourFix security threads for brilliant and distinctive color changes

ColourShift threads carry stunningly brilliant colors and feature a distinctive change in color when tilted. Louisenthal offers several color change effects for customization to a specific banknote design.

ColourShift/ColourFix threads take the concept of the ColourShift thread even further. While the ColourShift surface clearly changes color when tilted, neighboring ColourFix areas remain fixed with the same color. On viewing a banknote, the user can easily distinguish the unchanged reference color and the color-shifting area, which typically includes the reference color in its design.

Unlike standard ColourShift threads, the two areas of the ColourShift/ColourFix thread make it possible to use customer-specific designs. The dual-area concept supports highly attractive designs and eases the authentication of the security feature.

All Louisenthal’s ColourShift threads have the advantage of being able to carry highly transparent demetallized areas boosting their appearance and security.

To further enhance the security of the thread to protect against counterfeiting, security threads can be equipped with covert security features. These include machine-readable properties such as magnetism and electrical conductivity, or elements visible under UV or polarized light.

See also Covert Security Features