Functionality and Technology

High-tech combined with brilliance

Südafrika-Bündel

To create the optically variable effect of the threads, special technical processes are required. Together with many years of experience and specially trained personnel, these processes are the requirements for manufacturing this proven, counterfeit-resistant feature.

ColourShift security foils are manufactured in different stages. For “thin film” technology, multiple layers of metal are applied using a vacuum deposition process to define a brilliant color shift. Subsequent demetallization makes a transparent clear text appear that is legible when held up to the light. The lettering within the thread can for example be the name of the country or currency and the value of the note.

Scalable security

An additional anti-counterfeit measure for the threads is the individual combination of hidden security features which can be scaled, i.e. adapted, to suit customer requirements. These security features include machine-readable attributes ranging from the magnetic coding of simple YES / NO recognition through to complex codes (MultiCode™), which may contain information on the value of the banknote. Elements can also be integrated that are visible under UV or polarized light.

Attributes of a ColourShift thread

  • Brilliant colors, multiple color options
  • Precise, unequivocal color shift when tilted
  • Clearly visible, transparent demetallization
  • Scalable security

ColourShift/ColourFix at a glance

  • Rapid authenticity check through built-in color reference
  • Brilliant colors, additional design options
  • Precise, unequivocal color shift when tilted
  • Clearly visible, transparent demetallization
  • Scalable security
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