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With intaglio printing, the ink is pressed deep into the paper so that specific parts of the image stand slightly above the surface. When you run your fingers above it, you can feel fine ridges and raised lines – almost like a miniature sculpture. This tactile effect is not only visually appealing, giving the design crisp detail and rich texture, but it also serves as a subtle security feature. That special “feel” is extremely hard to copy with ordinary printing methods and finger sensitive, enabling it a fast and reliable way to tell genuine items from imitations.
The control of the engraving and printing process requires extreme precision – often controlled down to micron (1000th of a millimeter). At this scale, even the tiniest inconsistency can blur a line or flatten the raised feel. It is a blend of craftmanship skill and engineering accuracy.
The Dynamix Shimmering Pattern and colour-shifting effect (changing from green to blue when titled) are produced from the silkscreen printing process. A precise alignment of the orientation of the microscopic magnetic pigments is important to ensure that optical response, meaning the shimmering or shift effect, would appear as designed without distortion.
Microtext on banknotes is extremely small printed codes in the form of small text or patterns that are hard to see with naked eyes but can be read under magnification. It adds an extra layer of security that makes it very difficult for counterfeiters to copy accurately with standard printing equipment. Even the slightest variation can make the microtext blurry or illegible, and the text must still stay clear after the banknote has been in circulation for a long period of time.
Latent image printing demands extremely accurate alignment of very fine lines and machine calibration to create the hidden numeric values or symbols consistently and error-free. A latent image or design is only visible when the note is tiled.
This is security printing technique where special inks that glow under ultraviolet (UV) light are applied to a banknote. The “invisible ink” has to be just right and printed in the exact spot. When merchants or cashiers shine a UV light on a banknote, it offers a fast and user-friendly method to check the authenticity.
