Intaglio Printing
Definition
A high-pressure printing process in which ink is forced into engraved recesses in a steel plate and transferred to paper, producing a slightly raised (tactile) ink layer of 5-20 µm. The raised relief and specific binder chemistry of genuine intaglio are primary authenticity markers.
- Ink location
- Sits in engraved recesses below the plate surface, transfers as raised relief
- Tactile thickness
- 5 to 20 micrometers on genuine currency
- Substrate pressure
- High hydraulic pressure forces paper into recessed ink
Common questions
What makes intaglio-printed banknotes feel different than other printing?+
Intaglio ink sits in tiny recesses cut into a steel plate. When pressed onto paper under high pressure, it creates a raised, tactile relief you can feel. This raised surface is one reason intaglio is a gold-standard security feature on genuine currency worldwide.
How thick is the raised ink layer on an authentic intaglio note?+
The tactile relief measures 5 to 20 micrometers thick. This thin but distinct ridge is a physical authenticity marker. Counterfeits often fail to replicate this specific ink depth and binder chemistry.
Why is intaglio so hard to counterfeit?+
The process requires engraving a steel die, then forcing ink into the recesses under high hydraulic pressure. It combines mechanical precision, specialized equipment, and chemistry that counterfeiters struggle to match. The combination of raised relief, binder properties, and tactile feedback makes intaglio a reliable security layer.
Related terms
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- FICN
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- FICN (Fake Indian Currency Notes)
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- Goniospectrophotometry
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Explained in these topics
- Counterfeit Currency: Security Features and Chemical AnalysisA high-pressure printing process in which ink is forced into engraved recesses in a steel plate and transferred to paper, producing a slightly raised (tactile)...
- Currency Security Features: Substrate, Threads, OVI, MicroprintingA security printing process in which the design is engraved into a steel die, ink is forced into the recesses, and the substrate is pressed under high hydrauli...
- Typescripts, Printed Matter, Currency and Mechanical ImpressionsEngraved-plate printing in which ink sits in recesses below the plate surface; transfers as a raised, tactile relief on the paper. The signature feel of genuin...