Public authentication
Clear windows, diffractive OVDs, micro-optic motion, color-shifting inks, and tactile structures that can be checked quickly without equipment.

Q&T manufactures PolySecure® banknote substrate in Hanoi and develops next-generation embedded security architecture for central banks, state printers, and high-security currency programmes.
Billions of Vietnamese banknotes in circulation carry substrate manufactured by Q&T. Behind every note is our dual commitment: uncompromising quality controls and continuous technological advancement.
The technical reference separates banknote security into optical, ink-based, and machine-readable controls. PolySecure is presented around that institutional model: no single feature carries the security case alone.
Clear windows, diffractive OVDs, micro-optic motion, color-shifting inks, and tactile structures that can be checked quickly without equipment.
UV fluorescence, magnified microtext, thermal response, and tool-assisted checks for banks, retailers, and cash-processing teams.
IR signatures, magnetic response, spectral behavior, and restricted taggants designed for sorters, ATMs, central banks, and forensic review.
Holograms, KINEGRAM-style DOVIDs, micro-optic movement, and micro-mirror effects form the overt layer that the public can recognize.
OVI, UV/IR, thermochromic, solvent-reactive, iridescent, and dynamic magnetic inks add independent chemical and optical barriers.
IR-absorbing, magnetic, and spectral features provide the automated authentication layer required by modern cash cycles.
PolySecure® is a multi-layer polymer substrate designed for print compatibility, transparent-window security, and verified circulation performance in sovereign banknote programmes.
EXPLORE TECHNOLOGYPolyShield™ is Q&T's next-generation embedded OVD substrate architecture, placing optically variable security within the polymer structure to reduce surface-wear exposure.
EXPLORE SECURITY
Q&T’s facility is powered by main grid electricity utilizing Vietnam's renewable energy mix, with the industry’s only closed-loop solvent recovery system — achieving the lowest carbon footprint per substrate unit of any polymer manufacturer globally.
Supplied by the national grid mix, where hydroelectric power constitutes 34% of the total renewable energy share.
The world’s only closed-loop solvent system in polymer substrate production. Near-zero VOC emissions.
Full circular lifecycle. End-of-life substrates recycled into new polymer products.
32% lower carbon footprint over the banknote lifecycle compared to cotton-paper alternatives.
Explore Our Sustainability Story →CLIENT RELATIONSHIPS ESTABLISHED THROUGH FORMAL SOVEREIGN PROCUREMENT PROCESSES
Vietnam's national security printer. Q&T substrate is used for Vietnamese đồng banknotes currently in active circulation, providing the primary field reference for the platform.
One of Europe's longest-established security printers, with more than three centuries of expertise. Collaboration supports external print-market validation of Q&T substrate and embedded OVD capability.
From Hanoi to the Netherlands — proven performance across diverse currencies, climates, and quality standards.
Client relationships established through formal sovereign procurement processes.