中文The European Central Bank spares no expense when it comes to printing banknotes. Production costs per unit are irrelevant when the nominal value is so high. Commercial packaging, however, operates on a completely different scale, where fractions of a penny on the press determine profitability. Protecting brands and pharmaceuticals requires a balance between uncompromising security and cost-effective serial production. Five key technologies for 2026 demonstrate how printers achieve that balance in practice.
The European Central Bank is pushing ahead with one of the most ambitious branding and security projects of the decade: the first complete redesign of euro banknotes since their introduction. An independent jury selected ten final design concepts from over 1,200 submissions, prioritising cultural, social and ecological themes. Proposed concepts range from “European Culture”, featuring portraits of Marie Curie, Leonardo da Vinci and Ludwig van Beethoven, to nature-focused designs such as “Rivers and Birds”, which highlights native species including the avocet. Functional innovations matter as much as aesthetics: substrates will last longer via concepts like “Green LongLife”, tactile features for visually impaired citizens are being overhauled, and digital verification via smartphone is under active development.
For central banks, unit production costs are a secondary concern when introducing high-end features. Commercial print operations for pharmaceuticals, cosmetics, ticketing, certificates and premium consumer goods face a very different reality. Adding security features to packaging or industrial labels requires strict financial prudence. The cost of applying a feature must always be proportionate to the value of the item being protected. If security eats into the product margin, the commercial logic falls apart.
So how can printers bring banknote-level security to cost-driven, scalable press rooms? Examining five core security printing technologies in 2026 reveals the balance between technical capability and operational reality.
First, serialisation and variable security barcodes. Usage is very high and an industry standard. Unique identification is essential for track-and-trace logistics and supply chain safety. Complex 2D codes protect pharmaceutical cartons under the EU Falsified Medicines Directive and secure luxury goods labels. DataMatrix and QR formats encode large volumes of data on tiny surfaces in a tamper-proof, easy-to-read format. Implementation costs are low to moderate for digital printing; since the code varies pack to pack, variable data suits high-speed inkjet, toner or laser. The real bottleneck is inline quality inspection: cameras must capture, decode and grade every pixel pattern against ISO/IEC standards in real time, ejecting unreadable or duplicate codes instantly.
Second, speciality inks including UV fluorescence, infrared and magnetic formulations. Usage is high and widespread. Chemically modified inks enable automated checks in sorting centres, customs posts and ATMs. UV fluorescent inks absorb invisible UV and re-emit visible light, with dual-wavelength versions changing colour by light source. Magnetic inks allow banknotes and cheques to be read automatically at speed. Costs are moderate for both analogue and digital, but pigment size and density alter ink rheology; abrasive particles wear plates and can clog inkjet nozzles, while UV fluorescent inks compete with photoinitiators for curing light. For pharma, cosmetic or food packaging, formulations must meet low-migration rules while remaining recyclable.
Third, microtext and guilloches. Usage is moderate. Mathematically generated interwoven line patterns paired with fonts smaller than 0.2 mm prevent unauthorised copying, since standard scanner sensors break continuous lines into dot rasters. Central banks use costly intaglio at pressures exceeding 80 tonnes; commercial printers rely on high-resolution offset or precision digital at 1200 dpi or higher. Managing dot gain and registration across multi-colour line runs is the core challenge.
Fourth, optically variable devices and holograms. Usage is low, because the process is demanding and costly. Kinegrams change motif or colour with viewing angle, giving consumers a device-free verification method for cosmetics and luxury packaging. Production of high-security masters relies on electron-beam lithography writing nanoscale gratings, later electroformed into nickel shims, applied via hot or cold foil. Digital embellishment units now apply UV varnish without tools, but controlling three-dimensional fluid dynamics to build layers from 21 to 116 micrometres in a single pass demands precise nozzle control.
Fifth, forensic markers such as synthetic DNA and microscopic diamond particles. Usage is very low and niche, providing definitive legal proof. These are blended into coatings at ppm or ppb levels. Real-time inline verification is impossible; testing requires laboratory PCR assays or Raman spectrometers. Ensuring marker survival through aggressive three-roll-mill dispersion is a significant engineering challenge.
The era of passive, isolated security features is closing. Driven by the EU’s Ecodesign for Sustainable Products Regulation, digital product passports will become mandatory in stages from 2026/2027, covering batteries from 2027 and textiles from 2028. Research into Physical Unclonable Functions uses the random fibre pattern of paper as a cryptographic signature scanned by smartphone. With ISO standards such as 14298 and 22381 governing them, physical print craft and digital cryptography are merging into an interconnected anti-counterfeiting ecosystem.
Source: drupa blog, published 2026.
