Packaging Security Technologies: The Role of Microdots, UV Printing and NFC Tags

Packaging security • Phygital trust • 2025

Invisible but verifiable security features have become integral to packaging design in the fight against counterfeits. Microdot printing, UV security patterns and NFC tags give physical products a digital trace, opening an era of phygital trust linking physical and digital verification.

B10 CounterShield™ • 2025 • Reading time: approximately 8 minutes

1. Phygital trust: physical and digital verification combined

Phygital trust aims to verify products through digital data and physical components together. Users and systems can then confirm authenticity simultaneously.

“Trust rests on an uninterrupted chain from packaging surface to database.”

2. Microdot Technology

A microdot adds a security layer using printed dots or nanoparticles one thousandth of a millimetre in size. These dots:

• carry a unique serial number for each production batch;
• can be read under UV light or a microscope;
• enable scannable identity verification throughout the supply chain.

Industrial use: Microdots are among the most durable technologies used to detect counterfeits, from automotive spare parts to cosmetics packaging.

3. UV security printing

• UV printing contains patterns or logos invisible in normal light that appear only under UV.
• Special pigments are used for different wavelengths, such as 365 nm UV-A.
• Resists photocopying, scanning and visual cloning.

This printing allows rapid visual verification in the supply chain, particularly in production and storage areas.

4. NFC tags and digital identity

NFC (Near Field Communication) tags create a unique digital identity for each product. By scanning the tag with a smartphone, users can:

• access the authenticity certificate;
• view production date, distribution channel and warranty details;
• open a blockchain-based verification page.

Implementation example: An NFC tag works with a GS1 code or QR certificate to associate product identity with a digital certificate.

5. A multilayer security approach

Layer	Technology	Verification Type
1. Visual	UV printing, holograms and security ink	By human sight
2. Covert	Microdots, microprinting and magnetic ink	Laboratory or device inspection
3. Digital	NFC, QR and blockchain certificates	By mobile device or database

“Trust is built in layers, from visible to invisible.”

6. Phygital verification process

1. The user scans an NFC tag or QR code.
2. The system checks for a matching microdot or UV-print record.
3. Verification uses the hash value in the database.
4. The result is reported as genuine, suspicious or invalid.

Additional security: Combining Cloudflare Access, a blockchain timestamp and a UV pattern ID makes reproducing counterfeits impossible.

7. Packaging security integration recommendations

• Production-line integration: Integrate microdot or NFC labelling directly into packaging.
• Blockchain connection: Associate every physical label with a digital certificate.
• Consumer verification interface: Provide immediate verification and reporting through mobile scans.

“Phygital security is a new physical proof of brand reputation.”

Strengthen your packaging security digitally.
B10 CounterShield™ digitises packaging security with microdot, UV and NFC solutions from production line to consumer.

Request phygital security consulting Tags: packaging security • microdots • UV printing • NFC tags • phygital trust • blockchain • B10 Digital Agency