Invisible Security Marks and Their Usage in IoT

Overview

NAMI has developed novel color changing and fluorescent security marks for product authentication.

  • Invisible Security Marks and Their Usage in IoT 0
  • Invisible Security Marks and Their Usage in IoT 1
Commercialisation opportunities
Non-exclusive licensing
Problem addressed

Novel technologies are in need to combat ever-growing counterfeit consumer goods. Unlike commercial color changing materials that require UV light source to trigger, NAMI’s color changing materials can be easily triggered by visible light source such as flashlight on mobile phone.

Innovation
  • By adopting novel ink formulation, inkjet-printed security marks like QR codes and smart tags being revealed by visible light source have been realized. By using a mobile device, the secret QR code is colorized and scannable. 
  • This technology can be used for IoT applications such as connection to webpages, cloud platform and real-time database.
  • NAMI has also developed a new class of luminescent ink showing different fluorescent colors upon irradiation by different kinds of light sources, offering a higher level anti-counterfeiting.
Key impact
  • Compatible with various substrates
  • Applicable with various printing methods
  • Excitable with UV-free light source, e.g. mobile flashlight
  • Meet international chemical safety standards
Award
  • Silver Medal at the “2021 Geneva International Exhibition of Inventions”
Application
  • Highly secret anti-counterfeit features
  • Rewritable paper
  • IoT product packaging
  • Interactive toys
Hong Kong Applied Science and Technology Research Institute (ASTRI)

Hong Kong Applied Science and Technology Research Institute (ASTRI) is founded in 2000 by the Government of the Hong Kong Special Administrative Region. As Hong Kong’s largest government-funded research and development centre, ASTRI is a key force and super connector driving innovation and technology advancement in Hong Kong, the Greater Bay Area, and the global innovation ecosystem. This role is strengthened through its merger with Nano and Advanced Materials Institute (NAMI).

Committed to bringing high impact research from lab to market, ASTRI advances interdisciplinary, market driven R&D that delivers practical innovations for industry and meaningful benefits for society.

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