Preparation and Anti-counterfeiting Performance of Biomass-derived Carbon Dots Fluorescent Inks

DENG Yafeng; CHANG Pengcheng; LI Min; CHEN Weiying; HUANG Shaoyun

doi:10.19554/j.cnki.1001-3563.2026.03.004

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Packaging Engineering ›› 2026, Vol. 47 ›› Issue (3) : 36-43. DOI: 10.19554/j.cnki.1001-3563.2026.03.004

Advanced Materials

Preparation and Anti-counterfeiting Performance of Biomass-derived Carbon Dots Fluorescent Inks

DENG Yafeng^*, CHANG Pengcheng, LI Min, CHEN Weiying, HUANG Shaoyun^*

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Abstract

The work aims to utilize composite fluorescent powders of biomass-derived fluorescent carbon dots (CDs) and polyvinylpyrrolidone (PVP) as colorants to prepare red and blue fluorescent inks with effective anti-counterfeiting performance and investigate the printability of these inks on non-fluorescent paper substrates. Firstly, red and blue fluorescent biomass-derived carbon dots (R-CDs and B-CDs) were prepared respectively with wintergreen leaves, lemon juice and onion juice through a one-step microwave method. These CDs were combined with PVP-K60 and PVP-K30 respectively to prepare fluorescent powders. Subsequently, fluorescent anti-counterfeiting ink was prepared with the fluorescent powders as pigments and water-based acrylic resin as the binder, and the fluorescence anti-counterfeiting performance and printability of the ink were explored. Both R-CDs and B-CDs exhibited stable red and blue fluorescence in solution and solid states under UV light. Based on performance tests of viscosity, dryness, transfer rate, gloss of prints, and rub resistance, the fluorescent ink demonstrated favorable printability. In conclusion, both the biomass-derived fluorescent CDs and their composite powders with PVP exhibit excellent fluorescence properties, and have good potential for application in fluorescence anti-counterfeiting printing.

Key words

biomass-derived carbon dots / fluorescent anti-counterfeiting ink / printability / solid-state fluorescent

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DENG Yafeng, CHANG Pengcheng, LI Min, CHEN Weiying, HUANG Shaoyun. Preparation and Anti-counterfeiting Performance of Biomass-derived Carbon Dots Fluorescent Inks[J]. Packaging Engineering. 2026, 47(3): 36-43 https://doi.org/10.19554/j.cnki.1001-3563.2026.03.004

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