High stability and recyclable cellulose-based fluorescent paper derived from waste bagasse for anti-counterfeiting

作者：Guo, Lei; Liu, Hongchen^*; Peng, Fang; Kang, Jian^*; Qi, Haisong^*

来源：Cellulose, 2022, 29(10): 5765-5778.

DOI：10.1007/s10570-022-04621-7

• Waste bagasse
• Fluorescent paper
• Hantzsch reaction
• Recyclable
• Stability
• Anticounter feiting

Developing fluorescent paper-based materials with recyclable, environmental friendly, excellent stable and uniform performances are still an urgent challenge at present. Herein, a simple, green, and high-efficiency method for the fabrication of high stability and recyclable cellulose-based fluorescent paper from waste bagasse via Hantzsch reaction is proposed. Compared to the pristine paper, the surface modification showed little effect on the morphology, mechanical properties, thermal performance and appearance. Meanwhile, the good writing and printing ability of the paper still remained. The prepared paper showed excellent fluorescence performance, which is very stable even treated with acidic, alkaline, and different solvents for 24 h. It can be processed into different security patterns. What's more, this strategy could be extended by using other compositions with aldehyde groups. Considering their functional and recyclable features, as well as the convenient and efficient fabrication process, our fluorescent papers hold great potential to be applied in many fields such as anti-counterfeiting. @@@ [GRAPHICS] @@@ .