With the advancement of the national "dual carbon" strategy, the flexographic printing industry is confronted with the severe challenge of VOCs emissions exceeding the standard. This study aims to develop a biodegradable eco-friendly pressure-sensitive adhesive substrate and optimize its water-based printing process to achieve an organic combination of green production and efficient printing. By modifying PET substrates with corn starch, a biodegradable eco-friendly pressure- sensitive adhesive substrate with a biodegradability rate as high as 65% (within 180 days) was prepared. Meanwhile, a water-based adhesive with excellent compatibility with the substrate was synthesized using a specific formula. In terms of the water-based printing process, by adjusting the ink formula, transforming the drying system, and introducing a registration error compensation mechanism, the printing speed was increased to 300m/min, and the printing scrap rate was significantly reduced to 1%, with VOCs emissions controlled within 28g/L, far below the national standard. The experimental results indicate that the eco-friendly pressure-sensitive adhesive material and its water-based printing process not only possess good environmental performance but also significantly enhance printing efficiency and reduce production costs. They have broad application prospects and can be widely promoted in various fields such as food packaging and medical labels, providing strong support for the green transformation of the printing industry.

Ding Quanzhen. Preparation of Biodegradable Eco-Friendly Pressure-Sensitive Adhesive Materials and Their Compatibility with Water-Based Printing Processes. Academic Journal of Engineering and Technology Science (2025), Vol. 8, Issue 4: 150-155. https://doi.org/10.25236/AJETS.2025.080419.

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