Green Surface Engineering of Spun-Bonded Nonwovens Using Polyphenol-Rich Berry Extracts for Bioactive and Functional Applications

This study investigates the enhancement of spun-bonded nonwovens using polyphenol-rich extracts from blueberries and elderberries, applied via aerographic spraying to BIOPLAST® fabrics. The treatment significantly improves mechanical properties, with a 38% increase in tensile strength and a 50% increase in elongation at break, while also making the surface more hydrophilic. The modified nonwovens exhibit a controlled release of polyphenolic compounds over 72 hours, suitable for biomedical, healthcare, and cosmetic applications. The approach is environmentally friendly and aligns with green chemistry principles, offering a sustainable method to introduce bioactivity into technical textiles.