Preparation and Application of Waterproof Polypropylene Nonwoven Fabrics for Grape Bagging

Bags of nonwoven fabrics with good air or water permeability are widely used in fruit agriculture due to their porosity. However, vegetables or fruit in bags often rot, a problem caused by the water permeability of the bags in high-moisture environments. Therefore, to improve the water repellency of polypropylene (PP) nonwoven fabric bags for fruit, a water-repellent treatment was applied by the surface deposition of a film composed of a water-repellent agent and a crosslinking agent. The effect of the waterproof bags made of PP spun-bonded nonwoven fabric on the grape growth microenvironment was investigated. This study provided technical inspiration for the development of related plant protection products using nonwoven engineered after-treatments.