Detailed Explanation of the National Quality Implementation Standards for Polypropylene Nonwoven Fabrics

The national quality implementation standards for polypropylene nonwoven fabrics cover several key performance indicators, including mass per unit area (e.g., 80-100 g/m²), thickness (0.1-0.5 mm), tensile strength (≥30 N/5 cm in the longitudinal direction), tear strength (≥10 N), and air permeability (≥200 L/m²·s). These parameters directly impact the durability and functionality of nonwovens in applications such as medical protection and agricultural mulch. Strict testing methods, such as GB/T 24218.1 for measuring mass per unit area and ISO 9073-3 for evaluating tensile properties, ensure data comparability. These standards not only provide manufacturers with guidance for process optimization (e.g., improving meltblowing uniformity), but also help users select products suitable for specific applications such as packaging filtration and sanitary materials.