The effect of process parameters on the quality of needle-punched nonwoven components used in the automotive industry.

Ethics Ref#:2022FEBEREC-STD-076This study examined how different process parameters affect the quality of needle-punched nonwoven components used in the automotive sector. This research aims to offer valuable insights for automotive manufacturers by exploring the correlation between process parameters and the quality of needle-punched nonwovens through experiments, ultimately helping to enhance production processes and improve product quality. Results showed a proportional relationship between weight and stroke frequency, with increased stroke frequency leading to higher weight. Thickness decreased with increased needle penetration depth, due to enhanced fibre interlocking. Tensile strength increased with higher stroke frequency, needle penetration, and weight, while elongation percentages in the machine direction decreased with increased needle penetration. The burn rate of nonwoven fabric was strongly influenced by weight and surface finishes, with polyester fibres demonstrating self-extinguishing properties. Additionally, the binder used improved durability and abrasion resistance by reducing fabric bearding, while no significant dimensional changes were observed after heat exposure.