What Is Non-woven Fabric Called

Non-woven fabric encompasses various types, with the two primary categories being NWF in polypropylene (PP) and NWF in Spunbond-Meltblown-Spunbond (SMS), each distinguished by the manufacturing process employed.

NWF in polypropylene (PP) is fabricated from polypropylene, a thermoplastic polymer renowned for its versatility and durability. This type of non-woven material is crafted from soft textured plastic fibers, which undergo a fusion process utilizing ultrasound and steam. During manufacturing, the polypropylene fibers are subjected to high-frequency vibrations generated by ultrasound equipment, causing them to intertwine and bond together seamlessly. Subsequently, steam is applied to further consolidate the fiber network, resulting in a cohesive and resilient fabric structure. The end product exhibits exceptional strength, fluid resistance, and breathability, making it well-suited for a wide array of applications ranging from surgical gowns to automotive interiors.

In contrast, NWF in Spunbond-Meltblown-Spunbond (SMS) integrates a more intricate production process involving multiple stages. Initially, polypropylene polymer pellets are extruded into continuous filaments through a spinning process, forming a web of interconnected fibers known as spunbond. Subsequently, a layer of fine microfibers is introduced through the meltblown process, where the polymer is melted and extruded through high-velocity air streams, resulting in the formation of ultra-fine fibers that intertwine with the spunbond layer. Finally, another layer of spunbond is added atop the meltblown layer, encapsulating the microfibers within the fabric structure. This composite material offers enhanced barrier properties against particles, liquids, and microorganisms, making it particularly well-suited for medical protective apparel, filtration media, and hygiene products.

In summary, non-woven fabric encompasses a diverse range of materials, with NWF in polypropylene and NWF in SMS representing two prominent variants distinguished by their manufacturing processes and properties. Whether crafted through the fusion of polypropylene fibers or the integration of spunbond and meltblown layers, non-woven fabrics continue to revolutionize various industries with their versatility, performance, and cost-effectiveness.