Yuzhimu PET-core PP-sheath Nonwoven Fabric: Stiffness, Stability & Versatility Combined

This distinctive Yuzhimu non-woven fabric can be produced using what are known as bi-component yarns—a type of composite yarn engineered with a rigid core filament made from a high-melting-point polymer, encased in a sheath of lower-melting-point polymer.

Multiple parallel arrays of these yarn bundles are deposited onto a metallic mesh, creating a precisely structured non-woven web. The web is then subjected to thermal bonding: heating it to a temperature that melts only the low-melting sheath polymer. This process fuses the countless filament intersections together, resulting in a spunlaid non-woven material that boasts exceptional rigidity, an open porous structure, and excellent dimensional stability, along with a suite of unique performance characteristics.

The two discrete stages—spinning the bi-component polymer yarns, followed by laying down and consolidating the filaments into a non-woven web—create a highly versatile manufacturing platform. This platform enables the integration of yarns with diverse functional properties, catering to a broad range of end uses such as primary backings for tufted carpets, support media for filtration systems, and substrates for coatings and laminated polymer products.