LOW GLOBAL WARMING POTENTIAL FIBER AND ITS MANUFACTURING PROCESS

The invention refers to a novel man-made multicomponent filament of the polymer fiber with significantly reduced Global Warming Potential (GWP) value and to its manufacturing process. The filament is comprised of at least one core component comprised of a mechanically regenerated thermoplastic polymer waste material originating from post-industrial waste and/or post-consumer waste, and a of at least one sheath component comprised of a virgin or a virgin-equivalent chemically regenerated thermoplastic polymer material. The filament and fiber is produced by a standard bicomponent spinning technology. The GWP value of the core component is at least 30% lower than the GWP value of the sheath component and at least 30% lower than the GWP value of any other standard core component used in the filament or fiber produced from the corresponding materials presently on the market. The low GWP value of the core component used in the filament of the polymer fiber of the invention thus contributes to the low GWP value of the overall fiber. The filament/fiber of the invention is intended for use in apparel, flooring, air bag, parachute, tires, transport belts, medical, and other technical applications.