SPUNBOND RECYCLED POLYPROPYLENE NONWOVEN AND METHOD OF MAKING THE SAME

A process for making a spunmelt nonwoven web including the steps of providing a mixture of recycled polypropylene, extruding the recycled polypropylene mixture to form a molten recycled polypropylene mixture, filtering the molten recycled polypropylene mixture through a filter to form recycled polyp...

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Bibliographische Detailangaben
Hauptverfasser: John, C. PARSONS, Karthik RAMARATNAM, David, John PUNG, Anna, Elizabeth MACURA, Eric, Bryan BOND
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A process for making a spunmelt nonwoven web including the steps of providing a mixture of recycled polypropylene, extruding the recycled polypropylene mixture to form a molten recycled polypropylene mixture, filtering the molten recycled polypropylene mixture through a filter to form recycled polypropylene filtrate, dosing the recycled polypropylene filtrate into the spunmelt production line by an amount of 80% to 100% by weight, passing the recycled polypropylene filtrate through at least one spinneret of the spunmelt production line to form filaments at a spinning speed of greater than 1200 meters per minute, cooling and drawing the filaments, and depositing the filaments on a moving belt to form at least one layer of the spunmelt nonwoven web made up of 80% by 100% by weight of recycled polypropylene fibers.