WASSERSTRAHLENVERFESTIGTER SPINNVLIESSTOFF MIT KONTROLLIERBAREM BAUSCH UND DURCHLÄSSIGKEIT

A process for hydraulically needling a web of staple fibers into an unbonded flash spun web made of continuous plexifilaments to form a spunlaced nonwoven fabric. The web of staple fibers is positioned against the unbonded flash spun web and then hydraulically needled such that the staple fibers are...

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Bibliographische Detailangaben
Hauptverfasser:	SIEMIONKO, ROGER KEITH, HOCKESSIN, DE 19707-9184, US, LIM, HYUN SUNG, CHESTERFIELD, VA 23832, US, VINCENT, JAMES RALPH, OLD HICKORY, TN 37138, US, PETERSON, ROBERT HOWE, HENDERSONVILLE, TN 37075-2538, US
Format:	Patent
Sprache:	ger
Schlagworte:	BRAIDING COTTON-WOOL FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS KNITTING LACE-MAKING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL NON-WOVEN FABRICS PERFORMING OPERATIONS TEXTILES TRANSPORTING TRIMMINGS WADDING
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Beschreibung
Zusammenfassung:	A process for hydraulically needling a web of staple fibers into an unbonded flash spun web made of continuous plexifilaments to form a spunlaced nonwoven fabric. The web of staple fibers is positioned against the unbonded flash spun web and then hydraulically needled such that the staple fibers are embedded into and entangled with the unbonded flash spun web to form a spunlaced nonwoven fabric. Optionally, the spunlaced nonwoven fabric can be thermally bonded to maintain or increase the permeability of the fabric. Thermal bonding can be used to control the level of permeability depending on the end-use desired. Spunlaced nonwoven fabrics made by the inventive process are particularly useful in filtration applications (e.g., vacuum cleaner bags) when thermal bonding is employed and as bulky, downproof and featherproof barrier liners for garments, sleeping bags, pillows, comforters and the like when thermal bonding is not employed.