UNIFORM MELTBLOWN FIBROUS WEB AND METHODS AND APPARATUS FOR MANUFACTURING

Multilayer meltblown fibrous webs, as well as apparatus and methods of forming the webs. The webs are produced on a rotating collector that also moves parallel to its longitudinal axis. The webs are thus formed in a helical process, and the resulting tubular web is separated in a direction parallel...

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Bibliographische Detailangaben
Hauptverfasser:	ERICKSON STANLEY C, DYRUD JAMES F, BERRIGAN MICHAEL R, ERICKSON LUTHER E
Format:	Patent
Sprache:	eng ; pol
Schlagworte:	ACCESSORIES BRAIDING CONVEYING COTTON-WOOL DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS FIRE-FIGHTING FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR HANDLING THIN OR FILAMENTARY MATERIAL HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES HUMAN NECESSITIES KNITTING LACE-MAKING LAUNDERING LIFE-SAVING MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS NON-WOVEN FABRICS OUTERWEAR PACKING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PROTECTIVE GARMENTS SEPARATION STORING TEXTILES TRANSPORTING TREATMENT OF TEXTILES OR THE LIKE TRIMMINGS WADDING WEARING APPAREL
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Beschreibung
Zusammenfassung:	Multilayer meltblown fibrous webs, as well as apparatus and methods of forming the webs. The webs are produced on a rotating collector that also moves parallel to its longitudinal axis. The webs are thus formed in a helical process, and the resulting tubular web is separated in a direction parallel to a helix angle. By separating the tubular web in a direction parallel to the helix angle, a flat multilayer meltblown fibrous web is provided that allows for incorporation of feathered edges formed during the article's manufacture.