METHOD OF FORMING A 3-DIMENSIONAL FIBER INTO A WEB

METHOD OF FORMING A 3-DIMENSIONAL FIBER INTO A WEB

A method includes the steps of co-extruding a first component and a second component. The first component has a recovery percentage R1 and the second component has a recovery percentage R2, wherein R1 is higher than R2. The first and second components are directed through a spin pack to form a plura...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KRESSNER, BERNHARDT, EDWARD, WIDEMAN, GREGORY, JAMES, TOPOLKARAEV, VASILY, ARAMOVICH
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS
BRAIDING
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS
COTTON-WOOL
FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS
KNITTING
LACE-MAKING
MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL
NATURAL OR ARTIFICIAL THREADS OR FIBRES
NON-WOVEN FABRICS
SPINNING
TEXTILES
TRIMMINGS
WADDING
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Beschreibung
Zusammenfassung:A method includes the steps of co-extruding a first component and a second component. The first component has a recovery percentage R1 and the second component has a recovery percentage R2, wherein R1 is higher than R2. The first and second components are directed through a spin pack to form a plurality of continuous, molten fibers. The molten fibers are then muted through a quenching chamber to form a plurality of continuous cooled fibers. The coiled fibers are then routed through a drawing unit to form a plurality of continuous, solid linear fibers. Each of the solid fibers is then stretched by at least 50 percent before it is allowed to relax. The relaxation step forms the linear fibers into a plurality of continuous 3-dimensional fibers each having a coiled configuration over at least a portion of its length. The continuous 3-dimensional, coiled fibers are then deposited onto a moving support to form a web.