A PROCESS FOR THE PRODUCTION OF BONDED NON WOVEN FIBRE FLEECES

1300813 Fleece of composite fibres FARBENFABRIKEN BAYER AG 13 March 1970 [15 March 1969] 12124/70 Heading D1R A bonded non-woven fleece or mat consists of or contains synthetic fibres, or mixtures of synthetic and natural fibres, which contains at least 30% by weight of two component fibres having a...

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Bibliographische Detailangaben
Hauptverfasser:	KARL ARNOLD WEBER, WOLFRAM VON LANGENTHAL, HARRY KUBITZEK, HORST WILSCHINSKY, MANFRED SALAMON
Format:	Patent
Sprache:	eng
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:	1300813 Fleece of composite fibres FARBENFABRIKEN BAYER AG 13 March 1970 [15 March 1969] 12124/70 Heading D1R A bonded non-woven fleece or mat consists of or contains synthetic fibres, or mixtures of synthetic and natural fibres, which contains at least 30% by weight of two component fibres having a sheath/core structure, the core component being a polyamide-6 and the sheath component being a copolyamide of amiriocaproic acid and aminoundecanoic acid, the sheath component having a softening range at least 20‹C below that of the core component. The fleece is produced by heating an unbonded fleece at a temperature in the softening range of the sheath component which becomes plastic and acts as a binder while the core is unchanged. The fleece may be formed by a carding machine. The two-component fibres may be mixed with fibres having a crimp. An example is given of them mixed with fibres of carbonised wool. Heating may be effected by calendering at a temperature between 100 and 150‹C. The fleece may be stitched before being autogeneously bonded.