EP 1048760 A1 20001102 - Production process of multisegmented filaments or fibres, and resulting filaments or fibres and textile surfaces
Title (en)
Production process of multisegmented filaments or fibres, and resulting filaments or fibres and textile surfaces
Title (de)
Verfahren zur Herstellung von multisegmentierten Flächen oder Fasern sowie von daraus resultierenden Fäden oder Fasern und textilen Oberflächen
Title (fr)
Procédé de fabrication de filaments ou de fibres multisegmenté(e)s, ainsi que filaments ou fibres et surfaces textiles résultants
Publication
Application
Priority
FR 9902663 A 19990302
Abstract (en)
[origin: FR2790487A1] Polymer material(s) (1) forced through separate orifices (On, Om) of a spinneret or extrusion die, produce two or more elementary filaments (3). Orifices occupy one or more groups. Filaments from a group are assembled by prompt adhesion, on contact. A resultant, single-filament assembly (4), has a multi-segment cross section in which mixing of phases is limited or non-existent. Filaments are consolidated and stretched before further treatment and manipulation, which will produce: fibers, reels of filaments, cords or nonwoven cloth produced in a direct route. An Independent claim is included for the spinneret or orifice plate used and constructed in accordance with the claimed method. In addition, multisegment filament or fiber as described, is claimed. A further claim concerns nonwoven fabric, produced by direct fabrication in accordance with the claims. Preferred features: Extrudate emerges from orifices as a bulb-shapes (Bn, Bm). Bulbs contact. Arithmetic relationships are provided for suitable hole diameters and their relative arrangements in accordance with the foregoing provisions. The shape of sections, their dimensions and dispositions relative to the spinning orifices of the same group, are determined from the corresponding parameters and other properties of the multisegment and/or composite product (4) itself. Orifices of a group, are fed the same polymer, or by different polymers. Adherent contact between filaments from adjacent orifices of a group is differentiated continuously or intermittently. Bulb shape is varied for differentiation or shift in adherent contact. A dependent claim is included for a nonwoven textile, in which the multisegment fibers are treated physically or chemically to separate them, at least in part, into the elementary filaments first produced.
Abstract (de)
Die vorliegende Erfindung hat zum Gegenstand ein Verfahren zur Herstellung von multisegmentierten Fäden oder Fasern und/oder zusammengesetzten Strukturen, sowie dadurch gewonnener Fäden oder Fasern und einer textilen Oberfläche. Verfahren, das dadurch gekennzeichnet ist, daß es darin besteht, das polymere Material oder die polymeren Materialien (1, 1') unter angepassten rheologischen Bedingungen in eine Spinndüse (2) zu leiten, sodann dieses Polymer oder diese Polymere durch Filierungs- oder Extrusionsöffnungen (On, Om) zu extrudieren, die voneinander getrennt, aber in einer Gruppierung oder in mehreren Gruppierungen angeordnet sind, um einen Satz oder mehrere Sätze von mindestens zwei Elementarfäden (3, 3') zu formen, und sodann von diesen durch Adhäsionskontakt die verschiedenen aus jeder Gruppierung (G) der Öffnungen (On, Om) herausquellenden Elementarfäden (3, 3') in einen Faden (4) mit multisegmentiertem Querschnitt pro Gruppierung bei begrenzter oder inexistenter Phasenmelange zu vereinigen und schließlich die resultierenden Fäden (4) zu konsolidieren und zu strecken, bevor sie ihrer nachfolgenden Bearbeitung und/oder Behandlung, insbesondere zum Zweck der Herstellung von z. B. Fasern, Fadenspulen, Kabel oder nichtgewebter Vliese auf direktem Weg zugeführt werden. <IMAGE>
IPC 1-7
IPC 8 full level
D01D 5/30 (2006.01); D01D 5/24 (2006.01); D01D 5/253 (2006.01); D01D 5/32 (2006.01); D04H 3/016 (2012.01); D04H 3/018 (2012.01); D04H 3/10 (2012.01)
CPC (source: EP)
D01D 5/24 (2013.01); D01D 5/253 (2013.01); D01D 5/32 (2013.01); D04H 3/016 (2013.01); D04H 3/018 (2013.01); D04H 3/10 (2013.01)
Citation (applicant)
FR 7420254 A 19740610
Citation (search report)
- [XY] EP 0088744 A2 19830914 - MONSANTO CO [US]
- [XY] DD 50093 A
- [X] DE 536574 C 19311027 - SAMUEL WILD DR
- [X] FR 1576284 A 19690725
- [Y] EP 0814188 A1 19971229 - FREUDENBERG CARL FA [DE]
Designated contracting state (EPC)
DE ES FR GB IT NL
DOCDB simple family (publication)
FR 2790487 A1 20000908; FR 2790487 B1 20010420; BR 0000719 A 20010130; CA 2300583 A1 20000902; CA 2300583 C 20040113; CN 1233893 C 20051228; CN 1265435 A 20000906; EP 1048760 A1 20001102; JP 2000248420 A 20000912; TW 592221 U 20040611; ZA 200001006 B 20011129
DOCDB simple family (application)
FR 9902663 A 19990302; BR 0000719 A 20000302; CA 2300583 A 20000229; CN 00105311 A 20000301; EP 00103290 A 20000218; JP 2000055455 A 20000301; TW 93201280 U 20000314; ZA 200001006 A 20000229