D - Textiles – Paper – 04 – H
Patent
D - Textiles, Paper
04
H
D04H 13/00 (2006.01) B32B 5/26 (2006.01)
Patent
CA 2154669
A nonwoven (1) comprising two outer fibre layers (3, 4) and at least one inner fibre layer (2) having a different composition from that of the outer layers (3, 4). The nonwoven (1) comprises structural fibres (7, 8) and binding fibres (5, 6), said binding fibres (5, 6) at least partially consisting of a polymer with a lower melting point than the structural fibres (7, 8). Said nonwoven (1) is densified by needling on both sides to a given depth while leaving an undensified central region. A method for producing the nonwoven is also disclosed.
L'invention concerne un non-tissé (I) ccomportant deux couches de fibres extérieures (3, 4) et au moins une couche de fibres intérieure (2) de composition différente de celle des couches extérieures (3, 4), le non-tissé (1) comportant des fibres constructives (7, 8) et des fibres liantes (5, 6), les fibres liantes (5, 6) étant composées au moins partiellement d'au moins un polymère dont le point de fusion est inférieur à celui des fibres constructives (7, 8), le non-tissé (1) suivant l'invention est densifié par aiguilletage de part et d'autre jusqu'à une pofondeur déterminée, une zone centrale non densifiée par aiguilletage subsistant. L'invention concerne également un procédé de fabrication d'un tel non-tissé.
Libeltex N.v./s.a.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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