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1. (EP2279293) CONJUGATE FIBER FOR AIR-LAID NONWOVEN FABRIC MANUFACTURE AND METHOD FOR MANUFACTURING A HIGH-DENSITY AIR-LAID NONWOVEN FABRIC

Office : European Patent Office
Application Number: 09750677 Application Date: 19.05.2009
Publication Number: 2279293 Publication Date: 02.02.2011
Publication Kind : B1
Designated States: AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, TR
Prior PCT appl.: Application Number:JP2009059481 ; Publication Number: Click to see the data
IPC:
D04H 1/50
D01F 8/06
D04H 1/42
D04H 1/4291
D TEXTILES; PAPER
04
BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
H
MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING
1
Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
40
from fleeces or layers composed of fibres without existing or potential cohesive properties
44
the fleeces or layers being consolidated by mechanical means, e.g. by rolling
50
by treatment to produce shrinking, swelling, crimping or curling of fibres
D TEXTILES; PAPER
01
NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING
F
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES, OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
8
Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
04
from synthetic polymers
06
with at least one polyolefin as constituent
D TEXTILES; PAPER
04
BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
H
MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING
1
Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
40
from fleeces or layers composed of fibres without existing or potential cohesive properties
42
characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
D TEXTILES; PAPER
04
BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
H
MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING
1
Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
40
from fleeces or layers composed of fibres without existing or potential cohesive properties
42
characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
4282
Addition polymers
4291
Olefin series
CPC:
D04H 1/732
D01D 5/32
D01F 8/06
D04H 1/06
D04H 1/4382
D04H 1/4391
D04H 1/50
D04H 1/541
D06C 7/00
D10B 2321/022
Y10T 428/2924
Applicants: ES FIBERVISIONS CO LTD
ES FIBERVISIONS HONG KONG LTD
ES FIBERVISIONS LP
ES FIBERVISIONS APS
Inventors: MIYAUCHI MINORU
NISHITANI TAKA UKI
TERANAKA MASASHI
Priority Data: 2008131090 19.05.2008 JP
2009059481 19.05.2009 JP
Title: (DE) KONJUGATFASER ZUR HERSTELLUNG LUFTGELEGTER VLIESFASERN UND VERFAHREN ZUR HERSTELLUNG EINER LUFTGELEGTEN VLIESFASER VON HOHER DICHTE
(EN) CONJUGATE FIBER FOR AIR-LAID NONWOVEN FABRIC MANUFACTURE AND METHOD FOR MANUFACTURING A HIGH-DENSITY AIR-LAID NONWOVEN FABRIC
(FR) FIBRE CONJUGUÉE POUR LA FABRICATION DE TISSU NON-TISSÉ POSÉ À L'AIR ET PROCÉDÉ POUR LA FABRICATION D'UN TISSU NON-TISSÉ POSÉ À L'AIR DE HAUTE DENSITÉ
Abstract:
(EN) The conjugate fiber for air-laid nonwoven fabric manufacture is a heat-fusible conjugate fiber in which a first component comprising an olefinic thermoplastic resin is conjugated with a second component comprising an olefinic thermoplastic resin having a melting point higher than that of the first component. The conjugate form is such that the centers of gravity of the conjugate components are mutually different in the fiber cross section, the fiber has a single-yarn fineness of 1 to 10 dtex, a fiber length of 3 to 20 mm, and a planar zig-zag crimp whose crimp shape index (actual length of short fiber/distance between both ends of short fiber) ranges from 1.05 to 1.60, and the web shrinkage upon thermal treatment at 145°C of a web obtained by an air-laid method is not lower than 40%.
(FR) L'invention porte sur une fibre conjuguée destinée à la fabrication de tissu non-tissé à l'air, laquelle fibre est une fibre conjuguée thermofusible dans laquelle un premier composant comprenant une résine thermoplastique oléfine est conjugué à un deuxième composant comprenant une résine thermoplastique oléfine ayant un point de fusion supérieur à celui du premier composant. La forme du conjugué est telle que les centres de gravité des composants du conjugué sont différents l'un de l'autre dans la section transversale de la fibre, la fibre ayant une finesse de fil unique de 1 à 10 dtex, une longueur de fibre de 3 à 20 mm, et une frisure en zigzag plan dont l'indice de forme de frisure (longueur effective de fibre courte/distance entre des deux extrémités de la fibre courte) est compris entre 1,05 et 1,60, et la rétraction de film lors du traitement thermique à 145°C d'un film obtenu par un procédé de pose à l'air n'est pas inférieure à 40 %.
Also published as:
AR071844US20110089593CN102037174KR1020110000756US20150330002WO/2009/142315