EP1210474A1 - Procede et dispositif pour produire un non-tisse composite servant a absorber et a retenir des liquides - Google Patents

Procede et dispositif pour produire un non-tisse composite servant a absorber et a retenir des liquides

Info

Publication number
EP1210474A1
EP1210474A1 EP00949462A EP00949462A EP1210474A1 EP 1210474 A1 EP1210474 A1 EP 1210474A1 EP 00949462 A EP00949462 A EP 00949462A EP 00949462 A EP00949462 A EP 00949462A EP 1210474 A1 EP1210474 A1 EP 1210474A1
Authority
EP
European Patent Office
Prior art keywords
layer
nonwoven
fibers
fleece
wood pulp
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00949462A
Other languages
German (de)
English (en)
Other versions
EP1210474B1 (fr
Inventor
Gianni G. Boscolo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Truetzschler Nonwovens GmbH
Albis SpA
Original Assignee
Fleissner GmbH
Albis SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fleissner GmbH, Albis SpA filed Critical Fleissner GmbH
Publication of EP1210474A1 publication Critical patent/EP1210474A1/fr
Application granted granted Critical
Publication of EP1210474B1 publication Critical patent/EP1210474B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—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 ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/08—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of fibres or yarns
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—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 ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—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 ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/04—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial fibres
    • D04H1/26—Wood pulp
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—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 ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4374—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—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 ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/498—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—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 ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/56—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—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 ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/732—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—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 ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/736—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged characterised by the apparatus for arranging fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—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 ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—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 ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H13/00—Other non-woven fabrics
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—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 ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/02—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling
    • D04H5/03—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling by fluid jet

Definitions

  • the invention relates to a method for producing a composite fleece for the absorption and storage of liquids or the like.
  • Consisting of a carrier fleece which is used for consolidation z. B. is hydrodynamically needled, and an applied to the solidified nonwoven cellulose layer such as wood pulp fibers, which is brought into firm contact with the nonwoven.
  • a method of this kind can be found in EP-B-0 540 041.
  • the carrier fleece is essentially not needled with water for consolidation, but rather to increase the liquid permeability of the carrier fleece.
  • the superabsorbent pulp is then applied to the needled nonwoven in one layer, both are brought into good bonding contact, and the composite nonwoven is then dried.
  • the invention has for its object to develop a method and a device necessary to carry out this method, with which such a loss of wood pulp can be avoided during the operation of the effective connection to the carrier fleece.
  • a thin intermediate layer made of a microfiber e.g. B. after the meltblown process, is applied and the layer of cellulose fibers is only applied to this intermediate layer and everything is connected to one another.
  • This connection then expediently again takes place with the hydrodynamic needling.
  • the intermediate layer newly present in such a product also advantageously serves as a barrier for the liquid to be absorbed by the product. Nevertheless, this barrier layer is not an airtight separating layer, which would prevent the breathability of the product.
  • EP 0 418 493 discloses the production of a composite nonwoven fabric solely from unconsolidated textile staple fibers or unconsolidated endless polymer fibers together with a layer of meltblown microfibers, and the hydrodynamic needling of these two layers to connect and consolidate the composite nonwoven. There, however, this combination is used to produce a soft, dry fleece with a higher strength. In addition, the fleece should be treated with water needling in such a way that it has an area of higher and lower strength.
  • the microfiber layer is intended to produce a separating layer for the wood pulp layer to be applied thereon, so that the wood pulp fibers are not sponged into the fibers of the carrier layer during consolidation by means of water needling and are therefore lost for the product to be produced, with consequent costs.
  • a fleece made of polyester and / or polypropylene fibers can be used as the carrier fleece.
  • This fleece is to be needled with water first, that is, to be consolidated. Then a thin layer of microfine fiber, which is less than 1 - 5 ⁇ m thick, is sprayed onto the nonwoven so stable and evenly distributed on the nonwoven.
  • the cooling finest Fibers in a layer with a weight of between 1 - 4 gr / m 2 , preferably 2 gr / m 2 combine to form a kind of film and nevertheless do not represent such an absolutely dense layer.
  • connection of this superabsorbent pulp layer with the carrier fleece covered by the intermediate layer of microfiber is then produced by means of water needling, the fine cellulose fibers now being no longer or only slightly able to be sponged by the carrier unit, that is to say the use effect of the product is retained.
  • a device for carrying out the method of the type according to the invention is shown in principle by way of example in the drawing.
  • the carrier fleece is to be produced from the polyester fibers and / or the polypropylene fibers.
  • the carrier fleece serves as a fleece laying device.
  • B. a card 1-4 or a spunbond system, which is not shown here.
  • the carding machine consists of a box feeder 1 with a shaker chute 2 arranged underneath, which transfers the fibers of the carding machines, which are uniformly spread out over the width, with the known scratching and tearing rollers 3.
  • the following endless belt 4 transfers the laid nonwoven to the endless belt 5, which initially runs through a water needling device 6, which is only shown in principle, for consolidation. A needling on drums is also conceivable here, as described in DE-A-197 06 610.
  • a further layer of a nonwoven as a cover layer on the composite nonwoven after the device 8 before the last needling process 11 give up in order to better integrate the pulp fibers in the end product and thus influence the linting.
  • a further card 1 ', 3' then serves for this purpose, by means of which another fleece is placed on top of the product.
  • a spunbonding line is also possible. Only then will the final one

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Nonwoven Fabrics (AREA)
  • Laminated Bodies (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Multicomponent Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

Les procédés connus de production de non-tissés consistent à appliquer une couche de fibres particulièrement absorbantes, par exemple de pâte de bois, sur un voile de support, puis à consolider ce non-tissé composite par enchevêtrement par eau. Ce procédé de consolidation présente néanmoins des inconvénients : une perte importante de fibres de cellulose et par conséquent la nécessité d'épurer l'eau en circulation utilisée pour l'enchevêtrement par eau. L'invention vise à supprimer ces inconvénients. A cet effet, avant l'application de la couche de fibres de cellulose, une fine couche de microfibres, réparties uniformément sur le voile de support par exemple par fusion-soufflage, est appliquée sur ce dernier. Une fois seulement cette opération réalisée, les fibres de cellulose sont appliquées sur la couche de séparation. Les microfibres servent de barrière et empêchent ainsi l'enchevêtrement des fibres de cellulose dans le voile de support, provoqué par l'eau.
EP00949462A 1999-08-19 2000-08-05 Procede et dispositif pour produire un non-tisse composite servant a absorber et a retenir des liquides Expired - Lifetime EP1210474B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19938809 1999-08-19
DE19938809A DE19938809A1 (de) 1999-08-19 1999-08-19 Verfahren und Vorrichtung zur Herstellung eines Kompositvlieses zur Aufnahme und Speicherung von Flüssigkeiten
PCT/EP2000/007621 WO2001014624A1 (fr) 1999-08-19 2000-08-05 Procede et dispositif pour produire un non-tisse composite servant a absorber et a retenir des liquides

Publications (2)

Publication Number Publication Date
EP1210474A1 true EP1210474A1 (fr) 2002-06-05
EP1210474B1 EP1210474B1 (fr) 2004-09-22

Family

ID=7918562

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00949462A Expired - Lifetime EP1210474B1 (fr) 1999-08-19 2000-08-05 Procede et dispositif pour produire un non-tisse composite servant a absorber et a retenir des liquides

Country Status (14)

Country Link
US (1) US6836937B1 (fr)
EP (1) EP1210474B1 (fr)
JP (1) JP2003507597A (fr)
KR (1) KR100712363B1 (fr)
CN (1) CN1258019C (fr)
AT (1) ATE277213T1 (fr)
BR (1) BR0013422B1 (fr)
CA (1) CA2382186C (fr)
DE (2) DE19938809A1 (fr)
DK (1) DK1210474T3 (fr)
EA (1) EA003492B1 (fr)
ES (1) ES2228585T3 (fr)
IL (2) IL148219A0 (fr)
WO (1) WO2001014624A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022069689A1 (fr) 2020-10-02 2022-04-07 Teknoweb Materials S.R.L. Bande composite hydroliée comprenant des fibres discontinues, des fibres absorbantes courtes et un liant

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EA200200264A1 (ru) 2002-08-29
DK1210474T3 (da) 2005-01-24
ES2228585T3 (es) 2005-04-16
IL148219A (en) 2006-12-10
KR100712363B1 (ko) 2007-05-02
US6836937B1 (en) 2005-01-04
CA2382186A1 (fr) 2001-03-01
EP1210474B1 (fr) 2004-09-22
CN1258019C (zh) 2006-05-31
JP2003507597A (ja) 2003-02-25
BR0013422A (pt) 2002-07-09
DE50007929D1 (de) 2004-10-28
ATE277213T1 (de) 2004-10-15
WO2001014624A1 (fr) 2001-03-01
CN1376224A (zh) 2002-10-23
IL148219A0 (en) 2002-09-12
BR0013422B1 (pt) 2011-08-09
CA2382186C (fr) 2007-10-16
KR20030023599A (ko) 2003-03-19
DE19938809A1 (de) 2001-02-22
EA003492B1 (ru) 2003-06-26

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