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DE19500669A1 - Consolidating fibre web made of synthetic staple fibres - Google Patents

Consolidating fibre web made of synthetic staple fibres

Info

Publication number
DE19500669A1
DE19500669A1 DE19500669A DE19500669A DE19500669A1 DE 19500669 A1 DE19500669 A1 DE 19500669A1 DE 19500669 A DE19500669 A DE 19500669A DE 19500669 A DE19500669 A DE 19500669A DE 19500669 A1 DE19500669 A1 DE 19500669A1
Authority
DE
Germany
Prior art keywords
fibers
nonwoven fabric
solidified
bar
consolidated
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.)
Withdrawn
Application number
DE19500669A
Other languages
German (de)
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
Original Assignee
Fleissner GmbH
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 filed Critical Fleissner GmbH
Priority to DE19500669A priority Critical patent/DE19500669A1/en
Priority to DE59604929T priority patent/DE59604929D1/en
Priority to EP19960100302 priority patent/EP0727517B1/en
Priority to JP8003132A priority patent/JPH08232147A/en
Publication of DE19500669A1 publication Critical patent/DE19500669A1/en
Priority to US09/098,496 priority patent/US5908793A/en
Withdrawn legal-status Critical Current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
    • 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
    • D04H1/70—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)

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

A process is claimed for consolidating a fibre web made of synthetic staple fibres, e.g. polyester, polyethylene or polypropylene fibres, or of continuous fibres that are up to 10 mm thick and consist of pure man-made fibres without binding fibres or special melt fibres. The web is consolidated by means of a single water needling process at a water pressure of no more than 60 bar, pref. 20-30 bar.

Description

Die Erfindung bezieht sich auf ein Verfahren zur Verfestigung eines Faservlieses aus künstlichen Stapelfasern, wie Polyester- Polyatylen- oder Polypropylenfasern oder auch aus solchen Endlosfasern, das in einer Dicke von bis zu 10 mm und mehr aus reinen Chemiefasern ohne Bindefasern, wie Bikomponenten- oder speziellen Schmelzfasern, und ohne Bindemitteln oder auch vermischt mit Naturfasern hergestellt wird.The invention relates to a method for consolidating a nonwoven fabric artificial staple fibers, such as polyester, polyatylene or polypropylene fibers or also from such continuous fibers, which are made in a thickness of up to 10 mm and more pure chemical fibers without binding fibers, such as bicomponent or special Melting fibers, and without binders or mixed with natural fibers becomes.

Krempelfaservliese werden aus Fasern der unterschiedlichsten Art hergestellt. Ganz allgemein haben sie den Vorteil, daß die Kurzfasern im fertigen Vlies wirr durcheinan­ der liegen und deshalb dem Vlies eine bessere Festigkeit in allen Zugrichtungen ver­ leihen. Daneben gibt es Vliese aus Endlosfasern, die nach der Herstellung der Fasern unmittelbar zu einem Vlies z. B. auf ein Endlosband abgelegt werden. Die im von der Krempelmaschine gelieferten Vlies locker verlegten Fasern und auch die eines Spinnvlieses müssen aber zur Herstellung einer in der Praxis befriedigenden Festigkeit miteinander verbunden werden. Dazu ist es bekannt, das Vlies mechanisch zu verna­ deln. Durch diesen im Grunde diskontinuierlichen und damit langsamen Verfestigungs­ vorgang wird das Volumen aber wesentlich vermindert, so daß ein solches mechanisch verfestigtes Nadelvlies für so manche Verwendungsmöglichkeiten nicht brauchbar ist. Außerdem sind dünne Vliese mechanisch gar nicht zu vernadeln.Carded fiber nonwovens are made from a wide variety of fibers. All In general, they have the advantage that the short fibers get tangled up in the finished fleece the lie and therefore the fleece ver better strength in all tensile directions lend. In addition, there are nonwovens made from continuous fibers that are produced after the fibers immediately to a fleece z. B. stored on an endless belt. The im of the Carding machine supplied fleece loosely laid fibers and also one However, spunbonded nonwovens have to be of satisfactory strength in practice be connected to each other. It is known to mechanically verna the fleece deln. Through this basically discontinuous and therefore slow hardening process, however, the volume is significantly reduced, so that such a mechanical Consolidated needle fleece is not usable for so many uses. In addition, thin nonwovens cannot be needled mechanically at all.

Es ist weiterhin bekannt, den Fasern Bindemittel beizugeben, z. B. flüssig durch Auf­ sprühen oder mittels Schaumimprägnierung. Der Nachteil eines solchen Vlieses ist nicht nur die zusätzlich notwendige teure Chemikalie, die nur mit einer gewissen Um­ weltbelastung hergestellt werden kann, sondern auch die schlechtere Recyclfähigkeit. It is also known to add binders to the fibers, e.g. B. liquid by on spray or with foam impregnation. The disadvantage of such a fleece is not just the additionally required expensive chemical, which is only with a certain order pollution, but also the poorer recyclability.  

Weiterhin ist es bekannt, den Vliesen Fasern niedriger schmelzende Chemiefasern wie auch Bikomponentenfasern beizumischen, die dann durch Wärmeeinwirkung zumin­ dest angeschmolzen werden, damit sie mit den benachbarten Fasern des Vlieses verkleben. Hierbei sind die teuren Bindefasern und der zusätzlich notwendige Energie­ aufwand beim Erhitzen bis auf die Schmelztemperatur der Bindefasern von Nachteil.Furthermore, it is known that the nonwoven fibers have lower melting synthetic fibers such as also add bicomponent fibers, which are then reduced by exposure to heat least be melted down so that they match the neighboring fibers of the fleece glue. Here are the expensive binding fibers and the additional energy required expenditure on heating up to the melting temperature of the binding fibers is disadvantageous.

Es ist weiterhin bekannt, die Vliese der genannten Art mittels Wasser zu vernadeln. Die Wasservernadelung hat grundsatzlich den Vorteil, daß es kontinuierlich erfolgt, also höhere Produktionsgeschwindigkeiten möglich sind. Nachteilig sind jedoch die bei der Wasservernadelung entstehenden brettigen, papierahnlichen Produkte.It is also known to needled the nonwovens of the type mentioned by means of water. The principle of water needling is that it takes place continuously, so higher production speeds are possible. However, they are disadvantageous boardy, paper-like products that arise from water needling.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Herstellung eines verfe­ stigten voluminösen Vlieses, wie Krempelfaser- oder Spinnfaservlies, zu entwickeln, bei dem zur Verfestigung keine zusätzlichen Bindechemikalien oder Bindefasern notwendig sind und dennoch die erforderliche Festigkeit auch bei diesem voluminösen Vlies erzielt wird.The invention has for its object a method for producing a verfe to develop solid voluminous fleece, such as carded fiber or staple fiber fleece, in which no additional binding chemicals or binding fibers are used for solidification are necessary and yet the required strength even with this voluminous Fleece is achieved.

Ausgehend von dem Verfahren anfangs genannter Art, wird die Lösung dieser Aufgabe darin gesehen, daß das Vlies allein mittels einer einmaligen Wasservernadelung mit nur einem Wasserdruck von bis zu höchstens 60 bar, vorzugsweise 20-30 bar verfestigt wird.Starting from the procedure initially mentioned, the solution to this problem seen in that the fleece alone by means of a single needling with water only a water pressure of up to a maximum of 60 bar, preferably 20-30 bar is solidified.

Es hat sich überraschend gezeigt, daß das Vlies - so wie es von der Krempel oder von den Spinnbalken nach Ablage geliefert wird - zwar beim Wasservernadeln mit diesem Wasserdruck an Volumen verliert, aber nur unbedeutend wenig. Jedenfalls verfilzen die Fasern durch das Auftreffen der Wasserstrahlen mit dem geringen Wasserdruck derart, daß ein ausreichend verfestigtes Vlies von der nur einen Wasservernadelungsmaschine geliefert wird, um industriell verwendet werden zu können. Dabei kann es von Vorteil sein, wenn vor der eigentlichen Wasservernadelung, das Vlies mit Wasser zur Befeuchtung unter Druck beblasen wird. Die Feuchtigkeit kann anschließend leicht aus dem Vlies abgesaugt und evtl. auch durch Wärme entfernt werden. Wegen des großen Volumens ist nur wenig Energie zur Herstellung des trockenen Vlieses notwendig.It has surprisingly been shown that the fleece - as it is from the card or from the spinning beam is delivered after storage - when needling water with it Water pressure loses volume, but only marginally. Anyway matted the fibers from the impact of the water jets with the low water pressure such that a sufficiently solidified fleece of only one Water needling machine is supplied to be used industrially can. It can be an advantage if before the actual Water needling, the fleece is blown with water for moistening under pressure. The moisture can then easily be sucked out of the fleece and possibly also  be removed by heat. Because of the large volume, there is only little energy available Production of the dry fleece necessary.

Dieses wasservernadelte, voluminöse Vlies ist als Produkt ebenfalls Gegenstand dieser Erfindung. Dies gilt auch für die erfindungsgemäße Verwendung. Es wird auf die Patentansprüche verwiesen.This water needled, voluminous fleece is also a product of this invention. This also applies to the use according to the invention. It's going on referred to the claims.

Dieses Verfahren zur Herstellung eines verfestigten voluminösen Vlieses ist zunächst nur auf die eine Seite des Vlieses angewendet. Die Rückseite (Unterstützungsseite) hat nach der Verfestigungsbehandlung eine andere Oberflächenstruktur. Sollen beide Seiten gleich strukturiert und oberflächenbehandelt sein, so ist selbstverständlich auch die andere Seite des Vlieses einer weiteren Wasservernadelungsmaschine zuzufüh­ ren. Dies hat aber mit dem grundsätzlichen Verfahren der einmaligen Behandlung nichts zu tun. Beim beidseitigen Vernadeln wird ein anderes Produkt gewünscht, das aber auch unter den Schutzumfang des Patents fällt.This method of making a consolidated voluminous nonwoven is first only applied to one side of the fleece. The back (support side) has a different surface structure after the hardening treatment. Should both Sides should be structured and surface treated the same way to feed the other side of the fleece to another water needling machine ren. But this has to do with the basic procedure of one-time treatment Nothing to do. A different product is required for double-sided needling, the but also falls under the scope of protection of the patent.

Claims (11)

1. Verfahren zur Verfestigung eines Faservlieses aus künstlichen Stapelfasern, wie Polyester- Polyatylen- oder Polypropylenfasern, oder auch aus solchen Endlosfasern, das in einer Dicke von bis zu 10 mm und mehr aus reinen Chemiefasern ohne Bindefasern, wie Bikomponenten- oder speziellen Schmelzfasern, und ohne Bindemitteln oder auch vermischt mit Naturfasern hergestellt wird, dadurch gekennzeichnet, daß das Vlies allein mittels einer einmaligen Wasservernadelung mit nur einem Wasserdruck von bis zu höchstens 60 bar, vorzugsweise 20-30 bar verfestigt wird.1. Process for the consolidation of a nonwoven fabric made of artificial staple fibers, such as polyester-polyatylene or polypropylene fibers, or also of such continuous fibers, which in a thickness of up to 10 mm and more from pure synthetic fibers without binding fibers, such as bicomponent or special melt fibers, and is produced without binders or mixed with natural fibers, characterized in that the nonwoven is solidified solely by means of a single needling of water with only a water pressure of up to at most 60 bar, preferably 20-30 bar. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß es bei einer beidseitig gleichen Oberflächenstruktur des Vlieses zweifach durchgeführt wird, und zwar nacheinander auch auf der Rückseite des Vlieses.2. The method according to claim 1, characterized in that it is on both sides same surface structure of the fleece is carried out twice, namely one after the other on the back of the fleece. 3. Faservlies aus künstlichen Stapelfasern, wie Polyester- Polyätylen- oder Polypro­ pylenfasern, oder auch aus solchen Endlosfasern, das in einer Dicke von bis zu 10 mm und mehr aus reinen Chemiefasern ohne Bindefasern, wie Bikomponen­ ten- oder speziellen Schmelzfasern, und ohne Bindemitteln oder auch vermischt mit Naturfasern hergestellt und mittels eines einseitig einmaligen Wasservernadelungsverfahrens mit nur einem Wasserdruck von bis zu höchstens 60 bar, vorzugsweise 20-30 bar verfestigt ist.3. Nonwoven fabric made of artificial staple fibers, such as polyester, polyethylene or polypro pylene fibers, or from such continuous fibers, in a thickness of up to 10 mm and more made of pure chemical fibers without binding fibers, such as bicomponents ten- or special melt fibers, and without binders or mixed made with natural fibers and by means of a one-sided unique Water needling process with only a water pressure of up to at most 60 bar, preferably 20-30 bar is solidified. 4. Faservlies, das nach der Herstellungsart gemäß Anspruch 1 oder 2 verfestigt ist und dessen Fasern einen Titer von 1-15 den aufweisen. 4. Nonwoven fabric, which is consolidated according to the method of manufacture according to claim 1 or 2 and whose fibers have a titer of 1-15 den.   5. Faservlies, das nach der Herstellungsart gemäß Anspruch 1 oder 2 verfestigt ist und dessen Fasern bei Verwendung von Stapelfasern eine Stapellänge von 36-75 mm oder länger aufweisen.5. nonwoven fabric, which is consolidated according to the method of manufacture according to claim 1 or 2 and the fibers of which, when using staple fibers, have a staple length of Have 36-75 mm or longer. 6. Faservlies, das nach der Herstellungsart gemäß Anspruch 1 oder 2 verfestigt ist und ein Gewicht von bis zu 200 g/m² aufweist.6. nonwoven fabric, which is consolidated according to the method of manufacture according to claim 1 or 2 and has a weight of up to 200 g / m². 7. Faservlies, das nach der Herstellungsart gemäß Anspruch 1 oder 2 verfestigt ist und eine Dichte von bis zu 0,05 g/cm³, vorzugsweise 0,01-0,03 g/cm³ aufweist.7. nonwoven fabric, which is consolidated according to the method of manufacture according to claim 1 or 2 and has a density of up to 0.05 g / cm³, preferably 0.01-0.03 g / cm³. 8. Faservlies, das nach der Herstellungsart gemäß Anspruch 1 oder 2 verfestigt ist und eine Reißfestigkeit von 5-300 N/5 cm, vorzugsweise 10-300 N/5 cm aufweist.8. nonwoven fabric, which is consolidated according to the method of manufacture according to claim 1 or 2 and a tensile strength of 5-300 N / 5 cm, preferably 10-300 N / 5 cm having. 9. Verwendung des Faservlieses, das nach der Herstellungsart gemäß Anspruch 1 oder 2 verfestigt ist, als Dochtschicht im Hygiene- oder Sanitärbereich.9. Use of the nonwoven fabric, which according to the method of manufacture according to claim 1 or 2 is solidified, as a wick layer in the hygiene or sanitary area. 10. Verwendung des Faservlieses, das nach der Herstellungsart gemäß Anspruch 1 oder 2 verfestigt ist, als Filterprodukt.10. Use of the nonwoven fabric, which according to the production method according to claim 1 or 2 is solidified as a filter product. 11. Verwendung des Faservlieses, das nach der Herstellungsart gemäß Anspruch 1 oder 2 verfestigt ist, als Watteprodukt in der Kleiderindustrie.11. Use of the nonwoven fabric, which according to the method of manufacture according to claim 1 or 2 is solidified as a cotton product in the clothing industry.
DE19500669A 1994-12-22 1995-01-12 Consolidating fibre web made of synthetic staple fibres Withdrawn DE19500669A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE19500669A DE19500669A1 (en) 1994-12-22 1995-01-12 Consolidating fibre web made of synthetic staple fibres
DE59604929T DE59604929D1 (en) 1995-01-12 1996-01-11 Process for producing a consolidated nonwoven, consolidated nonwoven according to this type of production and use of this nonwoven
EP19960100302 EP0727517B1 (en) 1995-01-12 1996-01-11 Process for manufacturing bonded non-woven material, bonded non-woven material made by this process and use thereof
JP8003132A JPH08232147A (en) 1995-01-12 1996-01-11 Preparation of cured fiber fleece,cured fiber fleece and hygienic supply and sanitary supply and filter product and cotton product containing said fiber fleece or consisting ofsaid fiber fleece
US09/098,496 US5908793A (en) 1995-01-12 1998-06-17 Method for manufacturing a solidified fiber fleece, the resulting solidified fiber fleece, and use of this fleece

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4446006 1994-12-22
DE19500669A DE19500669A1 (en) 1994-12-22 1995-01-12 Consolidating fibre web made of synthetic staple fibres

Publications (1)

Publication Number Publication Date
DE19500669A1 true DE19500669A1 (en) 1996-06-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19500669A Withdrawn DE19500669A1 (en) 1994-12-22 1995-01-12 Consolidating fibre web made of synthetic staple fibres

Country Status (1)

Country Link
DE (1) DE19500669A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0896080A2 (en) * 1997-08-06 1999-02-10 Fleissner GmbH & Co. Maschinenfabrik Process of making a voluminous nonwoven composite fabric, fabric and apparatus for manufacturing the fabric accordingly
EP0900869A2 (en) * 1997-09-05 1999-03-10 Fleissner GmbH & Co. Maschinenfabrik Process of manufacturing a hydroentangled nonwoven web, fabric and linning made therefrom
DE19961211A1 (en) * 1999-12-15 2001-07-12 Vliestec Ag Production of nonwoven felt materials, involves gathering the small particles and fiber dust for return to the start material with water jet bonding to give an ecologically friendly bulked and stable fabric
EP1179626A2 (en) * 2000-08-11 2002-02-13 Johns Manville Europe GmbH Filter medium
US6596124B2 (en) 2000-10-04 2003-07-22 Hexcel Corporation Forming process for cellulose paper based honeycomb structures

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0896080A2 (en) * 1997-08-06 1999-02-10 Fleissner GmbH & Co. Maschinenfabrik Process of making a voluminous nonwoven composite fabric, fabric and apparatus for manufacturing the fabric accordingly
EP0896080A3 (en) * 1997-08-06 1999-09-08 Fleissner GmbH & Co. Maschinenfabrik Process of making a voluminous nonwoven composite fabric, fabric and apparatus for manufacturing the fabric accordingly
EP0900869A2 (en) * 1997-09-05 1999-03-10 Fleissner GmbH & Co. Maschinenfabrik Process of manufacturing a hydroentangled nonwoven web, fabric and linning made therefrom
EP0900869A3 (en) * 1997-09-05 1999-09-15 Fleissner GmbH & Co. Maschinenfabrik Process of manufacturing a hydroentangled nonwoven web, fabric and linning made therefrom
DE19961211A1 (en) * 1999-12-15 2001-07-12 Vliestec Ag Production of nonwoven felt materials, involves gathering the small particles and fiber dust for return to the start material with water jet bonding to give an ecologically friendly bulked and stable fabric
DE19961211B4 (en) * 1999-12-15 2005-04-28 Vliestec Ag Process for producing nonwovens by fluid jet bonding
EP1179626A2 (en) * 2000-08-11 2002-02-13 Johns Manville Europe GmbH Filter medium
DE10039245A1 (en) * 2000-08-11 2002-02-28 Johns Manville Int Inc filter media
DE10039245C2 (en) * 2000-08-11 2002-06-13 Johns Manville Int Inc filter media
EP1179626A3 (en) * 2000-08-11 2005-10-12 Johns Manville Europe GmbH Filter medium
US6596124B2 (en) 2000-10-04 2003-07-22 Hexcel Corporation Forming process for cellulose paper based honeycomb structures

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