EP0719887B1 - Method and apparatus for the finishing of carded webs - Google Patents

Method and apparatus for the finishing of carded webs Download PDF

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Publication number
EP0719887B1
EP0719887B1 EP95119470A EP95119470A EP0719887B1 EP 0719887 B1 EP0719887 B1 EP 0719887B1 EP 95119470 A EP95119470 A EP 95119470A EP 95119470 A EP95119470 A EP 95119470A EP 0719887 B1 EP0719887 B1 EP 0719887B1
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EP
European Patent Office
Prior art keywords
woven fabric
heat
pile
fibres
cross
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.)
Expired - Lifetime
Application number
EP95119470A
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German (de)
French (fr)
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EP0719887A2 (en
EP0719887A3 (en
Inventor
Gerold Fleissner
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Truetzschler Nonwovens GmbH
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Fleissner GmbH
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Filing date
Publication date
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Publication of EP0719887A2 publication Critical patent/EP0719887A2/en
Publication of EP0719887A3 publication Critical patent/EP0719887A3/en
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Publication of EP0719887B1 publication Critical patent/EP0719887B1/en
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Expired - Lifetime legal-status Critical Current

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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
    • D04H1/70—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
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G21/00—Combinations of machines, apparatus, or processes, e.g. for continuous processing
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G25/00—Lap-forming devices not integral with machines specified above
    • 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
    • D04H1/4266—Natural fibres not provided for in group D04H1/425
    • 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process

Definitions

  • the invention relates to a method and a machine system for Manufacture of a carded fleece, the fleece made of natural fibers - such as wool, Linen, flak - and synthetic fibers - such as bicomponent, melt fibers - is produced by the nonwoven with fluid finishing agents, such as insecticides, putrefactive agents, Flame retardant and the like. Provided and then dried.
  • fluid finishing agents such as insecticides, putrefactive agents, Flame retardant and the like.
  • thinner carded fleeces made of wool, flak, linen or other natural Fibers do not have sufficient strength immediately after they are manufactured on the carding machine. It is therefore known to mix binders with the fibers. Generally, the binders are applied after the nonwoven is made abandoned this, e.g. B. by spraying or foam impregnation. In the wet Condition is the thin cardboard fleece but difficult to manipulate, it tears quickly. It is therefore also known to use natural fibers prior to the manufacture of the carded nonwoven with synthetic fibers, e.g. B. bicomponent fibers or pure melt fibers mix and then the thin fleece to the temperature of the plasticizable portion of the admixed synthetic fibers to at least pre-consolidate the fleece. Then the carded nonwoven is layered several times in a stacker, to be finally thermally solidified in an oven.
  • synthetic fibers e.g. B. bicomponent fibers or pure melt fibers
  • Nonwovens of this type must be additionally equipped before they are used as intended become. This includes treatment against rotting and flammability. It is therefore known to spray the nonwovens with a finishing agent and then dry that moisture by exposure to heat. It has shown, that the finishing agent applied to the finished nonwoven is not sufficient can be distributed evenly over the cross-section of the fleece. It is therefore have been proposed to provide the necessary liquid coating agent the manufacture of the carded fleece to mix with the fibers, the fibers too dry and then the fleece on the card with the procedure described above to manufacture. However, this route was unsuccessful because the ones adhering to the fibers Finishing agents detach from the fibers when they are carded and are therefore lost go.
  • the object of the invention is to develop a method and a device, with which a carding fleece can be produced that is not only tear-resistant, but also against rotting and flammability evenly over the Cross-section is equipped.
  • the solution of the invention seen in the fact that first a thin card pile was made, this by heating and thus at least melting or melting the synthetic fiber portion pre-consolidated is then sprayed onto the pile of the liquid finishing agent or agents or otherwise given, then the pile is heat-treated to dry and then overlapped several times in a stacker to a thicker nonwoven end product and finally finished in this package by further heat treatment is solidified.
  • a device for performing this method has the necessary for treatment Machines on. They are indicated schematically in the drawing by way of example.
  • the machine system consists of a box feeder 1 with one arranged below it Shake slide 2, the loose accumulation of evenly across the width accumulated fibers of the fleece or pile laying device 3 passes like card.
  • On Endless belt 4 then passes the pile to another endless belt 5, which is expedient both by a heating device 6 and by a liquid spray device 7 extends.
  • the heating device is shown here as a belt dryer, in which the heated treatment air for melting the synthetic fibers Regeneration in a heating circuit is sucked through the endless belt becomes.
  • the arrows are intended to represent the flow of the heated air.
  • a calender dryer can also be used here.
  • the pile is at least on the surface pre-solidified, so that the task of the finishing liquid in the subsequent Spray device 7 for the slightly solidified pile no disadvantageous meaning Has.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)

Description

Die Erfindung bezieht sich auf ein Verfahren und eine Maschinenanlage zum Herstellen eines Krempelvlieses, wobei das Vlies aus natürlichen Fasern - wie Wolle, Leinen, Flaks - und synthetischen Fasern - wie Bikomponenten-, Schmelzfasern - hergestellt ist, indem das Vlies mit fluiden Veredelungsmitteln, wie Insektizide, Fäulnisverminderer, Flammfestausrüster und dgl. versehen und dann getrocknet wird.The invention relates to a method and a machine system for Manufacture of a carded fleece, the fleece made of natural fibers - such as wool, Linen, flak - and synthetic fibers - such as bicomponent, melt fibers - is produced by the nonwoven with fluid finishing agents, such as insecticides, putrefactive agents, Flame retardant and the like. Provided and then dried.

Insbesondere dünnere Krempelvliese aus Woll-, Flaks-, Leinen- oder sonstigen natürlichen Fasern haben keine ausreichende Festigkeit unmittelbar nach deren Herstellung auf der Krempelmaschine. Es ist deshalb bekannt, Bindemittel mit den Fasern zu vermischen. Im allgemeinen werden die Bindemittel nach der Herstellung des Vlieses auf dieses aufgegeben, z. B. durch Besprühen oder Schaumimprägnierung. Im nassen Zustand ist das dünne Krempelvlies aber schlecht manipulierbar, es zerreißt schnell. Es ist deshalb auch bekannt, die natürlichen Fasern vor der Herstellung des Krempelvlieses mit Kunstfasern, z. B. Bikomponentenfasern oder reinen Schmelzfasern, zu vermischen und dann das dünne Vlies auf die Temperatur des plastifizierbaren Anteils der beigemischten Kunstfasern zu erhitzen, um das Vlies zumindest vorzuverfestigen. Anschließend wird dann das Krempelvlies in einem Kreuzleger mehrfach aufgeschichtet, um endgültig in einem Ofen thermisch verfestigt zu werden.In particular, thinner carded fleeces made of wool, flak, linen or other natural Fibers do not have sufficient strength immediately after they are manufactured on the carding machine. It is therefore known to mix binders with the fibers. Generally, the binders are applied after the nonwoven is made abandoned this, e.g. B. by spraying or foam impregnation. In the wet Condition is the thin cardboard fleece but difficult to manipulate, it tears quickly. It is therefore also known to use natural fibers prior to the manufacture of the carded nonwoven with synthetic fibers, e.g. B. bicomponent fibers or pure melt fibers mix and then the thin fleece to the temperature of the plasticizable portion of the admixed synthetic fibers to at least pre-consolidate the fleece. Then the carded nonwoven is layered several times in a stacker, to be finally thermally solidified in an oven.

Vliese dieser Art müssen vor der bestimmungsgemäßen Verwendung zusätzlich ausgerüstet werden. Darunter fallen die Behandlung gegen Verrottung und gegen Entzündbarkeit. Es ist deshalb bekannt, die Vliese mit einem Veredelungsmittel zu besprühen und dann diese Feuchtigkeit durch Wärmeeinwirkung zu trocknen. Es hat sich gezeigt, daß die so auf das fertige Vlies aufgetragenen Veredelungsmittel nicht ausreichend gleichmäßig über den Querschnitt des Vlieses verteilt werden können. Es ist deshalb vorgeschlagen worden, die notwendig flüssig aufzutragenden Veredelungsmittel vor der Herstellung des Krempelvlieses mit den Fasern zu vermischen, die Fasern zu trocken und dann das Vlies auf der Krempel mit dem oben beschriebenen Verfahren herzustellen. Dieser Weg war aber nicht erfolgreich, da die an den Fasern haftenden Veredelungsmittel beim Krempeln sich wieder von den Fasern lösen und somit verloren gehen. Nonwovens of this type must be additionally equipped before they are used as intended become. This includes treatment against rotting and flammability. It is therefore known to spray the nonwovens with a finishing agent and then dry that moisture by exposure to heat. It has shown, that the finishing agent applied to the finished nonwoven is not sufficient can be distributed evenly over the cross-section of the fleece. It is therefore have been proposed to provide the necessary liquid coating agent the manufacture of the carded fleece to mix with the fibers, the fibers too dry and then the fleece on the card with the procedure described above to manufacture. However, this route was unsuccessful because the ones adhering to the fibers Finishing agents detach from the fibers when they are carded and are therefore lost go.

Durch die WO 89/04886 ist es weiterhin bekannt, ein dünnes Vlies mit den notwendigen Veredelungsmitteln zu besprühen, dann das dünne Vlies zu trocknen und schließlich zu einem dickeren Vlies mehrfach übereinanderzulegen. Auch bei diesem Verfahren hat das dünne und dann nasse Vlies nur eine geringe Festigkeit, weswegen der Trockenvorgang vor dem Übereinanderlegen nur sehr aufwendig durchführbar ist.From WO 89/04886 it is also known to use a thin fleece with the spray necessary finishing agents, then dry the thin fleece and finally, put them on top of each other several times to create a thicker fleece. This one too Process has the thin and then wet fleece only a low strength, which is why the drying process before laying one on top of the other is very difficult to carry out.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung zu entwickeln, mit dem oder der ein Krempelvlies hergestellt werden kann, das nicht nur zerreißfest, sondern auch gegen Fäulnis und Entflammbarkeit gleichmäßig über den Querschnitt ausgerüstet ist.The object of the invention is to develop a method and a device, with which a carding fleece can be produced that is not only tear-resistant, but also against rotting and flammability evenly over the Cross-section is equipped.

Ausgehend von dem Verfahren anfangs genannter Art, wird die Lösung der Erfindung darin gesehen, daß zunächst ein dünner Krempelflor hergestellt, dieser durch Erhitzen und damit zumindest Schmelzen oder Anschmelzen des Synthesefaseranteils vorverfestigt wird, dann das oder die flüssigen Veredelungsmittel auf den Flor aufgesprüht oder sonstwie aufgegeben, dann der Flor zum Trocknen wärmebehandelt und anschließend in einem Kreuzleger zu einem dickeren Vliesendprodukt mehrfach übereinandergelegt und abschließend in diesem Paket durch weiteres Wärmebehandeln fertig verfestigt wird.Based on the method initially mentioned, the solution of the invention seen in the fact that first a thin card pile was made, this by heating and thus at least melting or melting the synthetic fiber portion pre-consolidated is then sprayed onto the pile of the liquid finishing agent or agents or otherwise given, then the pile is heat-treated to dry and then overlapped several times in a stacker to a thicker nonwoven end product and finally finished in this package by further heat treatment is solidified.

Der Erfolg dieses Verfahrens liegt darin begründet, daß die flüssigen Veredelungsmittel erst nach der Vorverfestigung des dünnen Krempelvlieses aufgegeben und dann aus wirtschaftlichen Gründen das Vlies vorzugsweise erst getrocknet wird. Die flüssigen Veredelungsmittel dringen ohne weiteres quer durch das jetzt noch dünne Krempelvlies, das wegen der Vorverfestigung ohne weiters, und zwar wegen der geringen Dicke schnell getrocknet werden kann. Damit kann die gewünschte vollständige z. B. Flammfestigkeit des nach dem Kreuzleger dann dickeren Endproduktes mit diesem Verfahren erreicht werden.The success of this process is due to the fact that the liquid finishing agent only after the pre-consolidation of the thin carded fleece and then for economic reasons the fleece is preferably first dried. The liquid Finishing agents penetrate easily through the now thin carding fleece, because of the pre-consolidation, because of the low Thickness can be dried quickly. So that the desired complete z. B. Flame resistance of the end product, which is then thicker after the stacker, with this Procedure can be achieved.

Eine Vorrichtung zur Durchführung dieses Verfahrens weist die zur Behandlung notwendigen Maschinen auf. Sie sind in der Zeichnung schematisch beispielhaft angedeutet. A device for performing this method has the necessary for treatment Machines on. They are indicated schematically in the drawing by way of example.

Die Maschinenanlage besteht aus einem Kastenspeiser 1 mit einer darunter angeordneten Schüttelrutsche 2, die die lose Ansammlung von gleichmäßig über die Breite angehäuften Fasern der Vlies- oder Florlegeeinrichtung 3 wie Krempel übergibt. Ein Endlosband 4 übergibt dann den Flor einem anderen Endlosband 5, das sich zweckmäßigerweise sowohl durch eine Wärmeeinrichtung 6 als auch durch eine FlüssigkeitsSprüheinrichtung 7 erstreckt. Die Wärmeeinrichtung ist hier als Bandtrockner dargestellt, bei der die erhitzte Behandlungsluft zum Anschmelzen der Kunstfasern nach Regeneration in einer Heizeinrichtung im Kreislauf durch das Endlosband gesaugt wird. Die Pfeile sollen die Strömung der erhitzten Luft darstellen. Ein Kalandertrockner kann hier auch zum Einsatz kommen. Jetzt ist der Flor zumindest auf der Oberfläche vorverfestigt, so daß die Aufgabe der Veredelungsflüssigkeit in der sich anschließenden Sprüheinrichtung 7 für den leicht verfestigten Flor keine nachteilige Bedeutung hat. Die aufgegebene Flüssigkeit muß jetzt getrocknet werden. Dies erfolgt in der Siebtrommeleinrichtung 8, in der der Flor ebenfalls von Luft durchströmt und dabei mäanderförmig um die Trommeln geführt wird. Schließlich ist da noch der sich anschließende Kreuzleger 9, von dem der Flor zu einem dickeren Vlies übereinandergelegt wird. Zur Vulkanisation und sonstigen Weiterverarbeitung verfährt dann das Vlies weiter in die Aggregate 10 ff.The machine system consists of a box feeder 1 with one arranged below it Shake slide 2, the loose accumulation of evenly across the width accumulated fibers of the fleece or pile laying device 3 passes like card. On Endless belt 4 then passes the pile to another endless belt 5, which is expedient both by a heating device 6 and by a liquid spray device 7 extends. The heating device is shown here as a belt dryer, in which the heated treatment air for melting the synthetic fibers Regeneration in a heating circuit is sucked through the endless belt becomes. The arrows are intended to represent the flow of the heated air. A calender dryer can also be used here. Now the pile is at least on the surface pre-solidified, so that the task of the finishing liquid in the subsequent Spray device 7 for the slightly solidified pile no disadvantageous meaning Has. The liquid that has been added must now be dried. This takes place in the Sieve drum device 8, in which the pile of air also flows and thereby meandering around the drums. Finally there is the subsequent one Stacker 9, from which the pile is laid to form a thicker fleece becomes. The fleece then moves for vulcanization and other processing further into the aggregates 10 ff.

Claims (2)

  1. Method of producing a carded non-woven fabric, the non-woven fabric being produced from natural fibres - such as wool, linen, flax - and from synthetic fibres - such as two-component fibres, fibres to be melted - in that the non-woven fabric is provided with fluid processing agents, such as insecticides, rot reducers, flameproof finishers and the like, and then dried, characterised in that a thin carded pile is initially produced, this is preset by heating and hence at least the synthetic fibre portion is melted or begins to melt, then the liquid processing agent or agents is or are sprayed onto the pile or otherwise applied thereto, then the pile is heat-treated until dry and subsequently such are placed one above the other repeately in a cross-layering means to form a relatively thick non-woven fabric end product and is finally completely solidified in this group by an additional heat-treatment process.
  2. Machine system for accomplishing the method according to claim 1, including a carding machine, a cross-layering means and a heat-treatment unit, which components are disposed behind one another in a continuously processing machine line, characterised in that, downstream of the carding machine (3), there is provided, in the proper sequence, a heat-treatment unit, such as a calender- or belt-type dryer (6), for beginning to melt the surface of the synthetic fibres, then an applicator (7) for distributing the fluid processing agents uniformly transversely over the non-woven fabric, then a drying unit, such as a sieve-drum dryer (8), for drying the liquid non-woven fabric components and only now the cross-layering means (9) with a subsequently added heat-treatment unit (10).
EP95119470A 1994-12-13 1995-12-11 Method and apparatus for the finishing of carded webs Expired - Lifetime EP0719887B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4444206 1994-12-13
DE4444206A DE4444206A1 (en) 1994-12-13 1994-12-13 Method and device for finishing carded nonwovens

Publications (3)

Publication Number Publication Date
EP0719887A2 EP0719887A2 (en) 1996-07-03
EP0719887A3 EP0719887A3 (en) 1998-04-01
EP0719887B1 true EP0719887B1 (en) 2000-03-22

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EP95119470A Expired - Lifetime EP0719887B1 (en) 1994-12-13 1995-12-11 Method and apparatus for the finishing of carded webs

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US (1) US5617618A (en)
EP (1) EP0719887B1 (en)
DE (2) DE4444206A1 (en)

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DE19813341A1 (en) * 1998-03-26 1999-09-30 Truetzschler Gmbh & Co Kg Carding machine device for production of a fiber web
DE10008746A1 (en) * 2000-02-24 2001-08-30 Fleissner Maschf Gmbh Co Method and device for producing composite nonwovens by means of hydrodynamic needling
DE10113425B4 (en) * 2001-03-20 2007-08-30 Sächsisches Textilforschungsinstitut e.V. Pressure-elastic textile adhesive tape
US8012889B2 (en) * 2001-11-07 2011-09-06 Flexform Technologies, Llc Fire retardant panel composition and methods of making the same
US7906176B2 (en) * 2004-12-17 2011-03-15 Flexform Technologies, Llc Methods of manufacturing a fire retardant structural board
US20060182940A1 (en) * 2005-02-14 2006-08-17 Hni Technologies Inc. Fire-resistant fiber-containing article and method of manufacture
US20090266759A1 (en) * 2008-04-24 2009-10-29 Clarcor Inc. Integrated nanofiber filter media
EP2630287B1 (en) * 2010-10-21 2016-02-24 Hi Tech Textile Holding GmbH Method and apparatus for producing a composite nonwoven
CN102619025B (en) * 2012-04-26 2015-08-12 绍兴文理学院 A kind of non-woven rabbit linter thermal insulation material and preparation method
CN103215698A (en) * 2013-05-03 2013-07-24 桐乡市威泰纺织有限责任公司 Compact semi-worsted wool fiber wool-lubricating and wool-dewing preprocessing technological process

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Also Published As

Publication number Publication date
EP0719887A2 (en) 1996-07-03
DE4444206A1 (en) 1996-06-20
US5617618A (en) 1997-04-08
EP0719887A3 (en) 1998-04-01
DE59508053D1 (en) 2000-04-27

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