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EP0411248A1 - Method for producing patterned textile needled felt or needled fleece sheets - Google Patents

Method for producing patterned textile needled felt or needled fleece sheets Download PDF

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Publication number
EP0411248A1
EP0411248A1 EP90106927A EP90106927A EP0411248A1 EP 0411248 A1 EP0411248 A1 EP 0411248A1 EP 90106927 A EP90106927 A EP 90106927A EP 90106927 A EP90106927 A EP 90106927A EP 0411248 A1 EP0411248 A1 EP 0411248A1
Authority
EP
European Patent Office
Prior art keywords
web
fibers
carrier web
nonwoven
needles
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
EP90106927A
Other languages
German (de)
French (fr)
Other versions
EP0411248B1 (en
Inventor
Johann Philipp Dilo
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.)
Oskar Dilo Maschinenfabrik KG
Original Assignee
Oskar Dilo Maschinenfabrik KG
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Filing date
Publication date
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Publication of EP0411248A1 publication Critical patent/EP0411248A1/en
Application granted granted Critical
Publication of EP0411248B1 publication Critical patent/EP0411248B1/en
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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
    • D04H1/40—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
    • D04H1/44—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
    • 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
    • D04H11/00—Non-woven pile fabrics
    • D04H11/08—Non-woven pile fabrics formed by creation of a pile on at least one surface of a non-woven fabric without addition of pile-forming material, e.g. by needling, by differential shrinking

Definitions

  • the invention relates to a method for producing patterned textile needle felt or nonwoven webs from nonwoven fabrics and textile fiber material.
  • a system for the production of structured textile velor needle felt webs which consists of a mechanically or an aerodynamically operating fleece laying machine, a pre-needle machine and a velor needle machine, in which at least the velor needle machine with a fleece to be needled and Endless brush band serving as a stitch pad is composed of a plurality of brush plates carrying the tufts of bristles, the outer edges of which are formed in a zigzag shape such that the edges of adjacent brush plates engage in such a way that the tufts of bristles have the same distances from one another along the outer edges such as those in the inner area of the brush plate, the bristles of the bristle tufts are ground conically or wedge-shaped at their free end, the hold-down plate rests on the nonwoven web and presses it down t will be used for the three-dimensional structuring of the pre-needled nonwoven crown needles.
  • the invention has for its object to develop a method by means of which it is possible in a simple manner with the least possible outlay on equipment to produce versatile and also differently patterned textile needle felt or nonwoven webs.
  • a method which consists in structuring a single-layer or multi-layer pre-needled nonwoven web preferably by means of crown and / or fork needles to form a velor web, then at least one layer providing a pattern on this web textile fibers, in particular staple fibers, which differ from the fibers of the carrier web in terms of their color and / or their shape and / or their material and / or their degree of fineness and / or their orientation, apply to all or part of the surface and finally this web of further needling
  • the fibers applied to the carrier web are printed until they are visible through them on the underside of the web, the poles of which lie essentially in the plane of the lower surface of the web.
  • Crown needles are preferably used to produce the structured carrier web.
  • fork needles can also be used instead of the crown needles or in addition to the crown needles if the desired structuring of the carrier web requires this.
  • the structuring needle unit is expediently equipped with two parallel needle bars that work either synchronously or asynchronously according to a certain program. It is also possible to switch off the needle bar fully equipped with fork needles.
  • the carrier web can be produced from a wide variety of primary materials, either from a pre-needled non-woven fabric or a pre-needled nonwoven web with essentially in the longitudinal or web direction oriented fibers.
  • the primary material can be one or more layers. It is also possible for the individual layers to contain fibers which are oriented in very specific directions within the web. Such materials are produced in a manner known per se with the aid of machines or apparatus known per se.
  • the application of the fiber material required for the patterning of the needle felt or nonwoven webs can be done by placing a further web of fibrous material over the entire surface or in strip form on the carrier web and then, as already stated, treating it further. Instead of large-area or strip-shaped nonwoven webs, it is also possible, depending on the desired pattern, to place a large number of flat sections of a nonwoven web of fiber with the desired geometric shape on the carrier web.
  • the fibers in the nonwovens or their sections applied to the carrier web have an orientation which runs transversely to the main orientation of the fibers in the carrier web.
  • the fibers effecting the pattern are optimally grasped by the fork needles and pressed through the carrier web on the underside thereof, which is later the top side of the end product.
  • the staple fibers which effect the pattern can be applied to the carrier web with the aid of a continuous or discontinuous or intermittent air stream, which is expediently done by the air stream laden with fibers being obtained from at least one mouthpiece which is located above the carrier web , lets out; thereby the fibers conveyed by the air flow are deposited on the carrier web, in those places where the mouthpiece or the mouthpieces are located.
  • a vacuum is created below the carrier web in the area in which the mouthpiece or mouthpieces are located above it, in order to hold the staple fibers deposited on the carrier web in particular in accordance with a predetermined pattern so that they are held by the air flow promoting the fibers and escaping to the side cannot be blown away to the side.
  • the mouthpieces at the end of an assembly for transporting the staple fibers with the aid of an air stream can be designed in a wide variety of ways. If the staple fibers used for the pattern are to be distributed homogeneously on the carrier web, the mouthpiece extends over its entire width. If one wishes to lay down the staple fibers in a strip shape on the carrier web, several mouthpieces are expediently arranged along a row above the carrier web, the width of the mouthpieces corresponding to the width of the strips of deposited pattern fibers. However, it is also possible to provide one or more mouthpieces which are arranged in a stationary or movable manner above the carrier web.
  • the drive units for the mouthpiece or mouthpieces can be actuated according to a predetermined computer-controlled program, in order in this way to determine the fibers used for the patterning Place them on the moving carrier web.
  • a brush belt with a surface that is as homogeneous as possible and formed by the tips of the bristles, so that the material web is supported in the best possible way.
  • a brush belt has become known from DE-OS 34 44 763. It has already proven itself in practice and is therefore also ideally suited for the method under consideration here, since there are no gaps or spots in the surface of the brush strip with a smaller or denser bristle population.
  • the preliminary product or products that were formed to form the nonwoven web for the purpose of structuring it can be stretched in a manner known per se depending on the orientation of the fibers contained in the nonwoven or in other directions. This method is known per se and therefore requires no further explanation.
  • fork needles are used, in which the planes in which the forks are located lie transversely to the direction of those fibers which are pushed through the carrier web in the form of pile loops by the forks should.
  • crown needles or optionally other shaped needles can also be used in addition to the fork needles.
  • the needles used here in groups to one or more needle bars that can be moved up and down, the individual ones Needle bars can be moved together in time and synchronously or asynchronously to one another or else individually and independently of one another.
  • the desired pattern is particularly decisive for the movement of the individual needle bars. It is important here to change the distance of the needles relative to the plane of the fleece to be needled or the support surface of the carrier web during operation in the last needling stage, depending on the pattern to be generated.
  • the needle units and / or the carrier web can be adjusted mechanically or electrically or also hydraulically in the manner specified above.
  • the needle bars are not filled with needles over their entire width, but only in places or areas, so that there are practically no limits to the variety of patterns that can be generated.

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

Abstract

Method for producing patterned textile needle felt or fleece webs from fibre fleeces and textile fibre material by structuring a single- or multi-layered preneedled fibre fleece web, preferably by means of crowned and/or forked needles, to form a velour web, then applying to this web at least one patterning ply of textile fibres, in particular staple fibres, which differ from the fibres of the carrier web in respect of colour and/or shape and/or material and/or fineness and/or orientation over the whole or part of the area, and finally subjecting this web to a further needling, wherein the fibres applied to the carrier web are pressed through the web until visible on the underside of the web, the piles thereof lying essentially in the plane of the lower surface of the web.

Description

Die Erfindung betrifft ein Verfahren zum Herstellen ge­musterter textiler Nadelfilz- bzw. -vliesbahnen aus Faser­vliesen und textilem Fasermaterial.The invention relates to a method for producing patterned textile needle felt or nonwoven webs from nonwoven fabrics and textile fiber material.

Aus der DE-OS 34 44 763 ist eine Anlage zum Herstellen von strukturierten textilen Velournadelfilzbahnen bekannt, welche aus einer mechanisch bzw. einer aerodynamisch arbeitenden Vlieslegemaschine, einer Vornadelmaschine und einer Velournadelmaschine besteht, bei welcher wenigstens die Velournadelmaschine mit einem das zu nadelnde Vlies tragenden und als Stichunterlage dienenden endlosen Bürsten­band ausgerüstet ist, welches aus einer Vielzahl von die Borstenbüschel tragenden Bürstenplatten zusammengesetzt ist, deren Außenkanten zickzackförmig derart ausgebildet sind, daß die Kanten jeweils einander benachbarter Bürstenplatten in der Weise ineinandergreifen, daß die Borstenbüschel ent­lang den Außenkanten die gleichen Abstände voneinander haben wie die im inneren Bereich der Bürstenplatte, die Borsten der Borstenbüschel an ihrem freien Ende konisch oder keil­förmig angeschliffen sind, die Niederhalteplatte auf der Faservliesbahn aufliegt und gegen diese niedergedrückt wird und zur dreidimensionalen Strukturierung des vorgenadelten Faservlieses Kronennadeln Anwendung finden.From DE-OS 34 44 763 a system for the production of structured textile velor needle felt webs is known, which consists of a mechanically or an aerodynamically operating fleece laying machine, a pre-needle machine and a velor needle machine, in which at least the velor needle machine with a fleece to be needled and Endless brush band serving as a stitch pad is composed of a plurality of brush plates carrying the tufts of bristles, the outer edges of which are formed in a zigzag shape such that the edges of adjacent brush plates engage in such a way that the tufts of bristles have the same distances from one another along the outer edges such as those in the inner area of the brush plate, the bristles of the bristle tufts are ground conically or wedge-shaped at their free end, the hold-down plate rests on the nonwoven web and presses it down t will be used for the three-dimensional structuring of the pre-needled nonwoven crown needles.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zu entwickeln, mittels dessen es in einfacher Weise bei ge­ringstmöglichem apparativem Aufwand möglich ist, vielseitig und auch unterschiedlich gemusterte textile Nadelfilz- bzw. -vliesbahnen herzustellen.The invention has for its object to develop a method by means of which it is possible in a simple manner with the least possible outlay on equipment to produce versatile and also differently patterned textile needle felt or nonwoven webs.

Zur Lösung dieser Aufgabe wird gemäß der Erfindung ein Verfahren vorgeschlagen, das darin besteht, daß man eine ein- oder mehrlagige vorgenadelte Faservliesbahn vorzugs­weise mittels Kronen- und bzw. oder Gabelnadeln zu einer Velourbahn strukturiert, sodann auf diese Bahn wenigstens eine eine Musterung bewirkende Lage von textilen Fasern, insbesondere Stapelfasern, die sich von den Fasern der Trägerbahn hinsichtlich ihrer Farbe und/oder ihrer Form und/oder ihres Materials und/oder ihres Feinheitsgrades und/oder ihrer Orientierung unterscheiden, ganz- oder teilflächig aufbringt und schließlich diese Bahn einer weiteren Nadelung unterwirft, wobei die auf die Trägerbahn aufgebrachten Fasern bis zu ihrer Sichtbarkeit durch diese hindurch auf die Unterseite der Bahn gedruckt werden, wobei deren Pole im wesentlichen in der Ebene der unteren Ober­fläche der Bahn liegen.To achieve this object, a method is proposed according to the invention, which consists in structuring a single-layer or multi-layer pre-needled nonwoven web preferably by means of crown and / or fork needles to form a velor web, then at least one layer providing a pattern on this web textile fibers, in particular staple fibers, which differ from the fibers of the carrier web in terms of their color and / or their shape and / or their material and / or their degree of fineness and / or their orientation, apply to all or part of the surface and finally this web of further needling The fibers applied to the carrier web are printed until they are visible through them on the underside of the web, the poles of which lie essentially in the plane of the lower surface of the web.

Vorzugsweise wird man zur Herstellung der strukturierten Trägerbahn Kronennadeln verwenden. Gabelnadeln kann man jedoch auch, und zwar anstelle der Kronennadeln oder zu­sätzlich zu den Kronennadeln verwenden, wenn die gewünschte Strukturierung der Trägerbahn dies erfordert. Dies bedeutet, daß das die Strukturierung bewirkende Nadelaggregat zweck­mäßigerweise mit zwei einander parallelen Nadelbalken aus­gerüstet ist, die entweder synchron oder asynchron nach einem bestimmten Programm arbeiten. Auch ist es möglich, den mit Gabelnadeln bestückten Nadelbalken ganz abzuschalten.Crown needles are preferably used to produce the structured carrier web. However, fork needles can also be used instead of the crown needles or in addition to the crown needles if the desired structuring of the carrier web requires this. This means that the structuring needle unit is expediently equipped with two parallel needle bars that work either synchronously or asynchronously according to a certain program. It is also possible to switch off the needle bar fully equipped with fork needles.

Die Trägerbahn kann aus unterschiedlichsten Vormaterialien hergestellt werden, und zwar entweder aus einem vorgenadel­ten Wirrfaservlies oder einer vorgenadelten Faservliesbahn mit im wesentlichen in Bahnlängs- oder Bahnquerrichtung orientierten Fasern. Das Vormaterial kann ein- oder mehr­lagig sein. Auch ist es möglich, daß die einzelnen Lagen Fasern enthalten, die in ganz spezifischen Richtungen innerhalb der Bahn orientiert sind. Die Herstellung solcher Vormaterialien erfolgt in an sich bekannter Weise mit Hilfe an sich bekannter Maschinen bzw. Apparate. Das Aufbringen des für die Musterung der textilen Nadelfilz- bzw. -vlies­bahnen benötigten Fasermaterials kann dadurch geschehen, daß man eine weitere aus einem Vlies bestehende Fasermaterial­bahn ganzflächig oder in Streifenform auf die Trägerbahn auflegt und diese dann, wie bereits angegeben, weiterbe­handelt. Anstelle großflächiger oder streifenförmiger Vliesbahnen kann man auch, je nach der gewünschten Muste­rung, eine Vielzahl flächiger Teilstücke einer Faservlies­bahn mit gewünschter geometrischer Form auf die Träger­bahn auflegen.The carrier web can be produced from a wide variety of primary materials, either from a pre-needled non-woven fabric or a pre-needled nonwoven web with essentially in the longitudinal or web direction oriented fibers. The primary material can be one or more layers. It is also possible for the individual layers to contain fibers which are oriented in very specific directions within the web. Such materials are produced in a manner known per se with the aid of machines or apparatus known per se. The application of the fiber material required for the patterning of the needle felt or nonwoven webs can be done by placing a further web of fibrous material over the entire surface or in strip form on the carrier web and then, as already stated, treating it further. Instead of large-area or strip-shaped nonwoven webs, it is also possible, depending on the desired pattern, to place a large number of flat sections of a nonwoven web of fiber with the desired geometric shape on the carrier web.

Um die erwünschte Musterung des Endprodukts in optimaler Weise zu erhalten, haben die Fasern in den auf die Träger­bahn aufgebrachten Faservliesen oder deren Teilstücken eine Orientierung, die quer zur Hauptorientierung der Fasern in der Trägerbahn verläuft. Dadurch werden die die Musterung bewirkenden Fasern von den Gabelnadeln optimal erfaßt und durch die Trägerbahn auf deren Unterseite, die dann später die Oberseite des Endprodukts ist, hindurchgedrückt.In order to optimally obtain the desired patterning of the end product, the fibers in the nonwovens or their sections applied to the carrier web have an orientation which runs transversely to the main orientation of the fibers in the carrier web. As a result, the fibers effecting the pattern are optimally grasped by the fork needles and pressed through the carrier web on the underside thereof, which is later the top side of the end product.

Nach einer weiteren Variante des Verfahrens kann man die die Musterung bewirkenden Stapelfasern mit Hilfe eines kontinu­ierlichen oder diskontinuierlichen oder intermittierenden Luftstroms auf die Trägerbahn aufbringen, was zweckmäßiger­weise dadurch geschieht, daß man den mit Fasern beladenen Luftstrom aus wenigstens einem Mundstück, welches sich ober­halb der Trägerbahn befindet, austreten läßt; dadurch werden die vom Luftstrom geförderten Fasern auf der Trägerbahn niedergeschlagen, und zwar an denjenigen Stellen, wo sich das Mundstück oder die Mundstücke befinden. Gegebenenfalls kann es von Vorteil sein, daß unterhalb der Trägerbahn in demjenigen Bereich, in welchem sich oberhalb desselben das oder die Mundstücke befinden, ein Vakuum erzeugt wird, um die insbesondere gemäß eines vorbestimmten Musters auf der Trägerbahn abgelegten Stapelfasern auf dieser festzuhalten, damit sie von dem die Fasern fördernden und zur Seite ent­weichenden Luftstrom nicht seitlich weggeweht werden können.According to a further variant of the method, the staple fibers which effect the pattern can be applied to the carrier web with the aid of a continuous or discontinuous or intermittent air stream, which is expediently done by the air stream laden with fibers being obtained from at least one mouthpiece which is located above the carrier web , lets out; thereby the fibers conveyed by the air flow are deposited on the carrier web, in those places where the mouthpiece or the mouthpieces are located. If appropriate, it can be advantageous that a vacuum is created below the carrier web in the area in which the mouthpiece or mouthpieces are located above it, in order to hold the staple fibers deposited on the carrier web in particular in accordance with a predetermined pattern so that they are held by the air flow promoting the fibers and escaping to the side cannot be blown away to the side.

Die Mundstücke am Ende eines Aggregats zum Antransport der Stapelfasern mit Hilfe eines Luftstroms können in unter­schiedlichster Weise ausgestaltet sein. Sollen die der Musterung dienenden Stapelfasern homogen auf der Trägerbahn verteilt werden, so erstreckt sich das Mundstück über dessen ganze Breite. Wünscht man die Stapelfasern streifenförmig auf der Trägerbahn abzulegen, so sind zweckmäßigerweise mehrere Mundstücke längs einer Reihe oberhalb der Trägerbahn angeordnet, wobei die Breite der Mundstücke der Breite der Streifen abgelegter Musterungsfasern entspricht. Es ist aber auch möglich, ein oder mehrere Mundstücke vorzusehen, die stationär oder beweglich oberhalb der Trägerbahn angeordnet sind. Sind das oder die Mündstücke im Rahmen eines Koordi­natensystems längs einer X- und/oder Y-Achse beweglich, so können die Antriebsaggregate für das oder die Mundstücke nach einem vorbestimmten computergesteuerten Programm be­tätigt werden, um auf diese Weise die der Musterung dienen­den Fasern an ganz bestimmten Stellen auf der sich bewegen­den Trägerbahn abzulegen.The mouthpieces at the end of an assembly for transporting the staple fibers with the aid of an air stream can be designed in a wide variety of ways. If the staple fibers used for the pattern are to be distributed homogeneously on the carrier web, the mouthpiece extends over its entire width. If one wishes to lay down the staple fibers in a strip shape on the carrier web, several mouthpieces are expediently arranged along a row above the carrier web, the width of the mouthpieces corresponding to the width of the strips of deposited pattern fibers. However, it is also possible to provide one or more mouthpieces which are arranged in a stationary or movable manner above the carrier web. If the mouthpiece or mouthpieces can be moved along an X and / or Y axis within the framework of a coordinate system, the drive units for the mouthpiece or mouthpieces can be actuated according to a predetermined computer-controlled program, in order in this way to determine the fibers used for the patterning Place them on the moving carrier web.

Vorzugsweise verwendet man zur Durchführung des erfindungs­gemäßen Verfahrens als Unterlage für die Materialbahn zum Zwecke ihrer Bearbeitung während aller Verfahrensschritte ein Bürstenband mit möglichst homogener, von den Spitzen der Borsten gebildeten Oberfläche, so daß eine bestmögliche Ab­stützung der Materialbahn erfolgt. Ein derartiges Bürsten­band ist aus der DE-OS 34 44 763 bekanntgeworden. Es hat sich in der Praxis bereits hervorragend bewährt und ist daher auch für das vorliegend in Betracht kommende Verfahren optimal geeignet, da in der Oberfläche des Bürstenbandes keine Lücken oder Stellen mit geringererer oder dichtererer Borstenbesetzung vorhanden sind. Je nach den speziellen Anforderungen an das Endprodukt kann man das oder die Vor­produkte, die zur Bildung der Faservliesbahn zum Zwecke deren Strukturierung gebildet worden sind, in an sich be­kannter Weise in Abhangigkeit von der Orientierung der im Vlies enthaltenen Fasern oder auch in anderen Richtungen recken. Dieses Verfahren ist an sich bekannt und bedarf daher keiner weiteren Erläuterung.Is preferably used to carry out the method according to the invention as a base for the material web For the purpose of processing them during all process steps, a brush belt with a surface that is as homogeneous as possible and formed by the tips of the bristles, so that the material web is supported in the best possible way. Such a brush belt has become known from DE-OS 34 44 763. It has already proven itself in practice and is therefore also ideally suited for the method under consideration here, since there are no gaps or spots in the surface of the brush strip with a smaller or denser bristle population. Depending on the special requirements for the end product, the preliminary product or products that were formed to form the nonwoven web for the purpose of structuring it can be stretched in a manner known per se depending on the orientation of the fibers contained in the nonwoven or in other directions. This method is known per se and therefore requires no further explanation.

Wie bereits erwähnt, verwendet man für das abschließende Vernadeln der Materialbahn zur Herstellung des Endprodukts Gabelnadeln, bei welchen die Ebenen, in welchen sich die Gabeln befinden, quer zur Richtung derjenigen Fasern liegen, welche von den Gabeln in Form von Polschlingen durch die Tragerbahn hindurchgedrückt werden sollen. Je nach den spezifischen Anforderungen an das Endprodukt kann man gegebenenfalls zusätzlich zu den Gabelnadeln auch noch Kronen- oder gegebenenfalls anders geformte Nadeln ver­wenden.As already mentioned, for the final needling of the material web for the production of the end product, fork needles are used, in which the planes in which the forks are located lie transversely to the direction of those fibers which are pushed through the carrier web in the form of pile loops by the forks should. Depending on the specific requirements of the end product, crown needles or optionally other shaped needles can also be used in addition to the fork needles.

Zum Vernadeln der Materialbahn in der letzten Vernadelungs­stufe ist es vorteilhaft, die hier zum Einsatz gelangenden Nadeln gruppenweise an einem oder an mehreren auf und nieder bewegbaren Nadelbalken anzubringen, wobei die einzelnen Nadelbalken gemeinsam im Takt und synchron oder aber auch asynchron zueinander oder aber auch einzeln und unabhängig voneinander bewegbar sind. Maßgebend für die Bewegung der einzelnen Nadelbalken ist insbesondere die gewünschte Muste­rung. Wesentlich ist hierbei, in der letzten Vernadelungs­stufe die Distanz der Nadeln relativ zur Ebene des zu ver­nadelnden Vlieses bzw. der Auflagefläche der Trägerbahn während des Betriebs zu verändern, und zwar in Abhängigkeit von der zu erzeugenden Musterung. Die Verstellung der Nadel­aggregate und bzw. oder der Trägerbahn in der zuvor ange­gebenen Weise kann mechanisch oder elektrisch oder auch hydraulisch erfolgen.For needling the material web in the last needling stage, it is advantageous to attach the needles used here in groups to one or more needle bars that can be moved up and down, the individual ones Needle bars can be moved together in time and synchronously or asynchronously to one another or else individually and independently of one another. The desired pattern is particularly decisive for the movement of the individual needle bars. It is important here to change the distance of the needles relative to the plane of the fleece to be needled or the support surface of the carrier web during operation in the last needling stage, depending on the pattern to be generated. The needle units and / or the carrier web can be adjusted mechanically or electrically or also hydraulically in the manner specified above.

In diesem Zusammenhang kann man auch vorsehen, die Nadel­balken nicht über ihre ganze Breite mit Nadeln zu besetzen, sondern nur stellen- oder bereichsweise, so daß der Vielfalt der erzeugbaren Musterungen praktisch keine Grenzen gesetzt sind.In this context, it can also be provided that the needle bars are not filled with needles over their entire width, but only in places or areas, so that there are practically no limits to the variety of patterns that can be generated.

Auf diese Art und Weise hat man hinsichtlich der Musterung jedwede nur denkbare Variationsmöglichkeit.In this way you have every conceivable variation with regard to the pattern.

Claims (20)

1. Verfahren zum Herstellen gemusterter textiler Nadel­filz- bzw. -vliesbahnen aus Faservliesen und textilem Fasermaterial, dadurch gekennzeichnet, daß man eine ein- oder mehrlagige vorgenadelte Faservliesbahn vor­zugsweise mittels Kronen- und bzw. oder Gabelnadeln zu einer Velourbahn strukturiert, sodann auf diese Bahn wenigstens eine eine Musterung bewirkende Lage von textilen Fasern, insbesondere Stapelfasern, die sich von den Fasern der Trägerbahn hinsichtlich ihrer Farbe und/oder ihrer Form und/oder ihres Materials und/oder ihres Feinheitsgrades und/oder ihrer Orientierung unterscheiden, ganz- oder teilflächig aufbringt und schließlich diese Bahn einer weiteren Nadelung unter­wirft, wobei die auf die Tragerbahn aufgebrachten Fasern bis zu ihrer Sichtbarkeit durch diese hindurch auf die Unterseite der Bahn gedrückt werden, wobei deren Pole im wesentlichen in der Ebene der unteren Oberfläche der Bahn liegen.1. A method for producing patterned textile needle felt or nonwoven webs from nonwovens and textile fiber material, characterized in that a single or multi-layer pre-needled nonwoven web is preferably structured by means of crown and / or fork needles to form a velor web, then at least on this web a pattern or layer of textile fibers, in particular staple fibers, which differ from the fibers of the carrier web in terms of their color and / or their shape and / or their material and / or their degree of fineness and / or their orientation, apply to all or part of their surface and finally this web is subjected to further needling, the fibers applied to the carrier web being pressed until they are visible through them onto the underside of the web, the poles of which lie essentially in the plane of the lower surface of the web. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Trägerbahn aus einem vorgenadelten Wirrfaser­vlies hergestellt wird.2. The method according to claim 1, characterized in that the carrier web is made of a pre-needled random fiber fleece. 3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Trägerbahn aus einer vorgenadelten Faservlies­bahn mit im wesentlichen in Bahnlängsrichtung orien­tierten Fasern hergestellt ist.3. The method according to claim 1, characterized in that the carrier web is made of a pre-needled nonwoven web with fibers oriented essentially in the longitudinal direction of the web. 4. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Trägerbahn aus einer vorgenadelten Faservlies­ bahn mit im wesentlichen in Bahnquerrichtung orien­tierten Fasern hergestellt ist.4. The method according to claim 1, characterized in that the carrier web made of a pre-needled nonwoven fabric is produced with fibers oriented essentially in the transverse direction of the web. 5. Verfahren nach Anspruch 1, 2, 3 oder 4, dadurch ge­kennzeichnet, daß man auf die Trägerbahn wenigstens eine weitere Faservliesbahn ganzflächig aufbringt.5. The method according to claim 1, 2, 3 or 4, characterized in that at least one further nonwoven fibrous web is applied over the entire area to the carrier web. 6. Verfahren nach Anspruch 1, 2, 3 oder 4, dadurch ge­kennzeichnet, daß man auf die Trägerbahn Streifen einer oder mehrerer Faservliesbahnen aufbringt.6. The method according to claim 1, 2, 3 or 4, characterized in that strips of one or more nonwoven webs are applied to the carrier web. 7. Verfahren nach einem oder mehreren der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß man auf die Trägerbahn eine Vielzahl von flächigen Teilstücken einer Faser­vliesbahn mit gewünschter geometrischer Form auf­bringt.7. The method according to one or more of claims 1 to 6, characterized in that a plurality of flat portions of a nonwoven web with the desired geometric shape is applied to the carrier web. 8. Verfahren nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, daß die Fasern in den auf die Träger­bahn aufgebrachten Faservliesen oder deren Teilstücken quer zur Orientierung der Fasern in der Trägerbahn orientiert sind.8. The method according to any one of claims 5 to 7, characterized in that the fibers are oriented transversely to the orientation of the fibers in the carrier web in the fiber webs applied to the carrier web or their portions. 9. Verfahren nach Anspruch 1, 2, 3 oder 4, dadurch ge­kennzeichnet, daß man auf die Trägerbahn Stapelfasern mit Hilfe eines kontinuierlichen oder diskontinuier­lichen oder intermittierenden Luftstroms aufbringt.9. The method according to claim 1, 2, 3 or 4, characterized in that staple fibers are applied to the carrier web with the aid of a continuous or discontinuous or intermittent air stream. 10. Verfahren nach Anspruch 9, dadurch gekennzeichnet, daß der mit Fasern beladene Luftstrom aus wenigstens einem Mundstück od.dgl. austritt, welches sich über die ganze Breite oder nur einen Teil oder mehrere Teile der Breite der Trägerbahn erstreckt.10. The method according to claim 9, characterized in that the air flow loaded with fibers or the like from at least one mouthpiece. emerges, which extends over the entire width or only a part or more parts of the width of the carrier web. 11. Verfahren nach Anspruch 9, dadurch gekennzeichnet, daß der mit Fasern beladene Luftstrom aus einem oder mehreren Mundstücken austritt.11. The method according to claim 9, characterized in that the air flow loaded with fibers emerges from one or more mouthpieces. 12. Verfahren nach Anspruch 10 oder 11, dadurch gekenn­zeichnet, daß das Mundstück oder die Mundstücke gegen­über der Trägerbahn in jeder gewünschten Richtung be­wegbar sind.12. The method according to claim 10 or 11, characterized in that the mouthpiece or the mouthpieces are movable relative to the carrier web in any desired direction. 13. Verfahren nach einem oder mehreren der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß das auf die Trägerbahn aufgebrachte Faservlies bzw. die Faservliesstücke bzw. die auf diese aufgeblasenen Fasern auf der Trägerbahn durch Vernadeln fixiert bzw. angeheftet oder durch ein Vakuum unterhalb der Trägerbahn angesaugt werden.13. The method according to one or more of claims 1 to 12, characterized in that the nonwoven fabric applied to the carrier web or the nonwoven fabric pieces or the fibers inflated onto these are fixed or attached to the carrier web by needling or by a vacuum below the carrier web be sucked in. 14. Verfahren nach einem oder mehreren der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß die Materialbahn zum Zwecke ihrer Bearbeitung während aller Verfahrens­schritte auf einem Bürstenband mit homogener, von den Spitzen der Borsten gebildeten Oberfläche aufliegt.14. The method according to one or more of claims 1 to 13, characterized in that the material web rests for the purpose of its processing during all process steps on a brush belt with a homogeneous surface formed by the tips of the bristles. 15. Verfahren nach einem oder mehreren der Ansprüche 1 bis 14, dadurch gekennzeichnet, daß man die vorgenandelte Faservliesbahn vor deren Strukturierung in an sich be­kannter Weise in Abhängigkeit von der Orientierung der im Vlies enthaltenen Fasern oder in anderen Richtungen reckt.15. The method according to one or more of claims 1 to 14, characterized in that one stretches the pre-treated nonwoven web before structuring it in a manner known per se depending on the orientation of the fibers contained in the nonwoven or in other directions. 16. Verfahren nach einem oder mehreren der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß für das abschließende Vernadeln der Bahn Gabelnadeln verwendet werden, und daß die Gabelnadeln derart orientiert sind, daß die Ebenen der Gabeln quer zur Richtung derjenigen Fasern liegen, welche durch sie in Form von Polschlingen durch die Trägerbahn hindurchgedrückt werden sollen.16. The method according to one or more of claims 1 to 15, characterized in that fork needles are used for the final needling of the web, and that the fork needles are oriented such that the Layers of the forks lie transversely to the direction of those fibers which are to be pressed through them in the form of pile loops through the carrier web. 17. Verfahren nach einem oder mehreren der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß für das abschließende Vernadeln der Bahn zusätzlich zu den Gabelnadeln auch Kronennadeln verwendet werden.17. The method according to one or more of claims 1 to 15, characterized in that crown needles are used in addition to the fork needles for the final needling of the web. 18. Verfahren nach einem oder mehreren der Ansprüche 1 bis 17, dadurch gekennzeichnet, daß die Nadeln der letzten Vernadelungsstufe gruppen- oder bereichsweise an einem oder an mehreren auf und nieder bewegbaren Nadelbalken angebracht sind.18. The method according to one or more of claims 1 to 17, characterized in that the needles of the last needling stage are attached in groups or in sections to one or more needle bars movable up and down. 19. Verfahren nach Anspruch 18, dadurch gekennzeichnet, daß die Nadeln für das abschließende Vernadeln der Textilbahn entsprechend der gewünschten Musterung an dem oder den Nadelbalken des Nadelaggregats angeordnet sind.19. The method according to claim 18, characterized in that the needles for the final needling of the textile web are arranged according to the desired pattern on the needle bar or bars of the needle unit. 20. Verfahren nach einem oder mehreren der Ansprüche 1 bis 19, dadurch gekennzeichnet, daß in der letzten Ver­nadelungsstufe die Distanz der Nadeln relativ zur Ebene der Auflagefläche der Trägerbahn mechanisch, elektrisch oder hydraulisch auch während des Betriebs veränderbar ist.20. The method according to one or more of claims 1 to 19, characterized in that in the last needling stage, the distance of the needles relative to the plane of the support surface of the carrier web can be changed mechanically, electrically or hydraulically even during operation.
EP90106927A 1989-08-03 1990-04-11 Method for producing patterned textile needled felt or needled fleece sheets Expired - Lifetime EP0411248B1 (en)

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DE3925757 1989-08-03

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EP1273690A1 (en) * 2001-07-03 2003-01-08 Filzfabrik Fulda GmbH & Co. Method for producing a patterned textile wearing layer
FR2830542A1 (en) * 2001-10-10 2003-04-11 Cera Felted carpet manufacturing procedure consists of passing layer of fibres under rows of notched felting needles on parallel bars
EP1384802A2 (en) * 2002-07-25 2004-01-28 Filzfabrik GmbH & Co. KG Method for making a flat textile material and flat textile material
WO2004059061A1 (en) * 2002-12-20 2004-07-15 The Procter & Gamble Company Tufted laminate web
WO2009147051A1 (en) * 2008-06-05 2009-12-10 Entwicklungsgesellschaft für Akustik (EfA) mit beschränkter Haftung Velour rug with tufting-like surface
EP2332504A1 (en) * 2002-12-20 2011-06-15 The Procter & Gamble Company Tufted fibrous web
WO2020148147A1 (en) * 2019-01-15 2020-07-23 Adler Pelzer Holding Gmbh Motor vehicle floor covering, boot or trunk covering or load compartment covering having a structurally needle-punched carpet surface (ii)

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
ATA160899A (en) * 1999-09-21 2000-09-15 Fehrer Monika Mag DEVICE FOR NEEDING A PATTERNED FELT

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Publication number Priority date Publication date Assignee Title
EP1273690A1 (en) * 2001-07-03 2003-01-08 Filzfabrik Fulda GmbH & Co. Method for producing a patterned textile wearing layer
FR2830542A1 (en) * 2001-10-10 2003-04-11 Cera Felted carpet manufacturing procedure consists of passing layer of fibres under rows of notched felting needles on parallel bars
EP1384802A2 (en) * 2002-07-25 2004-01-28 Filzfabrik GmbH & Co. KG Method for making a flat textile material and flat textile material
EP1384802A3 (en) * 2002-07-25 2004-03-03 Filzfabrik GmbH & Co. KG Method for making a flat textile material and flat textile material
WO2004059061A1 (en) * 2002-12-20 2004-07-15 The Procter & Gamble Company Tufted laminate web
EP2332504A1 (en) * 2002-12-20 2011-06-15 The Procter & Gamble Company Tufted fibrous web
WO2009147051A1 (en) * 2008-06-05 2009-12-10 Entwicklungsgesellschaft für Akustik (EfA) mit beschränkter Haftung Velour rug with tufting-like surface
WO2020148147A1 (en) * 2019-01-15 2020-07-23 Adler Pelzer Holding Gmbh Motor vehicle floor covering, boot or trunk covering or load compartment covering having a structurally needle-punched carpet surface (ii)
CN113574219A (en) * 2019-01-15 2021-10-29 阿德勒佩尔泽控股有限公司 Motor vehicle floor covering, luggage compartment covering or cargo floor covering with a needle-punched structured carpet surface (II)

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EP0411248B1 (en) 1995-10-25
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