EP1103645B1 - Method for producing coloured patterns on a fabric by hydrodynamic treatment - Google Patents

Method for producing coloured patterns on a fabric by hydrodynamic treatment Download PDF

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Publication number
EP1103645B1
EP1103645B1 EP00119533A EP00119533A EP1103645B1 EP 1103645 B1 EP1103645 B1 EP 1103645B1 EP 00119533 A EP00119533 A EP 00119533A EP 00119533 A EP00119533 A EP 00119533A EP 1103645 B1 EP1103645 B1 EP 1103645B1
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EP
European Patent Office
Prior art keywords
layer
web
woven fabric
pattern
fibres
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Expired - Lifetime
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EP00119533A
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German (de)
French (fr)
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EP1103645A3 (en
EP1103645A2 (en
Inventor
Gerold Fleissner
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Truetzschler Nonwovens GmbH
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Fleissner GmbH
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Publication of EP1103645A3 publication Critical patent/EP1103645A3/en
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    • 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
    • D04H18/00—Needling machines
    • D04H18/04—Needling machines with water jets
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B11/00—Treatment of selected parts of textile materials, e.g. partial dyeing
    • D06B11/0056—Treatment of selected parts of textile materials, e.g. partial dyeing of fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C23/00—Making patterns or designs on fabrics

Definitions

  • the invention relates to a method for color-patterning a web-shaped Nonwoven or a composite of a nonwoven and a fabric or Knitted fabric by hydrodynamic needling, including the web on a substrate lying moved past a nozzle beam arranged transversely to the transport direction and is acted upon by the water jets.
  • a method of this kind is known from WO 89/09850. After this writing becomes a colored web over a plane provided with a three-dimensional pattern guided while exposed to water jets to a washout effect on the to achieve first color-neutral coloring.
  • a pattern without coloring is possible by means of the hydrodynamic treatment, when according to US-PS 4,691,417 or EP-A-0 400 349 the water jets on a sheet provided with a perforated pattern on the web such as nonwoven reach.
  • the jets of water meet only partially over their area on the fibers of the web and move them there just like a pattern a watermark.
  • the invention is based on the object, a method for obtaining a color Sampling to find a web, in which by means of a hydrodynamic Treatment creates a pattern that has any color, pattern type and size, without having to worry about washout effects.
  • the invention provides a solution the task stated that as an upper layer of two layers of an uncolored or one provided with one or more colors, possibly colored or printed nonwoven chosen, this on a second, possibly from other as well partially dyed Fasems composite or altogether another color laid nonwoven or woven and both layers of the fibers be subjected to displacing water jets, the undyed or colored fibers of the first layer are transferred to the second layer for Obtain a pattern on the underside of the second layer.
  • the nonwoven of the first layer can come directly from a clutter and has fine fibers of one or more colors.
  • This Fibers with the water jets are moved into and through the second layer. So it's not just the well-known consolidation of the tracks alone and with each other Instead, the fibers of the first nonwoven become the bottom of the second Come web and there by their own color a kind of pattern produce. This pattern can be influenced in many different ways.
  • a color pattern according to the invention can also be produced by replacing the dyed fibers of the first web the second web with z. B. dyed fibers produced is and then z. B. undyed fibers of the first web through the Water needling to the back of the colored second fleece penetrate and thus There on the bottom create a kind of pattern. Also this pattern can be influenced in many different ways.
  • the first nonwoven is still unconsolidated, it is a light carded fleece.
  • the second train can do the same a nonwoven, but already pre-consolidated - possibly by mechanical needling can be, or a woven or knitted fabric, by its internal thread structure imposing a definable direction on the fibers penetrating from the first nonwoven, which is then typical of the recoverable on the bottom pattern. It is also from Meaning, from which threads the second web is produced, it comes on their Thickness, on their properties and also on the strength of the thread structure of the second train.
  • the top-mounted, lightweight nonwoven polyester fibers and / or Produce polypropylene fibers and / or natural fibers Serves Here as a fleece laying device a card 1 - 4.
  • the card consists of a Box feeder 1 with an arranged below Scblinlrisone 2, the evenly over the width spread fibers of the carding with the scratching and tearing rollers 3 hands over.
  • the following endless belt 4 passes the loosely formed nonwoven 5 on the endless belt 6. This is already deducted from the roller 7, with 8th designated nonwoven or woven or knitted fabric, which together with the Endless belt 6 in the direction of arrow 9 to the needling station 10 moves.
  • the needling station 10 is thus a composite of two superimposed Lanes 5 and 8 supplied.
  • the pattern can be white or colored, depending on the the colors in lanes 5 or 8 are to be selected.
  • the first train is definitely a nonwoven 5, the second web 8 may be such, but it may also be a fabric or knitted fabric.
  • the fibers of the Nonwoven moved through the second web 8, and that to their on the band. 6 lying back.
  • the design of the pattern when using an element that uses the water jets directs can be the illustrated endless belt 12, a correspondingly arranged Drum, the design of the endless belt 6 or even a layer inside of the composite remains.
  • the endless belt 12 or the corresponding drum can be a braided fabric or formed from a metal sheet with a desired Pattern is perforated.

Description

Die Erfindung bezieht sich auf ein Verfahren zum farblichen Mustern eines bahnförmigen Nonwoven oder einem Komposit aus einem Nonwoven und einem Gewebe oder Gewirke mittels hydrodynamischer Vernadelung, wozu die Bahn auf einer Unterlage liegend an einem quer zur Transportrichtung angeordneten Düsenbalken vorbeibewegt und von den Wasserstrahlen beaufschlagt wird.The invention relates to a method for color-patterning a web-shaped Nonwoven or a composite of a nonwoven and a fabric or Knitted fabric by hydrodynamic needling, including the web on a substrate lying moved past a nozzle beam arranged transversely to the transport direction and is acted upon by the water jets.

Ein Verfahren dieser Art ist aus der WO 89/09850 bekannt. Nach dieser Schrift wird eine gefärbte Bahn über eine mit einem dreidimensionalen Muster versehene Ebene geführt und dabei mit Wasserstrahlen beaufschlagt, um einen Auswascheffekt an der noch zunächst farbunechten Einfärbung zu erzielen.A method of this kind is known from WO 89/09850. After this writing becomes a colored web over a plane provided with a three-dimensional pattern guided while exposed to water jets to a washout effect on the to achieve first color-neutral coloring.

Ein Muster ohne Einfärbung ist mittels der hydrodynamischen Behandlung möglich, wenn gemäß der US-PS 4 691 417 oder der EP-A-0 400 349 die Wasserstrahlen über ein mit einem perforierten Muster versehenes Blech auf die Warenbahn wie Nonwoven gelangen. Die Wasserstrahlen treffen dabei über deren Fläche gesehen nur teilweise auf die Fasern der Warenbahn und verschieben sie nur dort zu einem Muster ähnlich einem Wasserzeichen.A pattern without coloring is possible by means of the hydrodynamic treatment, when according to US-PS 4,691,417 or EP-A-0 400 349 the water jets on a sheet provided with a perforated pattern on the web such as nonwoven reach. The jets of water meet only partially over their area on the fibers of the web and move them there just like a pattern a watermark.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Erzielung einer farblichen Bemusterung einer Warenbahn zu finden, bei dem mittels einer hydrodynamischen Behandlung ein Muster entsteht, das beliebige Farben, Musterarten und -größen aufweist, ohne auf Auswascheffekte achten zu müssen.The invention is based on the object, a method for obtaining a color Sampling to find a web, in which by means of a hydrodynamic Treatment creates a pattern that has any color, pattern type and size, without having to worry about washout effects.

Ausgehend von dem Verfahren anfangs genannter Art sieht die Erfindung zur Lösung der gestellten Aufgabe vor, dass als Oberschicht von zwei Schichten ein ungefärbtes oder ein mit einer oder mehreren Farben versehenes, ggf. eingefärbtes oder bedrucktes Nonwoven gewählt, dieses auf ein zweites, ggf. aus anderen wie auch teilweise eingefärbten Fasems zusammengesetztes oder insgesamt eine andere Farbe aufweisendes Nonwoven oder Woven gelegt und beide Schichten den die Fasern verlagernden Wasserstrahlen unterworfen werden, wobei die ungefärbten oder gefärbten Fasern der ersten Schicht in die zweite Schicht verlagert werden zur Erzielung eines Musters auf der Unterseite der zweiten Schicht.Starting from the method of the type mentioned initially, the invention provides a solution the task stated that as an upper layer of two layers of an uncolored or one provided with one or more colors, possibly colored or printed nonwoven chosen, this on a second, possibly from other as well partially dyed Fasems composite or altogether another color laid nonwoven or woven and both layers of the fibers be subjected to displacing water jets, the undyed or colored fibers of the first layer are transferred to the second layer for Obtain a pattern on the underside of the second layer.

Das Nonwoven der ersten Schicht kann unmittelbar von einer Krempel kommen und weist feine Fasern einer oder verschiedener Farben auf. Bei der Beaufschlagung dieser Fasern mit den Wasserstrahlen werden sie in und durch die zweite Schicht bewegt. Es findet also nicht nur die bekannte Verfestigung der Bahnen allein und miteinander statt, sondern die Fasern des ersten Nonwoven werden bis zur Unterseite der zweiten Warenbahn gelangen und dort durch ihre eigene Farbe ein irgendwie geartetes Muster erzeugen. Dieses Muster kann auf die unterschiedlichste Art beeinflusst werden.The nonwoven of the first layer can come directly from a clutter and has fine fibers of one or more colors. When applying this Fibers with the water jets are moved into and through the second layer. So it's not just the well-known consolidation of the tracks alone and with each other Instead, the fibers of the first nonwoven become the bottom of the second Come web and there by their own color a kind of pattern produce. This pattern can be influenced in many different ways.

Ein Farbmuster nach der Erfindung kann auch dadurch erzeugt werden, dass statt der gefärbten Fasern des ersten Vlieses die zweite Bahn mit z. B. gefärbten Fasern produziert ist und dann z. B. ungefärbte Fasern des ersten Vlieses durch die Wasservernadelung bis zur Rückseite des farbigen zweiten Vlieses dringen und damit dort auf der Unterseite ein irgendwie geartetes Muster erzeugen. Auch dieses Muster kann auf die unterschiedlichste Art beeinflusst werden.A color pattern according to the invention can also be produced by replacing the dyed fibers of the first web the second web with z. B. dyed fibers produced is and then z. B. undyed fibers of the first web through the Water needling to the back of the colored second fleece penetrate and thus There on the bottom create a kind of pattern. Also this pattern can be influenced in many different ways.

Für die Erzeugung eines Musters auf der Rückseite der zweiten Warenbahn mit den Fasern des ersten Vlieses ist es zunächst wichtig, dass diese durch die Wasserstrahlen leicht bewegbar, also feintitrig wie 1 - 6 dtex in ihrem Durchmesser sind und eine endliche Länge von 20 bis 100 mm aufweisen. Jedenfalls ist das erste Nonwoven noch unverfestigt, es ist ein leichtes Krempelvlies. Die zweite Bahn dagegen kann ebenfalls ein Nonwoven, das aber bereits - ggf. durch mechanische Vernadelung - vorverfestigt sein kann, oder ein Gewebe oder Gewirke sein, das durch seine innere Fadenstruktur den vom ersten Nonwoven eindringenden Fasern eine definierbare Richtung aufzwingt, die dann typisch für das auf der Unterseite erzielbare Muster ist. Dabei ist es auch von Bedeutung, aus welchen Fäden die zweite Bahn erzeugt ist, es kommt auf deren Dicke, auf deren Eigenschaften und auch auf die Festigkeit der Fadenstruktur der zweiten Bahn an.For the production of a pattern on the back of the second web with the Fibers of the first fleece, it is first important that these through the water jets easily movable, that is fine denitrated like 1 - 6 dtex in diameter and one have a finite length of 20 to 100 mm. Anyway, the first nonwoven is still unconsolidated, it is a light carded fleece. The second train, on the other hand, can do the same a nonwoven, but already pre-consolidated - possibly by mechanical needling can be, or a woven or knitted fabric, by its internal thread structure imposing a definable direction on the fibers penetrating from the first nonwoven, which is then typical of the recoverable on the bottom pattern. It is also from Meaning, from which threads the second web is produced, it comes on their Thickness, on their properties and also on the strength of the thread structure of the second train.

Ganz andere Farbmuster sind erzielbar, wenn man ein drittes Mittel zur Lenkung der Wasserstrahlen in eine gewünschte Richtung hinzunimmt. Dieses Mittel kann vor, zwischen den beiden Schichten oder auch unterhalb der zweiten Bahn angeordnet sein. Im Falle der Anordnung des Elementes zwischen den Bahnen ist es selbstverständlich, dass es in dem Gesamtprodukt auf Dauer verbleibt. Anders ist es, wenn z. B. mittels eines mit einem Muster durchlässigen Endlosbandes oder Trommel, die unmittelbar auf dem Nonwoven abrollt, die Wasserstrahlen auf das erste Vlies gelenkt werden. Damit werden nur partiell die z. B. gefärbten Fasern des ersten Vlieses durch die zweite Bahn befördert, so dass nur an diesen Stellen eine Verfärbung der Rückseite der zweiten Bahn, eine Mustergebung erfolgt.Completely different color patterns are achievable if one uses a third means of steering the Water jets in a desired direction hinzunimmt. This remedy may be before, between the two layers or even be arranged below the second path. In the case of the arrangement of the element between the tracks, it goes without saying that it remains permanently in the overall product. It is different if z. B. by means a pattern-permeable endless belt or drum, which is immediately on rolls the nonwoven, the water jets are directed to the first fleece. In order to are only partially z. B. dyed fibers of the first web through the second Conveyed so that only at these places a discoloration of the back of the second course, a patterning takes place.

Eine Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens ist in der Zeichnung beispielhaft dargestellt. Sie besteht nur aus an sich bekannten Vorrichtungsdetails. In diesem Zusammenhang wird auf die US-A-5 114 729 verwiesen, nach der es bekannt ist, zur farblosen Musterung die Fasern eines Vlieses in die Öffnungen eines Siebes zu verbringen. Von Bedeutung ist auch die US-A-4 691 417, nach der es bekannt ist, zwischen einem Wasserbalken und einer farblos, dreidimensional zu musternden Warenbahn eine gelochte Trommel anzuordnen, um die Muster der Trommelöffnungen auf die Warenbahn zu übertragen. Die Figur zeigt eine Kontinueanlage zur Herstellung eines farbig gemusterten Nonwoven mit abschließender Trocknung.An apparatus for carrying out the method according to the invention is in the Drawing exemplified. It consists only of known device details. In this connection, reference is made to US-A-5 114 729, according to it is known to the colorless pattern, the fibers of a fleece in the openings to spend a sieve. Of importance is also US-A-4,691,417, according to which is known, between a water bar and a colorless, three-dimensional too mustering pattern a perforated drum to arrange the pattern of Transfer drum openings on the web. The figure shows a Continuous plant for the production of a colored patterned nonwoven with final drying.

Zunächst ist das oben aufliegende, leichte Nonwoven aus Polyesterfasern und/oder Polypropylenfasern und/oder auch aus natürlichen Fasern herzustellen. Dazu dient hier als Vlieslegeeinrichtung eine Krempel 1 - 4. Die Krempel besteht aus einem Kastenspeiser 1 mit einer darunter angeordneten Schüttelrutsche 2, die die gleichmäßig über die Breite ausgebreiteten Fasern der Krempel mit den Kratz- und Reißwalzen 3 übergibt. Das folgende Endlosband 4 übergibt das locker gebildete Nonwoven 5 an das Endlosband 6. Auf diesem liegt bereits ein von der Rolle 7 abgezogenes, mit 8 bezeichnetes Nonwoven oder Gewebe oder Gewirke, das sich zusammen mit dem Endlosband 6 in Richtung des Pfeils 9 zur Vernadelungsstation 10 bewegt.Initially, the top-mounted, lightweight nonwoven polyester fibers and / or Produce polypropylene fibers and / or natural fibers. Serves Here as a fleece laying device a card 1 - 4. The card consists of a Box feeder 1 with an arranged below Schüttelrutsche 2, the evenly over the width spread fibers of the carding with the scratching and tearing rollers 3 hands over. The following endless belt 4 passes the loosely formed nonwoven 5 on the endless belt 6. This is already deducted from the roller 7, with 8th designated nonwoven or woven or knitted fabric, which together with the Endless belt 6 in the direction of arrow 9 to the needling station 10 moves.

Der Vernadelungsstation 10 wird also ein Komposit aus zwei übereinander liegenden Bahnen 5 und 8 zugeführt. Um durch die Wasserstrahlen von dem Balken 11 ein Farbmuster auf der Unterseite der Bahn 8 erzeugen zu können, besteht entweder das Nonwoven 5 aus gefärbten Fasern und/oder die Bahn 8 aus solchen, die dann aber eine andere Farbe haben sollten. Das Muster kann weiß oder farbig sein, je nach dem sind die Farben in den Bahnen 5 oder 8 auszuwählen. Die erste Bahn ist auf jeden Fall ein Nonwoven 5, die zweite Bahn 8 kann ein solches sein, sie kann aber auch ein Gewebe oder Gewirke sein.The needling station 10 is thus a composite of two superimposed Lanes 5 and 8 supplied. To enter through the jets of water from the beam 11 a To create color patterns on the underside of the web 8, there is either the Nonwoven 5 of dyed fibers and / or the web 8 of such, but then should have a different color. The pattern can be white or colored, depending on the the colors in lanes 5 or 8 are to be selected. The first train is definitely a nonwoven 5, the second web 8 may be such, but it may also be a fabric or knitted fabric.

Durch die Wasserstrahlen vom Balken 11, die mit größerer Energie wie z. B. über 200 bar, vorzugsweise 350 bar, auf das Nonwoven 5 treffen sollten, werden die Fasern des Nonwoven durch die zweite Bahn 8 bewegt, und zwar bis zu deren auf dem Band 6 liegenden Rückseite. Je nach der Struktur der Bahn 8 oder des Endlosbandes 6 oder der Lenkung der Wasserstrahlen oberhalb der Bahn 8 oder Bahn 5 entsteht ein anderes Farbmuster auf der Rückseite der Bahn 8. Besonders gut kann man die Gestaltung des Musters beeinflussen, wenn dazu ein Element benutzt wird, das die Wasserstrahlen lenkt. Dies kann das dargestellte Endlosband 12, eine entsprechend angeordnete Trommel, die Gestaltung des Endlosbandes 6 oder auch eine Schicht sein, die innerhalb des Komposits verbleibt. Das Endlosband 12 oder die entsprechende Trommel kann ein geflochtenes Gewebe oder aus einem Blech gebildet sein, das mit einem gewünschten Muster perforiert ist. Nur an den für den Durchtritt des Wassers offenen Löchern im Endlosband 12 oder in der Trommel wird eine Bewegung der Fasern des Nonwoven 5 in die Bahn 8 erfolgen. Folglich wird auch nur an diesen Stellen auf der Rückseite der Bahn 8 eine Veränderung der Faserzusammensetzung erfolgen, die das gewünschte Muster bringt.By the water jets from the beam 11, which with greater energy such. Over 200 bar, preferably 350 bar, to which nonwoven 5 should hit, are the fibers of the Nonwoven moved through the second web 8, and that to their on the band. 6 lying back. Depending on the structure of the web 8 or the endless belt 6 or the steering of the water jets above the web 8 or 5 web creates another Color pattern on the back of the web 8. Especially good is the design of the pattern when using an element that uses the water jets directs. This can be the illustrated endless belt 12, a correspondingly arranged Drum, the design of the endless belt 6 or even a layer inside of the composite remains. The endless belt 12 or the corresponding drum can be a braided fabric or formed from a metal sheet with a desired Pattern is perforated. Only at the open for the passage of water Holes in the endless belt 12 or in the drum, a movement of the fibers of the Nonwovens 5 take the train 8. Consequently, only at these places on the Back of the web 8, a change in the fiber composition take place, the desired pattern brings.

Nach einer Entwässerung durch die Absaugung 13, die auch hinter der Vemadelungsstation 10 erfolgen kann, wird die Bahn durch das Endlosband 14 in den Siebtrommeltrockner 15 geführt.After a drainage through the suction 13, which also behind the Vemadelungsstation 10 can be made, the web is through the endless belt 14 in the Siebtrommeltrockner 15 led.

Claims (9)

  1. Method of producing coloured patterns on a web-like non-woven fabric or on a composite material formed from a non-woven fabric and a woven or knitted fabric by means of hydrodynamic needling, the web for such purpose lying on a base and moving past a nozzle bar, which is disposed transversely relative to the direction of conveyance, and said web being acted upon by the water jets, characterised in that a non-dyed non-woven fabric, or a non-woven fabric which is provided with one or more colours and is possibly dyed or printed, is selected as the upper layer of two layers, said non-woven fabric is placed upon a second non-woven fabric, which is possibly composed of other fibres as well as partially dyed fibres or generally has one other colour, and both layers are subjected to the water jets which displace the fibres, the non-dyed or dyed fibres of the first layer being displaced into the second layer in order to yield a pattern on the underside of the second layer.
  2. Method according to claim 1, characterised in that the second non-woven fabric is pre-strengthened, possibly mechanically pre-needled, prior to being joined to the first layer.
  3. Method according to claim 1 or 2, characterised in that the coloured pattern is influenced by the structure of the second layer.
  4. Method according to claims 1 to 3, characterised in that the coloured pattern is influenced by the composition of the fibres, by the type and properties of the fibres of the first layer and/or of the second layer.
  5. Method according to one of claims 1 to 4, characterised in that the pattern is produced by the configuration of an element which determines the distribution of the water jets over the web.
  6. Method according to claim 5, characterised in that the element acts in front of or between the two webs.
  7. Method according to one of claims 1 to 6, characterised in that the pattern is influenced by the configuration of a conveyor means carrying the web.
  8. Method according to one of claims 1 to 7, characterised in that the water jets encounter the fibres of the first non-woven fabric with a high level of energy, e.g. with pressures greater than 150 bar, preferably between 250 and 600 bar.
  9. Method according to one of claims 1 to 7, characterised in that the energy of the water pressure is dimensioned in dependence on the weight of the first layer, that is to say with lower pressures (up to 150 bar) for lighter non-woven fabrics (30 to 100 gr/m2).
EP00119533A 1999-11-24 2000-09-07 Method for producing coloured patterns on a fabric by hydrodynamic treatment Expired - Lifetime EP1103645B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19956571 1999-11-24
DE19956571A DE19956571A1 (en) 1999-11-24 1999-11-24 Method and device for color patterning a web by means of hydrodynamic treatment

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EP1103645A2 EP1103645A2 (en) 2001-05-30
EP1103645A3 EP1103645A3 (en) 2002-12-18
EP1103645B1 true EP1103645B1 (en) 2005-03-30

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US20020148085A1 (en) 2002-10-17
DE50009908D1 (en) 2005-05-04
US6557224B2 (en) 2003-05-06
US6735834B2 (en) 2004-05-18
US20030101557A1 (en) 2003-06-05
US6487762B1 (en) 2002-12-03
DE19956571A1 (en) 2001-05-31
EP1103645A3 (en) 2002-12-18
EP1103645A2 (en) 2001-05-30

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