EP0133198B1 - Method and apparatus for making a non twisted crimped yarn from at least two bundles of filaments having different colours or dyeing properties - Google Patents

Method and apparatus for making a non twisted crimped yarn from at least two bundles of filaments having different colours or dyeing properties Download PDF

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Publication number
EP0133198B1
EP0133198B1 EP84104348A EP84104348A EP0133198B1 EP 0133198 B1 EP0133198 B1 EP 0133198B1 EP 84104348 A EP84104348 A EP 84104348A EP 84104348 A EP84104348 A EP 84104348A EP 0133198 B1 EP0133198 B1 EP 0133198B1
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EP
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Prior art keywords
arrangement according
thread
thread guide
filament bundle
bundles
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EP84104348A
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German (de)
French (fr)
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EP0133198A3 (en
EP0133198A2 (en
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Horst Dietrichs
Diethard Hübner
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Neumuenstersche Maschinen und Apparatebau GmbH
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Neumuenstersche Maschinen und Apparatebau GmbH
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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/20—Combinations of two or more of the above-mentioned operations or devices; After-treatments for fixing crimp or curl

Definitions

  • the invention relates to a method according to the preamble of claim 1 and an arrangement according to the preamble of claim 4.
  • Colored yarns made from endless synthetic fibers are produced by mixing several bundles of threads of different colors or dyeability. They are used for the manufacture of textile piece goods, in particular carpets and upholstery fabrics.
  • the individual components In order to achieve a pleasing, lively colorful effect on the end product, the individual components should be evenly mottled. The average distance between the crossings of the differently colored components is of great importance for the overall impression of the finished piece goods. In general, the interlacing must not be so intense that the individual components no longer stand out separately; such complete mixing leads to a low-contrast, dull appearance of the piece goods. On the other hand, the average distance between the interconnections should not be too large, because this easily creates a garish, unbalanced impression.
  • the value of the yarn is reduced if, due to accidental interference or systematic influences, individual colors or structures alternate over longer distances. This leads to undesired stripes, streaks or moire-like structures on the finished piece.
  • the interdependency is not very controllable - and depends on random factors, e.g. of fluctuations in pressure, temperature or thread tension. If the process parameters change, e.g. Thread titer or throughput speed, the effect on the color structure of the finished yarn is not readily predictable. Therefore, it is difficult to reproducibly set and keep a desired effect constant.
  • a disadvantage of pneumatic swirling is also the high air consumption and the high noise level caused by the escaping air.
  • the present invention has for its object to provide a method of the type specified in the preamble of claim 1, with which a desired color structure can be selected from a wider range of possibilities and produced in a reproducible manner.
  • the second task is to provide an arrangement with which the method can be carried out easily and with little effort.
  • the first-mentioned object is achieved according to the invention by the measures specified in the characterizing part of claim 1.
  • the invention is based on the knowledge that the color structure of the crimped yarn can be influenced by changing the relative arrangement of the individual threads entering the crimp in short time intervals.
  • the measure specified in claim 2 leads to an improvement in the cohesion of the crimped yarn.
  • the method can be carried out according to claim 3 in the course of a multi-stage overall process, so that a special operation for the production of the colored yarn is not required.
  • the second object is achieved by the characterizing features of claim 4.
  • Claim 6 specifies another, also very simple version of a traversing thread guide.
  • the embodiment according to claim 7 is characterized by a particular variety of possible variations.
  • the feature of claim 9 opens up a possibility of variation without increased effort.
  • the feature of claim 10 enables simplification in most cases, one or more threads remaining unchanged.
  • the cohesion of the yarn can be improved behind the crimping device.
  • Suitable crimping devices belong to the prior art. This includes e.g. a pneumatic crimping chamber according to US Pat. No. 3,849,844, a compression crimping chamber according to GB-PS 1,057,417 or a gear crimping device according to DE-AS 1 292 302.
  • a second thread b is guided over a slit drum 4, which on its outer surface in a known manner is provided in a returning thread guide groove and rotates in an axis parallel to the axis of the thread guide roller 1.
  • the thread b lying in the thread guide groove is moved in a known manner in the direction of the drum axis, i.e. transversely to its direction of movement and the direction of movement of the thread a, back and forth.
  • the slot drum 4 and the thread guide roller 1 are arranged parallel to the axis and relative to one another such that the central plane of the thread guide roller 1 lies approximately in the middle of the traversing area of the slot drum 4. Therefore, the thread b is guided alternately on one side and on the other side of the thread a onto the godet 2, as illustrated in FIG. 2. In the mutual position that the threads a and b occupy on the godet 2, they are drawn into the crimping device 3.
  • the thread produced in this way shows a color change which is caused by changing the traversing speed, i.e. by changing the speed of the slit drum 4, in a predictable and reproducible manner.
  • the traversing speed is limited by the speed of the thread and the distance between slotted drum 4 and godet 2 upwards.
  • the duration of a single stroke of the traversing should be at least as long as the time it takes for a certain point on the thread to get from the slit drum 4 to the godet 2 or, generally speaking, to a point behind which the relative position of the individual threads is can not change until it enters the crimping device.
  • the maximum traversing speed is greater for a given thread speed, the shorter the distance between slot drum 4 and godet 2 is kept.
  • the threads a and b On the godet 9, to which the threads a and b as well as the thread c arrive, the threads a and b therefore run alternately on one and on the other side of the thread c, which is in the middle, as in FIG. 4 indicated.
  • the threads reach the drafting device 11 from the godet 9, their mutual position remaining unchanged.
  • the threads are drawn into the crimping device 12.
  • a mixed thread emerges from the crimping device 12, the color structure of which is determined by the speed of the slit drum 10.
  • the thread For the purpose of cooling, the thread is deposited on a sieve drum 13 and from there in the usual way to a winding unit 14.
  • the machine partially shown in FIG. 3a differs from the machine according to FIG. 3 in that instead of the slot drums 10 there are two slot drums 10a and 10b arranged one above the other, the axes of which are slightly offset from one another in the horizontal direction. Each of the threads a, b is therefore guided on its own slit drum without touching the other.
  • the slot drums 10a and 10b can be driven at different speeds.
  • the points of interweaving of thread a with thread c have the same distances as the points of interweaving of thread b with thread c.
  • the spacing of the interweaving points for thread a can be greater or smaller than that of thread b as desired. Accordingly, the device according to FIG. 3a offers even more possibilities for arbitrarily changing the play of colors.
  • FIG. 5 shows a spin draw texturing system Machine in which three differently colored or differently dyeable threads a, b, c are drawn off from the nozzles 17, 18, 19 of the spinning beam 20 by means of a take-off godet 15 with a feed roller 16. Between the withdrawal godet 15 and drafting device 21, the threads a and b are guided, for example, by stationary thread guides, not shown, so that they maintain their position constantly.
  • a traversing thread guide 22 is provided for guiding the thread c, the traversing region of which lies symmetrically to the center line between the two threads a and b and is approximately twice as large as the distance between the threads a and b.
  • the thread b runs alternately on one side, in the intermediate space and on the other side of the threads a and b in the drafting device 21, as illustrated in FIG. 6.
  • the crimped mixed yarn is cooled on the sieve drum 24 and then intertwined in the interlacing nozzle 25 in order to improve the thread retention.
  • Such interlacing nozzles belong to the prior art; a suitable interlacing nozzle is described for example in GB-PS 924 089.
  • the centerpiece of the traversing thread guide 22 in the exemplary embodiment according to FIGS. 5 and 6 is a piston-cylinder unit, a thread guide eyelet 27 being connected to the piston.
  • the piston-cylinder unit is actuated by a time switch, not shown. Depending on the desired effect, the time intervals between the individual movements can be constant, changed periodically or fluctuate statistically around an average.

Description

Die Erfindung betrifft ein Verfahren gemäß dem Oberbegriff des Anspruchs 1 und eine Anordnung gemäß dem Oberbegriff des Anspruchs 4.The invention relates to a method according to the preamble of claim 1 and an arrangement according to the preamble of claim 4.

Buntgarne aus endlosen Synthesefasern werden durch Vermischen mehrerer Fadenbündel unterschiedlicher Farbe oder Färbbarkeit hergestellt. Sie werden für die Herstellung von textilen Stückwaren, insbesondere von Teppichen und Polsterstoffen verwendet. Um an dem Endprodukt einen gefälligen, lebendigen Bunteffekt zu erreichen, sollen die einzelnen Komponenten gleichmäßig meliert sein. Für den Gesamteindruck der fertigen Stückware ist dabei der mittlere Abstand zwischen den Überkreuzungen der verschieden gefärbten Komponenten von großer Bedeutung. Im allgemeinen darf die Verflechtung nicht so intensiv sein, daß die Einzelkomponenten nicht mehr gesondert hervortreten; eine solche völlige Durchmischung führt zu einem kontrastarmen, stumpfen Aussehen der Stückware. Andererseits soll der Durchschnittsabstand zwischen den Verflechtungen nicht zu groß sein, weil dadurch leicht ein greller, unausgewogener Eindruck entsteht. Selbstverständlich werden je nach Art der Farben, nach Qualität, Verwendungszweck und Geschmacksrichtung unterschiedliche Anforderungen gestellt. In jedem Falle wird der Wert des Garns gemindert, wenn durch zufällige Störeffekte oder durch systematische Einflüsse abwechselnd einzelne Farben oder Strukturen über längere Strecken dominieren. Dies führt am fertigen Stück zu unerwünschten Streifen, Schlieren oder moireartigen Strukturen.Colored yarns made from endless synthetic fibers are produced by mixing several bundles of threads of different colors or dyeability. They are used for the manufacture of textile piece goods, in particular carpets and upholstery fabrics. In order to achieve a pleasing, lively colorful effect on the end product, the individual components should be evenly mottled. The average distance between the crossings of the differently colored components is of great importance for the overall impression of the finished piece goods. In general, the interlacing must not be so intense that the individual components no longer stand out separately; such complete mixing leads to a low-contrast, dull appearance of the piece goods. On the other hand, the average distance between the interconnections should not be too large, because this easily creates a garish, unbalanced impression. Of course, there are different requirements depending on the type of colors, quality, purpose and taste. In any case, the value of the yarn is reduced if, due to accidental interference or systematic influences, individual colors or structures alternate over longer distances. This leads to undesired stripes, streaks or moire-like structures on the finished piece.

Durch die DE-PS 24 07 499 ist bereits ein Verfahren bekannt, bei dem die Vermischung der Einzelfäden mit Hilfe von Luftstrahlen erfolgt, die unter unterschiedlichen Winkeln auf das durchlaufende Garn auftreffen. Die einzelnen Garnkomponenten werden von Spulen abgezogen, einem Streckwerk zugeführt, zusammengeführt und vor dem.. Vermischen gemeinsam einer pneumatischen Kräuselvorrichtung zugeführt, gekühlt und fixiert. Da die Komponenten parallel und in gleichbleibender relativer Lage in die Kräuselkammer einlaufen, hat das gekräuselte Garn beim Austritt aus der Kräuselkammer noch deutlich erkennbare parallele Adern. Diese werden zwar anschließend durch die auftreffenden Luftstrahlen miteinander verflochten. Allerdings wird die Verflechtung durch die bei der Kräuselung eingetretene gegenseitige Verhakung der Filamente behindert. Außerdem ist die Verflechtung nur wenig steuerbar-und hängt von Zufallseinflüssen ab, z.B. von Schwankungen des Druckes, der Temperatur oder der Fadenspannung. Bei einer Änderung der Verfahrensparameter, z.B. Fadentiter oder Durchlaufgeschwindigkeit, ist der Effekt auf die Farbstruktur des fertigen Garns nicht ohne weiteres voraussehbar. Daher ist es schwierig, einen gewünschten Effekt in reproduzierbarer Weise einzustellen und konstant zu halten. Ein Nachteil der pneumatischen Verwirbelung ist auch der hohe Luftverbrauch und der durch die austretende Luft verursachte hohe Geräuschpegel.From DE-PS 24 07 499 a method is already known in which the mixing of the individual threads takes place with the aid of air jets which impinge on the yarn passing through at different angles. The individual yarn components are drawn off from bobbins, fed to a drafting system, brought together and, before mixing, fed together to a pneumatic crimping device, cooled and fixed. Since the components enter the crimping chamber in parallel and in a constant relative position, the crimped yarn still has clearly recognizable parallel veins when it emerges from the crimping chamber. These are then intertwined with one another by the impinging air jets. However, the interweaving is hampered by the mutual interlocking of the filaments that occurred during the crimping. In addition, the interdependency is not very controllable - and depends on random factors, e.g. of fluctuations in pressure, temperature or thread tension. If the process parameters change, e.g. Thread titer or throughput speed, the effect on the color structure of the finished yarn is not readily predictable. Therefore, it is difficult to reproducibly set and keep a desired effect constant. A disadvantage of pneumatic swirling is also the high air consumption and the high noise level caused by the escaping air.

Neben zahlreichen bekannten Verfahren, die ähnlich wie das oben beschriebene Verfahren von aufgewickelten Fäden ausgehen, is es durch die DE-OS 21 42 652 auch schon bekannt, die Verfahrensschritte Spinnen-Strecken-Kräuseln-Mischen-Aufwickeln in einem kontinuierlichen Durchlaufverfahren miteinander zu vereinigen. Auch bei diesem Verfahren erfolgt die Vermischung der Komponenten hinter der Kräuselung mit Hilfe von Düsenstrahlen. Durch die Vermischung soll dabei das Garn zu einer zusammenhängenden Einheit verflochten werden.In addition to numerous known processes which, similar to the process described above, are based on wound threads, it is already known from DE-OS 21 42 652 to combine the process steps spinning-drawing-crimping-mixing-winding in a continuous continuous process. In this process, too, the components are mixed behind the crimp with the aid of nozzle jets. The yarn should be interwoven to form a coherent unit.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Verfahren der im Oberbegriff des Anspruchs 1 angegebenen Gattung zu schaffen, mit dem eine gewünschte Farbstruktur aus einem breiteren Spektrum von Möglichkeiten ausgewählt und in reproduzierbarer Weise hergestellt werden kann. Die zweite Aufgabe besteht darin, eine Anordnung anzugeben, mit der das Verfahren einfach und mit geringem Aufwand durchgeführt werden kann.The present invention has for its object to provide a method of the type specified in the preamble of claim 1, with which a desired color structure can be selected from a wider range of possibilities and produced in a reproducible manner. The second task is to provide an arrangement with which the method can be carried out easily and with little effort.

Die erstgenannte Aufgabe wird erfindungsgemäß durch die im Kennzeichen des Anspruchs 1 angegebenen Maßnahmen gelöst. Der Erfindung beruht auf der Erkenntnis, daß die farbliche Struktur des gekräuselten Garns sich beeinflussen läßt, indem man die relative Anordnung der in die Kräuselung einlaufenden Einzelfäden in kurzen Zeitabständen ändert.The first-mentioned object is achieved according to the invention by the measures specified in the characterizing part of claim 1. The invention is based on the knowledge that the color structure of the crimped yarn can be influenced by changing the relative arrangement of the individual threads entering the crimp in short time intervals.

Die in Anspruch 2 angegebene Maßnahme führt zu einer Verbesserung des Zusammenhalts des gekräuselten Garns.The measure specified in claim 2 leads to an improvement in the cohesion of the crimped yarn.

Das Verfahren kann gemäß Anspruch 3 im Zug eines mehrstufigen Gesamtprozesses durchgeführt werden, so daß ein besonderer Arbeitsgang für die Herstellung des Buntgarns nicht erforderlich ist.The method can be carried out according to claim 3 in the course of a multi-stage overall process, so that a special operation for the production of the colored yarn is not required.

Durch die kennzeichnenden Merkmale des Anspruchs 4 wird die zweite Aufgabe gelöst.The second object is achieved by the characterizing features of claim 4.

In Anspruch 5 ist eine bevorzugte Ausführung des Changferfadenführers angegeben.In claim 5, a preferred embodiment of the Changfer thread guide is given.

Anspruch 6 gibt eine andere, ebenfalls sehr einfache Ausführung eines Changierfadenführers an.Claim 6 specifies another, also very simple version of a traversing thread guide.

Die Ausführung gemäß Anspruch 7 zeichnet sich durch eine besondere Vielfalt von Variationsmöglichkeiten aus.The embodiment according to claim 7 is characterized by a particular variety of possible variations.

Eine andere Variationsmöglichkeit wird mit dem Merkmal des Anspruchs 8 erzielt.Another possible variation is achieved with the feature of claim 8.

Durch das Merkmal des Anspruchs 9 wird eine Variationsmöglichkeit ohne erhöhten Aufwand eröffnet.The feature of claim 9 opens up a possibility of variation without increased effort.

Das Merkmal des Anspruchs 10 ermöglicht in den meisten Fällen eine Vereinfachung, wobei ein Faden oder mehrere Fäden unchangiert bleiben.The feature of claim 10 enables simplification in most cases, one or more threads remaining unchanged.

Eine bevorzugte Anordnung ist in Anspruch 11 angegeben.A preferred arrangement is specified in claim 11.

Mit der Verwirbelungsdüse gemäß Anspruch 12 läßt sich hinter der Kräuselvorrichtung der Zusammenhalt des Garns verbessern.With the intermingling nozzle according to claim 12, the cohesion of the yarn can be improved behind the crimping device.

Die Zeichnung dient zur Erläuterung der Erfindung anhand von vereinfachten, schematisch dargestellten Ausführungsbeispielen.

  • Figur 1 zeigt in Seitenansicht eine einfache Anordnung gemäß der Erfindung.
  • Figur 2 zeigt die Anordnung gemäß Figur 1 in einer Ansicht gemäß Pfeil A.
  • Figur 3 zeigt eine Seitenansicht einer Strecktexturiermaschine mit einer erfindungsgemäßen Anordnung.
  • Figur 3a zeigt teilweise eine abgewandelte Anordnung in einer Ansicht entsprechend Figur 3.
  • Figur 4 zeigt in größerem Maßstab eine Teilansicht der Maschine gemäß Figur 3 gemäß Pfeil B.
  • Figur 5 zeigt eine Seitenansicht einer Spinnstrecktexturiermaschine mit einer anderen erfindungsgemäßen Anordnung.
  • Figur 6 zeigt in größerem Maßstab die Maschine gemäß Figur 5 in einer Teilansicht gemäß Pfeil C.
The drawing serves to explain the invention using simplified, schematically illustrated exemplary embodiments.
  • Figure 1 shows a side view of a simple arrangement according to the invention.
  • FIG. 2 shows the arrangement according to FIG. 1 in a view according to arrow A.
  • FIG. 3 shows a side view of a stretch texturing machine with an arrangement according to the invention.
  • FIG. 3a partially shows a modified arrangement in a view corresponding to FIG. 3.
  • FIG. 4 shows a partial view of the machine according to FIG. 3 according to arrow B on a larger scale.
  • FIG. 5 shows a side view of a spin-draw texturing machine with another arrangement according to the invention.
  • FIG. 6 shows the machine according to FIG. 5 on a larger scale in a partial view according to arrow C.

Bei der Anordnung gemäß Figur 1 und Figur 2 wird ein aus mehreren synthetischen Filamenten bestehendes Fadenbündel a, im folgenden kurz als "Faden" bezeichnet, über eine Fadenführungsrolle 1 und eine Galette 2 einer Kräuselvorrichtung 3 zugeführt. Geeignete Kräuselvorrichtungen gehören zum Stand der Technik. Hierzu gehört z.B. eine pneumatische Kräuselkammer gemäß US-PS 3 849 844, eine Stauchkräuselkammer gemäß GB-PS 1 057 417 oder eine Zahnradkräuselvorrichtung gemäß DE-AS 1 292 302. Ein zweiter Faden b wird über eine Schlitztrommel 4 geführt, die auf ihrer Mantelfläche in bekannter Weise mit einer in sich zurücklaufenden Fadenführungsnut versehen ist und im eine zur Achse der Fadenführungsrolle 1 parallele Achse rotiert.In the arrangement according to FIG. 1 and FIG. 2, a bundle of threads a consisting of several synthetic filaments, hereinafter referred to briefly as "thread", is fed via a thread guide roller 1 and a godet 2 to a crimping device 3. Suitable crimping devices belong to the prior art. This includes e.g. a pneumatic crimping chamber according to US Pat. No. 3,849,844, a compression crimping chamber according to GB-PS 1,057,417 or a gear crimping device according to DE-AS 1 292 302. A second thread b is guided over a slit drum 4, which on its outer surface in a known manner is provided in a returning thread guide groove and rotates in an axis parallel to the axis of the thread guide roller 1.

Infolge der Drehbewegung der Schlitztrommel 4 wird der in der Fadenführungsnut liegende Faden b in bekannter Weise in Richtung der Trommelachse, d.h. quer zu seiner Bewegungsrichtung und zur Bewegungsrichtung des Fadens a, hin und her bewegt. Schlitztrommel 4 und Fadenführungsrolle 1 sind dabei achsenparallel und relativ zueinander so angeordnet, daß die Mittelebene der Fadenführungsrolle 1 etwa in der Mitte der Changierbereichs der Schlitztrommel 4 liegt. Daher wird der Faden b abwechselnd auf der einen und auf der anderen Seite des Fadens a auf die Galette 2 geführt, wie in Figur 2 veranschaulicht. In der gegenseitigen Lage, die die Fäden a und b auf der Galette 2 einnehmen, werden sie in die Kräuselvorrichtung 3 eingezogen. Dort werden sie gemeinsam gekräuselt. Der so erzeugte Faden zeigt ein Farbwechselspiel das sich durch Änderung der Changiergeschwindigkeit, d.h. durch Änderung der Drehzahl der Schlitztrommel4, in voraussehbarer und reproduzierbarer Weise beinflüssen läßt. Die Changiergeschwindigkeit ist dabei durch die Durch aufgeschwindigkeit des Fadens und den Abstand zwischen Schlitztrommel 4 und Galette 2 nach oben begrenzt. Die Dauer eines Einzelhubs der Changierung soll mindestens so lang sein wie die Zeit, die eine bestimmte Stelle des Fadens benötigt, um von der Schlitztrommel 4 zur Galette 2 oder, allgemein ausgedrückt, zu einer Stelle zu gelangen, hinter der sich die relative Lage der Einzelfäden bis zum Einlaufen in die Kräuselvorrichtung nicht mehr ändern kann. Die maximale Changiergeschwindigkeit ist bei gegebener Fadengeschwindigkeit umso größer, je kürzer der Abstand zwischen Schlitztrommel 4 und Galette 2 gehalten wird. Diese Zusammenhänge gelten natürlich sinngemäß auch für die anderen Ausführungsbeispiele der Erfindung.As a result of the rotary movement of the slit drum 4, the thread b lying in the thread guide groove is moved in a known manner in the direction of the drum axis, i.e. transversely to its direction of movement and the direction of movement of the thread a, back and forth. The slot drum 4 and the thread guide roller 1 are arranged parallel to the axis and relative to one another such that the central plane of the thread guide roller 1 lies approximately in the middle of the traversing area of the slot drum 4. Therefore, the thread b is guided alternately on one side and on the other side of the thread a onto the godet 2, as illustrated in FIG. 2. In the mutual position that the threads a and b occupy on the godet 2, they are drawn into the crimping device 3. There they are crimped together. The thread produced in this way shows a color change which is caused by changing the traversing speed, i.e. by changing the speed of the slit drum 4, in a predictable and reproducible manner. The traversing speed is limited by the speed of the thread and the distance between slotted drum 4 and godet 2 upwards. The duration of a single stroke of the traversing should be at least as long as the time it takes for a certain point on the thread to get from the slit drum 4 to the godet 2 or, generally speaking, to a point behind which the relative position of the individual threads is can not change until it enters the crimping device. The maximum traversing speed is greater for a given thread speed, the shorter the distance between slot drum 4 and godet 2 is kept. These relationships naturally also apply mutatis mutandis to the other exemplary embodiments of the invention.

Bei der in den Figuren 3 und 4 dargestellten Strecktexturiermaschine werden drei Fäden a, b, c von Vorlagespulen 5,6,7 abgezogen. Der Faden c gelangt über eine Öse und eine ortsfeste Fadenführungsrolle 8 zu der Galette 9. Die Fäden a und b werden über eine Schlitztrommel 10 geleitet, und zwar der Faden a auf der einen und der Faden b auf der gegenüberliegen Seite der Trommelachse (in Figur 3 rechts bzw. links). Dadurch werden die Fäden a und b gegenläufig, d.h. mit einer Phasenverschiebung von 180 Grad, changiert. Der Changierbereich ist symmetrisch zu der vom Faden c durchlaufenen Ebene. Auf der Galette 9, zu der die Fäden a und b ebenso wie der Faden c gelangen, laufen die Fäden a und b daher abwechselnd auf der einen und auf der anderen Seite des Fadens c, der jeweils in der Mitte liegt, wie in Figur 4 angedeutet. Von der Galette 9 gelangen die Fäden zu dem Streckwerk 11, wobei ihre gegenseitige Lage unverändert bleibt. In der gleichen relativen Anordnung werden die Fäden in die Kräuselvorrichtung 12 eingezogen. Aus der Kräuselvorrichtung 12 tritt ein Mischfaden aus, dessen Farbstruktur durch die Drehzahl der Schlitztrommel 10 bestimmt ist. Der Faden wird zwecks Kühlung auf einer Siebtrommel 13 abgelegt und von dort in üblicher Weise zu einer Aufspuleinheit 14 geführt.In the stretch texturing machine shown in FIGS. 3 and 4, three threads a, b, c are drawn off from supply spools 5, 6, 7. The thread c passes through an eyelet and a stationary thread guide roller 8 to the godet 9. The threads a and b are passed over a slotted drum 10, namely the thread a on one side and the thread b on the opposite side of the drum axis (in FIG 3 right or left). This causes threads a and b to run in opposite directions, i.e. with a phase shift of 180 degrees, changes. The traversing area is symmetrical to the plane traversed by thread c. On the godet 9, to which the threads a and b as well as the thread c arrive, the threads a and b therefore run alternately on one and on the other side of the thread c, which is in the middle, as in FIG. 4 indicated. The threads reach the drafting device 11 from the godet 9, their mutual position remaining unchanged. In the same relative arrangement, the threads are drawn into the crimping device 12. A mixed thread emerges from the crimping device 12, the color structure of which is determined by the speed of the slit drum 10. For the purpose of cooling, the thread is deposited on a sieve drum 13 and from there in the usual way to a winding unit 14.

Die in Figur 3a teilweise dargestellte Maschine unterscheidet sich von der Maschine gemäß Figur 3 dadurch, daß anstelle der Schlitztrommein 10 hierbei zwei übereinander angeordnete Schlitztrommeln 10a und 10b vorgesehen sind, deren Achsen in horizontaler Richtung geringfügig zueinander versetzt sind. Jeder der Fäden a, b wird daher an einer eigenen Schlitztrommel geführt, ohne die andere zu berühren. Die Schlitztrommeln 10a und 10b sind mit unterschiedlichen Drehzahlen antreibbar.The machine partially shown in FIG. 3a differs from the machine according to FIG. 3 in that instead of the slot drums 10 there are two slot drums 10a and 10b arranged one above the other, the axes of which are slightly offset from one another in the horizontal direction. Each of the threads a, b is therefore guided on its own slit drum without touching the other. The slot drums 10a and 10b can be driven at different speeds.

Bei dem gemäß Figur 3 hergestellten Garn haben die Verflechtungspunkte des Fadens a mit dem Faden c die gleichen Abstände wie die Verflechtungspunkte des Fadens b mit dem Faden c. Dagegen können gemäß Figur 3a die Abstände der Verflechtungspunkte für den Faden a nach Belieben größer oder kleiner sein als diejenigen des Fadens b. Dementsprechend bietet die Vorrichtung gemäß Figur 3a noch mehr Möglichkeiten zur willkürlichen Veränderungen des Farbenspiels.In the yarn produced according to FIG. 3, the points of interweaving of thread a with thread c have the same distances as the points of interweaving of thread b with thread c. In contrast, according to FIG. 3a, the spacing of the interweaving points for thread a can be greater or smaller than that of thread b as desired. Accordingly, the device according to FIG. 3a offers even more possibilities for arbitrarily changing the play of colors.

Figur 5 zeigt eine Spinnstrecktexturiermaschine, bei der drei verschiedenfarbige oder verschieden anfärbbare Fäden a, b, c durch eine Abzugsgalette 15 -mit Beilaufrolle 16 aus den Düsen 17, 18, 19 des Spinnbalkens 20 abgezogen werden. Zwischen Abzugsgalette 15 und Streckwerk 21 werden die Fäden a und b z.B. durch nicht dargestellte stationäre Fadenführer geleitet, so daß sie ihre Lage konstant beibehalten. Zur Führung des Fadens c ist ein Changierfadenführer 22 vorgesehen, dessen Changierbereich symmetrisch zur Mittellinie zwischen den beiden Fäden a und b liegt und etwa doppelt so groß ist wie der Abstand der Fäden a und b. Demzufolge läuft der Faden b abwechselnd auf der einen Seite, in dem Zwischenraum und auf der anderen Seite der Fäden a und b in das Streckwerk 21, wie in Figur 6 veranschaulicht. Nach gemeinsamer Kräuselung in der Kräuselvorrichtung 23, die hierbei vorzugsweise als pneumatische Kräuselkammer ausgebildet ist, wird das gekräuselte Mischgarn auf der Siebtrommel 24 gekühlt und anschließend in der Verflechtungsdüse 25 zwecks Verbesserung des Fadenzusamenhaltes verflochten. Derartige Verflechtungsdüsen gehören zum Stand der Technik; eine geeignete Verflechtungsdüse ist beispielsweise in der GB-PS 924 089 beschrieben. Kernstück des Changierfadenführers 22 ist bei dem Ausführungsbeispiel gemäß Figur 5 und 6 eine Kolben-Zylinder-Einheit, wobei eine Fadenführungsöse 27 mit dem Kolben verbunden ist. Die Kolben-Zylinder-Einheit wird durch ein nicht dargestelltes Zeitschaltwerk betätigt. Dabei können je nach dem gewünschten Effekt die Zeitabstände zwischen den einzelnen Bewegungen konstant sein, periodisch geändert werden oder statistisch um einen Mittelwert schwanken.FIG. 5 shows a spin draw texturing system Machine in which three differently colored or differently dyeable threads a, b, c are drawn off from the nozzles 17, 18, 19 of the spinning beam 20 by means of a take-off godet 15 with a feed roller 16. Between the withdrawal godet 15 and drafting device 21, the threads a and b are guided, for example, by stationary thread guides, not shown, so that they maintain their position constantly. A traversing thread guide 22 is provided for guiding the thread c, the traversing region of which lies symmetrically to the center line between the two threads a and b and is approximately twice as large as the distance between the threads a and b. Accordingly, the thread b runs alternately on one side, in the intermediate space and on the other side of the threads a and b in the drafting device 21, as illustrated in FIG. 6. After crimping together in the crimping device 23, which is preferably designed as a pneumatic crimping chamber, the crimped mixed yarn is cooled on the sieve drum 24 and then intertwined in the interlacing nozzle 25 in order to improve the thread retention. Such interlacing nozzles belong to the prior art; a suitable interlacing nozzle is described for example in GB-PS 924 089. The centerpiece of the traversing thread guide 22 in the exemplary embodiment according to FIGS. 5 and 6 is a piston-cylinder unit, a thread guide eyelet 27 being connected to the piston. The piston-cylinder unit is actuated by a time switch, not shown. Depending on the desired effect, the time intervals between the individual movements can be constant, changed periodically or fluctuate statistically around an average.

Claims (12)

1. A method for the continuous manufacture of a non-twisted crimped yarn from at least two bundles of filaments having different colours or dying properties, characterised in that at least one filament bundle is alternately displaced from one side of the second filament bundle to the other and in that the filament bundles are supplied together in the alternating relative arrangement produced in this manner to a crimping device.
2. A method according to claim 1, characterised in that, after crimping, the yarn is intermixed by jets of air.
3. A method according to claim 1 or 2, characterised in that the displacement of the filament bundle(s) occurs during a spin-stretch-texturing process prior to the stretching.
4. An arrangement for carrying out the method according to one of claims 1 to 3 with a crimping device, characterised in that a shifting thread guide (4, 10, 10a, 10b, 26) for at least one filament bundle is arranged upstream of the crimping device (3, 12, 23) and crosses the path of a second filament bundle.
5. An arrangement according to claim 4, characterised in that a slotted drum (4, 10, 10a, 10b) is provided as a shifting thread guide.
6. An arrangement according to claim 4, characterised in that the shifting thread guide comprises a piston cylinder unit (26).
7. An arrangement according to one of claims 4 to 6, characterised by at least two shifting thread guides (10a, 10b), which can be driven at different shift speeds.
8. An arrangement according to one of claims 4 to 6, characterised by at least two shifting thread guides (10a, 10b), which can be driven at the same shift speed and with variable phase displacement.
9. An arrangement according to claim 5, characterised in that two filament bundles are guided on opposite sides of the slotted drum (10).
10. An arrangement according to one of claims 4 to 9, characterised in that a stationary thread guide (1) is provided for at least one filament bundle.
11. An arrangement according to one of claims 4 to 10, characterised in that in the case of a spin-stretch-texturing machine, the shifting thread guide (22) is arranged upstream of the stretching device (21).
12. An arrangement according to one of claims 4 to 11, characterised in that an intermixing nozzle (25) is arranged in the thread path downstream of the crimping device (23).
EP84104348A 1983-08-06 1984-04-17 Method and apparatus for making a non twisted crimped yarn from at least two bundles of filaments having different colours or dyeing properties Expired - Lifetime EP0133198B1 (en)

Applications Claiming Priority (2)

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DE3328477A DE3328477A1 (en) 1983-08-06 1983-08-06 METHOD AND ARRANGEMENT FOR THE PRODUCTION OF AN UNWREADED PULLED COTTON YARN FROM AT LEAST TWO BUNCHES OF DIFFERENT COLORS OR COLORABILITY
DE3328477 1983-08-06

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EP0133198A2 EP0133198A2 (en) 1985-02-20
EP0133198A3 EP0133198A3 (en) 1988-09-07
EP0133198B1 true EP0133198B1 (en) 1990-10-10

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US6076345A (en) * 1997-02-26 2000-06-20 Maschinenfabrik Rieter Ag Method and apparatus for generating a yarn composed of at least two yarn components
US6085395A (en) * 1996-01-12 2000-07-11 Maschinenfabrik Rieter Ag Method and apparatus for producing a multicolored yarn from differently colored part-threads of endless filament
US7086130B2 (en) 2003-01-24 2006-08-08 Saurer Gmbh & Co. Kg Apparatus and method for texturing a plurality of blended synthetic multifilament yarns
DE102021006003A1 (en) 2021-12-04 2023-06-07 Oerlikon Textile Gmbh & Co. Kg Device for producing a mixed thread

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JP2895521B2 (en) * 1989-09-25 1999-05-24 鐘紡株式会社 Core-sheath composite yarn and method for producing the same
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DE9101211U1 (en) * 1991-02-02 1991-04-25 Neumag - Neumuenstersche Maschinen- Und Anlagenbau Gmbh, 2350 Neumuenster, De
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US6085395A (en) * 1996-01-12 2000-07-11 Maschinenfabrik Rieter Ag Method and apparatus for producing a multicolored yarn from differently colored part-threads of endless filament
US6094790A (en) * 1996-01-12 2000-08-01 Maschinenfabrik Rieter Ag Method and apparatus for producing a multicolored yarn from differently colored part-threads of endless filament
US6119320A (en) * 1996-01-12 2000-09-19 Maschinenfabrik Rieter Ag Method and apparatus for producing a multicolored yarn from differently colored part-threads of endless filament
US6076345A (en) * 1997-02-26 2000-06-20 Maschinenfabrik Rieter Ag Method and apparatus for generating a yarn composed of at least two yarn components
US7086130B2 (en) 2003-01-24 2006-08-08 Saurer Gmbh & Co. Kg Apparatus and method for texturing a plurality of blended synthetic multifilament yarns
DE102021006003A1 (en) 2021-12-04 2023-06-07 Oerlikon Textile Gmbh & Co. Kg Device for producing a mixed thread

Also Published As

Publication number Publication date
DE3483380D1 (en) 1990-11-15
EP0133198A3 (en) 1988-09-07
DE3328477A1 (en) 1985-02-21
JPS6052639A (en) 1985-03-25
EP0133198A2 (en) 1985-02-20
DE3328477C2 (en) 1991-07-04

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