EP0570305A1 - Process for producing a soft winding by continuous texturing of false-twisted reset polyamide yarn and machine for carrying out this process - Google Patents

Process for producing a soft winding by continuous texturing of false-twisted reset polyamide yarn and machine for carrying out this process Download PDF

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Publication number
EP0570305A1
EP0570305A1 EP93420175A EP93420175A EP0570305A1 EP 0570305 A1 EP0570305 A1 EP 0570305A1 EP 93420175 A EP93420175 A EP 93420175A EP 93420175 A EP93420175 A EP 93420175A EP 0570305 A1 EP0570305 A1 EP 0570305A1
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EP
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Prior art keywords
deliverer
oven
texturing
textured
yarn
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EP93420175A
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German (de)
French (fr)
Inventor
Carlos Matas Gabalda
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ICBT Roanne SA
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ICBT Roanne SA
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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
    • D02G1/20—Combinations of two or more of the above-mentioned operations or devices; After-treatments for fixing crimp or curl
    • 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
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
    • D02G1/0266—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting false-twisting machines

Definitions

  • the invention relates to a method for the preparation, in a single operation, of a soft spool of reattached false-twisted polyamide textured yarn; it also relates to an improved false-twist texturing machine for the implementation of this process.
  • the textured thread is unwound on skeins which are dyed in a known manner.
  • This technique gives excellent results, but since it calls for a succession of discontinuous winding and rewinding operations, the yield is low. This results in a high production cost.
  • the invention overcomes these drawbacks. It aims at a process which makes it possible, at speeds clearly above 150 meters / minute and possibly up to 1000 meters / minute, to continuously carry out the texturing, then the rewinding of polyamide yarn in the form of windings sufficiently soft to be easily dyed, while preserving the maximum elasticity of these textured yarns.
  • the invention also relates to a machine for implementing this method.
  • a fixed fixture around which the wire passes is disposed at the outlet of the second oven, which makes it possible to create an accumulation of wire just upstream of said fixture.
  • this machine essentially comprises, in order, a feed block on which is placed the reel (1) of polyamide 6.6 multifilament yarn (2) to be textured.
  • This wire first passes through a first inlet deliverer (3) constituted in a known manner by a train of rollers driven under pressure.
  • a texturing oven (5) for example from 2 to 2.50 meters in length, so as to bring this wire (2) to a temperature between 200 and 230 ° C.
  • the wire being textured (6) passes over a cooling plate (7), and from there enters the friction texturing spindle (8), to arrive at a second feeder d 'call (9) identical to (3), but driven in synchronism with it.
  • the textured yarn (10) then enters another deliverer (11) similar to (9), driven in synchronism with it, but whose peripheral speed is slightly lower than that of (9 ), for example from one to six percent (1 to 6%).
  • the textured thread (10) slightly relaxed, therefore slightly open is subjected to interlacing by means of 'a conventional nozzle (12), supplied with compressed air under pressure, for example from one to three bars, so as to obtain a usual interlacing for this type of operation of between 20 and 100 knots per meter.
  • the slightly relaxed and interlaced textured yarn (13) then enters continuously into a straight fixing oven (14), also heated to a temperature between 200 and 230 ° C, the length of which is around 1, 2 to 1.5 meters.
  • the reattached textured yarn (15) then passes at a right angle over a return (16) forming an embarrassment, constituted by a stainless steel bar, then enters the third deliverer (17) similar to (9) and (11), in synchronism with them.
  • the fixed textured yarn (15) is finally rewound at (17) on a spool (18), forming a soft winding of low density.
  • the alimentary thread (2) is a polyamide 6.6 thread whose titer is between 100 and 150 dtex, stretchable by 1.3 times and the speed ratio between the first deliverer (3) and the second deliverer (9), is set to 1.3, so as to ensure the complementary drawing of this wire in the oven (5).
  • this intermediate interlacing relaxation (10-12) it is possible, at usual speeds of between 400 and 800 meters / minute or even more, to relax in the second oven (14) the wire textured (13) from forty to sixty percent (40 to 60%), whereas until now, it has not been possible to effectively relax beyond ten percent (10%). It has been observed that if the relaxation between the second deliverer and the intermediate deliverer (11) is less than one percent (1%), it is not possible to work in the second oven (14) with relaxation rates greater than ten percent (10%). Likewise, if this relaxation is greater than six percent (6%), a jam will occur inside the interlacing nozzle and breakage of thread.
  • the relaxation between these two deliverers (9) and (11) must be between one and six percent (1 and 6%), which then surprisingly allows, without any other modification, to reach relaxation rates in the second oven (14) of between forty and sixty percent (40 and 60%), compatible with the production of soft coils (18). Windings (18) are thus obtained, the compactness of which is between 0.10 and 0.30 in density.
  • the method and the machine according to the invention are particularly suitable for the production of reattached false-twisted textured polyamide yarns, intended for the manufacture of dyed yarns with high elasticity which can be more particularly used for the production of footwear.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

Process for the continuous production, with texturing, of a loose package of textured reset false-twist polyamide yarn, characterised: - in that between the exit of the second delivery (9) and the entrance of the second oven (14) is interposed another delivery (11), the peripheral speed of which is slightly lower than the peripheral speed of the second delivery (9); - in that, in this zone contained between the second delivery (9) and this other delivery (11), the slightly relaxed textured yarn (10) is subjected to the action of an interlacing jet (12); - and in that the speed of the third delivery (17) is thirty to sixty per cent (30 to 60%) lower than that of the second delivery (9), so that the package (18) obtained is loose and suitable for packaged dyeing. The invention also relates to a machine for carrying out this process. <IMAGE>

Description

L'invention concerne un procédé pour la préparation, en une seule opération, d'une bobine molle de fil texturé polyamide fausse torsion refixée ; elle vise également une machine de texturation fausse torsion perfectionnée pour la mise en oeuvre de ce procédé.The invention relates to a method for the preparation, in a single operation, of a soft spool of reattached false-twisted polyamide textured yarn; it also relates to an improved false-twist texturing machine for the implementation of this process.

Comme on le sait, lorsqu'on veut teindre une bobine de fil texturé par fausse torsion, notamment en polyamide, il est indispensable, pour que le bain de teinture puisse pénétrer au coeur de la bobine, que celle-ci soit molle, c'est-à-dire présente une faible densité d'enroulement. En pratique, il faut que la densité réalise un juste compromis avec la tenue de l'enroulement pour permettre les manipulations ultérieures.As we know, when we want to dye a spool of textured yarn by false twist, especially in polyamide, it is essential, so that the dye bath can penetrate the heart of the spool, that it is soft, it i.e. has a low winding density. In practice, the density must make a fair compromise with the resistance of the winding to allow subsequent manipulations.

Dans une première forme de réalisation, on dévide le fil texturé sur des écheveaux que l'on teint de manière connue. Cette technique donne d'excellents résultats, mais comme elle fait appel à une succession d'opérations discontinues de bobinages et de rembobinages, le rendement est faible. Il s'ensuit un coût de production élevé.In a first embodiment, the textured thread is unwound on skeins which are dyed in a known manner. This technique gives excellent results, but since it calls for a succession of discontinuous winding and rewinding operations, the yield is low. This results in a high production cost.

Le Demandeur commercialise depuis quelques années sous la dénomination "DT 320-51", une machine double torsion qui permet d'effectuer en continu la rétraction et le rembobinage mou d'un fil préalablement texturé. Là également, si l'on obtient des bobines suffisamment molles pour être appropriées à la teinture ultérieure, ce procédé est encore discontinu et ne permet pas d'atteindre des vitesses de rembobinage supérieures à cent cinquante (150) mètres/minute. Il s'ensuit que malgré le succès, cette technique reste encore coûteuse.The Applicant has been selling for a few years under the name "DT 320-51", a double twist machine which allows continuous retraction and soft rewinding of a previously textured yarn. Again, if coils are obtained which are sufficiently soft to be suitable for subsequent dyeing, this process is still discontinuous and does not allow rewinding speeds greater than one hundred and fifty (150) meters / minute to be achieved. It follows that despite the success, this technique is still expensive.

On a essayé de réaliser des bobines molles sur la machine fausse-torsion elle-même. En pratique, il n'est pas possible de disposer des suralimentations supérieures à dix pourcent (10 %), du moins aux vitesses actuelles de texturation (cinq cents mètres et plus), ce qui est insuffisant pour réaliser des bobines molles.We tried to make soft coils on the false-twist machine itself. In practice, it is not possible to have supercharges greater than ten percent (10%), at least at current texturing speeds (five hundred meters and more), which is insufficient to produce soft coils.

L'invention pallie ces inconvénients. Elle vise un procédé qui permette à des vitesses nettement supérieures à 150 mètres/minute et pouvant aller jusqu'à 1000 mètres/minute, de réaliser en continu la texturation, puis le rembobinage de fil de polyamide sous forme d' enroulements suffisamment mou pour être facilement teint, tout en préservant l'élasticité maximum de ces fils texturés.The invention overcomes these drawbacks. It aims at a process which makes it possible, at speeds clearly above 150 meters / minute and possibly up to 1000 meters / minute, to continuously carry out the texturing, then the rewinding of polyamide yarn in the form of windings sufficiently soft to be easily dyed, while preserving the maximum elasticity of these textured yarns.

Ce procédé perfectionné pour la préparation d'un enroulement mou de fil texturé polyamide fausse torsion refixée, qui consiste en continu :

  • . à amener un fil multifilamentaire de polyamide à un premier délivreur ;
  • . à soumettre ce fil à un traitement de texturation par fausse torsion par passage dans un premier four, puis dans une broche de texturation, disposés dans l'ordre entre le premier délivreur et un deuxième délivreur ;
  • . à soumettre ce fil texturé à un traitement de refixage par relaxation pendant le passage dans un second four disposé entre ce deuxième délivreur et un troisième délivreur;
  • . et enfin, à renvider le fil texturé refixé obtenu sous forme d'enroulement,

se caractérise :
  • en ce que entre la sortie du deuxième délivreur et l'entrée du deuxième four, on interpose un autre délivreur dont la vitesse est légèrement inférieure à la vitesse du deuxième délivreur ;
  • en ce que dans cette zone comprise entre le deuxième délivreur et cet autre délivreur, on soumet le fil texturé légèrement relaxé à l'action d'un jet d'entrelaçage ;
  • et en ce que la vitesse du troisième délivreur est de trente à soixante pourcent (30 à 60 %) inférieure à celle du deuxième délivreur, de sorte que l'enroulement obtenu est mou et apte à la teinture en bobine.
This improved process for the preparation of a soft winding of textured false twisted polyamide textured yarn, which consists continuously:
  • . feeding a polyamide multifilament yarn to a first deliverer;
  • . subjecting this yarn to a texturing treatment by false twist by passing through a first oven, then through a texturing spindle, arranged in order between the first deliverer and a second deliverer;
  • . subjecting this textured yarn to a relaxation reattachment treatment during the passage through a second oven disposed between this second deliverer and a third deliverer;
  • . and finally, to rewind the reattached textured yarn obtained in the form of a coil,

is characterized :
  • in that between the outlet of the second deliverer and the inlet of the second oven, there is interposed another deliverer whose speed is slightly lower than the speed of the second deliverer;
  • in that in this zone between the second deliverer and this other deliverer, the slightly relaxed textured yarn is subjected to the action of an interlacing jet;
  • and in that the speed of the third deliverer is thirty to sixty percent (30 to 60%) lower than that of the second deliverer, so that the winding obtained is soft and suitable for reel dyeing.

Avantageusement, en pratique:

  • le fil multifilamentaire de polyamide est un fil partiellement étiré dont on complète l'étirage entre le premier et le deuxième délivreurs;
  • le taux de relaxation entre le deuxième et l'autre délivreur est compris entre un et six pourcent (1 et 6 %); en effet, on a observé que si ce taux est inférieur à un pourcent (1 %), le fil est trop tendu pour que l'entrelaçage soit efficace; de même, si ce taux dépasse six pourcent (6 %), il se produit un bourrage à l'intérieur de la buse ou jet d'entrelaçage ;
  • l'entrelaçage est effectué de manière connue par des buses appropriées pour obtenir des fils présentant de vingt à cent noeuds au mètre ;
  • le taux de relaxation dans le deuxième four droit, est compris entre quarante et soixante pourcent (40 et 60 %), ce qui permet d'obtenir, après teinture, du fil présentant une élasticité élevée ; cette solution est d'autant plus surprenante que sans la relaxation avec entrelaçage intermédiaire, il n'est pas possible de réceptionner le fil à des taux supérieurs à dix pourcent (10 %);
  • à proximité de la sortie du deuxième four, le fil relaxé et refixé, passe sur un embarrage fixe, qui créee une accumulation de fil, juste en amont de cet embarrage.
Advantageously, in practice:
  • the polyamide multifilament yarn is a partially drawn yarn, the drawing of which is completed between the first and the second deliverers;
  • the relaxation rate between the second and the other deliverer is between one and six percent (1 and 6%); indeed, it has been observed that if this rate is less than one percent (1%), the thread is too tight for the interlacing to be effective; similarly, if this rate exceeds six percent (6%), a jam occurs inside the nozzle or interlacing jet;
  • interlacing is carried out in a known manner by suitable nozzles to obtain threads having from twenty to one hundred knots per meter;
  • the relaxation rate in the second straight oven is between forty and sixty percent (40 and 60%), which makes it possible to obtain, after dyeing, yarn having a high elasticity; this solution is all the more surprising that without relaxation with intermediate interlacing, it is not possible to receive the wire at rates greater than ten percent (10%);
  • near the outlet of the second oven, the relaxed and reattached wire passes over a fixed fixture, which creates an accumulation of thread, just upstream from this fixture.

L'invention concerne également une machine pour la mise en oeuvre de ce procédé.The invention also relates to a machine for implementing this method.

Cette machine de texturation fausse torsion qui comprend dans l'ordre :

  • . un premier délivreur,
  • . un premier four de texturation,
  • . une broche de texturation,
  • . un deuxième délivreur,
  • . un deuxième four droit de fixation,
  • . un troisième délivreur,
  • . un organe de renvidage du fil sous forme d'enroulement,

se caractérise :
  • en ce que entre le deuxième délivreur et l'entrée du deuxième four, on dispose un autre délivreur, commandé en synchronisme avec le deuxième et le troisième délivreurs ;
  • et en ce que entre le deuxième délivreur et cet autre délivreur, on interpose une buse d'entrelaçage.
This false twist texturing machine which includes in order:
  • . a first deliverer,
  • . a first texturing oven,
  • . a texturing pin,
  • . a second deliverer,
  • . a second straight fixing oven,
  • . a third deliverer,
  • . a wire winding member in the form of a winding,

is characterized :
  • in that between the second deliverer and the inlet of the second oven, there is another deliverer, controlled in synchronism with the second and the third deliverers;
  • and in that between the second deliverer and this other deliverer, an interlace nozzle is interposed.

De préférence, un embarrage fixe autour duquel passe le fil est disposé à la sortie du deuxième four, ce qui permet de créer une accumulation de fil juste en amont dudit embarrage.Preferably, a fixed fixture around which the wire passes is disposed at the outlet of the second oven, which makes it possible to create an accumulation of wire just upstream of said fixture.

La manière dont l'invention peut être réalisée et les avantages qui en découlent, ressortiront mieux de l'exemple de réalisation qui suit à l'appui de la figure unique annexée qui représente schématiquement un seul corps d'une machine à texturer fausse-torsion refixée, du type de celle commercialisée par le Demandeur sous la dénomination FTF.The manner in which the invention can be implemented and the advantages which ensue therefrom will emerge more clearly from the embodiment which follows, supported by the single appended figure which schematically represents a single body of a false-twist texturing machine. refixed, of the type marketed by the Applicant under the name FTF.

De manière connue, cette machine comprend essentiellement dans l'ordre un cantre d'alimentation sur lequel est placée la bobine (1) de fil polyamide 6.6 multifilamentaire (2) à texturer. Ce fil passe tout d'abord dans un premier délivreur d'entrée (3) constitué de manière connue d'un train de rouleaux entraînés en pression. Par un jeu de renvoi (4), le fil pénètre ensuite dans un four de texturation (5), par exemple de 2 à 2,50 mètres de longueur, de manière à amener ce fil (2) à une température comprise entre 200 et 230°C. En sortant du four (5), le fil en cours de texturation (6) passe sur une plaque de refroidissement (7), et de là, pénètre dans la broche de texturation à friction (8), pour arriver à un deuxième délivreur d'appel (9) identique à (3), mais entraînés en synchronisme avec celui-ci.In known manner, this machine essentially comprises, in order, a feed block on which is placed the reel (1) of polyamide 6.6 multifilament yarn (2) to be textured. This wire first passes through a first inlet deliverer (3) constituted in a known manner by a train of rollers driven under pressure. By a set of deflection (4), the wire then enters a texturing oven (5), for example from 2 to 2.50 meters in length, so as to bring this wire (2) to a temperature between 200 and 230 ° C. Leaving the oven (5), the wire being textured (6) passes over a cooling plate (7), and from there enters the friction texturing spindle (8), to arrive at a second feeder d 'call (9) identical to (3), but driven in synchronism with it.

Selon la caractéristique de l'invention, le fil texturé (10) pénètre alors dans un autre délivreur (11) analogue à (9), entraîné en synchronisme avec celui-ci, mais dont la vitesse périphérique est légèrement inférieure à celle de (9), par exemple de un à six pourcent (1 à 6 %). Selon une autre caractéristique de l'invention, sur le trajet entre le deuxième délivreur (9) et l'autre délivreur caractéristique (11), le fil texturé (10) légèrement relaxé, donc légèrement ouvert, est soumis à un entrelaçage au moyen d'une buse (12) classique, alimentée par de l'air comprimé sous une pression, par exemple de un à trois bars, de manière à obtenir un entrelaçage habituel pour ce type d'opération compris entre 20 et 100 noeuds au mètre.According to the characteristic of the invention, the textured yarn (10) then enters another deliverer (11) similar to (9), driven in synchronism with it, but whose peripheral speed is slightly lower than that of (9 ), for example from one to six percent (1 to 6%). According to another characteristic of the invention, on the path between the second deliverer (9) and the other characteristic deliverer (11), the textured thread (10) slightly relaxed, therefore slightly open, is subjected to interlacing by means of 'a conventional nozzle (12), supplied with compressed air under pressure, for example from one to three bars, so as to obtain a usual interlacing for this type of operation of between 20 and 100 knots per meter.

Le fil texturé légèrement relaxé et entrelacé (13), pénètre ensuite et en continu dans un four droit (14) de fixation, également chauffé à une température comprise entre 200 et 230°C, dont la longueur est de l'ordre de 1,2 à 1,5 mètre. Le fil texturé refixé (15) passe ensuite à angle droit sur un renvoi (16) formant embarrage, constitué par une barre en acier inoxydable, puis pénètre dans le troisième délivreur (17) analogue à (9) et (11), en synchronisme avec ceux-ci. Le fil texturé fixé (15) est enfin rembobiné en (17) sur une bobine (18), formant un enroulement mou de faible densité.The slightly relaxed and interlaced textured yarn (13) then enters continuously into a straight fixing oven (14), also heated to a temperature between 200 and 230 ° C, the length of which is around 1, 2 to 1.5 meters. The reattached textured yarn (15) then passes at a right angle over a return (16) forming an embarrassment, constituted by a stainless steel bar, then enters the third deliverer (17) similar to (9) and (11), in synchronism with them. The fixed textured yarn (15) is finally rewound at (17) on a spool (18), forming a soft winding of low density.

Dans une forme de réalisation pratique, le fil alimentaire (2) est un fil de polyamide 6.6 dont le titre est compris entre 100 et 150 dtex, étirable de 1,3 fois et le rapport de vitesse entre le premier délivreur (3) et le second délivreur (9), est réglé à 1,3, de manière à assurer l'étirage complémentaire de ce fil dans le four (5).In a practical embodiment, the alimentary thread (2) is a polyamide 6.6 thread whose titer is between 100 and 150 dtex, stretchable by 1.3 times and the speed ratio between the first deliverer (3) and the second deliverer (9), is set to 1.3, so as to ensure the complementary drawing of this wire in the oven (5).

Selon une autre caractéristique de l'invention, grâce à cette relaxation-entrelaçage intermédiaire (10-12), on peut, à des vitesses usuelles comprises entre 400 et 800 mètres/minute voire plus , relaxer dans le second four (14) le fil texturé (13) de quarante à soixante pourcent (40 à 60 %) , alors que jusqu'à ce jour, il n'était pas possible de relaxer efficacement au-delà de dix pourcent (10 %). On a observé que si la relaxation entre le deuxième délivreur et le délivreur intermédiaire (11) est inférieure à un pourcent (1 %), il n'est pas possible de travailler dans le second four (14) avec des taux de relaxation supérieurs à dix pourcent (10 %). De même, si cette relaxation est supérieure à six pourcent (6 %), il se produit un bourrage à l'intérieur de la buse d'entrelaçage et des casses de fil.According to another characteristic of the invention, thanks to this intermediate interlacing relaxation (10-12), it is possible, at usual speeds of between 400 and 800 meters / minute or even more, to relax in the second oven (14) the wire textured (13) from forty to sixty percent (40 to 60%), whereas until now, it has not been possible to effectively relax beyond ten percent (10%). It has been observed that if the relaxation between the second deliverer and the intermediate deliverer (11) is less than one percent (1%), it is not possible to work in the second oven (14) with relaxation rates greater than ten percent (10%). Likewise, if this relaxation is greater than six percent (6%), a jam will occur inside the interlacing nozzle and breakage of thread.

Comme déjà dit, il faut que la relaxation entre ces deux délivreurs (9) et (11) soit comprise entre un et six pourcent (1 et 6 %), ce qui permet alors de manière surprenante, et sans autre modification, d'atteindre des taux de relaxation dans le deuxième four (14) compris entre quarante et soixante pourcent (40 et 60 %), compatibles avec la réalisation d'enroulements mous (18). On obtient ainsi des enroulements (18) dont la compacité est comprise entre 0,10 et 0,30 de densité.As already said, the relaxation between these two deliverers (9) and (11) must be between one and six percent (1 and 6%), which then surprisingly allows, without any other modification, to reach relaxation rates in the second oven (14) of between forty and sixty percent (40 and 60%), compatible with the production of soft coils (18). Windings (18) are thus obtained, the compactness of which is between 0.10 and 0.30 in density.

Comme déjà dit, il importe que le fil refixé (15) sortant du second four (14), passe à angle droit sur un embarrage fixe (16), de manière à créer juste en amont de cet embarrage (16) une accumulation de fil.As already said, it is important that the reattached wire (15) leaving the second oven (14), passes at right angles to a fixed fixture (16), so as to create just upstream of this fixture (16) an accumulation of thread .

Le procédé et la machine selon l'invention sont particulièrement adaptés à la réalisation de fils de polyamide texturés fausse-torsion refixée, destinés à la fabrication de fils teints à haute élasticité pouvant être plus particulièrement utilisés pour la réalisation d'articles chaussants.The method and the machine according to the invention are particularly suitable for the production of reattached false-twisted textured polyamide yarns, intended for the manufacture of dyed yarns with high elasticity which can be more particularly used for the production of footwear.

Claims (6)

1/ Procédé pour réaliser en continu à la texturation un enroulement mou de fil texturé polyamide fausse-torsion refixée, qui consiste en continu : . à amener un fil multifilamentaire (2) de polyamide à un premier délivreur (3), . à soumettre ce fil (2) à un traitement de texturation par fausse-torsion par passage dans un premier four (5), puis dans une broche de texturation (8), disposés dans l'ordre entre le premier délivreur (3) et un deuxième délivreur (9), . puis, à soumettre ce fil texturé (10) à un traitement de refixage par relaxation pendant le passage dans un second four (14) disposé entre ce deuxième délivreur (9) et un troisième délivreur (17), . enfin, à renvider le fil texturé refixé (16) obtenu sous forme d'enroulement, caractérisé: - en ce que entre la sortie du deuxième délivreur (9) et l'entrée du deuxième four (14), on interpose un autre délivreur (11) dont la vitesse périphérique est légèrement inférieure à la vitesse périphérique du deuxième délivreur (9); - en ce que dans cette zone comprise entre le deuxième délivreur (9) et cet autre délivreur (11), on soumet le fil texturé (10) légèrement relaxé à l'action d'un jet d'entrelaçage (12); - et en ce que la vitesse du troisième délivreur (17) est de trente à soixante pourcent (30 à 60 %) inférieure à celle du deuxième délivreur (9), de sorte que l'enroulement (18) obtenu est mou et apte à la teinture en bobine. 1 / Method for continuously producing a soft winding of reattached false-twisted polyamide textured yarn during texturing, which consists continuously: . bringing a multifilament yarn (2) of polyamide to a first deliverer (3), . subjecting this thread (2) to a texturing treatment by false-twist by passing through a first oven (5), then through a texturing spindle (8), arranged in order between the first deliverer (3) and a second deliverer (9), . then, subjecting this textured yarn (10) to a relaxation reattachment treatment during the passage through a second oven (14) disposed between this second deliverer (9) and a third deliverer (17), . finally, rewinding the reattached textured yarn (16) obtained in the form of a winding, characterized : - in that between the outlet of the second deliverer (9) and the inlet of the second oven (14), another interposeer (11) is interposed whose peripheral speed is slightly lower than the peripheral speed of the second deliverer (9); - In that in this zone between the second deliverer (9) and this other deliverer (11), the textured thread (10) slightly relaxed is subjected to the action of an interlacing jet (12); - And in that the speed of the third deliverer (17) is thirty to sixty percent (30 to 60%) lower than that of the second deliverer (9), so that the winding (18) obtained is soft and able to reel dyeing. 2/ Procédé selon la revendication 1, caractérisé en ce que le fil multifilamentaire (2) est un fil de polyamide partiellement étiré, dont on complète l'étirage dans le premier four (5) disposé entre le premier (3) et le deuxième (9) délivreurs. 2 / A method according to claim 1, characterized in that the multifilament yarn (2) is a partially drawn polyamide yarn, the drawing of which is completed in the first oven (5) disposed between the first (3) and the second ( 9) issuers. 3/ Procédé selon l'une des revendications 1 et 2, caractérisé en ce que le taux de relaxation entre le deuxième délivreur (9) et le délivreur intermédiaire (11), est compris entre un et six pourcent (1 et 6 %). 3 / Method according to one of claims 1 and 2, characterized in that the relaxation rate between the second deliverer (9) and the intermediate deliverer (11) is between one and six percent (1 and 6%). 4/ Procédé selon l'une des revendications 1 à 3, caractérisé en ce que à la sortie du four (14) de refixation, le fil texturé refixé (15) obtenu passe sur un embarrage fixe (16) pour favoriser l'accumulation du fil (15) dans le four (14). 4 / Method according to one of claims 1 to 3, characterized in that at the outlet of the re-fixing oven (14), the re-fixed textured wire (15) obtained passes over a fixed fixture (16) to promote the accumulation of wire (15) in the oven (14). 5/ Machine de texturation pour la mise en oeuvre du procédé selon l'une des revendications 1 à 4, qui comprend dans l'ordre : . un premier délivreur (3), . un premier four de texturation (5), . une broche de texturation (8), . un deuxième délivreur (9), . un deuxième four droit de fixation (14), . un troisième délivreur (17), . un organe de renvidage (17) du fil (15) sous forme d'enroulement (18), caractérisée: - en ce que entre le deuxième délivreur (9) et l'entrée du deuxième four (14), on dispose un délivreur intermédiaire (11), commandé en synchronisme avec le deuxième (9) et le troisième (17) délivreurs; - et en ce que entre le deuxième délivreur (9) et cet autre délivreur intermédiaire (11), on interpose une buse d'entrelaçage (12). 5 / Texturing machine for implementing the method according to one of claims 1 to 4, which comprises in order: . a first deliverer (3), . a first texturing oven (5), . a texturing pin (8), . a second deliverer (9), . a second straight fixing oven (14), . a third deliverer (17), . a winding member (17) of the wire (15) in the form of a winding (18), characterized : - in that between the second deliverer (9) and the inlet of the second oven (14), there is an intermediate deliverer (11), controlled in synchronism with the second (9) and the third (17) deliverers; - And in that between the second deliverer (9) and this other intermediate deliverer (11), there is interposed an interlacing nozzle (12). 6/ Machine selon la revendication 5, caractérisée en ce que de suite après la sortie du second four (14), le fil (15) passe sur un embarrage fixe (16). 6 / Machine according to claim 5, characterized in that immediately after the exit of the second oven (14), the wire (15) passes over a fixed fixture (16).
EP93420175A 1992-05-12 1993-04-27 Process for producing a soft winding by continuous texturing of false-twisted reset polyamide yarn and machine for carrying out this process Withdrawn EP0570305A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9206236 1992-05-12
FR9206236A FR2691173B1 (en) 1992-05-12 1992-05-12 PROCESS FOR CONDUCTING CONTINUOUSLY TEXTURING A SOFT WINDING OF FIXED TORSION POLYAMIDE TEXTURED YARN, IN A MACHINE FOR CARRYING OUT THIS PROCESS.

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EP0570305A1 true EP0570305A1 (en) 1993-11-18

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CN102839479B (en) * 2012-09-21 2015-03-11 烟台华润锦纶有限公司 Production technology of nylon 6 fine denier network stretch yarn suitable for hydraulic loom
CN103255528A (en) * 2013-05-25 2013-08-21 南通市泓丰捻线有限公司 High stretch yarn once forming processing device
CN104342803B (en) * 2013-07-31 2017-11-14 金泰线业(上海)有限公司 High-elastic softness is bulk sewing thread and its production method
CN111334955B (en) * 2020-04-17 2021-07-13 绍兴水乡纺织科技有限公司 Environment-friendly efficient chemical fiber fabric printing and dyeing equipment and process

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US4016715A (en) * 1975-10-14 1977-04-12 Burlington Industries, Inc. High stretch yarn texturing, dyeing and package production
FR2378881A1 (en) * 1977-01-27 1978-08-25 Asa Sa Texturing appts. for textile filaments - uses heating, false-twisting and fluid jet devices
JPH01207425A (en) * 1988-02-10 1989-08-21 Unitika Ltd Production of polyester based highly stretchable previously dyed yarn

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Publication number Priority date Publication date Assignee Title
US4016715A (en) * 1975-10-14 1977-04-12 Burlington Industries, Inc. High stretch yarn texturing, dyeing and package production
FR2378881A1 (en) * 1977-01-27 1978-08-25 Asa Sa Texturing appts. for textile filaments - uses heating, false-twisting and fluid jet devices
JPH01207425A (en) * 1988-02-10 1989-08-21 Unitika Ltd Production of polyester based highly stretchable previously dyed yarn

Non-Patent Citations (1)

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Title
PATENT ABSTRACTS OF JAPAN vol. 013, no. 515 (C-655)17 Novembre 1989 & JP-A-01 207 425 ( UNITIKA LTD. ) *

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JPH06192925A (en) 1994-07-12
CN1080966A (en) 1994-01-19
FR2691173A1 (en) 1993-11-19
FR2691173B1 (en) 1995-09-01

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