EP1101848B1 - Procédé de texturation par fausse torsion pour la production d'un fil frisé - Google Patents

Procédé de texturation par fausse torsion pour la production d'un fil frisé Download PDF

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Publication number
EP1101848B1
EP1101848B1 EP00107124A EP00107124A EP1101848B1 EP 1101848 B1 EP1101848 B1 EP 1101848B1 EP 00107124 A EP00107124 A EP 00107124A EP 00107124 A EP00107124 A EP 00107124A EP 1101848 B1 EP1101848 B1 EP 1101848B1
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EP
European Patent Office
Prior art keywords
yarn
false twist
speed
thread
zone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00107124A
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German (de)
English (en)
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EP1101848A1 (fr
Inventor
Wolfgang Nölle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Saurer GmbH and Co KG
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Filing date
Publication date
Application filed by Saurer GmbH and Co KG filed Critical Saurer GmbH and Co KG
Publication of EP1101848A1 publication Critical patent/EP1101848A1/fr
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Anticipated expiration legal-status Critical
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Classifications

    • 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
    • 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
    • D02G1/024—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 with provision for imparting irregular effects to the yarn
    • 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 false twist texturing synthetic thread to a crimp yarn as well as the crimp yarn.
  • Another object of the invention is to provide a crimp yarn which is in Fullness, in the handle and in appearance the character of natural fibers as possible comes close.
  • the object is achieved according to the invention by a method with the features Claim 1 and a crimped yarn with the features of claim 9 solved.
  • the method according to the invention deliberately creates a twist in the thread.
  • the swirl is thus above the saturation limit. It follows that after passing through the false twister, the thread still has a residual amount of twist.
  • the thread is first fed into a false twist zone at a feed speed w 1 .
  • a false twist is generated in the thread by a false twist which is at a speed ratio between a false twist speed D and a thread speed Y with D / Y above a saturation limit of 2.2.
  • the thread is heated in a heating device to a temperature of above 200 ° C., preferably in the range from 230 ° C. to 270 ° C., and then cooled again in a cooling device connected downstream.
  • the thread is drawn out of the false twist zone by a second delivery unit with a take-off speed w 2 .
  • the take-off speed is set to a maximum of 1.4 times the feed speed w 1 , the take-off speed w 2 being below 1,000 m / min, so that the thread is twisted. Then the thread is wound into a bobbin.
  • the curling yarn produced in this way is characterized by a high thread closure with irregular structure from what the characteristics and appearance comes very close to natural fibers.
  • the filaments that make up the crimped yarn have deformations in the form of loops, loops and arches that are otherwise only known for yarns produced by air texturing were.
  • the synthetic filaments are so uneven with each other entwined that there are alternately large and small thread cross-sections are.
  • the loops and arches of neighboring are different Thread cross-sections in opposite twist to each other, the crimp yarn overall has no tendency to swirl.
  • the different thread sections with opposite sense of swirl are in frequency and length from Depending on the degree of swirl.
  • the false twist on the thread is caused by a false twister generated with several friction discs.
  • the false twister speed D is determined by the peripheral speed of the friction discs.
  • the peripheral speed of the friction discs is preferably in the Range between 2.5 times and 3.2 times the thread speed Y, which is therefore clearly above saturation and leads to a swirl of the Fadens leads in the false twist zone.
  • the method variant of the method according to the invention has proven particularly useful.
  • the thread is only stretched a little in the false twist zone.
  • the take-off speed w 2 is in the range above 1.05 times the feed speed w 1 .
  • the thread is passed through a swirling nozzle before being fed into the false twist zone.
  • the intermingling nozzle can be used for conveying and intermingling the filaments or only for intermingling the filaments.
  • the thread is fed to the swirling nozzle at a delivery speed w 1.1 which is greater than the feed speed w 1 . In this way, the thread is traditionally guided to the intermingling nozzle, which enables the filaments to be intertwined.
  • a The supply bobbin is first partially drawn in a drawing zone in order to then for swirling or directly into the false twist zone for stretch texturing to be led.
  • This process variant is especially for POY master yarns suitable to safely guide the thread in the false twist zone to be able to.
  • the process according to the invention enables the production of a crimped yarn possible, which has properties that otherwise only from air-textured Yarns are known ago.
  • To enhance the natural character of the curling gams according to the invention are the changes in the thread cross-section irregularly formed in order and size, whereby individual Thread cross sections over a thread length in the range of 0.5 mm to 10 mm can extend.
  • the device has been used to produce the crimped yarn according to the invention with the features according to claim 14 particularly proven.
  • the Device a first delivery plant, a heating device, a cooling device, a false twister, a second delivery unit and a winding device on.
  • a swirling nozzle is in front of the first delivery unit Upstream and / or for swirling the thread. With that the characteristic loop formation of the false twist textured crimp yarn particularly intensified.
  • the interlacing nozzle has a supply unit connected to it, which can be driven with a delivery speed w 1.1 that is greater than the supply speed w 1 of the first supply unit.
  • Fig. 1 is an embodiment of an apparatus for performing the The method according to the invention is shown schematically.
  • the device has one first delivery unit 2, a heating device 5, a cooling device 6, one False twister 7, a second delivery unit 3, a second heating device 8 third delivery unit 14, a preparation device 11 1 and one Winding device 10 on.
  • a supply spool 1 with a smooth synthetic thread for example a polyester thread.
  • the thread 4 is a head thread 15 through the first delivery 2 of the Supply spool 1 removed and conveyed into a false twist zone.
  • the False twist zone is the zone in which the thread has a false twist having. In the exemplary embodiment, the false twist zone extends between the false twister 7 and the first delivery unit 2.
  • the thread 4 is first passed through a heating device 5.
  • the heater 5 is designed so that the thread to a temperature above 200 ° C, preferably in the range of 230 to 270 ° C, is heated.
  • the Heating device have a heat transfer fluid, one of the thread Contacted heating surface is heated.
  • the Heating device is heated electrically at a temperature above the Melting temperature of the thread material.
  • the thread is with Distance to the heating surface.
  • the relatively high fixing temperature is a essential parameters of the method according to the invention in order to False twist zone swirled over the entire thread cross-section to fix as evenly as possible.
  • the heating device 5 is followed by a cooling device 4, by means of which the thread 4 is cooled to a temperature of approximately 80 to 100 ° C.
  • the cooled thread passes through the false twist sensor 7, which causes the thread 4 to be twisted beyond the twist saturation.
  • the false twister 7 is operated at a false twister speed which is preferably 2.4 times to 3.2 times the thread speed.
  • the thread speed is determined by the second delivery mechanism 3, which pulls the thread 4 out of the false twist zone.
  • the second delivery mechanism 3 is driven at a take-off speed w2 which is greater than the feed speed w 1 of the first feed mechanism 2.
  • the absolute take-off speed w2 is below 1,000 m / min, so that the thread in the false twist zone is kept in the twist state.
  • the thread 4 is from second delivery unit 3 led directly to a winding device 10 and wound into a coil.
  • the thread 4 is aftertreated intended.
  • the second delivery unit 3 has a second heating device 8 downstream.
  • the thread receives one Post-heat treatment for tension compensation or shrinking treatment.
  • the thread 4 is from the heating device 8 by the third delivery mechanism 14 deducted and after preparation in a preparation device 11 to a Coil 12 wound in the winder 10.
  • the coil 12 by a drive roller 13 with a uniform peripheral speed driven.
  • the bobbin 12 contains the crimped yarn according to the invention, the records especially through the irregular rough surface structure and thus shows a particularly natural characteristic.
  • the crimped yarn is formed by a plurality of filaments 16.
  • the synthetic filaments are unevenly intertwined in relation to the thread length, so that there are alternately large and small thread cross sections with loops and arches.
  • the thread cross sections are marked in Fig. 2 with the designation d 1 , d 2 and d 3 .
  • the associated thread lengths are entered with l 1 , l 2 and l 3 in FIG. 2.
  • the loops and arches of the filaments in section l 1 form a thread cross section d 1 .
  • the loops and arches of the filaments are intertwined to form a smaller thread cross section d 2 .
  • the loops and arches of the filaments in the thread section l 2 have a twist sense that is opposite to the twist sense of the filaments in the thread piece l 1 with the larger thread cross section d 1 .
  • This change is repeated so that the thread piece l 3 adjacent to the thread piece l 2 has a large thread cross section d 3 .
  • the crimped yarn is twist-free in itself, since the twist effects of the individual thread pieces are neutralized overall.
  • the thread pieces l 1 , l 2 and l 3 can, depending on the setting of the false twister, the delivery mechanisms and the heating device, extend over a distance of a few to 10 mm and above.
  • the twist of the thread is determined by the setting of the false twister.
  • the characteristic structure of the curling yarn is caused by the over-twist, since when leaving the false twister the thread retains more or less pronounced pieces of thread with the false twist, which is compensated for by a counter-twist by intermediate thread pieces.
  • the size of the thread cross-sections and the length distribution are irregular, so that the crimped yarn has a rough surface structure that is comparable to a natural fiber such as linen.
  • the rough surface structure of the crimped yarn is reinforced by individual open loops protruding from the bandage. Such a loop formation can be reinforced in particular by an additional swirling of the thread before it enters the false twist zone.
  • FIG. 3 shows a device according to the invention, in which the thread is passed through a swirling nozzle before it enters the false twist zone.
  • the structure of the device shown schematically in FIG. 3 is essentially identical to the device shown in FIG. 1 from the first delivery unit 2 to the winding device 10. In this respect, reference is made to the previous description of FIG. 1.
  • a supply unit 17 and a swirling nozzle 18 are arranged between the first delivery unit 2 and the head thread guide 15.
  • the feed unit 17 pulls the thread 4 from the supply spool 1 and guides the thread 4 to the swirling nozzle 18.
  • the thread 4 is passed through a thread channel into which one or more transverse channels open, which are connected to an air supply.
  • the air is directed under pressure onto the thread, so that the filament bundle is swirled.
  • the thread 4 is fed through the feed mechanism 17 with a tradition of the swirling nozzle 18.
  • the delivery speed W 1.1 of the supply unit 17 is therefore greater than the feed speed w 1 of the first supply unit 2.
  • the thread 4 swirled by the swirling nozzle 18 is then guided through the first supply unit 2 into the false twist zone.
  • the retracting false twist is generated in the thread 4 by a false twister 7.
  • the false twist sensor 7 is designed as a friction disk unit, in which a plurality of disks are arranged on three axes in such a way that the disks overlap in a central region through which the thread passes.
  • the friction disks have a peripheral speed D which is in the range from 2.5 to 3.2 times the take-off speed w2, which is determined by the delivery mechanism 3.
  • the crimping of the thread takes place as already described for the exemplary embodiment according to FIG. 1. In this regard, reference is made to the preceding description.
  • the swirling nozzle 18 shown in FIG. 3 can essentially be used here be aligned transversely to a thread channel air duct, so that the Thread is swirled essentially without a promotional effect.
  • the 3 preferably extended by a stretching zone in which a Partial hiding of the thread 4 takes place.
  • the supply plant 18 in FIG Thread run upstream of a take-off mechanism 19 (shown in dashed lines).
  • a take-off mechanism 19 shown in dashed lines.
  • the heater 20 can be used as a heated drawing pin Contact heater or be designed as a non-contact heater.
  • the POY yarn that is presented is replaced by the Trigger mechanism 19 is removed from the supply spool and then in the Stretch zone partially stretched under the effect of heat. Then the partially stretched thread between the delivery mechanisms 18 and 2 swirled, then in the false twist zone to be textured and stretched. After a Post-heat treatment turns the thread into the crimped yarn according to the invention wound.
  • Another process variant can be achieved in that the partially drawn thread is led directly into the false twist zone without intermingling becomes.
  • the trigger mechanism 19 of the device according to FIG. 3 would be Thread run immediately upstream of the first delivery unit 2. This will make a Crimp yarn made that has less open loops and bows.
  • the method according to the invention is suitable for making highly elastic yarns or Set yarns made of polyester, polyamide or polypropylene.
  • the submitted smooth synthetic threads in a spinning process as POY yarns or FDY yarns can be produced.

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

Claims (16)

  1. Procédé de texturation par fausse torsion d'un fil synthétique dans les étapes suivantes :
    1.1 amenée du fil dans une zone de fausse torsion à une vitesse d'amenée w1 ;
    1.2 chauffage du fil à l'intérieur de la zone de fausse torsion à une température T > 200°C, de préférence dans l'étendue de T = 230°C-270°C ;
    1.3 refroidissement du fil à l'intérieur de la zone de fausse torsion ;
    1.4 génération d'une fausse torsion à une vitesse de transmetteur de fausse torsion D, qui se trouve au-dessus d'une limite de saturation qui définit la capacité d'absorption de la fausse torsion par le fil, de préférence au-dessus de 2,2 fois une vitesse de fil Y ; de sorte que le rapport de vitesse est défini par D/Y > 2,2 ;
    1.5 retirage du fil de la zone de fausse torsion à une vitesse de retirage w2 se trouvant en dessous de 1000 m/min, qui pour l'étirage du fil dans la zone de fausse torsion n'est pas plus élevée que 1,4 fois la vitesse d'amenée w1, donc W2 < 1,4 * w1 < 1000 m/min et
    1.6 enroulement du fil en une bobine.
  2. Procédé selon la revendication 1, caractérisé en ce que la fausse torsion sur le fil est générée par un transmetteur de fausse torsion avec plusieurs disques de friction, la vitesse périphérique des disques de friction correspondant à la vitesse de transmetteur de fausse torsion D.
  3. Procédé selon la revendication 2, caractérisé en ce que la vitesse périphérique des disques de friction se trouve de préférence dans l'étendue entre 2,5 fois et 3,2 fois la vitesse de fil Y.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que pour étirer le fil dans la zone de fausse torsion la vitesse de retirage w2 se trouve de préférence dans l'étendue de w2 < 800 m/min et w2 > 1,05 * w1.
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce que pour générer une formation de fil le fil est guidé à travers une buse à tourbillonnement avant d'être amené selon l'étape du procédé 1.1.
  6. Procédé selon la revendication 5, caractérisé en ce que le fil est amené vers la buse à tourbillonnement à une vitesse d'alimentation w1.1 qui est plus élevée que la vitesse d'amenée w1, à savoir w1.1 > w1.
  7. Procédé selon l'une des revendications 1 à 6, caractérisé en ce que le fil est étiré partiellement dans une zone d'étirage directement après avoir été retiré d'une bobine d'alimentation et avant l'amenée selon l'étape du procédé 1.1.
  8. Procédé selon l'une des revendications 1 à 7, caractérisé en ce que le fil est soumis à un post-traitement par chauffage après la génération de la fausse torsion et avant l'enroulement en une bobine.
  9. Fil frisé comprenant une multiplicité de filaments synthétiques qui est fabriqué par étirage, chauffage et texturation par fausse torsion, caractérisé en ce que les filaments synthétiques sont entrelacés irrégulièrement de telle manière que des grandes sections transversales de fil (d1, d3) et des petites sections transversales de fil (d2) avec des boucles et des courbures alternent les unes avec les autres, les boucles et les courbures des sections transversales (d1, d2) présentant des sens opposés de torsion.
  10. Fil frisé selon la revendication 9, caractérisé en ce que la modification de la section transversale de fil en séquence et grandeur se produit irrégulièrement et en ce que les sections transversales de fil individuelles (d1, d2, d3) s'étendent chacune sur une longueur de fil (l1, l2, l3) dans l'étendue de 0,5 mm à 10 mm et au-delà.
  11. Fil frisé selon la revendication 9 ou 10, caractérisé en ce que durant la texturation par fausse torsion les filaments sont frisés à un rapport de vitesse entre la vitesse de transmetteur de fausse torsion D et la vitesse de fil Y de D/Y = 2,2 à 3,2.
  12. Fil frisé selon la revendication 11, caractérisé en ce que durant la texturation par fausse torsion les filaments sont fixés en étant chauffés à une température T = 230°C à 270°C.
  13. Fil frisé selon la revendication 11 ou 12, caractérisé en ce que durant la texturation par fausse torsion les filaments sont étirés à un rapport de vitesses des dispositifs d'alimentation de w2/w1 < 1,4.
  14. Dispositif pour texturer par fausse torsion un fil multifilaire (4), avec un premier dispositif d'alimentation (2), avec un dispositif de chauffage (5), avec un dispositif de refroidissement (6), avec un transmetteur de fausse torsion (7), avec un deuxième dispositif d'alimentation (3) et avec un dispositif d'enroulement (10), caractérisé en ce que le premier dispositif d'alimentation (2) est précédé d'une buse à tourbillonnement (18) pour avancer et/ou pour tourbillonner le fil (4).
  15. Dispositif selon la revendication 14, caractérisé en ce que la buse de tourbillonnement (18) est agencée entre le premier dispositif d'alimentation (2) et un dispositif de fourniture (17) dans le trajet du fil et en ce que le dispositif de fourniture (17) peut être entraíné à une vitesse de fourniture (w1.1) qui est plus élevée que la vitesse d'amenée (w1).
  16. Dispositif selon la revendication 15, caractérisé en ce qu'un dispositif de retirage (19) précède le dispositif de fourniture (17) pour retirer le fil (4) d'une bobine d'alimentation (1) et de l'étirer et en ce qu'un chauffage (20) est agencé entre le dispositif de retirage (19) et le dispositif de fourniture (17).
EP00107124A 1999-11-20 2000-04-07 Procédé de texturation par fausse torsion pour la production d'un fil frisé Expired - Lifetime EP1101848B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19956008 1999-11-20
DE19956008A DE19956008A1 (de) 1999-11-20 1999-11-20 Verfahren zum Falschdralltexturieren eines synthetischen Fadens zu einem Kräuselgarn

Publications (2)

Publication Number Publication Date
EP1101848A1 EP1101848A1 (fr) 2001-05-23
EP1101848B1 true EP1101848B1 (fr) 2004-10-20

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EP00107124A Expired - Lifetime EP1101848B1 (fr) 1999-11-20 2000-04-07 Procédé de texturation par fausse torsion pour la production d'un fil frisé

Country Status (9)

Country Link
US (1) US6408607B1 (fr)
EP (1) EP1101848B1 (fr)
KR (1) KR100669847B1 (fr)
CN (1) CN1150357C (fr)
BR (1) BR0002126A (fr)
DE (2) DE19956008A1 (fr)
ES (1) ES2231064T3 (fr)
TR (1) TR200001156A3 (fr)
TW (1) TW480297B (fr)

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AU5276499A (en) * 1998-09-03 2000-03-27 Retech Aktiengesellschaft Texturing method
US20060201129A1 (en) * 2005-03-09 2006-09-14 Keith Bumgardner Continuous constant tension air covering
CA2876160C (fr) * 2012-06-22 2019-12-31 Toray Industries, Inc. Fil de polyester a fausse torsion et a faible point de fusion et article tisse et tricote a structure multi-couche
CN103603113B (zh) * 2013-12-02 2015-09-30 东丽合成纤维（南通）有限公司 聚酯特殊融着假捻加工丝及其制造方法和制成的编织物
CN105734805A (zh) * 2014-12-12 2016-07-06 东丽纤维研究所（中国）有限公司 一种仿棉针织面料
KR20160089577A (ko) 2015-01-19 2016-07-28 디엔에이치그룹 주식회사 복합 가연사 및 이의 제조방법
EP3374547B1 (fr) * 2015-11-11 2019-09-25 Oerlikon Textile GmbH & Co. KG Procédé de contrôle de la qualité lors de la texturation et dispositif de texturation
KR20160101711A (ko) 2016-07-07 2016-08-25 디엔에이치그룹 주식회사 복합 가연사 및 이의 제조방법

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Publication number Priority date Publication date Assignee Title
DE2245468B2 (de) * 1971-09-20 1974-11-28 Mitsubishi Rayon Co. Ltd., Tokio Verfahren zum Kräuseln von Garn
GB1404658A (en) * 1972-09-18 1975-09-03 Ici Ltd Core yarns
JPS528119A (en) 1975-07-10 1977-01-21 Toray Ind Inc Modified textured yarns and a process for producing them
US4242862A (en) * 1975-12-11 1981-01-06 Toray Industries, Inc. Multifilament yarn having novel configuration and a method for producing the same
US4335572A (en) * 1980-04-10 1982-06-22 Fiber Industries, Inc. Process for production of textured yarn useful in the formation of a crepe fabric
AU538630B2 (en) * 1980-04-10 1984-08-23 Celanese Corporation Textured crepe yarn
DE19526905A1 (de) * 1994-08-03 1996-02-08 Barmag Barmer Maschf Überproportionales D/Y-Verhältnis
KR100220221B1 (ko) * 1996-11-19 1999-09-15 조정래 투톤이 발현되는 폴리에스터 신축가공사 및 그 제조방법

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Publication number Publication date
CN1297069A (zh) 2001-05-30
CN1150357C (zh) 2004-05-19
US6408607B1 (en) 2002-06-25
DE19956008A1 (de) 2001-05-23
TW480297B (en) 2002-03-21
DE50008316D1 (de) 2004-11-25
ES2231064T3 (es) 2005-05-16
EP1101848A1 (fr) 2001-05-23
KR100669847B1 (ko) 2007-01-16
TR200001156A2 (tr) 2001-06-21
BR0002126A (pt) 2001-09-11
KR20010049312A (ko) 2001-06-15
TR200001156A3 (tr) 2001-06-21

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