WO2013041565A1 - Procédé de filature de fils fantaisie, machine de filature de fils fantaisie par ledit procédé et fil fantaisie produit par ledit procédé - Google Patents

Procédé de filature de fils fantaisie, machine de filature de fils fantaisie par ledit procédé et fil fantaisie produit par ledit procédé Download PDF

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Publication number
WO2013041565A1
WO2013041565A1 PCT/EP2012/068440 EP2012068440W WO2013041565A1 WO 2013041565 A1 WO2013041565 A1 WO 2013041565A1 EP 2012068440 W EP2012068440 W EP 2012068440W WO 2013041565 A1 WO2013041565 A1 WO 2013041565A1
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WO
WIPO (PCT)
Prior art keywords
fibres
bundle
effect
base
injection
Prior art date
Application number
PCT/EP2012/068440
Other languages
English (en)
Inventor
Julio Cesar Bourio Castro
Original Assignee
Pinter, S. A.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pinter, S. A. filed Critical Pinter, S. A.
Priority to EP12761618.3A priority Critical patent/EP2758572B1/fr
Priority to CN201280045761.8A priority patent/CN103814161B/zh
Publication of WO2013041565A1 publication Critical patent/WO2013041565A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/32—Regulating or varying draft
    • D01H5/36—Regulating or varying draft according to a pre-arranged pattern, e.g. to produce slubs
    • 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
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/34—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns

Definitions

  • the present invention refers to a method and to a machine for spinning fancy yarns. It also refers to a fancy yarn manufactured by said method including fibres for adding effect inserted between the base fibres of said yarn.
  • WO2011/018685 discloses a production method of fancy yarn in which the base fibres and the effect fibres are drafted separately to obtain a preset thickness, converging then the different bundles at a torsion spindle to form the yarn.
  • the fancy yarn manufactured by the method of said patent has the advantage that the desired contrast effect is obtained adding fibres of different nature or colour.
  • this contrast effect can be enhanced applying a method such as that disclosed in CN1336453, US-A-2069446 or GB-A-25367.
  • CN1336453, US-A-069446 and GB-A-25367 disclose methods for manufacturing a fancy yarn having the particularity that the bundles of effect fibres are added to the bundle of base fibres during the drafting step of said bundle of base fibres, all the fibres together obtaining the torsion.
  • the claimed methods comprise a step of injecting continuously a bundle of base fibres in a drafting train of said bundle of base fibres, and the step of injecting intermittently a bundle of effect fibres at said same drafting train when the bundle of base fibres is injected continuously.
  • the fancy yarn of the above-mentioned patentsCN 1336453, US-A-069446 and GB-A-25367 have an enhanced chromatic contrast because during the drafting step the effect fibres are joined and are combined completely with the base fibres.
  • this fancy yarn has some features that can be enhanced.
  • WO-A-2008/068294 discloses a device and method for producing fancy yarn on a ring spinning machine having at least two support yarns which are twisted together and fibers of a roving which are introduced by means of a drafting device.
  • a support yarn guide feeds in at least two support yarns which are at a distance from one another, in the region of a pair of rollers which are disposed in front of a spinning triangle.
  • the method of the above-mentioned patent application uses two support yarns to fix the position of the effect fibers of the roving so that the control of the injection place of the effect fibres is improved.
  • the existence of two support yams makes more difficult the spinning operation and does not allow to obtain the desired chromatic contrast because the effect fibres cannot join and combine completely with the base fibres of the two support yams.
  • a first object of the present invention is to solve said drawbacks, providing a method and a machine for spinning fancy yams presenting the advantages that will be described hereinafter.
  • a second object of the present invention is to solve said drawbacks, developing a fancy yam with a high quality.
  • the present invention provides a method for spinning fancy yams comprising the steps of:
  • step b) while said bundle of base fibres is continuously injected, injecting intermittently a bundle of effect fibres to said same drafting train to add intermittently said bundle of effect fibres to said bundle of base fibres, the intermittent injection of effect fibres of step b) including the steps of:
  • step b) then, moving backwardly said stretch a preset length, said backward movement permitting the forced cut or separation of a fragment of bundle of effect fibres to be added to the bundle of base fibres in said drafting train, characterised in that after the injection of step b) the following step is carried out:
  • the present invention provides a machine for spinning fancy yarns according to the claimed method comprising a fibre drafting train provided, at each spinning position, with injection means of a bundle of base fibres and injection means of a bundle of effect fibres, said means for injecting effect fibres being associated to said means for injection base fibres, so that said bundle of effect fibres is susceptible of being added intermittently to said bundle of base fibres in the same drafting train, said means for injecting effect fibres being configured to permit the backward movement of a stretch of said bundle of effect fibres when said means for injecting effect fibres receives a backward movement signal from a processing and control unit of said machine, the machine being characterised in that said processing and control unit is configured to permit the acceleration of the injection speed of the bundle of base fibres for producing a slubby in said bundle of base fibres, said acceleration being done at the moment when said fragment of the bundle of effect fibres is added to the base fibres, the injection place of said fragment matching with said slubby.
  • the present invention provides a fancy yarn manufactured by the claimed method that it comprises a plurality of fragments of a bundle of effect fibres added in a discontinued way to a bundle of base fibres.
  • the fancy yarn is characterized in that it comprises a plurality of slubbies of said bundle of base fibres, each of said slubbies including one of said fragments of a bundle of effect fibres matching with an over-thickness of base fibres, said over-thickness being obtained by the punctual reduction of the drafting ratio of the bundle of base fibres that causes the accumulation of said fibres.
  • fragment of a bundle of effect fibres is meant a stretch of a bundle of fibres for adding effect that has a substantially uniform linear mass of fibres.
  • slubby means an over-thickness of base fibres of a yarn produced by the accumulation of fibres by a punctual reduction of the drafting ratio of the bundle of base fibres.
  • the claimed method has the advantage with respect to the methods of the prior art that the effect fibres are added to the bundle of base fibres in a very controlled way.
  • the accumulation of base fibres producing the slubby makes easier the control of the injection of the effect fibres, because it forces the massive exit of the added effect fibres. Therefore, the length of the additions is more regular (shorter and more compact) than those from the state of the art. Furthermore, it has been observed that the slubby enhances the effect of the effect fibres and makes easier their holding, which prevents said effect fibres to be loosened or broken easily, as in the yarns of the state of the art.
  • the injection of effect fibres is carried out so that the drafting train of base fibres advances a stretch of the bundle of effect fibres and then, moves backwardly said stretch a preset length to permit the forced cut or separation of a fragment of the bundle of effect fibres. Thanks to this forced cut or separation, the addition of effect fibres is stopped at the desired moment, which positively impacts on the control and quality of the obtained fancy yarn. This is because the formation of said fragment prevents the injection of more fibres in the same bundle.
  • Another advantage of the claimed method is that the formation of said fragments permits the fibres to be added in more compact groups to the bundle of base fibres, which enhances the effect of the added fibres and also the quality of the obtained yarn.
  • step bii) the backward movement of said stretch of effect fibres is done at a speed higher than the injection speed of the bundle of base fibres that are added to the effect fibres.
  • step bi said bundle of effect fibres is inserted in the drafting train at a speed which is the same or lower than the injection speed of the bundle of base fibres.
  • said acceleration is done at the moment in which said fragment is placed between drafting belts of the drafting train of said bundle of base fibres. It has been observed that this moment is the more suitable moment to control with a greater efficiency the length and thickness of the additions of effect fibres in the resulting yarn.
  • step c) said injection speed of the bundle of base fibres is accelerated a preset time according to the desired length of the slubby, and a preset value according to the desired thickness of the slubby.
  • the length and the thickness of the slubby can be controlled by a program that determines the acceleration value and time that is applied. Furthermore, it must be pointed out that the control of the length and thickness of the slubby involves itself a control of the length and thickness of the additions of effect fibres in the resulting yarn.
  • the acceleration step c) is carried out alternatively after the injection step b) so that a fancy yarn is obtained that alternates fragments of the bundle of effect fibres matching with said slubby with fragments of the bundle of effect fibres without slubby in the bundle of base fibres.
  • the present invention also provides a spinning machine, particularly a continuous spinning machine, which has the advantage that permits to carry out said method.
  • the claimed spinning machine has the particularity that it includes a processing and control unit that is configured to permit the acceleration of the injection speed of the bundle of base fibres for producing a slubby in said bundle of base fibres at the moment when a fragment of the bundle of effect fibres is added to the base fibres, so that the injection place of said fragment matches with said slubby.
  • the drafting train of the fibres has injection means of the effect fibres that are configured to permit the backward movement of a stretch of said bundle of effect fibres when said fibre injecting means receives a backward movement signal from a processing and control unit that carries out the claimed method. This backward movement of the bundle of effect fibres produced by the injection means of effect fibres permits the forced cut or separation of a fragment of said bundle that is provided to be added to the bundle of base fibres.
  • said injection means of a bundle of effect fibres includes, in each spinning position, at least a first pair of rollers between which said bundle of effect fibres extends when said machine is operating, said first pair of rollers being able to rotate in both directions to permit the advancement or backward movement of said bundle of fibres
  • said injection means of a bundle of base fibres include, at each spinning position, at least a second pair of rollers between which said bundle of base fibres extends when said machine is operating, said injection rollers of base fibres being placed according to the first pair of rollers of effect fibres to permit the intermittent addition of fragments of a bundle of effect fibres to a bundle of base fibres passing by said second pair of rollers.
  • said machine comprises fibre drafting belts associated with said second pair of rollers.
  • the drafting train of the machine comprises, at the spinning position, a first condenser element configured as a funnel arranged between said injecting means of effect fibres and said injecting means of base fibres, said first condenser covering substantially the distance from the means for injecting effect fibres to the means for injecting base fibres to make easier the joining of said fragment of the bundle of effect fibres with the bundle of base fibres.
  • said first condenser element comprises a first inlet stretch as a mouth to join said fragment and said bundle of base fibres from one side to the other, and a second outlet stretch as a tunnel to merge or join said fragment with said bundle of base fibres.
  • This shape of the condenser guarantees the feeding efficiency of the fibres to the drafting bag of the machine.
  • the drafting train of said machine comprises, at each spinning position, supporting means of said first condenser as a funnel, said supporting means including:
  • said second piece including a support strip that is joined to a chassis of said machine, said strip permitting the lateral movement of said first piece.
  • Said support strip has the following functions. On one hand, as it is joined to the chassis of the machine, it supports the first piece on which the condenser is fixed and prevents its undesired vertical movement. On the other hand, acting as a spring, it permits the horizontal movement of the piece on which the condenser is fixed, preventing the overcharge of the motor driving said piece.
  • the drafting train comprises, at each spinning position, a second condenser element configured as a floating wedge, said second condenser being placed floating at the outlet of a drafting belt associated with said injecting means of base fibres, permitting said second floating condenser to unite the assembly of effect fibres and base fibres before their torsion.
  • the second floating condenser as a wedge can be placed at the outlet of the drafting belts associated with the injecting means of the base fibres, not being necessary to change the position of said means or the position of the drafting belts itself, as in the machine of the state of the art.
  • the machines of the state of the art use a condenser with a funnel shape at the outlet of the drafting bag.
  • This condenser and the element that supports it occupy a space that is necessary to be obtained changing the position of the injecting means of the base fibres or of the drafting bag itself, which involves a loss of control of the quality of the yarn at the moment previous to the torsion.
  • the condenser with a floating wedge shape of the present invention occupies very little space, so that it can be placed at the outlet of the drafting bag with no necessity of changing the position of said bag or the injecting means of base fibres.
  • the drafting train of said machine comprises, at each spinning position, means for holding said second condenser as a floating wedge, said means including a support rod horizontally movable on a pressure arm of said drafting train.
  • This support rod and the second floating condenser itself are horizontally moved by the movement of the bundle of fibres itself at the outlet of the drafting belts of the machine and they occupy a very little space in the machine.
  • the present invention provides a fancy yarn manufactured by the claimed method presenting the particularity that it comprises a plurality of fragments of a bundle of effect fibres added in a discontinued way to a bundle of base fibres.
  • the additions of the effect fibres to the yarn of the present invention are formed from fragments of a bundle of fibres, so that they present a more uniform and compact aspect that considerably enhances the effect of the added fibres, and also the final quality of the obtained yarn.
  • the length of the additions of effect fibres is more regular (more uniform and compact) than those of the state of the art. Furthermore, it has been confirmed that the slubby improves the effect of the effect fibres and makes easier its holding, which prevents said effect fibres to be loosened or broken easily, as with the yarns of the state of the art.
  • Fig. 1 shows a side view of a drafting train of a machine for spinning fancy yarn of the state of the art.
  • Fig. 2 shows a side view of a drafting train of a preferred embodiment of a spinning machine of the present invention.
  • Fig. 3 shows a perspective view of the drafting train of Fig. 2.
  • Fig. 4 is an upper perspective view of the drafting train of Fig. 2 in which the upper rollers from the third line of rollers have been removed to see the detail of the floating wedge condenser.
  • Fig. 5 is a rear perspective view of the drafting train of Fig. 2.
  • Fig. 6 shows a view and a detail of a fancy yarn obtained with the claimed method.
  • the drafting train 1 of a continuous spinning machine of the state of the art includes three lines or pairs of rollers 2a, 2b, 2c between which, in each spinning position, a bundle 3 of base fibres extends. These pairs of rollers 2a, 2b, and 2c rotate at different speeds and with the same rotation direction, and they are normally linked to each other by a gear transmission system.
  • Just one bundle 3 of base fibres extends through said three pairs of rollers 2a, 2b, 2c, and for each spinning position, which, when is subjected to increasing rotation speeds of said rollers 2a, 2b, 2c, produces a drafting of said bundle 3 so that its linear mass is decreased until a preset limit for forming a simple yarn with a determined thickness is reached.
  • the fibres already drafted from the bundle 3 enter in a torsion spindle (not shown).
  • each pair of rollers 2a, 2b, 2c are configured by cylinders that are mounted on trestles 4 that also support a bar 5 on which pressure arms 6 are mounted (one arm 6 for each two spinning positions). These pressure arms 6 have the function of placing and holding applying pressure the upper rollers of the three lines of rollers (the rear one 2a, the intermediate one 2b and the frontal one 2c) on their respective lower rollers.
  • the drafting train 1 of the state of the art also includes, for each spinning position, condensers 7 that have the function of guiding the bundle 3 of base fibres when it enters to the first pair 2a of rollers, and drafting belts 8 placed between the second 2b and the third 2c pair of rollers. These drafting belts 8 determine what is commonly defined as a fibre-drafting bag 9.
  • the machine of the present invention comprises a drafting train 1 that presents the particularity that, at each spinning position, the first pair 2a of rollers is responsible of injecting a bundle 10 of effect fibres, being the second pair 2b of rollers that which injects now the bundle 3 of base fibres.
  • the first pair 2a of rollers which constitute what in the present specification has been identified as means for injecting a bundle 10 of effect fibres, is driven by a servomotor through a processing and control unit that is programmed to inject intermittently the bundle 10 of effect fibres to the bundle 3 of base fibres.
  • This injection of the effect fibres is done during the continuous injection of said bundle 3 of base fibres through the second pair 2b of rollers that is driven by a second servomotor associated with the same processing and control unit.
  • the injection of effect fibres is done advancing a stretch of the bundle 10 of effect fibres 10, and then moving back said stretch a preset length to permit the forced cut or separation of a fragment of the bundle 10 of the effect fibres to be added to the bundle 3 of base fibres. Thanks to this forced cut or separation, the addition of effect fibres is stopped at the desired moment, which positively impacts on the control and quality of the obtained fancy yarn.
  • the first pair 2a of rollers is configured to rotate in a direction opposed to the advance direction, when the servomotor that drives said rollers 2a receives a backward movement signal from said processing and control unit.
  • the processing and control unit has been programmed so that the backward movement of the bundle 10 of effect fibres is done at a speed that is higher than the injection speed of the bundle 3 of base fibres, because it has been observed that the cut or separation of the fragments is done in a more efficient way (a cut more sharp and clean).
  • this unit has been programmed to accelerate the injection speed of the bundle 3 of base fibres (speed of the second pair 2b of rollers) just at the moment in which a fragment of one bundle 10 of effect fibres is added in the drafting bag 9 to the bundle 3 of base fibres. Therefore, the injection place of said fragment matches with a slubby produced because of this acceleration.
  • the accumulation of fibres that produces the slubby (drafting reduction) has the advantage that makes easier the control of the length and the thickness of the injection of effect fibres, increases the effect of said fibres and makes easier its holding.
  • the bundle 10 of effect fibres is added to the bundle 3 of base fibres through a first condenser element 11 configured as a funnel that is placed between the first pair 2a of rollers and the second pair 2b of rollers.
  • This first condenser element 11 includes a first inlet stretch 1 la as a mouth that has a width enough to permit that each fragment of the bundle 10 of effect fibres and the bundle 3 of base fibres are joined on besides the other instead of one on the other, as in the state of the art.
  • the same first condenser element 11 includes a second outlet stretch 1 lb as a tunnel to merge or join each fragment of the bundle 10 of effect fibres with the bundle 3 of base fibres.
  • Another key element of the drafting train 1 of the claimed machine is the second condenser element 12 configured as a floating wedge that is placed at the outlet of the drafting bag 9 of each spinning position.
  • Fig. 4 is shown is detail the substantially flat shape of said second condenser 12, which permit its placement between the second 2b and third 2c pair of rollers not changing the position of said rollers of the drafting bag 9 itself.
  • This condenser 12 guarantees the cohesion of the fibres before the torsion, preventing the loss by aspiration of a great number of effect fibres.
  • the first condenser 11 With a funnel shape, it is fixed on a banister 13 that can be horizontally moved when it receives the oscillating movement from an engine.
  • This banister 13 is joined to the chassis of the machine; particularly to the bar 5 on which the pressure arms 6 are mounted, through a strip 14 (see Fig. 5).
  • the strip 14 has the advantage that, on one hand, prevents the vertical movement of the banister 13 and, on the other hand, acts as a spring permitting the horizontal movement of the banister 13 and prevents the overcharge of the engine through which said banister 13 is driven.
  • the horizontal movement of the banister 13, and with it the first condenser 11, is necessary to prevent the premature wear of the upper rollers 2b, 2c produced by the passage of the fibres.
  • this is held by a rod 15 associated to the pressure arm 6 that holds the upper rollers 2a, 2b, 2c.
  • This rod 15 can be horizontally moved on the arm 6 when the condenser 12 itself moves with the movement of the fibres produced by said banister 13.
  • the ends of the same rod 15 hold each one condenser 12, so that the same rod 15 can be used for two spinning positions.
  • the processing and control unit is first programmed with the following input data:
  • the processing and control unit has been programmed to produce the fancy yarn as follows:
  • the process is started, at each spinning position, in the moment that the first pair 2a of rollers is started driven by an independent servomotor for injecting an intermittent stretch of bundle 10 of effect fibres in the bundle 3 of base fibres that is being injected by the second pair 2b of rollers.
  • This injection moment of the effect fibres is ordered by the processing and control unit through a "random" system that takes into account the maximum and minimum separation lengths between fibre additions to prevent the production of what is known as "moiree" or geometric repetition.
  • the length of the injected bundle 10 of effect fibres is 15 mm and the injection speed of the bundle 10 of effect fibres (speed of the first pair 2a of rollers) is a 20% lower than the injection speed of the bundle 3 of base fibres (speed of the second pair 2b of rollers).
  • the first pair 2a of rollers is stopped and they begin the rotation in the opposite direction moving backwardly a stretch of the bundle 10 of effect fibres a preset length, said back movement permitting the cut or separation of a fragment to be added to the bundle 3 of base fibres in the drafting train 1.
  • the backward movement length of the stretch of effect fibres is 5 mm and the back movement speed of said stretch is a 60% higher than the injection speed of the bundle 3 of effect fibres (speed of the second pair 2b of rollers).
  • the fragment of the bundle 10 of effect fibres cut or separated is inserted inside the drafting bag 9 to be added to the bundle 3 of base fibres.
  • an acceleration of the injection speed of the base fibres is produced (speed of the second pair 2b of rollers) that produces an accumulation of fibres producing the slubby, matching the injection place of the fragment of effect fibres with said slubby.
  • the processing and control unit has been programmed to provide a slubby with a length of 20 mm and a preset thickness that is obtained increasing 3 times the injection speed of the base fibres 3 (speed of the rollers
  • the slubby makes easier the control of the length and thickness of the additions of the effect fibres, and improves the effect of said fibres.
  • Fig. 6 shows a view and a detail of a fancy yarn 16 obtained with the claimed method.
  • the additions 16a of effect fibres match each with a slubby 17 of the base fibres 3.
  • the additions have a uniform and compact aspect providing the yarn a great quality.

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

Abstract

L'invention concerne un procédé de filature de fils fantaisie (16), comportant les étapes consistant à : a) injecter en continu un faisceau (3) de fibres de base dans un train (1) d'étirage ; b) lorsque ledit faisceau (3) de fibres de base est injecté en continu, injecter par intermittence un faisceau (10) de fibres d'effet dans le même train (1) d'étirage pour ajouter par intermittence ledit faisceau (10) de fibres d'effet audit faisceau (3) de fibres de base et, l'injection de l'étape b) étant suivie de : c) l'accélération de la vitesse d'injection du faisceau (3) de fibres de base pour produire un renflement (17) sur ledit faisceau (3) de fibres de base, ladite accélération étant réalisée au moment où un fragment du faisceau (10) de fibres d'effet est ajouté aux fibres de base, le lieu d'injection dudit fragment correspondant audit renflement (17). Le fil fantaisie (16) fabriqué par le procédé comporte une pluralité de renflements (17) dudit faisceau (3) de fibres de base, chacun desdits renflements (17) comprenant un desdits fragments d'un faisceau (10) de fibres d'effet correspondant à une surépaisseur de fibres de base, ladite surépaisseur étant obtenue par la réduction ponctuelle du rapport d'étirage du faisceau (3) de fibres de base.
PCT/EP2012/068440 2011-09-20 2012-09-19 Procédé de filature de fils fantaisie, machine de filature de fils fantaisie par ledit procédé et fil fantaisie produit par ledit procédé WO2013041565A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12761618.3A EP2758572B1 (fr) 2011-09-20 2012-09-19 Procede de filature de fil fantaisie, machine pour la filature de fil fantaisie selon ledit procede et fil fantaisie produit selon ledit procede
CN201280045761.8A CN103814161B (zh) 2011-09-20 2012-09-19 纺制花式纱线的方法、用于通过所述方法纺制花式纱线的机器以及通过所述方法生产的花式纱线

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP11382299A EP2573239A1 (fr) 2011-09-20 2011-09-20 Procédé de filature de fil fantaisie, machine pour la filature de fil fantaisie selon ledit procédé et fil fantaisie produit selon ledit procédé
EP11382299.3 2011-09-20

Publications (1)

Publication Number Publication Date
WO2013041565A1 true WO2013041565A1 (fr) 2013-03-28

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EP (2) EP2573239A1 (fr)
CN (1) CN103814161B (fr)
WO (1) WO2013041565A1 (fr)

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WO2015033811A1 (fr) 2013-09-09 2015-03-12 株式会社 豊田自動織機 Dispositif d'étirage dans un métier à filer

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JP5874775B2 (ja) * 2014-04-03 2016-03-02 株式会社豊田自動織機 紡機におけるドラフト装置
WO2017046218A2 (fr) * 2015-09-18 2017-03-23 Amsler Tex Ag Dispositif et procédé de fabrication d'un fil extensible
EP3374546A1 (fr) * 2015-11-11 2018-09-19 Pinter Caipo, S.A.U. Dispositif de liaison de fibres pendant le processus de filature de fil fantaisie, et machine et procédé de filature de fil fantaisie comprenant ledit dispositif
US11598027B2 (en) 2019-12-18 2023-03-07 Patrick Yarn Mills, Inc. Methods and systems for forming a composite yarn

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CN103814161B (zh) 2016-04-06
CN103814161A (zh) 2014-05-21

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