EP1630268A1 - Procédé permettant d'assurer la qualité d'un fil textile et machine de traitement de fil - Google Patents

Procédé permettant d'assurer la qualité d'un fil textile et machine de traitement de fil Download PDF

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Publication number
EP1630268A1
EP1630268A1 EP04020215A EP04020215A EP1630268A1 EP 1630268 A1 EP1630268 A1 EP 1630268A1 EP 04020215 A EP04020215 A EP 04020215A EP 04020215 A EP04020215 A EP 04020215A EP 1630268 A1 EP1630268 A1 EP 1630268A1
Authority
EP
European Patent Office
Prior art keywords
yarn
tension
multifilament
production unit
thread
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.)
Granted
Application number
EP04020215A
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German (de)
English (en)
Other versions
EP1630268B1 (fr
Inventor
Davide Maccabruni
Robin Gutbrod
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.)
SSM Schaerer Schweiter Mettler AG
Original Assignee
SSM AG
SSM Schaerer Schweiter Mettler AG
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 SSM AG, SSM Schaerer Schweiter Mettler AG filed Critical SSM AG
Priority to DE502004002633T priority Critical patent/DE502004002633D1/de
Priority to EP04020215A priority patent/EP1630268B1/fr
Priority to TW094128630A priority patent/TWI294927B/zh
Priority to US11/209,965 priority patent/US7137238B2/en
Priority to KR1020050077919A priority patent/KR100698660B1/ko
Priority to JP2005246201A priority patent/JP2006070424A/ja
Priority to CN200510096702A priority patent/CN100587140C/zh
Publication of EP1630268A1 publication Critical patent/EP1630268A1/fr
Application granted granted Critical
Publication of EP1630268B1 publication Critical patent/EP1630268B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D02G1/02—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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/10—Tension devices
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/16—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material
    • 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
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
    • D02G1/167—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam including means for monitoring or controlling yarn processing

Definitions

  • the invention relates to a yarn quality assurance method in the production of a multifilament yarn and to a yarn processing machine for performing the yarn quality assurance method.
  • the yarn quality assurance method comprises the steps of unwinding at least one yarn from each supply bobbin and feeding the yarns through a respective yarn path into a multifilament yarn production unit, wherein the yarns are held at a yarn tension.
  • the yarn quality assurance method is suitable in principle for use in any multifilament yarn production process, eg also in draw-winding or weaving, but in particular for use in texturing processes, in particular false-twist texturing processes and / or air-covering processes.
  • Machines with an air-covering nozzle are used to continuously process filament yarns by means of an air jet (interlacing jet) into a multi-component yarn (air-covering yarn).
  • air jet interlacing jet
  • at least one sheath thread are joined as components with a core thread.
  • the aim of this process is to achieve as uniform as possible knotting nodes in the multi-component yarn and thus to connect the components together, whereby the multifilament yarn produced has both mechanical and structural elasticity.
  • An example of an air-covering machine is disclosed in US 6,405,519 B1.
  • the core thread is usually an elastomeric-containing highly elastic yarn, e.g. Lycra.
  • the sheaths may include various fancy yarns.
  • the yarns ie the sheaths and the core thread, are conveyed via delivery mechanisms, e.g. Galetten, fed to an air-covering nozzle. After the multicomponent yarn has passed through the air-covering nozzle, the multicomponent yarn is taken up by a spool on which the multicomponent yarn is wound up.
  • delivery mechanisms e.g. Galetten
  • the elastic yarn is positively, tangentially, by means of a supply spool, with the aid of a special delivery, unwound (tangential deduction). To perform this operation, at least one additional drive is necessary.
  • the supply bobbin of the elastic yarn In order to unwind tangentially the supply bobbin of the elastic yarn, it is positioned with its axis parallel to the axes of delivery mechanisms used for unwinding. If the feed bobbin is empty, the entire manufacturing process must be stopped so that the feed bobbin can be replaced.
  • complicated systems were developed which make an automatic supply bobbin exchange possible.
  • the sheaths may e.g. with a known Garnbearbeitungsmaschinen for processing filament yarns with a Heiltexturierdüse (Lufttexturiermaschine) are produced. Usually, the production of sheaths and processing, e.g. with the air-texturing nozzle, performed by a single machine. Such Heiltexturiermaschine is disclosed in DE 39 09 516 A1. Air texturing machines are used to consistently curl smooth structureless filament yarns. Several original yarns (core threads) can be processed into a textured yarn using effect yarns of different traditions. In this process, the filament yarns are uniformly crimped and, if necessary, arranged around the original yarns. The sheaths may include various fancy yarns.
  • the filament yarns ie the sheath threads and the core thread, are conveyed via delivery mechanisms, e.g. Galetten, fed to a Heiltexturierdüse.
  • delivery mechanisms e.g. Galetten
  • the multicomponent effect yarn (multicomponent yarn) produced is picked up by a spool on which the multicomponent yarn is wound.
  • the multicomponent yarn can be stretched, fixed, shrunk and / or sharpened again.
  • the sheath threads with a yarn processing machine for performing false twist texturing processes.
  • This process is also referred to as torsional crimping.
  • the filament yarn is obtained between two pairs of cylinders, namely a delivery mechanism and a take-off unit, by a swirl generator a so-called false twist, which is fixed by heating the filament yarn by utilizing its thermoplastic properties in the capillary filaments. After cooling, latent torsional forces act and lead to the crimping of the produced fancy yarn.
  • the multifilament yarn is generally unwound from a supply spool, passed through a first delivery, then heated in a heater (primary heater), cooled on a cooling rail, through the swirl and a second delivery mechanism arranged behind it, a so-called deduction delivery, guided, to be subsequently wound up on a yarn package.
  • the swirl generator serves to temporarily turn up the multifilament yarn in one operation, ie to produce a twist of the multifilament yarn, or of the individual filament yarns, by transmitting an axial torque to the filament yarns. This temporary twisting (twisted state) is called false-twisted wire (FD).
  • a friction twist generator as a swirl generator.
  • the filament yarn is driven directly by means of friction surfaces. Due to the smaller diameter of the thread compared to the spindle, ie, for example, a disc of a Scheibenfriktionsaggregats, a high transmission ratio between the rotation of the disc and the twisting of the filament yarn is realized.
  • the three-axis disc friction unit is particularly well suited for this purpose.
  • a swirl generator are therefore mainly friction twister, in particular three-axis Scheibenfriktionsaggregate, but also so-called nip Twister, by means of crossed belt to transmit torque to the filament yarns used.
  • Such a disk friction unit is disclosed, for example, in DE 3743708 A1.
  • a nip twister is shown in JP 06184848 A.
  • the twist distribution by friction allows very high rotational and thus high production speeds. If the friction conditions between the filament yarns and the swirl generator vary, ie if process fluctuations or instabilities occur, then this leads to an irregular yarn structure or defects in the yarn and thus to quality losses in the yarn produced.
  • Such errors or disturbances can result, for example, from disturbances in the spinning, from uneven application or uneven adjustment of the spin finish on the thread surface, from temperature fluctuations during texturing or from contamination eg in the heater and / or in the cooling rail.
  • the disturbances can cause a so-called ballooning of the yarn, which occurs especially at high rotational speeds and the associated high thread tensions. Ballooning the yarn results in an uncontrolled threadline and thread tension variations.
  • the thread can jump over the disc surface of the twister, for example.
  • This swirl slip leads to a rotation deficit within the swirl zone, ie the twist density, ie the number of twists per unit length of the filament yarns fluctuates.
  • the yarn to be processed can thereby pass in sections without twisting the twister.
  • the thread tension increases abruptly, which disturbs the balance of forces in the swirl generator. Zones are created in the thread without rotation. Besides, stretching values fluctuate, staining becomes insufficient. Texturing speeds of over 300 m / min are possible with friction twisters.
  • the heating and cooling zones in the texturing zone are adapted in length to these texturing speeds, in order to still have sufficient heat setting to ensure the crimping.
  • a length of the texturing zone of a total of 5 to 6 m, the phenomenon of surging occurs particularly frequently in connection with the frictionally engaged friction twisters.
  • the generated torsional density can not be controlled very precisely, as a result of which the procedural production restriction of the surging, and thus the ballooning of the thread in the swirl zone with accompanying thread tension fluctuations, which in turn result in twisting variations, occur.
  • the stability limit of the process is influenced on the one hand by the geometry of the texturing zone, eg its length, deflection points, thread support, etc., and on the other hand by the quality of the original material, eg its uniformity, preparation etc., ie by occurring process fluctuations.
  • the yarn tension of a yarn is measured in the yarn path after a conditioning and the yarn tension of the controlled yarn before its winding, ie at the end of the conditioning process, according to a derived from the measured yarn tension controlled variable by means of a yarn tension control module in a predetermined yarn tension range kept constant.
  • the yarn tension control module in this case comprises a yarn brake and a controllable delivery mechanism, by means of which the yarn tension is regulated by braking and / or accelerating the yarn speed of the yarn.
  • the invention has for its object to provide a yarn quality assurance method and a yarn processing machine, which avoid the disadvantages of the prior art and in particular allow a high process speed with minimal downtime of the yarn processing machine.
  • the thread tension control module may e.g. according to the device disclosed in EP 0 875 479 A1. It is essential that the thread tension control module has an active, adjustable drive with the ability to regulate the thread tension.
  • the measurement of the thread tension can e.g. with a yarn tension sensor comprising a strain gauge to be performed.
  • a thread tension regulation module it may be a standard delivery plant combined with any type of thread tension regulation system, e.g. a meter measuring the electric current flowing through the delivery mechanism together with a circuit evaluating the measured current.
  • the delivery mechanism itself acts in such an arrangement as a thread tension sensor.
  • the thread tension in the Abspulregion is stabilized, so that a regular profile of the thread tension over time, regardless of the process speed and the diameter of the supply bobbin, is maintained.
  • This ensures consistent quality of the produced multifilament yarn, eg the textured yarn, over the entire length of, for example, POY yarn on the supply spool.
  • an increase in the production rate of the production process, while maintaining quality is achieved.
  • the inventive method allows a complete “online" control of the thread tension when unwinding the yarn from the supply spool.
  • the thread tension can be kept constant regardless of the quality of the yarn, the diameter of the supply spool and the selected unwinding speed.
  • the thread tension can be permanently reduced, thereby enabling a higher production speed and efficiency.
  • the controlled yarn is fed by means of the multifilament yarn production unit, preferably via a delivery mechanism, first to a heater, subsequently to a cooler and subsequently to an air-texturing nozzle or preferably to a swirl unit.
  • the method according to the invention is accordingly used in false-twist texturing.
  • the "surging" typically occurring at high process speeds is largely avoided.
  • the inventive method is particularly preferably used in a highly elastic yarn as the yarn to be controlled, wherein the highly elastic yarn is fed preferably via a delivery mechanism and / or at least one thread guide device, an air-covering nozzle of the Multifilamentgarnher thoroughlysaku.
  • the unwinding of the highly elastic yarn is done overhead.
  • the inventive method allows an overhead pulling off of the elastic yarn, since occurring yarn tension fluctuations are compensated. If the elastic yarn is removed overhead during an air-covering process, interruptions to the production process can be avoided by changing the supply bobbin. When deducting overhead, the feed bobbin does not rotate itself, thus working overhead with an immediately usable spare reserve bobbin is possible, whereby downtime of a correspondingly working yarn processing machine can be minimized.
  • the reserve feed coil becomes symmetrical to the vertical one
  • a yarn speed of the controlled yarn is decelerated and / or accelerated by means of the yarn tension control module.
  • the thread tension can be both increased and decreased. If the measured yarn tension is recorded, the quality of the produced multifilament yarn can be subsequently evaluated and checked.
  • a yarn processing machine has at least one feed bobbin receptacle configured to receive at least one supply bobbin, yarns of which can be unwound, and a multifilament yarn production unit, into which the yarns can be fed from the supply bobbins via yarn runs, each with a thread tension.
  • a thread tension regulation module with a thread tension sensor is arranged in at least one controlled yarn path between the associated supply spool receptacle and the multifilament yarn production unit, wherein the yarn tension control module preferably comprises a yarn brake and / or a controllable yarn supply system.
  • the yarn tension control module is configured to be a controlled variable of one of the yarn tension sensor derive measured thread tension and keep the thread tension in a predetermined yarn tension range constant.
  • the multifilament yarn production unit has arranged in the yarn path one behind the other preferably a delivery mechanism, a heater and a subsequently arranged cooler and subsequently arranged an air-texturing or preferably a swirl generator.
  • the yarn processing machine is a texturing machine, ie a false twist texturing machine or an air texturing machine, in which production errors caused by thread tension fluctuations are largely excluded.
  • the multifilament yarn production unit preferably comprises an air-covering nozzle, wherein preferably a delivery mechanism and / or at least one thread guiding device are arranged in the yarn path in front of the air-covering nozzle, and wherein a supply coil receptacle of a controlled yarn path is set up, a highly elastic yarn of one of the Unwind spool receiver taken overhead bobbin.
  • the delivery mechanism can already be part of the thread tension control module.
  • the thread guide device allows the highly elastic yarn to be always fed from the same position from the thread tension control module.
  • the latter is advantageous, in particular, when unwinding the elastic yarn from the supply bobbin, since when the bobbins are being unwound by means of a reserve supply bobbin, a break in the production process can be avoided by changing the supply bobbin. wherein the reserve supply spool can be kept ready in a further supply spool receptacle.
  • FIG. 1 shows a controlled yarn path 1 in a yarn processing machine according to the invention, by means of which an air-covering process is carried out with an elastic yarn and a yarn produced in a false twist texturing unit 3 as a cover yarn.
  • the method according to the invention is shown here using the example of a yarn processing machine which produces a cover thread for air-covering by means of false-twist texturing.
  • the method according to the invention and in particular the preferred embodiment of feeding an elastic yarn as a controlled yarn into an air-covering nozzle 5 as a multifilament yarn producing unit via an actively driven delivery mechanism 7 and the over-head unwinding of the elastic yarn can just as well be used in connection with the manufacture an air-textured yarn.
  • the figure shows a possible arrangement of elements that in a Combining a false-twist texturing process with an air-covering process may be included.
  • the texturing unit in which the yarn to be textured, which has been unwound from a supply spool 8 via a delivery mechanism 9, has passed through a heater 10, a condenser 11 and a swirl unit 12, the textured yarn is passed around a delivery mechanism 13, before it is fed into the air conveyor.
  • Covering nozzle 5 enters where it is connected to the elastic yarn, ie where by means of small knots, the textured yarn with the elastic yarn in a compact structure for the further process, ie essentially the winding of the finished multifilament yarn on a coil 15 is connected ,
  • the finished multifilament yarn, before it is wound onto the spool 15, is guided over a delivery mechanism 17 arranged between the air-covering nozzle 5 and the spool 15 and a thread guiding device 18.
  • the elastic yarn is withdrawn from a supply spool 20 overhead.
  • the elastic yarn is first passed through a thread guide device 22 and then passed over the actively driven delivery mechanism 7. This delivery mechanism 7 is part of a yarn tension control module 25.
  • the feed bobbin 20 is always fixedly received by a feed bobbin receptacle 24.
  • one end 27 of the yarn of the supply bobbin 20 can be connected to a beginning 28 of a yarn of another supply bobbin (reserve supply bobbin 29) which is held in a further supply bobbin receptacle 30 complete unwinding of the first feed spool 20, the reserve supply spool 29 is automatically unwound.
  • the manufacturing process must therefore not be interrupted when pulling off overhead.
  • it is particularly suitable to remove from the outside over the top, since in this case particularly high speeds can be achieved during unwinding of the yarn.
  • a "balloon" 31 forms, whereby the thread tension varies greatly in the Abspulregion.
  • the yarn tension in the illustrated yarn processing machine is regulated by means of the yarn tension control module 25, between the supply coil receptacle 24 and the air covering nozzle 5, and kept constant within a yarn tension range.
  • the thread tension control module 25 is arranged in the example shown between two thread guide devices 22,32, wherein one is arranged directly in front of the air-Covering nozzle 5.
  • the elastic yarn is brought together in this thread guiding device 32 with the false-twist-textured wrapping thread, for example, and then fed to the air-covering nozzle 5 with a regulated thread tension.
  • the thread guiding device 22 in front of the thread tension regulation module 25 is arranged in a central position in front of the actively driven delivery mechanism 7. This thread guide device 22 causes the elastic yarn in the actively driven delivery mechanism 7, regardless of which supply bobbin 20,29 is currently being used, always executed from the same position. This thread guide device 22 is "in focus" of the two feed bobbins 20,29.
  • a controlled yarn path 40 in a yarn processing machine is shown between a supply spool receptacle 41 and a multifilament yarn production unit, which is embodied as a false twist texturing unit 42.
  • the false twist texturing unit 42 has a heater 43, a cooler 44 and a swirl unit 45.
  • a supply spool 46 which is arranged in the supply spool receptacle 41, the yarn is fed via a delivery mechanism 48 of the false twist texturing unit 42.
  • the delivery mechanism 48 has a main roller 49 and a separation roller 50 around which the yarn is wound. As a result of the unwinding process, the yarn forms a "balloon" 31.
  • a yarn tension control module 53 is arranged in the yarn path between the balloon 31 and the delivery mechanism 48.
  • the yarn tension control module 53 comprises a yarn tension sensor 54 which measures the yarn tension, a yarn brake 55 and a controllable delivery mechanism 56.
  • a controlled variable is derived from the yarn tension over which the yarn tension is kept constant within a predetermined range.
  • This control variable may include, for example, a difference between measured thread tension and a desired thread tension.
  • the yarn brake 55 and / or the controllable delivery mechanism 56 are controlled in accordance with the controlled variable. If, for example, the measured thread tension is too great, the speed of the yarn is braked by means of the thread brake 55.
  • the yarn tension increasing linearly with increasing process speed in the prior art can be kept at a constant value, independently of the process speed.
  • the thread tension can be adjusted according to the needs of the downstream process of the multifilament yarn.
  • the yarn tension is measured with the yarn tension sensor 54 and in a closed loop control the speed of rotation of the controllable delivery 56 and / or the braking force of the yarn brake 55 according to the measured yarn tension.
  • the yarn tension is automatically adjusted by the yarn tension control module 53 via the control loop so that it corresponds to a desired value during the entire production process, ie is kept constant within a predetermined yarn tension range.
  • the yarn tension control module 53 therefore regulates the yarn tension with which e.g. the POY yarn of a multifilament yarn making unit, e.g. a false-twist texturing unit 42 is supplied to a predetermined value independent of an increase in the process speed, thereby eliminating one of factors limiting an increase in the process speed in false-twist texturing.
  • the yarn tension control module 53 therefore regulates the yarn tension with which e.g. the POY yarn of a multifilament yarn making unit, e.g. a false-twist texturing unit 42 is supplied to a predetermined value independent of an increase in the process speed, thereby eliminating one of factors limiting an increase in the process speed in false-twist texturing.
  • Proposed is a yarn quality assurance method and a yarn processing machine, arranged for carrying out the method according to the invention, with at least one feed bobbin receiving 24,30, adapted for receiving at least one feed bobbin 20,29, of which yarns are unwindable, and a Multifilamentgarnher einsaku 5, in which the yarns can be fed from the feed bobbins 20,29 threadlines, each with a thread tension.
  • a thread tension regulation module 25 with a thread tension sensor is arranged in at least one controlled threadline 1, between the associated supply package receptacle 24 and the multifilament yarn production unit 5, wherein the thread tension regulation module 25 is arranged to derive a control variable from a thread tension measured by the thread tension sensor and to adjust the thread tension in a predetermined one Keep the thread tension range constant.
  • the invention is not limited to the embodiments given above. Rather, a number of variants are conceivable, which make use of the features of the invention even with fundamentally different type of execution.
EP04020215A 2004-08-26 2004-08-26 Procédé permettant d'assurer la qualité d'un fil textile et machine de traitement de fil Not-in-force EP1630268B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE502004002633T DE502004002633D1 (de) 2004-08-26 2004-08-26 Garnqualitätssicherungsverfahren und Garnbearbeitungsmaschine
EP04020215A EP1630268B1 (fr) 2004-08-26 2004-08-26 Procédé permettant d'assurer la qualité d'un fil textile et machine de traitement de fil
TW094128630A TWI294927B (en) 2004-08-26 2005-08-22 Yarn quality assurance method and yarn processing machine
US11/209,965 US7137238B2 (en) 2004-08-26 2005-08-23 Yarn quality assurance method and yarn processing machine
KR1020050077919A KR100698660B1 (ko) 2004-08-26 2005-08-24 실품질 확보방법 및 실가공장치
JP2005246201A JP2006070424A (ja) 2004-08-26 2005-08-26 糸品質保証方法及び糸加工機
CN200510096702A CN100587140C (zh) 2004-08-26 2005-08-26 纱线质量确保方法和纱线处理设备

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04020215A EP1630268B1 (fr) 2004-08-26 2004-08-26 Procédé permettant d'assurer la qualité d'un fil textile et machine de traitement de fil

Publications (2)

Publication Number Publication Date
EP1630268A1 true EP1630268A1 (fr) 2006-03-01
EP1630268B1 EP1630268B1 (fr) 2007-01-10

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EP04020215A Not-in-force EP1630268B1 (fr) 2004-08-26 2004-08-26 Procédé permettant d'assurer la qualité d'un fil textile et machine de traitement de fil

Country Status (7)

Country Link
US (1) US7137238B2 (fr)
EP (1) EP1630268B1 (fr)
JP (1) JP2006070424A (fr)
KR (1) KR100698660B1 (fr)
CN (1) CN100587140C (fr)
DE (1) DE502004002633D1 (fr)
TW (1) TWI294927B (fr)

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TW200523410A (en) * 2003-12-02 2005-07-16 Giudici S P A Method and device for the production of a covered elastic yarn and for automatic replacement of feed spools
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US8308362B2 (en) * 2009-10-27 2012-11-13 Dental Imaging Consultants, LLC Quality assurance phantom for digital dental imaging and related method
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US9951445B2 (en) 2012-08-23 2018-04-24 Columbia Insurance Company Systems and methods for improving and controlling yarn texture
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BR112015025416A2 (pt) * 2013-04-03 2017-07-18 Invista Tech Sarl método para o desenrolamento de um fio elástico de uma embalagem
JP6533436B2 (ja) * 2014-09-04 2019-06-19 Ｔｍｔマシナリー株式会社 仮撚加工機
JP6535551B2 (ja) * 2014-09-04 2019-06-26 Ｔｍｔマシナリー株式会社 仮撚加工機
CN104562353B (zh) * 2014-12-20 2017-04-12 浙江纪元丝绸服装有限公司 一种加弹空包一体机
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KR100698660B1 (ko) 2007-03-23
US20060042220A1 (en) 2006-03-02
TWI294927B (en) 2008-03-21
CN100587140C (zh) 2010-02-03
KR20060050619A (ko) 2006-05-19
US7137238B2 (en) 2006-11-21
TW200624613A (en) 2006-07-16
JP2006070424A (ja) 2006-03-16
CN1743522A (zh) 2006-03-08
DE502004002633D1 (de) 2007-02-22
EP1630268B1 (fr) 2007-01-10

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