EP0010229B1 - Procédé et dispositif pour la texturation d'un fil à multifilaments - Google Patents

Procédé et dispositif pour la texturation d'un fil à multifilaments Download PDF

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Publication number
EP0010229B1
EP0010229B1 EP79103790A EP79103790A EP0010229B1 EP 0010229 B1 EP0010229 B1 EP 0010229B1 EP 79103790 A EP79103790 A EP 79103790A EP 79103790 A EP79103790 A EP 79103790A EP 0010229 B1 EP0010229 B1 EP 0010229B1
Authority
EP
European Patent Office
Prior art keywords
fluid medium
vortex
angle
filament bundle
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.)
Expired
Application number
EP79103790A
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German (de)
English (en)
Other versions
EP0010229A1 (fr
Inventor
Hans Dr. Knopp
Dieter Dr. Herion
Gerhard Conzelmann
Heinz Dr. Gehrig
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.)
BASF Farben und Fasern AG
Original Assignee
BASF Farben und Fasern AG
BASF Lacke und Farben 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 BASF Farben und Fasern AG, BASF Lacke und Farben AG filed Critical BASF Farben und Fasern AG
Priority to AT79103790T priority Critical patent/ATE2016T1/de
Publication of EP0010229A1 publication Critical patent/EP0010229A1/fr
Application granted granted Critical
Publication of EP0010229B1 publication Critical patent/EP0010229B1/fr
Expired legal-status Critical Current

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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
    • D02G1/04—Devices for 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
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
    • D02G1/161—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam yarn crimping air jets

Definitions

  • the present invention relates to a method for texturing bundles of threads and a device suitable therefor.
  • a method for texturing bundles of threads made of synthetic high-molecular substances at high texturing speeds in which the bundle of threads is passed through an inlet nozzle, meets a hot, gaseous medium which is in a swirling motion and is heated by this medium in a subsequent tubular chamber is and then fed to the crimp an expansion stage in which the hot, swirling flowing medium is given a swirl angle of 10 to 70 °, preferably 20 to 50 °, by guides in a swirl device, the swirl angle being the angle between the tangent to a helix, which results from twisting a previously straight surface line of a cylinder (or cone), and which defines a tangent-crossing parallel to the central axis of the system.
  • the invention also relates to a device for texturing bundles of threads made of synthetic high-molecular substances consisting of an inlet nozzle for the bundle of threads, one or more feeds for a hot flowing medium to the bundle of threads, the feeds being designed in such a way that they give the flowing medium a twist , a subsequent tubular chamber, in which the bundle of threads is heated by the hot gaseous medium, and an expansion stage, in which one or more swirlers are arranged in the feeds for the hot flowing medium, which have guides designed such that the hot flowing medium receives a swirl angle of 10 to 70 °, in particular a swirl angle of 20 to 50 °, the swirl angle being defined as above.
  • a device as it is considered suitable is shown schematically in FIG. 1, FIGS. 2 to 3 show details.
  • the device consists of an inlet nozzle 1 (sometimes also called a thread insertion tube), a feed 2 for the hot flowing medium 9 with a swirl sensor 3, a tubular chamber 4 (sometimes also called a thread guide channel or thread guide tube) and an expansion stage 5, in FIG. 1 as Slotted nozzle shown.
  • An embodiment of the swirl generator 3 is shown in FIG.
  • the hot flowing medium is formed through the channels 6- here as grooves --- which are arranged at an angle of 10 to 70 °, in particular 20 to 50 °, shown here by 45 °, to the direction of movement of the thread bundle.
  • the channels 6 in the swirl sensor 3 can have, for example, square or rectangular cross sections; these embodiments can be produced particularly easily if they are milled as grooves in the swirl body, which also serves as a centering body, the grooves then forming channels with the outer tube 7 of the nozzle.
  • the swirling at the desired angle can, however, also take place through channels 11 with a round or oval cross section, as e.g. are shown schematically in FIG. But you can also attach simple baffles, straight or curved.
  • the swirl sensors are to be designed according to the invention so that the hot flowing medium has a swirl angle of 10 to 70 °, in particular 20 to 50 °, practically at such an angle with respect to the imaginary axis of the inlet nozzle or the tubular chamber flows because these are normally arranged coaxially and the flowing medium flows around this chamber.
  • the cross sections of the channels 6, 11 in Swirl sensors 3 are variable within wide limits. However, it is advantageous if they are arranged symmetrically around the tubular chamber 4 and the free area is 1/4 to 3/4 of the annular area between the outer tube 7 of the nozzle and the tubular chamber 4. This circular ring area represents the free cross-sectional area around the yarn guide tube.
  • the number of channels in the swirl device is expediently 4 to 12 pieces, preferably 6 to 10 pieces. Even if the number is not essential to the invention, there is an advantage with a number of 6 to 10 channels. With fewer channels, their effect wears off; with significantly more channels of correspondingly smaller dimensions, the prefabricated. more expensive.
  • All common metals or alloys of sufficient temperature and corrosion resistance can be used as the production material for the nozzle and the swirl generator 3. Have special. Proven stainless steels. Of course, other metals can also be used insofar as they meet the thermal-corrosive requirements.
  • the channels determining the swirl direction form an angle with respect to the longitudinal axis, the channels being able to lie on the jacket of a cylinder intended around the longitudinal axis of the tubular chamber or on a cone jacket, so that the channels incline towards this longitudinal axis or also from it lean away.
  • the hot flowing media can meet on a smaller or a larger circle than that which corresponds to the average radius of the annulus between the outer tube 7 and the radius of the tubular chamber 4.
  • the swirl sensor 3 can e.g. at a distance which corresponds to the inner diameter of the outer tube 7, from the junction of the flowing medium and the running bundle of threads 8, but it can also, if less effectively, be at a greater distance, e.g.
  • the dimension of the texturing nozzles used are not changed by the device according to the invention.
  • devices known from DE-B-20 06 022 or DE-B-23 31 045 with the dimensions specified there are quite suitable.
  • the ratio of the inside width of the inlet nozzle 1 (the thread introduction tube) to the inside width of the tubular chamber (the thread guide tube) 4 is expediently 1: 1.0 to 1: 4, advantageously 1: 1.4 to 1: 2.2.
  • the diameter ratio and the dimensions themselves depend on the thickness of the thread bundles to be crimped. In general, it is expedient not to select the clear widths larger than necessary for the yarn transport in order to keep the consumption of the flowing medium low.
  • Inlet nozzle 1 and tubular chamber 4 are primarily arranged coaxially at a distance of 0.1 to 3.0 times, preferably 0.8 to 1.4 times the outer diameter of the thread guide tube 4, in the specific case approximately at a distance from 0.3 to 1 mm, preferably from 0.4 to 0.5 mm.
  • the tubular chamber 4 is followed by an expansion zone which, when configured as a slot nozzle, can have the same internal width as the tubular chamber. But it can also change suddenly or gradually to a larger diameter. 4 to 18 slots with a slot width of 0.3 to 1.0 mm, in particular 0.4 to 0.5 mm, have proven themselves in the slot nozzle.
  • the swirl sensor 3 causes the flowing medium to swirl which, due to the shape of the swirl sensor, leads to a swirl angle of between 10 and 70 ° on the thread guide tube or on the thread bundle. In the drawn device, it is approximately 45 °.
  • the range from 20 to 50 ° has proven to be particularly advantageous because the properties of the crimped yarn in terms of crimp value, tensile strength and elongation at break are in a particularly favorable range.
  • bundles of threads are understood to mean endless structures made of individual threads, the individual threads also being ribbons, flat threads or splicing fibers made of foils or film strips and the individual threads also being able to have round or profiled, for example trilobal, cross sections.
  • the titer of the individual threads can be, for example, 1 to 30 dtex, they are preferably 10 to 25 dtex.
  • the number of individual threads in the thread bundles or yarns can be between 2 and a few thousand.
  • the threads in the thread bundles can be partially stretched or total stretched out. It is also possible to use bundles of threads which have a certain pre-twist, for example up to 30 turns / m, in particular up to 25 turns / m, as a result of which they have better cohesion.
  • the thread bundles of linear or practically linear organic high molecular weight for the production of the thread are particularly customary linear synthetic high molecular weight polyamides with carbonamide groups recurring in the main chain, linear synthetic high molecular weight polyesters with recurring ester groups in the main chain, thread-forming olefin polymers, and cellulose derivatives such as cellulose derivatives.
  • Suitable high-molecular compounds are in particular nylon-6, nylon-6.6, polyethylene terephthalate, linear polyethylene or isotactic polypropylene.
  • the gases used for this purpose are used as the flowing gaseous medium, for example nitrogen, carbon dioxide, water vapor and, in particular, from economical ones. Reasons, air.
  • the required temperatures of the flowing medium can be within wide ranges. A temperature range of 80 to 550 ° C has generally been found to be expedient, the most favorable conditions for the respective material from the melting or plasticizing temperatures of these materials, the speed of the flowing medium at the respective temperature and the pressure used, the time during which the flowing medium acts on the thread bundles, the temperature at which the thread bundles are fed and also on the thickness of the individual threads, ie depend on the titer.
  • the plasticizing range is, for example, for linear polyethylene at 80 to 90 ° C, for polypropylene at 80 to 120 ° C, for nylon-6 at 165 to 190 ° C, for nylon-6.6 at 120 to 240 ° C and for polyethylene terephthalate at 190 to 230 ° C.
  • the temperatures for the flowing medium are generally higher than the plasticizing temperatures; for nylon-6 e.g.
  • a temperature range of 175 to 380 ° C has been proven.
  • the lower limit of the preferred range is approximately 10 ° above the lower limit of the plasticization range and, depending on the residence time and titer, extends up to approximately 200 ° above the lower limit of the respective plasticization range.
  • the flowing medium is generally applied at a pressure of 2 to 15 bar, preferably 5 to 9 bar.
  • the texturing speed is 1200 to 3000 m / min. Speeds of 1800 to 2500 m / min are preferably used. High speeds result in shorter dwell times, which allow higher temperatures of the flowing medium.
  • the swirl sensor which surrounds the tubular chamber (the thread guide tube), represents the narrowest point of the free cross section of the medium feed. It is advisable to dimension this free cross section at the narrowest point in such a way that throughputs of 0.35 to 2.0 m 3 (normal conditions) per hour and mm. Under these conditions, there are particularly high withdrawal tensions at the supply organs, for example the stretch godets.
  • the amount of hot flowing medium to be used also depends on the yarn titer, the desired crimp intensity and the chemical nature of the thread bundle.
  • An undrawn polyamide 6 roving with the titer 4200 f 67 dtex is drawn off from a winding body and fed to the drawing device of a drawing texturing machine, with a drawing ratio of 1: 3.45 being set.
  • the temperature of the inlet godet into the stretching field is 100 ° C and the temperature of the outlet godet of the stretching field is 150 ° C.
  • the preheated and drawn thread is fed at a speed of 2000 m / min to a crimping device shown in FIG. Air of temperature 300 ° C. is supplied through the pipe socket 2 at a pressure of 5.3 bar.
  • the air volume of 6.5 Nm 3 / h is now guided through the 8 air channels arranged in a circle, which are inclined counter-clockwise by 40 ° with respect to the axis of the texturing device.
  • the free cross section of the annular space is 43 mm 2 , the free area of the 8 air channels 14.4 mm 2 ,
  • the yarn inlet nozzle 1 has a clear width of 1.1 mm.
  • the thread guide channel 4 has a clear width of 2.4 mm, an outer diameter of 3.0 mm and a total length of 127 mm. This results in a ratio of the inside width of inlet nozzle 1 to the inside width of thread guide channel 4 of 1: 2.2.
  • the cylindrical slot nozzle At the end of the thread guide channel 4 is the cylindrical slot nozzle, as in DE-B- 20 06 022 described, postponed.
  • the distance between the end of the thread guide channel 4 and the beginning of the slots in the slot nozzle 5 is 0.83 times the outer diameter of the thread guide channel.
  • the expansion zone consists of a slot nozzle 5 with 12 slots and a slot width of 0.5 mm.
  • the tension of the thread to be textured is in front of the thread insertion channel. 65 cN.
  • the yarn has a crimp of 12.6% (KWH).
  • An undrawn polyamide 6 roving with the titer 4200 f 67 dtex is drawn off from a winding body and fed to the drawing device of a drawing texturing machine, with a drawing ratio of 1: 3.45 being set.
  • the temperature of the inlet godet into the stretching field is 100 ° C and the temperature of the outlet godet of the stretching field is 150 ° C.
  • the preheated and drawn thread is fed to a crimping device shown in FIG. 1 at a speed of 2000 m / min. Air with a temperature of 350 ° C. and a pressure of 5.3 bar is fed through the pipe socket 2.
  • the air volume of 6.5 Nm 3 / h is now passed through the 8 air channels arranged in a circle, which are inclined counterclockwise by 15 ° with respect to the axis of the texturing device and leave 1/3 of the free cross-sectional area around the tubular chamber 4.
  • the yarn inlet nozzle 1 has a clear width of 1.1 mm.
  • the thread guide channel 4 has a clear width of 2.4 mm and an outer diameter of 3.0 and a total length of 127 mm. This results in a ratio of the inside width of inlet nozzle 1 to the inside width of thread guide channel 4 of 1: 2.2. Between the inlet nozzle 1 and the thread guide channel 4 there is an annular gap 10 of 0.4 mm due to the set air flow.
  • the cylindrical slot nozzle As described in DE-B-20 06 022, is pushed on.
  • the distance between the end of the thread guide channel 4 and the beginning of the slots in the slot nozzle 5 is 0.83 times the outer diameter of the thread guide channel.
  • the expansion zone consists of a slot nozzle 5 with 12 slots and a slot width of 0.5 mm.
  • the tension of the thread to be textured is 45 cN in front of the thread insertion channel.
  • the yarn has a crimp of 11.4% (KWH).
  • an undrawn polyamide 6 roving with the titer 4200 f 67 dtex is drawn off from a winding body and fed to the drawing device of a drawing texturing machine, with a drawing ratio of 1: 3.45 being set.
  • the temperature of the inlet godet in the stretching field is 100 ° C and the temperature of the outlet godet in the stretching field is 150 ° C.
  • the preheated and drawn yarn is fed at a speed of 2000 m / min to a crimping device which corresponds to that used in Examples 1 and 2, but does not contain a twister 3.
  • Air at a temperature of 390 ° C. is supplied through the pipe socket at a pressure of 5.3 bar.
  • the air volume of 4.7 Nm / h is led directly through the air gap between the yarn inlet nozzle 1 and the thread guide channel 4.
  • the air flow before entering the air gap runs parallel to the thread guide channel, i.e. without specific swirl.
  • the yarn inlet nozzle 1 has a clear width of 1.1 mm.
  • the thread guide channel 4 has a clear width of 2.4 mm, an outer diameter of 3.0 mm and a total length of 127 mm. This results in a ratio of the inside width of inlet nozzle 1 to the inside width of thread guide channel 4 of 1: 2.2.
  • the cylindrical slot nozzle As described in DE-B-20 06 022, is pushed on.
  • the distance between the end of the thread guide channel 4 and the beginning of the slots in the slot nozzle 5 is 0.83 times the outer diameter of the thread guide channel.
  • the expansion zone consists of a slot nozzle 5 with 12 slots and a slot width of 0.5 mm.
  • the tension of the thread to be textured is 30 cN before the thread insertion channel.
  • the yarn has a crimp of 10.5% (KWH).
  • the yarn has a crimp of 8.2% (KWH).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Inorganic Fibers (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Claims (4)

1. Procédé de texturisation de faisceaux de fils en matière synthétique de poids molé- culairè élevé, à vitesse de texturisation élevée, selon lequel on fait passer le faisceau de fils (8) par une buse d'entrée (1), on lui fait rencontrer un fluide (9) chaud, gazeux, se trouvant en mouvement giratoire, qui, dans une chambre (4) suivante, tubulaire, chauffe le faisceau de fils quiest, ensuite, amené, pour frisage, à un étage d'expansion (5), caractérisé par le fait que, dans un générateur de torsion (3), on communique au fluide (9) chaud, animé d'un mouvement giratoire, un angle de torsion de 10 à 70°, de préférence de 20 à 50°, l'angle de torsion étant défini comme l'angle entre la tangente à une ligne hélicoïdale et une parallèle à l'axe du système et coupant la tangente.
2. Procédé selon la revendication 1, caractérisé par le fait qu'avec une vitesse de texturisation de 1500 à 3000 m/mn, de préférence de 1800 à 2500 m/mn, on amène le fluide en mouvement (9) à la section libre de la zone la plus resserrée du générateur de torsion (3) avec une pression de 2 à 15 bars et un débit de 0,35 à 2,0 m3 (conditions normales)/h et mm2, de préférence de 0,4 à 1,0 m3 (conditions normales/h et mm2.
3. Dispositif de texturisation de faisceaux de fils en matières synthétiques de poids moléculaires élevés, constitué par une buse d'entrée (1) pour le faisceau de fils (8), un ou plusieurs conduits (2) d'amenée au faisceau de fils d'un fluide (9) chaud en mouvement, ces conduits d'amenée (2) étant agencés de façon à donner au fluide chaud en mouvement giratoire, une chambre (4) tubulaire, suivante, dans laquelle le faisceau de fils est chauffé par le fluide chaud en mouvement, et un étage d'expansion (5), caractérisé par le fait que, dans le conduit ou les conduits, d'amenée de fluide chaud en mouvement (9), sont disposés un ou plusieurs générateurs de torsion (3) qui comportent des guides agencés de telle sorte que le fluide chaud en mouvement (9) prend un angle de torsion de 10 à 70°, en particulier un angle de torsion de 20 à 50°, l'angle de torsion étant défini comme l'angle entre la tangente à une ligne hélicoïdale et une parallèle à l'axe du système et coupant la tangente.
4. Dispositif selon la revendication 3, caractérisé par le fait que le générateur de torsion (3) est disposé au voisinage immédiat de la zone de réunion du fluide chaud en mouvement (9) et du faisceau de fils (8).
EP79103790A 1978-10-12 1979-10-04 Procédé et dispositif pour la texturation d'un fil à multifilaments Expired EP0010229B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79103790T ATE2016T1 (de) 1978-10-12 1979-10-04 Verfahren und vorrichtung zum texturieren von fadenbuendeln.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782844391 DE2844391A1 (de) 1978-10-12 1978-10-12 Verfahren und vorrichtung zum texturieren von fadenbuendeln
DE2844391 1978-10-12

Publications (2)

Publication Number Publication Date
EP0010229A1 EP0010229A1 (fr) 1980-04-30
EP0010229B1 true EP0010229B1 (fr) 1982-12-15

Family

ID=6051961

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79103790A Expired EP0010229B1 (fr) 1978-10-12 1979-10-04 Procédé et dispositif pour la texturation d'un fil à multifilaments

Country Status (9)

Country Link
US (1) US4295253A (fr)
EP (1) EP0010229B1 (fr)
JP (1) JPS5557030A (fr)
AT (1) ATE2016T1 (fr)
CA (1) CA1118587A (fr)
DE (2) DE2844391A1 (fr)
MX (1) MX149944A (fr)
YU (2) YU42492B (fr)
ZA (1) ZA795421B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3418322A1 (de) * 1984-05-17 1985-11-21 W. Schlafhorst & Co, 4050 Mönchengladbach Luftspinnverfahren und luftspinnvorrichtung
IT1251323B (it) * 1991-09-18 1995-05-08 Filteco Spa Ugello e metodo di trattamento di filato

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA805867A (en) * 1969-02-11 Courtaulds Limited Crimped filamentary materials
GB1200669A (en) * 1966-12-29 1970-07-29 Mitsubishi Rayon Co High speed spinning method and apparatus for manufacturing jet bundle yarn
FR2015765A1 (fr) * 1968-08-16 1970-04-30 Basf Ag Dispositif pour l'obtention de fils volumineux
DE2006022C3 (de) * 1970-02-11 1981-10-15 Basf Ag, 6700 Ludwigshafen Vorrichtung zur Herstellung texturierter Fäden
FR2186029A5 (fr) * 1972-05-26 1974-01-04 Rhone Poulenc Textile
US3751775A (en) * 1972-06-07 1973-08-14 Allied Chem Apparatus and process for commingling multifilament yarn
US3958310A (en) * 1973-03-05 1976-05-25 Rhone-Poulenc-Textile Method for interlacing filaments of multifilament yarns
FR2220607B1 (fr) * 1973-03-05 1975-10-31 Rhone Poulenc Textile
US3828404A (en) * 1973-04-04 1974-08-13 Allied Chem Commingling jet for multifilament yarn
US3874044A (en) * 1974-03-08 1975-04-01 Allied Chem Apparatus and process for simultaneous crimping and commingling of yarns
US3908248A (en) * 1974-06-17 1975-09-30 Basf Ag Apparatus for texturizing filaments
DE2512457C2 (de) * 1975-03-21 1984-02-16 Basf Farben + Fasern Ag, 2000 Hamburg Verfahren zum Kräuseln von Fäden
JPS51130334A (en) * 1975-05-06 1976-11-12 Murata Machinery Ltd Apparatus for making spun yarns
DE2632384A1 (de) * 1976-07-19 1978-01-26 Basf Farben & Fasern Verfahren zum gleichzeitigen texturieren und kapillarverwirbeln von fadenbuendeln
IT1064326B (it) * 1975-12-24 1985-02-18 Basf Farben & Fasern Procedimento per la testurizzazione e intreccio a movimento vorticoso contemporanei dei capillari di fasci di fili
GB1592646A (en) * 1976-12-01 1981-07-08 Ici Ltd Yarn treatment

Also Published As

Publication number Publication date
YU42492B (en) 1988-10-31
CA1118587A (fr) 1982-02-23
US4295253A (en) 1981-10-20
ZA795421B (en) 1980-10-29
JPS5557030A (en) 1980-04-26
DE2844391A1 (de) 1980-04-30
ATE2016T1 (de) 1982-12-15
DE2964300D1 (en) 1983-01-20
EP0010229A1 (fr) 1980-04-30
MX149944A (es) 1984-02-13
YU264682A (en) 1986-10-31
YU248579A (en) 1985-10-31

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