EP0010229A1 - 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
EP0010229A1
EP0010229A1 EP79103790A EP79103790A EP0010229A1 EP 0010229 A1 EP0010229 A1 EP 0010229A1 EP 79103790 A EP79103790 A EP 79103790A EP 79103790 A EP79103790 A EP 79103790A EP 0010229 A1 EP0010229 A1 EP 0010229A1
Authority
EP
European Patent Office
Prior art keywords
flowing medium
hot
threads
swirl
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
EP79103790A
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German (de)
English (en)
Other versions
EP0010229B1 (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.
  • bundles of synthetic high molecular weight fibers can be curled and swirled by passing the bundles of threads through an inlet nozzle, then allowing them to meet with a hot flowing medium, heating them up to the plasticizing temperature through a tubular chamber and then into one Expansion zone for curling and possibly swirling conducts.
  • a suitable device is described in DE-AS 20 06 022, for example, the expansion zone being in the form of a tube with longitudinal slots.
  • the hot flowing medium is fed through a centering body for the tubular chamber in the nozzle (cf. DE-AS 20 00 622). It is also known that the hot flowing medium is given a swirl (DE-OS 26 32 384).
  • a process has now been found for texturing bundles of threads from synthetic high-molecular substances at high texturing speeds, in which the bundles of threads are passed through an inlet nozzle together with a hot gaseous medium which is in a swirling motion ment, are heated in a subsequent tubular chamber by this medium and then guided to the crimp in an expansion stage, in which the hot, swirling medium is guided by a swirl angle of 10 ° 70 °, preferably 20 to 50 °, by a guide in the swirl device ° there.
  • the twist angle is defined as the angle between the tangent to a helix that results when twisting a previously straight surface line of a cylinder (or cone) and a parallel to the axis that intersects the tangent.
  • 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 twist the flowing medium - ben, a subsequent tubular cone, in which the bundle of threads is heated by the hot gaseous medium, and an expansion stage, in which in the feed for the hot flowing medium or the swirlers are designed so that the hot flowing medium has a twist angle of 10 up to 70 °, especially in a twist angle of 20 to 50 °.
  • FIG. 1 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 for the hot flowing medium 2 with a swirl sensor 3, a tubular chamber 4 (sometimes also called a thread guide channel) and an expansion stage 5, in FIG. 1 as a slot nozzle shown.
  • An embodiment of the swirl sensor 3 is shown in FIG.
  • the hot medium flowing through the channels is 6 - here formed as grooves - those directed at an angle of 10 to 70 °, in particular from 20 to 50 °, in this case represented by 45 is 0, are disposed to the movement direction of the yarn 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 jacket 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 are shown schematically in FIG. 3, for example. But you can also attach simple baffles, straight or curved.
  • the swirl sensors are to be designed in such a way that the hot flowing medium has a swirl angle of 10 to 70 °, receives in particular from 20 to 50 °, practically flows at such an angle with respect to the imaginary axis of the inlet nozzle or the tubular chamber, since these are normally arranged coaxially and the flowing medium flows around this chamber.
  • the cross sections of the channels in the swirl sensor 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 of the nozzle 7 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 twister 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, production becomes more expensive.
  • 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 for 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 jacket and the radius of the tubular chamber 4.
  • the swirl sensor can be arranged in the immediate vicinity, for example at a distance which corresponds to the inner diameter of the tubular casing, from the point of union of the flowing medium and the running bundle of yarn, but it can also, if less effectively, be at a greater distance, for example the 3- up to 4 times the inner diameter of the jacket tube, be arranged from this union.
  • the dimension of the texturing nozzles used are not changed by the device according to the invention. For example, devices known from DE-AS 20 06 022 or from DE-AS 23 31 045 with the dimensions specified there are very suitable.
  • the ratio of the clear width of the inlet nozzle (the thread insertion tube) to the clear width of the tubular chamber (the thread guide tube) 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. Have proven themselves for the inlet nozzle, for example, with a diameter of 1,100 to 1,3 mm.
  • Inlet nozzle and tubular chamber 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 of 0 , 3 to 1 mm, preferably from 0.4 to 0.5 mm.
  • the tubular chamber is followed by an expansion zone which, when configured as a slot nozzle, has the same inside width as the tubular chamber. However, it can also suddenly or gradually change to a larger diameter.
  • the slot nozzle 4 to 18 slots have proven themselves with a slot width of 0.3 to 1.0 mm, in particular 0.4 to 0.5 mm.
  • other devices can also be used which have the elenent inlet nozzle, annular gap, tubular chamber and expansion zone.
  • the process conditions known for the respective nozzles also apply with regard to the relationship between the temperature of the heating medium and the type of thread bundle.
  • temperatures of the hot flowing medium which are generally 10 to 20 ° lower than those used without the specific swirling can be used.
  • the process can generally be described with reference to FIG. 1 as follows: the bundle of threads 8 is fed into the texturing nozzle via the inlet nozzle 1, the flowing medium 9 is fed into the gap 10 between the inlet nozzle 1 and the tubular chamber via the feed 2 and the swirl device 3 4 led.
  • the swirl sensor causes the flowing medium to swirl, which due to the shape of the swirl sensor leads to a swirl angle 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 foil strips, and furthermore the individual threads being round or profiled, for example trilopal cross sections can have.
  • the titer of the individual threads can be, for example, 1 to 30 dtx, 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 totally stretched. It is also possible to use bundles of thread 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 for economic 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 sound of the flowing medium at the respective temperature and the pressure used, the time during which the flowing medium acts on the thread bundle, the temperature at which the thread bundle is fed, and also of the Thickness of the individual threads, ie depend on the titer.
  • the plasticization ranges are, 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 have smaller dwell times times, these allow higher temperatures of the flowing medium.
  • the swirl sensor which surrounds the tubular chamber (the thread guide rotor), 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 2 . 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 bobbin 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 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 1 is 4.4 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 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.
  • the cylindrical slot nozzle As described in DE-AS 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 65 cN before the thread insertion channel.
  • the yarn has a crimp of 12.6% (KWH).
  • An undrawn folyamide 6 roving with the titer 4200 f 67 dtex is drawn off from a bobbin 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 ven 127 gives you a ratio of the inside width of the inlet nozzle 1 to the inside width of the thread guide channel - before 1: 2.2.
  • the cylindrical slot nozzle As described in DE-AS 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 a winding body and fed to the stretching device of a stretch texturing machine, with a stretch 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 thread 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 3 / 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, ie without any specific twist.
  • the Garmeinmaschinedüse 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 fader guide channel 4 of 1: 2.2.
  • the cylindrical slot nozzle as described in DE-AS 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 cH before the thread insertion channel.
  • the thread is before the 30 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)
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 true EP0010229A1 (fr) 1980-04-30
EP0010229B1 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)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH673193GA3 (fr) * 1984-05-17 1990-02-28
EP0533624A1 (fr) * 1991-09-18 1993-03-24 FILTECO S.p.A. Installation à buse et procédé de traitement de fils

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2006022B2 (de) * 1970-02-11 1975-11-27 Basf Ag, 6700 Ludwigshafen Vorrichtung zur Herstellung texturierter Fäden
DE2620118A1 (de) * 1975-05-06 1976-11-18 Murata Machinery Ltd Garnspinnmaschine
DE2632384A1 (de) * 1976-07-19 1978-01-26 Basf Farben & Fasern Verfahren zum gleichzeitigen texturieren und kapillarverwirbeln von fadenbuendeln

Family Cites Families (13)

* 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
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
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2006022B2 (de) * 1970-02-11 1975-11-27 Basf Ag, 6700 Ludwigshafen Vorrichtung zur Herstellung texturierter Fäden
DE2620118A1 (de) * 1975-05-06 1976-11-18 Murata Machinery Ltd Garnspinnmaschine
DE2632384A1 (de) * 1976-07-19 1978-01-26 Basf Farben & Fasern Verfahren zum gleichzeitigen texturieren und kapillarverwirbeln von fadenbuendeln

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH673193GA3 (fr) * 1984-05-17 1990-02-28
EP0533624A1 (fr) * 1991-09-18 1993-03-24 FILTECO S.p.A. Installation à buse et procédé de traitement de fils
US5433365A (en) * 1991-09-18 1995-07-18 Filteco S.P.A. Fluid nozzle device for yarn processing

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
MX149944A (es) 1984-02-13
EP0010229B1 (fr) 1982-12-15
YU264682A (en) 1986-10-31
YU248579A (en) 1985-10-31

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