EP0168582A2 - Procédé et dispositif pour le conditionnement de matériaux en fibres synthétiques - Google Patents

Procédé et dispositif pour le conditionnement de matériaux en fibres synthétiques Download PDF

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Publication number
EP0168582A2
EP0168582A2 EP85105890A EP85105890A EP0168582A2 EP 0168582 A2 EP0168582 A2 EP 0168582A2 EP 85105890 A EP85105890 A EP 85105890A EP 85105890 A EP85105890 A EP 85105890A EP 0168582 A2 EP0168582 A2 EP 0168582A2
Authority
EP
European Patent Office
Prior art keywords
steam
zone
conditioning
conditioning device
fiber
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
EP85105890A
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German (de)
English (en)
Other versions
EP0168582B1 (fr
EP0168582A3 (en
Inventor
Ulrich Dr. Reinehr
Rolf-Burkhard Dipl.-Ing. Hirsch
Wolfram Dr. Wagner
Erich Dipl.-Ing. Hilgeroth
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Bayer AG
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Bayer AG
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Publication date
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Publication of EP0168582A2 publication Critical patent/EP0168582A2/fr
Publication of EP0168582A3 publication Critical patent/EP0168582A3/de
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Publication of EP0168582B1 publication Critical patent/EP0168582B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C7/00—Heating or cooling textile fabrics

Definitions

  • the invention relates to a method and an apparatus for conditioning cables or nonwovens made of synthetic fibers with the aid of steam, in particular threads and fibers made of acrylonitrile polymers with at least 40% by weight of acrylonitrile units, optionally after previous crimping.
  • Devices for steaming continuously conveyed synthetic fiber material are preferably screen drum and screen belt dampers (for example in DE-OS 2 060 941 or GB-PS 1 208 792).
  • Steam pipes, tunnels and U-shaped steaming boots cf. eg international textile practice Dec. 1981, page 1410 or man-made fibers / textile industry Nov. 1981, page 821 or Feb. 1982, page 96.
  • Combinations of crimping devices with a subsequent fixing chamber (for example US Pat. No. 2,865,080) are also described in a wide variety of shapes and designs, in particular for texturing and fixing processes.
  • These steaming units are used for Drying and shrinking of fiber cables, as well as to stabilize crimp and spin dyeing of the fibers.
  • EP-OS 98 477 describes for the first time a continuously operating dry spinning process for acrylonitrile threads and fibers, in which the spinning cable of 100,000 dtex and more is prepared shortly before or immediately after leaving the spinning shafts, then stretched, crimped and then fixed without the cable comes into contact with an extraction liquid for the spinning solvent, such as water. The majority of the spinning solvent is already driven out in the spinning shafts in this process.
  • the solvent content of the threads is usually less than 10% by weight, based on the fiber solids content, but more than 1% by weight when leaving the spinning shafts.
  • the known conditioning devices are not suitable for this method. Either the amount of steam required was too high or raw clay damage or matting of the fiber cables occurred.
  • the object of the present invention was to provide a suitable conditioning device for the continuous dry spinning process, it being possible to integrate an upstream crimping process.
  • the conditioning device has to perform the tasks of stabilizing the crimp, reducing the shrinkage built up by the stretching process and removing the remaining portions of spinning solvent.
  • the method and device should be suitable for the conditioning of cables and nonwovens.
  • the object is achieved in that in a vapor-tight conditioning device the synthetic fiber material is exposed to at least two stages of superheated steam from 105 to 150 ° C. on a circulating wire belt and has a dwell time of over 3 minutes in the conditioning device.
  • the invention therefore relates to a method for conditioning synthetic fiber material, in particular synthetic fiber cables or nonwovens, characterized in that the synthetic fiber material is exposed in a vapor-tight conditioning device on a circulating screen belt to at least two stages of superheated steam from 105 to 150 ° C. and a dwell time in the conditioning device of over 3 minutes.
  • vapor-tight is understood to mean that the uncontrolled vapor losses at the inputs and outputs of the synthetic fiber material together are less than 1%. If a crimping device is integrated in the conditioning device in an absolutely vapor-tight manner, the entry into the crimp is considered to be the input for the synthetic fiber material. Stuffer box and blow curls are preferred.
  • the superheated steam is expediently conducted in countercurrent to the fiber material and the fibers in the individual treatment stages with the aid of fans material fed multiple times.
  • the superheated steam is preferably generated in the conditioning device into which saturated steam enters, which is overheated with the aid of heat exchangers.
  • the temperature of the superheated steam is preferably 120 to 140 ° C, the residence time is preferably 5 to 15 minutes.
  • the process works efficiently with a covering density of up to 15 kg / m 2 , preferably up to 10 kg / m 2 .
  • the document density can easily be calculated from the documentable surface of the sieve belt, the dwell time and the throughput (kg / h).
  • the process is particularly suitable for the conditioning of spun cables made of acrylic fibers with at least 40% by weight of acrylonitrile units, preferably at least 85% by weight of acrylonitrile units, which are obtained by a continuous dry spinning process in the course of which they are not mixed with an extraction liquid for the spinning solvent Have made contact.
  • Another object of the invention is a conditioning device in which the method according to the invention can be carried out.
  • the conditioning device is shown in FIGS. 1 to 3.
  • the device according to the invention consists of a sieve belt damper, which is closed in a vapor-tight manner and is divided into several zones A to D, the individual zones being separated from one another, zones B and C may occur several times, and zone A an inlet device and a suction device for solvent-laden steam , Zone B has a fan, a heat exchanger and a suction for solution-laden steam, Zone C has a fan, a heat exchanger and a steam supply and Zone D has a suction for solvent-laden steam.
  • zone E there is a zone E in which the synthetic fiber material is cooled before it is passed on for further use, storage, packaging or cutting.
  • a stuffer box crimp (1) is integrated in the conditioning device (2).
  • the crimped fiber cable (5) is paneled onto a conveyor belt (6), for example a perforated or sieve belt, via the closed channel (3) and a traversing device (4).
  • a conveyor belt (6) for example a perforated or sieve belt
  • live steam is introduced at (10) into the steaming zone (C) via a heat exchanger (11) so that the steam temperature is at least 105 ° C.
  • the process steam flows through the folded fiber cable and is then sucked off by means of fans (8), reheated via the heat exchanger (10) and sent again through the fiber cable.
  • a partial flow of the steam from the steam zone (C) reaches the steam zone (B) in the opposite direction to the direction of the fiber cable.
  • the steam is again passed through fans (8) via heat exchangers (12), led through the fiber cable and a partial stream loaded with residual spinning solvent is removed via the suction (13).
  • Belt seals in the form of sliding sealing flaps (7) at the level of the folded fiber cable and sealing strips (14) of the surrounding sieve belt (6) largely prevent steam from escaping.
  • the amounts of steam that nevertheless escape through the sealing flaps (7) and sealing strips (14) are in the inlet zone (A) and the outlet zone (D) via suction devices (13), which are provided with adjustable throttle valves, not shown in the figure, led away.
  • the folded fiber cable is then sent through a cooling zone (E). Air from room temperature is blown through the cooling zone by means of a fan (15).
  • the fiber cable is then fed to a cutting device and further processed into staple fibers or paneled in cardboard boxes as an endless belt.
  • FIGS. 2 and 3 show, on the basis of cross sections through the steaming zones B and C, the path of the process steam through the conditioning device.
  • the live steam which enters the steaming zone (C) via the entry point (10), flows through the heat exchanger (11) and experiences overheating.
  • the steam then flows through the paneled fiber cable (5) and is fed back to the heat exchanger for renewed circulation via an intake duct (16) by means of fans (8) via a pressure duct (17).
  • a partial stream of the steam passes from the steaming zone (C) into the circulated amount of steam in the steaming zone (B), where the steam is circulated as in the steaming zone (C), reheated via the heat exchanger (12) and removed as a partial stream via the suction (13).
  • a crimping process can be combined with the conditioning.
  • a stuffer box (1) is connected directly to the conditioning device via a closed channel (3) according to FIG. 1.
  • a blow nozzle crimp which is analogously coupled to the conditioning device, especially at high production speeds, has proven to be very cheap.
  • the 30% by weight spinning solution of an acrylonitrile copolymer composed of 93.6% acrylonitrile, 5.7% methyl acrylate and 0.7% sodium methallylsulfonate with a K value of 81 (Fikentscher, Cellulosechemie 13, (1932), page 58) in dimethylformamide was obtained from Dry spun 1264-hole nozzles with a 0.2 mm nozzle hole diameter at a take-off speed of 60 m / min on a 20-shaft spinning system.
  • the dwell time of the spun threads in the spinning shafts was 4 seconds.
  • the shaft temperature was 210 ° C and the air temperature was 380 ° C.
  • the throughput of air was 40 m 3 / h for each shaft, which was blown in at the head of the shaft in the longitudinal directions to the threads.
  • the preparation was dosed via gear pumps.
  • the warm cable was then sent over a pair of rollers heated inductively to 150 ° C, with a contact time of approx. 2 seconds being achieved by looping several times over a feed roller.
  • the cable took a tape temperature of 112 ° C, measured the radiation thermometer KT 15 (manufacturer: Heimann GmbH, Wiesbaden, Germany).
  • the cable was stretched by 450%, with a stretch septet with coolable rollers serving as the second clamping point.
  • the strip temperature after the stretching process was 61 ° C.
  • the cable was mechanically crimped in a stuffer box (1), which was connected to the conditioning device (2) by a closed channel (3), and paneled onto a continuous endless sieve belt (6) via a traversing device (4).
  • the crimping speed was 270 m / min.
  • the folded, crimped fiber cable After passing through the entrance zone (A), the folded, crimped fiber cable entered the damping zones (B) and (C), each 1 m long and 0.4 m wide. Both steam zones were separated from each other by baffles and equipped with circulation fans (8). At the same time, live steam, the quantity of which was regulated by a valve, came into the steaming zone (C) in counterflow to the fiber cable direction via the steam entry point (10). The amount of steam fed in was 48 kg / h with a calculated fiber cable throughput of 96.1 kg / h, so that a specific steam consumption of 0.5 kg steam per kg fiber cable was established.
  • the acrylic fibers produced in this way in a continuous process are shrink-free and have a single fiber final titer of 3.3 dtex.
  • the fiber strength is 2.9 cN / dtex and the elongation is 39%.
  • the residual solvent content in the staple fiber is 0.62% by weight.
  • Yarns made from the fibers on a high-performance card at 120 m / min with a yarn count of 278 dtex have a yarn strength of 15.3 RKM, an elongation of 18.9% and a yarn boiling shrinkage of 2.4%.
  • the following table shows 267,000 dtex for spinning cables with the same total titer. which had different residual solvent contents of dimethylformamide and passed through the conditioning device under different steaming conditions, tape presentation and running mode in the secondary spinning mill were assessed.
  • the different residual solvent contents in the fiber cable were achieved by varying the spinning air temperature and spinning air quantities under otherwise the same test conditions as in Example 1.
  • the damper temperature, the amount of steam passed through per kg of fiber cable and the dwell time in the conditioning device were varied.
  • part of the fiber cable according to Example 1 is fed to a blow nozzle instead of a stuffer box, which is also connected to the conditioning device by a closed channel (2).
  • the blow curl which is operated with superheated steam at 140.degree. C., is constructed in front of the conditioning device in such a way that the blowing nozzle outlet opening and the subsequent channel lead into the conditioning device without kinking. All other conditions correspond to the details of Example 1.
  • the acrylic fibers produced in this way in a continuous process have a single fiber final titer of 3.3 dtex.
  • the fiber strength is 2.8 cN / dtex and the elongation is 33%.
  • the residual solvent content in the staple fiber is 0.58% by weight.
  • the fibers were again shrink-free.
  • Yarns made from the fibers on a high-performance card at 140 m / min with a yarn count of 283 dtex have a yarn strength of 16.1 RKm, an elongation of 18.4% and a yarn boiling shrinkage of 2.4%.
  • a part of the fiber cable from Example 1 was crimped in a stuffer box with a rotor blade into staple fibers for 60 mm staple length and applied to the conditioning device via a feed roller.
  • the other conditions correspond again to the information from example 1.
  • the fiber fleece is blown via a funnel-shaped suction device using a fan and fed to a packing press.
  • Single fiber final titer 3.3 dtex; Fiber strength 2.5 cN / dtex; Elongation 34%.
  • the residual solvent content in the staple fiber is 0.43% by weight. Again, no fiber shrinkage was found.
  • Yarn values yarn tenacity 15.8 Rkm with a yarn count of 290 dtex; Elongation 18.1%; Yarn shrinkage 2.7%; Carding speed 120 m / min.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Nonwoven Fabrics (AREA)
EP85105890A 1984-05-22 1985-05-14 Procédé et dispositif pour le conditionnement de matériaux en fibres synthétiques Expired - Lifetime EP0168582B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3418942 1984-05-22
DE19843418942 DE3418942A1 (de) 1984-05-22 1984-05-22 Verfahren und vorrichtung zum konditionieren von synthesefasermaterial

Publications (3)

Publication Number Publication Date
EP0168582A2 true EP0168582A2 (fr) 1986-01-22
EP0168582A3 EP0168582A3 (en) 1989-02-08
EP0168582B1 EP0168582B1 (fr) 1991-09-18

Family

ID=6236481

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85105890A Expired - Lifetime EP0168582B1 (fr) 1984-05-22 1985-05-14 Procédé et dispositif pour le conditionnement de matériaux en fibres synthétiques

Country Status (7)

Country Link
US (2) US4718257A (fr)
EP (1) EP0168582B1 (fr)
JP (1) JPS60252762A (fr)
DE (2) DE3418942A1 (fr)
ES (1) ES8603969A1 (fr)
IE (1) IE57427B1 (fr)
PT (1) PT80449B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2594860A1 (fr) * 1986-02-21 1987-08-28 Superba Sa Procede pour la thermofixation continue des fibres textiles
DE3634753A1 (de) * 1986-09-05 1988-03-17 Bayer Ag Kontinuierliche spinnverfahren fuer acrylnitrilfaeden und -fasern mit daempfung des spinngutes
DE3630244A1 (de) * 1986-09-05 1988-03-17 Bayer Ag Kontinuierliches trockenspinn- und nachbehandlungsverfahren des spinngutes fuer hochschrumpffaehige acrylnitrilfaeden und -fasern und entsprechende faeden und fasern

Families Citing this family (17)

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Publication number Priority date Publication date Assignee Title
FR2611755B1 (fr) * 1987-03-06 1990-04-13 Superba Sa Procede et installation pour le traitement thermique de fils textiles notamment par thermofixation
JPH01239154A (ja) * 1988-03-09 1989-09-25 Kanebo Ltd スチーマ装置
FR2650310B1 (fr) * 1989-07-26 1992-02-28 Superba Sa Installation de traitement thermique de fils textiles en continu
FR2681341B1 (fr) * 1991-09-18 1994-12-09 Superba Sa Procede et dispositif de frisage des fils, avec prevaporisage.
US5361609A (en) * 1992-06-10 1994-11-08 Murata Kikai Kabushiki Kaisha Steam setting apparatus
JP4186015B2 (ja) * 1998-01-27 2008-11-26 株式会社四国いずみ繊維 生地の安定化方法、生地の安定化装置及び生地の製造方法
US6425926B1 (en) * 1999-05-04 2002-07-30 Jakobus Hindriks Thermosol treatment of textiles carrying a dye
DE50011009D1 (de) * 1999-05-28 2005-09-29 Moenus Textilmaschinen Gmbh Verfahren zur kontinuierlichen Wärmebehandlung einer textilen Warenbahn, insbesondere zum Farbfixieren
DE102006011181A1 (de) * 2006-03-10 2007-09-13 Airmatic Gmbh Verfahren und Vorrichtung zur Kühlung von heißen Oberflächen mit Hochdruck-Vakuum-Technik
JP5087268B2 (ja) * 2006-12-15 2012-12-05 株式会社フジシールインターナショナル シュリンクフィルムの加熱収縮装置
DE102007053991A1 (de) * 2007-11-13 2009-05-14 Fleissner Gmbh Vorrichtung zur Beaufschlagung von Stoffen mittels heißen Gasen
DE102009007669A1 (de) * 2009-02-05 2010-08-12 Fleissner Gmbh Verfahren und Vorrichtung zur Herstellung von Watteprodukten
DE102011054463B4 (de) * 2011-10-13 2014-04-10 Berning Maschinenfabrik Gmbh Verfahren zum Aufschrumpfen einer Hülse mittels überhitzten Dampfes
NO336439B1 (no) 2011-12-16 2015-08-17 Nebb Engineering As Fremgangsmåte og anordning for varmeherding og stabilisering av tekstiler anvendt i papirfremstillingsmaskiner
TWI655136B (zh) * 2014-06-27 2019-04-01 日商養樂多本社股份有限公司 Shrinking label heat shrinking device
DE102014011696A1 (de) * 2014-08-07 2016-02-11 Saurer Germany Gmbh & Co. Kg Vorrichtung zur thermischen Behandlung von Garnen
US10196757B1 (en) * 2015-03-23 2019-02-05 Uchicago Argonne, Llc Integrated system for nanofiber production

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US3045461A (en) * 1960-02-24 1962-07-24 Toho Rayon Kk Apparatus for acetylating cellulose fibers in gaseous phase
US3365752A (en) * 1963-02-20 1968-01-30 Farell Jaime Cirera Continuous processing machine for scouring, dyeing and carding wool fibers
US3320022A (en) * 1964-04-27 1967-05-16 Fmc Corp Method for the continuous vapor phase acetylation of cellulose fiber
FR1439284A (fr) * 1965-04-16 1966-05-20 British Nylon Spinners Ltd Appareil pour traiter des matières textiles
FR1531935A (fr) * 1966-07-22 1968-07-05 Vepa Ag Installation et procédé pour le traitement de matières textiles
DE2060941A1 (de) * 1970-12-11 1972-08-10 Bayer Ag Verfahren und Vorrichtung zum Behandeln von kontinuierlich gefoerdertem,synthetischem Fasermaterial
DE2217667C2 (de) * 1972-04-12 1982-09-09 Vepa AG, 4125 Riehen, Basel Abdichtungsvorrichtung für einen Banddämpfer
US3908410A (en) * 1972-05-16 1975-09-30 Iws Nominee Co Ltd Apparatus for the treatment of textile fibers and fabrics
JPS513827B2 (fr) * 1972-06-27 1976-02-06
US4052796A (en) * 1972-09-27 1977-10-11 Arendt Hans F Process and apparatus for the continuous finishing of webs of textiles, artificial leather and the like
DE2324336A1 (de) * 1973-05-23 1974-12-05 Montedison Fibre Spa Vorrichtung zum kontinuierlichen, gesteuerten waermeschrumpfen von kammzugbaendern
US3945225A (en) * 1973-05-25 1976-03-23 Mccoy Lyle E Continuous textile dyeing apparatus
AT341473B (de) * 1975-10-06 1978-02-10 Meyer Arnfried Verfahren und vorrichtung zum behandeln von textilen warenbahnen
US4133636A (en) * 1977-06-30 1979-01-09 Blu-Surf, Inc. Tentor
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FR2453928A1 (fr) * 1979-04-11 1980-11-07 Superba Ets Installation pour le traitement thermique de fils textiles
DE3019286A1 (de) * 1979-05-23 1980-12-04 Sando Iron Works Co Verfahren und vorrichtung zum kontinuierlichen behandeln einer stoffbahn
US4345385A (en) * 1979-06-14 1982-08-24 Sando Iron Works Method for continuous drying of a cloth and an apparatus therefor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2594860A1 (fr) * 1986-02-21 1987-08-28 Superba Sa Procede pour la thermofixation continue des fibres textiles
DE3634753A1 (de) * 1986-09-05 1988-03-17 Bayer Ag Kontinuierliche spinnverfahren fuer acrylnitrilfaeden und -fasern mit daempfung des spinngutes
DE3630244A1 (de) * 1986-09-05 1988-03-17 Bayer Ag Kontinuierliches trockenspinn- und nachbehandlungsverfahren des spinngutes fuer hochschrumpffaehige acrylnitrilfaeden und -fasern und entsprechende faeden und fasern

Also Published As

Publication number Publication date
IE851267L (en) 1985-11-22
US4773109A (en) 1988-09-27
JPS60252762A (ja) 1985-12-13
US4718257A (en) 1988-01-12
ES543344A0 (es) 1986-01-01
IE57427B1 (en) 1992-09-09
PT80449B (pt) 1987-06-17
DE3418942A1 (de) 1985-11-28
DE3584118D1 (de) 1991-10-24
JPH0447066B2 (fr) 1992-07-31
ES8603969A1 (es) 1986-01-01
PT80449A (en) 1985-06-01
EP0168582B1 (fr) 1991-09-18
EP0168582A3 (en) 1989-02-08

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