EP0276704B1 - Verfahren und Vorrichtung zur Behandlung eines Faserkabels - Google Patents

Verfahren und Vorrichtung zur Behandlung eines Faserkabels Download PDF

Info

Publication number
EP0276704B1
EP0276704B1 EP88100540A EP88100540A EP0276704B1 EP 0276704 B1 EP0276704 B1 EP 0276704B1 EP 88100540 A EP88100540 A EP 88100540A EP 88100540 A EP88100540 A EP 88100540A EP 0276704 B1 EP0276704 B1 EP 0276704B1
Authority
EP
European Patent Office
Prior art keywords
crimping
gas
treatment
cake
filter plate
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 - Lifetime
Application number
EP88100540A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0276704A3 (en
EP0276704A2 (de
Inventor
Wolfram Dr. Wagner
Dieter Dipl.-Ing. Paulini
Peter Dipl.-Ing. Widder
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.)
Bayer AG
Original Assignee
Bayer 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6319733&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0276704(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bayer AG filed Critical Bayer AG
Publication of EP0276704A2 publication Critical patent/EP0276704A2/de
Publication of EP0276704A3 publication Critical patent/EP0276704A3/de
Application granted granted Critical
Publication of EP0276704B1 publication Critical patent/EP0276704B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • D02G1/20—Combinations of two or more of the above-mentioned operations or devices; After-treatments for fixing crimp or curl
    • D02G1/205—After-treatments for fixing crimp or curl

Definitions

  • the invention relates to a method for treating a fiber cable in a device into which it is inserted, treated and from which it is carried out, and the device.
  • Fiber cables are generally subjected to various treatments, for example drying, relaxing or heat setting steps, in particular after washing, stretching or finishing, in order, for example, to obtain a desired moisture content and certain values for properties such as elongation, strength or dyeability.
  • such fiber cables are usually crimped in order to prevent the fiber cable from falling apart into individual threads and / or as cut fiber to have sufficient adhesion for the subsequent spinning process.
  • the various treatments, for example drying, relaxing and heat-setting steps are usually carried out by treating the fiber cable with a gas, in particular with steam or heated air. Certain dwell times must be observed and required for these steaming and drying processes.
  • so-called screen belt dryers are known, on which the product is placed in a meandering and low-tension manner and is thus transported through the treatment zones.
  • the low-tension, mostly tension-free storage on the sieve belt has the disadvantage that product layers of the folded cable that have been deposited first come down and are always covered by product layers that are deposited later, so that when the cable is pulled off the sieve belt, a large part of the cable is underneath the rest electric wire must be pulled away. This can lead to confusion, matting and thus disruption of the process.
  • the cable must be placed on so-called reversing drums before insertion into the steaming or drying apparatus, which ensure that the product layers first deposited come to lie on the sieve belt and can be pulled off properly.
  • a disadvantage of this complicated technique is that the device is difficult to seal on the product inlet side, so that large amounts of air are unnecessarily introduced into the device and heated, or impair the treatment gas purity, or harmful emissions from the leaks can escape. Furthermore, the reversing drum causes the cable to cool down, and thus energy loss.
  • Belt dampers are known for the steaming / relaxing of cut fibers / flakes, in which the material is introduced into the treatment zone with the inclusion of a relatively large amount of air by means of the wire belt, where it is steamed with overheated steam by circulating it. Disadvantages of these devices are the difficult sealing options, coupled with undefined vapor concentrations and high expenditure of time, e.g. with color changes.
  • the object of the invention is to provide an improved treatment method, in particular To curl and treat fiber cables with tape weights of 5 to 500 ktex with low energy and emissions, in particular to dampen, relax, dry and / or fix them.
  • the object of the invention is further a
  • Process for improved, energy-saving and low-emission treatment of a fiber cable in a treatment device characterized, that the fiber cable with tape weights of 5-500 ktex is inserted into the treatment device by a mechanical or aerodynamic crimping device as a product entry lock, that it is crimped to obtain a crumb cake having a cross-sectional shape longer than heights, that the crimp cake is conveyed over a gas-permeable, fixed sieve plate, gas flowing through the sieve plate from below against the crumble cake so that it conveys contactlessly or with reduced contact force in the floating state due to the low shear force of the crimping device over the horizontal or slightly inclined sieve plate becomes, that the crumble cake is treated in the desired manner, if necessary divided into several treatment zones, with air or steam as gas, each by a fan, if appropriate via a heat exchanger, circulated through the product through the product during the stay on the sieve plate and that the crimp cake finally emerges from the treatment device.
  • Preferred cross-sectional shapes of the crimp cake are those that have lengths greater than heights, for example oval, elliptical or rectangular.
  • the crimping is preferably carried out in an aerodynamic crimping device with a hot, gaseous medium of 5 to 16 bar pressure and a temperature of 50 to 210 ° C.
  • Preferred crimping devices are known from US Pat DE-A-3 308 657 is known.
  • the crimping nozzle used can be operated with steam or appropriately tempered air.
  • the end wall in which it is mounted can at the same time be the end wall of a previous device, in which washing, stretching or finishing is carried out, for example.
  • the ruffling nozzle preferably consists of an inlet part, a mixing section, a diffuser and a rod cage.
  • the effective opening of the curling nozzle is rectangular.
  • the sliver opens in the diffuser, which is then braked and curled in the rod cage.
  • the rod cage preferably consists of rods arranged axially parallel, between which gas can escape.
  • the object of the invention is further a
  • Device for treating a Fezercht characterized by an aerodynamic crimping device mounted gas-tight on one end with a rectangular cross section of the crimping nozzle and with a connected cage made of rods arranged parallel to the conveying device as product lock, a gas-permeable, fixed sieve plate in continuation of the lower edge of the outlet opening of the crimping nozzle, a gas conveying device for blowing in gas below the sieve plate to convey the crumble cake without contact or with a reduced contact force under the thrust of the crimping device and for extracting the injected gas via a fan, a heat exchanger and throttle valves and re-introduction from below into the treatment zone, whereby several such circuits may be lined up in the form of a zone, an outlet for the goods to be treated and a housing enveloping the nozzle up to the outlet opening.
  • the actual treatment device preferably consists essentially of an elongated channel, the cross-sectional shapes of which are adapted to the crimp cake cross-section is that has a perforated simple or double floor for uniform flow distribution in the longitudinal and transverse directions, including a gas distribution space, for example with a triangular profile and above it a flat or funnel-shaped gas collection hood.
  • the mechanical and aerodynamic crimping device is mounted gas-tight on one end and forms the product inlet lock, opposite it is an opening for the product outlet.
  • another gas-permeable sieve plate or so-called skid-shaped hold-down device mounted in the longitudinal direction can be mounted above the product in order to prevent the curling cake from "bulging" out of the longitudinal form.
  • the treatment device can be divided into several treatment zones.
  • the treatment medium preferably steam or air
  • the treatment medium can each be circulated by a fan via a heat exchanger and the product.
  • a particularly preferred method is characterized in that above the crimp cake conveyed over the sieve belt, the gas which is blown in is drawn off by means of a fan via a heat exchanger and throttle valves, and is re-introduced into the treatment zone from below, that is to say is circulated and several such circuits are in the form of zones can string together.
  • heat exchangers can be dispensed with and fresh air can be used for cooling. If the apparatus is used as a dryer, a fresh air stream can be superimposed on the internal circuits in counterflow to the product. This fresh air flow cools the product in the cooling zones and heats up at the same time.
  • a major advantage of a fixed sieve plate is that the apparatus is sealed particularly well and there are no rotating parts on which cable runners could form.
  • the effectiveness and purity of the treatment gases are improved by the low leakage air quantities and a gentle and even product treatment is guaranteed.
  • the stretched fiber sliver is converted into a compressed, round, oval or square cake pan.
  • the compression factor defined as the ratio of the sliver speed to the cake speed, is preferably in the range from 2 to 100, in particular 2 to 25.
  • conveyor speeds of 0.2 to 5 m / min can be realized and thus relatively small equipment with long dwell times of, for example, 2 to 15 minutes.
  • the upsetting enables the weight per unit area of 1.5 to 20 kg / m to be achieved. This enables gentle and very even treatments with low gas velocities of 0.3 to 3 m / sec.
  • the fiber cable enters the treatment device at a speed of 50 to 150 m per minute and exits - crimped and treated - at a speed of 2 to 5 m per minute.
  • gaseous medium preferably steam or hot air
  • the method according to the invention is suitable in principle for all endless fiber cables which have to be subjected to hydrothermal gas treatments.
  • the method according to the invention for treating acrylic fiber cables is very particularly effective, preferably produced by the dry spinning method.
  • the cut fibers can be conveyed continuously from the cutting device in a pneumatic conveying line to the baling press and pressed therein into completely packed fiber bales.
  • the fiber cable can in principle be of the most varied chemical composition and be produced by the most varied of processes.
  • it is a polyacrylonitrile with optionally other copolymers, which is made from a suitable solvent, e.g. Dimethylformamide has been produced by the dry spinning process.
  • FIG. 1 shows a longitudinal section of a preferred device in which the method according to the invention can be carried out.
  • the sliver 1 is fed to the crimping device 3 charged with air or steam via line 2, shaped by it into a crimp cake 4 and pushed over the fixed sieve plate 5.
  • the gas stream 6 flowing from the crimping device into the treatment device is collected together with the circulated stream 11 in the hood 7 and fed via line 8 to the units (not shown) such as heat exchangers, fans, throttling elements and via line 9 again below the sieve plate 5 promoted in the channel 10, which ensures the uniform application of the sieve plate 5.
  • Another sieve plate 12 or skid-shaped hold-down device 12 ⁇ can be located above the crimp cake.
  • the crimp cake 4 After passing through the treatment zone, the crimp cake 4 leaves the apparatus together with a partial flow 13 of the treatment gas through the opening 14 and can be conveyed to a person not shown, e.g. downstream cooling or conveyor belt are supplied.
  • FIG. 2 shows a section A-B of the device described above.
  • Fig. 3 shows an alternative device with a known mechanical crimping device.
  • the sliver 1 is fed from the crimping rollers 15 to the crimping chamber 16 and pushed into the treatment device as a crimp cake 4.
  • This consists, similar to FIG. 2, of a single or double sieve plate 5, a hood 7, the discharge and supply lines 8 and 9 and the channel 10.
  • the treatment gas air or steam
  • FIG. 4 shows the corresponding section A-B through the device according to FIG. 3.
  • the crimping nozzle shown in Fig. 5 consists of an inlet part (21), the mixing section (25), the diffuser (26) and the rod cage (27).
  • the sliver (1) is sucked in through the mouthpiece (30).
  • a hot gas (29) is fed through the feed line (22) and the gap (23), heats and conveys the belt.
  • a polyacrylic fiber tape of 70 ktex is fed at 20 m / min to a nozzle operated with steam at 9 bar and 170 ° C. and shaped into a crumb cake of 125 mm width and 25 mm height and a basis weight of 10 kg / m2.
  • the crimp cake is kept in suspension for 3 minutes from below with superheated steam at 125 ° C., a concentration of 98% and a speed of 0.85 m / sec and conveyed through the treatment zone.
  • the band boil shrinkage decreases from 23.1 to 0.9%, and solvent loses from 3.3 to 1.7%.
  • the fiber strength drops from 2.7 to 2.4 cN / dtex and the elongation increases from 26.4 to 40.4%.
  • the moisture of the tape decreases from 50 to 35%.
  • a sliver of 80 ktex is fed at 60 m / min to the crimping nozzle, which is operated with hot air at 180 ° C. and 5 bar.
  • the curling cake which is formed and is 125 mm wide and 30 mm high is blown with air at 160 ° C. at a rate of 0.9 m / s from below and conveyed through the apparatus.
  • the crumble cake with a basis weight of 12 kg / m2 dries from 45 to 15% moisture content based on solids.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Filtering Materials (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Nonwoven Fabrics (AREA)
EP88100540A 1987-01-29 1988-01-16 Verfahren und Vorrichtung zur Behandlung eines Faserkabels Expired - Lifetime EP0276704B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3702543 1987-01-29
DE19873702543 DE3702543A1 (de) 1987-01-29 1987-01-29 Verfahren und vorrichtung zur behandlung eines faserkabels

Publications (3)

Publication Number Publication Date
EP0276704A2 EP0276704A2 (de) 1988-08-03
EP0276704A3 EP0276704A3 (en) 1989-11-29
EP0276704B1 true EP0276704B1 (de) 1992-04-22

Family

ID=6319733

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88100540A Expired - Lifetime EP0276704B1 (de) 1987-01-29 1988-01-16 Verfahren und Vorrichtung zur Behandlung eines Faserkabels

Country Status (6)

Country Link
US (1) US4854020A (ja)
EP (1) EP0276704B1 (ja)
JP (1) JPS6420338A (ja)
DE (2) DE3702543A1 (ja)
ES (1) ES2030766T3 (ja)
IE (1) IE61022B1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3904932A1 (de) * 1989-02-17 1990-08-23 Bayer Ag Vorrichtung zur kontinuierlichen daempfung/trocknung (gekraeuselter) faserbaender und ein verfahren
US6718603B2 (en) * 2001-12-21 2004-04-13 Superba (Sa) Apparatus and method for producing frieze yarns

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2874446A (en) * 1955-11-04 1959-02-24 American Cyanamid Co Method of producing a tow of filamentary material
US2924001A (en) * 1959-06-26 1960-02-09 Crimp setting device
BE599467A (fr) * 1960-03-04 1961-05-16 Glanzstoff Ag Procédé et dispositif pour le séchage et la fixation continus de bandes frisées en fils synthétiques sans fin
NL285809A (ja) * 1961-11-24
GB1077520A (en) * 1963-12-27 1967-08-02 Snia Viscosa Improved process and apparatus for use in the crimping of filaments
GB1183177A (en) * 1967-05-24 1970-03-04 Vepa Ag Process and Device for the Continuous Treatment of Textile Lengths
US3887969A (en) * 1973-09-14 1975-06-10 Phillips Petroleum Co Apparatus and method for cooling a crimped tow
US4100659A (en) * 1974-03-05 1978-07-18 Basf Aktiengesellschaft Process for texturizing filaments
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
DE2631393C3 (de) * 1976-07-13 1984-09-20 Bayer Ag, 5090 Leverkusen Düsenvorrichtung zur Herstellung texturierter Filamentgarne
GB1555530A (en) * 1976-09-09 1979-11-14 Ici Ltd Process for the production of haet set crimped yarn
JPS5842292B2 (ja) * 1977-06-07 1983-09-19 帝人株式会社 糸条の巻縮加工装置
DE2828306C2 (de) * 1978-06-28 1982-07-08 Bayer Ag, 5090 Leverkusen Vorrichtung zum Blastexturieren thermoplatischen Textilgarns
JPS5685438A (en) * 1979-12-07 1981-07-11 Teijin Ltd Development of latent crimps
DE3308657A1 (de) * 1983-03-11 1984-09-20 Bayer Ag, 5090 Leverkusen Kontinuierliches verfahren zur herstellung von polyacrylnitrilfaeden und -fasern
JPS6039470A (ja) * 1983-08-10 1985-03-01 株式会社高分子加工研究所 連続繊維熱処理方法及び装置
DE3538871A1 (de) * 1985-11-02 1987-05-07 Bayer Ag Verfahren zur behandlung eines endlosen faserkabels

Also Published As

Publication number Publication date
DE3870263D1 (de) 1992-05-27
DE3702543A1 (de) 1988-08-11
US4854020A (en) 1989-08-08
EP0276704A3 (en) 1989-11-29
ES2030766T3 (es) 1992-11-16
EP0276704A2 (de) 1988-08-03
IE61022B1 (en) 1994-09-07
JPS6420338A (en) 1989-01-24
IE880232L (en) 1988-07-29

Similar Documents

Publication Publication Date Title
EP0168582B1 (de) Verfahren und Vorrichtung zum Konditionieren von Synthesefasermaterial
DE2939870C2 (de) Verfahren und Vorrichtung zum Aufdünsten und Trocknen von gewaschenen Formteilen bzw. Bekleidungsstücken aus Gewebe
DE2218035A1 (de) Verfahren und vorrichtung zum kontinuierlichen fixieren und schrumpfen von synthese-fasern
EP1063337A2 (de) Verfahren und Vorrichtung zur kontinuierlichen Wärmebehandlung einer textilen Warenbahn, insbesondere zum Farbfixieren
DE1635342A1 (de) Verfahren und Vorrichtung zum Ausruesten von Wirk- und Strickwaren
EP0276704B1 (de) Verfahren und Vorrichtung zur Behandlung eines Faserkabels
EP0222214B1 (de) Verfahren zur Behandlung eines endlosen Faserkabels
DE69913416T2 (de) Vorrichtung zum Schrumpfen textiler Warenbahnen
EP0458089B1 (de) Verfahren und Vorrichtung zum Schlichten von Filamentgarn
DE3205962A1 (de) Waermebehandlungskanal
DE1460499A1 (de) Verfahren und Vorrichtung zum Trocknen und Buegeln von Kabeln und aehnlichem Textilgut
DE10100330B4 (de) Verfahren und Vorrichtung zum Trocknen einer Fadenschar
DE971078C (de) Verfahren zur Herstellung von gekraeuselten Fasern aus einem Fadenkabel aus polymerem ªŠ-Caprolactam
DE1031264B (de) Vorrichtung und Verfahren zum Behandeln von textilem und nicht textilem Gut in Form fester oder loser Bahnen mit gasfoermigen Mitteln
EP0199239B1 (de) Verfahren zur mehrstufigen Nachbehandlung von fortlaufend transportierten Faserkabeln und dazu erforderliche Vorrichtungen
DE2109565A1 (de) Vorrichtung zum Wämebehandeln von in Falten gelegten Kabeln
DE3241519C2 (ja)
DE8031895U1 (de) Vorrichtung zum waermebehandeln von bahnfoermigem textilgut
CH376219A (de) Apparat zur Kräuselung und Fixierung von Faserkabeln
DE2060941A1 (de) Verfahren und Vorrichtung zum Behandeln von kontinuierlich gefoerdertem,synthetischem Fasermaterial
DE3412982A1 (de) Verfahren und vorrichtung zum kontinuierlichen entfeuchten, trocknen, stabilisieren und anderen thermobehandlungen von bahnfoermigen waren, z.b. gewebe oder gewirke aus wolle, wollmischungen, baumwolle, baumwollmischungen, faservliesen u.dgl.
DE1902182A1 (de) Verfahren und Vorrichtung zum Behandeln von Textilgut
DE3028636A1 (de) Verfahren und vorrichtung zum trocknen von koernerfruechten
DE2064118A1 (en) Screening drum - for cable heat-treatment
DE2822026A1 (de) Verfahren und vorrichtung zum kontinuierlichen schrumpfen von garnen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19880116

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE ES FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE ES FR GB IT

17Q First examination report despatched

Effective date: 19910502

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT

ITF It: translation for a ep patent filed

Owner name: ING. C. GREGORJ S.P.A.

REF Corresponds to:

Ref document number: 3870263

Country of ref document: DE

Date of ref document: 19920527

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2030766

Country of ref document: ES

Kind code of ref document: T3

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: HOECHST AKTIENGESELLSCHAFT ZENTRALE PATENTABTEILUN

Effective date: 19930119

PLBM Termination of opposition procedure: date of legal effect published

Free format text: ORIGINAL CODE: 0009276

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION PROCEDURE CLOSED

27C Opposition proceedings terminated

Effective date: 19930827

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19941212

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19941229

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19950106

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19950117

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19960116

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19960117

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19960116

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19960930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19961001

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19990503

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050116