EP0364874A2 - Procédé de fabrication d'un fil assemblé - Google Patents

Procédé de fabrication d'un fil assemblé Download PDF

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Publication number
EP0364874A2
EP0364874A2 EP89118903A EP89118903A EP0364874A2 EP 0364874 A2 EP0364874 A2 EP 0364874A2 EP 89118903 A EP89118903 A EP 89118903A EP 89118903 A EP89118903 A EP 89118903A EP 0364874 A2 EP0364874 A2 EP 0364874A2
Authority
EP
European Patent Office
Prior art keywords
thread
treatment
low
elastane
stretch
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
EP89118903A
Other languages
German (de)
English (en)
Other versions
EP0364874B1 (fr
EP0364874A3 (en
Inventor
Bernd Gehrmann
Heinz Treptow
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.)
Oerlikon Barmag AG
Original Assignee
Barmag AG
Barmag Barmer Maschinenfabrik 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 Barmag AG, Barmag Barmer Maschinenfabrik AG filed Critical Barmag AG
Publication of EP0364874A2 publication Critical patent/EP0364874A2/fr
Publication of EP0364874A3 publication Critical patent/EP0364874A3/de
Application granted granted Critical
Publication of EP0364874B1 publication Critical patent/EP0364874B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D02G1/20—Combinations of two or more of the above-mentioned operations or devices; After-treatments for fixing crimp or curl
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
    • D02G1/0266—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting false-twisting machines
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
    • D02G3/328—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic containing elastane
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/08—Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams

Definitions

  • thermoplastic i.e. a relatively low-stretch thread together with an elastane thread that has a comparatively high, e.g. has more than ten times its extensibility
  • This method has the disadvantage that the air jet treatment can only result in an intensive and even connection of the two threads if the interconnected threads are passed through the air jet treatment at low speed or if a particularly intensive air jet treatment is carried out at high air pressure and air throughput.
  • the object of the invention is to design the known method so that a high-quality composite yarn with intensive interweaving of the individual components is produced in an industrial process at high yarn speeds and low energy consumption for air jet treatment.
  • the spreading treatment proposed thereafter relates in particular to the thermoplastic, ie low-stretch thread.
  • the spreading treatment can also relate to both threads, in particular if the spreading treatment only takes place after the two threads have been brought together (connected) (claim 2).
  • the spreading treatment means that the air can attack better in the air jet treatment, so that there is more intensive interweaving. Contrary to expectations, however, the mean distance between the interweaving zone is also shortened and evened out, so that even at high yarn speeds there is no danger that inadmissibly long pieces of yarn without interweaving zones will occur.
  • the thread in particular the thermoplastic thread
  • a false twist treatment before being connected to the elastane thread, the connection with the elastane thread then taking place during or immediately after the false twist has been dissolved.
  • the dissolution of the false twist leads, in particular when the false twist is also associated with a conveyance of the thread, to the fact that the individual filaments separate from one another, the thread becomes more voluminous and therefore a spreading of the individual filaments in the sense of this application is brought about (claim 4).
  • thermoplastic thread is drawn from the false twist zone with a thread tension between 0.2 and 0.6 cN / dtex from the false twist unit.
  • a suitable fluid nozzle is e.g. in the unpublished German patent application P 38 35 169.2 (Z-1661) shown.
  • other fluid nozzles in particular air nozzles, lead to sufficient separation of the individual filaments and spreading in the sense of the application.
  • the nozzle mentioned above has the advantage that the spreading takes place essentially in one plane and that the effort in terms of pressure and air volume is low.
  • the spreading treatment can be carried out either only on the thermoplastic thread or after the connection with the elastane thread (claim 7).
  • the elastane thread is combined with the low-stretch thread in the tensioned state (claim).
  • the thread tension is preferably applied by a defined supply (claim 13).
  • the composite thread is supplied with the air jet treatment (claim 9), and that the thread tension during the air jet treatment is kept constant by the measure according to claim 10.
  • the relaxation in the air treatment zone gives the composite thread high elasticity and high bulk (crimp) with good coverage and great comfort, but above all an intensive mixing and knotting (tangling) of the previously spread filaments.
  • the measure according to claim 12 also contributes to this.
  • the bobbin can be produced with the desired hardness without the thread properties to be achieved by the air jet treatment being impaired thereby.
  • thread tension fluctuations caused by the winding cannot have a disturbing effect in the air jet treatment.
  • the elastane thread is drawn off from the supply spool 14 overhead.
  • the head package is preceded coaxially by a head thread guide 27.
  • the elastane thread is drawn off by the delivery mechanism 28 and then guided to the withdrawal mechanism 12.
  • the thermoplastic thread is drawn off from the supply spool 1 by the thread guide 4 by means of a take-off mechanism 5.
  • the thread is then passed over a drawing pin 29 with a 360 ° loop and drawn out of the drawing zone by drawing device 30 and then also led to take-off device 12.
  • the threads are drawn off together by the take-off mechanism 12.
  • the threads are preferably guided separately, as shown in FIG. 1 / 2A.
  • the threads are guided through a tangel nozzle 19 and drawn off from it by the take-off unit 31.
  • the threads are then wound on the take-up spool 24, for which purpose the take-up spool 24 is driven by the drive roller 25 on its circumference.
  • the position of a traversing device is indicated schematically at 32.
  • the procedure in the three cases shown is as follows:
  • the thermoplastic thread is drawn between the take-off unit 5 and the drafting unit 3.
  • the stretching point or the stretching zone is formed on or behind the stretching pin 29.
  • the peripheral speed of the drawing-off mechanism 28 for the elastane thread is set to the peripheral speed of the drawing-off mechanism 12 such that both the thermoplastic thread and the elastane thread run towards the withdrawal mechanism in the tensioned state.
  • the thread tension of the elastane thread is preferably between 0.1 and 0.3 cN / dtex, while the thread tension of the low-stretch, thermoplastic thread is between 0.2 and 0.8 cN / dtex.
  • the peripheral speed of the extraction mechanism 31 is at least 2% lower, preferably 6 to 9% lower than the peripheral speed of the extraction mechanism 12.
  • the spreading treatment serves to loosen the fiber composite of the individual filaments of the low-stretch thread 1 held together by adhesive and cohesive forces.
  • an expansion treatment is carried out in the stretching zone.
  • the combination of a thread guide 33 with two overflow edges 33.1 and 33.2 and a knife 34 which projects between the overflow edges 33.1 and 33.2 serves as the spreading device 32. The thread is passed between the overflow edges 33.1, 33.2 and the knife and is thereby tensioned and spread along the knife edge.
  • the spreading device consists of a spreading nozzle, as shown in detail in the aforementioned patent application P 38 35 169.2 (Z-1661) and in FIG. 5.
  • a spreading nozzle is also provided as the spreading device 32, but in this case is provided directly in front of the air jet treatment nozzle (tangle nozzle) 19.
  • the supply spool 1 with a thermoplastic thread 1, for example nylon, perlon, polyester, is plugged onto a drain mandrel 3 on the gate 2, which is only partially shown.
  • the thread is guided through the centrally arranged top thread guide 4 and drawn off by a feed mechanism 5.
  • the Delivery unit 5 is driven by motor 7.
  • the thread is pressed against the surface of the delivery mechanism 5 by pressure roller 6, which is under spring force.
  • the thread is passed over a heating plate 9 and a subsequent cooling plate 10 before it runs into the false twister 11 - indicated here as a friction false twister with a plurality of disks which are attached to three rotating axes.
  • the thread is withdrawn from the false twist zone by delivery mechanism 12.
  • the delivery mechanism 12 is driven by motor 13.
  • the thread is pressed against the surface of the delivery mechanism 12 by a strap looped over two freely rotating rollers.
  • elastane thread on the supply spool 14. It is a highly elastic, rubber-like, elastomeric continuous thread.
  • the coil 14 is mounted in a rocker 17 on the gate 2 and lies with its circumference on a drive roller 15.
  • the drive roller 15 is driven by the motor 16 such that the elastane thread is unwound.
  • the elastane thread is guided separately from and parallel to the thermoplastic thread into the feed mechanism 12 via deflection roller 18.
  • This blowing nozzle 19 is a tangel nozzle.
  • the function of the Tangel nozzle is to form knots between the individual filaments of the two threads, which are repeated in a more or less regular sequence.
  • Behind the tangel nozzle 19 the now combined thread is passed over an oil roller which is driven by motor 22 at low speed.
  • the thread is then fed to the take-up spool 24 via deflection 23 and a traversing device, not shown.
  • the take-up reel 24 lies on the drive roller 25 and is driven by motor 26 at a defined speed.
  • the drawing mechanism 31 shown in dashed lines is provided between the tang nozzle and the take-up.
  • the speed of the draw-off mechanism 31 can be set independently of the speed of the other yarn feed mechanisms and the drive rollers 15 and 25.
  • thermoplastic thread is only pre-oriented. It is stretched between the delivery plants 5 and 12.
  • the delivery mechanism 12 is therefore driven in relation to the delivery mechanism 5 at a speed ratio of 1.1: 1 to 2: 1.
  • a thread tension of 0.3 to 0.8 cN / dtex is established in front of the delivery mechanism 12.
  • the drive roller 15 of the supply spool for the elastane thread is driven at a significantly lower peripheral speed than the feed mechanism 12.
  • the speed ratio is between 1: 2 to 1: 4.
  • the thread tension of the elastane thread is therefore between 0.1 and 0.4 cN / dtex before the delivery mechanism 12.
  • the speed of the drive roller 25 for the take-up reel 24 is lower than the speed of the supply mechanism 12, preferably between 4 and 10% lower. If the withdrawal mechanism 31 is provided, these speed ratios apply to the delivery mechanism 12 and the withdrawal mechanism 31.
  • the relative thread tension during winding is very low, since the tensile forces are only absorbed by the elastane thread portion of the combination thread, but the titer is essentially equal to the sum of the individual titer.
  • the drop in the relative thread tension results from the fact that the absolute thread tension of the elastane thread in front of the supplying plant was 7 cN in one example, while the absolute thread tension of the combination thread behind the tangle nozzle is 5 cN.
  • the thread can be passed through a heating device in front of the blowing nozzle or preferably after the blowing nozzle, preferably before the take-off mechanism 31, in order to calm the tendency to torsion of the previously twisted thermoplastic thread.
  • Polyester, nylon or perlon are particularly suitable as thermoplastic threads.
  • the special feature of the method according to the invention is that the threads are brought together only in or shortly before the tangle nozzle. Otherwise there is a connection of the two threads, which is caused by the tendency of the previously false-twisted thread to curl and which interferes with the image of the overall thread.
  • the union of the elastane thread and the thermoplastic thread can only be effected as late as possible, preferably only after the delivery unit closing the false twist zone, if one wants to prevent the two threads from being connected by the tendency of the thermoplastic thread to curl.
  • thermoplastic thread has to be fed to the tangle nozzle at a speed which leads to extensive relaxation of the thermoplastic thread in the connection zone. If this does not happen, the low-stretch thermoplastic thread does not take part in the twisting and knotting by the air jet treatment, and the mixing and knotting of the threads becomes less intensive. On the other hand, the relaxation of the composite thread must remain limited so that the process is not disturbed. In contrast, the winding speed must be chosen so high that neither very soft, unstable, unusable bobbins nor unbearably hard bobbins with thread damage arise.
  • FIG. 5 shows a suitable expansion nozzle in longitudinal section, which can be used in the process sequence according to FIG. 2 or 3.
  • a thread tube 43 is fastened with its lower end in a mounting block 39.
  • the compressed air connection 38 opens into a collecting space 51, which continues in two compressed air channels 49.
  • the two compressed air channels 49 nestle against the outer circumference of the thread tube. Their diameter is smaller than that of the thread tube.
  • the inner boundary of the compressed air channels is formed by the outer wall of the thread tube.
  • the compressed air channels are diametrically opposite with respect to the thread tube.
  • the outer walls of the compressed air channels are convergent with respect to the axial direction of the thread tube and form a cross section with a minimal width 46.
  • the channels 49 emerge into the free environment.
  • the channels and the thread tube 43 are directed to a constriction 44.
  • the thread tube 43 and the two compressed air channels 49 are arranged together with the center points M of the two balls 42 and the constriction 44 in the plane in which the continuous thread is guided and spread out into its individual filaments 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP89118903A 1988-10-15 1989-10-11 Procédé de fabrication d'un fil assemblé Expired - Lifetime EP0364874B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3835138 1988-10-15
DE3835138 1988-10-15
DE3841740 1988-12-10
DE3841740 1988-12-10

Publications (3)

Publication Number Publication Date
EP0364874A2 true EP0364874A2 (fr) 1990-04-25
EP0364874A3 EP0364874A3 (en) 1990-12-12
EP0364874B1 EP0364874B1 (fr) 1993-09-29

Family

ID=25873268

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89118903A Expired - Lifetime EP0364874B1 (fr) 1988-10-15 1989-10-11 Procédé de fabrication d'un fil assemblé

Country Status (3)

Country Link
US (1) US5008992A (fr)
EP (1) EP0364874B1 (fr)
DE (1) DE58905762D1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2749859A1 (fr) * 1996-06-18 1997-12-19 Icbt Valence Procede de realisation d'un fil mixte extensible et machine pour sa mise en oeuvre
US6840032B2 (en) 2001-10-10 2005-01-11 Saurer Gmbh & Co. Kg Yarn texturing machine for producing a composite yarn
WO2007054334A1 (fr) * 2005-11-12 2007-05-18 Oerlikon Textile Gmbh & Co. Kg Dispositif de deviation d'un fil a haute elasticite
DE19746878B4 (de) * 1996-11-21 2008-01-24 Oerlikon Textile Gmbh & Co. Kg Verfahren zur Herstellung eines Mehrkomponentenfadens
KR101185206B1 (ko) 2009-06-29 2012-09-21 코오롱인더스트리 주식회사 아라미드 공기교락사 및 그 제조방법

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2735501A1 (fr) * 1995-06-15 1996-12-20 Payen & Cie L Procede pour la fabrication d'un fil guipe elastique et nouveau type de fil ainsi obtenu
US6105224A (en) 1998-09-28 2000-08-22 O'mara Incorporated Bulk yarns having improved elasticity and recovery, and processes for making same
IT1302607B1 (it) * 1998-10-06 2000-09-29 Fadis Spa Procedimento e relativa macchina per l'accoppiamento di un filoelastomerico ad un filo inestensibile.
US6543106B1 (en) * 1999-10-25 2003-04-08 Celanese Acetate, Llc Apparatus, method and system for air opening of textile tow and opened textile tow web produced thereby
ITMI20010600U1 (it) * 2001-11-14 2003-05-14 Giudici Davide E Figli S N C D Macchina testurizzatrice
JP2003201637A (ja) * 2001-12-27 2003-07-18 Nisshinbo Ind Inc 複合弾性糸及びその製造方法及びストレッチ性織物及びストレッチ性編物
EP1411014A1 (fr) * 2002-10-17 2004-04-21 Giudici S.p.a. Procédé et dispositif pour la production d'un fil élastique et pour remplacer automatiquement les bobines d'alimentation
US6848151B2 (en) * 2003-03-31 2005-02-01 Invista Norh America S.à.r.l Air-jet method for producing composite elastic yarns
TW200523410A (en) * 2003-12-02 2005-07-16 Giudici S P A Method and device for the production of a covered elastic yarn and for automatic replacement of feed spools
CN100472004C (zh) * 2004-08-17 2009-03-25 江苏宏源纺机股份有限公司 利用高速弹力丝机制造花色丝的方法
EP2844789A1 (fr) 2012-05-03 2015-03-11 Nytex S.r.l. Fil composite entrelacé
US9080265B2 (en) * 2012-11-19 2015-07-14 New Horizon Elastic Fabric Co., Ltd Fabric strap with soft side edges
JP6234866B2 (ja) * 2014-03-31 2017-11-22 ユニチカトレーディング株式会社 ポリエステル複合仮撚糸の製造方法
CN103938331B (zh) * 2014-04-30 2016-03-02 福建万家丽科技实业有限公司 网络纱成型装置
US9758908B2 (en) * 2014-11-03 2017-09-12 Goodrich Corporation System and method for preparing textiles with volumized tows for facilitating densification
US12129577B2 (en) * 2019-04-17 2024-10-29 Snako Tekstil Isletmeleri San. Ve Tic A.S. Composite yarn comprising at least two bundles of coalesced elastic filaments and a plurality of inelastic elements
CN113062022A (zh) * 2021-03-17 2021-07-02 绍兴市柯桥区东纺纺织产业创新研究院 一种高弹纱的生产方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3952496A (en) * 1969-02-19 1976-04-27 Akzona Incorporated Composite thread
GB1453979A (en) * 1973-03-16 1976-10-27 Du Pont Canada Composite yarns
US3940917A (en) * 1974-09-05 1976-03-02 E. I. Du Pont De Nemours And Company Composite elastic yarns and process for producing them
DE7520319U (de) * 1975-06-26 1976-04-01 Barmag Barmer Maschinenfabrik Ag, 5600 Wuppertal Stauchkraeuselvorrichtung fuer thermoplastische faeden
JPS5249367A (en) * 1975-10-15 1977-04-20 Mitsubishi Rayon Co Method of suedeelike knitted woven goods
US4341063A (en) * 1980-08-26 1982-07-27 Milliken Research Corporation Air textured yarns
DE3789006T2 (de) * 1986-11-26 1994-09-01 Fadis Spa Maschine für das Zusammenfügen verschiedener Garne mittels Luftblasens.

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2749859A1 (fr) * 1996-06-18 1997-12-19 Icbt Valence Procede de realisation d'un fil mixte extensible et machine pour sa mise en oeuvre
WO1997048843A1 (fr) * 1996-06-18 1997-12-24 Icbt Valence Procede de realisation d'un fil mixte extensible et machine pour sa mise en oeuvre
DE19746878B4 (de) * 1996-11-21 2008-01-24 Oerlikon Textile Gmbh & Co. Kg Verfahren zur Herstellung eines Mehrkomponentenfadens
US6840032B2 (en) 2001-10-10 2005-01-11 Saurer Gmbh & Co. Kg Yarn texturing machine for producing a composite yarn
WO2007054334A1 (fr) * 2005-11-12 2007-05-18 Oerlikon Textile Gmbh & Co. Kg Dispositif de deviation d'un fil a haute elasticite
KR101185206B1 (ko) 2009-06-29 2012-09-21 코오롱인더스트리 주식회사 아라미드 공기교락사 및 그 제조방법

Also Published As

Publication number Publication date
US5008992A (en) 1991-04-23
DE58905762D1 (de) 1993-11-04
EP0364874B1 (fr) 1993-09-29
EP0364874A3 (en) 1990-12-12

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