EP0052268B1 - Fil retors, procédé pour le fabriquer et son utilisation - Google Patents

Fil retors, procédé pour le fabriquer et son utilisation Download PDF

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Publication number
EP0052268B1
EP0052268B1 EP81109011A EP81109011A EP0052268B1 EP 0052268 B1 EP0052268 B1 EP 0052268B1 EP 81109011 A EP81109011 A EP 81109011A EP 81109011 A EP81109011 A EP 81109011A EP 0052268 B1 EP0052268 B1 EP 0052268B1
Authority
EP
European Patent Office
Prior art keywords
filament
filament bundle
bonding composition
bundle
thread
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP81109011A
Other languages
German (de)
English (en)
Other versions
EP0052268A1 (fr
Inventor
Bruno Schwarz
Emil Heiniger
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.)
Zwicky & Co AG
Original Assignee
Zwicky & Co AG
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Filing date
Publication date
Application filed by Zwicky & Co AG filed Critical Zwicky & Co AG
Priority to AT81109011T priority Critical patent/ATE12404T1/de
Publication of EP0052268A1 publication Critical patent/EP0052268A1/fr
Application granted granted Critical
Publication of EP0052268B1 publication Critical patent/EP0052268B1/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
    • 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
    • D02G3/40—Yarns in which fibres are united by adhesives; Impregnated yarns or threads

Definitions

  • the present invention relates to a bundle of threads with at least three strands consisting of a plurality of threads, which are connected to one another with an informal mass, this mass being located essentially inside the bundle of threads and being formed from a molten plastic thread, and the bundle of threads being twisted as a whole , as well as a method for its production and the use of thread bundles in weaving, knitting, embroidery and sewing.
  • a thread is made with a multifilament yarn in the S direction with certain twists per meter, depending on the material type and titer.
  • Two or more continuous strands pre-twisted in the S direction are now twisted together in the Z direction, with the appropriate turns per meter, according to the titer and the number of thread components. This is done on a specialist twisting machine, but can also be carried out on multi-tier or double-wire twisting machines after a previous specialist process.
  • the bundle of sewing threads is wound onto a fixation drum with a certain tension (stretching), according to titer and type of material, and the material is then heat-set on the fixation drum in an autoclave (nylon) or in an electric oven (polyester).
  • the temperature for nylon is approx. 100-140 ° C and the treatment time is approx. 80-130 min, for polyester 160-200 ° C and 80-140 min.
  • the second process differs from the first in that the drawing and the heat setting are carried out in one process (continue process), the drawing, the temperature and the treatment time being dependent on the titer, the type of material and the deduction.
  • the staple fiber production (synthetic cut fibers) takes place. with certain natural yarns, the staple fiber production, then the staple fibers are spun in the S direction with certain twists per meter (according to titer and intended use).
  • the cotton three-cylinder process
  • the Schappespinnmaschine are used.
  • the type of yarn originally determined the spinning process (silk, cotton).
  • the remaining process processes only differ from the continuous twist in that all the staple fiber sewing thread bundles are subjected to a gassing process (burning off the above fibers) after the finished twist production.
  • one or more multifilament or monofilament strands are spun with natural or synthetic staple spun.
  • the conventional ring spinning machine serves as the production machine.
  • twisting backward pessation also leads to unpleasant side effects, especially with continuous sewing threads made of polyamide and polyester.
  • the twisting is subjected to such a high pressure that a backlog of twine is unavoidable. This leads to wrinkles in the sewing thread, eventually to nodules, which inevitably leads to needle breakage, defective needle plate and finally to rejects.
  • nubs in all known staple fiber and core sewing threads presents the greatest problem in terms of sewability.
  • staple fiber sewing threads the insufficiently bound stacks are stored at the eye of the needle and thus lead to needle or thread breakage.
  • spun sewing threads the greatest danger lies in postponing the spinning, which in turn leads to pimples (thickening) at the eye of the needle and usually results in a thread break or a needle break.
  • a method for producing a thread bundle made of thermoplastic material is known, the strands of the thread bundle being arranged next to one another and at least one binding thread made of thermoplastic material being provided under the strands, the thread bundle being treated at elevated temperature so that the binding thread melts and fills the spaces between the strands forming the bundle of threads.
  • the bundle of threads is thermally treated stress-free and is therefore not sealed to the outside. Therefore, the material of the molten binding thread emerges from the thread bundle and forms a rough surface which prevents further processing.
  • These bundles of threads are therefore z. B. useless for sewing purposes.
  • such structures are wire-like and therefore completely inflexible (DE-AS 2204119).
  • thermoplastic yarn is wound, or. is twisted. This yarn thus remains in the center of the bundle of threads as a supporting component.
  • the present invention aims to create a bundle of threads with an optimal, permanent connection between the individual threads, without impairing the flexibility of the finished bundle of threads.
  • the thread bundle according to the invention fulfills these conditions, which is characterized in that the plastic thread forming the binding mass has a melting point below 155 ° C. and an elongation at break of more than 25%, and that in the cross section of the bundle the circumference consists exclusively of threads and without any binding mass is set.
  • Threads according to US Pat. No. 4,225,699 are used as connectors or connecting threads between the strands, such threads consisting of a copolyamide derived from at least 3 polyamide-forming monomer components, as claimed in this US Pat.
  • copolyamide threads are known under the name “separation yarns” because they are used to separate fabrics and knitted fabrics in dyeing processes. When used as connecting threads, they have important properties, which, however, only come into effect under very specific conditions (as will be explained in more detail elsewhere).
  • the inlet tensions in a double twist conveyor 7 at the 550th dtex threads must not exceed 0.02 gr. per dtex.
  • the inlet tension of the connecting thread B in the conveyor 7 must not fall below 0.18 gr per dtex.
  • finished thread can be a multifilament or monofilament copolyamide or Copolyester thread, which accounts for 0.5-15% of the final titer, is twisted as a connector.
  • the finished thread is then produced by winding three first twists AAB onto a bobbin 8 on a bobbin 8 analogously to that according to FIG. 1 in the Z direction with 150-200 turns per meter to form a finished thread bundle C (FIGS. 3,4).
  • a finished thread bundle (FIG. 4 is rewound (drawn) on a parallel stretch winder with a tension of 600-1100 gr.) On a fixation drum.
  • the sewing thread bundle is then treated on the fixation drum in an autoclave with a steam temperature of 110-140 ° C for 80-140 min with one or more intermediate vacuums.
  • the chain-shaped fiber building blocks are oriented in the longitudinal direction of the thread.
  • the sewing thread manufacturing process Nm 40/3 is basically the same as in embodiment 1.
  • a parallel multifilament 235 dtex nylon 6.6 thread, high tenacity, is pre-twisted with 530-560 turns per meter in the S direction on a multi-tier twisting machine (first twisting).
  • the best cotton quality (pile length) is used for cotton sewing thread bundles.
  • the spinning is carried out on three-cylinder cotton spinning machines.
  • the endless spun yarn is converted into cut stacks for the synthetic staple thread bundles.
  • a Nm 95 (Ne 56) cotton with 600-750 spins per meter in the S direction is spun on a cotton spinning machine (three-cylinder spinning machine).
  • Three spinning units are joined together with the endless connecting thread on a twist protection machine with 20 Z-turns per meter volume.
  • a unit is twisted on a Hamelz twisting machine to 600-700 turns per meter in the Z direction.
  • the gassing is e.g. B. on a Mettler gasification machine, heated with propane gas or electrically, with 550-700 meters deduction per minute.
  • connection process takes place with the cotton sewing thread bundle in an autoclave at 120 "C, with one or more vacuums, for 50-110 minutes on the gas spools.
  • Staple fiber (chopped fiber) sewing threads made of synthetic yarns correspond to the cotton sewing thread process with the necessary thermal and technical modifications.
  • the cotton sewing thread produced according to the connection of the individual sewing threads according to the invention, in any case requires a one-bath two-step dyeing, which is not necessary for the synthetic staple fiber sewing threads with the correct choice of thread (nylon or polyester).
  • a compound yarn titer depending on the desired final titer, is added to the first twisted core yarn (one or more times) during the spinning process.
  • the connector When twisting, the connector forms the "embedment” known as "soul” on ropes, which becomes more and more tightly wrapped as the number of turns increases and becomes more and more inaccessible from the outside.
  • the number of rotations must be so high that even during the thermal treatment of the thread bundle, in which the connector melts, no connector material can escape to the outside of the thread bundle outer surface.
  • Any thread made of spinnable plastic can be used as a connector or connecting thread, provided that it has a sufficient elongation at break of over 25%, e.g. B. between 30 and 50%, preferably between 35 and 40% and has a melting point which, depending on the application, is between 70 and 155 ° C.
  • Such a thread must also - at least under pressure - be able to form an adhesive connection with other textile threads.
  • These threads are threads made of a copolyamide which is derived from at least 3 unbranched and saturated randomly distributed monomer components forming polyamide.
  • the copolyamide has an average amide frequency of 1 -CONH- to 6.4-7.4 -CH 2 -, or 1 -CH 2 - to 0.156-0.135 -CONH-. It contains 10-60 mol% of each monomer component, based on the total molar approach of the sum of all monomer components. The sum of the mol% batches of all monomer components is equal to 100.
  • the threads made from this material have melting points below 155 ° C.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Ropes Or Cables (AREA)
  • Materials For Medical Uses (AREA)
  • Inert Electrodes (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Claims (22)

1. Faisceau de fil comportant au moins trois torons constitués de plusieurs fils et mutuellement liés par une masse liante informe en matière plastique, cette masse se trouvant essentiellement à l'intérieur du faisceau de fil et étant constituée d'un fil en matière plastique fondu, le faisceau de fil étant retordu dans son ensemble, caractérisé en ce que le fil en matière plastique formant la masse liante présente un point de fusion inférieur à 155°C et un allongement à la rupture supérieur à 25%, et en ce que dans la section transversale du faisceau, le pourtour est exclusivement défini par des fils sans une quelconque masse liante.
2. Faisceau de fil selon la revendication 1, caractérisé en ce que la masse liante est un copolyamide ou un copolyester.
3. Faisceau de fil selon la revendication 1, dans lequel le point de fusion de la masse liante se situe entre 70 et 155° C.
4. Faisceau de fil selon la revendication 1, caractérisé en ce que la masse liante est constituée par une matière thermoplastique.
5. Faisceau de fil selon la revendication 1, caractérisé en ce que la masse liante est un copolyamide, en particulier un copolyamide dérivé d'au moins trois composants monomères formant polyamide.
6. Faisceau de fil selon la revendication 1, dans lequel la masse liante est constituée par un copolyamide qui est dérivé d'au moins trois composants monomères formant polyamide, non ramifiés, saturés et distribués statistiquement, qui comporte une fréquence moyenne du groupement amide de 1 -CONH- pour 6,4-7,4 -CH2-, ou de 1 -CH2- pour 0,156-0,135 -CONH-, et dans lequel chaque composant monomère représente de 10 à 60% en moles par rapport à la quantité molaire totale de la somme de tous les composants monomères; la somme des quantités molaires en pourcentage de tous les composants monomères est égale à 100 et la masse liante présente un point de fusion inférieur à 155" C.
7. Faisceau de fil à coudre en fil naturel selon la revendication 1, dans lequel la masse liante présente un point de fusion entre 70 et 90° C.
8. Faisceau de fil à coudre en polyamide selon la revendication 1, dans lequel la masse liante présente un point de fusion entre 105 et 140° C.
9. Faisceau de fil à coudre en polyester selon la revendication 1, dans lequel la masse liante présente un point de fusion entre 140 et 155° C.
10. Faisceau de fil selon la revendication 1, caractérisé en ce que la proportion de la masse liante représente de 0,5 à 15% du titre final.
11. Faisceau de fil selon la revendication 1, caractérisé en ce que la masse liante relie les torons entre eux par collage.
12. Procédé pour fabriquer un faisceau de fil selon au moins l'une des revendications 1-11, caractérisé en ce qu'on retord des torons en tendant au moins trois et en y ajoutant un fil en matière plastique fusible qui est de ce fait soumis à une pression extérieure, de plus on soumet ce fil à un plus gros effort de traction que les torons afin d'entourer le fil au moyen des torons de façon à le protéger de la fuite et de l'érosion, et en ce qu'on soumet ce faisceau de fil à un traitement thermique entre 70 et 200°C pour l'embobiner par la suite en vue d'un traitement ultérieur.
13. Procédé selon la revendication 12, caractérisé en ce qu'on étire le faisceau de fil après le retordage.
14. Procédé selon la revendication 12, caractérisé en ce qu'on effectue le traitement thermique, de préférence avec au moins une mise sous vide intermédiaire, pendant au moins 30 minutes, par exemple entre 50 et 140 minutes, en particulier dans un autoclave, par exemple entre 70 et 155" C.
15. Procédé selon la revendication 12 ou 14, caractérisé en ce qu'on effectue le traitement thermique sur le faisceau de fil étiré, en particulier sur un faisceau de fil étiré jusque dans la région de la résistance à la traction maximale.
16. Procédé selon l'une quelconque des revendications 12 à 15, caractérisé en ce qu'on traite le faisceau de fil avec de la vapeur.
17. Procédé selon l'une quelconque des revendications 12 à 16, caractérisé en ce qu'on retord conjointement au moins trois torons et en ce qu'on embobine le faisceau de fil sous tension, par exemple entre 600-1100 g, pour le traitement thermique consécutif.
18. Procédé selon l'une quelconque des revendications 12 à 17, caractérisé en ce qu'on traite le faisceau de fil pendant 80-140 minutes à une température de 110-200" C, en particulier de 110-140°C, de préférence avec de la vapeur.
19. Procédé selon l'une quelconque des revendications 12 à 18, caractérisé en ce qu'on établit une ou plusieurs mises sous vide pendant le traitement.
20. Procédé selon l'une quelconque des revendications 12 à 19, caractérisé en ce que pendant l'embobinage du faisceau de fil et avant le traitement thermique, on étire le fil rotors avec une tension approchant sa tension d'étirage maximale.
21. Utilisation de faisceau de fil selon l'une quelconque des revendications 1 à 11 pour coudre, tisser ou tricoter.
22. Utilisation de faisceau de fil selon la revendication 21 pour produire des structures plates.
EP81109011A 1980-11-17 1981-10-27 Fil retors, procédé pour le fabriquer et son utilisation Expired EP0052268B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81109011T ATE12404T1 (de) 1980-11-17 1981-10-27 Zwirn und verfahren zu dessen herstellung sowie dessen verwendung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH849280A CH661634GA3 (fr) 1980-11-17 1980-11-17
CH8492/80 1980-11-17

Publications (2)

Publication Number Publication Date
EP0052268A1 EP0052268A1 (fr) 1982-05-26
EP0052268B1 true EP0052268B1 (fr) 1985-03-27

Family

ID=4341144

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81109011A Expired EP0052268B1 (fr) 1980-11-17 1981-10-27 Fil retors, procédé pour le fabriquer et son utilisation

Country Status (7)

Country Link
EP (1) EP0052268B1 (fr)
AT (1) ATE12404T1 (fr)
CH (1) CH661634GA3 (fr)
DE (2) DE3169587D1 (fr)
FI (1) FI70734C (fr)
FR (1) FR2494311B1 (fr)
IT (1) IT1145987B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993003213A1 (fr) * 1991-08-05 1993-02-18 J. & P. Coats, Limited Fils a coudre agglomeres interieurement et procedes de production de ceux-ci
US5366797A (en) * 1992-01-15 1994-11-22 Hoechst Aktiengesellschaft Bonded yarn bundle, and textile sheet materials obtainable therefrom
US8336474B2 (en) 2001-10-18 2012-12-25 Yugao Zhang Wrinkle free garment and method of manufacture

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5035111A (en) * 1987-10-02 1991-07-30 Stamicarbon B.V. Combinations of polymer filaments or yarns having a low coefficient of friction and filaments or yarns having a high coefficient of friction, and use thereof
DE4240335A1 (de) * 1992-12-01 1994-06-09 Spindor N V Bondiertes Fasermischgarn sowie daraus herstellbare gewebte oder gewirkte textile Flächengebilde
DE4321560A1 (de) * 1993-06-29 1995-01-12 Danubia Petrochem Deutschland Polyolefingarn und Gewebe
DE19961216A1 (de) * 1999-12-15 2001-06-28 Hempage Ag Bewehrungsmaterial, Verfahren zu seiner Herstellung und Anwendung des Bewehrungsmaterials
ITMO20070309A1 (it) * 2007-10-10 2009-04-11 G M Automation & Service Di Cl Prodotto tessile composito a due componenti e metodo di fabbricazione relativo.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2313058A (en) * 1941-07-17 1943-03-09 Sylvania Ind Corp Textile product and method of making the same
DE1222827B (de) * 1962-12-15 1966-08-11 Dietmar Mueller Ernst Verfahren zum Herstellen von Kerngarn
ZA72545B (en) * 1971-01-29 1972-10-25 Coats Ltd J & P Process for production of filamentary structures
CH628094A5 (de) * 1977-01-10 1982-02-15 Inventa Ag Faeden aus copolyamid, abgeleitet von mindestens 3 polyamid bildenden monomerkomponenten.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993003213A1 (fr) * 1991-08-05 1993-02-18 J. & P. Coats, Limited Fils a coudre agglomeres interieurement et procedes de production de ceux-ci
US5203939A (en) * 1991-08-05 1993-04-20 Coats Viyella, Plc Process for production of internally bonded sewing threads
US5366797A (en) * 1992-01-15 1994-11-22 Hoechst Aktiengesellschaft Bonded yarn bundle, and textile sheet materials obtainable therefrom
US8336474B2 (en) 2001-10-18 2012-12-25 Yugao Zhang Wrinkle free garment and method of manufacture

Also Published As

Publication number Publication date
CH661634GA3 (fr) 1987-08-14
FI70734B (fi) 1986-06-26
EP0052268A1 (fr) 1982-05-26
DE3142507A1 (de) 1982-06-24
FR2494311B1 (fr) 1985-12-20
IT1145987B (it) 1986-11-12
FI70734C (fi) 1986-10-06
IT8112676A0 (it) 1981-11-13
DE3169587D1 (en) 1985-05-02
ATE12404T1 (de) 1985-04-15
FR2494311A1 (fr) 1982-05-21
FI813529L (fi) 1982-05-18

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