EP0052268A1 - 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
EP0052268A1
EP0052268A1 EP81109011A EP81109011A EP0052268A1 EP 0052268 A1 EP0052268 A1 EP 0052268A1 EP 81109011 A EP81109011 A EP 81109011A EP 81109011 A EP81109011 A EP 81109011A EP 0052268 A1 EP0052268 A1 EP 0052268A1
Authority
EP
European Patent Office
Prior art keywords
thread
binding
sewing
threads
melting point
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
EP81109011A
Other languages
German (de)
English (en)
Other versions
EP0052268B1 (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
Zwicky & Co 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 Zwicky & Co, Zwicky & Co AG filed Critical Zwicky & Co
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 thread with at least one binding thread made of nozzle-spinnable plastic, as well as a method for its production and the use of threads in weaving, knitting and knitting.
  • a single thread is produced with a multifilament (multi-fibrillated) thread in the S direction with specific twists per meter, depending on the material type and Titer.
  • Two or more continuous yarns pre-twisted in the S direction are now twisted together in the Z direction, with the appropriate twists per meter, according to the titer and the number of twist components. This is done on a specialist twisting machine, but can also be carried out according to a previous specialist process, on multi-tier or double wire twisting machines.
  • the sewing thread is wound onto a fixation drum with a certain tension (stretching), depending on the 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 Adjust the temperature and the treatment time according to the titer, the type of material and the deduction.
  • the stretching and the thermofixation ensure that the chain-shaped fiber building blocks are oriented in the longitudinal direction of the twisted yarns. Depending on the type of treatment, this also affects the final strength, the final shrinkage, the final elongation and the color affinity of the sewing thread, in addition to the thread calming.
  • 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 staple fiber sewing threads are subjected to a gassing process (burning off the above fibers) after the finished twist production.
  • one or more multifilament or monofilament yarns are spun with natural or synthetic staple spun.
  • the conventional ring spinning machine serves as the production machine.
  • the core yarns e.g. made of cotton and the core made of polyester, so the stretch-thermal fixation of the core yarn has to take place before spinning.
  • twisting back pessation leads to unpleasant side effects especially with continuous sewing threads made of polyamide and polyester.
  • the twisting is subjected to so much pressure that a backlog of twine is unavoidable. This leads to wrinkles in the sewing thread, ultimately to the formation of nodules, which inevitably leads to needle breakage, defective needle plate and finally to rejects.
  • nubs in all known staple fiber and spun 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 is 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.
  • the cause is a result of the insufficient connection between the individual components of the thread.
  • a method for producing a thread bundle made of thermoplastic material is known, the threads of the thread bundle being arranged next to one another and at least one binding thread made of thermoplastic material being provided under the threads, the thread bundle being treated at elevated temperature, so that the binding thread melts and fills the spaces between the threads 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 yarns are therefore e.g. unusable for sewing purposes.
  • such structures are wire-like and therefore completely inflexible (DE-AS 2 204 119).
  • thermoplastic yarn is wound or. is twisted This yarn thus remains in the center of the thread bundle in a straight line as a supporting component.
  • the present invention aims to create a thread with an optimal, permanent connection between the individual thread components, without impairing the flexibility of the finished thread.
  • the thread according to the invention fulfills these conditions, which is distinguished by the fact that the binding thread has a melting point below 155 ° C. and an elongation at break of more than 25%, and that it bonds with the individual thread components at least under pressure.
  • the threads produced by "Emser-Werke” are used as connectors or connecting threads between the twist components.
  • Such threads consist of a copolyamide derived from at least 3 polyamide-forming monomer components, as is e.g. in U.S. Patent No. 4,225,699 is described in detail.
  • the input tensions in a double-thread conveyor 7 for the 550 dtex yarns May 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 depending on the final titer, is a multifilament or monofilament copolyamide or Copolyester thread, which makes up a share of 0.5 - 15% of the final titer, also twisted as a connector.
  • the final twist is then produced by winding three first twisting units AAB on a specialist twisting machine analogous to that according to FIG. 1 in the Z direction with 150-200 turns per meter to a finished twist C on a bobbin 8 (FIGS. 3, 4).
  • a finished twisting unit (FIG. 4) is rewound (stretched) on a fixation drum on a parallel stretch winder with a tension of 600-1,100 gr.
  • the sewing thread is formed on the fixation barrel in an autoclave at a steam temperature of 110 - 140 min treated with one or more Eisenvakua - 140 0 C during 80th
  • 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 yarn nylon 6.6, 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 threads.
  • 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.
  • the connecting yarns used for the connection are reworked from continuous yarns to cut staple fibers. It is important to ensure that the connecting stacks of cut are 30 - 40% shorter than the staple fibers to be connected (yarn character).
  • the staple fibers to be joined (cotton, polyester, etc.) are mixed homogeneously with the joining cut fibers in the ratio: 0.5 ⁇ 15% connecting fibers.
  • Cut staple fiber sewing thread process is in the finished twisting process, as described in embodiment 2 for the section finished yarn production, an endless connection yarn with the corresponding thermal properties, also twisted in the respective quantity ratio.
  • Three spinning units are assembled on a protection twist machine with 20 Z-turns per meter.
  • a unit is twisted on a Hamelz twisting machine to 600 - 700 turns per meter in the Z direction.
  • the gassing is e.g. on a Mettler gassing machine, heated with propane gas or electrically, with a discharge of 550 - 700 meters per minute.
  • the mercerization is advantageously dispensed with, since an increase in strength is achieved anyway by connecting the staple fibers.
  • connection process takes place with cotton sewing thread in an autoclave at 120 o C, with one or more vacuums, for 50 - 110 min on the gas spools.
  • Staple fiber (cut 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 thread components according to the invention, in any case requires a one-bath two-step dyeing, which is unnecessary for the synthetic staple fiber sewing threads with the right choice of thread (nylon or polyester).
  • the first possible procedure can be found in the section on staple thread.
  • 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.
  • connection process has to take place, which in the autoclave or. Electric oven, depending on the type of core yarn, is made under tension.
  • the connector When twisting, the connector forms the "inlay” that is known as “core” 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 twists must be so high that even during the thermal treatment of the thread, in which the connector melts, no connector material can escape to the outside of the thread surface.
  • connection cut stacks located on the yarn surface are washed away during the dyeing process.
  • Any thread made of spinnable plastic can be used as a connector or connecting thread, provided that it has sufficient elongation at break of over 25%, for example between 30 and 50%, preferably between 35 and 40% and has a melting point that , depending on the application, is between 70 and 155 0 C.
  • Such a thread must also - at least under pressure - be able to form an adhesive connection with other textile threads.
  • These yarns are threads made from 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 are equal to 100.
  • the threads made of this material have melting points below 155 ° C.
  • the advantages of the twists according to the invention in terms of sewing technology are the following, essential advantages:
  • the twisted products according to the invention can be produced on all conventional twist manufacturing devices without major changes to the equipment.

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)
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 true EP0052268A1 (fr) 1982-05-26
EP0052268B1 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) DE3142507A1 (fr)
FI (1) FI70734C (fr)
FR (1) FR2494311B1 (fr)
IT (1) IT1145987B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009047342A1 (fr) * 2007-10-10 2009-04-16 G.M. Automation & Service Di Claudio Gabrieli Produit textile composite à deux composants et son procédé de fabrication

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01156537A (ja) * 1987-10-02 1989-06-20 Stamicarbon Bv 低摩擦係数を有するポリマーフィラメントまたはヤーンと高摩擦係数を有するフィラメントまたはヤーンとの組合わせおよびその使用
US5203939A (en) * 1991-08-05 1993-04-20 Coats Viyella, Plc Process for production of internally bonded sewing threads
ATE153087T1 (de) * 1992-01-15 1997-05-15 Hoechst Ag Bondiertes fadenbündel, verfahren zu dessen herstellung und daraus erhältliche textile flächengebilde
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
CN1158950C (zh) 2001-10-18 2004-07-28 广东溢达纺织有限公司 衬衫缝骨的抗皱整理方法

Citations (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
FR2124919A5 (en) * 1971-01-29 1972-09-22 Coats J Et P Ltd Textile structure - formed by introducing thermoplastic yarn and heating to bond the other components
US4225699A (en) * 1977-01-10 1980-09-30 Inventa Ag Fur Forschung Und Patentverwertung, Zurich Ternary polyamide filaments

Patent Citations (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
FR2124919A5 (en) * 1971-01-29 1972-09-22 Coats J Et P Ltd Textile structure - formed by introducing thermoplastic yarn and heating to bond the other components
US4225699A (en) * 1977-01-10 1980-09-30 Inventa Ag Fur Forschung Und Patentverwertung, Zurich Ternary polyamide filaments

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009047342A1 (fr) * 2007-10-10 2009-04-16 G.M. Automation & Service Di Claudio Gabrieli Produit textile composite à deux composants et son procédé de fabrication

Also Published As

Publication number Publication date
IT8112676A0 (it) 1981-11-13
DE3169587D1 (en) 1985-05-02
FR2494311A1 (fr) 1982-05-21
EP0052268B1 (fr) 1985-03-27
CH661634GA3 (fr) 1987-08-14
ATE12404T1 (de) 1985-04-15
DE3142507A1 (de) 1982-06-24
FI813529L (fi) 1982-05-18
FI70734B (fi) 1986-06-26
FR2494311B1 (fr) 1985-12-20
FI70734C (fi) 1986-10-06
IT1145987B (it) 1986-11-12

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