EP0176937B1 - Verfahren zum Herstellen von Glattgarn - Google Patents

Verfahren zum Herstellen von Glattgarn Download PDF

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Publication number
EP0176937B1
EP0176937B1 EP85112120A EP85112120A EP0176937B1 EP 0176937 B1 EP0176937 B1 EP 0176937B1 EP 85112120 A EP85112120 A EP 85112120A EP 85112120 A EP85112120 A EP 85112120A EP 0176937 B1 EP0176937 B1 EP 0176937B1
Authority
EP
European Patent Office
Prior art keywords
thread
liquid
process according
godet
bundle
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
EP85112120A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0176937A2 (de
EP0176937A3 (en
Inventor
Karl-Heinz Erren
Hubert Damhorst
Hans-Joachim Petersen
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.)
Norddeutsche Faserwerke GmbH
Original Assignee
Norddeutsche Faserwerke GmbH
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 Norddeutsche Faserwerke GmbH filed Critical Norddeutsche Faserwerke GmbH
Priority to AT85112120T priority Critical patent/ATE53610T1/de
Publication of EP0176937A2 publication Critical patent/EP0176937A2/de
Publication of EP0176937A3 publication Critical patent/EP0176937A3/de
Application granted granted Critical
Publication of EP0176937B1 publication Critical patent/EP0176937B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/12—Stretch-spinning methods
    • D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins

Definitions

  • the invention relates to a method for producing plain yarn according to the preamble of claim 1.
  • Smooth yarns made from thermoplastic materials, especially polyester, polyamides, are spun as a large number of filaments.
  • the filaments are combined into a bundle of threads.
  • This smooth yarn obtains its usage properties, in particular its strength properties from stretching.
  • Smooth yarns, in contrast to textured yarns, are distinguished by the fact that their individual filaments lie parallel to one another and do not form loops, loops, arches or the like. Such flat yarns are referred to in the following as "thread”.
  • the filaments arriving from the spinning zone are combined as a bundle of threads and passed through a liquid band which is applied to an overflow surface.
  • the liquid is metered into an overflow surface in such an amount that the internal capacity of the thread bundle for this liquid is exceeded and the thread also receives a liquid coating on its outer surface.
  • the impregnation lies above the natural inner absorption capacity.
  • the internal absorption capacity is determined in particular by the molecular absorption capacity of the polymer for the liquid and by the absorption capacity based on capillary action between the individual filaments of the thread. With the densest arrangement of the filaments, the absorption capacity between the individual filaments of the thread bundle is already approximately 15% of the filament volume. According to the invention, the amount of liquid supplied is therefore at least 20%, preferably 25 to 35%, of the thread weight.
  • the liquid supplied to the liquid band can be heated to a temperature above 50 ° , in particular to a temperature between 70 ° and 90 °.
  • the supply of the liquid flow to the thread surface takes place, for. B. through nozzles that open on the surface of an overflow body in an upwardly open channel (see. For example. DE-GM 7 605 571).
  • the overflow bodies of such nozzles have a length of 30 to 40 mm.
  • the nozzle opens onto the overflow body fairly close to the thread inlet, the liquid on the overflow body is drawn out into a band which extends in the thread running direction and is narrowly limited in the transverse direction to the thread. This narrow limitation is further promoted if the overflow bodies have a thread groove in which the nozzle mouth lies.
  • rollers partially wrapped around the thread can also be used for the metered supply of a liquid stream if precautions are taken that the liquid does not pull out into a wide film on such a roller, but instead forms a laterally limited, in a metered amount of liquid band that is traversed by the thread.
  • a roller is e.g. B. known from DE-OS 2 908 404. Rolls that have thread running grooves over their circumference, into which a metered amount of liquid is fed, also meet the application purpose.
  • the liquid forms a narrow band of liquid through which the thread runs. For this reason, the liquid is not - as in the prior art - provided in a narrow tube, but is applied as a tape to a surface.
  • the thread should not be immersed in a static liquid bath as this does not allow a defined, uniform application of liquid.
  • the application of the liquid as a liquid band on a surface serves on the one hand the purpose of exerting sufficient adhesive forces on the liquid to prevent the liquid from dropping, i.e. H. is torn away by the thread in an uneven form.
  • this adhesion only acts on the liquid band on one side and does not prevent the liquid being "pulled out” from the thread and being pulled off the surface as a continuous band enveloping the thread due to the cohesive forces.
  • All low-viscosity, textile-technically compatible liquids can be used to carry out the invention.
  • a large number of these liquids have water as their main constituent. Pure water can also be used because of its good wetting ability.
  • the water should preferably not with the additions, e.g. B. oils that are usually used for the preparation or finishing of a thread.
  • these additives have a proportion of less than 5%, preferably less than 1% by weight.
  • a wetting agent can be added to promote the wettability of the water.
  • the proportion of the wetting agent in the water is less than 1%, preferably less than 0.5% by weight.
  • the wetting agent contributes in particular to the fact that the thread is soaked uniformly over its entire cross-section.
  • the use of pure water or of water which is provided with a small amount of wetting agents has the particular advantage over other oils, sizes, emulsions and the like used in textile technology that water is always available in a constant state and thus the process is reproducible without deviations.
  • Water also has the advantage of low viscosity, especially when heated. For this reason, liquids are preferably used whose viscosity is less than or equal to the viscosity of water or which have water as their main constituents, so that their dynamic properties are decisively determined by the water content.
  • the thread is drawn over a plurality of curved braking surfaces arranged one behind the other in the thread path with a changing direction of curvature.
  • the curvature of the braking surfaces means that the thread can be pulled over the braking surface while exerting a normal force. This normal force counteracts the hydrodynamic buoyancy forces and causes the liquid gap between the braking surface and the thread to remain small.
  • the shear rate and thus also the braking force that is exerted by the liquid on the thread depends on this gap width.
  • the radius of curvature is z. B. 10 mm. Radii of less than 10 mm and up to 50 mm have also proven to be satisfactory. Due to the curvature, the normal force of the thread directed onto the braking surface can be limited in such a way that the hydrodynamic forces arising at the respective thread speed ensure the "floating" of the thread, but on the other hand a small gap width of this liquid gap is retained.
  • the normal forces must therefore be so great that the hydrodynamic fluid gap remains so small that a large shear rate arises between the thread running at high speed and the stationary braking surface. It should also be noted that the thread is subjected to centrifugal acceleration when running over the curved braking surface, which tends to be counter to the normal force. On the other hand, the curvature must not be so great that the normal forces created by the tensile forces overcome the hydrodynamic lift of the thread and lead to sliding friction. Even mixed areas between fluid friction and sliding friction are undesirable since the frictional forces are undefined and consequently undefined tensile forces will also exert on the thread.
  • an oppositely curved braking surface which projects into the thread course and has a smaller radius of curvature and a shorter running surface between two braking surfaces of equal curvature. This braking surface then serves exclusively to redistribute the applied liquid, while the braking surfaces with a larger radius of curvature and a greater length serve to generate the desired braking force.
  • the braking surfaces are preferably arranged one below the other in the thread path, the deviation of the thread path from the vertical between two braking surfaces being not more than 70 ° and preferably also not more than 60 ° . This ensures that liquid from the thread in the Sprayed around the braking surface, sprayed in the direction of the next braking surface and therefore came back to a large extent on the thread.
  • a series of braking surfaces in a row shows that fluid friction between the thread and braking surfaces can be maintained until the end. This is due to the fact that the wraps are relatively small, so that only relatively small amounts of water spray and the amount of water remaining on the thread is sufficient to envelop the surface of the thread and to fill the spaces between the filaments.
  • the previously common dry friction is replaced by hydrodynamic friction in a narrow gap.
  • the thread To achieve fluid friction, the thread must run towards the braking surfaces at a certain minimum speed. This minimum speed is approx. 1000 m / min. However, higher speeds are preferred, preferably at least 1800 m / min. If the speed of the thread when it hits the first braking surface is at least 2500 m / min, the thread already gets a higher pre-orientation before it hits the braking surface. This makes the process less sensitive to setting the process parameters.
  • the total length of the braking surface required to exert the stretching force must be determined by experiment. Brake surface lengths of more than 200 mm have proven to be superfluous.
  • the length of the braking surfaces is mainly based on the specified thread speeds in front of and behind the braking surfaces, i. H. adapted to the desired thread tension and stretching.
  • the length of the entire braking surface overrun by the thread can be largely adjusted with the loop.
  • the immersion depth is set with which the oppositely curved braking surfaces are immersed in the thread course.
  • the wrap is small according to the invention and is preferably not more than 70 °, in particular less than 60 ° on the first and last braking surface and preferably not more than 140 ° , in particular less than 120 ° on the braking surfaces in between.
  • the total length of the braking surfaces can also be adjusted according to the requirements by arranging a corresponding number of such braking surfaces, which the thread traverses with a changing wrap direction, without any significant space requirement.
  • the setting of the thread tension between the braking surfaces and the godet unit is essential for the production of a high quality smooth yarn.
  • Quality parameters which correspond to the yarn quality of yarns produced on draw twisting machines can be achieved according to claim 4, by setting the thread tension by adjusting the braking force and the speed of the godet unit between 0.5 and 2 cN / dtex, preferably between 0.7 and 1.5 cN / dtex is set.
  • the braking surfaces can have a running groove to fix the thread running.
  • the braking surfaces may only touch the thread or the liquid layer surrounding it on one side, i. H. not include. Otherwise undefined system conditions arise, with the result that undefined changing braking forces are also exerted on the thread. Therefore, narrow pipes, the z. B. are shown in US-PS 3,002,804, unsuitable as contact surfaces, even if they were curved in the thread running direction, quite apart from the operational disadvantages of such tubes.
  • the temperature of the liquid fed to the thread also makes an important contribution to the production of high-quality threads.
  • the deformation work performed during stretching is converted into heat. Depending on the speed of stretching, this heat leads to a more or less strong temperature increase.
  • the amounts of heat released lead to temperatures that are no longer technologically acceptable.
  • the liquid supplied to the thread before the overflow via the braking surface is heated.
  • the temperature corresponds approximately to the temperature of the glass transition and is above 50 ° C.
  • the heating is particularly effective when the temperature is above 70 ° C., while at 100 ° C. there is a limit to the evaporation that then occurs.
  • the excellent uniformity of the thread quality must be attributed to the fact that the temperature fluctuations of the thread over its cross section and over its length can also be limited in time to a narrow, physically optimal range by the temperature of the liquid. This fluctuation range lies between the current liquid temperature and the evaporation temperature of the liquid.
  • the safety of the method, particularly in the production of threads with textile titers, is increased if - as is further proposed - the thread coming from the spinneret is still guided through the liquid band while it is hot.
  • the cooling conditions are predetermined so that the thread temperature in the area of the glass conversion point lies.
  • the intensity of the air blowing, the length of the air blowing, the distance of the liquid band from the spinneret, and the spin titer of the filaments are particularly important for these cooling conditions. It has been shown that a measure can also be seen here by which the thread break numbers can be drastically reduced and the thread uniformity can be significantly improved.
  • the amount of heat transported by the thread is large enough to heat the amount of liquid applied to the thread very quickly up to the specified temperature range.
  • This temperature range essentially corresponds to the first order glass transition point of the polyesters or polyamides.
  • a further drastic improvement in the thread quality, in particular with regard to its strength and shrinkage properties, is obtained by heating the thread behind the contact surfaces once again, namely in a tried and tested embodiment the conveyor is designed as a heated godet.
  • the godet temperature is regulated to 80 to 160 ° C depending on the polymer.
  • a temperature of approx. 140 ° C ⁇ 20 ° C has proven advantageous for polyester and approx. 100 ° C ⁇ 20 ° C for polyamide.
  • the bundle of threads is further provided with a customary spin finish, which in particular consists of water-oil emulsions. This also increases the security of the method.
  • the liquid is applied as an axially extending, relatively thin film to the individual filaments running side by side.
  • this type of liquid application it is not possible to provide the individual filaments and the bundle of threads with a liquid coating, which lead to hydrodynamic friction on the subsequent brake pins.
  • the invention is based on the new knowledge, which is not pre-drawn by the prior art, that by building up a hydrodynamic gap friction in the drawing zone, smooth yarns can be produced which are far superior in quality to the smooth yarns usually produced on draw twisting machines, even in continuous operation where the occurrence of fluff is 10: 1 lower than with comparable yarns of the same titre and the same number of filaments, for which the so-called yarn uniformity is significantly improved and which are also cheaper because of the lower investment costs and higher productivity . It is also noteworthy that, on the other hand, there is no wear on the braking surfaces and even grinding marks are not visible.
  • the water application nozzle 6 has a thread channel which is curved both in the thread running direction and transversely thereto, in the bottom of which a water supply channel opens.
  • the mouth of the water supply channel is as close as possible to the thread inlet.
  • the radius of curvature of the curvature in the thread running direction is 40 mm.
  • the radius of curvature across the thread is 10 mm. This curvature ensures that the filaments are combined into a bundle of threads when they reach the area of the opening water supply channel.
  • the thread is guided behind the water application nozzle 6 over the three parallel, cylindrical braking surfaces 9, 10, 11.
  • the thread between the braking surfaces 9, 10 is guided in a zigzag by the braking surface 11 serving as the deflecting surface.
  • the braking surface 11 can be moved perpendicularly to the yarn path, it can plunge to different depths in the common tagential plane of the braking surfaces 9. As a result, the wrap angle and thus the contact length on each braking surface 9 to 11 can be set as desired.
  • the braking surfaces have a radius of curvature of 10 mm.
  • the wrap angle should not be so great for reasons of water balance in the running thread that the thread is deflected by more than 60 ° from its vertical running direction.
  • the braking surfaces are arranged vertically one below the other and the deflection surfaces are only offset from the vertical thread path at a predetermined angle, it is achieved that water spraying and dripping is fed back to the thread or the braking or deflection surfaces.
  • one or more further braking surfaces can be added to extend the braking surfaces.
  • the box 5 has an outlet 18 through which the draining liquid can be collected and possibly returned to the process.
  • the thread coming from the contact surfaces receives its spin finish from the application roller 16 as a preparation before it is drawn off from the heated godet 7.
  • the application of the spin finish can also be done inside the box 5 and z. B. done by an application nozzle which corresponds essentially to the water application nozzle 6.
  • the spin finish can also be applied behind the godet 7. This has the advantage that the thread runs more smoothly on the godet and the surface - especially at temperatures above 100 ° C - is less contaminated by residues. This makes the process "safer” and improves the uniformity of the thread.
  • the thread is then wound up.
  • the winding spindle is denoted by 13, the bobbin by 14, the traversing device by 12 and the input thread guide from which the thread runs to the traversing device by 15. 17 indicates a so-called tangle nozzle through which the individual filaments are intertwined in individual knots.
  • the winding can be replaced by another type of thread storage, in particular by storing it in cans. Between the godet and the storage further devices for modifying the thread can be arranged such. B. a spun fiber cutter. It is also possible to subject the smooth yarn produced to texturing before storage, e.g. B. by superheated steam crimping the filaments.
  • the plain yarn produced is, however, ready for use even without such switched-on intermediate stages as a "stretch yarn".
  • a polyester thread 90f30 is thus spun, the godet 19 having a take-off speed of 4000 m / min.
  • the thread is first cooled in the cooling shaft and drop shaft 4 to approx. 90 ° C.
  • the Wasser Huaweisdüse 6 is supplied water, which is heated to 80 ° C.
  • the amount of water is adjusted so that the natural water absorption capacity of the thread is exceeded.
  • the flowing amount of water is 30% of the thread weight.
  • the braking surfaces 9, 10 are run over by adjusting the immersion depth of the deflecting surface 11 with a wrap angle of 35 ° , the deflecting surface 11 with a wrap angle of 70 ° .
  • the total overflow length between the thread and braking surfaces is set to approx. 25 mm.
  • This length can be influenced by adjusting the immersion depth.
  • the subsequent godet 19 was heated to 120 ° C.
  • a conventional spin finish was previously applied by roller 16.
  • the winding device was operated in such a way that a coil with a gradual precision winding was created. With precision winding, the traversing speed is reduced proportionally with the spindle speed. The spindle speed decreases because the coil is driven at a constant surface speed. In the case of a step precision winding, however, the traversing speed is again increased from time to time essentially to its initial value. It has been shown to be particularly advantageous that this increase in the traversing speed had a hardly measurable influence on the thread tension in the traversing triangle. If, on the other hand, the heating of the godet 19 was switched off, very strong thread tension fluctuations occurred when the traversing speed was increased. The heating of the godet thus proves to be an excellent means of building up bobbins with uniform thread tension and hardness and to maintain the excellent properties of the thread achieved by the method according to the invention even when winding and on the bobbin.
  • the 6 threads then ran side by side over the braking and deflecting surfaces with wrap angles of 35 ° on the braking surfaces 9 and 10 and 70 ° on the deflecting surface 11.
  • a stretching tension of 90 cN per thread was set and the threads were drawn off by godet 7 at a speed of 4507 m / min.
  • the Ga lette 7 had a temperature of 145 ° C; each thread wrapped around godet and idler 8 times.
  • the roll 16 was arranged after the godet 7, through which a customary spin finish was applied to the threads; thereafter the filaments of each thread were swirled in the tangled nozzle 17 and intertwined.
  • the 6 threads were finally wound up separately at a winding speed of 4463 m / min.
  • the polyester threads 76f24 obtained had a strength of 40 cN / tex, an elongation of 22.5%, cooking shrinkage 5.6% and uster (normal) 0.9%. They had 21 swirl points per meter and a fat coverage of 0.72%.
  • the godet 7 had a temperature of 100 ° C. and pulled the threads at a speed of 3917 m / min, each thread looping the godet and the idler roller twice. The winding took place at a speed of 3799 m / min.
  • the threads 44f10 obtained had a strength of 45 cN / tex, an elongation of 40%, cooking shrinkage 14.0% and Uster (normal) 0.8%. They had 19 swirl points per meter and 0.78% fat coverage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Woven Fabrics (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
EP85112120A 1984-09-27 1985-09-25 Verfahren zum Herstellen von Glattgarn Expired - Lifetime EP0176937B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85112120T ATE53610T1 (de) 1984-09-27 1985-09-25 Verfahren zum herstellen von glattgarn.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3435474 1984-09-27
DE3435474 1984-09-27

Publications (3)

Publication Number Publication Date
EP0176937A2 EP0176937A2 (de) 1986-04-09
EP0176937A3 EP0176937A3 (en) 1988-03-23
EP0176937B1 true EP0176937B1 (de) 1990-06-13

Family

ID=6246503

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85112120A Expired - Lifetime EP0176937B1 (de) 1984-09-27 1985-09-25 Verfahren zum Herstellen von Glattgarn

Country Status (20)

Country Link
US (1) US4731218A (fi)
EP (1) EP0176937B1 (fi)
JP (1) JP2523476B2 (fi)
AT (1) ATE53610T1 (fi)
AU (1) AU576000B2 (fi)
BR (1) BR8504766A (fi)
CA (1) CA1264004A (fi)
DE (1) DE3578191D1 (fi)
DK (1) DK166329C (fi)
ES (1) ES8607429A1 (fi)
FI (1) FI78740C (fi)
GR (1) GR852296B (fi)
IE (1) IE56948B1 (fi)
IL (1) IL76584A0 (fi)
IN (1) IN166291B (fi)
MX (1) MX162423A (fi)
NO (1) NO853791L (fi)
PT (1) PT81200B (fi)
TR (1) TR23246A (fi)
ZA (1) ZA857504B (fi)

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DE3609209A1 (de) * 1986-03-19 1987-09-24 Akzo Gmbh Verfahren zur herstellung schmelzgesponnener und molekularorientierend verstreckter, kristalliner filamente
DE3729062A1 (de) * 1987-08-31 1989-03-09 Hoechst Ag Verfahren zur herstellung praeparationsfreier verstreckter fasern
EP0344649B1 (en) * 1988-06-01 1994-01-12 Barmag Ag Method and apparatus for processing a textured yarn
DE59002052D1 (de) * 1989-02-24 1993-09-02 Rieter Ag Maschf Streckkammer.
EP0408994A1 (de) * 1989-07-10 1991-01-23 Rhône-Poulenc Viscosuisse SA Verfahren zur Herstellung von textilen Glattgarnen
CA2049989A1 (en) * 1990-02-05 1991-08-06 Klaus Fischer Process and device for the high-speed spinning of monofilaments, and monofilaments thus manufactured
DE59104851D1 (de) * 1990-07-27 1995-04-13 Rieter Ag Maschf Flüssigkeitsstreckanordnung mit veränderbarer Bremswirkung.
DE4236514C2 (de) * 1992-10-26 1997-03-27 Fischer Karl Ind Gmbh Verfahren und Vorrichtung zur Förderung und Ablage von Scharen endloser Fäden mittels Luftkräften
DE19620274C2 (de) * 1996-05-20 1999-05-06 Rhodia Acetow Ag Falschdrall-texturierte Garne und Verfahren zur Herstellung derselben
US6942106B1 (en) * 2000-05-11 2005-09-13 Ahmad Omar Wound polypropylene yarn filter cartridge and method for making same
US20040198118A1 (en) * 2002-12-16 2004-10-07 Levine Mark J. Hydroentangling using a fabric having flat filaments
CN103025928B (zh) * 2010-07-28 2015-05-20 欧瑞康纺织有限及两合公司 用于熔纺、牵伸和卷绕多根复丝丝线的设备
DE112015004743A5 (de) * 2014-10-18 2017-06-29 Oerlikon Textile Gmbh & Co. Kg Verfahren und Vorrichtung zur Herstellung eines multifilen Fadens aus einer Polyamidschmelze
DE102021003390A1 (de) * 2021-07-01 2023-01-05 Oerlikon Textile Gmbh & Co. Kg Vorrichtung zur Behandlung von zumindest einen multifilen Faden

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US3002804A (en) * 1958-11-28 1961-10-03 Du Pont Process of melt spinning and stretching filaments by passing them through liquid drag bath
US3101990A (en) * 1960-10-13 1963-08-27 Du Pont Process of drawing filamentary structures
BE632713A (fi) * 1962-05-23
GB1039014A (en) * 1964-06-25 1966-08-17 Ici Ltd Drawing synthetic thermoplastic yarn
US3407784A (en) * 1967-10-03 1968-10-29 Du Pont Apparatus for applying finishing to yarns
GB1311280A (en) * 1969-10-10 1973-03-28 Ici Ltd Yarn drawing apparatus
DE1959034B2 (de) * 1969-11-25 1976-08-19 Barmag Barmer Maschinenfabrik Ag, 5600 Wuppertal Anlage zum kontinuierlichen herstellen und aufwickeln von endlosen synethetischen faeden
NL7000713A (fi) * 1969-12-04 1971-06-08
US3899562A (en) * 1970-04-15 1975-08-12 Vickers Zimmer Ag Process for the production of mixed yarns
JPS50116743A (fi) * 1974-02-26 1975-09-12
AR207365A1 (es) * 1974-06-25 1976-09-30 Monsanto Co Hilado de nylon 66 con alto modulo en rotura bajo modulo en elongacion de 10% indice en tension positivo y uniformidad de denier una bobina que tiene devanado sobre la misma el hilado y un procedimiento para la hilatura en estado de fusion de nylon 66
JPS578976B2 (fi) * 1974-08-20 1982-02-19
DE7605571U1 (de) * 1976-02-25 1976-12-09 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid-Lennep Praeparationsfadenfuehrer
BR7805878A (pt) * 1977-09-12 1979-04-24 Du Pont Fio plano e estopa contendo filamentos continuos de poli(etileno-tereftalato),fio plano de poliester e estopa de poli-ester contendo filamentos continuos de poli(etileno-tereftalato)e fibra textil de poli(etileno-tereftalato)
DE2908404C2 (de) * 1979-03-03 1985-10-31 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Auftragswalze zum Auftragen von Flüssigkeiten auf laufende Fäden
US4301102A (en) * 1979-07-16 1981-11-17 E. I. Du Pont De Nemours And Company Self-crimping polyamide fibers
US4293518A (en) * 1980-07-31 1981-10-06 E. I. Du Pont De Nemours And Company Control of synthetic yarns during drawing with heated rolls
US4444710A (en) * 1982-02-19 1984-04-24 E. I. Du Pont De Nemours And Company Process for increasing void volume of hollow filaments

Also Published As

Publication number Publication date
GR852296B (fi) 1986-01-20
PT81200B (pt) 1987-09-30
DE3578191D1 (de) 1990-07-19
ATE53610T1 (de) 1990-06-15
MX162423A (es) 1991-05-10
ES8607429A1 (es) 1986-06-16
DK166329C (da) 1993-08-23
IN166291B (fi) 1990-04-07
EP0176937A2 (de) 1986-04-09
JPS6183312A (ja) 1986-04-26
AU576000B2 (en) 1988-08-11
FI853713A0 (fi) 1985-09-26
CA1264004A (en) 1989-12-27
EP0176937A3 (en) 1988-03-23
DK166329B (da) 1993-04-05
ZA857504B (en) 1986-05-28
DK435885A (da) 1986-03-28
JP2523476B2 (ja) 1996-08-07
TR23246A (tr) 1989-07-21
NO853791L (no) 1986-04-01
US4731218A (en) 1988-03-15
DK435885D0 (da) 1985-09-26
FI78740B (fi) 1989-05-31
AU4788685A (en) 1986-05-08
ES547282A0 (es) 1986-06-16
PT81200A (de) 1985-10-01
FI853713L (fi) 1986-03-28
FI78740C (fi) 1989-09-11
IE56948B1 (en) 1992-02-12
BR8504766A (pt) 1986-07-22
IE852375L (en) 1986-03-27
IL76584A0 (en) 1986-02-28

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