EP2171138B1 - Procédé de filage - Google Patents

Procédé de filage Download PDF

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Publication number
EP2171138B1
EP2171138B1 EP08784791.9A EP08784791A EP2171138B1 EP 2171138 B1 EP2171138 B1 EP 2171138B1 EP 08784791 A EP08784791 A EP 08784791A EP 2171138 B1 EP2171138 B1 EP 2171138B1
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EP
European Patent Office
Prior art keywords
section
blowing
cooling zone
cooling medium
yarn
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EP08784791.9A
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German (de)
English (en)
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EP2171138A2 (fr
Inventor
Bastiaan Krins
Johannes Frederik Boer
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API Institute
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API Institute
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Publication of EP2171138A2 publication Critical patent/EP2171138A2/fr
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    • 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
    • D01D5/08—Melt spinning methods
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
    • D01D5/092—Cooling filaments, threads or the like, leaving the spinnerettes in shafts or chimneys
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters

Definitions

  • the present invention relates to a method of spinning a multifilament yarn of a thermoplastic material, comprising the steps of extruding the molten material through a plurality of nozzle holes of a spinneret into a multifilamentary filament bundle and wound up as a multifilament yarn after solidification, and wherein the Filament bundle is cooled below the spinneret.
  • the present invention relates to multifilament yarns, especially polyester multifilament yarns and cords containing such polyester filament yarns.
  • a method as described above is known from WO 2004/005594 known.
  • the filament bundle is cooled below the spinneret in two stages, the filament bundle is cooled below the spinneret in a first cooling zone first by means of a Queranblasung by a gaseous cooling medium and by means of a Queranblasung opposite suction of the gaseous cooling medium, and then in a second cooling zone below the first cooling zone, the filament bundle is substantially further cooled by Diansaugung located in the vicinity of the filament bundle gaseous cooling medium.
  • dimensional stability means the sum of the elongation of the yarn in% after application of a specific force of 410 mN / tex ("elongation at specific tension") EAST and hot air shrinkage ("hot air shrinkage”).
  • running behavior includes the number of lint per 10 kg of yarn and the number of yarn breaks per 1000 kg of yarn.
  • the object of the present invention is to provide a process by which a multifilament yarn can be spun from a thermoplastic material having a high total titer, a dimensional stability at least as good as the dimensional stability of those obtained by the process of WO 2004/005594 resulting yarns, and has an acceptable running behavior.
  • a method of spinning a multifilament yarn of a thermoplastic material comprising the steps of extruding the molten material through a spinneret into a multifilamentary filament bundle and wound up as a multifilament yarn after solidification, the spinneret having a plurality of nozzle holes and the ends of the holes at which the filaments emerge form a nozzle hole exit plane, and wherein the filament bundle beneath the spinneret is cooled in a first cooling zone first by at least one transverse blowing through a gaseous cooling medium and by means of a suction of the gaseous cooling medium opposite this transverse blowing , and then in a second Cooling zone below the first cooling zone, the filament bundle is further cooled by Diansaugung located in the vicinity of the filament bundle gaseous cooling medium, characterized in that in the first cooling zone, the at least one Queranblasung the gaseous cooling medium via a Anblasumble AC of length L, wherein the Anblasblaze AC an upper end facing
  • the inventive method improves the quality of the spinning process in comparison to in WO 2004/005594 described method in the form of a significantly reduced number of lint per 10 kg of yarn and also clearly smaller yarn breakage per 1000 kg of yarn with at least equally good dimensional stability.
  • the distance BD is subdivided into an open suction path BX of length L BX , via which the gaseous cooling medium is sucked off, and into a closed path XD of length L XD , wherein the ratio L BX : L XD is in the range of 0.15: 1 to 0.5: 1.
  • the ratio L BX : L XD is in the range of 0.15: 1 to 0.5: 1. At a ratio L BX : L XD which is smaller than 0.15: 1, the cooling effect exerted on the filaments is insufficient and it comes to the bonding of the filaments. At a ratio L BX : L XD , which is greater than 0.5: 1, no sufficiently stable running behavior is achieved.
  • the ratio L BX : L XD is in the range from 0.2: 1 to 0.4: 1, more preferably in the range from 0.25: 1 to 0.35: 1, and very particularly preferably in the range of 0.27: 1 to 0.33: 1.
  • L BX of the suction path BX and the absolute length of the closed path L XD of the closed path XD is - as long as the resulting ratio L BX : L XD in the range according to the invention - within wide ranges adjustable.
  • L BX has a length in the range of 5 cm to 50 cm and L XD has a length in the range of 20 cm to 150 cm.
  • the process according to the invention is particularly preferably carried out with values of L BX in the range from 10 cm to 25 cm and with values of L XD in the range from 35 cm to 75 cm.
  • the process according to the invention is most preferably carried out with values of L BX in the range from 12 cm to 21 cm and with values of L XD in the range from 49 cm to 58 cm.
  • the distance between A and B is parallel to the nozzle hole exit plane.
  • the Anblasumble AC forms an angle ⁇ and the suction line BX an angle ⁇ , wherein the amounts of ⁇ and ⁇ may be the same or different.
  • the Anblasumble AC to the imaginary distance AB at an angle ⁇ of 60 ° to 90 ° and the Absaugrank BX has the imaginary distance AB at an angle ⁇ of 60 ° to 90 °.
  • the Anblasumble AC to the imaginary line AB at an angle ⁇ of 90 ° and the suction line BX has the imaginary distance AB at an angle ⁇ of 90 °.
  • the Anblasorder AC to the imaginary distance AB at an angle ⁇ of 60 ° to ⁇ 90 ° and the suction line BX has the imaginary distance AB at an angle ⁇ of 90 °.
  • the angle ⁇ which the evacuation path BX forms to the imaginary distance AB
  • the angle ⁇ ' which the distance XD forms to the imaginary distance AB.
  • the method according to the invention is preferably carried out so that the angles ⁇ and ⁇ 'are the same.
  • the filament bundle in the first cooling zone is transversely blown through the gaseous cooling medium and cooled by means of a suction opposite the Queranblasung suction through the distance BX.
  • This can be done, for example, such that the filament bundle between the Anblasumble AC of length L and the suction line BX of length L BX is passed.
  • Another possibility is to divide the filament and, for example, set up in the middle between two filament streams in the first cooling zone An blowing line AC of length L, for example in the form of a perforated tube of length L.
  • the method according to the invention can also be carried out in such a way that a perforated tube extending in the middle of the filament streams acts as a suction path BX of length L BX and sucks the gaseous cooling medium, which is transversely blown across the Anblasumble AC of length L from outside to inside.
  • the flow velocity of the gaseous cooling medium in the first cooling zone is between 0.1 and 1 m / s. At these rates, there is a uniform cooling largely without turbulence and formation of skin / core differences in the crystallization.
  • the gaseous cooling medium before it is supplied to the at least one transverse blowing in the first cooling zone, is tempered by means of a first tempering device, i. cooled or heated.
  • a first tempering device i. cooled or heated.
  • the second stage of the cooling is carried out in the process according to the invention by means of self suction ("self suction yarn cooling").
  • self suction yarn cooling the filament bundle ruptures the gaseous cooling medium in its vicinity, e.g. Ambient air, with it and is thereby cooled further.
  • the gaseous cooling medium which runs substantially parallel to the direction of the filament bundle. It is important that the gaseous cooling medium approaches the filament bundle at least from two sides.
  • the self-priming unit is formed by two perforated materials that run parallel to the filament bundle, such as perforated plates.
  • the length of the plates is at least 10 cm and can be up to several meters at the top. Quite usual are lengths for this Organicansaugungspole of 30 cm to 150 cm, which are also suitable for the inventive method.
  • a preferred embodiment of the method according to the invention can be carried out, wherein in the second cooling zone the filament bundle is thus positioned between perforated materials, e.g. perforated plates, it is carried out that the gaseous cooling medium can hit the filaments by self-suction of the filaments of the filament bundle from two sides.
  • the filament bundle in the second cooling zone is passed through a perforated tube.
  • a perforated tube Such "self-suction tubes” are known in the art. They allow entrainment of the gaseous cooling medium by the filament bundle in a manner which largely avoids turbulence.
  • the second cooling zone may also be configured as a "self-suction zone" to form a well having a square or rectangular footprint, the walls of the well being formed from two opposed closed plates and two opposing porous plates.
  • the porosity of one plate P 1 may be the same or different from the porosity P 2 of the other plate.
  • the values of P 1 and P 2 are preferably in the range of 0.1 to 0.9, more preferably in the range of 0.2 to 0.85.
  • this element which is familiar to the person skilled in the art, is between 10 and 40 cm long.
  • the method according to the invention in the first cooling zone comprises at least one transverse blowing through a gaseous cooling medium.
  • the first cooling zone can not only have a first transverse blowing but also a second, third, etc. transverse blowing, these transverse blowing on the blowing line AC are arranged directly one after the other and have the length L in total.
  • each of these Queranblasonne be operated with a Anblasmenge of gaseous cooling medium, which is independently adjustable by the Anblasmengen of gaseous cooling medium, with which the respective other Queranblasache be operated.
  • each of these Queranblasonne can be operated with a temperature of the gaseous cooling medium, which is independently adjustable from the temperatures of the gaseous cooling media, with which the respective other Queranblasache operated.
  • the first cooling zone on the Anblasumble AC a first Queranblasung and an immediately adjoining second Queranblasung, wherein the first and second Queranblasung in sum have the length L, and wherein the first Queranblasung is operated at a temperature T 11 of the gaseous cooling medium and the second Queranblasung is operated at a temperature T 12 of the gaseous cooling medium , and wherein T 11 is different from T 12 .
  • the inventive method can also be carried out so that the filament bundle is further cooled in the second cooling zone by Disansaugung located in the vicinity of the filament bundle gaseous cooling medium, wherein the gaseous cooling medium is heated prior to entry into the second cooling zone.
  • a gaseous cooling medium is used to cool the filament bundle.
  • the process of the invention is preferably a continuous spin-draw take-up - Method ("spinning drawing winding process").
  • stretching is to be understood here as meaning all customary methods familiar to the person skilled in the art in order to distort the filaments. This can be done for example by godets, individually or in duos, or the like. It should be expressly mentioned that drawing refers both to draw ratios greater than 1 and to ratios which are less than 1. The latter ratios are familiar to those skilled in the art of relaxation. In the process according to the invention, draw ratios greater than and less than 1 can occur quite side by side.
  • the total draw ratio is usually calculated from the ratio of the draw speed to the filament spin speed, i. the speed at which the filament bundles leave the cooling zones and are fixed to the first godet pair of the drawing device.
  • a typical constellation is, for example, a spinning speed of 2760 m / min, a stretching speed of 6000 m / min, an additional relaxation following the stretching of 0.5%, i. a speed of the last godet of 5970 m / min. This results in a total draw ratio of 2.17.
  • speeds of at least 2000 m / min are preferred for winding, in particular of at least 2500 m / min.
  • speed of the process there are no limits to the speed of the process within the framework of the technically feasible.
  • about 8000 m / min, more preferably 6500 m / min is preferred for the upper speed range during winding.
  • the drafting devices upstream and behind the cooling zones can still be a known chute.
  • thermoplastic material to be used in the process according to the invention is preferably selected from a group comprising thermoplastic polymers, which group may contain polyester, polyamide, polyolefin or mixtures or copolymers of these polymers.
  • thermoplastic material used in the process according to the invention consists essentially of polyethylene terephthalate.
  • the angle ⁇ between the imaginary distance AB and the Anblasumble AC is 90 °.
  • the angle ⁇ between the imaginary distance AB and the distance BD is also 90 °.
  • the distance BD is subdivided into an open suction section BX of length L BX , via which the gaseous cooling medium is sucked off with a suction device II, and into a closed section XD of length L XD , wherein the ratio L BX : L XD is in the range of 0 , 15: 1 to 0.5: 1.
  • the second cooling zone is defined on the left by a perforated plate which forms a self-priming path CE of length L CE , via which the filament bundle 2 sucks gaseous cooling medium solely by its movement.
  • the second cooling zone is defined on the right by another perforated plate, which forms a self-priming path DF of length L DF , via which the filament bundle 2 also sucks gaseous cooling medium solely by its movement. The subsequent stretching and winding of the spun multifilament to the second cooling zone is not shown.
  • the upper limit of the total titre can in principle assume arbitrarily large values, as explained in the following:
  • the jet hole exit plane mentioned at the outset can be embodied as part of a spinneret plate which has a Has length and a width. By extending the spinneret plate in the width, it is in principle possible to spider arbitrarily large total titers by means of the method according to the invention.
  • an upper limit on the total denier of the polyester multifilament yarn which is in the range of 1800 dtex to 5000 dtex, and preferably in the range of 2000 dtex to 3600 dtex.
  • the polyester multifilament yarn has a breaking strength of more than 60 cN / tex, particularly preferably more than 65 cN / tex.
  • the number of lint is less than 500 per 10 kg of yarn, more preferably less than 250 per 10 kg of yarn.
  • the polyester multifilament yarn has a yarn breakage rate of less than 25 per 1000 kg of yarn, more preferably less than 10 per 1000 kg of yarn.
  • the polyester multifilament yarn according to the invention is preferably characterized in that the yarn has a breaking strength T in mN / tex and an elongation at break E in%, the product consisting of the breaking strength T and the third root of the breaking elongation E, T • E1 1/3 , at least 1600 mN% 1/3 / tex and preferably between 1600 and 1800 mN% 1/3 / tex.
  • the number of lint per 10 kg of yarn is determined with the ENKA Tecnica FR V.
  • the determination of the thread breaks per 1000 kg of yarn is done by counting.
  • the EAST is measured according to ASTM 885 and the HAS is also determined according to ASTM 885, with the proviso that the measurement is carried out at 180 ° C, at 5 mN / tex and over a measurement period of 2 minutes.
  • the o.g. Polyester multifilament yarn is particularly well suited for technical applications, especially for use in tire cord.
  • An undoped cord made of the polyester multifilament yarn of the present invention has a value of T • E 1/3 which is at least 1375 mN% 1/3 / tex, preferably up to 1800 mN% 1/3 / tex. Therefore, such an undipped cord is also part of the present invention.
  • the present invention includes a dipped cord comprising a polyester multifilament yarn produced by the process according to the invention, the cord having a retention capacity Rt after dipping and characterized by the quality factor Q f , ie the product of T • E 1/3 of the polyester multifilament yarn and Rt of the cord, is greater than 1350 mN% 1/3 / tex and preferably up to 1800 mN% 1/3 / tex.
  • the retention capacity is the dimensionless quotient of the breaking strength of the cord after dipping and the breaking strength of the threads.
  • the method is also well suited for the production of technical yarns.
  • the settings necessary for the spinning of technical yarns in particular the choice of the nozzle and the length of the heating tube, are known to the person skilled in the art.
  • Example 1 Preparation of polyethlene terephthalate multifilament yarns having a yarn count of 2220 dtex
  • the spun filament bundle first passes through a heating tube, then through the first cooling zone directly adjoining the heating tube and through the second cooling zone directly adjoining the first cooling zone.
  • the first cooling zone on a Anblasumble which is divided into a first Queranblasung and immediately thereafter in a second Queranblasung, by means of which the filament bundle is transversely blown with air of different temperature and flow velocity.
  • the first Queranblasung opposite and immediately after the heating tube is an open suction of certain length, through which the cross-blown air is sucked off with a certain suction. Immediately after the suction line follows a closed route of certain length.
  • the second cooling zone follows, which is formed by a shaft comprising two opposing porous plates with different porosity, one plate below the Anblasstracke the first cooling zone and the second plate below the suction of the first cooling zone is arranged.
  • the filament bundle is cooled by the air which it sucks as a result of its movement through the porous plates. Table 1 summarizes the spinning and cooling conditions.
  • the multifilament is bundled and passed through a tube in a drawing device, whereby the multifilament is stretched and wound with the draw ratios shown in Table 2 at a drawing speed of 6000 m / min, whereby one-piece produced polyethlene terephthalate multifilament with a Yarn titer of 2200 dtex, whose lint and breaking strengths, T • E 1/3 values and dimensional stabilities Ds are also listed in Table 2 (see yarns Nos. 1-8).
  • Table 2 Draw ratios, draw speeds V ⁇ s>, break strengths T, T • E ⁇ sup> 1/3 ⁇ / sup> values, flow numbers and Ds of the polyethylene terephthalate of the present invention
  • the comparison of the lint numbers of the yarns 1-6 produced according to the invention with the lint numbers of the comparative yarns V1-V6 shows that the process according to the invention leads to yarns having a significantly smaller number of lintens and thus to a considerable amount improved running behavior of the multifilament leads.
  • the reduction of the number of lint in this example is between 7% (compare yarn 1 with comparative yarn V1) and 86% (compare yarn 5 with comparison yarn V5).
  • the dimensional stability Ds of the yarns produced according to the invention is at most 11.0% and, under otherwise identical conditions, is equal to or even better than Ds of comparative yarns V1-V6.
  • the yarns 7 and 8 produced according to the invention show that it is possible with the process according to the invention to produce yarns having a yarn denier of 2200 dtex, high strength and a number of lint, which permits continuous spinning.
  • the attempt to set a draw ratio of 2.150 under the conditions of the comparative example at a stretching speed of 6000 m / min leads to such an intensive bonding of the filaments that continuous spinning is impossible. This applies first of all to the attempt to set a stretch ratio of 2.175 under the conditions mentioned.
  • the yarns 6 and 8 produced according to the invention show that the process according to the invention makes it possible, when a suitable draw ratio is selected, to bring the T • E 1/3 values into the preferred range of at least 1600 mN% 1/3 / tex.
  • Example 2 Preparation of polyethlene terephthalate multifilament yarns having a yarn denier of 1670 dtex
  • the spun filament bundles pass through a heating tube as in Example 1, then through the immediately following first cooling zone and through the immediately following second cooling zone.
  • Table 3 summarizes the spinning and cooling conditions, the spinning and cooling parameters having the same meaning as in Example 1.
  • the multifilament is bundled and passed through a tube in a drawing device, whereby the multifilament is stretched and wound with the draw ratios shown in Table 4 at a drawing speed of 6000 m / min, whereby one-piece produced Polyethlenterephthalat-Multifilamentgarne with a Yarn titer of 1670 dtex, whose lint and breaking strengths, T • E 1/3 values and dimensional stabilities Ds are also listed in Table 4 (see yarns Nos. 1-9).
  • Table 4 Draw ratios, draw speeds V ⁇ s>, break strengths T, T • E ⁇ sup> 1/3 ⁇ / sup> values, flow numbers and Ds of the polyethylene terephthalate of the present invention Multi-filament yarns Nos. 1-9 and comparative polyethylene terephthalate multifilament yarns Nos. V1-V9 Example 2 Yarn no.
  • V1 V2 V3 V4 V5 V6 V7 V8 V9 draw ratio 2,000 2.025 2,050 2,075 2,100 2,125 2,150 2,175 2,200 v s [m / min] 6000 6000 6000 6000 6000 T [mN / tex] 620 628 640 657 635 667 677 681 687 T • E 1/3 [mN% 1/3 / tex] 1597 1582 1591 1630 1535 1608 1620 1607 1568 fluff 41 32 18 32 41 48 174 877 363 Ds [%] 10.6 10.5 10.5 10.4 10.9 10.8 10.9 10.9 10.9
  • Example 3 Preparation of polyethlene terephthalate multifilament yarns having a denier of 1440 dtex
  • the spun filament bundles pass through a heating tube as in Example 1, then through the immediately following first cooling zone and through the immediately following second cooling zone.
  • Table 5 summarizes the spinning and cooling conditions, the spinning and cooling parameters having the same meaning as in Example 1.
  • the multifilament is bundled and passed through a tube in a drawing device, whereby the multifilament is stretched and wound with the draw ratios shown in Table 6 at a drawing speed of 6000 m / min, whereby one-piece produced polyethlenterephthalate multifilament with a Yarn titer of 1440 dtex, whose lint and breaking strengths, T • E 1/3 values and dimensional stabilities Ds are also listed in Table 6 (see yarns Nos. 1-9).
  • Table 6 ⁇ / b> stretch ratios, draw speeds v ⁇ s>, breaking strengths T, T • E ⁇ sup> 1/3 ⁇ / sup> values, flow numbers and Ds of the polyethylene terephthalate of the present invention Multi-filament yarns Nos. 1-9 and comparative polyethylene terephthalate multifilament yarns Nos. V1-V9 Example 3 Yarn no.
  • V1 V2 V3 V4 V5 V6 V7 V8 V9 draw ratio 2,000 2.025 2,050 2,075 2,100 2,125 2,150 2,175 2,200 v s [m / min] 6000 6000 6000 6000 6000 T [mN / tex] 635 645 659 662 666 670 691 699 701 T • E 1/3 [mN% 1/3 / tex] 1620 1578 1659 1868 1629 1622 1654 1688 1674 fluff 15 14 53 41 67 32 78 315 212 Ds [%] 10.7 10.7 10.6 11.0 10.8 11.1 11.1 10.9 10.8

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Artificial Filaments (AREA)

Claims (29)

  1. Procédé de filage d'un fil du type multifilament constitué d'un matériau thermoplastique, comportant les opérations dans lesquelles le matériau amené à l'état fondu est extrudé dans une buse de filage pour former un faisceau de filaments comportant de nombreux filaments et est enroulé après solidification en tant que fil du type multifilament, la buse de filage présentant un grand nombre de trous de buse et les extrémités des trous par lesquels sortent les filaments formant un plan de sortie de trous de buse, et le faisceau de filaments étant d'abord refroidi en-dessous de la buse de filage dans une première zone de refroidissement au moyen d'au moins un soufflage transversal en utilisant un fluide de refroidissement gazeux et au moyen d'une aspiration du fluide de refroidissement gazeux disposée en face de ce soufflage transversal, et ensuite le faisceau de filaments étant ensuite davantage refroidi dans une deuxième zone de refroidissement située en-dessous de la première zone de refroidissement, par auto-aspiration de fluide de refroidissement gazeux se trouvant dans l'environnement du faisceau de filaments, caractérisé en ce que dans la première zone de refroidissement, le soufflage transversal, au minimum unique, du fluide de refroidissement gazeux est effectué sur un parcours de soufflage AC de longueur L, le parcours de soufflage AC présentant une partie initiale supérieure A orientée vers les trous de buse et une partie d'extrémité inférieure C orientée à l'écart des trous de buse, et en ce qu'en face du parcours de soufflage AC est disposé un parcours BD qui présente une partie initiale B orientée vers les trous de buse et une extrémité D orientée à l'écart des trous de buse et en ce que le parcours imaginaire AB entre A et B s'étend parallèlement au plan de sortie des trous de buse, le parcours BD ayant la longueur L et le parcours BD étant subdivisé en un parcours d'aspiration ouvert BX de longueur LBX, le rapport LBX/LXD se situant dans la zone comprise entre 0,15/1 et 0,5/1.
  2. Procédé selon la revendication 1 caractérisé en ce que le rapport LBX/LXD se situe dans la zone comprise entre 0,2/1 et 0,4/1.
  3. Procédé selon la revendication 1 ou 2 caractérisé en ce que LBX a une longueur se situant dans la zone comprise entre 5 cm et 50 cm et LXD a une longueur se situant dans la zone comprise entre 20 cm et 150 cm.
  4. Procédé selon une ou plusieurs des revendications 1 à 3, caractérisé en ce que le processus de soufflage AC présente un angle α compris entre 60° et 90° par rapport au parcours imaginaire AB et en ce que le parcours d'aspiration BX présente un angle β compris entre 60° et 90° par rapport au parcours imaginaire AB.
  5. Procédé selon la revendication 4 caractérisé en ce que le parcours de soufflage AC présente un angle α de 90° par rapport au parcours imaginaire AB et en ce que le parcours d'aspiration BX présente un angle β de 90° par rapport au parcours imaginaire AB.
  6. Procédé selon la revendication 4 caractérisé en ce que le parcours de soufflage AC présente un angle α compris entre 60° et moins de 90° par rapport au parcours imaginaire AB et en ce que le parcours d'aspiration BX présente un angle β de 90° par rapport au parcours imaginaire AB.
  7. Procédé selon une ou plusieurs des revendications 1 à 6, caractérisé en ce que le fluide de refroidissement gazeux soufflé transversalement dans la première zone de refroidissement est doté d'une vitesse de flux comprise entre 0,1 et 1 m/s.
  8. Procédé selon une ou plusieurs des revendications 1 à 7, caractérisé en ce que le fluide de refroidissement gazeux subit une régulation de température au moyen d'un premier dispositif de régulation de température avant d'être amené dans la première zone de refroidissement d'un dispositif de soufflage transversal au minimum unique.
  9. Procédé selon une ou plusieurs des revendications 1 à 8, caractérisé en ce qu'on fait passer le faisceau de filaments dans la deuxième zone de refroidissement entre des matériaux perforés, tels que, par exemple, des plaques perforées, de telle manière que le fluide de refroidissement gazeux peut atteindre les filaments à partir de deux côtés, par auto-aspiration des filaments du faisceau de filaments.
  10. Procédé selon une ou plusieurs des revendications 1 à 8, caractérisé en ce que dans la deuxième zone de refroidissement le faisceau de filaments passe dans un tube perforé.
  11. Procédé selon une ou plusieurs des revendications 1 à 10, caractérisé en ce que la première zone de refroidissement présente sur le parcours de soufflage AC un premier dispositif soufflage transversal et un deuxième dispositif de soufflage transversal qui se raccorde immédiatement à celui-ci, le premier dispositif de soufflage transversal et le deuxième dispositif de soufflage transversal présentant, en étant additionnés, la longueur L et le premier dispositif de soufflage transversal étant mené avec une vitesse V11 du fluide de refroidissement gazeux et le deuxième dispositif de soufflage transversal étant mené avec une vitesse V12 du fluide de refroidissement gazeux, V11 étant différent de V12.
  12. Procédé selon une ou plusieurs des revendications 1 à 11, caractérisé en ce que la première zone de refroidissement présente sur le premier parcours de soufflage AC un premier dispositif de soufflage transversal et un deuxième dispositif de soufflage transversal qui se raccord immédiatement à celui-ci, le premier et le deuxième dispositifs de soufflage transversal présentant, en étant additionnés, la longueur L, le premier dispositif de soufflage transversal étant mené avec une température T11 du fluide de refroidissement gazeux et le deuxième dispositif de soufflage transversal l'étant avec une température T12, des fluides de refroidissement gazeux, T11 étant différent de T12.
  13. Procédé selon une ou plusieurs des revendications 1 à 12, caractérisé en ce que le faisceau de filaments est refroidi davantage dans la deuxième zone de refroidissement gazeux par auto-aspiration du fluide de refroidissement se trouvant dans l'environnement du faisceau de filaments, le fluide de refroidissement gazeux subissant une opération de régulation de température avant l'entrée dans la deuxième zone de refroidissement.
  14. Procédé selon une ou plusieurs des revendications 1 à 13, caractérisé en ce qu'en tant que fluide de refroidissement gazeux on met en oeuvre de l'air et/ou un gaz inerte.
  15. Procédé selon une ou plusieurs des revendications 1 à 14, caractérisé en ce qu'après le refroidissement du faisceau de filaments dans la deuxième zone de refroidissement et avant l'enroulage on effectue un étirage des filaments en une ou plusieurs étapes.
  16. Procédé selon une ou plusieurs des revendications 1 à 15, caractérisé en ce que l'enroulement est effectué à des vitesses d'au moins 2500 m/min.
  17. Procédé selon une ou plusieurs des revendications 1 à 16, caractérisé en ce que le matériau thermoplastique est choisi dans un groupe comprenant des polymères thermoplastiques, le groupe comprenant le polyester, le polyamide, les polyoléfines ou des mélanges, ou des copolymères de ces polymères.
  18. Procédé selon une ou plusieurs des revendications 1 à 17, caractérisé en ce que le matériau thermoplastique est essentiellement constitué de polytéréphtalate d'éthylène.
  19. Fil du type multifilament de polyester obtenu au moyen d'un procédé selon une ou plusieurs des revendications 1 à 18 doté d'une stabilité dimensionnelle de 11,0 % au plus et d'un indice de perte par boulochage qui est d'au moins 5 % inférieur à l'indice de perte par boulochage d'un fil du type multifilament de polyester qui est filé dans les mêmes conditions à l'exception du fait que LBX = L.
  20. Fil du type multifilament de polyester selon la revendication 19 doté d'une stabilité dimensionnelle de 10,5 % au plus.
  21. Fil du type multifilament de polyester selon la revendication 19 ou 20 doté d'une résistance à la rupture supérieure à 60 cN/tex.
  22. Fil du type multifilament de polyester selon la revendication 21 doté d'une résistance à la rupture supérieure à 65 cN/tex.
  23. Fil du type multifilament de polyester selon une ou plusieurs des revendications 19 à 22 doté d'un indice de perte par boulochage qui est d'au moins 50 % inférieur à l'indice de perte par boulochage d'un fil du type multifilament de polyester qui est filé dans les mêmes conditions à l'exception du fait que LBX = L.
  24. Fil du type multifilament de polyester selon la revendication 23 doté d'un indice de perte par boulochage qui est d'au moins 60 % inférieur à l'indice de perte par boulochage d'un fil du type multifilament de polyester qui est filé dans les mêmes conditions, à l'exception du fait que LBX = L.
  25. Fil du type multifilament de polyester selon une ou plusieurs des revendications 19 à 24 doté d'un indice de casse de fil qui est inférieur à 25 pour 1000 kg de fil.
  26. Fil du type multifilament de polyester selon la revendication 25 doté d'un indice de casse de fil qui est inférieur à 10 pour 1000 kg de fil.
  27. Fil du type multifilament de polyester selon une ou plusieurs des revendications 19 à 26, caractérisé en ce que le fil présente une résistance à la rupture T en mN/tex et un allongement à la rupture E en %, le produit de la résistance à la rupture T et de la racine cubique de l'allongement à la rupture E, T. E1/3 est d'au moins 1600 mN %1/3/tex.
  28. Câble non traité par plongé comportant un fil du type multifilament de polyester selon la revendication 27 caractérisé en ce que le câble présente, en ce qui concerne le produit T . E1/3, une valeur d'au moins 1375 mN % 1/3/tex.
  29. Câble traité par plongé comportant un fil du type multifilament de polyester selon la revendication 27, le câble présentant un pouvoir de rétension Rt caractérisé en ce que le facteur de qualité Qt, c'est-à-dire le produit de T . E1/3 des fils du type filament de polyester et de Rt du câble est supérieur à 1350 mN % 1/3/tex.
EP08784791.9A 2007-07-21 2008-07-16 Procédé de filage Not-in-force EP2171138B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08784791.9A EP2171138B1 (fr) 2007-07-21 2008-07-16 Procédé de filage

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP07014367 2007-07-21
PCT/EP2008/005783 WO2009012916A2 (fr) 2007-07-21 2008-07-16 Procédé de filage
EP08784791.9A EP2171138B1 (fr) 2007-07-21 2008-07-16 Procédé de filage

Publications (2)

Publication Number Publication Date
EP2171138A2 EP2171138A2 (fr) 2010-04-07
EP2171138B1 true EP2171138B1 (fr) 2013-05-15

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Application Number Title Priority Date Filing Date
EP08784791.9A Not-in-force EP2171138B1 (fr) 2007-07-21 2008-07-16 Procédé de filage

Country Status (10)

Country Link
US (2) US7842208B2 (fr)
EP (1) EP2171138B1 (fr)
JP (1) JP5455902B2 (fr)
KR (1) KR20100040731A (fr)
CN (1) CN101981239B (fr)
BR (1) BRPI0814657A2 (fr)
CA (1) CA2694041A1 (fr)
RU (1) RU2459892C2 (fr)
WO (1) WO2009012916A2 (fr)
ZA (1) ZA201000399B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2524981A1 (fr) 2011-05-18 2012-11-21 Api Institute Fil de polyester à dimensions stables et sa préparation
KR101283213B1 (ko) 2011-12-15 2013-07-05 현대자동차주식회사 차량용 이더넷 통신 네트워크 운영관리 시스템 및 그 방법
CN103233283B (zh) * 2013-04-27 2016-01-06 可隆（南京）特种纺织品有限公司 高强高伸聚酯轮胎帘子线原丝的制造方法、帘子线原丝及帘子线
CN103556242A (zh) * 2013-11-14 2014-02-05 苏州千色纺化纤有限公司 一种用于生产由聚酯纤维制成的纺织线的加工装置
CN106149069B (zh) * 2016-08-15 2018-08-07 宁波大发化纤有限公司 一种纤维冷却用环吹装置的整流筒

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JPS50121514A (fr) * 1974-03-15 1975-09-23
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BR8907519A (pt) * 1988-07-05 1991-06-18 Allied Signal Inc Processo para a producao de um fio de tereftalato de polietileno estirado,fio e produtos resultantes
DE68925286T2 (de) * 1989-10-09 1996-07-18 Toray Industries Falschzwirnverfahren
JP2528985B2 (ja) 1990-02-09 1996-08-28 帝人株式会社 ポリエステル繊維の溶融紡糸方法
FR2702778B1 (fr) * 1993-03-18 1995-05-05 Vetrotex France Sa Procédé et dispositif de formation d'un fil composite.
JPH07189025A (ja) * 1993-12-24 1995-07-25 Unitika Ltd 溶融紡糸ポリアミド糸条の冷却方法
PL320938A1 (en) 1994-12-23 1997-11-10 Akzo Nobel Nv Method of producing monofilament polyester yarn
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DE59705511D1 (de) * 1996-08-28 2002-01-10 Barmag Barmer Maschf Verfahren und Vorrichtung zum Spinnen eines multifilen Fadens
EP1228268B1 (fr) * 1999-09-07 2004-02-18 Barmag Ag Procede de filage par fusion
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Also Published As

Publication number Publication date
CN101981239B (zh) 2013-03-06
US20100269478A1 (en) 2010-10-28
US20100186364A1 (en) 2010-07-29
JP5455902B2 (ja) 2014-03-26
KR20100040731A (ko) 2010-04-20
ZA201000399B (en) 2010-10-27
US7842208B2 (en) 2010-11-30
RU2010106200A (ru) 2011-08-27
WO2009012916A4 (fr) 2009-08-06
CN101981239A (zh) 2011-02-23
CA2694041A1 (fr) 2009-01-29
WO2009012916A3 (fr) 2009-06-18
EP2171138A2 (fr) 2010-04-07
BRPI0814657A2 (pt) 2015-02-18
RU2459892C2 (ru) 2012-08-27
JP2010534283A (ja) 2010-11-04
WO2009012916A2 (fr) 2009-01-29

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