EP0301266A1 - Method for continuously sizing and stretching synthetic filaments - Google Patents

Method for continuously sizing and stretching synthetic filaments Download PDF

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Publication number
EP0301266A1
EP0301266A1 EP88110525A EP88110525A EP0301266A1 EP 0301266 A1 EP0301266 A1 EP 0301266A1 EP 88110525 A EP88110525 A EP 88110525A EP 88110525 A EP88110525 A EP 88110525A EP 0301266 A1 EP0301266 A1 EP 0301266A1
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EP
European Patent Office
Prior art keywords
sizing
filament yarns
zone
yarns
filaments
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EP88110525A
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German (de)
French (fr)
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EP0301266B1 (en
Inventor
Peter Maurer
Jörg Dipl.-Ing. Pfister (FH)
Wolfgang Dipl.-Ing. Sauter (Fh)
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Cerdia Produktions GmbH
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Rhodia AG
Rhone Poulenc Rhodia AG
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Application filed by Rhodia AG, Rhone Poulenc Rhodia AG filed Critical Rhodia AG
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
    • D06B23/06—Guiding means for preventing filaments, yarns or threads from sticking together

Definitions

  • the invention relates to a process for the production of partial chains wound on warp beams or partial warp beams or chains of synthetic filament yarns wound on warp beams, which are essentially completely stretched and sized, according to which a family of essentially parallel synthetic thermoplastic filament yarns is used as the starting material and this family passed through a possibly heated sizing zone and finished there, then passed through a heated pre-drying zone and predried there, then passed through a heated final drying zone and subjected to final drying there and finally onto slip beams or partial warp beams or Warp beams is wound up.
  • filament yarn means a yarn made of multiple filaments; the term “filament” includes an endless (continuous) thread-like structure, that is to say a practically unlimited length (cf. DIN 60 000).
  • Partial warps wound on slip trees are those which are used for assembly - to form a warp wound on a warp beam.
  • a method for producing warp beams or partial warp beams from continuous synthetic yarns, which are essentially completely stretched and sized and are suitable for use on looms for the manufacture of fabrics is known from European Patent No. 0.091 549.
  • the yarns are supplied through a feed bobbin, arranged in parallel by means of a guide and passed through a container which contains a sizing liquid in which at least one thread cohesive agent is present;
  • So starting material continuous thermoplastic yarns are used, in which the threads (filaments) are substantially parallel and not completely drawn;
  • the stretching and the sizing are carried out simultaneously or essentially simultaneously, while the yarns are immersed in the container containing the sizing liquid.
  • European Patent Application No. 0 144 617 is a process for producing chains or partial chains wound on warp beams from continuous, synthetic, fully drawn yarns, which are suitable for all types of textiles produced on looms.
  • a process for producing chains or partial chains wound on warp beams from continuous, synthetic, fully drawn yarns which are suitable for all types of textiles produced on looms.
  • at least 24 continuous, thermoplastic yarns made of essentially parallel and partially drawn filaments are used stretched together and simultaneously while immersed in a container containing a thermostatic liquid, such as water, - then undergo interlacing treatment with the help of an air nozzle and - finally be arbitrated.
  • such a conventional sizing device requires the addition of a container - for the thermostatic liquid - with a complete stretching device consisting of drive, gear and stretching rollers, and also a device with air nozzles for interlacing (Intermingling) the filaments of each yarn with each other.
  • the stretching zones are comparatively short both in the process according to European patent No. 0 091 549 and in the process according to European patent application No. 0 144 617.
  • the yarns have to be subjected to a twist or thread replacement treatment before sizing, since otherwise the cohesion of the filaments, i.e. the filament composite, and the filament density within each yarn is too low or insufficient, which is - Loose or protruding filaments - for example, can cause difficulties when weaving or can later impair the optical image of the finished fabric.
  • the twist replacement treatment mainly involves - in places - interlacing (tangling) the filaments with the aid of a fluid nozzle, preferably an air nozzle. This interlacing with an air nozzle has the following disadvantages. - It leads to a very high noise level, and - It is expensive due to the high energy requirement (the latter also applies to the twisting itself).
  • the invention has for its object to provide a method of the aforementioned type for the production of partial chains or partial warp chains wound chains or chains of synthetic filament yarns wound on warp beams, with the inexpensive and / or without great effort qualitatively flawless, especially in any Regarding even partial chains or chains can be made; it should be possible to dispense with a thread or thread replacement treatment for the filament yarns before sizing.
  • the filaments of the filament yarns of the batch of the starting material are drawn together and simultaneously in the predrying zone or essentially in the predrying zone.
  • "Essentially in the pre-drying zone” means: in the area between the last rollers assigned to the size zone and the rollers assigned to the final drying zone.
  • a family of essentially parallel synthetic thermoplastic filament yarns, etc. passed through an optionally heated size zone and finished there.
  • An optionally heated size zone means that the size zone, in particular the size liquid in the size trough, can be heated or unheated;
  • unheated means that the sizing liquid e.g. Has room temperature.
  • the invention has the following advantages: -
  • the method according to the invention can be carried out with the help of sizing machines customary today without the need for expensive additional devices and / or structural changes (a constructional enlargement is also not necessary), but at best with a simple change in the transmission ratio of the drive of the rollers in the sizing trough; - Since the drawing takes place in the predrying zone and this must also be relatively long - in order to adequately predrying - in the sizing machines customary today, irregularities in the filament yarns supplied are easily eliminated.
  • the heat in the pre-drying zone is also used as a stretching aid.
  • the filaments of the filament yarns are also stretched very uniformly; - Compared to the sizing processes customary today, less heat is required in the predrying zone, since the section energy introduced by the roller system assigned to the sizing zone is converted into heat and is used for predrying the sizing film; - It is not necessary to subject the filament yarns to a twist or thread replacement treatment before sizing, because according to the invention partial chains or chains are obtained, the filament yarns of which each have sufficient cohesion for their further processing and a high density of their filament; these filament yarns are completely closed and - in contrast to the filament yarns of the chains or partial chains, which are produced by the known processes and which have a rather flattened yarn cross section - have a practically round yarn cross section. In addition, the filaments of the filament yarns according to the invention run largely parallel, and their size wrapping and impregnation is practically complete. that
  • a family of essentially parallel synthetic thermoplastic filament yarns is used as the starting material.
  • the filaments in these filament yarns can also be parallel; however, although it is not necessary, the filaments may be interlaced (tangled) in places, for example with the aid of an air nozzle, or they may have been subjected to a twist.
  • the filament yarns used for the purposes of the invention can, for example, consist of polyester, such as polyethylene terephthalate, polyamide, such as polyamide-6 or polyamide-66, polyolefin, such as polyethylene or polypropylene, and also consist of their mixtures or copolymers.
  • the filament yarns can also consist of other synthetic thermoplastic polymers or their modifications.
  • FIG. 1 shows schematically and in section a conventional device for sizing partial chains or chains made of synthetic filament yarns that is suitable for carrying out the method according to the invention.
  • a predetermined number of bobbins with synthetic thermoplastic filament yarn, the filaments of which are not fully drawn, are placed on a conventional bobbin, not shown; the yarns are drawn off from this creel under constant thread tension and arranged in parallel with the aid of a reed, also not shown, after which the sheet of filament yarns thus formed is guided via a roller system 1 rotating at constant speed and a roller 2 to a size trough 3 forming the size zone, which is filled with a sizing liquid.
  • the yarns are then passed through a sizing roller 4 through the sizing liquid and from there via a sizing roller 5 to the nip between the sizing roller 5 and a squeeze roller 6, where the sizing liquid is applied and the excess thereof is squeezed off at the same time.
  • the yarns then form through the predrying zone heated pre-dryer 7 and 8 passed where they are pre-dried; from there the yarns are passed through a final dryer 9 forming the final drying zone, where they are subjected to final drying by being guided over heated drying cylinders 10.
  • the - parallel - filament yarns are guided from the end dryer 9 to a slip beam, partial warp beam or warp beam 11, on which they are wound up.
  • the rollers 5 and 6 rotate at a peripheral speed which is lower than that of the drying cylinder 10, whereby the filaments of the filament yarns are stretched together and simultaneously, namely between the pair of rollers 5, 6 and the drying cylinders 10, i.e. in the predrying zone or in essential in the pre-drying zone.
  • the method according to the invention can also be carried out in such a way that the filament yarns are not drawn off directly from bobbins placed on a creel, but for example from one tree or several trees.
  • the chains produced by the process according to the invention show excellent running behavior when weaving, and the fabrics produced from these chains have excellent properties with regard to color affinity, color uniformity, strength and elongation properties, tendency to bulge and length increase.
  • 1,492 bobbins with polyamide 66 filament yarn 97.7 dtex f 17 (partially oriented yarn POY), the filaments of which were thus pre-oriented, were placed on a conventional bobbin creel (from Benninger, Switzerland); the filament cross section was round.
  • the tensile strength of the filament yarn was 35.2 cN / tex and the elongation at break was 75%.
  • the yarns were drawn off from the creel at a speed of 312.2 m / min using a draw-off roller system under constant thread tension.
  • the filament yarn sheet thus formed was passed to a size trough which was filled with a size liquid.
  • the size liquid consisted of an 11% aqueous solution (liquor concentration) of an acrylic size (Sopronyl AR 41 from Rhône-Poulenc, France) and had a temperature of 42 ° C.
  • the yarns were then passed over a roller immersed in the sizing liquid (immersion roller) and from there passed over the sizing roller also immersed in the sizing liquid to the pinch joint between this sizing roller and a squeezing roller.
  • the squeezing pressure between the sizing roller and the squeezing roller - when running - was 6.0 kg / cm2 (6.0 daN / cm2).
  • the size roller and the squeeze roller rotated at a peripheral speed of 312.9 m / min.
  • the - parallel - yarns were then passed through two pre-dryers connected in series, both of which had a temperature of 150 ° C.
  • the predrying zone formed by the two predryers was 11 m long.
  • the family of parallel filament yarns was then passed through a final dryer, the first drying cylinder of which rotated at a peripheral speed which was 31.67% higher than the peripheral speed of the sizing roller and the squeeze roller.
  • the yarns were subjected to final drying by being guided over the five heated drying cylinders of the final dryer.
  • the first four drying cylinders of the final dryer each had a temperature of 135 ° C; the last drying cylinder of the final dryer had a temperature of 110 ° C.
  • the filaments of the filament yarns were stretched in the area between the sizing / squeezing roller and the drying cylinders of the final dryer.
  • the thread tensile forces determined during the implementation of the method according to the invention - measured on the individual filament yarn - were the following: 1. after the thread brake in the creel 5 cN 2. in front of the take-off rollers 12 cN 3. in the pre-drying zone 70 cN 4. before winding onto the tree 17 cN
  • the filament yarns thus sized and drawn had the following properties: Titer: 83.1 dtex (arbitrated) Tear resistance: 41.5 cN / tex Elongation at break: 40% Cooking shrinkage (30 min in boiling water): 7.04% Sizing pad: 4.66%
  • the filament yarns obtained had an almost round cross section and their filament composite was closed. The core and coat arbitration was practically complete.
  • the yarns were drawn off from the creel at a speed of 45.2 m / min with the aid of a draw-off roller system under constant thread tension.
  • the size liquid consisted of a 20 to 21% aqueous solution (liquor concentration) of a polyester size (Gerol PS 25 from Rhône-Poulenc, France) and had a temperature of 74 to 77 ° C.
  • the yarns were then passed over a roller immersed in the sizing liquid (immersion roller) and from there via the sizing roller lightly touching the surface of the sizing liquid to the nip between this sizing roller and a squeezing roller.
  • the squeezing pressure between the sizing roller and the squeezing roller - during the run - was 600 daN (based on the total contact line or area of the two rollers).
  • the size roller and the squeeze roller rotated at a peripheral speed of 45.0 m / min.
  • the - parallel - yarns were then passed through two pre-dryers connected in series, both of which had a temperature of 120 ° C.
  • the predrying zone formed by the two predryers was 10 m long.
  • the family of parallel filament yarns was then passed through a final dryer, the first drying cylinder of which rotated at a peripheral speed which was 221.3% higher than the peripheral speed of the sizing roller and the squeeze roller.
  • the yarns were subjected to final drying by being guided over the five heated drying cylinders of the final dryer.
  • the first four drying cylinders of the final dryer each had a temperature of 145 ° C; the last drying cylinder of the final dryer had a temperature of 105 ° C.
  • the filaments of the filament yarns were stretched in the area between the sizing / squeezing roller and the drying cylinders of the final dryer.
  • the thread tensile forces determined during the implementation of the method according to the invention - measured on the individual filament yarn - were the following: 1. after the thread brake in the creel 3.5 cN 2. in front of the take-off rollers 3 cN 3. in the pre-drying zone 38 cN 4. before winding onto the tree 11 cN
  • the filament yarns thus sized and drawn had the following properties: Titer: 54.6 dtex (arbitrated) Tear resistance: 39.4 cN / tex Elongation at break: 29.1% Cooking shrinkage (30 min in boiling water): 3.7% Sizing pad: 5.5%
  • the filament yarns obtained had an almost round cross section and their filament composite was closed. The core and coat arbitration was practically complete.
  • the starting yarn (polyamide 66 filament yarn 97.7 dtex f 17) was - before it was used for the process according to the invention - only a very light thread replacement treatment - with the help of a Air nozzle for interlacing (tangling) the filaments with one another - and had only 1 or 2 interlacing points (confusing points or fixed points - see, for example, the German design specification 16 60 267) per m.
  • the starting yarn (polyethylene terephthalate filament yarn 120 dtex f 22) had not been subjected to any thread or thread replacement treatment.

Abstract

The method for the production of partial warps wound on warping beams or sectional beams, or warps of synthetic filament yarns wound on warp beams, which are completely stretched and sized, consists of sizing a group of parallel synthetic thermoplastic filament yarns, the filaments of which are not completely stretched, in a sizing zone, predrying the sized yarns in a heated predrying zone, subjecting the predried sized group of yarn by final drying in a heated final drying zone, and finally winding the dried group of yarns on warping or (sectional) beams, while the filaments of the filament yarns are stretched jointly and simultaneously in the predrying zone. The stretching occurs preferably between rolls (5, 6) assigned to the sizing zone and rolls (10) assigned to the final drying zone. The method may be carried out with conventional, at most slightly modified sizing machines and it furnishes very uniform partial warps or warps. In particular the filaments of the filament yarns are stretched very uniformly. In addition, a twisting or twist-replacement treatment of the filament yarns prior to sizing may be eliminated because warps are obtained, the filament yarns of which have sufficient cohesion for further processing and a high density of their filaments.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung von auf Zettelbäumen oder Teilkettbäumen aufgewickel­ten Teilketten oder auf Kettbäumen aufgewickelten Ketten aus synthetischen Filamentgarnen, die im we­sentlichen völlig verstreckt und geschlichtet sind, nach dem als Ausgangsmaterial eine Schar aus im we­sentlichen parallelen synthetischen thermoplasti­schen Filamentgarnen eingesetzt wird und diese Schar durch eine gegebenenfalls beheizte Schlichte­zone geführt und dort geschlichtet, anschließend durch eine beheizte Vortrockenzone geführt und dort vorgetrocknet, danach durch eine beheizte Endtrocken­zone geführt und dort einer Endtrocknung unterzo­gen sowie schließlich auf Zettelbäume oder Teilkett­bäume resp. Kettbäume aufgewickelt wird.The invention relates to a process for the production of partial chains wound on warp beams or partial warp beams or chains of synthetic filament yarns wound on warp beams, which are essentially completely stretched and sized, according to which a family of essentially parallel synthetic thermoplastic filament yarns is used as the starting material and this family passed through a possibly heated sizing zone and finished there, then passed through a heated pre-drying zone and predried there, then passed through a heated final drying zone and subjected to final drying there and finally onto slip beams or partial warp beams or Warp beams is wound up.

Der Ausdruck "Filamentgarn" bedeutet ein Garn aus mehreren Filamenten; dabei beinhaltet der Ausdruck "Filament" ein endloses (kontinuierliches) faden­förmiges Gebilde, also ein solches praktisch unbe­grenzter Länge (vgl. dazu DIN 60 000).The term "filament yarn" means a yarn made of multiple filaments; the term "filament" includes an endless (continuous) thread-like structure, that is to say a practically unlimited length (cf. DIN 60 000).

Auf Zettelbäumen aufgewickelte Teilketten sind solche, die für das Assemblieren - zu einer auf einem Webkettbaum aufgewickelten Webkette - einge­setzt werden.Partial warps wound on slip trees are those which are used for assembly - to form a warp wound on a warp beam.

Aus der europäischen Patentschrift Nr. 0.091 549 ist ein Verfahren zum Herstellen von Kettbäumen oder Teilkettbäumen aus kontinuierlichen synthetischen Garnen, die im wesentlichen völlig gestreckt und geschlichtet und zur Verwendung auf Webstühlen für die Stoffherstellung geeignet sind, bekannt. Nach diesem bekannten Verfahren
- werden die Garne durch ein Zufuhrspulengestell geliefert, mittels einer Führung parallel angeord­net und durch einen Behälter geleitet, der eine Schlichteflüssigkeit enthält, in der zumindest ein Fadenkohäsionsmittel vorhanden ist;
- werden also Ausgangsmaterial kontinuierliche thermo­plastische Garne eingesetzt, in welchen die Fäden (Filamente) im wesentlichen parallel und nicht völlig verstreckt sind;
- werden das Strecken und das Schlichten gleichzei­tig oder im wesentlichen gleichzeitig durchgeführt, während die Garne im Behälter, der die Schlichte­flüssigkeit enthält, eingetaucht sind.A method for producing warp beams or partial warp beams from continuous synthetic yarns, which are essentially completely stretched and sized and are suitable for use on looms for the manufacture of fabrics, is known from European Patent No. 0.091 549. According to this known method
- The yarns are supplied through a feed bobbin, arranged in parallel by means of a guide and passed through a container which contains a sizing liquid in which at least one thread cohesive agent is present;
- So starting material continuous thermoplastic yarns are used, in which the threads (filaments) are substantially parallel and not completely drawn;
- The stretching and the sizing are carried out simultaneously or essentially simultaneously, while the yarns are immersed in the container containing the sizing liquid.

Ferner ist aus der europäischen Patentanmeldung Nr. 0 144 617 ein Verfahren zum Herstellen von auf Web­kettbäumen aufgewickelten Ketten oder Teilketten aus kontinuierlichen, synthetischen, völlig verstreckten Garnen, die für alle Arten von auf Webstühlen herge­stellten Textilien geeignet sind, bekannt.
Für dieses, aus der europäischen Patentanmeldung Nr. 0 144 617 bekannte Verfahren verwendet man mindestens 24 kontinuierliche, thermoplastische Garne aus im wesentlichen parallelen und teilweise verstreckten Filamenten, die
- gemeinsam und gleichzeitig verstreckt werden, während sie in einem Behälter, der eine thermosta­tische Flüssigkeit, wie Wasser, enthält, eingetaucht sind,
- danach einer Verflechtungsbehandlung mit Hilfe einer Luftdüse unterzogen werden und
- schließlich geschlichtet werden.Also known from European Patent Application No. 0 144 617 is a process for producing chains or partial chains wound on warp beams from continuous, synthetic, fully drawn yarns, which are suitable for all types of textiles produced on looms.
For this process, known from European Patent Application No. 0 144 617, at least 24 continuous, thermoplastic yarns made of essentially parallel and partially drawn filaments are used
stretched together and simultaneously while immersed in a container containing a thermostatic liquid, such as water,
- then undergo interlacing treatment with the help of an air nozzle and
- finally be arbitrated.

Diese bekannten Verfahren zeigen jedoch folgende Nachteile:
- Die zur Zeit üblichen Vorrichtungen zum Schlichten von Teilketten oder Ketten, bestehend aus einem Schlichtetrog, Vortrocknern und einem Endtrockner, sind ohne kostspielige Zusatzeinrichtungen bzw. umfangreiche konstruktive Änderungen weder zur Durch­führung des Verfahrens nach dem europäischen Patent Nr 0 091 549 noch zur Durchführung des Verfahrens nach der europäischen Patentanmeldung Nr. 0 144 617 geeignet. So muß zur Anwendung des Verfahrens nach dem europäischen Patent Nr. 0 091 549 in eine solche übliche Schlichtvorrichtung, und zwar in dessen Schlichtetrog, eine komplette Streckeinrichtung, bestehend aus Antrieb, Getriebe und Streckwalzen, eingebaut werden. Zur Anwendung des Verfahrens nach der europäischen Patentanmeldung Nr. 0 144 617 be­darf es bei einer solchen üblichen Schlichtvorrich­tung des Anbaus eines Behälters - für die thermo­statische Flüssigkeit - mit kompletter Streckein­richtung, bestehend aus Antrieb, Getriebe und Streckwalzen, sowie ferner einer Einrichtung mit Luftdüsen zur Verflechtung (Verwirbelung) der Fila­mente eines jeden Garnes miteinander.
- Sowohl beim Verfahren nach dem europäischen Patent Nr. 0 091 549 als auch beim Verfahren nach der europäischen Patentanmeldung Nr. 0 144 617 sind die Streckzonen vergleichsweise kurz. Dadurch ist es nur begrenzt möglich, eventuell vorhandene Ungleichmäßig­keiten, wie Spannungsschwankungen oder Filament­schlingen, der als Ausgangsmaterial zugeführten Fi­lamentgarne auszugleichen oder zum Verschwinden zu bringen.
Durch die kurzen Streckzonen bei den zuvor erwähn­ten bekannten Verfahren ist es außerdem nur in be­schränktem Maße möglich, eine sehr gleichmäßige Verstreckung der Filamente und damit der Filament­garne zu erreichen.
- Bei den bekannten Verfahren müssen die Garne vor dem Schlichten jeweils einer Zwirn- oder Zwirnersatz-­Behandlung unterzogen werden, da sonst der Zusam­menhalt der Filamente, also der Filamentverbund, und die Filamentdichte innerhalb eines jeden Garns zu gering bzw. nicht ausreichend ist, was - durch lose oder abstehende Filamente - beispielsweise beim Weben zu Schwierigkeiten führen oder später das optische Bild des fertigen Gewebes beeinträchtigen kann.
Als Zwirnersatz-Behandlung wird hauptsächlich das - stellenweise - Verflechten (Verwirren) der Filamente mit Hilfe einer Fluid-Düse, vorzugsweise einer Luft­düse, angewandt.
Dieses Verflechten mit einer Luftdüse hat folgende Nachteile.
- Es führt zu einem sehr hohen Geräuschpegel,
und
- es ist kostspielig durch den hohen Energiebedarf (letzteres gilt im übrigen auch für das Zwirnen selbst).However, these known methods have the following disadvantages:
- The currently customary devices for sizing partial chains or chains, consisting of a sizing trough, predryers and a final dryer, are neither expensive to carry out the process according to European Patent No. 0 091 549 nor to carry out the process without expensive additional devices or extensive design changes suitable according to European patent application No. 0 144 617. To use the method according to European Patent No. 0 091 549, a complete stretching device, consisting of drive, gear and stretching rollers, must be installed in such a conventional sizing device, namely in its sizing trough. To use the method according to European patent application No. 0 144 617, such a conventional sizing device requires the addition of a container - for the thermostatic liquid - with a complete stretching device consisting of drive, gear and stretching rollers, and also a device with air nozzles for interlacing (Intermingling) the filaments of each yarn with each other.
- The stretching zones are comparatively short both in the process according to European patent No. 0 091 549 and in the process according to European patent application No. 0 144 617. As a result, it is only possible to a limited extent to compensate for any non-uniformities, such as tension fluctuations or filament loops, of the filament yarns supplied as the starting material or to make them disappear.
Due to the short drawing zones in the known processes mentioned above, it is also only possible to a very limited extent to achieve a very uniform drawing of the filaments and thus the filament yarns.
- In the known processes, the yarns have to be subjected to a twist or thread replacement treatment before sizing, since otherwise the cohesion of the filaments, i.e. the filament composite, and the filament density within each yarn is too low or insufficient, which is - Loose or protruding filaments - for example, can cause difficulties when weaving or can later impair the optical image of the finished fabric.
The twist replacement treatment mainly involves - in places - interlacing (tangling) the filaments with the aid of a fluid nozzle, preferably an air nozzle.
This interlacing with an air nozzle has the following disadvantages.
- It leads to a very high noise level,
and
- It is expensive due to the high energy requirement (the latter also applies to the twisting itself).

Der Erfindung liegt die Aufgabe zugrunde, ein Verfah­ren der eingangs genannten Gattung zur Herstellung von auf Zettelbäumen oder Teilkettbäumen aufgewickel­ten Teilketten oder auf Kettbäumen aufgewickelten Ket­ten aus synthetischen Filamentgarnen zur Verfügung zu stellen, mit dem kostengünstig und/oder ohne großen Aufwand qualitativ einwandfreie, insbesondere in jeglicher Hinsicht gleichmäßige Teilketten oder Ketten hergestellt werden können; dabei soll auf eine Zwirn- oder Zwirnersatz-Behandlung für die Fi­lamentgarne vor dem Schlichten verzichtet werden kön­nen.The invention has for its object to provide a method of the aforementioned type for the production of partial chains or partial warp chains wound chains or chains of synthetic filament yarns wound on warp beams, with the inexpensive and / or without great effort qualitatively flawless, especially in any Regarding even partial chains or chains can be made; it should be possible to dispense with a thread or thread replacement treatment for the filament yarns before sizing.

Diese Aufgabe wird, ausgehend von einem Verfahren der eingangs genannten Art, durch die im kennzeich­nenden Teil des Anspruchs 1 angegebenen Merkmale ge­löst.This object is achieved, starting from a method of the type mentioned at the outset, by the features specified in the characterizing part of claim 1.

Vorteilhafte Ausführungsformen des erfindungsgemäßen Verfahrens sind in den Ansprüchen 2 und 3 angegeben.Advantageous embodiments of the method according to the invention are specified in claims 2 and 3.

Nach der Erfindung werden die Filamente der Filament­garne der Schar des Ausgangsmaterials in der Vor­trockenzone oder im wesentlichen in der Vortrocken­zone gemeinsam und gleichzeitig verstreckt. "Im wesentlichen in der Vortrockenzone" bedeutet: im Bereich zwischen den letzten, der Schlichtezone zugeordneten Walzen und den der Endtrockenzone zu­geordneten Walzen.According to the invention, the filaments of the filament yarns of the batch of the starting material are drawn together and simultaneously in the predrying zone or essentially in the predrying zone. "Essentially in the pre-drying zone" means: in the area between the last rollers assigned to the size zone and the rollers assigned to the final drying zone.

Nach der Erfindung wird eine Schar aus im wesentli­chen parallelen synthetischen thermoplastischen Fila­mentgarnen u.a. durch eine gegebenenfalls beheizte Schlichtezone geführt und dort geschlichtet. "Eine gegebenenfalls beheizte Schlichtezone" bedeu­tet, daß die Schlichtezone, insbesondere die Schlichteflüssigkeit im Schlichtetrog, beheizt oder unbeheizt sein kann; dabei bedeutet "unbeheizt", daß die Schlichteflüssigkeit z.B. Zimmertemperatur auf­weist.According to the invention, a family of essentially parallel synthetic thermoplastic filament yarns, etc. passed through an optionally heated size zone and finished there. "An optionally heated size zone" means that the size zone, in particular the size liquid in the size trough, can be heated or unheated; "unheated" means that the sizing liquid e.g. Has room temperature.

Die Erfindung weist folgende Vorteile auf:
- Das erfindungsgemäße Verfahren kann mit Hilfe von heute üblichen Schlichtmaschinen ohne die Notwendig­keit von teueren Zusatzeinrichtungen und/oder kon­struktiven Änderungen (eine bauliche Vergrößerung ist ebenfalls nicht notwendig), sondern allenfalls mit einer einfachen Veränderung des Übersetzungsver­hältnisses des Antriebs der Walzen im Schlichte­trog durchgeführt werden;
- da die Verstreckung in der Vortrockenzone statt­findet und diese auch bei den heute üblichen Schlichtmaschinen - zur ausreichenden Vortrocknung - relativ lang sein muß, werden Ungleichmäßigkeiten der zugeführten Filamentgarne leicht beseitigt. Ferner wird die Wärme in der Vortrockenzone als Streckhilfe mitgenutzt.
Durch die entsprechend lange Vortrockenzone und damit das lange Verweilen der Filamentgarne in der temperierten Umgebung dieser Zone werden außerdem die Filamente der Filamentgarne sehr gleichmäßig verstreckt;
- gegenüber den heute üblichen Schlichtverfahren be­nötigt man in der Vortrockenzone weniger Wärme, da die - durch das der Schlichtezone zugeordnete Wal­zensystem eingeleitete - Streckenenergie in Wärme umgewandelt wird und zur Vortrocknung des Schlichte­films mitgenutzt wird;
- es ist nicht notwendig, die Filamentgarne vor dem Schlichten einer Zwirn- oder Zwirnersatz-Behandlung zu unterziehen, denn nach der Erfindung erhält man Teilketten oder Ketten, deren Filamentgarne jeweils einen ausreichenden Zusammenhalt für ihre Weiterver­arbeitung und eine hohe Dichte ihrer Filament auf­weisen; dabei sind diese Filamentgarne völlig ge­schlossen und weisen - im Gegensatz zu den Filament­garnen der Ketten oder Teilketten, die nach den be­kannten Verfahren hergestellt werden, und die einen eher abgeflachten Garnquerschnitt besitzen - einen praktisch runden Garnquerschnitt auf. Außerdem ver­laufen die Filamente der Filamentgarne nach der Er­findung weitestgehend parallel, und deren Schlichte­umhüllung und -durchtränkung ist praktisch vollstän­dig. d.h., daß sowohl die Filamentgarne selbst als auch deren Filamente von der Schlichte praktisch völlig umhüllt sind.The invention has the following advantages:
- The method according to the invention can be carried out with the help of sizing machines customary today without the need for expensive additional devices and / or structural changes (a constructional enlargement is also not necessary), but at best with a simple change in the transmission ratio of the drive of the rollers in the sizing trough;
- Since the drawing takes place in the predrying zone and this must also be relatively long - in order to adequately predrying - in the sizing machines customary today, irregularities in the filament yarns supplied are easily eliminated. The heat in the pre-drying zone is also used as a stretching aid.
Due to the correspondingly long pre-drying zone and thus the long dwelling of the filament yarns in the temperate environment of this zone, the filaments of the filament yarns are also stretched very uniformly;
- Compared to the sizing processes customary today, less heat is required in the predrying zone, since the section energy introduced by the roller system assigned to the sizing zone is converted into heat and is used for predrying the sizing film;
- It is not necessary to subject the filament yarns to a twist or thread replacement treatment before sizing, because according to the invention partial chains or chains are obtained, the filament yarns of which each have sufficient cohesion for their further processing and a high density of their filament; these filament yarns are completely closed and - in contrast to the filament yarns of the chains or partial chains, which are produced by the known processes and which have a rather flattened yarn cross section - have a practically round yarn cross section. In addition, the filaments of the filament yarns according to the invention run largely parallel, and their size wrapping and impregnation is practically complete. that is, both the filament yarns themselves and their filaments are practically completely covered by the size.

Gemäß der Erfindung wird als Ausgangsmaterial eine Schar aus im wesentlichen parallelen synthetischen thermoplastischen Filamentgarnen eingesetzt. Die Fi­lamente in diesen Filamentgarnen können ebenfalls parallel sein; obwohl es nicht notwendig ist, können die Filamente jedoch auch, beispielsweise mit Hilfe einer Luftdüse, stellenweise miteinander verflochten (verwirrt) sein, oder sie können einer Zwirnung unter­worfen worden sein.According to the invention, a family of essentially parallel synthetic thermoplastic filament yarns is used as the starting material. The filaments in these filament yarns can also be parallel; however, although it is not necessary, the filaments may be interlaced (tangled) in places, for example with the aid of an air nozzle, or they may have been subjected to a twist.

Die für die Zwecke der Erfindung eingesetzten Fila­mentgarne können beispielsweise aus Polyester, wie Polyethylenterephthalat, Polyamid, wie Polyamid-6 oder Polyamid-66, Polyolefin, wie Polyethylen oder Polypropylen, ferner aus deren Mischungen oder Co­polymeren bestehen. Die Filamentgarne können jedoch auch aus anderen synthetischen thermoplastischen Polymeren oder deren Modifikationen bestehen.The filament yarns used for the purposes of the invention can, for example, consist of polyester, such as polyethylene terephthalate, polyamide, such as polyamide-6 or polyamide-66, polyolefin, such as polyethylene or polypropylene, and also consist of their mixtures or copolymers. However, the filament yarns can also consist of other synthetic thermoplastic polymers or their modifications.

Die Erfindung wird nachstehend anhand der Zeichnung näher erläutert.
Figur 1 zeigt schematisch und im Schnitt eine zur Durchführung des erfindungsgemäßen Verfahrens geeig­nete, übliche Vorrichtung zum Schlichten von Teilketten oder Ketten aus synthetischen Filamentgarnen.The invention is explained below with reference to the drawing.
FIG. 1 shows schematically and in section a conventional device for sizing partial chains or chains made of synthetic filament yarns that is suitable for carrying out the method according to the invention.

Eine vorbestimmte Anzahl von Spulen mit syntheti­schem thermoplastischem Filamentgarn, deren Filamen­te nicht völlig verstreckt sind, werden auf ein nicht dargestelltes herkömmliches Spulengatter aufgesteckt; von diesem Gatter werden die Garne unter konstanter Fadenzugkraft abgezogen und mit Hilfe eines ebenfalls nicht dargestellten Riets parallel angeordnet, wonach die so gebildete Schar aus Filamentgarnen über ein mit konstanter Geschwindigkeit rotierendes Walzen­system 1 und eine Walze 2 zu einem die Schlichtezone bildenden Schlichtetrog 3 geführt wird, der mit einer Schlichteflüssigkeit gefüllt ist. Die Garne werden danach über eine Tauchwalze 4 durch die Schlichte­flüssigkeit geleitet und von dort über eine Schlicht­walze 5 zur Quetschfuge zwischen der Schlichtwalze 5 und einer Abquetschwalze 6 geführt, wo die Schlich­teflüssigkeit aufgebracht und deren Überschuß gleich­zeitig abgequetscht wird. Von den Walzen 5 und 6 wer­den die Garne dann durch die Vortrockenzone bildende beheizte Vortrockner 7 und 8 geleitet, wo sie vorge­trocknet werden; von dort werden die Garne durch einen die Endtrockenzone bildenden Endtrockner 9 ge­führt, wo sie durch Führung über beheizte Trocken­zylinder 10 einer Endtrocknung unterzogen werden. Schließlich werden die - parallelen - Filamentgarne vom Endtrockner 9 zu einem Zettelbaum, Teilkettbaum oder Kettbaum 11 geführt, auf den sie aufgewickelt werden.A predetermined number of bobbins with synthetic thermoplastic filament yarn, the filaments of which are not fully drawn, are placed on a conventional bobbin, not shown; the yarns are drawn off from this creel under constant thread tension and arranged in parallel with the aid of a reed, also not shown, after which the sheet of filament yarns thus formed is guided via a roller system 1 rotating at constant speed and a roller 2 to a size trough 3 forming the size zone, which is filled with a sizing liquid. The yarns are then passed through a sizing roller 4 through the sizing liquid and from there via a sizing roller 5 to the nip between the sizing roller 5 and a squeeze roller 6, where the sizing liquid is applied and the excess thereof is squeezed off at the same time. From the rollers 5 and 6, the yarns then form through the predrying zone heated pre-dryer 7 and 8 passed where they are pre-dried; from there the yarns are passed through a final dryer 9 forming the final drying zone, where they are subjected to final drying by being guided over heated drying cylinders 10. Finally, the - parallel - filament yarns are guided from the end dryer 9 to a slip beam, partial warp beam or warp beam 11, on which they are wound up.

Die Walzen 5 und 6 rotieren mit einer Umfangsgeschwin­digkeit, die kleiner als die der Trockenzylinder 10 ist, wodurch die Filamente der Filamentgarne gemein­sam und gleichzeitig verstreckt werden, und zwar zwischen dem Walzenpaar 5, 6 und den Trockenzylin­dern 10, also in der Vortrockenzone bzw. im wesentli­chen in der Vortrockenzone.The rollers 5 and 6 rotate at a peripheral speed which is lower than that of the drying cylinder 10, whereby the filaments of the filament yarns are stretched together and simultaneously, namely between the pair of rollers 5, 6 and the drying cylinders 10, i.e. in the predrying zone or in essential in the pre-drying zone.

Das erfindungsgemäße Verfahren kann auch so durchge­führt werden, daß die Filamentgarne nicht direkt von auf einem Spulengatter aufgesteckten Spulen abgezogen werden, sondern beispielsweise von einem Baum oder mehreren Bäumen.The method according to the invention can also be carried out in such a way that the filament yarns are not drawn off directly from bobbins placed on a creel, but for example from one tree or several trees.

Die nach dem erfindungsgemäßen Verfahren hergestell­ten Ketten zeigen beim Weben ein hervorragendes Lauf­verhalten, und die aus diesen Ketten hergestellten Gewebe besitzen ausgezeichnete Eigenschaften bezüg­lich Farbaffinität, Farbgleichmäßigkeit, Festigkeits- und Dehnungseigenschaften, Ausbeulungsneigung und Längeneinsprung.The chains produced by the process according to the invention show excellent running behavior when weaving, and the fabrics produced from these chains have excellent properties with regard to color affinity, color uniformity, strength and elongation properties, tendency to bulge and length increase.

Die Erfindung wird ferner anhand der nachfolgenden Beispiele erläutert.The invention is further illustrated by the following examples.

Beispiel 1example 1

1.492 Spulen mit Polyamid-66-Filamentgarn 97,7 dtex f 17 (partially oriented yarn = POY), dessen Fila­mente also vororientiert waren, wurden auf ein her­kömmliches Spulengatter (der Firma Benninger, Schweiz) aufgesteckt; der Filamentquerschnitt war rund.
Die Reißfestigkeit des Filamentgarns betrug 35,2 cN/tex und die Bruchdehnung 75 %.1,492 bobbins with polyamide 66 filament yarn 97.7 dtex f 17 (partially oriented yarn = POY), the filaments of which were thus pre-oriented, were placed on a conventional bobbin creel (from Benninger, Switzerland); the filament cross section was round.
The tensile strength of the filament yarn was 35.2 cN / tex and the elongation at break was 75%.

Es wurde für dieses Beispiel eine Zettelschlichtma­schine der Firma Tsudakoma, Japan, eingesetzt, bei der durch einen einfachen Austausch eines Zahnrad­paares (Wechselradpaares) das Übersetzungsverhält­nis des Antriebs der dem Schlichtetrog zugeordneten Schlichtwalze so verändert worden war, daß die Trok­kenzylinder des Endtrockners mit einer um mindestens 33 % höheren Umfangsgeschwindigkeit rotieren konn­ten als die Schlichtwalze und die Abquetschwalze.For this example, a slip sizing machine from Tsudakoma, Japan, was used, in which the gear ratio of the drive of the sizing roller assigned to the sizing trough had been changed by simply replacing a pair of gearwheels so that the drying cylinder of the final dryer was at least 33 % higher peripheral speed than the size roller and the squeeze roller.

Die Garne wurden - unter konstanter Fadenzugkraft - mit Hilfe eines Abzugswalzensystems von dem Gatter mit einer Geschwindigkeit von 312,2 m/min abgezo­gen.The yarns were drawn off from the creel at a speed of 312.2 m / min using a draw-off roller system under constant thread tension.

Zwischen dem Gatter und dem Abzugswalzensystem be­fanden sich in Fadenlaufrichtung 2 Ösenriete und 1 Kamm, mit deren Hilfe die Garne parallel angeord­net wurden.Between the creel and the take-off roller system were 2 eyelet reeds and 1 comb in the direction of the thread, with the help of which the yarns were arranged in parallel.

Die so gebildete Filamentgarn-Schar wurde zu einem Schlichtetrog geleitet, der mit einer Schlichte­flüssigkeit gefüllt war.The filament yarn sheet thus formed was passed to a size trough which was filled with a size liquid.

Die Schlichteflüssigkeit bestand aus einer 11 %-igen wäßrigen Lösung (Flottenkonzentration) einer Acryl-­Schlichte (Sopronyl AR 41 der Firma Rhône-Poulenc, Frankreich) und hatte eine Temperatur von 42° C.The size liquid consisted of an 11% aqueous solution (liquor concentration) of an acrylic size (Sopronyl AR 41 from Rhône-Poulenc, France) and had a temperature of 42 ° C.

Die Garne wurden dann über eine in die Schlichte­flüssigkeit eintauchende Walze (Tauchwalze) gelei­tet und von dort über die ebenfalls in die Schlichteflüssigkeit eintauchende Schlichtwalze zur Quetschfuge zwischen dieser Schlichtwalze und einer Abquetschwalze geführt.
Der Quetschdruck zwischen der Schlichtwalze und der Abquetschwalze - beim Lauf - betrug 6,0 kg/cm² (6,0 daN/cm²).
Die Schlichtwalze und die Abquetschwalze rotier­ten mit einer Umfangsgeschwindigkeit von 312,9 m/min.The yarns were then passed over a roller immersed in the sizing liquid (immersion roller) and from there passed over the sizing roller also immersed in the sizing liquid to the pinch joint between this sizing roller and a squeezing roller.
The squeezing pressure between the sizing roller and the squeezing roller - when running - was 6.0 kg / cm² (6.0 daN / cm²).
The size roller and the squeeze roller rotated at a peripheral speed of 312.9 m / min.

Danach wurden die - parallelen - Garne durch zwei einander nachgeschaltete Vortrockner geführt, die beide eine Temperatur von 150° C hatten. Die durch die beiden Vortrockner gebildete Vortrockenzone war 11 m lang.The - parallel - yarns were then passed through two pre-dryers connected in series, both of which had a temperature of 150 ° C. The predrying zone formed by the two predryers was 11 m long.

Anschließend wurde die Schar der parallelen Fila­mentgarne durch einen Endtrockner geleitet, dessen erster Trockenzylinder mit einer Umfangsgeschwin­digkeit rotierte, die um 31,67 % höher war als die Umfangsgeschwindigkeit der Schlichtwalze und der Abquetschwalze.The family of parallel filament yarns was then passed through a final dryer, the first drying cylinder of which rotated at a peripheral speed which was 31.67% higher than the peripheral speed of the sizing roller and the squeeze roller.

Durch Führung über die fünf beheizten Trockenzylin­der des Endtrockners wurden die Garne einer End­trocknung unterzogen.
Die ersten vier Trockenzylinder des Endtrockners hatten je eine Temperatur von 135° C; der letzte Trockenzylinder des Endtrockners hatte eine Tem­peratur von 110° C.The yarns were subjected to final drying by being guided over the five heated drying cylinders of the final dryer.
The first four drying cylinders of the final dryer each had a temperature of 135 ° C; the last drying cylinder of the final dryer had a temperature of 110 ° C.

Die Verstreckung der Filamente der Filamentgarne fand im Bereich zwischen der Schlicht-/Abquetsch­walze und den Trockenzylindern des Endtrockners statt.The filaments of the filament yarns were stretched in the area between the sizing / squeezing roller and the drying cylinders of the final dryer.

Schließlich wurden die - parallelen - Filamentgar­ne vom Endtrockner zu einem Zettelbaum geführt, auf den sie aufgewickelt wurden.Finally, the - parallel - filament yarns were led from the final dryer to a slip of paper on which they were wound up.

Die während der Durchführung des erfindungsgemäßen Verfahrens ermittelten Fadenzugkräfte - gemessen am einzelnen Filamentgarn - waren die folgenden: 1. nach der Fadenbremse im Gatter 5 cN 2. vor den Abzugswalzen 12 cN 3. in der Vortrockenzone 70 cN 4. vor der Aufwicklung auf den Baum 17 cN The thread tensile forces determined during the implementation of the method according to the invention - measured on the individual filament yarn - were the following: 1. after the thread brake in the creel 5 cN 2. in front of the take-off rollers 12 cN 3. in the pre-drying zone 70 cN 4. before winding onto the tree 17 cN

Die so geschlichteten und verstreckten Filamentgar­ne hatten folgende Eigenschaften:
Titer      : 83,1 dtex (geschlichtet)
Reißfestigkeit      : 41,5 cN/tex
Bruchdehnung      : 40 %
Kochschrumpf (30 min in kochendem Wasser)      : 7,04 %
Schlichteauflage      : 4,66 %The filament yarns thus sized and drawn had the following properties:
Titer: 83.1 dtex (arbitrated)
Tear resistance: 41.5 cN / tex
Elongation at break: 40%
Cooking shrinkage (30 min in boiling water): 7.04%
Sizing pad: 4.66%

Die erhaltenen Filamentgarne hatten einen nahezu runden Garnquerschnitt und deren Filamentverbund war geschlossen. Die Kern- und Mantelschlichtung war praktisch vollständig.The filament yarns obtained had an almost round cross section and their filament composite was closed. The core and coat arbitration was practically complete.

Mehrere so erhaltene, auf Zettelbäumen aufgewik­kelte Teilketten wurden durch Assemblieren zu ei­ner auf einem Webkettbaum aufgewickelten Webkette vereinigt, die beim Weben ein ausgezeichnetes Laufverhalten zeigte.
Das aus dieser Webkette hergestellte Gewebe zeigte sehr gute Eigenschaften bezüglich Farbaffinität, Farbgleichmäßigkeit, Festigkeits- und Dehnungsei­genschaften, Ausbeulungsneigung und Längenein­sprung; insbesondere konnte mit dieser Webkette ein sehr weicher Griff des fertigen Gewebes er­reicht werden.Several partial chains obtained in this way, wound up on slip trees, were combined by assembly to form a woven chain wound on a warp beam, which showed excellent running behavior during weaving.
The fabric produced from this warp showed very good properties in terms of color affinity, color uniformity, strength and elongation properties, tendency to bulge and length increase; in particular, a very soft feel of the finished fabric could be achieved with this warp.

Beispiel 2Example 2

397 Spulen mit Polyethylenterephthalat-Filament­garn 120dtex f 22 (medium oriented yarn = MOY), dessen Filamente also vororientiert waren, wurden auf ein herkömmliches Spulengatter (der Firma Karl Mayer, Obertshausen, Bundesrepublik Deutschland) aufgesteckt; der Filamentquerschnitt war rund. Die Reißfestigkeit des Filamentgarns betrug 43,7 cN/tex und die Bruchdehnung 238,3 %.397 bobbins with 120dtex f 22 (medium oriented yarn = MOY) polyethylene terephthalate filament yarn, the filaments of which were thus pre-oriented, were placed on a conventional bobbin creel (from Karl Mayer, Obertshausen, Federal Republic of Germany); the filament cross section was round. The tensile strength of the filament yarn was 43.7 cN / tex and the elongation at break was 238.3%.

Es wurde für dieses Beispiel eine Zettelschlichtmaschine der Firma Sucker, Bundesrepublik Deutschland, ein­gesetzt, bei der durch den einfachen Einbau eines Wechselradgetriebes in die die Schlichtwalze an­treibende Gelenkwelle (Kardanwelle) das Übersetzungs­verhältnis des Antriebs der - dem Schlichtetrog zugeordneten - Schlichtwalze so verändert worden war, daß die Trockenzylinder des Endtrockners mit einer um mindestens 235 % höheren Umfangsgeschwin­digkeit rotieren konnten als die Schlichtwalze und die Abquetschwalze.For this example, a slip finishing machine from Sucker, Federal Republic of Germany, was used, in which the gear ratio of the drive of the finishing roller - assigned to the finishing trough - had been changed by the simple installation of a change gear in the cardan shaft driving the finishing roller the drying cylinders of the final dryer could rotate at least 235% more peripheral speed than the sizing roller and the squeeze roller.

Die Garne wurden - unter konstanter Fadenzugkraft - mit Hilfe eines Abzugswalzensystems von dem Gatter mit einer Geschwindigkeit von 45,2 m/min abgezogen.The yarns were drawn off from the creel at a speed of 45.2 m / min with the aid of a draw-off roller system under constant thread tension.

Zwischen dem Gatter und dem Abzugswalzensystem be­fanden sich in Fadenlaufrichtung 1 Ösenriet und 1 Kamm, mit deren Hilfe die Garne parallel angeord­net wurden.
Die so gebildete Filamentgarn-Schar wurde zu einem Schlichtetrog geleitet, der mit einer Schlichte­flüssigkeit gefüllt war.Between the creel and the take-off roller system were 1 eyelet reeds and 1 comb in the direction of the thread, with the help of which the yarns were arranged in parallel.
The filament yarn sheet thus formed was passed to a size trough which was filled with a size liquid.

Die Schlichteflüssigkeit bestand aus einer 20 bis 21 %-igen wäßrigen Lösung (Flottenkonzentration) einer Polyester-Schlichte (Gerol PS 25 der Firma Rhône-Poulenc, Frankreich) und hatte eine Tempera­tur von 74 bis 77° C.The size liquid consisted of a 20 to 21% aqueous solution (liquor concentration) of a polyester size (Gerol PS 25 from Rhône-Poulenc, France) and had a temperature of 74 to 77 ° C.

Die Garne wurden dann über eine in die Schlichte­flüssigkeit eintauchende Walze (Tauchwalze) gelei­tet und von dort über die die Oberfläche der Schlichteflüssigkeit leicht berührende Schlichtwal­ze zur Quetschfuge zwischen dieser Schlichtwalze und einer Abquetschwalze geführt.
Der Quetschdruck zwischen der Schlichtwalze und der Abquetschwalze - beim Lauf - betrug 600 daN (bezogen auf die gesamte Berührungslinie bzw. -fläche der beiden Walzen).
Die Schlichtwalze und die Abquetschwalze rotierten mit einer Umfangsgeschwindigkeit von 45,0 m/min.The yarns were then passed over a roller immersed in the sizing liquid (immersion roller) and from there via the sizing roller lightly touching the surface of the sizing liquid to the nip between this sizing roller and a squeezing roller.
The squeezing pressure between the sizing roller and the squeezing roller - during the run - was 600 daN (based on the total contact line or area of the two rollers).
The size roller and the squeeze roller rotated at a peripheral speed of 45.0 m / min.

Danach wurden die - parallelen - Garne durch zwei einander nachgeschaltete Vortrockner geführt, die beide eine Temperatur von 120° C hatten. Die durch die beiden Vortrockner gebildete Vortrockenzone war 10 m lang.The - parallel - yarns were then passed through two pre-dryers connected in series, both of which had a temperature of 120 ° C. The predrying zone formed by the two predryers was 10 m long.

Anschließend wurde die Schar der parallelen Fila­mentgarne durch einen Endtrockner geleitet, dessen erster Trockenzylinder mit einer Umfangsgeschwindig­keit rotierte, die um 221,3 % höher war als die Umfangsgeschwindigkeit der Schlichtwalze und der Abquetschwalze.
Durch Führung über die fünf beheizten Trockenzylin­der des Endtrockners wurden die Garne einer End­trocknung unterzogen.The family of parallel filament yarns was then passed through a final dryer, the first drying cylinder of which rotated at a peripheral speed which was 221.3% higher than the peripheral speed of the sizing roller and the squeeze roller.
The yarns were subjected to final drying by being guided over the five heated drying cylinders of the final dryer.

Die ersten vier Trockenzylinder des Endtrockners hatten je eine Temperatur von 145° C; der letzte Trockenzylinder des Endtrockners hatte eine Tempera­tur von 105° C.The first four drying cylinders of the final dryer each had a temperature of 145 ° C; the last drying cylinder of the final dryer had a temperature of 105 ° C.

Die Verstreckung der Filamente der Filamentgarne fand im Bereich zwischen der Schlicht-/Abquetsch­walze und den Trockenylindern des Endtrockners statt.The filaments of the filament yarns were stretched in the area between the sizing / squeezing roller and the drying cylinders of the final dryer.

Schließlich wurden die - parallelen - Filamentgar­ne vom Endtrockner zu einem Zettelbaum geführt, auf den sie aufgewickelt wurden.Finally, the - parallel - filament yarns were led from the final dryer to a slip of paper on which they were wound up.

Die während der Durchführung des erfindungsgemäßen Verfahrens ermittelten Fadenzugkräfte - gemessen am einzelnen Filamentgarn - waren die folgenden: 1. nach der Fadenbremse im Gatter 3,5 cN 2. vor den Abzugswalzen 3 cN 3. in der Vortrockenzone 38 cN 4. vor der Aufwicklung auf den Baum 11 cN The thread tensile forces determined during the implementation of the method according to the invention - measured on the individual filament yarn - were the following: 1. after the thread brake in the creel 3.5 cN 2. in front of the take-off rollers 3 cN 3. in the pre-drying zone 38 cN 4. before winding onto the tree 11 cN

Die so geschlichteten und verstreckten Filamentgar­ne hatten folgende Eigenschaften:
Titer      : 54,6 dtex (geschlichtet)
Reißfestigkeit      : 39,4 cN/tex
Bruchdehnung      : 29,1 %
Kochschrumpf (30 min in kochendem Wasser)      : 3,7 %
Schlichteauflage      : 5,5 %The filament yarns thus sized and drawn had the following properties:
Titer: 54.6 dtex (arbitrated)
Tear resistance: 39.4 cN / tex
Elongation at break: 29.1%
Cooking shrinkage (30 min in boiling water): 3.7%
Sizing pad: 5.5%

Die erhaltenen Filamentgarne hatten einen nahezu runden Garnquerschnitt und deren Filamentverbund war geschlossen. Die Kern- und Mantelschlichtung war praktisch vollständig.The filament yarns obtained had an almost round cross section and their filament composite was closed. The core and coat arbitration was practically complete.

Mehrere so erhaltene, auf Zettelbäumen aufgewickel­te Teilketten wurden durch Assemblieren zu einer auf einem Webkettbaum aufgewickelten Webkette ver­einigt, die beim Weben ein ausgezeichnetes Lauf­verhalten zeigte.
Das aus dieser Webkette hergestellte Gewebe zeigte sehr gute Eigenschaften bezüglich Farbaffinität, Farbgleichmäßigkeit, Festigkeits- und Dehnungsei­genschaften, Ausbeulungsneigung und Längenein­sprung.Several partial chains obtained in this way, wound on slip trees, were combined by assembly to form a woven chain wound on a warp beam, which showed excellent running behavior during weaving.
The fabric made from this warp showed very good properties in terms of color affinity, color uniformity, strength and elongation properties, tendency to bulge and length increase.

Für das Beispiel 1 gilt:
Das Ausgangsgarn (Polyamid-66-Filamentgarn 97,7 dtex f 17) war - bevor es für das erfindungsgemäße Verfahren eingesetzt wurde - lediglich einer sehr leichten Zwirnersatz-Behandlung - mit Hilfe einer Luftdüse zum Verflechten (Verwirren) der Filamente miteinander - unterzogen worden und hatte nur 1 bis 2 Verflechtungsstellen (Verwirrungsstellen oder Fixpunkte - vgl. dazu z.B. die deutsche Aus­legeschrift 16 60 267) pro m.The following applies to example 1:
The starting yarn (polyamide 66 filament yarn 97.7 dtex f 17) was - before it was used for the process according to the invention - only a very light thread replacement treatment - with the help of a Air nozzle for interlacing (tangling) the filaments with one another - and had only 1 or 2 interlacing points (confusing points or fixed points - see, for example, the German design specification 16 60 267) per m.

Für das Beispiel 2 gilt:
Das Ausgangsgarn (Polyethylenterephthalat-Filament­garn 120 dtex f 22) war keinerlei Zwirn- oder Zwirnersatz-Behandlung unterworfen worden.The following applies to example 2:
The starting yarn (polyethylene terephthalate filament yarn 120 dtex f 22) had not been subjected to any thread or thread replacement treatment.

Claims (3)

1. Verfahren zur Herstellung von auf Zettelbäumen oder Teilkettbäumen aufgewickelten Teilketten oder auf Kettbäumen aufgewickelten Ketten aus synthetischen Filamentgarnen, die im wesentlichen völlig ver­streckt und geschlichtet sind, nach dem als Aus­gangsmaterial eine Schar aus im Wesentlichen parallelen synthetischen thermoplastischen Fila­mentgarnen eingesetzt wird und diese Schar durch eine gegebenenfalls beheizte Schlichtezone geführt und dort geschlichtet, anschließend durch eine be­heizte Vortrockenzone geführt und dort vorgetrock­net, danach durch eine beheizte Endtrockenzone ge­führt und dort einer Endtrocknung unterzogen sowie schließlich auf Zettelbäume oder Teilkettbäume resp. Kettbäume aufgewickelt wird, dadurch gekenn­zeichnet, daß die Filamente der Filamentgarne der Schar des Ausgangsmaterials nicht völlig verstreckt sind und diese Filamente in der Vortrockenzone oder im wesentlichen in der Vortrockenzone gemein­sam und gleichzeitig verstreckt werden.1. A process for the production of partial chains or partial chains of synthetic filament yarns wound on warp beams or partial warp beams, which are essentially completely stretched and sized, according to which a sheet of essentially parallel synthetic thermoplastic filament yarns is used as the starting material and this sheet by a optionally heated sizing zone and finished there, then passed through a heated pre-drying zone and predried there, then passed through a heated final drying zone and subjected to final drying there and finally onto slip beams or partial warp beams or Warp beams is wound up, characterized in that the filaments of the filament yarns of the group of the starting material are not completely drawn and these filaments are drawn together and simultaneously in the pre-drying zone or essentially in the pre-drying zone. 2. Verfahren nach Anspruch 1, dadurch gekennzeich­net, daß die Filamentgarne Polyester-, Polyamid- oder Polyolefin-Filamentgarne sind.2. The method according to claim 1, characterized in that the filament yarns are polyester, polyamide or polyolefin filament yarns. 3. Verfahren nach Anspruch 1 oder 2, dadurch gekenn­zeichnet, daß das Verstrecken durch ein der Schlichtezone zugeordnetes Walzensystem und ein der Endtrockenzone zugeordnetes Walzensystem durchgeführt wird, wobei diese Walzensysteme mit unterschiedlichen Umfangsgeschwindigkeiten rotieren.3. The method according to claim 1 or 2, characterized in that the stretching is carried out by a roller system assigned to the size zone and by a roller system assigned to the final drying zone, these roller systems rotating at different peripheral speeds.
EP88110525A 1987-07-25 1988-07-01 Method for continuously sizing and stretching synthetic filaments Expired - Lifetime EP0301266B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88110525T ATE68536T1 (en) 1987-07-25 1988-07-01 PROCESS FOR CONTINUOUS SIZING AND DRAWING OF SYNTHETIC FILAMENT YARN.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3724751 1987-07-25
DE19873724751 DE3724751A1 (en) 1987-07-25 1987-07-25 METHOD FOR THE PRODUCTION OF PARTIAL CHAINS WRAPPED ON TRUNK TREATMENTS OR PARTIAL CHAINS OR ON CHAINS OF SYNTHETIC FILAMENT YARNS

Publications (2)

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EP0301266A1 true EP0301266A1 (en) 1989-02-01
EP0301266B1 EP0301266B1 (en) 1991-10-16

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US (1) US4858287A (en)
EP (1) EP0301266B1 (en)
JP (1) JPS6433233A (en)
AT (1) ATE68536T1 (en)
DE (2) DE3724751A1 (en)
DK (1) DK166918B1 (en)
ES (1) ES2026605T3 (en)
FI (1) FI883488A (en)
NO (1) NO883284L (en)
PT (1) PT88082A (en)

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JP2767479B2 (en) * 1990-01-31 1998-06-18 津田駒工業株式会社 Warp sizing machine
JPH07122193B2 (en) * 1991-09-21 1995-12-25 新雄 垣中 Sizer
US6301760B1 (en) 2000-02-14 2001-10-16 Guilford Mills, Inc. Method of selectively altering physical properties of an elastane filament
JP3517189B2 (en) * 2000-08-18 2004-04-05 津田駒工業株式会社 Warp sizing machine
US6643901B1 (en) * 2000-11-01 2003-11-11 Ppg Industries Ohio, Inc. Loom beams
FR2835826A1 (en) * 2002-02-14 2003-08-15 Rhodianyl COMPOSITE MATERIALS OBTAINED FROM HYDRAULIC BINDER AND ORGANIC FIBERS HAVING IMPROVED MECHANICAL BEHAVIOR
US6764764B1 (en) * 2003-05-23 2004-07-20 Honeywell International Inc. Polyethylene protective yarn
US20060253997A1 (en) * 2005-05-13 2006-11-16 Yen-Liang Yin Method for making flame-retardant blended fabric using acrylic yarns
US7370395B2 (en) * 2005-12-20 2008-05-13 Honeywell International Inc. Heating apparatus and process for drawing polyolefin fibers
RU2564622C1 (en) * 2014-05-13 2015-10-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ивановский государственный энергетический университет имени В.И. Ленина" (ИГЭУ) Sizing machine
CN108642779A (en) * 2018-05-16 2018-10-12 滁州市大茆皮革机械有限公司 A kind of mixing apparatus of synthetic leather production base fabric and solution

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Also Published As

Publication number Publication date
FI883488A (en) 1989-01-26
US4858287A (en) 1989-08-22
DE3865574D1 (en) 1991-11-21
DE3724751A1 (en) 1989-02-09
FI883488A0 (en) 1988-07-22
DK411588A (en) 1989-01-26
PT88082A (en) 1989-06-30
ATE68536T1 (en) 1991-11-15
DK166918B1 (en) 1993-08-02
ES2026605T3 (en) 1992-05-01
NO883284D0 (en) 1988-07-22
NO883284L (en) 1989-01-26
DK411588D0 (en) 1988-07-22
EP0301266B1 (en) 1991-10-16
JPS6433233A (en) 1989-02-03

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