CH410266A - Device for processing drawn threads made of high molecular weight aromatic polyesters - Google Patents

Device for processing drawn threads made of high molecular weight aromatic polyesters

Info

Publication number
CH410266A
CH410266A CH1434462A CH1434462A CH410266A CH 410266 A CH410266 A CH 410266A CH 1434462 A CH1434462 A CH 1434462A CH 1434462 A CH1434462 A CH 1434462A CH 410266 A CH410266 A CH 410266A
Authority
CH
Switzerland
Prior art keywords
godet
thread
threads
molecular weight
high molecular
Prior art date
Application number
CH1434462A
Other languages
German (de)
Inventor
Rosl Dr Kretsch
Original Assignee
Hoechst Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoechst Ag filed Critical Hoechst Ag
Publication of CH410266A publication Critical patent/CH410266A/en

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P7/00—Dyeing or printing processes combined with mechanical treatment
    • D06P7/005—Dyeing combined with texturising or drawing treatments
    • 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
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/221—Preliminary treatments
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/229—Relaxing
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/60—Optical bleaching or brightening
    • D06L4/657—Optical bleaching or brightening combined with other treatments, e.g. finishing, bleaching, softening, dyeing or pigment printing
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/144—Alcohols; Metal alcoholates
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/144—Alcohols; Metal alcoholates
    • D06M13/148—Polyalcohols, e.g. glycerol or glucose
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/152—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen having a hydroxy group bound to a carbon atom of a six-membered aromatic ring
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/368—Hydroxyalkylamines; Derivatives thereof, e.g. Kritchevsky bases
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/52—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment combined with mechanical treatment
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/327—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof
    • D06M15/333—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof of vinyl acetate; Polyvinylalcohol
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/34—Material containing ester groups
    • D06P3/52—Polyesters
    • D06P3/54—Polyesters using dispersed dyestuffs
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/22—Effecting variation of dye affinity on textile material by chemical means that react with the fibre
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P7/00—Dyeing or printing processes combined with mechanical treatment

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Artificial Filaments (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Description

  

  Vorrichtung     zur    Aufarbeitung von     verstreckten    Fäden  aus     hochmolekularen        aromatischen    Polyestern    Die Aufarbeitung von Fäden aus hochmolekula  ren aromatischen     Polyestern    erfolgte bisher in dis  kontinuierlicher Weise, wobei die     verstreckten    Fäden  zunächst     gezwirnt    und auf Spulen aufgewickelt wur  den, deren Kern aus einem nachgiebigen Drahtgefüge  besteht. Auf diesen Spulen wurden die Fäden bisher  einer längeren Dampfbehandlung ausgesetzt, wobei  die auf der Spule befindlichen Polyesterfäden  schrumpfen konnten und     gleichzeitig        fixiert    wurden.

    Nach diesem     Thermofixierungsprozess    wurden die  Fäden auf neue verkaufsfähige Spulen aufgewickelt.  



  Gegenstand der vorliegenden Erfindung ist eine       Vorrichtung,    mit     Hilfe        deren    der gesamte     Arbeitspro-          zess,    d. h. die Aufarbeitung von     verstreckten    Fäden  bis zur verkaufsfertigen Form, kontinuierlich in  einem Arbeitsgang durchgeführt werden kann.

   Ge  genstand der Erfindung ist eine Vorrichtung zur Auf  arbeitung von     verstreckten    Fäden aus hochmolekula  ren aromatischen Polyestern, welche     gekennzeichnet     ist durch eine sich schnell drehende Spindel, einen  Fadenführer, eine     Umlenkrolle,    einen Behälter, eine  heizbare     Galette    mit     Verlegewalze,    einen Heizkasten,  eine     Abzugsgalette    mit     Verlegewalze,    eine     Streckga-          lette    mit     Verlegewalze,

      eine     Umlenkrolle    und     eine          Aufwickelspule    mit     Changierung.     



  Die Fäden werden zweckmässig in einem konti  nuierlichen Prozess zunächst gezwirnt,     dann    durch  eine Lösung, Dispersion oder Emulsion eines oder  mehrerer Stoffe geleitet, die     zwischen    120 und  350  C sieden, hierauf werden die Fäden vorzugs  weise über zwei als     Fixpunkte    dienende, verschieden  schnell angetriebene     Galetten,    die von dem Faden  mehrmals umschlungen werden und von denen die  erste     Galette    geheizt ist, weitergeleitet und zwischen    diesen     Galetten        allseitig        gleichmässig    auf eine Tem  peratur zwischen 220 und 350  C, vorzugsweise zwi  schen 250 und 280  C, während einer Zeit von 0,

  1  bis 5 Sekunden, vorzugsweise 0,2 bis 1 Sekunde, er  hitzt und gleichzeitig um einen einstellbaren Betrag       von    5     bis        35        %,        vorzugsweise        10        bis        25        %,        ge-          schrumpft.        Daraufhin    können die Fäden um densel  ben oder um einen grösseren Betrag oder um einen       kleineren    Betrag erneut     verstreckt    und anschliessend  aufgespult werden.

   Im allgemeinen wird das     Nach-          verstrecken    zweckmässig so durchgeführt, dass die  fertigen Fäden den für ihre weitere Verarbeitung in  der Weberei und in der Wirkerei günstigsten     Koch-          oder        Thermoschrumpf    besitzen, so dass sich     eine          Fixierung    der so hergestellten Fäden erübrigt. Unter  dem Ausdruck      Kochschrumpf     wird der Schrumpf  betrag, ausgedrückt     in    Prozenten, verstanden, den ein  Faden beim Eintauchen in kochendes Wasser erhält.

    Unter dem Ausdruck      Thermoschrumpf     soll ver  standen werden der     Schrumpfbetrag    eines Fadens  nach dem     Einbringen    in 200  C heisse Luft bei einer  Zeitdauer von wenigen Sekunden. Sofern die Fäden  um denselben oder um einen höheren Betrag     nach-          verstreckt    werden, ist es zweckmässig, die     nachver-          streckten    Fäden noch mit     Hilfe    von Wasserdampf  oder von trockener heisser Luft zu     behandeln.     



  Drei beispielsweise Ausführungsformen der erfin  dungsgemässen Vorrichtung sind     in    der Zeichnung  dargestellt.  



  Bei der in     Fig.    1 dargestellten Vorrichtung wer  den die     verstreckten    Fäden aus linearen aromati  schen Polyestern zunächst auf einen     Kops        aufgewik-          kelt,        anschliessend    wird dieser     Kops    auf eine sich  schnell drehende Spindel 1 aufgesteckt und der      Faden nach oben abgezogen.

   Bei diesem     Prozess    wird  der Faden     gezwirnt,    anschliessend läuft er über einen  Fadenführer 2, eine     Umlenkrolle    3, worauf er durch  eine Behandlungsflüssigkeit, die sich in einem Behäl  ter 4     befindet,    geführt wird; anschliessend wird der  Faden an der geheizten     Galette    5 getrocknet und  durch den     Heizkasten    7, dessen Temperatur 220 bis  350  C beträgt, geleitet.

   Zwischen den als Fixpunkte  dienenden     Galetten    5 und 8, die von dem Faden  mehrmals umlaufen werden, kann der Faden um       einen        Betrag        zwischen    5     und        35        %        schrumpfen.     Daraufhin     läuft    der Faden zu einer weiteren     Galette     10, die eine höhere Geschwindigkeit hat als die       Galette    8,

   so dass der Faden zwischen     Galette    8 und       Galette        10        um    5     bis        35        %        verstreckt        wird.        Anschlies-          send        wird    der Faden auf die Spule 14 aufgewickelt.  



  Eine weitere     Ausführungsform    der     erfindungsge-          mässen    Vorrichtung ist in Figur 2     erläutert:     Der Faden wird ebenso wie bei Figur 1 gezwirnt  und durch die Behandlungsflüssigkeit     geführt.    An  schliessend wird er auf der geheizten     Galette    5 ge  trocknet, durchläuft anschliessend den Heizkanal 7  (Temperatur 220 bis 350  C) und gelangt dann auf  die langsamer laufende     Galette    B. Zwischen     Galette    5  und     Galette    8 kann der Faden um jeden gewünschten  Betrag schrumpfen.

   Daraufhin wird der Faden auf  eine dritte     Galette    10 geleitet, die als     Stufengalette     auf die     Galette    5 aufgesetzt ist. Die     Stufengalette    10       läuft    schneller als     die        Galette    8, so dass der Faden  zwischen der     Galette    8 und der     Stufengalette        ver-          streckt    wird, und zwar in einem kleineren Ausmass  als er vorher schrumpfen konnte.

   Nach dem     Ver-          strecken    wird der Faden über die     Umlenkrolle    12  und die     Changierung    13 auf die Spule 14     aufgewik-          kelt.    Die Temperatur der     Trockengalette    5 beträgt       zweckmässig    50 bis 120  C.  



  Der Faden wird wie bereits     erwähnt    durch eine  Lösung, Dispersion oder Emulsion mindestens eines  Stoffes geleitet, der zwischen 120 und 350  C siedet  und der sich entweder später durch Waschen wieder  entfernen lässt oder der den Charakter einer     Präpa-          ration    besitzt und infolgedessen nicht     stört,    wenn er  auf dem Faden verbleibt. Die chemische Natur dieses  Stoffes spielt nur eine untergeordnete Rolle. Aus  schlaggebend sind seine physikalischen Eigenschaf  ten, und aus diesem Grunde sind zur     Durchführung     des Verfahrens     Verbindungen    der verschiedensten  Stoffklassen geeignet. Wichtig ist, dass die Stoffe zwi  schen 120 und 350  C sieden.  



  Bei einem Zusatz von Farbstoffen zu der Be  handlungsflüssigkeit erhält man ferner gleichzeitig  gefärbte Fäden, oder es     wird    bei     Mitverwendung     optischer Aufheller, z. B. einem Stoff der Formel  
EMI0002.0066     
    eine     Verbesserung    des     Weissgrades    der Fäden erzielt.    Ausserdem ist es möglich, auf den Faden       Schlichtemittel        aufzubringen,    wenn das Behandlungs  bad     Schlichtemittel    enthält. So werden z. B. mit  Emulsionen von sauren     Polyacrylsäureestern    hervor  ragend geschlichtete Fäden erhalten.  



  Wenn man eine besonders     gute        Anfärbbarkeit    der  Fäden erzielen will und gleichzeitig ihren Griff und  ihren Glanz günstig     beeinflussen    möchte, ist es  zweckmässig, statt Fäden mit rundem Querschnitt,  solche mit einem Querschnittprofil zu verwenden, die  eine grössere Faseroberfläche aufweisen. In Frage  kommen Dreiecks-, Stern-, Hantel- oder andere Pro  file. Diese Fäden nehmen unter denselben Behand  lungsbedingungen mehr Farbstoff auf als Fäden mit  rundem Querschnitt, so dass es möglich ist, auch sehr  dunkle Färbungen ohne     Mitverwendung    von     Carriern     zu     erhalten.     



  In besonderen Fällen kann es auch vorteilhaft  sein, mit Fäden aus     Polyäthylenterephthalat    von  niedrigerer Viskosität, z. B. von der spezifischen Vis  kosität 0,450 bis 0,700 zu arbeiten. Mit spezifischer  Viskosität ist diejenige Viskosität gemeint, die man  mit einer 1     ohigen    Lösung der Polyester in einem       Lösungsmittelgemisch    aus 60 Teilen Phenol und 40  Teilen     Tetrachloräthan    bei 25  C bestimmt.

   Diese  Fäden lassen sich unter milderen Behandlungsbedin  gungen, d. h. bei niedrigeren Temperaturen und ge  ringerem     Schrumpf,    bereits um denselben oder um  einen höheren Prozentsatz in ihrer     Farbstoffaufnah-          mefähigkeit    verbessern als Fäden aus     Polyäthylente-          rephthalat    der spezifischen Viskosität 0,800.  



  Durch die beiliegende Figur 3 wird eine weitere  Ausführungsform der erfindungsgemässen Vorrich  tung erläutert. Ein     verstreckter    Polyesterfaden wird  mit Hilfe einer Zwirnspindel 1 gezwirnt, durchläuft  dann anschliessend den Fadenführer 2 und das Be  handlungsbad 4, das mit einer Lösung, einer Disper  sion oder einer Emulsion der eingangs beschriebenen  Stoffe beschickt ist. Der Faden wird mit diesen Stof  fen getränkt und anschliessend auf der     geheizten          Galette    5 getrocknet. Er durchläuft den Heizkasten 7,  in     welchem:    er um 5 bis 35      /o    schrumpfen kann, weil  die     Galette    8 um diesen Betrag langsamer läuft als  die     Galette    5.

   Daraufhin wird der Faden auf eine  heizbare     Galette    10 geleitet, die als     Stufengalette    auf  die     Galette    5 aufgesetzt ist. Diese     Stufengalette    kann  einen ebenso grösseren oder kleineren Durchmesser  wie die     Galette    5 haben. Sie     läuft    schneller als die       Galette    8, so dass der Faden zwischen     Galette    8 und       Galette    10 um einen einstellbaren Betrag     verstreckt     wird. Nach dem     Verstrecken    wird der Faden erneut  durch einen Heizkanal 12 geleitet, der auf 220  bis  350  C geheizt ist.

   Er gelangt dann über die     Umlenk-          rolle    13 und die     Changierung    14 zur     Aufspulrolle     15, die eine geringere Umfangsgeschwindigkeit auf  weist als die     Galette    10, so dass der Faden auf der  Strecke zwischen der     Galette    10 und der     Aufspulung     15 im Heizkanal 12 um einen einstellbaren Betrag  erneut     schrumpfen    kann.     Führt    man beide Schrumpf  vorgänge bei derselben Temperatur durch, so kann      anstelle der beiden     Heizkästen    7 und 12 auch nur ein  Heizkasten Verwendung finden, den dann der Faden  zweimal durchläuft.  



  Die mit der erfindungsgemässen Vorrichtung her  gestellten Fäden sind veredelt und lassen sich mit       Dispersionsfarbstoffen    besonders gut anfärben.     Aus-          serdem    besitzen die behandelten Fäden gute textile  Eigenschaften. So können z. B. ihre Schrumpfwerte  je nach dem. Grade der     Wiederverstreckung        beliebig     eingestellt werden. Die für viele Zwecke bei der wei  teren Verarbeitung unerwünschte hohe Dehnung wird  durch das erneute     Verstrecken    geringer.



  Apparatus for processing stretched threads from high molecular weight aromatic polyesters The processing of threads made from hochmolecular aromatic polyesters has so far been carried out in a continuous manner, the stretched threads initially being twisted and wound onto bobbins whose core consists of a flexible wire structure. The threads on these bobbins were previously subjected to a longer steam treatment, whereby the polyester threads on the bobbin could shrink and were fixed at the same time.

    After this heat setting process, the threads were wound onto new salable spools.



  The subject of the present invention is a device with the aid of which the entire work process, d. H. the processing of drawn threads up to the ready-to-sell form can be carried out continuously in one operation.

   The subject of the invention is a device for processing drawn threads made of hochmolekula Ren aromatic polyesters, which is characterized by a rapidly rotating spindle, a thread guide, a pulley, a container, a heatable godet with laying roller, a heating box, a godet with Laying roller, a stretching pallet with laying roller,

      a pulley and a take-up reel with traversing.



  The threads are expediently first twisted in a continuous process, then passed through a solution, dispersion or emulsion of one or more substances that boil between 120 and 350 C, then the threads are preferably driven via two godets that serve as fixed points and are driven at different speeds , which are looped around several times by the thread and of which the first godet is heated, forwarded and between these godets evenly on all sides to a temperature between 220 and 350 C, preferably between 250 and 280 C, for a time of 0,

  1 to 5 seconds, preferably 0.2 to 1 second, it heats and at the same time shrinks by an adjustable amount of 5 to 35%, preferably 10 to 25%. The threads can then be stretched again by the same amount or by a larger amount or by a smaller amount and then wound up.

   In general, post-stretching is expediently carried out in such a way that the finished threads have the most favorable boiling or thermal shrinkage for their further processing in weaving and knitting, so that there is no need to fix the threads produced in this way. The expression boiling shrinkage is understood to mean the amount of shrinkage, expressed as a percentage, that a thread receives when immersed in boiling water.

    The term thermal shrinkage should be understood to mean the amount of shrinkage of a thread after it has been placed in hot air at 200 C for a period of a few seconds. If the threads are re-drawn by the same or a higher amount, it is expedient to treat the re-drawn threads with the aid of steam or dry, hot air.



  Three exemplary embodiments of the device according to the invention are shown in the drawing.



  In the device shown in FIG. 1, the drawn threads made of linear aromatic polyesters are first wound onto a cop, then this cop is attached to a rapidly rotating spindle 1 and the thread is pulled off upwards.

   In this process, the thread is twisted, then it runs over a thread guide 2, a pulley 3, whereupon it is guided through a treatment liquid that is in a Behäl ter 4; the thread is then dried on the heated godet 5 and passed through the heating box 7, the temperature of which is 220 to 350.degree.

   The thread can shrink by an amount between 5 and 35% between the godets 5 and 8, which are used as fixed points and which are rotated several times by the thread. The thread then runs to a further godet 10, which has a higher speed than the godet 8,

   so that the thread between godet 8 and godet 10 is stretched by 5 to 35%. The thread is then wound onto the bobbin 14.



  A further embodiment of the device according to the invention is explained in FIG. 2: the thread is twisted as in FIG. 1 and passed through the treatment liquid. Then it is dried on the heated godet 5, then passes through the heating channel 7 (temperature 220 to 350 C) and then reaches the slower running godet B. Between godet 5 and godet 8, the thread can shrink by any desired amount.

   The thread is then directed to a third godet 10, which is placed on the godet 5 as a step godet. The step godet 10 runs faster than the godet 8, so that the thread is stretched between the godet 8 and the step godet, to a smaller extent than it was previously able to shrink.

   After stretching, the thread is wound onto the bobbin 14 via the deflecting roller 12 and the traversing mechanism 13. The temperature of the drying godet 5 is expediently 50 to 120 C.



  As already mentioned, the thread is passed through a solution, dispersion or emulsion of at least one substance which boils between 120 and 350 C and which can either be removed later by washing or which has the character of a preparation and therefore does not interfere if it remains on the thread. The chemical nature of this substance only plays a subordinate role. Its physical properties are decisive, and for this reason compounds of the most varied classes of substances are suitable for carrying out the process. It is important that the substances boil between 120 and 350 C.



  When dyes are added to the treatment liquid, colored threads are also obtained at the same time, or when optical brighteners are used, e.g. B. a substance of the formula
EMI0002.0066
    an improvement in the whiteness of the threads is achieved. It is also possible to apply sizing agents to the thread if the treatment bath contains sizing agents. So z. B. obtained excellent sized threads with emulsions of acidic polyacrylic acid esters.



  If you want to achieve a particularly good dyeability of the threads and at the same time want to influence their feel and their gloss favorably, it is advisable to use threads with a cross-sectional profile that have a larger fiber surface instead of threads with a round cross-section. Triangle, star, dumbbell or other profiles are possible. Under the same treatment conditions, these threads absorb more dye than threads with a round cross-section, so that it is possible to obtain even very dark colors without using carriers.



  In special cases, it may also be advantageous to use threads made of polyethylene terephthalate of lower viscosity, e.g. B. to work from the specific Vis viscosity 0.450 to 0.700. Specific viscosity means that viscosity which is determined at 25 ° C. with a 1 oh solution of the polyester in a solvent mixture of 60 parts of phenol and 40 parts of tetrachloroethane.

   These threads can be used under milder treatment conditions; H. at lower temperatures and less shrinkage, their dye absorption capacity is already improved by the same or a higher percentage than threads made of polyethylene terephthalate with a specific viscosity of 0.800.



  The enclosed FIG. 3 explains a further embodiment of the device according to the invention. A drawn polyester thread is twisted using a twisting spindle 1, then passes through the thread guide 2 and the treatment bath 4, which is charged with a solution, a dispersion or an emulsion of the substances described above. The thread is soaked in these fabrics and then dried on the heated godet 5. It runs through the heating box 7, in which: it can shrink by 5 to 35 / o because the godet 8 runs slower than the godet 5 by this amount.

   The thread is then directed to a heatable godet 10, which is placed on the godet 5 as a step godet. This step godet can have a larger or smaller diameter than the godet 5. It runs faster than the godet 8, so that the thread between godet 8 and godet 10 is stretched by an adjustable amount. After drawing, the thread is again passed through a heating channel 12 which is heated to 220 to 350.degree.

   It then arrives via the deflecting roller 13 and the traversing 14 to the winding roller 15, which has a lower peripheral speed than the godet 10, so that the thread on the path between the godet 10 and the winding 15 in the heating channel 12 by an adjustable amount can shrink again. If both shrinking processes are carried out at the same temperature, only one heating box can be used instead of the two heating boxes 7 and 12, through which the thread then passes twice.



  The threads produced with the device according to the invention are refined and can be dyed particularly well with disperse dyes. In addition, the treated threads have good textile properties. So z. B. their shrinkage values depending on the. Degree of re-stretching can be set arbitrarily. The high elongation, which is undesirable for many purposes in further processing, is reduced by the renewed stretching.

Claims (1)

PATENTANSPRUCH Vorrichtung zur Aufarbeitung von verstreckten Fäden aus hochmolekularen aromatischen Poly estern, gekennzeichnet durch eine sich schnell dre hende Spindel (1), einen Fadenführer (2), eine Um- lenkrolle (3), einen Behälter (4), eine heizbare Galette (5) mit Verlegewalze (6), einen Heizkasten (7), eine Abzugsgalette (8) mit Verlegewalze (9), eine Streck- galette (10) mit Verlegewalze (11), PATENT CLAIM Device for processing drawn threads made of high molecular weight aromatic polyester, characterized by a rapidly rotating spindle (1), a thread guide (2), a deflection roller (3), a container (4), a heatable godet (5 ) with laying roller (6), a heating box (7), a take-off godet (8) with laying roller (9), a stretching godet (10) with laying roller (11), eine Umlenkrolle (12) und eine Aufwickelspule (14) mit Changierung (13). UNTERANSPRÜCHE 1. Vorrichtung nach Patentanspruch, dadurch gekennzeichnet, dass die Streckgalette (10) als Stu- fengalette ausgebildet und in. axialer Richtung auf der heizbaren Galette (5) angeordnet ist. 2. Vorrichtung nach Unteranspruch 1, dadurch gekennzeichnet, dass nach der Stufengalette (10) ein weiterer Heizkanal (12) angeordnet ist. a deflection roller (12) and a take-up spool (14) with traversing (13). SUBClaims 1. Device according to claim, characterized in that the stretch godet (10) is designed as a step godet and is arranged in the axial direction on the heatable godet (5). 2. Device according to dependent claim 1, characterized in that a further heating channel (12) is arranged after the step godet (10).
CH1434462A 1960-01-12 1962-02-08 Device for processing drawn threads made of high molecular weight aromatic polyesters CH410266A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEF0030270 1960-01-12
DEF0033189 1961-02-11
DEF0033434 1961-03-17

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CH410266A true CH410266A (en) 1966-03-31

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CH29561A CH368263A (en) 1960-01-12 1961-01-10 Process for the processing of drawn threads made of high molecular weight aromatic polyesters
CH155062A CH384129A (en) 1960-01-12 1962-02-08 Process for processing hidden threads made of high molecular weight aromatic polyesters
CH1434462A CH410266A (en) 1960-01-12 1962-02-08 Device for processing drawn threads made of high molecular weight aromatic polyesters

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CH29561A CH368263A (en) 1960-01-12 1961-01-10 Process for the processing of drawn threads made of high molecular weight aromatic polyesters
CH155062A CH384129A (en) 1960-01-12 1962-02-08 Process for processing hidden threads made of high molecular weight aromatic polyesters

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US (2) US3166886A (en)
CH (3) CH368263A (en)
GB (2) GB975814A (en)
NL (3) NL274543A (en)

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GB969259A (en) 1964-09-09
NL274543A (en)
US3159964A (en) 1964-12-08
CH368263A (en) 1962-11-30
CH155062A4 (en) 1964-07-31
NL259992A (en)
GB975814A (en) 1964-11-18
US3166886A (en) 1965-01-26
CH384129A (en) 1965-01-29
NL124936C (en)

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