EP0144818B1 - Method and apparatus for mercerizing textile webs or the like - Google Patents

Method and apparatus for mercerizing textile webs or the like Download PDF

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Publication number
EP0144818B1
EP0144818B1 EP84113681A EP84113681A EP0144818B1 EP 0144818 B1 EP0144818 B1 EP 0144818B1 EP 84113681 A EP84113681 A EP 84113681A EP 84113681 A EP84113681 A EP 84113681A EP 0144818 B1 EP0144818 B1 EP 0144818B1
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European Patent Office
Prior art keywords
treatment
scouring
fabric webs
liquor
compartments
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP84113681A
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German (de)
French (fr)
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EP0144818A1 (en
Inventor
Max Stuhlmiller
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Babcock Textilmaschinen GmbH
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Babcock Textilmaschinen GmbH
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Priority to AT84113681T priority Critical patent/ATE41450T1/en
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Publication of EP0144818B1 publication Critical patent/EP0144818B1/en
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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
    • D06B7/00—Mercerising, e.g. lustring by mercerising
    • D06B7/08—Mercerising, e.g. lustring by mercerising of fabrics of indefinite length

Definitions

  • the invention relates to a method and a system for boiling, in particular.
  • Heavy and / or wrinkle-sensitive textile webs or the like made of cotton or cotton-polyester mixtures.
  • the object of the present invention is now to be achieved in a boil-off process to shorten the treatment time during the boil-off process so considerably that a space-consuming and costly temporary storage for the boil-off process can be dispensed with entirely.
  • the product webs first undergo a washing treatment in a decoction liquor which is continuously pumped around and filtered during the treatment, with an alkali concentration of about 60 g / 1 or more, preferably about 80 g / l NaOH solid, which is kept constant by continuous addition of a defined amount of fresh treatment liquor, for a period of about 30-40 seconds at a temperature of about 95 ° C., before being washed out at a temperature of likewise about 95 ° C and a subsequent cooling, the webs are fed for further processing.
  • the further treatment can be an impregnation treatment for subsequent cold bleaching, but it can also be a simple washout treatment for the residual amount of NaOH contained in the webs before the subsequent docking.
  • the decoction units for the material webs can consist of two consecutive decoction compartments with a light intermediate squeezing mechanism between the two decoction compartments and a heavy final crimping mechanism behind the second decoction compartment, through which the decoction liquor, in its supply line to the decoction compartments, has an automatic metering unit for the addition of fresh boiling liquor is switched on, passed through in cross-flow to the direction of travel of the fabric and passed through a filter before being reintroduced into the treatment, and the washing unit has two washing compartments connected in series with a slight squeezing mechanism between the two washing compartments and a heavy final squeezing mechanism behind the second washing compartment .
  • the material web 10 is introduced from a winder via an insertion unit 11 into a first boiling compartment 12 and, after being squeezed in between by a light squeeze mechanism 14, is further processed in a further boiling compartment 13.
  • the decoction liquor is guided through the decoction compartments countercurrent to the web run.
  • the liquor is continuously pumped around, this being passed through a filter 24, through which coarse contaminants are removed from the decoction liquor. So that the liquor concentration remains constant, an automatic dosing device is connected to the decoction liquor guide line 25, through which a defined amount of fresh decoction liquor is entered into the liquor flow.
  • the boil-off liquor is largely removed from the material web by a heavy squeeze mechanism 15 the material web is then fed to the first washing unit 16, in which sodium hydroxide solution and contaminants are washed out. After a slight intermediate squeezing in a squeeze unit 18, the web is passed through a further washout compartment 17 and finally dewatered by another heavy squeeze unit 19. The final concentration after the last compartment is adjusted so that the remaining amount of NaOH in the impregnation compartment downstream of the cooling and evaporation unit 20 is sufficient for the cold bleaching.
  • the impregnation compartment 21, which is followed by the squeeze mechanism 22, is also used as a washing compartment for washing out the remaining amount of NaOH before the web 10 is taken up by a storage roll 23.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

1. Method for scouring in particular heavy and/or crease-prone textile fabric webs or similar, made of cotton or cotton-polyester blends, by which the fabric webs, if required subsequently to a singeing and possibly desizing treatment for which the fabric webs are initially subjected to a washing treatment in scouring liquor which is continually being recirculated and at the same time filtered, with a lye solution concentration of around 60 g/litre NaOH solid or more, the concentration of which is maintained by a specified volume of fresh treatment liquor being continuously added, are subjected to a temperature of approx. 95 degrees C for about 30 to 40 seconds before the fabric webs, after a rinsing treatment at a temperature also around 95 degrees C and subsequent cooling down, are subjected to a further treatment.

Description

Die Erfindung betrifft ein Verfahren sowie eine Anlage zum Abkochen von insbes. schweren und/oder faltenempfindlichen textilen Warenbahnen oder dergl. aus Baumwolle oder Baumwoll-Polyester-Gemischen.The invention relates to a method and a system for boiling, in particular. Heavy and / or wrinkle-sensitive textile webs or the like made of cotton or cotton-polyester mixtures.

Schwere und/oder faltenempfindliche Artikel wie z. B. Gabardine, Einlagestoffe u. ä. aus Baumwolle und Polyester-Baumwolle können nur in gebundener Warenführung abgekocht werden, um Faltenmarkierungen beim nachfolgenden Färbeprozeß zu vermeiden. Der Abkochprozeß wird deshalb entweder diskontinuierlich auf Jiggern oder Pad-Roll-Anlagen oder kontinuierlich in Walzendämpfern mit großem Wareninhalt durchgeführt.Heavy and / or wrinkle sensitive items such. B. Gabardine, interlinings u. Ä. Made of cotton and polyester-cotton can only be boiled in a bound manner to avoid wrinkle marks in the subsequent dyeing process. The boiling process is therefore carried out either discontinuously on jiggers or pad-roll systems or continuously in roller dampers with a large product content.

Während bei der diskontinuierlichen Behandlung genügend Zeit für eine optimale Säuberung der Ware zur Verfügung steht, ist dies bei der kontinuierlichen Arbeitsweise nicht der Fall. Hier liegen die wirtschaftlich vertretbaren Verweilzeiten bei max. 3 Minuten. Das bedeutet den Einsatz eines Dämpfers mit beispielsweise 200 m Inhalt für eine Produktionsgeschwindigkeit . von 65 m/min.While there is sufficient time for an optimal cleaning of the goods during the discontinuous treatment, this is not the case with the continuous operation. Here the economically justifiable residence times are max. 3 minutes. This means the use of a damper with, for example, 200 m content for a production speed. of 65 m / min.

Es hat nicht an Bemühungen gefehlt, durch Erhöhung der NaOH-Konzentration oder der Warentemperatur (im Überdruckdämpfer) die Verweilzeit zu verkürzen, um die Baugröße der Reaktionspeicher zu verringern. Der Erfolg der dazu bekannt gewordenen Maßnahmen war jedoch bisher gering.Efforts have been made to shorten the dwell time by increasing the NaOH concentration or the temperature of the goods (in the pressure damper) in order to reduce the size of the reaction memories. However, the success of the measures that have become known has so far been low.

Durch die vorliegende Erfindung soll nun die Aufgabe gelöst werden, bei einem Abkochverfahren die Behandlungszeit beim Abkochvorgang so erheblich zu verkürzen, daß auf einen platz- und kostenaufwendigen Verweilspeicher für den Abkochvorgang ganz verzichtet werden kann.The object of the present invention is now to be achieved in a boil-off process to shorten the treatment time during the boil-off process so considerably that a space-consuming and costly temporary storage for the boil-off process can be dispensed with entirely.

Diese Aufgabe wird nur unvollständig gelöst bei dem in der GB-A-20 77 783 beschriebenen Verfahren, bei dem eine Warenbahn aus Baumwolle in einer wässrigen siedenden NaOH-Lösung während nur 15 bis 25 Sekunden gekocht werden soll, wobei die Konzentration der NaOH-Lösung den sehr hohen Wert von 215-349 g/I aufweist und die Warenbahn anschließend auch gewaschen wird. Abgesehen davon, daß bei dem dort beschriebenen Verfahren die genannten kurzen Behandlungszeiten nur mit außerordentlich hohen Konzentrationen der NaOH-Lösung erreicht werden, was sehr kostenaufwendig ist, läßt sich dieses Verfahren, welches ein diskontinuierliches Verfahren zum gleichzeitigen Mercerisieren und Abkochen beschreibt, mit dem der Erfindung zu Grunde liegenden kontinuierlichen reinen Abkochverfahren garnicht vergleichen.This object is only incompletely achieved in the process described in GB-A-20 77 783, in which a web of cotton is to be boiled in an aqueous boiling NaOH solution for only 15 to 25 seconds, the concentration of the NaOH solution has a very high value of 215-349 g / I and the web is then also washed. Apart from the fact that in the process described there the short treatment times mentioned can only be achieved with extremely high concentrations of the NaOH solution, which is very expensive, this process, which describes a batch process for simultaneous mercerization and boiling, can be carried out with that of the invention do not compare the underlying continuous pure boiling process.

Zur Lösung der gestellten Aufgabe wird nun bei einem Verfahren der eingangs genannten Art erfindungsgemäß vorgeschlagen, die Warenbahnen zunächst einer Waschbehandlung in einer Abkochflotte die bei der Behandlung andauernd umgepumpt und dabei gefiltert wird, mit einer Laugenkonzentration von etwa 60 g/1 oder mehr, vorzugsweise etwa 80 g/I NaOH fest, die durch laufende Zudosierung einer definierten Menge frischer Behandlungsflotte konstant gehalten wird, während einer Dauer von etwa 30-40 Sek. bei einer Temperatur von etwa 95 °C zu unterwerfen, bevor nach einer Auswaschbehandlung bei einer Temperatur von ebenfalls etwa 95 °C und einer anschließenden Abkühlung die Warenbahnen einer Weiterbehandlung zugeführt werden. Die Weiterbehandlung kann dabei eine lmprägnierbehandlung für eine anschließende Kaltverweilbleiche sein, sie kann aber auch eine einfache Auswaschbehandlung für die in den Warenbahnen enthaltene Restmenge an NaOH vor dem anschließenden Aufdocken sein.In order to achieve the object, in a method of the type mentioned at the outset, it is proposed according to the invention that the product webs first undergo a washing treatment in a decoction liquor which is continuously pumped around and filtered during the treatment, with an alkali concentration of about 60 g / 1 or more, preferably about 80 g / l NaOH solid, which is kept constant by continuous addition of a defined amount of fresh treatment liquor, for a period of about 30-40 seconds at a temperature of about 95 ° C., before being washed out at a temperature of likewise about 95 ° C and a subsequent cooling, the webs are fed for further processing. The further treatment can be an impregnation treatment for subsequent cold bleaching, but it can also be a simple washout treatment for the residual amount of NaOH contained in the webs before the subsequent docking.

In die Abkochbehandlung und in die anschließende Auswaschbehandlung können jeweils leichte Zwischenabquetschungen der Warenbahnen eingeschaltet sein und nach der Abkochbehandlung und nach der Auswaschbehandlung starke Abquetschungen der Warenbahnen erfolgen.In the boil-off treatment and in the subsequent wash-out treatment, slight intermediate pinching off of the material webs can be switched on, and after the boil-off treatment and after the wash-out treatment, strong pinching off of the material webs can take place.

Bei einer Anlage zur Durchführung dieses Verfahrens können beispielsweise die Abkocheinheiten für die Warenbahnen aus zwei hintereinandergeschalteten Abkochabteilen mit einem leichten Zwischenquetschwerk zwischen den beiden Abkochabteilen und einem schweren Endquetschwerk hinter dem zweiten Abkochabteil bestehen, durch die die Abkochflotte, in deren Zuleitung zu den Abkochabteilen ein Dosierautomat für die Zugabe frischer Abkochflotte eingeschaltet ist, im Querstrom zur Laufrichtung der Warenbahnen hindurchgeführt und vor dem erneuten Einführen in die Behandlung durch ein Filter geleitet wird und die Auswascheinheit zwei hintereinandergeschaltete Waschabteile mit einem leichten Zwischenquetschwerk zwischen den beiden Waschabteilen und ein schweres Endquetschwerk hinter dem zweiten Waschabteil aufweisen.In a system for carrying out this method, for example, the decoction units for the material webs can consist of two consecutive decoction compartments with a light intermediate squeezing mechanism between the two decoction compartments and a heavy final crimping mechanism behind the second decoction compartment, through which the decoction liquor, in its supply line to the decoction compartments, has an automatic metering unit for the addition of fresh boiling liquor is switched on, passed through in cross-flow to the direction of travel of the fabric and passed through a filter before being reintroduced into the treatment, and the washing unit has two washing compartments connected in series with a slight squeezing mechanism between the two washing compartments and a heavy final squeezing mechanism behind the second washing compartment .

Auf der Zeichnung ist ein Ausführungsbeispiel einer Anlage-zur Durchführung des erfindungsgemäßen Verfahrens dargestellt.In the drawing, an embodiment of a system for performing the method according to the invention is shown.

Die Warenbahn 10 wird in dem dargestellten Beispiel von einem Wickel über eine Einführeinheit 11 in ein erstes Abkochabteil 12 eingeführt und nach einer Zwischenabquetschung durch ein leichtes Quetschwerk 14, in einem weiteren Abkochabteil 13 weiterbehandelt. Die Abkochflotte wird dabei im Gegenstrom zum Warenbahnlauf durch die Abkochabteile geführt. Es erfolgt dabei ein andauerndes Umpumpen der Flotte, wobei diese durch einen Filter 24 geführt wird, durch den grobe Verunreinigungen aus der Abkochflotte entfernt werden. Damit die Flottenkonzentration konstant bleibt, ist mit der Abkochflottenführungsleitung 25 ein Dosierautomat verbunden, durch den eine definierte Menge frischer Abkochflotte in den Flottenstrom eingegeben wird.In the example shown, the material web 10 is introduced from a winder via an insertion unit 11 into a first boiling compartment 12 and, after being squeezed in between by a light squeeze mechanism 14, is further processed in a further boiling compartment 13. The decoction liquor is guided through the decoction compartments countercurrent to the web run. The liquor is continuously pumped around, this being passed through a filter 24, through which coarse contaminants are removed from the decoction liquor. So that the liquor concentration remains constant, an automatic dosing device is connected to the decoction liquor guide line 25, through which a defined amount of fresh decoction liquor is entered into the liquor flow.

Hinter dem zweiten Abkochabteil 13 wird die Abkochflotte durch ein schweres Quetschwerk 15 weitgehendst aus der Warenbahn entfernt und die Warenbahn dann der ersten Auswascheinheit 16 zugeführt, in der Natronlauge und Verschmutzungen ausgewaschen werden. Nach einer leichten Zwischenabquetschung in einem Quetschwerk 18 wird die Warenbahn noch durch ein weiteres Auswaschabteil 17 geführt und schließlich durch ein weiteres schweres Quetschwerk 19 entwässert. Dabei wird die Endkonzentration nach dem letzten Abteil so eingestellt, daß die Restmenge NaOH in dem der Kühl- und Verdunstungseinheit 20 nachgeschalteten Imprägnierabteil für die Kaltverweilbleiche ausreicht.Behind the second boil-off compartment 13, the boil-off liquor is largely removed from the material web by a heavy squeeze mechanism 15 the material web is then fed to the first washing unit 16, in which sodium hydroxide solution and contaminants are washed out. After a slight intermediate squeezing in a squeeze unit 18, the web is passed through a further washout compartment 17 and finally dewatered by another heavy squeeze unit 19. The final concentration after the last compartment is adjusted so that the remaining amount of NaOH in the impregnation compartment downstream of the cooling and evaporation unit 20 is sufficient for the cold bleaching.

Für den Fall, daß keine Bleiche erfolgen soll, wird das Imprägnierabteil 21, dem das Quetschwerk 22 nachgeschaltet ist, ebenfalls als Waschabteil zum Auswaschen der Restmenge NaOH verwendet, bevor die Warenbahn 10 von einem Ablagewickel 23 aufgenommen wird.In the event that no bleaching is to take place, the impregnation compartment 21, which is followed by the squeeze mechanism 22, is also used as a washing compartment for washing out the remaining amount of NaOH before the web 10 is taken up by a storage roll 23.

Claims (5)

1. Method for scouring in particular heavy and/or crease-prone textile fabric webs or similar, made of cotton or cotton-polyester blends, by which the fabric webs, if required subsequently to a singeing and possibly desizing treatment for which the fabric webs are initially subjected to a washing treatment in scouring liquor which is continually being recirculated and at the same time filtered, with a lye solution concentration of around 60 g/litre NaOH solid or more, the concentration of which is maintained by a specified volume of fresh treatment liquor being continuously added, are subjected to a temperature of approx. 95 °C for about 30 to 40 seconds before the fabric webs, after a rinsing treatment at a temperature also around 95 °C and subsequent cooling down, are subjected to a further treatment.
2. Method relating to Claim 1, characterized by the fact that the further treatment of the fabric webs consists of a rinsing-off treatment of the residual amount in the fabric webs of NaOH and subsequent plaiting or rolling up.
3. Method relating to Claim 1, characterized by the fact that the further treatment of the fabric webs is an impregnation treatment for a subsequent cold pad-batch bleaching process.
4. Method relating to Claims 1 to 3, characterized by the fact that both the scouring treatment and the subsequent rinsing-off treatment incorporate slight intermediate squeezings of the fabric web and that both after the scouring treatment and the rinsing-off treatment heavy squeezings of the fabric webs are carried out.
5. Range for execution of the method relating to Claims 1 to 4, characterized by the fact that the scouring unit for fabric webs (10) consists of two scouring compartments (12, 13), switched consecutively, with a light intermediate nip unit (14) between the two scouring compartments and a heavy final nip unit (15) following the second scouring compartment (13), through which the scouring liquor, with an automatic dosing unit (24) for adding fresh scouring liquor being switched into the feed pipe to the scouring compartments, is guided in counterflow to the general fabric web running direction and passes through a filter before renewed entry into the treatment, and the rinsing-off unit consists of two washing compartments (16, 17) switched consecutively, with a light intermediate nip unit (18) between the two washing compartments and a heavy final nip unit (19) following the second washing compartment.
EP84113681A 1983-11-15 1984-11-13 Method and apparatus for mercerizing textile webs or the like Expired EP0144818B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84113681T ATE41450T1 (en) 1983-11-15 1984-11-13 METHOD AND PLANT FOR COOKING TEXTILE PRODUCTS OR THE LIKE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3341272 1983-11-15
DE19833341272 DE3341272A1 (en) 1983-11-15 1983-11-15 METHOD AND INSTALLATION FOR COOKING TEXTILE TRACKS OR THE LIKE

Publications (2)

Publication Number Publication Date
EP0144818A1 EP0144818A1 (en) 1985-06-19
EP0144818B1 true EP0144818B1 (en) 1989-03-15

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Family Applications (1)

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EP84113681A Expired EP0144818B1 (en) 1983-11-15 1984-11-13 Method and apparatus for mercerizing textile webs or the like

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EP (1) EP0144818B1 (en)
AT (1) ATE41450T1 (en)
DE (2) DE3341272A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69027605T2 (en) * 1990-12-05 1996-10-31 Gesma Spa Method and device for continuous mercerization
DE4213127C1 (en) * 1992-04-21 1993-07-01 Babcock Textilmaschinen Gmbh, 2105 Seevetal, De
DE4408416C2 (en) * 1994-03-12 1995-12-21 Kuesters Eduard Maschf Device for winding a textile web
DE59602895D1 (en) * 1995-07-25 1999-09-30 Kuesters Eduard Maschf DEVICE FOR REWINDING A TEXTILE MATERIAL

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT305182B (en) * 1969-03-28 1973-02-12 Textilwerke Josef Otten Mercerizing machine
GB2077783B (en) * 1980-06-03 1984-01-04 Ivanovsky Nii Khlopchatobum Mercerising cloth

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Ullmanns Encyklopädie der technischen Chemie 4. Auflage, Band 23; Seite 24; Melliand Textilberichte 9/70, Seiten 1063-1069. *

Also Published As

Publication number Publication date
DE3477211D1 (en) 1989-04-20
ATE41450T1 (en) 1989-04-15
EP0144818A1 (en) 1985-06-19
DE3341272A1 (en) 1985-05-23

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