EP1589141A1 - Method and device for the continuous heat treatment of a textile fabric, particularly for fixing of dyestuffs - Google Patents

Method and device for the continuous heat treatment of a textile fabric, particularly for fixing of dyestuffs Download PDF

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Publication number
EP1589141A1
EP1589141A1 EP05011446A EP05011446A EP1589141A1 EP 1589141 A1 EP1589141 A1 EP 1589141A1 EP 05011446 A EP05011446 A EP 05011446A EP 05011446 A EP05011446 A EP 05011446A EP 1589141 A1 EP1589141 A1 EP 1589141A1
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EP
European Patent Office
Prior art keywords
web
roller
treatment
housing
fixing
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Granted
Application number
EP05011446A
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German (de)
French (fr)
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EP1589141B1 (en
Inventor
Marc-Aurel Voth
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Moenus Textilmaschinen GmbH
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Moenus Textilmaschinen GmbH
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Publication of EP1589141A1 publication Critical patent/EP1589141A1/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
    • 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
    • D06B23/04—Carriers or supports for textile materials to be treated
    • 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
    • D06B19/00—Treatment of textile materials by liquids, gases or vapours, not provided for in groups D06B1/00 - D06B17/00
    • D06B19/0005—Fixing of chemicals, e.g. dyestuffs, on textile materials
    • D06B19/0029—Fixing of chemicals, e.g. dyestuffs, on textile materials by steam
    • D06B19/0035—Fixing of chemicals, e.g. dyestuffs, on textile materials by steam the textile material passing through a chamber
    • 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
    • D06B23/14—Containers, e.g. vats
    • D06B23/16—Containers, e.g. vats with means for introducing or removing textile materials without modifying container pressure

Definitions

  • the invention relates to a process for the continuous heat treatment of a textile Web, in particular for color fixing, according to the preamble of claim 1 and a corresponding device according to the preamble of claim 8.
  • the fixation can by lingering the acted upon with dye liquor web at Room temperature or the wet or dried web at higher temperatures respectively.
  • the fixing treatment is of the material of the web and the applied Dye dependent.
  • From DE-A 16 35 140 is a method for the continuous dye fixation of chemical fibers in webs by a high-temperature treatment with convective heat transfer, For example, on nozzle-ventilated Fixierspannrahmen known. To even out the Fixing effect is first a rapid heating and then a dwell carried out. During rapid heating, the web is in tension chains and during the dwell treatment over normal guide rollers out.
  • the object of the invention is a process for continuous heat treatment, in particular for dye fixing, in which the treatment gas contains superheated steam, according to The preamble of claim 1, which is economically applicable for smaller amounts, and a to develop corresponding device according to the preamble of claim 8.
  • the heat treatment should be more effective and thus faster.
  • a method according to the invention for the continuous heat treatment of a textile Web is the acted upon with dye liquor, moist web through at least one Transport chamber transported and in the treatment chambers with a treatment gas, which consists essentially of superheated steam, brought into contact. It is in the Treatment gas has a vapor content of at least 80 vol .-%, preferably from 95 to 100% by volume, i. almost pure superheated steam, adjusted.
  • the temperature of the superheated steam is 105 to 230 ° C.
  • the hot steam is thereby in the form of superheated steam at used about atmospheric pressure.
  • the web temperature increases with pure superheated steam up to about 100 ° C.
  • the higher web temperature accelerates the Reaction of the dye with the fibers when fixing reactive dye on cotton or Cellulose. This leads to lower fixing times, correspondingly shorter residence times in one Treatment device, allowing smaller devices.
  • the high vapor content of the treatment gas accelerates due to the Condensation ability of the superheated steam, the heating time, resulting in a further reduction the required residence time leads.
  • the treatment method according to the invention despite the high Steam content and the high product temperature, and thus the increased drying, too good fixation results, i. to a good color yield and a good color quality, the Results of the prior art correspond.
  • the input moisture content of the web applied with dye liquor is during dyeing of native fibers with reactive dye 40 to 80%.
  • urea For most reactive dyes, the use of urea can be dispensed with.
  • the temperature of the superheated steam can according to claim 2 preferably 160 to 230 ° C. be.
  • the residence time of the web in the device can according to claim 3 5 to 60 seconds, preferably 10 to 30 seconds. This time is enough complete fixation with good color yield and allows a device smaller Size.
  • the web according to claim 5 with the recirculation method guided superheated steam are directed over the web directed nozzles in contact. This is possible in the inventive method without gradients, since due to the high steam content and possibly the high steam temperature a rapid drying of the Web and thus the dye is done.
  • Hotflue Devices with a meandering guidance of the web around two rows of rolls and directed to the web nozzles are the Applicant known as Hotflue.
  • known devices have, like those of WO 97/148 39, a very high Goods content and are, e.g. because of leaks, for operation with superheated steam not suitable.
  • nozzle-ventilated Fixierspannrahmen are for Rapid heating when dye-fixing chemical fibers, i. during thermosoling, from DE-A 16 35 140 known.
  • Devices of this type which are suitable for use as treatment gas superheated, are in DE 35 11 950, namely a floating dryer and a tensioning frame dryer described.
  • the web in the inventive method according to claim 7 by means of a roller gear spaced from a front wall of the housing under a longitudinal stress, in particular from 10 to 100 N / m, through the Transported treatment chambers.
  • the distance to the front wall is at least 20%, preferably at least 30%, the length of the horizontal transport path of the web through the treatment chambers.
  • the web is only through the roller gear led, if they and thus the dye is already dried. During drying and also during the entire fixing process, the web through the Longitudinal tension smoothed, resulting in a uniform fixing and thus a uniform Guaranteed color yield.
  • a guide of the web through a roller gear is about it
  • a simple transporting method e.g. compared with a tension chain guide, simpler inputs and outputs in the treatment chamber allows.
  • a device for the continuous heat treatment of a textile web according to Claim 8, in particular for color fixing, according to one of claims 1 to 7, with a vapor-tight housing, with at least one treatment chamber with a circulating air device, i.e. a device for guiding superheated hot steam, with a Recirculation fan and arranged above and below the web nozzle boxes in each treatment chamber, with a transport device to substantially planar guidance the web through the housing has according to claim 8 as an essential part of Transport device at least one spaced from a front wall of the housing arranged roll on. The distance to the front wall is at least 20%, preferably at least 30%, the length of the horizontal transport path of the web through the treatment chambers.
  • a roller gear may have two mutually offset rollers, wherein a relative to another, is adjustable to generate a longitudinal voltage.
  • a roller can also be two, the web in their transport plane leading rods or rollers and one between the two rods or rollers above or below the Transport level arranged, adjustable perpendicular to the transport plane tension roller exhibit.
  • the web is in the form of a loop around the tension roller guided around and by deflection of the tension roller perpendicular to the transport plane and the Longitudinal tension held.
  • a device according to claim 8 is particularly suitable for implementation a method according to claim 7 suitable.
  • the roller gear according to claim 9 each in the area in which the abut each other, arranged, d. H. the distance to Front wall is about 50% of the length of the horizontal transport path of the web through the treatment chambers.
  • the treatment chambers are also fields and the Areas between the treatment chambers called field shocks.
  • the roller gear has two guide rollers and a vertically adjustable Pull roller on, with the guide rollers close together and the draw roller in the middle below the guide rollers are arranged.
  • This arrangement allows the guide rollers and draw rollers a narrow butting area of the treatment chamber, i. the area or the areas in where no nozzle boxes are arranged, can be kept small.
  • a draw roller which is simultaneously formed as an alignment roller according to claim 11, saves additional means for aligning the web.
  • the device according to the invention in front of and behind the housing one lock each.
  • the locks extend from the ground to over Transport level of the web and point near the ground and at the level of transport level Deflection rollers on.
  • the locks are in a lower, downwardly open antechamber and a subdivided further arranged above the main chamber.
  • To the antechambers can suction channels or suction boxes connected.
  • In comparison to those known from DE-A 195 46 344 Inlet and outlet slots with suction boxes is through the separate locks with Pre-chamber and suction devices the ingress of air and thus condensation of Steam to water safer prevented.
  • a known from DE 198 58 839 lock in the Before the inlet slot of the housing steam is inflated onto the web, is for Fixing dye less suitable because of the risk of color gradients.
  • Figure 1 shows a plant for dyeing with a device according to the invention for Color fixing.
  • Figure 2 is an entrance lock, a first treatment chamber and a Roller gear of the device shown.
  • a plant for dyeing a textile web 1, e.g. made of cotton or cellulose with Reactive dye, has in the transport direction one behind the other arranged a goods storage 2, a feeding device 3, a coloring device 4, an aisle 5, a device for Color fixing 6, another supply device 7 and another goods storage 8.
  • the front goods storage 2 as a container
  • the dyeing device 4 as Foulard
  • the rear goods storage 8 as a winding roller
  • the feeders 3, 7 as Gallows trained.
  • the device for color fixing 6 has an entrance lock 9, a vapor-tight, heat-insulated housing 10 and an outlet lock 11.
  • the housing 10 comprises at least one, preferably two to five, here two, modular lined up treatment chambers 12, 13 through the treatment chambers 12, 13 is the interior of the housing 10 divided into two, successively arranged fields.
  • the Housing 10 is not divided and includes all treatment chambers 12, 13th
  • each of the treatment chambers 12, 13 is a recirculation device, i. a device for Guiding hot steam in a cycle, also called recirculation method, with a Recirculation fan 14, a heater not shown in Figure 2 and with nozzle boxes 15th arranged with aimed at the web 1 nozzle openings.
  • a recirculation device i. a device for Guiding hot steam in a cycle, also called recirculation method, with a Recirculation fan 14, a heater not shown in Figure 2 and with nozzle boxes 15th arranged with aimed at the web 1 nozzle openings.
  • 13 may be several, e.g. two above and below the web 1 is transverse be arranged over the web 1 extending nozzle boxes 15.
  • the nozzle openings are preferably formed as slots.
  • a transport device has, in addition to guide rollers 16, 17 in the entrance lock 9 and guide rollers 18, 19, 20 in and behind the exit lock 11 in the area in which abut the two treatment chambers 12, 13, a roller gear with two Guide rollers 21, 22 and a draw roller 23.
  • the roller gear is thus on the half of Transport path of the web 1 of inlet slot 27 in the front wall 26 to Outlet slot 29 arranged in the rear wall 28.
  • the two guide rollers 21, 22 nd the same size and arranged one behind the other at a height.
  • the arrangement of the guide rollers 21, 22, the last guide roller 17 of the entrance lock 9 and the first guide roller 18th the exit lock 11 is such that the transport plane of the web 1 in the Treatment chambers 12, 13 is flat and horizontal.
  • the tension roller 23 is arranged vertically adjustable in the middle, below the guide rollers 21, 22. It is also used as an alignment roller, i. in a plane passing through its axis parallel to Transport plane adjustable, trained. The height adjustment of the draw roller 23 is through the Arrows 24 and the alignability indicated by the arrows 25.
  • the draw roller 23 is also connected to a drive, not shown.
  • the housing 10 has on a front wall 26 of the first treatment chamber 12 a Inlet slot 27 and on a rear wall 28 of the last treatment chamber 13 a Outlet slot 29, through which the web 1 in the housing 10 and out of it led out.
  • the entrance lock 9 has a running parallel to the front wall 26, in the vicinity a lower edge 30 to above the inlet slot 27 extending front plate 31, a Ceiling plate 32 and two side plates, not shown.
  • the sheets 31, 32 of Entrance lock 9 are vapor-tight with each other and connected to the front wall 26.
  • the Entrance lock 9 is by intermediate plates 33, 34, extending from the front plate 31 and from the Front wall 26 extend into the interior of the entrance lock 9 and between them a gap 35 leave for the web 1, in an upper main chamber 36 and an under Vorsch 37th divided.
  • the pre-chamber 37 is open at the bottom. To the prechamber 37 is a Suction, connected in this example with a fan, not shown Suction channel 38 connected.
  • Suction boxes 39 to which the suction channel 38 is connected, in the antechamber 37.
  • the first Guide roller 16 of the transport device is located below the antechamber 37 and the second, i. Last guide roller 17 in front of the inlet slot 27th
  • the exit lock 11 is constructed analogously to the entrance lock 9.
  • the first and second Guide roller 18,19 are analogous to those of the entrance lock 9 and the third Guide roller 20 behind the second arranged behind the exit lock 11.
  • the web 1 is to the guide roller 16 of the transport device from below into the prechamber 37 of the entrance lock 9 through the prechamber 37 and through the gap 35 into the main chamber 36 and the guide roller 17 through the inlet slot 27 into the first treatment chamber 12 of the device. 6 transported.
  • the transport of the web 1 through the treatment chambers 12, 13 takes place through the roller gear arranged between the first and second treatment chambers 12, 13 in a horizontal plane and under a longitudinal tension of 10 to 100 N / m.
  • the web 1 is meander-shaped, around and around the guide roller 21, the driven tension roller 23 and the guide roller 22 around.
  • the desired longitudinal tension is adjusted by height adjustment of the tension roller 23.
  • Optionally occurring shifts of the web 1 are compensated by adjusting the tension roller 23, by an angular displacement of the axis of the tension roller 23 parallel to the transport plane.
  • the web 1 leaves the device 6, through the exit slot 29 and the exit lock 11. It is fed via a designed as gallows supply device 7 designed as a winding roller goods storage 8.
  • the web speed is for example 40 m / min.
  • the web 1 is charged with dye liquor.
  • the Luftgang 5 is a homogenization of the dye liquor on the web 1 instead.
  • the moist web 1 is, while it is transported to the roller course just by the treatment chamber 12, 13 of the device 6, applied via the above and below the web 1 arranged nozzle boxes 15 with directed to the web 1 nozzle openings with superheated steam.
  • the nozzle pressure is 200 to 1000 PA and the heat transfer capacity about 240 W / m 2 .
  • the temperature of the superheated steam is 160 to 230 ° C and the residence time of the web 1 in the treatment chambers 12, 13 5 to 60 seconds, preferably 10 to 30 seconds.
  • the Residual moisture of the web 1 when leaving the housing 10 is about or less than the equilibrium moisture content under normal conditions, i. less than or equal to 10%.
  • the steam content preferably between 95 and 100 vol .-%, is aspirated by varying the amount Treatment gas via the suction channels 38 of the antechambers 37 of the input and Exit locks 9, 11 maintained. A regulation of a certain residual moisture of the Web is not necessary.
  • a fabric web 1 of cotton (BG) with a fabric weight of 80 g / m 2 applied with dye liquor of a reactive dye without urea is transported through the device 6 at a web speed of 40 m / min.
  • the temperature of the pure hot steam is 180 ° C.
  • the nozzle pressure at the nozzle openings of the nozzle boxes 15 is 700 PA.
  • Even after a residence time of 5 seconds the majority of the dye has reacted with the fibers of the web 1 and is fixed. After another 5 seconds, the web 1 is completely dried and the remaining part of the dye is fixed.
  • the input moisture of about 80% is reduced in the device 6 to a value less than 10%.
  • the total residence time of the web 1 in the device 6 is 10 seconds.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Coloring (AREA)

Abstract

The assembly to carry textile piecegoods (1) continuously through a heat treatment zone, especially for fixing dyestuffs, has a vapor-tight housing (10) with entry and exit locks (9) containing at least one treatment chamber (12,) with at least one recirculating air fan (14). Jet boxes (15) are above and below the fabric. The fabric transport system moves on a flat path through the assembly, with a structured roller path (21-23) at a gap from the leading wall (26) of the housing.

Description

Die Erfindung betrifft ein Verfahren zur kontinuierlichen Wärmebehandlung einer textilen Warenbahn, insbesondere zum Farbfixieren, gemäß dem Oberbegriff des Anspruchs 1 und eine entsprechende Vorrichtung gemäß dem Oberbegriff des Anspruchs 8.The invention relates to a process for the continuous heat treatment of a textile Web, in particular for color fixing, according to the preamble of claim 1 and a corresponding device according to the preamble of claim 8.

Beim Färben ist es notwendig, den auf die textile Warenbahn aufgebrachten Farbstoff zu fixieren. Die Fixierung kann durch Verweilen der mit Farbflotte beaufschlagten Warenbahn bei Raumtemperatur oder der feuchten oder getrockneten Warenbahn bei höheren Temperaturen erfolgen. Die Fixierbehandlung ist vom Material der Warenbahn und dem aufgebrachten Farbstoff abhängig.When dyeing it is necessary to apply the applied to the textile web dye fix. The fixation can by lingering the acted upon with dye liquor web at Room temperature or the wet or dried web at higher temperatures respectively. The fixing treatment is of the material of the web and the applied Dye dependent.

Beim Färben von Chemiefasern mit Dispersionsfarbstoffen ist es z.B. bekannt, die mit Farbflotte beaufschlagte Warenbahn zunächst zu trocknen und anschließend den Farbstoff bei höherer Temperatur auf der Warenbahn zu fixieren.When dyeing manmade fibers with disperse dyes, it is e.g. known with color fleet to dry initially applied web and then the dye at higher Temperature on the web to fix.

Aus der DE-A 16 35 140 ist ein Verfahren zur kontinuierlichen Farbfixierung von Chemiefasern in Warenbahnen durch eine Hochtemperaturbehandlung mit konvektivem Wärmeübergang, beispielsweise auf düsenbelüfteten Fixierspannrahmen, bekannt. Zur Vergleichmäßigung des Fixiereffektes wird zunächst eine Schnellaufheizung und anschließend eine Verweilbehandlung durchgeführt. Während der Schnellaufheizung wird die Warenbahn in Spannketten und während der Verweilbehandlung über normale Führungswalzen geführt.From DE-A 16 35 140 is a method for the continuous dye fixation of chemical fibers in webs by a high-temperature treatment with convective heat transfer, For example, on nozzle-ventilated Fixierspannrahmen known. To even out the Fixing effect is first a rapid heating and then a dwell carried out. During rapid heating, the web is in tension chains and during the dwell treatment over normal guide rollers out.

Beim Färben von Baumwolle oder Zellulose mit Reaktivfarbstoffen ist es z.B. bekannt, die mit Farbflotte beaufschlagte Warenbahn zunächst zu trocknen und anschließend den Farbstoff bei höherer Temperatur mit den Fasern der Warenbahn reagieren zu lassen. Dazu werden Hilfsmittel wie Harnstoff, die der Farbflotte beigemischt werden, benötigt. Die Hilfsmittel halten den Farbstoff beim Trocknen in Lösung und verdunsten beim Fixieren. Als Behandlungsgas wird erwärmte Luft eingesetzt. Der Einsatz aggressiver Hilfsmittel, wie Harnstoff, kann bei einer Behandlung der mit Farbflotte beaufschlagten Warenbahn mit einem Dampf-Luftgemisch reduziert oder vermieden werden.When dyeing cotton or cellulose with reactive dyes, it is e.g. known with the First drying the dye liquor and then adding the dyestuff higher temperature to react with the fibers of the web. To do this Auxiliaries such as urea, which are added to the dye liquor, are needed. Keep the tools the dye when drying in solution and evaporate during fixing. As a treatment gas heated air is used. The use of aggressive auxiliaries, such as urea, can at a Treatment of the applied with dye liquor web with a vapor-air mixture be reduced or avoided.

Aus der EP-A 0 864 683 ist bekannt, einen Warenstrang aus celluloser Rundstrick- oder Rundwirkware mit wässriger Farbflotte eines faserreaktiven Farbstoffes bei einer Temperatur von 20 bis 25° C zu imprägnieren, abzuquetschen und ohne Zwischentrocknung in einem ungesättigten Wasserdampf-Luftgemisch, mit 10 bis 80 Vol.-% Wasserdampf, einer Temperatur von 100 bis 160° C und bei einer sich einstellenden Naßtemperatur der feuchten Ware zwischen 50 und 95° C zu fixieren. Die Ware wird mit einer Geschwindigkeit geführt, die über die gemessene Restfeuchte der Ware nach Austritt aus der Fixiervorrichtung geregelt wird. Die Restfeuchte beträgt 10 bis 25 Gew.-% bezogen auf das Warengewicht.From EP-A 0 864 683 is known, a strand of cellulose circular knit or Rundwirkware with aqueous dye liquor of a fiber-reactive dye at a temperature from 20 to 25 ° C to impregnate, squeeze and without intermediate drying in one unsaturated water vapor-air mixture, with 10 to 80 vol .-% water vapor, a temperature from 100 to 160 ° C and at an adjusting wet temperature of the wet goods between 50 and 95 ° C to fix. The goods are being transported at a speed that exceeds the measured residual moisture of the product is controlled after exiting the fixing device. The Residual moisture is 10 to 25 wt .-% based on the weight of the product.

Aus der WO 97/14 839 ist ein gattungsgemäßes Verfahren und eine Vorrichtung zum Farbfixieren beim Reaktivfärben von Zelluloseware, mit dem eine optimale Farbausbeute ohne aggressive Hilfsmittelmengen erzielbar ist, bekannt. In einem Foulard wird Farbflotte auf die Ware gebracht, die anschließend in eine Kammer eines Lufttrockners geführt wird. In dieser Kammer wir ein Dampfgehalt von größenordnungsmäßig 25 Vol. % der Luft aufrecht erhalten und dafür gesorgt, daß die Ware am Ausgang der Kammer noch eine reaktionsbereite Restfeuchte aufweist. Dazu werden zwei Regelkreise, einer für den Dampfgehalt und einer für die Restfeuchte der Warenbahn eingesetzt, d.h. es sind bei diesem Verfahren aufwendige Meß-und Regeleinrichtungen erforderlich. Dieses Fixierverfahren benötigt aufgrund der Verweildauer von größenordnungsmäßig 2 Minuten bei einem kontinuierlichen Verfahren mit einer Warenbahngeschwindigkeit von, z.B. 40m/min, einen Wareninhalt im Verweilaggregat, hier eine Hotflue, von mindestens 80 m. Es ist daher für kleiner zu färbende Mengen (kleinere Metragen) nicht wirtschaftlich einzusetzen.From WO 97/14839 a generic method and an apparatus for Fixing of dye in the reactive dyeing of cellulose products, with the optimal color yield without aggressive amounts of auxiliaries is achievable known. In a foulard, dye liquor is on the Goods are brought, which is then fed into a chamber of an air dryer. In this Chamber we maintain a vapor content of the order of 25% by volume of the air and ensured that the goods at the exit of the chamber still a reaction ready Residual moisture has. These are two control loops, one for the steam content and one for the residual moisture of the web used, i. There are in this process consuming measuring and Control devices required. This fixation process requires due to the residence time of the order of 2 minutes in a continuous process with a Web speed of, e.g. 40m / min, a goods content in the dwelling unit, here one Hotflue, of at least 80 m. It is therefore for smaller quantities to be dyed (smaller amounts) not use economically.

Aufgabe der Erfindung ist es, ein Verfahren zur kontinuierlichen Wärmebehandlung, insbesondere zum Farbfixieren, bei dem das Behandlungsgas Heißdampf enthält, gemäß dem Oberbegriff des Anspruchs 1, das für kleinere Metragen wirtschaftlich einsetzbar ist, und eine entsprechende Vorrichtung gemäß dem Oberbegriff des Anspruchs 8 zu entwickeln. Insbesondere soll die Wärmebehandlung effektiver und damit schneller durchführbar sein. The object of the invention is a process for continuous heat treatment, in particular for dye fixing, in which the treatment gas contains superheated steam, according to The preamble of claim 1, which is economically applicable for smaller amounts, and a to develop corresponding device according to the preamble of claim 8. In particular, the heat treatment should be more effective and thus faster.

Diese Aufgabe ist durch die kennzeichnenden Merkmale der Ansprüche 1 und 8 gelöst.This object is solved by the characterizing features of claims 1 and 8.

Bei einem erfindungsgemäßen Verfahren zur kontinuierlichen Wärmebehandlung einer textilen Warenbahn wird die mit Farbflotte beaufschlagte, feuchte Warenbahn durch mindestens eine Behandlungskammer transportiert und in den Behandlungskammern mit einem Behandlungsgas, das im wesentlichen aus Heißdampf besteht, in Kontakt gebracht. Dabei wird im Behandlungsgas ein Dampfgehalt von mindestens 80 Vol.-%, vorzugsweise von 95 bis 100 Vol.-%, d.h. nahezu reiner Heißdampf, eingestellt. Die Temperatur des Heißdampfes beträgt 105 bis 230° C. Der Heißdampf wird dabei in Form von überhitztem Wasserdampf bei etwa Atmosphärendruck eingesetzt.In a method according to the invention for the continuous heat treatment of a textile Web is the acted upon with dye liquor, moist web through at least one Transport chamber transported and in the treatment chambers with a treatment gas, which consists essentially of superheated steam, brought into contact. It is in the Treatment gas has a vapor content of at least 80 vol .-%, preferably from 95 to 100% by volume, i. almost pure superheated steam, adjusted. The temperature of the superheated steam is 105 to 230 ° C. The hot steam is thereby in the form of superheated steam at used about atmospheric pressure.

Bei einem höheren Dampfgehalt sind höhere Temperaturen der Warenbahn bei der Wärmebehandlung erreichbar; insbesondere steigt bei reinem Heißdampf die Warenbahntemperatur bis auf etwa 100° C. Die höhere Warenbahntemperatur beschleunigt die Reaktion des Farbstoffes mit den Fasern beim Fixieren von Reaktivfarbstoff auf Baumwolle oder Zellulose. Dies führt zu geringeren Fixierzeiten, entsprechend geringeren Verweilzeiten in einer Behandlungsvorrichtung und ermöglicht damit kleinere Vorrichtungen.At a higher steam content are higher temperatures of the web at the Heat treatment achievable; in particular, the web temperature increases with pure superheated steam up to about 100 ° C. The higher web temperature accelerates the Reaction of the dye with the fibers when fixing reactive dye on cotton or Cellulose. This leads to lower fixing times, correspondingly shorter residence times in one Treatment device, allowing smaller devices.

Der hohe Dampfgehalt des Behandlungsgases beschleunigt aufgrund der Kondensationsfähigkeit des Heißdampfes die Aufheizzeit, was zu einer weiteren Reduzierung der benötigten Verweilzeit führt.The high vapor content of the treatment gas accelerates due to the Condensation ability of the superheated steam, the heating time, resulting in a further reduction the required residence time leads.

Überraschenderweise führt das erfindungsgemäße Behandlungsverfahren trotz des hohen Dampfgehaltes und der hohen Warentemperatur, und damit der verstärkten Trocknung, zu guten Fixierergebnissen, d.h. zu einer guten Farbausbeute und einer guten Farbqualität, die den Ergebnissen des Standes der Technik entsprechen.Surprisingly, the treatment method according to the invention, despite the high Steam content and the high product temperature, and thus the increased drying, too good fixation results, i. to a good color yield and a good color quality, the Results of the prior art correspond.

Die Trocknung der feuchten Warenbahn während der Behandlung mit Heißdampf hat sich als wesentlich für eine vollständige Fixierung bei geringen Fixierzeiten herausgestellt. Dies wird durch eine Beschleunigung des Fixiervorgangs, zum Beispiel der Reaktion des Reaktivfarbstoffes mit nativen Fasern, wie Baumwolle und Zellulose, durch die Trocknung erklärt.The drying of the moist web during the treatment with superheated steam has proven to be significantly emphasized for complete fixation with low fixation times. this will by an acceleration of the fixing process, for example the reaction of the Reactive dye with native fibers, such as cotton and cellulose, by drying explained.

Die Eingangsfeuchte der mit Farbflotte beaufschlagten Warenbahn beträgt beim Färben von nativen Fasern mit Reaktivfarbstoff 40 bis 80%.The input moisture content of the web applied with dye liquor is during dyeing of native fibers with reactive dye 40 to 80%.

Für die meisten Reativfarbstoffe kann auf den Einsatz von Harnstoff verzichtet werden.For most reactive dyes, the use of urea can be dispensed with.

Die Temperatur des Heißdampfes kann gemäß Anspruch 2 vorzugsweise 160 bis 230° C betragen. Je höher die Temperatur des Behandlungsgases und damit je höher die Temperaturdifferenz zwischen Behandlungsgas und Warenbahn, desto größer ist der Wärmeübergang und desto schneller die Aufheizzeit der Warenbahn und die Trocknung der Warenbahn.The temperature of the superheated steam can according to claim 2 preferably 160 to 230 ° C. be. The higher the temperature of the treatment gas and thus the higher the Temperature difference between treatment gas and web, the greater is the Heat transfer and the faster the heating time of the web and the drying of the Web.

Die Verweilzeit der Warenbahn in der Vorrichtung kann gemäß Anspruch 3 5 bis 60 Sekunden, vorzugsweise 10 bis 30 Sekunden, betragen. Diese Zeit reicht zur vollständigen Fixierung mit guter Farbausbeute aus und ermöglicht eine Vorrichtung kleiner Baugröße.The residence time of the web in the device can according to claim 3 5 to 60 seconds, preferably 10 to 30 seconds. This time is enough complete fixation with good color yield and allows a device smaller Size.

Überraschenderweise wurde festgestellt, daß bei dem erfindungsgemäßen Verfahren optimale Fixierergebnisse auch mit einer Restfeuchte der Warenbahn kleiner oder gleich der Gleichgewichtsfeuchte unter Normalbedingungen gemäß Anspruch 4, d.h. bei etwa 10 % Feuchte bezogen auf das Gewicht der Warenbahn bei Zellulose und etwa 8 % Feuchte bei Baumwolle, erzielt werden. Dies wird durch die schon erwähnte beschleunigende Wirkung der Trocknung für das Farbfixieren erklärt. Eine Regelung der Restfeuchte der Warenbahn in der Vorrichtung ist nicht notwendig.Surprisingly, it has been found that optimal in the inventive method Fixing results even with a residual moisture of the web less than or equal to Equilibrium moisture under normal conditions according to claim 4, i. at about 10% Moisture based on the weight of the web in cellulose and about 8% moisture in cotton. This is by the already mentioned accelerating effect of drying for fixing the dye explained. A regulation of Residual moisture of the web in the device is not necessary.

Prinzipiell sind alle Verfahren, bei denen die Warenbahn mit Heißdampf in Kontakt gebracht wird, zum Einsatz für ein erfindungsgemäßes Verfahren geeignet. In principle, all processes in which the web is brought into contact with superheated steam is suitable for use in a method according to the invention.

Zu diesen Verfahren könnte eine Führung der Warenbahn durch eine mit Heißdampf gefüllte Kammer in Form von Hängeschleifen und eine mäanderförmige Führung der Warenbahn um zwei Reihen von Leit- und Förderwalzen gehören, soweit sie zum Transport einer feuchten, gefärbten und unfixierten Warenbahn geeignet ist.These methods could be a guide of the web through a filled with superheated steam Chamber in the form of hanging loops and a meandering guidance of the web around two rows of guide and conveyor rollers, as far as they are used to transport a moist, dyed and unfixed web is suitable.

Zur Verbesserung des Wärmeüberganges vom Heißdampf auf die Warenbahn und damit der Reduzierung der Verweilzeit kann die Warenbahn gemäß Anspruch 5 mit im Umluftverfahren geführtem Heißdampf über auf die Warenbahn gerichtete Düsen in Kontakt gebracht werden. Dies ist bei dem erfindungsgemäßen Verfahren ohne Farbverläufe möglich, da aufgrund des hohen Dampfgehaltes und ggf. der hohen Dampftemperatur ein schnelles Antrocknen der Warenbahn und damit des Farbstoffes erfolgt.To improve the heat transfer from the hot steam to the web and thus the Reduction of the residence time, the web according to claim 5 with the recirculation method guided superheated steam are directed over the web directed nozzles in contact. This is possible in the inventive method without gradients, since due to the high steam content and possibly the high steam temperature a rapid drying of the Web and thus the dye is done.

Vorrichtungen mit einer mäanderförmigen Führung der Warenbahn um zwei Reihen von Walzen und auf die Warenbahn gerichteten Düsen sind der Anmelderin als Hotflue bekannt. Die bekannten Vorrichtungen haben jedoch, wie die der WO 97/148 39, einen sehr hohen Wareninhalt und sind, z.B. wegen Undichtigkeiten, für einen Betrieb mit Heißdampf nicht geeignet.Devices with a meandering guidance of the web around two rows of rolls and directed to the web nozzles are the Applicant known as Hotflue. The However, known devices have, like those of WO 97/148 39, a very high Goods content and are, e.g. because of leaks, for operation with superheated steam not suitable.

Eine weitere Verbesserung des Wärmeüberganges kann erreicht werden, wenn die Warenbahn gemäß Anspruch 6 im wesentlichen eben durch die Behandlungskammer transportiert wird und über oberhalb und ggf. unterhalb der Warenbahn angeordneten Düsenkästen mit Heißdampf in Kontakt gebracht wird.Further improvement of the heat transfer can be achieved when the web is conveyed according to claim 6 substantially flat through the treatment chamber and above and possibly below the web arranged nozzle boxes with superheated steam in Contact is brought.

Vorrichtungen, in denen die Warenbahn eben hindurchtransportiert und über Düsenkästen mit Behandlungsgas in Kontakt gebracht wird, nämlich düsenbelüftete Fixierspannrahmen, sind zur Schnellaufheizung beim Farbfixieren von Chemiefasern, d.h. beim Thermosolieren, aus der DE-A 16 35 140 bekannt.Devices in which the web transported straight through and with nozzle boxes with Treatment gas is brought into contact, namely nozzle-ventilated Fixierspannrahmen are for Rapid heating when dye-fixing chemical fibers, i. during thermosoling, from DE-A 16 35 140 known.

Vorrichtungen dieser Art, die geeignet sind als Behandlungsgas Heißdampf einzusetzen, sind in der DE 35 11 950, nämlich ein Schwebetrockner und ein Spannrahmentrockner, beschrieben. Devices of this type, which are suitable for use as treatment gas superheated, are in DE 35 11 950, namely a floating dryer and a tensioning frame dryer described.

Bei einer schwebenden Führung der Warenbahn in einem Schwebetrockner ist die Gefahr der Entstehung welliger Abschnitte der Warenbahn, die beim Fixieren zu Farbverläufen führen können, groß. Spannketten haben beim Farbfixieren den Nachteil, daß sie Randmarkierungen verursachen.In a floating guidance of the web in a floating dryer is the risk of Formation of wavy sections of the web, which lead to color gradients during fixing can, big. Tension chains have the drawback in dye fixing that they edge markings cause.

Eine weitere, gattungsgemäße Vorrichtung, nämlich ein zur Heißdampfbehandlung einsetzbarer Spannrahmentrockner, ist aus der DE 195 A 46 344 bekannt. Einlaufschlitz und Auslaufschlitz dieses Trockners sind im Boden seines Gehäuses angebracht. Die Warenbahn wird dabei bis auf den Einlaufbereich und den Auslaufbereich eben, und zwar horizontal, durch den Trockner geführt.Another, generic device, namely a usable for superheated steam treatment Tenter frame dryer, is known from DE 195 A 46 344. Inlet slot and outlet slot This dryer are mounted in the bottom of its housing. The web will be up on the inlet area and the outlet area, and horizontally, through the dryer guided.

Vorzugsweise wird die Warenbahn beim erfindungsgemäßen Verfahren gemäß Anspruch 7 mittels eines mit Abstand zu einer Vorderwand des Gehäuses angeordneten Walzengangs unter einer Längsspannung, insbesondere von 10 bis 100 N /m, durch die Behandlungskammern transportiert. Der Abstand zur Vorderwand beträgt mindestens 20%, vorzugsweise mindestens 30%, der Länge des horizontalen Transportweges der Warenbahn durch die Behandlungskammern. Dabei wird die Warenbahn erst durch den Walzengang geführt, wenn sie und damit der Farbstoff bereits angetrocknet ist. Während des Antrocknens und auch während des gesamten Fixiervorganges wird die Warenbahn durch die Längsspannung glattgezogen, was ein gleichmäßiges Fixieren und damit eine gleichmäßige Farbausbeute gewährleistet. Eine Führung der Warenbahn durch einen Walzengang ist darüber hinaus ein einfaches Transportierverfahren, das z.B. verglichen mit einer Spannkettenführung, einfachere Ein- und Ausgänge in die Behandlungskammer ermöglicht.Preferably, the web in the inventive method according to claim 7 by means of a roller gear spaced from a front wall of the housing under a longitudinal stress, in particular from 10 to 100 N / m, through the Transported treatment chambers. The distance to the front wall is at least 20%, preferably at least 30%, the length of the horizontal transport path of the web through the treatment chambers. The web is only through the roller gear led, if they and thus the dye is already dried. During drying and also during the entire fixing process, the web through the Longitudinal tension smoothed, resulting in a uniform fixing and thus a uniform Guaranteed color yield. A guide of the web through a roller gear is about it In addition, a simple transporting method, e.g. compared with a tension chain guide, simpler inputs and outputs in the treatment chamber allows.

Eine Vorrichtung zur kontinuierlichen Wärmebehandlung einer textilen Warenbahn gemäß Anspruch 8, insbesondere zum Farbfixieren, nach einem der Ansprüche 1 bis 7, mit einem dampfdichten Gehäuse, mit mindestens einer Behandlungskammer mit einer Umluftvorrichtung, d.h. einer Vorrichtung zum Führen von Heißdampf im Umluftverfahren, mit einem Umluftventilator und oberhalb und unterhalb der Warenbahn angeordneten Düsenkästen in jeder Behandlungskammer, mit einer Transportvorrichtung zu im wesentlichen ebenen Führung der Warenbahn durch das Gehäuse weist gemäß Anspruch 8 als wesentlichen Teil der Transportvorrichtung mindestens einen mit Abstand zu einer Vorderwand des Gehäuses angeordneten Walzengang auf. Der Abstand zur Vorderwand beträgt mindestens 20%, vorzugsweise mindestens 30 %, der Länge des horizontalen Transportweges der Warenbahn durch die Behandlungskammern.A device for the continuous heat treatment of a textile web according to Claim 8, in particular for color fixing, according to one of claims 1 to 7, with a vapor-tight housing, with at least one treatment chamber with a circulating air device, i.e. a device for guiding superheated hot steam, with a Recirculation fan and arranged above and below the web nozzle boxes in each treatment chamber, with a transport device to substantially planar guidance the web through the housing has according to claim 8 as an essential part of Transport device at least one spaced from a front wall of the housing arranged roll on. The distance to the front wall is at least 20%, preferably at least 30%, the length of the horizontal transport path of the web through the treatment chambers.

Ein Walzengang kann zwei zueinander versetzte Walzen aufweisen, wobei eine relativ zur anderen, zur Erzeugung einer Längsspannung verstellbar ist.A roller gear may have two mutually offset rollers, wherein a relative to another, is adjustable to generate a longitudinal voltage.

Ein Walzengang kann auch zwei, die Warenbahn in ihrer Transportierebene führende Stangen oder Walzen und eine zwischen den beiden Stangen bzw. Walzen oberhalb oder unterhalb der Transportierebene angeordnete, senkrecht zur Transportierebene verstellbare Zugwalze aufweisen. In diesem Fall wird die Warenbahn in Form einer Schleife um die Zugwalze herumgeführt und durch Auslenkung der Zugwalze senkrecht zur Transportierebene und der Längsspannung gehalten. Eine Vorrichtung gemäß Anspurch 8 ist besonders zur Durchführung eines Verfahrens nach Anspruch 7 geeignet.A roller can also be two, the web in their transport plane leading rods or rollers and one between the two rods or rollers above or below the Transport level arranged, adjustable perpendicular to the transport plane tension roller exhibit. In this case, the web is in the form of a loop around the tension roller guided around and by deflection of the tension roller perpendicular to the transport plane and the Longitudinal tension held. A device according to claim 8 is particularly suitable for implementation a method according to claim 7 suitable.

Bei einer erfindungsgemäßen Vorrichtung mit mindestens zwei hintereinander angeordneten Behandlungskammern ist der Walzengang gemäß Anspruch 9 jeweils im Bereich, in dem die beiden Behandlungskammern aneinanderstoßen, angeordnet, d. h. der Abstand zur Vorderwand beträgt etwa 50% der Länge des horizontalen Transportweges der Warenbahn durch die Behandlungskammern. Die Behandlungskammern werden auch Felder und die Bereiche zwischen den Behandlugskammern Feldstöße genannt.In a device according to the invention with at least two arranged one behind the other Treatment chambers is the roller gear according to claim 9 each in the area in which the abut each other, arranged, d. H. the distance to Front wall is about 50% of the length of the horizontal transport path of the web through the treatment chambers. The treatment chambers are also fields and the Areas between the treatment chambers called field shocks.

Gemäß Anspruch 10 weist der Walzengang zwei Leitwalzen und eine vertikal verstellbare Zugwalze auf, wobei die Leitwalzen dicht hintereinander und die Zugwalze in der Mitte unterhalb der Leitwalzen angeordnet sind. Diese Anordnung der Leitwalzen und Zugwalzen ermöglicht einen schmalen Stoßbereich der Behandlungskammer, d.h. der Bereich oder die Bereiche, in denen keine Düsenkästen angeordnet sind, können klein gehalten werden.According to claim 10, the roller gear has two guide rollers and a vertically adjustable Pull roller on, with the guide rollers close together and the draw roller in the middle below the guide rollers are arranged. This arrangement allows the guide rollers and draw rollers a narrow butting area of the treatment chamber, i. the area or the areas in where no nozzle boxes are arranged, can be kept small.

Eine Zugwalze, die gemäß Anspruch 11 gleichzeitig als Ausrichtwalze ausgebildet ist, erspart zusätzliche Mittel zum Ausrichten der Warenbahn. A draw roller, which is simultaneously formed as an alignment roller according to claim 11, saves additional means for aligning the web.

Gemäß Anspruch 12 weist die erfindungsgemäße Vorrichtung vor und hinter dem Gehäuse jeweils eine Schleuse auf. Die Schleusen erstrecken sich vom Boden bis über die Transportebene der Warenbahn und weisen in Bodennähe und auf Höhe der Transportebene Umlenkwalzen auf. Die Schleusen sind in eine untere, nach unten offene Vorkammer und eine weitere darüber angeordnete Hauptkammer unterteilt. An die Vorkammern können Saugkanäle oder Saugkästen angeschlossen sein. Im Vergleich zu den aus der DE-A 195 46 344 bekannten Einlauf- und Auslaufschlitzen mit Saugkästen wird durch die separaten Schleusen mit Vorkammer und Absaugeinrichtungen das Eindringen von Luft und damit Kondensation von Dampf zu Wasser sicherer verhindert. Eine aus der DE 198 58 839 bekannte Schleuse, in der vor dem Einlaufschlitz des Gehäuses Dampf auf die Warenbahn aufgeblasen wird, ist zum Fixieren von Farbstoff wegen der Gefahr von Farbverläufen weniger geeignet.According to claim 12, the device according to the invention in front of and behind the housing one lock each. The locks extend from the ground to over Transport level of the web and point near the ground and at the level of transport level Deflection rollers on. The locks are in a lower, downwardly open antechamber and a subdivided further arranged above the main chamber. To the antechambers can suction channels or suction boxes connected. In comparison to those known from DE-A 195 46 344 Inlet and outlet slots with suction boxes is through the separate locks with Pre-chamber and suction devices the ingress of air and thus condensation of Steam to water safer prevented. A known from DE 198 58 839 lock in the Before the inlet slot of the housing steam is inflated onto the web, is for Fixing dye less suitable because of the risk of color gradients.

Die Erfindung wird anhand eines in der Zeichnung schematisch dargestellten Beispiels weiter erläutert. Figur 1 zeigt eine Anlage zum Färben mit einer erfindungsgemäßen Vorrichtung zum Farbfixieren. In Figur 2 ist eine Eingangsschleuse, eine erste Behandlungskammer und ein Walzengang der Vorrichtung dargestellt.The invention will be further explained with reference to an example shown schematically in the drawing explained. Figure 1 shows a plant for dyeing with a device according to the invention for Color fixing. In Figure 2 is an entrance lock, a first treatment chamber and a Roller gear of the device shown.

Eine Anlage zum Färben einer textilen Warenbahn 1, z.B. aus Baumwolle oder Zellulose mit Reaktivfarbstoff, weist in Transportrichtung hintereinander angeordnet einen Warenspeicher 2, eine Zufuhrvorrichtung 3, eine Färbevorrichtung 4, einen Luftgang 5, eine Vorrichtung zum Farbfixieren 6, eine weitere Zufuhrvorrichtung 7 und einen weiteren Warenspeicher 8 auf. In diesem Beispiel sind der vordere Warenspeicher 2 als Behälter, die Färbevorrichtung 4 als Foulard, der hintere Warenspeicher 8 als Wickelwalze und die Zufuhrvorrichtungen 3, 7 als Galgen ausgebildet. Die Vorrichtung zum Farbfixieren 6 weist eine Eingangsschleuse 9, ein dampfdichtes, wärmeisoliertes Gehäuse 10 und eine Ausgangsschleuse 11 auf. Das Gehäuse 10 umfaßt mindestens eine, vorzugsweise zwei bis fünf, hier zwei, baukastenartige aneinandergereihte Behandlungskammern 12, 13. Durch die Behandlungskammern 12, 13 ist das Innere des Gehäuses 10 in zwei, hintereinander angeordnete Felder unterteilt. Das Gehäuse 10 ist nicht unterteilt und umfaßt alle Behandlungskammern 12, 13. A plant for dyeing a textile web 1, e.g. made of cotton or cellulose with Reactive dye, has in the transport direction one behind the other arranged a goods storage 2, a feeding device 3, a coloring device 4, an aisle 5, a device for Color fixing 6, another supply device 7 and another goods storage 8. In In this example, the front goods storage 2 as a container, the dyeing device 4 as Foulard, the rear goods storage 8 as a winding roller and the feeders 3, 7 as Gallows trained. The device for color fixing 6 has an entrance lock 9, a vapor-tight, heat-insulated housing 10 and an outlet lock 11. The housing 10 comprises at least one, preferably two to five, here two, modular lined up treatment chambers 12, 13 through the treatment chambers 12, 13 is the interior of the housing 10 divided into two, successively arranged fields. The Housing 10 is not divided and includes all treatment chambers 12, 13th

In jeder der Behandlungskammern 12, 13 ist eine Umluftvorrichtung, d.h. eine Vorrichtung zum Führen von Heißdampf in einem Kreislauf, auch Umluftverfahren genannt, mit einem Umluftventilator 14, einer in Figur 2 nicht dargestellten Heizeinrichtung und mit Düsenkästen 15 mit auf die Warenbahn 1 zielenden Düsenöffnungen angeordnet. In einer Behandlungskammer 12, 13 können mehrere, z.B. jeweils zwei oberhalb und unterhalb der Warenbahn 1 sich quer über die Warenbahn 1 erstreckende Düsenkästen 15 angeordnet sein. Die Düsenöffnungen sind bevorzugt als Schlitze ausgebildet.In each of the treatment chambers 12, 13 is a recirculation device, i. a device for Guiding hot steam in a cycle, also called recirculation method, with a Recirculation fan 14, a heater not shown in Figure 2 and with nozzle boxes 15th arranged with aimed at the web 1 nozzle openings. In a treatment chamber 12, 13 may be several, e.g. two above and below the web 1 is transverse be arranged over the web 1 extending nozzle boxes 15. The nozzle openings are preferably formed as slots.

Eine Transportvorrichtung weist neben Führungswalzen 16, 17 in der Eingangsschleuse 9 und Führungswalzen 18, 19, 20 in und hinter der Ausgangsschleuse 11 im Bereich, in dem die beiden Behandlungskammern 12, 13 aneinanderstoßen, einen Walzengang mit zwei Leitwalzen 21, 22 und einer Zugwalze 23 auf. Der Walzengang ist damit auf der Hälfte des Transportweges der Warenbahn 1 von Einlaufschlitz 27 in der Vorderwand 26 zum Auslaufschlitz 29 in der Hinterwand 28 angeordnet. Dabei sind die beiden Leitwalzen 21, 22 gleich groß und dicht hintereinander auf einer Höhe angeordnet. Die Anordnung der Leitwalzen 21, 22, der letzten Führungswalze 17 der Eingangsschleuse 9 und der ersten Führungswalze 18 der Ausgangsschleuse 11 ist so, daß die Transportebene der Warenbahn 1 in den Behandlungskammern 12, 13 eben und horizontal ist.A transport device has, in addition to guide rollers 16, 17 in the entrance lock 9 and guide rollers 18, 19, 20 in and behind the exit lock 11 in the area in which abut the two treatment chambers 12, 13, a roller gear with two Guide rollers 21, 22 and a draw roller 23. The roller gear is thus on the half of Transport path of the web 1 of inlet slot 27 in the front wall 26 to Outlet slot 29 arranged in the rear wall 28. In this case, the two guide rollers 21, 22nd the same size and arranged one behind the other at a height. The arrangement of the guide rollers 21, 22, the last guide roller 17 of the entrance lock 9 and the first guide roller 18th the exit lock 11 is such that the transport plane of the web 1 in the Treatment chambers 12, 13 is flat and horizontal.

Die Zugwalze 23 ist in der Mitte, unterhalb der Leitwalzen 21, 22 höhenverstellbar angeordnet. Sie ist gleichzeitig als Ausrichtwalze, d.h. in einer durch ihre Achse gehenden Ebene parallel zur Transportebene verstellbar, ausgebildet. Die Höhenverstellbarkeit der Zugwalze 23 ist durch die Pfeile 24 und die Ausrichtbarkeit durch die Pfeile 25 angedeutet. Die Zugwalze 23 ist außerdem mit einem nicht dargestellten Antrieb verbunden.The tension roller 23 is arranged vertically adjustable in the middle, below the guide rollers 21, 22. It is also used as an alignment roller, i. in a plane passing through its axis parallel to Transport plane adjustable, trained. The height adjustment of the draw roller 23 is through the Arrows 24 and the alignability indicated by the arrows 25. The draw roller 23 is also connected to a drive, not shown.

Das Gehäuse 10 weist an einer Vorderwand 26 der ersten Behandlungskammer 12 einen Einlaufschlitz 27 und an einer Hinterwand 28 der letzten Behandlungskammer 13 einen Auslaufschlitz 29 auf, durch die die Warenbahn 1 in das Gehäuse 10 bzw. aus ihm herausgeführt ist. The housing 10 has on a front wall 26 of the first treatment chamber 12 a Inlet slot 27 and on a rear wall 28 of the last treatment chamber 13 a Outlet slot 29, through which the web 1 in the housing 10 and out of it led out.

Die Eingangsschleuse 9 weist ein parallel zur Vorderwand 26 verlaufendes, sich in der Nähe einer unteren Kante 30 bis oberhalb des Einlaufschlitzes 27 erstreckendes Vorderblech 31, ein Deckenblech 32 und zwei nicht dargestellte Seitenbleche auf. Die Bleche 31, 32 der Eingangsschleuse 9 sind dampfdicht miteinander und mit der Vorderwand 26 verbunden. Die Eingangsschleuse 9 ist durch Zwischenbleche 33, 34, die sich vom Vorderblech 31 und von der Vorderwand 26 ins Innere der Eingangsschleuse 9 erstrecken und zwischen sich einen Spalt 35 für die Warenbahn 1 freilassen, in eine obere Hauptkammer 36 und eine unter Vorkammer 37 unterteilt. Die Vorkammer 37 ist nach unten offen. An die Vorkammer 37 ist eine Absaugeinrichtung, in diesem Beispiel ein mit einem nicht dargestellten Ventilator verbundenem Absaugkanal 38 angeschlossen. Gegebenenfalls befinden sich, wie in diesem Beispiel, Saugkästen 39, an die der Saugkanal 38 angeschlossen ist, in der Vorkammer 37. Die erste Führungswalze 16 der Transporvorrichtung befindet sich unterhalb der Vorkammer 37 und die zweite, d.h. letzte Führungswalze 17 vor dem Einlaufschlitz 27.The entrance lock 9 has a running parallel to the front wall 26, in the vicinity a lower edge 30 to above the inlet slot 27 extending front plate 31, a Ceiling plate 32 and two side plates, not shown. The sheets 31, 32 of Entrance lock 9 are vapor-tight with each other and connected to the front wall 26. The Entrance lock 9 is by intermediate plates 33, 34, extending from the front plate 31 and from the Front wall 26 extend into the interior of the entrance lock 9 and between them a gap 35 leave for the web 1, in an upper main chamber 36 and an under Vorkammer 37th divided. The pre-chamber 37 is open at the bottom. To the prechamber 37 is a Suction, connected in this example with a fan, not shown Suction channel 38 connected. If necessary, as in this example, Suction boxes 39, to which the suction channel 38 is connected, in the antechamber 37. The first Guide roller 16 of the transport device is located below the antechamber 37 and the second, i. Last guide roller 17 in front of the inlet slot 27th

Die Ausgangsschleuse 11 ist analog zur Eingangsschleuse 9 aufgebaut. Die erste und zweite Führungswalze 18,19 sind analog zu denen der Eingangsschleuse 9 und die dritte Führungswalze 20 hinter der zweiten hinter der Ausgangsschleuse 11 angeordnet.The exit lock 11 is constructed analogously to the entrance lock 9. The first and second Guide roller 18,19 are analogous to those of the entrance lock 9 and the third Guide roller 20 behind the second arranged behind the exit lock 11.

Zum Färben wird die Warenbahn 1 aus dem Warenspeicher 2 über die als Galgen ausgebildete Zufuhrvorrichtung 3 abgetafelt und durch die als Foulard ausgebildete Färbevorrichtung 4 und den Luftgang 5 der Vorrichtung 6 zum Farbfixieren zugeführt.For dyeing, the web 1 from the goods storage 2 via the trained as a gallows Submitted feeding device 3 and formed by the foulard dyeing device 4 and supplied to the aisle 5 of the device 6 for color fixing.

Die Warenbahn 1 wird dazu um die Führungswalze 16 der Transportvorrichtung von unten in die Vorkammer 37 der Eingangsschleuse 9 durch die Vorkammer 37 und durch den Spalt 35 in die Hauptkammer 36 und um die Führungswalze 17 durch den Einlaufschlitz 27 in die erste Behandlungskammer 12 der Vorrichtung 6 transportiert. Der Transport der Warenbahn 1 durch die Behandlungskammern 12, 13 erfolgt durch den zwischen der ersten und zweiten Behandlungskammer 12, 13 angeordneten Walzengang in einer horizontalen Ebene und unter einer Längsspannung von 10 bis 100 N/m. Im Walzengang wird die Warenbahn 1 mäanderförmig, hintereinander und um die Leitwalze 21, die angetriebene Zugwalze 23 und die Leitwalze 22 herumgeführt. Die gewünschte Längsspannung wird durch Höhenverstellung der Zugwalze 23 eingestellt. Gegebenenfalls auftretende Verschiebungen der Warenbahn 1 werden durch Verstellen der Zugwalze 23, und zwar durch eine Winkelverstellung der Achse der Zugwalze 23 parallel zur Transportebene, ausgeglichen.
Die Warenbahn 1 verläßt die Vorrichtung 6, durch den Ausgangsschlitz 29 und die Ausgangsschleuse 11. Sie wird über eine als Galgen ausgebildete Zufuhrvorrichtung 7 dem als Wickelwalze ausgebildeten Warenspeicher 8 zugeführt. Die Warenbahngeschwindigkeit beträgt z.B. 40 m/min.The web 1 is to the guide roller 16 of the transport device from below into the prechamber 37 of the entrance lock 9 through the prechamber 37 and through the gap 35 into the main chamber 36 and the guide roller 17 through the inlet slot 27 into the first treatment chamber 12 of the device. 6 transported. The transport of the web 1 through the treatment chambers 12, 13 takes place through the roller gear arranged between the first and second treatment chambers 12, 13 in a horizontal plane and under a longitudinal tension of 10 to 100 N / m. In the roll pass, the web 1 is meander-shaped, around and around the guide roller 21, the driven tension roller 23 and the guide roller 22 around. The desired longitudinal tension is adjusted by height adjustment of the tension roller 23. Optionally occurring shifts of the web 1 are compensated by adjusting the tension roller 23, by an angular displacement of the axis of the tension roller 23 parallel to the transport plane.
The web 1 leaves the device 6, through the exit slot 29 and the exit lock 11. It is fed via a designed as gallows supply device 7 designed as a winding roller goods storage 8. The web speed is for example 40 m / min.

In der Färbevorrichtung 4 wird die Warenbahn 1 mit Farbflotte beaufschlagt. Im Luftgang 5 findet eine Vergleichmäßigung der Farbflotte auf der Warenbahn 1 statt.In the dyeing device 4, the web 1 is charged with dye liquor. in the Luftgang 5 is a homogenization of the dye liquor on the web 1 instead.

Die feuchte Warenbahn 1 wird, während sie bis auf den Walzengang eben durch die Behandlungskammer 12, 13 der Vorrichtung 6 transportiert wird, über die oberhalb und unterhalb der Warenbahn 1 angeordneten Düsenkästen 15 mit auf die Warenbahn 1 gerichteten Düsenöffnungen mit Heißdampf beaufschlagt. Der Düsendruck beträgt 200 bis 1000 PA und die Wärmeübergangsleistung etwa 240 W/m2.The moist web 1 is, while it is transported to the roller course just by the treatment chamber 12, 13 of the device 6, applied via the above and below the web 1 arranged nozzle boxes 15 with directed to the web 1 nozzle openings with superheated steam. The nozzle pressure is 200 to 1000 PA and the heat transfer capacity about 240 W / m 2 .

Die Temperatur des Heißdampfes beträgt 160 bis 230° C und die Verweilzeit der Warenbahn 1 in den Behandlungskammern 12, 13 5 bis 60 Sekunden, bevorzugt 10 bis 30 Sekunden. Die Restfeuchte der Warenbahn 1 beim Verlassen des Gehäuses 10 beträgt etwa oder weniger als die Gleichgewichtsfeuchte unter Normalbedingungen, d.h. kleiner oder etwa gleich 10 %. In den Behandlungskammern 12, 13 und in den Hauptkammern 36 der Eingangs- und Ausgangsschleuse 9, 11 wird ein leichter Überdruck aufrechterhalten. Der Dampfgehalt, bevorzugt zwischen 95 und 100 Vol.-%, wird durch Verändern der Menge abgesaugtem Behandlungsgases über die Absaugkanäle 38 der Vorkammern 37 der Eingangs- und Ausgangsschleusen 9, 11 aufrecht erhalten. Eine Regelung einer bestimmten Restfeuchte der Warenbahn ist nicht notwendig. The temperature of the superheated steam is 160 to 230 ° C and the residence time of the web 1 in the treatment chambers 12, 13 5 to 60 seconds, preferably 10 to 30 seconds. The Residual moisture of the web 1 when leaving the housing 10 is about or less than the equilibrium moisture content under normal conditions, i. less than or equal to 10%. In the Treatment chambers 12, 13 and in the main chambers 36 of the input and Exit lock 9, 11 is maintained a slight overpressure. The steam content, preferably between 95 and 100 vol .-%, is aspirated by varying the amount Treatment gas via the suction channels 38 of the antechambers 37 of the input and Exit locks 9, 11 maintained. A regulation of a certain residual moisture of the Web is not necessary.

Beispiel:Example:

Eine mit Farbflotte eines Reaktivfarbstoffes ohne Harnstoff beaufschlagte Warenbahn 1 aus Baumwolle (BG) mit einem Warengewicht von 80 g/m2 wird mit einer Warenbahngeschwindigkeit von 40 m/min durch die Vorrichtung 6 transportiert. Die Temperatur des reinen Heißdampfes beträgt 180° C. Der Düsendruck an den Düsenöffnungen der Düsenkästen 15 beträgt 700 PA. Schon nach einer Verweilzeit von 5 Sekunden hat der überwiegende Teil des Farbstoffes mit den Fasern der Warenbahn 1 reagiert und ist fixiert. Nach weiteren 5 Sekunden ist die Warenbahn 1 vollständig getrockne und der restliche Teil des Farbstoffs fixiert. Die Eingangsfeuchte von etwa 80% reduziert sich in der Vorrichtung 6 auf einen Wert kleiner als 10 %. Die gesamte Verweilzeit der Warenbahn 1 in der Vorrichtung 6 beträgt 10 Sekunden. A fabric web 1 of cotton (BG) with a fabric weight of 80 g / m 2 applied with dye liquor of a reactive dye without urea is transported through the device 6 at a web speed of 40 m / min. The temperature of the pure hot steam is 180 ° C. The nozzle pressure at the nozzle openings of the nozzle boxes 15 is 700 PA. Even after a residence time of 5 seconds, the majority of the dye has reacted with the fibers of the web 1 and is fixed. After another 5 seconds, the web 1 is completely dried and the remaining part of the dye is fixed. The input moisture of about 80% is reduced in the device 6 to a value less than 10%. The total residence time of the web 1 in the device 6 is 10 seconds.

4. Bezugszeichenliste 4. List of reference numerals

11
Warenbahnweb
22
Warenspeichergoods storage
33
Zufuhrvorrichtungfeeding apparatus
44
Färbevorrichtungdyeing apparatus
55
Luftgangskying
66
Vorrichtungcontraption
77
Zufuhrvorrichtungfeeding apparatus
88th
Warenspeichergoods storage
99
Eingangsschleuseentry lock
1010
Gehäusecasing
1111
Ausgangsschleuseexit lock
1212
Behandlungskammertreatment chamber
1313
Behandlungskammertreatment chamber
1414
Umluftventilatorcirculation fan
1515
Düsenkastennozzle box
1616
Führungswalzeguide roller
1717
Führungswalzeguide roller
1818
Führungswalzeguide roller
1919
Führungswalzeguide roller
2020
Führungswalzeguide roller
2121
Leitwalzeguide roll
2222
Leitwalzeguide roll
2323
Zugwalzepulling roller
2424
Pfeilearrows
2525
Pfeilearrows
2626
Vorderwandfront wall
2727
Einlaufschlitzinlet slot
2828
Hinterwandbehind wall
2929
Auslaufschlitzoutlet slot
3030
untere Gehäusekantelower case edge
3131
Vorderblechfront plate
3232
Deckenblechdecking
3333
Zwischenblechintermediate plate
3434
Zwischenblechintermediate plate
3535
Spaltgap
3636
Hauptkammermain chamber
3737
Vorkammerantechamber
3838
Absaugkanalsuction
3939
Saugkästensuction boxes

Claims (6)

Vorrichtung zur kontinuierlichen Wärmebehandlung einer textilen Warenbahn, insbesondere zum Farbfixieren, mit einem dampfdichten Gehäuse mit mindestens einer Behandlungskammer mit mindestens einer Umlufteinrichtung mit mindestens einem Umluftventilator und oberhalb und unterhalb der Warenbahn angeordneten Düsenkästen, mit einer Transportvorrichtung zum im wesentlichen ebenen Führung der Warenbahn durch das Gehäuse, dadurch gekennzeichnet, dass die Transportvorrichtung mindestens einen mit Abstand zu einer Vorderwand (26) des Gehäuses (10) angeordneten Walzengang aufweist.Apparatus for the continuous heat treatment of a textile web, in particular for ink fixing, with a vapor-tight housing having at least one treatment chamber with at least one recirculation device with at least one recirculation fan and above and below the web arranged nozzle boxes, with a transport device for substantially planar guidance of the web through the housing , characterized in that the transport device has at least one spaced apart from a front wall (26) of the housing (10) roller gear. Vorrichtung nach Anspruch 1, mit mindestens zwei Behandlungskammern, dadurch gekennzeichnet, dass der Walzengang im Bereich, in dem die Behandlungskammer (12, 13) aneinanderstoßen, angeordnet ist.Apparatus according to claim 1, having at least two treatment chambers, characterized in that the roller gear in the region in which the treatment chamber (12, 13) abut each other, is arranged. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass der Walzengang zwei Leitwalzen (21, 22) und eine Zugwalze (23) aufweist, wobei die Leitwalzen (21, 22) dicht hintereinander und die Zugwalze (23) in der Mitte unterhalb der Leitwalzen (21, 22) angeordnet sind.Apparatus according to claim 2, characterized in that the roller gear comprises two guide rollers (21, 22) and a tension roller (23), wherein the guide rollers (21, 22) close one behind the other and the tension roller (23) in the middle below the guide rollers (21 , 22) are arranged. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Zugwalze (23) gleichzeitig als Ausrichtwalze ausgebildet ist.Apparatus according to claim 3, characterized in that the tension roller (23) is simultaneously formed as an alignment roller. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass vor und hinter dem Gehäuse (10) eine Eingangsschleuse (9) und eine Ausgangsschleuse (11) angeordnet sind, sich die Eingangs- und Ausgangsschleuse (9, 11) von Bodennähe bis über eine Transportebene der Warenbahn (1) erstrecken und in Bodennähe nach unten offene, mit Absaugeinrichtungen verbundene Vorkammern (37) aufweisen.Device according to one of claims 1 to 4, characterized in that in front of and behind the housing (10) an entrance lock (9) and an exit lock (11) are arranged, the entrance and exit lock (9, 11) from ground level to about have a transport plane of the web (1) and near the bottom downwardly open, with suction connected awnings (37). Anlage zum Färben einer textilen Warenbahn, gekennzeichnet durch eine Vorrichtung zum Farbfixieren gemäß einem der Ansprüche 1 bis 5.Plant for dyeing a textile web, characterized by a device for color fixing according to one of claims 1 to 5.
EP05011446A 1999-05-28 2000-05-17 Device for the continuous heat treatment of a textile fabric, particularly for fixing of dyestuffs Expired - Lifetime EP1589141B1 (en)

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DE19924433 1999-05-28
DE19924433 1999-05-28
EP00110489A EP1063337B1 (en) 1999-05-28 2000-05-17 Method for the continuous heat treatment of a textile fabric, particularly for fixing of dyestuffs

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EP00110496A Expired - Lifetime EP1055763B1 (en) 1999-05-28 2000-05-17 Method for the continuous steam treatment of a textile fabric to fix reactive dyestuffs on natural fibres
EP00110489A Expired - Lifetime EP1063337B1 (en) 1999-05-28 2000-05-17 Method for the continuous heat treatment of a textile fabric, particularly for fixing of dyestuffs
EP05011446A Expired - Lifetime EP1589141B1 (en) 1999-05-28 2000-05-17 Device for the continuous heat treatment of a textile fabric, particularly for fixing of dyestuffs
EP06020559A Withdrawn EP1746191A3 (en) 1999-05-28 2000-05-17 Method and device for the continuous steam treatment of a textile fabric to fix reactive dyestuffs on natural fibres

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EP (4) EP1055763B1 (en)
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Publication number Priority date Publication date Assignee Title
FR1090013A (en) * 1953-08-06 1955-03-25 Improvements to heat treatments intended for the development and fixing of coloring matters on fabric, paper and other supports
US3234662A (en) * 1958-02-21 1966-02-15 Ind Ovens Inc Web and strand treating apparatus
FR1536604A (en) * 1967-09-05 1968-08-16 Continental Gummi Werke Ag Device for the treatment of a material in the form of a strip, and in particular strips for the covering of tires
DE19546344A1 (en) * 1995-12-12 1997-06-19 Babcock Textilmasch Device for the heat treatment of continuous material webs

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105350196A (en) * 2015-11-06 2016-02-24 德清县龙奇丝绸炼染有限公司 Textile fabric space dyeing machine
CN105350196B (en) * 2015-11-06 2018-01-12 德清县龙奇丝绸炼染有限公司 Weaving face fabric section dyeing machine

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EP1063337A2 (en) 2000-12-27
EP1063337B1 (en) 2005-08-24
US20020170118A1 (en) 2002-11-21
EP1055763A3 (en) 2002-01-30
DE50013624D1 (en) 2006-11-30
US20020124327A1 (en) 2002-09-12
US6471729B1 (en) 2002-10-29
DK1055763T3 (en) 2007-02-19
EP1063337A3 (en) 2002-01-30
DE10023721A1 (en) 2001-02-08
EP1055763B1 (en) 2006-10-18
ATE382729T1 (en) 2008-01-15
US6591639B2 (en) 2003-07-15
EP1746191A3 (en) 2007-02-21
ES2247977T3 (en) 2006-03-16
EP1746191A2 (en) 2007-01-24
EP1589141B1 (en) 2008-01-02
ATE343010T1 (en) 2006-11-15
DE10023722A1 (en) 2000-11-30
ATE302868T1 (en) 2005-09-15
DE50014901D1 (en) 2008-02-14
EP1055763A2 (en) 2000-11-29
US7089767B2 (en) 2006-08-15
DE50011009D1 (en) 2005-09-29
US6485526B1 (en) 2002-11-26
DK1063337T3 (en) 2006-01-09

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