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EP0445245B1 - Process and device for processing a continuous strip of material, in particular woven textile material - Google Patents

Process and device for processing a continuous strip of material, in particular woven textile material Download PDF

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Publication number
EP0445245B1
EP0445245B1 EP90913321A EP90913321A EP0445245B1 EP 0445245 B1 EP0445245 B1 EP 0445245B1 EP 90913321 A EP90913321 A EP 90913321A EP 90913321 A EP90913321 A EP 90913321A EP 0445245 B1 EP0445245 B1 EP 0445245B1
Authority
EP
European Patent Office
Prior art keywords
shaft
material web
walls
nozzles
treatment
Prior art date
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 - Lifetime
Application number
EP90913321A
Other languages
German (de)
French (fr)
Other versions
EP0445245A1 (en
Inventor
Hans Weber
Werner Keller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Benninger AG Maschinenfabrik
Original Assignee
Benninger AG Maschinenfabrik
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Benninger AG Maschinenfabrik filed Critical Benninger AG Maschinenfabrik
Publication of EP0445245A1 publication Critical patent/EP0445245A1/en
Application granted granted Critical
Publication of EP0445245B1 publication Critical patent/EP0445245B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06BTREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B21/00Successive treatments of textile materials by liquids, gases or vapours
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06BTREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B1/00Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
    • D06B1/02Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by spraying or projecting
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06BTREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B5/00Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating
    • D06B5/02Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through moving materials of indefinite length
    • D06B5/08Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through moving materials of indefinite length through fabrics

Definitions

  • the invention relates to a method for treating a material web, in particular a fabric web according to the preamble of claim 1. Such treatment methods are used above all for washing fabric webs in order to remove residues of dyes, sizing agents and other treatment agents. The method could also be used for purposes other than cleaning the material web, e.g. for impregnation or the like.
  • the invention also relates to a device suitable for carrying out the method.
  • the web is conveyed through two communicating chambers, the aim being to achieve a high flow rate in the chambers by drawing in liquor from a chamber by means of a pump and in the another chamber is introduced at high speed via a tangential nozzle.
  • SU-A 1145063 describes a method for washing a continuously moving textile web, in which the textile web is passed through narrow chambers.
  • the width of the chambers is between 3 to 20mm.
  • Nozzles are arranged in the chambers, from which a washing liquid is applied to the textile web under turbulent flow.
  • the concentration of the wash liquor to be disposed of should be as high as possible so that the substances contained therein can also be recovered if necessary.
  • this object is achieved by a method which has the features in claim 1.
  • the narrow shaft practically forms a nozzle in which the treatment medium can act intensively and for a sufficiently long period of time on the material web. Maintaining an overpressure relative to atmospheric pressure causes a turbulent flow of relatively high speed in one direction of the shaft.
  • the use of a vaporous or gaseous treatment medium has the advantage that the use of liquid treatment medium can be kept as small as possible.
  • the substances detached from the material web by the steam accumulate in high concentration in the liquid component, while the steam can be easily sucked off and fed in again after a preparation process.
  • the material web can also be supplied with a liquid treatment medium from a separate nozzle arrangement. It is also conceivable to use saturated water vapor and / or air and washing liquor, each medium being introduced into the chamber from a separate nozzle arrangement or applied to the material web.
  • a washing liquor applied to the material web can subsequently be discharged again, for example, or partially evaporated through a gaseous medium, so that no special squeeze rollers are required to squeeze out the washing water.
  • the treatment media are preferably applied on both sides of the material web and / or one behind the other in the direction of movement. However, it would also be conceivable to apply the material web only on one side, or to introduce different treatment media on different sides or at different points in the shaft.
  • a rising and a descending run of the material web is particularly advantageously passed through a separate shaft, the treatment medium being applied to both shafts at the upper end and the two shafts communicating with one another at the upper end and the treatment medium being discharged at the lower end of the two shafts become.
  • the material web can also pass through several, for example vertical, shafts which are arranged next to one another or one above the other and in which treatment medium is applied at the upper end and in which the treatment medium is discharged at the lower end.
  • the liquid component of the Treatment media are collected in a tub, which can also be designed as an immersion bath.
  • the liquid could also be removed directly from the shaft.
  • the liquid collected on a shaft is particularly advantageously fed in countercurrent to the nozzle arrangement of an upstream shaft. This countercurrent principle is mainly used for washing, with increasingly pure washing water being applied with increasing cleaning stages.
  • the liquid treatment medium of the last treatment zone can be fresh water.
  • the pressure and / or the amount of the treatment media supplied can preferably be controlled separately for each medium. Depending on the nature of the material web, different conditions can be achieved in the treatment zones.
  • the method can be carried out particularly simply and advantageously with a device which has the features of claim 9.
  • the shaft can be loaded with any liquid, gaseous or, under certain circumstances, even solid treatment media in the form of a granulate. So it would be e.g. it is conceivable to apply a free-flowing sand to the material web in order to achieve a certain surface effect. A subsequent air nozzle could in turn blow away any sand particles still adhering to it.
  • At least three nozzle arrangements in the form of separate collector tubes are connected to one another. In this way, several different treatment media can be used in succession, but it is also possible, if necessary, to switch off individual collector tubes. This makes it possible for the device to be used for very different purposes without expensive conversion work Purposes can be used.
  • Opposing nozzle arrangements are preferably present on both sides of the material web. A deflection of the material web as a result of the pressurization can thus be prevented since the pressure of the media flowing against one another cancel each other out.
  • the distance between the material web and the nozzle arrangement is preferably adjustable. In this way it can be achieved that the material web runs through a narrow slot in the treatment zone without any friction points.
  • the collector tubes used as a nozzle arrangement preferably have a rectangular cross section, since these tubes can be connected to a unit in a particularly advantageous manner.
  • the interconnected collector tubes preferably form a gas-tight wall section of the treatment zone, which can be removed and / or moved. This design has the advantage over the known treatment zones that a gas-tight chamber does not have to be built around the nozzle arrangements.
  • the connections for the collector tubes are directly accessible from the outside, so that no additional bushings or seals are required.
  • the collector tubes or the treatment zones can be arranged at any relative position of the material web.
  • several vertical shafts are preferably arranged next to one another, a separate chamber being provided below each shaft.
  • at least one chamber can be connected to the suction line of a pump, the pressure line of which leads to a collector tube which is assigned to an upstream shaft.
  • the collector tubes can have nozzles whose flow axes or planes to the passage plane of the material web are inclined.
  • the axes or planes can also be arranged at right angles to the material web.
  • the axes or planes of adjacent collector tubes intersect, the point of intersection being in front of, on or behind the material web.
  • each shaft has hollow side walls in cross section and in that a heating medium can be conducted through the side walls.
  • the side walls can be formed by horizontally stacked hollow box profiles, the ends of which are closed at the end and which are connected to one another by openings. This creates a particularly stable and torsion-resistant shaft construction.
  • the heating of the cavity walls causes the outside of the wall construction to have approximately the same temperature as the inside facing the textile web. This excludes temperature-related changes in position.
  • the heating of the side walls ensures that the vaporous treatment medium does not condense out too quickly.
  • the collector tubes used as nozzle arrangements can be formed by the same hollow box profiles as the side walls.
  • the side walls thus form a compact unit in which the nozzle arrangements are integrated.
  • the gap width of each shaft is preferably adjustable by means of an adjusting device, so that the optimal gap width can be selected in individual cases.
  • FIG. 1 shows a high-performance washing compartment 1, which is constructed on the principle of a so-called roller skid and which has an upper roller 2 and two lower rollers 3a and 3b.
  • the latter are stored in a trough 4, which can be designed with or without subdivision 5, depending on the intended use of the washing compartment, or which is fed with or without countercurrent flow.
  • the trough 4 has e.g. an outlet 6 for emptying the chamber 7 and a pump connection 8 for the supply or discharge of washing liquor. If a counterflow is provided, the wash liquor is fed through the counterflow inlet 9 and discharged through the counterflow outlet 10.
  • the trough 4 is largely sealed against the escape of steam by cover plates 11 or by the cover 12, the fabric web 15 being immersed in the trough 4 via an inlet opening 13 and being withdrawn from the trough via an outlet opening 14.
  • the fabric outlet opening 14 is of course connected in a shaft-like manner with the fabric inlet opening 13 of the subsequent washing compartment, so that steam losses are largely avoided. (See e.g. Fig. 6).
  • the two shafts 16 and 17 are arranged, so that the ascending and descending strands of the fabric web guided over the top roller 2 each run into a separate shaft.
  • outside side covers 18 are provided which facilitate the pulling in of the fabric web 15 and which allow the material web to be observed.
  • the upper roller 2 rotatably supported in the upper part 19 deflects the fabric web 15 by approximately 180 °.
  • the two shafts 16 and 17 having to be inclined accordingly.
  • the upper part 19 is sealed with a cover 20, so that the fabric web is easily accessible from all sides.
  • the upper part 19 forms a chamber which connects the two shafts 16 and 17 to one another in a pressure-tight manner.
  • each collector 21a to 21d which consist of individual collector tubes and are integrated into the shaft, are arranged. Details of this section can be seen from FIGS. 2 and 3.
  • Each collector 21a to 21d consists of three collector tubes 33, 34 and 35 which are rectangular in cross section.
  • the tubes could possibly also be of exactly square design.
  • the tubes are welded to one another in a gas-tight manner, a fastening strip 27 or 28 being welded to the uppermost tube 33 and the lowest tube 35.
  • the individual collectors are thus designed directly as a gas-tight wall section of the shaft.
  • the collectors also each form a connecting wall between the shafts 16 and 17 and the upper part 19. In order to enable the collectors to be moved laterally in the simplest way, intermediate pieces 22 and 23 are installed.
  • a side wall 56a or 56b is provided, which is pressed sealingly against the collectors.
  • This side wall could possibly also seal the individual collector tubes directly to the side.
  • the collectors could also have a bellows or another flexible wall, e.g. be sealed from rubber or the like.
  • Each collector pipe 33 to 35 is provided with a separate connection piece 36, 37 and 38, each connection piece being arranged approximately in the middle of the collector pipe. This ensures a uniform distribution across the entire width. Under certain circumstances, however, several connecting pieces could also be distributed over the entire length of a collector tube.
  • support bolts 42 can be welded into the pipes at certain intervals.
  • the nozzles directed against the fabric web 15 can be designed in very different ways.
  • the tubes 33 and 34 are provided with a multiplicity of outlet openings 39 and 40, through which the treatment medium fed in can strike the fabric web 15 obliquely at an angle 41.
  • larger outlet openings 43 are arranged in the collector tube 35 and are directed at right angles against the fabric web 15.
  • a slot nozzle could extend over the entire length of a collector tube.
  • the nozzles of the collector tubes 33, 34 and 35 are parallel to one another Fabric web 15 arranged level. It would of course also be conceivable that each individual collector tube of a collector can be adjusted separately, so that the nozzles can be arranged at different distances from the fabric web. However, it would also be conceivable for the individual collector tubes to be connected to one another in such a way that the nozzles of the individual tubes are at different distances from the fabric web. Finally, it would even be conceivable that the nozzle cross section can be changed from the outside with a slide or the like, or that individual nozzle openings can be completely covered in the same way.
  • the diameters of the outlet openings 39 and 40 are in the range of approximately 1 mm and the diameter of the outlet openings 43 in the range of approximately 4 mm.
  • the distance between the shaft walls of the shafts 16 and 17 is generally approximately the same as the distance 25 between the collectors 21a and 21b or 21c and 21d, that is to say approximately 4 mm, wherein, as already mentioned, different distances are possible between the individual collector tubes .
  • the distance could also be be larger and be up to 40 mm. So that the fabric web 15 is not damaged by the very close collector tubes 33 to 35, these are provided with relatively large rounding radii at the corners. These also allow a recessed welding, whereby no protruding weld seams are formed.
  • the steam that is fed in can have a temperature of, for example, 105-110 degrees Celsius.
  • a pressure of approximately 0.8 bar can build up in the shaft or in the upper part 19.
  • the vaporous medium flows downward at a relatively high speed under a turbulent flow in the shaft, partially mixing with the wash water and evaporating it.
  • the treatment media flowing downward have a high degree of loading, the liquor collected in the trough 4 having a high concentration.
  • Steam and / or air are drawn off in the lower end of the shaft and can be reused in an internal circuit.
  • the blowing in of air can e.g. serve to carry out certain chemical reactions, e.g. oxidation of individual substances.
  • High temperature compressed air which is relatively easy to generate, could also only serve to reduce steam consumption.
  • FIG 4 the wiring to the collectors 21a to 21d is shown schematically.
  • a separate flow meter 47 is provided, which is followed by a manual valve 48 for manual flow control.
  • the lines divide into the feeds to the individual collector tubes 33 to 35, wherein each collector tube can also be provided with a manual valve 49.
  • the feed lines to the internal collectors 21b and 21c are not shown.
  • the respective pressure could also be set, in particular in the case of the gaseous treatment media.
  • the supply of the individual treatment media is preferably regulated automatically, the desired values being able to be set on a setpoint generator.
  • the addition of certain additives to support the washing process could also be included in the regulation.
  • the arrangement shown in the exemplary embodiment is based on the idea of greatly reducing water consumption by the use of air and / or steam and additionally improving and accelerating the cleaning effect for the tissue.
  • the intensive flow against the fabric web 15 leads to a rapid detachment of the contaminants, the effect of the nozzles on the collector tubes being further supported by the high fabric web speed.
  • the washed-out components e.g. Starch size or dyes in high concentration, which facilitates cleaning of the wastewater.
  • FIG. 5 shows the flow conditions at a washing stage in principle again.
  • the same or similar conditions could also exist in other treatment processes such as desizing, impregnation or post-treatment.
  • the strand 50 of the fabric web 15 leading upwards to the upper roller 2 is first sprayed with a small amount of water 46.
  • the water jet is then immediately overlaid with an intense jet of air 45 or steam 44, so that mixing with the water 46 takes place.
  • Similar to lying the conditions for the downward run 51 the application of the individual treatment media taking place in reverse order.
  • the additional supply of air 45 to the steam 44 has the advantage that the very energy-intensive steam 44 can be reduced to a minimum.
  • only air is used, which may be heated to a certain temperature.
  • the sequence on the downward run 51 could also be changed such that water 46, then air 45 and then steam 44 are applied in the feed direction.
  • FIG. 6 shows an alternative exemplary embodiment of the invention with several washing compartments.
  • the individual washing compartments can be designed approximately the same as shown in Figure 1.
  • the connection is made with the aid of an intermediate chamber 54, which connects two washing compartments in a vapor-tight manner.
  • An upper roller is also arranged in the intermediate chamber 54. Air and steam are supplied directly to the individual treatment zones, roughly according to the diagram in FIG. 4.
  • the washing water is preferably fed in countercurrent. For example, liquid is taken from the last chamber 7d of the second compartment with the aid of the pump 52 and fed into the collector 21a of the second compartment 1b via the counterflow guide 53.
  • the washing liquid flows through the shaft into the chamber 7c of the second compartment 1b assigned to the collector 21a and is again sucked off via the pump connection 8 with the aid of a pump and fed to the collector 21d of the first compartment 1a.
  • the liquid is again sucked out of the chamber 7d of the first compartment la and fed to the collector 21a of the first compartment until the liquid is completely removed from the first chamber 7a via the outlet 6. Without an interposed pump, the liquor level could be compensated via the connections 9 and 10 between the chambers 7b and 7c will.
  • fresh water is fed into the collector 21d of the second compartment 1b via the fresh water supply 55.
  • fresh water is also fed onto the top roller of the second compartment 1b, so that the liquor in the chamber 7d has only a low degree of contamination.
  • FIG. 7 shows a fabric web guide in which the collectors 21 are arranged only on an ascending run.
  • a first shaft 58 leads to a first deflecting roller 60. From there, the fabric web is guided onto the lower second deflecting roller 61 and at the same time immersed in an intermediate bath 62. The fabric web then rises again through the second shaft 59, on which in turn collectors are arranged.
  • the intermediate bath 62 is provided with a drain which e.g. can be designed as a suction line of a pump.
  • the exemplary embodiment according to FIGS. 8a and 9 shows a device which, from a procedural point of view, works the same as the device according to FIG. 1, but which has a different construction.
  • the ascending shaft 63 and the descending shaft 64 are practically continuously formed by hollow side walls.
  • the left half of the picture shows a cross section through the ascending shaft 63, while the right half shows a side view.
  • the inner side walls 66a and 66b are firmly connected to one another and are held on both ends by columns 71.
  • the outer side walls 65a and 65b can be adjusted or opened in the manner described in more detail below. This allows the gap width of each shaft to be optimally adjusted, and the shafts are easily accessible for preparation or cleaning work.
  • the side walls are essentially formed by stacked hollow box profiles 68 which are closed at the end.
  • the three uppermost hollow box profiles 76, 77 and 78 form the collector tubes with the outlet nozzles 95 directed towards the shaft.
  • the connection options and the effect of these collector tubes have already been described above.
  • a connection piece 74 is provided on each side wall, via which e.g. Water vapor can be fed.
  • the hollow box profiles are connected to one another with openings in such a way that the heating steam flows downward in a meandering manner, as indicated by the arrows in FIG. 9.
  • the steam or the condensate is discharged at the outlet connection 75. This measure achieves a uniform temperature in the hollow side walls, so that no undesirable deflections can occur.
  • the steam emerging at the lower end of the shaft is discharged via a steam outlet 84 while the liquid component runs into the tub 83.
  • the two outer side walls 65a and 65b are suspended on the pillars 71 or on a crossbar connecting the two pillars on both sides, each with a pressure medium cylinder 82. At the same time, however, the outer side walls are also laterally connected to the columns 71 via articulated lever 81. In this way, the side walls can be opened like a parallelogram in the direction of arrow a, as shown in FIG. 8b.
  • the pressure medium cylinders 82 only serve to hold the side walls or to determine the degree of opening.
  • Tensioning rods 79 are fastened to the columns 71 at certain intervals and can be pivoted out laterally about the pivot pin 86 in the direction of the arrow b.
  • the tension rods are provided with a thread on which a tension lever or a handwheel is screwed. While the inner side walls 66a and 66b are arranged firmly between the columns 71, the outer side walls 65a and 65b have lateral counterparts 92, into which the tension rods 79 can be inserted via a lateral slot 94.
  • the tensioning levers 80 engage the counterparts so that the outer side walls can be pressed against the inner side walls.
  • the shaft 64 is laterally sealed on the sealing surface 87, which can be machined precisely.
  • This sealing surface is e.g. formed by a bar that is welded to the side of the column 71.
  • the column practically forms an end wall for the shaft 64.
  • An elastic seal 89 is pressed onto the sealing surface 87 with the aid of a sealing strip 88.
  • the sealing strip is provided at regular intervals with an elongated hole 93 through which a clamping screw 91 engages in a side part 90.
  • the sealing strip 88 can be adjusted in the direction of the arrow c relative to the side part 90 and thus relative to the outer side wall 65b, with which the gap width of the shaft 64 can also be adjusted.
  • the two shafts 63 and 64 communicate with one another at the upper end via a chamber 67.
  • This chamber is delimited at the top by a cover 69.
  • a deflecting roller 72 is arranged in the chamber, and spreading rollers 73 can also be provided.
  • the deflection zone can be observed on both sides through portholes 70.
  • Reinforcing profiles 85 extend over the entire height of the outer side walls.
  • the outer side walls can also be provided with an insulation layer on the outside in order to keep the heat losses as low as possible.

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

Abstract

The continuous strip of material (15) is fed through a processing zone formed by several annular tubes (33, 34, 35) and a shaft. Each tube has a separate inlet (36, 37, 38) and can be supplied with its own treatment agent. The tubes preferably form a unit which can be moved to a limited extent with respect to the strip of material (15). The combined use of liquid and gaseous treatment agents (44, 45, 46) makes it possible to produce an intensive action, for washing or impregnation purposes for instance.

Description

Die Erfindung betrifft ein Verfahren zum Behandeln einer Materialbahn, insbesondere einer Gewebebahn gemäss dem Oberbegriff von Anspruch 1. Derartige Behandlungsverfahren werden vor allem beim Waschen von Gewebebahnen eingesetzt, um Rückstände von Farbstoffen, Schlichtemitteln und anderen Behandlungsmitteln zu beseitigen. Das Verfahren könnte aber auch für andere Zwecke als zur Reinigung der Materialbahn eingesetzt werden, so z.B. zum Imprägnieren oder dergleichen. Die Erfindung bezieht sich auch auf eine für die Durchführung des Verfahrens geeignete Vorrichtung.The invention relates to a method for treating a material web, in particular a fabric web according to the preamble of claim 1. Such treatment methods are used above all for washing fabric webs in order to remove residues of dyes, sizing agents and other treatment agents. The method could also be used for purposes other than cleaning the material web, e.g. for impregnation or the like. The invention also relates to a device suitable for carrying out the method.

Es sind bereits gattungsmässig vergleichbare Verfahren bzw. Vorrichtungen bekannt, bei denen Waschwasser aus einer sich über die ganze Breite der Materialbahn erstreckenden Düsenanordnung gegen die Materialbahn gespritzt wird. So zeigt beispielsweise die EP-A-43 083 eine Vorrichtung zum Waschen langer Bahnen, bei der auf beiden Seiten der Materialbahn mit gegenseitigem Abstand je eine Waschdüsenanordnung vorgesehen ist, die aus einem kastenförmigen Körper besteht. Die Düsen bilden zusammen mit der zu waschenden textilen Bahn kammerartige Ausnehmungen, so dass die Bahn sehr intensiv mit frischem Waschwasser behandelt wird. In der DE-A-14 60 174 ist ein Verfahren und eine Vorrichtung zum kontinuierlichen Nassbehandeln von Textilgutbahnen mit Flüssigkeiten beschrieben. Um mit einer möglichst kleinen Flottenmenge einen hohen Wirkungsgrad zu erzielen, wird die Bahn durch zwei kommunizierende Kammern befördert, wobei in den Kammern eine hohe Strömungsgeschwindigkeit angestrebt wird, indem mittels einer Pumpe aus einer Kammer Flotte angesaugt wird und in der andern Kammer mit grosser Geschwindigkeit über eine Tangentialdüse eingeleitet wird.Comparable methods and devices are already known, in which washing water is sprayed against the material web from a nozzle arrangement that extends over the entire width of the material web. For example, EP-A-43 083 shows a device for washing long webs, in which a washing nozzle arrangement is provided on both sides of the material web with a mutual spacing, which consists of a box-shaped body. Together with the textile web to be washed, the nozzles form chamber-like recesses, so that the web is treated very intensively with fresh wash water. DE-A-14 60 174 describes a method and a device for the continuous wet treatment of textile material webs with liquids. In order to achieve a high degree of efficiency with the smallest possible amount of liquor, the web is conveyed through two communicating chambers, the aim being to achieve a high flow rate in the chambers by drawing in liquor from a chamber by means of a pump and in the another chamber is introduced at high speed via a tangential nozzle.

Die SU-A 1145063 beschreibt ein Verfahren zum Waschen einer sich kontinuierlich bewegenden Textilbahn, bei dem die Textilbahn durch schmale Kammern geführt wird. Die Weite der Kammern beträgt zwischen 3 bis 20mm. In den Kammern sind Düsen angeordnet, aus denen die Textilbahn unter turbulenter Strömung mit einer Waschflüssigkeit beaufschlagt wird.SU-A 1145063 describes a method for washing a continuously moving textile web, in which the textile web is passed through narrow chambers. The width of the chambers is between 3 to 20mm. Nozzles are arranged in the chambers, from which a washing liquid is applied to the textile web under turbulent flow.

Die bekannten Verfahren und Vorrichtungen befassen sich in der Regel nur damit, wie ein flüssiges Behandlungsmedium besonders wirksam auf die Materialbahn aufgebracht werden kann bzw. wie es wieder entfernt werden kann. Dem sparsamen Einsatz von Wasser und dem Problem der Entsorgung wurde bisher noch nicht genügend Beachtung geschenkt. So ist z.B. der Waschwirkungsgrad weitgehend eine Funktion der zugeführten Wassermenge pro Kilogramm Ware. Um die gewünschten Wirkungsgrade zu erzielen, mussten bisher beträchtliche Wassermengen eingesetzt werden. Frischwasser verursacht jedoch in zunehmendem Masse hohe Kosten, wobei auch die Probleme mit der Klärung des Schmutzwassers mitberücksichtigt werden müssen.The known methods and devices generally only deal with how a liquid treatment medium can be applied to the material web particularly effectively or how it can be removed again. So far, the economical use of water and the problem of disposal have not been given sufficient attention. For example, the washing efficiency is largely a function of the amount of water supplied per kilogram of goods. So far, considerable amounts of water had to be used to achieve the desired efficiency. However, fresh water is increasingly causing high costs, whereby the problems with the clarification of the dirty water must also be taken into account.

Es ist daher eine Aufgabe der Erfindung, ein Verfahren der eingangs genannten Art zu schaffen, bei dem unter einem möglichst sparsamen Einsatz der Behandlungsmedien ein hoher Behandlungswirkungsgrad erreicht wird, und bei dem insbesondere eine Gewebebahn unter geringer Frischwasserzufuhr mit einfachen und technisch leicht kontrollierbaren Mitteln gewaschen werden kann. Die Konzentration der zu entsorgenden Waschflotte soll so hoch wie möglich sein, so dass ggf. auch eine Rückgewinnung der darin enthaltenen Stoffe möglich ist. Diese Aufgabe wird erfindungsgemäss mit einem Verfahren gelöst, das die Merkmale im Anspruch 1 aufweist.It is therefore an object of the invention to provide a method of the type mentioned, in which a high degree of treatment efficiency is achieved by using the treatment media as sparingly as possible, and in which, in particular, a fabric web is washed with simple and technically easily controllable means with a low fresh water supply can. The concentration of the wash liquor to be disposed of should be as high as possible so that the substances contained therein can also be recovered if necessary. According to the invention, this object is achieved by a method which has the features in claim 1.

Der enge Schacht bildet praktisch selbst eine Düse, in welcher das Behandlungsmedium intensiv und während einer genügend langen Zeitspanne auf die Materialbahn einwirken kann. Die Aufrechterhaltung eines Ueberdrucks relativ zum Atmosphärendruck bewirkt eine turbulente Strömung von relativ hoher Geschwindigkeit in eine Richtung des Schachtes. Die Verwendung eines dampfförmigen bzw. gasförmigen Behandlungsmediums hat den Vorteil, dass der Einsatz von flüssigem Behandlungsmedium so klein wie möglich gehalten werden kann. Die durch den Dampf von der Materialbahn abgelösten Stoffe fallen in hoher Konzentration in der flüssigen Komponente an, während der Dampf leicht abgesaugt und nach einem Aufbereitungsprozess wieder neu eingespeist werden kann. Die Materialbahn kann aus einer separaten Düsenanordnung zusätzlich mit einem flüssigen Behandlungsmedium beaufschlagt werden. Denkbar ist auch der Einsatz von gesättigtem Wasserdampf und/oder Luft und von Waschflotte, wobei jedes Medium aus einer separaten Düsenanordnung in die Kammer eingebracht bzw. auf die Materialbahn appliziert wird. Eine auf die Materialbahn aufgetragene Waschflotte kann z.B. nachfolgend durch ein gasförmiges Medium wieder abgeführt bzw. teilweise verdampft werden, so dass keine speziellen Quetschwalzen zum Abquetschen des Waschwassers erforderlich sind. Die Beaufschlagung mit den Behandlungsmedien erfolgt vorzugsweise auf beiden Seiten der Materialbahn und/oder in Bewegungsrichtung hintereinander. Es wäre aber auch denkbar, die Materialbahn nur auf einer Seite zu beaufschlagen, bzw. verschiedene Behandlungsmedien auf verschiedenen Seiten, bzw. an verschiedenen Stellen des Schachtes einzuführen.The narrow shaft practically forms a nozzle in which the treatment medium can act intensively and for a sufficiently long period of time on the material web. Maintaining an overpressure relative to atmospheric pressure causes a turbulent flow of relatively high speed in one direction of the shaft. The use of a vaporous or gaseous treatment medium has the advantage that the use of liquid treatment medium can be kept as small as possible. The substances detached from the material web by the steam accumulate in high concentration in the liquid component, while the steam can be easily sucked off and fed in again after a preparation process. The material web can also be supplied with a liquid treatment medium from a separate nozzle arrangement. It is also conceivable to use saturated water vapor and / or air and washing liquor, each medium being introduced into the chamber from a separate nozzle arrangement or applied to the material web. A washing liquor applied to the material web can subsequently be discharged again, for example, or partially evaporated through a gaseous medium, so that no special squeeze rollers are required to squeeze out the washing water. The treatment media are preferably applied on both sides of the material web and / or one behind the other in the direction of movement. However, it would also be conceivable to apply the material web only on one side, or to introduce different treatment media on different sides or at different points in the shaft.

Besonders vorteilhaft wird ein aufsteigendes und ein absteigendes Trum der Materialbahn durch je einen separaten Schacht geführt, wobei die Beaufschlagung mit Behandlungsmedium bei beiden Schächten am oberen Ende erfolgt und wobei die beiden Schächte am oberen Ende miteinander kommunizieren und die Behandlungsmedien am unteren Ende der beiden Schächte abgeführt werden. Die Materialbahn kann aber auch mehrere, etwa vertikale Schächte durchlaufen, die nebeneinander oder übereinander angeordnet sind und bei denen jeweils am oberen Ende eine Beaufschlagung mit Behandlungsmedium erfolgt und bei denen am unteren Ende das Behandlungsmedium abgeführt wird.A rising and a descending run of the material web is particularly advantageously passed through a separate shaft, the treatment medium being applied to both shafts at the upper end and the two shafts communicating with one another at the upper end and the treatment medium being discharged at the lower end of the two shafts become. However, the material web can also pass through several, for example vertical, shafts which are arranged next to one another or one above the other and in which treatment medium is applied at the upper end and in which the treatment medium is discharged at the lower end.

Am unteren Ende jedes Kanals kann die flüssige Komponente der Behandlungsmedien in einer Wanne aufgefangen werden, die auch als Tauchbad ausgebildet sein kann. Die Flüssigkeit könnte aber auch direkt aus dem Schacht abgeführt werden. Besonders vorteilhaft wird die an einem Schacht aufgefangene Flüssigkeit im Gegenstrom der Düsenanordnung eines vorgelagerten Schachtes zugeführt. Dieses Gegenstrom-Prinzip findet vor allem beim Waschen Anwendung, wobei mit zunehmenden Reinigungsstufen immer reineres Waschwasser aufgetragen wird. Das flüssige Behandlungsmedium der letzten Behandlungszone kann dabei Frischwasser sein.At the bottom of each channel, the liquid component of the Treatment media are collected in a tub, which can also be designed as an immersion bath. The liquid could also be removed directly from the shaft. The liquid collected on a shaft is particularly advantageously fed in countercurrent to the nozzle arrangement of an upstream shaft. This countercurrent principle is mainly used for washing, with increasingly pure washing water being applied with increasing cleaning stages. The liquid treatment medium of the last treatment zone can be fresh water.

Vorzugsweise lassen sich der Druck und/oder die Menge der zugeführten Behandlungsmedien für jedes Medium separat steuern. So können je nach der Beschaffenheit der Materialbahn unterschiedliche Bedingungen in den Behandlungszonen erreicht werden.The pressure and / or the amount of the treatment media supplied can preferably be controlled separately for each medium. Depending on the nature of the material web, different conditions can be achieved in the treatment zones.

Das Verfahren lässt sich besonders einfach und vorteilhaft mit einer Vorrichtung durchführen, welche die Merkmale von Anspruch 9 aufweist. Bei getrennten Düsenanordnungen mit separaten Zuleitungen kann der Schacht mit beliebigen flüssigen, gasförmigen oder unter Umständen sogar festen Behandlungsmedien in der Form eines Granulats beschickt werden. So wäre es z.B. denkbar, die Materialbahn mit einem rieselfähigen Schleifsand zu beaufschlagen, um damit eine bestimmte Oberflächenwirkung zu erzielen. Eine nachfolgende Luftdüse könnte noch anhaftende Sandpartikel wiederum wegblasen.The method can be carried out particularly simply and advantageously with a device which has the features of claim 9. In the case of separate nozzle arrangements with separate feed lines, the shaft can be loaded with any liquid, gaseous or, under certain circumstances, even solid treatment media in the form of a granulate. So it would be e.g. it is conceivable to apply a free-flowing sand to the material web in order to achieve a certain surface effect. A subsequent air nozzle could in turn blow away any sand particles still adhering to it.

Um die Behandlungszone möglichst flexibel zu gestalten, ist es vorteilhaft, wenn wenigstens drei Düsenanordnungen in der Form von separaten Kollektorröhren zu einer Einheit miteinander verbunden sind. Auf diese Weise können mehrere verschiedene Behandlungsmedien hintereinander eingesetzt werden, wobei es bei Bedarf aber auch möglich ist, einzelne der Kollektorrohre abzuschalten. Dies ermöglicht es, dass die Vorrichtung ohne aufwendige Umbauarbeiten für ganz verschiedene Zwecke eingesetzt werden kann. Vorzugsweise sind auf beiden Seiten der Materialbahn sich gegenüberliegende Düsenanordnungen vorhanden. Eine Durchbiegung der Materialbahn infolge der Druckbeaufschlagung kann damit verhindert werden, da sich der Druck der gegeneinander strömenden Medien gegenseitig aufhebt.In order to make the treatment zone as flexible as possible, it is advantageous if at least three nozzle arrangements in the form of separate collector tubes are connected to one another. In this way, several different treatment media can be used in succession, but it is also possible, if necessary, to switch off individual collector tubes. This makes it possible for the device to be used for very different purposes without expensive conversion work Purposes can be used. Opposing nozzle arrangements are preferably present on both sides of the material web. A deflection of the material web as a result of the pressurization can thus be prevented since the pressure of the media flowing against one another cancel each other out.

Die Distanz zwischen der Materialbahn und der Düsenanordnung ist vorzugsweise einstellbar. Damit kann erreicht werden, dass die Materialbahn in der Behandlungszone einen schmalen Schlitz durchläuft, ohne dass Reibungsstellen vorhanden sind. Die als Düsenanordnung verwendeten Kollektorrohre haben vorzugsweise einen rechteckigen Querschnitt, da sich diese Rohre besonders vorteilhaft zu einer Einheit verbinden lassen. Die miteinander verbundenen Kollektorrohre bilden vorzugsweise einen gasdichten Wandabschnitt der Behandlungszone, der demontierbar und/oder verschiebbar ist. Diese Bauweise hat gegenüber den bekannten Behandlungszonen den Vorteil, dass um die Düsenanordnungen herum nicht noch eine gasdichte Kammer aufgebaut werden muss. Die Anschlüsse für die Kollektorrohre sind unmittelbar von der Aussenseite her gut zugänglich, so dass keine zusätzlichen Durchführungen oder Abdichtungen erforderlich sind.The distance between the material web and the nozzle arrangement is preferably adjustable. In this way it can be achieved that the material web runs through a narrow slot in the treatment zone without any friction points. The collector tubes used as a nozzle arrangement preferably have a rectangular cross section, since these tubes can be connected to a unit in a particularly advantageous manner. The interconnected collector tubes preferably form a gas-tight wall section of the treatment zone, which can be removed and / or moved. This design has the advantage over the known treatment zones that a gas-tight chamber does not have to be built around the nozzle arrangements. The connections for the collector tubes are directly accessible from the outside, so that no additional bushings or seals are required.

Die Kollektorrohre bzw. die Behandlungszonen können an jeder beliebigen Relativlage der Materialbahn angeordnet sein. Aus Platzgründen sind vorzugsweise mehrere vertikale Schächte nebeneinander angeordnet, wobei unterhalb von jedem Schacht eine separate Kammer vorhanden ist. Zur Verwirklichung des eingangs erwähnten Gegenstromprinzips kann wenigstens eine Kammer an die Saugleitung einer Pumpe angeschlossen sein, deren Druckleitung zu einem Kollektorrohr führt, das einem vorgelagerten Schacht zugeordnet ist.The collector tubes or the treatment zones can be arranged at any relative position of the material web. For reasons of space, several vertical shafts are preferably arranged next to one another, a separate chamber being provided below each shaft. In order to implement the countercurrent principle mentioned at the outset, at least one chamber can be connected to the suction line of a pump, the pressure line of which leads to a collector tube which is assigned to an upstream shaft.

Die Kollektorrohre können Düsen aufweisen, deren Strömungsachsen bzw. -ebenen zur Durchlaufebene der Materialbahn geneigt sind. Die Achsen bzw. Ebenen können aber auch im rechten Winkel zur Materialbahn angeordnet sein. Schliesslich ist es auch denkbar, dass sich die Achsen bzw. Ebenen benachbarter Kollektorrohre schneiden, wobei der Schnittpunkt vor, auf oder hinter der Materialbahn liegen kann.The collector tubes can have nozzles whose flow axes or planes to the passage plane of the material web are inclined. The axes or planes can also be arranged at right angles to the material web. Finally, it is also conceivable that the axes or planes of adjacent collector tubes intersect, the point of intersection being in front of, on or behind the material web.

Da der Innendruck im Schacht über dem Atmosphärendruck liegt, können bei den relativ grossen Wandflächen hohe mechanische Beanspruchungen auftreten. Bei der sehr geringen Spaltbreite des Schachtes ist es auch wichtig, dass die Seitenwände des Schachtes auch unter thermischer und mechanischer Beanspruchung absolut planparallel zueinander verlaufen, um Reibungsstellen mit der Textilbahn zu vermeiden. Dieses Problem kann besonders einfach dadurch gelöst werden, dass jeder Schacht im Querschnitt hohle Seitenwände aufweist, und dass durch die Seitenwände ein Heizmedium leitbar ist. Die Seitenwände können dabei durch horizontal aufeinander gestapelte Hohlkasten-Profile gebildet werden, deren Enden stirnseitig verschlossen sind und die untereinander durch Oeffnungen verbunden sind. Dadurch wird eine besonders stabile und verwindungssteife Schachtkonstruktion erreicht. Die Beheizung der Hohlwände bewirkt, dass die Aussenseite der Wandkonstruktion etwa die gleiche Temperatur aufweist wie die der Textilbahn zugewandte Innenseite. Temperaturbedingte Lageveränderungen werden dadurch ausgeschlossen. Ausserdem bewirkt die Beheizung der Seitenwände, dass das dampfförmige Behandlungsmedium nicht zu schnell auskondensiert.Since the internal pressure in the shaft is above atmospheric pressure, high mechanical loads can occur on the relatively large wall areas. Given the very small gap width of the shaft, it is also important that the side walls of the shaft run absolutely plane-parallel to one another, even under thermal and mechanical stress, in order to avoid friction points with the textile web. This problem can be solved in a particularly simple manner in that each shaft has hollow side walls in cross section and in that a heating medium can be conducted through the side walls. The side walls can be formed by horizontally stacked hollow box profiles, the ends of which are closed at the end and which are connected to one another by openings. This creates a particularly stable and torsion-resistant shaft construction. The heating of the cavity walls causes the outside of the wall construction to have approximately the same temperature as the inside facing the textile web. This excludes temperature-related changes in position. In addition, the heating of the side walls ensures that the vaporous treatment medium does not condense out too quickly.

Die als Düsenanordnungen verwendeten Kollektorrohre können durch die gleichen Hohlkasten-Profile gebildet werden wie die Seitenwände. Die Seitenwände bilden so eine kompakte Einheit, in der die Düsenanordnungen integriert sind. Die Spaltbreite jedes Schachtes ist vorzugsweise durch eine Justiervorrichtung einstellbar, so dass im Einzelfall die optimale Spaltbreite gewählt werden kann.The collector tubes used as nozzle arrangements can be formed by the same hollow box profiles as the side walls. The side walls thus form a compact unit in which the nozzle arrangements are integrated. The gap width of each shaft is preferably adjustable by means of an adjusting device, so that the optimal gap width can be selected in individual cases.

Weitere Einzelmerkmale und Vorteile der Erfindung ergeben sich aus den nachfolgend beschriebenen und in den Zeichnungen dargestellten Ausführungsbeispielen. Es zeigen:

Figur 1
eine Hochleistungswaschmaschine mit den Merkmalen der Erfindung im Querschnitt,
Figur 2
eine vergrösserte Darstellung einer Behandlungszone aus Figur 1,
Figur 3
einen Stufenschnitt durch die Ebene I-I gemäss Figur 2,
Figur 4
ein Installationsschema für die Behandlungszone gemäss Figur 2,
Figur 5
die schematische Darstellung der Beaufschlagung mit den Behandlungsmedien,
Figur 6
ein erweitertes Ausführungsbeispiel einer Waschmaschine mit Gegenstromführung,
Figur 7
ein abgewandeltes Ausführungsbeispiel mit zwei Behandlungszonen an einer aufsteigenden Materialbahn,
Figur 8a
einen Teilquerschnitt durch ein abwandeltes Ausführungsbeispiel einer Waschmaschine mit hohlen Schachtseitenwänden,
Figur 8b
die Maschine gemäss Figur 8a mit einer aufgeklappten Schachtseitenwand,
Figur 9
eine Teilansicht der Maschine gemäss Figur 8a und
Figur 10
einen Teilquerschnitt durch das stirnseitige Ende eines Schachtes bei Figur 8a
Further individual features and advantages of the invention result from the exemplary embodiments described below and shown in the drawings. Show it:
Figure 1
a high-performance washing machine with the features of the invention in cross section,
Figure 2
2 shows an enlarged illustration of a treatment zone from FIG. 1,
Figure 3
2 shows a step cut through level II according to FIG. 2,
Figure 4
an installation diagram for the treatment zone according to Figure 2,
Figure 5
the schematic representation of the exposure to the treatment media,
Figure 6
an expanded embodiment of a washing machine with counterflow,
Figure 7
a modified embodiment with two treatment zones on an ascending material web,
Figure 8a
a partial cross section through a modified embodiment of a washing machine with hollow shaft side walls,
Figure 8b
the machine according to Figure 8a with an open shaft side wall,
Figure 9
a partial view of the machine according to Figure 8a and
Figure 10
a partial cross section through the front end of a shaft in Figure 8a

Figur 1 zeigt ein Hochleistungswaschabteil 1, das nach dem Prinzip einer sogenannten Rollenkufe aufgebaut ist und das eine Oberwalze 2 und zwei Unterwalzen 3a und 3b aufweist. Letztere sind in einem Trog 4 gelagert, der je nach Verwendungszweck des Waschabteils mit oder ohne Unterteilung 5 ausgebildet sein kann, oder der mit oder ohne Gegenstromführung gespeist wird. Der Trog 4 besitzt z.B. einen Ablauf 6 zum Entleeren der Kammer 7 und einen Pumpenanschluss 8 für die Zufuhr oder Abfuhr von Waschflotte. Sofern eine Gegenstromführung vorgesehen ist, wird die Waschflotte durch den Gegenstromeinlauf 9 zugeführt und durch den Gegenstromauslauf 10 wieder abgeführt.Figure 1 shows a high-performance washing compartment 1, which is constructed on the principle of a so-called roller skid and which has an upper roller 2 and two lower rollers 3a and 3b. The latter are stored in a trough 4, which can be designed with or without subdivision 5, depending on the intended use of the washing compartment, or which is fed with or without countercurrent flow. The trough 4 has e.g. an outlet 6 for emptying the chamber 7 and a pump connection 8 for the supply or discharge of washing liquor. If a counterflow is provided, the wash liquor is fed through the counterflow inlet 9 and discharged through the counterflow outlet 10.

Der Trog 4 ist durch Abdeckplatten 11 bzw. durch die Deckel 12 gegen Dampfaustritt weitgehend abgedichtet, wobei die Gewebebahn 15 über eine Eintrittsöffnung 13 in den Trog 4 eintaucht und über eine Austrittsöffnung 14 aus dem Trog abgezogen wird. Bei einer Kombination mehrerer Hochleistungswaschabteile 1 ist selbstverständlich jeweils die Gewebeaustrittsöffnung 14 schachtförmig mit der Gewebeeintrittsöffnung 13 des nachfolgenden Waschabteils verbunden, so dass Dampfverluste weitgehend vermieden werden. (Siehe z.B. Fig. 6).The trough 4 is largely sealed against the escape of steam by cover plates 11 or by the cover 12, the fabric web 15 being immersed in the trough 4 via an inlet opening 13 and being withdrawn from the trough via an outlet opening 14. In the case of a combination of several high-performance washing compartments 1, the fabric outlet opening 14 is of course connected in a shaft-like manner with the fabric inlet opening 13 of the subsequent washing compartment, so that steam losses are largely avoided. (See e.g. Fig. 6).

Ueber dem Trog 4 sind die beiden Schächte 16 und 17 angeordnet, so dass das aufsteigende und das absteigende Trum der über die Oberwalze 2 geführten Gewebebahn jeweils in einen separaten Schacht läuft. An den Schächten 16 und 17 sind aussen Seitendeckel 18 vorgesehen, welche das Einziehen der Gewebebahn 15 erleichtern und welche ein Beobachten der Materialbahn erlauben. Wie dargestellt, lenkt die im Oberteil 19 drehbar gelagerte Oberwalze 2 die Gewebebahn 15 etwa um 180° um. Je nach Anordnung der beiden Unterwalzen 3a und 3b wäre aber auch ein anderer Umlenkwinkel denkbar, wobei die beiden Schächte 16 und 17 entsprechend geneigt sein müssten. Wie die Schächte 16 und 17 ist auch das Oberteil 19 mit einem Deckel 20 dichtend verschlossen, so dass die Gewebebahn von allen Seiten gut zugänglich ist. Das Oberteil 19 bildet eine Kammer, welche die beiden Schächte 16 und 17 druckdicht miteinander verbindet.Above the trough 4, the two shafts 16 and 17 are arranged, so that the ascending and descending strands of the fabric web guided over the top roller 2 each run into a separate shaft. On the shafts 16 and 17, outside side covers 18 are provided which facilitate the pulling in of the fabric web 15 and which allow the material web to be observed. As shown, the upper roller 2 rotatably supported in the upper part 19 deflects the fabric web 15 by approximately 180 °. Depending on the arrangement of the two lower rollers 3a and 3b however, a different deflection angle would also be conceivable, the two shafts 16 and 17 having to be inclined accordingly. Like the shafts 16 and 17, the upper part 19 is sealed with a cover 20, so that the fabric web is easily accessible from all sides. The upper part 19 forms a chamber which connects the two shafts 16 and 17 to one another in a pressure-tight manner.

Am oberen Ende der beiden Schächte 16 und 17 sind die aus einzelnen Kollektorrohren bestehenden Kollektoren 21a bis 21d angeordnet, welche in den Schacht integriert sind. Einzelheiten dieses Abschnitts sind aus den Figuren 2 und 3 ersichtlich. Jeder Kollektor 21a bis 21d besteht aus drei im Querschnitt rechteckigen Kollektorrohren 33, 34 und 35. Die Rohre könnten evtl. auch genau quadratisch ausgebildet sein. Die Rohre sind gasdicht miteinander verschweisst, wobei am obersten Rohr 33 und am untersten Rohr 35 je eine Befestigungsleiste 27 bzw. 28 angeschweisst ist. Die einzelnen Kollektoren sind so unmittelbar als gasdichter Wandabschnitt des Schachtes ausgebildet. Die Kollektoren bilden ausserdem jeweils eine Verbindungswand zwischen den Schächten 16 bzw. 17 und dem Oberteil 19. Um auf einfachste Weise eine seitliche Verschiebbarkeit der Kollektoren zu ermöglichen, sind Zwischenstücke 22 und 23 eingebaut.At the upper end of the two shafts 16 and 17, the collectors 21a to 21d, which consist of individual collector tubes and are integrated into the shaft, are arranged. Details of this section can be seen from FIGS. 2 and 3. Each collector 21a to 21d consists of three collector tubes 33, 34 and 35 which are rectangular in cross section. The tubes could possibly also be of exactly square design. The tubes are welded to one another in a gas-tight manner, a fastening strip 27 or 28 being welded to the uppermost tube 33 and the lowest tube 35. The individual collectors are thus designed directly as a gas-tight wall section of the shaft. The collectors also each form a connecting wall between the shafts 16 and 17 and the upper part 19. In order to enable the collectors to be moved laterally in the simplest way, intermediate pieces 22 and 23 are installed.

Diese Zwischenstücke sind flanschartig ausgebildet und mit den Schächten 16, 17 bzw. mit dem Oberteil 19 fest verschraubt. An dem den Kollektoren zugewandten Flanschabschnitt sind Langlöcher 31 bzw. 32 angeordnet, durch welche die Befestigungsschrauben 29 bzw. 30 in die Befestigungsleisten 27 bzw. 28 geschraubt werden können. Ersichtlicherweise lassen sich so die Kollektoren entsprechend der Länge der Löcher 31, 32 quer zur Bewegungsrichtung der in Pfeilrichtung 26 verlaufenden Materialbahn verschieben, so dass die Distanz 25 zwischen zwei benachbarten Kollektoren 21a und 21b eingestellt werden kann. In bestimmten Fällen wäre es natürlich auch denkbar, die Kollektoren fest einzubauen.These intermediate pieces are flange-like and are screwed to the shafts 16, 17 or to the upper part 19. Elongated holes 31 and 32 are arranged on the flange section facing the collectors, through which the fastening screws 29 and 30 can be screwed into the fastening strips 27 and 28, respectively. As can be seen, the collectors can thus be moved transversely to the direction of movement of the material web running in the direction of the arrow 26 according to the length of the holes 31, 32, so that the distance 25 between two adjacent collectors 21a and 21b can be set. In certain cases it would be natural it is also conceivable to permanently install the collectors.

Für die seitliche Abdichtung zwischen den beiden Kollektoren ist je eine Seitenwand 56a bzw. 56b vorgesehen, welche dichtend gegen die Kollektoren gepresst wird. Diese Seitenwand könnte dabei evtl. auch die einzelnen Kollektorrohre unmittelbar seitlich abdichten. Anstelle einer festen Seitenwand könnten die Kollektoren seitlich auch mit einem Faltenbalg oder mit einer anderen flexiblen Wand z.B. aus Kautschuk oder dergleichen abgedichtet sein. Jedes Kollektorrohr 33 bis 35 ist mit einem separaten Anschlussstutzen 36, 37, und 38 versehen, wobei jeder Anschlussstutzen etwa in der Mitte des Kollektorrohrs angeordnet ist. Dadurch wird eine gleichförmige Verteilung über die gesamte Breite gewährleistet. Unter Umständen könnten aber auch mehrere Anschlussstutzen über die ganze Länge eines Kollektorrohrs verteilt sein.For the lateral sealing between the two collectors, a side wall 56a or 56b is provided, which is pressed sealingly against the collectors. This side wall could possibly also seal the individual collector tubes directly to the side. Instead of a fixed side wall, the collectors could also have a bellows or another flexible wall, e.g. be sealed from rubber or the like. Each collector pipe 33 to 35 is provided with a separate connection piece 36, 37 and 38, each connection piece being arranged approximately in the middle of the collector pipe. This ensures a uniform distribution across the entire width. Under certain circumstances, however, several connecting pieces could also be distributed over the entire length of a collector tube.

Um eine Deformation der Rohre unter der Druckeinwirkung des Behandlungsmediums zu vermeiden, können in bestimmten Abständen Stützbolzen 42 in die Rohre eingeschweisst sein.In order to avoid deformation of the pipes under the pressure of the treatment medium, support bolts 42 can be welded into the pipes at certain intervals.

Die gegen die Gewebebahn 15 gerichteten Düsen können ganz unterschiedlich ausgebildet sein. So sind z.B. die Rohre 33 und 34 mit einer Vielzahl von Austrittsöffnungen 39 und 40 versehen, durch welche das eingespeiste Behandlungsmedium unter einem Winkel 41 schräg auf die Gewebebahn 15 auftreffen kann. Im Kollektorrohr 35 sind anstelle der kleinen Austrittsöffnungen grössere Austrittsöffnungen 43 angeordnet, welche im rechten Winkel gegen die Gewebebahn 15 gerichtet sind. Diese könnten aber evtl. ebenfalls relativ zur Gewebebahn geneigt sein. Anstelle von Einzelöffnungen könnte sich auch eine Schlitzdüse über die gesamte Länge eines Kollektorrohrs hinziehen.The nozzles directed against the fabric web 15 can be designed in very different ways. For example, the tubes 33 and 34 are provided with a multiplicity of outlet openings 39 and 40, through which the treatment medium fed in can strike the fabric web 15 obliquely at an angle 41. Instead of the small outlet openings, larger outlet openings 43 are arranged in the collector tube 35 and are directed at right angles against the fabric web 15. However, these could possibly also be inclined relative to the fabric web. Instead of individual openings, a slot nozzle could extend over the entire length of a collector tube.

Im dargestellten Ausführungsbeispiel gemäss Figur 2 sind die Düsen der Kollektorrohre 33, 34 und 35 auf einer parallel zur Gewebebahn 15 verlaufenden Ebene angeordnet. Es wäre selbstverständlich auch denkbar, dass jedes einzelne Kollektorrohr eines Kollektors separat verstellbar ist, so dass die Düsen in unterschiedlichen Abständen zur Gewebebahn angeordnet werden können. Es wäre aber auch denkbar, dass die einzelnen Kollektorrohre derart versetzt zueinander miteinander verbunden sind, dass die Düsen der einzelnen Rohre unterschiedliche Abstände zur Gewebebahn aufweisen. Schliesslich wäre es sogar denkbar, dass der Düsenquerschnitt mit einem Schieber oder dergleichen von aussen her verändert werden kann oder dass auf die gleiche Weise einzelne Düsenöffnungen ganz abgedeckt werden können.In the exemplary embodiment shown in FIG. 2, the nozzles of the collector tubes 33, 34 and 35 are parallel to one another Fabric web 15 arranged level. It would of course also be conceivable that each individual collector tube of a collector can be adjusted separately, so that the nozzles can be arranged at different distances from the fabric web. However, it would also be conceivable for the individual collector tubes to be connected to one another in such a way that the nozzles of the individual tubes are at different distances from the fabric web. Finally, it would even be conceivable that the nozzle cross section can be changed from the outside with a slide or the like, or that individual nozzle openings can be completely covered in the same way.

Durch die Anschlussstutzen 36 wird Dampf 44 von bestimmtem Druck und bestimmter Temperatur, z.B. Sattdampf, eingespeist und durch die Austrittsöffnungen 39 unter dem Winkel 41 auf die Gewebebahn 15 geblasen. Desgleichen wird durch die Anschlussstutzen 37 Luft 45 von bestimmter Temperatur und bestimmtem Druck eingespeist und durch die Austrittsöffnungen 40 unter einem Winkel 41 auf die Gewebebahn 15 geblasen. Schliesslich wird durch die Anschlussstutzen 38 Waschwasser 46 von bestimmter Qualität mit einer bestimmten Temperatur und mit einem bestimmten Druck eingespeist und durch die Austrittsöffnungen 43 im rechten Winkel auf die Gewebebahn 15 gesprüht. Das Waschwasser 46 kann dabei mit zusätzlichen Chemikalien vermischt sein, welche den Waschprozess unterstützen.Steam 44 of a certain pressure and temperature, e.g. Saturated steam, fed in and blown through the outlet openings 39 at an angle 41 onto the fabric web 15. Likewise, air 45 of a certain temperature and a certain pressure is fed in through the connecting pieces 37 and blown onto the fabric web 15 through the outlet openings 40 at an angle 41. Finally, washing water 46 of a certain quality is fed in through the connecting pieces 38 at a certain temperature and at a certain pressure and sprayed through the outlet openings 43 onto the fabric web 15 at a right angle. The wash water 46 can be mixed with additional chemicals that support the washing process.

Die Durchmesser der Austrittsöffnungen 39 und 40 liegen im Bereich von ca. 1 mm und der Durchmesser der Austrittsöffnungen 43 im Bereich von ca. 4 mm. Der Abstand zwischen den Schachtwänden der Schächte 16 und 17 ist in der Regel etwa gleich wie der Abstand 25 zwischen den Kollektoren 21a und 21b bzw. 21c und 21d, also ca. 4 mm, wobei wie bereits obenerwähnt zwischen den einzelnen Kollektorrohren unterschiedliche Abstände möglich sind. Der Abstand könnte aber auch grösser sein und bis zu 40 mm betragen. Damit die Gewebebahn 15 durch die sehr nahe liegenden Kollektorrohre 33 bis 35 nicht beschädigt wird, sind diese an den Ecken mit relativ grossen Rundungsradien versehen. Diese erlauben zudem ein versenktes Zusammenschweissen, wobei keine vorstehenden Schweissnähte gebildet werden.The diameters of the outlet openings 39 and 40 are in the range of approximately 1 mm and the diameter of the outlet openings 43 in the range of approximately 4 mm. The distance between the shaft walls of the shafts 16 and 17 is generally approximately the same as the distance 25 between the collectors 21a and 21b or 21c and 21d, that is to say approximately 4 mm, wherein, as already mentioned, different distances are possible between the individual collector tubes . The distance could also be be larger and be up to 40 mm. So that the fabric web 15 is not damaged by the very close collector tubes 33 to 35, these are provided with relatively large rounding radii at the corners. These also allow a recessed welding, whereby no protruding weld seams are formed.

Der eingespeiste Dampf kann eine Temperatur von beispielsweise 105 - 110 Grad Celsius aufweisen. Dabei kann sich im Schacht, bzw. im Oberteil 19 ein Druck von ca. 0,8 bar aufbauen. Das dampfförmige Medium strömt unter relativ hoher Geschwindigkeit unter einer turbulenten Strömung im Schacht nach unten, wobei es sich mit dem Waschwasser teilweise vermischt und dieses verdampft. Die nach unten abströmenden Behandlungsmedien weisen einen hohen Beladungsgrad auf, wobei die im Trog 4 aufgefangene Flotte eine hohe Konzentration hat. Dampf und/oder Luft werden im unteren Ende des Schachtes abgesaugt und können in einem internen Kreislauf wiederverwendet werden. Das Einblasen von Luft kann z.B. dazu dienen, bestimmte chemische Reaktionen, wie z.B. eine Oxidation einzelner Stoffe, auszulösen. Pressluft von hoher Temperatur, die relativ einfach zu erzeugen ist, könnte aber auch nur dazu dienen, um den Dampfverbrauch zu reduzieren.The steam that is fed in can have a temperature of, for example, 105-110 degrees Celsius. A pressure of approximately 0.8 bar can build up in the shaft or in the upper part 19. The vaporous medium flows downward at a relatively high speed under a turbulent flow in the shaft, partially mixing with the wash water and evaporating it. The treatment media flowing downward have a high degree of loading, the liquor collected in the trough 4 having a high concentration. Steam and / or air are drawn off in the lower end of the shaft and can be reused in an internal circuit. The blowing in of air can e.g. serve to carry out certain chemical reactions, e.g. oxidation of individual substances. High temperature compressed air, which is relatively easy to generate, could also only serve to reduce steam consumption.

In Figur 4 ist die Leitungsführung zu den Kollektoren 21a bis 21d schematisch dargestellt. Für jedes Medium Dampf D 44, Luft L 45 und Wasser W1 und W2 46 in zwei verschiedenen Qualitäten ist je ein separater Mengenmesser 47 vorgesehen, dem ein Handventil 48 für eine manuelle Mengensteuerung folgt. Nach den Handventilen 48 teilen sich die Leitungen auf in die Zuführungen zu den einzelnen Kollektorrohren 33 bis 35, wobei jedes Kollektorrohr ebenfalls noch mit einem Handventil 49 versehen sein kann. Aus Gründen der besseren Uebersicht sind die Zuleitungen zu den innen liegenden Kollektoren 21b und 21c nicht dargestellt.In Figure 4, the wiring to the collectors 21a to 21d is shown schematically. For each medium steam D 44, air L 45 and water W1 and W2 46 in two different qualities, a separate flow meter 47 is provided, which is followed by a manual valve 48 for manual flow control. After the manual valves 48, the lines divide into the feeds to the individual collector tubes 33 to 35, wherein each collector tube can also be provided with a manual valve 49. For the sake of a better overview, the feed lines to the internal collectors 21b and 21c are not shown.

Mit dieser Anordnung ist es nun möglich, die einzelnen Behandlungsmedien mengenmässig zu dosieren oder ggf. auch ganz zu unterbrechen. Mit Hilfe entsprechender Druckregelventile könnte insbesondere bei den gasförmigen Behandlungsmedien auch der jeweilige Druck eingestellt werden. Für einen rationellen Betrieb mit optimaler Behandlungswirkung wird die Zufuhr der einzelnen Behandlungsmedien vorzugsweise automatisch geregelt, wobei die gewünschten Werte an einem Soll wertgeber eingestellt werden können. Auch die Beimischung bestimmter Zusätze zur Unterstützung des Waschprozesses könnte in die Regelung mit einbezogen werden.With this arrangement it is now possible to dose the individual treatment media in terms of quantity or, if necessary, to interrupt them entirely. With the help of appropriate pressure control valves, the respective pressure could also be set, in particular in the case of the gaseous treatment media. For efficient operation with an optimal treatment effect, the supply of the individual treatment media is preferably regulated automatically, the desired values being able to be set on a setpoint generator. The addition of certain additives to support the washing process could also be included in the regulation.

Der im Ausführungsbeispiel dargestellten Anordnung liegt der Gedanke zugrunde, durch die Anwendung von Luft und/oder Dampf den Wasserverbrauch stark zu reduzieren und zusätzlich den Reinigungseffekt für das Gewebe zu verbessern und zu beschleunigen. Die intensive Anströmung der Gewebebahn 15 führt zu einer schnellen Ablösung der Verunreinigungen, wobei die Wirkung der Düsen an den Kollektorrohren durch die hohe Gewebebahngeschwindigkeit noch unterstützt wird. Durch die relativ geringe zugeführte Wassermenge fallen die ausgewaschenen Bestandteile wie z.B. Stärkeschlichte oder Farbstoffe in hoher Konzentration an, was eine Reinigung des Abwassers erleichtert. Auch eine Verfärbung der Textilbahn durch verschmutztes Waschwasser muss nicht befürchtet werden.The arrangement shown in the exemplary embodiment is based on the idea of greatly reducing water consumption by the use of air and / or steam and additionally improving and accelerating the cleaning effect for the tissue. The intensive flow against the fabric web 15 leads to a rapid detachment of the contaminants, the effect of the nozzles on the collector tubes being further supported by the high fabric web speed. Due to the relatively small amount of water supplied, the washed-out components, e.g. Starch size or dyes in high concentration, which facilitates cleaning of the wastewater. There is also no need to fear discoloration of the textile web due to dirty washing water.

In Abbildung 5 sind die Strömungsverhältnisse an einer Waschstufe nochmals prinzipiell dargestellt. Die gleichen oder ähnliche Verhältnisse könnten aber auch bei anderen Behandlungsprozessen wie z.B. beim Entschlichten, beim Imprägnieren oder bei der Drucknachbehandlung vorhanden sein. Das zur Oberwalze 2 aufwärts führende Trum 50 der Gewebebahn 15 wird zuerst mit einer geringen Menge Wasser 46 besprüht. Der Wasserstrahl wird anschliessend sofort mit einem intensiven Strahl von Luft 45 bzw. Dampf 44 überlagert, so dass eine Vermischung mit dem Wasser 46 stattfindet. Aehnlich liegen die Verhältnisse beim abwärts laufenden Trum 51, wobei die Auftragung der einzelnen Behandlungsmedien in umgekehrter Reihenfolge stattfindet. Die zusätzliche Zufuhr von Luft 45 zum Dampf 44 hat den Vorteil, dass der sehr energiebeanspruchende Dampf 44 auf ein Minimum reduziert werden kann. In bestimmten Fällen ist es sogar denkbar, dass neben dem flüssigen Behandlungsmedium ausschliesslich mit Luft gearbeitet wird, die ggf. auf eine bestimmte Temperatur erhitzt wird. Selbstverständlich könnte die Reihenfolge am abwärts laufenden Trum 51 auch so geändert werden, dass in Vorschubrichtung wiederum zuerst Wasser 46, dann Luft 45 und dann Dampf 44 aufgetragen wird.Figure 5 shows the flow conditions at a washing stage in principle again. The same or similar conditions could also exist in other treatment processes such as desizing, impregnation or post-treatment. The strand 50 of the fabric web 15 leading upwards to the upper roller 2 is first sprayed with a small amount of water 46. The water jet is then immediately overlaid with an intense jet of air 45 or steam 44, so that mixing with the water 46 takes place. Similar to lying the conditions for the downward run 51, the application of the individual treatment media taking place in reverse order. The additional supply of air 45 to the steam 44 has the advantage that the very energy-intensive steam 44 can be reduced to a minimum. In certain cases it is even conceivable that in addition to the liquid treatment medium, only air is used, which may be heated to a certain temperature. Of course, the sequence on the downward run 51 could also be changed such that water 46, then air 45 and then steam 44 are applied in the feed direction.

In Figur 6 ist ein alternatives Ausführungsbeispiel der Erfindung mit mehreren Waschabteilen dargestellt. Die einzelnen Waschabteile können etwa gleich ausgebildet sein wie in Figur 1 dargestellt. Die Verbindung erfolgt mit Hilfe einer Zwischenkammer 54, welche zwei Waschabteile dampfdicht miteinander verbindet. In der Zwischenkammer 54 ist ebenfalls eine Oberwalze angeordnet. Die Zufuhr von Luft und Dampf erfolgt etwa gemäss dem Schema in Figur 4 unmittelbar zu den einzelnen Behandlungszonen. Dagegen erfolgt die Zufuhr des Waschwassers vorzugsweise im Gegenstrom. Dabei wird z.B. der letzten Kammer 7d des zweiten Abteils mit Hilfe der Pumpe 52 Flüssigkeit entnommen und über die Gegenstromführung 53 in den Kollektor 21a des zweiten Abteils 1b eingespeist. Von dort fliesst die Waschflüssigkeit durch den Schacht in die dem Kollektor 21a zugeordnete Kammer 7c des zweiten Abteils 1b und wird über den Pumpenanschluss 8 mit Hilfe einer Pumpe wiederum abgesaugt und dem Kollektor 21d des ersten Abteils la zugeführt. Aus der Kammer 7d des ersten Abteils la wird die Flüssigkeit wiederum abgesaugt und dem Kollektor 21a des ersten Abteils zugeführt, bis die Flüssigkeit aus der ersten Kammer 7a über den Ablauf 6 ganz abgeführt wird. Ohne dazwischengeschaltete Pumpe könnte der Flottenspiegel über die Anschlüsse 9 und 10 zwischen den Kammern 7b und 7c ausgeglichen werden.FIG. 6 shows an alternative exemplary embodiment of the invention with several washing compartments. The individual washing compartments can be designed approximately the same as shown in Figure 1. The connection is made with the aid of an intermediate chamber 54, which connects two washing compartments in a vapor-tight manner. An upper roller is also arranged in the intermediate chamber 54. Air and steam are supplied directly to the individual treatment zones, roughly according to the diagram in FIG. 4. In contrast, the washing water is preferably fed in countercurrent. For example, liquid is taken from the last chamber 7d of the second compartment with the aid of the pump 52 and fed into the collector 21a of the second compartment 1b via the counterflow guide 53. From there, the washing liquid flows through the shaft into the chamber 7c of the second compartment 1b assigned to the collector 21a and is again sucked off via the pump connection 8 with the aid of a pump and fed to the collector 21d of the first compartment 1a. The liquid is again sucked out of the chamber 7d of the first compartment la and fed to the collector 21a of the first compartment until the liquid is completely removed from the first chamber 7a via the outlet 6. Without an interposed pump, the liquor level could be compensated via the connections 9 and 10 between the chambers 7b and 7c will.

Aus dem Ausführungsbeispiel gemäss Figur 6 ist auch ersichtlich, dass über die Frischwasserzufuhr 55 Frischwasser in den Kollektor 21d des zweiten Abteils 1b eingespeist wird. Gleichzeitig wird aber auch Frischwasser auf die Oberwalze des zweiten Abteils 1b geführt, so dass die Flotte in der Kammer 7d nur einen geringen Verunreinigungsgrad aufweist.It can also be seen from the exemplary embodiment according to FIG. 6 that fresh water is fed into the collector 21d of the second compartment 1b via the fresh water supply 55. At the same time, however, fresh water is also fed onto the top roller of the second compartment 1b, so that the liquor in the chamber 7d has only a low degree of contamination.

In Figur 7 ist schliesslich noch eine Gewebebahnführung dargestellt, bei der die Kollektoren 21 nur an einem aufsteigenden Trum angeordnet sind. Dabei führt ein erster Schacht 58 zu einer ersten Umlenkwalze 60. Von dort wird die Gewebebahn auf die tiefer liegende zweite Umlenkwalze 61 geführt und gleichzeitig in ein Zwischenbad 62 eingetaucht. Anschliessend steigt die Gewebebahn wiederum durch den zweiten Schacht 59, an dem wiederum Kollektoren angeordnet sind. Das Zwischenbad 62 ist mit einem Ablauf versehen, der z.B. als Saugleitung einer Pumpe ausgebildet sein kann.Finally, FIG. 7 shows a fabric web guide in which the collectors 21 are arranged only on an ascending run. A first shaft 58 leads to a first deflecting roller 60. From there, the fabric web is guided onto the lower second deflecting roller 61 and at the same time immersed in an intermediate bath 62. The fabric web then rises again through the second shaft 59, on which in turn collectors are arranged. The intermediate bath 62 is provided with a drain which e.g. can be designed as a suction line of a pump.

Das Ausführungsbeispiel gemäss den Figuren 8a und 9 zeigt eine Vorrichtung, die in verfahrensmässiger Hinsicht gleich arbeitet wie die Vorrichtung gemäss Figur 1, die jedoch einen anderen konstruktiven Aufbau hat. Der aufsteigende Schacht 63 und der absteigende Schacht 64 werden praktisch durchgehend durch hohle Seitenwände gebildet. In den Figuren 8a und 8b zeigt jeweils die linke Bildhälfte einen Querschnitt durch den aufsteigenden Schacht 63, während die rechte Bildhälfte eine Seitenansicht darstellt. Die inneren Seitenwände 66a und 66b sind fest miteinander verbunden und werden an beiden Stirnseiten von Säulen 71 gehalten. Dagegen können die äusseren Seitenwände 65a und 65b auf nachstehend noch genauer beschriebene Weise verstellt, bzw. aufgeklappt werden. So lässt sich die Spaltbreite jedes Schachtes optimal einstellen, und die Schächte sind für Vorbereitungs- oder Reinigungsarbeiten gut zugänglich.The exemplary embodiment according to FIGS. 8a and 9 shows a device which, from a procedural point of view, works the same as the device according to FIG. 1, but which has a different construction. The ascending shaft 63 and the descending shaft 64 are practically continuously formed by hollow side walls. In FIGS. 8a and 8b, the left half of the picture shows a cross section through the ascending shaft 63, while the right half shows a side view. The inner side walls 66a and 66b are firmly connected to one another and are held on both ends by columns 71. On the other hand, the outer side walls 65a and 65b can be adjusted or opened in the manner described in more detail below. This allows the gap width of each shaft to be optimally adjusted, and the shafts are easily accessible for preparation or cleaning work.

Die Seitenwände werden im wesentlichen durch aufeinander gestapelte Hohlkasten-Profile 68 gebildet, die stirnseitig verschlossen sind. Die drei obersten Hohlkasten-Profile 76, 77 und 78 bilden dabei die Kollektorrohre mit den gegen den Schacht gerichteten Austrittsdüsen 95. Die Anschlussmöglichkeiten und die Wirkung dieser Kollektorrohre wurden bereits vorstehend beschrieben. Zusätzlich besteht bei diesem Ausführungsbeispiel jedoch die Möglichkeit, die ganze Hohlwand zu heizen. Zu diesem Zweck ist an jeder Seitenwand ein Anschlussstutzen 74 vorgesehen, über den z.B. Wasserdampf eingespeist werden kann. Die Hohlkasten-Profile sind untereinander derart mit Oeffnungen verbunden, dass der Heizdampf mäanderförmig nach unten strömt, wie mit den Pfeilen in Figur 9 angedeutet ist. Am Austrittsstutzen 75 wird der Dampf, bzw. das Kondensat abgeleitet. Durch diese Massnahme wird in den hohlen Seitenwänden eine gleichförmige Temperatur erreicht, so dass keine unerwünschten Durchbiegungen eintreten können. Der am unteren Ende des Schachtes austretende Dampf wird über einen Dampfaustritt 84 abgeführt, während die flüssige Komponente in die Wanne 83 läuft.The side walls are essentially formed by stacked hollow box profiles 68 which are closed at the end. The three uppermost hollow box profiles 76, 77 and 78 form the collector tubes with the outlet nozzles 95 directed towards the shaft. The connection options and the effect of these collector tubes have already been described above. In addition, in this embodiment there is the possibility of heating the entire cavity wall. For this purpose, a connection piece 74 is provided on each side wall, via which e.g. Water vapor can be fed. The hollow box profiles are connected to one another with openings in such a way that the heating steam flows downward in a meandering manner, as indicated by the arrows in FIG. 9. The steam or the condensate is discharged at the outlet connection 75. This measure achieves a uniform temperature in the hollow side walls, so that no undesirable deflections can occur. The steam emerging at the lower end of the shaft is discharged via a steam outlet 84 while the liquid component runs into the tub 83.

Die beiden äusseren Seitenwände 65a und 65b sind an den Säulen 71, bzw. an einem die beiden Säulen verbindenden Querbalken auf beiden Seiten mit je einem Druckmittel-Zylinder 82 aufgehängt. Gleichzeitig sind die äusseren Seitenwände aber seitlich auch noch über Gelenkhebel 81 mit den Säulen 71 verbunden. Auf diese Weise können die Seitenwände parallelogrammartig in Pfeilrichtung a aufgeklappt werden, wie dies in Figur 8b dargestellt ist. Die Druckmittel-Zylinder 82 dienen dabei lediglich dazu, die Seitenwände festzuhalten, bzw. den Oeffnungsgrad zu bestimmen.The two outer side walls 65a and 65b are suspended on the pillars 71 or on a crossbar connecting the two pillars on both sides, each with a pressure medium cylinder 82. At the same time, however, the outer side walls are also laterally connected to the columns 71 via articulated lever 81. In this way, the side walls can be opened like a parallelogram in the direction of arrow a, as shown in FIG. 8b. The pressure medium cylinders 82 only serve to hold the side walls or to determine the degree of opening.

Die Verbindung zwischen den inneren und den äusseren Seitenwänden, bzw. der Anpressdruck wird über spezielle Spannvorrichtungen erreicht. Einzelheiten dazu sind aus Figur 10 ersichtlich. An den Säulen 71 sind in bestimmten Abständen Spannstangen 79 befestigt, die um Gelenkzapfen 86 in Pfeilrichtung b seitlich ausgeschwenkt werden können. Die Spannstangen sind mit einem Gewinde versehen, auf das ein Spannhebel oder ein Handrad aufgeschraubt ist. Während die inneren Seitenwände 66a und 66b fest zwischen den Säulen 71 angeordnet sind, weisen die äusseren Seitenwände 65a und 65b seitliche Gegenstücke 92 auf, in welche die Spannstangen 79 über einen seitlichen Schlitz 94 eingeführt werden können. An den Gegenstücken greifen die Spannhebel 80 an, so dass sich die äusseren Seitenwände gegen die inneren Seitenwände pressen lassen.The connection between the inner and outer side walls, or the contact pressure is achieved using special clamping devices. Details of this can be found in FIG. 10 evident. Tensioning rods 79 are fastened to the columns 71 at certain intervals and can be pivoted out laterally about the pivot pin 86 in the direction of the arrow b. The tension rods are provided with a thread on which a tension lever or a handwheel is screwed. While the inner side walls 66a and 66b are arranged firmly between the columns 71, the outer side walls 65a and 65b have lateral counterparts 92, into which the tension rods 79 can be inserted via a lateral slot 94. The tensioning levers 80 engage the counterparts so that the outer side walls can be pressed against the inner side walls.

Die seitliche Abdichtung des Schachtes 64 erfolgt an der Dichtfläche 87, die sich präzise bearbeiten lässt. Diese Dichtfläche wird z.B. durch eine Leiste gebildet, die seitlich an die Säule 71 angeschweisst ist. Die Säule bildet dabei praktisch eine Stirnwand für den Schacht 64. An die Dichtfläche 87 wird mit Hilfe einer Dichtungsleiste 88 eine elastische Dichtung 89 gepresst. Die Dichtungsleiste ist in regelmässigen Abständen mit einem Langloch 93 versehen, durch welches eine Spannschraube 91 in ein Seitenteil 90 eingreift. Ersichtlicherweise kann so die Dichtungsleiste 88 relativ zum Seitenteil 90 und damit relativ zur äusseren Seitenwand 65b in Pfeilrichtung c verstellt werden, womit auch die Spaltbreite des Schachtes 64 eingestellt werden kann.The shaft 64 is laterally sealed on the sealing surface 87, which can be machined precisely. This sealing surface is e.g. formed by a bar that is welded to the side of the column 71. The column practically forms an end wall for the shaft 64. An elastic seal 89 is pressed onto the sealing surface 87 with the aid of a sealing strip 88. The sealing strip is provided at regular intervals with an elongated hole 93 through which a clamping screw 91 engages in a side part 90. Obviously, the sealing strip 88 can be adjusted in the direction of the arrow c relative to the side part 90 and thus relative to the outer side wall 65b, with which the gap width of the shaft 64 can also be adjusted.

Zum Aufklappen der äusseren Seitenwand 65b, bzw. für eine Neueinstellung der Spaltbreite werden alle vorhandenen Spannhebel 80 gelöst, so dass die Spannstangen 79 seitlich ausgeschwenkt werden können, wie das in Figur 10 durch die strichpunktierten Linien angedeutet ist. Anschliessend werden die Druckmittel-Zylinder 82 betätigt. Zum Schliessen des Schachtes wird in umgekehrter Reihenfolge verfahren. Selbstverständlich wäre die Verstellbarkeit der äusseren Seitenwände auch noch mit anderen mechanischen Mitteln zu lösen.To open the outer side wall 65b or to readjust the gap width, all of the existing tensioning levers 80 are released, so that the tensioning rods 79 can be swung out to the side, as is indicated in FIG. 10 by the dash-dotted lines. The pressure medium cylinders 82 are then actuated. To close the shaft, the procedure is reversed. Of course, the adjustability of the outer side walls could also be solved with other mechanical means.

Die beiden Schächte 63 und 64 kommunizieren am oberen Ende miteinander über eine Kammer 67. Diese Kammer ist oben durch einen Deckel 69 begrenzt. In der Kammer ist eine Umlenkwalze 72 angeordnet, wobei noch Ausbreitwalzen 73 vorgesehen sein können. Die Umlenkzone kann auf beiden Seiten durch Bullaugen 70 beobachtet werden.The two shafts 63 and 64 communicate with one another at the upper end via a chamber 67. This chamber is delimited at the top by a cover 69. A deflecting roller 72 is arranged in the chamber, and spreading rollers 73 can also be provided. The deflection zone can be observed on both sides through portholes 70.

Ueber die gesamte Höhe der äusseren Seitenwände erstrecken sich Verstärkungsprofile 85. Ausserdem können die äusseren Seitenwände auf der Aussenseite noch mit einer Isolationsschicht versehen sein, um die Wärmeverluste möglichst gering zu halten.Reinforcing profiles 85 extend over the entire height of the outer side walls. In addition, the outer side walls can also be provided with an insulation layer on the outside in order to keep the heat losses as low as possible.

Die Zuleitungen, bzw. Ableitungen für die Flotte in der Wanne 83 sind hier nicht mehr genauer dargestellt. Es wird auf die Ausführungen zu den vorhergehenden Ausführungsbeispielen verwiesen.The feed lines or discharge lines for the fleet in the tub 83 are no longer shown here in more detail. Reference is made to the explanations regarding the previous exemplary embodiments.

Claims (26)

  1. Method of treatment of a material web, in particular a fabric web (15) within a treatment zone, the material web being fed through at least one approximately vertical shaft (16, 17) in a stretched condition, the sides of said shaft surrounding said material web (15) with a shaft width of at least approximately 4 mm and the material web within the shaft being acted upon out of an arrangement of nozzles under turbulent flow conditions by a liquid treatment medium, characterized in that said material web is consecutively acted upon across its entire width in each case out of a separate arrangement of nozzles (39, 40, 43) by at least a vaporous, respectively a gaseous and by a liquid medium in such a way that a turbulent flow of both treatment mediums will arise within the shaft, the pressure within the shaft lying above atmospheric pressure, the action of the treatment medium ensuing at the upper end of the shaft and the treatment medium being drained away at the lower end of the shaft.
  2. Method according to claim 1, characterized in that the material web is acted upon by saturated steam and by a wash liquor.
  3. Method according to one of the claims 1 to 2, characterized in that the action with treatment medium ensues on both sides of the material web.
  4. Method according to one of the claims 1 to 3, characterized in that an ascending and a descending span of the material web is guided in each case through a separate shaft (16, 17) and that, in the case of both shafts, the action with treatment medium ensues at the upper end, both shafts communicating with each other at the upper end.
  5. Method according to one of the claims 1 to 3, characterized in that the material web runs through a plurality of approximately vertical shafts (58, 59), action with the treatment medium ensuing at the upper ends of said shafts.
  6. Method according to claim 5, characterized in that the liquid components of the treatment medium are collected at the lower end of each shaft and fed in counterflow to the arrangement of nozzles of a preceding shaft.
  7. Method according to one of the claims 1 to 6, characterized in that the gaseous, respectively vaporous treatment medium is directed at an inclined angle against the material web.
  8. Method according to one of the claims 1 to 6, characterized in that the side-walls of the shaft are heated with the aid of a vaporous heating medium.
  9. Device for the treatment of a material web, in particular a fabric web (15) within a treatment zone, the material web being able to be acted upon within said treatment zone through an arrangement of nozzles by a liquid treatment medium, said treatment zone being formed by at least one approximately vertical shaft (16, 17), the material web being able to be led through said shaft in a stretched condition, the sides of said shaft surrounding the material web with a shaft width of at least approximately 4 mm, characterized in that at least two arrangements of nozzles (39, 40, 43) are integrated consecutively at the upper end of the shaft in a side-wall, said arrangements of nozzles extending across the entire width of the material web, each arrangement of nozzles being formed by a collector tube (33, 34, 35) possessing a separate feed pipe (36, 37, 38) and at least a vaporous, respectively a gaseous and the liquid treatment medium in each case being able to supplied to said shaft through said collector tubes.
  10. Device according to claim 9, characterized in that the collector tubes directly form a wall section of the shaft.
  11. Device according to claim 9 or 10, characterized in that at least three collector tubes are interconnected to form a unit.
  12. Device according to one of the claims 9 to 11, characterized in that arrangements of nozzles placed opposite one another are provided on both sides of the shaft.
  13. Device according to one of the claims 9 to 12, characterized in that the distance between the running plane of the material web and the arrangement of nozzles is adjustable.
  14. Device according to one of the claims 9 to 13, characterized in that a suction drain device for drawing off the vaporous, respectively gaseous components of the treatment medium and a bath (4) for collecting said liquid components of the treatment medium are arranged beneath the shaft.
  15. Device according to claim 14, characterized in that a plurality of shafts are arranged consecutively in series, and that at least one bath (4) is connected to the suction pipe of a pump (52), the pressure pipe (53) of said pump leading in counterflow to an arrangement of nozzles, said arrangement of nozzles being allocated to a preceding shaft.
  16. Device according to one of the claims 9 to 15, characterized in that two shafts (16, 17) for in each case an ascending and descending span of the material web are connected at their upper ends via a pressure-tight chamber (19) and that deflection means (2) for said material web are arranged within said chamber.
  17. Device according to one of the claims 9 to 16, characterized in that each shaft possesses in cross section hollow side-walls, and that a heating medium can be led through said side-walls.
  18. Device according to claim 17, characterized in that the side-walls are formed by hollow box profiles (68) stacked horizontally one on top of another, the ends of said hollow box profiles being closed off on their facing sides, said hollow box profiles being connected together by means of openings.
  19. Device according to claim 18, characterized in that the arrangements of nozzles are formed by the same hollow box profiles as the side-walls.
  20. Device according to one of the claims 9 to 19, characterized in that the gap width of each shaft can be set by means of an adjustment device.
  21. Device according to claim 9, characterized in that the treatment zone is formed by two parallel approximately vertical shafts (63, 64), said shafts surrounding the material web with a shaft width of up to 40 mm and being connected together at their upper end via a pressure tight chamber (67), deflection means (72) for said material web being arranged within said pressure tight chamber and that, at the ends of both shafts oriented towards the chamber, at least two arrangements of nozzles (76, 77, 78) are provided on both sides of the material web.
  22. Device according to claim 21, characterized in that the side-walls of both shafts are formed by hollow box profiles (68) stacked horizontally one upon the other, and that each arrangement of nozzles possesses a collector tube (76, 77, 78), said collector tube being formed by one of the hollow box profiles.
  23. Device according to claims 21 or 22, characterized in that both the neighbouring inner side-walls (66a, 66b) of both shafts are arranged fixed within a frame, said frame possessing a pillar (71) on each facing side of the side-walls, and that both the outer side-walls (65a, 65b) can be pressed against the inner side-walls by means of a tensioning device (79, 80), the pillars forming the abutment for said tensioning device.
  24. Device according to claim 23, characterized in that the pillars (71) form the walls of the shaft at the facing sides of the side-walls, and that both the outer side-walls (65a, 65b) can each be pressed against a sealing surface (87) on said pillars.
  25. Device according to claim 23 or 24, characterized in that the outer side-walls (65a, 65b) are attached to the pillars (71) via a linkage arm (81) so that said shaft side-walls can be folded out like a parallelogram on release of the tensioning device.
  26. Device according to claim 25, characterized in that the outer side-walls (65a, 65b) are suspended from pressure cylinders (82) and that said side-walls can be lowered on said pressure cylinders on release of the tensioning device.
EP90913321A 1989-09-22 1990-09-18 Process and device for processing a continuous strip of material, in particular woven textile material Expired - Lifetime EP0445245B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH3450/89 1989-09-22
CH345089 1989-09-22
PCT/CH1990/000221 WO1991004367A1 (en) 1989-09-22 1990-09-18 Process and device for processing a continuous strip of material, in particular woven textile material

Publications (2)

Publication Number Publication Date
EP0445245A1 EP0445245A1 (en) 1991-09-11
EP0445245B1 true EP0445245B1 (en) 1996-02-28

Family

ID=4256208

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90913321A Expired - Lifetime EP0445245B1 (en) 1989-09-22 1990-09-18 Process and device for processing a continuous strip of material, in particular woven textile material

Country Status (7)

Country Link
US (1) US5233717A (en)
EP (1) EP0445245B1 (en)
JP (1) JPH07100909B2 (en)
BR (1) BR9006914A (en)
DE (1) DE59010167D1 (en)
ES (1) ES2083460T3 (en)
WO (1) WO1991004367A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59503297D1 (en) * 1994-01-28 1998-10-01 Solipat Ag Method and device for treating a textile web which is particularly sensitive to the textile
EP0725177A4 (en) * 1994-07-07 1996-12-27 Komatsu Seiren Co Apparatus for treating cloth
EP0856602A1 (en) * 1997-01-31 1998-08-05 Benninger AG Method and device for applying vat dyes, particularly indigo to warp yarns
ITMI20021696A1 (en) * 2002-07-30 2004-01-30 H T P Unitex S P A METHOD AND MACHINE FOR THE INDUSTRIAL WASHING OF STRIP TEXTILE PRODUCTS
US7332726B2 (en) * 2004-06-19 2008-02-19 Integrated Sensors, Llc Plasma panel based ionizing radiation detector
ITMI20131492A1 (en) * 2013-09-10 2015-03-11 C. PLANT AND METHOD FOR WASHING FABRICS
US9970141B2 (en) 2015-02-18 2018-05-15 Morrison Textile Machinery Company Apparatus and method for washing an elongate textile article

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Publication number Priority date Publication date Assignee Title
US2008230A (en) * 1933-06-06 1935-07-16 Spooner William Wycliffe Steaming of webs of material
US2398856A (en) * 1942-07-29 1946-04-23 Celanese Corp Apparatus for the treatment of artificial materials
FR1157034A (en) * 1956-03-23 1958-05-23 American Viscose Corp Processes and equipment for finishing textile and textile products thus treated
US2900991A (en) * 1956-03-26 1959-08-25 Ajem Lab Inc Power washer
NL286204A (en) * 1961-12-01
US3241343A (en) * 1962-08-28 1966-03-22 Yazawa Masahide Apparatus for continuous high speed and uniform processing of fiber material
US3493422A (en) * 1967-02-28 1970-02-03 Du Pont Apparatus and process for liquid treatment of shaped structures
US3750428A (en) * 1970-04-02 1973-08-07 Brueckner Apparatebau Gmbh Apparatus for washing, drying and fixing a textile web
GB1433525A (en) * 1973-04-03 1976-04-28 Pegg S & Son Ltd Finishing of textiles
DE2365079A1 (en) * 1973-12-28 1975-07-03 Hoechst Ag METHOD AND DEVICE FOR IMPRAEGNING OR COATING TEXTILE MATERIALS
GB1437577A (en) * 1974-04-10 1976-05-26 Riggs & Lombard Inc Method and apparatus for treating fabric
US3940955A (en) * 1974-11-26 1976-03-02 E. I. Du Pont De Nemours And Co. Yarn extraction and washing apparatus
DE3012612A1 (en) * 1980-04-01 1981-10-08 Konrad Hornschuch Ag, 7119 Weissbach Permeable material washing - has sprayed water on one side and suction on the other
DE3024490A1 (en) * 1980-06-28 1982-01-21 E.F. Kress Söhne, 4154 Tönisvorst DEVICE FOR WASHING LONG LANES, IN PARTICULAR. TEXTILE RAILS
DE3137663A1 (en) * 1981-09-22 1983-04-07 Brückner-Apparatebau GmbH, 6120 Erbach METHOD AND DEVICE FOR RINSING TEXTILE MATERIAL
DE3151465A1 (en) * 1981-12-24 1983-07-07 Hoechst Ag, 6230 Frankfurt "METHOD AND DEVICE FOR TREATING FIBER CABLES"

Also Published As

Publication number Publication date
ES2083460T3 (en) 1996-04-16
EP0445245A1 (en) 1991-09-11
US5233717A (en) 1993-08-10
JPH07100909B2 (en) 1995-11-01
BR9006914A (en) 1992-01-28
JPH04501892A (en) 1992-04-02
DE59010167D1 (en) 1996-04-04
WO1991004367A1 (en) 1991-04-04

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