EP0625606B1 - Method and apparatus for wet treatment of textile materials with help of ultrasonic waves - Google Patents

Method and apparatus for wet treatment of textile materials with help of ultrasonic waves Download PDF

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Publication number
EP0625606B1
EP0625606B1 EP94890087A EP94890087A EP0625606B1 EP 0625606 B1 EP0625606 B1 EP 0625606B1 EP 94890087 A EP94890087 A EP 94890087A EP 94890087 A EP94890087 A EP 94890087A EP 0625606 B1 EP0625606 B1 EP 0625606B1
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Prior art keywords
liquid medium
tube
textile material
ultrasonic
radiating surface
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EP94890087A
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German (de)
French (fr)
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EP0625606A1 (en
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Hans Dieter Mertinat
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
    • D06M10/02—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements ultrasonic or sonic; Corona discharge
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B13/00—Treatment of textile materials with liquids, gases or vapours with aid of vibration

Definitions

  • the invention relates to a process for the treatment of textile goods, in particular woven or knitted textile goods, in which the textile goods are subjected to direct ultrasound radiation in a liquid medium by being guided past the radiation surface of at least one ultrasound transmitter.
  • the invention was therefore based on the object of specifying an effective method for ultrasound treatment of textile goods in strand form.
  • the invention proposes, starting from a method of the type mentioned at the outset, repeatedly passing the textile material in the form of an endless strand through a tube flooded with the liquid medium, in the wall of which the or each ultrasound transmitter with built-in radiation surface is installed .
  • the ultrasonic treatment according to the invention can be used for pretreatment and finishing treatment as well as for dyeing, bleaching and finishing.
  • Pretreatment includes, in particular, the disintegration of tissue with a view to better dyeing and more uniform color loss in a later dyeing process, the removal or softening of wood residues in linen fabrics, the disintegration of dead cotton for better dye absorption, tissue desizing and cleaning and as a finishing treatment especially the soft grip and the improvement of the optics by maintaining the roundness in question.
  • water serves as the liquid medium during the pre-treatment or finishing treatment.
  • a pretreatment according to the invention has the further advantage that the treatment time is far less than previously required and, moreover, considerable energy savings are achieved.
  • the liquid medium is formed by the dyeing or bleaching liquor.
  • dyeing all common dyes, in particular Reactive or indanthrene dyes can be used.
  • the ultrasound treatment according to the invention primarily results in a lower dye requirement due to a higher yield and a shortening of the dyeing time.
  • the ultrasound treatment also leads to a more perfect coloration of the tissue, especially at the binding points.
  • wetting agents or penetration accelerators which means less wastewater pollution.
  • the respective finishing liquor serves as the liquid medium.
  • the amount of chemicals used can be significantly reduced by improving the effectiveness of the products introduced.
  • the textile material is expediently guided past the radiation surface of the ultrasound transmitter (s) at a short distance of 0 to 20 mm, preferably of 0 to 2 mm.
  • an ultrasonic energy in the range from 10 to 1000 W / cm 2 , in particular from 50 to 200 W / cm 2 , and with an amplitude range of the ultrasonic waves from 20 to 150 ⁇ m.
  • a device for carrying out the method according to the invention comprises at least one ultrasound transmitter, the radiation surface of which is arranged in the liquid medium, and a transport device for guiding the textile goods past the radiation surface (s) and is characterized according to the invention in that the or each ultrasound transmitter in the wall of a tube flooded with the liquid medium, preferably arranged essentially horizontally, with a radiation surface directed into the tube interior, and that the textile material can be passed continuously through the tube in the form of an endless strand by the transport device.
  • the device has a trough containing the liquid medium, the tube being submerged in the liquid medium.
  • the device has a container through which the liquid medium flows, the tube being formed by part of the container.
  • Such containers are currently e.g. used in closed high-temperature piece dyeing machines.
  • the tube in the area of the ultrasound transmitter (s) can expediently have a reduced cross section in order to constrict the strand in this area and to lead it as close as possible to the radiation surface of the ultrasound transmitter (s).
  • a plurality of ultrasound transmitters are arranged one behind the other in the longitudinal direction of the tube or are distributed over at least part of the circumference since thereby further shortening the treatment time.
  • the output of the ultrasound generator (s) and the transport speed of the textile product which is dependent on the ultrasound generator output, the type of textile material to be treated and the desired result, can be set, since this enables the optimum treatment conditions to be achieved in each case.
  • FIG. 1 shows a schematic illustration of a first embodiment of the device according to the invention
  • FIG. 2 on a larger scale a longitudinal section of detail A in FIG. 1
  • FIG. 3 on a larger scale a section along the line III-III in FIG 1
  • FIG. 4 shows a schematic illustration of a second embodiment of the device according to the invention
  • FIG. 5 shows a section along the line VV in FIG. 4.
  • the device shown in Fig. 1 comprises a tub 1 which is filled with a liquid medium 2, e.g. Water that is filled.
  • a drain valve 3 is used for emptying the trough 1.
  • 4 denotes a tube arranged in the liquid medium, in the wall of which an ultrasound transmitter 5 is installed.
  • a transport device consisting of a driven roller 6 and a deflection roller 7 allows a woven web or knitted textile web 8 sewn together at its ends to be transported continuously through the tube 4 in the form of an endless strand at a speed in the range from 20 to 100 m / min .
  • FIGS. 2 and 3 A possible way of mounting the ultrasound transmitter 5 on the tube 4 can be seen from FIGS. 2 and 3.
  • a spacer tube 10 is welded to the tube 4 around an opening 9 in the tube wall, in which the ultrasound transmitter 5 is mounted in such a way that its radiation surface 11 directed into the tube interior lies essentially at the level of the inside of the tube wall.
  • a flange 12 of the spacer tube 10 serves to fasten the entire arrangement e.g. on beams (not shown) extending across the tub 1.
  • the tube 4 has a cross section reduced by approximately half in order to constrict the strand 8 and to lead it as close as possible to the radiation surface 11 of the ultrasound transmitter 5.
  • the rear, electrical part of the ultrasound transmitter 5 is arranged outside the liquid medium 2, so that there are no particular insulation and sealing problems.
  • ultrasound transmitter 5 instead of the single ultrasound transmitter 5 shown, several ultrasound transmitters could also be provided one behind the other or distributed over at least part of the tube circumference. In such a case, too, an arrangement should expediently be chosen in which the electrical part of each of the ultrasound transmitters is located outside the liquid medium.
  • the device shown in Fig. 4 is constructed in the manner of a so-called high-temperature piece dyeing machine, which forms a closed system in which high dyeing temperatures of up to 140 ° C can be achieved, such as when dyeing articles made of polyester fibers (Dyeing temperature 130 to 135 ° C) are required.
  • the device essentially consists of a container 21 which is partly filled with the liquid medium 22, in particular a dyeing liquor, and which opens into itself over a tubular container part 24 which runs essentially horizontally over a longer distance and forms the so-called intensive treatment section.
  • the endless strand 28 dealt with here which in turn can be formed, for example, by a woven or knitted textile web, runs into the tubular part 24 via a guide reel 26, its transport mainly taking place through a liquor flow maintained in the container 21.
  • This liquor flow is generated by a circulation pump (not shown) connected to the lowest point of the container 21, which pumps the sucked-off liquor into a (not shown) induction nozzle at the end of the tubular part 24 entering the strand.
  • a hatch for loading and unloading the device is shown.
  • transport speeds of the treated textile goods can be achieved up to about 1000 m / min.
  • Transport speeds in the range from 100 to 350 m / min have proven to be the most expedient for the ultrasound treatment according to the invention in such a device.
  • such a device although particularly suitable for dyeing, can also be used for other types of treatment, e.g. for soft handling, can be used.
  • all ultrasound transmitters which work in the technically customary sound range from 18 to 60 kHz are suitable.
  • the sound pressure radiation per ultrasound transmitter is expediently between 500 and 5000 watts, the radiation area of the ultrasound transmitter being selected so that the ultrasound energy generated is in the range from 10 to 1000 W / cm 2 , in particular from 50 to 200 W / cm 2 .
  • the appropriate amplitude range extends from 20 to 150 ⁇ m.
  • the intensity of the energy effect of the ultrasound transmitter decreases with increasing distance between the radiation surface of the ultrasound transmitter and the textile material to be treated.
  • the textile material is therefore expediently guided past the radiation surface of the ultrasound transmitter (s) at a short distance of 0 to 20 mm, preferably 0 to 2 mm.
  • the ultrasound treatment according to the invention can be used both for pretreatment and finishing treatment as well as for dyeing, bleaching and finishing, water, dyeing, bleaching or finishing liquors or other chemicals being used as the liquid medium.
  • the main advantage of the ultrasound treatment according to the invention is, above all, that the duration of treatment and the chemical and energy requirements are far below the usual range.
  • the tissue was significantly lighter and cleaner than without.
  • the alkaline boiling process which is otherwise necessary for linen, has become superfluous.
  • the wood parts were much softer and subsequently easier to color.
  • the amount of plasticizer in the final equipment could be reduced by 50% with the ultrasonic treatment, and this with the same handle failure.

Abstract

In a method for the treatment of textile material, especially woven or knitted textile material, in which the textile material is subjected to direct ultrasonic radiation in a liquid medium, in that it is guided past the radiating surface of at least one ultrasonic transmitter, it is proposed to guide the textile material repeatedly in the form of an endless strand through a pipe, through which the liquid medium flows and in the wall of which the or each ultrasonic transmitter is installed, with a radiating surface directed into the pipe interior. The apparatus for carrying out the method comprises at least one ultrasonic transmitter, the radiating surface of which is arranged in the liquid medium, and a transport device for guiding the textile material past the radiating surface or radiating surfaces, and is characterised in that the or each ultrasonic transmitter (5) is installed in the wall of a preferably essentially horizontally arranged pipe (4) through which the liquid medium (2) flows, with the radiating surface (11) directed into the pipe interior, and in that the textile material (8) can be guided continuously in the form of an endless strand through the pipe (4) by means of the transport device (6, 7). <IMAGE>

Description

Die Erfindung betrifft ein Verfahren zur Behandlung von Textilgut, insbesondere gewebter oder gewirkter Textilware, bei welchem das Textilgut in einem flüssigen Medium einer direkten Ultraschallbestrahlung unterworfen wird, indem es an der Abstrahlfläche mindestens eines Ultraschallgebers vorbeigeführt wird.The invention relates to a process for the treatment of textile goods, in particular woven or knitted textile goods, in which the textile goods are subjected to direct ultrasound radiation in a liquid medium by being guided past the radiation surface of at least one ultrasound transmitter.

Derartige Verfahren sind bereits bekannt (vgl. hiezu beispielsweise die DE-C-36 38 140 und die US-A-4 302 485), wobei die Ultraschallbestrahlung vor allem dazu dient, den Effekt der jeweiligen Behandlung des Textilguts in dem flüssigen Medium zu steigern. Bei sämtlichen dieser bekannten Verfahren wird das Textilgut in ausgebreiteter Form behandelt.Such methods are already known (see, for example, DE-C-36 38 140 and US-A-4 302 485), the ultrasound radiation serving primarily to increase the effect of the respective treatment of the textile goods in the liquid medium . In all of these known processes, the textile material is treated in a spread form.

Bei zahlreichen Textilbehandlungen, insbesondere bei solchen, die eine größere Anzahl von Durchläufen durch das flüssige Medium erfordern, ist es aber zweckmäßiger, das Textilgut im Strang und nicht in ausgebreiteter Form zu behandeln.With numerous textile treatments, especially those which require a larger number of passes through the liquid medium, it is more expedient to treat the textile material in a strand and not in a spread form.

Der Erfindung lag daher die Aufgabe zugrunde, ein wirksames Verfahren zur Ultraschallbehandlung von in Strangform vorliegenden Textilguts anzugeben.The invention was therefore based on the object of specifying an effective method for ultrasound treatment of textile goods in strand form.

Zur Lösung dieser Aufgabe schlägt die Erfindung ausgehend von einem Verfahren der eingangs angegebenen Art vor, das Textilgut in Form eines endlosen Stranges wiederholt durch ein von dem flüssigen Medium durchflutetes Rohr hindurchzuführen, in dessen Wandung der bzw. jeder Ultraschallgeber mit ins Rohrinnere gerichteter Abstrahlfläche eingebaut ist.To achieve this object, the invention proposes, starting from a method of the type mentioned at the outset, repeatedly passing the textile material in the form of an endless strand through a tube flooded with the liquid medium, in the wall of which the or each ultrasound transmitter with built-in radiation surface is installed .

Die erfindungsgemäße Ultraschallbehandlung kann sowohl zur Vorbehandlung und Veredelungsbehandlung als auch zum Färben, Bleichen und Appretieren herangezogen werden.The ultrasonic treatment according to the invention can be used for pretreatment and finishing treatment as well as for dyeing, bleaching and finishing.

Als Vorbehandlung kommen insbesondere das Aufschließen von Gewebe im Hinblick auf ein besseres Durchfärben und einen gleichmäßigeren Farbausfall bei einem späteren Färbevorgang, das Entfernen bzw. Geschmeidigmachen von Holzrückständen in Leinengeweben, das Aufschließen von toter Baumwolle zur besseren Farbstoffaufnahme, die Gewebeentschlichtung und die Reinigung und als Veredelungsbehandlung insbesondere die Weichgriffgebung und die Verbesserung der Optik durch Erhaltung der Rundfädigkeit in Frage.Pretreatment includes, in particular, the disintegration of tissue with a view to better dyeing and more uniform color loss in a later dyeing process, the removal or softening of wood residues in linen fabrics, the disintegration of dead cotton for better dye absorption, tissue desizing and cleaning and as a finishing treatment especially the soft grip and the improvement of the optics by maintaining the roundness in question.

Bei der Vor- oder Veredelungsbehandlung dient in der Regel Wasser als flüssiges Medium.As a rule, water serves as the liquid medium during the pre-treatment or finishing treatment.

Neben der zumindest teilweisen Vermeidung des sonst üblichen Einsatzes großer Mengen an umweltschädlichen Chemikalien hat eine erfindungsgemäße Vorbehandlung den weiteren Vorteil, daß die Behandlungsdauer weit unter der bisher erforderlichen liegt und überdies eine beträchtliche Energieeinsparung erzielt wird.In addition to the at least partial avoidance of the otherwise usual use of large amounts of environmentally harmful chemicals, a pretreatment according to the invention has the further advantage that the treatment time is far less than previously required and, moreover, considerable energy savings are achieved.

Bei der Anwendung der Erfindung auf das Färben oder Bleichen ist das flüssige Medium von der Färbe- bzw. Bleichflotte gebildet. Beim Färben können sämtliche üblichen Farbstoffe, insbesondere Reaktiv- oder Indanthrenfarbstoffe, eingesetzt werden. Hier wird durch die erfindungsgemäße Ultraschallbehandlung vor allem ein geringerer Farbstoffbedarf durch höhere Ausbeute und eine Verkürzung der Färbezeit erzielt. Auch führt die Ultraschallbehandlung zu einer perfekteren Durchfärbung des Gewebes, insbesondere an den Bindungspunkten. Schließlich entfällt auch die Notwendigkeit eines Einsatzes von Netzmitteln oder Penetrationsbeschleunigern, was eine geringere Abwasserbelastung zur Folge hat.When the invention is applied to dyeing or bleaching, the liquid medium is formed by the dyeing or bleaching liquor. When dyeing all common dyes, in particular Reactive or indanthrene dyes can be used. Here, the ultrasound treatment according to the invention primarily results in a lower dye requirement due to a higher yield and a shortening of the dyeing time. The ultrasound treatment also leads to a more perfect coloration of the tissue, especially at the binding points. Finally, there is no need to use wetting agents or penetration accelerators, which means less wastewater pollution.

Bei Anwendung der Erfindung auf das Appretieren dient als flüssiges Medium die jeweilige Appreturflotte. Hier kann durch eine bessere Wirksamkeit der eingebrachten Produkte die Einsatzmenge an Chemikalien erheblich gesenkt werden.When the invention is applied to the finishing, the respective finishing liquor serves as the liquid medium. Here, the amount of chemicals used can be significantly reduced by improving the effectiveness of the products introduced.

Für das erfindungsgemäße Appretieren kommt insbesondere die griffgebende Ausrüstung in Frage.For the finishing according to the invention, in particular the handle-making equipment comes into question.

Zweckmäßig wird das Textilgut an der Abstrahlfläche des bzw. der Ultraschallgeber in einem geringen Abstand von 0 bis 20 mm, vorzugsweise von 0 bis 2 mm, vorbeigeführt.The textile material is expediently guided past the radiation surface of the ultrasound transmitter (s) at a short distance of 0 to 20 mm, preferably of 0 to 2 mm.

Nach weiteren Merkmalen der Erfindung wird zweckmäßig mit einer Ultraschallenergie im Bereich von 10 bis 1000 W/cm2, insbesondere von 50 bis 200 W/cm2, sowie mit einem Amplitudenbereich der Ultraschallwellen von 20 bis 150 µm gearbeitet.According to further features of the invention, it is expedient to work with an ultrasonic energy in the range from 10 to 1000 W / cm 2 , in particular from 50 to 200 W / cm 2 , and with an amplitude range of the ultrasonic waves from 20 to 150 μm.

Eine Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens umfaßt mindestens einen Ultraschallgeber, dessen Abstrahlfläche in dem flüssigen Medium angeordnet ist, sowie eine Transporteinrichtung zum Vorbeiführen des Textilguts an der (den) Abstrahlfläche(n) und ist erfindungsgemäß dadurch gekennzeichnet, daß der bzw. jeder Ultraschallgeber in die Wandung eines von dem flüssigen Medium durchfluteten, vorzugsweise im wesentlichen horizontal angeordneten Rohres mit ins Rohrinnere gerichteter Abstrahlfläche eingebaut ist, und daß durch die Transporteinrichtung das Textilgut in Form eines endlosen Stranges kontinuierlich durch das Rohr hindurchführbar ist.A device for carrying out the method according to the invention comprises at least one ultrasound transmitter, the radiation surface of which is arranged in the liquid medium, and a transport device for guiding the textile goods past the radiation surface (s) and is characterized according to the invention in that the or each ultrasound transmitter in the wall of a tube flooded with the liquid medium, preferably arranged essentially horizontally, with a radiation surface directed into the tube interior, and that the textile material can be passed continuously through the tube in the form of an endless strand by the transport device.

In einer ersten Ausführungsform weist die Vorrichtung eine das flüssige Medium enthaltende Wanne auf, wobei das Rohr in dem flüssigen Medium untergetaucht ist.In a first embodiment, the device has a trough containing the liquid medium, the tube being submerged in the liquid medium.

In einer zweiten Ausführungsform weist die Vorrichtung einen von dem flüssigem Medium durchströmten Behälter auf, wobei das Rohr von einem Teil des Behälters gebildet ist. Derartige Behälter kommen derzeit z.B. bei geschlossenen Hochtemperatur-Stückfärbemaschinen zum Einsatz.In a second embodiment, the device has a container through which the liquid medium flows, the tube being formed by part of the container. Such containers are currently e.g. used in closed high-temperature piece dyeing machines.

Zweckmäßig kann das Rohr im Bereich des bzw. der Ultraschallgeber einen verminderten Querschnitt besitzen, um den Strang in diesem Bereich einzuschnüren und möglichst nahe an der Abstrahlfläche des bzw. der Ultraschallgeber vorbeizuführen.The tube in the area of the ultrasound transmitter (s) can expediently have a reduced cross section in order to constrict the strand in this area and to lead it as close as possible to the radiation surface of the ultrasound transmitter (s).

Vorteilhaft ist weiters, den bzw. jeden Ultraschallgeber so anzuordnen, daß sich sein elektrischer Teil außerhalb des flüssigen Mediums befindet, sodaß sich keine besonderen Isolierungs- und Abdichtprobleme ergeben.It is also advantageous to arrange the or each ultrasound transmitter so that its electrical part is outside the liquid medium, so that there are no special insulation and sealing problems.

Femer kann es zweckmäßig sein, wenn mehrere Ultraschallgeber in Längsrichtung des Rohres hintereinander angeordnet oder über zumindest einem Teil des Umfanges verteilt sind, da sich dadurch eine weitere Verkürzung der Behandlungszeit erzielen läßt.It can also be expedient if a plurality of ultrasound transmitters are arranged one behind the other in the longitudinal direction of the tube or are distributed over at least part of the circumference since thereby further shortening the treatment time.

Schließlich ist es zweckmäßig, wenn die Leistung des (der) Ultraschallgeber(s) und die von der Ultraschallgeberleistung, der Art des zu behandelnden Textilguts und dem gewünschten Ergebnis abhängige Transportgeschwindigkeit des Textilguts einstellbar ist, da damit die jeweils optimalen Behandlungsbedingungen realisiert werden können.Finally, it is expedient if the output of the ultrasound generator (s) and the transport speed of the textile product, which is dependent on the ultrasound generator output, the type of textile material to be treated and the desired result, can be set, since this enables the optimum treatment conditions to be achieved in each case.

Nachstehend ist die Erfindung anhand der Zeichnungen näher erläutert. In den Zeichnungen zeigen: Fig. 1 eine schematische Darstellung einer ersten Ausführungsform der erfindungsgemäßen Vorrichtung, Fig. 2 in größerem Maßstab einen Längsschnitt des Details A in Fig. 1, Fig. 3 in größerem Maßstab einen Schnitt nach der Linie III-III in Fig. 1, Fig. 4 eine schematische Darstellung einer zweiten Ausführungsform der erfindungsgemäßen Vorrichtung und Fig. 5 einen Schnitt nach der Linie V-V in Fig. 4.The invention is explained in more detail below with reference to the drawings. 1 shows a schematic illustration of a first embodiment of the device according to the invention, FIG. 2 on a larger scale a longitudinal section of detail A in FIG. 1, FIG. 3 on a larger scale a section along the line III-III in FIG 1, FIG. 4 shows a schematic illustration of a second embodiment of the device according to the invention, and FIG. 5 shows a section along the line VV in FIG. 4.

Die in Fig. 1 dargestellte Vorrichtung umfaßt eine Wanne 1, die bis auf etwa halbe Höhe mit einem flüssigen Medium 2, z.B. Wasser, gefüllt ist. Ein Ablaßventil 3 dient zum Entleeren der Wanne 1. Mit 4 ist ein in dem flüssigen Medium angeordnetes Rohr bezeichnet, in dessen Wandung ein Ultraschallgeber 5 eingebaut ist. Eine aus einer angetriebenen Walze 6 und einer Umlenkwalze 7 bestehende Transporteinrichtung erlaubt, eine an ihren Enden zusammengenähte, gewebte oder gewirkte Textilbahn 8 in Form eines endlosen Stranges zweckmäßig mit einer Geschwindigkeit im Bereich von 20 bis 100 m/min kontinuierlich durch das Rohr 4 zu transportieren.The device shown in Fig. 1 comprises a tub 1 which is filled with a liquid medium 2, e.g. Water that is filled. A drain valve 3 is used for emptying the trough 1. 4 denotes a tube arranged in the liquid medium, in the wall of which an ultrasound transmitter 5 is installed. A transport device consisting of a driven roller 6 and a deflection roller 7 allows a woven web or knitted textile web 8 sewn together at its ends to be transported continuously through the tube 4 in the form of an endless strand at a speed in the range from 20 to 100 m / min .

Aus den Fig. 2 und 3 ist eine mögliche Art der Montage des Ultraschallgebers 5 an dem Rohr 4 ersichtlich. An dem Rohr 4 ist rund um eine Öffnung 9 in der Rohrwandung ein Distanzrohr 10 angeschweißt, in welchem der Ultraschallgeber 5 so montiert ist, daß seine ins Rohrinnere gerichtete Abstrahlfläche 11 im wesentlichen auf Höhe der Innenseite der Rohrwandung liegt. Ein Flansch 12 des Distanzrohres 10 dient zur Befestigung der gesamten Anordnung z.B. an (nicht gezeigten) sich quer durch die Wanne 1 erstreckenden Trägern. Im Bereich des Ultraschallgebers 5 hat das Rohr 4 einen etwa auf die Hälfte verminderten Querschnitt, um den Strang 8 einzuschnüren und möglichst nahe an der Abstrahlfläche 11 des Ultraschallgebers 5 vorbeizuführen.A possible way of mounting the ultrasound transmitter 5 on the tube 4 can be seen from FIGS. 2 and 3. A spacer tube 10 is welded to the tube 4 around an opening 9 in the tube wall, in which the ultrasound transmitter 5 is mounted in such a way that its radiation surface 11 directed into the tube interior lies essentially at the level of the inside of the tube wall. A flange 12 of the spacer tube 10 serves to fasten the entire arrangement e.g. on beams (not shown) extending across the tub 1. In the area of the ultrasound transmitter 5, the tube 4 has a cross section reduced by approximately half in order to constrict the strand 8 and to lead it as close as possible to the radiation surface 11 of the ultrasound transmitter 5.

Wie aus Fig. 1 ersichtlich, ist der hintere, elektrische Teil des Ultraschallgebers 5 außerhalb des flüssigen Mediums 2 angeordnet, sodaß sich keine besonderen Isolierungs- und Abdichtprobleme ergeben.As can be seen from FIG. 1, the rear, electrical part of the ultrasound transmitter 5 is arranged outside the liquid medium 2, so that there are no particular insulation and sealing problems.

Anstelle des dargestellten einzigen Ultraschallgebers 5 könnten auch mehrere Ultraschallgeber hintereinander oder über zumindest einen Teil des Rohrumfanges verteilt vorgesehen sein. Auch in einem solchen Fall sollte zweckmäßig eine Anordnung gewählt werden, bei der sich der elektrische Teil jedes der Ultraschallgeber außerhalb des flüssigen Mediums befindet.Instead of the single ultrasound transmitter 5 shown, several ultrasound transmitters could also be provided one behind the other or distributed over at least part of the tube circumference. In such a case, too, an arrangement should expediently be chosen in which the electrical part of each of the ultrasound transmitters is located outside the liquid medium.

Die in Fig. 4 dargestellte Vorrichtung ist nach Art einer sogenannten Hochtemperatur-Stückfärbemaschine aufgebaut, die ein geschlossenes System bildet, in dem hohe Färbetemperaturen bis zu 140°C erreicht werden können, wie sie insbesondere beim Färben von Artikeln aus Polyesterfasern (Färbetemperatur 130 bis 135°C) erforderlich sind. Die Vorrichtung besteht im wesentlichen aus einem zum Teil mit dem flüssigen Medium 22, insbesondere einer Färbeflotte, gefüllten Behälter 21, der über einen über eine längere Strecke im wesentlichen horizontal verlaufenden rohrförmigen Behälterteil 24, der die sogenannte Intensivbehandlungsstrecke bildet, in sich selbst mündet. Der hier behandelte endlose Strang 28, der z.B. wiederum von einer gewebten oder gewirkten Textilbahn gebildet sein kann, läuft über eine Führungshaspel 26 in den rohrförmigen Teil 24 ein, wobei sein Transport hauptsächlich durch eine im Behälter 21 aufrechterhaltene Flottenströmung erfolgt. Diese Flottenströmung wird durch eine an unterster Stelle des Behälters 21 angeschlossene Zirkulationspumpe (nicht dargestellt) erzeugt, die die abgesaugte Flotte in eine (nicht dargestellte) Einspüldüse am Strangeinlaufende des rohrförmigen Teils 24 fördert. Bei 27 ist eine Klappe für die Be- und Entladung der Vorrichtung gezeigt.The device shown in Fig. 4 is constructed in the manner of a so-called high-temperature piece dyeing machine, which forms a closed system in which high dyeing temperatures of up to 140 ° C can be achieved, such as when dyeing articles made of polyester fibers (Dyeing temperature 130 to 135 ° C) are required. The device essentially consists of a container 21 which is partly filled with the liquid medium 22, in particular a dyeing liquor, and which opens into itself over a tubular container part 24 which runs essentially horizontally over a longer distance and forms the so-called intensive treatment section. The endless strand 28 dealt with here, which in turn can be formed, for example, by a woven or knitted textile web, runs into the tubular part 24 via a guide reel 26, its transport mainly taking place through a liquor flow maintained in the container 21. This liquor flow is generated by a circulation pump (not shown) connected to the lowest point of the container 21, which pumps the sucked-off liquor into a (not shown) induction nozzle at the end of the tubular part 24 entering the strand. At 27, a hatch for loading and unloading the device is shown.

In die Wandung des sich im wesentlichen horizontal erstreckenden rohrförmigen Teils 24 sind drei um den Umfang des rohrförmigen Teils gleichmäßig verteilte (siehe Fig. 5) und in Längsrichtung des rohrförmigen Teils gegeneinander versetzte Ultraschallgeber 25, 25' und 25'' eingebaut. Die Montage dieser Ultraschallgeber kann hiebei auf dieselbe Art bewerkstelligt sein wie bei dem Ultraschallgeber 5 der Fig. 2 und 3.In the wall of the substantially horizontally extending tubular part 24, three ultrasound transducers 25, 25 'and 25' 'are evenly distributed around the circumference of the tubular part (see FIG. 5) and offset in the longitudinal direction of the tubular part. The assembly of these ultrasound transmitters can be accomplished in the same way as with the ultrasound transmitter 5 of FIGS. 2 and 3.

Bei den vorher angesprochenen bekannten Hochtemperatur-Stückfärbemaschinen können Transportgeschwindigkeiten des behandelten Textilguts bis zu etwa 1000 m/min erreicht werden.In the known high-temperature piece dyeing machines mentioned above, transport speeds of the treated textile goods can be achieved up to about 1000 m / min.

Für die erfindungsgemäße Ultraschallbehandlung in einer solchen Vorrichtung haben sich Transportgeschwindigkeiten im Bereich von 100 bis 350 m/min als am zweckmäßigsten erwiesen.Transport speeds in the range from 100 to 350 m / min have proven to be the most expedient for the ultrasound treatment according to the invention in such a device.

Es versteht sich, daß eine solche Vorrichtung, obwohl für das Färben besonders geeignet, ohne weiteres auch für andere Behandlungsarten, z.B. für die Weichgriffgebung, herangezogen werden kann.It is understood that such a device, although particularly suitable for dyeing, can also be used for other types of treatment, e.g. for soft handling, can be used.

Für die erfindungsgemäße Ultraschallbehandlung eignen sich sämtliche Ultraschallgeber, die im technisch üblichen Schallbereich von 18 bis 60 kHz arbeiten. Die Schalldruckabstrahlung pro Ultraschallgeber erfolgt zweckmäßig zwischen 500 und 5000 Watt, wobei die Abstrahlfläche des Ultraschallgebers so gewählt ist, daß die erzeugte Ultraschallenergie im Bereich von 10 bis 1000 W/cm2, insbesondere von 50 bis 200 W/cm2, liegt. Der zweckmäßige Amplitudenbereich erstreckt sich von 20 bis 150 µm.For the ultrasound treatment according to the invention, all ultrasound transmitters which work in the technically customary sound range from 18 to 60 kHz are suitable. The sound pressure radiation per ultrasound transmitter is expediently between 500 and 5000 watts, the radiation area of the ultrasound transmitter being selected so that the ultrasound energy generated is in the range from 10 to 1000 W / cm 2 , in particular from 50 to 200 W / cm 2 . The appropriate amplitude range extends from 20 to 150 µm.

Wie bekannt, nimmt die Intensität der Energieeinwirkung der Ultraschallgeber mit zunehmendem Abstand zwischen der Abstrahlfläche des Ultraschallgebers und des zu behandelnden Textilguts ab. Zweckmäßig wird daher das Textilgut in einem geringen Abstand von 0 bis 20 mm, vorzugsweise von 0 bis 2 mm, an der Abstrahlfläche des bzw. der Ultraschallgeber vorbeigeführt.As is known, the intensity of the energy effect of the ultrasound transmitter decreases with increasing distance between the radiation surface of the ultrasound transmitter and the textile material to be treated. The textile material is therefore expediently guided past the radiation surface of the ultrasound transmitter (s) at a short distance of 0 to 20 mm, preferably 0 to 2 mm.

Zweckmäßig ist weiters, wenn die Leistung des bzw. der Ultraschallgeber sowie die Transportgeschwindigkeit des Textilguts einstellbar ist, da damit jeweils die optimalen Behandlungsbedingungen realisiert werden können.It is also expedient if the output of the ultrasound generator (s) and the transport speed of the textile goods can be set, since the optimum treatment conditions can be achieved in each case.

Die erfindungsgemäße Ultraschallbehandlung kann, wie bereits erwähnt, sowohl zur Vorbehandlung und Veredelungsbehandlung als auch zum Färben, Bleichen und Appretieren herangezogen werden, wobei als flüssiges Medium Wasser, Färbe-, Bleich- oder Appreturflotten oder auch sonstige Chemikalien in Frage kommen.As already mentioned, the ultrasound treatment according to the invention can be used both for pretreatment and finishing treatment as well as for dyeing, bleaching and finishing, water, dyeing, bleaching or finishing liquors or other chemicals being used as the liquid medium.

Der Hauptvorteil der erfindungsgemäßen Ultraschallbehandlung liegt vor allem darin, daß die Behandlungsdauer und der Chemikalien- und Energiebedarf weit unter dem sonst üblichen Rahmen liegen.The main advantage of the ultrasound treatment according to the invention is, above all, that the duration of treatment and the chemical and energy requirements are far below the usual range.

Anstelle einer gewebten oder gewirkten Textilware ist es auch möglich, im Strang geführte Textilfäden einer erfindungsgemäßen Ultraschallbehandlung zu unterziehen. Ein Beispiel hiefür ist insbesondere das Färben von zu Jeansstoffen zu verarbeitenden Baumwoll-Kettfäden.Instead of a woven or knitted textile product, it is also possible to subject textile threads guided in the strand to an ultrasound treatment according to the invention. An example of this is in particular the dyeing of cotton warp threads to be processed into denim fabrics.

Abschließend sei die Erfindung noch anhand eines praktischen Beispiels näher erläutert.Finally, the invention will be explained in more detail using a practical example.

Beispiel: Für den Versuch wurde ein Rohleinengewebe mit einer Breite von 164 cm und einem Ifm-Gewicht von 652 g verwendet. Es wurden zwei Stränge gebildet, die beide einem üblichen Vorwaschen in einer offenen Wanne nach Fig. 1 unterzogen wurden, wobei einer der Stränge zusätzlich einer erfindungsgemäßen Ultraschallbehandlung unterworfen wurde, indem er durch ein mit einem einzigen Ultraschallgeber bestücktes Rohr geführt wurde, wobei die Geräteleistung des Ultraschallgebers 2000 Watt bei 20 kHz betrug. Example: A raw linen fabric with a width of 164 cm and an Ifm weight of 652 g was used for the test. 1, wherein one of the strands was additionally subjected to an ultrasound treatment according to the invention by being passed through a tube equipped with a single ultrasound transmitter, the device performance of the Ultrasonic transducer was 2000 watts at 20 kHz.

Verfahrensablauf: Warengeschwindigkeit: 21 m/min.; Behandlungsdauer: 50 min. = 150 Umläufe; eingestellte Ultraschallgeräteleistung: 1800 Watt; Ultraschallenergie an der Abstrahlfläche: 63,7 Watt/cm2; Gewebeabstand zur Abstrahlfläche: ca. 5 mm; Medium: Weichwasser 2 °dH, 40°C.Process sequence: goods speed: 21 m / min .; Treatment duration: 50 min. = 150 rounds; set ultrasound power: 1800 watts; Ultrasonic energy at the radiation area: 63.7 watts / cm 2 ; Fabric distance to the radiation surface: approx. 5 mm; Medium: soft water 2 ° dH, 40 ° C.

Ergebnis: Mit der erfindungsgemäßen Ultraschallbehandlung war das Gewebe deutlich heller und reiner als ohne. Außerdem wurde der sonst für Leinen notwendige alkalische Abkochprozeß überflüssig. Die Holzanteile waren wesentlich weicher und in der Folge besser anfärbbar.Result: With the ultrasound treatment according to the invention, the tissue was significantly lighter and cleaner than without. In addition, the alkaline boiling process, which is otherwise necessary for linen, has become superfluous. The wood parts were much softer and subsequently easier to color.

Schließlich konnte mit der Ultraschallbehandlung bei der Endausrüstung der Weichmacheranteil um 50% reduziert werden, und dies bei gleichem Griffausfall.Finally, the amount of plasticizer in the final equipment could be reduced by 50% with the ultrasonic treatment, and this with the same handle failure.

Claims (20)

  1. Method for the treatment of textile material, especially woven or knitted textile fabric, in which the textile material undergoes direct ultrasonic irradiation in a liquid medium by being guided past the radiating surface of at least one ultrasonic generator, characterized in that the textile material in the form of an endless strand is guided repeatedly through a tube, through which the liquid medium flows and in the wall of which the or each ultrasonic generator is installed with the radiating surface directed into the tube interior.
  2. Method according to Claim 1, characterized in that water serves as the liquid medium.
  3. Method according to Claim 1, characterized in that a dyeing or bleaching liquor serves as the liquid medium.
  4. Method according to Claim 1, characterized in that a finishing liquor serves as the liquid medium.
  5. Method according to one of Claims 1 to 4, characterized in that the textile material is guided past the radiating surface of the ultrasonic generator or ultrasonic generators at a distance of 0 to 20 mm, preferably of 0 to 2 mm.
  6. Method according to one of Claims 1 to 5, characterized in that work is carried out with an ultrasonic energy in the range of 10 to 1000 W/cm2, especially of 50 to 200 W/cm2.
  7. Method according to one of Claims 1 to 6, characterized in that work is carried out with an amplitude range of the ultrasonic waves of 20 to 150 µm.
  8. Apparatus for carrying out the method according to one of Claims 1 to 7, with at least one ultrasonic generator, the radiating surface of which is arranged in a liquid medium, and with a transport device for guiding the textile material past the radiating surface or radiating surfaces, characterized in that the or each ultrasonic generator (5; 25, 25', 25") is installed in the wall of a preferably essentially horizontally arranged tube (4; 24), through which the liquid medium (2; 22) flows, with the radiating surface (11) directed into the tube interior, and in that the textile material (8; 28) in the form of an endless strand can be guided continuously through the tube (4; 24) by means of the transport device (6, 7; 26).
  9. Apparatus according to Claim 8, with a trough containing the liquid medium, characterized in that the tube (4) is submerged in the liquid medium (3) (Figure 1).
  10. Apparatus according to Claim 8, with a container through which the liquid medium flows, characterized in that the tube (24) is formed by a tubular part of the container (21) (Figure 4).
  11. Apparatus according to one of Claims 8 to 10, characterized in that the tube (4) has a reduced cross-section in the region of the ultrasonic generator or ultrasonic generators (5).
  12. Apparatus according to one of Claims 8 to 11, characterized in that the or each ultrasonic generator (5; 25, 25', 25'') is arranged in such a way that its electrical part is located outside the liquid medium (2; 22).
  13. Apparatus according to one of Claims 8 to 12, characterized in that a plurality of ultrasonic generators (25, 25', 25") are arranged in succession in the longitudinal direction of the tube (4) or are distributed over at least part of the tube circumference.
  14. Apparatus according to one of Claims 8 to 13, characterized in that the liquid medium (2; 22) is water.
  15. Apparatus according to one of Claims 8 to 13, characterized in that the liquid medium (2; 22) is a dyeing or bleaching liquor.
  16. Apparatus according to one of Claims 8 to 13, characterized in that the liquid medium (2; 22) is a finishing liquor.
  17. Apparatus according to one of Claims 8 to 16, characterized in that the power of the ultrasonic generator or ultrasonic generators (5; 25, 25', 25") is. adjustable.
  18. Apparatus according to Claim 9, characterized in that the transport speed of the textile material (8) is adjustable preferably in the range of 20 to 100 m/min.
  19. Apparatus according to Claim 10, characterized in that the transport speed of the textile material (28) is adjustable preferably in the range of 100 to 350 m/min.
  20. Use of the method according to one of Claims 1 to 7 for the treatment, especially for the dyeing, of textile threads, especially cotton warp threads, guided in a strand.
EP94890087A 1993-05-18 1994-05-18 Method and apparatus for wet treatment of textile materials with help of ultrasonic waves Expired - Lifetime EP0625606B1 (en)

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AT97593 1993-05-18
AT975/93 1993-05-18

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7674300B2 (en) 2006-12-28 2010-03-09 Kimberly-Clark Worldwide, Inc. Process for dyeing a textile web
US7740666B2 (en) 2006-12-28 2010-06-22 Kimberly-Clark Worldwide, Inc. Process for dyeing a textile web
US8182552B2 (en) 2006-12-28 2012-05-22 Kimberly-Clark Worldwide, Inc. Process for dyeing a textile web
US8632613B2 (en) 2007-12-27 2014-01-21 Kimberly-Clark Worldwide, Inc. Process for applying one or more treatment agents to a textile web

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Publication number Priority date Publication date Assignee Title
DE19913179A1 (en) * 1999-03-24 2000-09-28 Stang Hans Peter Assembly for dyeing/washing textile ribbon materials, has ultrasonic generators to clean the materials of any spinning preparation agents and improve the effect of the liquid dyestuff on the fabric
CN106758134A (en) * 2017-03-23 2017-05-31 宜兴乐威牛仔布有限公司 Tencel elasticity denim ultrasonic wave pretreating device

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Publication number Priority date Publication date Assignee Title
FR1261378A (en) * 1960-04-07 1961-05-19 Improvements to laminated devices which generate sound or ultrasonic vibrations, in particular for industrial treatments of flexible and flat objects, such as for example strips of fabrics
US3712085A (en) * 1971-03-11 1973-01-23 Advanced Patent Technology Inc Ultra-sonic dry-cleaning machine
GB1395288A (en) * 1973-04-07 1975-05-21 Ts Pk I T Bjuro Legkoi Promy Method of wet cleaning of natural fibres from impurities and wool sweat and apparatus for performing this method
DE2712211A1 (en) * 1976-03-23 1977-11-17 Superba Sa METHOD FOR THERMAL AND MECHANICAL TREATMENT OF TEXTILE FIBERS

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7674300B2 (en) 2006-12-28 2010-03-09 Kimberly-Clark Worldwide, Inc. Process for dyeing a textile web
US7740666B2 (en) 2006-12-28 2010-06-22 Kimberly-Clark Worldwide, Inc. Process for dyeing a textile web
US8182552B2 (en) 2006-12-28 2012-05-22 Kimberly-Clark Worldwide, Inc. Process for dyeing a textile web
US8632613B2 (en) 2007-12-27 2014-01-21 Kimberly-Clark Worldwide, Inc. Process for applying one or more treatment agents to a textile web

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EP0625606A1 (en) 1994-11-23
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