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EP0478921A1 - Method and apparatus for the continuous and intensive treatment of textile materials in sheet form - Google Patents

Method and apparatus for the continuous and intensive treatment of textile materials in sheet form Download PDF

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Publication number
EP0478921A1
EP0478921A1 EP91112729A EP91112729A EP0478921A1 EP 0478921 A1 EP0478921 A1 EP 0478921A1 EP 91112729 A EP91112729 A EP 91112729A EP 91112729 A EP91112729 A EP 91112729A EP 0478921 A1 EP0478921 A1 EP 0478921A1
Authority
EP
European Patent Office
Prior art keywords
textile web
drum
follower
adjustable
web
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.)
Granted
Application number
EP91112729A
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German (de)
French (fr)
Other versions
EP0478921B1 (en
Inventor
Dieter Riedel
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.)
Johannes Menschner Maschinenfabrik GmbH and Co KG
Original Assignee
Johannes Menschner Maschinenfabrik GmbH and Co KG
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Publication date
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Publication of EP0478921A1 publication Critical patent/EP0478921A1/en
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Publication of EP0478921B1 publication Critical patent/EP0478921B1/en
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Classifications

    • 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
    • D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
    • D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
    • D06B3/20—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics with means to improve the circulation of the treating material on the surface of the fabric
    • D06B3/201—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics with means to improve the circulation of the treating material on the surface of the fabric the treating material being forced through the textile material
    • D06B3/203—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics with means to improve the circulation of the treating material on the surface of the fabric the treating material being forced through the textile material by suction, e.g. by means of perforated drums
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C2700/00—Finishing or decoration of textile materials, except for bleaching, dyeing, printing, mercerising, washing or fulling
    • D06C2700/13—Steaming or decatising of fabrics or yarns
    • D06C2700/135—Moistening of fabrics or yarns as a complementary treatment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S68/00—Textiles: fluid treating apparatus
    • Y10S68/903—Perforated drum and continuous textile feed and discharge

Definitions

  • the invention relates to a method and an apparatus for the continuous intensive moistening of fabrics, in particular web-shaped textiles and the like. the like
  • the correct and, above all, uniform moisture content of woolen goods or the like is very important, even crucial for fixing processes, in particular to achieve permanent fixing processes in the wet (flat-setting hydroflat fixation) and in the dry state (Permenentdekatur).
  • the fixative is processed in the wet state, i.e. after squeezing the foulard or the like with a residual moisture content of approx. 50-70%, depending on the quality of the foulard or the like.
  • a streak-free and intensively working humidification device that works continuously at a speed of at least 16 - 25 m / min. Goods transport speed that brings the required results does not yet exist.
  • the object of the invention is to demonstrate a method and an apparatus for carrying it out, with which a continuous streak-free intensive moistening of the material to be treated, eg. B. the textile web, the same can be carried out at a comparatively high speed.
  • the textile web is moistened by two continuously moist, permeable followers arranged on both sides thereof, at least one of which exerts compressive forces on the textile web and that the textile web and the two followers one Be subjected to negative pressure treatment.
  • the tensioned idler with a hot, gaseous medium, such as water vapor or hot air.
  • the device for carrying out the method according to the invention has a cylindrical, rotatable drum which can be connected to a vacuum source and has a perforated outer surface against which the one follower rests, the other follower being an endless pressure band which is against the part of the textile web which wraps around the drum creates.
  • the follower which is designed as an endless printing belt, is guided over deflecting rollers, of which at least one deflecting roller can be adjusted and locked in order to change the contact pressure, part of the deflecting rollers being drive rollers for the follower.
  • the drum is immersed in a container filled with water and holding a heating device.
  • the required moisture values (up to 35%) of the goods can be achieved without streaks.
  • the degree of moistening can also be influenced by other parameters, regardless of the speed of the goods. B. from the temperature of the water bath, the level of the water in the container (immersion depth of the drum), the suction volume of the vacuum generator and the amount of steam.
  • Another advantage is that less pressing or finishing effects are lost in the goods due to the wetting under surface pressure than with wetting without surface pressure.
  • the goods under surface pressure are less converted to the raw state because fiber swelling and volume increase are prevented.
  • the amount of moisture offered is pressed into the core of the goods.
  • a permeable follower 2 bears against the jacket of the drum 1, which is a manchon in the embodiment shown.
  • the idler 2 can also be endless and guided over deflection rollers.
  • the textile web is indicated, which is pressed against the follower 2 by means of a further, permeable follower 4 designed as an endless pressure band. This ensures a frictional entrainment of the drum 1 and thus the textile web 3.
  • the contact pressure is generated by means of a controllable deflection roller 5.
  • One of the deflection rollers, namely 6, is the drive roller for the idler 4.
  • the material of the textile web 3 cannot swell, so that the moisture can penetrate into the core of the goods.
  • the drum 1 dips with the textile web 3 and the two followers 2, 4 in one with the dampening liquid, for. B. water, filled container 7, in which a heating device 8 is arranged.
  • the level in the receptacle 7 and the temperature of the heating device 8 are expediently controllable.
  • the rotary movement of the drum 1 in the heated water bath results in a constant moistening of the two idlers 2, 4 and thus inevitably also the textile web 3, the moistening of the idler 4 from the outside and that of the idler 2 from the inside of the drum 1 (wick system) .
  • the cocked follower 4 is with a hot, gaseous medium, for. B. steam or hot air. This is done via one or more steam boxes 9 which emit saturated steam or hot air which is drawn into the drum 1 by the negative pressure through the two idlers 2, 4 and the textile web 3.
  • the steam and the pressurized textile web 3 already produce good moisture contact, which is further strengthened in the further course by sucking in hot moisture. In this way, the textile web 3 becomes more hygroscopic.
  • a closed and internally heated drum 1 is used instead of the perforated because the heat supply makes the textile web 3 more hygroscopic and absorbs the moisture offered by the followers 2, 4 more quickly.
  • the advantage of the perforated drum 1 is essentially that the absorption capacity can be further increased by the more or less pronounced intake quantity.
  • the degree of moistening can be influenced via the amount of suction and the strength of the negative pressure, especially if one assumes that the throughput speed of the textile web 3 is constant.
  • the moistening device according to the invention can be easily carried out with a downstream bear combine processing machines.
  • the driven roller 10 ensures that the textile web to be moistened is fed to the moistening device without tension.
  • a dancer device 11 connected downstream of this roller 10 automatically regulates the drive speed of the roller 10, so that conditions are always constant and ultimately no goods train is produced.
  • a dancer device 12 connected downstream of the moistening device takes over the synchronous control of the textile web 3 for the subsequent processing process.

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

Abstract

The invention relates to a method and an apparatus for carrying it out, according to the pre-characterising clause of Claim 1. <??>The object of the invention is to provide a method and an apparatus for carrying it out, by means of which a continuous streak-free intensive moistening of the article to be treated, for example textile webs and the like, can be carried out at a comparatively high speed of the latter. <??>This object is achieved, by the method according to the invention, in that the textile web (3) is moistened by two continuously moistened permeable backcloths (2, 4) which are arranged on both sides of this and at least one (4) of which exerts compressive forces on the textile web by tension, the textile web and the two backcloths being subjected to vacuum treatment. <??>The apparatus according to the invention is characterised in that there is a cylindrical rotatable drum (1) which can be connected to a vacuum source and has a perforated outer surface and against which one backcloth bears, the other backcloth being an endless pressure band which bears against the part of the textile web looping round the drum.

Description

Die Erfindung bezieht sich auf ein Verfahren bzw. eine Vorrichtung zur kontinuierlichen Intensivbefeuchtung von Flächengebilden, insbesondere bahnförmigen Textilien u. dgl.The invention relates to a method and an apparatus for the continuous intensive moistening of fabrics, in particular web-shaped textiles and the like. the like

Es ist bekannt, daß bei der Verarbeitung von Wollwaren u. dgl. die Feuchtigkeit der Faser eine ausschlaggebende Rolle spielt. So verdanken beispielsweise englische Tuche ihren Weltruf im wesentlichen der Tatsache, daß die an die Wollfaser gebundene Feuchtigkeit etwas größer ist als bei den besten Tuchen deutscher bzw. italienischer Herkunft. Der Grund hierfür liegt in dem überwiegend feuchteren englischen Klima. Aber selbst dort werden durch zunehmende Rationalisierungsmaßnahmen und Produktionssteigerungen die Durchlaufzeiten für die Fertigung immer geringer, da die sonst üblichen Ruhepausen zur Klimatisierung der Wolle fortfallen. Die bereits seit langem eingeschalteten ..künstlichen Erholungspausen", z.B. durch Befeuchtungsmaßnahmen, bringen aber nur zu einem relativ geringen Anteil Erfolge. Die bis heute bekannten Befeuchtungsmethoden erfüllen die gestellten Aufgaben nur unvollkommen, weil die damit erzielte Zerstäubung des Wassers zu grob ist und folglich nur eine Nässung der Stoffoberfläche, keineswegs aber eine innige Verbindung der Feuchtigkeit mit der Wollfaser, insbesondere aber mit deren Kern, u. dgl. stattfindet.It is known that when processing woolen goods u. Like. The moisture of the fiber plays a crucial role. English fabrics, for example, owe their international reputation essentially to the fact that the moisture bound to the wool fiber is somewhat greater than that of the best fabrics of German or Italian origin. The reason for this is the predominantly wetter English climate. But even there, increasing rationalization measures and increases in production mean that the throughput times for production are becoming shorter and shorter, as the usual rest periods for air conditioning the wool are eliminated. However, the long since ... artificial rest breaks ", for example through humidification measures, bring only a relatively small share of success. The humidification methods known to date only fulfill the tasks incompletely because the atomization of the water achieved is too coarse and consequently only a wetting of the fabric surface, but in no way an intimate connection of the moisture with the wool fiber, but especially with its core, etc. takes place.

Die auf dem Markt befindlichen Befeuchtungseinrichtungen arbeiten nach unterschiedlichen Methoden, z. B.:The humidifiers on the market work according to different methods, e.g. B .:

1.) Aufsprühen des Wassers mittels Düsen oder Rotoren:1.) Spraying the water using nozzles or rotors:

Die damit erzielbare Feuchtigkeitszunahme in der Ware ist begrenzt (8 - 12 %). Bei größeren Mengen (oft über 5 %) entstehen bereits ungleiche Effekte. An denjenigen Stellen, an welchen eine Überdeckung der Sprühstrahlen auftritt, werden Streifenbildungen auf der Ware sichtbar. Weitere Probleme entstehen immer wieder durch Kalkablagerungen in den Düsen oder Rotoren.The resulting increase in moisture in the goods is limited (8 - 12%). Larger quantities (often over 5%) already produce uneven effects. In those places where the spray jets are covered, streaking on the goods becomes visible. Limescale deposits in the nozzles or rotors repeatedly cause further problems.

2.) Luftbefeuchtungsgeräte:2.) Humidifiers:

Diese Geräte, z. B. Nebelatoren o. dgl. bringen eine relativ gute Gleichmäßigkeit über die gesamte Warenbreite, wenn geeignete Maschinen mit gleichmäßigem Einsaugvermögen vorhanden sind, die die angebotene Feuchtigkeit durch die Ware hindurchsaugen. Die erzielbaren, effektiven Feuchtewerte sind jedoch auch hierbei relativ gering.These devices, e.g. B. Nebelatoren o. The like. Bring a relatively good uniformity over the entire width of the goods, if suitable machines are available with even suction that suck the moisture offered through the goods. However, the effective moisture values that can be achieved are also relatively low here.

3. ) Geräte zur Befeuchtung der Ware durch Auftragen eines Flüssigkeitsfilmes:3.) Devices for moistening the goods by applying a liquid film:

Diese Geräte sind auch nur bedingt für Woll-oder Wollmischgewebe einsetzbar, weil durch Abriß des Flüssigkeitsfilmes immer wieder Unregelmäßigkeiten beim Pflatschen entstehen (Bilderungen, Flecken, Tropfen, Schlieren o. dgl.).These devices can also only be used to a limited extent for wool or wool blended fabrics, because tearing off the liquid film repeatedly results in irregularities when splashing (formations, stains, drops, streaks or the like).

Der richtige und vor allem gleichmäßige Feuchtegehalt von Wollwaren o. dgl. ist aber ganz wichtig, ja sogar ausschlaggebend für Fixiervorgänge, insbesondere zur Erzielung von permanenten Fixiervorgängen im nassen (Flat-Setting Hydroflachfixierung) sowie im trockenen Zustand (Permenentdekatur). Bei der z. Zt. in der Praxis durchgeführten Hydroflachfixierung verarbeitet man das Fixiergut im nassen Zustand, d.h. nach dem Abquetschvorgang des Foulards o. dgl. bei einem Restfeuchtegehalt von ca. 50-70%, je nach Qualität des Foulards o. dgl.The correct and, above all, uniform moisture content of woolen goods or the like is very important, even crucial for fixing processes, in particular to achieve permanent fixing processes in the wet (flat-setting hydroflat fixation) and in the dry state (Permenentdekatur). In the z. At the moment, hydroflat fixation is carried out in practice, the fixative is processed in the wet state, i.e. after squeezing the foulard or the like with a residual moisture content of approx. 50-70%, depending on the quality of the foulard or the like.

Diese bekannte Methode verursacht hohe Kosten, weil sehr viel Energie zum Trocknen benötigt wird, um die nasse Ware nach dem Fixieren wieder auf Normalfeuchte zu bringen. Wissenschaftliche Untersuchungen haben aber bereits schon vor einigen Jahren eindeutig gezeigt, daß man die besten Fixierwerte, z. B. bei Wollwaren, zwischen 25 und 35 % Feuchtegehalt erzielen kann. Solche Werte lassen sich jedoch - zumindest bis heute - in der Praxis nicht erreichen.This known method causes high costs because a lot of energy is required for drying in order to bring the wet goods back to normal moisture after fixing. However, scientific studies have already clearly shown a few years ago that the best fixation values, e.g. B. in woolen goods, can achieve between 25 and 35% moisture content. However, such values cannot be achieved in practice - at least until today.

Mit totaler Netzung im Wasserbad und anschließendem Abquetschvorgang können im Grenzfall ca. 50 % Feuchtegehalt realisiert werden. Andererseits bringt die Befeuchtung von trockener Ware im Maximum 10 - 12 %, wobei diese Werte lediglich als Momentanwerte angesehen werden müssen. Die Feuchtigkeit geht dabei nicht in die Tiefe der Faser und wird durch Verdunstung an die Umwelt - leider in der Regel noch ungleichmäßig - teilweise wieder abgegeben. Ungleiche Befeuchtungseffekte führen aber zu äquivalent ungleich verlaufenden Fixiereffekten.With total wetting in a water bath and subsequent squeezing process, around 50% moisture content can be achieved in the limit case. On the other hand, the humidification of dry goods brings a maximum of 10 - 12%, whereby these values only have to be regarded as instantaneous values. The moisture does not go into the depth of the fiber and is partly released again due to evaporation into the environment - unfortunately usually still unevenly. However, unequal moistening effects lead to equivalently unequal fixing effects.

Eine streifenfrei und intensiv arbeitende Befeuchtungseinrichtung, die im kontinuierlichen Betrieb bei zumindest 16 - 25 m/min. Warentransportgeschwindigkeit die geforderten Ergebnisse bringt, gibt es derzeit noch nicht.A streak-free and intensively working humidification device that works continuously at a speed of at least 16 - 25 m / min. Goods transport speed that brings the required results does not yet exist.

Hier setzt der Erfindungsgedanke ein. Aufgabe der Erfindung ist es, ein Verfahren sowie eine Vorrichtung zu dessen Durchführung aufzuzeigen, mit welchen eine kontinuierliche streifenfreie Intensivbefeuchtung des zu behandelnden Gutes, z. B. der Textilbahn, bei vergleichsweise hoher Geschwindigkeit derselben durchführbar ist.This is where the idea of the invention begins. The object of the invention is to demonstrate a method and an apparatus for carrying it out, with which a continuous streak-free intensive moistening of the material to be treated, eg. B. the textile web, the same can be carried out at a comparatively high speed.

Diese Aufgabe wird bei dem Verfahren gemäß der Erfindung dadurch gelöst, daß die Textilbahn von zwei beidseitig derselben angeordneten, laufend befeuchteten, durchlässigen Mitläufern befeuchtet wird, von welchen zumindest der eine durch Spannung auf die Textilbahn Druckkräfte ausübt und daß die Textilbahn und die beiden Mitläufer einer Unterdruckbehandlung unterworfen werden.This object is achieved in the method according to the invention in that the textile web is moistened by two continuously moist, permeable followers arranged on both sides thereof, at least one of which exerts compressive forces on the textile web and that the textile web and the two followers one Be subjected to negative pressure treatment.

Dabei wird der gespannte Mitläufer mit einem heißen, gasförmigen Medium, z.B. Wasserdampf oder Heißluft beaufschlagt.Here, the tensioned idler with a hot, gaseous medium, such as water vapor or hot air.

Die Vorrichtung zur Durchführung der erfindungsgemäßen Methode weist eine zylinderförmige, drehbare und an eine Vakuumquelle anschließbare Trommel mit perforierter Mantelfläche auf, gegen welche sich der eine Mitläufer anlegt, wobei der andere Mitläufer ein endloses Druckband ist, welches sich gegen den die Trommel umschlingenden Teil der Textilbahn anlegt.The device for carrying out the method according to the invention has a cylindrical, rotatable drum which can be connected to a vacuum source and has a perforated outer surface against which the one follower rests, the other follower being an endless pressure band which is against the part of the textile web which wraps around the drum creates.

Nach einem weiteren Merkmal der erfindungsgemäßen Vorrichtung ist der als endloses Druckband ausgebildete Mitläufer über Umlenkwalzen geführt, von welchen zur Veränderung der Anpreßkraft zumindest eine Umlenkwalze verstellbar und arretierbar ist, wobei ein Teil der Umlenkwalzen Antriebswalzen für den Mitläufer sind.According to a further feature of the device according to the invention, the follower, which is designed as an endless printing belt, is guided over deflecting rollers, of which at least one deflecting roller can be adjusted and locked in order to change the contact pressure, part of the deflecting rollers being drive rollers for the follower.

Die Trommel taucht dabei in einen mit Wasser gefüllten, eine Heizvorrichtung aufnehmenden Behälter ein.The drum is immersed in a container filled with water and holding a heating device.

Durch den erfindungsgemäßen Vorschlag können die geforderten Feuchtigkeitswerte (bis zu 35 %) der Ware streifenfrei verwirklicht werden. Darüber hinaus kann der Grad der Befeuchtung unabhängig von der Waren-Durchlaufgeschwindigkeit auch von weiteren Parametern beeinflußt werden, z. B. von der Temperatur des Wasserbades, dem Niveau des Wasserstandes im Behälter (Eintauchtiefe der Trommel), vom Einsaugvolumen des Unterdruckerzeugers sowie von der Dampfmenge.With the proposal according to the invention, the required moisture values (up to 35%) of the goods can be achieved without streaks. In addition, the degree of moistening can also be influenced by other parameters, regardless of the speed of the goods. B. from the temperature of the water bath, the level of the water in the container (immersion depth of the drum), the suction volume of the vacuum generator and the amount of steam.

Ein weiterer Vorteil liegt darin, daß durch die Befeuchtung unter Flächendruck weniger Preß-oder Finisheffekte in der Ware verloren gehen als bei einer flächendrucklosen Befeuchtung. Die unter Flächenpressung stehende Ware wird weniger in Richtung Rohzustand verwandelt, weil eine Faserquellung und Volumenzunahme verhindert werden. Die angebotene Feuchtigkeitsmenge wird in den Kern der Ware gepreßt.Another advantage is that less pressing or finishing effects are lost in the goods due to the wetting under surface pressure than with wetting without surface pressure. The goods under surface pressure are less converted to the raw state because fiber swelling and volume increase are prevented. The amount of moisture offered is pressed into the core of the goods.

Weitere Merkmale der Erfindung gehen aus den Unteransprüchen, der nachfolgenden Beschreibung sowie der Zeichnung hervor. Die Zeichnung zeigt einen senkrechten Schnitt durch die Vorrichtung gemäß der Erfindung.Further features of the invention emerge from the subclaims, the following description and the drawing. The drawing shows a vertical section through the device according to the invention.

Mit 1 ist die zylinderförmige, drehbar gelagerte Trommel der Vorrichtung bezeichnet, deren Mantelfläche perforiert ist. Die Trommel 1 ist an eine nicht dargestellte Vakuumquelle, z. B. einen Ablüfter u. dgl. anschließbar. Gegen den Mantel der Trommel 1 legt sich ein durchlässiger Mitläufer 2 an, der bei der dargestellten Ausführungsform ein Manchon ist. Die Erfindung ist aber auf diese besondere Ausführungsform keineswegs beschränkt. Der Mitläufer 2 kann auch endlos ausgebildet und über Umlenkwalzen geführt werden.1 with the cylindrical, rotatably mounted drum of the device is designated, the outer surface of which is perforated. The drum 1 is connected to a vacuum source, not shown, e.g. B. a vent u. Like. Connectable. A permeable follower 2 bears against the jacket of the drum 1, which is a manchon in the embodiment shown. However, the invention is in no way limited to this particular embodiment. The idler 2 can also be endless and guided over deflection rollers.

Mit 3 ist die Textilbahn angedeutet, die gegen den Mitläufer 2 mittels eines weiteren, als endloses Druckband ausgebildeten, durchlässigen Mitläufers 4 angepreßt wird. Hierdurch ist eine kraftschlüssige Mitnahme der Trommel 1 und damit der Textilbahn 3 sichergestellt. Der Anpreßdruck wird mittels einer regelbaren Umlenkwalze 5 erzeugt. Die eine der Umlenkwalzen, nämlich 6, ist Antriebswalze für den Mitläufer 4.With 3 the textile web is indicated, which is pressed against the follower 2 by means of a further, permeable follower 4 designed as an endless pressure band. This ensures a frictional entrainment of the drum 1 and thus the textile web 3. The contact pressure is generated by means of a controllable deflection roller 5. One of the deflection rollers, namely 6, is the drive roller for the idler 4.

Durch den von dem Mitläufer 4 ausgeübten Druck kann das Material der Textilbahn 3 nicht quellen, so daß die Feuchtigkeit in den Kern der Ware eindringen kann.Due to the pressure exerted by the follower 4, the material of the textile web 3 cannot swell, so that the moisture can penetrate into the core of the goods.

Als Folge der laufenden Evakuierung der Trommel 1 werden die Textilbahn 3 und die beiden Mitläufer 2, 4 im Umschlingungsbereich der Trommel 1 einer Unterdruckbehandlung unterworfen.As a result of the ongoing evacuation of the drum 1, the textile web 3 and the two followers 2, 4 are subjected to a vacuum treatment in the wrapping area of the drum 1.

Wie die Zeichnung deutlich macht, taucht die Trommel 1 mit der Textilbahn 3 sowie den beiden Mitläufern 2, 4 in einen mit der Befeuchtungsflüssigkeit, z. B. Wasser, gefüllten Behälter 7 ein, in welchem eine Heizvorrichtung 8 angeordnet ist. Das Niveau im Aufnahmebehälter 7 sowie die Temperatur der Heizvorrichtung 8 sind zweckmäßig regelbar. Durch die Drehbewegung der Trommel 1 im beheizten Wasserbad wird eine ständige Befeuchtung der beiden Mitläufer 2, 4 und damit zwangsläufig auch der Textilbahn 3 erreicht, wobei die Befeuchtung des Mitläufers 4 von außen und diejenige des Mitläufers 2 von innen der Trommel 1 erfolgt (Dochtsystem).As the drawing makes clear, the drum 1 dips with the textile web 3 and the two followers 2, 4 in one with the dampening liquid, for. B. water, filled container 7, in which a heating device 8 is arranged. The level in the receptacle 7 and the temperature of the heating device 8 are expediently controllable. The rotary movement of the drum 1 in the heated water bath results in a constant moistening of the two idlers 2, 4 and thus inevitably also the textile web 3, the moistening of the idler 4 from the outside and that of the idler 2 from the inside of the drum 1 (wick system) .

Der gespannte Mitläufer 4 wird mit einem heißen, gasförmigen Medium, z. B. Wasserdampf oder Heißluft beaufschlagt. Dies geschieht über einen oder mehrere Dämpfkästen 9, welche gesättigten Dampf oder Heißluft ausstoßen, der durch den Unterdruck durch die beiden Mitläufer 2, 4 und die Textilbahn 3 in die Trommel 1 eingezogen wird. Durch den Dampf und die unter Druck stehende Textilbahn 3 ist bereits ein guter Feuchtekontakt hergestellt, der im weiteren Verlaufe durch Einsaugen von heißer Feuchtigkeit noch verstärkt wird. Auf diese Weise wird die Textilbahn 3 hygroskopischer.The cocked follower 4 is with a hot, gaseous medium, for. B. steam or hot air. This is done via one or more steam boxes 9 which emit saturated steam or hot air which is drawn into the drum 1 by the negative pressure through the two idlers 2, 4 and the textile web 3. The steam and the pressurized textile web 3 already produce good moisture contact, which is further strengthened in the further course by sucking in hot moisture. In this way, the textile web 3 becomes more hygroscopic.

In vereinfachter Form ist denkbar, daß anstelle der perforierten eine geschlossene und von innen beheizte Trommel 1 verwendet wird, weil durch die Wärmezufuhr die Textilbahn 3 hygroskopischer wird und die angebotene Feuchte aus den Mitläufern 2, 4 schneller aufnimmt. Der Vorteil der perforierten Trommel 1 liegt im wesentlichen darin, daß durch die mehr oder weniger ausgeprägte Einsaugmenge das Aufnahmevermögen zusätzlich verstärkt werden kann.In a simplified form it is conceivable that a closed and internally heated drum 1 is used instead of the perforated because the heat supply makes the textile web 3 more hygroscopic and absorbs the moisture offered by the followers 2, 4 more quickly. The advantage of the perforated drum 1 is essentially that the absorption capacity can be further increased by the more or less pronounced intake quantity.

Über die Einsaugmenge und die Stärke des Unterdruckes kann der Grad der Befeuchtung beeinflußt werden, namentlich, wenn man davon ausgeht, daß die Durchlaufgeschwindigkeit der Textilbahn 3 konstant ist.The degree of moistening can be influenced via the amount of suction and the strength of the negative pressure, especially if one assumes that the throughput speed of the textile web 3 is constant.

Die erfindungsgemäße Befeuchtungsvorrichtung läßt sich einfach mit nachgeschalteten Bearbeitungsmaschinen kombinieren. So sorgt beispielsweise die angetriebene Walze 10 dafür, daß die zu befeuchtende Textilbahn ohne Zug der Befeuchtungsvorrichtung zugeführt wird. Eine dieser Walze 10 nachgeschalteten Tänzereinrichtung 11 regelt automatisch die Antriebsgeschwindigkeit der Walze 10, so daß stets gleichbleibende Verhältnisse und letztlich kein Warenzug entsteht.The moistening device according to the invention can be easily carried out with a downstream bear combine processing machines. For example, the driven roller 10 ensures that the textile web to be moistened is fed to the moistening device without tension. A dancer device 11 connected downstream of this roller 10 automatically regulates the drive speed of the roller 10, so that conditions are always constant and ultimately no goods train is produced.

Eine der Befeuchtungsvorrichtung nachgeschaltete Tänzereinrichtung 12 übernimmt die Synchronregelung der Textilbahn 3 für den nachfolgenden Bearbeitungsprozeß.A dancer device 12 connected downstream of the moistening device takes over the synchronous control of the textile web 3 for the subsequent processing process.

Es wäre denkbar, Chemikalien zu applizieren, die - im Wasser gelöst - mit der Ware in Verbindung gebracht werden. In diesem Falle würden der Behandlungsflotte lediglich Chemikalien beigemischt werden.It would be conceivable to apply chemicals which - dissolved in water - are associated with the goods. In this case, only chemicals would be added to the treatment fleet.

Claims (12)

1. Verfahren zur kontinuierlichen Intensivbefeuchtung von durchlässigen Flächengebilden, insbesondere bahnförmigen Textilien u. dgl., dadurch gekennzeichnet, daß die Textilbahn (3) von zwei beidseitig derselben angeordneten, laufend befeuchteten, durchlässigen Mitläufern (2, 4) befeuchtet wird, von welchen zumindest der eine (4) durch Spannung auf die Textilbahn (3) Druckkräfte ausübt und daß die Textilbahn (3) und die beiden Mitläufer (2, 4) einer Unterdruckbehandlung unterworfen werden.1. Process for the continuous intensive moistening of permeable fabrics, in particular web-shaped textiles and. Like., characterized in that the textile web (3) is moistened by two, constantly moistened, permeable followers (2, 4) arranged on both sides thereof, at least one of which (4) exerts compressive forces on the textile web (3) and that the textile web (3) and the two followers (2, 4) are subjected to a vacuum treatment. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der gespannte Mitläufer (4) mit einem heißen, gasförmigen Medium, z. B. Wasserdampf oder Heißluft beaufschlagt wird.2. The method according to claim 1, characterized in that the tensioned idler (4) with a hot, gaseous medium, for. B. steam or hot air is applied. 3. Verfahren nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Spannung zumindest des einen Mitläufers (4) regelbar ist.3. The method according to claim 1 and 2, characterized in that the voltage of at least one follower (4) is adjustable. 4. Verfahren nach Anspruch 1 - 3, dadurch gekennzeichnet, daß der Unterdruck und die Temperatur des Befeuchtungsmittels regelbar sind.4. The method according to claim 1-3, characterized in that the negative pressure and the temperature of the humidifier are adjustable. 5. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1 - 4, dadurch gekennzeichnet, daß die Vorrichtung eine zylinderförmige, drehbare und an eine Vakuumquelle anschließbare Trommel (1) mit perforierter Mantelfläche aufweist, gegen welche sich der eine Mitläufer (2) anlegt und daß der andere Mitläufer (4) ein endloses Druckband ist, welches sich gegen den die Trommel (1) umschlingenden Teil der Textilbahn (3) anlegt.5. A device for performing the method according to claim 1-4, characterized in that the device has a cylindrical, rotatable and connectable to a vacuum source drum (1) with a perforated lateral surface against which the one follower (2) bears and that other follower (4) is an endless printing belt, which rests against the part of the textile web (3) that wraps around the drum (1). 6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß der eine Mitläufer (2) ein Manchon ist.6. The device according to claim 5, characterized in that the one follower (2) is a manchon. 7. Vorrichtung nach Anspruch 1 - 6, dadurch gekennzeichnet, daß der als endloses Druckband ausgebildete Mitläufer (4) über Umlenkwalzen geführt ist, von welchen zur Veränderung der Anpreßkraft zumindest eine Umlenkwalze (5) verstellbar und arretierbar ist und eine (6) der Umlenkwalzen die Antriebswalze für den Mitläufer (4) ist.7. The device according to claim 1-6, characterized in that the follower formed as an endless printing belt (4) is guided over deflection rollers, of which at least one deflection roller (5) is adjustable and lockable to change the contact pressure and one (6) of the deflection rollers the drive roller for the idler (4). 8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß die Textilbahn (3) über eine Tänzereinrichtung (11) geführt ist, welche die Geschwindigkeit der einen Antriebswalze (10) regelt.8. The device according to claim 7, characterized in that the textile web (3) is guided via a dancer device (11) which controls the speed of a drive roller (10). 9. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß auf die die Trommel (1) verlassende Textilbahn (3) eine Tänzereinrichtung (12) einwirkt, welche die Synchronregelung für den weiteren Arbeitsgang der Textilbahn (3) übernimmt.9. The device according to claim 7, characterized in that on the drum (1) leaving textile web (3) acts a dancer device (12) which takes over the synchronous control for the further operation of the textile web (3). 10. Vorrichtung nach Anspruch 1- 9, dadurch gekennzeichnet, daß die Trommel (1) in einen mit der Befeuchtungsflüssigkeit, z. B. Wasser gefüllten, eine Heizvorrichtung (8) aufnehmenden Behälter (7) eintaucht.10. The device according to claim 1- 9, characterized in that the drum (1) in a with the dampening liquid, for. B. water-filled, a heater (8) receiving container (7). 11. Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß das Wasserniveau im Behälter (7) und die Temperatur der Heizvorrichtung (8) regelbar sind.11. The device according to claim 10, characterized in that the water level in the container (7) and the temperature of the heating device (8) are adjustable. 12. Vorrichtung nach Anspruch 1 - 11, dadurch gekennzeichnet, daß zur Beaufschlagung des gespannten Mitläufers (4) zumindest ein Dämpfkasten (9) vorgesehen ist.12. The apparatus of claim 1-11, characterized in that at least one damping box (9) is provided for acting on the tensioned idler (4).
EP91112729A 1990-10-02 1991-07-29 Method and apparatus for the continuous and intensive treatment of textile materials in sheet form Expired - Lifetime EP0478921B1 (en)

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DE4031063A DE4031063C2 (en) 1990-10-02 1990-10-02 Device for the continuous intensive moistening of a textile web

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DE4031063A1 (en) 1992-04-09
US5203043A (en) 1993-04-20
JPH04272266A (en) 1992-09-29
DE59108720D1 (en) 1997-07-03
EP0478921B1 (en) 1997-05-28
DE4031063C2 (en) 1996-02-01

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