EP1836339B1 - Device and method for applying a liquid medium to a material web - Google Patents

Device and method for applying a liquid medium to a material web Download PDF

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Publication number
EP1836339B1
EP1836339B1 EP06700396A EP06700396A EP1836339B1 EP 1836339 B1 EP1836339 B1 EP 1836339B1 EP 06700396 A EP06700396 A EP 06700396A EP 06700396 A EP06700396 A EP 06700396A EP 1836339 B1 EP1836339 B1 EP 1836339B1
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EP
European Patent Office
Prior art keywords
material web
application
liquid medium
working surface
led
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Not-in-force
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EP06700396A
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German (de)
French (fr)
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EP1836339A1 (en
Inventor
Dieter Nagel
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SONOTRONIC Nagel GmbH
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SONOTRONIC Nagel GmbH
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Priority claimed from DE102005006519A external-priority patent/DE102005006519A1/en
Priority claimed from DE200520002285 external-priority patent/DE202005002285U1/en
Application filed by SONOTRONIC Nagel GmbH filed Critical SONOTRONIC Nagel GmbH
Publication of EP1836339A1 publication Critical patent/EP1836339A1/en
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Publication of EP1836339B1 publication Critical patent/EP1836339B1/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B19/00—Treatment of textile materials by liquids, gases or vapours, not provided for in groups D06B1/00 - D06B17/00
    • D06B19/0005—Fixing of chemicals, e.g. dyestuffs, on textile materials
    • 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
    • D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
    • D06B1/10—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material
    • D06B1/14—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller
    • 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 device for applying a liquid medium to a material web, which has an applicator, in the reservoir, the liquid medium is received, and a fixing device for fixing the applied to the material web by the application of liquid medium, wherein the fixing device at least one ultrasound unit, by means of which the liquid medium applied to the material web can be subjected to ultrasonic vibrations, and a method for applying a liquid medium to a material web, in which the material web is fed to an application device containing the liquid medium, the liquid medium applied to the material web is fixed in a fixing and the like treated material web is fed to the fixing device and is subjected to ultrasonic vibrations there.
  • a liquid is applied to the nonwoven fabric thus formed before or at the same time as the fibers to be welded contact the contact points so that the liquid covers the fibers at their points of intersection during the application of ultrasound.
  • the color is dried at the crossing points of the fibers and the fabric is thus dyed only at these points of intersection, while the remaining tissue is not dyed.
  • the excess paint is washed out or - to also dry the paint on the non-sonicated areas of the fabric - heat treated.
  • the EP 1 283 294 describes an apparatus and method for thermosetting for the purpose of deforming and / or smoothing the weave and / or fibrous structure of a workpiece, comprising ultrasound means for generating ultrasonic oscillations for incorporation of the thermofixing to deform and / or smooth the weave and / or fibrous structures provides required energy by ultrasonic vibrations, wherein the device comprises an ultrasonic unit, the at least one sonotrode and her opposite by a gap separated an anvil possesses.
  • the fixation of the liquid medium on the material web is carried out by a heat, in particular by steam or in a heat chamber, in which the treated as described above with the liquid medium material web is introduced and must remain therein for a correspondingly long time ,
  • a heat in particular by steam or in a heat chamber
  • the treated as described above with the liquid medium material web is introduced and must remain therein for a correspondingly long time
  • Such padskammem have the disadvantage that they not only have a large amount of space, which leads in a disadvantageous way that the known device build voluminous.
  • Another, still much serious disadvantage of the known procedure is that the heat chambers have a long preheating time and / or need a great cooling time.
  • the known approach also has the disadvantage that it has a relatively high energy consumption, not least in that the heat chamber - as already stated - build voluminous, so that not only the energy is required for a corresponding heat application of the web, for treatment the material web is required, but that, moreover, a large proportion of the total energy required to heat the heating chamber is spent.
  • the ultrasonic unit has a working surface, which is movable by a feed device against a working surface of a counter-bearing opposite her, and that by the feed device, the working surface of the ultrasonic unit under a certain contact pressure against the between the Working surface and an abutment guided material web is pressed in such a way that thereby takes place a vibrating mechanical loading of the material web coated with the liquid medium.
  • the method according to the invention provides that the material web is carried out between an abutment and a working surface of the ultrasound unit and the working surface is pressed by a feed device against the material web such that a vibrating mechanical loading of the material web coated with the liquid medium takes place.
  • the energy input into the fixing device is effected by the ultrasonic vibrations generated by the ultrasound unit.
  • the material web treated with a liquid medium is located between a working surface of the ultrasound unit and an abutment is performed, and that the working surface of the ultrasonic unit is pressed with a certain contact pressure on the web.
  • Such a measure has the advantage that this results in a mechanical loading of the material web coated with the liquid medium.
  • the vibrations of the working surface of the ultrasound unit caused by the ultrasonic vibrations counteract in an advantageous manner also a clamping of the material web clamped between the ultrasound unit and the anvil, so that a further transport of the material web is ensured.
  • an advantageous development of the invention provides that the application device has an application element, by means of which the liquid medium to be applied can be removed from the storage container of the application device and applied to the material web.
  • the application of the liquid medium to the material web to be treated by means of the application element is to be metered much more accurately than is the case in the known processes in which the material web has been passed through a liquid bath.
  • the liquid medium can be applied specifically to the material web, whereby the hitherto unavoidable order of excess medium is prevented or at least reduced.
  • a further advantageous development of the invention provides that the device has a turning device for the material web.
  • Such a measure has the advantage that in this way first a first side of the material web of the applicator and then a second side of the material web of this device can be supplied.
  • a two-sided application of the liquid medium to the material web is possible in an advantageous manner.
  • a further advantageous embodiment of the invention provides that the device has two applicators, which are connected in series, wherein the turning device is arranged between the two applicators.
  • Such a measure has the advantage that it is thereby possible to pressurize the two sides of the material web with different liquid media.
  • This measure is particularly advantageous if the liquid medium is a color, as this can be made in a simple manner, a material web having different colors on its two sides.
  • a further advantageous development of the invention provides that at least one application element of at least one application unit has a contoured surface. This makes it possible in an advantageous manner that also patterns or the like can be applied, so a kind of printing on the web.
  • FIG. 1 a first embodiment of a device 1 for applying a liquid medium to a material web M is shown.
  • the device 1 described is particularly suitable for applying liquid paint F to the material web M.
  • color F will always be used instead of the more general term “liquid medium”, although it will be obvious to those skilled in the art that the following statements are not limited to liquid colors in the narrower sense, but also for the application and / or introduction of other liquid media such as coatings, finishes, etc. validity.
  • FIG. 1 material receiving unit recorded material web M is guided to an applicator 2, in which in a storage container 3, not shown, the applied color F is included.
  • an applicator element 4 is provided which removes the amount of color F to be applied in each case from the reservoir 3 and then applies to the material web M or introduces.
  • the applicator element 4 has a contact roller 5 and a guide roller 5a interacting with it, the material web M being carried out between the two rollers 5, 5a.
  • the contact roller 5 thus rolls the color F removed by it from the storage container 3 onto the material web M.
  • Another advantage of the procedure described now is that it can be used with a higher color concentration, since the measures described allow a precisely metered paint application.
  • the material web M treated in this way is then guided via further deflection rollers 6 to a fixing device 7 of the device 1, in which a fixation of the color F on the material web M is carried out and the dyed material is stabilized thereby.
  • an ultrasound unit 8 is used for this purpose, the ultrasound vibrations of which act on the material web M and thus the color applied to it.
  • the procedure is such that the ultrasound unit 8 has a working surface 9, which is formed by the effective surface of the ultrasound unit 8.
  • the working surface 9 opposite is arranged an abutment 10, wherein the material web M between working surface 9 and abutment 10 is passed.
  • the working surface 9 and the bearing surface of the abutment 10 are designed to be complementary. If, as in the case shown here, a roller is used as an abutment 10, preferably the working surface 9 of the ultrasound unit 8 is designed in a circular arc. But it is also possible to use a newly executed abutment 10. Then it is preferred that the working surface 9 of the ultrasonic unit 8 is plate-shaped.
  • the work surface 9 of the ultrasound unit 8 is of an in FIG. 1 Not shown feed device against the support surface of the thrust bearing 10 and thus pressed against the material web M.
  • the caused by the ultrasonic vibrations vibrating movement of the working surface 9 now not only causes a removal or at least a very strong reduction of the residual moisture of the applied color F, but also results in a good penetration of the material web M with the color F, so that in an advantageous manner and A high color fastness of the dyed material web M described above is given.
  • the energy input into the material web M caused by the ultrasonic vibrations causes the color F to be "glued" to the material web M by the binder.
  • disperse dyes When using disperse dyes causes the Ultraschallbeetzschagung that they penetrate deeper into the tissue of the web, this must but then a post-treatment to fix the disperse dyes are carried out, wherein for fixing a steam at a vapor temperature of about 100 ° C or more (especially in polyamide fibers) or a heat treatment in a heat chamber (especially in polyester fibers) is preferred. This is followed by drying, preferably by ultrasound, circulating air or infra-red exposure.
  • FIG. 2 and 3 shows a second embodiment of a device 1 is shown, whose basic structure corresponds to that of the first embodiment, so that corresponding components provided with the same reference numerals and will not be described in detail.
  • the essential difference between the first and the second embodiment lies in the fact that the second embodiment enables a paint application both on the first side M 'of the material web M and on the opposite side M'.
  • turning device 11 which makes it possible that in a first pass of the material web M by the applicator 2 first an application of paint on the first side M 'of the material web M, that then the material web M by passing through the turning device 11 "reversed” is, so that in a subsequent passage of the material web M thereafter, the second side M "of the material web M is acted upon by the contact roller 5.
  • FIG. 4 Now, a third embodiment is shown, the basic structure again corresponds to that of the second embodiment, so that here also corresponding components provided with the same reference numerals and are not described in detail.
  • the essential difference between the first and the third embodiment consists in the fact that two sonotrode units 8a, 8b are used in the fixing device, which act on the material web M from one side each.

Description

Die Erfindung betrifft eine Vorrichtung zum Aufbringen eines flüssigen Mediums auf eine Materialbahn, die eine Aufbringeinrichtung, in deren Vorratsbehälter das flüssige Medium aufgenommen ist, sowie eine Fixiereinrichtung zum Fixieren des auf die Materialbahn durch die Aufbringung aufgebrachten flüssigen Mediums aufweist, wobei die Fixiereinrichtung mindestens eine Ultraschall einheit aufweist, durch welche das auf der Materialbahn aufgebrachte flüssige Medium mit Ultraschallschwingungen beaufschlagbar ist, sowie ein Verfahren zum Aufbringen eines flüssigen Mediums auf eine Materialbahn, bei dem die Materialbahn einer das aufzubringende, flüssige Medium enthaltenden Aufbringeinrichtung zugeführt, das auf der Materialbahn aufgebrachte flüssige Medium in einer Fixiereinrichtung fixiert wird und die derart behandelte Materialbahn der Fixiereinrichtung zugeführt und dort mit Ultraschallschwingungen beaufschlagt wird.The invention relates to a device for applying a liquid medium to a material web, which has an applicator, in the reservoir, the liquid medium is received, and a fixing device for fixing the applied to the material web by the application of liquid medium, wherein the fixing device at least one ultrasound unit, by means of which the liquid medium applied to the material web can be subjected to ultrasonic vibrations, and a method for applying a liquid medium to a material web, in which the material web is fed to an application device containing the liquid medium, the liquid medium applied to the material web is fixed in a fixing and the like treated material web is fed to the fixing device and is subjected to ultrasonic vibrations there.

Eine derartige Vorrichtung, sowie ein derartiges Verfahren sind aus der US 4,491,60 A bekannt, in der eine Vorrichtung und ein Verfahren mit den Merkmalen der Oberbegriffe der unabhängigen Ansprüche 1 und 8 beschrieben ist. Die in der vorgenannten Druckschrift erläuterte Vorrichtung sowie das dortige offenbarte Verfahren dienen dazu, Fasern eines nicht-gewobenen Gewebes zu verschweißen und zu färben, insbesondere dem Färben nicht-gewobenen Gewebes, das aus mittels Ultraschall punkverschweißter Fasern hergestellt ist. Hierzu werden die Fasern zwischen einer Ultraschalleinheit und einem rotierenden Gegenlager durchgeführt, wobei das rotierende Gegenlager aus einer Rolle mit Kontaktpunkten besteht. Durch die Ultraschallverschweißung der Fasern entsteht ein Gewebe, dessen Fasern an Kreuzungspunkten, die dem Muster der Kontaktpunkte der Rolle des Gegenlagers entsprechen, miteinander verschmolzen sind. Es wird eine Flüssigkeit auf das derart gebildete nichtgewobene Gewebe augetragen, und zwar vor oder zu der gleichen Zeit, wie die zu verschweißenden Fasern die Kontaktpunkte kontaktieren, sodass die Flüssigkeit die Fasern an ihren Kreuzungspunkten während der Beaufschlagung mit Ultraschall bedeckt. Dadurch wird die Farbe an den Kreuzungspunkten der Fasern getrocknet und das Gewebe somit nur an diesen Kreuzungspunkten eingefärbt, während das übrige Gewebe nicht eingefärbt wird. Danach wird in einem weiteren Schritt die überschüssige Farbe ausgewaschen oder - um auch die Farbe an den nicht ultraschallbehandelten Bereichen des Gewebes zu trocknen - wärmebehandelt.Such a device, and such a method are known from US 4,491,60 A in which an apparatus and a method having the features of the preambles of independent claims 1 and 8 are described. The apparatus described in the aforementioned document and the method disclosed therein serve to weld and to dye fibers of a non-woven fabric, in particular the dyeing of non-woven fabric made of ultrasonically punk-welded fibers. For this purpose, the fibers are carried out between an ultrasound unit and a rotating abutment, wherein the rotating abutment consists of a roller with contact points. The ultrasonic welding of the fibers results in a fabric whose fibers are fused together at points of intersection which correspond to the pattern of the contact points of the roller of the anvil. A liquid is applied to the nonwoven fabric thus formed before or at the same time as the fibers to be welded contact the contact points so that the liquid covers the fibers at their points of intersection during the application of ultrasound. As a result, the color is dried at the crossing points of the fibers and the fabric is thus dyed only at these points of intersection, while the remaining tissue is not dyed. Thereafter, in a further step, the excess paint is washed out or - to also dry the paint on the non-sonicated areas of the fabric - heat treated.

Die EP 1 283 294 beschreibt eine Vorrichtung und ein Verfahren zur Thermofixierung zwecks Verformung und/oder Glättung der Web- und/oder Faserstruktur eines Werkstücks, die eine Ultraschalleinrichtung zur Erzeugung von Ultraschallschwingungen zur Einbringung der zur Thermofixierung zur Verformung und/oder Glättung der Web- und/oder Faserstrukturen hergestellten benötigten Energie durch Ultraschallschwingungen bereitstellt, wobei die Vorrichtung eine Ultraschalleinheit aufweist, die mindestens eine Sonotrode und ihr gegenüberliegend durch eine Spalt getrennt einen Amboss besitzt.The EP 1 283 294 describes an apparatus and method for thermosetting for the purpose of deforming and / or smoothing the weave and / or fibrous structure of a workpiece, comprising ultrasound means for generating ultrasonic oscillations for incorporation of the thermofixing to deform and / or smooth the weave and / or fibrous structures provides required energy by ultrasonic vibrations, wherein the device comprises an ultrasonic unit, the at least one sonotrode and her opposite by a gap separated an anvil possesses.

Des weiteren sind Vorrichtungen und Verfahren bekannt, bei denen vorgesehen ist, dass die in einer Materialaufnahmeeinrichtung gespeicherte Materialbahn der Aufbringeinrichtung zugeführt wird, in der ein Auftragen des in einem Vorratsbehälter der Aufbringeinrichtung aufgenommenen flüssigen Mediums auf die Materialbahn erfolgt. Hierzu wird die Materialbahn durch ein Bad des flüssigen Mediums geführt. Um zu verhindern, dass die derart behandelte Materialbahn zuviel flüssiges Medium aus der Aufbringeinrichtung mitnimmt, ist bei der bekannten Vorrichtung und dem bekannten Verfahren vorgesehen, dass über dem das flüssige Medium aufnehmenden Vorratsbehälter der Aufbringeinrichtung Quetschwalzen angeordnet sind, welche die überschüssige Flüssigkeit von der Materialbahn abstreifen und zurück in den Vorratsbehälter führen. Eine derartige Vorgehensweise besitzt den Nachteil, dass hierdurch eine Veränderung der Konsistenz und/oder der Konstanz des im Vorratsbehälter der Aufbringeinrichtung vorhandenen flüssigen Mediums durch das rückgeführte Medium auftritt. Ein weiterer Nachteil der bekannten Vorgehensweise ist darin zu sehen, dass das auf die Materialbahn aufgetragene flüssige Medium eine relativ hohe Restfeuchtigkeit aufweist, die typischerweise zwischen 40-70 % beträgt. Diese bedeutet, dass in der nachfolgenden Fixiereinrichtung das auf die Materialbahn aufgebrachte flüssige Medium stark getrocknet werden muss, um den Auftrag zu stabilisieren.Furthermore, devices and methods are known in which it is provided that the material web stored in a material receiving device is fed to the application device in which the liquid medium received in a reservoir of the application device is applied to the material web. For this purpose, the material web is guided through a bath of the liquid medium. In order to prevent the thus treated web entrains too much liquid medium from the applicator, is provided in the known device and the known method, that over the liquid medium receiving reservoir of the applicator squeezing rollers are arranged, which strip the excess liquid from the web and lead back to the reservoir. Such a procedure has the disadvantage that a change in the consistency and / or the constancy of the liquid medium present in the reservoir of the applicator occurs as a result of the recirculated medium. Another disadvantage of the known procedure is the fact that the liquid medium applied to the material web has a relatively high residual moisture, which is typically between 40-70%. This means that in the subsequent fixing device, the liquid medium applied to the material web must be dried strongly in order to stabilize the application.

Bei den letztgenannten Vorrichtungen und Verfahren wird die Fixierung des flüssigen Mediums auf der Materialbahn durch eine Wärmebeaufschlagung, insbesondere durch Dampf oder in einer Wärmekammer durchgeführt, in welche die wie vorstehend beschrieben mit dem flüssigen Medium behandelte Materialbahn eingebracht wird und darin eine entsprechend lange Zeit verweilen muss. Derartige Wärmekammem besitzen aber den Nachteil, dass sie nicht nur einen hohen Platzbedarf aufweisen, welcher in nachteiliger Art und Weise dazu führt, dass die bekannte Vorrichtung voluminös bauen. Ein weiterer, noch viel gravierender Nachteil der bekannten Vorgehensweise ist, dass die Wärmekammem eine lange Vorwärmzeit und/oder eine große Abkühlzeit benötigen. Dies führt in nachteiliger Art und Weise nicht nur dazu, dass bei einem Defekt, insbesondere bei einem Reißen der Materialbahn in der Wärmekammer, diese zuerst abgekühlt werden muss, bevor es möglich ist, den Defekt zu beheben, insbesondere eine neue Materialbahn in die Heizkammer einzuführen. Vielmehr besitzt die bekannte Vorgehensweise auch den Nachteil, dass sie einen relativ hohen Energieverbrauch aufweist, nicht zuletzt dadurch, dass die Wärmkammer - wie bereits ausgeführt - voluminös bauen, so dass für eine entsprechende Wärmebeaufschlagung der Materialbahn nicht nur die Energie benötigt wird, die zum Behandeln der Materialbahn erforderlich ist, sondern dass darüber hinaus noch ein großer Anteil der benötigten Gesamtenergie zum Aufheizen der Wärmekammer aufzuwenden ist.In the latter devices and methods, the fixation of the liquid medium on the material web is carried out by a heat, in particular by steam or in a heat chamber, in which the treated as described above with the liquid medium material web is introduced and must remain therein for a correspondingly long time , However, such Wärmekammem have the disadvantage that they not only have a large amount of space, which leads in a disadvantageous way that the known device build voluminous. Another, still much serious disadvantage of the known procedure is that the heat chambers have a long preheating time and / or need a great cooling time. This leads disadvantageously not only to the fact that in the case of a defect, in particular when the material web breaks in the heating chamber, it must first be cooled down before it is possible to remedy the defect, in particular to introduce a new material web into the heating chamber , Rather, the known approach also has the disadvantage that it has a relatively high energy consumption, not least in that the heat chamber - as already stated - build voluminous, so that not only the energy is required for a corresponding heat application of the web, for treatment the material web is required, but that, moreover, a large proportion of the total energy required to heat the heating chamber is spent.

Es ist Aufgabe der vorliegenden Erfindung, eine Vorrichtung und ein Verfahren der eingangs genannten Art derart weiterzubilden, dass ein einfacheres Fixieren eines flüssigen Mediums durch Ultraschall auf einer Materialbahn ermöglicht wird.It is an object of the present invention, a device and a method of the type mentioned in such a way that a simpler fixing of a liquid medium is made possible by ultrasound on a material web.

Diese Aufgabe wird durch die erfindungsgemäße Vorrichtung dadurch gelöst, dass dass die Ultraschalleinheit eine Arbeitsfläche aufweist, die von einer Vorschubeinrichtung gegen eine Arbeitsfläche eines ihr gegenüber liegenden Gegenlagers bewegbar ist, und dass durch die Vorschubeinrichtung die Arbeitsfläche der Ultraschalleinheit unter einem bestimmten Anpreßdruck gegen die zwischen der Arbeitsfläche und einem Gegenlager geführte Materialbahn derart pressbar ist, dass hierdurch eine vibrierende mechanische Beaufschlagung der mit dem flüssigem Medium beschichteten Materialbahn erfolgt.This object is achieved by the device according to the invention in that the ultrasonic unit has a working surface, which is movable by a feed device against a working surface of a counter-bearing opposite her, and that by the feed device, the working surface of the ultrasonic unit under a certain contact pressure against the between the Working surface and an abutment guided material web is pressed in such a way that thereby takes place a vibrating mechanical loading of the material web coated with the liquid medium.

Das erfindungsgemäße Verfahren sieht vor, dass die Materialbahn zwischen einem Gegenlager und einer Arbeitsfläche der Ultraschalleinheit durchgeführt wird und die Arbeitsfläche von einer Vorschubeinrichtung derart gegen die Materialbahn gepresst wird, dass eine vibrierende mechanische Beaufschlagung der mit dem flüssigem Medium beschichteten Materialbahn erfolgt.The method according to the invention provides that the material web is carried out between an abutment and a working surface of the ultrasound unit and the working surface is pressed by a feed device against the material web such that a vibrating mechanical loading of the material web coated with the liquid medium takes place.

In vorteilhafter Art und Weise wird der Energieeintrag in die Fixiereinrichtung durch die von der Ultraschalleinheit erzeugten Ultraschallschwingungen bewirkt. Eine derartige Maßnahme besitzt den Vorteil, dass sich eine derartige Vorgehensweise durch einen niedrigen Energieverbrauch auszeichnet, da Heizkammern oder eine Dampfbeaufschlagung nun in der Regel nicht mehr erforderlich oder zumindest deutlich verkürzt sind. Erfindungsgemäß ist hier vorgesehen, dass die mit flüssigem Medium behandelte Materialbahn zwischen einer Arbeitsfläche der Ultraschalleinheit und einem Gegenlager durchgeführt wird, und dass die Arbeitsfläche der Ultraschalleinheit mit einem bestimmten Anpressdruck auf die Materialbahn gepreßt wird. Eine derartige Maßnahme besitzt den Vorteil, dass hierdurch eine mechanische Beaufschlagung der mit dem flüssigen Medium beschichteten Materialbahn erfolgt. Die durch die Ultraschallschwingungen hervorgerufenen Vibrationen der Arbeitsfläche der Ultraschalleinheit wirken in vorteilhafter Art und Weise auch einem Festklemmen der zwischen der Ultraschalleinheit und dem Gegenlager eingespannten Materialbahn entgegen, so dass ein Weitertransport der Materialbahn gewährleistet ist.In an advantageous manner, the energy input into the fixing device is effected by the ultrasonic vibrations generated by the ultrasound unit. Such a measure has the advantage that such a procedure is characterized by low energy consumption, since heating chambers or steaming are now generally no longer necessary or at least significantly shortened. According to the invention, it is provided here that the material web treated with a liquid medium is located between a working surface of the ultrasound unit and an abutment is performed, and that the working surface of the ultrasonic unit is pressed with a certain contact pressure on the web. Such a measure has the advantage that this results in a mechanical loading of the material web coated with the liquid medium. The vibrations of the working surface of the ultrasound unit caused by the ultrasonic vibrations counteract in an advantageous manner also a clamping of the material web clamped between the ultrasound unit and the anvil, so that a further transport of the material web is ensured.

Eine vorteilhafte Weiterbildung der Erfindung sieht vor, dass die Aufbringeinrichtung ein Aufbringelement aufweist, durch welches das aufzubringende flüssige Medium aus dem Vorratsbehälter der Aufbringeinrichtung entnehmbar und auf die Materialbahn aufbringbar ist. Hierdurch wird nun in vorteilhafter Art und Weise erreicht, dass der Auftrag des flüssigen Mediums auf die zu behandelnde Materialbahn mittels des Aufbringelements viel genauer zu dosieren ist als dies bei den bekannten Verfahren, bei denen die Materialbahn durch ein Flüssigkeitsbad geführt wurde, der Fall ist. Hierdurch kann einerseits das flüssige Medium gezielt auf die Materialbahn aufgetragen werden, wodurch der bis jetzt unvermeidliche Auftrag von überschüssigem Medium verhindert oder zumindest reduziert wird. Dies besitzt den Vorteil, dass es nun nicht mehr erforderlich ist, überschüssiges Medium durch Quetschwalzen oder dergleichen von der wie vorstehend beschriebenen behandelten Materialbahn abzuscheiden, so dass in vorteilhafter Art und Weise kein Rückfluß eines derartigen überschüssigen Mediums in den Vorratsbehälter erfolgt, wodurch dessen Konsistenz und Flottenkonstanz nicht negativ beeinflußt wird. Eine weiterer Vorteil der beanspruchten Vorgehensweise liegt darin, dass nach dem Fixiervorgang es nicht oder nurmehr in geringerem Umfang erforderlich ist, überschüssiges Medium auszuwaschen. Die erfindungsgemäßen Maßnahmen zeichnen sich also durch eine hohe Umweltverträglichkeit aus.An advantageous development of the invention provides that the application device has an application element, by means of which the liquid medium to be applied can be removed from the storage container of the application device and applied to the material web. In this way, it is now advantageously achieved that the application of the liquid medium to the material web to be treated by means of the application element is to be metered much more accurately than is the case in the known processes in which the material web has been passed through a liquid bath. In this way, on the one hand, the liquid medium can be applied specifically to the material web, whereby the hitherto unavoidable order of excess medium is prevented or at least reduced. This has the advantage that it is no longer necessary to deposit excess medium by squeezing rollers or the like from the treated material web as described above, so that in an advantageous manner no reflux of such excess medium takes place in the reservoir, whereby its consistency and Fleet constancy is not adversely affected. Another advantage of the claimed procedure is that after fixing it is not or only to a lesser extent necessary to wash out excess medium. The measures according to the invention are thus characterized by a high level of environmental compatibility.

Eine weitere vorteilhafte Weiterbildung der Erfindung sieht vor, dass die Vorrichtung eine Wendeeinrichtung für die Materialbahn aufweist. Eine derartige Maßnahme besitzt den Vorteil, dass hierdurch zuerst eine erste Seite der Materialbahn der Aufbringeinrichtung und danach eine zweite Seite der Materialbahn dieser Einrichtung zugeführt werden kann. Hierdurch ist in vorteilhafter Art und Weise ein beidseitiger Auftrag des flüssigen Mediums auf die Materialbahn möglich.A further advantageous development of the invention provides that the device has a turning device for the material web. Such a measure has the advantage that in this way first a first side of the material web of the applicator and then a second side of the material web of this device can be supplied. As a result, a two-sided application of the liquid medium to the material web is possible in an advantageous manner.

Eine weitere vorteilhafte Weiterbildung der Erfindung sieht vor, dass die Vorrichtung zwei Aufbringeinrichtungen aufweist, die hintereinander geschaltet sind, wobei zwischen den beiden Aufbringeinrichtungen die Wendeeinrichtung angeordnet ist. Eine derartige Maßnahme besitzt den Vorteil, dass es hierdurch möglich ist, die beiden Seiten der Materialbahn mit unterschiedlichen flüssigen Medien zu beaufschlagen. Diese Maßnahme ist insbesondere dann von Vorteil, wenn das flüssige Medium eine Farbe ist, da hierdurch in einfacher Art und Weise eine Materialbahn gefertigt werden kann, die auf ihren beiden Seiten unterschiedliche Farben aufweist.A further advantageous embodiment of the invention provides that the device has two applicators, which are connected in series, wherein the turning device is arranged between the two applicators. Such a measure has the advantage that it is thereby possible to pressurize the two sides of the material web with different liquid media. This measure is particularly advantageous if the liquid medium is a color, as this can be made in a simple manner, a material web having different colors on its two sides.

Eine weitere vorteilhafte Weiterbildung der Erfindung sieht vor, dass mindestens ein Aufbringelement mindestens einer Aufbringeinheit eine konturierte Oberfläche aufweist. Hierdurch wird es in vorteilhafter Art und Weise ermöglicht, dass auch Muster oder dergleichen aufgebracht werden können, also eine Art Drucken auf der Materialbahn.A further advantageous development of the invention provides that at least one application element of at least one application unit has a contoured surface. This makes it possible in an advantageous manner that also patterns or the like can be applied, so a kind of printing on the web.

Weitere vorteilhafte Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche.Further advantageous developments of the invention are the subject of the dependent claims.

Weitere Einzelheiten und Vorteile der Erfindung sind den Ausführungsbeispielen zu entnehmen, die im folgenden anhand der Figuren beschrieben werden. Es zeigen:

Figur 1:
eine schematische Darstellung eines ersten Ausführungsbeispiels,
Figur 2:
eine schematische Darstellung eines zweiten Ausführungsbeispiels,
Figur 3:
eine Ansicht des Ausführungsbeispiels der Figur 2 aus der Richtung II der Figur 2, und
Figur 4:
eine schematische Darstellung eines dritten Ausführungsbeispiels.
Further details and advantages of the invention can be found in the embodiments, which are described below with reference to the figures. Show it:
FIG. 1:
a schematic representation of a first embodiment,
FIG. 2:
a schematic representation of a second embodiment,
FIG. 3:
a view of the embodiment of FIG. 2 from the direction of II FIG. 2 , and
FIG. 4:
a schematic representation of a third embodiment.

In Figur 1 ist nun ein erstes Ausführungsbeispiel einer Vorrichtung 1 zum Aufbringen eines flüssigen Mediums auf eine Materialbahn M dargestellt. Die beschriebene Vorrichtung 1 ist insbesondere zum Aufbringen von flüssiger Farbe F auf die Materialbahn M geeignet. Der einfacheren Darstellung halber wird im folgenden immer von "Farbe F" statt des allgemeineren Begriffs "flüssiges Medium" gesprochen, wobei dem Fachmann aber natürlich klar ersichtlich ist, dass die nachfolgenden Ausführungen nicht ausschließlich auf flüssige Farben im engeren Sinn beschränkt sind, sondern auch für das Auftragen und/oder Einbringen von anderen flüssigen Medien wie Beschichtigungen, Appreturen, etc. Gültigkeit haben.In FIG. 1 Now, a first embodiment of a device 1 for applying a liquid medium to a material web M is shown. The device 1 described is particularly suitable for applying liquid paint F to the material web M. For the sake of simplicity of presentation, the term "color F" will always be used instead of the more general term "liquid medium", although it will be obvious to those skilled in the art that the following statements are not limited to liquid colors in the narrower sense, but also for the application and / or introduction of other liquid media such as coatings, finishes, etc. validity.

Die in einer in Figur 1 nicht gezeigten Materialaufnahmeeinheit aufgenommenen Materialbahn M wird zu einer Aufbringeinrichtung 2 geführt, in der in einem nicht näher dargestellten Vorratsbehälter 3 die aufzubringende Farbe F enthalten ist. Wie aus Figur 1 ersichtlich, ist hierbei vorgesehen, dass der Auftrag der Farbe F auf die Materialbahn M nicht dadurch erfolgt, dass die Materialbahn M unmittelbar durch die im Vorratsbehälter 3 aufgenommene Farbe F geführt wird, sondern dass ein Auftragelement 4 vorgesehen ist, welches die jeweils aufzutragende Menge der Farbe F aus dem Vorratsbehälter 3 entnimmt und dann auf die Materialbahn M aufträgt oder einbringt.The in a FIG. 1 not shown material receiving unit recorded material web M is guided to an applicator 2, in which in a storage container 3, not shown, the applied color F is included. How out FIG. 1 it can be seen here, that the application of the color F to the material web M is not effected by the material web M is performed directly through the recorded in the reservoir 3 color F, but that an applicator element 4 is provided which removes the amount of color F to be applied in each case from the reservoir 3 and then applies to the material web M or introduces.

Im hier beschriebenen Ausführungsbeispiel weist das Auftragelement 4 eine Kontaktwalze 5 und eine mit ihr zusammenwirkende Führungswalze 5a auf, wobei zwischen den beiden Walzen 5, 5a die Materialbahn M durchgeführt wird. Die Kontaktwalze 5 wälzt somit die von ihr aus dem Vorratsbehälter 3 entnommene Farbe F auf die Materialbahn M ab.In the exemplary embodiment described here, the applicator element 4 has a contact roller 5 and a guide roller 5a interacting with it, the material web M being carried out between the two rollers 5, 5a. The contact roller 5 thus rolls the color F removed by it from the storage container 3 onto the material web M.

Eine derartige Vorgehensweise besitzt nun nicht nur den Vorteil, dass hierdurch eine genaue Dosierung der auf die Materialbahn M aufzutragenden Farbe Fermöglicht und derart ein Auftragen von überschüssiger Farbe F verhindert oder zumindest reduziert wird. Vielmehr erlaubt es die beschriebene Vorgehensweise, die Farbe F nur auf einer Seite M' der Materialbahn M aufzutragen, so dass es in vorteilhafter Art und Weise möglich ist, mit der beschriebenen Vorgehensweise Materialbahnen herzustellen, die auf ihren beiden Seiten unterschiedliche Farben aufweisen. Dies war bis jetzt mit den bekannten Vorrichtungen, bei denen die Materialbahn durch ein Farbbad bewegt wurden, nicht möglich.Such a procedure now not only has the advantage that this allows a precise metering of the paint to be applied to the material web M F and thus prevents or at least reduces the application of excess paint F. Rather, it allows the procedure described to apply the color F only on one side M 'of the material web M, so that it is possible in an advantageous manner, with the described procedure to produce webs having different colors on both sides. This has not been possible with the known devices in which the web has been moved through a dye bath.

Ein weiterer Vorteil der beschriebenen Vorgehensweise besteht nun darin, dass mit einer höheren Farbkonzentration gearbeitet werden kann, da die beschriebenen Maßnahmen einen genau dosierten Farbauftrag ermöglichen.Another advantage of the procedure described now is that it can be used with a higher color concentration, since the measures described allow a precisely metered paint application.

Die derart behandelte Materialbahn M wird dann über weitere Umlenkrollen 6 zu einer Fixiereinrichtung 7 der Vorrichtung 1 geführt, in der eine Fixierung der Farbe F auf der Materialbahn M durchgeführt und das Färbgut dadurch stabilisiert wird. In vorteilhafter Art und Weise wird hierzu eine Ultraschalleinheit 8 verwendet, deren Ultraschallschwingungen die Materialbahn M und somit die auf ihr aufgebrachte Farbe beaufschlagen.The material web M treated in this way is then guided via further deflection rollers 6 to a fixing device 7 of the device 1, in which a fixation of the color F on the material web M is carried out and the dyed material is stabilized thereby. In an advantageous manner, an ultrasound unit 8 is used for this purpose, the ultrasound vibrations of which act on the material web M and thus the color applied to it.

Bevorzugterweise wird hierbei derart vorgegangen, dass die Ultraschalleinheit 8 eine Arbeitsfläche 9 aufweist, welche durch die wirksame Oberfläche der Ultraschalleinheit 8 ausgebildet ist. Der Arbeitsfläche 9 gegenüberliegend ist ein Gegenlager 10 angeordnet, wobei die Materialbahn M zwischen Arbeitsfläche 9 und Gegenlager 10 hindurchgeführt wird. Um nun eine möglichst große Überlappung zwischen Arbeitsfläche 9 und Gegenlager 10 zu erreichen, ist vorgesehen, dass die Arbeitsfläche 9 und die Auflagefläche des Gegenlagers 10 komplementär ausgeführt sind. Wird - wie im hier gezeigten Fall - als Gegenlager 10 eine Rolle verwendet, so wird vorzugsweise die Arbeitsfläche 9 der Ultraschalleinheit 8 kreisbogenförmig ausgeführt. Es ist aber auch möglich, ein eben ausgeführtes Gegenlager 10 zu verwenden. Dann wird bevorzugt, dass die Arbeitsfläche 9 der Ultraschalleinheit 8 plattenförmig ausgebildet ist.Preferably, in this case, the procedure is such that the ultrasound unit 8 has a working surface 9, which is formed by the effective surface of the ultrasound unit 8. The working surface 9 opposite is arranged an abutment 10, wherein the material web M between working surface 9 and abutment 10 is passed. In order to achieve the greatest possible overlap between the working surface 9 and the abutment 10, it is provided that the working surface 9 and the bearing surface of the abutment 10 are designed to be complementary. If, as in the case shown here, a roller is used as an abutment 10, preferably the working surface 9 of the ultrasound unit 8 is designed in a circular arc. But it is also possible to use a newly executed abutment 10. Then it is preferred that the working surface 9 of the ultrasonic unit 8 is plate-shaped.

Die Arbeitsfläche 9 der Ultraschalleinheit 8 wird von einer in Figur 1 nicht gezeigten Vorschubeinrichtung gegen die Auflagefläche des Gegenlagers 10 und somit gegen die Materialbahn M gepreßt. Die durch die Ultraschallschwingungen hervorgerufene vibrierende Bewegung der Arbeitsfläche 9 bewirkt nun nicht nur eine Entfernung oder zumindest eine sehr starke Reduzierung der Restfeuchte der auftragenen Farbe F, sondern resultiert auch in einer guten Durchdringung der Materialbahn M mit der Farbe F, so dass in vorteilhafter Art und Weise eine hohe Farbechtheit der wie vorstehend beschriebenen eingefärbten Materialbahn M gegeben ist.The work surface 9 of the ultrasound unit 8 is of an in FIG. 1 Not shown feed device against the support surface of the thrust bearing 10 and thus pressed against the material web M. The caused by the ultrasonic vibrations vibrating movement of the working surface 9 now not only causes a removal or at least a very strong reduction of the residual moisture of the applied color F, but also results in a good penetration of the material web M with the color F, so that in an advantageous manner and A high color fastness of the dyed material web M described above is given.

Wird als Farbe F eine Pigmentfarbe mit einem Bindemittel verwendet, so bewirkt der durch die Ultraschallschwingungen hervorgerufene Energieeintrag in die Materialbahn M, dass die Farbe F über das Bindemittel an die Materialbahn M "angeklebt" wird.If a pigment color with a binder is used as the color F, the energy input into the material web M caused by the ultrasonic vibrations causes the color F to be "glued" to the material web M by the binder.

Bei einer Verwendung von Dispersfarben bewirkt die Ultraschallbeaufschagung, dass diese tiefer in das Gewebe der Materialbahn hineindringen, hierbei muß aber dann eine Nachbehandlung zur Fixierung der Dispersfarben durchgeführt werden, wobei zur Fixierung eine Dampfbeaufschlagung mit einer Dampftemperatur von etwa 100° C oder mehr (insbesondere bei Polyamid-Fasern) oder eine Wärmebehandlung in einer Wärmekammer (insbesondere bei PolyesterFasern) bevorzugt wird. Danach erfolgt eine Trocknung, vorzugsweise durch Ultraschall, Umluft oder Infrarot-Beaufschlagung.When using disperse dyes causes the Ultraschallbeaufschagung that they penetrate deeper into the tissue of the web, this must but then a post-treatment to fix the disperse dyes are carried out, wherein for fixing a steam at a vapor temperature of about 100 ° C or more (especially in polyamide fibers) or a heat treatment in a heat chamber (especially in polyester fibers) is preferred. This is followed by drying, preferably by ultrasound, circulating air or infra-red exposure.

In den Figuren 2 und 3 ist ein zweites Ausführungsbeispiel einer Vorrichtung 1 dargestellt, dessen prinzipieller Aufbau demjenigen des ersten Ausführungsbeispiels entspricht, so dass einander entsprechende Bauteile mit den gleichen Bezugsziffern versehen und nicht mehr näher beschrieben werden. Der wesentliche Unterschied zwischen dem ersten und dem zweiten Ausführungsbeispiel liegt nun darin, dass das zweite Ausführungsbeispiel einen Farbauftrag sowohl auf der ersten Seite M' der Materialbahn M als auch auf deren gegenüberliegenden Seite M' ermöglicht. Hierzu ist vorgesehen, dass die Vorrichtung 1 die in Figur 3 schematisch dargestellte Wendeeinrichtung 11 aufweist, die es ermöglicht, dass in einem ersten Durchlauf der Materialbahn M durch die Aufbringeinrichtung 2 zuerst ein Farbauftrag auf die erste Seite M' der Materialbahn M erfolgt, dass dann die Materialbahn M durch ein Durchlaufen der Wendeeinrichtung 11 "umgedreht" wird, so dass bei einem darauffolgenden Durchlauf der Materialbahn M danach die zweite Seite M" der Materialbahn M von der Kontaktwalze 5 beaufschlagt wird.In the Figures 2 and 3 shows a second embodiment of a device 1 is shown, whose basic structure corresponds to that of the first embodiment, so that corresponding components provided with the same reference numerals and will not be described in detail. The essential difference between the first and the second embodiment lies in the fact that the second embodiment enables a paint application both on the first side M 'of the material web M and on the opposite side M'. For this purpose, it is provided that the device 1, the in FIG. 3 schematically shown turning device 11, which makes it possible that in a first pass of the material web M by the applicator 2 first an application of paint on the first side M 'of the material web M, that then the material web M by passing through the turning device 11 "reversed" is, so that in a subsequent passage of the material web M thereafter, the second side M "of the material web M is acted upon by the contact roller 5.

In Figur 4 ist nun ein drittes Ausführungsbeispiel dargestellt, dessen Grundaufbau wiederum demjenigen des zweiten Ausführungsbeispiels entspricht, so dass auch hier einander entsprechende Bauteile mit gleichen Bezugszeichen versehen und nicht mehr näher beschrieben sind. Der wesentliche Unterschied zwischen dem ersten und dem dritten Ausführungsbeispiel besteht nun darin, dass bei der Fixiereinrichtung zwei Sonotrodeneinheiten 8a, 8b verwendet werden, die die Materialbahn M von je einer Seite beaufschlagen.In FIG. 4 Now, a third embodiment is shown, the basic structure again corresponds to that of the second embodiment, so that here also corresponding components provided with the same reference numerals and are not described in detail. The essential difference between the first and the third embodiment consists in the fact that two sonotrode units 8a, 8b are used in the fixing device, which act on the material web M from one side each.

Selbstverständlich ist es aber natürlich auch möglich, dass auch beim dritten Ausführungsbeispiel nur ein einseitiger Farbauftrag durchgeführt wird, in dem beim dritten Ausführungsbeispiel die Wendeeinrichtung 11 nicht verwendet wird.Of course, it is of course also possible that even in the third embodiment, only a one-sided inking is performed, in which in the third embodiment, the turning device 11 is not used.

Claims (11)

  1. Device for applying a liquid medium to a material web (M), having an application device (2), in the storage container (3) of which the liquid medium is contained, as well as a fixation device (7) for fixing the liquid medium (F) applied to the material web (M) by means of the application device (2), the fixation device (7) having at least one ultrasonic unit (8; 8a, 8b), through which the liquid medium (F) applied the material web (M) can be exposed to ultrasonic vibrations, characterized in that the ultrasonic unit (8; 8a, 8b) has a working surface (9), which is movable by means of a feeding device against the working surface of a oppositely provided counter bearing (10), and that by means of the feeding device the working surface (9) of the ultrasonic unit (8; 8a, 8b) can be pressed with a certain pressure against the material web (M) led between the working surface (9) and the counter bearing (10) in such a way that a vibrating mechanical impact on the material web (M) coated with the liquid medium is achieved.
  2. Device according to claim 1, characterized in that the application device (2) has got an application element (4), by which the liquid medium (F) to be applied can be taken from the storage container (3) of the application device (2) and can be applied the material web (M).
  3. Device according to claim 2, characterized in that the application element (4) has got a contact roll (5), which immerses into the storage container (3) and acts upon the material web (M).
  4. Device according to one of the previous claims, characterized in that the device contains a turning device (11) for the material web (M), so that in a first passage of the material web (M) through the application device (2) a first surface (M') of the material web (M) is brought to the application element (4), and that after passing the turning device (11) a second surface (M") of the material web (M) is brought to the application element (4) of the application device (2).
  5. Device according to one of the previous claims, characterized in that the device has got at least two application devices (2), which are arranged in series in the feeding direction of the material web (M), and that between at least two application devices (2) a turning device (11) is provided.
  6. Device according to one of the previous claims, characterized in that the fixation device (7) has got at least two ultrasonic units (8a, 8b).
  7. Device according to one of the previous claims, characterized in that at least one application element (4) of an application device (2) has got a contoured surface.
  8. Method for the application of a liquid material onto a material web (M), in which the material web (M) is led to an application device (2) having a storage container (3) for the liquid medium (F) to be applied, that the liquid medium (F) applied to the material web (M) is fixed in a fixation device (7), and that the material web (M) treated in this way is led to the fixation device (7) and is there acted upon by ultrasonic vibrations, characterized in that the material web (M) is led between a counter bearing (10) and a working surface (9) of the ultrasonic unit, and that the working surface (9) is pressed by means of a feeding device in such a way against the material web (M) that a vibrating mechanical impact in the material web (M) coated with the liquid medium is achieved.
  9. Method according to claim 8, characterized in that the material web (M) to be treated and being led to the application device (2) is acted upon by an application element (4) of the application device (2), which takes the liquid medium out of the storage container (3) and applies it to the material web (M).
  10. Method according to claim 8, characterized in that the material web (M) is led to a turning device (11), so that in a first passage of the material web (M) through the application device (2) a first surface (M') of the material web (M) is lead to the application element (4), and that, after passing the turning device (11), a second surface (M") of the material web (M) is lead to the application element (4).
  11. Method according to claim 10, characterized in that the turning device (11) is provided in the direction of feed of the material web (M) between two application devices (2) arranged in series.
EP06700396A 2005-01-14 2006-01-12 Device and method for applying a liquid medium to a material web Not-in-force EP1836339B1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE202005000678 2005-01-14
DE102005002101 2005-01-14
DE102005006519A DE102005006519A1 (en) 2005-01-14 2005-02-14 Fixing of liquid applied to continuous material, e.g. setting liquid dye on fabric, involves passing material though an ultra-sound unit
DE200520002285 DE202005002285U1 (en) 2005-01-14 2005-02-14 Fluid application device for material web has fixing device with at least one ultrasound unit to act on fluid
PCT/EP2006/000206 WO2006074921A1 (en) 2005-01-14 2006-01-12 Device and method for applying a liquid medium to a material web

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EP1836339A1 EP1836339A1 (en) 2007-09-26
EP1836339B1 true EP1836339B1 (en) 2010-03-17

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WO2006074921A1 (en) 2006-07-20

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