EP0725178B1 - Method and device for drying and shrinking of textile fabric - Google Patents

Method and device for drying and shrinking of textile fabric Download PDF

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Publication number
EP0725178B1
EP0725178B1 EP95810058A EP95810058A EP0725178B1 EP 0725178 B1 EP0725178 B1 EP 0725178B1 EP 95810058 A EP95810058 A EP 95810058A EP 95810058 A EP95810058 A EP 95810058A EP 0725178 B1 EP0725178 B1 EP 0725178B1
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EP
European Patent Office
Prior art keywords
web
channel
tenter frame
treated
guide
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Expired - Lifetime
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EP95810058A
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German (de)
French (fr)
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EP0725178B2 (en
EP0725178A1 (en
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Kurt Dr. Müller
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Individual
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Individual
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Application filed by Individual filed Critical Individual
Priority to ES95810058T priority Critical patent/ES2126862T3/en
Priority to EP95810058A priority patent/EP0725178B2/en
Priority to DE59504261T priority patent/DE59504261D1/en
Priority to EP95810185A priority patent/EP0733733A1/en
Priority to TW85100532A priority patent/TW313605B/zh
Priority to BR9600262A priority patent/BR9600262A/en
Priority to CZ96283A priority patent/CZ28396A3/en
Priority to TR96/00078A priority patent/TR199600078A1/en
Priority to RU96101793A priority patent/RU2139378C1/en
Priority to CN96101103A priority patent/CN1083030C/en
Priority to JP8014543A priority patent/JPH08232163A/en
Priority to US08/594,912 priority patent/US5943747A/en
Priority to CA002181962A priority patent/CA2181962C/en
Priority claimed from AU60828/96A external-priority patent/AU719339B2/en
Publication of EP0725178A1 publication Critical patent/EP0725178A1/en
Publication of EP0725178B1 publication Critical patent/EP0725178B1/en
Application granted granted Critical
Priority to GR990400416T priority patent/GR3029330T3/en
Publication of EP0725178B2 publication Critical patent/EP0725178B2/en
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Expired - Lifetime legal-status Critical Current

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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06CFINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C7/00Heating or cooling textile fabrics
    • D06C7/02Setting

Definitions

  • the invention relates to a method for continuous Drying and shrinking textile mesh or Woven goods, whereby the wet goods to be treated within one between at least two endless, air-permeable guide bands Flow channel for drying on both sides through at least one opposite to each other, against each other to and offset hot air nozzles facing each other formed drying station leads, the one to goods to be treated with lead on an endless, in the blowing direction at a distance through the flow channel forward moving tenter attached and so laterally fixed by the drying station leads, so that the goods to be treated in the respective Blow area of a single hot air nozzle temporarily on the guide belt facing away from the latter to the system comes, as well as a device for performing this Procedure.
  • a method of the type mentioned is from DE-A-29 27 974 (preamble of independent claims 1 and 9) is known. With this procedure, that is Textile to be treated in both longitudinal and in Lateral and loose or cam-like or hill-shaped passed through the drying station. According to the prior art has not been recognized to achieve the lower and / or that of the shrink effect upper guide belt faster than the tenter chain have to be moved forward.
  • Another, out EP-A-148 113 previously known method is the one to be treated Textile goods also in both longitudinal and transversely loosely within one between two endlessly running guide bands formed guide channel in wave form through two drying stations passed through. With these two previously known methods is the width of the goods treated in this way the loose management of the same during the Treatment process uneven.
  • the object of the present invention is to create a process in which with simultaneous improvement the residual shrinkage values an improved dimensional accuracy the treated web is reached.
  • the invention further relates to a device according to claim 9 for performing the inventive Procedure.
  • the one to be treated is carried out moist web 1 within a between two endless, air-permeable guide bands 2 and 3 formed through channel 4 to both sides Loading and drying by three successive, drying stations designed in a known manner 5,6 and 7.
  • drying stations 5, 6 and 7 are known Way with laterally spaced, against the Flow channel 4 to directed hot air slot nozzles 8 or 9 provided, which are transverse to the direction of transport D of the tissue web 1 to be treated via the extend the entire width of the two guide bands 2 and 3.
  • Hot air is applied to the patient to be treated Goods web 1 via the air filter 10 and the Heat exchanger 11 sucked in by the fans 12 and reheated the respective hot air nozzles 8 and 9 fed.
  • the width expansion device A as can be seen from FIG. 3, in a known manner with two revolving, between them grooved rollers 14 forming an expansion gap and 15 provided. After this width stretching device A is the web 1 over several spreading rollers Needling unit B supplied.
  • the endless revolving Clamping frame 13 one for lateral fixation of the web 1 to be treated provided with needles 16 and 17, formed by an endless chain on the left and right-hand web holder 18 or 19 on whose orbital speed to align the The weft direction is individually controllable it is crucial that the guide belts 2.3 faster be moved forward than the medium speed of the two web supports 18 and 19.
  • the two web brackets 18 and 19 to adjust the Tenter frame 13 to a certain web width in lateral direction E adjustable.
  • the guide and cover channel 20 is vertical Direction on the upper and lower guide bands 2 and 3 supported, and in contact with the latter Passing 21 and 22 with friction reducing Material such as Teflon®, coated.
  • the weft direction or the stitches on a perpendicular to the longitudinal direction of the web align the straight line, and / or seen across the web width to achieve a more homogeneous end product
  • the Blow strength and the angle of inclination ⁇ are such to coordinate with each other that no essential in operation Displacement of the two guide bands 2 and 3 fabric web areas lying in places.

Description

Die Erfindung betrifft ein Verfahren zum kontinuierlichen Trocknen und Krumpfen von textiler Maschen- oder Webware, wobei man die zu behandelnde feuchte Ware innerhalb eines zwischen mindestens zwei endlos umlaufenden, luftdurchlässigen Führungsbändern gebildeten Durchlaufkanals zur beidseitigen Trocknung durch mindestens eine von einander gegenüberliegenden, gegeneinander zu und versetzt zueinander gerichteten Heissluftdüsen gebildete Trocknungsstation führt, wobei man die zu behandelnde Ware mit Voreilung auf einem endlos umlaufenden, in Blasrichtung mit Abstand durch den Durchlaufkanal vorwartsbewegten Spannrahmen befestigt und derart seitlich fixiert durch die Trocknungsstation führt, so dass die zu behandelnde Ware im jeweiligen Blasbereich einer einzelnen Heissluftdüse vorübergehend am von der letzteren abgewandten Führungsband zur Anlage kommt, sowie eine Vorrichtung zur Durchführung dieses Verfahrens.The invention relates to a method for continuous Drying and shrinking textile mesh or Woven goods, whereby the wet goods to be treated within one between at least two endless, air-permeable guide bands Flow channel for drying on both sides through at least one opposite to each other, against each other to and offset hot air nozzles facing each other formed drying station leads, the one to goods to be treated with lead on an endless, in the blowing direction at a distance through the flow channel forward moving tenter attached and so laterally fixed by the drying station leads, so that the goods to be treated in the respective Blow area of a single hot air nozzle temporarily on the guide belt facing away from the latter to the system comes, as well as a device for performing this Procedure.

Ein Verfahren der eingangs genannten Art ist aus der DE-A-29 27 974 (Oberbegriff der unabhängigen Ansprüchen 1 und 9) bekannt. Bei diesem Verfahren wird das zu behandelnde Textilgut sowohl in Längs- als auch in Querrichtung locker und nockenbrettartig oder hügelförmig durch die Trockenstation hindurchgeführt. Gemäss dem Stand der Technik wurde nicht erkannt, dass zur Erzielung des Krumpfeffektes das untere und/oder das obere Führungsband schneller als die Spannrahmenkette vorwärts bewegt werden müssen. Bei einem anderen, aus der EP-A-148 113 vorbekannten Verfahren wird das zu behandelnde Textilgut ebenfalls sowohl in Längs- als auch in Querrichtung locker innerhalb eines zwischen zwei endlos umlaufenden Führungsbändern gebildeten Führungskanals in Wellenform durch zwei Trocknungsstationen hindurchgeführt. Bei diesen beiden vorbekannten Verfahren ist die Breite der derart behandelten Ware infolge der allseitig lockeren Führung derselben während dem Behandlungsvorgang ungleichmässig.A method of the type mentioned is from DE-A-29 27 974 (preamble of independent claims 1 and 9) is known. With this procedure, that is Textile to be treated in both longitudinal and in Lateral and loose or cam-like or hill-shaped passed through the drying station. According to the prior art has not been recognized to achieve the lower and / or that of the shrink effect upper guide belt faster than the tenter chain have to be moved forward. Another, out EP-A-148 113 previously known method is the one to be treated Textile goods also in both longitudinal and transversely loosely within one between two endlessly running guide bands formed guide channel in wave form through two drying stations passed through. With these two previously known methods is the width of the goods treated in this way the loose management of the same during the Treatment process uneven.

Aufgabe der vorliegenden Erfindung ist die Schaffung eines Verfahrens bei welchem unter gleichzeitiger Verbesserung der Restschrumpfwerte eine verbesserte Formgenauigkeit der behandelten Warenbahn erreicht wird.The object of the present invention is to create a process in which with simultaneous improvement the residual shrinkage values an improved dimensional accuracy the treated web is reached.

Diese Aufgabe wird erfindungsgemäss nach Anspruch 1 gelöst.According to the invention, this object is achieved according to claim 1.

Vorteilhafte Weiterausgestaltungen des erfindungsgemässen Verfahrens sind Gegenstand der Ansprüche 2 bis 8.Advantageous further developments of the invention Procedures are the subject of claims 2 to 8.

Gegenstand der Erfindung ist ferner eine Vorrichtung nach Anspruch 9 zur Durchführung des erfindungsgemässen Verfahrens. The invention further relates to a device according to claim 9 for performing the inventive Procedure.

Vorteilhafte Weiterausgestaltungen der erfindungsgemässen Vorrichtung sind Gegenstand der Ansprüche 11 bis 14.Advantageous further developments of the invention Device are the subject of claims 11 to 14.

Nachstehend wird die Erfindung anhand der Zeichnung beispielsweise erläutert. Es zeigt

  • Fig. 1 einen Längsschnitt durch eine beispielsweise Ausführungsform einer erfindungsgemässen Vorrichtung;
  • Fig. 2 in größerem Maßstab einen Schnitt längs der Linie II-II in perspektivischer Darstellung;
  • Fig. 3 in größerem Maßstab eine perspektivische Ansicht der Warenbahn-Breitdehnvorrichtung A in Figur 1;
  • Fig. 4 schematisch eine Draufsicht auf die oberen Trums einer unteren Führungsbandeinheit einer zweiten beispielsweisen Ausführungsform einer erfindungsgemässen Vorrichtung;
  • Fig. 5 schematisch eine perspektivische Ansicht einer die gleichmäßige Verschmälerung der Warenbahn unterstützenden Warenbahn-Abstütz- und Transporteinheit;
  • Fig.6 schematisch eine Seitenansicht einer weiteren beispielsweisen Ausführungsform der Führungsbandeinheiten einer erfindungsgemässen Vorrichtung; und
  • Fig. 7 in größerem Maßstab einen Querschnitt durch eine spezielle Ausführungsform der Heissluftdüsen.
  • The invention is explained below with reference to the drawing, for example. It shows
  • 1 shows a longitudinal section through an example embodiment of a device according to the invention.
  • Figure 2 on a larger scale a section along the line II-II in perspective.
  • 3 shows a perspective view on a larger scale of the web stretching device A in FIG. 1;
  • 4 schematically shows a top view of the upper runs of a lower guide belt unit of a second exemplary embodiment of a device according to the invention;
  • 5 schematically shows a perspective view of a web support and transport unit that supports the uniform narrowing of the web;
  • 6 schematically shows a side view of a further exemplary embodiment of the guide belt units of a device according to the invention; and
  • Fig. 7 on a larger scale a cross section through a special embodiment of the hot air nozzles.
  • Wie aus Figur 1 ersichtlich, führt man die zu behandelnde feuchte Warenbahn 1 innerhalb eines zwischen zwei endlos umlaufenden, luftdurchlässigen Führungsbändern 2 und 3 gebildeten Durchlaufkanals 4 zur beidseitigen Beaufschlagung und Trocknung durch drei aufeinanderfolgende, auf bekannte Weise ausgebildete Trocknungsstationen 5,6 und 7.As can be seen from FIG. 1, the one to be treated is carried out moist web 1 within a between two endless, air-permeable guide bands 2 and 3 formed through channel 4 to both sides Loading and drying by three successive, drying stations designed in a known manner 5,6 and 7.

    Diese Trocknungsstationen 5,6 und 7 sind auf bekannte Weise mit seitlich voneinander distanzierten, gegen den Durchlaufkanal 4 zu gerichteten Heissluft-Schlitzdüsen 8 respektive 9 versehen, die sich quer zur Transportrichtung D der zu behandelnden Gewebebahn 1 über die gesamte Breite der beiden Führungsbänder 2 bzw. 3 erstrecken.These drying stations 5, 6 and 7 are known Way with laterally spaced, against the Flow channel 4 to directed hot air slot nozzles 8 or 9 provided, which are transverse to the direction of transport D of the tissue web 1 to be treated via the extend the entire width of the two guide bands 2 and 3.

    Die über die Heissluft-Schlitzdüsen 8 und 9 austretende Heißluft wird nach erfolgter Einwirkung auf die zu behandelnde Warenbahn 1 über die Luftfilter 10 und die Wärmeaustauscher 11 von den Ventilatoren 12 angesaugt und erneut aufgeheizt den jeweiligen Heissluftdüsen 8 und 9 zugeführt.The exiting through the hot air slot nozzles 8 and 9 Hot air is applied to the patient to be treated Goods web 1 via the air filter 10 and the Heat exchanger 11 sucked in by the fans 12 and reheated the respective hot air nozzles 8 and 9 fed.

    Wie insbesondere aus den Figuren 1,2 und 3 ersichtlich, wird die zu behandelnde feuchte Warenbahn 1 zur Erzielung einer möglichst gleichmäßigen Dehnung über deren gesamte Breite zuerst einer Breitendehnvorrichtung A und dann einem endlos umlaufenden, in Blasrichtung mit Abstand durch den Durchlaufkanal 4 vorwartsbewegten Spannrahmen 13 zugeführt und mit Voreilung an der Stelle B durch Aufnadelung auf dem Spannrahmen 13 befestigt.As can be seen in particular from FIGS. 1, 2 and 3, becomes the wet web to be treated 1 to achieve an as even as possible stretch over their entire width of a width stretching device A first and then an endless, blowing in the direction of Distance moved forward through the flow channel 4 Clamping frame 13 fed and with lead in place B attached to the tenter frame 13 by needling.

    Die Breitendehnvorrichtung A ist, wie aus Figur 3 ersichtlich, auf bekannte Weise mit zwei umlaufenden, zwischen sich einen Dehnspalt bildenden Nutwalzen 14 und 15 versehen. Nach dieser Breitendehnvorrichtung A wird die Warenbahn 1 über mehrere Ausbreitwalzen einer Aufnadelungseinheit B zugeführt.The width expansion device A, as can be seen from FIG. 3, in a known manner with two revolving, between them grooved rollers 14 forming an expansion gap and 15 provided. After this width stretching device A is the web 1 over several spreading rollers Needling unit B supplied.

    Zur Erzielung einer Wellenbewegung in der durch den Durchlaufkanal 4 bewegten, zu behandelnden Warenbahn 1 sind die oberen Heissluft-Schlitzdüsen 9 in Transportrichtung D dieser Warenbahn 1 gesehen gegenüber den unteren Heissluft-Schlitzdüsen 8 versetzt angeordnet.To achieve a wave motion in the Pass-through channel 4 moving web 1 to be treated are the upper hot air slot nozzles 9 in the transport direction D seen this web 1 compared to the lower Hot air slot nozzles 8 arranged offset.

    Nach der seitlichen Aufnadelung der derart breitengedehnten Warenbahn 1 mittels der Aufnadelungseinheit B in den Spannrahmen 13 wird die breitengedehnte Ware 1 von einer Ausgangsbreite F (siehe Fig.5) aus mittels einer in der Warenbahnabstützebene C betrachtet konisch zulaufenden, bis auf die gewünschte Behandlungsbreite H sich verschmälernden, über die gesamte jeweilige Warenbahnbreite G seitlich sich erstreckenden Warenbahn-Abstütz- und Transporteinheit 30, dabei immer seitlich noch durch den endlos umlaufenden, ebenfalls analog dazu konisch sich verschmälernden Spannrahmen 13 gespannt gehalten, und bis in den Einlaß des Trockners 5,6,7 überführt. Auf diese Weise wird bei der Verschmälerung der Warenbahnbreite F auf die in den Trockner 5,6,7 zugeführte Behandlungsbreite H eine möglichst gleichmäßige Warenbahnausgangsstruktur erzielt, da die Warenbahn 1 bei ihrer Verschmälerung auf den oberen Trums der endlos umlaufenden Transportseilen 31 aufliegt und die letzteren dadurch eine gleichmäßige Verschmälerung der Warenbahn 1 über deren gesamte variierende Breite G unterstützen.After the needles on the side are stretched so wide Material web 1 by means of the needling unit B in the stenter 13, the goods 1 from an initial width F (see Fig. 5) one viewed conically in the web support plane C. tapering to the desired treatment width H narrowing across the entire respective web width G laterally extending web support and transport unit 30, always on the side still by the endlessly circulating, also analogously to it tapered tapered tenter 13 held, and up to the inlet of the dryer 5,6,7 transferred. This way, the narrowing the web width F to that fed into the dryer 5,6,7 Treatment width H as uniform as possible Goods exit structure achieved because the goods 1 when narrowing down on the upper runs the endlessly circulating transport cables 31 rests and the latter thereby a uniform narrowing the web 1 over its entire varying width G support.

    Wie aus Figur 2 ersichtlich, weist der endlos umlaufende Spannrahmen 13 eine zur seitlichen Fixierung der zu behandelnden Warenbahn 1 mit Nadeln 16 bzw. 17 versehene, durch je eine Endloskette gebildete linksseitige und rechtsseitige Warenbahnhalterung 18 bzw. 19 auf, deren Umlaufgeschwindigkeit zur Ausrichtung der Schussfadenrichtung individuell steuerbar ist, wobei entscheidend ist, dass die Führungsbänder 2,3 schneller vorwärts bewegt werden, als die Mittelgeschwindigkeit der beiden Warenbahnhalterungen 18 und 19. As can be seen from Figure 2, the endless revolving Clamping frame 13 one for lateral fixation of the web 1 to be treated provided with needles 16 and 17, formed by an endless chain on the left and right-hand web holder 18 or 19 on whose orbital speed to align the The weft direction is individually controllable it is crucial that the guide belts 2.3 faster be moved forward than the medium speed of the two web supports 18 and 19.

    Bei der dargestellten Ausführungsform wird eine der beiden Endlosketten 18 und 19 im Innern des Durchlaufkanals 4 zur Verhinderung einer Beschädigung des oberen Führungsbandes 2 durch die Nadeln 17 durch einen in Längsrichtung des Führungskanals 4 sich erstreckenden Führungs- und Abdeckkanal 20 geführt. Dabei sind die beiden Warenbahnhalterungen 18 und 19 zur Anpassung des Spannrahmens 13 an eine bestimmte Warenbahnbreite in seitlicher Richtung E verstellbar. Selbstverständlich ist es auch möglich, die Warenbahnhalterung 18 innerhalb eines zu 20 analogen Führungs- und Abdeckkanals zwischen dem oben und dem unteren Führungsband 2 bzw. 3 hindurchzuführen.In the illustrated embodiment, one of the two endless chains 18 and 19 inside the flow channel 4 to prevent damage to the top Guide tape 2 through the needles 17 by one in Longitudinal direction of the guide channel 4 extending Guide and cover channel 20 out. Here are the two web brackets 18 and 19 to adjust the Tenter frame 13 to a certain web width in lateral direction E adjustable. Of course it is also possible to keep the web holder 18 inside one of 20 analog guide and cover channels between the upper and lower guide bands 2 and 3 lead through.

    Der Führungs- und Abdeckkanal 20 ist in vertikaler Richtung am oberen und am unteren Führungsband 2 bzw. 3 abgestützt, und an seinen mit den letzteren in Berührung gelangenden Stellen 21 und 22 mit reibungsverminderndem Material, wie z.B. Teflon®, beschichtet.The guide and cover channel 20 is vertical Direction on the upper and lower guide bands 2 and 3 supported, and in contact with the latter Passing 21 and 22 with friction reducing Material such as Teflon®, coated.

    Durch diese seitliche Führung der in seiner Querrichtung gespannt gehaltenen zu behandelnden Warenbahn 1 mittels eines durch den Trockner verlaufenden, endlos umlaufenden Spannrahmens 13, kann ein bezüglich der Struktur, Maßhaltigkeit und Formstabilität äußerst gleichmäßiges Endprodukt erzielt werden.By this lateral guidance in its transverse direction tensioned web to be treated 1 by means of an endless running through the dryer circumferential tenter frame 13, can with respect to Structure, dimensional accuracy and dimensional stability extremely uniform end product can be achieved.

    Um z.B. bei einer verzogenen Warenbahn 1 die Schussfadenrichtung bzw. die Maschen auf eine senkrecht zur Warenbahnlängsrichtung verlaufende Gerade auszurichten, und/oder über die Warenbahnbreite gesehen zur Erzielung eines homogeneren Endproduktes einen unterschiedlichen Stauch- oder Dehneffekt zu erzielen ist es, wie aus Figur 4 ersichtlich, möglich, anstelle je eines einzigen unteren und oberen Führungsbandes 3 bzw. 2 mehrere schmälere Führungsbänder 3',3" und 3"' vorzusehen und deren Umlaufgeschwindigkeiten v1, v2 bzw. v3 individuell mit Hilfe einer opto-elektronischen Warenbahnabtastanordnung wie sie z.B. von der Firma Mahlo, BRD, oder Erhard & Leimer, BRD, erhältlich ist zu steuern.To e.g. in the case of a warped web 1, the weft direction or the stitches on a perpendicular to the longitudinal direction of the web align the straight line, and / or seen across the web width to achieve a more homogeneous end product It is to achieve compression or stretching effect, as from a figure 4 visible, possible instead of one lower and upper guide belt 3 or 2 several to provide narrower guide bands 3 ', 3 "and 3"' and their rotational speeds v1, v2 or v3 individually with the help of an opto-electronic web scanning arrangement such as from the company Mahlo, FRG, or Erhard & Leimer, FRG, is available.

    Um die Stauchung oder Dehnung der zu behandelnden Warenbahn 1 gezielter auf eine bestimmte Dichte durchführen zu können, ist es wie aus Figur 5 ersichtlich, auch möglich, anstelle je eines einzigen unteren und oberen Führungsbandes 3 bzw. 4 mehrere, aufeinanderfolgende voneinander unabhängige Führungsbandgruppen 2a, 3a; 2b, 3b und 2c, 3c vorzusehen und deren Umlaufgeschwindigkeiten v1, v2 bzw. v3 gruppenweise individuell mit Hilfe einer opto-elektronischen Warenbahnabtastanordnung zu steuern.The compression or stretching of the web to be treated 1 more targeted to a specific density to be able to, it can be seen from Figure 5, too possible instead of one lower and one upper Guide belt 3 or 4 several, successive independent guide band groups 2a, 3a; 2 B, 3b and 2c, 3c and their rotational speeds v1, v2 or v3 individually in groups With the help of an opto-electronic web scanning arrangement to control.

    Um die Krumpfwirkung in der Krumpfzone des Trockners zu verstärken, ist es zweckmäßig, wenn, wie aus Fig. 7 ersichtlich, die Ausströmrichtung I der Heissluftdüsen 8 und 9 in dieser Zone entgegen der Warenbahndurchlaufrichtung D um einen Winkel α im Bereich von 1 bis 40° gegenüber einer Vertikalen geneigt verläuft. Die Blasstärke und der Neigungswinkel α sind dabei derart aufeinander abzustimmen, dass im Betrieb keine wesentliche Verschiebung der auf den beiden Führungsbändern 2 und 3 stellenweise aufliegenden Warenbahnbereiche erfolgt. Durch eine solche Ausbildung der Heissluftdüsen 8' und 9' in der Krumpfzone des Trockners kann gegenüber der herkömmlichen vertikalen Anordnung der Heissluftdüsen eine wesentliche Verstärkung der beim Aufprall auf das jeweilige Führungsband 4 bzw. 3 auf die zu behandelnde Warenbahn 1 einwirkende Stauchkraft erzielt werden.To the shrinkage effect in the shrink zone of the dryer too amplify, it is expedient if, as can be seen from FIG. 7, the outflow direction I of the hot air nozzles 8 and 9 in this zone against the direction of travel of the web D by an angle α in the range from 1 to 40 ° runs inclined to a vertical. The Blow strength and the angle of inclination α are such to coordinate with each other that no essential in operation Displacement of the two guide bands 2 and 3 fabric web areas lying in places. With such a design of the hot air nozzles 8 'and 9' in the shrink zone of the dryer can be opposite the conventional vertical arrangement of the hot air nozzles a significant reinforcement on impact on the respective guide belt 4 or 3 on the material web 1 to be treated achieved compressive force will.

    Claims (13)

    1. A process for the continuous drying and shrinking of textile knitted or woven goods, in which the moist goods (1) to be treated are conveyed along a through-channel (4) formed between at least two endless rotating air permeable guide belts (2, 3) for the purpose of drying on both sides by means of at least one drying station (5, 6, 7) including oppositely disposed, oppositely acting hot-air nozzles (8, 9) which are offset relative to each other, comprising the steps of securing the material (1) with forward slip on an endless tenter frame (13), moving said material forward through said channel (4) while maintaining a clearance distance in the blower directicn, moving said material laterally secured through through said drying station (5, 6, 7) so that the material (1) to be treated, in the blow area of an individual hot-air nozzle (8, 9) comes momentarily to rest on said guide belt (2, 3) facing away from the latter, characterised in by moving said material (1) to be treated, transversely tensioned by means of the tenter frame (13) and in a direction of motion (D) of said material in wave form through said drying station (5,6,7), whereby the latter is provided with hot-air slit nozzles (8,9) extending over the entire width of the material to be treated, whereby the lower and/or upper guide belt (3, 2) moves forward more quickly than said tenter frame (13).
    2. A process according to claim 1, characterised in that the material (1), before being placed on the tenter frame (13), is conveyed through a width-stretching device (A).
    3. A process according to claim 2, characterised in that, after leaving the width-stretching device (A) and laterial fixing in the tenter frame (13), the width-stretched material (1) is further conveyed by means of a web-supporting and transporting unit (30) which moves, narrowing conically as seem from the web-supporting plane (C), and extends over the entire varying web width (G), to reach the desired treatment width (H).
    4. A process according to one of the claims 1 to 3, characterised in that a lower and/or upper guide belt (3, 2) is employed which comprises several narrower belts (3', 3", 3''') or cables which are independent of each other and whose rotary speeds (v1, v2, v3) are controlled individually.
    5. A process according to one of the claims 1 to 4, characterised in that the through-channel (4) is limited by several groups of guide belts (2a, 3a; 2b, 3b; 2c, 3c) which are independent of each other and whose rotary speeds (v1, v2, v3) are controlled individually.
    6. A process according to claim 5, characterised in that the guide belt rotary speed in the actual shrinking zone is at its greatest.
    7. A process according to one of the claims 4 to 6, characterised in that the drive of the various guide belts (2', 2", 2'''; 3', 3", , 3'''; 2a, 3a; 2b, 3b; 2c, 3c) is individually controllable with the aid of a web-scanner.
    8. A process according to claim 4 and 7, characterised in that the drive of the various belts or cables (3', 3", 3"'), which are arranged side-by-side and parallel to each other, is controlled so that, with knitted goods the stitches are aligned with each other at a right-angle to the moving web (1), and, with woven goods the weft threads are aligned at a right-angle to the moving web (1), and if necessary the degree of gathering resp. of stretching thereof is adjusted.
    9. An apparatus for carrying out the process according to claim 1, having at least one drying station (5, 6, 7) comprising several oppositely disposed and oppositely acting hot-air nozzles (8, 9) which are offset relative to each other and directed into a through-channel (4) and also having at least two endless rotating, air permeable guide belts (2, 3) limiting said channel (4) above and below, whereby for conveyance of a web (1) of material to be treated through the at least one drying station (5, 6, 7) an endless rotary web-tentering frame (13) passing along the through-channel (4) limited by the guide belts (2, 3) is provided, and the vertical distance between said web-tenter frame (13) and the lower strand of the at least one upper guide belt (2), as also between the upper strand of the at least one lower guide belt (3) is so calculated that, as the apparatus operates, within the particular effective range of a hot-air nozzle (8, 9) directed thereon, a web (1), in a locally limited area, secured in and conveyed by the web-tenter frame (13), comes into contact with the further distanced guide belt (3, 2), and the supply means (A,B) conveying the web (1) to be treated to the tenter frame are so designed as to secure the material (1) with forward slip to the tenter frame, characterised by that the drying station (5,6,7) is provided with hot-air slit nozzles (8,9) extending over the entire width of the material (1) to be treated, and that the lower and/or upper guide belt (3, 2) moves on at greater speed than that of the tenter frame (13).
    10. An apparatus according to claim 9, characterised in that a width-stretching device (A) for treatment of the web is mounted before the tenter frame (13) which device (A) is provided with at least two rollers (14, 15), one (14) of which has on its periphery a relief comprising a plurality of elevations and depressions, whilst the other (15) has on its periphery an at least approximately complementary relief whose elevations fit into the depressions of the aforementioned roller (14).
    11. An apparatus according to claim 9 or 10, characterised in that the left-hand and right-hand web-clamping means (18, 19) of the tenter frame (13) comprise an endless chain carrying needles (16, 17) or tenter clips, and in that at least one of the two chains (18, 19) is conveyed through a guide and covering channel (22, 23) within the through-channel (4) and extending in longitudinal direction of said channel (4), and which is supported in vertical direction on at least one of the upper and lower guide belts (2,3).
    12. An apparatus according to one of the claims 9 to 11, characterised in that the mutual distance apart (K) of the two guide belts (2, 3) limiting the through-channel (4) in vertical direction is adjustable.
    13. An apparatus according to one of the claims 9 to 12, characterised in that the efflux direction (I) in at least a part of the shrinking zone of the apparatus is directed obliquely counter to the direction of travel (D) of the web and at an angle (α) in the region of 1° - 40° to the vertical, and in that the blower strength and the angle of inclination (α) are co-ordinated in such a manner that, in practice, no significant displacement at any point occurs of the web portions in contact upon the two guide belts (2, 3).
    EP95810058A 1995-01-31 1995-01-31 Method and device for drying and shrinking of textile fabric Expired - Lifetime EP0725178B2 (en)

    Priority Applications (14)

    Application Number Priority Date Filing Date Title
    ES95810058T ES2126862T3 (en) 1995-01-31 1995-01-31 PROCEDURE AND DEVICE FOR DRYING AND CONTRACTION OF TEXTILE FABRIC.
    EP95810058A EP0725178B2 (en) 1995-01-31 1995-01-31 Method and device for drying and shrinking of textile fabric
    DE59504261T DE59504261D1 (en) 1995-01-31 1995-01-31 Method and device for drying and shrinking textile goods
    EP95810185A EP0733733A1 (en) 1995-01-31 1995-03-20 Method and device for drying and shrinking textiles
    TW85100532A TW313605B (en) 1995-01-31 1996-01-17
    RU96101793A RU2139378C1 (en) 1995-01-31 1996-01-30 Method and apparatus for drying and shrinkage of textile product
    CZ96283A CZ28396A3 (en) 1995-01-31 1996-01-30 Process of drying and contracting textiles and apparatus for making the same
    TR96/00078A TR199600078A1 (en) 1995-01-31 1996-01-30 Methods and equipment for drying and shrinking of textile products.
    BR9600262A BR9600262A (en) 1995-01-31 1996-01-30 Process for continuous drying and shrinking of textile articles and devices to carry out the process
    CN96101103A CN1083030C (en) 1995-01-31 1996-01-30 Method and apparatus for drying and shrinking fabrics
    JP8014543A JPH08232163A (en) 1995-01-31 1996-01-30 Method and apparatus for drying and shrinkage processing of fiber product
    US08/594,912 US5943747A (en) 1995-01-31 1996-01-31 Drying and shrinking of textile webs using a tentering frame equipped with guide belts and hot air nozzles
    CA002181962A CA2181962C (en) 1995-01-31 1996-07-24 Process and apparatus for the drying and shrinking of textile goods
    GR990400416T GR3029330T3 (en) 1995-01-31 1999-02-10 Method and device for drying and shrinking of textile fabric

    Applications Claiming Priority (4)

    Application Number Priority Date Filing Date Title
    EP95810058A EP0725178B2 (en) 1995-01-31 1995-01-31 Method and device for drying and shrinking of textile fabric
    US08/594,912 US5943747A (en) 1995-01-31 1996-01-31 Drying and shrinking of textile webs using a tentering frame equipped with guide belts and hot air nozzles
    CA002181962A CA2181962C (en) 1995-01-31 1996-07-24 Process and apparatus for the drying and shrinking of textile goods
    AU60828/96A AU719339B2 (en) 1996-07-30 1996-07-30 Process and apparatus for the drying and shrinking of textile goods

    Related Child Applications (2)

    Application Number Title Priority Date Filing Date
    EP95810185.9 Division-Into 1995-03-20
    EP95810185A Division EP0733733A1 (en) 1995-01-31 1995-03-20 Method and device for drying and shrinking textiles

    Publications (3)

    Publication Number Publication Date
    EP0725178A1 EP0725178A1 (en) 1996-08-07
    EP0725178B1 true EP0725178B1 (en) 1998-11-18
    EP0725178B2 EP0725178B2 (en) 2005-04-27

    Family

    ID=27423580

    Family Applications (2)

    Application Number Title Priority Date Filing Date
    EP95810058A Expired - Lifetime EP0725178B2 (en) 1995-01-31 1995-01-31 Method and device for drying and shrinking of textile fabric
    EP95810185A Withdrawn EP0733733A1 (en) 1995-01-31 1995-03-20 Method and device for drying and shrinking textiles

    Family Applications After (1)

    Application Number Title Priority Date Filing Date
    EP95810185A Withdrawn EP0733733A1 (en) 1995-01-31 1995-03-20 Method and device for drying and shrinking textiles

    Country Status (11)

    Country Link
    US (1) US5943747A (en)
    EP (2) EP0725178B2 (en)
    JP (1) JPH08232163A (en)
    CN (1) CN1083030C (en)
    BR (1) BR9600262A (en)
    CA (1) CA2181962C (en)
    CZ (1) CZ28396A3 (en)
    DE (1) DE59504261D1 (en)
    ES (1) ES2126862T3 (en)
    GR (1) GR3029330T3 (en)
    TR (1) TR199600078A1 (en)

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    Also Published As

    Publication number Publication date
    CZ28396A3 (en) 1996-08-14
    ES2126862T3 (en) 1999-04-01
    EP0733733A1 (en) 1996-09-25
    EP0725178B2 (en) 2005-04-27
    DE59504261D1 (en) 1998-12-24
    BR9600262A (en) 1997-12-23
    JPH08232163A (en) 1996-09-10
    US5943747A (en) 1999-08-31
    CA2181962C (en) 2005-05-24
    CA2181962A1 (en) 1998-01-25
    TR199600078A1 (en) 1997-03-21
    GR3029330T3 (en) 1999-05-28
    CN1083030C (en) 2002-04-17
    CN1134479A (en) 1996-10-30
    EP0725178A1 (en) 1996-08-07

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