CH680437A5 - - Google Patents

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Publication number
CH680437A5
CH680437A5 CH1520/90A CH152090A CH680437A5 CH 680437 A5 CH680437 A5 CH 680437A5 CH 1520/90 A CH1520/90 A CH 1520/90A CH 152090 A CH152090 A CH 152090A CH 680437 A5 CH680437 A5 CH 680437A5
Authority
CH
Switzerland
Prior art keywords
press
transparent film
web
cardboard
nozzle head
Prior art date
Application number
CH1520/90A
Other languages
German (de)
Inventor
Bernd Loibl
Original Assignee
Ibico Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ibico Ag filed Critical Ibico Ag
Priority to CH1520/90A priority Critical patent/CH680437A5/de
Priority to PCT/CH1991/000073 priority patent/WO1991017039A1/en
Publication of CH680437A5 publication Critical patent/CH680437A5/de

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/40—Applying molten plastics, e.g. hot melt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/003—Protecting areas of the parts to be joined from overheating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/748—Joining plastics material to non-plastics material to natural products or their composites, not provided for in groups B29C66/742 - B29C66/746
    • B29C66/7486—Paper, e.g. cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2711/00—Use of natural products or their composites, not provided for in groups B29K2601/00 - B29K2709/00, for preformed parts, e.g. for inserts
    • B29K2711/12—Paper, e.g. cardboard
    • B29K2711/126—Impregnated

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Making Paper Articles (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The device disclosed is designed to produce a hot-bonded joint between cardboard and transparent foil, with a nozzle for applying hot liquid adhesive to the bond line. The nozzle (DK) is located at a relatively short distance from a roller press (RP) which presses the overlapping edges of the strip of cardboard (Kb) and the strip of transparent foil (Tf) together. The nozzle (DK) is disposed so that the liquid adhesive is applied directly to the transparent foil with the cardboard and foil strips moving at a relatively high speed in order to avoid the transparent foil being damaged by the liquid adhesive being at too high a temperature.

Description

       

  
 



  Die vorliegende Erfindung betrifft eine Vorrichtung zur Herstellung einer Heissleimnaht zwischen einem Karton und einer Transparentfolie gemäss dem Oberbegriff des Patentanspruchs 1. 



  Es sind Vorrichtungen bekannt, die einen Düsenkopf zum Anbringen eines Kleberstreifens auf einen Rand eines Kartons aufweisen, auf den nachträglich ein Rand einer Transparentfolie gepresst wird, um damit eine Klebverbindung, auch Heissleimnaht genannt, zwischen dem Karton und der Transparentfolie, insbesondere zur Herstellung von Mäppchen, zu erzeugen. Der Kleberstreifen ist ein sogenannter "Heisskleber" oder PS-Kleber, der bei ca. 150 bis 170 Grad Celsius arbeitet. Bei solchen Vorrichtungen ist es wichtig, die Transparentfolie nicht zu beschädigen, da sie Temperaturen bis nur 90 Grad Celsius ertragen kann. Aus diesem Grund wird der Kleberstreifen gemäss dem Stand der Technik regelmässig auf den Karton, der viel höhere Temperaturen ertragen kann, aufgelegt. 



  Bei den eingangs erwähnten Vorrichtungen stellt sich nun das Problem, eine Heissleimnaht zwischen einem Karton und einer Transparentfolie herzustellen, die eine solidere Klebverbindung ergibt. 



  Diese Aufgabe wird erfindungsgemäss durch eine Vorrichtung mit den im kennzeichnenden Teil des Anspruchs 1 angegebenen Merkmalen gelöst. Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Ansprüchen angegeben. 



  Im folgenden wird die Erfindung beispielsweise anhand einer Zeichnung näher erläutert. Es zeigt: 
 
   Fig. 1 eine schematische Darstellung einer erfindungsgemässen Vorrichtung, und 
   Fig. 2 eine schematische Darstellung der Heissleimnaht zwischen einer Transparentfolie und einem Karton. 
 



  Die Vorrichtung nach Fig. 1 weist je eine Vorratsrolle VRT und VRK für die Transparentfolie T (Fig. 2) bzw. für den Karton K auf. Zur Vereinfachung der Zeichnung sind in Fig. 1 die Achsen der Vorratsrollen VRT und VRK, die von einem gemeinsamen Träger TR gehaltert werden können, parallel verlaufend dargestellt. Für den Zweck der Erfindung können sie jedoch ohne weiteres in einem Winkel oder senkrecht zueinander angeordnet sein. Die Vorrichtung ist mit einem Mechanismus versehen, um zu bewirken, dass ab einer bestimmten Stelle die Transparentfolienbahn Tf in einem kleinen Abstand oberhalb der Kartonbahn Kb verläuft. Die Transparentfolienbahn Tf wird zu diesem Zweck mit Hilfe von Rollern R1, R2, R3 und R4 derart geführt, dass sie ab dem Roller R4 tatsächlich nur in einem kleinen Abstand oberhalb der Kartonbahn Kb läuft.

  Die Kartonbahn Kb geht vorzugsweise zuerst über eine Rillstation VS vorbei, die im Fall gemäss Fig. 1 beispielsweise durch drei Rillrollerpaare schematisch angedeutet ist, die zur Herstellung von Rillen RL1 und RL2 (Fig. 2) dienen, die das nachträgliche Falten des Kartonrands erleichtern. Solche Rillstationen sind an sich bekannt und werden daher nicht näher beschrieben. 



  Obwohl die Achsen der Vorratsrollen VRT und VRK parallel dargestellt sind, befinden sich die eigentlichen Vorratsrollen VRT und VRK in verschobener Lage zueinander, so dass sie sich nur in einem relativ schmalen Rand überlappen, wo sie miteinander versiegelt werden. Im Bereich des Rollers R3 befindet  sich die Mündung eines mit einem Behälter BK für einen heissen flüssigen Klebstoff verbundenen Düsenkopfes DK, mit dessen Hilfe ein Heissleim- oder Kleberstreifen KB (Fig. 2) auf die Transparentfolienbahn Tf aufgetragen wird, und zwar auf der Seite der Transparentfolie T, die später in Berührung mit der Kartonbahn Kb kommen soll, das heisst vorzugsweise ausserhalb der in Fig. 2 dargestellten Verrillung RL1, RL2.

  Dabei ist der Abstand zwischen den Rollern R3 und R4 relativ klein und die Geschwindigkeit der Folienbahnen relativ gross gewählt, damit die Transparentfolie T durch die hohe Temperatur des Heissklebers oder PS-Klebers nicht beschädigt wird, die bei den heute handelsüblichen Klebstoffen im Bereich von etwa 150 bis 170 Grad Celsius liegt, wobei zum Zweck der Erfindung diese Temperaturgrenzen nicht sehr relevant sind. Bei der erfindungsgemässen Vorrichtung ist zudem eine Rollerpresse RP relativ nahe zum Roller R4 vorgesehen, um durch ein schnelles Zusammenpressen der zwei Bahnen eine Beschädigung der Transparentfolie T zu vermeiden. 



  Die Vorrichtung nach Fig. 1 umfasst zudem vorzugsweise einen nach der Rollerpresse RP angeordneten Mechanismus WM, der vorgesehen ist, um in den Bereich zwischen den zwei parallel verlaufenden Rillen RL1 und RL2 und gegebenenfalls auch um diese Rillen (Fig. 2) einen weiteren Heissleimstreifen HS aufzutragen, ferner einen Abschneidemechanismus SM, um nachträglich die bereits mit einer Siegelnaht versehene Bahn in den gewünschten Längen zu schneiden, sowie einen Mechanismus FM zur Faltung der bereits gefalteten Mäppchen, während die Heissleimnaht KB, auch Kleberstreifen genannt, noch warm ist. Die Mechanismen WM und SM können in ein und dieselbe Einheit integriert sein. 



   Durch die Erfindung wurde überraschenderweise festgestellt, dass die Transparentfolie T, beispielsweise eine sogenannte PVC-Folie oder eine Acetatfolie oder eine Folie aus Polypropy len oder aus Polyester, viel besser als erwartet den erwähnten hohen Temperaturen widerstehen kann und dass die Versiegelung zwischen der Tansparentfolie T und dem Karton Kb viel solider als bei den Mäppchen ist, die mit Hilfe anderer bekannter Vorrichtungen hergestellt werden. 



  
 



  The present invention relates to a device for producing a hotmelt seam between a carton and a transparent film according to the preamble of patent claim 1.



  Devices are known which have a nozzle head for attaching an adhesive strip to an edge of a cardboard, onto which an edge of a transparent film is subsequently pressed, in order to use it for an adhesive bond, also called a hot-melt seam, between the cardboard and the transparent film, in particular for the production of pencil cases , to create. The adhesive strip is a so-called "hot glue" or PS glue, which works at approx. 150 to 170 degrees Celsius. With such devices, it is important not to damage the transparent film, since it can withstand temperatures up to only 90 degrees Celsius. For this reason, the adhesive strip according to the prior art is regularly placed on the cardboard, which can withstand much higher temperatures.



  In the devices mentioned at the outset, the problem now arises of producing a hotmelt seam between a cardboard box and a transparent film, which results in a more solid adhesive bond.



  This object is achieved according to the invention by a device with the features specified in the characterizing part of claim 1. Further advantageous embodiments of the invention are specified in the dependent claims.



  The invention is explained in more detail below, for example, using a drawing. It shows:
 
   Fig. 1 is a schematic representation of an inventive device, and
   Fig. 2 is a schematic representation of the hot glue seam between a transparent film and a box.
 



  The device according to FIG. 1 has a supply roll VRT and VRK for the transparent film T (FIG. 2) and for the carton K. To simplify the drawing, the axes of the supply rolls VRT and VRK, which can be held by a common carrier TR, are shown running in parallel in FIG. 1. For the purpose of the invention, however, they can easily be arranged at an angle or perpendicular to one another. The device is provided with a mechanism for causing the transparent film web Tf to run a small distance above the cardboard web Kb from a certain point. For this purpose, the transparent film web Tf is guided with the aid of rollers R1, R2, R3 and R4 in such a way that it actually runs from the roller R4 only a small distance above the cardboard web Kb.

  The cardboard web Kb preferably first passes over a creasing station VS, which in the case of FIG. 1 is schematically indicated, for example, by three creasing roller pairs which are used to produce grooves RL1 and RL2 (FIG. 2), which facilitate the subsequent folding of the cardboard edge. Such creasing stations are known per se and are therefore not described in detail.



  Although the axes of the supply rolls VRT and VRK are shown in parallel, the actual supply rolls VRT and VRK are in a displaced position relative to one another, so that they only overlap in a relatively narrow edge, where they are sealed together. In the area of the roller R3 is the mouth of a nozzle head DK connected to a container BK for a hot liquid adhesive, with the aid of which a hot glue or adhesive strip KB (FIG. 2) is applied to the transparent film web Tf, on the side of the Transparent film T which is later to come into contact with the cardboard web Kb, that is to say preferably outside of the grooves RL1, RL2 shown in FIG. 2.

  The distance between the rollers R3 and R4 is relatively small and the speed of the film webs is chosen to be relatively high, so that the transparent film T is not damaged by the high temperature of the hot glue or PS glue, which is around 150 in the case of the adhesives customary today is up to 170 degrees Celsius, these temperature limits are not very relevant for the purpose of the invention. In the device according to the invention, a roller press RP is also provided relatively close to the roller R4 in order to avoid damage to the transparent film T by quickly pressing the two webs together.



  The device according to FIG. 1 also preferably comprises a mechanism WM arranged after the roller press RP, which mechanism is provided in order to insert a further hotmelt strip HS into the area between the two parallel grooves RL1 and RL2 and optionally also around these grooves (FIG. 2) apply, also a cut-off mechanism SM to subsequently cut the web already provided with a sealing seam in the desired lengths, and a mechanism FM for folding the already folded pencil case, while the hot glue seam KB, also called adhesive strip, is still warm. The mechanisms WM and SM can be integrated in one and the same unit.



   The invention surprisingly found that the transparent film T, for example a so-called PVC film or an acetate film or a film made of polypropylene or polyester, can withstand the high temperatures mentioned much better than expected and that the seal between the transparent film T and the cardboard Kb is much more solid than the pencil cases made using other known devices.

Claims (8)

1. Vorrichtung zur Herstellung einer Heissleimnaht zwischen einem Karton und einer Transparentfolie mit einem Düsenkopf zum Auftragen eines flüssigen heissen Klebstoffs auf die zu klebende Stelle, dadurch gekennzeichnet, dass der Düsenkopf (DK) in einem relativ kleinen Abstand zu einer Presse (RP) angeordnet ist, mit deren Hilfe die überlappenden Ränder des Kartons (K) und der Transparentfolie (T) miteinander gepresst werden, und dass der Düsenkopf (DK) derart angeordnet ist, dass der flüssige heisse Klebstoff direkt auf die Transparentfolie (T) bei einer relativ hohen Geschwindigkeit der Bahnen aufgetragen wird, um eine Beschädigung der Transparentfolie (T) durch eine zu hohe Temperatur des flüssigen Klebstoffs zu vermeiden.       1. Device for producing a hot glue seam between a carton and a transparent film with a nozzle head for applying a liquid hot adhesive to the point to be glued, characterized in that the nozzle head (DK) is arranged at a relatively small distance from a press (RP) , with the help of which the overlapping edges of the carton (K) and the transparent film (T) are pressed together, and that the nozzle head (DK) is arranged in such a way that the liquid hot adhesive directly onto the transparent film (T) at a relatively high speed of the webs is applied in order to avoid damage to the transparent film (T) due to the temperature of the liquid adhesive being too high. 2. 2nd Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass mindestens ein Führungsroller (R3) vorhanden ist, der sich in einem relativ kleinen Abstand zur Presse (RP) befindet, und dass der Düsenkopf (DK) sich zumindest angenähert in unmittelbarer Nähe dieses Führungsrollers (R3) befindet. Device according to claim 1, characterized in that there is at least one guide roller (R3) which is located at a relatively small distance from the press (RP) and that the nozzle head (DK) is at least approximately in the immediate vicinity of this guide roller (R3) located. 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass ein Träger (TR) vorhanden ist, um mindestens eine Vorratsrolle (VRT; VRK) für eine Transparentfolienbahn (Tf) und/oder für eine Kartonbahn (Kb) zu haltern. 3. Device according to claim 1 or 2, characterized in that a carrier (TR) is present to hold at least one supply roll (VRT; VRK) for a transparent film web (Tf) and / or for a cardboard web (Kb). 4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass im Bereich vor der Presse (RP) bezüglich der Bewegungsrichtung der Kartonbahn (Kb) ein Mechanismus (VS) zur Herstellung von Rillen (RL1, RL2) in dieser Kartonbahn (Kb) vorhanden ist. 4. Device according to one of claims 1 to 3, characterized in that in the area in front of the press (RP) with respect to the direction of movement of the cardboard web (Kb), a mechanism (VS) for producing grooves (RL1, RL2) in this cardboard web (Kb ) is available. 5. 5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass im Bereich nach der Presse (RP) bezüglich der Bewegungsrichtung der Kartonbahn (Kb) ein weiterer Mechanismus (WM) zum Auftragen eines zweiten Heissleimstreifens (HS) zwischen den Rillen (RL1, RL2) und/oder um die Rillen (RL1, RL2) vorhanden ist.  Device according to one of claims 1 to 4, characterized in that in the area after the press (RP) with respect to the direction of movement of the cardboard web (Kb) a further mechanism (WM) for applying a second hot glue strip (HS) between the grooves (RL1, RL2 ) and / or around the grooves (RL1, RL2) is present. 6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass im Bereich nach der Presse (RP) bezüglich der Bewegungsrichtung der Kartonbahn (Kb) ein Schneidemechanismus (SN) zum Abschneiden der Bahn in gewünschten Längen vorhanden ist. 6. Device according to one of claims 1 to 5, characterized in that in the area after the press (RP) with respect to the direction of movement of the cardboard web (Kb) there is a cutting mechanism (SN) for cutting the web in desired lengths. 7. Vorrichtung nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass nach einem dieser Mechanismen (WM; SM) bezüglich der Bewegungsrichtung der Bahn eine Falteinrichtung (FM) vorhanden ist. 7. The device according to claim 5 or 6, characterized in that according to one of these mechanisms (WM; SM) with respect to the direction of movement of the web, a folding device (FM) is present. 8. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Presse (RP) eine Rollerpresse ist. 8. Device according to one of claims 1 to 7, characterized in that the press (RP) is a roller press.  
CH1520/90A 1990-05-04 1990-05-04 CH680437A5 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH1520/90A CH680437A5 (en) 1990-05-04 1990-05-04
PCT/CH1991/000073 WO1991017039A1 (en) 1990-05-04 1991-03-26 Device for producing a hot-bonded joint between a sheet of cardboard and a sheet of transparent foil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1520/90A CH680437A5 (en) 1990-05-04 1990-05-04

Publications (1)

Publication Number Publication Date
CH680437A5 true CH680437A5 (en) 1992-08-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
CH1520/90A CH680437A5 (en) 1990-05-04 1990-05-04

Country Status (2)

Country Link
CH (1) CH680437A5 (en)
WO (1) WO1991017039A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20010664A (en) 2001-03-30 2002-10-01 Metso Paper Inc Procedure for controlling drum barking

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3008862A (en) * 1956-06-29 1961-11-14 Union Carbide Corp Extruded bead sealing
CA1069775A (en) * 1975-03-17 1980-01-15 Henry N. Staats Apparatus and method for manufacturing adhesive covers
SE434715B (en) * 1982-01-20 1984-08-13 Tetra Pak Dev SET FOR JOINING LAMINATE MATERIALS INCLUDING LAYERS OF ORIENTATION DRAWN POLYESTER
DE8331187U1 (en) * 1983-10-29 1984-04-19 Swedex Vertriebs-GmbH für technische und elektrotechnische Geräte, 4040 Neuss Cover for sheets of paper
DE3624573A1 (en) * 1986-07-21 1988-01-28 Schlegel Lining Tech Gmbh METHOD FOR CONTINUOUS OVERLAP WELDING OF LARGE-SCALE PLASTIC FILMS OR PANELS

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Publication number Publication date
WO1991017039A1 (en) 1991-11-14

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