EP0654002B1 - Package for adhesives and/or sealing materials - Google Patents

Package for adhesives and/or sealing materials Download PDF

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Publication number
EP0654002B1
EP0654002B1 EP93917734A EP93917734A EP0654002B1 EP 0654002 B1 EP0654002 B1 EP 0654002B1 EP 93917734 A EP93917734 A EP 93917734A EP 93917734 A EP93917734 A EP 93917734A EP 0654002 B1 EP0654002 B1 EP 0654002B1
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EP
European Patent Office
Prior art keywords
pack
disk
inner pack
composite film
transport container
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP93917734A
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German (de)
French (fr)
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EP0654002A1 (en
Inventor
Guido FÖRDERER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel Teroson GmbH
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Henkel Teroson GmbH
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Publication date
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Publication of EP0654002A1 publication Critical patent/EP0654002A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/80—Arrangements of heating or cooling devices for liquids to be transferred
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
    • B65B39/12—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers movable towards or away from container or wrapper during filling or depositing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B69/00—Unpacking of articles or materials, not otherwise provided for
    • B65B69/005—Unpacking of articles or materials, not otherwise provided for by expelling contents, e.g. by squeezing the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
    • B65D77/06—Liquids or semi-liquids or other materials or articles enclosed in flexible containers disposed within rigid containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/0005—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container
    • B65D83/0044—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container the piston having a dispensing opening formed in the piston
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/02—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
    • B67D7/0227—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants by an ejection plunger
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/58—Arrangements of pumps
    • B67D7/62—Arrangements of pumps power operated
    • B67D7/64—Arrangements of pumps power operated of piston type
    • B67D7/645—Barrel pumps

Definitions

  • the present invention relates to packaging for adhesives and / or sealants according to the preamble of the patent claim, their use and a method for filling and emptying them.
  • Adhesives and sealants are supplied for large industrial consumers in drums or similar large-volume containers, which are usually made of metal.
  • this packaging must effectively prevent the ingress of air or moisture in order to avoid premature curing or hardening of the adhesive / sealant. This tightness against air or moisture must be ensured both during filling, transport, storage and during emptying of the packaging.
  • DE-C-3605422 describes a method for filling and emptying a container for a flowable material, this material being filled into a flexible inner packaging that is tight for the material.
  • This inner packaging is adapted to the dimensions of the outer transport container, usually a metal barrel or metal jack.
  • the sack-like inner packaging is first filled with the flowable material in a pot-like intermediate container with a suitable filling device.
  • the dimensions of the intermediate container are chosen to be somewhat smaller than the corresponding internal dimensions of the actual transport container.
  • a rigid cover plate is then placed on the material surface and the inner packaging is sealed at its upper end by superimposing and welding the edge areas.
  • the inner packaging filled and closed in this way is then turned together with the intermediate container by 180 ° and placed on the somewhat larger transport container so that the filled and closed inner packaging is introduced into the transport container.
  • the transport container is then closed with a lid.
  • the cover is removed to remove the material and the material is removed with a suitable conveyor.
  • a feed pump is expediently connected to a pressure follower plate. The latter is placed in the flat surface after an opening has been cut, and the material to be removed is compressed the inner packaging pushed up.
  • the method according to DE-C-3605422 is also described in detail in AdPSsion 1987 , Issue 12, pp.25-26.
  • DE-U-8812012 proposes packaging bags made of multilayer composite films as inner packaging, the layer structure consisting of three layers of polymer film and one layer of metal film To protect the adhesive / sealant even better against exposure to moisture and / or air.
  • the object of the invention is to further develop the known packaging and the known methods for filling and emptying this packaging so that the disadvantages listed above are avoided in the most cost-effective way.
  • the inner packaging 2 is inserted into the intermediate container 1 . Thereafter, the blank is mounted on the pressure follower plate 4. 3
  • the round blank has somewhat larger dimensions than the pressure follower plate, so that the blank can be guided beyond the edge region of the pressure follower plate. This enables the round blank to be mechanically fixed to the pressure follower plate, for example by clamping.
  • the round blank contains a central bore which is adapted to the inside diameter of the material delivery tube 5 . In a preferred embodiment, the round blank has a square cut. This configuration ensures that the pressure follower plate 4 is protected from contamination by the adhesive / sealant to be filled into the inner packaging.
  • the upper end of the inner packaging 2 is over the edge 7 of the intermediate container pulled so that the inner packaging lies smoothly and wrinkle-free on the inner walls of the intermediate container.
  • the pressure follower plate can either be moved up with the help of the hold-down device 6 according to the fill level of the container.
  • the hold-down device 6 can rigidly fix the unit consisting of the follower plate and the material conveying pipe, in this case the intermediate container 1 is moved downwards in accordance with the degree of filling.
  • the inner packaging 2 and the circular blank 3 consist of a multi-layer composite material, one layer consisting of a metal foil.
  • the layer structure consists at least of three layers, the metal foil being laminated between two polymer foils.
  • the layers of the polymer foils preferably consist of polyolefins, for example polypropylene and / or polyethylene, the metal foil is preferably an aluminum foil.
  • inner packaging and circular blanks with more than two polymer layers can also be used without any problems, in any case a metal foil must be provided as an intermediate layer.
  • Other materials for the further polymer films are, for example, polyamide or polyester.
  • the bag-like inner packaging is designed in such a way that a completely flat and wrinkle-free bottom area results after insertion into the intermediate container.
  • the fixing of the circular blank 3 is released from the pressure follower plate 4 and the circular blank remains as a protective cover on the surface of the adhesive / sealant.
  • FIG. 2 shows the closed inner packaging 2 in the intermediate container 1 .
  • the filled and closed inner packaging is then inserted into the transport packaging 9 by turning it inside out.
  • a cover disk 12 with a central hole 13 is placed on top of the flat surface of the inner packaging before the transport packaging is closed.
  • the function of this disc is explained in more detail below.
  • the material properties of this cover pane are of minor importance, so that inexpensive and easy-to-dispose materials such as cardboard disks are preferably used here.
  • the transport container 9 is closed with the lid 11 .
  • FIG. 4 shows the conditions during the emptying of the packaging by the user.
  • the lid 11 is removed, using the cover plate 12 as a template, a hole 14 was cut in the inner packaging in a congruent manner with the central hole 13 .
  • the hold-down device 6 presses the pressure follower plate 4 down onto the flexible inner packaging 2 , as a result of which the adhesive / sealant is conveyed through the material feed pipe 5 to a pump (not shown) and from there is further conveyed to the application system.
  • This prevents the cover plate 12 certainly contaminates the pressure follower plate 4 by the adhesive / sealant even in the event that the wall of the inner packaging 2 further tears under the high delivery pressure. Such contamination is observed very often without a cover plate 12 .
  • the flexible inner packaging 2 folds below the pressure follower plate 4 like an accordion 15 .
  • the stiffness of a circular blank 3 made of the same composite film as the inner packaging 2 is sufficient without this circular blank 3 being able to get into the material conveying tube 5 at the end of the emptying process.
  • the design of the packaging according to the invention thus enables a particularly economical form of packaging, in particular for air and / or moisture-sensitive, pasty and / or highly viscous adhesives / sealants, since the labor-intensive and unreliable sealing of the inner packaging, for example by welding or twisting with wires, is also eliminated the remains of the inner packaging can be disposed of more easily and cost-effectively after emptying.
  • the blank 3 and the inner packaging 2 are made of the same material, so that recycling is facilitated.
  • the cover plate 12 preferably consists of an inexpensive and easy to dispose of cardboard disc.
  • the invention thus provides packaging and a method for filling and emptying containers for flowable adhesives / sealants, which enables the handling of particularly air and / or moisture-sensitive materials in a particularly cost-effective manner, while taking account of the requirements of environmental protection wearing.

Abstract

PCT No. PCT/EP93/02067 Sec. 371 Date Feb. 13, 1995 Sec. 102(e) Date Feb. 13, 1995 PCT Filed Aug. 4, 1993 PCT Pub. No. WO94/04439 PCT Pub. Date Mar. 3, 1994A pack for transporting flowable air and moisture sensitive adhesive and sealant materials which consists of a transport container having a closed bottom end and an open top end, a collapsible inner bag having a sealed lower end and a foldable open upper end wherein the collapsible inner bag is removably disposed within the transport container, a flexible apertured first disk interposed between the foldable open upper end of the collapsible inner bag and the adhesive and sealant materials contained in the collapsible inner bag wherein the first disk has a diameter larger than that of the container, and a disposable second disk interposed between the open top end of the transport container and the sealed lower end of the collapsible inner bag after the inner bag has been inverted and placed inside the transport container.

Description

Die vorliegende Erfindung betrifft Verpackungen für Kleb- und/oder Dichtstoffe gemäß dem Oberbegriff des Patentanspruches, deren Verwendung sowie ein Verfahren zu deren Befüllen und Entleeren.The present invention relates to packaging for adhesives and / or sealants according to the preamble of the patent claim, their use and a method for filling and emptying them.

Kleb- und Dichtstoffe werden für industrielle Großverbraucher in Fässern oder ähnlichen großvolumigen Behältern geliefert, die in der Regel aus Metall sind. Für feuchtigkeits- und/oder lufthärtende Einkomponenten-Klebstoffe müssen diese Verpackungen das Eindringen von Luft bzw. Feuchtigkeit wirksam verhindern, um ein vorzeitiges Aus- oder Anhärten des Kleb-/Dichtstoffes zu vermeiden. Dabei muß diese Dichtigkeit gegen Luft bzw. Feuchtigkeit sowohl während des Befüllens, des Transports, der Lagerung als auch während des Entleerens der Verpackung gewährleistet sein.Adhesives and sealants are supplied for large industrial consumers in drums or similar large-volume containers, which are usually made of metal. For moisture-curing and / or air-curing single-component adhesives, this packaging must effectively prevent the ingress of air or moisture in order to avoid premature curing or hardening of the adhesive / sealant. This tightness against air or moisture must be ensured both during filling, transport, storage and during emptying of the packaging.

Im Rahmen der immer stärker werdenden Auflagen des Umweltschutzes muß zusätzlich gewährleistet sein, daß derartige Verpackungen ganz oder zumindest teilweise wieder verwertet werden können. Die letztgenannte Forderung ist bei feuchtigkeits- und/oder lufthärtenden Kleb-/Dichtstoffen besonders schwierig zu erfüllen, da insbesondere während des Entleerens oder nach dem Entleeren bei pastösen oder dickflüssigen Materialien der Zutritt von Spuren von Luftfeuchtigkeit zu Aushärtungen oder Anhärtungen an der Faßinnenwand führen. Häufig resultieren daraus fest an der Faßinnenwand oder am Faßboden anhaftende Beläge, die eine Reinigung dieser Fässer aufwendig, wenn nicht unmöglich machen. Selbst bei einer stofflichen Verwertung der Fässer als Metallschrott können problematische Verbrennungsprodukte aus den ausgehärteten Kleb-/Dichtstoffresten entstehen.In the context of the increasingly stringent environmental protection requirements, it must also be ensured that such packaging can be recycled in whole or at least in part. The latter requirement is particularly difficult to meet in the case of moisture-curing and / or air-curing adhesives / sealants, since traces are in particular present during emptying or after emptying of pasty or viscous materials from humidity to hardening or hardening on the inside wall of the barrel. Often this results in deposits adhering firmly to the inside wall of the barrel or to the bottom of the barrel, which make cleaning these barrels complex, if not impossible. Even if the barrels are recycled as metal scrap, problematic combustion products can arise from the hardened adhesive / sealant residues.

Die DE-C-3605422 beschreibt ein Verfahren zum Füllen und Leeren eines Behälters für ein fließfähiges Material, wobei dieses Material in eine für das Material dichte flexible Innenverpackung eingefüllt wird. Diese Innenverpackung ist den Abmessungen des äußeren Transportbehälters, in der Regel ein Metallfaß oder Metallhobbock, abgepaßt. Bei diesem Verfahren wird die sackartige Innenverpackung zunächst in einem topfartigen Zwischenbehälter mit einer geeigneten Befülleinrichtung mit dem fließfähigen Material gefüllt. Die Abmessungen des Zwischenbehälters werden etwas kleiner gewählt als die entsprechenden Innenabmessungen des eigentlichen Transportbehälters. Anschließend wird auf die Materialoberfläche eine steife Abdeckplatte aufgelegt und die Innenverpackung an ihrem oberen Ende durch Übereinanderlegen und Verschweißen der Randbereiche dicht verschlossen. Die so gefüllte und verschlossene Innenverpackung wird dann samt Zwischenbehälter um 180° gewendet und auf den etwas größeren Transportbehälter gesetzt, damit die gefüllte und geschlossene Innenverpackung in den Transportbehälter eingeführt wird. Der Transportbehälter wird anschließend mit einem Deckel geschlossen. Nach dem Transport zur Verwendungsstelle wird zur Entnahme des Materials der Deckel entfernt und das Material mit einer geeigneten Fördereinrichtung entnommen. Zweckmäßigerweise ist eine derartige Förderpumpe mit einer Druckfolgeplatte verbunden. Letztere wird nach Einschnitt einer Öffnung in die ebene Oberfläche aufgesetzt, und das zu entnehmende Material unter Zusammenstauchen der Innenverpackung nach oben herausgedrückt. Das Verfahren gemäß DE-C-3605422 ist auch in Adhäsion 1987, Heft 12, S.25-26, ausführlich beschrieben.DE-C-3605422 describes a method for filling and emptying a container for a flowable material, this material being filled into a flexible inner packaging that is tight for the material. This inner packaging is adapted to the dimensions of the outer transport container, usually a metal barrel or metal jack. In this method, the sack-like inner packaging is first filled with the flowable material in a pot-like intermediate container with a suitable filling device. The dimensions of the intermediate container are chosen to be somewhat smaller than the corresponding internal dimensions of the actual transport container. A rigid cover plate is then placed on the material surface and the inner packaging is sealed at its upper end by superimposing and welding the edge areas. The inner packaging filled and closed in this way is then turned together with the intermediate container by 180 ° and placed on the somewhat larger transport container so that the filled and closed inner packaging is introduced into the transport container. The transport container is then closed with a lid. After transport to the point of use, the cover is removed to remove the material and the material is removed with a suitable conveyor. Such a feed pump is expediently connected to a pressure follower plate. The latter is placed in the flat surface after an opening has been cut, and the material to be removed is compressed the inner packaging pushed up. The method according to DE-C-3605422 is also described in detail in Adhäsion 1987 , Issue 12, pp.25-26.

Bei besonders empfindlichen Materialien reicht es nicht aus, daß die Innenverpackung nur gegen das eingefüllte Material dicht ist, die DE-U-8812012 schlägt daher als Innenverpackung Verpackungsbeutel aus mehrlagigen Verbundfolien vor, wobei der Schichtaufbau aus drei Lagen Polymerfolie und einer Lage Metallfolie besteht, um den Kleb-/Dichtstoff noch besser gegen Einwirkung von Feuchtigkeit und/oder Luft zu schützen.In the case of particularly sensitive materials, it is not sufficient that the inner packaging is only sealed against the filled-in material, DE-U-8812012 therefore proposes packaging bags made of multilayer composite films as inner packaging, the layer structure consisting of three layers of polymer film and one layer of metal film To protect the adhesive / sealant even better against exposure to moisture and / or air.

Diese bekannten Verfahren gestatten ein weitgehend rückstandsfreies Entleeren der Transportbehälter, so daß diese nach der Entnahme der entleerten Innenverpackung und nach einer üblichen Rekonditionierung wieder verwendet werden können, soweit es sich um Mehrwegbehälter handelt. Einweg-Transportbehälter können nach Entnahme der entleerten Innenverpackung der stofflichen Wiederverwertung zugeführt werden.These known methods allow a largely residue-free emptying of the transport containers, so that they can be used again after removal of the emptied inner packaging and after normal reconditioning, insofar as the containers are reusable. Disposable transport containers can be recycled after removing the empty inner packaging.

In der Praxis hat sich jedoch gezeigt, daß der bisherige Stand der Technik in einigen wesentlichen Punkten verbesserungsbedürftig ist:

  • Während des Füll-Vorgangs wird die Druckfolgeplatte durch Material beschmutzt. Während des Faßwechsels ist dieses Material der Luftfeuchtigkeit ausgesetzt, so daß es zu Anhärtungen kommt, die bei nachfolgenden Befüllungsvorgängen zu Verunreinigung des Materials in Form von angehärteten Hautfetzen oder durchgehärteten Klumpen im Kleb-/Dichtstoff führt.
  • Die steife Abdeckplatte gemäß DE-C-3605422, in der Praxis wird in der Regel eine Platte aus Polypropylen oder Polyethylen von mindestens 2 mm Stärke genommen, verbleibt in der entleerten Innenverpackung mitsamt der Restmenge des Kleb-/Dichtstoffes, sie ist mit vertretbarem Aufwand nicht wiederverwertbar und verteuert somit die gesamte Innenverpackung beträchtlich. Außerdem erschwert sie die stoffliche Verwertung der Innenverpackung, da sich als Innenverpackung in der Praxis nur mehrlagige Verbundfolien mit einer Metallfolie bewährt haben und somit ein untrennbares Gemisch verschiedener Verpackungsmaterialien vorliegt.
  • Ein Übereinanderlegen und Verschweißen des oberen Endes der Innenverpackung hat sich in der Praxis nicht bewährt, da eine unvermeidliche Kontamination des Wandmaterials der Innenverpackung in dem zu verschweißenden Bereich mit dem Füllmaterial (Kleb-/Dichtstoff) oder mit Hilfsmitteln wie z.B. Gleitmitteln keine Gewähr für eine luft- bzw. feuchtigkeitsdichte Schweißnaht bietet. Man hat sich daher bisher damit beholfen, das obere Ende der Innenverpackung mit Hilfe von mehreren verdrillten Drähten zusammenzuschnüren.
  • Zum Entleeren muß in die Oberfläche der Innenverpackung ein Loch geschnitten werden, durch das der Kleb-/Dichtstoff mit Hilfe einer Druckfolgeplatte unter Zusammenstauchen der Innenverpackung nach oben herausgedrückt wird. Häufig reißt die eingeschnittene Innenverpackung weiter auf, was zu einer unerwünschten Verschmutzung der Druckfolgeplatte am Entleerungsgerät führt.
In practice, however, it has been shown that the current state of the art is in need of improvement in some essential points:
  • During the filling process, the pressure follower plate is soiled by material. During the barrel change, this material is exposed to atmospheric moisture, so that hardening occurs, which leads to contamination of the material in the form of hardened scraps of skin or hardened lumps in the adhesive / sealant in subsequent filling processes.
  • The rigid cover plate according to DE-C-3605422, in practice a plate made of polypropylene or polyethylene of at least 2 mm thickness is usually used in the emptied inner packaging together with the remaining amount of the adhesive / sealant, it is not recyclable with reasonable effort and thus makes the entire inner packaging considerably more expensive. In addition, it complicates the material recycling of the inner packaging, since in practice only multi-layer composite films with a metal foil have proven themselves as inner packaging and thus there is an inseparable mixture of different packaging materials.
  • A stacking and welding of the upper end of the inner packaging has not proven itself in practice, since an inevitable contamination of the wall material of the inner packaging in the area to be welded with the filler (adhesive / sealant) or with aids such as lubricants does not guarantee air - or moisture-proof weld seam offers. So far, it has been used to tie the upper end of the inner packaging together with the help of several twisted wires.
  • For emptying, a hole must be cut in the surface of the inner packaging, through which the adhesive / sealant is pressed upwards with the help of a pressure follower plate and compressing the inner packaging. The incised inner packaging often tears open, which leads to undesired contamination of the pressure follower plate on the emptying device.

Die erfindungsgemäße Aufgabe besteht darin, die bekannten Verpackungen sowie die an sich bekannten Verfahren zum Befüllen und Entleeren dieser Verpackungen so weiterzuentwickeln, daß die oben aufgeführten Nachteile auf möglichst kostengünstige Weise vermieden werden.The object of the invention is to further develop the known packaging and the known methods for filling and emptying this packaging so that the disadvantages listed above are avoided in the most cost-effective way.

Die erfindungsgemäße Lösung der Aufgabe ist den unabhängigen Patentansprüchen 1 und 2 zu entnehmen. Eine Verpackung gemäß dem Oberbegriff der Ansprüche 1 und 2 ist in der DE-C-3605422 beschrieben. Vorteilhafte Ausgestaltungen der erfindungsgemäßen Verpackung, Verfahren zum Füllen und Entleeren der Verpackung sowie eine Verwendung der Verpackung sind in den abhängigen Ansprüchen dargelegt.The achievement of the object according to the invention can be found in independent patent claims 1 and 2. A packaging according to the preamble of claims 1 and 2 is described in DE-C-3605422. Advantageous refinements of the packaging according to the invention, methods for filling and emptying the packaging and use of the packaging are set out in the dependent claims.

Ein Ausfürungsbeispiel der Erfindung wird nachfolgend anhand einer Zeichnung näher erläutert. Dabei zeigt die Zeichnung eine bevorzugte Ausgestaltung der Verpackung sowie die verschiedenen Stadien des Befüllens und Entleerens der Verpackung. Alle Figuren zeigen senkrechte Schnitte durch die Verpackung. Es zeigt:

Figur 1
Das Füllen der Innenverpackung im zwischenbehälter,
Figur 2
Die verschlossene Innenverpackung im Zwischenbehälter,
Figur 3
Die fertig verpackte Innenverpakkung samt Transportverpackung,
Figur 4
Die geöffnete Transportverpackung während des Entleerens beim Anwender.
An exemplary embodiment of the invention is explained in more detail below with reference to a drawing. The drawing shows a preferred embodiment of the packaging and the various stages of filling and emptying the packaging. All figures show vertical cuts through the packaging. It shows:
Figure 1
Filling the inner packaging in the intermediate container,
Figure 2
The closed inner packaging in the intermediate container,
Figure 3
The fully packaged inner packaging including transport packaging,
Figure 4
The opened transport packaging during emptying for the user.

Dabei werden die vom Prinzip her ähnlichen Fördereinrichtungen für das Befüllen und das Entleeren des Materials in gleicher Weise dargestellt.The fundamentally similar conveying devices for filling and emptying the material are shown in the same way.

Gemäß Figur 1 wird in den Zwischenbehälter 1 die Innenverpackung 2 eingeführt. Danach wird die Ronde 3 auf der Druckfolgeplatte 4 befestigt. Die Ronde hat dabei etwas größere Abmessungen als die Druckfolgeplatte, so daß die Ronde über den Randbereich der Druckfolgeplatte hinausgeführt werden kann. Dadurch kann die Ronde an der Druckfolgeplatte mechanisch fixiert werden, z.B. durch Klammerung. Die Ronde enthält eine zentrische Bohrung, die dem Innendurchmesser des Materialförderrohres 5 angepaßt ist. In bevorzugter Ausführung hat die Ronde quadratischen Zuschnitt. Durch diese Ausgestaltung wird sichergestellt, daß die Druckfolgeplatte 4 vor Verunreinigungen durch den in die Innenverpackung einzufüllenden Kleb-/Dichtstoff geschützt wird. Das obere Ende der Innenverpackung 2 wird dabei über den Rand 7 des Zwischenbehälters gezogen, so daß die Innenverpackung glatt und faltenfrei an den Innenwänden des Zwischenbehälters anliegt. Mit Hilfe einer nicht dargestellten Förderpumpe wird dann das Material durch das Materialförderrohr entsprechend den Pfeilen in die Innenverpackung eingefüllt, dabei kann die Druckfolgeplatte entweder mit Hilfe des Niederhalters 6 entsprechend dem Füllstand des Gebindes nach oben bewegt werden. Alternativ kann der Niederhalter 6 die aus Folgeplatte und Materialförderrohr bestehende Einheit starr fixieren, in diesem Fall wird der Zwischenbehälter 1 entsprechend dem Füllgrad nach unten bewegt.According to Figure 1 , the inner packaging 2 is inserted into the intermediate container 1 . Thereafter, the blank is mounted on the pressure follower plate 4. 3 The round blank has somewhat larger dimensions than the pressure follower plate, so that the blank can be guided beyond the edge region of the pressure follower plate. This enables the round blank to be mechanically fixed to the pressure follower plate, for example by clamping. The round blank contains a central bore which is adapted to the inside diameter of the material delivery tube 5 . In a preferred embodiment, the round blank has a square cut. This configuration ensures that the pressure follower plate 4 is protected from contamination by the adhesive / sealant to be filled into the inner packaging. The upper end of the inner packaging 2 is over the edge 7 of the intermediate container pulled so that the inner packaging lies smoothly and wrinkle-free on the inner walls of the intermediate container. With the help of a feed pump, not shown, the material is then filled through the material feed pipe according to the arrows into the inner packaging, the pressure follower plate can either be moved up with the help of the hold-down device 6 according to the fill level of the container. Alternatively, the hold-down device 6 can rigidly fix the unit consisting of the follower plate and the material conveying pipe, in this case the intermediate container 1 is moved downwards in accordance with the degree of filling.

In bevorzugten Ausführungsformen bestehen die Innenverpackung 2 sowie die Ronde 3 aus einem mehrlagigen Verbundmaterial, wobei eine Lage aus einer Metallfolie besteht. Mindestens besteht der Schichtaufbau aus drei Lagen, wobei die Metallfolie zwischen zwei Polymerfolien kaschiert ist. Vorzugsweise bestehen die Lagen der Polymerfolien aus Polyolefinen, z.B. Polypropylen und/oder Polyethylen, die Metallfolie ist vorzugsweise eine Aluminiumfolie. Es können jedoch ohne weiteres auch Innenverpackungen und Ronden mit mehr als zwei Polymerschichten Verwendung finden, in jedem Falle muß eine Metallfolie als Zwischenschicht vorgesehen sein. Als weitere Materalien für die weiteren Polymerfolien kommen z.B. Polyamid oder Polyester in Frage. In besonders bevorzugten Ausführungsformen ist die beutelartige Innenverpakkung so beschaffen, daS sich nach dem Einlegen in den Zwischenbehälter ein vollständig ebener und faltenfreier Bodenbereich ergibt.In preferred embodiments, the inner packaging 2 and the circular blank 3 consist of a multi-layer composite material, one layer consisting of a metal foil. The layer structure consists at least of three layers, the metal foil being laminated between two polymer foils. The layers of the polymer foils preferably consist of polyolefins, for example polypropylene and / or polyethylene, the metal foil is preferably an aluminum foil. However, inner packaging and circular blanks with more than two polymer layers can also be used without any problems, in any case a metal foil must be provided as an intermediate layer. Other materials for the further polymer films are, for example, polyamide or polyester. In particularly preferred embodiments, the bag-like inner packaging is designed in such a way that a completely flat and wrinkle-free bottom area results after insertion into the intermediate container.

Nach vollständiger Befüllung der Verpackung wird die Fixierung der Ronde 3 von der Druckfolgeplatte 4 gelöst und die Ronde verbleibt als schützende Abdeckung auf der Oberfläche des Kleb-/Dichtstoffes.After the packaging has been completely filled, the fixing of the circular blank 3 is released from the pressure follower plate 4 and the circular blank remains as a protective cover on the surface of the adhesive / sealant.

Figur 2 zeigt die verschlossene Innenverpackung 2 in dem Zwischenbehälter 1. Überraschenderweise hat es sich gezeigt, daß bei Verwendung der oben genannten Verbundmaterialien für die Innenverpackung 2 und die Ronde 3 das obere Ende der Innenverpackung nur gemäß 8 umgelegt und gefaltet werden muß und nicht verschweißt zu werden braucht, um einen sicheren Schutz des Kleb-/Dichtstoffes vor dem Eintritt von Feuchtigkeit und/oder Luftsauerstoff zu gewährleisten. Dies bedeutet eine wesentliche Arbeitserleichterung und Kosteneinsparung. FIG. 2 shows the closed inner packaging 2 in the intermediate container 1 . Surprisingly, it has been found that when using the above-mentioned composite materials for the inner packaging 2 and the circular blank 3, the upper end of the inner packaging only has to be folded and folded in accordance with FIG. 8 and does not need to be welded in order to ensure reliable protection of the adhesive / sealant before the ingress of moisture and / or atmospheric oxygen. This means a significant reduction in workload and cost savings.

Entsprechend dem Pfeil 10 wird die gefüllte und verschlossene Innenverpackung sodann durch Umstülpen in die Transportverpackung 9 eingeführt.According to arrow 10 , the filled and closed inner packaging is then inserted into the transport packaging 9 by turning it inside out.

Wie aus Figur 3 ersichtlich, wird vor dem Verschließen der Transportverpackung oben auf die plane Oberfläche der Innenverpackung eine Abdeckscheibe 12 mit einem zentrischen Loch 13 gelegt. Die Funktion dieser Scheibe wird weiter unten näher erläutert. Die Materialbeschaffenheit dieser Abdeckscheibe ist von untergeordneter Bedeutung, so daß hier vorzugsweise preiswerte und leicht zu entsorgende Materialien, wie z.B. Pappscheiben Verwendung finden. Abschließend wird der Transportbehälter 9 mit dem Deckel 11 verschlossen.As can be seen from FIG. 3 , a cover disk 12 with a central hole 13 is placed on top of the flat surface of the inner packaging before the transport packaging is closed. The function of this disc is explained in more detail below. The material properties of this cover pane are of minor importance, so that inexpensive and easy-to-dispose materials such as cardboard disks are preferably used here. Finally, the transport container 9 is closed with the lid 11 .

In Figur 4 sind die Verhältnisse während der Entleerung der Verpackung beim Anwender dargestellt. Der Deckel 11 ist entfernt, unter Ausnutzung der Abdeckscheibe 12 als Schablone wurde deckungsgleich mit dem zentrischen Loch 13 ein Loch 14 in die Innenverpackung geschnitten. Durch den Niederhalter 6 wird die Druckfolgeplatte 4 nach unten auf die flexible Innenverpackung 2 gedrückt, wodurch der Kleb-/Dichtstoff durch das Materialförderrohr 5 zu einer nicht dargestellten Pumpe gefördert wird und von dort aus weiter zur Applikationsanlage gefördert wird. Dabei verhindert die Abdeckplatte 12 mit Sicherheit eine Kontamination der Druckfolgeplatte 4 durch den Kleb-/Dichtstoff auch für den Fall, daß die Wandung der Innenverpackung 2 unter dem hohen Förderdruck weiter einreißt. Derartige Verschmutzungen werden ohne eine Abdeckplatte 12 sehr häufig beobachtet. FIG. 4 shows the conditions during the emptying of the packaging by the user. The lid 11 is removed, using the cover plate 12 as a template, a hole 14 was cut in the inner packaging in a congruent manner with the central hole 13 . The hold-down device 6 presses the pressure follower plate 4 down onto the flexible inner packaging 2 , as a result of which the adhesive / sealant is conveyed through the material feed pipe 5 to a pump (not shown) and from there is further conveyed to the application system. This prevents the cover plate 12 certainly contaminates the pressure follower plate 4 by the adhesive / sealant even in the event that the wall of the inner packaging 2 further tears under the high delivery pressure. Such contamination is observed very often without a cover plate 12 .

Während des Entleerungsvorganges faltet sich die flexible Innenverpackung 2 unterhalb der Druckfolgeplatte 4 zieharmonikaartig zusammen 15.During the emptying process, the flexible inner packaging 2 folds below the pressure follower plate 4 like an accordion 15 .

Überraschenderweise reicht die Steifigkeit einer Ronde 3 aus der gleichen Verbundfolie wie die Innenverpackung 2 aus, ohne daß diese Ronde 3 am Ende des Entleerungsvorganges in das Materialförderrohr 5 gelangen kann.Surprisingly, the stiffness of a circular blank 3 made of the same composite film as the inner packaging 2 is sufficient without this circular blank 3 being able to get into the material conveying tube 5 at the end of the emptying process.

Die erfindungsgemäße Ausführung der Verpackung ermöglicht somit eine besonders ökonomische Verpackungsform, insbesondere für luft- und/oder feuchtigkeitsempfindliche, pastöse und/oder hochviskose Kleb-/Dichtstoffe, da das arbeitsaufwendige und unzuverlässige Verschließen der Innenverpackung z.B. durch Verschweißen oder Verdrillen mit Drähten entfällt, außerdem lassen sich die Reste der Innenverpackung nach dem Entleeren einfacher und kostengünstiger entsorgen. Die Ronde 3 und die Innenverpackung 2 bestehen aus dem gleichen Material, so daß eine stoffliche Wiederverwertung erleichtert wird. Die Abdeckplatte 12 besteht vorzugsweise aus einer preiswerten und leicht zu entsorgenden Pappscheibe.The design of the packaging according to the invention thus enables a particularly economical form of packaging, in particular for air and / or moisture-sensitive, pasty and / or highly viscous adhesives / sealants, since the labor-intensive and unreliable sealing of the inner packaging, for example by welding or twisting with wires, is also eliminated the remains of the inner packaging can be disposed of more easily and cost-effectively after emptying. The blank 3 and the inner packaging 2 are made of the same material, so that recycling is facilitated. The cover plate 12 preferably consists of an inexpensive and easy to dispose of cardboard disc.

Viele Kleb-/Dichtstoffe im Automobilbau, insbesondere auch solche für die Scheibendirektverglasung, sind sehr hochviskos, so daß zur Erleichterung der Förderung die Druckfolgeplatte und die nachfolgenden Förderschläuche und/oder -rohre beheizt werden. Auch für diese Art der Entleerung ist die erfindungsgemäße Verpackung geeignet.Many adhesives / sealants in automotive engineering, especially those for direct glazing, are very highly viscous, so that the pressure follower plate and the subsequent delivery hoses and / or pipes are heated to facilitate conveying. The packaging according to the invention is also suitable for this type of emptying.

Durch die Erfindung ist also eine Verpackung und ein Verfahren für das Befüllen und Entleeren von Behältern für fließfähige Kleb-/Dichtstoffe geschaffen, die auf besonders kostengünstige Art die Handhabung von insbesondere luft- und/oder feuchtigkeitsempfindlichen Materialien ermöglicht, und dabei den Erfordernissen des Umweltschutzes Rechnung trägt.The invention thus provides packaging and a method for filling and emptying containers for flowable adhesives / sealants, which enables the handling of particularly air and / or moisture-sensitive materials in a particularly cost-effective manner, while taking account of the requirements of environmental protection wearing.

Claims (13)

  1. A pack for adhesives and/or sealants containing a drum-like transport container (9) and a bag-like inner pack (2) of composite film, characterized by a cover disk (12) with a central hole (13) and a film-like disk (3) of a composite film, the cover disk (12) being disposed between the lid (11) of the transport container (9) and the surface of the inner pack (2), the film-like disk (3) having a central hole and a larger diameter than the transport container (9) and being arranged between the adhesive/sealant and the folded layers (8) of the open end of the inner pack (2) in the filled state thereof.
  2. A pack for adhesives and/or sealants containing a drum-like temporary container (1) and a bag-like inner pack (2) of composite film, the temporary container (1) being provided to transfer the filled inner pack (2) to a drum-like transport container (9), characterized by a film-like disk (3) of a composite film which has a central hole and a larger diameter than the temporary container (1), the film-like disk (3) being arranged between the adhesive/sealant and the folded layers (8) of the open end of the inner pack (2) in the filled state thereof.
  3. A pack as claimed in claim 1 or 2, characterized in that the inner pack (2) has a flat base.
  4. A pack as claimed in claim 1, 2 or 3, characterized in that the inner pack (2) and the disk (3) consist of a three-layer composite film, the inner pack and the disk preferably consisting of the same composite film.
  5. A pack as claimed in claim 4, characterized in that the three-layer composite film consists of two polymer layers with a metal layer in between.
  6. A pack as claimed in claim 5, characterized in that the polymer layers are polyolefin layers and the metal layer is an aluminium layer.
  7. A pack as claimed in claim 6, characterized in that polyethylene and/or polypropylene is used as the polyolefin.
  8. A pack as claimed in claim 1 or 2, characterized in that the composite film consists of more than three layers and at least one of the middle layers is a metal layer.
  9. A pack as claimed in claim 1 or 2, characterized in that the more than two polymer layers of the composite film consist of polyamide and/or polyester.
  10. A pack as claimed in claim 1 or 3, characterized in that the cover disk (12) consists of cardboard.
  11. A method of filling the pack claimed in at least one of claims 1 to 10 using a pressure follower plate (4), characterized in that the pressure follower plate (4) is covered by the disk (3), the adhesive/sealant is first introduced into an inner pack (2) inserted into a temporary container (1), after which the disk (3) is separated from the pressure follower plate (4), the inner pack (2) is closed at its upper end above the disk (3) and is then introduced into a drum-like transport container (9) and, at the same time, turned through 180° so that the filling opening of the inner pack is at the bottom of the transport container (9) and the upper end of the inner pack (2) is provided with a flat cover disk (12).
  12. A method of emptying the pack claimed in at least one of claims 1 to 10 using an optionally heated pressure follower plate (4), characterized in that the inner pack (2) is locally opened (14) at its upper end by means of the cover disk (2) as a template, after which the pressure follower plate (4) is applied to the cover disk (12) lying on top of the inner pack (2).
  13. The use of the pack claimed in at least one of claims 1 to 10 for packing reactive adhesives and/or sealants.
EP93917734A 1992-08-12 1993-08-04 Package for adhesives and/or sealing materials Expired - Lifetime EP0654002B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4226644A DE4226644A1 (en) 1992-08-12 1992-08-12 Packaging for adhesives and / or sealants
DE4226644 1992-08-12
PCT/EP1993/002067 WO1994004439A1 (en) 1992-08-12 1993-08-04 Package for adhesives and/or sealing materials

Publications (2)

Publication Number Publication Date
EP0654002A1 EP0654002A1 (en) 1995-05-24
EP0654002B1 true EP0654002B1 (en) 1996-01-31

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EP93917734A Expired - Lifetime EP0654002B1 (en) 1992-08-12 1993-08-04 Package for adhesives and/or sealing materials

Country Status (8)

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US (1) US5651460A (en)
EP (1) EP0654002B1 (en)
JP (1) JPH08500074A (en)
AT (1) ATE133631T1 (en)
CA (1) CA2142321A1 (en)
DE (2) DE4226644A1 (en)
ES (1) ES2083297T3 (en)
WO (1) WO1994004439A1 (en)

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Also Published As

Publication number Publication date
ATE133631T1 (en) 1996-02-15
JPH08500074A (en) 1996-01-09
EP0654002A1 (en) 1995-05-24
DE4226644A1 (en) 1994-02-17
WO1994004439A1 (en) 1994-03-03
DE59301565D1 (en) 1996-03-14
ES2083297T3 (en) 1996-04-01
US5651460A (en) 1997-07-29
CA2142321A1 (en) 1994-03-03

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