EP2233405A1 - Shrink-wrap package and method for its manufacture - Google Patents

Shrink-wrap package and method for its manufacture Download PDF

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Publication number
EP2233405A1
EP2233405A1 EP10153870A EP10153870A EP2233405A1 EP 2233405 A1 EP2233405 A1 EP 2233405A1 EP 10153870 A EP10153870 A EP 10153870A EP 10153870 A EP10153870 A EP 10153870A EP 2233405 A1 EP2233405 A1 EP 2233405A1
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EP
European Patent Office
Prior art keywords
film
overlap
package
webs
blanks
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10153870A
Other languages
German (de)
French (fr)
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EP2233405B1 (en
Inventor
Manuel Kollmuss
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Krones AG
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Krones AG
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Filing date
Publication date
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Publication of EP2233405A1 publication Critical patent/EP2233405A1/en
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Publication of EP2233405B1 publication Critical patent/EP2233405B1/en
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Classifications

    • 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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/14—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for incorporating, or forming and incorporating, handles or suspension means in packages
    • 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
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/06—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths
    • 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
    • B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
    • B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
    • 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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
    • 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
    • B65D71/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans or pop bottles; Bales of material
    • B65D71/06—Packaging elements holding or encircling completely or almost completely the bundle of articles, e.g. wrappers
    • B65D71/08—Wrappers shrunk by heat or under tension, e.g. stretch films or films tensioned by compressed articles
    • 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
    • B65D2571/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans, pop bottles; Bales of material
    • B65D2571/00123—Bundling wrappers or trays
    • B65D2571/00432—Handles or suspending means
    • B65D2571/00456—Handles or suspending means integral with the wrapper
    • B65D2571/00462—Straps made by two slits in a wall
    • 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
    • B65D2571/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans, pop bottles; Bales of material
    • B65D2571/00123—Bundling wrappers or trays
    • B65D2571/00648—Elements used to form the wrapper
    • B65D2571/00672—Films
    • B65D2571/00679—Shrink films

Definitions

  • the present invention relates to a method for producing a shrinkage package.
  • the invention relates to a method in which film blanks are divided off from a shrinkable film transversely to a longitudinal direction of the film.
  • the foil blanks are each wound around at least two articles.
  • the foil blanks are shrunk onto the wrapped articles to thereby obtain the shrinkage package.
  • the invention also relates to a shrinkage package.
  • the invention relates to a shrinkage package comprising at least two articles which are wrapped with a shrinkable film.
  • the prior art discloses methods and devices for packaging articles (packaged goods) which use a shrink film as the packaging wrapper for the articles.
  • This shrink film is usually provided as a continuous material on rolls.
  • the width of the shrink film is chosen so that it is wider by a specific amount than the base of the packaged and enveloped article.
  • two or more packages can be made in parallel by providing the film with a width corresponding to twice or more than one width of a single package.
  • the film is then divided in the device by a cutting unit into two or more film webs.
  • the divided film webs are brought to a distance from one another by means of a film spreading unit, which is determined from the distance of the package deformations to be packaged in the device.
  • the shrink film is separated within the packaging device according to the container dimensions.
  • the foil blanks are then wrapped around the articles by means of a wrapping system within the device. Subsequently, the containers are transported through a shrink tunnel, whereby the shrink film conforms to the article and the finished shrink wrap arise.
  • a disadvantage of a shrinkage package is that it has no structural features, e.g. suitable for a carrying handle.
  • the prior art discloses methods and devices that provide such a carrying handle.
  • the patent application FR 2602748 A1 discloses a shrink wrap around containers.
  • a carrying handle is formed from an annular strip which is wound in an intermediate plane separating the rows of containers.
  • the annular strip is positioned on the outside of the packaging film in a dimple formed between the rows of containers. Reinforcing strips may also be provided to prevent the film from being undesirably stretched or even ruptured in the areas where the strip is near the film at container corners.
  • a disadvantage of the prior art is that for applying the strip, a further machine and additional complex steps are necessary.
  • the already pre-fabricated wrapping material can only be used for a single container type. For other types of containers, it is always necessary to retrofit the machine.
  • the patent application US 3,866,386 A discloses an apparatus and method for making a shrinkage package for articles.
  • At least one additional reinforcing element is introduced near this film area, before the articles are wrapped with a foil blank.
  • the reinforcing element may be, for example, a coating, a reinforcing rib or a drape of the film.
  • the foil blank is integral for a single container.
  • the object of the invention is to provide a method with which without additional design effort, quickly, with a few steps and low material usage, and thus cost, a method for producing a shrinkage package is specified with a carrying handle.
  • the object of the invention is also to provide a shrink container with a carrying handle that requires little use of materials and is inexpensive.
  • the film is divided into at least two film webs along the longitudinal direction of the film either before it is divided into film blanks, but at least before the heat-shrinking process. Then, at least two adjacent film webs are gathered together at their adjacent edges in the longitudinal direction so as to form an overlap with a width at the adjacent edges. The overlap causes the film to double in these areas, even after the shrinking process.
  • a reinforced foil strip is obtained, which serves as a stable carrying handle for the respective shrinkage package and which as a whole also circulates around the container. It is advantageous that no additional material strip is needed for a carrying handle.
  • the overlap or the perforations may be characterized by optically recognizable features on the film, for example color.
  • FIG. 1 shows a plan view of a film which is divided into two film webs.
  • FIG. 2 shows a plan view of a film blank, the two film web blanks have formed an overlap.
  • FIG. 4 shows a plan view of a film which is divided into four film webs.
  • FIG. 1 shows a plan view of a film 3, which is divided into two film webs 4, 5.
  • the film 3 is supplied, for example, from a roll (not shown).
  • the film 3 is divided with a cut by means of a cutting unit (not shown) along the section line 8 into two film webs 4, 5 of equal width.
  • the film web 4 has a lower edge 14, the film web 5 an upper edge 15, wherein the edges 14, 15 coincide before the film pitch.
  • a film guiding unit 12 brings the divided film webs 4, 5 together at their adjacent edges 14, 15 in the longitudinal direction 30, that is to say in their middle towards one another. This results in an overlap 9 of the two webs 4, 5 with a width 31.
  • a cutting unit 13 successively separates, with respect to the longitudinal direction 30, one foil blank 10 after the other from the foil 3, wherein FIG. 1 only a single foil blank 10 is shown.
  • Each foil blank 10 is essentially in two parts, consisting of a cut-away blank of the foil web 4 and a cut-away blank of the foil web 5.
  • the foil blank 10 also has the overlap 9.
  • the two overlapping film areas of the overlap 9 also remain one above the other, so that the overlap is then stored as a stable carrying handle 20 of the shrinkage package 1 (see FIG FIG. 3 ) suitable is.
  • the overlap 9 is shown visually recognizable on the film 3 by hatching in the embodiment shown here.
  • FIG. 2 shows again a plan view of the film blank 10 according to FIG. 1 , wherein the side of the overlap 9 perforations 24, 25 are introduced into the film blank 10, by means of which a user easier in the formed by the overlap 9 carrying handle 20 (see FIG. 1 ) can grab.
  • the perforations 24, 25 have in the embodiment shown here a distance from the overlap 9, which corresponds to at least half of the width 31.
  • FIG. 3 shows a perspective view of a shrinkage package 1 with a handle 20, which is formed by the overlap 9 of the two film web blanks 4, 5 of the film blank 10.
  • At least two articles 2 are with the film blank 10 after FIG. 1 or 2 so wrapped that they form the shrinkage container 1 and the overlap 9 after FIG. 1 or 2 of the two film web blanks 4, 5 forms the carrying handle 20 for the shrinkage package 1.
  • FIG. 4 shows a plan view of a film 3, which is divided with three sections along the cutting lines 8, 18, 28 in four film webs 4, 5, 6, 7 of equal width.
  • the upper two adjacent film webs 4, 5 have an overlap 9 and the lower two adjacent film webs 6, 7 also have an overlap 9.
  • the pair 4, 5 forms the film wrapping material for each shrinkage package 1 and the pair 6, 7 forms the film wrapping material for another shrinkage package 1.
  • the pairs 4, 5 and 6, 7 can be wound and shrunk around the respective articles 2 in parallel with the respective film wrapping material.
  • the two film wrapping materials are the two film blanks 10, 11.
  • the film web 4 has a lower edge 14, the film web 5 an upper edge 15, wherein the edges 14, 15 coincide before the film pitch.
  • the film web 6 has a lower edge 16, the film web 7 an upper edge 17, wherein the edges 16, 17 coincide before the film pitch.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Wrappers (AREA)

Abstract

The method involves cutting off pre-cut films (10) of a shrinkable film (3) along a longitudinal direction (30) for forming two film webs (4, 5) along the longitudinal direction of the film. Other two adjacent film webs (6, 7) are brought together at adjacent sides in longitudinal direction such that the film webs form an overlap (9) with a defined width at the adjacent sides. The pre-cut films are wrapped around two articles (2). The pre-cut films on the wrapped articles are shrunk to form a shrink pack (1). An independent claim is also included for a shrink pack comprising two pre-cut films.

Description

Die vorliegende Erfindung betrifft ein Verfahren zum Herstellen eines Schrumpfgebindes. Die Erfindung betrifft insbesondere ein Verfahren, bei dem von einer schrumpfbaren Folie Folienzuschnitte quer zu einer Längsrichtung der Folie abgeteilt werden. Die Folienzuschnitte werden jeweils um mindestens zwei Artikel gewickelt. Die Folienzuschnitte werden auf die umwickelten Artikel aufgeschrumpft um dadurch das Schrumpfgebinde zu erhalten.The present invention relates to a method for producing a shrinkage package. In particular, the invention relates to a method in which film blanks are divided off from a shrinkable film transversely to a longitudinal direction of the film. The foil blanks are each wound around at least two articles. The foil blanks are shrunk onto the wrapped articles to thereby obtain the shrinkage package.

Die Erfindung betrifft auch ein Schrumpfgebinde. Die Erfindung betrifft insbesondere ein Schrumpfgebinde, das mindestens zwei Artikel umfasst, die mit einer schrumpfbaren Folie umwickelt sind.The invention also relates to a shrinkage package. In particular, the invention relates to a shrinkage package comprising at least two articles which are wrapped with a shrinkable film.

Aus dem Stand der Technik sind Verfahren und Einrichtungen zum Verpacken von Artikeln (Verpackungsgut) bekannt, die als Verpackungshülle für die Gegenstände eine Schrumpffolie verwenden. Diese Schrumpffolie wird üblicherweise als Endlosmaterial auf Rollen bereit gestellt. Die Breite der Schrumpffolie wird so gewählt, dass sie um ein spezifisches Maß breiter als die Grundfläche der zu einem Gebinde zusammengestellten und einzuhüllenden Artikel ist.The prior art discloses methods and devices for packaging articles (packaged goods) which use a shrink film as the packaging wrapper for the articles. This shrink film is usually provided as a continuous material on rolls. The width of the shrink film is chosen so that it is wider by a specific amount than the base of the packaged and enveloped article.

In einer bekannten Einrichtung können parallel zwei oder mehr Gebinde hergestellt werden, indem die Folie mit einer Breite zur Verfügung gestellt wird, die entsprechend der doppelten oder mehrfachen Breite eines einzelnen Gebindes entspricht. Die Folie wird dann in der Einrichtung durch eine Schneideeinheit in zwei oder mehr Folienbahnen aufgeteilt. Die geteilten Folienbahnen werden mittels einer Folienspreizeinheit auf einen Abstand zueinander gebracht, der aus dem Abstand der zu verpackenden Gebindeformationen in der Einrichtung ermittelt wird.In a known device, two or more packages can be made in parallel by providing the film with a width corresponding to twice or more than one width of a single package. The film is then divided in the device by a cutting unit into two or more film webs. The divided film webs are brought to a distance from one another by means of a film spreading unit, which is determined from the distance of the package deformations to be packaged in the device.

Die Schrumpffolie wird innerhalb der Verpackungseinrichtung entsprechend der Gebindeabmessungen vereinzelt. Die Folienzuschnitte werden dann mittels eines Einschlagsystems innerhalb der Einrichtung um die Artikel herumgewickelt. Anschließend werden die Gebinde durch einen Schrumpftunnel transportiert, wodurch sich die Schrumpffolie an die Artikel anschmiegt und die fertigen Schrumpfgebinde entstehen.The shrink film is separated within the packaging device according to the container dimensions. The foil blanks are then wrapped around the articles by means of a wrapping system within the device. Subsequently, the containers are transported through a shrink tunnel, whereby the shrink film conforms to the article and the finished shrink wrap arise.

Nachteilig an einem Schrumpfgebinde ist, dass es keine strukturellen Merkmale aufweist, die sich z.B. für einen Tragegriff eignen. Im Stand der Technik sind jedoch Verfahren und Einrichtungen bekannt, die einen solchen Tragegriff zur Verfügung stellen.A disadvantage of a shrinkage package is that it has no structural features, e.g. suitable for a carrying handle. However, the prior art discloses methods and devices that provide such a carrying handle.

Die Patentanmeldung FR 2602748 A1 offenbart eine Schrumpffolienverpackung um Behälter. Ein Tragegriff wird aus einem ringförmigen Streifen geformt, der in einer Zwischenebene gewunden wird, die die Reihen von Behältern trennt. Der ringförmige Streifen ist auf der Außenseite der Verpackungsfolie in einer Eindellung positioniert, die zwischen den Behälterreihen ausgeformt ist. Verstärkungsstreifen können ebenfalls vorgesehen sein, die verhindern, dass die Folie in den Bereichen, in denen der Streifen nahe der Folie an Behälterecken ist, unerwünscht gedehnt wird oder sogar reißt.The patent application FR 2602748 A1 discloses a shrink wrap around containers. A carrying handle is formed from an annular strip which is wound in an intermediate plane separating the rows of containers. The annular strip is positioned on the outside of the packaging film in a dimple formed between the rows of containers. Reinforcing strips may also be provided to prevent the film from being undesirably stretched or even ruptured in the areas where the strip is near the film at container corners.

Die Patentanmeldung US 4,700,528 A offenbart ein Verfahren zur Herstellung eines Schrumpfgebindes für zu verpackende Artikel, bei dem ein separater Tragegriff in Form eines Streifens auf die Verpackungsfolie aufgebracht wird. Zu beiden Seiten des mittleren Bereichs des Streifens wird jeweils ein Folienbereich geschwächt, so dass dort während des nachfolgenden Schrumpfprozesses Öffnungen in der Folie gebildet werden, die als Eingriffe für einen Benutzer dienen.The patent application US 4,700,528 A discloses a method for producing a shrinkable package for articles to be packaged, wherein a separate handle in the form of a strip is applied to the packaging film. On either side of the central area of the strip, one foil area is weakened, so that openings are formed in the foil during the subsequent shrinking process, which serve as interventions for a user.

Nachteilig beim Stand der Technik ist, dass zum Aufbringen der Streifen eine weitere Maschine und zusätzliche aufwändige Arbeitsschritte notwendig sind. Hinzu kommt, dass das bereits vorkonfektionierte Einschlagmaterial nur für einen einzigen Gebindetyp verwendet werden können. Für andere Gebindetypen ist immer eine Umrüstung der Maschine erforderlich.A disadvantage of the prior art is that for applying the strip, a further machine and additional complex steps are necessary. In addition, the already pre-fabricated wrapping material can only be used for a single container type. For other types of containers, it is always necessary to retrofit the machine.

Die Patentanmeldung US 3,866,386 A offenbart eine Vorrichtung und ein Verfahren zur Herstellung eines Schrumpfgebindes für Artikel. Zur Verstärkung eines Folienbereichs, in dem Haltelöcher eingebracht werden, wird mindestens ein zusätzliches Verstärkungselement nahe diesem Folienbereich eingebracht, bevor die Artikel mit einem Folienzuschnitt umwickelt werden. Das Verstärkungselement kann beispielsweise eine Beschichtung, eine Verstärkungsrippe oder ein Faltenwurf der Folie sein. Dabei ist der Folienzuschnitt für ein einzelnes Gebinde einstückig.The patent application US 3,866,386 A discloses an apparatus and method for making a shrinkage package for articles. To reinforce a film area, in which retaining holes are introduced, at least one additional reinforcing element is introduced near this film area, before the articles are wrapped with a foil blank. The reinforcing element may be, for example, a coating, a reinforcing rib or a drape of the film. The foil blank is integral for a single container.

Aufgabe der Erfindung ist, ein Verfahren anzugeben, mit dem ohne zusätzlichen konstruktiven Aufwand, schnell, mit wenigen Arbeitsschritten und geringem Materialeinsatz, und somit kostengünstig, ein Verfahren zum Herstellen eines Schrumpfgebindes mit einem Tragegriff angegeben wird.The object of the invention is to provide a method with which without additional design effort, quickly, with a few steps and low material usage, and thus cost, a method for producing a shrinkage package is specified with a carrying handle.

Die obige Aufgabe wird durch ein Verfahren gelöst, das die Merkmale des Patentanspruchs 1 umfasst.The above object is achieved by a method comprising the features of claim 1.

Aufgabe der Erfindung ist auch, ein Schrumpfgebinde mit einem Tragegriff anzugeben, das wenig Materialeinsatz benötigt und kostengünstig ist.The object of the invention is also to provide a shrink container with a carrying handle that requires little use of materials and is inexpensive.

Die obige Aufgabe wird durch ein Schrumpfgebinde gelöst, das die Merkmale des Patentanspruchs 8 umfasst.The above object is achieved by a shrinkage package comprising the features of claim 8.

Bei dem erfindungsgemäßen Verfahren wird die Folie entweder vor ihrer Aufteilung in Folienzuschnitte, jedoch mindestens vor dem Aufschrumpfprozess in mindestens zwei Folienbahnen entlang der Längsrichtung der Folie geteilt. Dann werden mindestens zwei benachbarte Folienbahnen derart an ihren benachbarten Rändern in der Längsrichtung zusammengeführt, dass sie an den benachbarten Rändern eine Überlappung mit einer Breite bilden. Die Überlappung bewirkt, dass die Folie in diesen Bereichen doppelt liegt, auch nach dem Schrumpfprozess. Somit erhält man nach dem Schrumpfprozess in diesem Bereich der Folie einen verstärkten Folienstreifen, der als stabiler Tragegriff für das jeweilige Schrumpfgebinde dient und der auch als ganzes um das Gebinde umläuft. Vorteilhaft ist, dass kein zusätzlicher Materialstreifen für einen Tragegriff benötigt wird.In the method according to the invention, the film is divided into at least two film webs along the longitudinal direction of the film either before it is divided into film blanks, but at least before the heat-shrinking process. Then, at least two adjacent film webs are gathered together at their adjacent edges in the longitudinal direction so as to form an overlap with a width at the adjacent edges. The overlap causes the film to double in these areas, even after the shrinking process. Thus, after the shrinking process in this area of the film, a reinforced foil strip is obtained, which serves as a stable carrying handle for the respective shrinkage package and which as a whole also circulates around the container. It is advantageous that no additional material strip is needed for a carrying handle.

Zum einfachen optischen Erkennen, wo die Überlappung auf der Folie ausgebildet werden soll bzw. wo ein Benutzer die Perforationen aufreißen soll, um die Überlappung als Tragegriff zu verwenden, können die Überlappung bzw. die Perforationen durch optisch erkennbare Merkmale auf der Folie gekennzeichnet sein, beispielsweise farblich.For easy optical recognition, where the overlap on the film is to be formed or where a user is to tear the perforations in order to use the overlap as a carrying handle, the overlap or the perforations may be characterized by optically recognizable features on the film, for example color.

Im Folgenden sollen Ausführungsbeispiele die Erfindung und ihre Vorteile anhand der beigefügten Figuren näher erläutern. Die Größenverhältnisse der einzelnen Elemente zueinander in den Figuren entsprechend nicht immer den realen Größenverhältnissen, da einige Formen vereinfacht und andere Formen zur besseren Veranschaulichung vergrößert im Verhältnis zu anderen Elementen dargestellt sind.In the following, embodiments of the invention and their advantages with reference to the accompanying figures will be explained in more detail. The proportions of the individual elements to one another in the figures do not always correspond to the actual size ratios, since some shapes are simplified and other shapes are enlarged in relation to other elements for better illustration.

Figur 1 zeigt eine Draufsicht einer Folie, die in zwei Folienbahnen geteilt wird. FIG. 1 shows a plan view of a film which is divided into two film webs.

Figur 2 zeigt eine Draufsicht eines Folienzuschnitts, dessen zwei Folienbahnzuschnitte eine Überlappung ausgebildet haben. FIG. 2 shows a plan view of a film blank, the two film web blanks have formed an overlap.

Figur 3 zeigt eine Perspektivansicht eines Schrumpfgebindes mit einem Tragegriff, der durch eine Überlappung von zwei Folienbahnzuschnitten eines Folienzuschnitts gebildet ist. FIG. 3 shows a perspective view of a shrinkage package with a carrying handle, which is formed by an overlap of two film web blanks of a film blank.

Figur 4 zeigt eine Draufsicht einer Folie, die in vier Folienbahnen geteilt wird. FIG. 4 shows a plan view of a film which is divided into four film webs.

Für gleiche oder gleich wirkende Elemente der Erfindung werden identische Bezugszeichen verwendet. Ferner werden der Übersicht halber nur Bezugszeichen in den einzelnen Figuren dargestellt, die für die Beschreibung der jeweiligen Figur erforderlich sind. Die dargestellten Ausführungsformen stellen lediglich Beispiele da, wie die erfindungsgemäße Vorrichtung ausgestaltet sein kann und stellen keine abschließende Begrenzung da.For identical or equivalent elements of the invention, identical reference numerals are used. Furthermore, for the sake of clarity, only reference symbols are shown in the individual figures, which are required for the description of the respective figure. The illustrated embodiments merely provide examples of how the device according to the invention can be designed and provide no final limitation.

Figur 1 zeigt eine Draufsicht einer Folie 3, die in zwei Folienbahnen 4, 5 geteilt wird. Die Folie 3 wird beispielsweise von einer Rolle (nicht dargestellt) geliefert. In der hier gezeigten Ausführungsform wird die Folie 3 mit einem Schnitt mittels einer Schneideeinheit (nicht dargestellt) entlang der Schnittlinie 8 in zwei Folienbahnen 4, 5 gleicher Breite geteilt. FIG. 1 shows a plan view of a film 3, which is divided into two film webs 4, 5. The film 3 is supplied, for example, from a roll (not shown). In the embodiment shown here, the film 3 is divided with a cut by means of a cutting unit (not shown) along the section line 8 into two film webs 4, 5 of equal width.

Die Folienbahn 4 weist einen unteren Rand 14, die Folienbahn 5 einen oberen Rand 15 auf, wobei die Ränder 14, 15 vor der Folienteilung zusammenfallen. Eine Folienführungseinheit 12 führt die geteilten Folienbahnen 4, 5 an ihren benachbarten Rändern 14, 15 in der Längsrichtung 30 zusammen, das heißt in deren Mitte aufeinander zu. Dadurch entsteht eine Überlappung 9 der beiden Bahnen 4, 5 mit einer Breite 31.The film web 4 has a lower edge 14, the film web 5 an upper edge 15, wherein the edges 14, 15 coincide before the film pitch. A film guiding unit 12 brings the divided film webs 4, 5 together at their adjacent edges 14, 15 in the longitudinal direction 30, that is to say in their middle towards one another. This results in an overlap 9 of the two webs 4, 5 with a width 31.

Eine Schneideeinheit 13 trennt jeweils nacheinander bzgl. der Längsrichtung 30 einen Folienzuschnitt 10 nach dem anderen von der Folie 3 ab, wobei in Figur 1 nur ein einzelner Folienzuschnitt 10 dargestellt ist. Jeder Folienzuschnitt 10 ist im Wesentlichen zweiteilig, bestehend aus einem abgeschnitten Zuschnitt der Folienbahn 4 und einem abgeschnitten Zuschnitt der Folienbahn 5. Der Folienzuschnitt 10 weist ebenfalls die Überlappung 9 auf. Durch den Schrumpfprozess bleiben auch die beiden übereinander liegenden Folienbereiche der Überlappung 9 übereinander, so dass die Überlappung dann als stabiler Tragegriff 20 des Schrumpfgebindes 1 (siehe Figur 3) geeignet ist.A cutting unit 13 successively separates, with respect to the longitudinal direction 30, one foil blank 10 after the other from the foil 3, wherein FIG. 1 only a single foil blank 10 is shown. Each foil blank 10 is essentially in two parts, consisting of a cut-away blank of the foil web 4 and a cut-away blank of the foil web 5. The foil blank 10 also has the overlap 9. As a result of the shrinking process, the two overlapping film areas of the overlap 9 also remain one above the other, so that the overlap is then stored as a stable carrying handle 20 of the shrinkage package 1 (see FIG FIG. 3 ) suitable is.

Die Überlappung 9 ist in der hier dargestellten Ausführungsform durch eine Schraffur optisch erkennbar auf der Folie 3 dargestellt.The overlap 9 is shown visually recognizable on the film 3 by hatching in the embodiment shown here.

Figur 2 zeigt nochmals eine Draufsicht des Folienzuschnitts 10 gemäß Figur 1, wobei seitlich der Überlappung 9 Perforationen 24, 25 in den Folienzuschnitt 10 eingebracht sind, mittels denen ein Benutzer einfacher in den durch die Überlappung 9 gebildeten Tragegriff 20 (siehe Figur 1) greifen kann. Die Perforationen 24, 25 weisen in der hier dargestellten Ausführungsform einen Abstand zur Überlappung 9 auf, der mindestens der Hälfte der Breite 31 entspricht. FIG. 2 shows again a plan view of the film blank 10 according to FIG. 1 , wherein the side of the overlap 9 perforations 24, 25 are introduced into the film blank 10, by means of which a user easier in the formed by the overlap 9 carrying handle 20 (see FIG. 1 ) can grab. The perforations 24, 25 have in the embodiment shown here a distance from the overlap 9, which corresponds to at least half of the width 31.

Es ist für einen Fachmann selbstverständlich, dass die Perforationen 24, 25 auch nach dem Schrumpfprozess eingebracht werden können und die Perforationen 24, 25 durch kurze Längsschnitte, durch eine im Wesentlichen lineare Anordnung punktueller Einstiche, wie z. B. durch Nadeln, oder durch Laserbehandlung gebildet werden können. Figur 3 zeigt eine Perspektivansicht eines Schrumpfgebindes 1 mit einem Tragegriff 20, der durch die Überlappung 9 der beiden Folienbahnzuschnitte 4, 5 des Folienzuschnitts 10 gebildet ist. Mindestens zwei Artikel 2 sind mit dem Folienzuschnitt 10 nach Figur 1 bzw. 2 derart eingeschlagen, dass sie das Schrumpfgebinde 1 bilden und die Überlappung 9 nach Figur 1 bzw. 2 der zwei Folienbahnzuschnitte 4, 5 den Tragegriff 20 für das Schrumpfgebinde 1 bildet.It is obvious to a person skilled in the art that the perforations 24, 25 can also be introduced after the shrinking process and the perforations 24, 25 by short longitudinal sections, by a substantially linear arrangement punctiform punctures, such. B. by needles, or by laser treatment can be formed. FIG. 3 shows a perspective view of a shrinkage package 1 with a handle 20, which is formed by the overlap 9 of the two film web blanks 4, 5 of the film blank 10. At least two articles 2 are with the film blank 10 after FIG. 1 or 2 so wrapped that they form the shrinkage container 1 and the overlap 9 after FIG. 1 or 2 of the two film web blanks 4, 5 forms the carrying handle 20 for the shrinkage package 1.

Figur 4 zeigt eine Draufsicht einer Folie 3, die mit drei Schnitten entlang den Schnittlinien 8, 18, 28 in vier Folienbahnen 4, 5, 6, 7 gleicher Breite geteilt wird. Die oberen beiden benachbarten Folienbahnen 4, 5 besitzen eine Überlappung 9 und die unteren beiden benachbarten Folienbahnen 6, 7 besitzen ebenfalls eine Überlappung 9. Das Paar 4, 5 bildet das Folieneinschlagmaterial für jeweils ein Schrumpfgebinde 1 und das Paar 6, 7 bildet das Folieneinschlagmaterial für ein anderes Schrumpfgebinde 1. Die Paare 4, 5 und 6, 7 können parallel mit dem jeweiligen Folieneinschlagmaterial um die jeweiligen Artikel 2 gewickelt und geschrumpft werden. Die beiden Folieneinschlagmaterialien sind die beiden Folienzuschnitte 10, 11. Die Folienbahn 4 weist einen unteren Rand 14, die Folienbahn 5 einen oberen Rand 15 auf, wobei die Ränder 14, 15 vor der Folienteilung zusammenfallen. Die Folienbahn 6 weist einen unteren Rand 16, die Folienbahn 7 einen oberen Rand 17 auf, wobei die Ränder 16, 17 vor der Folienteilung zusammenfallen. FIG. 4 shows a plan view of a film 3, which is divided with three sections along the cutting lines 8, 18, 28 in four film webs 4, 5, 6, 7 of equal width. The upper two adjacent film webs 4, 5 have an overlap 9 and the lower two adjacent film webs 6, 7 also have an overlap 9. The pair 4, 5 forms the film wrapping material for each shrinkage package 1 and the pair 6, 7 forms the film wrapping material for another shrinkage package 1. The pairs 4, 5 and 6, 7 can be wound and shrunk around the respective articles 2 in parallel with the respective film wrapping material. The two film wrapping materials are the two film blanks 10, 11. The film web 4 has a lower edge 14, the film web 5 an upper edge 15, wherein the edges 14, 15 coincide before the film pitch. The film web 6 has a lower edge 16, the film web 7 an upper edge 17, wherein the edges 16, 17 coincide before the film pitch.

Die Zuschnitte 10, 11, die Überlappungen 9, die Herstellung der Gebinde 1 sind ansonsten wie bei Figur 1-3 bereits beschrieben.The blanks 10, 11, the overlaps 9, the production of the container 1 are otherwise as in Figure 1-3 already described.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

11
Schrumpfgebindeshrink packaging
22
Artikelitems
33
Foliefoil
4, 5, 6, 74, 5, 6, 7
Folienbahnsheet
14, 15, 16, 1714, 15, 16, 17
Randedge
8, 18, 288, 18, 28
Schnittlinieintersection
99
Überlappungoverlap
10, 1110, 11
Folienzuschnittfilm blank
1212
FolienführungseinheitSheet guide unit
1313
Schneideeinheitcutting unit
2020
Tragegriffhandle
24, 2524, 25
Perforationperforation
3030
Längsrichtunglongitudinal direction
3131
Breitewidth
3232
Oberseitetop

Claims (15)

Verfahren zum Herstellen eines Schrumpfgebindes (1), bei dem von einer schrumpfbaren Folie (3) Folienzuschnitte (10, 11) quer zu einer Längsrichtung (30) der Folie (3) abgeteilt werden, die Folienzuschnitte (10, 11) jeweils um mindestens zwei Artikel (2) gewickelt werden, und die Folienzuschnitte (10, 11) auf die umwickelten Artikel (2) für jeweils ein Schrumpfgebinde (1) aufgeschrumpft werden, gekennzeichnet dadurch, dass die Folie (3) vor einem Aufschrumpfprozess in mindestens zwei Folienbahnen (4, 5, 6, 7) entlang der Längsrichtung (30) geteilt wird und dann mindestens zwei benachbarte Folienbahnen (4, 5, 6, 7) derart an ihren benachbarten Rändern (14, 15, 16, 17) in der Längsrichtung (30) zusammengeführt werden, dass sie an den benachbarten Rändern (14, 15, 16, 17) eine Überlappung (9) mit einer Breite (31) bilden.Method for producing a shrinkable package (1), in which film blanks (10, 11) are divided off from a shrinkable film (3, 3) transversely to a longitudinal direction (30) of the film (3), the film blanks (10, 11) each being separated by at least two Article (2) are wound, and the film blanks (10, 11) are shrunk onto the wrapped articles (2) for each shrinkage package (1), characterized in that the film (3) in at least two film webs (4 , 5, 6, 7) along the longitudinal direction (30) and then at least two adjacent film webs (4, 5, 6, 7) at their adjacent edges (14, 15, 16, 17) in the longitudinal direction (30) be merged to form at the adjacent edges (14, 15, 16, 17) an overlap (9) with a width (31). Verfahren nach Anspruch 1, wobei die Folie (3) bereits vor dem Abteilen in Folienzuschnitte (10, 11) in die mindestens zwei Folienbahnen (4, 5, 6, 7) entlang der Längsrichtung (30) geteilt wird und dann die mindestens zwei benachbarten Folienbahnen (4, 5, 6, 7) derart an ihren benachbarten Rändern (14, 15, 16, 17) in der Längsrichtung (30) zusammengeführt werden, dass sie an den benachbarten Rändern (14, 15, 16, 17) die Überlappung (9) mit der Breite (31) bilden.Method according to claim 1, wherein the film (3) is already divided into the at least two film webs (4, 5, 6, 7) along the longitudinal direction (30) before being divided into film blanks (10, 11) and then the at least two adjacent webs Film webs (4, 5, 6, 7) are brought together at their adjacent edges (14, 15, 16, 17) in the longitudinal direction (30), that at the adjacent edges (14, 15, 16, 17), the overlap (9) with the width (31) form. Verfahren nach einem der voranstehenden Ansprüche, wobei die Folie (3) mit einem Schnitt in zwei Folienbahnen (4, 5, 6, 7) gleicher Breite geteilt wird.Method according to one of the preceding claims, wherein the film (3) is divided with a cut into two film webs (4, 5, 6, 7) of equal width. Verfahren nach Anspruch 3, wobei mindestens zwei Artikel (2) mit dem Folienzuschnitt (10) derart eingeschlagen werden, dass sie das jeweilige Schrumpfgebinde (1) darstellen und die Überlappung (9) der zwei Folienbahnzuschnitte (4, 5) einen Tragegriff (20) für das Schrumpfgebinde (1) bildet.Method according to claim 3, wherein at least two articles (2) are wrapped with the film blank (10) in such a way that they represent the respective shrink package (1) and the overlap (9) of the two film web blanks (4, 5) comprises a carrying handle (20). for the shrinkage package (1) forms. Verfahren nach Anspruch 1 oder 2, wobei die Folie (3) mit drei Schnitten in vier Folienbahnen (4, 5, 6, 7) gleicher Breite geteilt wird und jeweils zwei benachbarte Folienbahnen (4, 5, 6, 7) jeweils eine Überlappung (9) besitzen und somit das Folieneinschlagmaterial für jeweils ein Schrumpfgebinde (1) darstellen.Method according to claim 1 or 2, wherein the foil (3) is divided into four foil webs (4, 5, 6, 7) of the same width with three cuts and in each case two adjacent ones Film webs (4, 5, 6, 7) each have an overlap (9) and thus represent the film wrapping material for each a shrinkage package (1). Verfahren nach Anspruch 5, wobei zwei Schrumpfgebinde (1) parallel durch Einschlagen von jeweils mindestens zwei Artikeln (2) mit jeweils einem der beiden Folieneinschlagmaterialien hergestellt werden.A method according to claim 5, wherein two shrinkage packages (1) are produced in parallel by wrapping in each case at least two articles (2) each with one of the two film wrapping materials. Verfahren nach einem der voranstehenden Ansprüche, wobei seitlich der Überlappung (9) Perforationen (24, 25) in die Folie (3) oder in die Folienzuschnitte (10, 11) eingebracht werden.Method according to one of the preceding claims, wherein at the side of the overlap (9) perforations (24, 25) in the film (3) or in the foil blanks (10, 11) are introduced. Schrumpfgebinde (1) umfassend mindestens zwei Artikel (2), die mit einer schrumpfbaren Folie (3) umwickelt sind, dadurch gekennzeichnet, dass die Folie (3) zwei Folienzuschnitte (10, 11) umfasst, die an ihren benachbarten Rändern (14, 15, 16, 17) eine Überlappung (9) mit einer Breite (31) ausgebildet haben.Shrinkage package (1) comprising at least two articles (2) which are wrapped with a shrinkable film (3), characterized in that the film (3) comprises two film blanks (10, 11) arranged at their adjacent edges (14, 15 , 16, 17) have formed an overlap (9) with a width (31). Schrumpfgebinde (1) nach Anspruch 8, wobei die Breite (31) ein Maß von 20 bis 60 mm aufweist.Shrinkable package (1) according to claim 8, wherein the width (31) has a dimension of 20 to 60 mm. Schrumpfgebinde (1) nach einem der Ansprüche 8 bis 9, wobei seitlich der Überlappung (9) mindestens eine Perforation (24, 25) in den jeweiligen Folienzuschnitt (10, 11) eingebracht ist.Shrinkable package (1) according to one of claims 8 to 9, wherein at least one perforation (24, 25) is introduced into the respective film blank (10, 11) at the side of the overlap (9). Schrumpfgebinde (1) nach Anspruch 10, wobei die Perforationen (24, 25) jeweils an einer Position auf dem jeweiligen Folienzuschnitt (10, 11) eingebracht sind, die sich beim späteren fertigen Schrumpfgebinde (1) auf der Oberseite (32) des Schrumpfgebindes (1) befindet.Shrinkage package (1) according to claim 10, wherein the perforations (24, 25) are each introduced at a position on the respective foil blank (10, 11) which is located on the upper side (32) of the shrinkable package (1) in the later finished shrink package (1). 1) is located. Schrumpfgebinde (1) nach Anspruch 10 oder 11, wobei die jeweilige Perforation (24, 25) des jeweiligen Folienzuschnitts (10, 11) einen Abstand zu der jeweiligen Überlappung (9) aufweist.Shrinkable package (1) according to claim 10 or 11, wherein the respective perforation (24, 25) of the respective foil blank (10, 11) is spaced from the respective overlap (9). Schrumpfgebinde (1) nach Anspruch 12, wobei der Abstand der jeweiligen Perforation (24, 25) des jeweiligen Folienzuschnitts einem Maß entspricht, das mindestens der Hälfte der Breite (31) entspricht.Shrinkable container (1) according to claim 12, wherein the distance of the respective perforation (24, 25) of the respective foil blank corresponds to a dimension corresponding to at least half of the width (31). Schrumpfgebinde (1) nach einem der Ansprüche 8 bis 13, wobei die Überlappungen (9) und/oder die Perforationen (24, 25) durch optisch erkennbare Merkmale auf der Folie (3) gekennzeichnet sind.Shrink Packaging (1) according to any one of claims 8 to 13, wherein the overlap (9) and / or the perforations (24, 25) are characterized by optically detectable characteristics on the film (3). Schrumpfgebinde (1) nach Anspruch 14, wobei die Überlappungen (9) und/ oder die Perforationen (24, 25) farblich auf der Folie (3) gekennzeichnet sind.Shrink Packaging (1) according to claim 14, wherein the overlap (9) and / or the perforations (24, 25) colored on the slide (3) are marked.
EP10153870.0A 2009-03-23 2010-02-17 Shrink-wrap package and method for its manufacture Not-in-force EP2233405B1 (en)

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CN101844629B (en) 2013-02-27
DE102009003653A1 (en) 2010-09-30
EP2233405B1 (en) 2015-09-02
US8267248B2 (en) 2012-09-18
CN101844629A (en) 2010-09-29

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