EP0230855B1 - Method of manufacturing a package for items, especially chocolate bars, as well as tubular package - Google Patents

Method of manufacturing a package for items, especially chocolate bars, as well as tubular package Download PDF

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Publication number
EP0230855B1
EP0230855B1 EP86810506A EP86810506A EP0230855B1 EP 0230855 B1 EP0230855 B1 EP 0230855B1 EP 86810506 A EP86810506 A EP 86810506A EP 86810506 A EP86810506 A EP 86810506A EP 0230855 B1 EP0230855 B1 EP 0230855B1
Authority
EP
European Patent Office
Prior art keywords
package
fins
folded
fastened
side edges
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
Application number
EP86810506A
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German (de)
French (fr)
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EP0230855A2 (en
EP0230855A3 (en
Inventor
Gert Deutschländer
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.)
Schweizerische Industrie Gesellschaft
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Schweizerische Industrie Gesellschaft
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Publication date
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Publication of EP0230855A2 publication Critical patent/EP0230855A2/en
Publication of EP0230855A3 publication Critical patent/EP0230855A3/en
Application granted granted Critical
Publication of EP0230855B1 publication Critical patent/EP0230855B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/60—Containers, packaging elements or packages, specially adapted for particular articles or materials for sweets or like confectionery products
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
    • B65D75/06—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks initially folded to form tubes
    • B65D75/08—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks initially folded to form tubes with the ends of the tube closed by folding

Definitions

  • tube packs for chocolate bars are usually formed by wrapping the bars, which are delivered at a spacing from one another, by means of a continuous wrapping film to form a longitudinal sealing seam. After the longitudinal seal seam has been laid flat on the underside of the package, the tube formed from the film is pressed, sealed and separated between two adjacent bars. The packs therefore have a fin seam on both ends, which is also referred to as a pinch fold.
  • This known packaging can be manufactured cheaply and with high cadence. It requires simple sealing jaws and low sealing temperatures, since the sealing seam is only one layer. In this known packaging, however, the wide fins are annoying. They give the packaging a "cheap" appearance and are therefore hardly used for packaging high-quality products. In addition, these large Finns take up a lot of space, which is disadvantageous in multipacks, sales racks and vending machines.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Basic Packing Technique (AREA)
  • Confectionery (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Description

Bei bekannten Verfahren gemäß Oberbegriff des Anspruchs 1 werden Schlauchpackungen für Schokoladeriegel üblicherweise durch Umhüllen der mit gegenseitigem Abstand angelieferten Riegel mittels einer kontinuierlichen Einschlagfolie unter Bildung einer Längssiegelnaht geformt. Nach dem Flachlegen der Längssiegelnaht auf die Packungsunterseite wird der aus der Folie gebildete Schlauch jeweils zwischen zwei benachbarten Riegeln flachgedrückt, versiegelt und getrennt. Damit haben die Packungen an beiden Stirnseiten eine Finnennaht, die auch als Quetschfaltung bezeichnet wird. Diese bekannte Verpackung kann billig und mit hoher Kadenz hergestellt werden. Sie erfordert einfache Siegelbacken und niedrige Siegeltemperaturen, da die Siegelnaht nur einschichtig ist. Bei dieser bekannten Verpackung sind jedoch die breiten Finnen störend. Sie geben der Verpackung ein "billiges" Aussehen und werden deshalb kaum zum Verpacken hochwertiger Produkte verwendet. Zudem beanspruchen diese großen Finnen viel Raum, was in Sammelpackungen, Verkaufsgestellen und Verkaufsautomaten nachteilig ist.In known methods according to the preamble of claim 1, tube packs for chocolate bars are usually formed by wrapping the bars, which are delivered at a spacing from one another, by means of a continuous wrapping film to form a longitudinal sealing seam. After the longitudinal seal seam has been laid flat on the underside of the package, the tube formed from the film is pressed, sealed and separated between two adjacent bars. The packs therefore have a fin seam on both ends, which is also referred to as a pinch fold. This known packaging can be manufactured cheaply and with high cadence. It requires simple sealing jaws and low sealing temperatures, since the sealing seam is only one layer. In this known packaging, however, the wide fins are annoying. They give the packaging a "cheap" appearance and are therefore hardly used for packaging high-quality products. In addition, these large Finns take up a lot of space, which is disadvantageous in multipacks, sales racks and vending machines.

Verpackungen, die besser präsentieren, werden deshalb mit sogenannten Zwickelfaltungen an der Stirnseite hergestellt. Ein Beispiel einer solchen Zwickelfaltung ist in GB-A 679 052 erläutert. An den Stirnseiten wird von zwei gegenüberliegenden Schmalseiten her vor dem Flachdrücken des Schlauches jeweils ein Zwickel gebildet. Nach dem Flachdrücken und Versiegeln überragt dann die Stirnseitennaht das verpackte Produkt in der Breite nicht. Sie läßt sich deshalb auf die Stirnseite der Packung herunterfalten und festkleben. Bei dieser Packung ist die Stirnseitensiegelnaht wegen der Zwickel teils einschichtig, teils doppelschichtig. Sie ist deshalb nur schwer dicht zu kriegen. Es müssen höhere Siegeltemperaturen verwendet werden, damit auch im doppelschichtigen Bereich die Versiegelung gewährleistet ist. Dadurch ist die Siegeltemperatur im einschichtigen Bereich zu hoch und es muß mit entsprechend längeren Abkühlzeiten gerechnet werden. Diese Packungen können deshalb nicht mit der hohen Kadenz der zuvor erwähnten Packungen hergestellt werden.Packaging that presents better is therefore produced with so-called gusset folds on the front. An example of such a gusset fold is explained in GB-A 679 052. A gusset is formed on the end faces of two opposite narrow sides before the hose is flattened. After flattening and sealing, the front seam does not protrude the width of the packaged product. It can therefore be folded down onto the front of the pack and glued on. In this pack, the front side seam is partly single-layer, partly double-layer due to the gusset. It is therefore difficult to get tight. Higher sealing temperatures must be used so that the seal is guaranteed even in the double-layer area. As a result, the sealing temperature in the single-layer area is too high and correspondingly longer cooling times must be expected. These packs cannot therefore be produced with the high cadence of the packs mentioned above.

Eine weitere Schlauchpackung mit Zwickelfaltung ist aus CH-A 254 978 bekannt. Auch hier ist die Siegelnaht an den Stirnseiten teils einschichtig, teils doppelschichtig, so daß dieselben Probleme mit Dichtigkeit und Herstellkadenz auftreten, wie bei der GB-A 679 052. Zudem wird bei dieser Packung der Lappen des Stirnseitenverschlusses auf die der Längssiegelnaht gegenüberliegende Großfläche der Tafel gefaltet. Beide Großflächen der Tafel sind daher für Werbezwecke kaum zu gebrauchen, so daß diese Packung üblicherweise mit einem zweiten Umschlag versehen werden muß, was aufwendig ist.Another hose pack with gusset fold is known from CH-A 254 978. Here, too, the sealing seam on the end faces is partly single-layer, partly double-layered, so that the same problems with tightness and manufacturing cadence occur as with GB-A 679 052. In addition, with this pack, the flap of the end-face closure is placed on the large surface of the panel opposite the longitudinal sealing seam folded. Both large areas of the board are therefore hardly usable for advertising purposes, so that this pack usually has to be provided with a second envelope, which is expensive.

Die Aufgabe der vorliegenden Erfindung besteht darin, ein Verfahren zur Herstellung einer Schlauchbeutelpackung und eine Packung für Stückgüter zu schaffen, welche eine dichte Versiegelung an den Stirnseitenverschlüssen gewährleistet und hohe Herstellkadenzen ermöglicht, wobei die Packung ästhetisch ansprechend sein soll. Diese Aufgabe wird mit den kennzeichnenden Merkmalen der Ansprüche 1 und 6 gelöst.The object of the present invention is to provide a method for producing a tubular bag pack and a pack for piece goods, which ensures a tight seal at the end closures and enables high manufacturing cadences, the pack should be aesthetically pleasing. This object is achieved with the characterizing features of claims 1 and 6.

Nachfolgend werden Ausführungsbeispiele der Erfindung anhand der Zeichnung erläutert. Die Figuren stellen die eine Stirnseite der Packung perspektivisch dar. Es zeigen:

  • Fig. 1 bis 6 aufeinanderfolgende Faltoperationen des Stirnseitenverschlusses einer Packung, und
  • Fig. 7 und 8 eine Variante der Ausführungsform nach Fig. 1 bis 6.
Exemplary embodiments of the invention are explained below with reference to the drawing. The figures represent one end of the pack in perspective.
  • Fig. 1 to 6 consecutive folding operations of the front closure of a pack, and
  • 7 and 8 a variant of the embodiment of FIGS. 1 to 6.

Zur Herstellung der dargestellten Packung werden zunächst die mit gegenseitigem Abstand voneinander angelieferten Stückgüter, insbesondere Schokoladeriegel, mit einer kontinuierlichen, heißsiegelbaren Folie 1 umhüllt. Die Längsränder der Folie werden miteinander unter Bildung einer Längssiegelnaht 2 versiegelt und die Längssiegelnaht 2 flach auf die Unterseite der Packung gefaltet. Der dadurch gebildete Schlauch wird jeweils zwischen benachbarten Riegeln gequetscht, unter Bildung einer Finne 3 versiegelt und die einzelnen Packungen werden voneinander getrennt. Diese Operationen entsprechen dem bekannten Verfahren gemäß Oberbegriff des Anspruches 1 und führen bei den bekannten Schlauchbeutelpackungen zu einem Stirnseitenverschluß gemäß Fig. 1.To produce the pack shown, the piece goods, in particular chocolate bars, which are delivered at a mutual distance from one another, are first enveloped with a continuous, heat-sealable film 1. The longitudinal edges of the film are sealed together to form a longitudinal sealing seam 2 and the longitudinal sealing seam 2 is folded flat onto the underside of the package. The tube formed in this way is squeezed between adjacent bars, sealed to form a fin 3, and the individual packs are separated from one another. These operations correspond to the known method according to the preamble of claim 1 and lead to an end closure according to FIG. 1 in the known tubular bag packs.

Im Unterschied zu diesem bekannten Stirnseitenverschluß wird beim erfindungsgemäßen Verfahren die Finne 3 bis zur straffen Anlage an der Stirnfläche des Riegels zusammengepreßt und gesiegelt (Fig. 2), wobei der Innenrand 4 der Finne 3 an der Stirnfläche des Riegels anliegt (Fig. 2). Die Finne 3 wird anschließend längs ihres Innenrandes 4 parallel zur Stirnseite 5 der Packung hochgefaltet (Fig. 3), derart, daß die Längssiegelnaht 2 außenseitig der Finne 3 ist. Die seitlich über die Seitenflächen 6 vorstehenden Seitenränder 7 werden in zwei Schritten um einen längs der Seitenkanten 8 verlaufenden Falz 9 um 180° nach innen gefaltet (Fig. 4 und 5). Schließlich wird der über die Oberseite 10 ragende äußere Rand 11 der Finne 3 längs der oberen Stirnkante 12 der Packung um 180° nach unten gefaltet und durch einen Heißklebertupfen 13 auf der Stirnseite 5 befestigt (Fig. 6). Statt einer Befestigung mit Heißklebertupfen kommt auch eine Heißsiegelung in Frage.In contrast to this known end closure in the method according to the invention, the fin 3 is pressed and sealed until it lies tight against the end face of the bolt (FIG. 2), the inner edge 4 of the fin 3 resting against the end face of the bolt (FIG. 2). The fin 3 is then folded up along its inner edge 4 parallel to the end face 5 of the pack (FIG. 3) such that the longitudinal sealing seam 2 is on the outside of the fin 3. The laterally beyond the side surfaces 6 protruding side edges 7 are in two steps by one along the side edges 8 extending fold 9 by 180 ° folded inwardly (Fig. 4 and 5). Finally, the outer edge 11 of the fin 3 projecting over the upper side 10 is folded down along the upper end edge 12 of the package by 180 ° and fastened on the end face 5 by a hot glue dab 13 (FIG. 6). Instead of fixing with hot glue dots, heat sealing is also an option.

Bei relativ dünnen, tafelförmigen Stückgütern, z.B. Schokoladetafeln, kann der in der letzten Faltoperation heruntergefaltete äußere Rand 11 der Finne 3 die Unterseite 14 der Packung überragen. In diesem bei der Variante nach Fig. 7 und 8 dargestellten Fall wird der über die Unterseite 14 vorstehende Teil des äußeren Randes 11 längs der unteren Stirnkante 15 um 90° gefaltet und durch Heißklebertupfen 13 an der Unterseite 14 der Packung befestigt.In the case of relatively thin, tabular piece goods, for example chocolate bars, the outer edge 11 of the fin 3 folded down in the last folding operation can protrude beyond the underside 14 of the package. In the case shown in the variant according to FIGS. 7 and 8, the part of the outer edge 11 protruding over the underside 14 is folded by 90 ° along the lower end edge 15 and fastened to the underside 14 of the package by hot glue dots 13.

Das dargestellte Verfahren und die damit hergestellte Packung haben gegenüber den bekannten Verfahren und Packungen erhebliche Vorteile:

  • - die Stirnseitensiegelnaht verläuft durchgehend einschichtig und kann deshalb sehr dicht und mit hoher Kadenz hergestellt werden;
  • - stirnseitig hat der Verschluß eine ununterbrochene Außenfläche, die für Werbezwecke wirksam ausgenützt werden kann und sehr gut präsentiert;
  • - der zuletzt heruntergefaltete äußere Rand 11 der Finne 3 verdeckt größtenteils eventuelle Faltungsungenauigkeiten. Das Packungsaussehen wird deshalb wenig durch Herstellungsungenauigkeiten beeinflußt.
  • - In Sammelpackungen, Verkaufsgestellen und Verkaufsautomaten wird gegenüber der herkömmlichen Quetschfaltung erheblich Raum eingespart. Zudem lassen sich die Packungen bedeutend besser stapeln und präsentieren deshalb besser.
  • - Die zusammengefalteten Finnen 3 wirken in Sammelpackungen und Verkaufsgestellen als Stoßdämpfer und Packungsverstärkung, so daß die verpackten Produkte geschützt werden.
The method shown and the package produced with it have considerable advantages over the known methods and packages:
  • - The front sealing seam runs continuously single-layered and can therefore be made very dense and with high cadence;
  • - On the front, the closure has an uninterrupted outer surface that can be used effectively for advertising purposes and is very well presented;
  • - The last folded down outer edge 11 of the fin 3 largely covers any folding inaccuracies. The packaging appearance is therefore little affected by manufacturing inaccuracies.
  • - Compartment packs, sales racks and vending machines save a lot of space compared to conventional pinch folding. In addition, the packs can be stacked much better and therefore present better.
  • - The folded fins 3 act in multipacks and sales racks as shock absorbers and package reinforcement, so that the packaged products are protected.

Claims (9)

1. Method of manufacturing a tubular bag package made of heatsealable material (1) and having a longitudinal seam (2) and crimp-sealed fins (3) at both ends (5), characterised in that in a first folding operation the fins (3) are turned up along their inner edge (4) parallel to the end (5) of the package, in a second folding operation the side edges (7) of the fins (3) are folded through 1800 along the side edges (8) of the package, and in a third folding operation the outer edge (11) of the fins (3), which protrudes beyond the upper leading edge (12) of the package, is folded with the folded-in side edges (7) through 180° and is fastened to the package.
2. Method according to claim 1, characterised in that, during the first folding operation, the fins (3) are folded so that the longitudinal seam (2) of the package is on the outside of the fins (3).
3. Method according to claim 2, characterised in that the side edges (7) of the fins (3) are folded so that they are on the same side of the fins (3) as the longitudinal seam (2).
4. Method according to one of claims 1 to 3, characterised in that the portion of the fins (3) which protrudes after the third folding operation beyond the underside (14) of the package is folded round the lower leading edge (15) of the package and is fastened to the underside (14) of the package.
5. Method according to one of claims 1 to 4, characterised in that the folded fins (3) are fastened by means of hot-setting adhesives.
6.Tubular bag package made of heat-sealable material (1) and having a longitudinal seam (2) and crimp-sealed fins (3), characterised in that the fins (3) are folded upwards along their inner edge (4) parallel to the end (5) of the package, that the side edges (7) of the fins (3) are folded through 180°, that the fins (3) are folded round a leading edge (12) of the package, and that the outer edge (11) of the fins (3) is fastened on the package.
7. Package according to claim 6, characterised in that the longitudinal seam (2) is on the inside of the folded-round outer edge (11) of the fins (3).
8. Package according to claim 6 or 7, characterised in that the outer edge (11) of the fins (3) is additionally folded round the opposite-lying leading edge (15) of the package and is fastened on the underside (14).
9. Package according to one of claims 6 to 8, characterised in that the fastening of the outer edge (11) of the fins (3) comprises heat-sealing spots (13).
EP86810506A 1985-12-24 1986-11-04 Method of manufacturing a package for items, especially chocolate bars, as well as tubular package Expired - Lifetime EP0230855B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5543/85A CH669940A5 (en) 1985-12-24 1985-12-24
CH5543/85 1985-12-24

Publications (3)

Publication Number Publication Date
EP0230855A2 EP0230855A2 (en) 1987-08-05
EP0230855A3 EP0230855A3 (en) 1988-11-09
EP0230855B1 true EP0230855B1 (en) 1990-03-28

Family

ID=4295356

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86810506A Expired - Lifetime EP0230855B1 (en) 1985-12-24 1986-11-04 Method of manufacturing a package for items, especially chocolate bars, as well as tubular package

Country Status (5)

Country Link
US (1) US4723701A (en)
EP (1) EP0230855B1 (en)
JP (1) JPS62220411A (en)
CH (1) CH669940A5 (en)
DE (1) DE3669859D1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH672467A5 (en) * 1987-05-08 1989-11-30 Sig Schweiz Industrieges
JPH07110651B2 (en) * 1990-11-30 1995-11-29 シーケーディ株式会社 Packaging equipment
DE4338628C2 (en) * 1993-11-12 1996-06-05 Melitta Haushaltsprodukte packaging
AU2003261427A1 (en) * 2002-08-08 2004-02-25 Mars, Incorporated Tamper evident food packaging
EP1508519A1 (en) 2003-08-20 2005-02-23 Mars Incorporated Method and device for packaging products and array of packaged products
AU2005238969A1 (en) * 2004-04-21 2005-11-10 Jeld-Wen, Inc Fiber-reinforced composites and building structures comprising fiber-reinforced composites
EP1967465A1 (en) * 2007-03-05 2008-09-10 Mars Incorporated Packaged products and array or bandoleer of packaged products

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1556056A (en) * 1920-12-21 1925-10-06 Weeks Engineering Corp Art of wrapping packages
US1640052A (en) * 1925-12-21 1927-08-23 Jr Andrew Olsen Candy package
FR851272A (en) * 1939-03-07 1940-01-05 Langanay & Fils G Transparent packaging especially for brine herring fillets
CH254978A (en) * 1947-05-17 1948-05-31 Suchard Holding Societe Anonym Packaging, especially for chocolate.
US2527692A (en) * 1947-05-20 1950-10-31 Quaker Oats Co Package construction
GB679052A (en) * 1950-04-26 1952-09-10 Alan Thurburn Scott Improvements in wrapping machines
US3112860A (en) * 1960-10-24 1963-12-03 Ahlen & Akerlund Forpackning A End closures for boxes and other articles
US3210200A (en) * 1963-06-05 1965-10-05 Milprint Inc Confectionary package
GB2030102B (en) * 1978-09-19 1982-11-10 Ibaragi Seiki Co Ltd Apparatus for vacuum packing articles
DE3214240A1 (en) * 1982-04-17 1983-10-20 Focke & Co, 2810 Verden BAG PACKING FOR TOBACCO AND METHOD AND DEVICE FOR PRODUCING THE SAME
CH657102B (en) * 1984-05-07 1986-08-15

Also Published As

Publication number Publication date
JPS62220411A (en) 1987-09-28
US4723701A (en) 1988-02-09
EP0230855A2 (en) 1987-08-05
EP0230855A3 (en) 1988-11-09
CH669940A5 (en) 1989-04-28
DE3669859D1 (en) 1990-05-03

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