EP0300211A1 - Package made of sheet material, such as paper, cardboard or the like, in particular a parallelepipedic package for liquids made of a cardboard-plastic composite - Google Patents

Package made of sheet material, such as paper, cardboard or the like, in particular a parallelepipedic package for liquids made of a cardboard-plastic composite Download PDF

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Publication number
EP0300211A1
EP0300211A1 EP88109883A EP88109883A EP0300211A1 EP 0300211 A1 EP0300211 A1 EP 0300211A1 EP 88109883 A EP88109883 A EP 88109883A EP 88109883 A EP88109883 A EP 88109883A EP 0300211 A1 EP0300211 A1 EP 0300211A1
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EP
European Patent Office
Prior art keywords
lines
pack
perforation
base
cardboard
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Application number
EP88109883A
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German (de)
French (fr)
Inventor
Klaus O.K. Dr. Kamin
Karl-Heinz Ludwig
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.)
SIG Combibloc GmbH and Co KG
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SIG Combibloc GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from DE8710092U external-priority patent/DE8710092U1/en
Priority claimed from DE8801139U external-priority patent/DE8801139U1/en
Application filed by SIG Combibloc GmbH and Co KG filed Critical SIG Combibloc GmbH and Co KG
Publication of EP0300211A1 publication Critical patent/EP0300211A1/en
Withdrawn legal-status Critical Current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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
    • B65D5/06—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end-closing or contents-supporting elements formed by folding inwardly a wall extending from, and continuously around, an end of the tubular body
    • B65D5/064—Rectangular containers having a body with gusset-flaps folded outwardly or adhered to the side or the top of the container
    • B65D5/065—Rectangular containers having a body with gusset-flaps folded outwardly or adhered to the side or the top of the container with supplemental means facilitating the opening, e.g. tear lines, tear tabs
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/70—Break-in flaps, or members adapted to be torn-off, to provide pouring openings
    • B65D5/701—Tearable flaps defined by score-lines or incisions provided in the closure flaps of a tubular container made of a single blank
    • 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
    • B65D2231/00—Means for facilitating the complete expelling of the contents
    • B65D2231/02—Precut holes or weakened zones
    • 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
    • B65D2231/00—Means for facilitating the complete expelling of the contents
    • B65D2231/02—Precut holes or weakened zones
    • B65D2231/022—Precut holes or weakened zones for permitting the insertion of a tubular contents-removing device, e.g. a drinking straw

Definitions

  • the invention relates to a packaging made of sheet material, such as paper, cardboard or the like, in particular cuboid liquid pack made of cardboard-plastic composite material, with a web seam closure, which can be placed along the top and adjoining it on both sides, by the side wall of the pack Folded triangles which can be delimited by groove lines and which have groove lines extending from the upper side wall edge and extending obliquely to the web seam closure and at least one of which is provided with a tearable pouring opening formed by lines of weakness or the like.
  • sheet material such as paper, cardboard or the like
  • cuboid liquid pack made of cardboard-plastic composite material
  • a pack of this type can be found, for example, in German Patent 1,298,929.
  • a weakening line which runs obliquely to the base line of the closure seam is provided, which consists of a perforation in V-shape or W-shape in the flat state of the packaging material.
  • composite material as is customary for aseptic packs, in which not only aluminum foil but also sometimes tough plastic is used, the tearing of the perforation is nevertheless so difficult that very high forces have to be applied to part of the top seam to tear along the perforation.
  • this is not possible with aseptic packs, since the risk of leakage will then become unacceptable.
  • the invention has for its object to provide a package made of sheet material, such as To produce paper, cardboard or the like with a web seam closure, in particular cuboid liquid pack made of paper-plastic composite material, which can be opened particularly easily by hand.
  • This object is achieved in that the weakening lines are arranged in a U-shaped manner in the wall part forming the folding triangle and of leg-like perforation lines running with a base-like perforation line running parallel to the base line of the web seam closure and perpendicular to it, in the region of the oblique groove lines and striking the base-like perforation line Perforation lines are formed.
  • the perforation in the molded and sealed package is congruent, so that comparatively simple opening steps result from it.
  • the folding triangle only needs to be folded up and the front tip of the folding triangle concerned has to be folded one or more times along the perforation line and then torn off.
  • the folding triangle tip can be torn off with comparatively low forces, since the perforation is pre-folded in both directions by almost 180 ', i.e. can be broken. Since the package does not need to be reshaped to open it, the corner stiffness and thus the grip of the package remains intact.
  • the pouring opening or pronounced pouring spout produced in the manner described has a comparatively large angle of repose, which enables safe, non-drip and targeted pouring. A surge is avoided in any case if a ventilation hole is opened on the side of the pack opposite the opening. After partial emptying, the pouring spout can be folded back onto the side wall of the pack, so that reclosability is achieved in this simple manner.
  • the perforation Due to the special arrangement and design of the perforation, this can be achieved in various ways, for example by a full cut of the uncoated carrier material, such as e.g. Cardboard or in such a way that a half-cut is made in the coated composite from the outside inwards on appropriately designed punches.
  • the congruent arrangement of the perforation in the folding triangle and in the direction of the packaging material in the form, fill and seal machine ensures a simple, sharply defined heat treatment to improve the adhesion of the films in the perforation area.
  • the base-like perforation line being arranged approximately halfway up the vertical of a triangle formed by the side wall edge and the oblique groove lines.
  • the perforation lines are chamfered or rounded in the corner regions abutting one another.
  • This modified cut has the advantage that the starting point for tearing off and tearing off Packing corner always lies on the groove lines even if the perforation lines are offset from the groove lines.
  • the breaking of the corners becomes more effective when bending and bending, since the perforation is stretched more by the curved cut in the corner areas in relation to the molded package.
  • the size of the radius depends on the package format or the basic dimensions of the opening, i.e. the larger the basic dimension, the larger the radius can be, and of the fluctuations to be compensated, i.e. the greater the fluctuations, the larger the radius must be, with the limits that an excessively large radius makes opening more difficult due to the occurrence of excessive tension, and an excessively small radius cannot compensate for the fluctuations.
  • the radius is thus 7.5 to 3.75 mm, preferably 5 mm.
  • a flexible, relatively stiff web-shaped material for example in the form of a blank 3, which is only partially shown in FIG. 1, is used to produce a pack with side walls 1, an upper end wall 2 and an invisible bottom wall shown in FIG.
  • the blank is brought into a tubular shape for the production of the pack and closed by closing a longitudinal seam, a bottom seam and a closing seam 4 attached on the head side.
  • the web seam closure 4 is limited by a base line 5 with respect to the material of the side walls 1.
  • the pack has folding triangles 6 on the upper underside which can be folded over on both sides and placed on the side wall of the pack. Each of the folding triangles is folded over a side wall edge 7 and fastened to the adjacent side wall by means of an easily detachable adhesive connection.
  • the closing seam 4 extends over the folding triangle 6, the upper end wall 2 and the folding triangle (not shown) folded down onto the invisible side wall of the packaging.
  • the pack is also provided with groove lines 8, 9 and 11, 12 and 13, the groove lines 8 and 9 delimiting the transitions between two adjacent side walls 1 of the pack and the groove lines 11, 12 and 13 lying in the region of the folding triangle 6.
  • the groove lines 11, 12 are arranged obliquely to one another, in such a way that they form a triangle together with the side wall edge 7 and the groove line 13 lies on a vertical of this triangle.
  • lines of weakness which are arranged in a U-shaped manner in the wall part forming the folding triangle and consist of a base-like perforation line 14, which runs parallel to the base line 5 of the web seam closure 4, and two leg-like perforation lines 15, 16, the latter and meet the base-like perforation line 14 on the oblique groove lines 11, 12.
  • the perforation lines 14, 15, 16 lie congruently on the inside and outside of the folding triangle, so that the folding triangle is divided by the perforation lines parallel to the side wall edge 7 into two sections.
  • the folding triangle is folded up, the front folding triangle tip is pre-folded or broken by 180 in both directions around the perforation lines 14, 15, 16 and then the folding triangle tip is torn off. Then only a ventilation hole 17 located on the opposite side in the end wall 2 needs to be opened in order to enable the contents of the package to be poured out without gushing.
  • the package does not need to be reshaped when torn, i.e.
  • the grommet produced in the manner described and shown in FIG. 3 can be folded back down onto the side wall, so that the pack can be closed conditionally.
  • the pack can still be easily opened because a bevel or rounding 10 in the corner area between the perforation lines 14, 15, 16 always on the groove lines 11 and 12 comes to lie. As a result, there is always a starting point lying on the groove lines for tearing and tearing off the packaging corner.
  • the perforation is stretched more strongly in the selected arcuate cut, so that the breaking of the corners becomes more effective when bending up and down.
  • the radius of the rounding should roughly correspond to the maximum expected range of fluctuation.

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

Abstract

The package has a web seam closure and folding triangles which can be placed on the side wall on both sides, are bounded by groove lines, and at least one of which is provided with a tear-off pouring opening formed by weakening lines or the like. In order to be able to open such a package easily, the weakening lines are arranged in a U-shape in the wall part forming the folding triangle and formed by a base-type perforation line (14), extending parallel to the base line (5) of the web seam closure (4), and limb-type perforation lines (15, 16) extending perpendicular to said perforation line (14) and meeting the base-type perforation line (14) in the region of the obliquely extending groove lines (11, 12). <IMAGE>

Description

Die Erfindung bezieht sich auf eine Verpackung aus flächigem Material, wie Papier, Karton oder dergleichen, insbesondere quaderförmige Flüssigkeitspackung aus Karton-Kunststoff-Verbundmaterial, mit einem Stegnahtverschluß, der sich entlang der Oberseite und beidseitig daran anschließende, an die Seitenwandung der Packung anlegbare, durch Nutlinien begrenzbare Faltdreiecke erstreckt, die von der oberen Seitenwandkante ausgehende, schräg auf den Stegnahtverschluß zu verlaufende Nutlinien aufweisen und von denen zumindest eines mit einer von Schwächungslinien oder dergleichen gebildeten aufreißbaren Ausgießöffnung versehen ist.The invention relates to a packaging made of sheet material, such as paper, cardboard or the like, in particular cuboid liquid pack made of cardboard-plastic composite material, with a web seam closure, which can be placed along the top and adjoining it on both sides, by the side wall of the pack Folded triangles which can be delimited by groove lines and which have groove lines extending from the upper side wall edge and extending obliquely to the web seam closure and at least one of which is provided with a tearable pouring opening formed by lines of weakness or the like.

Eine Packung dieser Art geht beispielsweise aus der deutschen Patentschrift 1 298 929 hervor. Um das Öffnen solcher Packungen zu erleichtern, ist eine schräg zur Grundlinie der Verschlußnaht verlaufende Schwächungslinie vorgesehen, die aus einer Perforierung in V-Form oder W-Form im ebenen Zustand des Verpackungsmaterials besteht. Bei Verbundmaterial, wie es für aseptische Packungen üblich ist, bei denen nicht nur Alu-Folie, sondern zum Teil auch zäher Kunststoff eingesetzt werden, ist das Aufreissen der Perforation dennoch so schwer, daß man sehr hohe Kräfte aufwenden muß, um einen Teil der Kopfnaht entlang der Perforation aufzureissen. Man könnte zwar grundsätzlich die Perforation vertiefen und damit das Aufreissen erleichtern. Dies ist jedoch bei aseptischen Packungen nicht möglich, da dann das Risiko der Undichtigkeit ein nicht mehr vertretbares Ausmaß annimmt.A pack of this type can be found, for example, in German Patent 1,298,929. In order to facilitate the opening of such packs, a weakening line which runs obliquely to the base line of the closure seam is provided, which consists of a perforation in V-shape or W-shape in the flat state of the packaging material. In the case of composite material, as is customary for aseptic packs, in which not only aluminum foil but also sometimes tough plastic is used, the tearing of the perforation is nevertheless so difficult that very high forces have to be applied to part of the top seam to tear along the perforation. One could fundamentally deepen the perforation and thus make it easier to tear open. However, this is not possible with aseptic packs, since the risk of leakage will then become unacceptable.

Der Erfindung liegt die Aufgabe zugrunde, eine Packung aus flächigem Material, wie z.B. Papier, Karton oder dergleichen mit einem Stegnahtverschluß, insbesondere quaderförmige Flüssigkeitspackung aus Papier-Kunststoff-Verbundmaterial herzustellen, die sich besonders leicht von Hand öffnen läßt. Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Schwächungslinien in dem das Faltdreieck bildenden Wandungsteil U-förmig angeordnet sind und von mit einer parallel zur Grundlinie des Stegnahtverschlusses verlaufenden basisartigen Perforationslinie und senkrecht dazu verlaufenden, im Bereich der schräg verlaufenden Nutlinien auf die basisartige Perforationslinie auftreffenden schenkelartigen Perforationslinien gebildet sind. Bei einer solchen Packung liegt die Perforation bei der aufgeformten und versiegelten Packung deckungsgleich, so daß sich daraus vergleichsweise einfache Öffnungsschritte ergeben. Zum Öffnen der Packung braucht das Faltdreieck lediglich hochgeklappt und der vordere Zipfel des betreffenden Faltdreiecks entlang der Perforationslinie eine- oder mehrmals umgeknickt werden und danach abgerissen werden. Das Abreissen des Faltdreieckzipfels kann mit vergleichsweise geringen Kräften durchgeführt werden, da die Perforation in beiden Richtungen um nahezu 180' vorgefalzt, d.h. vorgebrochen werden kann. Da die Packung zum Öffnen nicht umgeformt zu werden braucht, bleibt die Eckensteifigkeit und somit auch die Griffestigkeit der Packung voll erhalten. Die auf die vorbeschriebene Weise erzeugte Ausgießöffnung bzw. ausgeprägte Ausgießtülle weist einen vergleichsweise großen Schüttwinkel auf, der ein sicheres, tropffreies und gezieltes Ausgießen ermöglicht. Ein Schwallen wird in jedem Fall vermieden, wenn an der der Öffnung gegenüberliegenden Seite der Packung ein Belüftungsloch aufgestoßen wird. Nach teilweisem Entleeren kann Ausgießtülle wieder an die Seitenwand der Packung herangeklappt werden, so daß auf diese einfache Weise bedingt eine Wiederverschließbarkeit erzielt wird.The invention has for its object to provide a package made of sheet material, such as To produce paper, cardboard or the like with a web seam closure, in particular cuboid liquid pack made of paper-plastic composite material, which can be opened particularly easily by hand. This object is achieved in that the weakening lines are arranged in a U-shaped manner in the wall part forming the folding triangle and of leg-like perforation lines running with a base-like perforation line running parallel to the base line of the web seam closure and perpendicular to it, in the region of the oblique groove lines and striking the base-like perforation line Perforation lines are formed. In such a package, the perforation in the molded and sealed package is congruent, so that comparatively simple opening steps result from it. To open the package, the folding triangle only needs to be folded up and the front tip of the folding triangle concerned has to be folded one or more times along the perforation line and then torn off. The folding triangle tip can be torn off with comparatively low forces, since the perforation is pre-folded in both directions by almost 180 ', i.e. can be broken. Since the package does not need to be reshaped to open it, the corner stiffness and thus the grip of the package remains intact. The pouring opening or pronounced pouring spout produced in the manner described has a comparatively large angle of repose, which enables safe, non-drip and targeted pouring. A surge is avoided in any case if a ventilation hole is opened on the side of the pack opposite the opening. After partial emptying, the pouring spout can be folded back onto the side wall of the pack, so that reclosability is achieved in this simple manner.

Durch die besondere Anordnung und Ausgestaltung der Perforation läßt sich diese auf verschiedene Weise erreichen, beispielsweise durch einen Vollschnitt des unbeschichteten Trägermaterials, wie z.B. Karton oder aber auch in der Weise, daß in den beschichteten Verbund von außen nach innen auf entsprechend ausgebildeten Stanzen ein Halbschnitt eingebracht wird. Durch die deckungsgleiche Anordnung der Perforation im Faltdreieck und in Laufrichtung des Verpackungsmaterials in der Form-, Füll- und Verschließmaschine wird eine einfache, scharf begrenzte Wärmebehandlung zur Haftverbesserung der Folien im Perforationsbereich sichergestellt.Due to the special arrangement and design of the perforation, this can be achieved in various ways, for example by a full cut of the uncoated carrier material, such as e.g. Cardboard or in such a way that a half-cut is made in the coated composite from the outside inwards on appropriately designed punches. The congruent arrangement of the perforation in the folding triangle and in the direction of the packaging material in the form, fill and seal machine ensures a simple, sharply defined heat treatment to improve the adhesion of the films in the perforation area.

Eine gute Ausgießöffnung ergibt sich dann, die basisartige Perforationslinie etwa auf halber Höhe der Vertikalen eines von der Seitenwandkante und den schrägen Nutlinien gebildeten Dreiecks angeordnet ist.A good pouring opening then results, the base-like perforation line being arranged approximately halfway up the vertical of a triangle formed by the side wall edge and the oblique groove lines.

In der Praxis kann es aufgrund fertigungsbedingter Register- und Seitenkantenschwankungen zu einem Versatz der Perforationslinien zu den Nutlinien und damit zu Öffnungsschwierigkeiten kommen, da die Perforationslinien nicht mehr zur Deckung gebracht werden können.In practice, production-related register and side edge fluctuations can lead to an offset of the perforation lines to the groove lines and thus to opening difficulties since the perforation lines can no longer be made to coincide.

Um nun auch nicht deckungsgleichen Perforationslinien ein leichtes Öffnen der Packung zu gewährleisten, sind gemäß einem weiteren vorteilhaften Merkmal der Erfindung die Perforationslinien in den aufeinanderstoßenden Eckbereichen abgeschrägt bzw. abgerundet ausgebildet. Durch diese modifizierte Schnittführung wird der Vorteil erreicht, daß der Ausgangspunkt zum An- und Abreißen der Packungsecke auch bei einem Versatz der Perforationslinien zu den Nutlinien immer auf den Nutlinien liegt. Ferner wird das Vorbrechen der Ecken beim Auf- und Abbiegen effektiver, da durch die bogenförmige Schnittführung in den Eckbereichen - bezogen auf die aufgeformte Packung - die Perforation stärker gereckt wird.In order to ensure easy opening of the package also not congruent perforation lines, according to a further advantageous feature of the invention, the perforation lines are chamfered or rounded in the corner regions abutting one another. This modified cut has the advantage that the starting point for tearing off and tearing off Packing corner always lies on the groove lines even if the perforation lines are offset from the groove lines. In addition, the breaking of the corners becomes more effective when bending and bending, since the perforation is stretched more by the curved cut in the corner areas in relation to the molded package.

Die Größe des Radius ist dabei einmal vom Packungsformat bzw. von den Grundabmessungen der Öffnung abhängig, d.h. je größer die Grundabmessung, je größer kann auch der Radius sein, und von den auszugleichenden Schwankungen, d.h. je größer die Schwankungen desto größer muß auch der Radius sein, mit den Grenzen, daß ein zu großer Radius das Öffnen infolge des Auftretens einer zu starken Verspannung erschwert und ein zu kleiner Radius die Schwankungen nicht ausgleichen kann.The size of the radius depends on the package format or the basic dimensions of the opening, i.e. the larger the basic dimension, the larger the radius can be, and of the fluctuations to be compensated, i.e. the greater the fluctuations, the larger the radius must be, with the limits that an excessively large radius makes opening more difficult due to the occurrence of excessive tension, and an excessively small radius cannot compensate for the fluctuations.

Um ein leichtes Knicken und Anreißen der Packungsdecke zu gewährleisten, wobei I die Länge der Basislinie bedeutet, ist es zweckmäßig, den Radius wie folgt auszubilden:

Figure imgb0001
Bei einer Basislinie von 30 mm beträgt somit der Radius 7,5 bis 3,75 mm, vorzugsweise 5 mm.In order to ensure that the packing cover is slightly bent and torn, where I means the length of the baseline, it is advisable to design the radius as follows:
Figure imgb0001
 With a base line of 30 mm, the radius is thus 7.5 to 3.75 mm, preferably 5 mm.

Dadurch lassen sich alle in der Praxis normalerweise auftretenden Schwankungsbreiten ausgleichen.This means that all fluctuation ranges that normally occur in practice can be compensated for.

Bevorzugte Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden im folgenden näher erläutert. Es zeigen:

  • Figur 1 einen Ausschnitt eines zur Herstellung einer Packung geeigneten Zuschnitts im Bereich des Stegnahtverschlusses und eines Faltdreiecks,
  • Figur 2 einen ersten Öffnungsschritt zum Öffnen der Packung und
  • Figur 3 die geöffnete Packung, jeweils in schematischer Darstellung.
  • Figur 4 einen Ausschnitt eines Zuschnitts im Bereich des Stegnahtverschlusses und eines Faltdreiecks mit abgewandeltem Verlauf der Schwächungslinien,
  • Figur 5 und 6 eine der Figur 4 entsprechende Darstellung, jedoch mit versetzten Perforationslinien.
Preferred embodiments of the invention are shown in the drawing and are explained in more detail below. Show it:
  • FIG. 1 shows a detail of a blank suitable for producing a pack in the area of the web seam closure and a folding triangle,
  • Figure 2 shows a first opening step to open the package and
  • Figure 3 shows the opened package, each in a schematic representation.
  • FIG. 4 shows a detail of a blank in the area of the web seam closure and a folding triangle with a modified course of the weakening lines,
  • 5 and 6 a representation corresponding to FIG. 4, but with offset perforation lines.

Zur Herstellung einer in Figur 2 dargestellten Packung mit Seitenwänden 1, einer oberen Stirnwand 2 und einer nicht sichtbaren Bodenwand wird ein flexibles, verhältnismäßig steifes bahnförmiges Material, beispielsweise in Gestalt eines Zuschnittes 3, benutzt, der in Figur 1 nur teilweise dargestellt ist. Der Zuschnitt wird zur Herstellung der Packung in eine Rohrform gebracht und durch Verschließen einer Längsnaht, einer Bodennaht und einer kopfseitig angebrachten Verschlußnaht 4 verschlossen. Der Stegnahtverschluß 4 ist gegenüber dem Material der Seitenwände 1 durch eine Grundlinie 5 begrenzt. Die 'Packung besitzt an der oberen Unterseite beidseitig umlegbare und an die Seitenwand der Packung anlegbare Faltdreiecke 6. Jedes der Faltdreiecke wird um eine Seitenwandkante 7 umgelegt und mittels einer leicht lösbaren Haftverbindung an der angrenzenden Seitenwand befestigt. Die Verschlußaht 4 erstreckt sich über das Faltdreieck 6, die obere Stirnwand 2 und das nicht dargestellte, auf die nicht sichtbare Seitenwand der Verpackung niedergefaltete Faltdreieck. Die Packung ist ferner mit Nutlinien 8, 9 sowie 11, 12 und 13 versehen, wobei die Nutlinien 8 und 9 die Übergänge zwischen zwei benachbarten Seitenwänden 1 der Packung begrenzen und die Nutlinien 11, 12 und 13 im Bereich des Faltdreiecks 6 liegen. Dabei sind die Nutlinien 11, 12 schräg zueinander angeordnet, und zwar in der Art, daß sie zusammen mit der Seitenwandkante 7 eine Dreieck bilden und die Nutlinie 13 auf einer Vertikalen dieses Dreiecks liegt.A flexible, relatively stiff web-shaped material, for example in the form of a blank 3, which is only partially shown in FIG. 1, is used to produce a pack with side walls 1, an upper end wall 2 and an invisible bottom wall shown in FIG. The blank is brought into a tubular shape for the production of the pack and closed by closing a longitudinal seam, a bottom seam and a closing seam 4 attached on the head side. The web seam closure 4 is limited by a base line 5 with respect to the material of the side walls 1. The pack has folding triangles 6 on the upper underside which can be folded over on both sides and placed on the side wall of the pack. Each of the folding triangles is folded over a side wall edge 7 and fastened to the adjacent side wall by means of an easily detachable adhesive connection. The closing seam 4 extends over the folding triangle 6, the upper end wall 2 and the folding triangle (not shown) folded down onto the invisible side wall of the packaging. The pack is also provided with groove lines 8, 9 and 11, 12 and 13, the groove lines 8 and 9 delimiting the transitions between two adjacent side walls 1 of the pack and the groove lines 11, 12 and 13 lying in the region of the folding triangle 6. The groove lines 11, 12 are arranged obliquely to one another, in such a way that they form a triangle together with the side wall edge 7 and the groove line 13 lies on a vertical of this triangle.

Zum Erleichtern des Öffnens der Packung ist diese mit Schwächungslinien versehen, die in dem das Faltdreieck bildenden Wandungsteil U-förmig zueinander angeordnet sind und aus einer zur Grundlinie 5 des Stegnahtverschlusses 4 parallel verlaufenden basisartigen Perforationslinie 14 und zwei schenkelartigen Perforationslinien 15, 16 besteht, wobei letztere und die basisartige Perforationslinie 14 auf den schräg verlaufenden Nutlinien 11, 12 treffen.To facilitate the opening of the package, it is provided with lines of weakness, which are arranged in a U-shaped manner in the wall part forming the folding triangle and consist of a base-like perforation line 14, which runs parallel to the base line 5 of the web seam closure 4, and two leg-like perforation lines 15, 16, the latter and meet the base-like perforation line 14 on the oblique groove lines 11, 12.

Wenn aus einem derartig perforierten Zuschnitt die Packung hergestellt wird, liegen die die Perforationslinien 14, 15, 16 deckungsgleich auf der Innen- und Außenseite des Faltdreiecks, so daß das Faltdreieck durch die Perforationslinien parallel zur Seitenwandkante 7 in zwei Abschnitte aufgeteilt wird. Zum Öffnen der Packung wird das Faltdreieck hochgeklappt, der vordere Faltdreieckzipfel um die Perforationslinien 14, 15, 16 in beiden Richtungen um 180 vorgefalzt bzw. vorgebrochen und danach der Faltdreieckzipfel abgerissen. Danach braucht dann lediglich noch ein auf gegenüberliegenden Seite in der Stirnwand 2 befindliches Belüftungsloch 17 aufgestossen zu werden, um ein schwallfreies Ausgießen des Inhalts der Packung zu ermöglichen. Beim Aufreissen braucht die Packung nicht umgeformt, d.h. an den Ecken eingedrückt zu werden, so daß die Eckensteifigkeit und somit auch die Griffestigkeit der Packung erhalten bleibt. Nach nur teilweisem Entleeren der Packung kann die auf die vorbeschriebene Art und Weise erzeugte und in Figur 3 dargestellte Tülle wieder nach unten an die Seitenwand geklappt werden, so daß ein bedingtes Verschließen der Packung möglich ist.If the package is made from such a perforated blank, the perforation lines 14, 15, 16 lie congruently on the inside and outside of the folding triangle, so that the folding triangle is divided by the perforation lines parallel to the side wall edge 7 into two sections. To open the package, the folding triangle is folded up, the front folding triangle tip is pre-folded or broken by 180 in both directions around the perforation lines 14, 15, 16 and then the folding triangle tip is torn off. Then only a ventilation hole 17 located on the opposite side in the end wall 2 needs to be opened in order to enable the contents of the package to be poured out without gushing. The package does not need to be reshaped when torn, i.e. to be pressed in at the corners so that the corner stiffness and thus also the grip of the package is retained. After only partially emptying the pack, the grommet produced in the manner described and shown in FIG. 3 can be folded back down onto the side wall, so that the pack can be closed conditionally.

Im Fall, daß aufgrund fertigungstechnischer Unzulänglichkeiten die Perforationslinien zu den Nutlinien versetzt sind, so wie das beispielsweise in den Figuren 5 und 6 dargestellt ist, läßt sich dennoch die Packung leicht öffnen, da eine Abschrägung bzw. Abrundung 10 im Eckbereich zwischen den Perforationslinien 14, 15, 16 immer auf den Nutlinien 11 und 12 zu liegen kommt. Hierdurch ist stets ein auf den Nutlinien liegender Ausgangspunkt zum An- und Abreißen der Packungsecke gegeben. Außerdem wird bei der gewählten bogenförmigen Schnittführung die Perforation stärker gereckt, so daß das Vorbrechen der Ecken beim Auf- und Abbiegen effektiver wird.In the event that the perforation lines to the Nutli due to manufacturing deficiencies 5, 6, the pack can still be easily opened because a bevel or rounding 10 in the corner area between the perforation lines 14, 15, 16 always on the groove lines 11 and 12 comes to lie. As a result, there is always a starting point lying on the groove lines for tearing and tearing off the packaging corner. In addition, the perforation is stretched more strongly in the selected arcuate cut, so that the breaking of the corners becomes more effective when bending up and down.

Je größer die Packung bzw. die Grundabmessungen der Perforationslinien, um so größer wird die Abrundung 10 gewählt.The larger the package or the basic dimensions of the perforation lines, the larger the rounding 10 is chosen.

In etwa sollte der Radius der Abrundung der maximal zu erwartenden Schwankungsbreite entsprechen.The radius of the rounding should roughly correspond to the maximum expected range of fluctuation.

Es hat sich als zweckmäßig erwiesen, wenn der Radius der Berechnung

Figure imgb0002
entspricht, wobei I die Länge der Basislinie der Öffnung und R den Radius bzeichnet.It has proven useful if the radius of the calculation
Figure imgb0002
 corresponds, where I is the length of the base line of the opening and R is the radius.

Claims (9)

1. Packung aus flächigem Material, wie Papier, Karton oder dergleichen, insbesondere quaderförmige Flüssigkeitspackung aus Karton-Kunststoff-Verbundmaterial, mit einem Stegnahtverschluß, der sich entlang der Oberseite der Packung und beidseitig daran anschließende, an die Seitenwandungen der Packung anlegbare, durch Nutlinien begrenzte Faltdreiecke erstreckt, die von der oberen Seitenwandkante ausgehende, schräg auf den Stegnahtverschluß zu verlaufende Nutlinien aufweisen und von denen zumindest eines mit einer von Schwächungslinien oder dergleichen gebildeten, aufreißbaren Ausgießöffnung versehen ist, dadurch gekennzeichnet, daß die Schwächungslinien in dem das Faltdreieck bildenden Wandungsteil U-förmig angeordnet sind und von einer parallel zur Grundlinie (5) des Stegnahtverschlusses (4) verlaufenden, basisartigen Perforationslinie (14) und senkrecht dazu verlaufenden, im Bereich der schräg verlaufenden Nutlinien (11, 12) auf die basisartige Perforationslinie (14) auftreffenden schenkelartigen Perforationslinien (15, 16). gebildet sind.1. Pack of sheet material, such as paper, cardboard or the like, in particular cuboid liquid pack made of cardboard-plastic composite material, with a web seam closure that is along the top of the pack and on both sides adjoining it, which can be placed on the side walls of the pack and is limited by groove lines Folding triangles extends, the groove lines starting from the upper side wall edge and extending obliquely to the web seam closure and of which at least one is provided with a tearable pouring opening formed by weakening lines or the like, characterized in that the weakening lines in the wall part U- forming the folding triangle are arranged in a shape and from a base-like perforation line (14) running parallel to the base line (5) of the web seam closure (4) and perpendicular to it, in the area of the oblique groove lines (11, 12) striking the base-like perforation line (14) line of perforations (15, 16). are formed. 2. Packung nach Anspruch 1, dadurch gekennzeichnet, daß die basisartige Perforationslinie (14) etwa auf halber Höhe der Vertikalen eines von der Seitenwandkante (7) und den schrägen Nutlinien (11, 12) gebildeten Dreiecks angeordnet ist.2. Pack according to claim 1, characterized in that the base-like perforation line (14) is arranged approximately halfway up the vertical of a triangle formed by the side wall edge (7) and the oblique groove lines (11, 12). 3. Packung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Perforationslinien (14, 15, 16) von einem die Wandung der Packungsfläche nur teilweise trennenden Halbschnitt gebildet sind.3. Pack according to claim 1 or 2, characterized in that the perforation lines (14, 15, 16) are formed by a half-cut separating the wall of the pack surface only partially. 4.. Packung aus flächigem Material, wie Papier, Karton oder dergleichen, insbesondere quaderförmige Flüssigkeitspackung aus Karton-Kunststoff-Verbundmaterial, mit einem Stegnahtverschluß, der sich über die Oberseite der Packung und beidseitig daran anschließende, an die Seitenwandungen der Packung anlegbare, durch Nutlinien begrenzte Faltdreiecke erstreckt, die von der oberen Seitenwandkante ausgehende, schräg auf den Stegnahtverschluß zu verlaufende Nutlinien aufweisen und von denen zumindest eines mit einem Aufreißverschluß versehen ist, der in dem das Faltdreieck bildenden Wandungsteil u-förmig verlaufende Schwächungslinien aufweise, die von einer parallel zur Grundlinie des Stegnahtverschlusses verlaufenden, basisartigen Perforationslinie und senkrecht dazu verlaufenden, im Bereich der schräg verlaufenden Nutlinien auf die basisartige Perforationslinie auftreffenden schenkelartigen Perforationslinien (15, 16) gebildet sind,
dadurch gekennzeichnet, daß im jeweiligen Eckbereich zwischen der basisartigen Perforationslinie (14) und den schenkelartigen Perforationslinien (15, 16) die Perforationslinien über die Abschrägung bzw. Abrundung miteinander verbunden sind.4 .. Pack of flat material, such as paper, cardboard or the like, in particular cuboid liquid pack made of cardboard-plastic composite material, with a web seam closure, which can be placed over the top of the pack and on both sides adjoining it, on the side walls of the pack, by groove lines limited folding triangles which have groove lines starting from the upper side wall edge and extending obliquely to the web seam closure and at least one of which is provided with a zipper which has U-shaped weakening lines in the wall part forming the folding triangle, which run from a parallel to the base line of the web seam closure, base-like perforation line and perpendicular to it, leg-like perforation lines (15, 16), which meet the base-like perforation line in the region of the oblique groove lines, are formed,
characterized in that in the respective corner area between the base-like perforation line (14) and the leg-like perforation lines (15, 16) the perforation lines are connected to one another via the bevel or rounding. 5. Packung nach Anspruch 4, dadurch gekennzeichnet, daß die Abrundung einen auf die Grundabmessungen der u-förmig angeordneten Perforationslinien (14, 15, 16) abgestimmten abgestimmten Radius aufweist.5. Pack according to claim 4, characterized in that the rounding has a matched to the basic dimensions of the u-shaped perforation lines (14, 15, 16) coordinated radius. 6. Packung nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß der Radius (R) in etwa der zu erwartenden maximalen Schwankungsbreite (SB) entspricht.6. Pack according to claim 4 or 5, characterized in that the radius (R) corresponds approximately to the expected maximum fluctuation range (SB). 7. Packung nach Anspruch 6, dadurch gekennzeichnet, daß der Radius der Bezeihung
Figure imgb0003
folgt.7. Package according to claim 6, characterized in that the radius of the relationship
Figure imgb0003
 follows. 8. Packung nach Anspruch 4, dadurch gekennzeichnet, daß die basisartige Performationslinie (14) etwa auf halber Höhe der Vertikalen eines von der Seitenwandkante (7) und den schrägen Nutlinien (11, 12) gebildeten Dreiecks angeordnet ist.8. Pack according to claim 4, characterized in that the base-like Performationslinie (14) is arranged approximately halfway up the vertical of a triangle formed by the side wall edge (7) and the oblique groove lines (11, 12). 9. Packung nach Anspruch 4, dadurch gekennzeichnet, daß die Performationslinien (14, 15, 16) von einem die Wandung der Packungsfläche nur teilweise trennenden Halbschnitt gebildet sind.9. Pack according to claim 4, characterized in that the perforation lines (14, 15, 16) are formed by a half-cut that only partially separates the wall of the pack surface.
EP88109883A 1987-07-23 1988-06-22 Package made of sheet material, such as paper, cardboard or the like, in particular a parallelepipedic package for liquids made of a cardboard-plastic composite Withdrawn EP0300211A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE8710092U 1987-07-23
DE8710092U DE8710092U1 (en) 1987-07-23 1987-07-23 Packaging made of flat material, such as paper, cardboard or similar, in particular cuboid liquid packaging made of cardboard-plastic composite material
DE8801139U 1988-02-01
DE8801139U DE8801139U1 (en) 1988-02-01 1988-02-01 Packaging made of flat material, such as paper, cardboard or similar, in particular cuboid liquid packaging made of cardboard-plastic composite material

Publications (1)

Publication Number Publication Date
EP0300211A1 true EP0300211A1 (en) 1989-01-25

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US (1) US4915236A (en)
EP (1) EP0300211A1 (en)
AU (1) AU1971488A (en)
DK (1) DK414088A (en)
IL (1) IL86845A0 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE467407B (en) * 1990-10-24 1992-07-13 Tetra Alfa Holdings OPENING DEVICE FOR PACKAGING CONTAINERS
SE502399C2 (en) * 1991-02-14 1995-10-16 Tetra Laval Holdings & Finance Packaging container provided with opening instructions
US5150833A (en) * 1992-03-09 1992-09-29 Hong Pi Lien Paper package for beverage
GB9421722D0 (en) * 1994-10-28 1994-12-14 Elopak Systems Packaging
US5601233A (en) * 1994-10-28 1997-02-11 Kao Corporation Container
DE69506841T2 (en) * 1994-11-16 1999-05-20 Legend Inc. Ltd., Vaduz LIQUID TANK AND METHOD FOR THE PRODUCTION THEREOF
US5851630A (en) * 1997-01-27 1998-12-22 Westvaco Corporation Container and blank for "duckbill" elimination
US6062470A (en) * 1997-04-04 2000-05-16 Sig Combibloc Inc. Tear-away package opening
US6098874A (en) * 1998-02-09 2000-08-08 Sig Combibloc Inc. Tear-away container top
US6241646B1 (en) 1998-02-09 2001-06-05 Sig Combibloc Inc. Tear-away container spout
US6766941B1 (en) 1998-02-09 2004-07-27 Sig Combibloc, Inc. Tear-away container top
US6209781B1 (en) 1999-02-26 2001-04-03 Liberty Carton Co. Disposable, foldable container
US6050484A (en) * 1999-07-21 2000-04-18 Fres-Co System Usa, Inc. Convertible-reclosable box/carton with pour spout
BRMU8902129U2 (en) * 2009-06-17 2011-02-22 Wellingthon Silva Gabriel sigh for packaging liquids for consumption: juices, milk, fermented milk, chocolate milk, coconut water and others
US9284091B2 (en) 2013-03-14 2016-03-15 David Lawrence SHALKOP Day of opening reminder for a container
ES2817299B2 (en) * 2019-10-02 2021-10-20 Ibanez Razola Pablo PACKAGING FOR LIQUIDS AND METHOD OF JOINT BETWEEN MULTILAYERS OF SUCH PACKAGE

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018694A1 (en) * 1979-05-08 1980-11-12 Ab Tetra Pak Packing containers with pouring spout
EP0132824A2 (en) * 1983-07-25 1985-02-13 Adolph Coors Company Milk carton blank and milk carton
DE8710092U1 (en) * 1987-07-23 1987-09-10 PKL Verpackungssysteme GmbH, 4000 Düsseldorf Packaging made of flat material, such as paper, cardboard or similar, in particular cuboid liquid packaging made of cardboard-plastic composite material
DE8801139U1 (en) * 1988-02-01 1988-03-17 PKL Verpackungssysteme GmbH, 4000 Düsseldorf Packaging made of flat material, such as paper, cardboard or similar, in particular cuboid liquid packaging made of cardboard-plastic composite material

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH415441A (en) * 1964-03-20 1966-06-15 Tepar Ag Device on square capsule packaging for opening and emptying the same
CH429571A (en) * 1965-01-29 1967-01-31 Tepar Ag A parallelepiped package made from a flexible, relatively stiff, sheet material shaped into a tube
US3957180A (en) * 1975-08-06 1976-05-18 Skillman Jack J Pour spout
DE3037067C2 (en) * 1980-10-01 1986-07-10 Altstädter Verpackungsvertriebs Gesellschaft mbH, 6102 Pfungstadt Liquid pack and device for making the same
IL71516A0 (en) * 1983-05-04 1984-07-31 Int Paper Co Carton with hinged opening and perforated hinged opening

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018694A1 (en) * 1979-05-08 1980-11-12 Ab Tetra Pak Packing containers with pouring spout
EP0132824A2 (en) * 1983-07-25 1985-02-13 Adolph Coors Company Milk carton blank and milk carton
DE8710092U1 (en) * 1987-07-23 1987-09-10 PKL Verpackungssysteme GmbH, 4000 Düsseldorf Packaging made of flat material, such as paper, cardboard or similar, in particular cuboid liquid packaging made of cardboard-plastic composite material
DE8801139U1 (en) * 1988-02-01 1988-03-17 PKL Verpackungssysteme GmbH, 4000 Düsseldorf Packaging made of flat material, such as paper, cardboard or similar, in particular cuboid liquid packaging made of cardboard-plastic composite material

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US4915236A (en) 1990-04-10
IL86845A0 (en) 1988-11-30
AU1971488A (en) 1989-01-27
DK414088D0 (en) 1988-07-22
DK414088A (en) 1989-01-24

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