EP0659151B1 - Tear-off package with pull tab - Google Patents

Tear-off package with pull tab Download PDF

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Publication number
EP0659151B1
EP0659151B1 EP94921516A EP94921516A EP0659151B1 EP 0659151 B1 EP0659151 B1 EP 0659151B1 EP 94921516 A EP94921516 A EP 94921516A EP 94921516 A EP94921516 A EP 94921516A EP 0659151 B1 EP0659151 B1 EP 0659151B1
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EP
European Patent Office
Prior art keywords
tear
edge
strip
pouch
edge zone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP94921516A
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German (de)
French (fr)
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EP0659151A1 (en
Inventor
Wilfried Jud
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Teich AG
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Teich AG
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    • 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
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5827—Tear-lines provided in a wall portion
    • B65D75/5833—Tear-lines provided in a wall portion for tearing out a portion of the wall
    • B65D75/5838—Tear-lines provided in a wall portion for tearing out a portion of the wall combined with separate fixed tearing means, e.g. tabs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S229/00—Envelopes, wrappers, and paperboard boxes
    • Y10S229/924—Means to facilitate gripping a tear strip
    • Y10S229/926—Pull tab located in a seam

Definitions

  • the invention relates to a tubular bag pack, according to the preamble of claim 1.
  • a pack of this type is known from WO 91/06488, which essentially also describes the selection for multilayer packaging materials which are used during the opening process, e.g. starting from two incisions in a packaging material edge zone, tear along approximately two parallel lines.
  • DE 38 36 227 A1 also describes a pack of the type mentioned at the outset, in which the packaging material is formed by a splice film. This is a monoaxially stretched plastic film, which, starting from a notch or an incision, practically always tears in the direction of stretching.
  • a grip tab is provided at the beginning of the tear-open area, which is formed by the material of the packaging material edge areas between the notches or line-shaped punchings.
  • a wrapping package with opening aid for cigars is known from US-A-2337741.
  • This opening aid is limited by two side notches in the edge area of the wrapping package, which extend from the adhesive-free edge zone to the sealing area.
  • the tear-open area thus lies between the two notches and can additionally be identified for the user by an information element, for example the tab 23 according to FIG. 1. Due to the relatively short notches, the packaging material can now be torn uncontrollably when tearing open.
  • the invention is based on the object of creating a pack of the type mentioned at the outset, which has a recognizable and manageable grip tab without there being any appreciable additional consumption of packaging material.
  • the grip tab can advantageously be narrower than the tear area.
  • the grip tab is wider than the tear area and outside of the Tear-open area releasably connected to the edge zone from which the tear-open area starts.
  • the line-shaped punchings in the edge zone from which the tear-open area starts do not extend to the free edge of this edge zone.
  • the seal of the connection area has a lower peel strength on average within the tear-open area than in the rest of the connection area, and in particular is also for this purpose, at least within the tear-open area, the sealing is advantageously implemented according to a cross line grid.
  • the packaging material is characterized in that it is composed of several layers which are selected from the series paper, unstretched polyolefin film or layer, aluminum foil, film made of biaxially stretched polypropylene, film made of biaxially stretched polyamide, film made of biaxially stretched polyethylene terephthalate and a subcomplex of two or three layers, optionally made of the above materials, whereby of all neighboring different layers in the packaging material, the one mentioned earlier in the series and, in the case of adjacent layers made of the same or similar material, the thinner one closer to the product, and whereby a sub-complex is considered to be one between the layers of which there are bonded bonds which are considerably stronger than the bonded bonds of the sub-complex and the other layers of the packaging material with one another.
  • this packaging material consists, for example, of a film made of biaxially oriented polypropylene (OPP) with a thickness of 0.015 - 0.020 mm, a 0.007 to 0.009 mm thick, printed aluminum foil and a paper with a grammage of 40 - 50 g / m 2 as well as a hot or cold seal coating applied in the profile, for example a cold adhesive coating based on latex with 2-7 g / m 2 solid.
  • OPP biaxially oriented polypropylene
  • the packaging machine On the packaging machine, two incisions are then punched into each of the packs to be produced, on one of the edges of the packaging material web pulled off the roll, and immediately afterwards on these incisions, on the inside of the packaging material web, an adhesive label forming the tab is applied.
  • the packaging material web is then wrapped around the continuously supplied packaged goods, e.g. Waffein, folded, their edges sealed together within a strip-shaped connection area, and the two edge zones, which are sealed together, which are referred to as "fins", turned over onto the surface of the pack in such a way that the edge zone containing the incisions comes to the outside.
  • packaged goods e.g. Waffein
  • the packaging material tube enclosing the packaged goods is now each provided with two transverse sealing seams running parallel to one another between two successive packaged goods and divided into individual tubular bag packs by separating cuts between these two transverse sealing seams. These transverse seals then form the "fins" of the tubular pouch that protrude from the packaging envelope.
  • Fig. 1 now shows schematically a perspective view of a tubular bag package for wafers produced in this way.
  • the adhesive label 6 serving as a grip tab which in this variant according to FIG. 1 has a width smaller than the distance between the two incisions 4, is connected to part of its area between the two incisions 4 within the connecting area 1 with the edge zone 2, whereby but it does not occupy the entire width of the connection area 1.
  • the adhesive label 6 protrudes with the remaining part 7 of its surface beyond the edge 5 of the edge zone 2, which is large enough to open the package to be comfortably handled.
  • the adhesive label 6 advantageously consists of a blank of paper or a plastic film, for example of PET or PP, which is provided, for example, on one side with a self-adhesive coating over its partial surface to be bonded.
  • the total basis weight of the coated paper or the coated plastic film is approximately 60-100 g / m 2 .
  • the packaging envelope now has a strip-like tear-open area 8, the lateral boundaries of which are imaginary lines 9 on the packaging envelope, which form continuations of the incisions 4.
  • the seal in the connection area for example in the form of a cross line grid, is designed with increased peelability.
  • the protruding part 7 of the adhesive label 6 serving as a grip tab is grasped and pulled up in the direction of arrow 10.
  • the packaging material tears approximately along the two imaginary lines 9. This tearing is carried out to such an extent that there is an opening in the packaging envelope through which packaged goods can be removed without the structure of the packaging envelope being destroyed by the opening of the packaging.
  • Fig. 2 shows another variant of the pack according to FIG. 1 in a partial representation in the supervision, with the At the beginning of the tear-open area 8, the packaging envelope is shown broken away.
  • the adhesive label 11 is here designed with a width greater than the distance between the two incisions 4, that is to say therefore wider than the tear-open area 8. Hatched in an area 12 between the two incisions 4 in FIG. 2, the adhesive label 11 is firmly attached to the edge zone 2 and releasably connected to it in two areas 13 beyond the incisions 4, that is to say outside the tear-open area 8.
  • the connection of the adhesive label 11 to the packaging material edge zone 2 is first sheared off in the areas 13, after which the opening takes place analogously to that described with reference to FIG. 1.
  • An advantage of this variant according to FIG. 2 - especially in the case of packs made of a packaging material with a high tendency to tear - is that the incisions 4 are covered by the adhesive label 11 immediately after they have been punched in, so that there is a risk that the packaging material will start from the incisions during the packaging process 4 tears, is avoided or at least significantly reduced.
  • the pack according to the invention can primarily be used as a pack for foods such as chocolates or baked goods which are optionally gastight or which are advantageously tubular bag packs or bag packs.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Bag Frames (AREA)

Abstract

PCT No. PCT/AT94/00086 Sec. 371 Date Mar. 8, 1995 Sec. 102(e) Date Mar. 8, 1995 PCT Filed Jul. 7, 1994 PCT Pub. No. WO95/01922 PCT Pub. Date Jan. 19, 1995In a package, especially a pouch package, with a covering made of a flat foldable packaging material in which the inner sides of two strip-like edge regions are sealed together in a joining region to form the covering, there is a strip-like tear region in the package covering which starts from one of the two strip-like edge regions, extends substantially prependicularly thereto and has notches or linear punched-out regions only within the strip-like edge region. Here, at the beginning of the rear region between the two strip-like edge regions, there is a tab of flat material which is firmly secured to the edge region from which the tear region starts and is secured detachably or not at all to the other edge region, while the remainder of the flat of the tab projects beyond the edge of the edge region.

Description

Technisches GebietTechnical field

Die Erfindung betrifft eine Schlauchbeutelpackung, nach dem Oberbegriff des Anspruchs 1.The invention relates to a tubular bag pack, according to the preamble of claim 1.

Stand der TechnikState of the art

Eine Packung dieser Art ist aus der WO 91/06488 bekannt, in der im wesentlichen auch die Auswahl für mehrschichtige Verpackungsmaterialien beschrieben wird, die beim Öffnungsvorgang, z.B. ausgehend von zwei Einschnitten an einer Verpackungsmaterial-Randzone etwa längs zwei parallelen Linien einreißen. Die DE 38 36 227 A1 beschreibt ferner eine Packung der eingangs genannten Art, bei der das Verpackungsmaterial durch eine Spleißfolie gebildet wird. Das ist eine monoaxial gereckte Kunststoffolie, welche, ausgehend von einer Kerbe oder einem Einschnitt, praktisch immer in Reckrichtung einreißt. Bei diesen bekannten Packungen ist am Anfang des Aufreißbereiches eine Grifflasche vorgesehen, welche durch Material der Verpackungsmaterial-Randbereiche zwischen den Einkerbungen oder linienförmigen Durchstanzungen gebildet ist.A pack of this type is known from WO 91/06488, which essentially also describes the selection for multilayer packaging materials which are used during the opening process, e.g. starting from two incisions in a packaging material edge zone, tear along approximately two parallel lines. DE 38 36 227 A1 also describes a pack of the type mentioned at the outset, in which the packaging material is formed by a splice film. This is a monoaxially stretched plastic film, which, starting from a notch or an incision, practically always tears in the direction of stretching. In these known packs, a grip tab is provided at the beginning of the tear-open area, which is formed by the material of the packaging material edge areas between the notches or line-shaped punchings.

In der genannten WO 91/06488 sind dazu einige Lösungen beschrieben, bei denen zwischen dem Verbindungsbereich und dem freien Rand einer der Randzonen ein ungesiegelter Bereich bleibt, der zwischen den beiden Einkerbungen oder linienförmigen Durchstanzungen die Grifflasche bildet. Hier muß zwischen der Forderung, daß die Grifflasche für eine gute Handhabung nicht zu klein, der ungesiegelte Bereich aus Gründen der Materialökonomie aber nicht zu breit sein darf, ein Kompromiß gefunden werden.In WO 91/06488, a number of solutions are described in which an unsealed area remains between the connection area and the free edge of one of the edge zones, which area forms the grip tab between the two notches or linear punchings. Here, between the requirement A compromise can be found that the grip tab is not too small for good handling, but the unsealed area must not be too wide for reasons of material economy.

Ferner ist aus der US-A-2337741 eine Einschlagpackung mit Öffnungshilfe für Zigarren vorbekannt. Diese Öffnungshilfe wird durch zwei seitliche Einkerbungen im Randbereich der Einschlagpackung begrenzt, welche sich von der kleberfreien Randzone bis hin zum Siegelbereich erstrecken. Der Aufreißbereich liegt somit zwischen den beiden Einkerbungen und kann zusätzlich mit einem Hinweiselement, beispielsweise der Lasche 23 gemäß Figur 1, für den Benutzer gekennzeichnet sein. Aufgrund der relativ kurzen Einkerbungen kann es nun beim Aufreißen zu einem unkontrollierbaren Ein- bzw. Weiterreißen des Verpackungsmaterials kommen.Furthermore, a wrapping package with opening aid for cigars is known from US-A-2337741. This opening aid is limited by two side notches in the edge area of the wrapping package, which extend from the adhesive-free edge zone to the sealing area. The tear-open area thus lies between the two notches and can additionally be identified for the user by an information element, for example the tab 23 according to FIG. 1. Due to the relatively short notches, the packaging material can now be torn uncontrollably when tearing open.

Darstellung der ErfindungPresentation of the invention

Der Erfindung liegt nun die Aufgabe zugrunde, eine Packung der eingangs der Beschreibung genannten Art zu schaffen, die eine erkennbare und hantierbare Grifflasche aufweist, ohne daß es zu einem nennenswerten Mehrverbrauch an Verpackungsmaterial kommt.The invention is based on the object of creating a pack of the type mentioned at the outset, which has a recognizable and manageable grip tab without there being any appreciable additional consumption of packaging material.

Die der Erfindung zugrundeliegende Aufgabe wird durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.The object on which the invention is based is achieved by the characterizing features of claim 1.

Dabei kann die Grifflasche vorteilhaft schmäler als der Aufreißbereich sein. In einer vorteilhaften Ausgestaltung der Erfindung ist die Grifflasche breiter als der Aufreißbereich und außerhalb des Aufreißbereiches mit der Randzone, von dem der Aufreißbereich ausgeht, lösbar verbunden.The grip tab can advantageously be narrower than the tear area. In an advantageous embodiment of the invention, the grip tab is wider than the tear area and outside of the Tear-open area releasably connected to the edge zone from which the tear-open area starts.

Gemäß einer weiteren vorteilhaften Ausgestaltung reichen die linienförmigen Durchstanzungen in der Randzone, von der der Aufreißbereich ausgeht, nicht bis zum freien Rand dieser Randzone.According to a further advantageous embodiment, the line-shaped punchings in the edge zone from which the tear-open area starts do not extend to the free edge of this edge zone.

In weiteren vorteilhaften Ausgestaltungen der erfindungsgemäßen Packung hat innerhalb des Aufreißbereiches die Siegelung des Verbindungsbereiches im Mittel eine geringere schälfestigkeit als im Rest des Verbindungsbereiches bzw. ist insbesondere auch zu diesem Zweck zumindest innerhalb des Aufreißbereiches die Siegelung vorteilhaft nach einem Kreuzlinienraster realisiert.In further advantageous refinements of the pack according to the invention, the seal of the connection area has a lower peel strength on average within the tear-open area than in the rest of the connection area, and in particular is also for this purpose, at least within the tear-open area, the sealing is advantageously implemented according to a cross line grid.

Nach einer letzten vorteilhaften Ausgestaltung der Erfindung ist das Verpackungsmaterial dadurch gekennzeichnet, daß es aus mehreren Schichten aufgebaut ist, die ausgewählt sind aus der Reihe Papier, ungereckte Polyolefinfolie oder -schicht, Aluminiumfolie, Folie aus biaxial gerecktem Polypropylen, Folie aus biaxial gerecktem Polyamid, Folie aus biaxial gerecktem Polyethylenterephthalat und Subkomplex aus zwei oder drei Lagen aus gegebenenfalls den vorstehenden Materialien, wobei von allen benachbarten unterschiedlichen Schichten im Verpackungsmaterial die jeweils in der Reihe früher genannte und bei benachbarten Schichten aus gleichem oder gleichartigem Material die jeweils dünnere dem Packungsgut näher liegt, und wobei als Subkomplex einer gilt, zwischen dessen Lagen Verbundhaftungen bestehen, die wesentlich stärker sind als die Verbundhaftungen des Subkomplexes und der übrigen Schichten des Verpackungsmaterials untereinander.According to a last advantageous embodiment of the invention, the packaging material is characterized in that it is composed of several layers which are selected from the series paper, unstretched polyolefin film or layer, aluminum foil, film made of biaxially stretched polypropylene, film made of biaxially stretched polyamide, film made of biaxially stretched polyethylene terephthalate and a subcomplex of two or three layers, optionally made of the above materials, whereby of all neighboring different layers in the packaging material, the one mentioned earlier in the series and, in the case of adjacent layers made of the same or similar material, the thinner one closer to the product, and whereby a sub-complex is considered to be one between the layers of which there are bonded bonds which are considerably stronger than the bonded bonds of the sub-complex and the other layers of the packaging material with one another.

Beschreibung der Zeichnungen und einige Wege zur Ausführung der ErfindungDescription of the drawings and some ways of carrying out the invention

Die Erfindung wird nachstehend anhand der Figuren eingehend erläutert, wobei das Verpackungsmaterial zum besseren Verständnis übertrieben dick dargestellt ist.The invention is explained in detail below with reference to the figures, the packaging material being shown in an exaggerated thickness for better understanding.

Zur Herstellung dieser Packung geht man bei den nachfolgend beschriebenen Beispielen von einem dreischichtigen Verpackungsmaterial aus. Dieses Verpackungsmaterial besteht - von der Packungsaußenseite ausgehend - z.B. aus einer Folie aus biaxial gerecktem Polypropylen (OPP) einer Dicke von 0,015 - 0,020 mm, einer 0,007 bis 0,009 mm starken, bedruckten Aluminiumfolie und einem Papier einer Grammatur von 40 - 50 g/m2 sowie einer im Profil aufgebrachten Heiß- oder Kaltsiegelbeschichtung, z.B. einer Kaltklebebeschichtung auf Latexbasis mit 2 - 7 g/m2 Feststoff. Die drei Schichten sind auf übliche Weise mittels eines Kaschierklebers miteinander verbunden.In the examples described below, a three-layer packaging material is used to manufacture this pack. Starting from the outside of the pack, this packaging material consists, for example, of a film made of biaxially oriented polypropylene (OPP) with a thickness of 0.015 - 0.020 mm, a 0.007 to 0.009 mm thick, printed aluminum foil and a paper with a grammage of 40 - 50 g / m 2 as well as a hot or cold seal coating applied in the profile, for example a cold adhesive coating based on latex with 2-7 g / m 2 solid. The three layers are connected to one another in the usual way by means of a lamination adhesive.

An der Verpackungsmaschine werden nun - für jede herzustellende Packung - an einem der Ränder der von der Rolle abgezogenen Verpackungsmaterialbahn zwei Einschnitte eingestanzt, und unmittelbar danach an diesen Einschnitten - an der Innenseite der Verpackungsmaterialbahn - ein die Grifflasche bildendes Klebeetikett aufgebracht. Danach wird die Verpackungsmaterialbahn um die kontinuierlich zugeführten Packungsgutstücke, z.B. Waffein, gefaltet, ihre Ränder innerhalb eines streifenförmigen Verbindungsbereiches miteinander versiegelt und die beiden miteinander versiegelten Randzonen, die man als "Finne" bezeichnet, so auf die Packungsoberfläche umgeschlagen, daß die die Einschnitte enthaltende Randzone nach außen zu liegen kommt. Der die Packungsgutstücke umschließende Verpackungsmaterial-Schlauch wird nun jeweils zwischen zwei aufeinanderfolgenden Packungsgutstücken mit zwei parallel zueinander verlaufenden Quersiegelungsnähten versehen und durch Trennschnitte zwischen diesen beiden Quersiegelungsnähten in Einzelschlauchbeutelpackungen unterteilt. Diese Quersiegelungen bilden dann die von der Packungshülle abstehenden "Flossen" der Schlauchbeutelpackung.On the packaging machine, two incisions are then punched into each of the packs to be produced, on one of the edges of the packaging material web pulled off the roll, and immediately afterwards on these incisions, on the inside of the packaging material web, an adhesive label forming the tab is applied. The packaging material web is then wrapped around the continuously supplied packaged goods, e.g. Waffein, folded, their edges sealed together within a strip-shaped connection area, and the two edge zones, which are sealed together, which are referred to as "fins", turned over onto the surface of the pack in such a way that the edge zone containing the incisions comes to the outside. The packaging material tube enclosing the packaged goods is now each provided with two transverse sealing seams running parallel to one another between two successive packaged goods and divided into individual tubular bag packs by separating cuts between these two transverse sealing seams. These transverse seals then form the "fins" of the tubular pouch that protrude from the packaging envelope.

Fig. 1 zeigt nun schematisch in perspektivischer Darstellung eine auf diese Weise hergestellte Schlauchbeutelpackung für Waffein. Man erkennt die in einem streifenförmigen Verbindungsbereich 1 miteinander durch Siegelung verbundenen Verpackungsmaterial-Randzonen 2 und 3, die als "Finne" auf die Oberfläche der Packungshülle umgeschlagen wird. An der nach außen zu liegen kommenden Randzone 2 sind die eingestanzten Einschnitte 4 zu erkennen, die vom Rand 5 der Randzone 2 ausgehend bis in den Verbindungsbereich 1 hineinreichen. Das als Grifflasche dienende Klebeetikett 6, das bei dieser Variante gemäß Fig. 1 eine Breite kleiner als der Abstand zwischen den beiden Einschnitten 4 aufweist, ist mit einem Teil seiner Fläche zwischen den beiden Einschnitten 4 innerhalb des Verbindungsbereichs 1 mit der Randzone 2 verbunden, wobei es aber nicht die ganze Breite des Verbindungsbereiches 1 einnimmt. Das Klebeetikett 6 ragt mit dem restlichen Teil 7 seiner Fläche über den Rand 5 der Randzone 2 hinaus, der dabei groß genug ist, um beim Öffnen der Packung bequem angefaßt zu werden. Das Klebeetikett 6 besteht dabei vorteilhaft aus einem Zuschnitt aus Papier oder einer Kunststoffolie, z.B. aus PET oder PP, der z.B. einseitig über seine zu verklebende Teilfläche mit einer Selbstklebebeschichtung versehen ist. Das Gesamt-Flächengewicht des beschichteten Papiers bzw. der beschichteten Kunststoffolie beträgt dabei etwa 60 - 100 g/m2. An seiner unbeschichteten Rückseite entsteht keine Verbindung des Klebeetiketts mit der Verpackungsmaterial-Randzone 3. Im Ergebnis weist nun die Packungshülle einen streifenförmigen Aufreißbereich 8 auf, dessen seitliche Begrenzungen gedachte Linien 9 an der Packungshülle sind, welche Fortsetzungen der Einschnitte 4 bilden. Zur Erleichterung des Aufreißvorganges ist gemäß einer Variante der Packung innerhalb des Aufreißbereiches 8 die Siegelung im Verbindungsbereich, z.B. in Form eines Kreuzlinienrasters, mit erhöhter Peelfähigkeit ausgeführt.Fig. 1 now shows schematically a perspective view of a tubular bag package for wafers produced in this way. One recognizes the packaging material edge zones 2 and 3 which are connected to one another by a seal in a strip-shaped connection area 1 and which is turned over as a "fin" on the surface of the packaging envelope. The stamped incisions 4, which extend from the edge 5 of the edge zone 2 into the connection area 1, can be seen on the edge zone 2 coming to the outside. The adhesive label 6 serving as a grip tab, which in this variant according to FIG. 1 has a width smaller than the distance between the two incisions 4, is connected to part of its area between the two incisions 4 within the connecting area 1 with the edge zone 2, whereby but it does not occupy the entire width of the connection area 1. The adhesive label 6 protrudes with the remaining part 7 of its surface beyond the edge 5 of the edge zone 2, which is large enough to open the package to be comfortably handled. The adhesive label 6 advantageously consists of a blank of paper or a plastic film, for example of PET or PP, which is provided, for example, on one side with a self-adhesive coating over its partial surface to be bonded. The total basis weight of the coated paper or the coated plastic film is approximately 60-100 g / m 2 . On its uncoated back there is no connection of the adhesive label to the packaging material edge zone 3. As a result, the packaging envelope now has a strip-like tear-open area 8, the lateral boundaries of which are imaginary lines 9 on the packaging envelope, which form continuations of the incisions 4. To facilitate the tear-open process, according to a variant of the packing within the tear-open area 8, the seal in the connection area, for example in the form of a cross line grid, is designed with increased peelability.

Zum Öffnen der Packung wird der als Grifflasche dienende überstehende Teil 7 des Klebeetiketts 6 angefaßt und in Richtung des Pfeils 10 nach oben gezogen. Dabei reißt das Verpackungsmaterial ausgehend von den Enden der Einschnitte 4 etwa längs den beiden gedachten Linien 9 ein. Dieses Einreißen wird so weit durchgeführt, daß sich eine Öffnung in der Packungshülle ergibt, durch die Packungsgut entnommen werden kann, ohne daß durch die Öffnung der Packung die Struktur der Packungshülle zerstört wird.To open the package, the protruding part 7 of the adhesive label 6 serving as a grip tab is grasped and pulled up in the direction of arrow 10. Starting from the ends of the incisions 4, the packaging material tears approximately along the two imaginary lines 9. This tearing is carried out to such an extent that there is an opening in the packaging envelope through which packaged goods can be removed without the structure of the packaging envelope being destroyed by the opening of the packaging.

Bei dem vorstehend beschriebenen Verpackungsmaterial erfolgt das Einreißen etwa längs parallelen Linien. Eine Regel zur Auswahl von mehrschichtigen Verpackungsmaterialien, die diese Eigenschaft haben, ist in der WO 91/06488 beschrieben. Die erfindungsgemäße Anordnung des als Grifflasche dienenden Klebeetiketts in Verbindung mit einem Verpackungsmaterial, das dieser Auswahlregel entspricht, bildet eine vorteilhafte Ausgestaltung der erfindungsgemäßen Packung.In the case of the packaging material described above, tearing occurs approximately along parallel lines. A rule for the selection of multilayer packaging materials that have this property is described in WO 91/06488. The arrangement according to the invention of the adhesive label serving as a grip tab in connection with a packaging material which corresponds to this selection rule forms an advantageous embodiment of the package according to the invention.

Fig. 2 zeigt eine andere Variante der Packung gemäß Fig. 1 in einer Teildarstellung in der Aufsicht, wobei an der Stelle des Anfangs des Aufreißbereiches 8 die Packungshülle aufgebrochen dargestellt ist. Im Gegensatz zur Packungsvariante gemäß Fig. 1 ist hier das Klebeetikett 11 mit einer Breite größer als der Abstand zwischen den beiden Einschnitten 4, das heißt also breiter als der Aufreißbereich 8 ausgeführt. In einem Bereich 12 zwischen den beiden Einschnitten 4 in Fig. 2, schraffiert dargestellt, ist das Klebeetikett 11 mit der Randzone 2 fest und in zwei Bereichen 13 jenseits der Einschnitte 4, also außerhalb des Aufreißbereiches 8, lösbar mit dieser verbunden. Beim Öffnungsvorgang wird die Verbindung des Klebeetiketts 11 mit der Verpackungsmaterial-Randzone 2 in den Bereichen 13 zunächst abgeschert, wonach die Öffnung analog wie anhand von Fig. 1 beschrieben erfolgt.Fig. 2 shows another variant of the pack according to FIG. 1 in a partial representation in the supervision, with the At the beginning of the tear-open area 8, the packaging envelope is shown broken away. In contrast to the pack variant according to FIG. 1, the adhesive label 11 is here designed with a width greater than the distance between the two incisions 4, that is to say therefore wider than the tear-open area 8. Hatched in an area 12 between the two incisions 4 in FIG. 2, the adhesive label 11 is firmly attached to the edge zone 2 and releasably connected to it in two areas 13 beyond the incisions 4, that is to say outside the tear-open area 8. During the opening process, the connection of the adhesive label 11 to the packaging material edge zone 2 is first sheared off in the areas 13, after which the opening takes place analogously to that described with reference to FIG. 1.

Ein Vorteil dieser Variante gemäß Fig. 2 besteht - insbesondere bei Packungen aus einem Verpackungsmaterial mit hoher Weiterreißneigung - darin, daß die Einschnitte 4 unmittelbar nach deren Einstanzen vom Klebeetikett 11 abgedeckt werden, sodaß die Gefahr, daß das Verpackungsmaterial während des Verpackungsvorganges ausgehend von den Einschnitten 4 einreißt, vermieden oder doch wesentlich verringert wird.An advantage of this variant according to FIG. 2 - especially in the case of packs made of a packaging material with a high tendency to tear - is that the incisions 4 are covered by the adhesive label 11 immediately after they have been punched in, so that there is a risk that the packaging material will start from the incisions during the packaging process 4 tears, is avoided or at least significantly reduced.

Bei nicht zu dicken Verpackungsmaterialien können nach einer anderen Variante gemäß Fig. 3 statt der vom Rand 5 der Randzone 2 ausgehenden Einschnitte 4 zwei kurze linienförmige Durchstanzungen 14 angebracht werden, die nicht ganz bis zu diesem Rand 5 reichen. Beim Öffnungsvorgang werden die dabei verbleibenden schmalen Stege 15 zwischen dem Rand 5 und den Durchstanzungen 14 einfach durchgerissen. Auch durch diese Maßnahme wird die Gefahr des Einreißens des Verpackungsmaterials beim Öffnungsvorgang verringert.In the case of packaging materials which are not too thick, in accordance with another variant according to FIG. 3, instead of the incisions 4 starting from the edge 5 of the edge zone 2, two short linear punchings 14 can be made which do not extend all the way to this edge 5. During the opening process, the remaining narrow webs 15 are simply torn between the edge 5 and the punchings 14. This measure also reduces the risk of tearing the packaging material during the opening process.

Gewerbliche AnwendungCommercial application

Die erfindungsgemäße Packung kann in erster Linie als Packung für Lebensmittel wie Schokoladen oder Dauerbackwaren eingesetzt werden, die gegebenenfalls gasdicht ausgeführt bzw. vorteilhaft Schlauchbeutelpackungen oder Beutelpackungen sind.The pack according to the invention can primarily be used as a pack for foods such as chocolates or baked goods which are optionally gastight or which are advantageously tubular bag packs or bag packs.

Claims (7)

  1. A pouch-type package which is formed from a planar, foldable packaging material, wherein to form the pouch two strip-like edge zones (2,3) are joined together, particularly on their inner sides, in a junction region (1) by a sealing in such a way that the sealed-together edge zones are folded over on to the package surface in the form of a fin, wherein a strip-like tear-off portion (8), which starts from one of the two strip-like edge zones and extends substantially perpendicular to this edge zone, has incisions (4) or linear perforations and also, optionally, weakening lines on its lateral boundaries, only within the strip-like edge zone, and wherein at the start of the tear-off portion (8) a grip tab (6) of planar material is provided,
    characterised in that the the grip tab (6) comprises a separate piece of material and is so arranged between the two strip-like edge zones (2,3) that it is attached to the edge zone (2), from which the tear-off portion (8) starts, but is not attached to or is detachable from the other edge zone, the grip tab (6) projecting with its remaining surface portion (7) beyond the edge (5) of the edge zone (2), from which the tear-off portion (8) starts.
  2. A pouch-type package according to Claim 1, characterised in that grip tab (6) is narrower than the tear-off portion (8).
  3. A pouch-type package according to Claim 1, characterised in that the grip tab (6) is wider than the tear-off portion (8) and outside the tear-off portion (8) is detachably connected to the edge zone (2), from which the tear-off portion (8) starts.
  4. A pouch-type package according to Claim 1 or 2, characterised in that in the edge zone (2), from which the tear-off portion (8) starts, the linear perforations (14) do not extend up to the free edge (5) of this edge zone (2).
  5. A pouch-type package according to any one of Claims 1 to 4, characterised in that within the tear-off portion (8) the sealing of the junction region (1) has, on average, lower peeling resistance than in the remainder of the junction region (1).
  6. A pouch-type package according to any one of Claims 1 to 5, characterised in that at least within the tear-off portion (8) the sealing of the junction region is in the form of a cross-line grid.
  7. A pouch-type package according to any one of Claims 1 to 6, characterised by a packaging material which is built up with several layers selected from the group comprising paper, unstretched polyolefin sheet or film, aluminium foil, biaxially stretched polypropylene film, biaxially stretched polyamide film, biaxially stretched polyethylene terephthalate film and a composite of two or three layers of, optionally, the foregoing materials, wherein of all the adjacent different layers in the packaging material the respective layer in the group previously mentioned and with adjacent layers of like or similar material the respectively thinner layer is situated nearer the packaged goods, and wherein a sub-composite is used, between the layers of which there are adhesion which are substantially stronger than the adhesion between the sub-composite and the remaining layers of the packaging material.
EP94921516A 1993-07-08 1994-07-07 Tear-off package with pull tab Expired - Lifetime EP0659151B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT134793 1993-07-08
AT1347/93 1993-07-08
PCT/AT1994/000086 WO1995001922A1 (en) 1993-07-08 1994-07-07 Tear-off package with pull tab

Publications (2)

Publication Number Publication Date
EP0659151A1 EP0659151A1 (en) 1995-06-28
EP0659151B1 true EP0659151B1 (en) 1997-10-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP94921516A Expired - Lifetime EP0659151B1 (en) 1993-07-08 1994-07-07 Tear-off package with pull tab

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US (1) US5582342A (en)
EP (1) EP0659151B1 (en)
AT (1) ATE159691T1 (en)
DE (1) DE59404470D1 (en)
WO (1) WO1995001922A1 (en)

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Also Published As

Publication number Publication date
DE59404470D1 (en) 1997-12-04
US5582342A (en) 1996-12-10
WO1995001922A1 (en) 1995-01-19
EP0659151A1 (en) 1995-06-28
ATE159691T1 (en) 1997-11-15

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