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EP0659151A1 - Tear-off package with pull tab. - Google Patents

Tear-off package with pull tab.

Info

Publication number
EP0659151A1
EP0659151A1 EP94921516A EP94921516A EP0659151A1 EP 0659151 A1 EP0659151 A1 EP 0659151A1 EP 94921516 A EP94921516 A EP 94921516A EP 94921516 A EP94921516 A EP 94921516A EP 0659151 A1 EP0659151 A1 EP 0659151A1
Authority
EP
European Patent Office
Prior art keywords
tear
edge
open area
strip
area
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP94921516A
Other languages
German (de)
French (fr)
Other versions
EP0659151B1 (en
Inventor
Wilfried Jud
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.)
Teich AG
Original Assignee
Teich AG
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.)
Filing date
Publication date
Application filed by Teich AG filed Critical Teich AG
Publication of EP0659151A1 publication Critical patent/EP0659151A1/en
Application granted granted Critical
Publication of EP0659151B1 publication Critical patent/EP0659151B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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 pack with a casing, which is formed from a flat and foldable packaging material, of which two strip-shaped edge zones are formed to form the casing, in particular on their inner sides in a connection area, preferably by a seal, such as e.g. a tubular bag package, a strip-shaped tear-open area of the package envelope, which starts from one of the two strip-shaped edge zones and extends essentially perpendicularly to this edge zone, has notches or line punchings as well as lines of weakness at its lateral boundaries only within the strip-shaped edge zone.
  • a seal such as e.g. a tubular bag package
  • a strip-shaped tear-open area of the package envelope which starts from one of the two strip-shaped edge zones and extends essentially perpendicularly to this edge zone, has notches or line punchings as well as lines of weakness at its lateral boundaries only within the strip-shaped edge zone.
  • 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 two parallel lines.
  • DE 38 36 227 AI also describes a pack of the type mentioned, 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.
  • 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 object on which the invention is based is achieved in the pack according to the invention, which is characterized in that at the beginning of the tear-open area between the two strip-shaped edge zones with a part of its surface a grip tab made of flat material is arranged, which is connected to the edge zone from which the tear-open area comes out, firmly, is not or detachably connected to the other edge zone, while the grip tab with its remaining surface part protrudes beyond the edge of the edge zone from which the tear area starts.
  • the grip tab can advantageously be narrower than the tear area.
  • the grip tab is detachably connected wider than the tear-open area and outside the tear-open area 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 seal 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 of 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 whose layers there are bonded bonds that 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 grip tab. Then the packaging material web is folded around the continuously supplied packaged goods, for example waffles, their edges are sealed to one another within a strip-shaped connection area and the two sealed-off edge zones, which are referred to as "fins", are folded over onto the surface of the pack in such a way that the incisions are made containing edge zone 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 now shows schematically a perspective view of a tubular bag pack 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 with part of its surface area between the two incisions 4 within the connection area 1 with the edge zone 2 connected, but it does not occupy the entire width of the connection area 1.
  • the adhesive label 6 projects 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 handled comfortably.
  • 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-shaped tear-open area 8, the lateral boundaries of which are imaginary lines 9 on the packaging envelope, which are continuations of the incisions 4 form.
  • the seal in the connection area for example in the form of a cross line grid, is designed with increased peelability.
  • the projecting part 7 of the adhesive label 6 serving as a grip tab is grasped and pulled upwards in the direction of the 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 package 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 that it is 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 - in particular 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 during the packaging process tears from the incisions 4, 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.

Landscapes

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

Abstract

In 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 (2, 3) are sealed together in a jointing region (1) to form the covering, there is a strip-like tear region (8) in the package covering which starts from one of the two strip-like edge regions (2), extends substantially perpendicularly thereto and has notches or linear punched-out regions only within the strip-like edge region (2). Here, at the beginning of the tear region (8) between the two strip-like edge regions (2, 3), there is a tab of flat material which is firmly secured to the edge region (2) from which the tear region (8) starts and is secured detachably or not at all to the other edge region (3), while the remainder of the flat (7) of the tab projects beyond the edge (5) of the edge region (2).

Description

Aufreisspac ung mit Aufziehlasche Technisches Gebiet Tear-off pack with pull tab Technical area
Die Erfindung betrifft eine Packung mit einer Hülle, die aus einem flächigen und faltbaren Verpackungsmaterial gebildet ist, von dem zur Ausbildung der Hülle zwei streifenförmige Randzonen, insbesondere an ihren Innenseiten in einem Verbindungsbereich vorzugsweise durch eine Versiegelung miteinander verbunden sind, wie z.B. eine Schlauchbeutelpackung, wobei ein streifenformiger Aufreißbereich der Packungshülle, der von einer der beiden streifenförmigen Randzonen ausgeht und sich im wesentlichen senkrecht zu dieser Randzone erstreckt, an seinen seitlichen Begrenzungen nur innerhalb der streifenförmigen Randzone Einkerbungen oder linienförmige Durchstanzungen sowie gegebenen¬ falls Schwächungslinien aufweist.The invention relates to a pack with a casing, which is formed from a flat and foldable packaging material, of which two strip-shaped edge zones are formed to form the casing, in particular on their inner sides in a connection area, preferably by a seal, such as e.g. a tubular bag package, a strip-shaped tear-open area of the package envelope, which starts from one of the two strip-shaped edge zones and extends essentially perpendicularly to this edge zone, has notches or line punchings as well as lines of weakness at its lateral boundaries only within the strip-shaped edge zone.
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 Verpackungs¬ materialien 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 AI 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 two parallel lines. DE 38 36 227 AI also describes a pack of the type mentioned, 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 beschrie¬ ben, bei denen zwischen dem Verbindungsbereich und dem freien Rand einer der Randzonen ein ungesiegelter Bereich bleibt, der zwischen den beiden Einkerbungen oder linienförmigen Durchstan¬ zungen 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 the aforementioned WO 91/06488, some 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 line-shaped 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.
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 in der erfindungsgemäßen Packung gelöst, die dadurch gekennzeichnet ist, daß am Beginn des Aufreißbereichs zwischen den beiden streifenförmigen Randzonen mit einem Teil ihrer Fläche eine Grifflasche aus flächigem Material angeordnet ist, die dabei mit der Randzone, von der der Aufreißbereich ausgeht, fest, mit der anderen Randzone nicht oder lösbar verbunden ist, während die Grifflasche mit ihrem restlichen Flächenteil über den Rand der Randzone, von der der Aufreißbereich ausgeht, hinausragt. Dabei kann die Grifflasche vorteilhaft schmäler als der Aufreißbereich sein.The object on which the invention is based is achieved in the pack according to the invention, which is characterized in that at the beginning of the tear-open area between the two strip-shaped edge zones with a part of its surface a grip tab made of flat material is arranged, which is connected to the edge zone from which the tear-open area comes out, firmly, is not or detachably connected to the other edge zone, while the grip tab with its remaining surface part protrudes beyond the edge of the edge zone from which the tear area starts. The grip tab can advantageously be narrower than the tear area.
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.In an advantageous embodiment of the invention, the grip tab is detachably connected wider than the tear-open area and outside the tear-open area 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 seal 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 Subkom- plexes 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 of 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 whose layers there are bonded bonds that 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 Weσe zur Ausführung derDescription of the drawings and some ways to carry out the
Erfindunginvention
Die Erfindung wird nachstehend anhand der Figuren eingehend erläutert, wobei das Verpackungsmaterial zum besseren Verständ¬ nis 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 be¬ schriebenen Beispielen von einem dreischichtigen Verpackungsma¬ terial 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. An der Verpackungsmaschine werden nun - für jede herzustellende Packung - an einem der Ränder der von der Rolle abgezogenen Verpackungsmaterialbahn zwei Einschnitte eingestanzt, und unmit¬ telbar danach an diesen Einschnitten - an der Innenseite der Verpackungsmaterialbahn - ein die Grifflasche bildendes Klebe¬ etikett aufgebracht. Danach wird die Verpackungsmaterialbahn um die kontinuierlich zugeführten Packungsgutstücke, z.B. Waffeln, gefaltet, ihre Ränder innerhalb eines streifenförmigen Verbin¬ dungsbereiches 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 Packungsgut¬ stücken mit zwei parallel zueinander verlaufenden Quersiege- lungsnähten versehen und durch Trennschnitte zwischen diesen beiden Quersiegelungsnähten in Einzelschlauchbeutelpackungen unterteilt. Diese Quersiegelungen bilden dann die von der Packungshülle abstehenden "Flossen" der Schlauchbeutelpackung.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. 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 grip tab. Then the packaging material web is folded around the continuously supplied packaged goods, for example waffles, their edges are sealed to one another within a strip-shaped connection area and the two sealed-off edge zones, which are referred to as "fins", are folded over onto the surface of the pack in such a way that the incisions are made containing edge zone 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 Waffeln. Man erkennt die in einem streifenförmigen Verbindungs¬ bereich 1 miteinander durch Siegelung verbundenen Verpackungs¬ material-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 auf¬ weist, ist mit einem Teil seiner Fläche zwischen den beiden Ein- schnitten 4 innerhalb des Verbindungsbereichs 1 mit der Randzone 2 verbunden, wobei es aber nicht die ganze Breite des Verbin¬ dungsbereiches 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 Kunst- stoffolie, z.B. aus PET oder PP, der z.B. einseitig über seine zu verklebende Teilfläche mit einer Selbstklebebeschichtung ver¬ sehen 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-Rand¬ zone 3. Im Ergebnis weist nun die Packungshülle einen streifen¬ förmigen Aufreißbereich 8 auf, dessen seitliche Begrenzungen gedachte Linien 9 an der Packungshülle sind, welche Fort¬ setzungen der Einschnitte 4 bilden. Zur Erleichterung des Aufreißvorganges ist gemäß einer Variante der Fackung innerhalb des Aufreißbereiches 8 die Siegelung im Verbindungsbereich, z.B. in Form eines Kreuzlinienrasters, mit erhöhter Peelfähigkeit ausgeführt.1 now shows schematically a perspective view of a tubular bag pack 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 connecting 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 with part of its surface area between the two incisions 4 within the connection area 1 with the edge zone 2 connected, but it does not occupy the entire width of the connection area 1. The adhesive label 6 projects 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 handled comfortably. 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-shaped tear-open area 8, the lateral boundaries of which are imaginary lines 9 on the packaging envelope, which are continuations of the incisions 4 form. 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 über¬ stehende 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 durchge- führt, 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 projecting part 7 of the adhesive label 6 serving as a grip tab is grasped and pulled upwards in the direction of the 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 Eigen¬ schaft 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 Ausge¬ staltung 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 which 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 package 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 packaging 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 that it is 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 Weiter- reißneigung - darin, daß die Einschnitte 4 unmittelbar nach deren Einstanzen vom Klebeetikett 11 abgedeckt werden, sodaß die Gefahr, daß das Verpackungsmaterial während des Verpackungs¬ vorganges ausgehend von den Einschnitten 4 einreißt, vermieden oder doch wesentlich verringert wird.An advantage of this variant according to FIG. 2 - in particular 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 during the packaging process tears from the incisions 4, 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 Durchstan¬ zungen 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 Öffnungs organg verringert.In the case of packaging materials that 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 line-shaped punchings 14 can be made which do not extend all the way to this edge 5. During the opening process, the narrow webs 15 remaining between the edge 5 and the punched holes 14 are simply torn through. This measure also reduces the risk of tearing the packaging material when opening.
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

Patentansprüche: Claims:
1. Packung mit einer Hülle, die aus einem flächigen und falt- baren Verpackungsmaterial gebildet ist, von dem zur1. Pack with a sleeve, which is formed from a flat and foldable packaging material from which to
Ausbildung der Hülle zwei streifenförmige Randzonen, insbesondere an ihren Innenseiten in einem Verbindungs¬ bereich vorzugsweise durch eine Versiegelung miteinander verbunden sind, wobei ein streifenformiger Aufreißbereich der Packungshülle, der von einer der beiden streifen¬ förmigen Randzonen ausgeht und sich im wesentlichen senkrecht zu dieser Randzone erstreckt, an seinen seit¬ lichen Begrenzungen nur innerhalb der streifenförmigen Randzone Einkerbungen oder linienförmige Durchstanzungen sowie gegebenenfalls Schwächungslinien aufweist, dadurch gekennzeichnet, daß am Beginn des Aufreißbereichs (8) zwischen den beiden streifenförmigen Randzonen (2, 3) mit einem Teil ihrer Fläche eine Grifflasche aus flächigem Material angeordnet ist, die dabei mit der Randzone (2), von der der Aufreißbereich (8) ausgeht, fest, mit der anderen Randzone (3) nicht oder lösbar verbunden ist, während die Grifflasche mit ihrem restlichen Flächenteil (7) über den Rand (5) der Randzone (2), von der der Aufreißbereich (8) ausgeht, hinausragt.Formation of the casing two strip-shaped edge zones, in particular on their inner sides in a connection area, preferably connected to one another by a seal, a strip-shaped tear-open area of the packing casing starting from one of the two strip-shaped edge zones and extending essentially perpendicular to this edge zone , has notches or line-shaped punchings as well as lines of weakness at its lateral boundaries only within the strip-shaped edge zone, characterized in that at the beginning of the tear-open area (8) between the two strip-shaped edge zones (2, 3) a grip tab is made with part of their surface flat material is arranged, which is fixed to the edge zone (2) from which the tear-open area (8) starts, with the other edge zone (3) not or detachably, while the handle tab with its remaining surface part (7) over the Edge (5) of the edge zone (2), from which the tear area (8) extends, protrudes.
2. Packung nach Anspruch 1, dadurch gekennzeichnet, daß die Grifflasche schmäler als der Aufreißbereich (8) ist.2. Pack according to claim 1, characterized in that the grip tab is narrower than the tear-open area (8).
3. Packung nach Anspruch 1, dadurch gekennzeichnet, daß die Grifflasche breiter als der Aufreißbereich (8) ist und außerhalb des Aufreißbereiches (8) mit der Randzone (2), von dem der Aufreißbereich (8) ausgeht, lösbar verbunden ist.3. Pack according to claim 1, characterized in that the grip tab is wider than the tear-open area (8) and outside the tear-open area (8) with the edge zone (2), from which the tear-open area (8) starts, is releasably connected.
4. Packung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die linienförmigen Durchstanzungen (14) in der Randzone (2), von der der Aufreißbereich ausgeht, nicht bis zum freien Rand (5) dieser Randzone (2) reichen. 4. Pack according to claim 1 or 2, characterized in that the line-shaped punchings (14) in the edge zone (2) from which the tear-open area starts do not extend to the free edge (5) of this edge zone (2).
5. Packung nach einem der Ansprüche 1 bis 4, dadurch gekenn¬ zeichnet, daß innerhalb des Aufreißbereiches (8) die Siege- lung des Verbindungsbereiches (1) im Mittel eine geringere Schälfestigkeit hat als im Rest des Verbindungsbereiches (1).5. Pack according to one of claims 1 to 4, characterized gekenn¬ characterized in that within the tear area (8) the seal of the connection area (1) has a lower peel strength on average than in the rest of the connection area (1).
6. Packung nach einem der Ansprüche 1 bis 5, dadurch gekenn- zeichnet, daß zumindest innerhalb des Aufreißbereiches (8) die Siegelung des Verbindungsbereiches nach einem Kreuzli¬ nienraster realisiert ist.6. Pack according to one of claims 1 to 5, characterized in that at least within the tear-open area (8) the sealing of the connecting area is realized according to a cross line pattern.
7. Packung nach einem der Ansprüche 1 bis 6, gekennzeichnet durch ein Verpackungsmaterial, das 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 Polyethy- lenterephthalat und Subkomplex aus zwei oder drei Lagen aus gegebenenfalls den vorstehenden Materialien, wobei von allen benachbarten unterschiedlichen Schichten im Ver¬ packungsmaterial die jweils in der Reihe früher genannte und bei benachbarten Schichten aus gleichem oder gleich- artigem 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. 7. Package according to one of claims 1 to 6, characterized by a packaging material which 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 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 the one for adjacent layers made of the same or similar material each thinner is closer to the packaged goods, and a sub-complex is one with bond layers between the layers which are significantly stronger than the bond between the sub-complex and the other 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

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

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

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Publication number Publication date
WO1995001922A1 (en) 1995-01-19
US5582342A (en) 1996-12-10
ATE159691T1 (en) 1997-11-15
EP0659151B1 (en) 1997-10-29
DE59404470D1 (en) 1997-12-04

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