WO1980002828A1 - Process for manufacturing a laminated material and utilization thereof in packings and in the manufacturing of such packings - Google Patents

Process for manufacturing a laminated material and utilization thereof in packings and in the manufacturing of such packings Download PDF

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Publication number
WO1980002828A1
WO1980002828A1 PCT/AT1980/000018 AT8000018W WO8002828A1 WO 1980002828 A1 WO1980002828 A1 WO 1980002828A1 AT 8000018 W AT8000018 W AT 8000018W WO 8002828 A1 WO8002828 A1 WO 8002828A1
Authority
WO
WIPO (PCT)
Prior art keywords
packaging material
tear
layer
sealing layer
lines
Prior art date
Application number
PCT/AT1980/000018
Other languages
German (de)
French (fr)
Inventor
H Prohaska
Original Assignee
Teich Ag Folienwalzwerk
H Prohaska
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 Folienwalzwerk, H Prohaska filed Critical Teich Ag Folienwalzwerk
Priority to AU60507/80A priority Critical patent/AU6050780A/en
Publication of WO1980002828A1 publication Critical patent/WO1980002828A1/en
Priority to DK72781A priority patent/DK72781A/en

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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
    • 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
    • B65D75/66—Inserted or applied tearing-strings or like flexible elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/24—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for shaping or reshaping completed packages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
    • B65D75/06—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks initially folded to form tubes
    • B65D75/12—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks initially folded to form tubes with the ends of the tube closed by flattening and heat-sealing

Definitions

  • the invention relates to a flat, in particular flexible and foldable composite material which has lines of weakness at predetermined points, to this composite material itself, and to its use as packaging material in packs and in their production, the predetermined lines of weakness of the packaging material opening the Enable and / or facilitate packaging.
  • flat materials and in particular also flat composite materials, are used which have lines of weakness at predetermined points along their flat extent, along which these materials are subdivided or separated during their later use.
  • flexible and foldable composite materials are used as packaging materials for the production of packs which have tear-open elements which interact with the lines of weakness of the packaging material in such a way that opening of the package caused by the tear-open element is made possible or facilitated.
  • a shell is formed from the flat, flexible and foldable packaging material around the, for example, solid packaging, a tear strip is arranged on the inside between two lines of weakness of the packaging material.
  • the tear strip is designed so that you can grasp its beginning with your fingers and pull off the tear strip, which, for example, creates a slit-shaped opening in the package envelope through which the package is opened or at least initiated.
  • the lines of weakness on the packaging material are produced, for example, by embossing using a cutting tool.
  • embossing process is particularly delicate in the case of the relatively thin materials used for packaging purposes and requires a high level of precision in the tools used, in particular if undesired perforations of the material on these embossments are to be reliably avoided.
  • the invention is based on the object of specifying a method for producing a flat, in particular foldable, composite material which is provided with weakening lines at predetermined points, for which composite material, despite the existence of the weakening lines, a tightness is reliably ensured over its entire areal extent.
  • the invention is based on a further object of an advantageous use of the composite material according to the invention as packaging material in packs and in their manufacture, in which the weakening lines formed according to the invention are advantageously used in conjunction with tear-open elements on these packs.
  • the object on which the invention is based is achieved in the method according to the invention for the production of a particularly flexible and foldable composite material, which is characterized in that a particularly flexible and foldable carrier layer is provided with punched holes at least in places along the locations of the predetermined weakening lines and then with its flat extent a particularly flexible and foldable sealing layer - advantageously by a lamination process - is connected.
  • the punching of the carrier layer along the lines of weakness can take place simultaneously with printing on the carrier layer. In this way, the requirement that the print must be held in a certain position with respect to the intended weakening lines is easily met.
  • the sealing layer has a sealing layer in the side facing away from the carrier layer, which is advantageously formed after the sealing layer has been connected to the carrier layer.
  • the object on which the invention is based is further achieved in the use according to the invention of the composite material produced by the method according to the invention as packaging material in packs or in processes for the production thereof, the packaging material provided with weakening lines being indicated by the position and arrangement of the weakening lines and, if appropriate, the printing the special design of the pack is a pre-product of the pack production.
  • the packaging material has at least one doubling area in which it forms two layers which are connected to one another flatly with the aid of its sealing layer, such that the start of the tear-open element is in one of these Duplication areas is located and that the area occupied by the tear-open element of that packaging material layer which merges into the envelope part connected to the tear-open element, in the other packaging material layer of the duplication area, is opposite an area which is at least almost completely due to lines of weakness of the packaging material and possibly the edge of the duplication area is enclosed.
  • the tearing member and the two layers of packaging material are advantageously joined together in the doubling area in which the start of the tearing member is located.
  • the special arrangement of the lines of weakness ensures that areas connected to or attached to the tear-open element in both packaging material layers of the doubling area can be easily separated from the packaging shell when the tear-off element is removed, thus enabling or facilitating this removal.
  • the two layers of packaging material and the tear-open element e.g. a gas-tight connection through a seal, the pack is also gas-tight at this point.
  • this pack is a known per se A two-fin tubular bag pack in which one of the fins contains the start of the tearing member as a doubling area of the packaging material.
  • the use according to the invention of the composite material produced according to the invention as packaging material also takes place in the manufacture of tubular bag packs, which is characterized in that a continuous tear-open element is provided or attached to the packaging material web provided with weakening lines in the direction of its longitudinal extent, if necessary between two weakening lines, before the tubular bag pack is produced in a manner known per se.
  • the packaging material web used can advantageously have a cold adhesive coating in a manner known per se, to which a tear tape coated on one side with a cold adhesive is hot-laminated on its cold-glue-free side by means of a thermoplastic binder as the tear-open device.
  • Fig. 1 shows a schematic representation of a tubular bag pack in which the composite material according to the invention was used.
  • the flexible and foldable composite material web provided with weakening lines and used as packaging material for the production of such a tubular bag pack consists of a web-shaped carrier layer along the intended weakening lines with punched punchings as well as a sealing layer concealed against this, which has a sealing layer on the side facing away from the carrier layer is provided.
  • Advantageous designs of this flat composite material web are given in the examples.
  • the tubular bag pack is produced in a manner known per se by the fact that in the packaging machine the continuously tapering sealable packaging material web, which at predetermined points has lines of weakness or a tear tape attached to the sealing layer between two web lengths, in this longitudinal extent (Fig. 1) folded around the packaged goods, for example chocolate bars, and by forming a longitudinal sealing seam (not shown in the figure), a tubular casing 2 enclosing the packaged goods is formed, which is divided into individual packs by transverse sealing seams 3, 3 'and cutting of the packaging material at these seams.
  • transverse sealing seams 3, 3 ' fin-shaped double regions are produced at the ends of the pack, at which two layers of packaging material 4 and 5 or 4' and 5 'are connected to one another in a flat manner.
  • the packaging material layers 4, 4 '(in FIG. 1) lying on the top of the package merge into the upper part of the packaging envelope, on the inside of which a tear tape 7 is attached between two lines of weakness 6 of the packaging material. On the weakening lines, webs are provided between the punched sections.
  • the beginning 9 of the tear tape 7 is located on the underside of a tab-shaped extension 10 of the packaging material layer 4 at the doubling area of the transverse sealing seam 3 or extends in its sealing area between the packaging material layers 4 and 5.
  • the packaging material layers 4 and 5 and the Tear tape 7 connected by the sealing area and gas-tight together. Such a flat and gas-tight connection of the tear tape 7 with the lower layer of packaging material 5 is not yet known in tubular bag packs of this type.
  • FIG. 2 shows a tubular bag pack in a tell-tale in which such a special design of the tear tape beginning, which in contrast to FIG. 1 now has no tab-shaped extension, is shown schematically.
  • the start of the tear tape is located at the doubling area made of the packaging material layers 4 and 5, which is produced by a transverse sealing seam.
  • the tear tape 7 attached to the inside of the packaging envelope part or the packaging material layer 4 lies between two weakening lines 6 of the packaging material, on which one recognizes the webs 8 between the punched holes and which, however, run parallel to one another over the majority of the pack, but wedge-shaped apart within the packaging material layer 4.
  • the area delimited in the (upper) packaging material layer 4 by these weakening lines 6 is now opposite in the (lower) packaging material layer 5 by an area 11 which has a U-shaped area
  • Line of weakness 12 or the edge 13 of the doubling area is enclosed.
  • a one-sided coated, satined paper web with a basis weight of 60-100 g / m 2 is used as the packaging material web, which is simultaneously provided in a rotary printing machine with a surface decor printing and in places punched holes along the weakening lines provided on the packaging material.
  • a strip-shaped aluminum foil with a thickness of 0.008 to 0.012 mm is coated on one side with a lamination medium and laminated against the printed paper web with weakening lines. This composite is finally coated with a cold adhesive on the side facing away from the paper web.
  • a thin polyethylene tape provided with a cold adhesive coating on one side with its cold adhesive-free side is then applied as a tear tape to the packaging material web thus produced.
  • a thermoplastic binder, such as wax is hot laminated onto the cold adhesive coating of the packaging material web fed to the packaging machine.
  • the tear tape is transversely onto the packaging material web, i.e. in particular applied perpendicular to their longitudinal extent, for which purpose very complex mechanical engineering measures are required in the packaging machine, which are avoided in the use according to the invention.
  • the packaging material to be used according to this example differs from that described in example 1 in that instead of the paper web, a plastic web, in particular a cell giras web with a
  • Hotmelt coating of the packaging material is heat sealed.
  • tubular pouch packs are again produced as described with reference to FIG. 1, the sealing seams, in contrast to example 1, being carried out in the form of heat seals.
  • the composite material according to the invention provided with lines of weakness can primarily be used advantageously in the form of a flexible and foldable packaging material for the production of packs, in particular for foods, such as chocolate packs, which are provided with tear-open aids.

Abstract

A laminated material used particularly as a flexible and foldable material for manufacturing packings, and provided with weakening lines (6) making possible the use of tearing tongues, is produced from a support layer provided with weakening lines obtained by slitting This support layer is joined to a non-perforated tight layer which may be lined, if necessary, with a sealing layer. According to an advantageous utilization of said packing material in a gas tight packing, the free end of a tearing member, for example, a tearing tongue (7), is located in a double thickness section wherein the two layers (4, 5) of the material comprise regions delimited by weakening lines, which may be easily detached from the rest of the package when pulling on the tearing tongue. An advantageous utilization of such packing material with weakening lines relates to the manufacturing of bags where the tearing member is arranged along the packing web material.

Description

Hersteilungsverfahren für ein Verbundmaterial, sowie dessen Verwendung in Packungen und in Verfahren zur Herstellung derselben.Manufacturing process for a composite material, and its use in packages and in processes for producing the same.
Technisches Gebiet:Technical field:
Die Erfindung bezieht sich auf ein flächiges, insbesondere flexibles und faltbares Verbundmaterial, das an vorgegebenen Stellen Schwächungslinien aufweist, auf dieses so hergestellte Verbundmaterial selbst, sowie auf seine Verwendung als Verpackungsmaterial in Packungen und bei deren Herstellung, wobei die vorgegebenen Schwächungslinien des Verpackungsmaterials das Öffnen der Packung ermöglichen und/oder erleichtern.The invention relates to a flat, in particular flexible and foldable composite material which has lines of weakness at predetermined points, to this composite material itself, and to its use as packaging material in packs and in their production, the predetermined lines of weakness of the packaging material opening the Enable and / or facilitate packaging.
Stand der Technik ;State of the art ;
In manchen Gebieten der Technik werden flächige Materialien, und zwar insbesondere auch flächige Verbundmaterialien eingesetzt, die an vorgegebenen Stellen ihrer flächigen Ausdehnung Schwächungs1inien aufweisen, längs denen diese Materialien bei ihrer späteren Verwendung unterteilt bzw. aufgetrennt werden. So werden insbesondere flexible und faltbare Verbundmaterialien als Verpackungsmaterialien zur Herstellung von Packungen verwendet, die Aufreißorgane aufweisen, welche mit den Schwächungslinien des Verpackungsmaterials in einer Weise zusammenwirken, daß ein durch das Aufreißorgan bewirktes Öffnen der Packung ermöglicht bzw. erleichtert wird.In some areas of technology, flat materials, and in particular also flat composite materials, are used which have lines of weakness at predetermined points along their flat extent, along which these materials are subdivided or separated during their later use. In particular, flexible and foldable composite materials are used as packaging materials for the production of packs which have tear-open elements which interact with the lines of weakness of the packaging material in such a way that opening of the package caused by the tear-open element is made possible or facilitated.
Bei manchen Packungen dieser Art wird z.B. aus dem flächigen, flexiblen und faltbaren Verpackungsmaterial um das z.B. feste Verpackungsgut eine Hülle geformt, an deren Innenseite zwischen zwei Schwächungslinien des Verpackungsmaterials ein Aufreißstreifen angeordnet ist. Der Aufreißstreifen ist dabei so ausgebildet, daß man seinen Anfang mit den Fingern ergreifen und den Aufreißstreifen abziehen kann, wodurch z.B. eine schlitzförmige Öffnung in der Packungs- Hülle entsteht, durch die das Öffnen der Packung bewirkt bzw. zumindest eingeleitet wird. Die Schwächungslinien an dem Verpackungsmaterial werden dabei z.B. durch Einprägen mit Hilfe eines schneidenförmigen Werkzeuges hergestellt. Ein solches Prägeverfahren ist insbesondere bei den relativ dünnen Materialien, wie sie für Verpackungszwecke eingesetzt werden, sehr heikel und erfordert eine hohe Präzision der eingesetzten Werkzeuge, insbesondere wenn ungewünschte Perforierungen des Materials an diesen Einprägungen sicher vermieden werden sollen.In some packs of this type, a shell is formed from the flat, flexible and foldable packaging material around the, for example, solid packaging, a tear strip is arranged on the inside between two lines of weakness of the packaging material. The tear strip is designed so that you can grasp its beginning with your fingers and pull off the tear strip, which, for example, creates a slit-shaped opening in the package envelope through which the package is opened or at least initiated. The lines of weakness on the packaging material are produced, for example, by embossing using a cutting tool. Such an embossing process is particularly delicate in the case of the relatively thin materials used for packaging purposes and requires a high level of precision in the tools used, in particular if undesired perforations of the material on these embossments are to be reliably avoided.
Darstellung der Erfindung:Presentation of the invention:
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Herstellung eines flächigen insbesondere faltbaren Verbundmaterials anzugeben, das an vorgegebenen Stellen mit Schwächungslinien versehen ist, für welches Verbundmaterial trotz des Bestehens der Schwächungslinien eine Dichtheit über seine ganze flächige Ausdehnung sicher gewährleistet ist. Der Erfindung liegt als weitere Aufgabe eine vorteilhafte Verwendung des erfindungsgemäßen Verbundmaterials als Verpackungsmaterial in Packungen und bei deren Herstellung zugrunde, in der die erfindungsgemäß gebildeten Schwächungslinien in vorteilhafter Weise im Zusammenwirken mit Aufreißorganen an diesen Packungen zum Tragen kommen. Die der Erfindung zugrundliegend Aufgabe wird in dem erfindungsgemäßen Verfahren zur Herstellung eines insbesondere flexiblen und faltbaren Verbundmaterials gelöst, das dadurch gekennzeichnet ist, daß eine insbesondere flexible und faltbare Trägerschicht längs den Stellen der vorgegebenen Schwächungslinien mit zumindest streckenweisen Durchstanzungen versehen und danach über ihre flächige Ausdehnung mit einer insbesondere flexiblen und faltbaren Dichtungsschicht - vorteilhaft durch einen Kaschiervorgang - verbunden wird. Dabei kann das Durchstanzen der Trägerschicht längs den Schwächungslinien gleichzeitig mit einem Bedrucken der Trägerschicht erfolgen. Dadurch wird auf einfache Weise der Forderung, daß der Aufdruck in einer bestimmten Lage zu den vorgesehenen Schwächungslinien gehalten werden muß, nachgekommen.The invention is based on the object of specifying a method for producing a flat, in particular foldable, composite material which is provided with weakening lines at predetermined points, for which composite material, despite the existence of the weakening lines, a tightness is reliably ensured over its entire areal extent. The invention is based on a further object of an advantageous use of the composite material according to the invention as packaging material in packs and in their manufacture, in which the weakening lines formed according to the invention are advantageously used in conjunction with tear-open elements on these packs. The object on which the invention is based is achieved in the method according to the invention for the production of a particularly flexible and foldable composite material, which is characterized in that a particularly flexible and foldable carrier layer is provided with punched holes at least in places along the locations of the predetermined weakening lines and then with its flat extent a particularly flexible and foldable sealing layer - advantageously by a lamination process - is connected. The punching of the carrier layer along the lines of weakness can take place simultaneously with printing on the carrier layer. In this way, the requirement that the print must be held in a certain position with respect to the intended weakening lines is easily met.
Gemäß einer vorteilhaften Ausgestaltung des erfindungsgemäßen Verfahrens weist die Dichtungsschicht in der von der Trägerschicht abgewandten Seite eine Siegelungsschicht auf, die vorteilhaft nach Verbindung der Dichtungsschicht mit der Trägerschicht gebildet wird.According to an advantageous embodiment of the method according to the invention, the sealing layer has a sealing layer in the side facing away from the carrier layer, which is advantageously formed after the sealing layer has been connected to the carrier layer.
Die der Erfindung zugrundeliegende Aufgabe wird ferner in der erfindungsgemäßen Verwendung des durch das erfindungsgemäße Verfahren hergestellten Verbundmaterials als Verpackungsmaterial in Packungen bzw. in Verfahren zu deren Herstellung gelöst, wobei das mit Schwächungslinien versehene Verpackungsmaterial ein durch die Lage und Anordnung der Schwächungslinien und gegebenenfalls des Aufdruckes an die besondere Ausgestaltung der Packung angepaßtes Vorprodukt der Packungsherstellung ist. Diese Verwendung des gemäß der Erfindung hergestellten Verbundmaterials als Verpackungsmaterial erfolgt in Packungen, die dadurch gekennzeichnet sind, daß das Verpackungsmaterial zumindest einen Dopplungsbereich aufweist, in dem es zwei mit Hilfe seiner Siegelungsschicht flächig miteinander verbundene Lagen bildet, daß der Anfang des Aufreißorgans sich in einem dieser Dopplungsbereiche befindet und daß dem vom Aufreißorgan eingenommenen Bereich jener Verpackungsmaterial-Lage, die in den mit dem Aufreißorgan verbundenen Hüllenteil übergeht, in der anderen Verpackungsmaterial-Lage des Dopplungsbereichs ein Bereich gegenüberliegt, der durch Schwächungslinien des Verpackungsmaterials und gegebenenfalls den Rand des Dopplungsbereichs zumindest nahezu vollständig umschlossen ist. Dabei sind vorteilhaft in dem Dopplungsbereich, in dem sich der Anfang des Aufreißorgans befindet, das Aufreißorgan und die beiden Verpackungsmaterial-Lagen flächig miteinander verbunden.The object on which the invention is based is further achieved in the use according to the invention of the composite material produced by the method according to the invention as packaging material in packs or in processes for the production thereof, the packaging material provided with weakening lines being indicated by the position and arrangement of the weakening lines and, if appropriate, the printing the special design of the pack is a pre-product of the pack production. This use of the composite material produced according to the invention as packaging material takes place in packs which are characterized in that the packaging material has at least one doubling area in which it forms two layers which are connected to one another flatly with the aid of its sealing layer, such that the start of the tear-open element is in one of these Duplication areas is located and that the area occupied by the tear-open element of that packaging material layer which merges into the envelope part connected to the tear-open element, in the other packaging material layer of the duplication area, is opposite an area which is at least almost completely due to lines of weakness of the packaging material and possibly the edge of the duplication area is enclosed. The tearing member and the two layers of packaging material are advantageously joined together in the doubling area in which the start of the tearing member is located.
Durch die besondere Anordnung der Schwächungslinien wird erreicht, daß mit dem Aufreißorgananfang verbundene oder an ihm anliegende Bereiche in beiden VerpackungsmaterialLagen des Dopplungsbereichs sich beim Abziehen des Aufreißorgans von der Packungs-Hülle leicht abtrennen lassen und so dieses Abziehen ermöglichen bzw. erleichtern. Besteht nun zwiwchen den beiden Verpackungsmaterial-Lagen und dem Aufreißorgan - z.B. durch eine Siegelung eine gasdichte Verbindung, so ist die Packung auch an dieser Stelle gasdicht.The special arrangement of the lines of weakness ensures that areas connected to or attached to the tear-open element in both packaging material layers of the doubling area can be easily separated from the packaging shell when the tear-off element is removed, thus enabling or facilitating this removal. Now exists between the two layers of packaging material and the tear-open element - e.g. a gas-tight connection through a seal, the pack is also gas-tight at this point.
In einer vorteilhaften Variante der erfindungsgemäßen Verwendung des erfindungsgemäßen Verbundmaterials beiIn an advantageous variant of the inventive use of the composite material according to the invention
Packungen ist diese Packung eine in an sich bekannter Weise mit zwei Flossen versehene Schlauchbeutelpackung, bei der eine der Flossen als Dopplungsbereich des Verpackungsmaterials den Anfang des Aufreißorgans enthält.Packs, this pack is a known per se A two-fin tubular bag pack in which one of the fins contains the start of the tearing member as a doubling area of the packaging material.
Die erfindungsgemäße Verwendung des gemäß der Erfindung hergestellten Verbundmaterials als Verpackungsmaterial erfolgt ferner bei der Herstellung von Schlauchbeutelpackungen, die dadurch gekennzeichnet ist, daß auf die eingesetzte mit Schwächungslinien versehene Verpackungsmaterialbahn in Richtung ihrer Längserstreckung gegebenenfalls zwischen zwei Schwächungslinien - ein durchlaufendes Aufreißorgan vorgesehen oder angebracht wird, bevor in an sich bekannter Weise die Schlauchbeutelpackung hergestellt wird. Dabei kann in vorteilhafter Weise die eingesetzte Verpackungsmaterialbahn in an sich bekannter Weise eine Kaltkleberbeschichtung aufweisen, an die als Aufreißorgan ein einseitig mit einem Kaltkleber beschichtetes Aufreißband an seiner kaltkleberfreien Seite mittels eines thermoplastischen Bindemittels heiß anlaminiert wird.The use according to the invention of the composite material produced according to the invention as packaging material also takes place in the manufacture of tubular bag packs, which is characterized in that a continuous tear-open element is provided or attached to the packaging material web provided with weakening lines in the direction of its longitudinal extent, if necessary between two weakening lines, before the tubular bag pack is produced in a manner known per se. The packaging material web used can advantageously have a cold adhesive coating in a manner known per se, to which a tear tape coated on one side with a cold adhesive is hot-laminated on its cold-glue-free side by means of a thermoplastic binder as the tear-open device.
Kurze Beschreibung der Zeichnungen:Brief description of the drawings:
Die Fig. 1 zeigt in schematischer Darstellung eine Schlauchbeutelpackung, in der das erfindungsgemäße Verbundmaterial verwendet wurde. Die zur Herstellung einer solchen Schlauchbeutelpackung als Verpackungsmaterial dienende mit Schwächungslinien versehene, flexible und faltbare Verbundmaterialbahn besteht aus einer längs den vorgesehenen Schwächungslinien mit streckenweisen Durchstanzungen versehenen bahnenformigen Trägerschicht, sowie aus einer gegen diese kaschierte Dichtungsschicht, die an der von der Trägerschicht abgewandten Seite mit einer Siegelungsschicht versehen ist. Vorteilhafte Ausführungen dieser flächigen Verbundmaterialbahn sind in den Beispielen angegeben.Fig. 1 shows a schematic representation of a tubular bag pack in which the composite material according to the invention was used. The flexible and foldable composite material web provided with weakening lines and used as packaging material for the production of such a tubular bag pack consists of a web-shaped carrier layer along the intended weakening lines with punched punchings as well as a sealing layer concealed against this, which has a sealing layer on the side facing away from the carrier layer is provided. Advantageous designs of this flat composite material web are given in the examples.
Die Herstellung der Schlauchbeutelpackung erfolgt in an sich bekannter Weise dadurch, daß in der Verpackungsmaschine die kontinuierlich zulaufende siegelungsfähige Verpackungsmaterialbahn, die an vorgegebenen Stellen Schwächungslinien bzw. ein zwischen zwei in Bahn-Längserstreckung verlaufendes an der Siegelungsschicht angebrachtes Aufreißband aufweist, in dieser Längserstreckung (Fig. 1) um das Verpackungsgut, z.B. Schokoladeriegel, gefaltet und durch Bildung einer (in der Figur nicht dargestellten) Längssiegelungsnaht eine das Verpackungsgut umschließende Schlauchhülle 2 gebildet, die durch Quersiegelungsnähte 3, 3' und Durchtrennung des Verpackungsmaterials an diesen Nähten in Einzelpackungen unterteilt wird. Durch diese Quersiegelungsnähte 3, 3' werden an den Packungsenden flossenförmige Dopp-lungsbereiche hergestellt, an denen jeweils zwei Verpackungsmaterial-Lagen 4 und 5 bzw. 4' und 5' flächig miteinander verbunden sind. Die (in Fig. 1) an der Packungsoberseite zu liegen kommenden Verpackungsmaterial-Lagen 4, 4' gehen dabei in den oberen Teil der Packungshülle über, an deren Innenseite zwischen zwei Schwächungslinien 6 des Verpackungsmaterials ein Aufreißband 7 angebracht ist. An den Schwächungslinien sind Stege zwischen den streckenweisen Durchstanzungen vorgesehen. Der Anfang 9 des Aufreißbandes 7 befindet sich an der Unterseite eines lappenförmigen Fortsatzes 10 der Verpackungsmaterial-Lage 4 am Dopplungsbereich der Quersiegelungsnaht 3 bzw. verläuft in deren Siegelungsbereich zwischen den Verpackungsmaterial-Lagen 4 und 5. Dabei sind die Verpackungsmaterial-Lagen 4 und 5 und das Aufreißband 7 durch die Siegelung flächig und gasdicht miteinander verbunden. Eine solche flächige und gasdichte Verbindung des Aufreißbandes 7 mit der unteren Verpackungsmaterial-Lage 5 ist bei Schlauchbeutelpackungen dieser Art bis jetzt noch nicht bekannt.The tubular bag pack is produced in a manner known per se by the fact that in the packaging machine the continuously tapering sealable packaging material web, which at predetermined points has lines of weakness or a tear tape attached to the sealing layer between two web lengths, in this longitudinal extent (Fig. 1) folded around the packaged goods, for example chocolate bars, and by forming a longitudinal sealing seam (not shown in the figure), a tubular casing 2 enclosing the packaged goods is formed, which is divided into individual packs by transverse sealing seams 3, 3 'and cutting of the packaging material at these seams. By means of these transverse sealing seams 3, 3 ', fin-shaped double regions are produced at the ends of the pack, at which two layers of packaging material 4 and 5 or 4' and 5 'are connected to one another in a flat manner. The packaging material layers 4, 4 '(in FIG. 1) lying on the top of the package merge into the upper part of the packaging envelope, on the inside of which a tear tape 7 is attached between two lines of weakness 6 of the packaging material. On the weakening lines, webs are provided between the punched sections. The beginning 9 of the tear tape 7 is located on the underside of a tab-shaped extension 10 of the packaging material layer 4 at the doubling area of the transverse sealing seam 3 or extends in its sealing area between the packaging material layers 4 and 5. The packaging material layers 4 and 5 and the Tear tape 7 connected by the sealing area and gas-tight together. Such a flat and gas-tight connection of the tear tape 7 with the lower layer of packaging material 5 is not yet known in tubular bag packs of this type.
Zur Erleichterung des Einreißens ist der Aufreißbandanfang nun in einer besonderen Weise ausgebildet. Fig.2 zeigt eine Schlauchbeutelpackung in einer Telldarstellung in der eine solche besondere Ausbildung des Aufreißbandanfanges, der im Gegensatz zu Fig.1 nun keinen lappenförmigen Fortsatz aufweist, schematisch dargestellt ist.To facilitate tearing, the beginning of the tear tape is now designed in a special way. 2 shows a tubular bag pack in a tell-tale in which such a special design of the tear tape beginning, which in contrast to FIG. 1 now has no tab-shaped extension, is shown schematically.
Der Anfang des Aufreißbandes befindet sich an dem durch eine Quersiegelungsnaht hergestellten Dopplungsbereich aus den Verpackungsmaterial-Lagen 4 und 5. Das an der Innenseite des (in der Fig.2 oberen) Packungshüllenteiles bzw. der Verpackungsmaterial-Lage 4 angebrachte Aufreißband 7 liegt zwischen zwei Schwächungslinien 6 des Verpackungsmaterials, an denen man die Stege 8 zwischen den Durchstanzungen erkennt und die über den größten Teil der Packung parallel zueinander, innerhalb der Verpackungsmaterial-Lage 4 j edoch keilförmig auseinander verlaufen. Dem in der (oberen) Verpackungsmaterial-Lage 4 durch diese Schwächungslinien 6 begrenzten Bereich liegt nun in der (unteren) Verpackungsmaterial-Lage 5 ein Bereich 11 gegenüber, der durch eine U-förmig verlaufendeThe start of the tear tape is located at the doubling area made of the packaging material layers 4 and 5, which is produced by a transverse sealing seam. The tear tape 7 attached to the inside of the packaging envelope part or the packaging material layer 4 (shown in FIG. 2) lies between two weakening lines 6 of the packaging material, on which one recognizes the webs 8 between the punched holes and which, however, run parallel to one another over the majority of the pack, but wedge-shaped apart within the packaging material layer 4. The area delimited in the (upper) packaging material layer 4 by these weakening lines 6 is now opposite in the (lower) packaging material layer 5 by an area 11 which has a U-shaped area
Schwächungslinie 12 bzw. den Rand 13 des Dopplungsbereiches umschlossen ist.Line of weakness 12 or the edge 13 of the doubling area is enclosed.
Zum Einreißen des Aufreißbandes faßt man im Bereich 11 des durch die beiden Lagen 4 und 5 gebildeten Dopplungsbereichs den Aufreißbandanfang an und zieht ihn in Richtung des Pfeiles 14 nach oben. Dabei wird der mit dem Anfang 9 des Aufreißbandes 7 flächig und gasdicht verbundene Bereich 11 der Verpackungsmaterial-Lage 5 an der U-förmig verlaufenden Schwächungslinie 12 abgetrennt und die zu beiden Seiten des Aufreißbandes liegenden Schwächungslinien 6 vom Dopplungsbereichs-Rand 13 aus eingerissen. Die Packung wird dann wie üblich durch weiteres Abziehen des Aufreißbandes geöffnet.To tear the tear tape, grasp the start of the tear tape in area 11 of the doubling area formed by the two layers 4 and 5 and pull it up in the direction of arrow 14. This is connected to the beginning 9 of the tear tape 7 flat and gas-tight Area 11 of the packaging material layer 5 is cut off at the U-shaped weakening line 12 and the weakening lines 6 lying on both sides of the tear tape are torn from the doubling area edge 13. The package is then opened as usual by further pulling off the tear tape.
Bester Weg zur A.usführung der Erfindung :Best way to carry out the invention:
Nachstehend werden zwei vorteilhafte Beispiele von der erfindungsgemäßen Verwendung des erfindungsgemäßen Verbundmaterials bei Schlauchbeutelpackungen gegeben.Two advantageous examples of the use according to the invention of the composite material according to the invention in tubular bag packs are given below.
Beispiel 1:Example 1:
Als Verpackungsmaterialbahn wird eine einseitig gestrichene, satinierte Papierbahn eines Flächengewichts von 60 - 100 g/m2 eingesetzt, die in einer Rotationsdruckmaschine gleichzeitig mit einem Oberflachendekordruck und streckenweisen Durchstanzungen längs der am Verpackungsmaterial vorgesehenen Schwächungslinien versehen wird. Eine bandförmige Aluminiumfolie einer Dicke von 0,008 bis 0,012 mm wird darauf einseitig mit einem Kaschiermedium beschichtet und gegen die bedruckte und Schwächungslinien aufweisende Papierbahn laminiert. Dieser Verbund wird schließlich an der von der Papierbahn abgewandten Seite mit einem Kaltkleber beschichtet.A one-sided coated, satined paper web with a basis weight of 60-100 g / m 2 is used as the packaging material web, which is simultaneously provided in a rotary printing machine with a surface decor printing and in places punched holes along the weakening lines provided on the packaging material. A strip-shaped aluminum foil with a thickness of 0.008 to 0.012 mm is coated on one side with a lamination medium and laminated against the printed paper web with weakening lines. This composite is finally coated with a cold adhesive on the side facing away from the paper web.
Auf die so hergestellte Verpackungsmaterialbahn wird nun als Aufreißband ein dünnes einseitig mit einer Kaltkleberbeschichtung versehenes Polyäthylenband mit seiner kaltkleberfreien Seite aufgebracht. Dies erfolgt beispielsweise dadurch, daß bei der Herstellung von Schlauchbeutelpackungen das Polyäthylenband in Verpackungsmaterialband Längsrichtung mittels eines thermoplastischen Bindemittels, wie z.B. Wachs, auf die Kaltkleberbeschichtung der der Verpackungsmaschine zugeführten Verpackungsmaterialbahn heiß anlaminiert wird.A thin polyethylene tape provided with a cold adhesive coating on one side with its cold adhesive-free side is then applied as a tear tape to the packaging material web thus produced. This takes place, for example, in that the polyethylene tape in the packaging material tape is used in the manufacture of tubular bag packs In the longitudinal direction, a thermoplastic binder, such as wax, is hot laminated onto the cold adhesive coating of the packaging material web fed to the packaging machine.
Im Gegensatz dazu wird bei der Herstellung von bekannten Schlauchbeutelpackungen das Aufreißband auf die Verpackungsmaterialbahn quer, d.h. insbesondere senkrecht zu deren Längserstreckung aufgebracht, wozu in der Verpackungsmaschine sehr aufwendige maschinen-technische Maßnahmen erforderlich sind, die bei der erfindungsgemäßen Verwendung vermieden werden.In contrast, in the manufacture of known tubular bag packs, the tear tape is transversely onto the packaging material web, i.e. in particular applied perpendicular to their longitudinal extent, for which purpose very complex mechanical engineering measures are required in the packaging machine, which are avoided in the use according to the invention.
Die weiteren Schritte zur Herstellung der Schlauchbeute1packungen erfolgen dann wie anhand von Fig.1 beschrieben, wobei die auszuführenden Siegelungsnähte durch Kaltsiegelungen realisiert werden.The further steps for the production of the hosepipe packs then take place as described with reference to FIG. 1, the sealing seams to be carried out being realized by cold sealing.
Beispiel 2:Example 2:
Das gemäß diesem Beispiel einzusetzende Verpackungsmaterial unterscheidet sich von dem in Beispiel 1 beschriebenen dadurch, daß statt der Papierbahn eine KunstStoffbahn, insbesondere eine Zellgirasbahn mit einemThe packaging material to be used according to this example differs from that described in example 1 in that instead of the paper web, a plastic web, in particular a cell giras web with a
Flächengewicht von 28 - 40 g/m2, und statt der Kaltkleberbeschichtung eine Schmelzkleberbeschichtung auf Polyäthylenbasis eingesetzt wird. Als Aufreißband dient eine beiderseits mit einer Polyäthylen-Schmelzkleberbeschichtung versehenes Polyesterband, das auf dieSurface weight of 28 - 40 g / m 2 , and a hot melt adhesive coating based on polyethylene is used instead of the cold adhesive coating. As a tear tape is used on both sides with a polyethylene hot melt adhesive coating provided on the
Schmelzkleberbeschichtung des Verpackungsmaterials heiß aufgesiegelt wird.Hotmelt coating of the packaging material is heat sealed.
Die Herstellung der Schlauchbeutelpackungen erfolgt wieder so wie anhand von Fig.1 beschrieben, wobei die Siegelungsnähte im Gegensatz zu Beispiel 1 in Form von Heißsiegelungen ausgeführt werden. Gewerbliche Verwertbarkeit:The tubular pouch packs are again produced as described with reference to FIG. 1, the sealing seams, in contrast to example 1, being carried out in the form of heat seals. Commercial usability:
Das erfindungsgemäße mit Schwächungslinien versehene Verbundmaterial kann in erster Linie vorteilhaft in Form eines flexiblen und faltbaren Verpackungsmaterials zur Herstellung von Packungen insbesondere für Lebensmittel, wie Schokoladepackungen, verwendet werden, welche mit Aufreißhilfen versehen sind. The composite material according to the invention provided with lines of weakness can primarily be used advantageously in the form of a flexible and foldable packaging material for the production of packs, in particular for foods, such as chocolate packs, which are provided with tear-open aids.

Claims

PATENTANSPRÜCHE: PATENT CLAIMS:
1. Verfahren zur Herstellung eines flächigen Verbundmaterials, das an vorgegebenen Stellen mit Schwächungslinien versehen ist, dadurch gekennzeichnet, daß eine Trägerschicht längs den Stellen der vorgegebenen1. A method for producing a flat composite material, which is provided at predetermined points with lines of weakness, characterized in that a carrier layer along the points of the predetermined
Schwächungslinien mit zumindest streckenweisen Durchstanzungen versehen und danach über ihre flächige Ausdehnung mit einer undurchbrochenen Dichtungsschicht verbunden wird.Provide lines of weakness with at least stretches of punching and then connect them to an unbroken sealing layer over their areal extension.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß flexible und faltbare Träger- und Dichtungsschichten eingesetzt werden.2. The method according to claim 1, characterized in that flexible and foldable carrier and sealing layers are used.
3; Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Durchstanzen der Trägerschicht längs den Schwächungslinien gleichzeitig mit einem Bedrucken der Trägerschicht erfolgt.3; Method according to claim 1 or 2, characterized in that the punching of the carrier layer along the lines of weakness takes place simultaneously with printing on the carrier layer.
4, Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Verbinden der Dichtungsschicht mit der Trägerschicht durch einen Kaschiervorgang erfolgt.4, Method according to one of claims 1 to 3, characterized in that the connection of the sealing layer to the carrier layer is carried out by a lamination process.
5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Dichtungsschicht an der von der Trägerschicht abgewandten Seite eine Siegelungsschicht aufweist.5. The method according to any one of claims 1 to 4, characterized in that the sealing layer has a sealing layer on the side facing away from the carrier layer.
6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß die Siegelungsschicht an der Dichtungsschicht nach deren Verbindung mit der Trägerschicht gebildet wird. 6. The method according to claim 5, characterized in that the sealing layer is formed on the sealing layer after its connection to the carrier layer.
7. Flächiges Verbundmaterial, dadurch gekennzeichnet, daß es nach dem Verfahren nach einem der Ansprüche 1 bis 6 hergestellt ist.7. Flat composite material, characterized in that it is produced by the method according to one of claims 1 to 6.
8. Verwendung des Verbundmaterials nach Anspruch 6, dadurch gekennzeichnet, daß es als Verpackungsmaterial für Packungen sowie bei deren Herstellung verwendet wird.8. Use of the composite material according to claim 6, characterized in that it is used as packaging material for packs and in their manufacture.
9. Verwendung nach Anspruch 8 in Packungen mit einer ein Aufreißorgan aufweisenden Hülle, dadurch gekennzeichnet, daß das Verpackungsmaterial zumindest einen Dopplungsbereich aufweist, in dem es zwei mit Hilfe seiner Siegelungsschicht flächig miteinander verbundenen Lagen (4, 5) bildet, daß der Anfang (9) des Aufreißorgans (7) sich in einem dieser Dopplungsbereiche befindet und daß dem vom Aufreißorgan (7) eingenommenen Bereich jener Verpackungsmaterial-Lage (4), die in den mit dem Aufreißorgan (7) verbundenen Hüllenteil übergeht, in der anderen Verpackungsmaterial-Lage (5) des Dσpplungsbereiches ein Bereich ( 11) gegenüberl iegt , der durch Schwächungslinien (12) des Verpackungsmaterials und gegebnnenfalls den Rand (13) des Dopplungsbereiches zumindest nahezu vollständig umschlossen ist .9. Use according to claim 8 in packs with a cover having a tear-open element, characterized in that the packaging material has at least one doubling area in which it forms two layers (4, 5) which are connected to one another with the aid of its sealing layer, that the beginning (9 ) of the tear-open member (7) is located in one of these doubling areas and that the area occupied by the tear-open member (7) of that packaging material layer (4) which merges into the envelope part connected to the tear-open element (7), in the other packaging material layer ( 5) of the doubling area is an area (11) which is at least almost completely enclosed by weakening lines (12) of the packaging material and optionally the edge (13) of the doubling area.
10. Verwendung nach Anspruch 9, dadurch gekennzeichnet, daß in dem Dopplungsbereich, in dem sich der Anfang(9) des Aufreißorgans ( 7 ) befindet , das Aufreißorgan(7) und die beiden Verpackungsmaterial-Lagen(4, 5) flächig miteinander verbunden sind. 10. Use according to claim 9, characterized in that in the doubling area in which the beginning (9) of the tear-open member (7) is located, the tear-open member (7) and the two layers of packaging material (4, 5) are connected to one another in a flat manner .
11. Verwendung nach Anspruch 9 oder 10, dadurch gekennzeichnet, daß die Packung eine in an sich bekannter Weise mit zwei Flossen (3,3') versehene Schlauchbeutelpackung ist, bei der eine der Flossen (3) als Dopplungsbereich des Verpackungsmaterials den Anfang (9) des Aufreißorgans (7) enthält.11. Use according to claim 9 or 10, characterized in that the pack is a tubular bag pack provided in a manner known per se with two fins (3, 3 '), in which one of the fins (3) serves as the doubling area of the packaging material (9 ) of the tearing member (7).
12. Verwendung nach Anspruch 8 in einem Verfahren zur Herstellung von Packungen mit einer ein Aufreißorgan aufweisenden Hülle, dadurch gekennzeichnet, daß auf die eingesetzte mit Schwächungslinien versehene, siegelungsfähige Verpackungsmaterialbahn in Richtung ihrer Längserstreckung (1) - gegebenenfalls zwischen zwei Schwächungslinien (6) - ein durchlaufendes Au£reißorgan vorgesehen oder angebracht wird, bevor aus ihr in an sich bekannter Weise die Schlauchbeutelpackung hergestellt wird.12. Use according to claim 8 in a method for producing packs with a tear-open casing, characterized in that on the inserted with weakening lines provided with sealable packaging material web in the direction of its longitudinal extent (1) - optionally between two weakening lines (6) - a continuous tear-open device is provided or attached before the tubular bag pack is produced from it in a manner known per se.
13. Verwendung nach Anspruch 12, dadurch gekennzeichnet, daß die eingesetzte Verpackungsmaterialbahn als Siegelungsschicht eine Kaltkleberbeschichtung aufweist, an die als Aufreißorgan ein einseitig mit einem Kaltkleber beschichtetes Aufreißband (7) an seiner kaltkleberfreien Seite mittels eines thermonlastischen Bindemittels heiß anlaminiert wird. 13. Use according to claim 12, characterized in that the packaging material web used has a cold adhesive coating as the sealing layer, to which a tear tape coated on one side with a cold adhesive (7) is hot-laminated on its cold adhesive-free side by means of a thermo-elastic binder as a tear-open member.
PCT/AT1980/000018 1979-06-19 1980-06-19 Process for manufacturing a laminated material and utilization thereof in packings and in the manufacturing of such packings WO1980002828A1 (en)

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AU60507/80A AU6050780A (en) 1979-06-19 1980-06-19 Process for manufacturing a laminated material and utilization thereof in packings and in the manufacturing of such packings
DK72781A DK72781A (en) 1979-06-19 1981-02-18 PROCEDURE FOR THE MANUFACTURE OF A LAMINATED MATERIAL AND THE USE OF IT IN PACKAGING AND PROCEDURE FOR THE MANUFACTURING OF SUCH

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AT4310/79 1979-06-19
AT0431079A AT368467B (en) 1979-06-19 1979-06-19 PACKAGING SLEEVE FOR APPROXIMATELY BRICK OR TABLED LOWERED OR DIVISIBLE ITEMS

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PCT/AT1980/000017 WO1980002827A1 (en) 1979-06-19 1980-06-19 Packing and manufacturing process thereof

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EP0024271A1 (en) 1981-02-25
WO1980002827A1 (en) 1980-12-24
DK72781A (en) 1981-02-18
EP0030946A1 (en) 1981-07-01
AT368467B (en) 1982-10-11
ATA431079A (en) 1982-02-15
DE3008807A1 (en) 1981-06-11
EP0030945B1 (en) 1984-12-12
JPS56500770A (en) 1981-06-11
DK72681A (en) 1981-02-18
DE3008807C2 (en) 1990-08-02
DE3069788D1 (en) 1985-01-24
EP0030945A1 (en) 1981-07-01
JPS56500771A (en) 1981-06-11

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