EP0615919B1 - Reclosable container made of plastic foil - Google Patents

Reclosable container made of plastic foil Download PDF

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Publication number
EP0615919B1
EP0615919B1 EP94102948A EP94102948A EP0615919B1 EP 0615919 B1 EP0615919 B1 EP 0615919B1 EP 94102948 A EP94102948 A EP 94102948A EP 94102948 A EP94102948 A EP 94102948A EP 0615919 B1 EP0615919 B1 EP 0615919B1
Authority
EP
European Patent Office
Prior art keywords
wall
top wall
tab
pack according
plastic foil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP94102948A
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German (de)
French (fr)
Other versions
EP0615919A1 (en
Inventor
Heinz Focke
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.)
Focke and Co GmbH and Co KG
Original Assignee
Focke and Co GmbH and Co KG
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Filing date
Publication date
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Publication of EP0615919A1 publication Critical patent/EP0615919A1/en
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Publication of EP0615919B1 publication Critical patent/EP0615919B1/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
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/02—Wrappers or flexible covers
    • B65D65/10—Wrappers or flexible covers rectangular
    • B65D65/12—Wrappers or flexible covers rectangular formed with crease lines to facilitate folding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/64—Lids
    • B65D5/66—Hinged lids
    • B65D5/6602—Hinged lids formed by folding one or more extensions hinged to the upper edge of a tubular container body
    • 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

Definitions

  • the invention relates to a reclosable packaging made of plastic film, in particular for holding paper handkerchiefs, with a front wall, a rear wall, and with foldable side tabs which can be folded for opening and closing, the side tabs being divided into tab parts by folding along predetermined fold lines.
  • Plastic films are one of the most commonly used packaging materials.
  • plastic films are used for rectangular soft packs, which serve to hold a stack of folded paper handkerchiefs (DE-U-91 09 814.9).
  • cigarette packs are also known which consist of a multilayer (laminated) plastic film.
  • a property of plastic films that is disadvantageous for packaging technology is that, due to the material-related restoring forces in plastic films, constant recurring fold lines formed by merely folding cannot be achieved.
  • these are particularly necessary in the case of packagings which have folding tabs, in particular closing tabs, for multiple opening and reclosing of the pack (DE-U-91 09 814.9). With such resealable film packaging, it is necessary that folding tabs are reliably and correctly folded along predetermined folding lines.
  • the invention is therefore based on the object of preparing or treating packaging material with permanent restoring forces, in particular plastic film, in such a way that fold lines are formed repeatedly without external intervention.
  • the packaging according to the invention is characterized in that strip-shaped areas of the flap parts lie against one another on both sides of the fold lines with the same side of the plastic film and are permanently connected to one another by thermal sealing or adhesive bonding.
  • the plastic film is therefore treated in the region of the fold line by permanent deformation in such a way that a stable fold line is formed which is not influenced by restoring forces.
  • strip-shaped regions of the film which run directly adjacent to the fold line are preferably connected to one another, specifically by thermal sealing, by adhesive bonding or in some other way.
  • a resulting sealing seam is stable for recurring folds, especially in connection with opening and reclosing the packaging.
  • the sealing seam or the folding line defined by this has certain restoring forces in the direction of the folding position. From DE-A-2 029 976 a carrier bag formed from a plastic film is known, which has cross-sections M-shaped side folds.
  • the inside of the film is provided with a reinforcement made of a glued-on paper strip.
  • This reinforcement is also foldable according to the side fold of the carrier bag. The return of the film to the folded position is not or not significantly improved by this reinforcement, since an active restoring force is not generated by the paper strip.
  • the film treated in the manner according to the invention is particularly suitable for reclosable, rectangular packaging in which an upper wall serves as a closing flap and is connected to narrow side walls of the pack by foldable side flaps.
  • an upper wall serves as a closing flap and is connected to narrow side walls of the pack by foldable side flaps.
  • the closing flap or the top wall is closed, the side flaps are precisely folded in between the top wall and the end face of the package.
  • a cuboid packaging 10 is shown in the drawings with front wall 11, rear wall 12, narrow side walls 13, 14 and end walls, ie bottom wall 15 and top wall 16.
  • the latter is integrally connected to the rear wall 12 and extends in the same plane as the latter when the packaging is opened according to FIG. 1.
  • a free end of the top wall 16 is designed as a tab 17. When the packaging is closed, this extends down to the front wall 11.
  • the top wall 16 is further connected to the side walls 13, 14, in particular via approximately triangular side tabs 18, 19. These run to the rear corner points 20, 21, in which the top wall 16, rear wall 12, side wall 13 and Butt top wall 16, rear wall 12, side wall 14.
  • the packaging consists of a plastic film. This is not necessarily provided with pre-made fold lines. Rather, the latter arise only through the use of the packaging and are specifically provided at certain points in individual cases.
  • the transitions between the individual walls 11. 16 or tabs 18, 19 are therefore not sharply defined and are only shown as (crease) lines in the figures.
  • the upright edge 22 between the front wall 11 and the side wall 13 is not an edge in the sense of a sharp bend, but rather a logical separation between the side wall and the front wall. The same applies to the other "edges" that can be seen in the figures, unless otherwise shown below.
  • FIG. 2 to 5 show the package 10 once in the open position, analogously to FIG. 1, and secondly in an intermediate closed position, in particular FIG. 4.
  • the upper wall 16 is angled slightly forwards from the plane of the rear wall 12 .
  • the tab 17 is further angled further, an enlarged illustration of this is shown in FIG. 6.
  • the side tabs are stretched.
  • the side flaps 18, 19 are folded inward via an intermediate folding position according to FIGS. 4 and 5 or 6 into a closed position in which the side flaps 18, 19 are folded below the top wall 16.
  • the tab 17 extends in the region of the front wall 11 and can be detachably connected to it, for example by an adhesive tape.
  • Fold lines 23, 24 are specified at the transition from the side flaps 18, 19 to the side walls 13, 14, likewise fold lines 25, 26 corresponding to the transition from the side flaps 18, 19 to the top wall 16.
  • Fold lines 27, 28 run in from the corner points 20, 21 Diagonal direction for dividing the side tabs 18, 19 into a tab part 29, 30 connected to the top wall 16 and a tab part 31, 32 connected to the side wall 13, 14.
  • the triangular-shaped side tabs 18, 19 here should have a precise folding pattern in the closed position even after the packaging has been opened and closed several times.
  • at least the fold lines 27 and 28 are designed in a special way, as shown in detail in FIG. 7.
  • the side flap parts overlap part 29 and flap part 31 or 30 and 32) are permanently connected to one another in the region of the fold line 27 or 28 to form a seam 33 of a defined width.
  • the packaging is preferably made of a thermoplastic material.
  • the seam 33 is then formed by applying pressure and heat as a sealed or embossed seam with a width of approximately 0.5 mm.
  • the packaging is closed by placing the top wall 16 or tab 17 against the front wall 11, the fold lines 27, 28 or the seam 33 automatically achieve a clean inward folding of the side flaps 18, 19. There are no disruptive protrusions to the outside and no unwanted additional ones Wrinkles.
  • the package 10 remains functionally and visually appealing in this area even after repeated opening and closing.
  • the seam 33 described can alternatively or additionally be provided in the region of the fold lines 23, 26, just as these themselves are alternatively or additionally arranged to the fold lines 27, 28.
  • a blank provided to form the packaging 10 is formed in one piece and is not shown here.
  • the tab 17 has a free edge 35 which is approximately circularly convexly curved.
  • a free edge 36 of the front wall 11 is concavely curved.
  • the edges 34, 35, 36 flow into one another in the manner of a sine line.
  • the resulting edge line (sine line) has no kinks or jumps.
  • the dimensionally stable fold line or embossed seam shown in FIG. 7 can also be produced by gluing the strip-shaped regions.
  • other shape-changing treatments of the film in the area of fold lines are also possible, for example local stretching of the films to create a strip-like material reduction in the area of the fold line.
  • the fold line described and shown in FIG. 7 can also be applied to other shapes and types of packaging where stabilized, reliably formed fold lines are required.

Abstract

The invention relates to a reclosable, cuboid container made of plastic film, in particular for receiving paper handkerchiefs, having a front, back, narrow sides, top and bottom, the top adjoining the back integrally and being pivotable in the direction of the front to close the package, and the top being connected to the sides in each case by side flaps which can be folded in. According to the invention, provision is made for the side flaps (18) to have in each case at least one predetermined or prefolded fold line (23, 25, 27) starting in each case from a corner point (20) between the back, top (16) and side. <IMAGE>

Description

Die Erfindung betrifft eine wiederverschließbare Verpackung aus Kunststoffolie, insbesondere zur Aufnahme von Papier-Taschentüchern, mit Vorderwand, Rückwand, und mit faltbaren Seitenlappen, die zum Öffnen und Schließen faltbar sind, wobei die Seitenlappen durch eine Faltung entlang vorgegebener Faltlinien in Lappenteile unterteilt sind.The invention relates to a reclosable packaging made of plastic film, in particular for holding paper handkerchiefs, with a front wall, a rear wall, and with foldable side tabs which can be folded for opening and closing, the side tabs being divided into tab parts by folding along predetermined fold lines.

Kunststoffolien gehören zu den am häufigsten benutzten Verpackungsmaterialien. Insbesondere werden Kunststoffolien für quaderförmige Weichpackungen verwendet, die zur Aufnahme eines Stapels gefalteter Papier-Taschentücher dienen (DE-U-91 09 814.9). Bekannt sind aber auch bereits Zigaretten-Packungen, die aus einer mehrschichtigen (laminierten) Kunststoffolie bestehen.Plastic films are one of the most commonly used packaging materials. In particular, plastic films are used for rectangular soft packs, which serve to hold a stack of folded paper handkerchiefs (DE-U-91 09 814.9). However, cigarette packs are also known which consist of a multilayer (laminated) plastic film.

Eine für die Verpackungstechnik nachteilige Eigenschaft von Kunststoffolien besteht darin, daß infolge der materialbedingten Rückstellkräfte in Kunststoffolien durch bloßes Falten gebildete, konstant wiederkehrende Faltlinien nicht erzielbar sind. Diese sind aber insbesondere bei solchen Verpackungen erforderlich, die Faltlappen, insbesondere Schließlappen, zum mehrfachen Öffnen und Wiederverschließen der Verpackung aufweisen (DE-U-91 09 814.9). Bei solchen wiederverschließbaren Folienverpackungen ist es erforderlich, daß Faltlappen entlang vorgegebener Faltlinien zuverlässig korrekt gefaltet werden.A property of plastic films that is disadvantageous for packaging technology is that, due to the material-related restoring forces in plastic films, constant recurring fold lines formed by merely folding cannot be achieved. However, these are particularly necessary in the case of packagings which have folding tabs, in particular closing tabs, for multiple opening and reclosing of the pack (DE-U-91 09 814.9). With such resealable film packaging, it is necessary that folding tabs are reliably and correctly folded along predetermined folding lines.

Der Erfindung liegt demnach die Aufgabe zugrunde, Verpackungsmaterial mit dauerhaften Rückstellkräften, insbesondere Kunststoffolie so vorzubereiten bzw. zu behandeln, daß Faltlinien ohne äußeren Eingriff stets wiederkehrend gebildet werden.The invention is therefore based on the object of preparing or treating packaging material with permanent restoring forces, in particular plastic film, in such a way that fold lines are formed repeatedly without external intervention.

Zur Lösung dieser Aufgabe ist die erfindungsgemäße Verpackung dadurch gekennzeichnet, daß streifenförmige Bereiche der Lappenteile zu beiden Seiten der Faltlinien mit derselben Seite der Kunststoffolie aneinanderliegen und durch thermisches Siegeln oder Klebung dauerhaft miteinander verbunden sind.To achieve this object, the packaging according to the invention is characterized in that strip-shaped areas of the flap parts lie against one another on both sides of the fold lines with the same side of the plastic film and are permanently connected to one another by thermal sealing or adhesive bonding.

Bei der Erfindung wird demnach die Kunststoffolie im Bereich der Faltlinie durch dauerhafte Verformung behandelt, derart, daß eine stabile, von Rückstellkräften nicht beeinflußte Faltlinie gebildet wird. Vorzugsweise sind zu diesem Zweck unmittelbar benachbart zur Faltlinie verlaufende, streifenförmige Bereiche der Folie miteinander verbunden, und zwar durch thermisches Siegeln, durch Kleben oder auf andere Weise. Eine so entstehende Siegelnaht ist für wiederkehrende Faltungen, insbesondere im Zusammenhang mit dem Öffnen und Wiederverschließen der Verpackung, stabil. Die Siegelnaht bzw. die durch diese definierte Faltlinie hat gewisse Rückstellkräfte in Richtung auf die Faltstellung. Aus DE-A-2 029 976 ist eine aus einer Kunststoffolie gebildete Tragetasche bekannt, die im Querschnitt M-förmige Seitenfalten aufweist. Im Bereich derselben ist die Folie innenseitig mit einer Verstärkung aus einem aufgeklebten Papierstreifen versehen. Diese Verstärkung ist ebenfalls faltbar entsprechend der Seitenfalte der Tragetasche. Die Rückkehr der Folie in die Faltstellung wird durch diese Verstärkung nicht bzw. nicht wesentlich verbessert, da eine aktive Rückstellkraft durch den Papierstreifen nicht erzeugt wird.In the invention, the plastic film is therefore treated in the region of the fold line by permanent deformation in such a way that a stable fold line is formed which is not influenced by restoring forces. For this purpose, strip-shaped regions of the film which run directly adjacent to the fold line are preferably connected to one another, specifically by thermal sealing, by adhesive bonding or in some other way. A resulting sealing seam is stable for recurring folds, especially in connection with opening and reclosing the packaging. The sealing seam or the folding line defined by this has certain restoring forces in the direction of the folding position. From DE-A-2 029 976 a carrier bag formed from a plastic film is known, which has cross-sections M-shaped side folds. In the area of the same, the inside of the film is provided with a reinforcement made of a glued-on paper strip. This reinforcement is also foldable according to the side fold of the carrier bag. The return of the film to the folded position is not or not significantly improved by this reinforcement, since an active restoring force is not generated by the paper strip.

Die in erfindungsgemäßer Weise behandelte Folie ist besonders geeignet für wiederverschließbare, quaderförmige Verpackungen, bei denen eine Oberwand als Schließlappen dient und durch faltbare Seitenlappen mit schmalen Seitenwänden der Packung verbunden ist. Bei dieser Konstruktion einer Verpackung kommt es darauf an, daß beim Schließen des Schließlappens bzw. der Oberwand die Seitenlappen präzise zwischen Oberwand und Stirnfläche der Packung eingefaltet werden.The film treated in the manner according to the invention is particularly suitable for reclosable, rectangular packaging in which an upper wall serves as a closing flap and is connected to narrow side walls of the pack by foldable side flaps. In this construction of a package it is important that when the closing flap or the top wall is closed, the side flaps are precisely folded in between the top wall and the end face of the package.

Weitere Einzelheiten der Erfindung werden nachfolgend anhand eines Ausführungsbeispiels der erfindungsgemäßen Verpackung näher erläutert. Es zeigt:

Fig. 1
eine perspektivische Ansicht einer geöffneten Verpackung,
Fig. 2
eine Seitenansicht einer geöffneten Verpackung,
Fig. 3
eine Frontansicht der geöffneten Verpackung gemäß Fig. 2,
Fig. 4
eine Seitenansicht der Verpackung, ähnlich Fig. 2, jedoch in einer Zwischen-Schließstellung,
Fig. 5
eine Frontansicht der Verpackung gemäß Fig. 4,
Fig. 6
eine vergrößerte Darstellung des in der Fig. 4 eingekreisten Ausschnitts, und
Fig. 7
eine nochmals vergrößerte Schnittdarstellung der Verpackung gemäß Fig. 6 entlang der Linie VII-VII.
Further details of the invention are explained in more detail below using an exemplary embodiment of the packaging according to the invention. It shows:
Fig. 1
a perspective view of an opened package,
Fig. 2
a side view of an opened package,
Fig. 3
3 shows a front view of the opened packaging according to FIG. 2,
Fig. 4
3 shows a side view of the packaging, similar to FIG. 2, but in an intermediate closed position,
Fig. 5
3 shows a front view of the packaging according to FIG. 4,
Fig. 6
an enlarged view of the detail circled in FIG. 4, and
Fig. 7
another enlarged sectional view of the package of FIG. 6 along the line VII-VII.

Als vorteilhaftes Anwendungsbeispiel ist in den Zeichnungen eine quaderförmige Verpackung 10 dargestellt mit Vorderwand 11, Rückwand 12, schmalen Seitenwänden 13, 14 und Stirnwänden, d. h. Bodenwand 15 und Oberwand 16. Letztere ist einstückig mit der Rückwand 12 verbunden und erstreckt sich bei geöffneter Verpackung gemäß Fig. 1 in derselben Ebene wie diese. Ein freies Ende der Oberwand 16 ist als Lasche 17 ausgebildet. Diese reicht bei geschlossener Verpackung bis auf die Vorderwand 11 hinab.As an advantageous application example, a cuboid packaging 10 is shown in the drawings with front wall 11, rear wall 12, narrow side walls 13, 14 and end walls, ie bottom wall 15 and top wall 16. The latter is integrally connected to the rear wall 12 and extends in the same plane as the latter when the packaging is opened according to FIG. 1. A free end of the top wall 16 is designed as a tab 17. When the packaging is closed, this extends down to the front wall 11.

Die Oberwand 16 ist weiterhin jeweils mit den Seitenwänden 13, 14 verbunden, und zwar über etwa dreieckige Seitenlappen 18, 19. Diese laufen spitz zu bis zu rückseitigen Eckpunkten 20, 21, in denen auch die Oberwand 16, Rückwand 12, Seitenwand 13 bzw. Oberwand 16, Rückwand 12, Seitenwand 14 aneinanderstoßen.The top wall 16 is further connected to the side walls 13, 14, in particular via approximately triangular side tabs 18, 19. These run to the rear corner points 20, 21, in which the top wall 16, rear wall 12, side wall 13 and Butt top wall 16, rear wall 12, side wall 14.

Die Verpackung besteht aus einer Kunststoffolie. Diese ist nicht zwangsläufig mit vorgefertigten Faltlinien versehen. Letzere entstehen vielmehr erst durch den Gebrauch der Verpackung und sind im Einzelfall gezielt an bestimmten Stellen vorgesehen. Die Übergänge zwischen den einzelnen Wandungen 11..16 bzw. Lappen 18, 19 sind demnach nicht scharf ausgeprägt und lediglich in den Fig. als (Knick-)Linien dargestellt. Beispielsweise ist die aufrechte Kante 22 zwischen der Vorderwand 11 und der Seitenwand 13 keine Kante im Sinne eines scharfen Knickes, sondern eher eine logische Trennung zwischen Seitenwand und Vorderwand. Gleiches gilt für die übrigen in den Fig. erkennbaren "Kanten", sofern nicht im folgenden anders dargestellt.The packaging consists of a plastic film. This is not necessarily provided with pre-made fold lines. Rather, the latter arise only through the use of the packaging and are specifically provided at certain points in individual cases. The transitions between the individual walls 11. 16 or tabs 18, 19 are therefore not sharply defined and are only shown as (crease) lines in the figures. For example, the upright edge 22 between the front wall 11 and the side wall 13 is not an edge in the sense of a sharp bend, but rather a logical separation between the side wall and the front wall. The same applies to the other "edges" that can be seen in the figures, unless otherwise shown below.

Die Fig. 2 bis 5 zeigen die Verpackung 10 einmal in geöffneter Stellung, analog Fig. 1, und zum anderen in einer Zwischen-Schließstellung, insbesondere Fig. 4. Bei letzterer ist die Oberwand 16 aus der Ebene der Rückwand 12 leicht nach vorne abgewinkelt. Die Lasche 17 ist nochmals weiter abgewinkelt, eine vergrößerte Darstellung hiervon zeigt Fig. 6.2 to 5 show the package 10 once in the open position, analogously to FIG. 1, and secondly in an intermediate closed position, in particular FIG. 4. In the latter, the upper wall 16 is angled slightly forwards from the plane of the rear wall 12 . The tab 17 is further angled further, an enlarged illustration of this is shown in FIG. 6.

In Öffnungsstellung (Fig. 2) sind die Seitenlappen gestreckt. Beim Schließvorgang werden die Seitenlappen 18, 19 nach innen gefaltet über eine Zwischenfaltstellung gemäß Fig. 4 und Fig. 5 bzw. Fig. 6 in eine Schließstellung, in der die Seitenlappen 18, 19 gefaltet unterhalb der Oberwand 16 liegen. Die Lasche 17 erstreckt sich im Bereich der Vorderwand 11 und kann lösbar mit dieser verbunden sein, zum Beispiel durch ein klebendes Tape.In the open position (Fig. 2) the side tabs are stretched. During the closing process, the side flaps 18, 19 are folded inward via an intermediate folding position according to FIGS. 4 and 5 or 6 into a closed position in which the side flaps 18, 19 are folded below the top wall 16. The tab 17 extends in the region of the front wall 11 and can be detachably connected to it, for example by an adhesive tape.

Zur exakten Faltung der hier dreieckförmig ausgebildeten Seitenlappen 18, 19 sind diese durch Faltlinien begrenzt und geteilt. Am Übergang der Seitenlappen 18, 19 zu den Seitenwänden 13, 14 sind Faltlinien 23, 24 vorgegeben, ebenso am Übergang der Seitenlappen 18, 19 zur Oberwand 16 entsprechende Faltlinien 25, 26. Ausgehend von den Eckpunkten 20, 21 verlaufen Faltlinien 27, 28 in Diagonalrichtung zur Teilung der Seitenlappen 18, 19 jeweils in einen mit der Oberwand 16 verbundenen Lappenteil 29, 30 und einen mit der Seitenwand 13, 14 verbundenen Lappenteil 31, 32.For the exact folding of the triangular side flaps 18, 19, these are delimited and divided by fold lines. Fold lines 23, 24 are specified at the transition from the side flaps 18, 19 to the side walls 13, 14, likewise fold lines 25, 26 corresponding to the transition from the side flaps 18, 19 to the top wall 16. Fold lines 27, 28 run in from the corner points 20, 21 Diagonal direction for dividing the side tabs 18, 19 into a tab part 29, 30 connected to the top wall 16 and a tab part 31, 32 connected to the side wall 13, 14.

Die hier dreieckförmigen Seitenlappen 18, 19 sollen auch nach mehrmaligem Öffnen und Schließen der Verpackung ein präzises Faltbild in Schließstellung aufweisen. Zu diesem Zweck sind mindestens die Faltlinien 27 und 28 in besonderer Weise ausgebildet, wie nämlich in Fig. 7 als Detail gezeigt. Die Seitenlappenteile (Lappenteil 29 und Lappenteil 31 bzw. 30 und 32) sind im Bereich der Faltlinie 27 bzw. 28 unter Bildung einer Naht 33 definierter Breite dauerhaft miteinander verbunden.The triangular-shaped side tabs 18, 19 here should have a precise folding pattern in the closed position even after the packaging has been opened and closed several times. For this purpose, at least the fold lines 27 and 28 are designed in a special way, as shown in detail in FIG. 7. The side flap parts (flap part 29 and flap part 31 or 30 and 32) are permanently connected to one another in the region of the fold line 27 or 28 to form a seam 33 of a defined width.

Vorzugsweise ist die Verpackung aus einem thermoplastischen Material hergestellt. Die Naht 33 ist dann durch Aufbringung von Druck und Wärme als Siegel- oder Prägenaht ausgebildet mit einer Breite von etwa 0,5 mm. Beim Schließen der Verpackung durch Anlegen der Oberwand 16 bzw. Lasche 17 an die Vorderwand 11 wird durch die Faltlinien 27, 28 bzw. die Naht 33 automatisch eine saubere Einwärtsfaltung der Seitenlappen 18, 19 erzielt. Es entstehen keine störenden Überstände nach außen und auch keine ungewollten zusätzlichen Falten. Die Verpackung 10 bleibt auch nach mehrmaligem Öffnen und Schließen in diesem Bereich funktionell und optisch ansprechend.The packaging is preferably made of a thermoplastic material. The seam 33 is then formed by applying pressure and heat as a sealed or embossed seam with a width of approximately 0.5 mm. When the packaging is closed by placing the top wall 16 or tab 17 against the front wall 11, the fold lines 27, 28 or the seam 33 automatically achieve a clean inward folding of the side flaps 18, 19. There are no disruptive protrusions to the outside and no unwanted additional ones Wrinkles. The package 10 remains functionally and visually appealing in this area even after repeated opening and closing.

Die beschriebene Naht 33 kann auch alternativ oder zusätzlich im Bereich der Faltlinien 23..26 vorgesehen sein, ebenso wie diese selbst alternativ oder zusätzlich zu den Faltlinien 27, 28 angeordnet sind.The seam 33 described can alternatively or additionally be provided in the region of the fold lines 23, 26, just as these themselves are alternatively or additionally arranged to the fold lines 27, 28.

Ein zur Bildung der Verpackung 10 vorgesehener Zuschnitt ist einstückig ausgebildet und hier nicht gezeigt. Die Lasche 17 weist einen freien Rand 35 auf, der etwa kreisförmig konvex gekrümmt ist. Als Gegenstück hierzu ist ein freier Rand 36 der Vorderwand 11 konkav gekrümmt ausgebildet. Am flach ausgebreiteten Zuschnitt gehen die Ränder 34, 35, 36 nach Art einer Sinuslinie fließend ineinander über. Die sich ergebende Randlinie (Sinuslinie) weist keine Knicke oder Sprünge auf.A blank provided to form the packaging 10 is formed in one piece and is not shown here. The tab 17 has a free edge 35 which is approximately circularly convexly curved. As a counterpart to this, a free edge 36 of the front wall 11 is concavely curved. On the blank which is spread out flat, the edges 34, 35, 36 flow into one another in the manner of a sine line. The resulting edge line (sine line) has no kinks or jumps.

Die in Fig. 7 gezeigte formstabile Faltlinie bzw. Prägenaht kann auch durch Klebung der streifenförmigen Bereiche hergestellt sein. Alternativ sind auch andere formverändernde Behandlungen der Folie im Bereich von Faltlinien möglich, zum Beispiel ein örtliches Recken der Folien zur Schaffung einer streifenförmigen Materialverminderung im Bereich der Faltlinie.The dimensionally stable fold line or embossed seam shown in FIG. 7 can also be produced by gluing the strip-shaped regions. Alternatively, other shape-changing treatments of the film in the area of fold lines are also possible, for example local stretching of the films to create a strip-like material reduction in the area of the fold line.

Die beschriebene und in Fig. 7 dargestellte Faltlinie kann auch bei anderen Formen und Typen von Verpackungen angewendet werden, wo stabilisierte, zuverlässig gebildete Faltlinien erforderlich sind.The fold line described and shown in FIG. 7 can also be applied to other shapes and types of packaging where stabilized, reliably formed fold lines are required.

Claims (6)

  1. Reclosable pack (10) made from plastic foil, especially for receiving paper handkerchiefs, with a front wall (11), a rear wall (12) and with foldable side tabs (18, 19) which, for opening and closing, can be folded, the side tabs (18, 19) being subdivided into tab parts (29, 31; 30, 32) by folding along predetermined folding lines (27, 28), characterized in that strip-shaped regions of the tab parts (29, 31; 30, 32) on both sides of the folding lines (27, 28) rest with the same side of the plastic foil against one another and are connected permanently to one another by heat sealing or adhesive bonding.
  2. Pack according to Claim 1, characterized in that, to form the folding line (27, 28), strip-like regions of the plastic foil which are adjacent to the latter, with a width of up to 1 mm, preferably of approximately 0.5 mm, are connected to one another.
  3. Pack according to Claim 1 or 2, characterized in that there is a cuboid shape with narrow side walls (13, 14), top wall (16) and bottom wall (15), the top wall (16) adjoining the rear wall (12) in one piece and being foldable in the direction of the front wall (11) in order to close the pack (10), and, furthermore, the top wall (16) being connected to the side walls (13, 14) by means of the respective foldable side tabs (18, 19).
  4. Pack according to Claim 3, characterized in that the folding line (27, 28) divides the side tab (18, 19) into a tab part (29, 30) connected to the top wall (16) and a tab part (31, 32) connected to the side wall (13, 14).
  5. Pack according to Claim 3 or 4, characterized in that a predetermined folding line (23, 24) is at the same time a connecting line between the side wall (13, 14) and side tabs (18, 19).
  6. Pack according to Claim 3 or 4, characterized in that a predetermined folding line (25, 26) is at the same time a connecting line between the top wall (16) and side tabs (18, 19).
EP94102948A 1993-03-16 1994-02-26 Reclosable container made of plastic foil Expired - Lifetime EP0615919B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4308343 1993-03-16
DE4308343A DE4308343A1 (en) 1993-03-16 1993-03-16 Resealable cuboid packaging made of plastic film

Publications (2)

Publication Number Publication Date
EP0615919A1 EP0615919A1 (en) 1994-09-21
EP0615919B1 true EP0615919B1 (en) 1996-11-27

Family

ID=6482943

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94102948A Expired - Lifetime EP0615919B1 (en) 1993-03-16 1994-02-26 Reclosable container made of plastic foil

Country Status (7)

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US (1) US5439166A (en)
EP (1) EP0615919B1 (en)
JP (1) JP3143560B2 (en)
AT (1) ATE145615T1 (en)
BR (1) BR9401158A (en)
DE (2) DE4308343A1 (en)
ES (1) ES2094575T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0743264B1 (en) * 1995-05-16 1998-07-15 The Procter & Gamble Company Wrapping blank of paper or plastic film for a cuboid soft pack for cellulose tissues
EP1074481A1 (en) 1999-07-22 2001-02-07 The Procter & Gamble Company A flexible bag having a tear off band for easy opening
SE524519C8 (en) * 2002-12-13 2004-11-10 Tetra Laval Holdings & Finance Method and apparatus for folding the bottom of a package and into a package having a weight thus bottom
NL1023513C2 (en) * 2003-05-23 2004-11-24 Asmopak B V Wet wipe container, assembled from blank preferably with moisture proof lining
US9932149B2 (en) 2013-05-22 2018-04-03 The Procter & Gamble Company Package with integrally formed handle and method of making the same

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1065710B (en) * 1958-09-05 1959-09-17 Papierwerk Paul Reuther GmbH, Neuwied/Rhein BLOCK BOTTOM BAG WITH REINFORCING STRIPS AND SEAMLESS BOTTOM
US3067040A (en) * 1959-08-17 1962-12-04 Schjeldahl Co G T Bread package
US3679048A (en) * 1970-04-01 1972-07-25 Masaaki Fujio Wrapper with tear tabs of heat-shrinking synthetic resin film
DE2029976A1 (en) * 1970-06-18 1971-12-23 Nord West Papierwerk Karl Götze, 5253 Lindlar Carrier bag of low pressure polyethylene - with paper strip stiffeners at sides and grip holes
FR2159659A5 (en) * 1971-11-08 1973-06-22 Huni Christian Plastic bags - with tape handle readily introduced using conventional bag mfg machinery
DE7539076U (en) * 1975-12-08 1976-04-08 Waldhof Aschaffenburg Papier Packaging sleeve
DE2840409A1 (en) * 1978-09-16 1980-04-03 Ritter Kg Alfred PACKING, ESPECIALLY TUBULAR BAG PACKING, FOR CHOCOLATE OR CHOCOLATE STUFF BARS OR RODS
JPS601230A (en) * 1983-06-20 1985-01-07 Toyo Rubber Chem Ind Co Ltd Production of colored thermoplastic resin
DE3324490C1 (en) * 1983-07-07 1984-11-22 Vereinigte Papierwerke Schickedanz & Co, 8500 Nürnberg Reclosable packaging for paper towels and web of film to produce said packaging
US4607786A (en) * 1985-03-18 1986-08-26 Waldorf Corporation Double insert lock carton and blank therefor
JPH0542021Y2 (en) * 1988-09-07 1993-10-22
JPH02124816U (en) * 1989-03-20 1990-10-15
DE3911779A1 (en) * 1989-04-11 1990-10-18 Focke & Co FILM PACKAGING FOR PAPER HANDKERCHIEFS
DE3920065A1 (en) * 1989-04-20 1990-10-25 Focke & Co (FILM) PACKAGING FOR PARTICULAR PAPER HANDKERCHIEFS
JPH04112013U (en) * 1991-03-20 1992-09-29 キユーピー株式会社 packaging box
DE9109814U1 (en) * 1991-08-08 1991-09-26 Vp-Schickedanz Ag, 8500 Nuernberg, De
DE9209040U1 (en) * 1992-07-06 1992-10-08 Simon, Norbert, 7812 Bad Krozingen, De

Also Published As

Publication number Publication date
DE4308343A1 (en) 1994-09-22
ATE145615T1 (en) 1996-12-15
DE59401103D1 (en) 1997-01-09
JPH06315444A (en) 1994-11-15
US5439166A (en) 1995-08-08
ES2094575T3 (en) 1997-01-16
EP0615919A1 (en) 1994-09-21
BR9401158A (en) 1994-11-08
JP3143560B2 (en) 2001-03-07

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