EP0283940B1 - Foil cover for objects - Google Patents

Foil cover for objects Download PDF

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Publication number
EP0283940B1
EP0283940B1 EP88104286A EP88104286A EP0283940B1 EP 0283940 B1 EP0283940 B1 EP 0283940B1 EP 88104286 A EP88104286 A EP 88104286A EP 88104286 A EP88104286 A EP 88104286A EP 0283940 B1 EP0283940 B1 EP 0283940B1
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EP
European Patent Office
Prior art keywords
film
tear
edge
cover according
envelope body
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
EP88104286A
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German (de)
French (fr)
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EP0283940A2 (en
EP0283940A3 (en
Inventor
Jules Fischer
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.)
Folien Fischer AG
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Folien Fischer AG
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Publication date
Application filed by Folien Fischer AG filed Critical Folien Fischer AG
Priority to AT88104286T priority Critical patent/ATE85291T1/en
Publication of EP0283940A2 publication Critical patent/EP0283940A2/en
Publication of EP0283940A3 publication Critical patent/EP0283940A3/en
Application granted granted Critical
Publication of EP0283940B1 publication Critical patent/EP0283940B1/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
    • B65D75/5827—Tear-lines provided in a wall portion
    • B65D75/5833—Tear-lines provided in a wall portion for tearing out a portion of the wall
    • B65D75/5844—Tear-lines provided in a wall portion for tearing out a portion of the wall the portion of the wall being a narrow strip, e.g. between lines of weakness
    • 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

Definitions

  • the invention relates to a film covering for hard objects, such as bottles, cans or the like. According to the preamble of patent claim 1.
  • Foil wrappers of the aforementioned type are known from widespread and thus obvious use.
  • the wrapper covers the closure or a prepared opening point of the goods package and thus also serves to protect the contents of the package, which is important for the consumer.
  • the opening of the packaging necessary to open the wrapping is complicated and even difficult because of the generally considerable tear and separation strength of the wrapping film. It is therefore common practice to insert tear threads or tear tapes into the covering. This is at the mass production of such casings involves considerable effort.
  • the rapid finding and gripping of the handling section of such tear-open elements is comparatively cumbersome, if not longer handling sections which emerge from the casing and are therefore mostly undesirable for aesthetic reasons are provided.
  • the object of the invention is therefore to provide a film wrapping which, with essentially undiminished cohesive strength, is distinguished by simple handling when opened and by low manufacturing outlay.
  • the solution to this problem according to the invention is determined in a casing of the type mentioned at the outset by the features specified in the characterizing part of patent claim 1.
  • the arrangement of tearing aids offers the desired advantage of low manufacturing costs and, as detailed studies have shown, surprisingly enables a plastic film based on polystyrene to be used, surprisingly, even without weakening the film across the width of the envelope body, which can be carried out by hand with little effort and is safe and complete Separation process.
  • What is essential for this is the anisotropy generated by pre-stretching the film in the circumferential direction, which generally results in an increase in the tear propagation strength parallel to the direction of stretching, but a decrease in it transverse to the direction of stretching, ie in the direction of the intended crack propagation. It goes without saying that a suitable selection within the available film materials is necessary in order to rule out excessively high tear resistance values.
  • a sleeve-shaped package body 1 is enclosed in an envelope body 2 consisting of a shrink film and extending over the peripheral surface 4 of the package body.
  • the film of the enveloping body is stretched in the circumferential direction of the packing body 1 according to arrow P.
  • Such a stretching direction results e.g. in the production of the enveloping body from a film web stretched in its longitudinal direction, which extends in the circumferential direction of the wrapped object and is closed in a known manner, not shown here, at the butt joints extending in the axial direction by welding or gluing.
  • the enveloping body 2 encompasses the peripheral edges 1b of the end faces 1a of the packing body with film edge edge sections 6a on both sides.
  • the upper film edge edge section 6a visible in FIG. 1 is provided with two notches 7 arranged at a small mutual circumferential spacing, which extend from the film edge 5a and at an angle — here essentially at right angles — radially into the edge region 6a and further run around the edge 1b, but are limited to the edge region 6aa directly adjoining this edge.
  • weak points 10 can advantageously be provided according to FIG. 3, which are designed as notches and maintain the cohesion of the edge area 6a of the film edge.
  • short gates 10a can be introduced on the film edge 5a without significant additional effort, to which notch groove sections 10b encompassing the edges are connected.
  • the film edge 5b lies with the adjacent edge area 6b of a cylindrical one Envelope body 3 on the peripheral surface 4 of the same.
  • tear-open aids are formed as incisions 9
  • the inherent tension of the film generally leads to a striking lifting of the handling section H, as has been shown in the experience, without continuous weak points in the envelope body, tear lines R.
  • the tear-open aids are designed as rows of perforations 11 limited to the edge area 6b of the film edge, which in turn maintains the cohesion of the edge 5b of the film.
  • This allows the formation of a handling section H1 protruding from the peripheral surface 4 of the packing body 1 in the form of a rounded bulge in the edge area 6b of the film edge.
  • Such a film bulge can be produced in the production of the film web by a comparatively simple pressing process.
  • short gates 11a which do not significantly impair the cohesion of the film edge, can also be provided here, which facilitate scribing in the case of thicker films.
  • cylindrical enveloping bodies 3 are again provided, but with triangular cutouts 12 and 13 and sharp-edged inner edges 12a and 13a as tearing aids.
  • This design offers certain manufacturing advantages and serves in the case of Design according to Figure 6 to form a uniformly protruding handling section H2 of pleasing outline shape.
  • a thread-like tear-open element 14 is formed between the closely adjacent cutouts 13, and without any additional effort in the form of the longitudinal weld seam of the enveloping body, which is already present.
  • suitable seam bodies result for this purpose, on both sides of which the continuous tear lines R are formed without further precautions.
  • a protruding section 14a of the seam body is also a convenient handle for the formation of cracks.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Wrappers (AREA)
  • Laminated Bodies (AREA)

Abstract

The cover has a covering body (2) which extends without interruption over a circumferential surface (4) of the object (1) and consists at least partially of shrink film which is prestretched in the circumferential direction. <??>The intention is to achieve simple handling during opening and less manufacturing expenditure whilst maintaining unreduced cohesion strength of the covering body. Provided at least on one film edge (5a) is a pair of preformed intended tearing regions (7) which engage in the edge region (6a) of the film edge, are limited to this edge region in their engagement depth and are arranged with mutual spacing in the circumferential direction of the wrapped object (1). Said intended tearing regions have a reduced tearing and/or separation strength compared to the adjacent film regions. <IMAGE>

Description

Die Erfindung betrifft eine Folienumhüllung für harte Gegenstände, wie Flaschen, Büchsen oder dergl. gemäss dem Oberbegriff des Patentanspruchs 1.The invention relates to a film covering for hard objects, such as bottles, cans or the like. According to the preamble of patent claim 1.

Folienumhüllungen der vorgenannten Art sind durch weit verbreiteten und somit offenkundigen Gebrauch bekannt. Die Umhüllung überdeckt in vielen Fällen den Verschluss oder eine vorbereitete Oeffnungsstelle der Warenpackung und dient so auch dem für den Verbraucher wichtigen Originalitätsschutz des Packungsinhaltes. Ohne besondere Vorkehrungen gestaltet sich das zum Oeffnen der Warenpackung notwendige Auftrennen der Umhüllung wegen der im allgemeinen beträchtlichen Einreiss- und Trennfestigkeit der Umhüllungsfolie umständlich und sogar schwierig. Es ist daher vielfach üblich, in die Umhüllung Aufreissfäden oder Aufreissbänder einzulegen. Dies ist bei der Massenherstellung solcher Umhüllungen mit erheblichem Aufwand verbunden. Ausserdem ist das rasche Auffinden und Ergreifen des Handhabungsabschnitts solcher Aufreisselemente vergleichsweise umständlich, wenn nicht längere, aus der Umhüllung vortretende und daher aus ästhetischen Gründen meist unerwünschte Handhabungsabschnitte vorgesehen werden. Die ebenfalls als Oeffnungshilfe allgemein üblichen und z.B. aus der DE-A1-28 04 851 oder der DE-A1-20 54 325 bekannten, über die gesamte Umhüllung durchgehenden Perforationen sind zwar mit vergleichsweise geringem Aufwand herstellbar, jedoch insbesondere im Hinblick auf den Spannungszustand der aufgeschrumpften Folie mit einer oft unerwünschten Schwächung des Zusammenhaltes der Umhüllung verbunden. Auch gestaltet sich das Auffinden der äusserst schmalen Anrissstelle und die Herstellung des Anrisses von Hand zumindest ohne zusätzliche Massnahmen umständlich.Foil wrappers of the aforementioned type are known from widespread and thus obvious use. In many cases, the wrapper covers the closure or a prepared opening point of the goods package and thus also serves to protect the contents of the package, which is important for the consumer. Without any special precautions, the opening of the packaging necessary to open the wrapping is complicated and even difficult because of the generally considerable tear and separation strength of the wrapping film. It is therefore common practice to insert tear threads or tear tapes into the covering. This is at the mass production of such casings involves considerable effort. In addition, the rapid finding and gripping of the handling section of such tear-open elements is comparatively cumbersome, if not longer handling sections which emerge from the casing and are therefore mostly undesirable for aesthetic reasons are provided. The perforations that are also common as opening aids and are known, for example, from DE-A1-28 04 851 or DE-A1-20 54 325, can be produced over the entire envelope with comparatively little effort, but in particular with regard to the tension state of the shrink-wrapped film with an often undesirable weakening of the cohesion of the casing. Finding the extremely narrow crack location and making the crack by hand is also cumbersome, at least without additional measures.

Aufgabe der Erfindung ist daher die Schaffung einer Folienumhüllung, die sich bei im wesentlichen unverminderter Zusammenhaltfestigkeit durch einfache Handhabung beim Oeffnen sowie durch geringen Herstellungsaufwand auszeichnet. Die erfindungsgemässe Lösung dieser Aufgabe ist bei einer Umhüllung der eingangs genannten Art durch die im Kennzeichen des Patentanspruchs 1 angegebenen Merkmale bestimmt.The object of the invention is therefore to provide a film wrapping which, with essentially undiminished cohesive strength, is distinguished by simple handling when opened and by low manufacturing outlay. The solution to this problem according to the invention is determined in a casing of the type mentioned at the outset by the features specified in the characterizing part of patent claim 1.

Die Anordnung von in ihrer Erstreckung auf den Folienkanten-Randbereich begrenzten Aufreisshilfen (Einschnitte, Ausschnitte, Schwachstellen) bietet den erstrebten Vorteil geringen Herstellungsaufwandes und ermöglicht - wie eingehende Untersuchungen erwiesen haben - bei Verwendung einer Kunststoffolie auf Polystyrolbasis überraschenderweise auch ohne sich über die Breite des Hüllkörpers erstreckende Schwächung der Folie einen mit geringem Kraftaufwand von Hand durchführbaren sowie sicher und vollständig ablaufenden Trennvorgang. Wesentlich dafür ist die durch Vor-Reckung der Folie in Umfangsrichtung erzeugte Anisotropie, die im allgemeinen eine Erhöhung der Weiterreissfestigkeit parallel zur Reck-Richtung, jedoch eine Verminderung derselben quer zur Reck-Richtung, d.h. in Richtung des beabsichtigten Rissfortschrittes, zur Folge hat. Dabei versteht es sich, dass eine geeignete Auswahl innerhalb der verfügbaren Folienmaterialien erforderlich ist, um generell zu hohe Werte der Weiterreissfestigkeit auszuschliessen.The arrangement of tearing aids (incisions, Cutouts, weak spots) offers the desired advantage of low manufacturing costs and, as detailed studies have shown, surprisingly enables a plastic film based on polystyrene to be used, surprisingly, even without weakening the film across the width of the envelope body, which can be carried out by hand with little effort and is safe and complete Separation process. What is essential for this is the anisotropy generated by pre-stretching the film in the circumferential direction, which generally results in an increase in the tear propagation strength parallel to the direction of stretching, but a decrease in it transverse to the direction of stretching, ie in the direction of the intended crack propagation. It goes without saying that a suitable selection within the available film materials is necessary in order to rule out excessively high tear resistance values.

Die Erfindung wird weiter unter Bezugnahme auf die in den Zeichnungen schematisch dargestellten Ausführungsbeispiele erläutert. Hierin zeigt:

Fig.1
eine büchsenförmige Warenpackung mit stirnkantenumgreifender Folienumhüllung und ebensolchen Aufreisshilfen in perspektivischer Seitenansicht,
Fig.2
den oberen Teil einer Warenpackung mit Folienumhüllung ähnlich Fig.1, jedoch mit abgewandelter Ausbildung der Aufreisshilfen,
Fig.3
in grösserem Abbildungsmassstab einen sektorartigen Ausschnitt des oberen Teils der Warenpackung mit kantenumgreifender Folienumhüllung, jedoch mit einer weiteren Abwandlung der Aufreisshilfen,
Fig.4
wiederum den oberen Teil einer büchsenförmigen Warenpackung, jedoch mit einer auf die zylindrische Umfangsfläche derselben begrenzten Folienumhüllung und zugehörigen Aufreisshilfen,
Fig.5
eine Warenpackung mit Folienumhüllung entsprechend Fig.4, jedoch mit einer besonderen Gestaltung der Aufreisshilfen und des zwischen diesen befindlichen Abschnitts des Folienkanten-Randbereiches, sowie
Fig.6
und
Fig.7
je eine weitere Ausführungsform von büchsenförmigen Warenpackungen mit zylindrischem Folien-Hüllkörper und in besonderer Weise gestalteten Aufreisshilfen sowie Handhabungs-Hilfsmitteln für das Aufreissen der Umhüllung.
The invention is further explained with reference to the exemplary embodiments shown schematically in the drawings. Herein shows:
Fig. 1
a box-shaped product pack with a foil wrapping around the end edges and similar tear-open aids in a perspective side view,
Fig. 2
the upper part of a goods package with foil wrapping similar to Figure 1, but with a modified design of the tear openers,
Fig. 3
on a larger scale, a sector-like cutout of the upper part of the goods package with film wrapping around the edges, but with a further modification of the tear openers,
Fig. 4
again the upper part of a box-shaped goods package, but with a film covering limited to the cylindrical peripheral surface of the same and associated tear-open aids,
Fig. 5
a goods pack with film wrapping according to Figure 4, but with a special design of the tear-openers and the section of the film edge edge area located between them, and
Fig. 6
and
Fig. 7
A further embodiment of box-shaped goods packs with a cylindrical film envelope and specially designed tear-open aids and handling aids for tearing open the wrapper.

Bei der Warenverpackung nach Fig.1 ist ein büchsenförmiger Packungskörper 1 in einen aus einer Schrumpf-Folie bestehenden, sich über die Umfangsfläche 4 des Packungskörpers erstreckenden Hüllkörper 2 eingefasst. Die Folie des Hüllkörpers ist in Umfangsrichtung des Packungskörpers 1 gemäss Pfeil P vorgereckt. Eine solche Reckrichtung ergibt sich z.B. bei einer Herstellung des Hüllkörpers aus einer in ihrer Längsrichtung gereckten Folienbahn, die sich in Umfangsrichtung des umhüllten Gegenstandes erstreckt und in an sich bekannter, hier nicht dargestellter Weise an sich in Axialrichtung erstreckenden Stossstellen durch Schweissung oder Klebung geschlossen ist.In the case of the goods packaging according to FIG. 1, a sleeve-shaped package body 1 is enclosed in an envelope body 2 consisting of a shrink film and extending over the peripheral surface 4 of the package body. The film of the enveloping body is stretched in the circumferential direction of the packing body 1 according to arrow P. Such a stretching direction results e.g. in the production of the enveloping body from a film web stretched in its longitudinal direction, which extends in the circumferential direction of the wrapped object and is closed in a known manner, not shown here, at the butt joints extending in the axial direction by welding or gluing.

Der Hüllkörper 2 umgreift mit beiderseitigen Folienkanten-Randabschnitten 6a die Umfangskanten 1b der Stirnseiten 1a des Packungskörpers. Der in Fig.1 sichtbare obere Folienkanten-Randabschnitt 6a ist mit zwei in geringem gegenseitigem Umfangsabstand angeordneten Einschnitten 7 als Aufreisshilfen versehen, die von der Folienkante 5a ausgehen und im Winkel - hier im wesentlichen rechtwinklig - zu dieser radial in den Randbereich 6a hinein sowie weiter um die Kante 1b verlaufen, jedoch auf den sich unmittelbar an diese Kante anschliessenden Randbereich 6aa begrenzt sind.The enveloping body 2 encompasses the peripheral edges 1b of the end faces 1a of the packing body with film edge edge sections 6a on both sides. The upper film edge edge section 6a visible in FIG. 1 is provided with two notches 7 arranged at a small mutual circumferential spacing, which extend from the film edge 5a and at an angle — here essentially at right angles — radially into the edge region 6a and further run around the edge 1b, but are limited to the edge region 6aa directly adjoining this edge.

Zwischen den Einschnitten 7 ergibt sich ein unter der Wirkung der Folienspannung aus der Folienfläche heraushebender Handhabungsabschnitt, der bequem von Hand ergriffen werden kann. Durch vergleichsweise leichten Zug nach oben bzw. aussen und begünstigt durch die Eigenspannung der Folie gemäss Pfeil P bilden sich im Hüllkörper innerhalb der ungeschwächten Folienbereiche an der Umfangsfläche 4 fortschreitende Risslinien R, die erfahrungsgemäss ihre durch die Einschnitte 7 bestimmte, achsparallele Anfangsrichtung beibehalten und zu einer vollständigen Trennung des Hüllkörpers führen.Between the incisions 7, one emerges from the film surface under the effect of the film tension Handling section that can be comfortably gripped by hand. A comparatively slight pull upwards or outwards and favored by the inherent tension of the film according to arrow P form 4 progressive tear lines R in the envelope within the unimpaired film areas on the circumferential surface, which experience has shown that they maintain their axially parallel starting direction determined by the incisions 7 and become one complete separation of the envelope.

Da die Folienkante 5a im Stirnbereich des Packungskörpers bequem zugänglich ist und sich - ebenfalls unter der Wirkung der Eigenspannung - meist leicht von der Stirnfläche des Packungskörpers abhebt, können gegebenenfalls gemäss Fig.2 kürzere, die Umfangskante 1b nicht umgreifende Einschnitte 8 vorgesehen werden, was die Herstellung besonders vereinfacht.Since the film edge 5a is easily accessible in the end region of the package body and - also under the effect of the internal stress - usually slightly rises from the end surface of the package body, shorter incisions 8, which do not encompass the peripheral edge 1b, can be provided, as shown in FIG Manufacturing particularly simplified.

Wenn auf einen sich abhebenden Handhabungsabschnitt verzichtet werden soll, so können gemäss Fig.3 mit Vorteil Schwachstellen 10 vorgesehen werden, die als Kerbrinnen ausgebildet sind und den Zusammenhalt des Folienkanten-Randbereiches 6a wahren. Ohne wesentlichen Mehraufwand lassen sich jedoch an der Folienkante 5a kurze Anschnitte 10a einbringen, an die sich kantenumgreifende Kerbrinnenabschnitte 10b anschliessen.If a lifting handling section is to be dispensed with, weak points 10 can advantageously be provided according to FIG. 3, which are designed as notches and maintain the cohesion of the edge area 6a of the film edge. However, short gates 10a can be introduced on the film edge 5a without significant additional effort, to which notch groove sections 10b encompassing the edges are connected.

Bei der Ausführung nach Fig.4 liegt die Folienkante 5b mit dem angrenzenden Randbereich 6b eines zylindrischen Hüllkörpers 3 auf der Umfangsfläche 4 desselben. Hier führt die Eigenspannung der Folie bei einer Ausbildung der Aufreisshilfen als Einschnitte 9 - wie dargestellt - im allgemeinen zu einem markanten Abheben des Handhabungsabschnitts H. Es bilden sich auch hier erfahrungsgemäss ohne durchgehende Schwachstellen im Hüllkörper achsparallel fortschreitende Risslinien R.In the embodiment according to FIG. 4, the film edge 5b lies with the adjacent edge area 6b of a cylindrical one Envelope body 3 on the peripheral surface 4 of the same. Here, when the tear-open aids are formed as incisions 9, the inherent tension of the film generally leads to a striking lifting of the handling section H, as has been shown in the experience, without continuous weak points in the envelope body, tear lines R.

Bei der Ausführung nach Fig.5 sind die Aufreisshilfen als auf den Folienkanten-Randbereich 6b beschränkte Perforationsreihen 11 ausgebildet, wodurch wiederum der Zusammenhalt der Folienkante 5b gewahrt bleibt. Dies erlaubt die Bildung eines von der Umfangsfläche 4 des Packungskörpers 1 abstehenden Handhabungsabschnitts H1 in Form einer gerundeten Ausbuchtung des Folienkanten-Randbereiches 6b. Hierdurch ergibt sich eine besonders bequeme Handhabung. Eine solche Folienausbuchtung lässt sich bei der Herstellung der Folienbahn durch einen vergleichsweise einfachen Pressvorgang herstellen. Gegebenenfalls können auch hier zusätzlich kurze, den Zusammenhalt der Folienkante nicht wesentlich beeinträchtigende Anschnitte 11a vorsehen, die im Falle von stärkeren Folien das Anreissen erleichtern.In the embodiment according to FIG. 5, the tear-open aids are designed as rows of perforations 11 limited to the edge area 6b of the film edge, which in turn maintains the cohesion of the edge 5b of the film. This allows the formation of a handling section H1 protruding from the peripheral surface 4 of the packing body 1 in the form of a rounded bulge in the edge area 6b of the film edge. This results in particularly convenient handling. Such a film bulge can be produced in the production of the film web by a comparatively simple pressing process. If necessary, short gates 11a, which do not significantly impair the cohesion of the film edge, can also be provided here, which facilitate scribing in the case of thicker films.

Bei den Ausführungen nach Fig.6 und 7 sind wiederum zylindrische Hüllkörper 3 vorgesehen, jedoch mit dreieckförmigen Ausschnitten 12 bzw. 13 und scharfkantiger Innenkante 12a bzw. 13a als Aufreisshilfen. Diese Gestaltung bietet gewisse Herstellungsvorteile und dient im Falle der Ausführung nach Fig.6 zur Bildung eines gleichmässig abstehenden Handhabungsabschnitts H2 von gefälliger Umrissform.In the embodiments according to FIGS. 6 and 7, cylindrical enveloping bodies 3 are again provided, but with triangular cutouts 12 and 13 and sharp-edged inner edges 12a and 13a as tearing aids. This design offers certain manufacturing advantages and serves in the case of Design according to Figure 6 to form a uniformly protruding handling section H2 of pleasing outline shape.

Bei der Ausführung nach Fig.7 ist zwischen den eng nebeneinanderliegenden Ausschnitten 13 ein fadenförmiges Aufreisselement 14 gebildet, und zwar ohne jeglichen Zusatzaufwand in Form der ohnehin vorhandenen Längsschweissnaht des Hüllkörpers. Insbesondere bei dem an sich bekannten Schliessen der Umhüllung durch Trennschweissen aus einer durchgehenden Folienbahn ergeben sich für diesen Zweck geeignete Nahtkörper, beiderseits deren sich ohne weitere Vorkehrungen durchgehende Risslinien R bilden. Zwischen den Ausschnitten 13 ergibt sich ebenfalls ohne besondere Vorkehrungen ein vorstehender Abschnitt 14a des Nahtkörpers, der eine bequeme Handhabe für die Rissbildung darstellt.In the embodiment according to FIG. 7, a thread-like tear-open element 14 is formed between the closely adjacent cutouts 13, and without any additional effort in the form of the longitudinal weld seam of the enveloping body, which is already present. Particularly in the case of the known closing of the casing by means of separation welding from a continuous sheet of film, suitable seam bodies result for this purpose, on both sides of which the continuous tear lines R are formed without further precautions. Between the cutouts 13 there is also a protruding section 14a of the seam body, which is a convenient handle for the formation of cracks.

Claims (10)

  1. Film cover for objects such as bottles, tin cans, etc., with an envelope body (2,3), which extends in closed manner over a circumferential surface (49) of the object (1) and at least zonally comprises shrink film prestretched in the circumferential direction of the covered object (1) and shrunk onto the object and in which on at least one film edge (5a,5b) of the envelope body (2,3) is provided at least one pair of preshaped notches (7,8,9,10a) and/or cutouts (12,13) extending transversely to the circumferential direction, engaging in the marginal area (6a,6b) of the film edge and which are circumferentially reciprocately spaced and/or elongated weak points (11,10b) extending transversely to the film edge and, compared with the adjacent film regions, having a reduced tear and/or rupture strength as tear-off aids, characterized in that none of the said tear-off aids (7-13) extends over the full width of the envelope body (2,3), that said tear-off aids (7-13) are limited in their engagement depth to said marginal area (6a,6b), that consequently at least immediately on the other side of the marginal area there are no tear-off aids and that the shrink film used for the envelope body is made from a polystyrene-based plastics material.
  2. Film cover according to claim 1, characterized in that the envelope body (2) in per se known manner has at least one film edge marginal area (6a) extending along a circumferential edge (1b) at least on one face (1a) of the covered object and that the tear-off aids (7,9,10) extend from the front film edge (5a) into that part (6aa) of the film edge marginal area (6a) located on the other side of the circumferential edge (1b).
  3. Film cover according to claims 1 or 2, characterized in that the weak points have rows of perforations (11).
  4. Film cover according to claims 1 or 2, characterized in that the weak points have notch channels (10b).
  5. Film cover according to one of the claims 1 or 2, characterized in that the cutouts (12,13) are flat and that their contour engaging in the film edge marginal area forms sharply curved notch initial tear points (12a,13a).
  6. Film cover according to claim 5, characterized in that the flat cutouts (12,13) are triangular.
  7. Film cover according to one of the claims 3 to 6, characterized in that in the film edge marginal area (6b) between two adjacent perforation rows (11) is formed a bulge (11a) projecting from the circumferential surface (4) of the covered object (1).
  8. Film cover according to one of the preceding claims, characterized in that in the film edge marginal area (6b) between two adjacent cutouts (13) within the envelope body (3) is provided a strand or thread-like tear-off handle (14) extending transversely to the film edge (5b).
  9. Film cover according to claim 8, characterized in that the tear-off handle (14) extends over the entire width of the envelope body (3).
  10. Film cover according to claims 8 or 9, characterized in that the tear-off handle (14) is formed by a weld seam of the envelope body (3).
EP88104286A 1987-03-25 1988-03-17 Foil cover for objects Expired - Lifetime EP0283940B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88104286T ATE85291T1 (en) 1987-03-25 1988-03-17 FOIL WRAPPING FOR OBJECTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH113187 1987-03-25
CH1131/87 1987-03-25

Publications (3)

Publication Number Publication Date
EP0283940A2 EP0283940A2 (en) 1988-09-28
EP0283940A3 EP0283940A3 (en) 1990-03-21
EP0283940B1 true EP0283940B1 (en) 1993-02-03

Family

ID=4203223

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88104286A Expired - Lifetime EP0283940B1 (en) 1987-03-25 1988-03-17 Foil cover for objects

Country Status (5)

Country Link
US (1) US4903843A (en)
EP (1) EP0283940B1 (en)
JP (1) JPS63258775A (en)
AT (1) ATE85291T1 (en)
DE (2) DE8704836U1 (en)

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FR2686325B1 (en) * 1992-01-22 1995-04-21 Bel Fromageries FOOD PRODUCTS PACKAGING BOX, PARTICULARLY PROCESSED CHEESE PORTIONS.
US5893460A (en) * 1992-06-25 1999-04-13 Halpak Plastics, Inc. Shrinkable tubing with integral tear strip
US5984088A (en) * 1993-06-11 1999-11-16 3M Innovative Properties Company Easy open package and method of making same
US5620095A (en) * 1993-06-11 1997-04-15 Minnesota Mining And Manufacturing Company Orthopedic casting material and hermetic package
US5813538A (en) * 1994-05-20 1998-09-29 3-Strikes Custom Design Promotional package
DE19750429A1 (en) * 1997-11-14 1999-05-20 Gerro Plast Gmbh Bottle or container with removable sleeve
DE19948894C1 (en) * 1999-10-11 2000-07-06 Bellaplast Holding Ag Altstaet Cover for food container with tear-off tab concealing e.g. spoon in recess or vent, is made in anisotropic pre-orientated sheet, with preferential tearing parallel to direction of pulling-off
US6777655B2 (en) * 2002-04-09 2004-08-17 Nestec S.A. Uniform microwave heating of food in a container
US20040118904A1 (en) * 2002-12-19 2004-06-24 Sonoco Development, Inc. Composite container having a hermetically sealed polymeric sleeve
EP1367004A1 (en) * 2002-12-20 2003-12-03 Alcan Technology &amp; Management Ltd. Heat shrinkable film package for at least two articles
GB0705048D0 (en) * 2007-03-16 2007-04-25 Wildbird J C Foods Ltd Bird food wrapper
ES2378933B1 (en) * 2010-03-30 2013-02-25 Decotec Printing S.A.U. DISPENSING DEVICE FOR PAPER COILS.
WO2012024218A1 (en) 2010-08-16 2012-02-23 Kraft Foods Global Brands Llc Perforated shrink wrap sleeves and containers
DE102016102087A1 (en) * 2016-02-05 2017-08-10 B. Braun Avitum Ag Filter module Packing unit
US10189618B2 (en) * 2016-04-15 2019-01-29 Colgate-Palmolive Company Container apparatus
WO2020185230A1 (en) 2019-03-13 2020-09-17 Velez Gustavo Adolfo Paint dispensing roller assembly
DE202020102756U1 (en) * 2020-05-15 2020-05-27 Quickpack Haushalt + Hygiene Gmbh Banderole for wrapping a film roll

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Also Published As

Publication number Publication date
EP0283940A2 (en) 1988-09-28
ATE85291T1 (en) 1993-02-15
DE8704836U1 (en) 1987-06-11
DE3877991D1 (en) 1993-03-18
EP0283940A3 (en) 1990-03-21
JPS63258775A (en) 1988-10-26
US4903843A (en) 1990-02-27

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