EP2784003B1 - Plastic film bag - Google Patents

Plastic film bag Download PDF

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Publication number
EP2784003B1
EP2784003B1 EP14000894.7A EP14000894A EP2784003B1 EP 2784003 B1 EP2784003 B1 EP 2784003B1 EP 14000894 A EP14000894 A EP 14000894A EP 2784003 B1 EP2784003 B1 EP 2784003B1
Authority
EP
European Patent Office
Prior art keywords
film
cover flap
bag according
removal opening
bag
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.)
Not-in-force
Application number
EP14000894.7A
Other languages
German (de)
French (fr)
Other versions
EP2784003A1 (en
Inventor
Thomas Rethschulte
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.)
Bischof and Klein SE and Co KG
Original Assignee
Bischof and Klein SE and Co KG
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 Bischof and Klein SE and Co KG filed Critical Bischof and Klein SE and Co KG
Publication of EP2784003A1 publication Critical patent/EP2784003A1/en
Application granted granted Critical
Publication of EP2784003B1 publication Critical patent/EP2784003B1/en
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Anticipated expiration legal-status Critical

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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
    • 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
    • B65D2575/00—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
    • B65D2575/52—Details
    • B65D2575/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D2575/586—Opening or contents-removing devices added or incorporated during package manufacture with means for reclosing

Definitions

  • the invention relates to a bag made of plastic film according to the preamble of claim 1.
  • Bags of this type are, in particular, to a large extent for the packaging of relatively large-sized hygiene articles such as toilet paper rolls, diapers, sanitary napkins u. Like. Used, which are often relatively light material and therefore allow large packages.
  • From the EP 0 425 008 A1 is a bag of paper material known to be filled cuboid and the wall material on the top side in a top seam is merged and forms a supernatant to a handle bar.
  • a removal opening is provided there on a transversely to the handle bar front side, are still arranged at the edge to the removal opening stiffeners. The stiffness of the material and the formation of the removal opening with edge stiffeners can not be transferred to a package made of plastic film with a thin wall thickness.
  • the object of the invention is to provide a bag made of thin plastic film, which is inexpensive to manufacture and with conventional mechanical means and for the storage and continued partial emptying of such a bag provides a coverable removal opening.
  • this object is achieved by the preamble of claim 1, starting by the characterizing part of claim 1.
  • This solution is based on a predetermined storage position an overhead top weld, which is already conventional in bags with an overhead handle bar and is readily provided in other bags in the context of common manufacturing techniques.
  • a film projection is already given with a previously known handle, which is usable for a cover flap. It is understood, however, that even if a handle bar is not provided, a film projection beyond the top seam outside of the filling space of the package can be provided independently of a handle bar.
  • the film projection can then form a cover flap for the removal opening as a whole.
  • a weakening line preferably a perforation line
  • the size of the cover flap can be suitably dimensioned so that it projects beyond the removal opening at several or all sides and then rests in edge strip areas on the edge of the removal opening.
  • a support supports the cover flap on the plastic film on the edge of the filling space and holds it with adhesive and frictional engagement on the edge of the film Medraumwandung.
  • the top seam forms the approach to a solid connection between the film surrounding the removal opening and the cover flap, on which the cover flap remains movable in the manner of a film hinge.
  • a smaller, not (multi-sided) over the removal opening projecting cover flap can be kept in the covering by a obtained with the opening of the removal opening foil lug, by a toothed edge shape of the removal opening or by adhesive strips in the covering position.
  • a film overhang may have a folded shape to reduce its dimension prior to use as a cover flap.
  • the folded shape is readily obtained when the film projection is already given with a handle bar, which is led out laterally on the bag over a narrower, usually centrally located, Griffloch Scheme, which then double-layered with a fold edge on the top of the top seam and after tearing open a cover flap from the originally double-layered handle strip is stretched flat over the removal opening.
  • Plastic films of this type are generally produced as a monofilm of polyethylene or as a layered film with a sealable polyethylene inner layer, on the processability of which the machine production lines are set wide.
  • a single layer foil may be used.
  • there are also "monofilm" use which are coextruded at a total thickness of less than 50 microns in layers of different (polyethylene) compositions to the high stresses of the bag when filling in short work cycles, when spreading with gripping arms or when pressing heavily compressed contents to catch.
  • a film made of only one base material, such as polyethylene has the advantage that it can be sorted and recycled according to type.
  • Fig. 1 and 2 is denoted by 1 a bag of thin plastic film as a whole, but only shown with its upper area of interest here, for relatively light but bulky cargo such as toiletries - toilet paper, Diapers, sanitary napkins - etc. is provided and is contoured by the house by the cutting of the film, the course of sealing seams and side or bottom seams to match the content of a well approximated cuboid shape.
  • the parallelepiped shape meets the practical requirements for space utilization during transport, storage and sales presentation and can be made of plastic film with proven mechanical operations well.
  • This also includes the formation of a handle bar 2 with a handle hole 3, which is formed here as a longitudinal strip at the top of the bag from the double-ply folded film and divided by a top seam 4 of an underlying filling chamber 5.
  • such a bag also includes a removal opening 6, which is given for example by a three-sided circumferential tear line 7, 8 and 9 and a rectangular opening, otherwise possibly also a rounded opening largely bounded:
  • a removal opening 6 is given for example by a three-sided circumferential tear line 7, 8 and 9 and a rectangular opening, otherwise possibly also a rounded opening largely bounded:
  • the tear lines terminate at a distance from one another and leave a film connection 10, at which a foil lug 11 remains hinged to the wall foil of the bag 1.
  • Such a foil lug 11 is regularly found in bags with a removal opening according to the prior art, to close the removal opening 6, if necessary by folding back the foil lug again.
  • This easy handling With the development of bags to thinner plastic film is not possible because the film is no longer used as a flap for lack of inherent rigidity, but folds, bends together and without any fall in itself and would go down through the removal opening 6.
  • a (larger) deck flap 12 is formed which, as shown in FIG Fig. 2 extends beyond the removal opening 6 with the side lines 7 and 9 up to the Anlenkline the film connection 10 or beyond.
  • the cover flap 12 is removed from a part of the handle strip 2, which has for this purpose easy tear lines of weakness 13, 14.
  • the lines of weakness 13, 14 may be formed safely as a permeable perforation lines, as they do not lead to the bag contents in the filling space 5 and thus have to take into account no high requirements for dust or moisture protection.
  • the weakening lines 13, 14 extend in accordance with the gaze device in FIG Fig. 1 on the front of the handle bar 2, continue their congruence on their back and then close on the back with a course along the top seam 4 to a U-shape, which results in the cover flap 12 by tearing open by hand, which unfolded over the top seam 4 remains connected to the plastic film of the bag 1.
  • For a light one Behind reaching and tearing the weakening lines, in particular at the back "U-yoke" as connection of the weakening lines 13,14 along the top seam 8, as well as long cut lines with short residual connections between or at the corners are executed.
  • the weakening lines 13, 14 could also be brought together on the front side along the top seam 8 and end on the rear side of the grip strip 2 in front of the top seam 8.
  • the cover flap 12 requires for a given size of the removal opening a length that must be taken out of the height of the double-layered handle 2.
  • the cover flap 12 should project beyond the removal opening 6 with its length.
  • cover flap 12- if possible on both sides-projects beyond the tear-open lines 7 and 9 and covers the edge region of the film of the bag around the removal opening 6.
  • a cover is achieved, even if the film curls or creases to some extent.
  • cover flap 12 for fixing and securing position still with adhesive strips (not shown) can be equipped, as they already found in conventional foil flags.
  • the cover flap with its protrusion also opens up the possibility of providing adhesive dots or adhesive lines with a detachable and adhesive (permanent) adhesive at the edge of the bearing surfaces. Such provided with an adhesive edge areas may be arranged on the inside before tearing the handle bar when the handle bar from the perspective of the Fig. 1 from the front to tear and hinged at the back.
  • the cover flap 12 may be shorter than the removal opening 6 and may close the removal opening 6 only together with the (folded-back) foil lug 11.
  • the cover flap 12 can be placed over the (folded) Fotienfahne 11 and fixed on this - such as adhesive edges or adhesive strips - but it can also be placed over the removal opening and thereby supported with an optionally larger width by edge-side support before the Foil lug 11 folded back and placed or glued on.
  • the handle bar 2 quite common practice - from a simple double layer of thin-walled plastic film, for example, a thickness of only 30 or 40? m formed.
  • polyethylene comes into consideration because of its low sealing temperature, which is cheap to dispose of, sorted and easy to recycle.
  • Such a thin and flexible material which has been further developed in the course of material development to ever higher strengths, especially as a "tight" wrapping the contents provide a total tight to handle packaging, including the continuous handle bar contributes to this, as in Fig. 2 shown, is torn open. Then arises in the handle bar according to Fig.
  • This can be countered in a simple manner that, for example, in the handle strip a reinforcing strip of any material, but preferably also made of a polyethylene material for unmixed disposal, loosely inserted or that with the top seam 4, a reinforcing strip is sealed from a material that has at least sealable layers on its surfaces.
  • FIG. 3 By way of illustration, in simplified schematic representation in FIG Fig. 3 First, a section through the handle bar 2 and the adjacent film areas between the lines of weakness 13 and 14 of a bag 1 shown in ready-to-ship closed form, as he already said on the basis of Fig. 1 and 2 has been described.
  • Fig. 4 shows the unilaterally to the top seam 4 (and along the line of weakness 13, 14) torn and folded over to the cover flap 12 handle bar.
  • a bag 21 is shown made of plastic film, in which a handle 2 is contoured again from a longitudinal fold of the film by means of a top seam 4, however, in the top seam 4, a sealable reinforcing strip 22, for example, from a stronger polyethylene material, integrated, the The handle bar stiffened and reinforced when closed.
  • the reinforcing strip 22 remains after formation of the cover flap 12 by tearing the handle bar 2 with the film strip from one side and after folding over to the other side and then closes the gap 15 Fig. 2 not only for the visual appearance, but also by permanent stiffening of the handle when handling after opening. This is in Fig. 6 shown.
  • reinforcing strip 22 is found, for example, in a folded and thus double-layered longitudinal strip made of film, for example from the same film as that of the remaining bag 1, used as reinforcing strip 23 in a bag 24 according to FIG Fig. 7 , Again, then after tearing open the cover flap 12 a gap 15 according to Fig. 2 avoided and achieved a stiffening for better handling after opening.
  • a multi-layered handle designed for improved rigidity can also be achieved by folding the foil into a concertina-like zig-zag cross section in the handle strip area or by rolling it up several times in the same direction.
  • the tear-out cover flap according to the present illustrations then does not need all To detect layers of the handle bar, but can, if two layers of a (narrow) handle strip for a cover flap 12 are too tight, provide for expansion possibilities.

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

Description

Die Erfindung betrifft einen Beutel aus Kunststofffolie nach dem Oberbegriff des Anspruchs 1. Beutel dieser Art werden insbesondere in großem Umfang zur Verpackung von relativ großstückigen Hygieneartikeln wie Toilettenpapierrollen, Windeln, Damenbinden u. dgl. eingesetzt, die vielfach vom Material her relativ leicht sind und schon von daher große Packungen erlauben. Diese Leichtgewichtigkeit wie auch eine allgemeine Entwicklung zu immer dünneren Folien aus relativ festem Kunststoffmaterial infolge eines Trends zu Materialersparnis, Abfall- und Gewichtsverringerung führt zu Folien, die zwar hinreichend zugfest, aber nicht mehr biegesteif sind. Bei Vorratsbeuteln, die in herkömmlicher Weise eine Entnahmeöffnung vorsehen, welche einfach längs einer Aufreißlinie im Kopfbereich ohne besonderen Aufwand ermöglicht ist und bei der herkömmlich innerhalb der Aufreißlinie ein Lappen als Deckklappe gebildet wird, ist die Funktion der Deckklappe von der Eigensteifigkeit der Folie abhängig. Diese ist nur dann gegeben, wenn sich die Deckklappe in der Entnahmeöffnung hält, wenn sie auf irgendeinem Randbereich eine Abstützung findet. Die Entwicklung zu dünneren Kunststofffolien für derartige Beutel führt jedoch zu derart flexiblen und nachgiebigen Aufreißfahnen, dass diese durch die Entnahmeöffnung nach innen durchfallen und keine Abdeckung der Entnahmeöffnung mehr bieten.The invention relates to a bag made of plastic film according to the preamble of claim 1. Bags of this type are, in particular, to a large extent for the packaging of relatively large-sized hygiene articles such as toilet paper rolls, diapers, sanitary napkins u. Like. Used, which are often relatively light material and therefore allow large packages. This lightweightness as well as a general trend towards ever thinner foils of relatively strong plastic material as a result of a trend towards material savings, waste and weight reduction results in films which, while sufficiently tensile, are no longer rigid. In storage bags that provide a removal opening in a conventional manner, which is easily along a tear line in the head area possible without any special effort and conventionally within the tear line a flap is formed as a cover flap, the function of the cover flap of the inherent stiffness of the film is dependent. This is only possible if the cover flap holds in the removal opening, if it finds a support on any edge area. The development of thinner plastic films for such bags, however, leads to such flexible and resilient tearing tabs that they fall through the removal opening to the inside and no longer offer coverage of the removal opening.

Aus der EP 0 425 008 A1 ist ein Beutel aus Papiermaterial bekannt, der quaderförmig zu befüllen ist und dessen Wandmaterial oberseitig in einer Kopfnaht zusammengeführt ist und darüber einen Überstand zu einer Griffleiste bildet. Eine Entnahmeöffnung ist dort an einer quer zur Griffleiste stehenden Stirnseite vorgesehen, an der randseitig zur Entnahmeöffnung noch Versteifungen angeordnet sind. Die Steifigkeit des Materials und die Ausbildung der Entnahmeöffnung mit Randversteifungen lassen sich nicht auf eine Verpackung aus Kunststofffolie mit einer dünnen Wandstärke übertragen.From the EP 0 425 008 A1 is a bag of paper material known to be filled cuboid and the wall material on the top side in a top seam is merged and forms a supernatant to a handle bar. A removal opening is provided there on a transversely to the handle bar front side, are still arranged at the edge to the removal opening stiffeners. The stiffness of the material and the formation of the removal opening with edge stiffeners can not be transferred to a package made of plastic film with a thin wall thickness.

Aufgabe der Erfindung ist es, einen Beutel aus dünner Kunststofffolie zu schaffen, der preisgünstig und mit herkömmlicher maschinentechnischen Mitteln zu fertigen ist und für die Aufbewahrung und fortgesetzte Teilentleerung eines solchen Beutels eine abdeckbare Entnahmeöffnung bietet.The object of the invention is to provide a bag made of thin plastic film, which is inexpensive to manufacture and with conventional mechanical means and for the storage and continued partial emptying of such a bag provides a coverable removal opening.

Gemäß der Erfindung wird diese Aufgabe von dem Oberbegriff des Anspruchs 1 ausgehend durch das Kennzeichen des Anspruchs 1 gelöst. Diese Lösung setzt bezogen auf eine vorgegebene Aufbewahrungsstellung eine obenliegende Kopfnaht voraus, die etwa bei Beuteln mit einer obenliegenden Griffleiste bereits herkömmlich üblich ist und bei sonstigen Beuteln im Rahmen geläufiger Fertigungstechniken ohne weiteres vorzusehen ist. Grundsätzlich ist mit einer vorbekannten Griffleiste bereits ein Folienüberstand gegeben, der für eine Deckklappe nutzbar ist. Es versteht sich allerdings, dass auch dann, wenn eine Griffleiste nicht vorgesehen ist, ein Folienüberstand über die Kopfnaht hinaus außerhalb des Füllraums der Verpackung unabhängig von einer Griffleiste bereitgestellt werden kann. Der Folienüberstand kann dann als Ganzes eine Deckklappe für die Entnahmeöffnung bilden. Es kann aber auch mit Hilfe einer Schwächungslinie, vorzugsweise einer Perforationslinie, ein Teil des Folienüberstandes auszureißen sein, um dann eine Deckklappe für die Entnahmeöffnung vorgegebener Größe zu bilden.According to the invention, this object is achieved by the preamble of claim 1, starting by the characterizing part of claim 1. This solution is based on a predetermined storage position an overhead top weld, which is already conventional in bags with an overhead handle bar and is readily provided in other bags in the context of common manufacturing techniques. Basically, a film projection is already given with a previously known handle, which is usable for a cover flap. It is understood, however, that even if a handle bar is not provided, a film projection beyond the top seam outside of the filling space of the package can be provided independently of a handle bar. The film projection can then form a cover flap for the removal opening as a whole. However, it is also possible with the aid of a weakening line, preferably a perforation line, to tear off part of the film overhang, in order then to form a cover flap for the removal opening of predetermined size.

Die Größe der Deckklappe kann zweckmäßig so bemessen werden, dass diese über die Entnahmeöffnung an mehreren bzw. allen Seiten übersteht und dann in Randstreifenbereichen auf dem Rand der Entnahmeöffnung aufliegt. Eine solche Auflage stützt die Deckklappe auf der Kunststofffolie über dem Füllraum randseitig ab und hält sie auch mit adhäsiver und reibschlüssiger Anlage auf dem Folienrand der Füllraumwandung. Die Kopfnaht bildet dabei den Ansatz zu einer festen Verbindung zwischen der die Entnahmeöffnung umgrenzenden Folie und der Deckklappe, an der die Deckklappe nach Art eines Folienscharniers beweglich bleibt. Auch eine kleinere, nicht (mehrseitig) über die Entnahmeöffnung überstehende Deckklappe kann in der Abdeckstellung durch eine mit dem Öffnen der Entnahmeöffnung erhaltene Folienfahne, durch eine verzahnte Randform der Entnahmeöffnung oder durch Klebestreifen in der Abdeckstellung gehalten werden.The size of the cover flap can be suitably dimensioned so that it projects beyond the removal opening at several or all sides and then rests in edge strip areas on the edge of the removal opening. Such a support supports the cover flap on the plastic film on the edge of the filling space and holds it with adhesive and frictional engagement on the edge of the film Füllraumwandung. The top seam forms the approach to a solid connection between the film surrounding the removal opening and the cover flap, on which the cover flap remains movable in the manner of a film hinge. Also, a smaller, not (multi-sided) over the removal opening projecting cover flap can be kept in the covering by a obtained with the opening of the removal opening foil lug, by a toothed edge shape of the removal opening or by adhesive strips in the covering position.

Ein Folienüberstand kann eine gefaltete Form aufweisen, um dessen Abmessung vor dem Einsatz als Deckklappe zu verkleinern. Die gefaltete Form ergibt sich ohne weiteres dann, wenn der Folienüberstand bereits mit einer Griffleiste vorgegeben ist, die oben am Beutel seitlich über einen engeren, meist mittig angeordneten, Grifflochbereich hinausgeführt ist, die dann doppellagig mit einer Faltkante an der Oberseite von der Kopfnaht übersteht und nach dem Aufreißen einer Deckklappe aus der ursprünglich doppellagigen Griffleiste flachgestreckt über die Entnahmeöffnung zu legen ist.A film overhang may have a folded shape to reduce its dimension prior to use as a cover flap. The folded shape is readily obtained when the film projection is already given with a handle bar, which is led out laterally on the bag over a narrower, usually centrally located, Grifflochbereich, which then double-layered with a fold edge on the top of the top seam and after tearing open a cover flap from the originally double-layered handle strip is stretched flat over the removal opening.

Kunststofffolien dieser Art werden allgemein als Monofolie aus Polyethylen oder als Schichtfolie mit siegelbarer Polyethylen-Innenschicht gefertigt, auf dessen Verarbeitbarkeit die maschinellen Fertigungsstraßen breithin eingestellt sind. Bei Beuteln für den Einsatz von Hygieneartikeln, die keine besonderen Anforderungen an die Dampf-, Gas- oder Feuchtigkeitsdichtigkeit stellen, kann eine einschichtige Folie verwendet werden. Es finden aber auch "Monofolien" Verwendung, die bei einer Gesamtstärke von weniger als 50 ?m noch in Schichten verschiedener (Polyethylen-) Zusammensetzungen coextrudiert sind, um die hohen Beanspruchungen der Beutel beim Befüllen in kurzen Arbeitstakten, beim Aufspreizen mit Greifarmen oder beim Einpressen stark komprimierten Füllguts aufzufangen. Eine solche Folie aus nur einem Grundmaterial wie etwa Polyethylen hat überdies den Vorteil, dass sie sortenrein zu recyceln und wiederzuverwerten ist.Plastic films of this type are generally produced as a monofilm of polyethylene or as a layered film with a sealable polyethylene inner layer, on the processability of which the machine production lines are set wide. For sachets for the use of sanitary articles which do not have any particular requirements for the vapor, gas or moisture impermeability, a single layer foil may be used. But there are also "monofilm" use, which are coextruded at a total thickness of less than 50 microns in layers of different (polyethylene) compositions to the high stresses of the bag when filling in short work cycles, when spreading with gripping arms or when pressing heavily compressed contents to catch. Moreover, such a film made of only one base material, such as polyethylene, has the advantage that it can be sorted and recycled according to type.

Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden nachfolgend näher beschrieben. In der Zeichnungen zeigen in schematischer Darstellung:

  • Fig. 1 Beutel aus Kunststofffolie gemäß der Erfindung mit offener Entnahme öffnung, Teil-Schrägansicht
  • Fig. 2 Beutel nach Fig. 1 mit geschlossener Deckklappe
  • Fig. 3, 5 Querschnitte durch den Kopfbereich von
  • und 7 jeweils einer Ausführungsform eines Beutels aus Kunststofffolie im geschlossenen Zustand
  • Fig. 5, 6 Querschnitte zu den Beuteln gemäß Fig. 3, 5 bzw. 7 nach Ausbildung
  • und 8 der Deckklappe.
Embodiments of the invention are illustrated in the drawings and will be described in more detail below. In the drawings show in a schematic representation:
  • Fig. 1 Bag of plastic film according to the invention with open removal opening, partial oblique view
  • Fig. 2 Bag after Fig. 1 with closed cover flap
  • Fig. 3, 5 Cross sections through the head area of
  • and Fig. 7 each show an embodiment of a bag of plastic film in the closed state
  • Fig. 5, 6 Cross sections to the bags according to Fig. 3, 5 or 7 after training
  • and 8 of the cover flap.

In Fig. 1 und 2 ist mit 1 ein Beutel aus dünner Kunststofffolie insgesamt bezeichnet, allerdings nur mit seinem hier interessierenden oberen Bereich dargestellt, der für relativ leichte aber großvolumige Stückgüter wie Hygieneartikel - Toilettenpapier, Windeln, Damenbinden - etc. vorgesehen ist und von Haus aus durch den Zuschnitt der Folie, dem Verlauf von Siegelnähten und von Seiten- oder Bodennähten passend zum Inhalt auf eine möglichst gut angenäherte Quaderform konturiert wird. Die Quaderform entspricht den praktischen Forderungen nach einer Raumausnutzung bei Transport, Lagerung und Verkaufspräsentation und lässt sich aus Kunststofffolie mit erprobten maschinellen Arbeitsgängen gut herstellen. Dazu gehört auch die Ausbildung einer Griffleiste 2 mit einem Griffloch 3, die hier als Längsstreifen an der Oberseite des Beutels aus der doppellagig gefalteten Folie gebildet und durch eine Kopfnaht 4 von einem darunterliegenden Füllraum 5 abgeteilt ist.In Fig. 1 and 2 is denoted by 1 a bag of thin plastic film as a whole, but only shown with its upper area of interest here, for relatively light but bulky cargo such as toiletries - toilet paper, Diapers, sanitary napkins - etc. is provided and is contoured by the house by the cutting of the film, the course of sealing seams and side or bottom seams to match the content of a well approximated cuboid shape. The parallelepiped shape meets the practical requirements for space utilization during transport, storage and sales presentation and can be made of plastic film with proven mechanical operations well. This also includes the formation of a handle bar 2 with a handle hole 3, which is formed here as a longitudinal strip at the top of the bag from the double-ply folded film and divided by a top seam 4 of an underlying filling chamber 5.

Zur grundsätzlich vorbekannten Ausführungsform eines solchen Beutels gehört auch eine Entnahmeöffnung 6, die beispielsweise durch eine dreiseitig umlaufende Aufreißlinie 7, 8 und 9 vorgegeben wird und eine rechteckige Öffnung, sonst ggf. auch eine gerundete Öffnung großenteils umgrenzt: Im vorliegenden Fall kommt auch eine geschlossene Umgrenzung der Entnahmeöffnung 6 durch Aufreißlinien in Betracht, so dass der zuvor die Entnahmeöffnung schließende Folienbereich restlos abreißbar und entfernbar ist. Dargestellt ist allerdings hier noch eine Ausgestaltung, bei der die Aufreißlinien in einem Abstand zueinander enden und eine Folienverbindung 10 belassen, an der eine Folienfahne 11 zur Wandfolie des Beutels 1 angelenkt bleibt.For basically known embodiment of such a bag also includes a removal opening 6, which is given for example by a three-sided circumferential tear line 7, 8 and 9 and a rectangular opening, otherwise possibly also a rounded opening largely bounded: In the present case also comes a closed boundary the removal opening 6 by tearing lines into consideration, so that the previously closing the removal opening foil area is completely torn off and removable. Shown here, however, is an embodiment in which the tear lines terminate at a distance from one another and leave a film connection 10, at which a foil lug 11 remains hinged to the wall foil of the bag 1.

Eine solche Folienfahne 11 ist bei Beuteln mit einer Entnahmeöffnung nach dem Stand der Technik regelmäßig anzutreffen, um die Entnahmeöffnung 6 bedarfsweise durch Rückklappen der Folienfahne wieder zu verschließen. Diese einfache Handhabung ist allerdings mit der Entwicklung von Beuteln zu dünnerer Kunststofffolie nicht möglich, da die Folie mangels Eigensteifigkeit nicht mehr als Klappe einzusetzen ist, sondern sich zusammenfaltet, zusammenbiegt und haltlos in sich zusammenfällt und durch die Entnahmeöffnung 6 niedergehen würde. In der Praxis ist es aber nach wie vor erwünscht, eine einmal angebrochene bzw. mit einer Entnahmeöffnung versehene Verpackung zumindest grobhin zu verschließen, so dass nicht ohne weiteres Staub, Schmutz, Feuchtigkeit oder irgendetwas an sonstigen Gegenständen hinein- oder herausgelangt.Such a foil lug 11 is regularly found in bags with a removal opening according to the prior art, to close the removal opening 6, if necessary by folding back the foil lug again. This easy handling However, with the development of bags to thinner plastic film is not possible because the film is no longer used as a flap for lack of inherent rigidity, but folds, bends together and without any fall in itself and would go down through the removal opening 6. In practice, however, it is still desirable to at least roughly close a packaging once it has been opened or provided with a removal opening, so that dust, dirt, moisture or anything else does not easily get in or out of other objects.

Dieserhalb wird gemäß der Erfindung eine (größere) Deckklappe 12 gebildet, die sich gemäß der Darstellung in Fig. 2 über die Entnahmeöffnung 6 mit den Seitenlinien 7 und 9 bis zu der Anlenklinie der Folienverbindung 10 oder über diese hinaus erstreckt.Therefore, according to the invention, a (larger) deck flap 12 is formed which, as shown in FIG Fig. 2 extends beyond the removal opening 6 with the side lines 7 and 9 up to the Anlenklinie the film connection 10 or beyond.

Die Deckklappe 12 ist einem Teil der Griffleiste 2 entnommen, die hierfür zum leichten Aufreißen Schwächungslinien 13, 14 aufweist. Die Schwächungslinien 13, 14 können unbedenklich als durchlässige Perforationslinien ausgebildet sein, da sie nicht zum Beutelinhalt im Füllraum 5 führen und insofern keine hohen Anforderungen an Staub- oder Feuchtigkeitsschutz zu berücksichtigen haben. Die Schwächungslinien 13, 14 verlaufen gemäß Blickvorrichtung in Fig. 1 auf der Vorderseite der Griffleiste 2, setzen sich auf ihrer Rückseite deckungsgleich fort und schließen sich dann auf der Rückseite mit einem Verlauf längs der Kopfnaht 4 zu einer U-Form, die durch Aufreißen von Hand die Deckklappe 12 ergibt, die über die Kopfnaht 4 ausgeklappt mit der Kunststofffolie des Beutels 1 verbunden bleibt. Für ein leichtes Hintergreifen und Aufreißen können die Schwächungslinien, insbesondere am rückseitigen "U-Joch" als Verbindung der Schwächungslinien 13,14 längs der Kopfnaht 8, auch als lange Schnittlinien mit kurzen Restverbindungen dazwischen bzw. an den Ecken ausgeführt werden.The cover flap 12 is removed from a part of the handle strip 2, which has for this purpose easy tear lines of weakness 13, 14. The lines of weakness 13, 14 may be formed safely as a permeable perforation lines, as they do not lead to the bag contents in the filling space 5 and thus have to take into account no high requirements for dust or moisture protection. The weakening lines 13, 14 extend in accordance with the gaze device in FIG Fig. 1 on the front of the handle bar 2, continue their congruence on their back and then close on the back with a course along the top seam 4 to a U-shape, which results in the cover flap 12 by tearing open by hand, which unfolded over the top seam 4 remains connected to the plastic film of the bag 1. For a light one Behind reaching and tearing the weakening lines, in particular at the back "U-yoke" as connection of the weakening lines 13,14 along the top seam 8, as well as long cut lines with short residual connections between or at the corners are executed.

Es versteht sich in gleicher Weise, dass alternativ die Schwächungslinien 13, 14 auch auf der Vorderseite längs der Kopfnaht 8 zusammengeführt sein könnten und auf der Rückseite der Griffleiste 2 vor der Kopfnaht 8 enden.It goes without saying that, alternatively, the weakening lines 13, 14 could also be brought together on the front side along the top seam 8 and end on the rear side of the grip strip 2 in front of the top seam 8.

Die Deckklappe 12 benötigt für eine vorgegebene Größe der Entnahmeöffnung eine Länge, die aus der Höhe der doppellagigen Griffleiste 2 herausgeholt werden muss. Vorzugsweise soll die Deckklappe 12 mit ihrer Länge über die Entnahmeöffnung 6 hinausragen.The cover flap 12 requires for a given size of the removal opening a length that must be taken out of the height of the double-layered handle 2. Preferably, the cover flap 12 should project beyond the removal opening 6 with its length.

Besonders vorteilhaft ist, dass die Deckklappe 12 - möglichst beiderseits - über die Aufreißlinien 7 und 9 hinaus steht und den Randbereich der Folie des Beutels um die Entnahmeöffnung 6 überdeckt. Damit wird eine Abdeckung erzielt, auch wenn sich die Folie in einem gewissen Maße wellt oder knittert. Durch die randseitige Auflage wird aber auch eine Abstützung und Abdichtung sowie eine randseitige Aufhängung der Deckklappe 12 erzielt, damit diese nicht in die Entnahmeöffnung 6 hineinfällt.It is particularly advantageous that the cover flap 12-if possible on both sides-projects beyond the tear-open lines 7 and 9 and covers the edge region of the film of the bag around the removal opening 6. Thus, a cover is achieved, even if the film curls or creases to some extent. By the edge-side support but also a support and sealing and an edge-side suspension of the cover flap 12 is achieved so that it does not fall into the removal opening 6.

Allerdings versteht es sich auch, dass die Deckklappe 12 zu Fixierung und Lagesicherung noch mit Klebestreifen (nicht dargestellt) ausgestattet werden kann, wie sie schon bei herkömmlichen Folienfahnen zu finden waren. Darüber hinaus eröffnet die Deckklappe mit ihrem Überstand auch die Möglichkeit, randseitig an Auflageflächen Klebepunkte oder Klebelinien mit einem lösbaren und rückklebenden (Dauer-) Kleber vorzusehen. Derartige mit einem Kleber versehene Randbereiche können vor dem Aufreißen der Griffleiste innenseitig angeordnet sein, wenn die Griffleiste aus der Sicht der Fig. 1 von der Vorderseite aufzureißen und an der Rückseite angelenkt ist.However, it is also understood that the cover flap 12 for fixing and securing position still with adhesive strips (not shown) can be equipped, as they already found in conventional foil flags. In addition, the cover flap with its protrusion also opens up the possibility of providing adhesive dots or adhesive lines with a detachable and adhesive (permanent) adhesive at the edge of the bearing surfaces. Such provided with an adhesive edge areas may be arranged on the inside before tearing the handle bar when the handle bar from the perspective of the Fig. 1 from the front to tear and hinged at the back.

In einer nicht dargestellten Abwandlung zu der Ausführungsform nach Fig. 1 und 2 kann die Deckklappe 12 kürzer als die Entnahmeöffnung 6 ausgebildet sein und die Entnahmeöffnung 6 nur zusammen mit der (zurückgeklappten) Folienfahne 11 verschließen. Eine für einen bequemen Zugang gewünschte Länge der Entnahmeöffnung und eine materialsparend schmale Griffleiste 2 können hierzu Anlass geben, wobei das Rückklappen der Folienfahne 11 allerdings auch vorteilhaft für ein "geschlossenes" Erscheinungsbild ist. Die Deckklappe 12 kann über die (zurückgeklappte) Fotienfahne 11 gelegt und auf dieser befestigt werden - etwa durch Kleberänder oder Klebestreifen -, sie kann aber auch zuerst über die Entnahmeöffnung gelegt werden und sich dabei mit einer gegebenenfalls größeren Breite durch randseitige Auflage abstützen, bevor die Folienfahne 11 zurückgeklappt und aufgelegt oder auch aufgeklebt wird.In a modification, not shown, to the embodiment according to Fig. 1 and 2 For example, the cover flap 12 may be shorter than the removal opening 6 and may close the removal opening 6 only together with the (folded-back) foil lug 11. A desired for a comfortable access length of the removal opening and a material-saving narrow handle 2 can give this occasion, with the folding back of the film flag 11, however, is also advantageous for a "closed" appearance. The cover flap 12 can be placed over the (folded) Fotienfahne 11 and fixed on this - such as adhesive edges or adhesive strips - but it can also be placed over the removal opening and thereby supported with an optionally larger width by edge-side support before the Foil lug 11 folded back and placed or glued on.

Bei der in Fig. 1 und 2 dargestellten Ausführungsform eines Beutels 1 ist die Griffleiste 2 - durchaus praxisüblich - aus einer einfachen Doppellage der dünnwandigen Kunststofffolie von beispielsweise einer Dicke von nur 30 oder 40 ?m gebildet. Als Material kommt dabei insbesondere Polyethylen wegen seiner niederen Siegeltemperatur in Betracht, das günstig verfügbar, sortenrein zu entsorgen und gut wiederzuverwerten ist. Ein solches dünnes und flexibles Material, das aber im Zuge der Materialentwicklung zu immer höheren Festigkeiten weiterentwickelt worden ist, vermag insbesondere als "stramme" Umhüllung des Inhalts eine insgesamt fest zu handhabende Verpackung liefern, wozu auch die durchgehende Griffleiste beiträgt, bis diese, wie in Fig. 2 dargestellt, aufgerissen wird. Danach entsteht in der Griffleiste gemäß Fig. 2 eine Lücke 15 zwischen den Perforationslinien 13 und 14, die auch die Formfestigkeit der Verpackung herabsetzt, zumal die Gesamteinheit auch durch Inhaltsentnahme gelockert wird. Dem kann in einfacher Weise dadurch begegnet werden, dass beispielsweise in die Griffleiste ein Verstärkungsstreifen aus beliebigem Material, vorzugsweise aber auch aus einem Polyethylen-Material zur sortenreinen Entsorgung, lose eingeschoben wird oder dass mit der Kopfnaht 4 ein Verstärkungsstreifen aus einem Material eingesiegelt wird, das an seinen Oberflächen zumindest siegelfähige Schichten aufweist.At the in Fig. 1 and 2 illustrated embodiment of a bag 1, the handle bar 2 - quite common practice - from a simple double layer of thin-walled plastic film, for example, a thickness of only 30 or 40? m formed. When In particular, polyethylene comes into consideration because of its low sealing temperature, which is cheap to dispose of, sorted and easy to recycle. Such a thin and flexible material, which has been further developed in the course of material development to ever higher strengths, especially as a "tight" wrapping the contents provide a total tight to handle packaging, including the continuous handle bar contributes to this, as in Fig. 2 shown, is torn open. Then arises in the handle bar according to Fig. 2 a gap 15 between the perforation lines 13 and 14, which also reduces the dimensional stability of the packaging, especially since the entire unit is also loosened by content removal. This can be countered in a simple manner that, for example, in the handle strip a reinforcing strip of any material, but preferably also made of a polyethylene material for unmixed disposal, loosely inserted or that with the top seam 4, a reinforcing strip is sealed from a material that has at least sealable layers on its surfaces.

Zur Veranschaulichung ist in vereinfachter schematischer Darstellung in Fig. 3 zunächst ein Schnitt durch die Griffleiste 2 und die angrenzenden Folienbereiche zwischen den Schwächungslinien 13 und 14 eines Beutels 1 in versandfertig geschlossener Form dargestellt, wie er schon anhand der Fig. 1 und 2 beschrieben wurde. Fig. 4 zeigt dazu die einseitig zur Kopfnaht 4 (und längs der Schwächungslinie 13, 14) aufgerissene und zur Deckklappe 12 umgelegte Griffleiste.By way of illustration, in simplified schematic representation in FIG Fig. 3 First, a section through the handle bar 2 and the adjacent film areas between the lines of weakness 13 and 14 of a bag 1 shown in ready-to-ship closed form, as he already said on the basis of Fig. 1 and 2 has been described. Fig. 4 shows the unilaterally to the top seam 4 (and along the line of weakness 13, 14) torn and folded over to the cover flap 12 handle bar.

In Fig. 5 ist der entsprechende Bereich eines Beutels 21 aus Kunststofffolie dargestellt, bei dem eine Griffleiste 2 wieder aus einer Längsfalte der Folie mit Hilfe einer Kopfnaht 4 konturiert ist, allerdings ist in die Kopfnaht 4 ein siegelbarer Verstärkungsstreifen 22, beispielsweise aus einem stärkeren Polyethylenmaterial, eingebunden, der die Griffleiste im geschlossenen Zustand versteift und verstärkt. Insbesondere aber bleibt der Verstärkungsstreifen 22 nach Ausbildung der Deckklappe 12 durch Aufreißen der Griffleiste 2 mit dem Folienstreifen von der einen Seite und nach Überklappen zur anderen Seite zurück und schließt dann die Lücke 15 aus Fig. 2 nicht nur für das optische Erscheinungsbild, sondern auch durch bleibende Versteifung der Griffleiste bei der Handhabung nach dem Öffnen. Dies ist in Fig. 6 dargestellt.In Fig. 5 the corresponding area of a bag 21 is shown made of plastic film, in which a handle 2 is contoured again from a longitudinal fold of the film by means of a top seam 4, however, in the top seam 4, a sealable reinforcing strip 22, for example, from a stronger polyethylene material, integrated, the The handle bar stiffened and reinforced when closed. In particular, however, the reinforcing strip 22 remains after formation of the cover flap 12 by tearing the handle bar 2 with the film strip from one side and after folding over to the other side and then closes the gap 15 Fig. 2 not only for the visual appearance, but also by permanent stiffening of the handle when handling after opening. This is in Fig. 6 shown.

Eine Alternative zu dem Verstärkungsstreifen 22 findet sich beispielsweise in einem gefalteten und damit doppellagigen Längsstreifen aus Folie, etwa aus der gleichen Folie wie der des übrigen Beutels 1, verwendet als Verstärkungsstreifen 23 bei einem Beutel 24 gemäß Fig. 7. Auch hier wird dann nach dem Aufreißen der Deckklappe 12 eine Lücke 15 gemäß Fig. 2 vermieden und eine Versteifung zur besseren Handhabung nach dem Öffnen erzielt.An alternative to the reinforcing strip 22 is found, for example, in a folded and thus double-layered longitudinal strip made of film, for example from the same film as that of the remaining bag 1, used as reinforcing strip 23 in a bag 24 according to FIG Fig. 7 , Again, then after tearing open the cover flap 12 a gap 15 according to Fig. 2 avoided and achieved a stiffening for better handling after opening.

Es ist hieraus ersichtlich, dass eine zur verbesserten Steifigkeit mehrlagig ausgebildete Griffleiste auch dadurch erzielt werden kann, dass die Folie im Griffleistenbereich zieharmonikaartig zu einem Zick-Zack-Querschnitt zusammengefaltet oder durch mehrfaches gleichsinniges Umklappen eingerollt sein kann. Die ausreißbare Deckklappe entsprechend den vorliegenden Darstellungen braucht dann nicht alle Lagen der Griffleiste zu erfassen, kann aber dann, wenn zwei Lagen einer (schmalen) Griffleiste für eine Deckklappe 12 zu knapp bemessen sind, für Ausdehnungsmöglichkeiten sorgen.It is apparent from this that a multi-layered handle designed for improved rigidity can also be achieved by folding the foil into a concertina-like zig-zag cross section in the handle strip area or by rolling it up several times in the same direction. The tear-out cover flap according to the present illustrations then does not need all To detect layers of the handle bar, but can, if two layers of a (narrow) handle strip for a cover flap 12 are too tight, provide for expansion possibilities.

Claims (11)

  1. Bag (1) made of thin plastics film, having a wall thickness of preferably less than 50 µm, as packaging for piece goods, in particular hygiene products, having an approximate cuboid shape and an excess length of film in the shape of a longitudinal strip on an upper side of the bag (1), which is folded from the film in a double layer and is separated from a filling chamber (5) lying therebelow by a top seam (4) and in which just below the top seam (4), which is at the top when the bag is in a storage position, a removal opening (6) is provided between the filling chamber (5) and the excess length of film by means of at least one tear line (7, 8, 9), characterised in that the excess length of film forms a cover flap (12) for the removal opening (6), the cover flap (12) being removed from part of a handle strip (2).
  2. Bag according to claim 1, characterised in that the cover flap (12), as part of the excess length of film, is designed to be tearable with the aid of a weakening line (13, 14), the weakening line being recessed on one side along the top seam (4) to form a film hinge.
  3. Bag according to claim 2, characterised in that the weakening line (13, 14) is designed as a perforation line.
  4. Bag according to claim 1, 2 or 3, characterised in that the excess length of film is designed in a multi-layered manner so as to have a peripheral fold which extends at a spacing from the top seam (4), the cover flap (12) extending across a plurality of layers.
  5. Bag according to either claim 3 or claim 4, characterised in that an at least single-layer reinforcement strip is incorporated in the excess length of film (2), which strip is not part of the cover flap.
  6. Bag according to any of claims 1 to 5, characterised in that the removal opening (6) forms a defined surface area and in that the cover flap (12) covers the surface area with overlap on multiple sides.
  7. Bag according claim 6, characterised in that the cover flap (12) is attached to the top seam (4) between two weakening lines (13, 14) extending predominantly perpendicularly from the top seam (4) over a width which spans the removal opening.
  8. Bag according to any of claims 1 to 7, characterised in that the cover flap (12) for opening and reclosing the removal opening (6) has at least one adhesive region applied to the edges.
  9. Bag according to claim 8, characterised in that the adhesive region is designed as an adhesive strip.
  10. Bag according to any of claims 1 to 9, characterised in that the plastics film consists, at least in part, of polyethylene.
  11. Bag according to any of claims 1 to 10, characterised in that the plastics film is a single-layer film.
EP14000894.7A 2013-03-28 2014-03-12 Plastic film bag Not-in-force EP2784003B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201320003039 DE202013003039U1 (en) 2013-03-28 2013-03-28 Pouch made of plastic film

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EP2784003A1 EP2784003A1 (en) 2014-10-01
EP2784003B1 true EP2784003B1 (en) 2016-05-18

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EP14000894.7A Not-in-force EP2784003B1 (en) 2013-03-28 2014-03-12 Plastic film bag

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EP (1) EP2784003B1 (en)
DE (1) DE202013003039U1 (en)
DK (1) DK2784003T3 (en)
PT (1) PT2784003T (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015106355U1 (en) * 2015-11-20 2017-03-03 Bischof + Klein Se & Co. Kg Packaging bag made of plastic film
GB2576580B (en) * 2018-09-20 2021-03-03 Frito Lay Trading Co Gmbh Packaged food

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8923835D0 (en) * 1989-10-23 1989-12-13 Procter & Gamble Package consisting of a paper bag compactly packing compressed flexible articles
DE4224639C2 (en) * 1992-07-25 1997-11-27 Kobusch Folien Gmbh & Co Kg Packaging bag with a handle made of plastic film for hygiene articles, especially diapers
DE4317611A1 (en) * 1993-05-27 1995-01-05 Vp Schickedanz S A Foil tubular bag for holding hygiene articles and process for its manufacture
DE202007010117U1 (en) * 2007-07-20 2008-08-28 Sca Hygiene Products Ab Package for hygiene products

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EP2784003A1 (en) 2014-10-01
PT2784003T (en) 2016-08-18
DE202013003039U1 (en) 2014-07-01

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