EP2455301B1 - Film laminate for producing bag packaging with integrated film handle and method for producing the laminate - Google Patents

Film laminate for producing bag packaging with integrated film handle and method for producing the laminate Download PDF

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Publication number
EP2455301B1
EP2455301B1 EP10191569.2A EP10191569A EP2455301B1 EP 2455301 B1 EP2455301 B1 EP 2455301B1 EP 10191569 A EP10191569 A EP 10191569A EP 2455301 B1 EP2455301 B1 EP 2455301B1
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EP
European Patent Office
Prior art keywords
film
laminate
separating cuts
film laminate
reinforcement strip
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
EP10191569.2A
Other languages
German (de)
French (fr)
Other versions
EP2455301A1 (en
Inventor
Matthias Perick
Markus Wielens
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.)
Nitto Advanced Film Gronau GmbH
Original Assignee
Mondi Consumer Packaging Technologies GmbH
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 Mondi Consumer Packaging Technologies GmbH filed Critical Mondi Consumer Packaging Technologies GmbH
Priority to EP10191569.2A priority Critical patent/EP2455301B1/en
Priority to ES10191569T priority patent/ES2431946T3/en
Priority to US13/294,353 priority patent/US8844246B2/en
Priority to MX2011012157A priority patent/MX2011012157A/en
Priority to CA2758402A priority patent/CA2758402A1/en
Publication of EP2455301A1 publication Critical patent/EP2455301A1/en
Application granted granted Critical
Publication of EP2455301B1 publication Critical patent/EP2455301B1/en
Not-in-force legal-status Critical Current
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
    • B65D75/54—Cards, coupons, or other inserts or accessories
    • B65D75/56—Handles or other suspension means
    • B65D75/566—Hand holes or suspension apertures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/86—Forming integral handles or mounting separate handles
    • B31B70/876—Forming integral handles or mounting separate handles involving application of reinforcement strips or patches; involving reinforcements obtained by folding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B29/00—Packaging of materials presenting special problems
    • B65B29/02—Packaging of substances, e.g. tea, which are intended to be infused in the package
    • B65B29/04—Attaching, or forming and attaching, string handles or tags to tea bags
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1039—Surface deformation only of sandwich or lamina [e.g., embossed panels]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/15—Sheet, web, or layer weakened to permit separation through thickness

Definitions

  • the invention relates to a film laminate from which bag packaging with integrated film handle can be produced in a tubular bag machine.
  • the DE 202009012135 U1 relates to a film laminate and a method of making this laminate from which bag packages are made.
  • VFFS tubular bag machines As a tubular bag machine is referred to in the context of the invention, a packaging machine, which operates according to the so-called VFFS (vertical form fill sealing) method.
  • VFFS tubular bag machines In a flow wrapper operating according to the VFFS principle, the film laminate is formed into a tube and tube sections are filled with product and sealed with sealing seams. Throughout the process, the web forming the tube is moved vertically downwards.
  • VFFS tubular bag machines are primarily used for the packaging of powdered and granulated solids, eg. B. dry food for animals used. They are characterized by high machine speeds and enable economical production and filling of bags for pourable products.
  • Pouches that have been molded and filled in VFFS tubular bag machines may have handle punches in the head area which are inserted in the bagging machine during the VFFS process. Disadvantage of this bag packaging is an often difficult combination of the head side mounted Griffausstanzache with opening aids, eg. B. perforations. Also, the design of a simple removal opening is complicated by head-side Griffausstanzache.
  • pouches are preferably used, which have a handle loop in a side surface formed as a side fold.
  • the handle loop is glued or sealed in the context of the measures known from practice.
  • Such handle designs hinder the processing of the film laminate in a VFFS tubular film machine. In most cases, the machine speed of the tubular bag machine is impaired so much by the application of the film handles that it no longer works economically.
  • prefabricated bags are used, which are individually fed to a filling machine and filled. The production of these prefabricated bags and their filling is, however, much more expensive than the production and filling of bags in VFFS tubular bag machines.
  • the known gusseted bags are prefabricated as a single bag and filled in a separate filling with the packaged goods.
  • the bag wall of the gusseted bags consists of a film laminate which has a printable outer film and a sealable film bonded to the outer film.
  • a reinforcing sheet has been laminated between the sealable foil and the outer foil, which is glued only to the outer foil.
  • the film handle is formed by inserting separating cuts which pass through the outer film and the reinforcing sheet joined to the outer film.
  • the sealable inner foil of the packaging remains intact and seals the interior of the pouch packaging.
  • the grip loop formed by separating cuts merges integrally at its ends into the bag wall.
  • the WO 2008/038308 A1 refers to pouches with integrated handle, which are made of a two-ply foil laminate.
  • the film laminate has a printable outer film and a sealable film bonded thereto.
  • In the grip area are the outer foil and the inner sealable Film not glued.
  • In the outer film Griffausstanzungen be introduced so that the outer film forms a handle loop.
  • the handle loop is not reinforced and therefore only suitable for packaging products that have a low weight.
  • the invention has for its object to provide a web-shaped material from which bag packaging can be made in VFFS tubular bag systems, which have an integrated film handle.
  • the film handle on a side surface of the bag package.
  • the inventive film laminate has an outer film, a sealed with this sealable film and a laminated between the outer film and the sealable film and adhered only to the outer film continuous Reinforcement strip on.
  • the outer film is a film which forms the outside of the bag from a pouch packaging produced from the film laminate.
  • the outer foil is printable.
  • the reinforcing strip is narrower than the material web and extends over the entire length of the material web.
  • the film laminate according to the invention is suitable for the production of bag packaging with integrated film handle by means of a tubular bag machine, in which the film laminate is formed into a tube and tube sections filled with products and sealed with sealing seams.
  • the film handles are formed by inserting separating strips into the outer film of the film laminate and the reinforcing strip connected to the outer film.
  • the sealable film remains intact.
  • the separating cuts can be introduced into the VFFS tubular bag system or prepared in the material web before they are rolled up into a film roll becomes. It is not possible to insert the separating cuts in the outer foil before it is glued to the sealable foil, since the laminating adhesive would penetrate through the slits and would stick the layers on the roll.
  • the reinforcing strip is preferably arranged in a region of the film laminate which is formed in the tubular bag machine into a gusset of the bag packaging.
  • the separating cuts for producing the film handles can be introduced by punching into the film laminate or produced by means of a CO 2 laser beam.
  • the laser cutting can be used without problems in non-polyolefin films, in particular films of polyethylene terephthalate (PET). PET is easy to cut with CO 2 lasers. In polyolefinic films, laser cutting is problematic because many polyolefins absorb the radiation of the CO 2 laser only weakly and thus the desired cutting effect is absent. If PE / PE composite films are used as film laminate, absorptive active substances are added to the outer film and / or the reinforcing strip to laser. Suitable laser absorptive active substances are, for example, mixed silicates.
  • the separating cuts are preferably delimited at their ends by sections which are U-shaped or circular or connect as arcs to a linear section of the separating cuts. Through these sections, the introduction of force is improved by the film handle on the wall surface of the bag packaging.
  • the invention also provides a method according to claim 7 for the production of a film laminate from which pouches with integrated handle can be made in a tubular pouch machine.
  • Production of the film laminate is a film web of an outer film over the entire surface coated with a laminating adhesive.
  • a material web of a sealable film is applied to the adhesive layer and pressed in a laminating gap between a laminating roller and a impression roller with the film web and the adhesive layer.
  • the laminating gap is fed with a reinforcing strip. This is brought into contact between the printed film web and the sealable film with the adhesive layer.
  • the peripheral surface of the impression roller preferably has a depression which is matched to the film thickness and film width of the reinforcing strip so that a uniform pressing pressure prevails in the laminating gap over the entire web width of the film laminate.
  • weakening lines or separating cuts for producing film handles can be introduced into the film laminate, which pass through only the outer film and the reinforcing strips connected to the outer film.
  • the separating cuts can be introduced by punching into the film laminate.
  • the reinforcing strip connected to the outer film and the sealable film are expediently guided over a separating plate on both sides.
  • the separating cuts for producing the film handles can alternatively also be produced by means of a CO 2 laser.
  • the sealable film of the film laminate is usually made of a polyolefin, in particular polyethylene.
  • the absorption capacity of polyethylene for the radiation of a CO 2 laser is low.
  • the outer film as well as the reinforcing strip contain, if necessary, laser absorptive substances that laser cutting improve.
  • laser absorptive substances are mixed silicates, eg. As lepidolite, porphyr, phonolite or kaolinite.
  • a printed film web 1 is coated over its entire surface with a laminating adhesive 2.
  • a material web 3 made of a sealable film is applied to the adhesive layer 2 and pressed in a laminating gap 4 between a laminating roller 5 and a impression roller 6 with the film web 1 and the adhesive layer 2.
  • the reinforcing strip 7 extends continuously over the entire length of the film laminate 8 and is between the printed film web 1 and the sealable film 3 with the adhesive layer 2 brought into contact.
  • the reinforcing strip 7 is characterized firmly connected to the printed film web 1, while he received with the sealable film 3 no connection.
  • Film handles 10 are formed by introducing separating cuts 11 in the film laminate 8.
  • the separating cuts 11 pass through only the printed outer film 1 of the film laminate 8 and the reinforcing strip 7 connected to the outer film 1, while the sealable film 3 remains intact.
  • the Fig. 3 shows separating cuts 11 on a bag 13, which has been made from the film laminate 8.
  • the separating cuts 11 can be produced by punching or by means of CO 2 laser beams.
  • the Fig. 4a to 4e show various handle shapes that can be produced by separating cuts 11 in the film laminate.
  • the separating cuts 11 respectively penetrate only the outer film 1 and the reinforcing strip 7 of the film laminate 8, while the sealable film remains intact.
  • the separating cuts 11 are delimited at their ends by sections 12 which are U-shaped in accordance with FIG Fig. 4a and 4e or circular accordingly Fig. 4b are formed or according to the representations in Fig. 4c or Fig. 4d as arcs connect to a linear section of the cuts.
  • the film laminate 8 can be processed in a tubular bag machine, in which the film laminate 8 is formed into a tube and tube sections filled with product and sealed with sealing seams.
  • the separating cuts 11 for producing the film handle 10 can be introduced into the tubular bag machine. However, it is also possible to introduce the separating cuts 11 into the film laminate 8 before it is wound up into a film roll.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Packages (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Bag Frames (AREA)

Description

Die Erfindung betrifft ein Folienlaminat, aus dem in einer Schlauchbeutelmaschine Beutelverpackungen mit integriertem Foliengriff hergestellt werden können.The invention relates to a film laminate from which bag packaging with integrated film handle can be produced in a tubular bag machine.

Die DE 202009012135 U1 betrifft ein Folienlaminat und ein Verfahren zur Herstellung dieses Laminats, aus dem Beutelverpackungen hergestellt werden.The DE 202009012135 U1 relates to a film laminate and a method of making this laminate from which bag packages are made.

Als Schlauchbeutelmaschine wird im Rahmen der Erfindung eine Verpackungsmaschine bezeichnet, die nach dem sogenannten VFFS (vertikal form fill sealing) Verfahren arbeitet. In einer nach dem VFFS-Prinzip arbeitenden Schlauchbeutelmaschine wird das Folienlaminat zu einem Schlauch geformt und werden Schlauchabschnitte mit Produkt befüllt sowie mit Siegelnähten verschlossen. Während des gesamten Prozesses wird die den Schlauch formenden Materialbahn vertikal nach unten bewegt. VFFS-Schlauchbeutelmaschinen werden vornehmlich zur Verpackung von pulverförmigen und granulierten Feststoffen, z. B. Trockenfutter für Tiere, verwendet. Sie zeichnen sich durch hohe Maschinengeschwindigkeiten aus und ermöglichen eine wirtschaftliche Fertigung und Befüllung von Beuteln für schüttfähige Produkte.As a tubular bag machine is referred to in the context of the invention, a packaging machine, which operates according to the so-called VFFS (vertical form fill sealing) method. In a flow wrapper operating according to the VFFS principle, the film laminate is formed into a tube and tube sections are filled with product and sealed with sealing seams. Throughout the process, the web forming the tube is moved vertically downwards. VFFS tubular bag machines are primarily used for the packaging of powdered and granulated solids, eg. B. dry food for animals used. They are characterized by high machine speeds and enable economical production and filling of bags for pourable products.

Beutelverpackungen, die in VFFS-Schlauchbeutelmaschinen geformt und befüllt worden sind, können im Kopfbereich Griffausstanzungen aufweisen, die während des VFFS-Prozesses in der Schlauchbeutelmaschine eingebracht werden. Nachteil dieser Beutelverpackungen ist eine oft schwierige Kombination der kopfseitig angebrachten Griffausstanzungen mit Öffnungshilfen, z. B. Perforationen. Auch wird die Ausgestaltung einer einfachen Entnahmeöffnung durch kopfseitige Griffausstanzungen erschwert.Pouches that have been molded and filled in VFFS tubular bag machines may have handle punches in the head area which are inserted in the bagging machine during the VFFS process. Disadvantage of this bag packaging is an often difficult combination of the head side mounted Griffausstanzungen with opening aids, eg. B. perforations. Also, the design of a simple removal opening is complicated by head-side Griffausstanzungen.

Bevorzugt werden daher Beutelverpackungen verwendet, die in einer als Seitenfalte ausgebildeten Seitenfläche eine Griffschlaufe aufweisen. Die Griffschlaufe wird im Rahmen der aus der Praxis bekannten Maßnahmen aufgeklebt oder angesiegelt. Derartige Griffausbildungen behindern die Verarbeitung des Folienlaminats in einer VFFS-Schlauchfolienmaschine. Meistens wird durch das Anbringen der Foliengriffe die Maschinengeschwindigkeit der Schlauchbeutelmaschine so stark beeinträchtigt, dass sie nicht mehr wirtschaftlich arbeitet. Für zahlreiche Beutelverpackungen, z. B. im Tiernahrungsbereich, werden daher vorgefertigte Beutel verwendet, die einzeln einer Füllmaschine zugeführt und befüllt werden. Die Herstellung dieser vorgefertigten Beutel sowie deren Befüllung ist allerdings wesentlich teurer als die Herstellung und Befüllung von Beuteln in VFFS-Schlauchbeutelmaschinen.Therefore, pouches are preferably used, which have a handle loop in a side surface formed as a side fold. The handle loop is glued or sealed in the context of the measures known from practice. Such handle designs hinder the processing of the film laminate in a VFFS tubular film machine. In most cases, the machine speed of the tubular bag machine is impaired so much by the application of the film handles that it no longer works economically. For numerous pouches, z. As in the pet food area, therefore prefabricated bags are used, which are individually fed to a filling machine and filled. The production of these prefabricated bags and their filling is, however, much more expensive than the production and filling of bags in VFFS tubular bag machines.

Aus DE 84 28 169 U1 sind Seitenfaltenbeutel bekannt, die einen in der Seitenfalte integrierten Foliengriff aufweisen. Die bekannten Seitenfaltenbeutel werden als Einzelbeutel vorgefertigt und in einer separaten Füllanlage mit dem Verpackungsgut befüllt. Die Beutelwand der Seitenfaltenbeutel besteht aus einem Folienlaminat, welches eine bedruckbare Außenfolie und eine mit der Außenfolie verklebte siegelfähige Folie aufweist. Im Bereich einer Seitenfalte ist zwischen der siegelfähigen Folie und der Außenfolie ein Verstärkungsblatt einkaschiert worden, welches nur mit der Außenfolie verklebt ist. Der Foliengriff wird durch Einbringen von Trennschnitten, welche die Außenfolie und das mit der Außenfolie verbundene Verstärkungsblatt durchsetzen, gebildet. Die siegelfähige Innenfolie der Verpackung bleibt unversehrt und dichtet den Innenraum der Beutelverpackung ab. Die durch Trennschnitte gebildete Griffschlaufe geht einstückig an ihren Enden in die Beutelwand über.Out DE 84 28 169 U1 Side gussets are known which have a built-in gusset in the side fold. The known gusseted bags are prefabricated as a single bag and filled in a separate filling with the packaged goods. The bag wall of the gusseted bags consists of a film laminate which has a printable outer film and a sealable film bonded to the outer film. In the area of a gusset, a reinforcing sheet has been laminated between the sealable foil and the outer foil, which is glued only to the outer foil. The film handle is formed by inserting separating cuts which pass through the outer film and the reinforcing sheet joined to the outer film. The sealable inner foil of the packaging remains intact and seals the interior of the pouch packaging. The grip loop formed by separating cuts merges integrally at its ends into the bag wall.

Die WO 2008/038308 A1 betrifft Beutelverpackungen mit integriertem Handgriff, die aus einem zweilagigen Folienlaminat gefertigt werden. Das Folienlaminat weist eine bedrucktbare Außenfolie sowie eine mit dieser verklebte siegelfähige Folie auf. Im Griffbereich sind die Außenfolie und die innenliegende siegelfähige Folie nicht verklebt. In die Außenfolie werden Griffausstanzungen eingebracht, so dass die Außenfolie eine Griffschlaufe bildet. Die Griffschlaufe ist allerdings nicht verstärkt und daher nur zur Verpackung von Produkten geeignet, die ein geringes Gewicht aufweisen.The WO 2008/038308 A1 refers to pouches with integrated handle, which are made of a two-ply foil laminate. The film laminate has a printable outer film and a sealable film bonded thereto. In the grip area are the outer foil and the inner sealable Film not glued. In the outer film Griffausstanzungen be introduced so that the outer film forms a handle loop. However, the handle loop is not reinforced and therefore only suitable for packaging products that have a low weight.

Der Erfindung liegt die Aufgabe zugrunde, ein bahnförmiges Material anzugeben, aus dem in VFFS-Schlauchbeutelanlagen Beutelverpackungen gefertigt werden können, die einen integrierten Foliengriff aufweisen. Insbesondere soll es möglich sein, den Foliengriff an einer Seitenfläche der Beutelverpackung vorzusehen.The invention has for its object to provide a web-shaped material from which bag packaging can be made in VFFS tubular bag systems, which have an integrated film handle. In particular, it should be possible to provide the film handle on a side surface of the bag package.

Gegenstand der Erfindung und Lösung dieser Aufgabe ist die Verwendung eines zu einer Folienrolle aufgewickelten Folienlaminats nach Anspruch 1. Das erfindungsgemäße Folienlaminat weist eine Außenfolie, eine mit dieser verklebte siegelfähige Folie sowie einen zwischen der Außenfolie und der siegelfähigen Folie einkaschierten und nur mit der Außenfolie verklebten fortlaufenden Verstärkungsstreifen auf. Als Außenfolie wird eine Folie bezeichnet, welche die Beutelaußenseite einer aus dem Folienlaminat hergestellten Beutelverpackung bildet. Die Außenfolie ist bedruckbar. Der Verstärkungsstreifen ist schmaler als die Materialbahn und erstreckt sich über die gesamte Länge der Materialbahn. Das erfindungsgemäße Folienlaminat eignet sich zur Herstellung von Beutelverpackungen mit integriertem Foliengriff mittels einer Schlauchbeutelmaschine, in der das Folienlaminat zu einem Schlauch geformt wird und Schlauchabschnitte mit Produkte befüllt sowie mit Siegelnähten verschlossen werden. Die Foliengriffe werden durch Einbringen von Trennschitten in die Außenfolie des Folienlaminats sowie den mit der Außenfolie verbundenen Verstärkungsstreifen gebildet. Die siegelfähige Folie bleibt dabei unversehrt. Die Trennschnitte können in der VFFS-Schlauchbeutelanlage eingebracht oder in der Materialbahn vorbereitet werden, bevor diese zu einer Folienrolle aufgerollt wird. Es ist nicht möglich, die Trennschnitte in die Außenfolie einzubringen, bevor diese mit der siegelfähigen Folie verklebt wird, da der Kaschierkleber durch die Schlitze dringen würde und die Lagen auf der Rolle verkleben würde.The inventive film laminate has an outer film, a sealed with this sealable film and a laminated between the outer film and the sealable film and adhered only to the outer film continuous Reinforcement strip on. The outer film is a film which forms the outside of the bag from a pouch packaging produced from the film laminate. The outer foil is printable. The reinforcing strip is narrower than the material web and extends over the entire length of the material web. The film laminate according to the invention is suitable for the production of bag packaging with integrated film handle by means of a tubular bag machine, in which the film laminate is formed into a tube and tube sections filled with products and sealed with sealing seams. The film handles are formed by inserting separating strips into the outer film of the film laminate and the reinforcing strip connected to the outer film. The sealable film remains intact. The separating cuts can be introduced into the VFFS tubular bag system or prepared in the material web before they are rolled up into a film roll becomes. It is not possible to insert the separating cuts in the outer foil before it is glued to the sealable foil, since the laminating adhesive would penetrate through the slits and would stick the layers on the roll.

Der Verstärkungsstreifen wird vorzugsweise in einem Bereich des Folienlaminats angeordnet, der in der Schlauchbeutelmaschine zu einer Seitenfalte der Beutelverpackung umgeformt wird.The reinforcing strip is preferably arranged in a region of the film laminate which is formed in the tubular bag machine into a gusset of the bag packaging.

Die Trennschnitte zur Erzeugung der Foliengriffe können durch Stanzen in das Folienlaminat eingebracht werden oder mittels eines CO2-Laserstrahls erzeugt werden. Das Laserschneiden kann problemlos bei nichtpolyolefinschen Folien, insbesondere Folien aus Polyethylenterephthalat (PET) eingesetzt werden. PET lässt sich mit CO2-Lasern gut schneiden. Bei polyolefinischen Folien ist Laserschneiden problematisch, da viele Polyolefine die Strahlung des CO2-Lasers nur schwach absorbieren und somit der gewünschte Schneideffekt ausbleibt. Sofern als Folienlaminat PE/PE-Verbundfolien eingesetzt werden, werden der Außenfolie und/oder dem Verstärkungsstreifen Laser absorptive Wirksubstanzen zugesetzt. Als Laser absorptive Wirksubstanzen eignen sich beispielsweise Mischsilikate.The separating cuts for producing the film handles can be introduced by punching into the film laminate or produced by means of a CO 2 laser beam. The laser cutting can be used without problems in non-polyolefin films, in particular films of polyethylene terephthalate (PET). PET is easy to cut with CO 2 lasers. In polyolefinic films, laser cutting is problematic because many polyolefins absorb the radiation of the CO 2 laser only weakly and thus the desired cutting effect is absent. If PE / PE composite films are used as film laminate, absorptive active substances are added to the outer film and / or the reinforcing strip to laser. Suitable laser absorptive active substances are, for example, mixed silicates.

Die Trennschnitte sind vorzugsweise an ihren Enden durch Abschnitte begrenzt, die U-förmig oder kreisförmig ausgebildet sind oder als Bögen an einen linearen Abschnitt der Trennschnitte anschließen. Durch diese Abschnitte kann die Krafteinleitung von dem Foliengriff auf die Wandfläche der Beutelverpackung verbessert wird.The separating cuts are preferably delimited at their ends by sections which are U-shaped or circular or connect as arcs to a linear section of the separating cuts. Through these sections, the introduction of force is improved by the film handle on the wall surface of the bag packaging.

Gegenstand der Erfindung ist auch ein Verfahren nach Anspruch 7 zur Herstellung eines Folienlaminats, aus dem in einer Schlauchbeutelmaschine Beutelverpackungen mit integriertem Handgriff gefertigt werden können. Zur Herstellung des Folienlaminats wird eine Folienbahn aus einer Außenfolie vollflächig mit einem Kaschierklebstoff beschichtet. Eine Materialbahn aus einer siegelfähigen Folie wird auf die Klebstoffschicht aufgebracht und in einem Kaschierspalt zwischen einer Kaschierwalze und einem Presseur mit der Folienbahn sowie der Klebstoffschicht verpresst. Dem Kaschierspalt wird ein Verstärkungsstreifen zugeführt. Dieser wird zwischen der bedruckten Folienbahn und der siegelfähigen Folie mit der Klebstoffschicht in Kontakt gebracht. Die Umfangsfläche des Presseurs weist vorzugsweise eine Vertiefung auf, die auf die Foliendicke und Folienbreite des Verstärkungsstreifens so abgestimmt wird, dass in dem Kaschierspalt über die gesamte Bahnbreite des Folienlaminats ein gleichmäßiger Pressdruck herrscht.The invention also provides a method according to claim 7 for the production of a film laminate from which pouches with integrated handle can be made in a tubular pouch machine. to Production of the film laminate is a film web of an outer film over the entire surface coated with a laminating adhesive. A material web of a sealable film is applied to the adhesive layer and pressed in a laminating gap between a laminating roller and a impression roller with the film web and the adhesive layer. The laminating gap is fed with a reinforcing strip. This is brought into contact between the printed film web and the sealable film with the adhesive layer. The peripheral surface of the impression roller preferably has a depression which is matched to the film thickness and film width of the reinforcing strip so that a uniform pressing pressure prevails in the laminating gap over the entire web width of the film laminate.

Bevor das Folienlaminat zu einer Folienrolle aufgewickelt wird, können in das Folienlaminat Schwächungslinien oder Trennschnitte zur Erzeugung von Foliengriffen eingebracht werden, welche nur die Außenfolie und die mit der Außenfolie verbundenen Verstärkungsstreifen durchsetzen. Die Trennschnitte können durch Stanzen in das Folienlaminat eingebracht werden. Um einen Eingriff der Stanzwerkzeuge in die siegelfähige Folie zu vermeiden, werden der mit der Außenfolie verbundene Verstärkungsstreifen und die siegelfähige Folie zweckmäßig beidseits über ein Trennblech geführt.Before the film laminate is wound up into a film roll, weakening lines or separating cuts for producing film handles can be introduced into the film laminate, which pass through only the outer film and the reinforcing strips connected to the outer film. The separating cuts can be introduced by punching into the film laminate. In order to avoid engagement of the punching tools in the sealable film, the reinforcing strip connected to the outer film and the sealable film are expediently guided over a separating plate on both sides.

Die Trennschnitte zur Erzeugung der Foliengriffe können alternativ auch mittels eines CO2-Lasers erzeugt werden. Die siegelfähige Folie des Folienlaminats besteht regelmäßig aus einem Polyolefin, insbesondere Polyethylen. Das Absorptionsvermögen von Polyethylen für die Strahlung eines CO2-Lasers ist gering. Damit ist die Gefahr, dass die siegelfähige Innenfolie durch den CO2-Laser geschwächt wird, klein. Die Außenfolie sowie der Verstärkungsstreifen enthalten bei Bedarf Laser absorptive Substanzen, die das Laserschneiden verbessern. Als Laser absorptive Substanzen eignen sich Mischsilikate, z. B. Lepidolith, Porphyr, Phonolith oder Kaolinit.The separating cuts for producing the film handles can alternatively also be produced by means of a CO 2 laser. The sealable film of the film laminate is usually made of a polyolefin, in particular polyethylene. The absorption capacity of polyethylene for the radiation of a CO 2 laser is low. Thus, the risk that the sealable inner film is weakened by the CO 2 laser, small. The outer film as well as the reinforcing strip contain, if necessary, laser absorptive substances that laser cutting improve. As laser absorptive substances are mixed silicates, eg. As lepidolite, porphyr, phonolite or kaolinite.

Im Folgenden wird die Erfindung anhand eines Ausführungsbeispiels erläutert. Es zeigen schematisch

Fig.1
ein Verfahren zur Herstellung einer Folienlaminats, aus dem in einer VFFS-Schlauchbeutelmaschine Beutel mit integriertem Foliengriff hergestellt werden können,
Fig. 2
eine Presswalzenanordnung für das in Fig. 1 dargestellte Verfahren,
Fig. 3
einen unter Verwendung des Folienlaminats hergestellten Folienbeutel mit integriertem Foliengriff,
Fig. 4a bis 4e
unterschiedliche, durch Trennschnitte erzeugte Griffformen.
In the following the invention will be explained with reference to an embodiment. It show schematically
Fig.1
a process for producing a film laminate from which pouches with integrated film handles can be produced in a VFFS tubular pouch machine,
Fig. 2
a press roll arrangement for the in Fig. 1 illustrated method,
Fig. 3
a film bag made using the film laminate with integrated film handle,
Fig. 4a to 4e
different handle shapes created by cuts.

Bei dem in Fig. 1 dargestellten Verfahren wird eine bedruckte Folienbahn 1 vollflächig mit einem Kaschierklebstoff 2 beschichtet. Eine Materialbahn 3 aus einer siegelfähigen Folie wird auf die Klebstoffschicht 2 aufgebracht und in einem Kaschierspalt 4 zwischen einer Kaschierwalze 5 und einem Presseur 6 mit der Folienbahn 1 sowie der Klebstoffschicht 2 verpresst. Dabei wird dem Kaschierspalt 4 eine Verstärkungsstreifen 7 zugeführt, dessen Breite geringer ist als die Bahnbreite der beiden Folienbahnen 1, 3. Der Verstärkungsstreifen 7 erstreckt sich fortlaufend über die gesamte Länge des Folienlaminats 8 und wird zwischen der bedruckten Folienbahn 1 und der siegelfähigen Folie 3 mit der Klebstoffschicht 2 in Kontakt gebracht. Der Verstärkungsstreifen 7 wird dadurch fest mit der bedruckten Folienbahn 1 verbunden, während er mit der siegelfähigen Folie 3 keine Verbindung eingeht.At the in Fig. 1 A printed film web 1 is coated over its entire surface with a laminating adhesive 2. A material web 3 made of a sealable film is applied to the adhesive layer 2 and pressed in a laminating gap 4 between a laminating roller 5 and a impression roller 6 with the film web 1 and the adhesive layer 2. The reinforcing strip 7 extends continuously over the entire length of the film laminate 8 and is between the printed film web 1 and the sealable film 3 with the adhesive layer 2 brought into contact. The reinforcing strip 7 is characterized firmly connected to the printed film web 1, while he received with the sealable film 3 no connection.

Der Darstellung in Fig. 2 entnimmt man, dass die Umfangsfläche des Presseurs 6 eine Vertiefung 9 aufweist, die auf die Foliendicke und die Folienbreite des Verstärkungsstreifens 7 so abgestimmt wird, dass im Kaschierspalt 4 über die gesamte Bahnbreite des Folienlaminats8 ein gleichmäßiger Pressdruck herrscht.The representation in Fig. 2 If one assumes that the peripheral surface of the impression roller 6 has a recess 9 which is tuned to the film thickness and the film width of the reinforcing strip 7 so that in the laminating gap 4 over the entire web width of Folienlaminats8 a uniform pressing pressure prevails.

Foliengriffe 10 werden durch Einbringen von Trennschnitten 11 in das Folienlaminat 8 gebildet. Die Trennschnitte 11 durchsetzen lediglich die bedruckte Außenfolie 1 des Folienlaminats 8 sowie den mit der Außenfolie 1 verbundenen Verstärkungsstreifen 7, während die siegelfähige Folie 3 unversehrt bleibt. Die Fig. 3 zeigt Trennschnitte 11 an einem Beutel 13, der aus dem Folienlaminat 8 gefertigt worden ist. Die Trennschnitte 11 können durch Stanzen oder mittels CO2-Laserstrahlen erzeugt werden.Film handles 10 are formed by introducing separating cuts 11 in the film laminate 8. The separating cuts 11 pass through only the printed outer film 1 of the film laminate 8 and the reinforcing strip 7 connected to the outer film 1, while the sealable film 3 remains intact. The Fig. 3 shows separating cuts 11 on a bag 13, which has been made from the film laminate 8. The separating cuts 11 can be produced by punching or by means of CO 2 laser beams.

Die Fig. 4a bis 4e zeigen verschiedene Griffformen, die durch Trennschnitte 11 in das Folienlaminat erzeugt werden können. Die Trennschnitte 11 durchsetzen jeweils nur die Außenfolie 1 und den Verstärkungsstreifen 7 des Folienlaminats 8, während die siegelfähige Folie unversehrt bleibt. Um zu verhindern, dass der durch die Trennschnitte 11 erzeugte Foliengriff 10 unter Last unkontrolliert weiter reißt, sind die Trennschnitte 11 an ihren Enden durch Abschnitte 12 begrenzt, die U-förmig entsprechend den Fig. 4a und 4e oder kreisförmig entsprechend Fig. 4b ausgebildet sind oder entsprechend den Darstellungen in Fig. 4c oder Fig. 4d als Bögen am einem linearen Abschnitt der Trennschnitte anschließen.The Fig. 4a to 4e show various handle shapes that can be produced by separating cuts 11 in the film laminate. The separating cuts 11 respectively penetrate only the outer film 1 and the reinforcing strip 7 of the film laminate 8, while the sealable film remains intact. In order to prevent the foil handle 10 produced by the separating cuts 11 from tearing further uncontrollably under load, the separating cuts 11 are delimited at their ends by sections 12 which are U-shaped in accordance with FIG Fig. 4a and 4e or circular accordingly Fig. 4b are formed or according to the representations in Fig. 4c or Fig. 4d as arcs connect to a linear section of the cuts.

Das Folienlaminat 8 kann in einer Schlauchbeutelmaschine verarbeitet werden, in der das Folienlaminat 8 zu einem Schlauch geformt wird und Schlauchabschnitte mit Produkt befüllt sowie mit Siegelnähten verschlossen werden. Die Trennschnitte 11 zur Erzeugung des Foliengriffes 10 können in der Schlauchbeutelmaschine eingebracht werden. Es besteht jedoch auch die Möglichkeit, die Trennschnitte 11 in das Folienlaminat 8 einzubringen, bevor dieses zu einer Folienrolle aufgewickelt wird.The film laminate 8 can be processed in a tubular bag machine, in which the film laminate 8 is formed into a tube and tube sections filled with product and sealed with sealing seams. The separating cuts 11 for producing the film handle 10 can be introduced into the tubular bag machine. However, it is also possible to introduce the separating cuts 11 into the film laminate 8 before it is wound up into a film roll.

Claims (11)

  1. A use of a film laminate wound up to form a film roll, comprising an outer film (1), a sealable film (3) glued to the outer film (1) and a continuous reinforcement strip (7) laminated between the outer film (1) and the sealable film (3) and glued only to the outer film (1), for manufacturing bag packages with integrated film grip (10) using a tubular bag machine, in which the film laminate (8) is formed into a tube and tube sections are filled with product and closed with sealing seams, wherein the film grips (10) are formed by the introduction of separating cuts (11) into the outer film (1) of the film laminate (8) and the reinforcement strip (7) connected with the outer film.
  2. The use of a film laminate according to claim 1, wherein the reinforcement strip (7) is arranged in an area of the film laminate (8), which in the tubular bag machine is converted into a side fold of the bag packages.
  3. The use of a film laminate according to claim 1 or 2, wherein the separating cuts (11) for creating the film grips (10) are introduced into the laminate (8) by punching.
  4. The use of a film laminate according to claim 1 or 2, wherein the separating cuts (11) for creating the film grips (10) are created by means of a CO2 laser beam.
  5. The use of a film laminate according to claim 4, wherein the outer film (1) and/or the reinforcement strip (7) contain laser-absorbing active substances.
  6. The use of a film laminate according to one of claims 1 to 5, characterised in that the separating cuts (11) are limited at their ends by sections (12) which are shaped as a U or a sphere or adjoin a at linear section of the separating cuts as arches.
  7. A method for manufacturing a film laminate destined for use according to one of claims 1 to 6,
    wherein a film web from an outer film (1) is coated all over with a laminating adhesive (2),
    wherein a material web from a sealable film (3) is placed onto the adhesive layer (2) and is pressed together with the film web (1) and the adhesive layer (2) in a laminating gap (4) between a laminating roller (5) and an impression roller (6),
    wherein a reinforcement strip (7) is fed into the laminating gap (4) and is brought into contact with the adhesive layer (2) between the printed film web (1) and the sealable film (3).
  8. The method according to claim 7, characterised in that the circumferential surface of the impression roller (6) comprises a depression (9) which is adjusted to match the film thickness and film width of the reinforcement strip (7) such that a uniform pressing force is effective in the laminating gap across the entire web width of the film laminate.
  9. The method according to claim 7 or 8, characterised in that separating cuts (11) for manufacturing film grips (10) are introduced into the film laminate (8), which penetrate only through the outer film (1) and the reinforcement strip (7) connected with the outer film.
  10. The method according to claim 9, characterised in that the separating cuts (11) for producing the film grips (10) are introduced into the film laminate by punching, wherein the reinforcement strip (7) connected with the outer film (1) and the sealable film (3) are guided on both sides over a separating sheet.
  11. The method according to claim 9, characterised in that the separating cuts (11) for producing the film grips (10) are produced by means of a CO2 laser beam.
EP10191569.2A 2010-11-17 2010-11-17 Film laminate for producing bag packaging with integrated film handle and method for producing the laminate Not-in-force EP2455301B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP10191569.2A EP2455301B1 (en) 2010-11-17 2010-11-17 Film laminate for producing bag packaging with integrated film handle and method for producing the laminate
ES10191569T ES2431946T3 (en) 2010-11-17 2010-11-17 Film laminate for the manufacture of bag packaging with integrated film handle and procedure for the manufacture of the laminate
US13/294,353 US8844246B2 (en) 2010-11-17 2011-11-11 Film laminate for the production of bags with an integrated film handle, and method for the production of the laminate
MX2011012157A MX2011012157A (en) 2010-11-17 2011-11-15 Film laminate for producing bag packaging with integrated film handle and method for producing the laminate.
CA2758402A CA2758402A1 (en) 2010-11-17 2011-11-15 Film laminate for the production of bags with an integrated film handle, and method for the production of the laminate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10191569.2A EP2455301B1 (en) 2010-11-17 2010-11-17 Film laminate for producing bag packaging with integrated film handle and method for producing the laminate

Publications (2)

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EP2455301A1 EP2455301A1 (en) 2012-05-23
EP2455301B1 true EP2455301B1 (en) 2013-07-24

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EP (1) EP2455301B1 (en)
CA (1) CA2758402A1 (en)
ES (1) ES2431946T3 (en)
MX (1) MX2011012157A (en)

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US8844246B2 (en) 2014-09-30
US20120144782A1 (en) 2012-06-14
MX2011012157A (en) 2012-05-21
ES2431946T3 (en) 2013-11-28
EP2455301A1 (en) 2012-05-23

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