EP0990596B1 - Polyolefinfilm zum Herstellen einer Faltpackung - Google Patents

Polyolefinfilm zum Herstellen einer Faltpackung Download PDF

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Publication number
EP0990596B1
EP0990596B1 EP19990420203 EP99420203A EP0990596B1 EP 0990596 B1 EP0990596 B1 EP 0990596B1 EP 19990420203 EP19990420203 EP 19990420203 EP 99420203 A EP99420203 A EP 99420203A EP 0990596 B1 EP0990596 B1 EP 0990596B1
Authority
EP
European Patent Office
Prior art keywords
film
heat sealing
folding
packaging
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19990420203
Other languages
English (en)
French (fr)
Other versions
EP0990596A1 (de
Inventor
Marianne Gossmann
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.)
Alcan Packaging Flexible France SAS
Original Assignee
Pechiney Emballage Flexible Europe SAS
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 Pechiney Emballage Flexible Europe SAS filed Critical Pechiney Emballage Flexible Europe SAS
Publication of EP0990596A1 publication Critical patent/EP0990596A1/de
Application granted granted Critical
Publication of EP0990596B1 publication Critical patent/EP0990596B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/02—Wrappers or flexible covers
    • B65D65/14—Wrappers or flexible covers with areas coated with adhesive

Definitions

  • the invention relates to flexible films used in the packaging of solid portions or semi-solid by folding.
  • packaged solid or semi-solid portions in flexible films mention may be made of food products such as broths KUB®.
  • a complex film successively consisting of a thin sheet of aluminum printed color and / or with a heat-sealing lacquer on the outside, said lacquer being applied by area or flat over the entire surface, from a layer of wax to center, and a layer of tissue paper inside, or in condensed designation: Al / wax / paper.
  • low-temperature heat-sealing product products whose sealing function is activated and carried out at relatively low temperatures ranging from 60 ° C. to 110 ° C., in contrast to conventional heat-sealing products activated at higher temperatures, and as opposed to products operating at room temperature (called “cold-seals”).
  • These low temperature heat sealing products are typically resins or mixtures of resins based on EVA, copolymers of PVC or acrylics.
  • the film according to the invention has a much better resistance to risks of perforation than traditional film based on thin aluminum foil, and this by better mechanical resistance to drilling than by better resistance to corrosion.
  • the invention uses the memory effect to facilitate the unfolding of said block by the end consumer.
  • the films according to the invention do not present any risk of migration of products to packaged food, and therefore eliminate the risk of wax migration which can take place with a structure based on Alu / wax / muslin.
  • the films according to the invention are significantly more economical than films according to the state of the art.
  • Figure 1 is a top view of the outer face of a portion of film (1) intended to form a packaging of a rigid or semi-rigid parallelepiped block having a rectangular base of 34mm x 24mm, and 12 mm height.
  • the four marked areas (20) of a layer of low temperature heat-sealing product, hatched vertically, correspond to the formation, by folding, of the four side walls of the package to be formed.
  • Each of the four areas (20) comprises two parts (201, 202) which, after folding along the lines (203), are opposite and adhere to each other, thus fixing the side walls of the package to be formed .
  • the four marked areas (21) of layer of low temperature heat-sealing product, hatched horizontally, correspond to the formation, by folding, of the upper wall of the package to be formed.
  • Each of the four areas (21) comprises two parts (211, 212) which, after folding along the lines (213), are opposite and adhere to each other, thus fixing the upper wall of the package to be formed
  • On the film portion (1) is carried an arrow (6) indicating the direction of unwinding of the film on the reel, and a marking spot (3) intended for cutting said film into portions (1) of film.
  • said film is such that at least the part of the inner face of the last ply of said fold comprises an internal layer of a heat-sealing product, so as to improve the closing of the last ply by final sealing of said inside face of the last ply and of the corresponding part of outside face of said film, comprising or not a layer of said low temperature heat-sealing product.
  • This improvement may consist in forming a last waterproof fold.
  • This modality is intended to increase, when this is made necessary in particular by local climatic conditions, the sealing of the packaging formed, the sealing of beaches (20, 21) ensuring only that the packaging formed is not likely to unfold.
  • said inner layer can be identified, so as to be correctly positioned on the part of the film forming said last ply.
  • said internal heat-sealing layer typically comprises commercial products, typically in the form of coatings based on acrylic products, PVDC, heat-sealing varnish, in the form of a flat or marked coating, said internal layer being able to adhere to said product.
  • low temperature heat sealing deposited on said outer face.
  • Said internal layer does not stick, when cold, to said low-temperature heat-sealing product, so that there is no sticking between turns of the film on reel.
  • said marking of said layer of said low-temperature heat-sealing product can be chosen as a function of said folding, so that, during said folding, all or part of a marked range (201,211) is bringing into contact, respectively, of all or part of another marked area (202,212) or possibly of the inner face of the film, said inner face being, by itself or thanks to said inner layer, suitable for sealing with said product heat sealing, so that, after folding said block, there remains no low temperature heat sealing product which is outside the package.
  • the identified areas (20,21) are made up of half-areas (201,202,211,212) which are compared by folding around fold lines (203,213).
  • said polyolefin-based film is preferably chosen from PP, OPP, metallized OPP, multilayer OPP-based films, coated OPP films, expanded OPP to pearlescent appearance and HDPE.
  • these films or the films according to the invention can comprise a barrier layer, typically an oxygen barrier, typically chosen from EVOH or PVDC.
  • Another object of the invention consists of the use of a film according to the invention for packaging food products in the form of rigid blocks or semi-rigid, typically cubic or parallelepipedic.
  • the films according to the invention constitute a solution to all of the problems raised previously mentioned.
  • these films have been found to have very good machinability - or ease of use on an industrial packaging line, in particular it has been observed that, no doubt thanks to the choice of said low-temperature heat-sealing product, said film does not had no tendency to adhere to the said folding boxes as could happen with other films tested by the applicant.

Landscapes

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

Claims (6)

  1. Film zum Herstellen von Packungen mit durch Faltung und Siegelung von Portionen dieses Films geformten Wänden für feste oder halbfeste Blöcke, dadurch gekennzeichnet, dass
    a) er einen Film auf Polyolefinbasis aufweist,
    b) die Außenseite des Films eine Deckschicht aus einem Niedertemperatur-Siegelwerkstoff mit ausgebildeten markierten Bereichen aufweist, um nach dem Siegeln, das im Anschluss an das Falten erfolgt, die genannte Packung mit den dauerhaft fixierten Wänden zu erhalten, wobei der Siegelwerkstoff eine Siegelfunktion hat, die bei einer Temperatur von 60 °C bis 110 °C aktiv wird.
  2. Film nach Anspruch 1, bei dem wenigstens der Bereich der Innenseite der letzten Falte der Faltung eine Innenschicht aus einem Siegelwerkstoff aufweist, um das Schließen dieser letzten Falte durch abschließendes Verschmelzen der Innenseite der letzten Falte und des entsprechenden Bereichs der Außenseite des Films, welcher einen Siegelwerkstoff aufweist oder nicht, zu verbessern.
  3. Film nach irgendeinem der Ansprüche 1 bis 2, wobei der Film auf Polyolefinbasis unter PP, OPP, metallisiertem OPP, den Mehrschichtfilmen auf OPP-Basis, den beschichteten OPP-Filmen, den aufgeschäumten, perlmuttartig glänzenden OPP und den HDPE gewählt ist.
  4. Film nach Anspruch 3 mit einer Barriereschicht gegen Sauerstoff, typischerweise gewählt unter EVOH UND PVDC.
  5. Verwendung eines Films nach irgendeinem der Ansprüche 1 bis 4 zur Verpackung von Nahrungsmitteln, die in Form von typischerweise würfeloder quaderförmigen, festen oder halbfesten Blöcken vorliegen.
  6. Verwendung eines Films nach Anspruch 5, wobei die Markierung der Niedertemperatur-Siegelschicht in Abhängigkeit von der Faltung so gewählt wird, dass beim Falten jeder markierte Bereich oder Teil eines markierten Bereichs jeweils mit einem anderen markierten Bereich oder Teil eines anderen markierten Bereichs oder eventuell mit der Innenseite des Films in Kontakt kommt - wobei diese Innenseite eigens oder durch die genannte Innenschicht geeignet ist, mit dem Siegelwerkstoff zu verschmelzen - damit nach erfolgtem Falten des Blocks kein Niedertemperatur-Siegelwerkstoff auf der Außenseite der Packung verbleibt.
EP19990420203 1998-10-02 1999-10-01 Polyolefinfilm zum Herstellen einer Faltpackung Expired - Lifetime EP0990596B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9812581A FR2784079B1 (fr) 1998-10-02 1998-10-02 Film a base de polyolefine pour former un emballage par pliage
FR9812581 1998-10-02

Publications (2)

Publication Number Publication Date
EP0990596A1 EP0990596A1 (de) 2000-04-05
EP0990596B1 true EP0990596B1 (de) 2004-06-23

Family

ID=9531314

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990420203 Expired - Lifetime EP0990596B1 (de) 1998-10-02 1999-10-01 Polyolefinfilm zum Herstellen einer Faltpackung

Country Status (4)

Country Link
EP (1) EP0990596B1 (de)
DE (1) DE69918238T2 (de)
ES (1) ES2222676T3 (de)
FR (1) FR2784079B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3698967A1 (de) 2019-02-21 2020-08-26 Amcor Flexibles Sarrebourg Verpackungsfolie

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE317804T1 (de) 1999-10-07 2006-03-15 Huhtamaki Ronsberg Kunststofffolie
FR2804088B1 (fr) * 2000-01-24 2002-07-12 Naturembal Sa Flan pour garniture de container du type cageot ou caisse
ATE487592T1 (de) 2004-03-09 2010-11-15 3A Technology & Man Ag Verpackungsfolie
EP2090524A1 (de) 2008-02-13 2009-08-19 Alcan Technology & Management Ltd. Verpackung mit blockförmigem Nahrungsmittelprodukt
EP2371735A1 (de) 2010-03-31 2011-10-05 Amcor Flexibles Kreuzlingen Ltd. Verpackungsfolie
DE102017218176A1 (de) 2017-10-11 2019-04-11 Huhtamaki Flexible Packaging Germany Gmbh & Co. Kg Verwendung einer Zellglasfolie zur Verpackung von pastösen, wasserlöslichen Lebensmitteln in geometrisch bestimmter Gestalt

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1376509A (fr) * 1963-05-02 1964-10-31 Procédé de collage pour emballage de beurre
FR1468818A (fr) * 1965-09-24 1967-02-10 Us Rubber Co Procédé pour l'emballage d'une matière élastomère collante et papier d'emballage pour la mise en oeuvre de ce procédé
GB9109576D0 (en) * 1991-05-02 1991-06-26 United Biscuits Ltd Improvements in and relating to wrapping food products
EP0828665A1 (de) * 1995-05-24 1998-03-18 SOUTHPAC TRUST INTERNATIONAL, Inc., not individually, but as Trustee of the Family Trust, A dated December 8, 1995 Verfahren zum verpacken von nahrungsmitteln mittels hüllmaterial, das mit klebe-und haftmittel versehen ist
FR2761960B1 (fr) * 1997-04-09 1999-05-28 Pechiney Emballage Flexible Eu Film a base de polyolefine pour former un emballage par pliage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3698967A1 (de) 2019-02-21 2020-08-26 Amcor Flexibles Sarrebourg Verpackungsfolie
WO2020169239A1 (en) 2019-02-21 2020-08-27 Amcor Flexibles Sarrebourg Packaging film

Also Published As

Publication number Publication date
ES2222676T3 (es) 2005-02-01
FR2784079A1 (fr) 2000-04-07
DE69918238T2 (de) 2005-07-21
EP0990596A1 (de) 2000-04-05
DE69918238D1 (de) 2004-07-29
FR2784079B1 (fr) 2000-11-03

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