EP0652103A1 - Composite packaging film and packaging pouch comprising such a film - Google Patents

Composite packaging film and packaging pouch comprising such a film Download PDF

Info

Publication number
EP0652103A1
EP0652103A1 EP94402499A EP94402499A EP0652103A1 EP 0652103 A1 EP0652103 A1 EP 0652103A1 EP 94402499 A EP94402499 A EP 94402499A EP 94402499 A EP94402499 A EP 94402499A EP 0652103 A1 EP0652103 A1 EP 0652103A1
Authority
EP
European Patent Office
Prior art keywords
composite sheet
films
sheet according
film
fraction
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.)
Withdrawn
Application number
EP94402499A
Other languages
German (de)
French (fr)
Inventor
Philippe Clement
Gérard Bonnet
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.)
Amcor Flexibles France SAS
Original Assignee
C M B FLEXIBLE
CMB Flexible
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 C M B FLEXIBLE, CMB Flexible filed Critical C M B FLEXIBLE
Publication of EP0652103A1 publication Critical patent/EP0652103A1/en
Withdrawn legal-status Critical Current

Links

Images

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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/02—Local reinforcements or stiffening inserts, e.g. wires, strings, strips or frames

Definitions

  • the present invention relates to a composite packaging sheet, of the type comprising two films bonded to each other.
  • Composite sheets of this type are widely used for packaging, in particular in sachets, of food products.
  • the two films are typically one in oriented polypropylene, easily tearable, and the other in polyethylene, clearly more resistant to tearing.
  • the object of the invention is to economically improve the tear resistance of the composite sheets in question.
  • the subject of the invention is a composite sheet as defined in claim 1.
  • the composite sheet according to the invention may include one or more of the characteristics described in sub-claims 2 to 12.
  • the invention also relates to a bag made of a composite sheet as defined above, closed by a bottom seal and a side seal.
  • the welds and the cuts of the composite sheet are carried out outside the reinforcement zone.
  • the composite sheet 1 shown in Figures 1 and 2 has a rectangular shape which is obtained by cutting, along two transverse lines 2 front and rear 3 indicated in phantom, in a continuous strip unwound from a coil (not shown).
  • the longitudinal edges of the continuous strip form the longitudinal edges 4 and 5 of the sheet 1.
  • Sheet 1 is produced from two superimposed films glued to each other, namely a film opaque 6 in bi-oriented polypropylene and a transparent film 7 in non-oriented polyethylene. These two films are glued to each other continuously over the entire extent of the sheet, except in a reinforcement zone 8 of rectangular shape.
  • the reinforcement zone 8 has a front edge 9 adjacent to the edge 2 and parallel to it, two lateral edges 10, 11 neighboring the edges 4 and 5 respectively and parallel to them, and a rear edge 12.
  • a front edge 9 adjacent to the edge 2 and parallel to it
  • two lateral edges 10, 11 neighboring the edges 4 and 5 respectively and parallel to them
  • a rear edge 12 a rear edge 12.
  • the two films 6 and 7 are only glued to one another in a multitude of discrete gluing points 16.
  • the two sheets are free. 'one over the other.
  • the points 16 can be circular and arranged in several rows, staggered from one row to the other.
  • a non-stick varnish 18 is first deposited on the inner face 17 of the film 6, which covers the entire area 8 except points 16 Then, on the same face of the film 6, over the entire extent of the sheet 1, a continuous layer 19 of a conventional adhesive with two or three components is deposited, and the film 7 is applied to this layer of adhesive. Due to the presence of the varnish 18, the film 7, after pressing, only adheres to the film 6, in the zone 8, at the locations devoid of varnish, that is to say at points 16. Outside zone 8, the adhesion of the two films is total.
  • the varnish 18 can be colored so as to appear on the film 6; this facilitates the presence and positioning control of this varnish.
  • the adhesive 19 can be applied in a marked manner, only outside of zone 8 and on the points 16, in which case the varnish 18 is not used.
  • these operations are carried out continuously, in order to obtain the abovementioned continuous strip from which the sheets 1 are cut. As shown in FIG. 3, these cuts are generally made by means of serrated knives.
  • any line crossing the area 8 necessarily meets a location where the two films are independent of each other.
  • the reinforcement zone 8 it is possible on the one hand to cut the sheets 1, along the edges 2 and 3, in parts of the sheet devoid of varnish, and on the other hand also to produce welds in unvarnished parts of the sheet. This ensures the sharpness of the cuts and the reliability of the welds.
  • the reinforcement zone 8 extends throughout the region of the bag, located on either side of the link 22, in which this bag undergoes repeated repeated deformations during the consumption of the packaged product.

Abstract

This composite sheet comprises at least two films (6, 7) adhesively bonded to each other. In at least one reinforcement region (8) of the sheet, the two films (6, 7) are adhesively bonded to each other only over a fraction (16) of the area of the reinforcement region, this fraction being distributed over the entire extent of this region. Application to composite sheets, made up of film that is easily tearable and film that is difficult to tear, intended for the packaging of foodstuffs. <IMAGE>

Description

La présente invention est relative à une feuille composite d'emballage, du type comprenant deux films collés l'un à l'autre.The present invention relates to a composite packaging sheet, of the type comprising two films bonded to each other.

Les feuilles composites de ce type sont largement utilisées pour l'emballage, notamment en sachets, de produits alimentaires. Les deux films sont typiquement l'un en polypropylène orienté, facilement déchirable, et l'autre en polyéthylène, nettement plus résistant à la déchirure.Composite sheets of this type are widely used for packaging, in particular in sachets, of food products. The two films are typically one in oriented polypropylene, easily tearable, and the other in polyethylene, clearly more resistant to tearing.

Dans les feuilles composites connues de ce type, les deux films sont collés l'un à l'autre le plus parfaitement possible sur toute l'étendue de la feuille. Ceci a pour conséquence qu'à partir d'une amorce de déchirure, la feuille se déchire à peu près aussi facilement que si elle était uniquement constituée de polypropylène orienté. En d'autres termes, on ne bénéficie pas des propriétés de résistance à la déchirure du polyéthylène.In known composite sheets of this type, the two films are bonded to each other as perfectly as possible over the entire extent of the sheet. This has the consequence that from a tear initiation, the sheet tears about as easily as if it were only made of oriented polypropylene. In other words, we do not benefit from the tear resistance properties of polyethylene.

Par suite, lorsque les sachets réalisés avec de telles feuilles sont destinés à être ouverts et fermés de façon répétée, par exemple pour l'emballage de pains en tranches, ils se fendent souvent sur toute leur hauteur avant la fin de la consommation du produit qu'ils contiennent.Consequently, when the bags made with such sheets are intended to be opened and closed repeatedly, for example for the packaging of sliced breads, they often split over their entire height before the end of the consumption of the product which 'they contain.

L'invention a pour but d'améliorer de façon économique la résistance à la déchirure des feuilles composites en question.The object of the invention is to economically improve the tear resistance of the composite sheets in question.

A cet effet, l'invention a pour objet une feuille composite telle que définie dans la revendication 1.To this end, the subject of the invention is a composite sheet as defined in claim 1.

La feuille composite suivant l'invention peut comporter une ou plusieurs des caractéristiques décrites dans les sous-revendications 2 à 12.The composite sheet according to the invention may include one or more of the characteristics described in sub-claims 2 to 12.

L'invention a également pour objet un sachet constitué d'une feuille composite telle que définie ci-dessus, fermée par une soudure de fond et une soudure latérale.The invention also relates to a bag made of a composite sheet as defined above, closed by a bottom seal and a side seal.

Dans un tel sachet, de préférence, les soudures et les découpes de la feuille composite sont réalisées en dehors de la zone de renforcement.In such a bag, preferably, the welds and the cuts of the composite sheet are carried out outside the reinforcement zone.

Un exemple de réalisation de l'invention va maintenant être décrit en regard du dessin annexé, sur lequel :

  • la Figure 1 représente une feuille composite conforme à l'invention;
  • la Figure 2 est une vue éclatée prise en coupe suivant la ligne II-II de la Figure 1; et
  • la Figure 3 représente un sachet réalisé à partir de la feuille composite des Figures 1 et 2.
An embodiment of the invention will now be described with reference to the attached drawing, in which:
  • Figure 1 shows a composite sheet according to the invention;
  • Figure 2 is an exploded view taken in section along line II-II of Figure 1; and
  • FIG. 3 represents a sachet produced from the composite sheet of FIGS. 1 and 2.

La feuille composite 1 représentée aux Figures 1 et 2 a une forme rectangulaire qui est obtenue par découpe, le long de deux lignes transversales avant 2 et arrière 3 indiquées en traits mixtes, dans une bande continue déroulée d'une bobine (non représentée). Les bords longitudinaux de la bande continue forment les bords longitudinaux 4 et 5 de la feuille 1.The composite sheet 1 shown in Figures 1 and 2 has a rectangular shape which is obtained by cutting, along two transverse lines 2 front and rear 3 indicated in phantom, in a continuous strip unwound from a coil (not shown). The longitudinal edges of the continuous strip form the longitudinal edges 4 and 5 of the sheet 1.

La feuille 1 est réalisée à partir de deux films superposés collés l'un à l'autre, à savoir un film opaque 6 en polypropylène bi-orienté et un film transparent 7 en polyéthylène non orienté. Ces deux films sont collés l'un à l'autre de façon continue sur toute l'étendue de la feuille, sauf dans une zone de renforcement 8 de forme rectangulaire.Sheet 1 is produced from two superimposed films glued to each other, namely a film opaque 6 in bi-oriented polypropylene and a transparent film 7 in non-oriented polyethylene. These two films are glued to each other continuously over the entire extent of the sheet, except in a reinforcement zone 8 of rectangular shape.

La zone de renforcement 8 comporte un bord avant 9 voisin du bord 2 et parallèle à celui-ci, deux bords latéraux 10, 11 voisins respectivement des bords 4 et 5 et parallèles à ceux-ci, et un bord arrière 12. Ainsi, sur les deux côtés longitudinaux et à l'avant de la zone 8 se trouvent des bandes 13 à 15 respectivement, sur toute l'étendue desquelles les deux films sont collés l'un à l'autre de façon continue.The reinforcement zone 8 has a front edge 9 adjacent to the edge 2 and parallel to it, two lateral edges 10, 11 neighboring the edges 4 and 5 respectively and parallel to them, and a rear edge 12. Thus, on the two longitudinal sides and at the front of the zone 8 are strips 13 to 15 respectively, over the whole extent of which the two films are glued to each other continuously.

Dans la zone de renforcement 8, les deux films 6 et 7 ne sont collés l'un à l'autre qu'en une multitude de points de collage discrets 16. En tout autre emplacement de cette zone 8, les deux feuilles sont libres l'une par rapport à l'autre. Comme représenté, les points 16 peuvent être circulaires et disposés en plusieurs rangées, en quinconce d'une rangée à l'autre.In the reinforcement zone 8, the two films 6 and 7 are only glued to one another in a multitude of discrete gluing points 16. In any other location of this zone 8, the two sheets are free. 'one over the other. As shown, the points 16 can be circular and arranged in several rows, staggered from one row to the other.

Pour obtenir un tel agencement, comme on le voit sur la vue éclatée de la Figure 2, on dépose tout d'abord sur la face intérieure 17 du film 6 un vernis anti-adhésif 18, lequel recouvre toute la zone 8 sauf les points 16. Puis on dépose sur la même face du film 6, sur toute l'étendue de la feuille 1, une couche continue 19 d'un adhésif classique à deux ou trois composants, et on applique le film 7 sur cette couche d'adhésif. Du fait de la présence du vernis 18, le film 7, après pressage, n'adhère au film 6, dans la zone 8, qu'aux emplacements dépourvus de vernis, c'est-à-dire aux points 16. En dehors de la zone 8, l'adhérence des deux films est totale.To obtain such an arrangement, as can be seen in the exploded view of FIG. 2, a non-stick varnish 18 is first deposited on the inner face 17 of the film 6, which covers the entire area 8 except points 16 Then, on the same face of the film 6, over the entire extent of the sheet 1, a continuous layer 19 of a conventional adhesive with two or three components is deposited, and the film 7 is applied to this layer of adhesive. Due to the presence of the varnish 18, the film 7, after pressing, only adheres to the film 6, in the zone 8, at the locations devoid of varnish, that is to say at points 16. Outside zone 8, the adhesion of the two films is total.

Si on le désire, le vernis 18 peut être coloré de manière à apparaître sur le film 6; ceci facilite le contrôle de présence et de positionnement de ce vernis.If desired, the varnish 18 can be colored so as to appear on the film 6; this facilitates the presence and positioning control of this varnish.

En variante, on peut appliquer l'adhésif 19 de façon repérée, uniquement en-dehors de la zone 8 et sur les points 16, auquel cas on n'utilise pas le vernis 18.As a variant, the adhesive 19 can be applied in a marked manner, only outside of zone 8 and on the points 16, in which case the varnish 18 is not used.

En pratique, ces opérations sont réalisées en continu, pour obtenir la bande continue précitée dans laquelle sont découpées les feuilles 1. Comme représenté sur la Figure 3, ces découpes sont généralement réalisées au moyen de couteaux dentelés.In practice, these operations are carried out continuously, in order to obtain the abovementioned continuous strip from which the sheets 1 are cut. As shown in FIG. 3, these cuts are generally made by means of serrated knives.

Si on amorce une déchirure de la feuille 1, par exemple à partir d'une dent de son bord avant 2, on constate que la feuille se déchire très facilement dans la bande 15, à peu près de la même manière qu'en l'absence de tout film de polyéthylène. En revanche, dès que la déchirure aborde la zone 8, elle rencontre nécessairement un emplacement où les deux films sont indépendants l'un de l'autre. De façon surprenante, la déchirure progresse alors beaucoup plus difficilement, en rencontrant une résistance à la déchirure qui est sensiblement celle, nettement plus élevée, du polyéthylène.If we start a tear in the sheet 1, for example from a tooth on its front edge 2, we see that the sheet tears very easily in the strip 15, in about the same way as in absence of any polyethylene film. On the other hand, as soon as the tear approaches zone 8, it necessarily meets a location where the two films are independent of each other. Surprisingly, the tear then progresses much more difficult, meeting a tear resistance which is substantially that, significantly higher, of polyethylene.

On remarque qu'avec la disposition décrite des points de collage 16, toute ligne traversant la zone 8 rencontre nécessairement un emplacement où les deux films sont indépendants l'un de l'autre.Note that with the described arrangement of the bonding points 16, any line crossing the area 8 necessarily meets a location where the two films are independent of each other.

Pour réaliser un sachet à partir d'une feuille composite 1 (Figure 3), on rapproche l'un de l'autre les bords longitudinaux 4 et 5, et on réalise une soudure longitudinale 20 le long de ces bords, et une soudure transversale 21 le long du bord arrière 3. Après remplissage, par exemple avec du pain en tranches, le sachet est fermé par un lien ouvrable approprié 22.To make a sachet from a composite sheet 1 (Figure 3), the longitudinal edges 4 and 5 are brought together, and a longitudinal weld 20 is made along these edges, and a transverse weld 21 along the rear edge 3. After filling, for example with sliced bread, the bag is closed by an appropriate opening link 22.

Grâce à la disposition décrite plus haut de la zone de renforcement 8, on peut d'une part découper les feuilles 1, le long des bords 2 et 3, dans des parties de la feuille dépourvues de vernis, et d'autre part réaliser également les soudures dans des parties sans vernis de la feuille. On assure ainsi la netteté des découpes et la fiabilité des soudures. De plus, la zone de renforcement 8 s'étend dans toute la région du sachet, située de part et d'autre du lien 22, dans laquelle ce sachet subit d'importantes déformations répétées au cours de la consommation du produit emballé.Thanks to the arrangement described above of the reinforcement zone 8, it is possible on the one hand to cut the sheets 1, along the edges 2 and 3, in parts of the sheet devoid of varnish, and on the other hand also to produce welds in unvarnished parts of the sheet. This ensures the sharpness of the cuts and the reliability of the welds. In addition, the reinforcement zone 8 extends throughout the region of the bag, located on either side of the link 22, in which this bag undergoes repeated repeated deformations during the consumption of the packaged product.

On comprend que l'invention s'applique de la même manière aux feuilles composites d'emballage constituées de plus de deux films.It is understood that the invention applies in the same way to composite packaging sheets made up of more than two films.

Claims (14)

1 - Feuille composite d'emballage, du type comprenant deux films (6, 7) collés l'un à l'autre, caractérisée en ce que, dans au moins une zone de renforcement (8) de la feuille, les deux films (6, 7) ne sont collés l'un à l'autre que sur une fraction (16) de l'aire de la zone de renforcement, cette fraction étant répartie sur toute l'étendue de cette zone. 1 - Composite packaging sheet, of the type comprising two films (6, 7) bonded to each other, characterized in that, in at least one reinforcement zone (8) of the sheet, the two films ( 6, 7) are bonded to each other only over a fraction (16) of the area of the reinforcement zone, this fraction being distributed over the entire extent of this zone. 2 - Feuille composite suivant la revendications 1, caractérisée en ce que ladite fraction collée (16) représente une fraction minoritaire de l'aire de la zone de renforcement (8). 2 - Composite sheet according to claim 1, characterized in that said bonded fraction (16) represents a minority fraction of the area of the reinforcement zone (8). 3 - Feuille composite suivant la revendication 1 ou 2, caractérisée en ce que ladite fraction collée est constituée d'une multitude de régions de collage discrètes (16). 3 - Composite sheet according to claim 1 or 2, characterized in that said bonded fraction consists of a multitude of discrete bonding regions (16). 4 - Feuille composite suivant la revendication 3, caractérisée en ce que lesdites régions de collage discrètes (16) sont des points de collage, notamment disposés en quinconce sur plusieurs rangées. 4 - Composite sheet according to claim 3, characterized in that said discrete bonding regions (16) are bonding points, in particular arranged in staggered rows in several rows. 5 - Feuille composite suivant l'une quelconque des revendications 1 à 4, caractérisée en ce qu'elle comporte au moins une bande marginale (13 à 15), longitudinale et/ou transversale, bordant la zone de renforcement (8) et dans laquelle les deux films (6, 7) sont collés l'un à l'autre sur toute l'étendue de cette bande. 5 - Composite sheet according to any one of claims 1 to 4, characterized in that it comprises at least one marginal strip (13 to 15), longitudinal and / or transverse, bordering the reinforcement zone (8) and in which the two films (6, 7) are glued to each other over the entire extent of this strip. 6 - Feuille composite suivant l'une quelconque des revendications 1 à 5, caractérisée en ce qu'une couche d'adhésif continue (19) est disposée entre les deux films (6, 7) sur toute l'étendue de la feuille (1), et en ce que, dans la zone de renforcement (8), l'un au moins (6) des deux films porte un vernis anti-adhésif (18) sur toute la surface sur laquelle il n'est pas collé à l'autre film (7). 6 - composite sheet according to any one of claims 1 to 5, characterized in that a continuous adhesive layer (19) is disposed between the two films (6, 7) over the entire extent of the sheet (1 ), and in that, in the reinforcement zone (8), at least one (6) of the two films carries a non-stick varnish (18) over the entire surface on which it is not glued to the other film (7). 7 - Feuille composite suivant la revendication 6, dans laquelle l'un (7) des deux films est transparent et l'autre (6) est opaque, caractérisée en ce que le vernis (18) a une couleur différente de celle de la face collée du film opaque (6). 7 - composite sheet according to claim 6, wherein one (7) of the two films is transparent and the other (6) is opaque, characterized in that the varnish (18) has a different color from that of the face glued with opaque film (6). 8 - Feuille composite suivant l'une quelconque des revendications 1 à 7, de forme rectangulaire, caractérisée en ce que la zone de renforcement (8) ne n'étend que sur une fraction de la longueur de la feuille (1), à partir d'un emplacement voisin d'un bord transversal (2) de cette feuille. 8 - composite sheet according to any one of claims 1 to 7, of rectangular shape, characterized in that the reinforcement zone (8) extends only over a fraction of the length of the sheet (1), from of a location near a transverse edge (2) of this sheet. 9 - Feuille composite suivant l'une quelconque des revendications 1 à 8, caractérisée en ce que la zone de renforcement (8) est agencée de manière que toute ligne qui la traverse rencontre au moins un emplacement de cette zone dans lequel les films (6, 7) ne sont pas collés l'un à l'autre. 9 - composite sheet according to any one of claims 1 to 8, characterized in that the reinforcement zone (8) is arranged so that any line which passes through it meets at least one location in this zone in which the films (6 , 7) are not glued to each other. 10 - Feuille composite suivant l'une quelconque des revendications 1 à 9, caractérisée en ce que les deux films (6, 7) ont des résistances à la déchirure différentes. 10 - Composite sheet according to any one of claims 1 to 9, characterized in that the two films (6, 7) have different tear strengths. 11 - Feuille composite suivant la revendication 10, caractérisée en ce que l'un des films (6) est en une matière plastique orientée tandis que l'autre film (7) est en une matière plastique non orientée. 11 - Composite sheet according to claim 10, characterized in that one of the films (6) is made of an oriented plastic material while the other film (7) is made of a non-oriented plastic material. 12 - Feuille composite suivant la revendication 11, caractérisée en ce que l'un des films (6) est en un polypropylène orienté, un polyester orienté ou un polyamide orienté, tandis que l'autre film (7) est en un polyéthylène, un ionomère, un produit du type poly(acide éthylène-acrylique) (EAA) ou poly(acide éthylène-méthacrylique) (EMA), un polypropylène non orienté ou un polyamide non orienté. 12 - Composite sheet according to claim 11, characterized in that one of the films (6) is made of oriented polypropylene, oriented polyester or oriented polyamide, while the other film (7) is made of polyethylene, an ionomer, a product of the poly type (ethylene-acrylic acid) (EAA) or poly (ethylene-methacrylic acid) (EMA), an unoriented polypropylene or an unoriented polyamide. 13 - Sachet d'emballage constitué d'une feuille composite suivant l'une quelconque des revendications 1 à 12, fermée par une soudure de fond (21) et une soudure latérale (20). 13 - packaging bag consisting of a composite sheet according to any one of claims 1 to 12, closed by a bottom seal (21) and a side seal (20). 14 - Sachet suivant la revendication 13, caractérisé en ce que la feuille composite (1) est conforme à la revendication 5, et en ce que les soudures (20, 21) et les découpes (2, 3) de la feuille composite sont réalisées en dehors de la zone de renforcement (8). 14 - Bag according to claim 13, characterized in that the composite sheet (1) conforms to claim 5, and in that the welds (20, 21) and the cuts (2, 3) of the composite sheet are made outside the reinforcement area (8).
EP94402499A 1993-11-04 1994-11-04 Composite packaging film and packaging pouch comprising such a film Withdrawn EP0652103A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9313133 1993-11-04
FR9313133A FR2711971B1 (en) 1993-11-04 1993-11-04 Composite packaging sheet, and packaging bag made from such a sheet.

Publications (1)

Publication Number Publication Date
EP0652103A1 true EP0652103A1 (en) 1995-05-10

Family

ID=9452509

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94402499A Withdrawn EP0652103A1 (en) 1993-11-04 1994-11-04 Composite packaging film and packaging pouch comprising such a film

Country Status (2)

Country Link
EP (1) EP0652103A1 (en)
FR (1) FR2711971B1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7508031A (en) * 1974-07-05 1976-01-07 Rasmussen O B VERY STRONG LAMINATE OF THERMOPLASTIC POLYMER FOILS AND PROCESS FOR MANUFACTURING THEM.
FR2275377A1 (en) * 1974-06-20 1976-01-16 Grace W R Ltd LAMINATE FILM FOR VACUUM PACKAGING
EP0414135A2 (en) * 1989-08-21 1991-02-27 Hänsel Textil GmbH &amp; Co. Printing of an adhesive dot matrix on a plastic web, and machine therefore

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2275377A1 (en) * 1974-06-20 1976-01-16 Grace W R Ltd LAMINATE FILM FOR VACUUM PACKAGING
NL7508031A (en) * 1974-07-05 1976-01-07 Rasmussen O B VERY STRONG LAMINATE OF THERMOPLASTIC POLYMER FOILS AND PROCESS FOR MANUFACTURING THEM.
EP0414135A2 (en) * 1989-08-21 1991-02-27 Hänsel Textil GmbH &amp; Co. Printing of an adhesive dot matrix on a plastic web, and machine therefore

Also Published As

Publication number Publication date
FR2711971A1 (en) 1995-05-12
FR2711971B1 (en) 1996-01-26

Similar Documents

Publication Publication Date Title
EP1051338B1 (en) Case for products such as moist wipes
EP0406109B1 (en) Thermoplastic package which is opened by means of partially peeling a multilayer lid sealed at the edge of the package as well as a film of multilayer lids
EP0790193B1 (en) Opening device for a flanged foil-sealed container
EP1544127B1 (en) Package with perforable lid
EP1410999B1 (en) Reclosable flexible package
EP0242268B1 (en) Packaging provided with an integral opening, especially for pasty food products
FR2757835A1 (en) PROCESS FOR MANUFACTURING PACKAGING AND PACKAGING WITH LASER PREDECHOUPE
WO2005030612A1 (en) Bag having an elastic band, and method for the production thereof
EP1243523A1 (en) Multilayered packaging sheet with a tear strip
EP0748745A1 (en) Opening device for a thin film flexible package
CA2374569A1 (en) Case and cardboard blank with tearaway wall
FR2885353A1 (en) Plastic sealed cover for e.g. silver product or pharmaceutical
EP1077186B1 (en) Reclosable laminated packaging film and packaging made therewith
FR2976923A1 (en) Bi-material base element for sealed package for wrapping e.g. meat slices, has support including detachable portion to allow gripping and pulling of support to ensure separation between support and protective film
EP0062571B1 (en) Process and device for piercing the lid of a recipient, and manufacturing appliance for the device
FR2888571A1 (en) Food product e.g. melted cheese, packaging package making element, has sheet with tears guiding strips comprising respective ends heat-sealed on sheet for forming single pull tab spaced laterally from median axis
EP0652103A1 (en) Composite packaging film and packaging pouch comprising such a film
FR2558802A1 (en) NEW PACKING STRIP PACKAGING, AND APPARATUS FOR MANUFACTURING SAME
FR2480713A1 (en) PACKING SHEET, IN PARTICULAR FOR FOODSTUFFS
FR3093705A1 (en) Easy-to-recycle packaging bag, and method of continuously manufacturing a plurality of such bags
FR2847234A1 (en) Bag with quick opening and repositionable closure has folded over top with perforated line to form pouring spout reclosable by adhesive label
EP1103488B1 (en) Film for reclosable package and package incorporating it
FR2687379A1 (en) Shrink film package
EP1120356B1 (en) Package for dispensing sheet-like articles one by one
FR2597436A1 (en) Packing package with integral opening, particularly for pasty food products

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES GB GR IE IT LI LU MC NL PT SE

17P Request for examination filed

Effective date: 19950421

17Q First examination report despatched

Effective date: 19970728

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DANISCO FLEXIBLE FRANCE

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19981030