WO2000069745A1 - Trapezoidal flexible pouch - Google Patents

Trapezoidal flexible pouch Download PDF

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Publication number
WO2000069745A1
WO2000069745A1 PCT/FR2000/001276 FR0001276W WO0069745A1 WO 2000069745 A1 WO2000069745 A1 WO 2000069745A1 FR 0001276 W FR0001276 W FR 0001276W WO 0069745 A1 WO0069745 A1 WO 0069745A1
Authority
WO
WIPO (PCT)
Prior art keywords
pocket
strip
welds
flexible
film
Prior art date
Application number
PCT/FR2000/001276
Other languages
French (fr)
Inventor
Marie-Noëlle RELECOM
Original Assignee
Enhance Packaging (France), S.A.S.
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 Enhance Packaging (France), S.A.S. filed Critical Enhance Packaging (France), S.A.S.
Priority to AU45756/00A priority Critical patent/AU4575600A/en
Publication of WO2000069745A1 publication Critical patent/WO2000069745A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/40—Packages formed by enclosing successive articles, or increments of material, in webs, e.g. folded or tubular webs, or by subdividing tubes filled with liquid, semi-liquid, or plastic materials
    • B65D75/44—Individual packages cut from webs or tubes
    • 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
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B31B2160/104—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents obtained from rhombus shaped sheets
    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/2056—Machines for packages of special type or form

Definitions

  • the present invention relates to a flexible bag formed from a flexible heat-sealable film.
  • Document US-A-5 761 884 discloses flexible bags of the aforementioned type, in particular for containing food liquids. In order to obtain a flexible upright pocket while allowing easy consumption of the liquid contained in the pocket, the latter is obtained by making convergent transverse welds which delimit a nozzle of small width which can easily be introduced into the mouth of a user like a straw.
  • An object of the invention is to provide a flexible bag allowing direct consumption of a liquid contained in the bag under comfortable and hygienic conditions of use.
  • a flexible pocket formed from a flexible heat-sealable film, this pocket comprising two converging lateral welds delimiting an end of large width and an opposite end of small width, and being equipped with a covering strip s 'extending astride the narrow end and fixed along the side welds.
  • the cover strip protects the narrow end against pollution and can be easily torn off during use so that for the consumption of the liquid contained in the pocket the user puts in his mouth an unsoiled part of the poached.
  • the pocket includes a rupture initiator associated with the strip of overlap on one side of the narrow end.
  • one of the breaking points comprises an area of the covering strip fixed to the flexible film and punched without tearing.
  • the tearing off of the covering strip simultaneously causes the opening of the narrow end so that by a single gesture the liquid contained in the pocket is ready to be consumed.
  • FIG. 1 is a partially cutaway front view of a flexible film strip during the production of a bag according to the invention
  • Figure 2 is a front perspective view of a pocket according to the preferred embodiment of the invention
  • - Figure 3 is an enlarged partial sectional view along line III-III of Figure 1
  • Figure 4 is a partial perspective view from behind of the top of the pocket according to the invention.
  • the flexible bag according to the invention is produced from a strip of flexible heat-sealable film 1, for example a polyethylene film on one of the faces of which two covering strips 2 are fixed, by example of thin polyethylene strips, each strip being fixed to the flexible film 1 at regular intervals.
  • the overlap strips 2 are fixed to the rear face of the film 1 as shown in disc-shaped zones 3, ensuring not only welding over the entire surface of the disc 3 but also light punching. without tearing on the periphery of the disc 3 so as to mechanically weaken the film 1 along the peripheries of the discs 3 and thus produce a starting point for rupture.
  • the cover strips are fixed according to the discs 3 on one side of the strip relative to an axis of symmetry 4 of the strip, alternately with respect to the longitudinal axis 16 of the flexible film 1.
  • the cover strips 2 are preferably also fixed along a straight line 5 on one side of the strip opposite the disc 3 with respect to the axis of symmetry 4 and on both sides of the covering strip which extends symmetrically with respect to the axis 16 of the flexible film 1.
  • the film 1 thus equipped with the covering strips 2 is advanced through a former known per se not shown to fold the film 1 on itself symmetrically according to folds which coincide with the axes of symmetry 4 of the covering strips 2.
  • the edges of the film 1 thus folded are also joined in a manner known per se by a longitudinal weld 6 so as to form a tube in which extends a filling rod 7 whose ex end only has been shown in the figure and which is connected to a liquid supply device to be packaged.
  • each disc 3 two L-shaped welds 14 are then made, each comprising a branch extending perpendicular to the edge of the folded film and a branch extending parallel to the axis 16 of the flexible film, these latter branches extending in directions opposite to each other.
  • the welds 14 are produced by applying inverted L-shaped electrodes to the rear face of the folded film and by heating them to a temperature just sufficient to ensure welding of the rear thickness 2.2 (see FIG. 3) of the strip. overlap 2 with the rear thickness 1.2 of the flexible film as well as a welding between them of the front thicknesses 1.1 and rear 1.2 of the flexible film as illustrated by thick line segments in FIG. 3, but without ensuring welding of the front thickness 2.1 of the covering strip with the front thickness 1.1 of the flexible film.
  • the welds 14 thus delimit a conduit 15 (see FIG. 1) of restricted width having one end adjacent to the rupture initiation disc 3.
  • transverse welds 8 are then carried out alternately inclined to the left and to the right with respect to the longitudinal direction of the film, each transverse weld 8 being divided in its middle by a cut line 9, for example by means of a rib carried by the welding electrode, so as to simultaneously produce a lateral closure weld 8.2 on the pocket which has just been filled and a lateral weld 8.1 for a new pocket, the filling of which is then ensured by the feed rod 7.
  • the pockets thus obtained have a very wide end 10 serving as a base for the pocket and an opposite end of small width 11 forming a conduit having a width which is sufficiently small to be inserted into the mouth of a user.
  • the pockets thus produced are preferably taken up in a machine comprising pads associated with a welding electrode to expel the liquid contained in the lower tips of the pocket and make welds 12 extending transversely to the wide end of the pocket to delimit horns 13 which are folded under the wide end of the pocket.
  • the welds 14 delimit a zone of small width in which the two thicknesses 1.1 and 1.2 of the flexible film remain applied against one another and are wetted by the liquid contained in the poached.
  • the covering strip 2 provides protection for the small end against dirt resulting from handling the bag. At the very wide end, the covering strip reinforces the bottom of the pocket as well as its better stability.
  • welds 14 it is possible to give the welds 14 an appropriate profile, for example in a zig-zag manner, making it possible to minimize the deformation of the film thicknesses at the level of the conduit 15 and to increase the effect of the leak prevention valve of this conduit.

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

Abstract

The flexible pouch is produced from a heat-sealable, flexible film and comprises two convergent, lateral seams (8.1, 8.2), which delimit a wide end (10) and an opposite, narrow end (11); and a cover strip (2), which is fixed to the narrow end.

Description

Poche souple trapézoïdale. Soft trapezoid pocket.
La présente invention concerne une poche souple formée à partir d'un film souple thermosoudable . On connaît du document US-A-5 761 884 des poches souples du type précité notamment pour contenir des liquides alimentaires. Afin d'obtenir une poche souple tenant debout tout en permettant une consommation aisée du liquide contenu dans la poche, celle-ci est obtenue en réalisant des soudures transversales convergentes qui délimitent un embout de faible largeur qui peut aisément être introduit dans la bouche d'un utilisateur à la façon d'une paille.The present invention relates to a flexible bag formed from a flexible heat-sealable film. Document US-A-5 761 884 discloses flexible bags of the aforementioned type, in particular for containing food liquids. In order to obtain a flexible upright pocket while allowing easy consumption of the liquid contained in the pocket, the latter is obtained by making convergent transverse welds which delimit a nozzle of small width which can easily be introduced into the mouth of a user like a straw.
Toutefois lors des manipulations de la poche l'embout risque d'être souillé de sorte que la consommation de liquide contenu dans la poche ne peut pas être effectuée directement dans des conditions normales d'hygiène.However, during handling of the bag, the tip risks being soiled so that the consumption of liquid contained in the bag cannot be carried out directly under normal hygienic conditions.
Un but de l'invention est de proposer une poche souple permettant une consommation directe d'un liquide contenu dans la poche dans des conditions d'utilisation confortables et hygiéniques .An object of the invention is to provide a flexible bag allowing direct consumption of a liquid contained in the bag under comfortable and hygienic conditions of use.
Selon l'invention on prévoit une poche souple formée à partir d'un film souple thermosoudable, cette poche comportant deux soudures latérales convergentes délimitant une extrémité de grande largeur et une extrémité opposée de petite largeur, et étant équipée d'une bande de recouvrement s ' étendant à cheval sur l'extrémité de petite largeur et fixée le long des soudures latérales. Ainsi la bande de recouvrement protège 1 ' extrémité de petite largeur contre la pollution et peut être aisément arrachée lors de l'utilisation de sorte que pour la consommation du liquide contenu dans la poche l'utilisateur met dans sa bouche une partie non souillée de la poche.According to the invention there is provided a flexible pocket formed from a flexible heat-sealable film, this pocket comprising two converging lateral welds delimiting an end of large width and an opposite end of small width, and being equipped with a covering strip s 'extending astride the narrow end and fixed along the side welds. Thus the cover strip protects the narrow end against pollution and can be easily torn off during use so that for the consumption of the liquid contained in the pocket the user puts in his mouth an unsoiled part of the poached.
Selon un aspect avantageux de 1 ' invention la poche comporte une amorce de rupture associée à la bande de recouvrement sur une des faces de l'extrémité de petite largeur. De préférence 1 ' amorce de rupture comporte une zone de la bande de recouvrement fixée au film souple et poinçonnée sans déchirement . Ainsi 1 ' arrachage de la bande de recouvrement provoque simultanément l'ouverture de l'extrémité de petite largeur de sorte que par un seul geste le liquide contenu dans la poche est prêt à être consommé .According to an advantageous aspect of the invention, the pocket includes a rupture initiator associated with the strip of overlap on one side of the narrow end. Preferably one of the breaking points comprises an area of the covering strip fixed to the flexible film and punched without tearing. Thus the tearing off of the covering strip simultaneously causes the opening of the narrow end so that by a single gesture the liquid contained in the pocket is ready to be consumed.
D'autres caractéristiques et avantages de 1 ' in- vention apparaîtront à la lecture de la description qui suit d'un mode de mise en oeuvre du procédé selon l'invention et de la poche obtenue par ce procédé en référence aux figures ci-jointes parmi lesquelles :Other characteristics and advantages of the invention will appear on reading the following description of an embodiment of the method according to the invention and of the bag obtained by this method with reference to the attached figures among :
- la figure 1 est une vue de face partiellement écorchée d'une bande de film souple lors de la réalisation d'une poche selon l'invention ; la figure 2 est une vue en perspective de devant d'une poche selon le mode de réalisation préféré de 1 ' invention, - la figure 3 est une vue en coupe partielle agrandie selon la ligne III-III de la figure 1, la figure 4 est une vue en perspective partielle de derrière du haut de la poche selon 1 ' invention. En référence aux figures, la poche souple selon l'invention est réalisée à partir d'une bande de film souple thermosoudable 1, par exemple un film de polyéthy- lène sur l'une des faces duquel sont fixées deux bandes de recouvrement 2, par exemple des bandes minces en polyéthy- lène, chaque bande étant fixée au film souple 1 à intervalle régulier. Dans le mode particulier illustré les bandes de recouvrement 2 sont fixées sur la face arrière du film 1 tel que représenté selon des zones en forme de disques 3 en assurant non seulement un soudage sur toute la surface du disque 3 mais également un léger poinçonnage sans déchirement sur le pourtour du disque 3 de façon à affaiblir mécaniquement le film 1 le long des pourtours des disques 3 et réaliser ainsi une amorce de rupture. Les bandes de recouvrements sont fixées selon les disques 3 sur un côté de la bande par rapport à un axe de symétrie 4 de la bande, de façon alternée par rapport à l'axe longitudinal 16 du film souple 1. Les bandes de recouvrement 2 sont de préférence fixées également selon un segment de droite 5 sur un côté de la bande opposé au disque 3 par rapport à l'axe de symétrie 4 et sur les deux côtés de la bande de recouvrement qui s ' étend de façon symétrique par rapport à l'axe 16 du film souple 1. Le film 1 ainsi équipé des bandes de recouvrement 2 est avancé à travers un conformateur connu en soi non représenté pour replier le film 1 sur lui-même de façon symétrique selon des plis qui coïncident avec les axes de symétrie 4 des bandes de recouvrement 2. Les bords du film 1 ainsi repliés sont solidarisés également de façon connue en soi par une soudure longitudinale 6 de façon à former un tube dans lequel s'étend une canne de remplissage 7 dont l'extrémité seulement a été représentée sur la figure et qui est reliée à un dispositif d'alimentation en liquide à conditionner.- Figure 1 is a partially cutaway front view of a flexible film strip during the production of a bag according to the invention; Figure 2 is a front perspective view of a pocket according to the preferred embodiment of the invention, - Figure 3 is an enlarged partial sectional view along line III-III of Figure 1, Figure 4 is a partial perspective view from behind of the top of the pocket according to the invention. With reference to the figures, the flexible bag according to the invention is produced from a strip of flexible heat-sealable film 1, for example a polyethylene film on one of the faces of which two covering strips 2 are fixed, by example of thin polyethylene strips, each strip being fixed to the flexible film 1 at regular intervals. In the particular embodiment illustrated, the overlap strips 2 are fixed to the rear face of the film 1 as shown in disc-shaped zones 3, ensuring not only welding over the entire surface of the disc 3 but also light punching. without tearing on the periphery of the disc 3 so as to mechanically weaken the film 1 along the peripheries of the discs 3 and thus produce a starting point for rupture. The cover strips are fixed according to the discs 3 on one side of the strip relative to an axis of symmetry 4 of the strip, alternately with respect to the longitudinal axis 16 of the flexible film 1. The cover strips 2 are preferably also fixed along a straight line 5 on one side of the strip opposite the disc 3 with respect to the axis of symmetry 4 and on both sides of the covering strip which extends symmetrically with respect to the axis 16 of the flexible film 1. The film 1 thus equipped with the covering strips 2 is advanced through a former known per se not shown to fold the film 1 on itself symmetrically according to folds which coincide with the axes of symmetry 4 of the covering strips 2. The edges of the film 1 thus folded are also joined in a manner known per se by a longitudinal weld 6 so as to form a tube in which extends a filling rod 7 whose ex end only has been shown in the figure and which is connected to a liquid supply device to be packaged.
Au voisinage de chaque disque 3 on effectue alors deux soudures en L 14 comprenant chacune une branche s ' étendant perpendiculairement au bord du film replié et une branche s ' étendant parallèlement à l'axe 16 du film souple, ces dernières branches s ' étendant dans des directions opposées l'une à l'autre. Les soudures 14 sont réalisées en appliquant des électrodes en forme de L inversés sur la face arrière du film replié et en chauffant celles-ci à une température juste suffisante pour assurer un soudage de l'épaisseur arrière 2.2 (voir figure 3) de la bande de recouvrement 2 avec l'épaisseur arrière 1.2 du film souple ainsi qu'un soudage entre elles des épaisseurs avant 1.1 et arrière 1.2 du film souple comme illustré par des segments de trait épais sur la figure 3, mais sans assurer de soudage de l'épaisseur avant 2.1 de la bande de recouvrement avec l'épaisseur avant 1.1 du film souple. Les soudures 14 délimitent ainsi un conduit 15 (voir figure 1) de largeur restreinte ayant une extrémité adjacente au disque d'amorce de rupture 3.In the vicinity of each disc 3, two L-shaped welds 14 are then made, each comprising a branch extending perpendicular to the edge of the folded film and a branch extending parallel to the axis 16 of the flexible film, these latter branches extending in directions opposite to each other. The welds 14 are produced by applying inverted L-shaped electrodes to the rear face of the folded film and by heating them to a temperature just sufficient to ensure welding of the rear thickness 2.2 (see FIG. 3) of the strip. overlap 2 with the rear thickness 1.2 of the flexible film as well as a welding between them of the front thicknesses 1.1 and rear 1.2 of the flexible film as illustrated by thick line segments in FIG. 3, but without ensuring welding of the front thickness 2.1 of the covering strip with the front thickness 1.1 of the flexible film. The welds 14 thus delimit a conduit 15 (see FIG. 1) of restricted width having one end adjacent to the rupture initiation disc 3.
Au moyen d'une électrode transversale on effectue ensuite des soudures transversales 8 alternativement inclinées vers la gauche et vers la droite par rapport à la direction longitudinale du film, chaque soudure transversale 8 étant divisée en son milieu par une ligne de coupure 9, par exemple au moyen d'une nervure portée par l'électrode de soudage, de façon à réaliser simultanément une soudure latérale de fermeture 8.2 sur la poche qui vient d'être remplie et une soudure latérale 8.1 pour une nouvelle poche dont le remplissage est ensuite assuré par la canne d'alimentation 7.By means of a transverse electrode, transverse welds 8 are then carried out alternately inclined to the left and to the right with respect to the longitudinal direction of the film, each transverse weld 8 being divided in its middle by a cut line 9, for example by means of a rib carried by the welding electrode, so as to simultaneously produce a lateral closure weld 8.2 on the pocket which has just been filled and a lateral weld 8.1 for a new pocket, the filling of which is then ensured by the feed rod 7.
Du fait de 1 ' inclinaison alternée des soudures transversales 8 les poches ainsi obtenues comportent une extrémité de grande largeur 10 servant de base à la poche et une extrémité opposée de petite largeur 11 formant un conduit ayant une largeur suffisamment faible pour être inséré dans la bouche d'un utilisateur. Afin de renforcer la base de la poche et d'assurer une meilleur stabilité de celle-ci, les poches ainsi réalisées sont de préférence reprises dans une machine comportant des patins associés à une électrode de soudage pour chasser le liquide contenu dans les pointes inférieures de la poche et réaliser des soudures 12 s ' étendant transversalement à l'extrémité de grande largeur de la poche pour délimiter des cornes 13 qui sont rabattues sous l'extrémité de grande largeur de la poche .Due to the alternating inclination of the transverse welds 8 the pockets thus obtained have a very wide end 10 serving as a base for the pocket and an opposite end of small width 11 forming a conduit having a width which is sufficiently small to be inserted into the mouth of a user. In order to reinforce the base of the pocket and to ensure better stability of the pocket, the pockets thus produced are preferably taken up in a machine comprising pads associated with a welding electrode to expel the liquid contained in the lower tips of the pocket and make welds 12 extending transversely to the wide end of the pocket to delimit horns 13 which are folded under the wide end of the pocket.
Lors de l'utilisation, le consommateur arrache la bande de recouvrement 2 s 'étendant à cheval sur l'extrémité de petite largeur 11 de la poche. Dans ce mouvement le consommateur arrache la pastille délimitée par le contour du disque 3, réalisant ainsi une ouverture dans la poche lui permettant de consommer le liquide contenu dans celle- ci en introduisant l'extrémité de petite largeur dans sa bouche et en pressant légèrement la poche souple. On notera à ce propos qu'au niveau du conduit 15 les soudures 14 délimitent une zone de faible largeur dans laquelle les deux épaisseurs 1.1 et 1.2 du film souple restent appliquées l'une contre l'autre et sont mouillées par le liquide contenu dans la poche. Ceci a pour effet de provoquer une légère adhérence des parois de la poche en regard l'une de l'autre sous l'effet de la tension superficielle résultant du liquide de sorte que lorsque la poche est posée debout ou même couchée sur une surface plane le liquide ne s'écoule pas de la poche même lorsqu'une ouverture a été réalisée à la partie supérieure de la poche . En outre 1 ' air ne pénètre pas dans la poche de sorte que le liquide contenu dans la poche garde tout son parfum. On remarquera également que jusqu'au moment de la consommation la bande de recouvrement 2 assure une protection de l'extrémité de petite dimension contre les souillures résultant des manipulations de la poche. A l'extrémité de grande largeur la bande de recouvrement assure un renforcement du fond de la poche ainsi qu'une meilleure stabilité de celle-ci.In use, the consumer tears off the covering strip 2 extending astride the narrow end 11 of the pocket. In this movement the consumer tears off the pellet delimited by the contour of the disc 3, thus making an opening in the pocket allowing him to consume the liquid contained in it by introducing the end of small width into his mouth and by lightly pressing the flexible pocket. It will be noted in this connection that at the level of the duct 15 the welds 14 delimit a zone of small width in which the two thicknesses 1.1 and 1.2 of the flexible film remain applied against one another and are wetted by the liquid contained in the poached. This has the effect of causing a slight adhesion of the walls of the pocket facing each other under the effect of the surface tension resulting from the liquid so that when the pocket is placed upright or even lying on a flat surface the liquid does not flow from the pocket even when an opening has been made in the upper part of the pocket. In addition, the air does not enter the pocket so that the liquid contained in the pocket retains all of its scent. It will also be noted that, until consumption, the covering strip 2 provides protection for the small end against dirt resulting from handling the bag. At the very wide end, the covering strip reinforces the bottom of the pocket as well as its better stability.
Bien entendu l'invention n'est pas limitée au mode de réalisation décrit et on peut y apporter des variantes de réalisation sans sortir du cadre de 1 ' inven- tion telle que défini par les revendications.Of course, the invention is not limited to the embodiment described and it is possible to make variant embodiments without departing from the scope of the invention as defined by the claims.
En particulier on peut donner aux soudures 14 un profil approprié, par exemple en zig zag permettant de minimiser la déformation des épaisseurs de film au niveau du conduit 15 et augmenter l'effet de valve antifuite de ce conduit. In particular, it is possible to give the welds 14 an appropriate profile, for example in a zig-zag manner, making it possible to minimize the deformation of the film thicknesses at the level of the conduit 15 and to increase the effect of the leak prevention valve of this conduit.

Claims

REVENDICATIONS 1. Poche souple formée à partir d'un film souple thermosoudable (1) , cette poche comportant deux soudures latérales convergentes (8.1,8.2) délimitant une extrémité de grande largeur (10) et une extrémité opposée de petite largeur (11), caractérisée en ce qu'elle comporte une bande de recouvrement (2) s ' étendant à cheval sur l'extrémité de petite largeur et fixée le long des soudures latérales (8.1,8.2) .  CLAIMS 1. Flexible pocket formed from a flexible heat-sealable film (1), this pocket comprising two converging lateral welds (8.1, 8.2) delimiting one end of large width (10) and one opposite end of small width (11), characterized in that it comprises a covering strip (2) extending astride the end of small width and fixed along the lateral welds (8.1,8.2).
2. Poche souple selon la revendication 1, caractérisée en ce qu'elle comporte une amorce de rupture (3) associée à la bande de recouvrement (2) sur une des faces de l'extrémité de petite largeur.2. Flexible pouch according to claim 1, characterized in that it comprises a breaking point (3) associated with the covering strip (2) on one of the faces of the end of small width.
3. Poche souple selon la revendication 2, carac- térisée en ce que l'amorce de rupture comporte une zone (3) de la bande de recouvrement (2) fixée au film souple (1) et poinçonnée sans déchirement .3. Flexible pouch according to claim 2, characterized in that the rupture initiator comprises a zone (3) of the covering strip (2) fixed to the flexible film (1) and punched without tearing.
4. Poche souple selon l'une des revendications 1 à 3, caractérisée en ce qu'elle comporte une bande de recouvrement (2) s ' étendant sur l'extrémité de grande largeur et fixée le long des soudures latérales .4. Flexible pocket according to one of claims 1 to 3, characterized in that it comprises a covering strip (2) extending over the end of great width and fixed along the lateral welds.
5. Poche selon la revendication 4, caractérisée en ce qu'elle comporte des cornes (13) délimitées par des soudures (12) transversales à l'extrémité de grande largeur de la poche.5. Pocket according to claim 4, characterized in that it comprises horns (13) delimited by welds (12) transverse to the very wide end of the pocket.
6. Poche selon la revendication 5, caractérisée en ce que les cornes (13) sont rabattues sous la poche.6. Pocket according to claim 5, characterized in that the horns (13) are folded under the pocket.
7. Poche selon la revendication 2, caractérisée en ce qu'elle comporte des soudures (14) délimitant un conduit (15) de largeur restreinte ayant une extrémité adjacente à l'amorce de rupture (3) .7. Pocket according to claim 2, characterized in that it comprises welds (14) delimiting a conduit (15) of restricted width having one end adjacent to the initiation of rupture (3).
8. Poche selon la revendication 7, caractérisée en ce qu'elle comporte deux soudures (14) en forme de L opposés 1 ' un à 1 ' autre . 8. Pocket according to claim 7, characterized in that it comprises two welds (14) in the form of L opposite 1 'to one' other.
9. Procédé de réalisation d'une poche à partir d'une bande de film souple thermosoudable (1) comportant les étapes de replier la bande de film (1) sur elle-même et de la souder sur elle-même selon une direction longitudinale de la bande, d'effectuer des soudures transversales (8) alternativement inclinées vers la gauche et vers la droite par rapport à la direction longitudinale de la bande et de remplir la poche dans un intervalle entre deux soudures transversales (8), caractérisé en ce qu'il comporte l'étape de fixer des bandes de recouvrement (2) symétriques par rapport à la direction longitudinale de la bande de film souple (1) avant de replier celle-ci sur elle-même .9. Method for producing a pocket from a strip of flexible heat-sealable film (1) comprising the steps of folding the film strip (1) on itself and of welding it on itself in a longitudinal direction of the strip, of carrying out transverse welds (8) alternately inclined to the left and to the right by relative to the longitudinal direction of the strip and filling the pocket in the interval between two transverse welds (8), characterized in that it comprises the step of fixing covering strips (2) symmetrical with respect to the longitudinal direction of the flexible film strip (1) before folding it over on itself.
10. Procédé de réalisation d'une poche selon la revendication 9, caractérisé en ce qu'il comporte l'étape d'effectuer des soudures (14) en forme de L opposés l'un à l'autre, adjacentes à un pli de la bande de film souple (1) après pliage de celle-ci. 10. A method of producing a bag according to claim 9, characterized in that it comprises the step of carrying out welds (14) in the form of L opposite to each other, adjacent to a fold of the flexible film strip (1) after folding thereof.
PCT/FR2000/001276 1999-05-12 2000-05-11 Trapezoidal flexible pouch WO2000069745A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU45756/00A AU4575600A (en) 1999-05-12 2000-05-11 Trapezoidal flexible pouch

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR99/06068 1999-05-12
FR9906068A FR2793477B1 (en) 1999-05-12 1999-05-12 FLEXIBLE TRAPEZOIDAL POCKET

Publications (1)

Publication Number Publication Date
WO2000069745A1 true WO2000069745A1 (en) 2000-11-23

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ID=9545529

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Application Number Title Priority Date Filing Date
PCT/FR2000/001276 WO2000069745A1 (en) 1999-05-12 2000-05-11 Trapezoidal flexible pouch

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AU (1) AU4575600A (en)
FR (1) FR2793477B1 (en)
WO (1) WO2000069745A1 (en)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN102470966A (en) * 2009-07-08 2012-05-23 雀巢产品技术援助有限公司 Flexible sachet and manufacturing method
CN105883159A (en) * 2014-12-26 2016-08-24 亨达科技(天津)有限公司 Anti-tearing rectangular packaging film structure with laser patterns

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009053405A1 (en) * 2009-11-14 2011-05-19 Harro Höfliger Verpackungsmaschinen GmbH Method for producing triangular packaging bags and arrangement therefor
WO2016120273A1 (en) * 2015-01-27 2016-08-04 Nestec S.A. Packaging and process for making it

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Publication number Priority date Publication date Assignee Title
GB805983A (en) * 1956-01-23 1958-12-17 Hermorion Ltd A method of producing a hygienic package
GB843749A (en) * 1955-12-02 1960-08-10 Claudio Borello Flexible plastic container and method of making same
US3279679A (en) * 1965-06-02 1966-10-18 Peter C Hofstra Container with included sipping-tube for potable fluids
US3913789A (en) * 1974-02-13 1975-10-21 United States Banknote Corp Fluid container of the flexible wall capsule type
GB2271753A (en) * 1992-10-21 1994-04-27 Harrison Simpkin Form, fill and seal packaging with inclined transverse seals
US5761884A (en) 1995-11-29 1998-06-09 Arkmount Systems Inc. Method of making a filled container

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB843749A (en) * 1955-12-02 1960-08-10 Claudio Borello Flexible plastic container and method of making same
GB805983A (en) * 1956-01-23 1958-12-17 Hermorion Ltd A method of producing a hygienic package
US3279679A (en) * 1965-06-02 1966-10-18 Peter C Hofstra Container with included sipping-tube for potable fluids
US3913789A (en) * 1974-02-13 1975-10-21 United States Banknote Corp Fluid container of the flexible wall capsule type
GB2271753A (en) * 1992-10-21 1994-04-27 Harrison Simpkin Form, fill and seal packaging with inclined transverse seals
US5761884A (en) 1995-11-29 1998-06-09 Arkmount Systems Inc. Method of making a filled container

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102470966A (en) * 2009-07-08 2012-05-23 雀巢产品技术援助有限公司 Flexible sachet and manufacturing method
CN105883159A (en) * 2014-12-26 2016-08-24 亨达科技(天津)有限公司 Anti-tearing rectangular packaging film structure with laser patterns

Also Published As

Publication number Publication date
AU4575600A (en) 2000-12-05
FR2793477B1 (en) 2001-06-29
FR2793477A1 (en) 2000-11-17

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