EP1140481B1 - Method for making a package comprising a peelable zone - Google Patents

Method for making a package comprising a peelable zone Download PDF

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Publication number
EP1140481B1
EP1140481B1 EP99961122A EP99961122A EP1140481B1 EP 1140481 B1 EP1140481 B1 EP 1140481B1 EP 99961122 A EP99961122 A EP 99961122A EP 99961122 A EP99961122 A EP 99961122A EP 1140481 B1 EP1140481 B1 EP 1140481B1
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EP
European Patent Office
Prior art keywords
film
portions
peelable
crushing
package
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
EP99961122A
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German (de)
French (fr)
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EP1140481A1 (en
Inventor
Henri Georges Bois
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.)
Flexico France SARL
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Flexico France SARL
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Publication date
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Priority to DK99961122T priority Critical patent/DK1140481T3/en
Publication of EP1140481A1 publication Critical patent/EP1140481A1/en
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Publication of EP1140481B1 publication Critical patent/EP1140481B1/en
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Classifications

    • 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
    • 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
    • B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B70/813—Applying closures
    • 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
    • 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
    • B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings

Definitions

  • the present invention relates to the field of packaging, in particular sachets, comprising closure profiles complementary.
  • the present invention relates to packaging or sachets comprising a peelable bonding area, i.e. separable, defined between the internal surfaces of the walls of the package or bag.
  • the peelable area has the function of strengthening the tightness of packaging or sachet.
  • This peelable area can be provided on the inside or on the outside closure profiles, relative to the internal volume of the packaging or bag.
  • this peelable area is produced by adding a strip made of peelable material, i.e. with a melting point below that of the wall of the sachet or packaging, on the film making up the latter.
  • the present invention now aims to improve the performance of known packaging.
  • the main purpose of the present invention is to provide sachets or packaging having a greater seal than that of the sachets or known prior packaging.
  • a packaging manufacturing process that includes the steps which consist of conveying sections of tape or edging of material peelable on a film intended to form the wall of the packaging, the sections having a length less than the width when deposited on the film of the desired packaging, to crush at least at the ends each section so that after crushing, the sections fully cover the width of said packaging and to fix each section of peelable material on the movie.
  • the present invention also relates to a machine for implementation of this process, as well as the packaging thus obtained.
  • the steps of crushing and fixing the sections 20 on film 10 can be simultaneous. They can also be carried out successively. In the latter case, preferably, the step crushing is performed before the fixing step.
  • These crushing and fixing steps are preferably carried out between two heated jaws.
  • the peelable material constituting the sections 20, is a material of which the melting or softening point is lower than that of the material composing the main wall of the sheet 10.
  • the material making up the sections peelable 20 is preferably formed from copolymers of olefins, ethylene or propylene.
  • the material making up the film 10 is preferably formed from polyolefins.
  • the sections 20 of peelable material should preferably have at least a flat base face intended to be fixed on the film 10.
  • the section of sections 20 can be the subject of numerous variants.
  • the sections 20 can thus be of rectangular or square section, or even globally rounded.
  • the width of the sections 20 is preferably between 1 and 10 mm, while the thickness of the sections 20 is preferably between 0.1 and 2 mm.
  • the sections 20 can be an integral part of the profiles of closure 30 and coextruded therewith, as shown schematically on Figure 4, or be formed of separate elements, routed on the film 10 parallel to said sections 30.
  • the packaging or sachets can be produced later according to any technique known to a person skilled in the art, starting from sheet 10 comprising sections 20 of strip of peelable material conforming to the present invention.
  • the peelable strip 20 is brought into contact of the surface facing the packaging and fixed thereon by compression accompanied by thermal input.
  • the method according to the present invention consisting in routing the sections 20, crushing them and fixing them on the film 10 can be made immediately upstream of a machine packaging, for example an FFS type machine, comprising means of packaging conformation from the film, filling of packaging and closing thereof.
  • a machine packaging for example an FFS type machine
  • Such an FFS type machine may include a forming neck to conform the film to the tubular state, a filling chute which opens into the tube thus formed, means capable of fixing the longitudinal edges of the film and means capable of producing sequentially transverse welds on the tubular film to define the ends of each package.
  • the present invention can be applied to sachets in which the closing profiles are activated by a slider.
  • FIG. 1 diagrams have been made of sections 20 of peelable material which covers practically the entire width of the film 10.
  • the packaging is preferably made by superimposing on the film thus equipped with sections 20, another film of the same width carrying a closure profile complementary to that of the first film, but free of peelable tape.
  • the packaging is made from a single sheet folded back on itself or conformed to the tubular state
  • the length of the sections 20 deposited on the film 10 must be of the order of half the width of the film 10, to reach exactly the width of the final packaging, after crushing.

Landscapes

  • Containers And Plastic Fillers For Packaging (AREA)
  • Making Paper Articles (AREA)
  • Packages (AREA)
  • Wrappers (AREA)
  • Bag Frames (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Abstract

The invention concerns a method for making film (10) packages having at least a peelable zone, characterised in that it comprises steps which consist in: conveying strip or edged sections (20) of peelable material on a film (10) designed to form the package wall; in flattening at least at the ends each section (20) and in fixing each section (20) of peelable material on the film (10). The invention also concerns a machine for implementing said method and the resulting packages.

Description

La présente invention concerne le domaine des emballages, notamment des sachets, comprenant des profilés de fermeture complémentaires.The present invention relates to the field of packaging, in particular sachets, comprising closure profiles complementary.

De nombreux emballages ou sachets comprenant de tels profilés de fermetures ont déjà été proposés.Numerous packages or sachets comprising such profiles of closures have already been proposed.

Plus précisément encore la présente invention concerne les emballages ou sachets comprenant une zone de liaison pelable, c'est à dire séparable, définie entre les surfaces internes des parois de l'emballage ou sachet.Even more precisely, the present invention relates to packaging or sachets comprising a peelable bonding area, i.e. separable, defined between the internal surfaces of the walls of the package or bag.

De nombreux emballages ou sachets de ce type sont également connus.Many such packages or sachets are also known.

La zone pelable a pour fonction de renforcer l'étanchéité de l'emballage ou sachet.The peelable area has the function of strengthening the tightness of packaging or sachet.

Elle a également pour fonction de permettre un contrôle de l'ouverture de l'emballage ou sachet. En effet la séparation de la zone pelable d'un emballage ou sachet indique à l'acheteur potentiel que cet emballage ou sachet a été précédemment ouvert.It also has the function of allowing a control of opening the package or sachet. Indeed the separation of the area peelable from a package or sachet indicates to the potential buyer that this packaging or sachet was previously opened.

Cette zone pelable peut être prévue sur l'intérieur ou sur l'extérieur des profilés de fermeture, par rapport au volume interne de l'emballage ou sachet.This peelable area can be provided on the inside or on the outside closure profiles, relative to the internal volume of the packaging or bag.

Généralement cette zone pelable est réalisée par apport d'une bande en matériau pelable, c'est à dire présentant un point de fusion inférieur à celui de la paroi du sachet ou emballage, sur le film composant ce dernier.Generally this peelable area is produced by adding a strip made of peelable material, i.e. with a melting point below that of the wall of the sachet or packaging, on the film making up the latter.

On trouvera un exemple de mise en oeuvre d'un tel emballage dans le document US-A-4 925 318.An example of implementation of such packaging can be found in US-A-4,925,318.

Il a cependant été constaté que les moyens jusqu'ici proposés pour réaliser ces emballages sont fort complexes et ne donnent pas totalement satisfaction. En particulier ils ne permettent pas toujours de garantir une étanchéité satisfaisante des emballages, notamment sur les extrémités de la bande pelable, au niveau des bords latéraux des emballages, du fait que la longueur des tronçons de matériau pelable acheminés sur le film composant l'emballage doit être inférieure à la largeur du film.However, it has been noted that the means hitherto proposed for making these packages are very complex and do not give completely satisfaction. In particular, they do not always guarantee a satisfactory sealing of packaging, especially on the ends of the peelable strip, at the side edges of the packages, because the length of the sections of peelable material conveyed on the film component packaging should be less than the width of the film.

On a tenté de remédier à cette difficulté en réalisant la zone pelable sans apport de matière, par traitement de surface du film.We tried to remedy this difficulty by making the peelable area without addition of material, by surface treatment of the film.

Cependant cette tentative ne donne pas non plus totalement satisfaction en raison notamment de sa complexité de mise en oeuvre.However, this attempt also does not give completely satisfaction due in particular to its complexity of implementation.

La présente invention a maintenant pour but d'améliorer les performances des emballages connus.The present invention now aims to improve the performance of known packaging.

Le but principal de la présente invention est de proposer des sachets ou emballages présentant une étanchéité supérieure à celle des sachets ou emballages antérieurs connus.The main purpose of the present invention is to provide sachets or packaging having a greater seal than that of the sachets or known prior packaging.

Le but précité est atteint dans le cadre de la présente invention, grâce à un procédé de fabrication d'emballages qui comprend les étapes qui consistent à acheminer des tronçons de bande ou liseré de matériau pelable sur un film destiné à former la paroi de l'emballage les tronçons possédant lors de leur dépôt sur le film , une longueur inférieure à la largeur de l'emballage recherché, à écraser au moins en extrémités chaque tronçon de sorte que après écrasement, les tronçons couvrent intégralement la largeur dudit emballage et à fixer chaque tronçon de matériau pelable sur le film.The above object is achieved in the context of the present invention, through a packaging manufacturing process that includes the steps which consist of conveying sections of tape or edging of material peelable on a film intended to form the wall of the packaging, the sections having a length less than the width when deposited on the film of the desired packaging, to crush at least at the ends each section so that after crushing, the sections fully cover the width of said packaging and to fix each section of peelable material on the movie.

La présente invention concerne également une machine pour la mise en oeuvre de ce procédé, ainsi que les emballages ainsi obtenus.The present invention also relates to a machine for implementation of this process, as well as the packaging thus obtained.

D'autres caractéristiques, buts et avantages de la présente invention, apparaítront à la lecture de la description détaillée qui va suivre, et en regard des dessins annexés, donnés à titre d'exemples non limitatifs, et sur lesquels :

  • les figures 1, 2 et 3 représentent schématiquement trois étapes successives de mise en oeuvre du procédé conforme à la présente invention, et
  • la figure 4 représente une vue en coupe transversale d'un profilé de fermeture intégrant un tronçon pelable, conforme à une variante de la présente invention.
Other characteristics, aims and advantages of the present invention will appear on reading the detailed description which follows, and with reference to the appended drawings, given by way of nonlimiting examples, and in which:
  • FIGS. 1, 2 and 3 schematically represent three successive stages of implementation of the method according to the present invention, and
  • Figure 4 shows a cross-sectional view of a closure profile incorporating a peelable section, according to a variant of the present invention.

On a schématisé sur les figures 1, 2 et 3 les trois étapes de base du procédé conforme à la présente invention.We have schematized in Figures 1, 2 and 3 the three basic steps of process according to the present invention.

Plus précisément sur ces figures on a schématisé:

  • sur la figure 1, un film 10 entraíné de préférence à défilement continu, dans le sens de sa longueur, dans une direction D,
  • sur la figure 2, des tronçons de bande ou liseré de matériau pelable 20 acheminés séquentiellement sur le film 10, transversalement à sa direction de déplacement D, avec un pas égal à celui des emballages à réaliser à partir du film, et
  • sur la figure 3, un étape d'écrasement des tronçons 20 et de fixation de ceux-ci sur le film 10.
More precisely in these figures we have schematized:
  • in FIG. 1, a film 10 preferably driven with continuous travel, in the direction of its length, in a direction D,
  • in FIG. 2, sections of strip or border of peelable material 20 conveyed sequentially on the film 10, transversely to its direction of movement D, with a pitch equal to that of the packages to be produced from the film, and
  • in FIG. 3, a step of crushing the sections 20 and fixing them on the film 10.

On notera à l'examen comparé des figures 2 et 3 que l'étape d'écrasement conduit à un allongement des tronçons 20. Ainsi bien que les tronçons 20 possèdent lors de leur dépôt sur le film 10, une longueur inférieure à la largeur du film 10, après écrasement, on peut obtenir selon la présente invention, des tronçons 20 qui couvrent intégralement la largeur du film 10 et par conséquent qui sont propre à garantir une étanchéité totale des emballages ultérieurement réalisés.It will be noted on the comparative examination of FIGS. 2 and 3 that the step of crushing leads to an elongation of the sections 20. As well as the sections 20 have, when deposited on the film 10, a length less than the width of the film 10, after crushing, it can be obtained according to the present invention, sections 20 which fully cover the width of the film 10 and therefore suitable for guaranteeing total tightness subsequent packaging.

En pratique les étapes d'écrasement et de fixation des tronçons 20 sur le film 10 peuvent être simultanées. Elles peuvent également être réalisées successivement. Dans ce dernier cas, de préférence, l'étape d'écrasement est réalisée avant l'étape de fixation.In practice, the steps of crushing and fixing the sections 20 on film 10 can be simultaneous. They can also be carried out successively. In the latter case, preferably, the step crushing is performed before the fixing step.

Ces étapes d'écrasement et de fixation sont de préférence réalisées entre deux machoires chauffées.These crushing and fixing steps are preferably carried out between two heated jaws.

Le matériau pelable constituant les tronçons 20, est un matériau dont le point de fusion ou de ramollissement est inférieur à celui du matériau composant la paroi principale de la feuille 10.The peelable material constituting the sections 20, is a material of which the melting or softening point is lower than that of the material composing the main wall of the sheet 10.

A titre d'exemple non limitatif, le matériau composant les tronçons pelables 20 est de préférence formé de copolymères d'oléfines, éthylène ou propylène.By way of nonlimiting example, the material making up the sections peelable 20 is preferably formed from copolymers of olefins, ethylene or propylene.

Egalement à titre d'exemple non limitatif, le matériau composant le film 10 est de préférence formé de polyoléfines. Also by way of nonlimiting example, the material making up the film 10 is preferably formed from polyolefins.

Dans le cadre de la présente invention, pour la mise en oeuvre du procédé précité dans des conditions satisfaisantes, on considère que les tronçons 20 de matériau pelable doivent présenter de préférence au moins une face de base plane destinée à être fixée sur le film 10. Pour le reste la section des tronçons 20 peut faire l'objet de nombreuses variantes. Les tronçons 20 peuvent ainsi être de section rectangulaire ou carrée, voire globalement arrondie.In the context of the present invention, for the implementation of the above-mentioned process under satisfactory conditions, it is considered that the sections 20 of peelable material should preferably have at least a flat base face intended to be fixed on the film 10. For the rest the section of sections 20 can be the subject of numerous variants. The sections 20 can thus be of rectangular or square section, or even globally rounded.

Par ailleurs, à titre d'exemple non limitatif , la largeur des tronçons 20 est de préférence comprise entre 1 et 10 mm, tandis que l'épaisséur des tronçons 20 est de préférence comprise entre 0,1 et 2 mm.Furthermore, by way of nonlimiting example, the width of the sections 20 is preferably between 1 and 10 mm, while the thickness of the sections 20 is preferably between 0.1 and 2 mm.

On a illustré sur les figures 1 à 3 les étapes d'un procédé consistant à déposer les tronçons de matériau pelable 20 transversalement sur le film 10. Cependant en variante le même procédé peut être mis en oeuvre par dépôt des tronçons 20 longitudinalement sur le film 10, c'est à dire parallèlement à leur longueur D.Illustrated in Figures 1 to 3 the steps of a process consisting depositing the sections of peelable material 20 transversely on the film 10. However, as a variant, the same method can be implemented by depositing the sections 20 longitudinally on the film 10, that is to say parallel to their length D.

Les tronçons 20 peuvent être partie intégrante des profilés de fermeture 30 et coextrudés avec ces derniers, comme on l'a schématisé sur la figure 4, ou être formés d'éléments séparés, acheminés sur le film 10 parallèlement auxdits profilés 30.The sections 20 can be an integral part of the profiles of closure 30 and coextruded therewith, as shown schematically on Figure 4, or be formed of separate elements, routed on the film 10 parallel to said sections 30.

Les emballages ou sachets peuvent être réalisés ultérieurement selon toute technique connue de l'homme de l'art, à partir de la feuille 10 comprenant des tronçons 20 de bande de matériau pelable conforme à la présente invention.The packaging or sachets can be produced later according to any technique known to a person skilled in the art, starting from sheet 10 comprising sections 20 of strip of peelable material conforming to the present invention.

De façon connue en soi, la bande pelable 20 est portée au contact de la surface en regard de l'emballage et fixée sur celle-ci par compression accompagnée d'un apport thermique.In a manner known per se, the peelable strip 20 is brought into contact of the surface facing the packaging and fixed thereon by compression accompanied by thermal input.

Les autres opérations classiques de conformation, remplissage et fermeture des emballages ne seront pas décrites plus en détail par la suite.The other conventional shaping, filling and Closing of the packages will not be described in more detail below.

On notera cependant que le procédé conforme à la présente invention consistant à acheminer les tronçons 20, à les écraser et à les fixer sur le film 10 peut être suivi d'une étape de stockage du.film, par exemple par enroulement, les emballages proprement dits étant réalisés ultérieurement en un lieu géographique pouvant être différent de celui de fixation des tronçons 20 sur le film 10.Note however that the process according to this invention of routing the sections 20, crushing them and fixing them film 10 can be followed by a film storage step, for example by winding, the actual packaging being produced subsequently in a geographical location which may be different from that of fixing the sections 20 on the film 10.

Cependant en variante, le procédé conforme à la présente invention consistant à acheminer les tronçons 20, à les écraser et à les fixer sur le film 10 peut être réalisé immédiatement en amont d'une machine d'emballage, par exemple une machine de type FFS, comprenant des moyens de conformation d'emballage à partir du film, de remplissage des emballages et de fermeture de ceux-ci.However, as a variant, the method according to the present invention consisting in routing the sections 20, crushing them and fixing them on the film 10 can be made immediately upstream of a machine packaging, for example an FFS type machine, comprising means of packaging conformation from the film, filling of packaging and closing thereof.

Une telle machine de type FFS peut comprendre un col de formage pour conformer le film à l'état tubulaire, une goulotte de remplissage qui débouche dans le tube ainsi formé, des moyens aptes à fixer entre eux les bords longitudinaux du film et des moyens aptes à réaliser séquentiellement des soudures transversales sur le film tubulaire pour délimiter les extrémités de chaque emballage.Such an FFS type machine may include a forming neck to conform the film to the tubular state, a filling chute which opens into the tube thus formed, means capable of fixing the longitudinal edges of the film and means capable of producing sequentially transverse welds on the tubular film to define the ends of each package.

Bien entendu la présente invention n'est pas limitée aux modes de réalisation particuliers qui viennent d'être décrits mais s'étend à toutes variantes conformes à son esprit.Of course, the present invention is not limited to the modes of particular realization which have just been described but extends to all variants according to his spirit.

La présente invention peut s'appliquer aux sachets dans lesquels les profilés de fermeture sont actionnés par un curseur.The present invention can be applied to sachets in which the closing profiles are activated by a slider.

Sur les dessins annexés, on a schématisé des tronçons 20 de matériau pelable qui couvrent pratiquement toute la largeur du film 10. Dans ce cas les emballages sont de préférence réalisés en superposant au film ainsi équipé des tronçons 20, un autre film de même largeur portant un profilé de fermeture complémentaire de celui du premier film, mais dépourvu de bande pelable.In the accompanying drawings, diagrams have been made of sections 20 of peelable material which covers practically the entire width of the film 10. In in this case the packaging is preferably made by superimposing on the film thus equipped with sections 20, another film of the same width carrying a closure profile complementary to that of the first film, but free of peelable tape.

Lorsque au contraire les emballages sont réalisés à partir d'une feuille unique repliée sur elle même ou conformée à l'état tubulaire, la longueur des tronçons 20 déposés sur le film 10 doit être de l'ordre de la moitié de la largeur du film 10, pour atteindre exactement la largeur de l'emballage final, après écrasement.When, on the contrary, the packaging is made from a single sheet folded back on itself or conformed to the tubular state, the length of the sections 20 deposited on the film 10 must be of the order of half the width of the film 10, to reach exactly the width of the final packaging, after crushing.

Claims (23)

  1. Method for making packages based on a film (10) and having at least one peelable zone; characterized in that it comprises steps consisting in conveying strip or border portions (20) of peelable material on a film (10) for forming the package wall, portions (20) having, at the time of their deposition on the film (10), a length shorter than the width of the package sought, in crushing each deposited portion (20), at least at the ends, such that, after crushing, the portions (20) fully cover the width of said package, and in fixing each portion (20) of peelable material onto the film (10).
  2. Method according to Claim 1, characterized in that the film (10) is also provided with complementary closure profile portions (30).
  3. Method according to one of Claims 1 and 2, characterized in that the steps of crushing and fixing the portions (20) onto the film (10) take place simultaneously.
  4. Method according to one of Claims 1 and 2, characterized in that the steps of crushing and fixing the portions (20) onto the film (10) take place in succession.
  5. Method according to Claim 4, characterized in that the crushing step takes place before the fixing step.
  6. Method according to one of Claims 1 to 5, characterized in that the steps of crushing and fixing take place between two heated jaws.
  7. Method according to one of Claims 1 to 6, characterized in that the peelable material constituting the portions (20) is a material with a melting or softening point below that of the material forming the principal wall of the sheet (10).
  8. Method according to one of Claims 1 to 7, characterized in that the material forming the peelable portions (20) is formed of olefin, ethylene or propylene, copolymers.
  9. Method according to one of Claims 1 to 8, characterized in that the material forming the film (10) is formed of polyolefins.
  10. Method according to one of Claims 1 to 9, characterized in that the portions (20) of peelable material have at least one planar base face for fixing onto the film (10).
  11. Method according to one of Claims 1 to 10, characterized in that the width of the portions (20) is between 1 and 10 mm.
  12. Method according to one of Claims 1 to 11, characterized in that the thickness of the portions (20) is between 0.1 and 2 mm.
  13. Method according to one of Claims 1 to 12, characterized in that the portions (20) of peelable material are deposited transversely onto the film (10).
  14. Method according to one of Claims 1 to 12, characterized in that the portions (20) of peelable material are deposited longitudinally onto the film (10).
  15. Method according to one of Claims 1 to 14, characterized in that the portions (20) of peelable material form an integral part of closure profile portions (30) coextruded with the latter.
  16. Method according to one of Claims 1 to 14, characterized in that the portions (20) of peelable material are formed of separate elements of closure profile portions (30) conveyed on the film (10) parallel to said profile portions (30).
  17. Method according to one of Claims 1 to 16, characterized in that the portions (20) of peelable material cover the entire width of the film (10), and the packages are produced by superposing on the film thus equipped with portions (20) another film of the same width bearing a closure profile portion complementing that of the first film but having no peelable strip.
  18. Method according to one of Claims 1 to 16, characterized in that the portions (20) of peelable material deposited on the film (10) have a length of the order of half the width of the film (10) in order to attain the width of the final package, after crushing.
  19. Machine for making packages based on a film (10) and having at least one peelable zone, characterized in that it comprises means capable of conveying strip or border portions (20) of peelable material on a film (10) for forming the wall of the package, the portions (20) having, at the time of their deposition on the film (10), a length shorter than the width of the package sought, means capable of crushing each deposited portion (20) at least at the ends such that, after crushing, the portions (20) fully cover the width of said package, and means capable of fixing each portion (20) of peelable material onto the film (10) during or after crushing.
  20. Machine according to Claim 19, characterized in that the film (10) is also provided with complementary closure profile portions (30).
  21. Machine according to one of Claims 19 and 20, characterized in that it comprises two heated jaws for implementing the operations of crushing and fixing.
  22. Package obtained by implementation of the method according to one of Claims 1 to 18.
  23. Package according to Claim 22, characterized in that it includes a slide for actuating profile portions (30) at the time of opening and also at the time of closure.
EP99961122A 1998-12-22 1999-12-21 Method for making a package comprising a peelable zone Expired - Lifetime EP1140481B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK99961122T DK1140481T3 (en) 1998-12-22 1999-12-21 Process for producing a peelable packing zone

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9816234A FR2787384B1 (en) 1998-12-22 1998-12-22 METHOD FOR MANUFACTURING A PACKAGE COMPRISING A PEELABLE AREA
FR9816234 1998-12-22
PCT/FR1999/003219 WO2000037246A1 (en) 1998-12-22 1999-12-21 Method for making a package comprising a peelable zone

Publications (2)

Publication Number Publication Date
EP1140481A1 EP1140481A1 (en) 2001-10-10
EP1140481B1 true EP1140481B1 (en) 2004-09-01

Family

ID=9534319

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99961122A Expired - Lifetime EP1140481B1 (en) 1998-12-22 1999-12-21 Method for making a package comprising a peelable zone

Country Status (15)

Country Link
US (1) US6589146B1 (en)
EP (1) EP1140481B1 (en)
JP (1) JP4396035B2 (en)
AR (1) AR021994A1 (en)
AT (1) ATE275034T1 (en)
AU (1) AU752163B2 (en)
BR (1) BR9916436A (en)
CA (1) CA2355699A1 (en)
DE (1) DE69919896T2 (en)
DK (1) DK1140481T3 (en)
ES (1) ES2226476T3 (en)
FR (1) FR2787384B1 (en)
NZ (1) NZ512376A (en)
PL (1) PL192032B1 (en)
WO (1) WO2000037246A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070287956A1 (en) * 2003-09-24 2007-12-13 Tal Michael G Method and apparatus for treatment of thrombosed hemodialysis access grafts and arterio venous fistulas
US7163133B2 (en) 2004-03-05 2007-01-16 S.C. Johnson Home Storage, Inc. Apparatus for and method of moving a slider along mating zipper elements
US7244222B2 (en) 2004-03-05 2007-07-17 S.C. Johnson Home Storage, Inc. Apparatus for and method of positioning a slider on mating zipper elements
US8784289B2 (en) * 2010-04-29 2014-07-22 Illinois Tool Works Inc. Process of forming a wide mouth gusseted bag with edge seals

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3491935A (en) * 1966-08-08 1970-01-27 Phillips Petroleum Co Method of forming a peelable seal
US3986914A (en) * 1972-02-11 1976-10-19 Uly-Pak, Inc. Heat-sealing method for plastic containers
US3960636A (en) * 1974-06-19 1976-06-01 Mobil Oil Corporation Method and apparatus for the production of shear seals in thermoplastic materials
DK576888D0 (en) * 1988-10-17 1988-10-17 Schur Int As Brdr PROCEDURE FOR MANUFACTURING PACKAGING PACKAGES WITH PREVIOUS WELDING CLOSE, SUCH PACKAGING WITH CLOSING PROFILE PARTS, AND SUPPLY MATERIALS FOR USING THIS PREPARATION
US5238306A (en) * 1989-05-19 1993-08-24 Reynolds Consumer Products, Inc. Method of producing a sealing system for a reclosable webbed-wall package, and system made
US5118203A (en) * 1991-04-19 1992-06-02 T W Kutter, Inc. Resealable packages and method and apparatus for producing same
US5725312A (en) * 1994-04-11 1998-03-10 Reynolds Consumer Products, Inc. Closure arrangement having a peelable seal
US5628566A (en) * 1996-01-29 1997-05-13 Reynolds Consumer Products, Inc. Profile sealing flange

Also Published As

Publication number Publication date
ES2226476T3 (en) 2005-03-16
DE69919896T2 (en) 2005-08-25
NZ512376A (en) 2003-06-30
US6589146B1 (en) 2003-07-08
FR2787384B1 (en) 2001-03-09
AR021994A1 (en) 2002-09-04
AU1784200A (en) 2000-07-12
DE69919896D1 (en) 2004-10-07
JP4396035B2 (en) 2010-01-13
EP1140481A1 (en) 2001-10-10
ATE275034T1 (en) 2004-09-15
AU752163B2 (en) 2002-09-05
PL192032B1 (en) 2006-08-31
BR9916436A (en) 2001-09-04
WO2000037246A1 (en) 2000-06-29
JP2002532304A (en) 2002-10-02
DK1140481T3 (en) 2004-12-20
PL348334A1 (en) 2002-05-20
CA2355699A1 (en) 2000-06-29
FR2787384A1 (en) 2000-06-23

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