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EP1631503A2 - Advanced packaging method and device, bags obtained and use thereof - Google Patents

Advanced packaging method and device, bags obtained and use thereof

Info

Publication number
EP1631503A2
EP1631503A2 EP04742734A EP04742734A EP1631503A2 EP 1631503 A2 EP1631503 A2 EP 1631503A2 EP 04742734 A EP04742734 A EP 04742734A EP 04742734 A EP04742734 A EP 04742734A EP 1631503 A2 EP1631503 A2 EP 1631503A2
Authority
EP
European Patent Office
Prior art keywords
opening
closing means
sachet
mouth
bag
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Withdrawn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
EP04742734A
Other languages
German (de)
French (fr)
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.)
S2F Flexico SARL
Original Assignee
S2F Flexico SARL
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 S2F Flexico SARL filed Critical S2F Flexico SARL
Publication of EP1631503A2 publication Critical patent/EP1631503A2/en
Withdrawn legal-status Critical Current

Links

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
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • B65D33/2516—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener
    • B65D33/2525—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener located between the fastener and the product compartment
    • 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
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • 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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/07—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S493/00—Manufacturing container or tube from paper; or other manufacturing from a sheet or web
    • Y10S493/916—Pliable container
    • Y10S493/927—Reclosable

Definitions

  • the present invention relates to the field of packaging bags.
  • the present invention relates to the field of packaging bags comprising opening / closing means capable of multiple successive openings and closings, for example and not limited to in the form of complementary profiles.
  • the object of the present invention is to improve the known sachets.
  • a packaging method which comprises the steps consisting in:. provide a bag comprising at its mouth, on the one hand opening / closing means capable of multiple successive openings and closings and on the other hand, at a distance from these, on the inside of the bag by relative to said opening / closing means, a breakable connecting veil,. introduce contents to be packaged in the sachet and. tightly close this sachet in tension on said content, said veil in contact with the content avoiding the application of constraints on the opening / closing means, but allowing, after rupture, free access to the content by means of said means opening / closing and then allowing the bag to be released in the closed state thanks to the distance separating the veil and the opening / closing means.
  • the present invention also relates to a packaging device comprising:
  • means for supplying a sachet comprising at its mouth, on the one hand opening / closing means capable of multiple successive openings and closings and on the other hand, at a distance from these, on the side of the inside the bag with respect to said opening / closing means, a breakable connecting veil,
  • the present invention finally relates to sachets comprising at their mouth, on the one hand opening / closing means capable of multiple successive openings and closings and on the other hand, at a distance from these, on the side of the inside the sachet relative to said opening / closing means, a breakable connecting veil, such that when the sachet is tightly closed in tension on a content, said veil in contact with the content avoids the application of stresses on the means opening / closing, but authorizes, after rupture, free access to the content via said opening / closing means and then allows the bag to be released in the closed state thanks to the distance separating the veil and the means d 'open close.
  • FIG. 1 schematically represents the basic principle of a sachet in accordance with the present invention tightened in the storage position on its contents
  • FIG. 2 schematically represents the same bag after a first opening
  • FIG. 3 represents a sectional view of the mouth of a bag according to a first embodiment of the present invention
  • FIG. 4 represents a sectional view of the mouth of a sachet, in accordance with a second embodiment of the present invention
  • FIG. 5 represents a sectional view of the mouth of a bag according to a third embodiment of the present invention
  • FIG. 6 schematically represents an example of application of the present invention.
  • FIG. 1 and 2 There is schematically shown in Figures 1 and 2 attached a bag according to the present invention, respectively in the tight storage position on its contents, and after a first opening.
  • the bag according to the present invention essentially comprises two main walls 10, 20, an opening / closing means 30 and a web 40 which connects the walls 10, 20 to each other on the inside of the opening / closing means 30 and at a distance therefrom.
  • the walls 10, 20 can be the subject of numerous embodiments. They are preferably walls made of thermoplastic material. These walls 10, 20 can be mono or multilayer (s) and mono or multi-material (x). If necessary, it may be a paper support coated with a layer of thermoplastic material, or else a layer of metallized thermoplastic material.
  • the opening / closing means 30 and the veil 40 extend parallel to each other across the mouth of the bag.
  • the methods of connecting the walls 10, 20 can be the subject of numerous variants.
  • the walls 10, 20 can be connected together, for example by welding or gluing, on their two sides perpendicular to the mouth and by means 30 and web 40, the ends of the walls 10, 20 opposite the mouth being initially separated but close together, superimposed and interconnected by any suitable means, for example by welding or gluing, once the content has been placed in the sachet.
  • the opening / closing means 30 can also be the subject of numerous embodiments.
  • They can be formed of complementary male 33 and female 34 profiles respectively arranged on the walls 10, 20 or on respective support webs 31, 32 linked to these. It may be additional means in the form of hooks. It may also be opening / closing means of the velvet / crochet type. All of these means are well known to those skilled in the art. They will therefore not be described in detail later.
  • these opening / closing means 30 can be controlled by a cursor 50.
  • FIG. 1 Such a cursor has been shown diagrammatically in FIG. 1 attached. Again it can be the subject of numerous embodiments.
  • Such a slider 50 preferably comprises a sole 52 which carries two side fabrics 54, 55 and a central wall 56 defining between them two non-parallel channels 57, 58 respectively receiving at least the top of one of the two support webs 31, 32 of the opening / closing means 30, so that, according to the direction of movement of the cursor 50, the latter urges the means 30 respectively upon opening and closing. If necessary, but this arrangement is not imperative, the central wall 56 can penetrate between the complementary profiles.
  • the present invention makes it possible to avoid any untimely and unintentional opening of the sachet, in particular during handling before use.
  • the internal section of the bag is increased by twice the value of the distance D separating the opening / closing means 30 and the veil 40.
  • the bag is thus released and the user can easily access the content 100 despite the initial state of compression thereof.
  • the distance D separating the opening / closing means 30 and the web 40 is typically of the order of 2 to 5 cm.
  • the configuration of the mouth of the bag comprises at least one welding step.
  • a closure assembly 300 formed of a sheet 302 folded in a U shape on itself and comprising the opening / closing means 30 at its opening contour, is welded outwardly concavity on the mouth of the bag between the walls 10 and 20.
  • the middle part of the sheet 302, that is to say the fold thereof plays the role of the veil 40.
  • the sheet 302 can be fixed, for example by bonding or welding, on the walls 10 and 20 over the entire height of its surface in contact with them.
  • the sheet 302 can be fixed to the walls 10 and 20 only near its central zone, at the level of the zones referenced 303 and 304 in FIG. 3.
  • the sheet 302 is also fixed to the walls 10 and 20 near its free edges, at the areas referenced 305 and 306 in FIG. 3.
  • FIG. 4 shows a second embodiment in accordance with the present invention of the mouth of a sachet which consists in folding over itself in W a sheet 312, in the form of a central fold 318 and two lateral folds 317 and 319, and to weld at 313 and 314 the top of the central fold 318 thus formed on the adjacent surfaces of the lateral elements of the sheet.
  • the lateral folds 317 and 319 can also be welded at 315 and 316 near the top of the mouth.
  • the opening / closing means 30 are provided inside the central fold 318, between the two lateral folds 317 and 319.
  • the means 30 may have come from material, in particular from extrusion, on the sheet 312, or reported and fixed by any appropriate means, in particular by welding or bonding thereto.
  • FIG. 5 shows a third embodiment of the mouth of a sachet in accordance with the present invention which consists in folding in a U on itself a sheet 320 forming the main walls 10 and 20 of the sachet, then at fix on the outside of this fold, a closure assembly comprising two support webs 31, 32 which carry respective means 33, 34.
  • the support webs 31, 32 can be fixed on the sheet 320 by any suitable means for example by welding or gluing.
  • the present invention is not limited to the particular embodiments which have just been described, but extends to all variants in accordance with its spirit.
  • the mouth comprising the means 30 and the veil 40 can be integrated for example in the fold of a bellows of a packaging bag.
  • the present invention may find particular application in the production of sachets for packaging diapers for babies or any equivalent means of protection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)

Abstract

The invention relates to a packaging method comprising the following steps: provision of a bag whose mouth comprises opening/closing means (30) for multiple successive openings and closings and a cleavable linking veil, located at a distance therefrom inside the bag in relation to said opening/closing means (30); introduction of contents (100) to be wrapped in the bag and tightening of said bag in order to close it, tension being applied to the contents (10); the veil (40) enters into contact with the contents (100) avoiding the application of stress on the opening/closing means, guaranteeing free access to the contents (100) via said opening/closing means (30) after tearing, enabling the bag to be relaxed in a closed state as a result of the distance (D) separating the veil (40) and the opening/closing means (30). The invention also relates to a packaging device and to bags thus obtained.

Description

PROCEDE ET DISPOSITIF PERFECTIONNES IMPROVED METHOD AND DEVICE
DΕMBALLAGE, SACHETS OBTENUS ET LEUR APPLICATIONUNPACKING, BAGS OBTAINED AND THEIR APPLICATION
La présente invention concerne le domaine des sachets d'emballage.The present invention relates to the field of packaging bags.
Plus précisément la présente invention concerne le domaine des sachets d'emballage comprenant des moyens d'ouverture/fermeture susceptibles de multiples ouvertures et fermetures successives, par exemple et non limitativement sous forme de profilés complémentaires.More specifically, the present invention relates to the field of packaging bags comprising opening / closing means capable of multiple successive openings and closings, for example and not limited to in the form of complementary profiles.
Le but de la présente invention est de perfectionner les sachets connus.The object of the present invention is to improve the known sachets.
Ce but est atteint dans le cadre de la présente invention, grâce à un procédé d'emballage qui comprend les étapes consistant à : . fournir un sachet comportant au niveau de son embouchure, d'une part des moyens d'ouverture/fermeture susceptibles de multiples ouvertures et fermetures successives et d'autre part, à distance de ceux-ci, du côté de l'intérieur du sachet par rapport auxdits moyens d'ouverture/fermeture, un voile de liaison sécable, . introduire un contenu à emballer dans le sachet et . refermer étroitement ce sachet en tension sur ledit contenu, ledit voile en contact avec le contenu évitant l'application de contraintes sur les moyens d'ouverture/fermeture, mais autorisant, après rupture, un libre accès au contenu par l'intermédiaire desdits moyens d'ouverture/fermeture et permettant alors un relâchement du sachet à l'état fermé grâce à la distance séparant le voile et les moyens d'ouverture/fermeture.This object is achieved in the context of the present invention, thanks to a packaging method which comprises the steps consisting in:. provide a bag comprising at its mouth, on the one hand opening / closing means capable of multiple successive openings and closings and on the other hand, at a distance from these, on the inside of the bag by relative to said opening / closing means, a breakable connecting veil,. introduce contents to be packaged in the sachet and. tightly close this sachet in tension on said content, said veil in contact with the content avoiding the application of constraints on the opening / closing means, but allowing, after rupture, free access to the content by means of said means opening / closing and then allowing the bag to be released in the closed state thanks to the distance separating the veil and the opening / closing means.
La présente invention concerne également un dispositif d'emballage comprenant :The present invention also relates to a packaging device comprising:
. des moyens de fourniture d'un sachet comportant au niveau de son embouchure, d'une part des moyens d'ouverture/fermeture susceptibles de multiples ouvertures et fermetures successives et d'autre part, à distance de ceux-ci, du côté de l'intérieur du sachet par rapport auxdits moyens d'ouverture/fermeture, un voile de liaison sécable,. means for supplying a sachet comprising at its mouth, on the one hand opening / closing means capable of multiple successive openings and closings and on the other hand, at a distance from these, on the side of the inside the bag with respect to said opening / closing means, a breakable connecting veil,
. des moyens permettant d'introduire un contenu à emballer dans le sachet et . des moyens aptes à refermer étroitement ce sachet en tension sur ledit contenu, ledit voile en contact avec le contenu évitant, l'application de contraintes sur les moyens d'ouverture/fermeture, mais autorisant, après rupture, un libre accès au contenu par l'intermédiaire desdits moyens d'ouverture/fermeture et permettant alors un relâchement du sachet à l'état fermé grâce à la distance séparant le voile et les moyens d'ouverture/fermeture. La présente invention concerne enfin les sachets comportant au niveau de leur embouchure, d'une part des moyens d'ouverture/fermeture susceptibles de multiples ouvertures et fermetures successives et d'autre part, à distance de ceux-ci, du côté de l'intérieur du sachet par rapport auxdits moyens d'ouverture/fermeture, un voile de liaison sécable, tel que lorsque le sachet est refermé étroitement en tension sur un contenu, ledit voile en contact avec le contenu évite l'application de contraintes sur les moyens d'ouverture/fermeture, mais autorise, après rupture, un libre accès au contenu par l'intermédiaire desdits moyens d'ouverture/fermeture et permette alors un relâchement du sachet à l'état fermé grâce à la distance séparant le voile et les moyens d'ouverture/fermeture.. means for introducing a content to be packaged into the sachet and. means capable of tightly closing this sachet in tension on said content, said veil in contact with the content avoiding the application of constraints on the opening / closing means, but allowing, after rupture, free access to the content by the 'Intermediate of said opening / closing means and then allowing a relaxation of the bag in the closed state thanks to the distance separating the veil and the opening / closing means. The present invention finally relates to sachets comprising at their mouth, on the one hand opening / closing means capable of multiple successive openings and closings and on the other hand, at a distance from these, on the side of the inside the sachet relative to said opening / closing means, a breakable connecting veil, such that when the sachet is tightly closed in tension on a content, said veil in contact with the content avoids the application of stresses on the means opening / closing, but authorizes, after rupture, free access to the content via said opening / closing means and then allows the bag to be released in the closed state thanks to the distance separating the veil and the means d 'open close.
D'autres caractéristiques, buts et avantages de la présente invention apparaîtront 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 : . la figure 1 représente schématiquement le principe de base d'un sachet conforme à la présente invention serré en position de stockage sur son contenu,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:. FIG. 1 schematically represents the basic principle of a sachet in accordance with the present invention tightened in the storage position on its contents,
. la figure 2 représente schématiquement le même sachet après une première ouverture,. FIG. 2 schematically represents the same bag after a first opening,
. la figure 3 représente une vue en coupe de l'embouchure d'un sachet conforme à un premier mode de réalisation de la présente invention, . la figure 4 représente une vue en coupe de l'embouchure d'un sachet, conforme à un deuxième mode de réalisation de la présente invention,. FIG. 3 represents a sectional view of the mouth of a bag according to a first embodiment of the present invention,. FIG. 4 represents a sectional view of the mouth of a sachet, in accordance with a second embodiment of the present invention,
. la figure 5 représente une vue en coupe de l'embouchure d'un sachet conforme à un troisième mode de réalisation de la présente invention, et . la figure 6 représente schématiquement un exemple d'application de la présente invention.. FIG. 5 represents a sectional view of the mouth of a bag according to a third embodiment of the present invention, and. FIG. 6 schematically represents an example of application of the present invention.
On a représenté schématiquement sur les figures 1 et 2 annexées un sachet conforme à la présente invention, respectivement en position de stockage serré sur son contenu, et après une première ouverture.There is schematically shown in Figures 1 and 2 attached a bag according to the present invention, respectively in the tight storage position on its contents, and after a first opening.
Comme on le voit sur ces figures, le sachet conforme à la présente invention comprend essentiellement deux parois principales 10, 20, un moyen d'ouverture/fermeture 30 et un voile 40 qui relie les parois 10, 20 entre elles sur l'intérieur du moyen d'ouverture/fermeture 30 et à distance de celui-ci.As can be seen in these figures, the bag according to the present invention essentially comprises two main walls 10, 20, an opening / closing means 30 and a web 40 which connects the walls 10, 20 to each other on the inside of the opening / closing means 30 and at a distance therefrom.
Les parois 10, 20 peuvent faire l'objet de nombreux modes de réalisation. II s'agit de préférence de parois en matériau thermoplastique. Ces parois 10, 20 peuvent être mono ou multicouche(s) et mono ou multi-matériau(x). Le cas échéant il peut s'agir d'un support papier revêtu d'une couche de matériau thermoplastique, ou encore d'une couche de matériau thermoplastique métallisé. Le moyen d'ouverture/fermeture 30 et le voile 40 s'étendent parallèlement l'un à l'autre en travers de l'embouchure du sachet.The walls 10, 20 can be the subject of numerous embodiments. They are preferably walls made of thermoplastic material. These walls 10, 20 can be mono or multilayer (s) and mono or multi-material (x). If necessary, it may be a paper support coated with a layer of thermoplastic material, or else a layer of metallized thermoplastic material. The opening / closing means 30 and the veil 40 extend parallel to each other across the mouth of the bag.
Pour le reste les modalités de liaison des parois 10, 20 peuvent faire l'objet de nombreuses variantes. A titre d'exemple non limitatif, les parois 10, 20 peuvent être reliées entre elles, par exemple par soudure ou collage, sur leur deux côtés perpendiculaires à l'embouchure et au moyen 30 et voile 40, les extrémités des parois 10, 20 opposées à l'embouchure étant initialement séparées mais rapprochées, superposées et reliées entre elles, par tous moyens appropriés, par exemple par soudure ou collage, une fois le contenu disposé dans le sachet.For the rest, the methods of connecting the walls 10, 20 can be the subject of numerous variants. By way of nonlimiting example, the walls 10, 20 can be connected together, for example by welding or gluing, on their two sides perpendicular to the mouth and by means 30 and web 40, the ends of the walls 10, 20 opposite the mouth being initially separated but close together, superimposed and interconnected by any suitable means, for example by welding or gluing, once the content has been placed in the sachet.
Les moyens 30 d'ouverture/fermeture peuvent également faire l'objet de nombreux modes de réalisation.The opening / closing means 30 can also be the subject of numerous embodiments.
Ils peuvent être formés de profilés complémentaires mâle 33 et femelle 34 disposés respectivement sur les parois 10, 20 ou sur des voiles supports respectifs 31, 32 liés à celles-ci. Il peut s'agir de moyens complémentaires en forme de crochets. Il peut encore s'agir de moyens d'ouverture/fermeture du type velours/crochet. Tous ces moyens sont bien connus de l'homme de l'art. Ils ne seront donc pas décrits dans le détail par la suite.They can be formed of complementary male 33 and female 34 profiles respectively arranged on the walls 10, 20 or on respective support webs 31, 32 linked to these. It may be additional means in the form of hooks. It may also be opening / closing means of the velvet / crochet type. All of these means are well known to those skilled in the art. They will therefore not be described in detail later.
Le cas échéant ces moyens d'ouverture/fermeture 30 peuvent être commandés par un curseur 50.Where appropriate, these opening / closing means 30 can be controlled by a cursor 50.
Un tel curseur a été schématisé sur la figure 1 annexée. La encore il peut faire l'objet de nombreux modes de réalisation.Such a cursor has been shown diagrammatically in FIG. 1 attached. Again it can be the subject of numerous embodiments.
Un tel curseur 50 comprend de préférence une semelle 52 qui porte deux toiles latérales 54, 55 et un muret central 56 définissant entre eux deux canaux 57, 58 non parallèles recevant respectivement au moins le sommet de l'un des deux voiles support 31, 32 du moyen d'ouverture/fermeture 30, de sorte que selon le sens de déplacement du curseur 50, celui-ci sollicite le moyen 30 respectivement à l'ouverture et à la fermeture. Le cas échéant, mais cette disposition n'est pas impérative, le muret central 56 peut pénétrer entre les profilés complémentaires.Such a slider 50 preferably comprises a sole 52 which carries two side fabrics 54, 55 and a central wall 56 defining between them two non-parallel channels 57, 58 respectively receiving at least the top of one of the two support webs 31, 32 of the opening / closing means 30, so that, according to the direction of movement of the cursor 50, the latter urges the means 30 respectively upon opening and closing. If necessary, but this arrangement is not imperative, the central wall 56 can penetrate between the complementary profiles.
Comme on le voit sur la figure 1 lorsque après avoir introduit un contenu 100 dans le sachet ainsi formé, celui-ci est serré et refermé sur le contenu 100, le voile 40 vient au contact du contenu 100 et interdit l'application de contraintes, provenant de la pression interne du sachet, sur le moyen d'ouverture/fermeture 30. Ainsi la présente invention permet d'éviter toute ouverture intempestive et non intentionnelle du sachet, notamment lors d'une manipulation avant utilisation.As can be seen in FIG. 1 when, after having introduced a content 100 into the bag thus formed, the latter is tightened and closed over the content 100, the web 40 comes into contact with the content 100 and prohibits the application of constraints, from the internal pressure of the sachet, on the medium opening / closing 30. Thus, the present invention makes it possible to avoid any untimely and unintentional opening of the sachet, in particular during handling before use.
En revanche, comme on le voit sur la figure 2, une fois le voile 40 rompu après une première ouverture, la section interne du sachet est augmentée de deux fois la valeur de la distance D séparant le moyen d'ouverture/fermeture 30 et le voile 40. Le sachet est ainsi relâché et l'utilisateur peut aisément accéder au contenu 100 malgré l'état de compression initiale de celui-ci.On the other hand, as seen in FIG. 2, once the veil 40 has broken after a first opening, the internal section of the bag is increased by twice the value of the distance D separating the opening / closing means 30 and the veil 40. The bag is thus released and the user can easily access the content 100 despite the initial state of compression thereof.
A titre d'exemple non limitatif, la distance D séparant le moyen d'ouverture/fermeture 30 et le voile 40 est typiquement de l'ordre de 2 à 5cm.By way of nonlimiting example, the distance D separating the opening / closing means 30 and the web 40 is typically of the order of 2 to 5 cm.
On va maintenant décrire plusieurs modes de réalisation préférentiels, et non limitatifs de l'embouchure du sachet conforme à la présente invention, en regard des figures 3 à 5 annexées.We will now describe several preferred embodiments, and not limiting of the mouth of the bag according to the present invention, with reference to Figures 3 to 5 attached.
Comme- on le voit sur l'ensemble de ces figures, de préférence dans le cadre de la présente invention, la conformation de l'embouchure du sachet comprend au moins une étape de soudure.As seen in all of these figures, preferably in the context of the present invention, the configuration of the mouth of the bag comprises at least one welding step.
Selon la figure 3, un ensemble de fermeture 300 formé d'une feuille 302 repliée en U sur elle-même et comportant les moyens d'ouverture/fermeture 30 au niveau de son contour d'ouverture, est soudé concavité vers l'extérieur sur l'embouchure du sachet entre les parois 10 et 20. La partie médiane de la feuille 302, c'est-à-dire le pli de celle-ci joue le rôle du voile 40. La feuille 302 peut être fixée, par exemple par collage ou soudage, sur les parois 10 et 20 sur l'intégralité de la hauteur de sa surface en contact avec celles-ci. Cependant en variante la feuille 302 peut être fixée sur les parois 10 et 20 seulement à proximité de sa zone médiane, au niveau des zones référencées 303 et 304 sur la figure 3. De préférence la feuille 302 est également fixée sur les parois 10 et 20 à proximité de ses bords libres, au niveau des zones référencées 305 et 306 sur la figure 3.According to FIG. 3, a closure assembly 300 formed of a sheet 302 folded in a U shape on itself and comprising the opening / closing means 30 at its opening contour, is welded outwardly concavity on the mouth of the bag between the walls 10 and 20. The middle part of the sheet 302, that is to say the fold thereof plays the role of the veil 40. The sheet 302 can be fixed, for example by bonding or welding, on the walls 10 and 20 over the entire height of its surface in contact with them. However, as a variant, the sheet 302 can be fixed to the walls 10 and 20 only near its central zone, at the level of the zones referenced 303 and 304 in FIG. 3. Preferably the sheet 302 is also fixed to the walls 10 and 20 near its free edges, at the areas referenced 305 and 306 in FIG. 3.
On a représenté sur la figure 4 un deuxième mode de réalisation conforme à la présente invention de l'embouchure d'un sachet qui consiste à replier sur elle-même en W une feuille 312, sous forme d'un pli central 318 et de deux plis latéraux 317 et 319, et à souder en 313 et 314 le sommet du pli central 318 ainsi formé sur les surfaces adjacentes des éléments latéraux de la feuille. Le cas échéant on peut également souder les plis latéraux 317 et 319 en 315 et 316 à proximité du sommet de l'embouchure. Les moyens d'ouverture/fermeture 30 sont prévus à l'intérieur du pli central 318, entre les deux plis latéraux 317 et 319. Les moyens 30 peuvent être venus de matière, notamment venus d'extrusion, sur la feuille 312, ou rapportés et fixés par tous moyens appropriés, notamment par soudure ou collage sur celle-ci.FIG. 4 shows a second embodiment in accordance with the present invention of the mouth of a sachet which consists in folding over itself in W a sheet 312, in the form of a central fold 318 and two lateral folds 317 and 319, and to weld at 313 and 314 the top of the central fold 318 thus formed on the adjacent surfaces of the lateral elements of the sheet. If necessary, the lateral folds 317 and 319 can also be welded at 315 and 316 near the top of the mouth. The opening / closing means 30 are provided inside the central fold 318, between the two lateral folds 317 and 319. The means 30 may have come from material, in particular from extrusion, on the sheet 312, or reported and fixed by any appropriate means, in particular by welding or bonding thereto.
On a représenté sur la figure 5 un troisième mode de réalisation de l'embouchure d'un sachet conforme à la présente invention qui consiste à replier en U sur elle-même une feuille 320 composant les parois principales 10 et 20 du sachet, puis à fixer sur l'extérieur de ce pli, un ensemble de fermeture comprenant deux voiles support 31, 32 qui portent des moyens respectifs 33, 34. La encore les voiles support 31, 32 peuvent être fixés sur la feuille 320 par tous moyens appropriés par exemple par soudure ou collage. 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.FIG. 5 shows a third embodiment of the mouth of a sachet in accordance with the present invention which consists in folding in a U on itself a sheet 320 forming the main walls 10 and 20 of the sachet, then at fix on the outside of this fold, a closure assembly comprising two support webs 31, 32 which carry respective means 33, 34. Again the support webs 31, 32 can be fixed on the sheet 320 by any suitable means for example by welding or gluing. Of course the present invention is not limited to the particular embodiments which have just been described, but extends to all variants in accordance with its spirit.
Comme cela est schématisé sur la figure 6, l'embouchure comprenant les moyens 30 et le voile 40 peut être intégrée par exemple dans le pli d'un soufflet de sachet d'emballage.As shown schematically in Figure 6, the mouth comprising the means 30 and the veil 40 can be integrated for example in the fold of a bellows of a packaging bag.
La présente invention peut trouver notamment application dans la réalisation de sachets d'emballage de couches pour bébés ou tous moyens de protection équivalents.The present invention may find particular application in the production of sachets for packaging diapers for babies or any equivalent means of protection.
Dans ce contexte elle permet en particulier de réduire le volume de stockage, en autorisant une forte compression du contenu, tout en interdisant une ouverture intempestive avant utilisation. In this context, it makes it possible in particular to reduce the storage volume, by allowing strong compression of the content, while preventing inadvertent opening before use.

Claims

REVENDICATIONS
1. Procédé d'emballage caractérisé en ce qu'il comprend les étapes consistant à :1. A packaging method characterized in that it comprises the steps consisting in:
. fournir un sachet comportant au niveau de son embouchure, d'une part des moyens d'ouverture/fermeture (30) susceptibles de multiples ouvertures et fermetures successives et d'autre part, à distance de ceux-ci, du côté de l'intérieur du sachet par rapport auxdits moyens d'ouverture/fermeture (30), un voile de liaison (40) sécable, . introduire un contenu (100) à emballer dans le sachet et. provide a bag comprising at its mouth, on the one hand opening / closing means (30) capable of multiple successive openings and closings and on the other hand, at a distance from these, on the interior side of the bag relative to said opening / closing means (30), a breakable connecting veil (40),. introduce a content (100) to be packaged in the sachet and
. refermer étroitement ce sachet en tension sur ledit contenu (100), ledit voile (40) en contact avec le contenu (100) évitant l'application de contraintes sur les moyens d'ouverture/fermeture (30), mais autorisant, après rupture, un libre accès au contenu (100) par l'intermédiaire desdits moyens d'ouverture/fermeture (30) et permettant alors un relâchement du sachet à l'état fermé grâce à la distance (D) séparant le voile (40) et les moyens d'ouverture/fermeture (30).. tightly close this tensioned sachet on said content (100), said web (40) in contact with the content (100) avoiding the application of stresses on the opening / closing means (30), but allowing, after rupture, free access to the content (100) via said opening / closing means (30) and then allowing the sachet to be released in the closed state thanks to the distance (D) separating the web (40) and the means opening / closing (30).
2. Procédé selon la revendication 1, caractérisé en ce que l'étape de fourniture du sachet comprend une étape de soudure au niveau de l'embouchure de celui-ci pour conformer ladite embouchure.2. Method according to claim 1, characterized in that the step of supplying the sachet comprises a step of welding at the mouth of the latter to conform said mouth.
3. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que l'étape de fourniture consiste à fournir un ensemble de fermeture (300) formé d'une feuille (302) repliée en U sur elle-même et comportant les moyens d'ouverture/fermeture (30) au niveau de son contour d'ouverture, et à souder cet ensemble (300) concavité vers l'extérieur sur l'embouchure du sachet entre les parois (10, 20).3. Method according to one of claims 1 or 2, characterized in that the supplying step consists in providing a closure assembly (300) formed of a sheet (302) folded in a U on itself and comprising the opening / closing means (30) at its opening contour, and to weld this assembly (300) concavity towards the outside on the mouth of the bag between the walls (10, 20).
4. Procédé selon la revendication 3, caractérisé en ce que la feuille (302) est fixée sur les parois (10, 20) au moins à proximité de sa zone médiane. 4. Method according to claim 3, characterized in that the sheet (302) is fixed to the walls (10, 20) at least near its median zone.
5. Procédé selon la revendication 4, caractérisé en ce que la feuille5. Method according to claim 4, characterized in that the sheet
(302) est également fixée sur les parois (10, 20) à proximité de ses bords libres.(302) is also fixed to the walls (10, 20) near its free edges.
6. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que l'étape de fourniture consiste à replier sur elle-même en W une feuille (312), sous forme d'un pli central (318) et de deux plis latéraux (317, 319), et à souder (313, 314) le sommet du pli central (318) ainsi formé sur les surfaces adjacentes des éléments latéraux de la feuille. 6. Method according to one of claims 1 or 2, characterized in that the supplying step consists in folding over itself in W a sheet (312), in the form of a central fold (318) and two lateral folds (317, 319), and welding (313, 314) the top of the central fold (318) thus formed on the adjacent surfaces of the lateral elements of the sheet.
7. Procédé selon la revendication 6, caractérisé en ce qu'il comprend en outre l'étape consistant à souder les plis latéraux (317, 319) à proximité du sommet de l'embouchure.7. Method according to claim 6, characterized in that it further comprises the step consisting in welding the lateral folds (317, 319) near the top of the mouth.
8. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que l'étape de fourniture consiste à replier en U sur elle-même une feuille (320) composant les parois principales (10, 20) du sachet, puis à fixer sur l'extérieur de ce pli, un ensemble de fermeture comprenant deux voiles support (31, 32) qui portent des moyens d'ouverture/fermeture respectifs (33, 34).8. Method according to one of claims 1 or 2, characterized in that the supplying step consists in folding in a U on itself a sheet (320) composing the main walls (10, 20) of the sachet, then at fix on the outside of this fold, a closure assembly comprising two support webs (31, 32) which carry respective opening / closing means (33, 34).
9. Procédé selon l'une des revendications 1 à 8, caractérisé en ce que les moyens d'ouverture/fermeture (30) comprennent un curseur (50).9. Method according to one of claims 1 to 8, characterized in that the opening / closing means (30) comprise a cursor (50).
10. Procédé selon l'une des revendications 1 à 9, caractérisé en ce que le remplissage du sachet est opéré par l'extrémité de celui-ci opposée à son embouchure.10. Method according to one of claims 1 to 9, characterized in that the filling of the sachet is operated by the end of the latter opposite to its mouth.
11. Procédé selon l'une des revendications 1 à 10, caractérisé en ce que la distance (D) séparant les moyens d'ouverture/fermeture (30) et le voile (40) est comprise entre 2 et 5 cm.11. Method according to one of claims 1 to 10, characterized in that the distance (D) separating the opening / closing means (30) and the web (40) is between 2 and 5 cm.
12. Dispositif d'emballage caractérisé en ce qu'il comprend :12. Packaging device characterized in that it comprises:
. des moyens de fourniture d'un sachet comportant au niveau de son embouchure, d'une part des moyens d'ouverture/fermeture (30) susceptibles de multiples ouvertures et fermetures successives et d'autre part, à distance de ceux-ci, du côté de l'intérieur du sachet par rapport auxdits moyens d'ouverture/fermeture (30), un voile de liaison (40) sécable,. means for supplying a bag comprising at its mouth, on the one hand opening / closing means (30) capable of multiple successive openings and closings and on the other hand, at a distance from these, from the side of the interior of the bag relative to said opening / closing means (30), a breakable connecting veil (40),
. des moyens permettant d'introduire un contenu (100) à emballer dans le sachet et . des moyens aptes à refermer étroitement ce sachet en tension sur ledit contenu (100), ledit voile (40) en contact avec le contenu (100) évitant l'application de contraintes sur les moyens d'ouverture/fermeture (30), mais autorisant, après rupture, un libre accès au contenu (100) par l'intermédiaire desdits moyens d'ouverture/fermeture (30) et permettant alors un relâchement du sachet à l'état fermé grâce à la distance (D) séparant le voile (40) et les moyens d'ouverture/fermeture (30) .. means for introducing a content (100) to be packaged into the sachet and. means capable of tightly closing this sachet under tension on said content (100), said web (40) in contact with the content (100) avoiding the application of stresses on the opening / closing means (30), but allowing , after rupture, free access to the content (100) via said opening / closing means (30) and then allowing the sachet to be released in the closed state thanks to the distance (D) separating the web (40 ) and the opening / closing means (30).
13. Dispositif selon la revendication 12, caractérisé en ce qu'il comprend des moyens aptes à opérer une soudure au niveau de l'embouchure du sachet pour conformer ladite embouchure.13. Device according to claim 12, characterized in that it comprises means capable of effecting a weld at the mouth of the bag to conform said mouth.
14. Dispositif selon l'une des revendications 12 ou 13, caractérisé en ce qu'il comprend des moyens aptes à fournir un ensemble de fermeture (300) formé d'une feuille (302) repliée en U sur elle-même et comportant les moyens d'ouverture/fermeture (30) au niveau de son contour d'ouverture, et à souder cet ensemble (300) concavité vers l'extérieur sur l'embouchure du sachet entre les parois (10, 20).14. Device according to one of claims 12 or 13, characterized in that it comprises means capable of providing a closure assembly (300) formed of a sheet (302) folded in a U on itself and comprising the means opening / closing (30) at its opening contour, and to weld this assembly (300) concavity towards the outside on the mouth of the bag between the walls (10, 20).
15. Dispositif selon la revendication 14, caractérisé en ce qu'il comprend des moyens aptes à fixer la feuille (302) sur les parois (10, 20) au moins à proximité de sa zone médiane.15. Device according to claim 14, characterized in that it comprises means able to fix the sheet (302) on the walls (10, 20) at least near its median zone.
16. Dispositif selon la revendication 15, caractérisé en ce qu'il comprend des moyens aptes à fixer la feuille (302) sur les parois (10, 20) à proximité de ses bords libres. 16. Device according to claim 15, characterized in that it comprises means able to fix the sheet (302) on the walls (10, 20) near its free edges.
17. Dispositif selon l'une des revendications 12 ou 13, caractérisé en ce qu'il comprend des moyens aptes à replier sur elle-même en W une feuille17. Device according to one of claims 12 or 13, characterized in that it comprises means able to fold over itself in W a sheet
(312), sous forme d'un pli central (318) et de deux plis latéraux (317, 319), et à souder (313, 314) le sommet du pli central (318) ainsi formé sur les surfaces adjacentes des éléments latéraux de la feuille. (312), in the form of a central fold (318) and two lateral folds (317, 319), and to weld (313, 314) the top of the central fold (318) thus formed on the adjacent surfaces of the lateral elements of the sheet.
18. Dispositif selon la revendication 17, caractérisé en ce qu'il comprend en outre des moyens aptes à souder les plis latéraux (317, 319) à proximité du sommet de l'embouchure.18. Device according to claim 17, characterized in that it further comprises means suitable for welding the lateral folds (317, 319) near the top of the mouth.
19. Dispositif selon l'une des revendications 12 ou 13, caractérisé en ce qu'il comprend des moyens aptes à replier en U sur elle-même une feuille (320) composant les parois principales (10, 20) du sachet, puis à fixer sur l'extérieur de ce pli, un ensemble de fermeture comprenant deux voiles support (31, 32) qui portent des moyens d'ouverture/fermeture respectifs (33, 34).19. Device according to one of claims 12 or 13, characterized in that it comprises means able to fold in a U on itself a sheet (320) composing the main walls (10, 20) of the sachet, then to fix on the outside of this fold, a closure assembly comprising two support webs (31, 32) which carry respective opening / closing means (33, 34).
20. Dispositif selon l'une des revendications 12 à 19, caractérisé en ce que les moyens d'ouverture/fermeture (30) comprennent un curseur (50). 20. Device according to one of claims 12 to 19, characterized in that the opening / closing means (30) comprise a cursor (50).
21. Dispositif selon l'une des revendications 12 à 20, caractérisé en ce qu'il comprend des moyens aptes à remplir le sachet par l'extrémité de celui-ci opposée à son embouchure.21. Device according to one of claims 12 to 20, characterized in that it comprises means capable of filling the sachet by the end of the latter opposite to its mouth.
22. Dispositif selon l'une des revendications 12 à 21, caractérisé en ce que la distance (D) séparant les moyens d'ouverture/fermeture (30) et le voile (40) est comprise entre 2 et 5 cm.22. Device according to one of claims 12 to 21, characterized in that the distance (D) separating the opening / closing means (30) and the web (40) is between 2 and 5 cm.
23. Sachet d'emballage destiné à la mise en oeuvre du procédé conforme à l'une des revendications 1 à 11 et/ou à l'emballage d'un contenu dans un sachet, à l'aide du dispositif conforme à l'une des revendications 12 à 22, caractérisé en ce qu'il comporte au niveau de son embouchure, d'une part des moyens (30) d'ouverture/fermeture susceptibles de multiples ouvertures et fermetures successives et d'autre part, à distance de ceux-ci, du côté de l'intérieur du sachet par rapport auxdits moyens d'ouverture/fermeture, un voile de liaison sécable (40), tel que lorsque le sachet est refermé étroitement en tension sur un contenu, ledit voile (40) en contact avec le contenu évite l'application de contraintes sur les moyens d'ouverture/fermeture (30), mais autorise, après rupture, un libre accès au contenu par l'intermédiaire desdits moyens d'ouverture/fermeture (30) et permette alors un relâchement du sachet à l'état fermé grâce à la distance séparant le voile (40) et les moyens d'ouverture/fermeture (30).23. Sachet packaging intended for the implementation of the process according to one of claims 1 to 11 and / or for the packaging of a content in a sachet, using the device according to one claims 12 to 22, characterized in that it comprises at its mouth, on the one hand means (30) of opening / closing capable of multiple successive openings and closings and on the other hand, at a distance from those -this, on the inside of the bag by relative to said opening / closing means, a breakable connecting veil (40), such that when the sachet is tightly closed in tension on a content, said veil (40) in contact with the content avoids the application of stresses on the opening / closing means (30), but authorizes, after rupture, free access to the content via said opening / closing means (30) and then allows the bag to be released in the closed state thanks to the distance separating the web (40) and the opening / closing means (30).
24. Application du sachet conforme à la revendication 23 à l'emballage de couches ou moyens de protection équivalents. 24. Application of the sachet according to claim 23 to the packaging of layers or equivalent protective means.
EP04742734A 2003-05-16 2004-05-14 Advanced packaging method and device, bags obtained and use thereof Withdrawn EP1631503A2 (en)

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FR0305887A FR2854870B1 (en) 2003-05-16 2003-05-16 IMPROVED METHOD AND DEVICE FOR PACKAGING, SACHETS OBTAINED AND THEIR APPLICATION
PCT/FR2004/001185 WO2004103843A2 (en) 2003-05-16 2004-05-14 Packaging method and device, packaging bags

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US7552572B2 (en) 2009-06-30
AU2004241167B2 (en) 2010-09-02
US20070157560A1 (en) 2007-07-12
AU2004241167A1 (en) 2004-12-02
WO2004103843A2 (en) 2004-12-02
FR2854870A1 (en) 2004-11-19

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