EP1873081B1 - Sachet et son procédé de fabrication - Google Patents

Sachet et son procédé de fabrication Download PDF

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Publication number
EP1873081B1
EP1873081B1 EP06012839A EP06012839A EP1873081B1 EP 1873081 B1 EP1873081 B1 EP 1873081B1 EP 06012839 A EP06012839 A EP 06012839A EP 06012839 A EP06012839 A EP 06012839A EP 1873081 B1 EP1873081 B1 EP 1873081B1
Authority
EP
European Patent Office
Prior art keywords
bag
film
side gusset
strip
closure
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.)
Active
Application number
EP06012839A
Other languages
German (de)
English (en)
Other versions
EP1873081A1 (fr
Inventor
Jochen Brauer
Marcus Kujat
Detlef Stöppelmann
Alfons Kruse
Darius Maseiker
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.)
Nordenia Deutschland Halle GmbH
Original Assignee
Nordenia Deutschland Halle GmbH
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 Nordenia Deutschland Halle GmbH filed Critical Nordenia Deutschland Halle GmbH
Priority to DE502006001764T priority Critical patent/DE502006001764D1/de
Priority to AT06012839T priority patent/ATE410376T1/de
Priority to PL06012839T priority patent/PL1873081T3/pl
Priority to ES06012839T priority patent/ES2310875T3/es
Priority to EP06012839A priority patent/EP1873081B1/fr
Publication of EP1873081A1 publication Critical patent/EP1873081A1/fr
Application granted granted Critical
Publication of EP1873081B1 publication Critical patent/EP1873081B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B31B70/74—Auxiliary operations
    • B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B70/84—Forming or attaching means for filling or dispensing contents, e.g. valves or spouts
    • B31B70/855—Forming valves integral with the containers
    • 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
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5861—Spouts
    • B65D75/5866—Integral spouts
    • 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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/10—Bags or like containers made of paper and having structural provision for thickness of contents with gusseted sides
    • 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
    • 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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B50/812—Applying tabs, patches, strips or strings on blanks or webs
    • B31B50/8125—Applying strips or strings, e.g. tear strips or strings
    • 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
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/262—Folding sheets, blanks or webs involving longitudinally folding, i.e. along a line parallel to the direction of movement
    • B31B70/266—Folding sheets, blanks or webs involving longitudinally folding, i.e. along a line parallel to the direction of movement involving gusset-forming
    • 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
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/36—Folding sheets, blanks or webs by continuously feeding them to stationary members, e.g. plates, ploughs or cores
    • 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
    • B31B70/8131—Making bags having interengaging closure elements
    • 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
    • B31B70/8131—Making bags having interengaging closure elements
    • B31B70/8133—Applying the closure elements in the cross direction
    • 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
    • B31B70/84—Forming or attaching means for filling or dispensing contents, e.g. valves or spouts

Definitions

  • the invention relates to a foil pouch which is formed by folding a foil, has a front surface, a back surface, an inserted first side fold and an inserted second side fold and is closed by a longitudinal sealing seam and a top seal seam, wherein on the inner surface of the first side fold below the top seal a reclosure is arranged, which consists of two strips of material with integrally formed strip-shaped closure elements, wherein the outer edges between the first gusset and the adjacent front and rear surfaces are made of folded edges and wherein the first gusset forms a reclosable chute when the gusset is opened along a line of weakness disposed above the strip-shaped closure elements.
  • Film bags with the described structure are suitable for the packaging of bulk material, such as dry food for animals, and have a reclosure, which allows the contents of the package in portions, ie in portions, to dispense or to remove.
  • the removal takes place through an opening in the first gusset, wherein the gusset can be pulled out after opening the reclosure and can be used as a chute.
  • the opening is resealable.
  • the strip-shaped closure elements are executable as tongue and groove elements, which are manually connected to each other by pressure and then form a detent or clip connection.
  • the closure is also referred to as zipper closure.
  • a foil bag with the features described above is made WO 2004/092025 A2 known. It consists of a film folded into a tube. The hose produced by folding has on-side gussets and is closed on the shell side by means of a longitudinal sealing seam. Affixed to the inner surface of the film bag is a reclosable strip which removably connects one of the gussets to the adjacent front and back surfaces of the bag. The reclosure strip is longer than the width of the gusset and is secured to the inside of the gusset as well as the adjacent bag surfaces that form the front and back surfaces of the bag. The dimensional stability of the film bag is unsatisfactory.
  • the chute opens very far, the bag largely loses its shape on the sampling side. Due to the low dimensional stability, the handling of the opened bag is difficult. Especially with large bags, the handling of the opened bag and the metered removal of contents requires considerable skill of the user.
  • one strip of material of the reclosure is attached to the inner surface of the side pleat and the other strip of material is attached to the adjacent front and back surfaces of the film bag, respectively.
  • the mating closure members disposed on the inner surface of the gusset or on the inner surfaces of the front or rear surface, respectively must be engaged with each other. This requires a sufficiently accurate positioning of the material strip portions and precise folds. Inaccuracies in the folding or positioning of the material strip on the film web can lead to disruptions in the continuous bag production. Bag making is made considerably more difficult by applying the reclosures.
  • the invention has for its object to provide a gusseted bag which is dimensionally stable in use and has a resealable removal opening in the gusset, which utilizes the entire width of the gusset.
  • the attachment of the reclosure should be possible in the course of bag production in a simple manner.
  • the object is achieved by a foil bag having the features specified in claim 1.
  • the weakening line for opening the gusset is arranged according to the invention in the area of the reclosure, wherein one of the two strips of material of the reclosure is connected below the line of weakness with the inner surface of the gusset and wherein the other strip of material above the line of weakness is also connected to the inner surface of the gusset and a the Has region of the weakening line bridging portion, at the end of a strip-shaped closure element of the reclosure is formed.
  • the outer edges formed as folded edges are stiffened according to the invention by parallel longitudinal sealing seams, which extend up to the top seal seam extend and are interrupted in the reclosure.
  • the reclosure forms a preassembled zipper closure of two strips of material, the strip-shaped closure elements are engaged with each other.
  • the strips of material are placed on the initially flat film or a flat film web and connected thereto. Both strips of material are fastened to the film web by sealing seams which extend parallel to the closure elements.
  • the line of weakness may consist of a tear perforation that is permeable to air.
  • the line of weakness is preferably framed by a sealed seam which connects the strip of material of the reclosure bridging the line of weakness with the inner surface of the lateral fold and in an overlapping area of the two strips of material a peelable connection between the two strips of material Material strip forms.
  • the peelable seam section fulfills a sealing function until the first opening of the film bag and dissolves when the removal opening is torn open.
  • the film web passes through folding stations in which formed by folding front and back surfaces of the film bag and gussets are inserted.
  • the application of the reclosures can be easily integrated into continuous processes for the production of film bags.
  • the longitudinal sealing seams provided for edge reinforcement are recessed in the area of the reclosure. On the tightness of the film bag, this has no effect, since the outer edges of the first side fold are folding edges and the additionally attached longitudinal sealing seams have no sealing function.
  • the foil pouches are manufactured as flat-laid pouches and filled with filling material later in filling systems, which is filled at the upper end of the pouch, for example, by a bottom-side opening or, before attachment of the head sealing seams.
  • the flat foil bags are stacked.
  • the reclosures at the folding or folding edges of the film bag are strongly bent.
  • the material strips, in particular the strip-shaped closure elements have considerable elastic restoring forces which counteract the buckling and result in the flat-lying foil bags spreading open in the region of the first side fold. With increasing stack height then there is a risk that the stacked bags slip.
  • the strip-shaped closure elements of the reclosure are interrupted according to a preferred embodiment of the invention at the creases of the film bag by a punched or cut.
  • the reclosure fastened to the inner surface of the first gusset preferably has a length corresponding to the width of the gusset and extends to the outer edges of the bag. Centered between the two ends, the closure elements are severed to avoid springing back the flattened gusset.
  • all four outer edges of the film bag are stiffened by longitudinal sealing seams.
  • the longitudinal sealing seam closing the foil bag on the shell side can be integrated in an edge which bounds the second side fold.
  • the longitudinal seam seam closing the foil bag on the shell side connects the second side fold with the front or back surface of the bag.
  • the front surface and the rear surface of the bag are connected by a vertical additional sealing seam, which is arranged next to the first gusset, extends to the top seal and the gusset region above the reclosure of a filling material space of the bag separates.
  • a vertical additional sealing seam which is arranged next to the first gusset, extends to the top seal and the gusset region above the reclosure of a filling material space of the bag separates.
  • a transverse sealing seam which extends into the region of the second gussets and separates the bag section above the reclosure of the filling material space of the bag.
  • the transverse seal seam expediently runs obliquely to the top-seal seam, wherein the distance between the transverse sealing seam and the head seam at the first end, which is adjacent to the vertical additional sealing seam, is smaller than at the other end in the region of the second side fold.
  • the section of the film bag which is delimited by the top seal seam and the transverse seal seam can also be used for a handle punching.
  • the foil bag To open the foil bag for the first time, the foil bag must be opened along the intended weakening line in the area of the reclosure. On the outside of the film bag cut lines can be printed to facilitate handling. Furthermore, the line of weakness expediently has a bow, which forms a tab for pulling out the chute after opening the side fold.
  • the invention also provides a method according to claim 12 for the production of the film bag described.
  • Claims 13 to 16 relate to preferred embodiments of the method.
  • the film bag shown in the figures is formed by folding a film 1 and has a front surface 2, a back surface 3, an inserted first side fold 4 and an inserted second side fold 5.
  • the foil bag is closed by a longitudinal sealing seam 6, a top seal seam 7 and a bottom seam seam, not shown.
  • a reclosure 8 is arranged, which consists of two strips of material 23, 24 with integrally formed strip-shaped closure elements 14.
  • the side fold 4 must be opened along a weakening line 21, which is arranged above the strip-shaped closure elements 14 which are detachably engaged with each other. Thereafter, the first gusset 4 forms a resealable chute 10th
  • the weakening line 21 is arranged for opening the side fold 4 in the region of the reclosure 8.
  • the one material strip 23 of the reclosure 8 is connected below the weakening line 21 with the inner surface of the side fold 4.
  • the other material strip 24 is also connected to the inner surface of the side fold 4 above the weakening line 21 and has a section bridging the region of the weakening line, at the end of which the strip-shaped closure element 14 of the reclosure 8 associated therewith is formed.
  • the integrally formed on the two strips of material 23, 24 closure elements 14 are formed as tongue and groove elements and form a so-called zipper closure, the closure elements are manually latched together by pressure.
  • the ends of the pairwise cooperating closure elements 14 are firmly connected to each other, for. B. welded.
  • the strip-shaped closure elements 14 are interrupted by a punched-16 or a cut. The measure prevents a spreading of the gusset area as a result of a bending stress of the strip-shaped projections of the closure elements 14.
  • the outer edges 11 between the lower gusset 4 and the adjacent front and rear surfaces 2, 3 consist of folded edges, which are stiffened by parallel longitudinal sealing seams 12.
  • the longitudinal sealing seams 12 extend from a bottom seam, not shown, to the top seal seam 7 and are interrupted in the region of the reclosure, at least in the region of the strip-shaped closure elements 14.
  • the second gusset 5 is bounded by outer edges 11 ', which are reinforced by longitudinal sealing seams 12'.
  • the longitudinal sealing seams 12 at the outer edges 11 'of the second side fold extend without interruption from a bottom seam seam, not shown, to the top seal seam 7.
  • the reclosure 8 disposed on the inner surface of the first gusset 4 has a length corresponding to the width of the gusset 4 and extends to the outer edges 11 of the bag.
  • the front surface 2 and the rear surface 3 of the bag are connected by a vertical additional sealing seam 17, which is arranged next to the first side fold 4, extends up to the top seal seam 7 and separates the side fold region above the reclosure from a filling space 18 of the bag.
  • the vertical additional sealing seam 17 prevents filling material from accumulating on the side area above the reclosure when emptying the bag and may hinder emptying.
  • a transverse seam 19 which extends into the region of the second gusset 5 and the entire bag section above the reclosure strip 8 separates from the Gregutraum 18 of the bag.
  • the transverse seal seam 19 extends obliquely to the top seal seam 7, wherein the distance between the transverse sealing seam 19 and the top seal seam 7 at the first end adjacent to the vertical additional sealing seam 17 is smaller than at the other end in the region of the second side fold 5.
  • the transverse sealing seam 19 favors a complete, residue-free emptying of the bag.
  • the section of the film bag which is delimited by the head seam 7 and the transverse seam 19 can additionally be used for a handle punching 20.
  • a planar film web 26 weakening lines 21 are introduced in a first method step, which extend transversely to the web direction and are arranged in a strip-shaped section of the material web, from which a gusset 4 is formed in a later method step.
  • the reclosures 8 consist of two strips of material 23, 24, which are detachably connected by the engagement strip-shaped closure elements 14.
  • the material strips 23, 24 which are detachably connected to one another are placed on the flat film web 26 in the region of the weakening lines 21 in such a way that one of the two material strips 24 bridges the associated weakening line and the strip-shaped closure elements 14 extend parallel to the weakening line 21.
  • the material strips 23, 24 of the reclosures are connected to the flat film web 26 by sealing seams 27, 28, which are arranged on both sides of the strip-shaped closure elements 14 and parallel to these.
  • the film web 26 passes through a folding station, not shown, in which the film web is folded and a web with a front surface 2, a back surface 3 and inserted side folds 4, 5 is formed.
  • the foil web then passes through other stations, also not shown, in which the folded edges stiffen with longitudinal sealing seams 12 and the superimposed film layers are joined to form a bag-shaped sections consisting of bag sections, from which the foil bags are separable. In the area of the reclosure, the stiffening of the folding edges serving longitudinal sealing seams 12 are interrupted.
  • the weakening lines 21 consist of an air-permeable perforation.
  • a sealed seam 28 is placed around the weakening line as a closed frame.
  • the sealing seam 28 connects the strips of material bridging the lines of weakness with the film web 26 and forms a peelable connection 28 'between the two strips of material 23, 24 in an overlapping region of the strip of material forming the reclosure.
  • the arrangement of the sealed seams 27, 28, 28' is shown in FIG Fig. 7 shown.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Bag Frames (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)

Claims (16)

  1. Sachet en film qui est formé par pliage d'un film (1), comporte une surface frontale (2), une surface postérieure (3), un premier pli latéral marqué (4) ainsi qu'un deuxième pli latéral marqué (5) et qui est fermé par un joint soudé longitudinal (6) ainsi que par un joint soudé de tête (7),
    dans lequel, sur la surface interne du premier pli latéral (4), en dessous du joint soudé de tête (7), est disposé un système de refermeture (8) qui est composé de deux bandes de matériau (23, 24) sur lesquelles sont formés des éléments de fermeture en forme de baguettes (14),
    dans lequel les arêtes extérieures (11), entre le premier pli latéral (4) et la surface frontale ou postérieure adjacente (2, 3), sont composées d'arêtes de pliage et
    dans lequel le premier pli latéral (4) constitue un bec refermable (10) lorsque le pli latéral (4) est ouvert le long d'une ligne d'affaiblissement (21) disposée au dessus des éléments de fermeture en forme de baguettes (14),
    caractérisé en ce que la ligne d'affaiblissement (21) permettant d'ouvrir le pli latéral (4) est disposée au niveau du système de refermeture (8),
    l'une des bandes de matériau (23) du système de refermeture (8) située en dessous de la ligne d'affaiblissement (21) étant reliée à la surface interne du pli latéral (4) et l'autre bande de matériau (24) située au dessus de la ligne d'affaiblissement (21) étant également reliée à la surface interne du pli latéral (4) et présentant une section enjambant la zone de la ligne d'affaiblissement (21), section à l'extrémité de laquelle est formé l'élément de fermeture en forme de baguette (14) qui lui est associé du système de refermeture (8) et
    que les arêtes extérieures (11) réalisées sous forme d'arêtes de pliage sont raidies par des joints soudés longitudinaux (12) s'étendant en parallèle qui s'étendent jusqu'au joint soudé de tête (7) et sont interrompus au niveau du système de refermeture (8).
  2. Sachet en film selon la revendication 1, caractérisé en ce que la ligne d'affaiblissement est encadrée par un joint soudé qui relie les bandes de matériau (24) enjambant la ligne d'affaiblissement à la surface interne du pli latéral (4) et établit, dans une zone de chevauchement des deux bandes de matériau (23, 24), une liaison pelable entre les bandes de matériau (23, 24).
  3. Sachet en film selon la revendication 1 ou 2, caractérisé en ce que les éléments de fermeture en forme de baguettes (14) sont interrompus au niveau des arêtes de pliage du sachet en film par une perforation (16) ou une découpe.
  4. Sachet en film selon une des revendications 1 à 3, caractérisé en ce que le système de refermeture (8) fixé sur la surface interne du premier pli latéral (4) a une longueur équivalant à la largeur du pli latéral et s'étend jusqu'aux arêtes extérieures (11) du sachet.
  5. Sachet en film selon une des revendications 1 à 4, caractérisé en ce que les extrémités des éléments de fermeture (14) interagissant par paires sont reliées fixement les unes aux autres.
  6. Sachet en film selon une des revendications 1 à 5, caractérisé en ce que le joint soudé longitudinal (6) fermant le sachet de film au niveau de l'enveloppe relie le deuxième pli latéral (5) à la surface frontale ou postérieure (2, 3) du sachet et constitue une arête extérieure.
  7. Sachet en film selon une des revendications 1 à 6, caractérisé en ce que la surface frontale (2) et la surface postérieure (3) du sachet sont reliées par un joint soudé vertical supplémentaire (17) qui est disposé près du premier pli latéral (4), s'étend jusqu'au joint soudé de tête (7) et sépare la zone du pli latéral située au dessus du système de refermeture d'une chambre de produit de remplissage (18) du sachet.
  8. Sachet en film selon la revendication 7, caractérisé en ce qu'à l'extrémité inférieure du joint soudé vertical supplémentaire (17) se raccorde un joint soudé transversal (19) qui s'étend jusqu'au niveau du deuxième pli latéral (5) et sépare la zone du pli latéral située au dessus de la bande de refermeture (8) de la chambre de remplissage (18) du sachet.
  9. Sachet en film selon la revendication 8, caractérisé en ce que le joint soudé transversal (19) s'étend à l'oblique par rapport au joint soudé de tête (7), la distance entre le joint soudé transversal (19) et le joint soudé de tête (7) étant plus petite à la première extrémité adjacente au joint soudé vertical supplémentaire (17) qu'à l'autre extrémité au niveau du deuxième pli latéral (5).
  10. Sachet en film selon la revendication 8 ou 9, caractérisé en ce que la section limitée par le joint soudé de tête (7) et le joint soudé transversal (19) du sachet en film comporte une découpe formant poignée (20).
  11. Sachet en film selon une des revendications 1 à 10, caractérisé en ce que la ligne d'affaiblissement (21) présente une courbe (25) qui, après l'ouverture du pli latéral, forme une patte (20) permettant de tirer le bec (10) vers l'extérieur.
  12. Procédé de fabrication de sachets en film selon une des revendications 1 à 11, comportant les étapes opératoires suivantes :
    a) dans une bande de film plane, on pratiques des lignes d'affaiblissement (21) qui s'étendent transversalement par rapport au sens de la bande et sont disposées dans une section en forme de ruban de la bande de matériau, dans laquelle un pli latéral (4) est formé au cours d'une étape opératoire ultérieure d) ;
    b) des systèmes de refermeture (8) composés de deux bandes de matériau (23, 24) qui sont reliées de manière dissociable par l'intervention d'éléments de fermeture en forme de baguettes (14) sont posés au niveau des lignes d'affaiblissement (21) transversalement au sens de la bande sur la bande de film plane de manière à ce qu'une des deux de bandes de matériau (24) enjambe la ligne d'affaiblissement (21) qui lui est associée et que les éléments de fermeture en forme de baguettes (14) s'étendent parallèlement à la ligne d'affaiblissement (21) ;
    c) les bandes de matériau (23, 24) des systèmes de refermeture (8) sont reliés à la bande de film plane par des joints soudés qui sont disposés des deux côtés des éléments de fermeture en forme de baguettes (14) et parallèlement à ceux-ci ;
    d) la bande de film est ensuite pliée, une bande multicouche étant constituée d'une surface frontale (2), d'une surface postérieure (3) et de plis latéraux marqués (4, 5) ;
    e) les arêtes de pliage sont raidies par des joints soudés longitudinaux (12) qui sont interrompus au niveau du système de refermeture (8) ;
    f) grâce à d'autres joints soudés, les couches de film superposées sont reliées en un cordon de sachets composés de sections en forme de sachets dont les sachets en film peuvent être séparés.
  13. Procédé selon la revendication 12, dans lequel, dans l'étape opératoire c), un joint soudé est posé sous forme d'un cadre fermé autour de la ligne d'affaiblissement (21) qui relie les bandes de matériau (24) enjambant la ligne d'affaiblissement à la bande de film et qui établit, dans une zone de chevauchement des bandes de matériau formant le système de refermeture, une liaison pelable entre les deux bandes de matériau (23, 24).
  14. Procédé selon la revendication 12 ou 13, dans lequel, dans l'étape opératoire a), des perforations sont pratiquées sous forme de lignes d'affaiblissement (21) dans la bande de film plane.
  15. Procédé selon une des revendications 12 à 14, dans lequel les éléments de fermeture en forme de baguettes (14) des bandes de matériau constituant les systèmes de refermeture (8) sont séparés ou pourvus d'une entaille aux endroits qui sont associés à la ligne de pliage du pli latéral.
  16. Procédé selon une des revendications 12 à 15, dans lequel les extrémités des éléments de fermeture (14) en prise d'enclenchement sont reliées fixement.
EP06012839A 2006-06-22 2006-06-22 Sachet et son procédé de fabrication Active EP1873081B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE502006001764T DE502006001764D1 (de) 2006-06-22 2006-06-22 Folienbeutel und Verfahren zu seiner Herstellung
AT06012839T ATE410376T1 (de) 2006-06-22 2006-06-22 Folienbeutel und verfahren zu seiner herstellung
PL06012839T PL1873081T3 (pl) 2006-06-22 2006-06-22 Worek foliowy i sposób jego wytwarzania
ES06012839T ES2310875T3 (es) 2006-06-22 2006-06-22 Bolsa de laminas y procedimiento para su fabricacion.
EP06012839A EP1873081B1 (fr) 2006-06-22 2006-06-22 Sachet et son procédé de fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06012839A EP1873081B1 (fr) 2006-06-22 2006-06-22 Sachet et son procédé de fabrication

Publications (2)

Publication Number Publication Date
EP1873081A1 EP1873081A1 (fr) 2008-01-02
EP1873081B1 true EP1873081B1 (fr) 2008-10-08

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Application Number Title Priority Date Filing Date
EP06012839A Active EP1873081B1 (fr) 2006-06-22 2006-06-22 Sachet et son procédé de fabrication

Country Status (5)

Country Link
EP (1) EP1873081B1 (fr)
AT (1) ATE410376T1 (fr)
DE (1) DE502006001764D1 (fr)
ES (1) ES2310875T3 (fr)
PL (1) PL1873081T3 (fr)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
USD621280S1 (en) 2003-03-25 2010-08-10 Mark Steele Side access flexible package
US11845587B2 (en) 2020-05-18 2023-12-19 Illinois Tool Works Inc. Resealable bag enclosure

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PL2145830T3 (pl) 2008-07-17 2013-12-31 Mondi Halle Gmbh Płaskoleżący worek foliowy do pakowania sypkiego produktu pakowanego
ES2367457T3 (es) * 2008-11-14 2011-11-03 Nordenia Deutschland Halle Gmbh Bolsa envase hecha de material en película.
US8784289B2 (en) * 2010-04-29 2014-07-22 Illinois Tool Works Inc. Process of forming a wide mouth gusseted bag with edge seals
DE102011017073A1 (de) * 2011-04-15 2012-10-18 Nordfolien Gmbh Behälter zum Verpacken von Füllgütern und Verfahren zur Bearbeitung einer Materialbahn
EP2535287B1 (fr) * 2011-06-17 2014-01-15 Mondi AG Sachet doté d'une fermeture réutilisable comprenant une bride de fermeture dans le pli latéral
EP2535292B1 (fr) * 2011-06-17 2013-12-25 Mondi AG Sac doté d'une aide à l'ouverture sur le pli latéral
DE102012002290A1 (de) 2012-02-07 2013-08-08 Bernhard Fink Verpackung
JP7127985B2 (ja) * 2014-07-22 2022-08-30 ソシエテ・デ・プロデュイ・ネスレ・エス・アー 取っ手を備えている再閉鎖可能なパッケージ、並びにこのようなパッケージを作製する方法及び装置
DE102014116820A1 (de) * 2014-11-18 2016-05-19 Mondi Consumer Packaging Technologies Gmbh Seitenfaltenbeutel sowie Verfahren zur Herstellung eines Seitenfaltenbeutels
EP3085263B1 (fr) 2015-06-20 2020-11-25 AB Merculor Fermeture pour emballage en carton pliable de type à sommet triangulaire et son étanchéité
US20210269196A1 (en) * 2020-03-02 2021-09-02 Illinois Tool Works Inc. Flexible enclosure having a seal and method and system for making the same
CN116494597A (zh) * 2022-01-27 2023-07-28 上海洲泰轻工机械制造有限公司 一种四边封包装袋及其制备设备和制备方法

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DE29715847U1 (de) * 1997-09-04 1999-01-07 Bischof Und Klein Gmbh & Co, 49525 Lengerich Seitenfaltenbeutel oder -sack
US6164826A (en) * 1998-10-09 2000-12-26 Reynolds Consumer Products Inc. Resealable spout for side-gusseted packages
US6325543B1 (en) * 2000-08-25 2001-12-04 Illinois Tool Works Inc. Gusseted zipper bag
DE20115181U1 (de) * 2000-10-07 2002-01-03 Nordenia Deutschland Steinfeld Als Seitenfalten-Beutel bzw. -Sack ausgebildete Verpackung für Schüttgüter
FR2821610B1 (fr) * 2001-03-01 2003-08-29 Masterfoods Sac a aliments et notamment sac a aliments de type en granules
US7144159B2 (en) * 2003-01-29 2006-12-05 Illinois Tool Works Inc. Gusseted reclosable package with slider-operated zipper
US6971794B2 (en) * 2003-04-15 2005-12-06 Innoflex Incorporated Package having reclosable pour spout and method of forming same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD621280S1 (en) 2003-03-25 2010-08-10 Mark Steele Side access flexible package
US11845587B2 (en) 2020-05-18 2023-12-19 Illinois Tool Works Inc. Resealable bag enclosure

Also Published As

Publication number Publication date
EP1873081A1 (fr) 2008-01-02
ES2310875T3 (es) 2009-01-16
DE502006001764D1 (de) 2008-11-20
ATE410376T1 (de) 2008-10-15
PL1873081T3 (pl) 2009-04-30

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