EP0796800B1 - Poche pour des matériaux liquides, pâteux, granulaires ou pulvérulents ou pour des petits objets - Google Patents

Poche pour des matériaux liquides, pâteux, granulaires ou pulvérulents ou pour des petits objets Download PDF

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Publication number
EP0796800B1
EP0796800B1 EP97103921A EP97103921A EP0796800B1 EP 0796800 B1 EP0796800 B1 EP 0796800B1 EP 97103921 A EP97103921 A EP 97103921A EP 97103921 A EP97103921 A EP 97103921A EP 0796800 B1 EP0796800 B1 EP 0796800B1
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EP
European Patent Office
Prior art keywords
foil
pouch
base
cross
walls
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Expired - Lifetime
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EP97103921A
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German (de)
English (en)
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EP0796800A1 (fr
Inventor
Rodney Haydn Imer
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Individual
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Individual
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/008—Standing pouches, i.e. "Standbeutel"
    • 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
    • B65D31/08—Bags or like containers made of paper and having structural provision for thickness of contents with block bottoms

Definitions

  • the invention relates to a packaging bag for liquid and pasty and granular or powdery Fabrics or small parts.
  • a packaging bag is described in EP 0580989 B1 with a front wall, a back wall, at least a side wall and a floor, these walls essentially in planes perpendicular to the ground plane are arranged and the bag of film sections made of a thin, flexible material, in particular Plastic material is built, and each Front wall and film sections forming the rear wall with the foil sections forming the side walls each at their edges by a weld or Adhesive seam are connected so that the Outer edges of the bound edges point in the same direction.
  • US-A-3739977 describes a packaging bag which consists of a seamless section of a tubular Plastic film is made by in their Longitudinal folds created by welding are used to form a rectangular cross-sectional shape with opposite side wall pairs.
  • the bottom of the packaging bag will by inward folding sections of each other opposite side walls formed, the edges of which by one lying on a center line of the floor surface Weld seam are interconnected. Consequently shows the packaging bag on the bottom of his An outward weld seam on the bottom.
  • the invention has for its object a stable, standing packaging bags in particular rectangular shape with the above characteristics to create from thin film material, which in Ratio to the filling volume of the pack Foil area needed and because of the structured Form also used thin film material can be as with existing stand-up pouches.
  • the packaging bag according to the invention has the further Advantage that he can travel at high speeds comparable to the filling and sealing speeds for cans and glass containers are filled and can be sealed. This ability that due to the special bottom shape of the invention Packaging bag is reached, connected to the Manufacturing method that is an open box-like Creates form that is stable and at high speeds transported with the help of conveyor belt devices can be.
  • fill and Sealing systems especially for known types of film were developed and the single or up Use about four filling heads, which in turn the rate of the filling and sealing process up to Limit approx. 120 units per minute. That rate was achieved for these by these packs Markets acceptable, but it is not acceptable for extensive mass production e.g. the Food industry, which types of filling up to 2,000 units demand per minute.
  • Such high rates can only with rotating multi-head filling systems or with filling systems arranged in rows, such as those used for filling used by bottles, glass containers or cans be achieved where the packaging forms in are stable and stable and thus the necessary Dimensional stability for transporting under high Have speed.
  • the invention creates solutions to the limited Possible uses of existing flexible film packaging forms overcome by making a thin flexible film pack provides which less Material used as existing Forms in one presentation, in one essential transport higher rate when empty and is to be filled as existing packs.
  • the basic idea of the invention is a pack that in an open state (before being filled and sealed is) has a particularly cubic-rectangular shape and consists of four rectangular walls on what the floor joins integrally without any Connection form between walls and floor necessary is.
  • a preferred embodiment of the invention exists in a packaging bag with cubic-rectangular Shape and rectangular bottom. But there are also others Shapes with triangular or polygonal bottom possible.
  • the side panels are made with the front and rear Walls glued to the vertical corners of the pack, welded or connected with other known methods, so that through the connection vertical reinforcing Ribs arise as they are commonly known are.
  • These ribs have a width of up to 10 mm or more, but usually about 3 to 8 mm.
  • the floor can consist of a single layer of film, the is integral with all four walls.
  • the packaging bag can be made from a single one using the following procedure Foil layer are produced on a Worktop is laid out. It becomes a placed vertical fitting, its cross-sectional dimensions with the internal cross-sectional dimensions of the Pack are identical. The fitting is exactly over placed the section of the slide that would later be the bottom the pack is supposed to form, and the walls are against pressed the fitting by the foil sections, which should form the walls, upwards be folded. On the lines where the edges of everyone Wall meet with the neighboring walls, form the vertical corners of the pack. The slides the meeting walls are connected and thus form the vertical stiffening ribs.
  • the pack which is now in its cubic rectangular State, can either by filled the vertical inner fitting and then be sealed at the top or from the fitting withdrawn, transported to the filling station and only then be filled and sealed.
  • the latter Preference will be given to this Wrapped packs at a higher production rate (by using several fittings and several filling stations) can be produced, than this through the filling process over the vertical inner fitting with the subsequent sealing is possible.
  • the final one Sealing the top by known methods be made, or in the case of filling other locking methods could be achieved through the inner fitting such as. with preformed lids or with Flat films are made.
  • the resulting film waste limit it is also possible to deviate from that procedure described above, of two film strips go out, as below using an exemplary embodiment is described at right angles are placed on top of one another in a cross shape and in the overlap area to form the bottom Foil section on their facing each other Surfaces with each other at least in partial areas be welded or glued. It arises from it a cross-shaped piece of film that in the already described Way is processed.
  • Fig. 1 shows a piece of film 1 for producing a Packaging bag on which the film sections, which to form the vertical walls, namely a Foil section 2.1 for the front wall, a foil section 2.3 for the rear wall and foil sections 2.2 and 2.4 for the side walls as recorded lines are indicated.
  • the Film section 4 Over the film section 4, the Bottom of the package is a fitting 3 arranged.
  • Fig. 2 shows a further stage of the manufacturing process for the packaging bag after the foil sections 2.1 to 2.4 to form the vertical Walls upward to the inner fitting 3 were tested.
  • the vertical walls are on their vertical Edges along the dashed lines Lines 5 using known methods Welded or glued seams connected to one another in such a way that each the outer edges of the interconnected Point the edges in the same direction and in this way vertical stiffening ribs 7 arise on the four vertical edges of the pack, as for example in FIGS. 5, 6, 8 and 9 are shown and further below using these figures still to be described.
  • Fig. 1 forms the piece of film 1 is a complete rectangle.
  • Fig. 2 To the unfolding, the shaping and the connection or sealing of the edges in Fig. 2 with 1.1 labeled, outward-facing, bag-like excess parts of the film (see Fig. 2) cut off.
  • FIG. 3 The output stage of another embodiment of the Manufacturing process for the packaging bag is shown in Fig. 3.
  • one already prepared piece of film cut into a cross shape 6 assumed each arm of the cross the width of one of the finished walls 2.1 ', 2.2', 2.3 ' and 2.4 ', plus the width of the vertical Reinforcing ribs 7.
  • the front wall 2.1 ', the Rear wall 2.3 'and the side walls 2.2' and 2.4 ', i.e. the arms of the cross will then go up against that inner fitting 3 folded and the edges of the vertical Walls are drawn along the dashed lines 5, as already described above, connected with each other.
  • the fitting 3 to form the pack be arranged on the film piece 1 'or 1 "in such a way that its horizontal edges either as in Fig. 4th shown, parallel to the corresponding side edges of the piece of film 1 ', the in 4 shows the position of the cross 6 ', or the horizontal edges can match the corresponding Edges of the piece of film 1 "an angle, for example of 45 °, with one layer of the Cross 6 "arises, as shown in Fig. 4A is.
  • FIG 5 shows one according to the manufacturing method according to FIG 1 and 2 or Fig. 3 manufactured finished Packaging bags before filling and closing.
  • FIG. 6 shows a packaging bag similar to that shown in FIG Fig. 5 made of transparent material, being good too can be seen that the bottom 4 of the pack from a single layer of film and at the transitions nothing between the floor and the vertical walls Welding or adhesive seams are necessary, but an integral connection of the film material available is.
  • Fig. 6 are also the vertical reinforcing ribs 7 well recognizable that the standing up of the Ensure the packaging bag.
  • FIG. 7 in which the area 8, in which the bottom 4 merges into the front wall 2.1, shown enlarged is.
  • Fig. 8 in which the area 9 is enlarged is shown, in which the rear wall 2.3 is connected to the side wall 2.4, is the training the reinforcing transverse ribs 7 can be seen well.
  • the two outwardly facing parts of the walls 2.3 and 2.4 are slightly apart for clarity only shown. You are designing the Pack welded together. The training is the same on all four vertical edges.
  • the packaging bag can be in horizontal cross section any rectangular shape or triangular or polygonal shapes with different aspect ratios accept.
  • FIG. 9 shows an embodiment of a packaging bag 6, ready at its top for sealing after bottling.
  • the design at the top and the closure thereby in such a way that the upper ends 2a of the Foil sections of the side walls folded inwards and the upper edges of the film sections 2b the front and back wall over the entire length of the Bag top edge sealing with each other and with at least the inner surfaces of the folded inside Side walls are connected.
  • Figures 10, 10A and 10B and 11, 11A and 11B show three further embodiments of a packaging bag 6, in which the closure on the top by means of a patch, essentially rectangular cover 10 or 10 'or 10 ".
  • the edges of the lid are with the top edges the front wall 2.1, the rear wall 2.3, and the side walls 2.2 and 2.4 each by a welding or Adhesive seam 12 or 12 'or 12 "in such a way connected that analogous to the reinforcing ribs 7 the outer edges of each connected Point the edges in the same direction.
  • This training can, like the enlarged areas 11 in Figs. 10 and 11 'in Figs. 10A and 11 "in Fig. 10B show to be such that the weld or glue seam 12 faces upwards (FIGS. 10 and 11) or it can be such that the weld or adhesive seam 12 ' points obliquely upwards to the side (FIGS. 10A and 11A) or horizontally to the side (Fig. 10B and 11B).
  • the cover 10 or 10 'or 10 can be the same Foil material, like the packaging bag itself. But it can also be a different material be used.
  • FIGS. 12, 12A and 12B Manufacturing process of the packaging bag described above described in the case of considerably less Film waste occurs than in the explained Method.
  • the illustration is in FIG. 12 analogous to the representation in Fig. 3.
  • the alternative Procedure is not one already prepared and a piece of film cut into a cross shape assumed, but from two film strips 2 "'and 2 "", each handled by a roll 13 and 14 and crosswise at right angles to each other are superimposed, as shown in Fig. 12.
  • the prerequisite for this procedure is that the two Film strips at least on the facing each other Surfaces can be welded together or are glued.
  • the described packaging bag a thin film material has a bottom that consists of a uniform layer of said material and the integral with all four side walls the pack is connected, which in turn in the ver tical solder plane so welded together at their edges are that their composite vertical stiffening ribs forms as they are known in principle and together with the special shape of the Give the packaging bag its stability, so that it is suitable for packaging liquids, Powders, granules and coarse-grained materials or smaller objects.
  • the packaging bag can with a much higher production rate manufactured, molded, filled and sealed, as similar stand-up pouches mentioned at the beginning.
  • the packaging bag described has the advantage of being different in technology well-known systems shaped, filled and sealed can be.
  • a filling through the inner vertical fitting through and a subsequent sealing in the same shaping device possible, or the Packaging bags can be shaped after molding be deducted and in a next step later in a separate one Filling station to be filled and sealed.
  • the packaging bag has no hems on the bottom, Seams or joints what the number of places where Leaks due to poor sealing can occur significantly reduced.
  • the bottom of the packaging bag is absolutely flat, without any overhangs, approaches or projections and
  • the packaging bag can therefore be used within the production process via conveyor belts or the like Means can be transported without using parts of the devices get stuck.
  • the packaging bag has in its finished Shape much less material than others Packs of this type, and thus significantly reduced the amount of material to be disposed of according to consumption. Reducing the material over others known packs of this type are conditional due to the very efficiently structured form. Savings connected by more than 10% of the material area with further savings in terms of thickness up to 20% are possible, which means total savings the amount of material up to 30%.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Bag Frames (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Claims (10)

  1. Sachet d'emballage pour substances liquides, pâteuses et granulaires ou pulvérulentes ou pour petits objets, comprenant une paroi avant (2.1, 2.1'), une paroi arrière (2.3, 2.3'), au moins une paroi latérale (2.2, 2.4') et un fond (4, 4'), ces parois étant disposées sensiblement dans des plans perpendiculaires au plan du fond et le sachet étant formé à partir de segments de feuille faits d'une matière mince, flexible, en particulier d'une matière plastique, et les segments de feuille qui forment la paroi avant (2.1, 2.1') et la paroi arrière (2.3, 2.3') étant assemblés aux segments de feuille formant la paroi latérale ou les parois latérales (2.2, 2.4, 2.2', 2.4'), chacun par ses bords, au moyen d'un joint soudé ou collé (7), de telle manière que les bords extrêmes extérieurs des bords assemblés l'un à l'autre pointent dans la même direction et les segments de feuille, de forme sensiblement rectangulaire, prévus pour la paroi avant (2.1, 2.1'), la paroi arrière (2.3, 2.3') et la paroi latérale ou les parois latérales (2.2, 2.4, 2.2', 2.4') se raccordant en une seule pièce au segment de feuille du fond, à leurs extrémités dirigées vers le fond et étant repliés dans un des plans perpendiculairement au plan du fond, le fond (4, 4') étant plat et étant composé, exclusivement sur toute sa surface, d'un segment de feuille à une seule couche ou à deux couches, d'un seul tenant, polygonal, en particulier sensiblement rectangulaire.
  2. Sachet d'emballage selon la revendication 1, caractérisé en ce qu'à l'état rabattu dans le plan du fond, les segments de feuille prévus pour la paroi avant (2.1, 2.1'), la paroi arrière (2.3, 2.3') et les deux parois latérales (2.2, 2.4, 2.2', 2.4') forment, avec le segment de feuille prévu pour le fond (4, 4'), un unique segment de feuille complet (6) intégral, ayant sensiblement la forme d'une croix.
  3. Sachet d'emballage selon la revendication 1, caractérisé en ce que les segments de feuille prévus pour la paroi avant (2.1'''') et la paroi arrière (2.3''') sont formés à partir d'une première bande de feuille (2'''') et les segments de feuille prévus pour deux parois latérales (2.2''', 2.4''') sont formés à partir d'une deuxième bande de feuille (2'''), les deux bandes de feuille étant posées l'une sur l'autre, à angle droit l'une par rapport à l'autre, en forme de croix, et étant soudées ou collées l'une à l'autre, au niveau de leurs surfaces dirigées l'une vers l'autre au moins dans des régions partielles, dans la zone de recouvrement entre les segments de feuille qui forment, l'un la paroi avant et la paroi arrière, l'autre les deux parois latérales pour former le segment de feuille formant le fond (4'').
  4. Sachet d'emballage selon une des revendications 1 à 3, caractérisé en ce que les joints soudés ou collés (7) possèdent une largeur de 3 à 8 mm.
  5. Sachet d'emballage selon une des revendications 1 à 4, caractérisé en ce qu'au niveau du côté supérieur du sachet, les extrémités supérieures (2a) des segments de feuille des parois latérales sont repliées vers l'intérieur et les bords supérieurs des segments de feuille (2b) de la paroi avant et de la paroi arrière sont assemblés entre eux à joint étanche sur toute la longueur du bord supérieur du sachet et sont assemblés au moins aux surfaces intérieures des parois latérales pliées vers l'intérieur.
  6. Sachet d'emballage selon une des revendications 1 à 5, caractérisé en ce qu'il possède un couvercle (10, 10') sensiblement rectangulaire dont les bords sont assemblés aux bords supérieurs de la paroi avant (2.1), de la paroi arrière (2.3) et des parois latérales (2.2, 2.4), chacun par un joint soudé ou collé (12, 12') de telle manière que les bords extrêmes extérieurs des bords assemblés entre eux pointent dans la même direction.
  7. Sachet d'emballage selon la revendication 3, caractérisé en ce que les régions partielles (21) dans lesquelles les deux bandes de feuille (2''', 2'''') sont soudées ou collées l'une à l'autre pour former le segment de feuille formant le fond (4''), sont disposées le long de parties des segments de feuille qui sont perpendiculaires au plan du fond dans l'état replié vers le haut dans la région des arêtes inférieures du sachet.
  8. Procédé de fabrication d'un sachet d'emballage selon la revendication 1, caractérisé par les étapes de procédé suivantes :
    a) étaler un morceau de feuille (1) sur une surface de travail, le morceau de feuille étalé possédant des segments de feuille de configuration sensiblement rectangulaire faits d'une matière mince, flexible, pour une paroi avant, une paroi arrière, au moins une paroi latérale et un fond, et le fond étant plat, et étant composé, sur toute la surface, exclusivement d'un segment de feuille à une seule couche ou à deux couches, d'un seul tenant, polygonal, et la paroi avant, la paroi arrière et la paroi latérale ou les parois latérales se raccordant aux segments de feuille du fond, chacune en une seule pièce avec ce dernier ;
    b) placer une pièce de forme (3) dont les dimensions de section sont identiques aux dimensions de section intérieures du sachet d'emballage à former, sur le morceau de feuille (1), au-dessus du segment de feuille (4) qui doit former le fond du sachet d'emballage, les parois de la pièce de forme (3) se trouvant sensiblement perpendiculairement au plan du fond ;
    c) replier vers le haut les segments de feuille (2.1 - 2.4) qui doivent former les parois du sachet d'emballage et appliquer ces segments de feuille contre la pièce de forme (3) ;
    d) assembler les bords mutuellement adjacents des segments de feuille (2.1 - 2.4) formant les parois l'un à l'autre, par soudage ou collage, de telle manière que les bords extrêmes extérieurs des bords assemblés entre eux pointent dans la même direction ;
    e) séparer les parties excédentaires (1.1 sur la figure 2) du morceau de feuille qui pointe vers l'extérieur.
  9. Procédé pour la fabrication d'un sachet d'emballage selon la revendication 2, caractérisé par les étapes de procédé suivantes :
    a) étaler un morceau de feuille (6) découpé en forme de croix et fait d'une matière mince flexible sur une surface de travail, chaque branche de la croix correspondant à la largeur d'une des parois finies, à savoir la paroi avant (2.1'), la paroi arrière ( 2.3') et au moins deux parois latérales (2.2', 2.4'), majorée d'une largeur de nervures de renforcement verticales (7) du sachet d'emballage, et le segment de feuille (4') polygonal d'un seul tenant correspondant, dans la région de recouvrement de la forme de croix, au fond du sachet d'emballage ;
    b) placer une pièce de forme (3) dont les dimensions de section sont identiques aux dimensions de section intérieures du sachet d'emballage à former, sur le morceau de feuille (6), au-dessus du segment de feuille (4') qui doit former le fond du sachet d'emballage, les parois de la pièce de forme (3) se trouvant sensiblement perpendiculairement au plan du fond ;
    c) replier vers le haut les segments de feuille formant les branches de la croix et appliquer ces segments de feuille contre la pièce de forme (3) ;
    d) assembler les bords mutuellement adjacents des segments de feuille formant les branches de la croix l'un à l'autre par soudage ou collage, de telle manière que les bords extrêmes extérieurs des bords assemblés entre eux pointent dans la même direction.
  10. Procédé pour la fabrication d'un sachet d'emballage selon la revendication 3, caractérisé par les étapes de procédé suivantes :
    a) poser l'une sur l'autre deux bandes de feuille (2''', 2'''') faites d'une matière mince flexible, en croix et à angle droit l'une par rapport à l'autre, sur une surface de travail ;
    b) assembler les deux bandes de feuille dans la région de superposition, au niveau des surfaces dirigées l'une vers l'autre, par soudage ou collage, pour produire un segment de feuille (4'') qui doit former le fond du sachet d'emballage ;
    c) placer une pièce de forme (3'') dont les dimensions de section sont identiques aux dimensions de section intérieures du sachet d'emballage à former, sur le morceau de feuille (1), au-dessus du segment de feuille (4'') qui doit former le fond du sachet d'emballage, les parois de la pièce de forme (3'') se trouvant sensiblement perpendiculairement au plan du fond ;
    d) replier vers le haut les segments de feuille formant les branches de la croix qui correspondent à la paroi avant (2.1'''') , à la paroi arrière (2.3'''') et à deux parois latérales (2.2''', 2.4''') du sachet d'emballage fini, et appliquer ces segments de feuille contre la pièce de forme (3'') ;
    e) assembler les bords mutuellement adjacents des segments de feuille (2.1'''', 2.3'''', 2.2''', 2.4''') formant les parois l'un à l'autre, par soudage ou collage, de telle manière que les bords extrêmes extérieurs des bords assemblés entre eux pointent dans la même direction.
EP97103921A 1996-03-21 1997-03-08 Poche pour des matériaux liquides, pâteux, granulaires ou pulvérulents ou pour des petits objets Expired - Lifetime EP0796800B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29605278U 1996-03-21
DE29605278U DE29605278U1 (de) 1996-03-21 1996-03-21 Verpackungsbeutel für flüssige, pastöse und körnige oder pulverförmige Stoffe oder Kleinteile

Publications (2)

Publication Number Publication Date
EP0796800A1 EP0796800A1 (fr) 1997-09-24
EP0796800B1 true EP0796800B1 (fr) 2000-06-28

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EP97103921A Expired - Lifetime EP0796800B1 (fr) 1996-03-21 1997-03-08 Poche pour des matériaux liquides, pâteux, granulaires ou pulvérulents ou pour des petits objets

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US (3) US5842790A (fr)
EP (1) EP0796800B1 (fr)
AT (1) ATE194119T1 (fr)
DE (2) DE29605278U1 (fr)

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US5842790A (en) 1998-12-01
EP0796800A1 (fr) 1997-09-24
US6261215B1 (en) 2001-07-17
DE59701923D1 (de) 2000-08-03
ATE194119T1 (de) 2000-07-15
US6036365A (en) 2000-03-14
DE29605278U1 (de) 1997-07-17

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