EP0746507B1 - Dichtes behältnis, insbesondere schlauchbeutel, verfahren zu seiner herstellung, verfahren zu seiner befüllung mit einer flüssigkeit - Google Patents

Dichtes behältnis, insbesondere schlauchbeutel, verfahren zu seiner herstellung, verfahren zu seiner befüllung mit einer flüssigkeit Download PDF

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Publication number
EP0746507B1
EP0746507B1 EP95909081A EP95909081A EP0746507B1 EP 0746507 B1 EP0746507 B1 EP 0746507B1 EP 95909081 A EP95909081 A EP 95909081A EP 95909081 A EP95909081 A EP 95909081A EP 0746507 B1 EP0746507 B1 EP 0746507B1
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EP
European Patent Office
Prior art keywords
enclosure
sheet
edges
edge
sealed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP95909081A
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English (en)
French (fr)
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EP0746507A1 (de
Inventor
Alain Delsahut
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.)
Carapak Braintrust NV
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Carapak Braintrust NV
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Filing date
Publication date
Priority claimed from FR9402575A external-priority patent/FR2716865A1/fr
Application filed by Carapak Braintrust NV filed Critical Carapak Braintrust NV
Publication of EP0746507A1 publication Critical patent/EP0746507A1/de
Application granted granted Critical
Publication of EP0746507B1 publication Critical patent/EP0746507B1/de
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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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/14—Valve bags, i.e. with valves for filling
    • B65D31/145—Valve bags, i.e. with valves for filling the filling port being provided in a flat upper sealing-edge
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/22—Details
    • B65D77/24—Inserts or accessories added or incorporated during filling of containers
    • B65D77/28—Cards, coupons, or drinking straws
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D81/03—Wrappers or envelopes with shock-absorbing properties, e.g. bubble films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/18—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles

Definitions

  • the present invention relates to a sealed enclosure fitted with a valve at least part of which extends to inside the enclosure and is formed between two sheets flexible joined in two non-converging lines to form between them a conduit by spacing of said sheets flexible from each other, allowing the passage of a fluid between the inside and the outside of the enclosure, these sheets being intended to be pressed against each other as soon as we stop applying force to them to keep them away, thus preventing said fluid from leaving the enclosure.
  • This invention also relates to a method for manufacturing this enclosure, as well as a method for conditioning a drink.
  • the object of the present invention is to remedy, at least in part, to the disadvantages of the above solutions.
  • the subject of this invention is an enclosure waterproof of the aforementioned type, as defined by the claim 1.
  • the advantage of the proposed solution is to allow the manufacture of the waterproof enclosure with valve integrated into a single wall of the enclosure which allows the use of production lines of existing type starting from film flat plastic.
  • the filling of this enclosure can be do at high flow, through a much larger section orifice larger than that of the valve.
  • the attached drawing illustrates, schematically and by way of example, different forms of execution and variants of the watertight enclosure, as well as their manufacturing methods, according to the present invention.
  • Figures 1 to 4 are perspective views illustrating the different stages in the construction of an enclosure according to a form of execution.
  • Figure 5 is a sectional view along line XV-XV of Figure 4.
  • Figures 6 to 12 are perspective views illustrating the different stages of manufacturing and filling of the first embodiment.
  • Figures 13 to 17 are perspective views illustrating the different stages of manufacturing and filling of the second embodiment.
  • Figures 18 and 19 are perspective views of two variants of figure 12.
  • Figures 20 to 20f are partial views of a alternative embodiment of the embodiments of Figures 1 and 2 or 7 and 9.
  • Figures 21a to 21d are partial views of a another alternative embodiment.
  • Figure 22 is a sectional view of another variant again.
  • Figure 23 is a perspective view of another variant of the embodiment illustrated in FIG. 18.
  • Figure 24 is a plan view of a variant of the valve applicable to any of the forms of execution linked to a liquid packaging enclosure.
  • Figure 25 is a perspective view of a method of manufacture of a variant of the waterproof enclosure object of the invention.
  • Figure 26 is a sectional view along the line XXVI-XXVI of Figure 25 of this variant.
  • Figure 27 is a perspective view of another variant of the manufacturing process a variant of the waterproof enclosure.
  • Figure 28 is a sectional view along the line XXVIII-XXVIII in Figure 27.
  • Figure 29 is a perspective view of a final variant of the manufacturing process of another variant of the waterproof enclosure.
  • Figure 30 is a sectional view along the line XXX-XXX in Figure 29.
  • Figure 31 is a perspective view of a variant of Figures 4 and 5.
  • Figure 32 is a sectional view of a final variant of the waterproof enclosure.
  • we start from a sheet 24 that we fold a first time to form the strip 24a we preferably welds 28 and 29 'simultaneously as well as two parallel oblique welds 30 and 31 extending from one to the other weld 28 and 29 'to form the valve.
  • the sheet 24 is folded again in the vicinity of the weld 28 (in the direction of the arrow F - Figure 1) for form a strip 24b and the weld 29 'is fixed to the sheet 24 by a new weld 29 (Figure 2) thus connecting now between them three thicknesses of the sheet 24.
  • this new weld 29 stops between the oblique welds 30, 31 of the valve.
  • sheet 24 we then place sheet 25 (figure 3) and these sheets are welded together to form a pocket between them, on the one hand, and the welds 33, on the other hand, to receive an object to be wrapped.
  • the sheets 24 and 25 therefore form the internal walls of the waterproof enclosure. We still have two openings 34 including the role will be explained later.
  • the enclosure instead of providing a waterproof pocket between two double walls, could be walled simple, that is to say that it would contain only the leaves 24 and 26 and that the sheet 24 would not be pierced by the openings 34.
  • Such an enclosure could be used for packaging of a liquid, for example a drink.
  • the outer walls 26, 27 can be made made of materials different from those of the sheets 24, 25. This is how these external walls 26, 27 could be, for example, thicker ones. One could also imagine that these external walls are rigid or semi-rigid shells.
  • the walls of the enclosure are weldable, in particular by ultrasound, and are based on polyethylene (PE) or linear low density polyethylene (LLDPE), preferably made of PE / X / PE laminates, X being made up by an airtight barrier such as polyethylene vinyl alcohol (EVOH), polyamide (PA) or bioriented polyamide (OPA).
  • PE polyethylene
  • LLDPE linear low density polyethylene
  • EVOH polyethylene vinyl alcohol
  • PA polyamide
  • OPA bioriented polyamide
  • welding lines 28 and 29 connecting the welding line 29 ′ to the sheet 24 are not not essential. However, it has been found that they are useful, insofar as they ensure good positioning of the valve inside the enclosure during inflation. We have also found that it is preferable to connect the bottom of the pocket at the bottom of the enclosure. However, this measure is not essential either and sheets 24 and 25 could be interrupted at the welding line 33 delimiting the pocket bottom.
  • the rest of the perimeter of the enclosure may have another form than quadrangular. It is enough for that cut the leaves to the desired shape, before or after welding, the welding lines then following this form.
  • packaging according to Figures 1 to 5 could also be provided with a part extending outside of the enclosure beyond at least one of the welds 35 or 36, this part being able to be used to spare a handle by example, or to form a flap to protect access to the valve.
  • FIG. 6 represents a quadrangular sheet 40 in which we drilled an orifice 41 which we covered with a cover 42.
  • This sheet 40 is cut from a roll unrolled at flat on a horizontal or vertical production line in a hydrogen peroxide bath to guarantee aseptic packaging material.
  • the unfolding of the film or sheet runs parallel to the top and bottom welds of the bag.
  • the valve which we will first describe the manufacturing is carried out in stages in the direction of the course of the film reel.
  • Figure 7 shows this same sheet 40 which has been folded a marginal strip 40a on the front face of the sheet 40 at level of the center of orifice 41.
  • the marginal strip is welded 40a by two oblique parallel welds 43,44 delimiting this which will be the valve and by welds 45,46,47 parallel to the fold line of marginal strip 40a connecting each end of the welds 43,44 at the two lateral edges of the sheet 40.
  • Figure 8 shows the fold in the other direction (arrow F) than previously of marginal strip 40a with part 40b sheet 40 to which it was welded.
  • FIG 9 shows the welding 46a of the sheet 40 aux strips 40a and 40b along the same welding line as the welding 46.
  • the purpose of this welding 46a is to allow guiding of a straw between the oblique welding lines 43,44 delimiting the valve.
  • the bag has a quadrangular sheet 48 of the same dimensions that the sheet 40 provided with its valve and a bellows 49 intended to form the bottom of the bag making it possible to hold in vertical position on a horizontal surface.
  • this is made up of a laminate with an inner layer of thermoplastic, for example polyethylene and the outer layer of which is a thermosetting agent, for example OPA.
  • Figure 11 shows the two side welds 50,51 connecting sheets 40 and 48 to each other and the two bottom welds 52.53 connecting the bellows 49 respectively on sheets 48 and 40.
  • the upper edge of sheets 40 and 48 are not welded, leaving an opening 54 for filling the enclosure.
  • Figure 12 illustrates the finished packaging with the upper edges of the sheets 40,48 joined by a weld 55.
  • a straw 56 is engaged in the conduit formed between the welds 43 and 44 forming the valve and is also fixed on the external face of the sheet 40 by an adhesive tape 57.
  • Figures 13 to 17 relate to the manufacture of side bellows bags intended to be carried out on a production line including the machine axis is parallel to the vertical axis of the bag.
  • the position of the valve must be such that the folding operations are carried out continuously in the axis of the machine. This constraint involves positioning the valve on a part side of the bag.
  • Forming (figure 15) welds four in number, two welds 63 to fix the bellows 61,62 to sheet 40 and two solders 64 to stiffen the bag.
  • Figure 16 shows the welding of the bottom 65 while a opening 66 is left at the top of the bag to allow filling.
  • the bag closed by a seal 67 (figure 17) can be placed on the bottom weld 65 which will flatten under the weight of the liquid, while the channel formed between the welds 43 and 44 forming a valve allows access to the drink after perforation of the cover 42.
  • FIG. 18 shows the bag of Figure 12 in which the weld 46a has been removed and the valve channel formed between the welds 44 'and 50 (parallel to the edge of the bag and no longer obliquely) is more elongated so to form between the welds 44 ′, 45 ′ and 51 a pocket intended to receive the straw 56.
  • the packaging constituted by the sealed enclosure is specially designed to allow the drink to be consumed in several installments, it is useful to have a storage space for the straw 56, this being essential for entering the enclosure through the channel formed between the welds 44 'and 50.
  • the pocket containing the straw can be provided with a system of closure of the self-adhesive strip type along its upper edge in place of the weld 46a of FIG. 12 or of a closure known under the brand Mini-grip R.
  • a pocket 68 can be provided in one of the sheets 40 or 48 forming the wall of the enclosure, this pocket 68 serving as housing for the straw.
  • the waterproof enclosure described so far is made at from a sheet forming at least one wall of the enclosure and in a marginal strip from which we obtain by folding and welding, as described above, a valve allowing control the flow of a fluid in or out of the enclosure waterproof and keep this enclosure closed.
  • the weld 73 is cut between the parallel welds 74, 75 to form the channel and we spare two cutouts 74a, 75a in the middle of the width of the welds 74, 75.
  • These cutouts are intended to release part of the length of the valve of the marginal strip 71 in which it is formed, making it possible to increase the effectiveness of the pressure exerted on the external faces of the valve and used to close it as explained above. He is at note that these cutouts can advantageously also be practiced on the valves of the previous embodiments.
  • the marginal strip 71 in which the valve is folded over the rear face of the sheet 70 by compared to figure 20e, as shown in figure 20f after what the enclosure is finished as in the embodiments previous, by welding another sheet identical to the sheet 70, along the free edge of the marginal strip (figure 20f) and along the three sides of the sheet 70 no adjacent to this free edge thus closing the enclosure on four sides.
  • Figures 21a to 21d differs from the by the mere fact that the valve, made in a other material than sheet 70 ', intended to form a wall of the sealed enclosure, is formed as before by folding and welding before being fixed to the sheet 70 '.
  • Figure 18 proposes to achieve a pocket for accommodating a straw 56 therein, intended to consume the liquid contents of the enclosure.
  • Figure 23 illustrates a variant of this embodiment in which the enclosure single wall with valve is of the same type as in shape of execution of FIG. 11. However, this variant in differs from the fact that an external pocket is provided between a outer wall of the enclosure and a third wall 77 welded on three sides 78, 79, 80 at the corresponding edges of the enclosure, but stopping at a certain distance from the fourth side 81, thus allowing access to the interior of the pocket intended to receive a straw 82.
  • the opening of this pocket is closed by an adhesive strip 83 which extends from the edge 81 of the enclosure to below the edge upper non-welded sheet 77.
  • the sheet forming the wall of the enclosure adjacent to the pocket may be the sheet integral with the valve similar to valves of the embodiments described above. Being given that this wall is covered by the sheet 77 forming the pocket and by the self-adhesive strip 83, the sheet forming this wall and the valve can be made of a more material thinner than that of the other wall of the enclosure and the sheet 77.
  • the variant illustrated in Figure 24 shows a enclosure 90 provided with the valve formed between two parallel welds 86, 87 connecting two welds 88, 89 extending between two opposite edges of the enclosure 90.
  • the parallel welds 86, 87 are arranged so as to each form a thickening 86a, 87a in channel 91 of the valve, narrowing the funnel-shaped section of it to a point where the welds 86, 87 suddenly resume their initial thickness.
  • the large section of the funnel thus formed is turned towards the outside of the enclosure 90 and the smallest section is directed inward.
  • the length ratio between the entrance to channel 91 and the section the lower 91a of the funnel, on the one hand and this section the weakest 91a and the end of the channel 91 opening into enclosure 90, on the other hand, is about 2/3, 1/3.
  • the goal of this valve, the channel 91 of which is divided into two parts, the border is located at the level of the weakest section of the funnel 91a is, in the case of an enclosure of conditioning of a liquid, to allow to partially withdraw the straw above the level of section 91a in the leaving in the upper part of channel 91, the part bottom of channel 91 closing, even if the straw is engaged in the upper part of channel 91.
  • this form of valve can be used in the case of all previous embodiments of speakers intended for the packaging of liquids. Straw could moreover be replaced by a spout, especially in the packaging of liquid products other than drinks.
  • valve is made of a material other than the walls of the enclosure
  • a very thin film, uncut or precut in the fold of the film made of a material having elastomeric properties of sufficient elasticity not to deform in a non-elastic manner by the stress resulting from the introduction of the straw into the channel and capable of being perforated by the straw when it reaches the bottom of the undrilled channel.
  • a film can be produced in polyolefins such as terpolymers comprising ethylene, propylene and a long diene chain such as the Suite XTR R , Teclar R , Royalene R or Trefsin R.
  • All the described embodiments can be made from infinite lengths of material in sheet or film until waterproof enclosures are obtained which are then separated from each other.
  • the advantage of this manufacturing process is that both the valve formation than that of the enclosure, in pairs or four walls, are made by folding and / or welding longitudinal, as the material advances leaf. Therefore, the valve once made, if it is obtained in another sheet material than that of the enclosure itself, is integrated into the enclosure without being cut beforehand, avoiding having to position the valve, which is a complex operation, slowing down the pace and expensive in terms of investment.
  • Figure 25 illustrates a method of manufacturing a sealed enclosure that Figure 26 shows in section.
  • This process is therefore produced continuously from two films 92 and 93 that we unroll and on which we fold and welds as they advance.
  • the different process steps are illustrated by different perspective cuts of sheet materials. It is however clarified that these cuts are only there to show the various operations carried out but that the materials in sheets are only cut when the sealed enclosure is finished.
  • This film 92 is first of all folded longitudinally in two parts 92a, 92b of unequal widths. These two parts are welded by two longitudinal welds 94 with interruption between two parallel oblique welds 95 intended to spare the valve channel.
  • a cutout 96 is provided in the fold of the sheet 92 between the two oblique welds 95.
  • the second film 93 intended to form the sealed enclosure is rolled out in the next step, along the edge of part 92a of the valve formed in the film 92.
  • the separator guide 97 is arranged in the path of the film 92 and is intended for fit between the parts 92a, 92b. This separator 97 is intended to allow the welding of the edge of the part 92a with that of the film 93 without the part 92b being welded to them.
  • the film 93 is shaped to make the enclosure 98 illustrated in section in FIG. 26, with two side gussets 99.
  • the second edge longitudinal of the film 93 is welded to the longitudinal edge of the part 92b of film 92, these two longitudinal edges being previously bent at 90 °. So this waterproof enclosure has access to the entrance to the canal formed between the two oblique welds 95 located on a large face of the enclosure and no longer in an edge of it like so far.
  • the variant illustrated in Figures 27 and 28 is relates to a manufacturing process in which a enclosure filling unit with a liquid product intended to be conditioned in this enclosure.
  • a manufacturing process in which a enclosure filling unit with a liquid product intended to be conditioned in this enclosure.
  • the film 101 with the valve 102 is formed tubular around a filling hopper 103 and a longitudinal weld 104 ( Figure 28) is made between the edge of part 100b and the other edge of film 101, closing thus the tubular element formed around the hopper 103.
  • 105 transverse welds are made at intervals regular as the element advances tubular. Between two transverse welds 105, a dose of product to be packaged is poured through the hopper 103 and the pouches thus filled are separated from each other at middle of the width of the transverse welds 105.
  • Figures 29.30 illustrate yet another method of manufacture of waterproof packaging that differs from forms of execution described so far by the fact that we accesses channel 106 of valve 107 through an opening 108 cut from a film 109 intended to form a wall of the sachet waterproof.
  • Figure 29 instead of forming the valve by folding a sheet, we can get the same result by welding the adjacent longitudinal edges of two 110,111 bands of unequal widths. These two modes of valve design are interchangeable and depend on choice of manufacturer.
  • the free edge of the strip 110 is welded to the face internal film 109, with the help of a separator guide 112, then it is the edge of the strip 111 which is welded to the same inner side of film 109 with the help of another guide separator 113.
  • the two respective free edges of the strips 110 and 111 are welded on either side of the opening 108 thus allowing access to the channel 106 of the valve 107.
  • a film 114 is unwound and welded at the two edges film 109.
  • Figure 31 is a variant of the illustrated waterproof bag in FIG. 5.
  • the film 24 forming the valve 24a, 24b is provided with a cut-out opening 115 blocked by a tongue 116 partially welded or glued to the film 24 to close the opening 115 hermetically. By grabbing the non-welded part of the tongue 116, it can be torn off to deflate the bag.
  • This bag also has a flap 117 welded to the edge 36 and formed by a pocket intended to receive a plug mailing. This flap 117 normally covers the tongue 116 sticks to sheet 26 and thus avoids accidental tearing of this tab.
  • Figure 32 shows a final variant of the sealed enclosure in which the enclosure is formed of two films 118, 119, the film 118 being folded back to form one of the parts 118a of the valve, the other part of which is formed by a film 120 welded like all the previous valves to the part 118a. Finally, the free edge of the film 120 is welded to the adjacent edge of film 119.
  • the valve can be integrated into a wall of the sealed enclosure as in the case of FIGS. 1 to 19, that the valve can be produced in a film separate from that of the waterproof enclosure as in the case of figure 20, that the valve can be made with two films (figure 29) and finally that it can be produced by a film welded to a film folded over wall of the bag. In all cases the valve is obtained by continuous with the sealed enclosure and therefore passes through the bag between two opposite edges of this sealed enclosure.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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  • Packages (AREA)

Claims (22)

  1. Dichtes Behältnis. mit einer Wand und einem Ventil versehen, das sich im Inneren des Behältnisses befindet und zwischen zwei biegsamen Folien (24a, 24b; 40a, 40b; 92a, 92b) ausgebildet ist, die sich von einer zur anderen von zwei entgegengesetzten Kanten (50, 51; 78, 80) des Behältnisses erstrecken und entlang zweier nicht zusammenlaufender Verbindungslinien (30, 31, 43, 44, 95) zusammengefügt sind, um zwischeneinander durch Auseinanderspreizen der benannten biegsamen Folien einen Kanal zu begrenzen, der an seinen beiden Enden offen ist, wobei das eine Ende mit dem Inneren und das andere mit der Aussenseite des Behältnisses in Verbindung steht, um den Durchgang eines Fluids zwischen dem Inneren und der Aussenseite des Behältnisses zu gestatten, wobei diese biegsamen Folien (24a, 24b; 40a, 40b; 92a, 92b) dazu bestimmt sind, sich aneinander anzulegen, sobald man aufhört, eine Kraft an sie anzulegen, durch die sie auseinandergespreizt werden, um so das benannte Fluid daran zu hindern, aus dem Behältnis auszutreten, und wobei die Kanten dieser biegsamen Folien (24a, 24b; 40a, 40b; 92a, 92b), die dem mit der Aussenseite in Verbindung stehenden Ende des benannten Kanals benachbart sina, dicht mit der Wand (26, 48, 93, 109) dieses Behältnisses verbunden sind, dadurch gekennzeichnet, dass die benannten, entgegengesetzten Kanten (50, 51; 78, 80) des Behältnisses, zwischen denen sich die benannten biegsamen Folien (24a, 24b; 40a, 40b) erstrecken, so aneinandergefügt sind, dass die entsprechenden Kanten dieser biegsamen Folien, die zwischen den benannten, entgegengesetzten Kanten (50, 51; 78, 80) des Benältnisses liegen, einerseits aneinandergefügt und andererseits an die entgegengesetzten Kanten des Behältnisses angefügt sind, und dadurch, dass die benannten biegsamen Folien (24a, 24b; 40a, 40b; 92a, 92b) ausserdem durch dichte Verbindungen (28, 29, 45, 46,47, 94) miteinander verbunden sind, die an jedem der Enden jeder der benannten, nicht zusammenlaufenden Verbindungslinien (30, 31, 43, 44, 95) beginnen, die den benannten Kanal begrenzen, und bis zu den benannten entgegengesetzten Kanten (50, 51; 78, 80) des Behältnisses führen, wobei die benannte dichte Verbindung (28, 46, 94) dem mit der Aussenseite in Verbindung stenenden Ende des benannten Kanals benachbart ist und zumindest eine der benannten biegsamen Folien (24a, 24b; 40a, 40b; 92a, 92b) aus einem Verbund (35, 55, 63) besteht, der sich von dem der dem Behältnis benachbarten Kante unterscheidet.
  2. Dichtes Behältnis gemäss Anspruch 1, dadurch gekennzeichnet, dass der benannte Kanal in einem Seitenstreifen (71) ausgebildet ist, der einer Kante einer Folie (70) benachbart ist, die zumindest eine der Wände des benannten Behältnisses bildet, wobei dieser Seitenstreifen um eine zu der benannten Kante der benannten Folie (70) parallelen Linie (73) gefaltet ist,
    zwei nicht zusammenlaufende, dichte Verbindungslinien (74, 75) die beiden übereinandergefalteten Teile des benannten Seitenstreifens (71) zusammenfügen, wobei diese Linien (74, 75) von der Faltkante (73) ausgehen und in Richtung auf die parallele, diesem Seitenstreifen entgegengesetzte Kante zulaufen,
    die beiden so gefalteten Teile werden ihrerseits gegen eine Seite der benannten Folie (70) gedrückt, wobei die freie Kante des Seitenabschnitts (71) sich im wesentlichen an die benachbarten Kanten der benannten Folie (70) und des benannten Seitenstreifens (71) anschliesst und einen Falz zwischen dieser Folie (70) und diesem Streifen (71) bildet,
    wobei die freie Kante dieses Streifens (71) sowie die freien Kanten der benannten Folie (70) dicht an die benachbarte Kante einer zweiten Wand angefügt sind, die so an die dem benannten Seitenstreifen benachbarte Seite der ersten Wand (70) gedrückt wird, dass das benannte Behältnis gebildet wird, das den benannten, umgefalteten Seitenstreifen enthält.
  3. Dichtes Behältnis, namentlich dazu bestimmt, aufgebläht zu werden, gemäss Anspruch 1, dadurch gekennzeichnet, dass die beiden benannten Verbindungslinien (30, 31) in einer gewissen Entfernung von der freien Kante des benannten Streifens (24a), die der Eintrittsöffnung des Kanals benachbart ist, enden, und dass dieser Streifen durch eine erste Zusammenfügungslinie (28), die zu der benannten freien Kante parallel ist und durch die betreffenden Enden der benannten beiden Verbindungslinien (30, 31) verläuft, die in einer gewissen Entfernung von dieser freien Kante enden, sowie durch eine zweite Zusammenfügungslinie (29), die im wesentlichen der der benannten freien Kante des benannten Streifens (24a) entgegengesetzten Kante (29') folgt, an der benannten Folie (24) befestigt ist, wobei diese erste und zweite Zusammenfügungslinie (28, 29), die den benannten Seitenstreifen (24a) an der benannten Folie (24) befestigen, in dem benannten Bereich enden, der sich zwischen den beiden benannten, nicht zusammenlaufenden Verbindungslinien (30, 31) erstreckt.
  4. Dichtes Behältnis, namentlich dazu bestimmt, aufgebläht zu werden, gemäss Anspruch 3, dadurch gekennzeichnet, dass es vier übereinandergelegte Wände (24, 25, 26, 27) umfasst, die an zumindest zwei einander entgegengesetzten Seiten aufeinandergefügt sind, wobei die beiden äusseren Wände (26, 27) und die beiden inneren Wände (24, 25) jeweils an einer dritten Seite (37), die den Boden bildet, aufeinandergefügt sind, während jede Aussenwand (26, 27) entlang der vierten Seite (35, 36) an die benachbarte innere Wand (24, 25) angefügt ist und somit eine Tasche im Inneren des Benältnisses gebildet wird.
  5. Dichtes Behältnis, namentlich dazu bestimmt, aufgebläht zu werden, gemäss Anspruch 4, dadurch gekennzeichnet, dass die vier übereinandergelegten Folien (24, 25, 26, 27) aneinander anstossende Umrisse haben und entlang ihrer gesamten Peripherie zusammengefügt sind, ausgenommen entlang der Öffnung der benannten Tasche, wo die Kanten der inneren Wände (24, 25) voneinander getrennt sind.
  6. Dichtes Behältnis, namentlich dazu bestimmt, aufgebläht zu werden, gemäss Anspruch 4, dadurch gekennzeichnet, dass die beiden inneren Wände (24, 25) aneinandergefügt sind (33), um innerhalb der Peripherie des Behältnisses eine Tasche zu bilden, deren Öffnung sich vor der Öffnung des Behältnisses befindet.
  7. Dichtes Behältnis, namentlich dazu bestimmt, aufgebläht zu werden, gemäss Anspruch 6, dadurch gekennzeichnet, dass die Kanten der innerhalb der Peripherie des Behältnisses eingegrenzten Tasche ausgeweitet sind.
  8. Dichtes Behältnis gemäss Anspruch 1, dadurch gekennzeichnet, dass ein Einsatz (49; 61, 62) zwischen zumindest zwei benachbarte Kanten der beiden Wände (40, 48) des benannten Behältnisses eingefügt und an jede dieser Kanten angeschweisst ist.
  9. Dichtes Behältnis gemäss Anspruch 8, dadurch gekennzeichnet, dass der benannte Einsatz (49; 61, 62) aus einem Laminat besteht, dessen mit den betreffenden benachbarten Kanten der benannten Wände in Berührung kommende innere Schicht aus einem heisssiegelbaren thermoplastischen Material und dessen äussere Schicht aus einem nicht heisssiegelbaren Material besteht.
  10. Dichtes Behältnis gemäss Anspruch 8, dadurch gekennzeichnet, dass man den Denannten Einschnitt (41) vor dem Falzen des benannten Seitenstreifens anbringt und dass man diesen Einschnitt mit Hilfe eines durchstechbaren Deckels (42) verschliesst.
  11. Dichtes Behältnis gemäss einem der Anspruche 2 und 8, dadurch gekennzeichnet, dass man in dem zwischen den beiden Zusammenfügungslinien (43, 44) befindlichen Bereich an der benannten Folie einen Voreinschnitt anbringt, der dafür bestimmt ist, durch Einführung eines Stiftes zwischen die Zusammenfügungslinien (43, 44) durchstossen zu werden.
  12. Dichtes Behältnis gemäss Anspruch 2, dadurch gekennzeichnet, dass ein Einschnitt oder Voreinschnitt (32, 41) den Falz (29, 45) in dem zwischen den beiden Zusammenfügungslinien (30, 31, 42, 44) befindlichen Bereich unterbricht, um den Durchgang von Fluid in dem so gebildeten Kanal zu gestatten.
  13. Dichtes Behältnis gemäss Anspruch 2, dadurch gekennzeichnet, dass der benannte Seitenstreifen aus einem Streifen der Folie gebildet wird, die zumindest eine der Wände des Behältnisses bildet.
  14. Dichtes Behältnis gemäss Anspruch 2, dadurch gekennzeichnet, dass der benannte Seitenstreifen (71, 71') aus einem an die Kante der benannten Folie angeschweissten Streifen besteht, wobei dieser Streifen und diese Folie aus zwei verschiedenen Materialien bestehen.
  15. Dichtes Behältnis gemäss Anspruch 13, dadurch gekennzeichnet, dass der benannte Seitenstreifen (85) aus einer der Schichten besteht, aus denen sich die Folie (84) zusammensetzt, die zumindest eine der Wände des Behältnisses bildet.
  16. Dichtes Behältnis gemäss Anspruch 2, dadurch gekennzeichnet, dass ein Einschnitt (74a, 74b) in einem Längsabschnitt jeder der benannten Zusammenfügungslinien (74, 75) angebracht ist, und zwar im mittleren Bereich ihrer Breitenausdehnung und von der benannten Faltkante ausgehend.
  17. Dichtes Behältnis gemäss Anspruch 1, dadurch gekennzeichnet, dass die benannten, nicht zusammenlaufenden Verbindungslinien (86, 87) je eine zunehmende Ausweitung (85a, 87a) aufweisen, die sich in den Kanal (91) des Ventils hinein erstreckt, und zwar in der Richtung vom äusseren zum inneren Ende dieses Kanals, wobei diese Ausweitung plötzlich endet und der Kanal (91) dadurch in der Längsrichtung in zwei Abschnitte unterteilt wird, ein äusserer Abschnitt dazu bestimmt ist, als Aufnahmeelement einer Verteilungsleitung für die Flüssigkeit zu dienen und ein innerer Abschnitt ein Ventil bildet, dessen Öffnung durch Längsverschiebung des Endes des benannten röhrenförmigen Organs vom äusseren Abschnitt zum inneren Abschnitt des benannten Kanals (91) gesteuert wird.
  18. Dichtes Behältnis gemäss Anspruch 1, dadurch gekennzeichnet, dass entlang eines Längenabschnittes der beiden entgegengesetzten Kanten (78, 80) des Behältnisses und entlang der diese beiden entgegengesetzten Kanten verbindenden Kante (79) eine dritte, rechteckige Wand (77) so befestigt ist, dass eine entlang ihrer vierten Seite offene Tasche gebildet wird, wobei diese Tasche durch einen selbstklebencen Streifen (83) verschlossen wird, der den Abschnitt der Behältniswand überspannt, der nicht von dieser dritten Wand (77) überdeckt wird.
  19. Dichtes Behältnis, namentlich dazu bestimmt, aufgebläht zu werden, gemäss Anspruch 4, dadurch gekennzeichnet, dass eine seiner Wände (24) durchbohrt ist (115) und dass eine Zunge (116) auf die Aussenseite der Wand (24) geklebt oder geschweisst ist, um die Öffnung dicht zu verschliessen, wobei ein nicht geklebter oder geschweisster Abschnitt dieser Zunge (116) als ein Greifelement dient, um die Öffnung (115) freizulegen.
  20. Behältnis gemäss Anspruch 19, dadurch gekennzeichnet, dass eine Schutzkappe in der Verlängerung einer der Wände des Behältnisses angebracht und dazu geeignet ist, in abnehmbarer Weise auf diesem Behältnis befestigt zu werden, indem sie die benannte Zunge (116) abdeckt.
  21. Verfahren zur Verpackung eines Getränkes in dem dichten Behältnis gemäss einem der Ansprüche 1, 2 und 7, dadurch gekennzeichnet, dass man zuerst das benannte Ventil (30, 31, 43, 44) in Nachbarschaft zu einer der Karten einer der Wände (24, 40) des Behältnisses ausbildet, dass man die zweite Wand (26, 48) des Behältnisses so auf die erste Wand aufschweisst, dass der Boden und die Seitenkanten des Behältnisses verschlossen werden, dass man eine abgemessene Menge von Flüssigkeit zwischen die nicht verschweissten Kanten des oberen Randes des Behältnisses einführt und dass man das Behältnis verschliesst, indem man die beiden oberen Kanten (35, 55, 67) miteinander verschweisst.
  22. Verfahren zur Fertigung des dichten Behältnisses gemäss einem der Ansprüche 1 bis 20, dadurch gekennzeichnet, dass sowohl das Ventil wie auch das dichte Behältnis aus endlosem Folienmaterial hergestellt wird, indem die verschiedenen Folien in dem Masse, in dem sie abgewickelt werden, durch Falten und/oder Hinzufügen anderen Folienmaterials sowie durch Verschweissen parallel zur Abwickelrichtung, ausgenommen die benannten beiden, nicht zusammenlaufenden Verbindungslinien, übereinandergefügt werden und man schliesslich quer zur Abwickelrichtung der verschiedenen Folien zu beiden Seiten ein und des selben Ventils Folienmaterial aufschweisst und die so erhaltenen dichten Behältnisse entlang der benannten Querschweisslinien voneinander trennt.
EP95909081A 1994-03-03 1995-03-03 Dichtes behältnis, insbesondere schlauchbeutel, verfahren zu seiner herstellung, verfahren zu seiner befüllung mit einer flüssigkeit Expired - Lifetime EP0746507B1 (de)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
FR9402575 1994-03-03
FR9402575A FR2716865A1 (fr) 1994-03-03 1994-03-03 Enceinte étanche gonflable et procédé de fabrication d'une telle enceinte.
FR9409882 1994-08-05
FR9409882 1994-08-05
FR9413159 1994-10-28
FR9413159 1994-10-28
PCT/IB1995/000138 WO1995023742A1 (fr) 1994-03-03 1995-03-03 Enceinte etanche, procede de fabrication de cette enceinte et procede pour conditionner une boisson dans cette enceinte

Publications (2)

Publication Number Publication Date
EP0746507A1 EP0746507A1 (de) 1996-12-11
EP0746507B1 true EP0746507B1 (de) 1998-09-30

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US (1) US6481889B2 (de)
EP (1) EP0746507B1 (de)
AU (1) AU1716795A (de)
DE (1) DE69505106T2 (de)
ES (1) ES2125006T3 (de)
WO (1) WO1995023742A1 (de)

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EP0746507A1 (de) 1996-12-11
DE69505106D1 (de) 1998-11-05
WO1995023742A1 (fr) 1995-09-08
US20020015541A1 (en) 2002-02-07
AU1716795A (en) 1995-09-18
DE69505106T2 (de) 1999-04-22
US6481889B2 (en) 2002-11-19
ES2125006T3 (es) 1999-02-16

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