WO1998026989A1 - Procede de fabrication de boites pliantes et materiau de base et produits intermediaires pour cette fabrication - Google Patents

Procede de fabrication de boites pliantes et materiau de base et produits intermediaires pour cette fabrication Download PDF

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Publication number
WO1998026989A1
WO1998026989A1 PCT/EP1997/007027 EP9707027W WO9826989A1 WO 1998026989 A1 WO1998026989 A1 WO 1998026989A1 EP 9707027 W EP9707027 W EP 9707027W WO 9826989 A1 WO9826989 A1 WO 9826989A1
Authority
WO
WIPO (PCT)
Prior art keywords
side wall
base material
layer material
intermediate layer
inner layer
Prior art date
Application number
PCT/EP1997/007027
Other languages
German (de)
English (en)
Inventor
& Lemke Fülltechnik Gmbh & Co. Kg Leifeld
Jürgen DAMMIT
Original Assignee
Leifeld & Lemke Fuelltechnik G
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
Priority claimed from DE19652135A external-priority patent/DE19652135A1/de
Priority claimed from DE19652137A external-priority patent/DE19652137A1/de
Priority claimed from DE19652138A external-priority patent/DE19652138A1/de
Application filed by Leifeld & Lemke Fuelltechnik G filed Critical Leifeld & Lemke Fuelltechnik G
Publication of WO1998026989A1 publication Critical patent/WO1998026989A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/56—Linings or internal coatings, e.g. pre-formed trays provided with a blow- or thermoformed layer
    • B65D5/563—Laminated linings; Coatings
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
    • B65D5/06—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end-closing or contents-supporting elements formed by folding inwardly a wall extending from, and continuously around, an end of the tubular body
    • B65D5/067—Gable-top 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/44—Integral, inserted or attached portions forming internal or external fittings
    • B65D5/441—Reinforcements
    • B65D5/443—Integral reinforcements, e.g. folds, flaps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H39/00—Associating, collating, or gathering articles or webs
    • B65H39/14—Associating sheets with webs
    • 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
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • 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
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • B31B2105/001—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs made from laminated webs, e.g. including laminating the webs
    • 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
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/40—Construction of rigid or semi-rigid containers lined or internally reinforced
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard

Definitions

  • the present invention relates to a method for producing multilayer foldable base material for forming folding boxes with a side wall area, an upper and a lower closing area, in particular for flowable media, intermediate products formed therefrom and folding boxes.
  • disposable packaging is that it can usually be produced more cheaply, since it is only required once, but this has the disadvantage of having to be disposed of.
  • one-way packaging should be inexpensively producible with as little material and as little energy and machine expenditure as possible, from an ecological point of view, the one-way packaging should also have only little material to be disposed of, which should be as biologically compatible as possible, and from a market point of view, the one-way packaging must fulfill the purpose to make the filled flowable medium safely transportable, storable and accessible.
  • Folding boxes of this type are usually designed as so-called gable packs, ie they have side walls, an essentially flat bottom and a gable-shaped upper closure. This upper closure can be closed cut open, kink and tear or open similar measures so that the flowable medium stored in the container can be poured out.
  • Such gable packs are usually made of cardboard or cardboard, which is coated depending on the medium filled. Coatings can be made, for example, by using plastics, polyethylene, by aluminum, also in the form of foil and the like.
  • the entire packaging must consist of cardboard and coating material of high quality, so that the material costs are considerable. If the cardboard is too thin, the packaging tends to bulge, which has a negative effect on stacking, transport and handling. However, if the cardboard is sufficiently stiff, the packaging itself is comparatively heavy and material-intensive, so that, in addition to the production costs, the transport and disposal costs also increase. In addition, special machines and high energy expenditure are required to process such massive cardboard materials into packaging, that is to say to print, punch and fold them. In order to create tightness when using a stiff material, very stable weld seams usually have to be carried out, since the material tends to spring back despite intensely pre-grooved fold lines.
  • EP 0 108 537 discloses packaging which is also suitable for liquids and comprises at least one layer made of a rigid material and a layer made of thin material provided on at least one side of the rigid material.
  • the rigid material forms a central base element with end flaps at opposite ends and side elements formed with gussets.
  • the six side walls of a pack are formed from this rigid material. Some areas are stiffened several times. In the worst case, there may be up to six layers of overlap in the closure areas. No information is given on the economic viability or improvement of the ecological properties. The amount of material is neither reduced, nor is the folding process simplified. Rather, due to the complicated design of the cut, a considerable waste in material production and cut production can be expected.
  • For the economical application of such gable packaging during production and filling there is a need to form an intermediate product after the production of a suitable material web and before filling, which is optimally prepared but easy to transport and use.
  • the present invention is based on the task of specifying a method for producing folding boxes which, taking into account the economic production parameters such as material requirements, material waste, energy requirements and the need for special machine elements, and the ecological justification such as small quantities of material, optimization with regard to Stiffness, portability and the like is improved.
  • Another object of the invention is to provide a method for producing an intermediate product from a multilayer, foldable base material for forming folding boxes, which can be carried out in an economical manner and to optimize a simple and economical conversion from the web material to the finished packaging.
  • the invention proposes that at least one stiffening intermediate layer be inserted between at least one flexible outer or inner layer in such a way that essentially rectangular blanks can be formed, one edge length of which corresponds to the circumference of the folding box to be formed Sidewall area plus a supplement to form a strip-like edge corresponds and the other edge length corresponds to the height of the sidewall area of the folding box to be formed plus the length of the formation of the upper and lower closure areas, and that the at least one stiffening intermediate layer covers the area of the base material corresponding to the side wall area of the folding box to be formed, while outside the side wall area all folded edges are formed free of stiffening intermediate layer material only by flexible material.
  • the invention further proposes that after folding the side wall region, the strip-like edge is closed as an intermediate product to form a material hose, and that the lower and upper closure regions are closed.
  • the solution according to the invention also provides a simple method for forming an intermediate product and provides a completely novel intermediate product which, after the production of a suitable base material, which is usually in web form, after production of blanks, reaches a production status which allows the material to be transported easily but the subsequent application is considerably simplified. This is brought about by an intermediate product in the form of a material hose according to the invention.
  • both the outer layer and the inner layer are used without further waste so that essentially rectangular blanks can be formed.
  • a stiffening intermediate layer is introduced between the two layers and, as far as the side wall area of the folding box to be formed is concerned, also has a simple rectangular cut. However, this rectangular cut of the intermediate layer is smaller than the rectangular cut of the outer or inner layer.
  • the edge length in the circumferential direction of the side wall region of the folding box to be formed is such that the outer or inner layer has a longer edge than the intermediate layer. An edge thus remains, which forms a strip in the folding box to be formed. Its function will be described later.
  • the edge length of the intermediate layer is considerably shorter than that of the outer or inner layer, so that the closure regions are not filled with the rectangular intermediate layer region which forms the side wall area.
  • triangles can be arranged in the closure areas for stiffening or infill, but it is essential that all folded edges remain free of stiffening intermediate layer material and are formed only by flexible material.
  • the construction according to the invention makes it possible to use almost any, ie also recycled, material as a stiffening intermediate layer.
  • the outer layer and inner layer can be adapted to the area of application, the filling medium and the like.
  • the choice of stiffening material is of secondary importance as long as the mechanical properties are achieved.
  • the folding edges in the closure area which are kept free of intermediate material, enable simple further processing of the base material. No high folding forces need to be applied. This also reduces the mechanical work involved in further processing. In the simplest form, only the
  • the upper and lower closure area i.e. the packaging base and packaging gable, consist exclusively of thin, flexible material. Folding is therefore considerably simplified. This also applies to gluing or welding the layers. Only as much material is used as is absolutely necessary.
  • the edge length of the outer or inner layer compared to the intermediate layer is such that an edge region of the outer or inner layer remains on both corresponding edges of the intermediate layer.
  • these two edge regions made of flexible material can thus be welded or glued to one another, that is to say they can be connected homogeneously.
  • the edge regions can also be milled or folded over or sealed with a strip of polyethylene and the like. This ensures simple, liquid-tight sealing of the packaging, and also precludes the stiffening material from coming into contact with the liquid.
  • the resulting connecting strip can be folded over and attached to the outside of the packaging on one of the side surfaces, whereby only flexible material is also attached to flexible material.
  • Particularly simple manufacture of a material hose as an intermediate product is guaranteed.
  • the substantially rectangular intermediate layer is provided with fold lines for the formation of the side wall.
  • One fold line should be formed less than side walls. Since the packaging can have a cuboid, but also a polygonal cross-section, that is to say triangular, octagonal and the like, the corresponding design options result from the fold line arrangement.
  • the fold lines in the intermediate layer material which are essentially parallel to one another for the side wall formation, all run parallel in the feed direction of the intermediate layer material to the material webs of the outer and inner layers.
  • This particular configuration according to the invention simplifies the further processing of the base material, since no forces have to be applied transversely to the conveying direction, which could interrupt the conveying flow.
  • the fold lines are formed only shortly before the interlayer material is introduced between the outer and inner layers.
  • the closure areas which are free of interlayer material per se, can be covered, for example, with triangular interlayer material surfaces outside the fold lines.
  • the intermediate layer materials as well as the outer or inner layer materials can preferably be fed to a press roll system in the form of a web, for example drawn off from rolls.
  • the intermediate layer materials as well as the outer or inner layer materials can be supplied as a blank, for example from a stack.
  • a material web forming an outer layer and a material web forming an inner layer are fed to a pair of press rolls, essentially overlapping one another. Before being fed, the material webs can be coated with an adhesive material for the purpose of gluing them together.
  • the interlayer material which is also web-shaped from a roll peeled off, provided with folding lines and cut to length, passed between the outer and inner layers.
  • the interlayer material can also be supplied as a blank. After exiting the pair of rollers, the material web of the base material is ready. It goes without saying that further intermediate layers, flexible or rigid, can be added accordingly. Outer and inner layers can also be constructed in a sandwich-like manner and connected to one another in the manner described above.
  • the width of the material webs forming the outer or inner layers is the width which corresponds to the side wall circumference plus the connecting edge.
  • the material forming the outer and inner layers is completely or partially bonded to one another in all areas in which the two layers touch each other.
  • the two layers preferably consist of a kraft paper and the surfaces forming the inside and outside of the packaging are coated.
  • a moisture protection coating is recommended.
  • the kraft paper is preferably a bleached, tear-resistant, machine-smooth material without a line with a basis weight of 50 to 80 g / m ⁇ , depending on the planned packaging size.
  • the inner layer can be provided with a light blocking film, preferably an aluminum film with a moisture protection coating.
  • the moisture protection coating can preferably be a polyethylene coating with 25 to 30 g / m 2 basis weight. A corresponding moisture protection coating can be applied to the outside, but 1 2 to 1 5 g / m 2 are sufficient.
  • the outer and inner layer material can be made of plastic or a plastic-metal connection.
  • the intermediate layer is preferably made of gray cardboard, in particular with a weight per unit area of 250 g / m 2 or more, depending on the pack size and the stiffness requirement. At least one of the outer and inner layers is glued to the intermediate layer material. The bonds can be carried out selectively and can be detached using an appropriate pressure sensitive adhesive. It is entirely sufficient if the intermediate layer material can be arranged in a stationary manner on one of the webs during the production process. Depending on the application, it can be determined whether there is still a bond. It is also possible to form pockets between the eye layers, in which stiffening material is enclosed.
  • the intermediate layer with a narrow area together with the outside - and inner layer is folded over.
  • the intermediate layer in one edge region is thus dimensioned from one side edge to the other without an edge region consisting only of flexible material remaining. Nevertheless, a single-sided or double-sided edge is provided for gluing. After folding over the side edge area to form a stabilized side edge, care must be taken that the inner and / or outer layer material covers the intermediate layer material in such a way that it is neither visible nor vulnerable to external influences. The material that is protected from sight and influence is only used for edge reinforcement.
  • the invention provides a new method for producing folding boxes, an intermediate product and a base material for packaging, in particular folding boxes with a gable closure, which offers many advantages.
  • the corresponding operations for creating blanks are also very simple.
  • the production of the intermediate product is very simple and automatable.
  • the intermediate product itself can then leave the material-producing plant and be transported to a filling station, where it can be filled simply by unfolding and then closing the bottom. Finally, the second closure can then be made so that the packaging is filled and ready.
  • the packaging made from the new base material is significantly improved since it can be opened easily because there are no large, continuous stiffening areas.
  • Fig. 1 is a schematic sketchy representation of a
  • FIG. 2 shows a perspective view of an exemplary embodiment of a base material web
  • FIG. 3 shows a sectional view along III-III according to FIG. 2;
  • FIG. 4 shows a perspective illustration of an exemplary embodiment for packaging using the base material
  • FIG. 5 shows a schematic illustration of an exemplary embodiment for a blank
  • FIG. 6 shows a schematic, perspective view of a first method step for producing an intermediate product
  • Fig. 7 is a schematic, perspective view of an intermediate and Fig. 8 is a side view of a folded intermediate product.
  • the material rolls 1, 2 and 3 are shown in FIG. 1.
  • the material rolls 1 and 2 contain the outer layer material 4 or the inner layer material 5 and the material roll 3 contains the intermediate layer material 6.
  • the intermediate layer material 6 can also be a blank.
  • the intermediate layers 7 are formed after the introduction of fold lines and cutting the blank from the material roll 3.
  • the intermediate layers 7 are then guided over a belt 8 into the nip between the rollers 9 and 10.
  • the outer layer material 4 or the inner layer material 5 are guided over glue rollers 1 1, 1 2. These are shown schematically and symbolize a coating unit. In addition to glue, other coatings can also be applied at these points if necessary. Other web treatments can also be carried out, for example preheating by means of hot air, radiation or the like, cooling if necessary or structure-changing effects, radiation or the like if this is desired.
  • the finished base material 1 3 emerges from the pair of rollers 9, 10, which is also only shown symbolically, so that an entire pressing or joining station can also be formed here. This can be divided directly or in later work sequences along the cut edges 15, 16 according to FIG. 2 into cuts 14.
  • Each of the blanks 14 has the intermediate layer 7 approximately in a central position, so that the side edges 17, 1 8 are also formed to form a liquid-tight side wall closure.
  • the closure edges 19, 20 are formed, which are designed to form a floor or a gable closure. Since only flexible materials are arranged here, the packaging is easy to manufacture.
  • the side edges 1 7, 1 8 overlap. These can be closed, bent and one of the outside Attach side panels.
  • the material hose formed in this way can be fed, for example, as an intermediate product for further processing and filling.
  • FIG. 3 shows a sectional view along the section line III-III according to FIG. 2. Here it can be seen how the intermediate layers 7 are introduced between the outer layer material 4 and the inner layer material 5 in order to form a composite material.
  • the gable package 21 shown in FIG. 4 has the side wall region 22 and is provided with a cuboid cross section in the exemplary embodiment shown.
  • the floor 23 and the gable 24 are closed.
  • the folding edges 25, which are introduced exclusively into the flexible material, are shown.
  • the closure 26 then finally results on the upper edge.
  • FIG. 5 shows an exemplary embodiment of a blank 31 which consists of an outer and an inner layer made of flexible material 32, between which a stiffening intermediate layer 33, for example cardboard, is inserted. There remain upper and lower free edges in which there is no interlayer material. In addition, left and right side edges 35 and 36 remain in the image plane. These are of particular importance for the formation of the intermediate product.
  • the blank is folded such that a material tube 37 is formed in the intermediate layer material 33 using the fold lines 34, after which the two side edges 35, 36 are connected to one another.
  • This connection is preferably carried out by gluing or welding, so that there is absolute moisture tightness.
  • the elongated side edge marked 39 in FIG. 6 is formed, here from the intermediate layer material.
  • the inner and outer layers are preferably welded or glued in the area of the side edges 35, 36 and then folded over with the extended side edge 39 of the intermediate layer 33 and can also be glued or welded on one side layer.
  • the side edges are then, for example, in the direction of arrow 38 to the adjacent Sidewall created and attached there, which also happens by gluing, welding or the like.
  • the result is the material hose shown in FIG. 7, which can be folded flat again, so that it takes on the shape shown in FIG. 8. This material hose can be stacked and transported and easily processed into packaging by machine.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un matériau de base multicouche pliable, destiné à former des boîtes pliantes et vise à un perfectionnement de ce procédé eu égard à des paramètres économiques de production, tels que consommation en matériau, consommation d'énergie et demande en éléments spéciaux de machine, ainsi qu'aux aspects écologiques, tels que faibles quantités de matériau, optimisation sur le plan rigidité, aptitude au transport et analogue. L'invention a en conséquence pour objet un procédé de fabrication d'un matériau pliable multicouche pour la formation de boîtes pliantes comprenant une zone de parois latérales, des zones de fermeture supérieure et inférieure, en particulier pour milieux fluides, caractérisé en ce qu'au moins une couche intermédiaire de renfort est insérée entre au moins une couche extérieure ou intérieure flexible, de manière à former des pièces découpées sensiblement rectangulaires, dont une longueur du bord correspond au pourtour de la boîte à former dans la zone des parois latérales, en plus d'un supplément pour générer un bord en forme de bande, et dont l'autre longueur du bord correspond à la hauteur de la zone des parois latérales de la boîte, en plus des longueurs pour former les zones de fermeture supérieure et inférieure, et en ce qu'au moins la couche intermédiaire de renfort recouvre la zone du matériau de base correspondant à la zone des parois latérales de la boîte, cependant qu'à l'extérieur de ladite zone des parois latérales, tous les bords repliés ne sont formés que de matériaux souples exempts du matériau de renfort des couches intermédiaires.
PCT/EP1997/007027 1996-12-14 1997-12-15 Procede de fabrication de boites pliantes et materiau de base et produits intermediaires pour cette fabrication WO1998026989A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE19652135.1 1996-12-14
DE19652137.8 1996-12-14
DE19652138.6961214 1996-12-14
DE19652135A DE19652135A1 (de) 1996-12-14 1996-12-14 Verfahren zur Herstellung von Basismaterial zur Bildung von Faltschachteln
DE19652137A DE19652137A1 (de) 1996-12-14 1996-12-14 Verfahren zur Herstellung eines Zwischenproduktes zur Bildung von Faltschachteln
DE19652138A DE19652138A1 (de) 1996-12-14 1996-12-14 Verfahren zur Herstellung von Faltschachteln

Publications (1)

Publication Number Publication Date
WO1998026989A1 true WO1998026989A1 (fr) 1998-06-25

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ID=27216925

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Application Number Title Priority Date Filing Date
PCT/EP1997/007027 WO1998026989A1 (fr) 1996-12-14 1997-12-15 Procede de fabrication de boites pliantes et materiau de base et produits intermediaires pour cette fabrication

Country Status (1)

Country Link
WO (1) WO1998026989A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3942708A (en) * 1973-03-16 1976-03-09 Christenssons Maskiner & Patenter Aktiebolag Liquid and air tight package
US4082216A (en) * 1977-02-07 1978-04-04 Eli Lilly And Company Carton and bag container
EP0108537A1 (fr) * 1982-10-22 1984-05-16 Tri-Engle Systems Limited Eléments d'emballage
EP0132191A2 (fr) * 1983-07-18 1985-01-23 Dupuy Engineering S.A. (D.E.S.A.) Procédé pour le renforcement des boîtes en carton
EP0425279A1 (fr) * 1989-10-24 1991-05-02 Tri-Engle Systems Limited Conteneur et procédé pour sa fabrication

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3942708A (en) * 1973-03-16 1976-03-09 Christenssons Maskiner & Patenter Aktiebolag Liquid and air tight package
US4082216A (en) * 1977-02-07 1978-04-04 Eli Lilly And Company Carton and bag container
EP0108537A1 (fr) * 1982-10-22 1984-05-16 Tri-Engle Systems Limited Eléments d'emballage
EP0132191A2 (fr) * 1983-07-18 1985-01-23 Dupuy Engineering S.A. (D.E.S.A.) Procédé pour le renforcement des boîtes en carton
EP0425279A1 (fr) * 1989-10-24 1991-05-02 Tri-Engle Systems Limited Conteneur et procédé pour sa fabrication

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