EP0686567A2 - Récipient en matériau laminé pourvu d'une ouverture et sa méthode de fabrication - Google Patents
Récipient en matériau laminé pourvu d'une ouverture et sa méthode de fabrication Download PDFInfo
- Publication number
- EP0686567A2 EP0686567A2 EP95810374A EP95810374A EP0686567A2 EP 0686567 A2 EP0686567 A2 EP 0686567A2 EP 95810374 A EP95810374 A EP 95810374A EP 95810374 A EP95810374 A EP 95810374A EP 0686567 A2 EP0686567 A2 EP 0686567A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- opening
- container
- layers
- potential
- strip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 6
- 239000002648 laminated material Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 8
- 239000004698 Polyethylene Substances 0.000 claims description 6
- -1 polyethylene Polymers 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 239000007788 liquid Substances 0.000 description 5
- 230000035622 drinking Effects 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- 239000010902 straw Substances 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 235000013361 beverage Nutrition 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
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
- B65D5/70—Break-in flaps, or members adapted to be torn-off, to provide pouring openings
Definitions
- the invention lies in the field of the packaging industry and relates to a container and a method for producing the container according to the corresponding independent patent claims.
- the container consists of a laminated material, for example plastic-coated cardboard, and has an opening.
- Containers made of plastic-coated cardboard are widely used for the distribution, storage and consumption of liquid goods, especially beverages.
- the walls of such containers usually consist of a cardboard layer, which takes on the function of mechanical strength, and cover layers made of polyethylene, which make the cardboard liquid-tight.
- the inner side also carries a gas and aroma barrier layer.
- containers of this type are often equipped with a potential opening, that is to say with a location which is intended for this purpose To be opened to consumers.
- potential openings are places where the container wall is weakened. They can be covered with a peel-off strip or with a closure unit that can be opened. It turns out that once the potential opening has been opened, the container wall around the opening changes adversely because liquid is sucked up into the cardboard layer. For this reason, such containers are only suitable for very short use after the first opening.
- the basic idea of the invention is to make two openings in the container wall material: a first, larger opening in the middle layer or layers before the outer layers are laminated on, and a second, smaller opening in the outer layers after this have been laminated over the first opening.
- the second opening is either a potential opening, consisting of a line-shaped weak point within the first opening, which weak point runs essentially parallel to the edge around the first opening.
- the outer layers are broken along the weak point, with an edge along the edge of the first opening of mutually adhering outer layers remains, which completely covers the middle layer or layers.
- the second opening can also be a really open opening, which has the same edge made of outer layers and which is reclosed with, for example, a peel strip, care must be taken that the peel strip can be removed without the outer layer to which it is attached or the connection between the outer layers is damaged.
- the edge which is made of adhering outer layers, prevents any contact between the contents of the container and the middle layer or layers at all times, i.e. a middle layer of cardboard cannot absorb any liquid and thus change adversely.
- the described improvements regarding an opening in a container wall are not only advantageous for laminated wall materials with a cardboard layer, but generally for materials with a layer that is sensitive to contact with the container contents or that has a negative influence on the container contents.
- Figure 1 shows a cross section through a container wall in the area of a potential opening, as are known from containers made of coated cardboard.
- the container wall consists of a laminated material and consists for example of five layers: outer cover layer 4, cardboard 5, intermediate layer 6, gas and aroma barrier layer 7 and inner cover layer 8.
- the cardboard layer 5 gives the material the necessary mechanical strength.
- Inner and outer cover layers 4 and 8 are usually made of polyethylene and make the wall liquid-tight.
- the gas and aroma barrier layer 7 consists, for example, of aluminum and adheres to the cardboard 5 via an intermediate layer 6, for example of polyethylene. Layers 6 and 7 may also be missing.
- the potential opening according to the prior art is created by punching an opening into the cardboard (layer 5 or layers 5 to 7) before the cover layers 4 and 8 are laminated on. Between the punching out of the opening and the lamination of the cover layers, a piece of film 9 (for example made of aluminum) is usually welded over the inside of the opening. After the covering layers have been laminated on, a peeling strip 10 is attached to the outside of the potential opening by being welded onto the outer covering layer 4 (weld 100). The opening is usually positioned in the area of a container edge. The peel strip 10 then extends over the edge, while it is only welded to the edge of the container wall, so that the end of the peel strip can be easily gripped for opening.
- a piece of film 9 for example made of aluminum
- the pull-off strip 10 is torn away, parts of the outer cover layer 4, parts of the inner cover layer 8 and the film 9 being carried along with it. It is obvious that this covers the edge 51 of the carton 5, in particular exposed to the influence of the contents of the container, i.e. is wetted in the case of liquid content and thereby adversely changes.
- FIG. 2 shows a cross section through a container wall with a potential opening of an exemplary embodiment of the container according to the invention.
- the wall material again consists of the layers 4 to 8 already described.
- a first opening is punched into the cardboard layer 5.
- all other layers (4, 6, 7, 8) are laminated over the first opening and therefore adhere to one another within the first opening as well as at other locations.
- the layers spanning the first opening are embossed such that a line-shaped weak point 41 is created which runs within the first opening and substantially parallel to the edge of the carton around the first opening and defines a second opening which is smaller than that first opening in the cardboard layer 5.
- the potential second opening is opened by breaking the layers along the line-shaped weak point 41. Because the layers spanning the first opening adhere to each other and because the potential second opening is smaller than the first, the carton edge remains covered by at least one cover layer when the potential second opening is opened. For this reason, the edge of the box cannot absorb any liquid.
- FIG. 2 is advantageous for containers which are used, for example, with a drinking straw or with an insertable closure unit, the potential opening being opened with the aid of the drinking straw or the closure unit.
- Figure 3 shows a cross section through the wall and potential opening of another exemplary embodiment of the container according to the invention.
- the wall material is the same as in Figures 1 and 2 (layers 4 to 8).
- a first opening is punched into layers 5 through 7, then the cover layers 4 and 8 are laminated so that they span the first opening, then a line-shaped weak point 41 is embossed, which defines a potential second opening, smaller than the first opening.
- the potential second opening is then covered with a pull tab 10 to protect and reinforce it. Care must be taken that the peel strip 10 is only welded to the outer cover layer 4 within the line-shaped weak point 41. If the peeling strip 10 is torn off, the peeling strip 10 also removes the wall piece within the line-shaped weak point.
- the embodiment according to FIG. 3 is advantageous for an opening without the help of a drinking straw or a closure unit and is therefore advantageously used for a container whose opening is used directly as a pouring opening.
- Figure 4 shows a cross section through the wall and potential opening of another embodiment of the container according to the invention.
- the opening is created by punching out a first opening from the middle layers 5 to 7, by laminating the cover layers 4 and 8 over the first opening, by punching out a second opening from the layers 4 and 8 spanning the first opening, the second opening being smaller than the first opening, and by reclosing the second opening with a peel strip 10 which is welded to the outer cover layer 4 in the edge region of the second opening.
- Figure 5 shows a cross section through the wall and potential opening of a further exemplary embodiment of the container according to the invention.
- the opening in the container wall is the same as described in connection with FIG. 4.
- the opening is re-closed with a closure unit, consisting of a pouring part and a closure part, which closure unit is attached to the outside of the container above the opening.
- the closure unit is welded or glued to the container wall, for example.
- FIG. 6 shows a further way in which a pull-off strip can be applied in the area of a potential opening, for example in the area of a potential opening, as was described in connection with FIG. 3.
- the peel-off strip (10.1) carries, as the outermost layer facing the container wall, a peeling film 102, the feature of which is that it only adheres to the outer cover layer 4 even after welding so that it can be peeled off.
- the peeling film has an opening that is smaller than the potential second opening in the container wall.
- the peel strip is now in this way on the container wall, for example by Welding, fastened that the opening in the peeling film comes to lie within the line-shaped weak point 41. If such a pull-off strip is torn from the container wall, it tears the covering layers 4 and 8 with it in the region of the peeling film opening, these being broken along the line-shaped weak point 41.
- the cardboard edges around the opening remain covered by layers 4 and 8.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cartons (AREA)
- Laminated Bodies (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1838/94 | 1994-06-10 | ||
| CH183894 | 1994-06-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0686567A2 true EP0686567A2 (fr) | 1995-12-13 |
| EP0686567A3 EP0686567A3 (fr) | 1996-04-24 |
Family
ID=4219788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95810374A Withdrawn EP0686567A3 (fr) | 1994-06-10 | 1995-06-07 | Récipient en matériau laminé pourvu d'une ouverture et sa méthode de fabrication |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0686567A3 (fr) |
| JP (1) | JPH0848326A (fr) |
| AU (1) | AU2044195A (fr) |
| CA (1) | CA2151168A1 (fr) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999020531A1 (fr) * | 1997-10-22 | 1999-04-29 | Upm-Kymmene Corporation | Procede de fabrication d'un orifice de remplissage et de vidage utile pour un conteneur de conditionnement de liquide |
| WO2001085565A1 (fr) * | 2000-05-08 | 2001-11-15 | Tetra Laval Holdings & Finance Sa | Procede de production d'un materiau d'emballage |
| WO2002060770A1 (fr) * | 2001-01-16 | 2002-08-08 | Upm-Kymmene Corporation | Procede de fabrication d'un orifice permettant de vider un recipient d'emballage de liquide |
| WO2004108400A3 (fr) * | 2003-06-06 | 2005-04-14 | Sig Technology Ltd | Procede et dispositif pour fabriquer des enveloppes d'emballage pour des emballages composites en carton/plastique |
| US8871318B2 (en) | 2009-07-08 | 2014-10-28 | Tetra Laval Holdings & Finance S.A. | Robust packaging laminate, method for manufacturing of the packaging laminate and packaging container produced therefrom |
| CN114030762A (zh) * | 2021-11-15 | 2022-02-11 | 瀚森恒业(北京)商业有限公司 | 包装盒的封口结构、封口结构的生产工艺和包装盒 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7556191B2 (en) * | 2004-05-18 | 2009-07-07 | Evergreen Packaging, Inc. | Rupturable opening for sealed container |
| JP2008114871A (ja) * | 2006-11-01 | 2008-05-22 | Nihon Tetra Pak Kk | 包装紙容器及び容器製造装置 |
| JP6330304B2 (ja) * | 2013-12-05 | 2018-05-30 | 凸版印刷株式会社 | バッグインボックス包装体 |
| CN118647498A (zh) * | 2022-02-04 | 2024-09-13 | 利乐拉瓦尔集团及财务有限公司 | 包装材料及生产这样的包装材料的方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1000214A (en) * | 1963-01-16 | 1965-08-04 | Akerlund & Rausing Ab | A method of producing a container having an easily rupturable end closure |
| SE441666B (sv) * | 1984-03-21 | 1985-10-28 | Tetra Pak Int | Oppningsanordning vid forpackningsbehallare samt sett att tillverka densamma |
| DE4015119A1 (de) * | 1989-07-10 | 1991-01-31 | Pkl Verpackungssysteme Gmbh | Quaderfoermige giebelpackung mit im bereich des flachdachs angebrachtem ausgiesser |
| DK0577867T3 (da) * | 1992-07-06 | 1996-05-06 | Procter & Gamble | Aseptiske væskeemballeringsbeholdere med genoplukkelig åbning |
-
1995
- 1995-06-01 AU AU20441/95A patent/AU2044195A/en not_active Abandoned
- 1995-06-07 EP EP95810374A patent/EP0686567A3/fr not_active Withdrawn
- 1995-06-07 CA CA2151168A patent/CA2151168A1/fr active Pending
- 1995-06-12 JP JP7144991A patent/JPH0848326A/ja not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| None |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999020531A1 (fr) * | 1997-10-22 | 1999-04-29 | Upm-Kymmene Corporation | Procede de fabrication d'un orifice de remplissage et de vidage utile pour un conteneur de conditionnement de liquide |
| WO2001085565A1 (fr) * | 2000-05-08 | 2001-11-15 | Tetra Laval Holdings & Finance Sa | Procede de production d'un materiau d'emballage |
| US6884206B2 (en) | 2000-05-08 | 2005-04-26 | Tetra Laval Holdings & Finance S.A. | Method of producing a packaging material |
| WO2002060770A1 (fr) * | 2001-01-16 | 2002-08-08 | Upm-Kymmene Corporation | Procede de fabrication d'un orifice permettant de vider un recipient d'emballage de liquide |
| WO2004108400A3 (fr) * | 2003-06-06 | 2005-04-14 | Sig Technology Ltd | Procede et dispositif pour fabriquer des enveloppes d'emballage pour des emballages composites en carton/plastique |
| US8871318B2 (en) | 2009-07-08 | 2014-10-28 | Tetra Laval Holdings & Finance S.A. | Robust packaging laminate, method for manufacturing of the packaging laminate and packaging container produced therefrom |
| CN114030762A (zh) * | 2021-11-15 | 2022-02-11 | 瀚森恒业(北京)商业有限公司 | 包装盒的封口结构、封口结构的生产工艺和包装盒 |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2044195A (en) | 1995-12-21 |
| EP0686567A3 (fr) | 1996-04-24 |
| CA2151168A1 (fr) | 1995-12-11 |
| JPH0848326A (ja) | 1996-02-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| AK | Designated contracting states |
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| PUAL | Search report despatched |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
| 18W | Application withdrawn |
Withdrawal date: 19960430 |