WO2006068585A1 - A packaging laminate, a method in connection with the production of it, and a packaging container - Google Patents
A packaging laminate, a method in connection with the production of it, and a packaging container Download PDFInfo
- Publication number
- WO2006068585A1 WO2006068585A1 PCT/SE2005/001912 SE2005001912W WO2006068585A1 WO 2006068585 A1 WO2006068585 A1 WO 2006068585A1 SE 2005001912 W SE2005001912 W SE 2005001912W WO 2006068585 A1 WO2006068585 A1 WO 2006068585A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- layer
- density polyethylene
- low density
- linear low
- packaging laminate
- Prior art date
Links
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 95
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000004743 Polypropylene Substances 0.000 claims abstract description 49
- -1 polypropylene Polymers 0.000 claims abstract description 49
- 229920001155 polypropylene Polymers 0.000 claims abstract description 46
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000004411 aluminium Substances 0.000 claims abstract description 33
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 33
- 230000004888 barrier function Effects 0.000 claims abstract description 33
- 239000002253 acid Substances 0.000 claims abstract description 32
- 229920000642 polymer Polymers 0.000 claims abstract description 31
- 229920000092 linear low density polyethylene Polymers 0.000 claims abstract description 29
- 239000004707 linear low-density polyethylene Substances 0.000 claims abstract description 29
- 229920002126 Acrylic acid copolymer Polymers 0.000 claims abstract description 28
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims abstract description 27
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000005977 Ethylene Substances 0.000 claims abstract description 26
- 235000013305 food Nutrition 0.000 claims abstract description 21
- 239000011087 paperboard Substances 0.000 claims abstract description 11
- 239000000123 paper Substances 0.000 claims abstract description 10
- 229920001526 metallocene linear low density polyethylene Polymers 0.000 claims description 10
- 229920003023 plastic Polymers 0.000 claims description 10
- 239000004033 plastic Substances 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 6
- 239000011449 brick Substances 0.000 claims description 3
- 238000007765 extrusion coating Methods 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 88
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 150000007513 acids Chemical class 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000005030 aluminium foil Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 2
- 235000021588 free fatty acids Nutrition 0.000 description 2
- 241000207199 Citrus Species 0.000 description 1
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 1
- 240000003768 Solanum lycopersicum Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 235000020971 citrus fruits Nutrition 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 description 1
- 229920005648 ethylene methacrylic acid copolymer Polymers 0.000 description 1
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 235000021056 liquid food Nutrition 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 229920001179 medium density polyethylene Polymers 0.000 description 1
- 239000004701 medium-density polyethylene Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 235000013997 pineapple juice Nutrition 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a non-planar shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a non-planar shape
- B32B1/08—Tubular products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/082—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising vinyl resins; comprising acrylic resins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/085—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/12—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
- B32B27/327—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polyolefins obtained by a metallocene or single-site catalyst
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- 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
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/40—Applications of laminates for particular packaging purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/05—5 or more layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/31—Heat sealable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/40—Closed containers
- B32B2439/60—Bottles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/40—Closed containers
- B32B2439/62—Boxes, cartons, cases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/70—Food packaging
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1303—Paper containing [e.g., paperboard, cardboard, fiberboard, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1303—Paper containing [e.g., paperboard, cardboard, fiberboard, etc.]
- Y10T428/1307—Bag or tubular film [e.g., pouch, flexible food casing, envelope, etc.]
Definitions
- a PACKAGING LAMINATE 5 A METHOD IN CONNECTION WITH THE PRODUCTION OF IT, A FILM FOR IT, AND A PACKAGING CONTAINER
- the present invention relates to a packaging laminate for a packaging container for a food product, which packaging laminate comprises an outer polypropylene based heat sealable layer, a paper or paperboard based bulk layer, an aluminium gas barrier layer, and an inside comprising an inner polypropylene based heat sealable layer.
- the invention also relates to a film intended to form the inside of the packaging laminate, a method in connection with the production of the packaging laminate, and a packaging container formed from the packaging laminate.
- Such a - packaging may be of the type having a plastic top that is heat sealed to the container, body, which plastic top preferably has outer polypropylene based layers and an opening device.
- the packaging container may be fold-formed to a brick shape, from said packaging laminate, hot-filled with the food product, and sealed.
- WO2003SE01793 describes a type of packaging container for liquid food, which makes use of heat sealing by induction.
- the packaging container consists of a first and a second container part that are heat sealed to each other.
- the first part is of tubular shape and has been formed from a sheet of packaging material coated with thermoplastics and having a core layer of paper or paperboard and at least one layer of aluminium foil.
- the sheet has a first sealed overlap longitudinal joint between two mutually opposed edge sections of the sheet.
- the second part that consists of a plastic top having an opening device, is sealed by a second overlap joint, to the first part.
- packaging container formed from a packaging laminate of the type which is described above is known from, for example, international patent application WO97/02140.
- packaging containers able to be hot filled are produced in that the packaging blank is first raised to an open, tubular packaging carton which is sealed at its one end by fold forming and thermosealing of continuous, foldable end panels of the packaging carton, for the formation of a substantially planar bottom (or top) closure.
- the packaging carton provided with a bottom (or top) is hot filled under sterile conditions (at least 80 0 C but below 100 °C) with the relevant contents, e.g. food, through its open end. Thereafter the open end is sealed by an additional fold forming and thermosealing of corresponding end panels of the packaging carton for the formation of a substantially planar top (or bottom) closure.
- the present invention has for its object to provide a packaging laminate, a film for such a packaging laminate and a packaging container, by which the above mentioned problems are alleviated or eliminated.
- a packaging laminate for a packaging container for a food product which packaging laminate comprises an outer polypropylene based heat sealable layer, a paper or paperboard based bulk layer, an aluminium gas barrier layer, and an inside comprising an inner polypropylene based heat sealable layer, in which packaging laminate said inner polypropylene based heat sealable layer is bonded to said aluminium gas barrier layer by intermediate layers of linear low density polyethylene; and ethylene (meth)acrylic acid copolymer or other acid polymer; said ethylene (meth)acrylic acid copolymer or other acid polymer being directly bonded to said aluminium gas barrier layer.
- a film intended to form an inside of a packaging laminate, for a packaging container for a food product comprising an outer polypropylene based heat sealable layer, a paper or paperboard based bulk layer, and an aluminium gas barrier layer, in which film an ethylene (meth)acrylic acid copolymer or other acid polymer layer is directly bonded to a linear low density polyethylene layer, which in turn is directly bonded to a polypropylene based heat sealable layer in said film.
- ethylene (meth)acrylic acid copolymer or other acid polymer is meant ethylene acrylic acid copolymer, ethylene methacrylic acid copolymer or some other acid polymer.
- said linear low density polyethylene is chosen from enhanced linear low density polyethylene and metallocene linear low density polyethylene.
- enhanced linear low density polyethylene is meant for example what is referred to by Dow as enhanced polyethylene, e.g. ELITE 5400G by Dow.
- the linear low density polyethylene layer provides for a very high level of adhesion both to the (meth)acrylic acid copolymer or other acid polymer layer and to the inner polypropylene based heat sealable layer. Hence, an inside is formed that fulfils the requirements on food contact, heat sealability etc., as well as adhesion requirements, even in case of food products comprising, pickled in or releasing acidic compounds.
- the linear low density polyethylene layer is directly bonded to the inner polypropylene based heat sealable layer.
- the linear low density polyethylene layer is also directly bonded to the ethylene (meth)acrylic acid copolymer or other acid polymer layer, on its other side.
- the ethylene (meth)acrylic acid copolymer or other acid polymer layer has a thickness of 2-20 ⁇ m, preferably 3-12 ⁇ m and even more preferred 4-8 ⁇ m.
- the ethylene (meth)acrylic acid copolymer or other acid polymer layer, the linear low density polyethylene layer and the inner polypropylene based heat sealable layer have a total thickness of 10-100 ⁇ m, preferably 15-60 ⁇ m and even more preferred 20-40 ⁇ m. Of that total thickness, 10-70 %, preferably 15-60 % and even more preferred 25-50 % is constituted by said inner polypropylene based heat sealable layer.
- the inner polypropylene based heat sealable layer is of a grade that provides for a good adhesion to the linear low density polyethylene layer without using a tie layer, although it is conceivable to use such a tie layer.
- a packaging container according to the invention has a container body formed from a packaging laminate according to the above.
- a first embodiment of the packaging container has a plastic top that is heat sealed to the container body, which plastic top preferably has outer polypropylene based layers and an opening device.
- a second embodiment of the packaging container is fold-formed to a brick shape, from the packaging laminate, hot-filled with the food product, and sealed.
- the packaging container according to the invention is aseptic, preferably by sterilisation.
- a pre-made film comprising the polypropylene based heat sealable layer, the linear low density polyethylene layer, and the ethylene (meth)acrylic acid copolymer or other acid polymer layer is durably joined with the aluminium gas barrier layer.
- the film is joined with the aluminium gas barrier layer in the same nip as that in which the paper or paperboard based bulk layer is joined, by extrusion of an intermediate laminate layer, to the aluminium gas barrier layer.
- the film is joined with the aluminium gas barrier layer in a subsequent nip.
- the polypropylene based heat sealable layer, the linear low density polyethylene layer, and the ethylene (meth)acrylic acid copolymer or other acid polymer layer are durably joined with the aluminium gas barrier layer by co-extrusion coating onto the aluminium gas barrier layer.
- a pre-made film comprising the polypropylene based heat sealable layer and the linear low density polyethylene layer is durably joined with the aluminium gas barrier layer that previously has been coated by the ethylene (meth)acrylic acid copolymer or other acid polymer layer.
- Fig. 1 is showing a cross-section of the structure of a preferred film according to the invention, for a packaging laminate according to the invention
- Fig. 2 is showing a cross-section of the structure of a preferred packaging laminate according to the invention
- FIG. 3 is showing a first embodiment of a packaging container according to the invention
- Fig. 4 is showing a second embodiment of a packaging container according to the invention.
- the film 10 is composed of three layers; an inner polypropylene based heat sealable layer 12, an intermediate metallocene linear low density polyethylene layer, and an ethylene (meth)acrylic acid copolymer or other acid polymer layer 16.
- the film may be co-extrusion blown or co-extrusion cast and the grades of the polymers are chosen to fit the production method.
- the inner polypropylene based heat sealable layer 12 is called “inner” because it is intended to form the inside of a packaging container comprising the film, i.e. it is intended to be in contact with the food product inside the packaging container.
- the inner polypropylene based heat sealable layer 12 may be formed of several co- extruded part layers (not shown), optionally of different grades, and in this preferred embodiment it has a thickness of 10 ⁇ m.
- the inner polypropylene based heat sealable layer 12 is directly bonded, i.e. preferably without a tie layer, to a metallocene linear low density polyethylene layer 15.
- the metallocene linear low density polyethylene layer 15 is a metallocene linear low density polyethylene (m-LLDPE) layer 15 that has a thickness of 9 ⁇ m.
- the metallocene linear low density polyethylene layer 15 is in turn directly bonded to an ethylene (meth)acrylic acid copolymer or other acid polymer layer 16.
- the ethylene (meth)acrylic acid copolymer or other acid polymer layer 16 is an ethylene acrylic acid copolymer or other acid polymer layer 16 that has a thickness of 6 ⁇ ,m. It is intended to be directly bonded to an aluminium gas barrier layer of a packaging laminate.
- Fig. 2 is showing such a packaging laminate 20 according to a preferred embodiment of the invention.
- the inside of the packaging laminate 20 is formed of the film 10 shown in Fig. 1.
- the film 10 has been laminated in a nip, to an aluminium gas barrier layer 14, preferably at the same time as a paper or paperboard based bulk layer 11 is laminated to the aluminium gas barrier layer 14 by means of an intermediate laminate layer 17, that may be polyethylene or polypropylene based .
- an intermediate polyethylene laminate layer may be made of high density polyethylene or medium density polyethylene or low density polyethylene.
- an intermediate propylene-based laminate layer may be made of polypropylene, grafted polypropylene or a combination, such as co-extrusion, of polypropylene and grafted polypropylene.
- the inside 12, 15, 16 is (co)extrusion coated directly onto the aluminium gas barrier layer 14.
- An outer polypropylene based heat sealable layer 13 forms the outside of the packaging laminate 20.
- Many variants of the packaging laminate are however conceivable, all having in common though that they have a bulk layer of paperboard, an aluminium gas barrier layer, and an outwardly facing surface based on polypropylene.
- Fig. 3 shows a first embodiment of a packaging container 30 formed of the packaging laminate 20 shown in Fig. 2, which packaging container 30 has longitudinal and transversal seals 33a, 33b, and is hot filled with the food product. It is constituted by a dimension stabile parallelepipedic packaging container.
- the packaging container may have an opening device 34 or it may simply have a perforated tear opening (not shown).
- Fig. 4 is showing a second embodiment of a packaging container 40.
- a plastic top 44 is heat sealed 48 to the inside of the upper end of the packaging laminate 20 that forms a sleeve or container body having a longitudinal seal 42.
- the plastic top 44 exhibits an opening device 46.
- the plastic top has the following cross-sectional structure, as seen from the inside of the top, and out: PP/Adhesive/EVOH/Adhesive/PP. Many variants are however conceivable, all having in common though that they have an outwardly facing surface of PP.
- the bottom of the sleeve or container body is fold-formed, after filling, and sealed to form a planar bottom.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Laminated Bodies (AREA)
- Cartons (AREA)
- Wrappers (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/792,584 US20080107845A1 (en) | 2004-12-22 | 2005-12-14 | Packaging Laminate, A Method In Connection With The Production Of It, And A Packaging Container |
EP05816545A EP1831007A4 (en) | 2004-12-22 | 2005-12-14 | A packaging laminate, a method in connection with the production of it, and a packaging container |
MX2007006685A MX2007006685A (en) | 2004-12-22 | 2005-12-14 | A packaging laminate, a method in connection with the production of it, and a packaging container. |
JP2007548141A JP2008525224A (en) | 2004-12-22 | 2005-12-14 | Laminate for packaging, production method thereof, film therefor, and packaging container |
BRPI0519493-8A BRPI0519493A2 (en) | 2004-12-22 | 2005-12-14 | packaging laminate, film, packaging container, and, method related to the production of packaging laminate |
CA002590854A CA2590854A1 (en) | 2004-12-22 | 2005-12-14 | A packaging laminate, a method in connection with the production of it, and a packaging container |
TW094147855A TW200724373A (en) | 2004-12-22 | 2005-12-30 | A packaging laminate, a method in connection with the production of it, a film for it, and a packaging container |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0403182-9 | 2004-12-22 | ||
SE0403182A SE528259C2 (en) | 2004-12-22 | 2004-12-22 | Packaging laminates, methods in connection with their manufacture, film for its manufacture and a packaging container |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006068585A1 true WO2006068585A1 (en) | 2006-06-29 |
Family
ID=34102129
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE2005/001912 WO2006068585A1 (en) | 2004-12-22 | 2005-12-14 | A packaging laminate, a method in connection with the production of it, and a packaging container |
Country Status (11)
Country | Link |
---|---|
US (1) | US20080107845A1 (en) |
EP (1) | EP1831007A4 (en) |
JP (1) | JP2008525224A (en) |
KR (1) | KR20070090201A (en) |
CN (1) | CN101065241A (en) |
BR (1) | BRPI0519493A2 (en) |
CA (1) | CA2590854A1 (en) |
MX (1) | MX2007006685A (en) |
SA (1) | SA06270059B1 (en) |
SE (1) | SE528259C2 (en) |
WO (1) | WO2006068585A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010059091A1 (en) * | 2008-11-21 | 2010-05-27 | Tetra Laval Holdings & Finance S.A. | A method of packing and heat treating a food |
ITMI20121760A1 (en) * | 2012-10-18 | 2014-04-19 | Tecnofood Italia S R L | SINGLE-DOSE PACKAGING OF BREADSTANDING ASSISTANTS, AS WELL AS A METHOD OF REALIZING AND CONFORMING SUCH ACIDORS |
US9902124B2 (en) | 2011-07-26 | 2018-02-27 | Sig Technology Ag | Robust planar composite with an intermediate layer of increased vicat softening temperature |
US9902524B2 (en) | 2011-07-26 | 2018-02-27 | Sig Technology Ag | Planar composite with layers of plastic of different Vicat softening temperatures |
WO2021089118A1 (en) * | 2019-11-05 | 2021-05-14 | Å&R Carton Lund Aktiebolag | A packaging container comprising a container body and a base disc |
US11878840B2 (en) | 2019-07-02 | 2024-01-23 | Gpi Systems Ab | Method of producing a packaging container and a packaging container |
WO2024083814A1 (en) * | 2022-10-17 | 2024-04-25 | N.V. Nutricia | Card based package for sensitive materials |
US12006098B2 (en) | 2018-08-31 | 2024-06-11 | Gpi Systems Ab | Composite container with separable top, a body blank, and a method of separating a top end portion from a main body of the container |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE532388C2 (en) * | 2008-03-14 | 2010-01-12 | Tetra Laval Holdings & Finance | Packaging laminates and containers with two separate gas barrier layers and method for their preparation |
EP2199077B1 (en) * | 2008-12-17 | 2017-04-12 | Tetra Laval Holdings & Finance S.A. | Packaging laminate, method for manufacturing of the packaging laminate and packaging container produced there from |
WO2011088854A1 (en) * | 2010-01-20 | 2011-07-28 | Tetra Laval Holdings & Finance S.A. | Packaging laminate |
DE102010005848B4 (en) * | 2010-01-26 | 2012-03-01 | Sig Technology Ag | Method for producing a container for foods from an aluminum-free sheet-like composite with a multiple inner layer by cold folding |
DE102010005847B4 (en) * | 2010-01-26 | 2019-09-26 | Sig Technology Ag | A method of manufacturing a food-free aluminum-free laminar composite food container having a multiple inner layer by hot folding |
CN103313852B (en) * | 2011-01-05 | 2016-08-31 | 利乐拉瓦尔集团及财务有限公司 | Non-foil packaging laminate and its manufacture method and the packing container being made from |
JP6287364B2 (en) * | 2014-03-06 | 2018-03-07 | 大日本印刷株式会社 | Packaging material and packaging container using the same |
DE102014010016A1 (en) * | 2014-07-08 | 2016-01-14 | Sig Technology Ag | Sheet-like composite, in particular for containers, having a bonding agent layer characterized by various C = O group absorption maxima |
US20170225439A1 (en) * | 2014-08-14 | 2017-08-10 | Tetra Laval Holdings & Finance S.A. | Packaging laminate, method for producing same, and packaging container produced from the packaging laminate |
JP6545547B2 (en) * | 2015-07-07 | 2019-07-17 | サンスター株式会社 | Packaging material for packaging powder compositions containing cysteine proteases |
ES2774148T3 (en) * | 2017-05-31 | 2020-07-17 | Tetra Laval Holdings & Finance | Laminated packaging material, packaging containers made from it, and a method for manufacturing the laminated material |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1426124A (en) * | 1974-06-21 | 1976-02-25 | Victor Metal Products Inc | Laminated material |
US4214029A (en) * | 1978-10-30 | 1980-07-22 | Champion International Corporation | Packaging laminate |
EP0115111A1 (en) * | 1983-01-28 | 1984-08-08 | American Can Company | Laminates incorporating a polyacrylic-acid complex primer, packaging or containers made therefrom, and manufacture of said laminates |
WO1997002140A1 (en) * | 1995-07-03 | 1997-01-23 | Tetra Laval Holding & Finance S.A. | Packaging laminates based on cardboard and paper |
US6500556B1 (en) * | 1999-07-23 | 2002-12-31 | E. I. Du Pont De Nemours And Company | Ethylene acid copolymer with enhanced adhesion |
-
2004
- 2004-12-22 SE SE0403182A patent/SE528259C2/en not_active IP Right Cessation
-
2005
- 2005-12-14 BR BRPI0519493-8A patent/BRPI0519493A2/en not_active IP Right Cessation
- 2005-12-14 CA CA002590854A patent/CA2590854A1/en not_active Abandoned
- 2005-12-14 EP EP05816545A patent/EP1831007A4/en not_active Withdrawn
- 2005-12-14 CN CNA2005800405685A patent/CN101065241A/en active Pending
- 2005-12-14 KR KR1020077014086A patent/KR20070090201A/en not_active Application Discontinuation
- 2005-12-14 JP JP2007548141A patent/JP2008525224A/en not_active Ceased
- 2005-12-14 MX MX2007006685A patent/MX2007006685A/en not_active Application Discontinuation
- 2005-12-14 WO PCT/SE2005/001912 patent/WO2006068585A1/en active Application Filing
- 2005-12-14 US US11/792,584 patent/US20080107845A1/en not_active Abandoned
-
2006
- 2006-03-20 SA SA06270059A patent/SA06270059B1/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1426124A (en) * | 1974-06-21 | 1976-02-25 | Victor Metal Products Inc | Laminated material |
US4214029A (en) * | 1978-10-30 | 1980-07-22 | Champion International Corporation | Packaging laminate |
EP0115111A1 (en) * | 1983-01-28 | 1984-08-08 | American Can Company | Laminates incorporating a polyacrylic-acid complex primer, packaging or containers made therefrom, and manufacture of said laminates |
WO1997002140A1 (en) * | 1995-07-03 | 1997-01-23 | Tetra Laval Holding & Finance S.A. | Packaging laminates based on cardboard and paper |
US6500556B1 (en) * | 1999-07-23 | 2002-12-31 | E. I. Du Pont De Nemours And Company | Ethylene acid copolymer with enhanced adhesion |
Non-Patent Citations (1)
Title |
---|
See also references of EP1831007A4 * |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010059091A1 (en) * | 2008-11-21 | 2010-05-27 | Tetra Laval Holdings & Finance S.A. | A method of packing and heat treating a food |
US9902124B2 (en) | 2011-07-26 | 2018-02-27 | Sig Technology Ag | Robust planar composite with an intermediate layer of increased vicat softening temperature |
US9902524B2 (en) | 2011-07-26 | 2018-02-27 | Sig Technology Ag | Planar composite with layers of plastic of different Vicat softening temperatures |
ITMI20121760A1 (en) * | 2012-10-18 | 2014-04-19 | Tecnofood Italia S R L | SINGLE-DOSE PACKAGING OF BREADSTANDING ASSISTANTS, AS WELL AS A METHOD OF REALIZING AND CONFORMING SUCH ACIDORS |
US12006098B2 (en) | 2018-08-31 | 2024-06-11 | Gpi Systems Ab | Composite container with separable top, a body blank, and a method of separating a top end portion from a main body of the container |
US11878840B2 (en) | 2019-07-02 | 2024-01-23 | Gpi Systems Ab | Method of producing a packaging container and a packaging container |
WO2021089118A1 (en) * | 2019-11-05 | 2021-05-14 | Å&R Carton Lund Aktiebolag | A packaging container comprising a container body and a base disc |
US12091216B2 (en) | 2019-11-05 | 2024-09-17 | Ar Packaging Systems Ab | Packaging container comprising a container body and a base disc |
WO2024083814A1 (en) * | 2022-10-17 | 2024-04-25 | N.V. Nutricia | Card based package for sensitive materials |
Also Published As
Publication number | Publication date |
---|---|
MX2007006685A (en) | 2007-07-25 |
SE0403182D0 (en) | 2004-12-22 |
JP2008525224A (en) | 2008-07-17 |
SA06270059B1 (en) | 2009-06-01 |
US20080107845A1 (en) | 2008-05-08 |
KR20070090201A (en) | 2007-09-05 |
SE528259C2 (en) | 2006-10-03 |
CN101065241A (en) | 2007-10-31 |
SE0403182L (en) | 2006-06-23 |
BRPI0519493A2 (en) | 2009-02-03 |
EP1831007A1 (en) | 2007-09-12 |
CA2590854A1 (en) | 2006-06-29 |
EP1831007A4 (en) | 2012-12-26 |
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