WO2013098026A1 - A packaging laminate for a packaging container, as well as a packaging container produced from the packaging laminate - Google Patents
A packaging laminate for a packaging container, as well as a packaging container produced from the packaging laminate Download PDFInfo
- Publication number
- WO2013098026A1 WO2013098026A1 PCT/EP2012/073903 EP2012073903W WO2013098026A1 WO 2013098026 A1 WO2013098026 A1 WO 2013098026A1 EP 2012073903 W EP2012073903 W EP 2012073903W WO 2013098026 A1 WO2013098026 A1 WO 2013098026A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- packaging
- paper
- container
- packaging laminate
- coating
- Prior art date
Links
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 95
- 238000000576 coating method Methods 0.000 claims abstract description 54
- 239000011248 coating agent Substances 0.000 claims abstract description 50
- 239000000123 paper Substances 0.000 claims abstract description 50
- 239000011087 paperboard Substances 0.000 claims abstract description 41
- 239000000049 pigment Substances 0.000 claims abstract description 23
- 238000007639 printing Methods 0.000 claims abstract description 21
- 239000000853 adhesive Substances 0.000 claims abstract description 17
- 230000001070 adhesive effect Effects 0.000 claims abstract description 17
- 239000011230 binding agent Substances 0.000 claims abstract description 17
- 229920003023 plastic Polymers 0.000 claims abstract description 16
- 239000004033 plastic Substances 0.000 claims abstract description 15
- 229920002472 Starch Polymers 0.000 claims abstract description 13
- 239000008107 starch Substances 0.000 claims abstract description 13
- 235000019698 starch Nutrition 0.000 claims abstract description 13
- 239000007789 gas Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 claims description 8
- 235000013305 food Nutrition 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 239000005030 aluminium foil Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 229920001903 high density polyethylene Polymers 0.000 claims description 6
- 239000004700 high-density polyethylene Substances 0.000 claims description 6
- 229920000728 polyester Polymers 0.000 claims description 6
- -1 polypropylene Polymers 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 4
- 229910001882 dioxygen Inorganic materials 0.000 claims description 4
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 2
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 10
- 239000004816 latex Substances 0.000 description 8
- 229920000126 latex Polymers 0.000 description 8
- 239000004372 Polyvinyl alcohol Substances 0.000 description 6
- 238000003475 lamination Methods 0.000 description 6
- 229920000058 polyacrylate Polymers 0.000 description 6
- 229920002451 polyvinyl alcohol Polymers 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 description 5
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 4
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 4
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 150000004676 glycans Chemical class 0.000 description 4
- 229940071826 hydroxyethyl cellulose Drugs 0.000 description 4
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 4
- 239000005022 packaging material Substances 0.000 description 4
- 229920001282 polysaccharide Polymers 0.000 description 4
- 239000005017 polysaccharide Substances 0.000 description 4
- 102000004169 proteins and genes Human genes 0.000 description 4
- 108090000623 proteins and genes Proteins 0.000 description 4
- 230000006698 induction Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910052604 silicate mineral Inorganic materials 0.000 description 3
- 239000005995 Aluminium silicate Substances 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 2
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 2
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000002174 Styrene-butadiene Substances 0.000 description 2
- 229920006243 acrylic copolymer Polymers 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 2
- 235000010216 calcium carbonate Nutrition 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 2
- 239000000391 magnesium silicate Substances 0.000 description 2
- 229910052919 magnesium silicate Inorganic materials 0.000 description 2
- 235000019792 magnesium silicate Nutrition 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002689 polyvinyl acetate Polymers 0.000 description 2
- 239000011118 polyvinyl acetate Substances 0.000 description 2
- 239000006254 rheological additive Substances 0.000 description 2
- 239000011115 styrene butadiene Substances 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 235000010215 titanium dioxide Nutrition 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920001909 styrene-acrylic polymer Polymers 0.000 description 1
- 238000011179 visual inspection Methods 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
- 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
- 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
- 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
- B32B29/04—Layered products comprising a layer of paper or cardboard next to a particulate layer
-
- 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
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24851—Intermediate layer is discontinuous or differential
-
- 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
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24893—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material
- Y10T428/24901—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material including coloring matter
Definitions
- a PACKAGING LAMINATE FOR A PACKAGING CONTAINER AS WELL AS A PACKAGING CONTAINER PRODUCED FROM THE PACKAGING LAMINATE Technical field
- the present invention relates to a packaging laminate for a packaging container provided with decorative artwork and being of the type which is produced from a prefabricated, flat folded packaging blank of the packaging laminate, in that the packaging blank is first raised to an open, tubular container carton whose one end is sealed by fold forming and thermosealing of the corresponding foldable end panels of the container carton, for the formation of a liquid-tight, substantially planar bottom closure, whereafter the container carton provided with the bottom is filled with a food and the other end of the filled container carton is sealed by an additional fold forming and thermosealing of the corresponding foldable end panels of the container carton, for the formation of a liquid-tight, substantially planar top closure, the packaging laminate comprising a paper or paperboard layer whose one side has a printable coating of pigment and binder or adhesive in contact with the paper or paperboard layer and decorative artwork of printing ink applied directly on the printable coating by means of suitable printing technology.
- the present invention also relates to a packaging container of the type which, after filling and sealing, is to be subjected to a shelf-life-extending heat treatment in a retort with steam as heat medium, the packaging container being produced from a prefabricated, flat folded packaging blank of the packaging laminate in that the packaging blank is first raised to an open, tubular container carton whose one end is sealed by fold forming and thermosealing of the corresponding foldable end panels of the container carton, for the formation of a liquid-tight, substantially planar bottom closure, whereafter the container carton, provided with a bottom, is filled with a food and the other end of the filled container carton is sealed by an additional fold forming and thermosealing of the corresponding foldable end panels of the container carton, for the formation of a liquid-tight, substantially planar top closure.
- Background art
- a packaging laminate as well as a packaging container of the type described above are known from, for example, International Patent Application number PCT/SE2011/050978.
- the prior art packaging laminate has a rigid, but foldable layer of paper or paperboard and outer, liquid-tight, heat-resistant layers of plastic on both sides of the paper or paperboard layer. Between the paper or paperboard layer and one of the outer, liquid-tight plastic layers, the prior art packaging laminate has at least one additional layer possessing tightness properties vis-a-vis gases, in particular oxygen gas.
- thermosealing of the packaging laminate by so-called induction thermosealing which is a both rapid, simple and efficient sealing technology.
- a paper surface has a coarse as well as uneven surface profile which makes it difficult to print direct on the paper or paperboard surface with sufficiently uniform print quality.
- the surface of the paper or paperboard layer on the side intended for printing is therefore provided with a printable coating of pigment and binder or adhesive which renders the coarse paper or paperboard surface sufficiently even and smooth to be able to be printed with good print quality.
- a packaging laminate of the prior art type is produced from a web of paper or paperboard which, on its one side, has a printable coating of pigment and binder or adhesive in contact with the surface of the web.
- the web is unwound from a magazine reel and led through a printing station in which the web, on its coated side, is provided with the desired decorative artwork of printing ink which is printed on the printable coating of pigment and adhesive or binder.
- the paper or paperboard web provided with decorative artwork is led further to a lamination station in which the other or uncoated side of the web is provided with a layer of a material possessing tightness properties vis-a-vis gases, e.g. an aluminium foil, Alifoil, which is laminated to the paper or paperboard web.
- a material possessing tightness properties vis-a-vis gases e.g. an aluminium foil, Alifoil, which is laminated to the paper or paperboard web.
- the laminated web is led finally to a coating station in which the web is coated with outer, heat-resistant layers of plastic which are extruded on both sides of the web, whereafter the web is rolled up for further handling and use.
- a finished packaging container of the type described by way of introduction is produced in the following manner.
- the flat-folded blank is first raised to an open packaging carton whose one end (e.g. the bottom end) is sealed by fold forming and thermosealing of the corresponding foldable bottom panels of the packaging carton.
- the packaging carton provided with a bottom, is filled with the relevant food, whereafter the other end of the packaging carton (in this example the top end) is sealed by an additional fold forming and thermosealing operation of the corresponding foldable top panels of the packaging carton.
- the thus filled and sealed packaging container is thereafter ready to be subjected to a shelf-life-extending heat treatment in a retort with steam as the heat medium.
- Retortable packaging containers of which one well-known commercial package is sold under the name Tetra Recart, has many valuable advantages, not least for the consumer. They are mechanically strong and configurationally stable, at the same time as they are both easy to open and otherwise convenient to use. Moreover, they have the advantage over, for example, traditional conserve cans of metal and plastic that, after emptying, they may readily be compressed to but minimum space saving flat sheets by simple flattening.
- One object of the present invention is therefore to realise a packaging laminate of the type described by way of introduction, without those problems and drawbacks which are associated with the prior art packaging laminate.
- a further object of the present invention is to realise a packaging container produced from the packaging laminate which, after filling and sealing, is to be subjected to a shelf-life-extending heat treatment in a retort using steam as heat medium.
- a packaging laminate for a packaging container provided with decorative artwork and produced from a prefabricated, flat folded packaging blank of the packaging laminate in that the packaging blank is first raised to an open tubular container carton whose one end is sealed by fold forming and thermosealing of the corresponding foldable end panels of the container carton for the formation of a liquid-tight, substantially planar bottom closure, whereafter the container carton provided with the bottom is filled with a food, and the other end of the filled container carton is sealed by an additional fold forming and thermosealing of the corresponding foldable end panels of the container carton for the formation of a liquid-tight, substantially planar top closure, the packaging laminate comprising a paper or paperboard layer whose one side has a printable coating of pigment and adhesive or binder in contact with the paper or paperboard layer, with a decorative artwork of printing ink applied by suitable printing technology direct on the printable coating.
- the packaging laminate is characterised in that the other, or non-pigment coated side of the paper or paperboard layer has a coating of starch in contact with the paper or paperboard layer.
- the coating of starch may be made extremely thin and in practice is of a thickness of 1-5 g/m 2 , preferably 3 g/m 2 .
- the printable coating on the one side of the paper or paperboard layer comprises a combination of pigment and adhesive or binder, as well as at least one further substance capable of modifying the rheological properties of the coating.
- Examples of such printable coatings are those which are described and disclosed in International Patent Application PCT/SE2011/050978.
- Examples of usable binder or adhesive for the printable coating are selected from the group essentially comprising styrene butadiene latex, methyl metacrylate butadiene latex, polyacrylate latex, styrene acryl latex, polyvinyl acetate, polyvinyl alcohol, polysaccharides, starch, protein and combinations thereof.
- Examples of usable substances capable of modifying the viscosity of each respective coating are selected from the group essentially comprising protein, polysaccharides, carboxy methyl cellulose (CMC), hydroxy ethyl cellulose (HEC), alkali soluble acrylic polymer emulsion (ASE), hydrofobically modified alkali soluble acrylic polymer (HASE), polyurethane (PU), polyvinyl alcohol (PVOH) and starch.
- CMC carboxy methyl cellulose
- HEC hydroxy ethyl cellulose
- ASE alkali soluble acrylic polymer emulsion
- HASE hydrofobically modified alkali soluble acrylic polymer
- PU polyurethane
- PVOH polyvinyl alcohol
- Examples of usable pigment for both of the above mentioned surface coatings are selected from the group essentially comprising layered silicate mineral, hydratised magnesium silicate, calcium carbonate, titanium dioxide and kaolin.
- the printable coating in the packaging material according to the present invention may contain:
- rheology modifier a substance capable of modifying the rheological properties of the coating in a quantity of 0.1-1 %, calculated on the weight of the composition.
- the coating of starch has, as has already been mentioned, a thickness or coating quantity of less than 10 g/m 2 , preferably approx. 5 g/m 2 , and the printable coating has a corresponding thickness or coating quantity of 15-20 g/m 2 , preferably 20 g/m 2 .
- the packaging laminate according to the present invention has outer, liquid-tight layers of plastic which moreover should be sufficiently heat resistant to withstand such temperatures to which a packaging container produced from the packaging laminate is to be subjected when the closed packaging container, together with its filled contents, is heat treated in a retort with steam as heat medium.
- outer, heat-resistant layers may be selected from the group essentially comprising high density polyethylene, linear low density polyethylene, polypropylene and polyester.
- the packaging laminate according to the present invention may be supplemented with at least one further layer of a material possessing superior tightness properties vis-a-vis gases, in particular oxygen gas.
- a material possessing superior tightness properties may be so-called barrier polymers, such as, for example, ethylene vinyl alcohol copolymer and polyamide.
- barrier polymers such as, for example, ethylene vinyl alcohol copolymer and polyamide.
- this layer consists of an aluminium foil, Alifoil, which renders the packaging laminate thermosealable by so-called induction thermosealing which is a both rapid and efficient sealing technology.
- thermosealing is, for purposes of extending its shelf-life, to be subjected to a heat treatment under pressure with steam as heat medium in a retort.
- Fig. 1 is a schematic cross section of a packaging laminate according to one embodiment of the present invention.
- Fig. 2 schematically illustrates a method of producing the illustrated packaging laminate according to Fig. 1;
- Fig. 3 is a perspective view of a packaging container produced by fold forming and thermosealing of a packaging laminate according to the present invention.
- Fig. 1 thus schematically illustrates a cross section of a packaging laminate according to a first embodiment of the present invention.
- the packaging laminate 10 has a layer 11 of paper or paperboard and outer, liquid- tight, heat-resistant layers 12 and 13, respectively, of plastic on both sides of the paper or paperboard layer 11. Between the paper or paperboard layer 11 and one of the two outer, liquid-tight plastic layers 13, the packaging laminate 10 moreover has a layer 14 of a material possessing tightness properties vis-a-vis gases, in particular oxygen gas, which is laminated to the paper or paperboard layer 11 by the intermediary of a lamination layer 15.
- the paper or paperboard layer 11 has, on its one side, a printable coating 16 of pigment and adhesive or binder in contact with the surface of the subjacent paper or paperboard layer 11.
- the printable coating 16 also includes a substance capable of modifying the rheo logical properties of the coating 16. It will further be apparent from Fig. 1 that the paper or paperboard layer 11 has, on its other side, a coating 17 of starch in contact with the paper or paperboard layer 11.
- pigment for the printable coating 16 are, as has been mentioned earlier, selected from the group essentially comprising layered silicate mineral, hydratised magnesium silicate, calcium carbonate, titanium dioxide and kaolin.
- Examples of usable binders or adhesives for the printable coating 16 are selected from the group essentially comprising styrene butadiene latex, methyl metacrylate butadiene latex, polyacrylate latex, styrene acryl latex, polyvinyl acetate, polyvinyl alcohol, polysaccharides, starch, protein and combinations thereof.
- Examples of usable substances capable of modifying the rheological properties of the printable coating 16 are selected from among the group essentially comprising protein, polysaccharides, carboxy methyl cellulose (CMC), hydroxy ethyl cellulose (HEC), alkali soluble acrylic polymer emulsion (ASE), hydro fobically modified alkali soluble acrylic polymer (HASE), polyurethane (PU), polyvinyl alcohol (PVOH) and starch.
- CMC carboxy methyl cellulose
- HEC hydroxy ethyl cellulose
- ASE alkali soluble acrylic polymer emulsion
- HASE hydro fobically modified alkali soluble acrylic polymer
- PU polyurethane
- PVOH polyvinyl alcohol
- At least 50 % of the pigment in the printable coating 16 is calcium carbonate, while both the adhesive or binder and the substance capable of modifying the rheological properties of the coating comprise an acrylic copolymer.
- the coating 17 of starch has, as was previously mentioned, a thickness or coating quantity of less than 10 g/m 2 , preferably less than 5 g/m 2 , such as for example 3 g/m 2 , while the printable coating 16 has a corresponding thickness or coating quantity of 15-30 g/m 2 , preferably 20 g/m 2 .
- the outer, liquid-tight, heat-resistant plastic layer 12 of the packaging material 10 should be transparent, so that the printed decorative artwork 18 is clearly visible on visual inspection of the decorated packaging laminate 10.
- Examples of usable transparent plastics for the outer, liquid-tight, heat- resistant layer 12 may be selected from the group essentially comprising high density polyethylene (HDPE), linear low density polyethylene (LLDPE), polypropylene (PP) and polyester (PET).
- HDPE high density polyethylene
- LLDPE linear low density polyethylene
- PP polypropylene
- PET polyester
- Usable plastics for the outer, liquid-tight, heat-resistant layer 13 may also be selected from among the same group as the plastics mentioned for the outer, liquid- tight, heat-resistant layer 12, i.e. from the group essentially comprising high density polyethylene (HDPE), linear low density polyethylene (LLDPE), polypropylene (PP) and polyester (PET).
- HDPE high density polyethylene
- LLDPE linear low density polyethylene
- PP polypropylene
- PET polyester
- the layer 14 examples of materials possessing gas tightness properties for the layer 14 may be so-called barrier polymers such as, for example, ethylene vinyl alcohol copolymer and polyamide.
- barrier polymers such as, for example, ethylene vinyl alcohol copolymer and polyamide.
- the layer 14 is an aluminium foil, Alifoil, which renders the packaging laminate 10 thermosealable by so-called induction thermosealing, which is a both rapid, simple and efficient sealing technology.
- the illustrated packaging laminate in Fig. 1 is produced using, for example, the method which is schematically illustrated in Fig. 2.
- a web 20 of paper whose both sides are coated with a surface coating of pigment and binder or adhesive as described in greater detail in connection with Figs. 1 and 2, is unwound from a magazine reel 21.
- the paper web 20 is led through a printing station at A where the paper web 20 is provided with the desired decorative artwork of printing ink which, by a suitable printing technology, is printed direct on the surface of one of the two above mentioned coatings of pigment and binder or adhesive.
- the paper web 20 thus provided with decorative artwork is led via bending rollers 22-25 to a lamination station B where an aluminium foil 26 is converged with and laminated to the non-decorated side of the paper web by means of a lamination layer 27 which is extruded between the web 20 and the foil 26 in connection with these together being led through the nip between two lamination rollers 28.
- the laminated paper web 20 is thereafter led further by the intermediary of an additional bending roller 29 to a coating station C where the web 20 is coated with outer, liquid-tight, heat-resistant coatings 30 and 31 which are extruded on both sides of the web 20 when the web 20 is led through the nip between two coating rollers 32. From the coating station C, the laminated paper web 20 is thereafter led further for rolling up onto a magazine reel 33 for further processing and use.
- packaging containers may be produced from the packaging laminate according to the present invention being of the type which, after filling and sealing, are to be subjected to a shelf-life-extending heat treatment in a retort with steam as the heat medium.
- a retortable packaging container is schematically illustrated in Fig. 3.
- the illustrated packaging container 300 is a substantially parallelepipedic package of the known packaging type which occurs on the market under the trade name Tetra Recart.
- the packaging container 300 is produced from a prefabricated, flat folded packaging blank of the packaging laminate in that the packaging blank is first raised to an open tubular container carton.
- the one end of the container carton is sealed by fold forming and thermosealing o the corresponding end panels of the container carton for the formation of a liquid-tight substantially planar bottom closure.
- the container carton thus provided with a bottom is filled with the relevant food, whereafter the other end of the filled container carton is sealed by a further fold forming and sealing operation of the corresponding end panels of the container carton for the formation of a liquid-tight, substantially planar top closure 301, as illustrated in Fig. 3.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wrappers (AREA)
- Laminated Bodies (AREA)
- Cartons (AREA)
- Packages (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014549389A JP2015507582A (en) | 2011-12-29 | 2012-11-29 | Packaging laminate for packaging containers and packaging containers formed from this packaging laminate |
CN201280058428.0A CN103958197A (en) | 2011-12-29 | 2012-11-29 | A packaging laminate for a packaging container, as well as a packaging container produced from the packaging laminate |
EP12797844.3A EP2797748A1 (en) | 2011-12-29 | 2012-11-29 | A packaging laminate for a packaging container, as well as a packaging container produced from the packaging laminate |
US14/353,706 US20140295031A1 (en) | 2011-12-29 | 2012-11-29 | Packaging laminate for a packaging container, as well as a packaging container produced from the packaging laminate |
RU2014131284A RU2014131284A (en) | 2011-12-29 | 2012-11-29 | PACKAGING MULTILAYER MATERIAL FOR THE PACKAGING CONTAINER AND PACKAGING CONTAINER MADE FROM THE PACKING MULTI-LAYERED MATERIAL |
CA2851342A CA2851342A1 (en) | 2011-12-29 | 2012-11-29 | A packaging laminate for a packaging container, as well as a packaging container produced from the packaging laminate |
BR112014012905A BR112014012905A2 (en) | 2011-12-29 | 2012-11-29 | laminate and packaging container |
MX2014007781A MX2014007781A (en) | 2011-12-29 | 2012-11-29 | A packaging laminate for a packaging container, as well as a packaging container produced from the packaging laminate. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE1151289 | 2011-12-29 | ||
SE1151289-4 | 2011-12-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013098026A1 true WO2013098026A1 (en) | 2013-07-04 |
Family
ID=47297216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2012/073903 WO2013098026A1 (en) | 2011-12-29 | 2012-11-29 | A packaging laminate for a packaging container, as well as a packaging container produced from the packaging laminate |
Country Status (10)
Country | Link |
---|---|
US (1) | US20140295031A1 (en) |
EP (1) | EP2797748A1 (en) |
JP (1) | JP2015507582A (en) |
CN (1) | CN103958197A (en) |
BR (1) | BR112014012905A2 (en) |
CA (1) | CA2851342A1 (en) |
CL (1) | CL2014001708A1 (en) |
MX (1) | MX2014007781A (en) |
RU (1) | RU2014131284A (en) |
WO (1) | WO2013098026A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016124898A (en) * | 2014-12-26 | 2016-07-11 | 共同印刷株式会社 | Oil-resistant water-absorbing composition, and oil-resistant water-absorbing packaging material |
US10022944B2 (en) | 2014-03-17 | 2018-07-17 | Tetra Laval Holdings & Finance S.A. | Printed packaging laminate, method for manufacturing of the packaging laminate and packaging container |
WO2020152635A1 (en) * | 2019-01-25 | 2020-07-30 | Stora Enso Oyj | Heat-sealable paperboard |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR112018010662B1 (en) * | 2015-11-27 | 2022-05-17 | Tetra Laval Holdings & Finance S.A. | Laminated wrapping material, wrapping container, and method for making a laminate wrapping material |
WO2017093125A1 (en) * | 2015-12-02 | 2017-06-08 | Tetra Laval Holdings & Finance S.A. | Laminated packaging material, packaging containers manufactured therefrom and a method for manufacturing the laminate material |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010069451A1 (en) * | 2008-12-17 | 2010-06-24 | Tetra Laval Holdings & Finance Sa | Packaging laminate, method for manufacturing of the packaging laminate and packaging container produced there from |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4595611A (en) * | 1985-06-26 | 1986-06-17 | International Paper Company | Ink-printed ovenable food containers |
SE509663C2 (en) * | 1993-04-22 | 1999-02-22 | Tetra Laval Holdings & Finance | Use of a Packaging Laminate for the Preparation of a Packaging Container with Good Fat Resistance Properties |
EP1155817B1 (en) * | 1999-12-22 | 2013-08-14 | Tetra Laval Holdings & Finance S.A. | Method for preparing laminate for packaging material and laminate for packaging material |
SE529732C2 (en) * | 2006-03-21 | 2007-11-06 | Tetra Laval Holdings & Finance | Ways of packaging and, for the sake of sustainability, heat treating a food |
-
2012
- 2012-11-29 CA CA2851342A patent/CA2851342A1/en not_active Abandoned
- 2012-11-29 RU RU2014131284A patent/RU2014131284A/en unknown
- 2012-11-29 US US14/353,706 patent/US20140295031A1/en not_active Abandoned
- 2012-11-29 BR BR112014012905A patent/BR112014012905A2/en not_active Application Discontinuation
- 2012-11-29 JP JP2014549389A patent/JP2015507582A/en active Pending
- 2012-11-29 EP EP12797844.3A patent/EP2797748A1/en not_active Withdrawn
- 2012-11-29 MX MX2014007781A patent/MX2014007781A/en not_active Application Discontinuation
- 2012-11-29 WO PCT/EP2012/073903 patent/WO2013098026A1/en active Application Filing
- 2012-11-29 CN CN201280058428.0A patent/CN103958197A/en active Pending
-
2014
- 2014-06-24 CL CL2014001708A patent/CL2014001708A1/en unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010069451A1 (en) * | 2008-12-17 | 2010-06-24 | Tetra Laval Holdings & Finance Sa | Packaging laminate, method for manufacturing of the packaging laminate and packaging container produced there from |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10022944B2 (en) | 2014-03-17 | 2018-07-17 | Tetra Laval Holdings & Finance S.A. | Printed packaging laminate, method for manufacturing of the packaging laminate and packaging container |
JP2016124898A (en) * | 2014-12-26 | 2016-07-11 | 共同印刷株式会社 | Oil-resistant water-absorbing composition, and oil-resistant water-absorbing packaging material |
WO2020152635A1 (en) * | 2019-01-25 | 2020-07-30 | Stora Enso Oyj | Heat-sealable paperboard |
CN113330160A (en) * | 2019-01-25 | 2021-08-31 | 斯道拉恩索公司 | Heat sealable paperboard |
Also Published As
Publication number | Publication date |
---|---|
RU2014131284A (en) | 2016-02-20 |
CN103958197A (en) | 2014-07-30 |
BR112014012905A2 (en) | 2017-06-13 |
JP2015507582A (en) | 2015-03-12 |
CA2851342A1 (en) | 2013-04-07 |
US20140295031A1 (en) | 2014-10-02 |
EP2797748A1 (en) | 2014-11-05 |
CL2014001708A1 (en) | 2014-11-03 |
MX2014007781A (en) | 2014-09-15 |
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