Tetra Laval Holdings & Finance S.a.

Tetra Level Holdings & Finance S.a.

Mikael Berlin

Mats Bentmar

Ib Leth

Katarina Flemmer-Karlsson

Katarina Flemmer

Nils Toft

Lars Bergholtz

Hans Johansson

Peter Öhman

Katarina Jonasson

Alain Collaud

Ladislav Hurdalek

Joakim Balogh

Thomas Schuman

Tommy Magnusson

Teresa Ewing

Lars Bertilsson

Matts Bentmar

Rolf Malmgren

Anna Nilsson

Bo Lundgren

Ulf Lindqvist

Hans O Johansson

Stefano Busoli

The present invention relates to a method for manufacturing of a laminated cellulose-based liquid or semi-liquid food packaging material, wherein the laminated packaging material has a bulk material layer, wherein a further sheet is laminated to the bulk material layer by an aqueous adhesive composition. The invention further relates the laminated packaging materials obtained by the method and to a packaging container for liquid food packaging, comprising the laminated packaging material or being made from the laminated packaging material obtained by the method.

Method for manufacturing a laminated packaging material, the laminated packaging material and packaging containers made therefrom

A laminated packaging material for food packaging, comprises a core layer of paper or paperboard, which on a first side intended to be directed towards the outside of a packaging container, has, in the following order, a dry pre-coating for receiving a printed d&#xe9;cor of an aqueous, pigment-based, ink-jet printing ink, a pigment-based ink-jet printed ink d&#xe9;cor layer and further laminated onto the printed d&#xe9;cor layer, a protective outermost layer of a thermoplastic polymer. Also disclosed is a method for manufacturing of the packaging laminate and to a packaging container that is made from the laminated packaging material as well as to a pre-coating composition for use in the laminated packaging material and in the manufacturing thereof.

Printed packaging laminate, method for manufacturing of the packaging laminate and packaging container

A non-foil packaging laminate for liquid food packaging comprises a core layer of paper or paperboard, outermost liquid tight, heat sealable layers of polyolefin and, applied onto the inner side of the layer of paper or paperboard, an oxygen gas barrier layer formed by liquid film coating of a liquid gas barrier composition and subsequent drying, the liquid composition containing a polymer binder dispersed or dissolved in a liquid medium. The laminate further comprises a layer of a polyolefin-based matrix polymer with inorganic filler particles distributed therein and inorganic particles dispersed also in the gas barrier layer from the liquid gas barrier composition. Also disclosed is a method for manufacturing the packaging laminate and a packaging container made from the packaging laminate.

Packaging laminate, method for manufacturing of the packaging laminate and packaging container produced therefrom

Arrangement for manufacturing a web-shaped packaging laminate, comprising an extruder arranged so as to extrude a film of polymer material down into a nip between a cooling roll and a counter-roll, and also means of introducing at least one other layer of the packaging laminate into the said nip for joining the film together with the layer. According to the invention, the arrangement comprises an arrangement for covering the cooling roll with a surface layer of a water-based composition comprising a dry matter content. The invention also relates to the method for manufacturing the web-shaped packaging laminate, in which the composition is transferred as a thin layer to the film of polymer material in the nip, while the film of polymer material is still hot.

Method and arrangement for manufacturing a web-shaped packaging laminate

A laminated packaging material () comprising a core layer () and a barrier layer () formed from a liqueform composition comprising a dispersion or solution of a polymer, starch or starch derivative on one side of the core layer, the barrier layer also including particles of amorphous SiO. According to the invention, said particles of amorphous SiOin colloidal particle size in said barrier layer are present in a content of above 40 weight % but below 80 weight %. The invention also relates to a packaging container which has been produced from the packaging material, as well as a method of producing the packaging material.

Laminated packaging material, a method of producing the same, as well as a packaging container produced from the packaging material

The invention relates to a method of producing a laminated packaging material () including a core layer () of paper or paperboard and a barrier layer () applied on one side of the core layer. The invention also relates to a laminated packaging material () produced according to the method, as well as a packaging container () which is produced from the laminated packaging material ().

Method of producing a laminated packaging material

A multi-layer packaging laminate is produced by simultaneously applying at least two wet coating layers to a substrate web () in a slide coater or curtain coater having a slide block () over which laminar flow streams of coating liquid flow to reach the substrate web. At least one layer is less than 20 &#x3bc;m thick (wet) and at least one layer has oxygen barrier or scavenger properties.

Method of manufacturing a multi-layer packaging laminate and packaging laminate obtained by the method

The invention relates to a method of producing a laminated packaging material ( ) including a core layer ( ) of paper or paperboard and a barrier layer ( ) applied on one side of the core layer. The invention also relates to a laminated packaging material ( ) produced according to the method, as well as a packaging container ( ) which is produced from the laminated packaging material ( ).

The present invention provides a method for producing a packaging laminate having excellent gas barrier properties. The method involves applying a solution or dispersion of starch or starch derivative to a surface of a substrate of paper or paperboard, and applying a layer of plastic to said starch or starch derivative so as to modify the properties of same such that the starch or starch derivative provides a gas barrier property.

Starch based gas barrier laminate

The invention relates to a packaging laminate having one or more gas barrier layers of starch or starch derivative providing an oxygen gas barrier property of 50, preferably 30 cm3/m2 at 24 h, 1 atm (23&deg; C., 50% RH) or better, said gas barrier layer having a dry coating weight no more than 7 g/m2. The invention also relates to a method for producing such a packaging laminate and to packaging containers manufactured from the packaging laminate.

Gas barrier packaging laminate method for production thereof and packaging containers

A laminated packaging material for liquid-tight, dimensionally stable packages has superior gas-barrier properties, particularly oxygen barrier properties. The laminated packaging material includes a core layer and a barrier layer juxtaposed to the core layer. The barrier layer is formed from a polyvinyl alcohol, a polysaccharide and a cross-linking agent, the polysaccharide being chitosan and the cross-linking agent being a dialdehyde compound. A method for making the laminated packaging material is also disclosed.

Laminated packaging material, a method of producing the same, as well as packaging containers

The disclosure relates to printing ink-decorated packaging laminate for aseptic packages of the type which is produced in that a web of paper which has an outer coating of plastic is, for the purpose of sterilization, led through a bath of hydrogen peroxide prior to the reforming of the web into aseptic packages. The packaging laminate has a d&eacute;cor of water-based printing ink which is applied in the desired pattern on the outside of the outer plastic coating. For the purpose of protecting the water-based printing ink d&eacute;cor against attack from hydrogen peroxide in connection with the sterilization process, the packaging laminate is provided with an outer layer of water-based polyethylene or water-based acid-modified polyethylene which, by means of so-called dispersion coating, is applied on the printing ink-decorated outer plastic coating after, or in connection with the application of said printing ink d&eacute;cor.

Printing ink-decorated packaging material for aseptic packages, and a method of producing the same

Packaging laminate including a moisture-sensitive gas barrier layer, a

Laminated packaging material, a method of producing the material, and a

A packaging laminate comprising a rigid, but foldable paper or paperboard layer which has, at least on its one side, an outer film or coating of a water-insoluble polysaccharide compound which imparts to the packaging laminate tightness properties against liquid and water vapor and good sealing properties. Preferably, the other side of the core layer also has an outer film or coating of said polysaccharide compound. The polysaccharide compound in the two outer films or coatings contains a first water-soluble polysaccharide of polyanionic character and a second water-soluble polysaccharide of polycationic character, these being chemically or otherwise bonded to one another to form the water-insoluble polysaccharide compound. One preferred such polysaccharide compound may, for example, consist of a chemical compound or a chemical complex of chitosan and agar.

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Lund, Sweden

Mikael Berlin