Tetra Laval Holdings & Finance S.a.

Ion Postoaca

Nils Toft

Åke Persson

Magnus Just

Krister Uvnäs

Andreas Hessmark

Sven Keiter

Fredrik Persson

Francesco Staffetti

Guangju Zuo

A packaging laminate includes a core layer having at least one through-hole which on one side is covered by a barrier film and an outer layer of a polymeric material, wherein said outer polymeric layer and said barrier film are laminated to each other in a manner such that said polymeric layer and said barrier film are separated from each other along parallel, visually detectable air-filled channels formed by these two layers within the area of said at least one through-hole.

Packaging laminate

A laminating roller for laminating a sheet of a packaging laminate comprises at least one groove extending along the periphery of the roller and forming a border between two circumferential portions, wherein each of the two circumferential portions are extending continuously around the surface area of the roller. The laminating roller can also be used in a method for providing a packaging laminate.

Laminating roller, a method for providing a packaging laminate, and a packaging laminate

A packaging laminate comprising a core layer of paper or carton with a through-going hole, a layer of thermoplastics applied onto one outer side of the core layer, an aluminium foil applied onto the other, inner, side of the core layer and bonded to the core layer by means of an intermediate layer of thermoplastics, the two layers of thermoplastics being sealed to each other within the region of the hole to form a membrane of aluminium foil and thermoplastics, and a first adhesive part-layer applied onto the inner side of the aluminium foil, a second intermediate part-layer of low density polyethylene applied adjacent to the first adhesive part-layer, and a third innermost part-layer comprising in the majority a metallocene polyethylene. The packaging laminate has improved sealability properties and provides improved or maintained package integrity and openability to a packaging container manufactured from the laminate, having an opening arrangement, which at opening removes the membrane of laminated layers of aluminium foil and thermoplastics from the region of the hole in the core layer.

Packaging laminate, method for its manufacturing and packaging container manufactured from the packaging laminate

Method in connection with the continuous joining of a first layer () of a first material and a second layer () of a second material, to produce a packaging laminate () comprising said first and second layers. According to the invention, a free surface of said first layer () and/or a free surface of said second layer () is subjected both to plasma treatment () and to flame treatment (), where after said free surfaces are joined together (). The invention relates also to a packaging laminate thus produced and to a packaging container manufactured from such a packaging laminate.

Method in production of packaging laminate

A method and device for providing a substrate () with a coating layer () of a polymeric material, comprising the steps: a) a pulverous, polymeric material () is suspended () in a fluid (), b) the fluid () is pressurised (), c) the pressurised suspension is ejected () onto the substrate () to form the coating layer (), d) the polymeric material is, during any one of steps a)-c), heated () to a temperature above its softening temperature.

Method and device for providing a substrate with a coating layer of a polymeric material

The invention relates to a laminated packaging material comprising a core layer of paper or paperboard and a gas barrier layer of a polyarmide blend including a condensation polymer of metaxylene diamine and adipic acid (Nylon-MXD6) and a second crystalline or semicrystalline polyamide, applied on one side of the core layer by means of co-extrusion coating. The invention also relates to a method of producing the laminated packaging material and to a packaging container which is produced from the laminated packaging material.

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Bjärred, Sweden

Ion Postoaca