VERPACKUNGSLAMINAT, VERFAHREN ZU SEINER HERSTELLUNG UND AUS DEM VERPACKUNGSLAMINAT HERGESTELLTER VERPACKUNGSBEHÄLTER

摘要

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.