Packaging laminate for a packaging container, as well as a packaging container produced from the packaging laminate

摘要

A packaging laminate for a packaging container, which includes a paper or paperboard layer 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 the outer plastic layer, the packaging laminate has at least one additional layer of a material possessing tightness properties vis-à-vis gases. In order to improve the preconditions for being able to provide the packaging laminate with decorative artwork of printing ink with good print quality, the paper or paperboard layer has, on both sides, a coating of pigment, adhesive and a substance capable of modifying the rheological properties of the coatings.

主权项

1. A packaging laminate for a packaging container which, after filling and sealing by thermosealing, is to be subjected to a shelf-life-extending heat treatment in a retort with steam as heat medium, the packaging laminate including a layer of paper or paperboard whose one surface has a printable coating of pigment and adhesive or binder in contact with the paper or paperboard layer, wherein the other side of the paper or paperboard layer has a coating of pigment and adhesive of the same type as the printable coating in contact with the paper or paperboard layer.