Container precursor, in particular for producing a dimensionally stable foodstuff container, having a sheetlike composite, a first and a second wall region

Abstract

The present invention refers to a container precursor, comprising a sheetlike composite; wherein the sheetlike composite comprises as a layer sequence in a direction from an outer surface of the sheetlike composite to an inner surface of the sheetlike composite a) an outer polymer layer, b) a colour application, c) a carrier layer, and d) a barrier layer; wherein the sheetlike composite forms a wall of the container precursor; wherein the wall a. at least partly surrounds an interior of the container precursor, and b. comprises a first wall region and a second wall region; wherein the first wall region partly comprises as a layer sequence from the interior outwards a first ply, a second ply, and a third ply, in each case of the sheetlike composite; wherein in the first wall region the first ply is bonded to the second ply and the second ply is bonded to the third ply; wherein the second wall region partly comprises as a layer sequence from the interior outwards the first ply, the second ply, and the third ply, in each case of the sheetlike composite; wherein in the second wall region the second ply is bonded to the third ply; wherein at least the carrier layer and the barrier layer extend into the first ply, the second ply, and the third ply; wherein in the first wall region: in the second ply a layer thickness of the carrier layer is less than in the first ply, or in the third ply, or in both; wherein in the second wall region: in the third ply a layer thickness of the carrier layer is more than in the first ply, or in the second ply, or in both. The invention further refers to a closed container, obtainable from the container precursor; and to a closed container having the above sheetlike composite, the first and the second wall region.

Dependencies are inferred from the claim text.