Roll Assembly for Producing Non-Destructively Embossed Barrier Paper for Air-Tight and Water-Vapour-Tight Sealing of Packages, and Corresponding Method

Abstract

The invention relates to a roll assembly for producing non-destructively embossed barrier paper for air-tight and water-vapor-tight sealing of cigarette packages, in particular for use as an inner liner, having: a first embossing roll; and a second embossing roll; wherein a nip is formed between the first embossing roll and the second embossing roll to feed through and emboss the barrier paper; wherein at least one of the embossing rolls has a plurality of embossing elements, the embossing elements having, on their upper face, an edge which runs around the embossing elements and has an edge radius of 1 μm to 1000 μm. The invention also relates to a method for producing non-destructively embossed barrier paper for air-tight and water vapor-tight sealing of cigarette packages, in particular for use as an inner liner.

Dependencies are inferred from the claim text.