Embossing roll for producing fibrous products with a rastered embossing, device employing such embossing roll and arranging embossing protrusions on such embossing roll

Abstract

An embossing roll for producing fibrous products especially tissue paper products, non-woven products or a hybrid thereof, and preferably hygiene and cleaning products, with an embossing surface is suitable to run against an anvil roll, the embossing surface includes protrusions starting from a base circumferential surface of the embossing roll; the embossing protrusions form a pattern with a base surface area of at least 3 cm×3 cm; within each pattern there is a high number of embossing protrusions which are sized and/or positioned such as to represent a rastered motive element covering the base surface area; at least some of the embossing protrusions are dimensioned and/or positioned such that consecutive minimum distances between opposed side surfaces of pairs of embossing protrusions arranged in sequence vary gradually. A device employing the embossing roll and a method for arranging embossing protrusions on a circumferential surface of the embossing roll are described.

Dependencies are inferred from the claim text.