The present invention relates to an apparatus for making an absorbent structure for an absorbent article, the apparatus comprising: a printing roll comprising a plurality of cavities in the outer surface of the printing roll, each cavity having cavity sides which are formed by the walls of the cavity within the outer surface of the printing roll and a cavity base, and each cavity has a volume within the outer surface of the printing roll defined by the cavity sides and the cavity base, and wherein the plurality of cavities comprises cavities having different volume.