A multi-ply absorbent sheet of cellulosic fiber with continuous outer surfaces is provided an absorbent core between the outer surfaces. The absorbent core includes a non-woven fiber network having: (i) a plurality of pileated fiber enriched of relatively high local basis weight interconnected by way...http://www.google.de/patents/US7662257?utm_source=gb-gplus-sharePatent US7662257 - Multi-ply paper towel with absorbent core