The present invention relates to a multi-ply sheet including a first ply (12) and a second ply (14) each made of tissue paper and each exhibiting a specific surface weight between 12 and 35 g/m2, the first ply including a first embossing pattern which is imprinted in first zones (16) and which has first...http://www.google.fr/patents/US7413630?utm_source=gb-gplus-shareBrevet US7413630 - Multi-layer sheet of absorbent paper
