Patent ID: 7413630

Claim:
A multi-ply sheet comprising a first ply and a second ply, each ply being made of tissue paper and exhibiting a specific surface weight between 12 and 35 g/m 2 , the first ply comprising a first embossing pattern in first zones including first protrusions projecting from an inner surface of the first ply and having corresponding alveoles on an opposite side, said first protrusions having tops of which at least more than one is connected to an opposite inner surface of the second ply, and wherein said first ply further comprises a second embossing pattern including second protrusions projecting from the inner surface of the first ply, said second protrusions having a height (H 2 ) which is less than a height (H 1 ) of said first protrusions and a density which is greater than that of said first protrusions, and at least more than one top of said second protrusions being situated in a plane also containing tops of the first protrusions and being connected to an inside surface of the second ply.