Patent ID: 6916403
Filing Date: 2005-07-12
Classification: B31F,B32B,D21H,Y10T

Abstract:
1. A sheet comprising at least a first tissue paper ply and a second tissue paper ply, each ply having a specific surface weight of between 10 and 40 g/m 2 and each ply having an embossment pattern and being joined to each other in such a way that protrusions defining the embossment pattern are directed inward in the sheet and subtend cavities therebetween, wherein the first ply comprises first frustoconical protrusions having a top area of between 0.3 and 4 mm 2 , the second ply comprises second frustoconical protrusions configured to face the first protrusions in a way that said first protrusions are precluded from insertion between the second protrusions; and wherein the first protrusions on the first ply are larger than the second protrusions on the second ply and wherein the second ply has only the second protrusions, each of the first protrusions and the second protrusions having at least one of a circular base and an oval base.