Patent ID: 7176149
Filing Date: 2007-02-13
Classification: A61F,B32B,Y10T

Abstract:
1. A unitary absorbent structure with an x-directional profile comprising: a) an upper ply having an upper fluid receiving surface and a lower surface and comprising: b) a lower ply in fluid communication with the upper ply, the lower ply having an upper surface and a lower surface, wherein the lower ply comprises at least one stratum including natural fibers, superabsorbent polymer particles, and a binder, wherein the lower surface of the upper ply has a surface area less than about 80% of the upper surface area of the lower ply, and wherein the structure has a wet integrity greater than about 4.0 mN/gsm, softness greater than 8.0/J, pliability greater than about 70/N, and providing a substantially dry liquid-accepting surface after receiving a quantity of liquid; and wherein the superabsorbent polymer particles are dispersed in discrete zones within the structure separated by lanes of fibers bonded with a binder thereby facilitating flow of liquid in the Z-direction and allowing for easier flow and wicking of the fluid along the X-direction; and optionally areas with lower amounts of superabsorbent polymer particles are additionally densified along the length of the absorbent structure.