Patent ID: 6420626
Filing Date: 2002-07-16
Classification: A61F,Y10T

Abstract:
A unitary absorbent structure comprising:a. a fluid acquisition stratum having a basis weight of from 20 to 120 gsm comprising synthetic fibers and a binder; b. a fluid distribution stratum having a basis weight of from 20 to 200 gsm comprising cellulose fibers and a binder; and c. a fluid storage stratum between the acquisition stratum and the distribution stratum, having a basis weight of from 60 to 400 gsm, wherein the acquisition stratum is coextensively contiguous with and in direct fluid communication with the storage stratum, the storage stratum is coextensively contiguous with and in direct fluid communication with the distribution stratum, the acquisition stratum and the distribution stratum are in indirect fluid communication, and the average pore size of each stratum decreases in a gradient in the direction from the acquisition stratum to the distribution stratum.