Absorption cores with improved liquid treatment properties

摘要

An absorbent core comprises, in sequence through its thickness, a first structure comprising an upper layer comprising a first fibrous material (3) having a wet compressibility of at least 5 cm3g-1 and a drip capacity of at least 10g g-1, the structure also comprising a first superabsorbent material (5) having a substantially non-decreasing dynamic swelling rate and a second structure comprising a second fibrous material (6) and a second superabsorbent material (7) having a dynamic swelling rate of at least 0.2g g-1 s-1 and an absorption against pressure of at least 15g g-1 at 50g cm-2 (0.7psi), wherein the dynamic swelling rate of the first superabsorbent material is not greater than 2/3 of the dynamic swelling rate of the second superabsorbent material. The absorbent core allows improved fluid handling of body discharges throughout the core and in the subsequent efficient storage of these discharges. IMAGE