Patent ID: 7147629

Claim:
A disposable diaper having a body facing surface and a garment facing surface, said disposable diaper comprising: a front waist region; a rear waist region; a crotch region extending between said front and rear waist regions; and an absorbent core provided between said body facing surface and said garment facing surface; said absorbent core comprising hydrophilic fibers of 30–70 wt % and super-absorbent polymer particles of 70–30 wt %, said super-absorbent polymer particles comprising first polymer particles having a relatively long liquid-absorbing duration and second polymer particles having a relatively short liquid-absorbing duration, wherein substantially all said first polymer particles are contained within a single first zone in a middle zone of said core as viewed in a transverse direction as well as in a thickness direction of said core and a mixture of said hydrophilic fibers and said second polymer particles defines a second surround zone that lies above, below and laterally outside said first zone.