A disposable body fluid absorbent article includes a liquid-absorbent core. The core is provided in the vicinity of opposite side edges extending in a longitudinal direction with depressed regions tapering from an upper surface toward a lower surface of the core. A density of the core components in the...http://www.google.ca/patents/US6867345?utm_source=gb-gplus-sharePatent US6867345 - Disposable body fluid absorbent article having longitudinal side groove
