Performance Index For Absorbent Articles Having Improved Leakage Performance

February 17, 2009

Patented is an absorbent article comprising a topsheet, a backsheet, an absorbent core between the topsheet and the backsheet and an insult point. The absorbent core has a basis weight that is substantially equal to a basis weight of the insult point. The absorbent article has a three variable urine-only leakage performance index (PI3UL) of less than about 3.0. The PI3UL is determined in accordance with the following equation (1): PI3UL=0.046(Tc)−2.94(MS100)−0.772(AUL) (1) where Tc is the total capacity in grams, MS100 is the percent utilization of the core upon insult with 100 ml of 0.9 weight percent saline solution and AUL is the front pad absorbency under load of the absorbent article, expressed in grams of 0.9 weight percent saline solution absorbed per gram of pad material. The AUL has a value of about 23 grams of fluid/gram of material or more.

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