Absorbent article having a thin, efficient absorbent core

Details Absorbent article having a thin, efficient absorbent core Absorbent article having a thin, efficient absorbent core

A - Human Necessities

61

F

A61F 13/15 (2006.01)

Patent

CA 2276368

Disclosed is an absorbent article (10) having an absorbent core (16). The absorbent core (16) includes a primary absorbent member (18) and a secondary absorbent member (20). The primary absorbent member (18) has a fluid distribution rate, expressed as the ratio of a stain area in the primary absorbent member (18) to a stain area in the secondary absorbent member (20), along an X-Y direction greater than about 1.8 times faster than the secondary absorbent member (20). The fluid distribution rate is expressed as a ratio of a stain area in the primary absorbent member (18) to a stain area in the secondary absorbent member (20) five minutes after a given volume of test fluid insults the absorbent core. The secondary absorbent member (20) has a substantial portion thereof composed of a non-absorbent polymeric composition. The secondary absorbent member (20) is superposed over a portion of the primary absorbent member (18). In a preferred embodiment, the secondary absorbent member (20) has an aperture (60) or orifice having an open surface area greater than about 20 % of the secondary absorbent member surface area.

Article absorbant (10) à partie centrale absorbante (16) comprenant des premier (18) et second (20) éléments absorbants. Le premier élément (18) a un taux de répartition des fluides exprimé comme suit: rapport entre une zone maculée du premier élément (18) et une zone maculée du second élément (20), le long d'une direction X-Y, ledit taux étant environ 1,8 fois supérieur à la vitesse de répartition dans le second élément (20). Le taux de répartition des fluides est exprimé entre lesdites zones cinq minutes après la maculation de la partie centrale par un fluide d'essai. Une partie substantielle du second élément (20) est à base d'une composition polymérique non absorbante. Ce second élément (20) se superpose à une partie du premier élément (18). Dans un mode de réalisation préféré, le second élément (20) a une ouverture (60) ou un orifice dont la surface ouverte a une dimension supérieure d'environ 20 % à celle de la même zone de surface dans le second élément.

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