Layered absorbent structure with a zoned basis weight

Details Layered absorbent structure with a zoned basis weight Layered absorbent structure with a zoned basis weight

A - Human Necessities

61

F

A61F 13/15 (2006.01)

Patent

CA 2303872

A distinctive absorbent article includes an absorbent core having multiple absorbent layers, wherein the absorbent layers interact in such a manner which preferentially locates absorbed liquid in an appointed, high saturation wicking layer. The localization of the liquid within this wicking layer increases the potential of this layer to move liquid through capillary action due to the higher saturation level and increased amount of liquid available. In additional aspects, at least one primary layer region can have a non- uniform, selectively zoned basis weight distribution. Particular configurations of the at least one primary layer region can be constructed with a target area of the primary layer region having a basis weight which is less than a basis weight of another non-target portion of the primary layer region.

Un article absorbant caractéristique comporte une partie centrale absorbante à couches absorbantes multiples, les couches absorbantes interagissant de manière à transférer de préférence le liquide absorbé dans une couche d'imbibition haute saturation désignée. Le fait que le liquide se trouve dans cette couche d'imbibition permet d'accroître le potentiel de cette couche à déplacer le liquide par capillarité en raison du taux de saturation élevé et d'une quantité croissante de liquide disponible. Dans des aspects supplémentaires, au moins une zone de couche primaire peut comporter une répartition non uniforme de masses surfaciques zonée de manière sélective. Des configurations particulières de la zone de couche primaire peuvent être formées, dans lesquelles une zone cible de la zone de couche primaire comporte une masse surfacique inférieure à celle d'une autre partie non-cible de la zone de couche primaire.

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