Absorbent core having two or more types of superabsorbent

Details Absorbent core having two or more types of superabsorbent Absorbent core having two or more types of superabsorbent

A - Human Necessities

61

F

A61F 13/15 (2006.01)

Patent

CA 2579708

An absorbent core for use in an absorbent article, including a central fibrous layer having synthetic fibers, and two or more types of superabsorbent material (SAP). The SAP is contained primarily in upper and/or lower layers of the absorbent core. The upper and/or lower layer may be a substantially continuous layer of SAP, or may include a free-form of SAP. The upper an d/or lower layers may have a blend of two or more types of SAP, or may have my a virgin, unblended SAP. Each of the types of SAP preferably has a differen absorbent property (such as high AUL, or fast absorption rate), so that the resultant absorbent core benefits from having multiple absorbent properti s provided by the SAP's. An absorbent article including the absorbent core, and a method of providing an absorbent article including the absorbent core are also described.

L'invention concerne un coeur absorbant destiné à un article absorbant et constitué d'une couche fibreuse centrale comprenant des fibres synthétiques et au moins deux types de matériau superabsorbant (SAP). Le matériau SAP se trouve principalement dans les couches supérieures et/ou inférieures du coeur absorbant. Les couches supérieures et/ou inférieures peuvent être des couches sensiblement continues de SAP ou peuvent comprendre une forme libre de matériau SAP. Les couches supérieures et/ou inférieures peuvent soit comprendre un mélange d'au moins deux types de matériaux SAP, soit uniquement un matériau SAP vierge non mélangé. Chacun des types de matériau SAP comprend, de préférence, une propriété absorbante différente (telle qu'une absorption sous charge élevée ou un taux d'absorption rapide), de sorte que le coeur absorbant ainsi obtenu bénéficie de multiples propriétés absorbantes conférées par les matériaux SAP. L'invention concerne également un article absorbant comprenant ledit coeur absorbant et un procédé permettant d'obtenir un article absorbant comprenant ledit coeur absorbant.

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