Unitary absorbent structure containing superabsorbent polymer

Details Unitary absorbent structure containing superabsorbent polymer Unitary absorbent structure containing superabsorbent polymer

A - Human Necessities

61

F

A61F 13/15 (2006.01) B32B 5/22 (2006.01) D04H 13/00 (2006.01)

Patent

CA 2334343

Disclosed is a unitary absorbent structure (10), including an upper fibrous layer (12) having a liquid acquisition zone (2) extending to one surface, and a liquid distribution zone (4) extending to the other surface. A lower fibrous liquid storage layer (14) is in liquid communication with the distribution zone surface of the upper layer. The storage layer includes SAP particles (18). A containment layer (8) surrounds the storage layer and extends to the outer edges of the structure. The containment layer contains the fibers (6), and SAP particles of the storage layer against the distribution zone surface of the upper layer.

L'invention concerne une structure unitaire absorbante (10), laquelle comporte une couche fibreuse supérieure (12) ayant une zone d'acquisition de liquide (2) qui s'étend vers une surface, et une zone de distribution de liquide (4) qui s'étend vers l'autre surface. Une couche fibreuse inférieure de stockage de liquide (14) est en communication avec la surface de la zone de distribution de la couche supérieure, aux fins d'échange de liquide. La couche de stockage renferme des particules polymères ultra-absorbantes (18). Une couche de retenue (8) entoure la couche de stockage, s'étendant vers les bords extérieurs de la structure. La couche de retenue retient les fibres (6) et les particules polymères ultra-absorbantes de la couche de stockage contre la surface de la zone de distribution de la couche supérieure.

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