Method of producing disposable absorbent articles exhibiting...

A - Human Necessities – 61 – F

Patent

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A61F 13/15 (2006.01)

Patent

CA 2518380

A method of making, e.g., mass-producing, disposable absorbent articles, e.g., diapers, exhibiting consistent fluid absorption characteristics and the articles produced thereby. The method comprises providing a top-sheet and a fluid absorbent core, e.g., pulp with SAP and a binder. A composite fluid acquisition system is provided between the top sheet and the core and comprises a first fluid acquisition layer, e.g., a three-dimensional apertured film, and a fluid absorbency enhancing layer of an air-laid substrate. The first fluid acquisition layer is located under the top-sheet and over the fluid absorbency enhancing layer at the fluid intake zone. A second fluid acquisition layer comprises a fibrous, fluid pervious material may be provided located under the first fluid acquisition layer at the fluid intake zone.

L'invention concerne un procédé pour fabriquer, par exemple produire en masse, des articles absorbants jetables, par exemple, des couches-culottes, présentant des caractéristiques d'absorption du liquide importantes, ainsi que l'article produit. Le procédé comprend une couche supérieure et une âme absorbant le liquide, par exemple une pâte contenant un polymère super absorbant et un liant. L'invention concerne un système d'acquisition de liquide composite situé entre la couche supérieure et l'âme et comprenant une première couche d'acquisition du liquide, par exemple un film ouvert tridimensionnel, et une couche améliorant l'absorption du liquide composée d'un substrat formé par voie aéraulique. La première couche d'acquisition du liquide est située sous la couche supérieure et sur la couche améliorant l'absorption sur la partie d'entrée du liquide. Une seconde couche d'acquisition du liquide comprend une matière fibreuse, perméable au liquide pouvant être disposée sous la première couche d'acquisition du liquide sur la zone d'entrée du liquide.

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