Reticulated absorbent composite

A - Human Necessities – 61 – F

Patent

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Details

A61F 13/535 (2006.01) A61F 13/15 (2006.01) A61F 13/539 (2006.01)

Patent

CA 2406501

An absorbent composite having a reticulated core and a fibrous stratum is disclosed. The core and stratum are integrally formed, and the stratum is coextensive with a surface of the core. In one embodiment, the composite includes strata on opposing surfaces of the core. The core includes a fibrous matrix and absorbent material. The fibrous matrix defines voids and passages between the voids, which are distributed throughout the composite. Absorbent material is located within some of the voids. On wetting, absorbent material located in these voids is expandable into the void. Methods for forming the composite and absorbent articles that include the composite are also disclosed.

La présente invention concerne un composite réticulé absorbant comportant une couche centrale réticulée et une couche intermédiaire fibreuse. La couche centrale et la couche intermédiaire sont formés solidaires et la couche intermédiaire est accolée à une surface de la couche centrale. Dans un premier mode de réalisation, le composite comprend des couches intermédiaires sur les surfaces opposées de la couche centrale. La couche centrale comprend une matrice fibreuse et une matière absorbante. La matrice fibreuse définit des vides et des passages entre les vides, lesquels sont répartis dans tout le composite. Une matière absorbante est située à l'intérieur de certains des vides. Lors d'une humidification, la matière absorbante située dans ces vides s'étend à l'intérieur du vide. L'invention concerne également des procédés de formation du composite et d'articles absorbants contenant ce composite.

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