Sanitary articles with dual layer film topsheet having a...

A - Human Necessities – 61 – F

Patent

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Details

A61F 13/15 (2006.01) A61F 13/20 (2006.01)

Patent

CA 2225098

The present invention relates to absorbent articles particularly sanitary napkins having layered topsheets. In particular a first layer receiving the liquids to be absorbed comprises apertures of at least 1.4 mm2 area in a film within the longitudinal center of the film. A second film layer provides liquid transfer to an absorbent structure through apertures of less than 1.4 mm2 area. Additionally the second layer provides visual masking of absorbent liquids in the area of the large apertures of the first topsheet layer. The apertures in the first layer preferably are also only provided in the transverse center of the film. The distribution of the apertures leaves a certain longitudinal side edge and preferably transverse end edge of the topsheet free of the large apertures to improve comfort of the product during use.

L'invention concerne des articles absorbants, particulièrement des serviettes hygiéniques, munis de feuilles de couverture stratifiées. Plus précisément, une première couche qui reçoit le liquide devant être absorbé est munie d'une pellicule qui possède, le long de sa partie centrale longitudinale, des orifices d'au moins 1,4 mm?2¿ de surface. Une deuxième couche de pellicule est destinée au passage du liquide dans une structure absorbante à travers des orifices de moins de 1,4 mm?2¿ de surface. En outre, la deuxième couche rend invisible le liquide absorbé dans la zone munie des gros orifices de la première couche de la feuille de couverture. Les orifices de la première couche n'existent, de préférence, que dans la partie centrale transversale de la pellicule. La répartition des orifices permet de laisser un bord latéral longitudinal d'une certaine importance ainsi que, de préférence, un bord ayant une extrémité transversale de la pellicule supérieure exempte de gros orifices pour améliorer le confort du produit lors de son utilisation.

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