Apertured laminate web

B - Operations – Transporting – 32 – B

Patent

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Details

B32B 33/00 (2006.01) A61F 13/15 (2006.01) B29C 65/02 (2006.01) B29C 65/74 (2006.01) B32B 5/22 (2006.01) B32B 38/04 (2006.01)

Patent

CA 2329808

An apertured laminate web which may be used as a topsheet on a disposable absorbent article, such as a diaper. The laminate web is formed of a liquid pervious first material and a liquid pervious second material attached to the first material. The first material has an effective open area of at least about 10 % and a plurality of apertures with an effective size of at least than 0.2 square millimeters. The second material has an effective open area of at least about 10 % and a plurality of apertures with an effective size of at least 0.2 square millimeters. The apertures of the second material are aligned with the apertures of the first material. The second material preferably has a hydrophilicity which is greater than the hydrophilicity of the first material.

La présente invention concerne un voile multicouche perforé pouvant être utilisé comme enveloppe extérieure sur un article absorbant à jeter, des couches notamment. Ce voile multicouche comprend une première matière perméable aux liquides et une seconde matière perméable aux liquides fixée sur la première matière. La première matière présente une surface d'ouverture effective d'au moins 10 % et une pluralité de perforations d'une superficie nominale effective d'au moins 0,2 cm?2¿. La seconde matière présente une surface d'ouverture effective d'au moins 10 % et une pluralité de perforations d'une superficie nominale effective d'au moins 0,2 cm?2¿. Les perforations de la seconde matière se trouvent dans l'axe des perforations de la première matière. L'hydrophilicité de la seconde matière est de préférence supérieure à celle de la première matière.

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