Sanitary napkins having flaps and stress relief means

A - Human Necessities – 61 – F

Patent

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Details

A61F 13/476 (2006.01)

Patent

CA 2498482

An absorbent article, such as a sanitary napkin, having flaps with a combination of first and second stress relief means for relieving the stresses that develop in the flaps when the flaps are folded down along the edges of the wearer's panties in the crotch. The flaps extend laterally outward from the main body portion of the article. The flaps are associated with the main body portion at a juncture along the longitudinal edges of the main body portion. The flaps have a first stress relief means located remote from the juncture. The first stress relief means can be either a slit or a notch. The flaps have at least one second stress relief means contiguous with the first stress relief means. The second stress relief means is a zone of differential extensibility. The zone of differential extensibility is capable of greater extension in a generally longitudinal direction than other portions of the absorbent article. The zone of differential extensibility is made of corrugated or ring-rolled portions of the absorbent article.

La présente invention concerne un article absorbant tel qu'une serviette hygiénique, muni de rabats combinés à de premiers et à de seconds moyens de réduction des tensions destinés à réduire les tensions qui apparaissent dans les rabats lorsque ces derniers sont repliés le long des bords de la culotte de l'utilisatrice, dans la partie de l'entrejambe. Les rabats s'étendent latéralement vers l'extérieur depuis la partie corps principal de l'article.Les rabats sont associés à la partie corps principal en une jonction le long des bords longitudinaux de la partie corps principal. Les rabats comprennent de premiers moyens de réduction des tensions éloignés de la jonction. Les premiers moyens de réduction des tensions peuvent être constitués par une fente ou une échancrure. Les rabats comprennent au moins de seconds moyens de réduction des tensions adjacents aux premiers moyens de réduction des tensions. Les seconds moyens de réduction des tensions sont constitués par une zone d'extensibilité différentielle. La zone d'extensibilité différentielle est capable d'une plus grande extension dans une direction généralement longitudinale que les autres parties de l'article absorbant. La zone d'extensibilité différentielle est composée de parties cannelées ou enroulées en anneaux de l'article absorbant.

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