| 摘要 |
<p>The invention refers to a breathable backsheet (1) comprising a water vapour permeable first layer (2) and a water vapour permeable second layer (3) for an absorbent article (4), where the backsheet (1) is water vapour permeable in a Z-direction. The invention is characterised in that the backsheet (1) comprises a condensation zone (7) between the two layers (2, 3). The first layer (2) is adapted to allow a first amount m1 of mass flow water vapour to pass the first layer (2) in the Z-direction, wherein the second layer (3) is adapted to allow a second amount m2 of mass flow water vapour to pass the second layer (3) in the Z-direction. The condensation zone (7) is adapted to temporary condense and shore an amount t bull ??mc of water vapour such that no formation of condensed of water vapour will occur on the outside (6, 11) of the backsheet (1).</p> |
