| 摘要 |
<p>The membrane (10) comprises permeable carrier layer (12) and diffusion-resistant cover layer (14) having anisotropic property. The strips of carrier layer are releasably connected to cover layer. The permeable carrier layer and diffusion-resistant cover layer are connected by using dispersion adhesive. The cover layer is made up of polyester and polyolefin. The carrier layer is made up of non-woven material. The cover layer in the longitudinal direction is higher than cover layer in the transverse direction.</p> |
