| 摘要 |
?bstract A press felt for transporting a fiber web through the press section of a paper machine and for receiving water from the fiber web, the press felt comprising at least one fabric layer and a surface layer on both sides of the felt, the air permeability of both surface layers being substantially smaller than that of all fabric layers. In order to make the removal of water more efficient and to avoid the rewetting of the web, the air permeability of the rear side surface layer is substantially smaller than the air permeability of the surface layer on the side of the web. |
