| abstract |
Use of an essentially impermeable transfer belt ( 16 ) for a soft tissue paper machine for conducting a soft tissue web ( 1 ) through a shoe press nip in the press section of the paper machine, and from the shoe press nip to a Yankee cylinder ( 5 ) in the dryer section of the paper machine in a closed draw. The Yankee cylinder forms, together with a transfer means ( 17 ), a transfer nip for transferring the soft tissue web from the transfer belt to the Yankee cylinder. The transfer belt comprises a carrier and an elastically compressible polymer layer on its side facing the web, the polymer layer having a hardness between 50 and 97 Shore A and having a web-contacting surface which has a pressure-sensitive, resettable degree of roughness, the web-contacting surface having a degree of roughness in a non-compressed state of R z =2-80 μm, measured according to ISO 4287, Part I, and a lower degree of roughness of R z =0-20 μm when the polymer layer is compressed by a linear load of 20-220 kN/m applied to the essentially impermeable transfer belt as measured in a non-extended press nip. |