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.
Abstract: An improvement (20) for producing an enhanced seam on a machine clothing for a paper or cellulose machine, especially, but not exclusively, when using flat filament yarns (26) in the machine direction of the clothing is shown. The seam has two preformed yarn spirals (20), which are each bound, by the machine direction yarns (26) of the clothing, to one seam edge, thereby each forming a row of seam loops (22) which are meshable with each other and joinable onto each other by means of a pintle wire. At least one spiral (20), preferably both, is, between neighboring seam loops (22) in the row of loops, preformed with special securing portions (24), to which the spiral (20) is attached at the corresponding seam edge. The securing portions (24) hold the seam loops (22) spaced apart and are extended substantially in the longitudinal direction of the spiral (20).
Abstract: A calendering system in a papermaking or board manufacturing process, the system comprising at least one press nip, an endless calender belt (30) having a core (32) and a compressible, elastic material bonded to the core (32), as well as a paper or paperboard web (16) which passes together with the belt (30) through the press nip and the dewatering of which is completely or at least substantially completely terminated earlier in the manufacturing process. The calender belt (30) has in its thickness direction a first hardness on the side (34) of the core (32) closest to the web (16) and a hardness on the opposite side (36) of the core (32) that is higher than the first hardness. The first hardness is so selected in relation to the web (16) that the surface (38) of the calender belt (30) engaging the web (16) can adapt its shape in the press nip (14) to unevennesses in the surface (20) of the web (16).
Abstract: A method of manufacturing a double-layered fabric designed for use in a papermaking, cellulose or board manufacturing machine by a round-weaving technique involves the weaving of an endless weft thread with a plurality of warp threads. Seam loops are formed at the two ends of the fabric by weaving the endless weft thread around a seam thread during the weaving process. In this process, the plurality of warp threads are on one side of the seam thread. The fabric has a first side for supporting fibrous web material to be dewatered and an underside, and the endless weft thread is alternatively disposed on the first side and on the underside of the fabric with each pass around the seam thread. The method includes the improvement wherein the endless weft thread is woven with at least one extra warp thread adjacent to the seam thread when the endless weft thread is on the first side of the double-layered fabric.
Abstract: The invention relates to a woven machine clothing comprising at least two warp thread systems (3, 5) and one weft thread system (4). Characteristic of the invention is that the two warp thread systems (3, 5) have been interlaced with each other by thread twisting alternately clockwise (at 4b/6b) and counterclockwise (4f/6f).