D - Textiles – Paper – 21 – F
Patent
D - Textiles, Paper
21
F
D21F 3/00 (2006.01) D21F 3/02 (2006.01)
Patent
CA 2161486
There are provided a press blanket for a pressing device intended for extracting liquid from a web passing through a press nip of a papermaking machine, and a device for producing such a press blanket. In addition to the reinforcing threads extending in the axial direction and circumferential threads arranged thereon and extending in the circumferential direction of the press blanket, the press blanket comprises a continuous fabric layer or a bandage extending in the area between the circumferen- tial threads and grooves or blind holes starting at the surface of the press blanket. The continuous fabric layer acts to prevent the propagation of fissures that may form in operation due to the high pressing forces, preferably at the bottom of the grooves as a consequence of the high notch stresses prevailing at these points. This significantly improves both the service life of the press blanket and the operating safety. The fabric tape may be spirally wound into the compound simultaneously with the production process, by pouring the elastomeric material onto a preferably cylindrical casting mold.
Robic
Voith Sulzer Papiermaschinen Gesellschaft Mbh
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