Roll covering with improved dynamic properties and good recovery performance

A roll covering is particularly suitable for a roll for the treatment of a paper web, paperboard web, or any other web of fibrous material in a machine for the production and/or finishing the same. The roll covering encompasses at least one layer. The at least one layer is formed of a rubber composi...

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Bibliographische Detailangaben
Hauptverfasser:	PUTSCHOEGL PETER, ULLY STEPHAN
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES FOR PAPER-MAKING MACHINES CALENDERS IMPREGNATING OR COATING OF PAPER METHODS OF PRODUCING PAPER THEREON PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PAPER-MAKING MACHINES PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS TEXTILES TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
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Beschreibung
Zusammenfassung:	A roll covering is particularly suitable for a roll for the treatment of a paper web, paperboard web, or any other web of fibrous material in a machine for the production and/or finishing the same. The roll covering encompasses at least one layer. The at least one layer is formed of a rubber composition that includes at least one (meth)acrylate compound and a rubber component with at least one crosslinked hydrogenated nitrile rubber. Further, the at least one layer has a recovery rate of at least 12 mm per second and/or a maximal degree of plastic deformation of 0.9%, and a maximal tan δ value of 0.16 determined in accordance with DIN 53513 at 60° C. in tension at 10 Hz, 15% static elongation, and 1% dynamic elongation.