Business Unit Manager Norafin (Americas) Inc.
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In plants for paper production, products of the highest quality and durability are important. A focus is also on the transport and work rolls. In addition to full-metal rolls, lighter and cheaper alternatives have now entered the market, including rolls that consisting of nonwovens and resin blends.
Para-aramid fibers (rarely also PET fibers) are included as nonwoven strips into the roll surface as a fiber-plastic composite. They thereby increase the impact resistance and improve the structure of the roll coverings. The nonwoven strips are soaked directly in the winding on the roll core with synthetic resin and the entire roll then cured, over-turned and ground. For new rolls, this process is repeated several times to build up layers. Norafin uses its own patented process for the seamless joining of rolls to produce the rolled-up nonwoven strips.