Patent ID: 6276420
Filing Date: 2001-08-21
Classification: B31F,Y10T

Abstract:
In a corrugator machine having a cooling zone located downstream from a heating zone, wherein a corrugator belt, disposed in said cooling zone, pulls corrugated board being manufactured on said corrugator machine through said heating zone, said heating zone not having a corrugator belt, the improvement comprising a coated corrugator belt in said cooling zone, said coated corrugator belt having:a base having two sides, one of said two sides being a face side when said coated corrugator belt is in the form of an endless loop on said corrugator machine; andan impermeable coating of a polymeric resin material on said face side of said base, said impermeable coating of polymeric resin material forming an impermeable layer on said face side of said base, rendering said coated corrugator belt impermeable to air and providing said coated corrugator belt with an increased coefficient of friction relative to said corrugated board to enable said coated corrugator belt to pull said corrugated board more readily through said corrugator machine.