Patent ID: 6066234
Filing Date: 2000-05-23
Classification: B31F

Abstract:
A process for creping a cellulosic paper web from a moving surface by engaging a stepped creping blade substantially against the moving surface; said process comprising the steps of:providing a stepped creping blade having an elongated body including a front surface, an upper surface, and a back surface, said upper surface including a substantially planar top surface having a width of 20% to 60% of a total width of the stepped creping blade and a recessed surface, said recessed surface including a substantially continuous side surface having a depth from 30% to 300% of said top surface and a substantially continuous bottom surface with said side surface extending substantially parallel to said front surface and substantially perpendicular to said bottom surface with said top surface is angled with respect to said front surface;contacting the cellulosic paper web conveyed by the moving surface with said substantially planar top surface; andcontacting the cellulosic paper web creped by said substantially planar top surface with said bottom surface.