Patent ID: 6283018
Filing Date: 2001-09-04
Classification: B08B,B21B,B31F,D21G

Abstract:
A method of embossing a paper web, the method comprising the steps of:passing a paper web between a pair of embossing rolls, at least one of the rolls having a relieved pattern surface extending for a width substantially equivalent to the width of the web, the surfaces of the pair of embossing rolls contacting the web and imparting the relieved pattern surface of the at least one embossing roll onto the web; andpreventing or cleaning deposits from the surface of the at least one embossing roll by directing pressurized air through an air nozzle having an elongated narrow outlet configured to direct the pressurized air as an air knife against the patterned surface of the embossing roll after the patterned surface rotates out of contact with the web, the air knife extending an embossing width of the embossing roll.