Patent ID: 6832547
Filing Date: 2004-12-21
Classification: B31F,Y10T

Abstract:
An apparatus for embossing a substantially continuous web of sheet material, including an embossing roll comprising:an elongated core having first and second ends, said elongated core being formed of a substantially rigid material; an elongated sleeve having an embossing pattern formed thereon, said elongated sleeve being formed of a material which is less rigid than said core, said elongated sleeve material having a hardness of less than 40 P&J and having a thickness in the range of about 0.025â€³ to about 0.500â€³; and a positioning means for selectively positioning said sleeve with respect to said core, wherein the positioning means includes means for communicating pressurized air to an outer surface of the core for forming an air cushion between the core and the sleeve, the air pressure at a pressure of at least about 100 p.s.i. to about 300 p.s.i., wherein said elongated sleeve is releasably secured to said core such that said elongated sleeve is axially and circumferentially fixed with respect to said core when in operation and wherein said elongated sleeve can be selectively axially removed from said core when the pressurized air is provided to the outer surface of the core.