Embossing system including sleeved rolls

Details Embossing system including sleeved rolls Embossing system including sleeved rolls

B - Operations, Transporting

41

F

B41F 19/00 (2006.01) B31F 1/07 (2006.01) B44C 1/24 (2006.01)

Patent

CA 2218422

A system for embossing a substantially continuous web of material including a supply for supplying at least one substantially continuous web of material, feeding the substantially continuous web of material, an embossing device for embossing a predetermined pattern in the web material and a take-up device for taking-up the embossed web material; wherein at least one roll of the system includes an elongated core formed of a substantially rigid material and an elongated sleeve formed of a material less rigid than the elongated core with the elongated sleeve being releasably secured to the core such that the elongated sleeve is axially and circumferentially fixed with respect to the core when in operation and can be selectively axially removed from the core. Preferably, the sleeve includes an embossing pattern laser engraved thereon so as to permit the embossing pattern being run by the system to be readily changed.

Système pour gaufrer une bande de matériau substantiellement continue comprenant une alimentation pour fournir au moins une bande de matériau substantiellement continue, faire avancer la bande de matériau substantiellement continue, un dispositif de gaufrage pour imprimer en relief dans le matériau de la bande un motif prédéterminé et un dispositif de tension pour tendre la bande de matériau gaufré; au moins un rouleau du système comprend un mandrin allongé fait d'un matériau substantiellement rigide et un manchon allongé fait d'un matériau moins rigide que le mandrin, ledit manchon étant fixé de façon amovible au mandrin de manière que le manchon allongé se trouve axialement et circonférentiellement fixe par rapport au mandrin quand il est en opération et qu'il puisse s'enlever axialement du mandrin quand on le souhaite. De préférence, le manchon comporte un motif en relief gravé au laser de sorte qu'on peut facilement changer le motif en relief utilisé dans le système de gaufrage.

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