A process for perforating printed or embossed substrates

B - Operations – Transporting – 26 – D

Patent

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Details

B26D 5/20 (2006.01) B26F 1/20 (2006.01) B41F 17/02 (2006.01)

Patent

CA 2659150

A process for registering lines of termination with indicia in a transported sheet of web material is disclosed. The process provides for the steps of: (a) transporting the sheet of web material in a first direction; (b) applying indicia to the sheet from a print cylinder, the print cylinder having a first angular position; (c) imparting lines of termination to the sheet of web material with a rotatable blade, the rotatable blade having a second angular position; (d) calculating a position error by comparing the first angular position of the print cylinder and the second angular position of the rotatable blade; and, (e) adjusting the second angular position of the rotatable blade according to the position error.

La présente invention concerne un procédé pour repérer des lignes de fin avec des inscriptions dans une feuille transportée de matériau en bande continue. Le procédé comprend les étapes suivantes : (a)le transport de la feuille de matériau en bande continue dans une première direction;(b)l'application d'inscriptions à la feuille provenant du cylindre d'impression, le cylindre d'impression ayant une première position angulaire;(c)la réalisation de ligne de fin à la feuille de matériau en bande continue avec une lame rotative, la lame rotative ayant une seconde position angulaire;(d) le calcul d'une erreur de position en comparant la première position angulaire du cylindre d'impression et la seconde position angulaire de la lame rotative; et(e)l'ajustement de la seconde position angulaire de la lame rotative en fonction de l'erreur de position.

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