B - Operations – Transporting – 41 – C
Patent
B - Operations, Transporting
41
C
B41C 1/05 (2006.01)
Patent
CA 2628161
The aim of the invention is to further improve the ablation precision in terms of structuring the depressions of the basic grid of a gravure printing form and the printing behaviour of the depressions of a basic grid of an erasable and re-usable gravure printing form, by increasing the uniformity of the base of said depressions. To achieve this, the filler material that fills the erasable, re-usable printing gravure form is removed using laser beams, whose intensity profile over the cross-section of the laser beam corresponds to a pillbox profile.
L'objectif de l'invention est d'améliorer davantage la précision de l'ablation par rapport à la structuration des creux d'une trame de base d'une forme en creux et les caractéristiques d'impression des creux de la trame de base d'une forme en creux effaçable et réutilisable grâce à une plus grande uniformité du fond des creux. A cet effet, l'élimination de la substance de remplissage, avec laquelle la trame de base de la forme en creux effaçable et réutilisable est remplie, est effectuée au moyen de faisceaux laser dont le profil d'intensité sur la section transversale du faisceau laser correspond à un profil de type "pilulier".
Frlan Mladen
Fuhrmann Hartmut
Man Roland Druckmaschinen Ag
Manroland Ag
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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