Ultraviolet crosslinking equipment under controlled atmosphere

Details Ultraviolet crosslinking equipment under controlled atmosphere Ultraviolet crosslinking equipment under controlled atmosphere

B - Operations, Transporting

05

D

B05D 3/04 (2006.01)

Patent

CA 2552948

The invention concerns an installation wherein is performed a crosslinking operation for a coating such as an ink or a varnish through ultraviolet radiation or electronic beam, in the presence of a gas mixture with controlled oxygen residual content. The installation comprises a chamber including one or more UV lamps or a source of accelerated electrons, required for performing the crosslinking operation, and is characterized in that it comprises an input device adjacent the chamber comprising at least the following three components, viewed successively by the product moving to be treated: a labyrinth system, means for injecting an inert gas forming a gas knife and a channel.

Une installation dans laquelle est réalisée une opération de réticulation .d'un enduit tel qu'une encre ou un vernis par rayonnement Ultra Violet ou par faisceau d'électrons, en présence d'un mélange gazeux à teneur résiduelle en oxygène contrôlée, l'installation comprenant une enceinte qui comprend une ou plusieurs lampes UV ou une source d'électrons accélérés, nécessaires à la réalisation de l'opération de réticulation , et se caractérisant en ce qu'elle comporte un dispositif d'entrée attenant à l'enceinte comprenant au moins les trois composants suivants, vus successivement par le produit défilant à traiter : un système de labyrinthe, des moyens pour injecter un gaz inerte en formant un couteau gazeux et un canal.

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