Reduction of foil consumption is of great importance. Stopping a printing press generates a lot of waste. Because of Vinfoil’s non-stop process, there is no loss of new foil during reel changes, and hardly any loss of printed sheets.
On top of that all foil reels are used to the core, even when used for multiple production runs.
Vinfoil cares about the environment. Therefore we dispose of the used foil in an environmental friendly way by shredding the wasted foil in-line and compressing the shredded foil into bales which can be disposed of in any current waste incinerator.
The most modern electronic technology has been used by designing Vinfoil – almost all electronic parts are from
Bosch Rexroth. To assure the highest quality of the Vinfoil module (and thus of the final printing result), only
components from well known European manufacturers are used. All Vinfoil units are made in Holland.
Working of the module
The Foil Loading Station will be installed cross against the press, next to delivery. The upper frame with crossbars is connected with an adapter joined with the last coating module and the delivery.
Cast & Cure
In the coating tower, before the UFC unit, UV varnish is applied to the sheet. A full foil reel with hologram effects is unwinded and transported to the upper frame. The foil is then fed trough a foil storage, over a crossbar, to the DFD (Direct Foil Drive) module. From here the foil goes through the blanket and Impression cylinder, where after the UV Varnish is cured by a UV lamp, which shines through the hologram film (This system to be delivered by the press manufacturer) After that the foil goes back over a crossbar to the foil loading station and is wound up.
When the reel is empty, the Vinfoil module sends a stop signal to the printing press. When the last sheet is ready, the foil transport is stopped and the changeover can begin. 2 vacuum bars installed in the splicer keep the foil in position and cut it off. 2 other vacuum bars take over the foil which is in the machine. Than the change-over takes place. After that the 2 vacuum bars place the foil towards the other vacuum bars. The foil is sealed and the production can start. The estimated production break: 2 à 3 minutes (the operator must be present).
|