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Pelikan Hardcopy has selected a Bone Markham machine, provided by Advanced Supplies, to improve machine speeds at its Turriff site in Aberdeenshire, Scotland.

The machine features a carbon-fibre chamber and doctor blade system to replace a conventional open pan and adjustable trailing blade assembly.

Delpro, a designer and manufacturer of equipment for the converting, packaging and printing industries, fitted the Bone Markham system and the success of the upgrade led to an order for similar equipment to be fitted to two additional machines.

The reverse-gravure Bone Markham machine applies a solvent-based carbon black coating.

On one particular product, not only was the machine speed increased from 40m/min to 100m/min, but a number of other advantages were also gained.

Setup time and coating and substrate waste in achieving defined coat weight was reduced, while changeover time from one coating to the next was also cut, together with savings in waste coating volume.

The gelling of the coating mix in the coating tray was eliminated and the evaporation of coating solvent was diminished because of the reduced open area of the chamber.

Repeatability of coating weight without the need for operator intervention was a further benefit, according to Advanced Supplies.

The subsequent fitting of a hopper-fed heated aluminium chamber and mounting mechanism to a second machine and a carbon-fibre chamber with mounting and coating yoke mechanism to a third machine produced similar results, with the latter for the first time enabling the machine to achieve satisfactory performance.

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