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High definition dot viewing on-the-fly

QuadTech claims its new SpectralCam HD colour measurement system could make offline colour measurement of web-fed packaging film “a thing of the past”.

The new system’s high definition viewing capability is said to facilitate easy on-the-fly detection of dot abnormalities such as pin-holing, bridging, doughnuts and halos. Images are captured at 2,500dpi and made instantly accessible through the Icon user interface, “so that dot quality detail can be analyzed by the human eye as soon as ink is transferred to the substrate”.

“The operator has reassurance that dot abnormalities will be detected to a much higher standard than was previously possible, without compromising production up-time levels,” comments Laura Casale, project manager at QuadTech.

The enhanced viewing capability enables print operators to react faster to changes in pressure or plate anomalies and take appropriate remedial action in a shorter time, thereby reducing material waste and reject levels.

SpectralCam HD is expected to be of particular benefit in flexible packaging printing situations, where the ability to view dot profiles is paramount, and to operators of central impression-flexo presses, which require significant pressure adjustment. It performs at up to 3,500ft/min and is capable of working with a wide range of paper and film substrates.

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