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The Hydro-Scope from Novasys Group

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article image The Hydro-Scope
Novasys Group  presents the Hydro-Scope from Testprint designed to provide hydroscopic measurements that help maintain stable conditions for printing.

In an offset press, the fountain solution is used to separate ink from the image and non-image areas on the offset plate, which is why ink on a full size running offset press is seldom ‘dry’, but an emulsion of ink paste and fountain solution.

In order to be able to simulate this phenomenon in the laboratory, a dedicated procedure is required to maintain stable conditions for printing, which is provided by hydroscopic measurements.

The Hydro-Scope offers a procedure for the preparation of printing emulsions, which correlate with the state of such emulsions on a full size press. With the Hydroscope Printability Unit, one can ink up a printing disc in no time and immediately make a print on paper, allowing one to analyse how real ink/fount emulsions interact with a known paper as a function of transfer and print/show through.

With the additional tack measuring roller, one can further investigate the ink/fount emulsion interaction with paper as a function of tack force development immediately after printing.

Specifications of the Hydro-Scope:

  • Testing speeds: Accurate speed control from 0 - 600 m/min
  • Syringe volume: 10ml (storage of fountain solution)
  • Input voltage range: 110 - 115 or 220 - 240 volts, 50 - 60 Hz
  • Power consumption: 350 watts
  • Dimensions: 77cm x 32cm x 33cm
  • Weight: 70kg

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