Product category:
Liquid Analysis: Viscosity, Density
News Release from: Fullbrook Systems | Subject: Viscosel
Edited by the Processingtalk Editorial
Team on 21 October 2004
Viscosity control avoids sticky problems
Many commercial printers are applying water based re-moist adhesives as part of their printing process: in order to maintain the required quality, they have installed Brookfield Viscosel units
Many commercial printers are applying water based re-moist adhesives as part of their printing process In order to maintain the required quality many companies have installed Brookfield Viscosel units to control and maintain the viscosity of these latest water-based systems
This article was originally published on Processingtalk on 2 May 2007 at 8.00am (UK)
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Viscosity control prevents sticky problems
Many commercial printers are applying water based re-moist adhesives as part of their printing process: Brookfield Viscosel units control and maintain the adhesive mix by monitoring viscosity
The Viscosel units were chosen as the result of technical advice given by the UK distributors - Fullbrook Systems.
Although these adhesives are inherently stable, the point of application is located close to the drying ovens and considerable viscosity variation cab be experienced.
This variation, when left unchecked, gives rise to problems of adhesive build-up on the application roller, chillers, angle bars and folding ploughs.
Conversely, if over-diluted, the adhesive penetrated the paper or was too thinly applied to give satisfactory end-use results.
Users of the viscosity control system have commented that machines are being run faster with less stoppages for cleaning, and that the results are absolutely consistent, no matter what the length of run.
The viscometers had also greatly improved the mileage figures obtained from the adhesive.
Further advantages of the viscometers were their ease of use, and swift clean-up at the end of a production run.
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