Contiweb develops paper web moistening system

Contiweb has launched a standalone remoistening applicator for digital web presses called the Digital Fluid Applicator, or DFA, which is said to improve the overall print quality by preventing issues such as the loss of signature flatness, curling and broken folds.

From left to right: Clemens de Vroome, Contiweb senior development engineer; Hans Heijnen, Contiweb senior mechanical engineer; and Rutger Jansen, Contiweb CEO

Essentially, this is a reworking of Contiweb’s existing Fluid Applicator for heatset web offset applications. It mixes tap water and a surfactant and continually circulates this within the system to remoisten the paper web without the need for specially treated deionized water. The control system ensures consistent results, even when the press speed changes. It’s possible to adjust the degree of remoistening as needed and even to set differing amounts for each side of the paper. Settings can be saved for repeat jobs.

Rutger Jansen, CEO at Contiweb, explains: “There may be a perception in the market that digital inkjet printing does not require remoistening. However, the process generates high temperatures during drying, resulting in significant loss of moisture and diminished quality of the printed matter, a difficulty we’ve been determined to resolve.”

There’s also an option to add silicone, which is useful for any production lines that include inline finishing to prevent damage to the printed surface from the finishing units.

Jansen adds: “The Contiweb team has developed a Plug and Play system that is compatible with digital web presses from all well-known manufacturers. Using economical, easy-to-access tap water, with high performance pure silicone, the Contiweb DFA will provide a step-change in the quality of digitally printed products. I’m very much looking forward to seeing the results for our customers.”

You can find further details from contiweb.com.


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