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Avoid time consuming start-up cleaning for your CIJ printer

By aisltd, Thursday, 12th August 2021 | 0 comments
Filed under: Publications.
To ensure that CIJ printers can get back to work immediately after the holiday break, Leibinger Coding and Marking Systems developed Sealtronic – a mechanical nozzle sealing system that is unique on the market.

It protects the ink in industrial printers from drying out and enables an immediate start without the need for cleaning, even after several weeks of production break.

Printers that use so-called Continuous Inkjet (CIJ) technology are used in industry for product marking and coding. In the printhead, electrically charged drops of ink shoot through a nozzle into a collection tube. During their flight, a high-voltage field deflects individual drops so that they end up as pixels on the product – for example on food packaging or an electric cable. Best before dates, batch numbers and 2D codes are created pixel by pixel.

CIJ technology is a flexible marking technique that can lead to problems after production breaks. Some manufacturers call for the time-consuming emptying of the printer following longer shutdowns. Others rely on a closure system that users manually put on the nozzle and catcher tube. “We know from customers that the ink in most CIJ printers regularly dries up after the holiday break in spite of closure systems,” explains Christina Leibinger, Managing Proprietor of Leibinger. “This leads to time-consuming cleaning that delays the start of production and often results in significant start-up problems.”

Nozzle sealing system keeps ink fresh during the holiday break.

“That’s why customers are so impressed with our Sealtronic nozzle sealing system, which automatically keeps ink fresh in all Leibinger printers during the holiday break.” When the user switches off the printer, Sealtronic automatically closes the nozzle and catcher tube. The catcher tube is driven by a spindle drive onto the nozzle and both modules are therefore hermetically sealed. The ink jet only turns off when the system is sealed. Therefore, air doesn’t have a chance of entering the closed ink circuit, unlike with some competitive closure systems that use mechanical flaps or rubber stoppers to try to prevent the system from drying out.

Additionally, in the stand-by mode, the printer rolls the ink through the hydraulic system once a day, preventing deposits from forming in the case of pigmented inks. This automatic ink ‘refresh’ is possible only since the ink circuit is not barricaded by an insert. It also ensures the safety of a closed system. Power consumption is negligible. Leibinger printers have a power consumption of about three watts in stand-by mode – as little as a DVD player in stand-by mode. “If the user switches the printer on again after the holiday break, it is immediately ready for use – without the need for time-consuming cleaning, which unnecessarily delays the start of production.”

To learn more about our range of CIJ printers from Leibinger, please contact the team on info@aisltd.ie.


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