Seiko Instruments showcases capabilities of single printhead printing.
At the Seiko Open Week 2021 event, Seiko Instruments GmbH showcased the capabilities of its single printhead printing enabled by state-of-the-art RC1536, RC1536L-2C and 1024HG printheads. The key highlight was Vertical 2-colour printing using just one RC1536L-2C printhead. The compact design was integrated in the Markoprint integra PP108 from Bluhm Systeme GmhH and used oil-based ink from Sun Chemical.
Another highlight was printing a matte UV varnish of 30mm print height. Printing the new UV-based matte varnish from Siegwerk, even at a print height of 30mm, was very comfortably done, all thanks to the RC1536 printhead series from Seiko. And the drying unit from Integration Technology put the finishing touches to it all.
Néstor Pascual introduced the new 2-colour version of Seiko´s 1024HG series of printheads integrated in the Inktester Digital from People & Technology.
The constant ink stream within the circulation structure removes bubbles and impurities and prevents sedimentation of ink containing large pigments.
The RC1536 printhead can accept a wide range of viscosities compared to conventional printheads. It is compatible with oil-, UV-, solvent- and WATER-based fluids. Featuring an extra wide print-width (108mm) enables print-bars to be configured with a small number of printheads. Isolated channel technology allows the printhead to operate at high frequency (up to 37kHz) and achieve up to 10 levels of greyscale with a drop range size between 13pl to 225pl.
The high flow Ink Circulation Structure means ink constantly circulates immediately behind the nozzles at high speed. This ensures nozzles recover from blockages automatically and instantaneously, eliminating the need for routine nozzle cleaning during operation and significantly reducing ink wastage. Ink is in constant circulation and always ready to jet, removing the need for priming or purging before starting printing. The RC1536 is also suitable for Stop-and-Go operations.