Xaar unveils Ultra High Viscosity printhead technology for labels and packaging

Xaar Nitrox Elite Printhead

“The advanced capabilities of Xaar’s Ultra High Viscosity technology demonstrates the significant difference that inkjet printing can make for label and packaging printers,” the company recently pointed out. As part of Xaar’s ImagineX platform, Ultra High Viscosity technology ensures that Xaar’s printheads deliver high impact, productive and efficient results for volume digital label and packaging printing applications. By enabling an extended high colour gamut and fluids with larger particles and more pigments, colours are more vibrant and whites and blacks are stronger. The ability to print high opacity (especially whites) in a single pass is extremely useful for delivering impact on many labels and direct-to-shape packaging printing applications, Xaar added. Ultra High Viscosity technology is currently available across many of Xaar’s printheads – including the Xaar Nitrox, the 50x series and Xaar 2002.

With Xaar technology, fluids and inks with viscosities of up to 100 centipoises can be jetted in a single pass.

In addition, fluids and inks with viscosities of up to 100 centipoises (cP) can be jetted in a single pass, further opening up opportunities for label and packaging printers to deliver “new and exciting finishes” for clients across a wider variety of packaging materials with a high degree of efficiency and productivity. Energy is also saved because UV fluids, which previously required heating to 45 degrees C before jetting, can now be laid down at room temperature. Overall, less fluid is required as well, making the entire process even more sustainable. Plus high-build varnish embellishments can be achieved more easily – to add texture, visual impact and functionality (such as ink that resists cracking on flexible surfaces) to labels and packaging. From braille and tactile warning triangles on labels, to the latest haptic effects for a high-end look and better “shelf presence” for rigid and flexible packaging, with Xaar’s Ultra High Viscosity technology, results can now be achieved that have traditionally only been possible via screen printing.

Graham Tweedale

“We are already seeing how Ultra High Viscosity technology is opening up new possibilities for Xaar in a number of applications, particularly label and packaging,” said Graham Tweedale, General Manager of Xaar’s Printhead Business Unit. “Whereas previously inkjet printheads have typically been only able to jet fluids of around 8 to 12 cP, our technologies enable printers to jet much higher viscosities, achieving a wider colour gamut and unparalleled opacity, and can be used to print an extensive range of special effects. In addition, after many years of requests from clients to be able to print higher molecular weight photopolymers to increase resistance and flexibility for printed materials, our Ultra High Viscosity technology has realized this capability, truly unleashing the power of inkjet.”

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