State of the art nozzle-less technology
Our core technology is a direct colour digital deposition, non-contact print head, capable of continuous tone, with nozzle-less ejectors and drop-on-demand. We use state-of-the-art technology to apply our digital printing solutions across a wide range of packaging applications and a vast range of substrates without the need for substrate pre-coating.
Patented Intellectual Property Tonejet has comprehensive patent coverage and intellectual property rights relating to our unique electrostatic jetting digital print engine, with broad international coverage of our technology. The result is a complete digital printing engine that our equipment partners can rely on without the need to seek licences from other digital system providers.
Electrostatic jetting The Tonejet Electrostatic Jetting process uses the principle of electrostatically ejecting charged pigment ink particles from a linear array of ejector tips. This unique no-nozzle printing technology is able to deposit concentrated pigmented inks, achieving a super-thin ink layer of less than 0.5μm. Ink flows continuously around the ejectors, even when the print head is not printing. This continuous flow of ink allows the print head to be constantly in a print-ready state.
Tonejet ink The ink consists of charged pigment particles in a non-conducting carrier liquid. To jet ink from the ejectors, a voltage is applied individually to the ejectors in correlation with the print data, resulting in the charged pigment particles being accelerated away from the ejectors towards the substrate at 10m/sec. Because the pigment particles are charged more than the carrier liquid, the pigment particles are preferentially jetted resulting in a concentrated pigment jet, which in turn results in a very thin, yet dense ink layer on the substrate.
Grey scale without sacrifice Due to the nature of the electrostatic process, grey scale or drop volume variation can be achieved by digitally modulating how long the voltage is applied to the ejector during the individual print cycle. Because this occurs within the cycle or period of the print frequency, currently 24kHz, there is no loss of print speed when grey levels are applied.
Ultrasonic Maintenance Tonejet has developed the world-first fully integrated, in-situ, high frequency ultrasonic print head maintenance system. Incorporating random frequency variation to ensure uniform cleaning, quick flush or deep clean options, resulting in a non-contact cleaning of the print head components.
Melbourn Science Park
SG8 6EE, UK