Kyocera accelerates digital label printing with a new 100 meters per minute printhead

Meeting the demand for high-end embellishments

The digital printing sector for packaging and labels continues to push the boundaries of speed and material versatility. In a move that directly addresses the growing demand for high-end decorative finishes, Kyocera Corporation has confirmed the commercial launch of its new circulating inkjet printhead, the KJ4A-EX600RC-HX, scheduled for November 2026.

This development is particularly relevant for converters looking to integrate complex embellishments—such as white ink, varnish, and foil decoration—without sacrificing production line speeds. The new unit operates at a resolution of 600 dpi and achieves printing speeds of up to 100 meters per minute. This performance is largely driven by a maximum drive frequency of 40 kHz, which effectively doubles the 20 kHz specification found in Kyocera's previous KJ4A-AL model.

Expanded viscosity and fluid handling

From a technical standpoint, the most critical upgrade lies in the printhead's fluid handling capabilities. The operating viscosity tolerance has been expanded from the previous 6–7 mPa·s range to a broader 8–11 mPa·s. In the context of industrial inkjet printing, this wider window is essential. It allows the system to process heavier, more complex UV fluids required for specialized surface textures and high-opacity applications.

Coupled with a maximum droplet volume of 21 pL and a minimum of 7 pL, the printhead ensures high-deposition printing across an effective print width of 108.33 mm. This is a strict requirement for laying down solid white underprints and tactile varnish effects that brand owners increasingly specify for premium packaging.

Operational stability through recirculation

Furthermore, Kyocera has integrated a proprietary structure that circulates ink directly near the nozzles. This recirculation mechanism prevents the sedimentation of heavy pigments—a common failure point when jetting dense white inks—and maintains consistent temperature and viscosity. The result is a more stable continuous printing process that reduces downtime for maintenance and nozzle cleaning.

As the packaging industry shifts toward shorter runs with higher added value, machinery manufacturers must provide tools that balance aesthetic flexibility with industrial productivity. By expanding the viscosity range and doubling the drive frequency, Kyocera's new printhead offers a robust component for the next generation of digital label presses, allowing converters to execute complex embellishments at highly competitive speeds.