Seventeen Linx 4800 continuous ink jet (CIJ) printers have been installed at Rockware Glass's Knottingley plant. The printers will be used for the company's own traceability purposes, applying a single line text code that is two millimeters high and 12 characters long. The traceability codes are printed with Linx clear UV readable 1121 ink, specially formulated for security and tradeability applications. The ink is almost invisible in normal light but fluoresces purple under UV light, making it well suited to discreet coding applications. This particular ink was selected for use at Knottingley to avoid confusion between the container manufacture date and the sell by date applied by Rockware's customers. As the printers operate 24/h day 365 days/year and code bottles at rates that can exceed 200/min, reliability was a key factor in selecting the final system.
