DataLase™ is a nontoxic and environmentally friendly ink, coating, or additive that produces a positive image when marked by a low-power CO2 laser. The ink, coating, or additive undergoes a simple chemical color change and creates an image that is stable and has high contrast. The laser is generally installed on the packaging/filling line for variable information applications such as date and bar coding.
Sherwood Technology: Sherwood Technology: "Virtual" labels
Sherwood Technology has developed a “virtual label” system that replaces the application of variable-data print-and-apply labels in the distribution chain by incorporating a laser responsive coating into packaging materials such as cartons, cases, and overwraps.