The information generated by laser marking of beverage bottles usually includes product traceability codes, production timestamps, production line numbers, and quality inspection labels. The laser marking content on the PET bottle body may include a 13 digit traceability code, production time in the form of year, month, day, and hour, a combination of alphanumeric production line codes, and a quality inspection certificate. The labeling information on PE bottle caps is relatively concise, commonly consisting of 6-8 digit production batch numbers combined with abbreviated date formats. These dynamic data generated directly by lasers are permanently marked at the bottom of the bottle or inside the bottle cap using dot matrix or linear engraving methods, mainly used for production process control and quality traceability. The coding rules of different enterprises vary, but they all follow the industrial mark standards of readability and persistence.
