Laser marking and inkjet coding are the two mainstream identification solutions, each with trade-offs in economics and effect.
Laser marking uses no consumables and is permanent, suited to metal, glass and some plastics. However, the initial investment is higher and it has requirements on material and color; contrast can be limited on transparent or white surfaces.
Inkjet printing has a lower initial cost and wider material adaptability, meeting needs via different inks, but requires ongoing consumables and printhead maintenance.
Recommendation: choose laser for permanent marking on metal, hardware and glass bottles; choose inkjet for multi-material lines like food plastic bottles and cartons requiring flexible changeover.
We recommend sample testing combined with your output and budget; our engineers can help with comparative trials.