
Laser marking is the most precise and permanent method for glass ampoules and vials. The marking is non-contact and creates a frosted or contrasting code on the glass surface, making it both legible and sterile. Since no paint or ink is used, the process is free from contamination risk.
Advantages:
Ink marking is a fast and flexible option, especially suitable for high-speed lines. With the right type of ink – such as UV-resistant or heat-resistant ink – the marking can withstand both sterilization and transport. The technology is often used for batch numbers, best-before dates and simple identification codes.
Advantages:
Labelling is used when the vial or ampoule needs additional information, security seals or designed labels. Wrap-around labels allow the entire circumference of the container to be used to display text, codes and logos. The labels can also contain variable data that is printed in real time using thermal transfer (TTO) or ink.
Advantages:
A particular challenge when labelling vials is balance and stability during production. Since the liquid is often in the upper part of the vial while the bottom is empty glass, the center of gravity is high. This makes the vial more prone to falling or wobbling during rapid handling, especially when traveling on a conveyor belt. Therefore, equipment with precise product control, smooth handling and vibration-free labelling is required to ensure both accuracy and safety.
In addition, the surface is often round, small and sometimes transparent, which places high demands on contrast, focus and stability of the marking technology. The marking must be done contact-free and with great precision to avoid contamination or damage to the packaging.
Challenges when labelling vials and ampoules:
For pharmaceutical products in glass vials and ampoules, we recommend laser marking for permanent and sterile marking that meets GMP and FMD requirements. For high-speed production of variable data, inkjet marking (CIJ) is an effective choice. If the packaging requires more space for information, or when security sealing is necessary, labelling with wrap-around or TTO printing is the optimal solution.
Combined with vision systems for code quality control and positioning, our solutions ensure that every label is accurate, verified and fully traceable – for safe and reliable pharmaceutical production.
Do you want to see how the machine works in your production on your material or product? Book a free Demo We will be happy to show you the machine (or similar machine) in operation and how we can tailor the solution based on your needs.
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You can also call us directly at + 4610-444 1600.