Ensuring patient safety with vision systems inspection of printing and labelling
Packaging is the final step in the manufacturing process of pharmaceuticals and it is extremely important for maintaining the highest quality and patient safety to ensure that all products are correctly and legibly labeled and coded. For this purpose, vision sensors and cameras are used; they detect erroneous products e.g. with illegible print, print with low contrast, incorrect data. In case of detection, they are removed from production line at the reject station. As a result, only products verified as good leave the machine responsible for marking and labelling. The whole process is supervised and managed by software, which has funcionalities to generate production reports and statistics after the batch is completed and production ended.
Pharma industry trends
With ongoing global pandemic, this is even more pronounced. The needs of continuous development in the field of paharmaceticals packaging, marking and labelling. The specifics of the pharmaceutical industry have changed considerably in recent years. We can observe a significant increase in production focused on short batches and readiness to quickly respond to changing needs and demand for pharmaceticals. This requires more flexibility of the whole process of marking and labeling, as a consequence implementation of machines designed for this type of operation, adapted to quick changeovers and production on demand also personalisation. Parallel importers and contract manufacturers have significantly increased their market share, and this type of business particularly needs off-line equipment focused on short production batches.
Printing and labelling technologies
Printing and labelling of medicines requires a very individual approach, choosing the optimal technology (e.g. inkjet, high resolution inkjet (TIJ), thermal transfer, or laser) tailored to achieve the highest quality print on a given type of substrate and material. An integral part of the process is to perform test printing / marking on the customer’s product.
Many technologies are available:
Laser marking involves discoloration of the outer shell of the material to obtain a durable, high-quality marking on its surface. Depending on the customer’s requirements and the substrate, it can take various forms, including ablation, engraving, discoloration, foaming or annealing. In pharma industry very often used for blister marking as well as label marking. High speed and very reliable technology.
High-resolution printers are ideal where high print quality must go hand in hand with high line speeds. Excellent adhesion and lightfastness are achieved thanks to fast drying inks. We offer this solution where cleanliness, efficiency and reliability are important. This is best technology for carton marking, ensures high quality prints and meets all pharma industry standards – especially serialisations and track&trace application.
Thermal transfer printing technology is designed for printing on flexible materials such as foil, Tyvek and self-adhesive labels. The devices enable continuous and start-stop operation. The dyeing process is based on a dye ribbon and a print head, otherwise known as a heater. The heated ribbon transfers ink – in a selected form of characters and shapes to the product – in high resolution. Thermal transfer printers are often integrated with packaging machines as well as and labeling systems.
As a machine bulider and a provider of complete solutions for the pharmaceutical industry, we have many years of experience allowing us to deeply understand and analyze custmer’s needs in order to offer you the best possible solution. In many cases, our equipment inegrates both variable data marking, labeling and vision control technologies, all managed by a dedicated vision control system.