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Inkjet marking (CIJ or TIJ) is the most common method when information is to be marked directly on a cork or cap.
The big advantage is that cork often offers a flat and well-defined surface that passes the print head at the same height throughout production. This provides a very stable marking process and makes it easy to write, for example:
Since the printer only needs to hit the top of the cork, it also avoids challenges that can arise when marking on glass, labels or uneven packaging surfaces.
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Laser marking is used much less frequently, but can be a very good alternative when a permanent and durable marking is required.
On plastic caps, CO₂ lasers are typically used, which alter the surface of the plastic by creating a distinct color change or engraving the marking directly into the material.
The advantages are several:
Laser marking is particularly suitable for very large production volumes where the investment can be recouped over time. For smaller or medium-sized productions, inkjet marking is in most cases the most cost-effective solution.
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Labelling directly on corks occurs, but is relatively uncommon in the food industry.
If a label is used, it is usually because there are special requirements that make ink marking not possible, for example:
In these cases, a small label can be applied directly to the cork, although this normally involves a more complex and costly solution.
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Caps and seals can also serve as a surface for product labelling, although in most cases the packaging itself is still the primary location for labelling.
At Logimark, we help food producers choose the right labelling method based on the product's design, production speed and traceability requirements. When it comes to labelling on caps and seals, there are several different technologies, but the choice is often a trade-off between cost, readability and how long the information needs to remain after the product has been opened.
Common challenges when labelling corks and seals:
In our experience, in most cases it is more beneficial to label the packaging itself rather than the cap. This way, important information such as best-before dates, batch numbers and traceability codes remain even after the product has been opened.
When marking is still placed on the cap, inkjet marking is almost always the most cost-effective solution. Laser marking is mainly used in very high-volume production where the requirements for permanent marking justify the investment, while labelling is normally reserved for special cases or used as part of a warranty seal. The result is a solution that both meets the food industry's traceability requirements and works efficiently in a modern production line.
The biggest disadvantage of placing the label on the cap is that the information is lost when the consumer opens the product and throws away the cap (in cases where the cap is not attached to the packaging).
For products that are consumed immediately after opening, such as soft drinks or other beverages with caps, this is rarely a problem. However, it may be less appropriate for products that are used for a longer period of time, where the consumer may need to be able to read the best before date or batch number even after the package has been opened.
Therefore, we often recommend that critical information is instead marked on the packaging itself when the shelf life information needs to remain throughout the product's use.
With the right technology, we at Logimark ensure that even the smallest packaging parts – corks and seals – receive clear, durable and reliable labelling that meets both legal requirements and customer needs.
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.
Fill out the form and we will contact you!
You can also call us directly at + 4610-444 1600.
