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Two options for coding aluminum cans-laser and inkjet.

Traceability and serialisation requirements make labelling an important role in canned beverages. That's why, on the production line, each canned product is given a human-eye and machine-readable traceability code, which is continually identified and stored throughout the supply chain. Traceability codes not only play a key role in identifying, recalling or withdrawing products in the event of a quality problem, they are also a tool for consumers to obtain accurate information about the product.


October 12, 2023

1. Is labelling important in the beverage canning sector?

Traceability and serialisation requirements make labelling an important role in canned beverages. That's why, on the production line, each canned product is given a human-eye and machine-readable traceability code, which is continually identified and stored throughout the supply chain. Traceability codes not only play a key role in identifying, recalling or withdrawing products in the event of a quality problem, they are also a tool for consumers to obtain accurate information about the product.

2. How difficult is it to assign codes to canned beverages?

The difficulty of coding canned beverages is mainly caused by several factors. Such as production line speed (at present, the typical soft drinks canning line speed of 600 cans / minute, the code system needs to match this speed at least), the harsh production environment (beverage canning is often seen in the production of wet sugar-containing environments, the temperature can be as high as 45 degrees Celsius), the surface of the cans of beverages assigned to the code of the difficulty (most of the canned products, the logo engraved in the bottom of the can, the surface is concave, the surface of the marking and uneven, coupled with the production line speed, which exacerbates the difficulty of marking), the canned beverage cans, the canning line speed is very high. The speed of the production line further aggravates the difficulty of marking. The extension or blurring of a mark is often related to the speed of the production line, but it is equally possible that the marking system is not suitable for the surface of the can). It can be argued that a suitable marking system needs to fulfil these requirements first.


3.What technology is currently most widely used in coding applications for canned beverages? 

Continuous inkjet coding (CIJ) is the traditional coding method for aluminium cans for beverages. Fibre optic laser technology is now the alternative for canned beverage marking applications.

4. What are the main advantages of CIJ technology

The advantages of CIJ are mainly due to its ease of installation, simplicity of use, as well as its great adaptability to coding on high-speed production lines and uneven surfaces. The combination of printheads and inks is what makes CIJ's high quality coding possible. It can be said that, to adapt to the production line speed, combined with a variety of inks, and further optimise the performance of the CIJ, to ensure that in the most demanding canning and packaging environment, to provide high-quality marking.


5. What are the main advantages of fibre laser technology as an alternative to CIJ technology?

The biggest benefit of fibre laser technology is that it can help customers to complete heavy coding tasks and at the same time realise their desire to avoid the use of consumables.

In fact, laser marking technology has been widely used in the beverage industry for a long time, and it is flexible enough to be applied to most packaging types, reproducing high-resolution fonts and graphics. In the coding of canned beverages, fibre lasers can mark bare, coated or anodised aluminium thanks to their high peak pulse power, leaving an indelible mark on the anodised surface (a process that does not involve marking but actually creates a protective layer on the aluminium surface). Fibre lasers can successfully strike a balance between high resolution marking and high speed engraving.


6. Are fibre lasers capable of producing canned beverages at high speeds?

Yes, the BTMARK range of fibre optic marking machines reach speeds of at least 10m/s.



7. As the country is paying more and more attention to environmental protection, are there any environmental factors that need to be taken into account in the coding of canned beverages?

More and more companies are committed to social responsibility and tend to purchase technologies that enhance their environmental quality. Labelling products are both energy consuming and volatile organic chemicals. When shopping for the right CIJ product, you need to first consider whether the chemicals used, such as ink, have the relevant certificates of compliance.


8. What are the advantages of a fibre laser machine in the environmental certification of a company? 

The environmental performance of the  is another of its features. The laser technology does not require any replenishment of consumables and does not involve any waste disposal. This is a great benefit for companies with green credentials and will increase the reuse of aluminium can packaging.


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