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Labelling on flowpack

Flowpack is used in the food industry for everything from bread and candy to cheese, meat and frozen goods. A flow wrap machine works by feeding a flat plastic film around the product, forming it into a bag and sealing it.
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Linx TT500 TT0 thermal transfer printer

Different techniques for Flowpack/Wrap

Product labelling flow pack - Thermo direct thermo
Labelling product marking plastic film code

Labelling

Labelling is a slightly more unusual option, but it does exist. Using print & apply systems, labels can be printed and applied directly to the packaging in real time, making it easy to include variable data such as batch numbers, best-before dates, barcodes or QR codes.

With the right choice of material and adhesive, labels can stay on shiny, flexible or damp surfaces, which is a common challenge in the food industry. In addition, labels can provide added design value through special effects such as foiling, holography or transparent material.

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Read more about Flowpack/Wrap

Flowpack is used in the food industry for everything from bread and candy to cheese, meat and frozen goods. A flow wrap machine works by feeding a flat plastic film around the product, forming it into a bag and sealing it.

Marking directly on the film – the most common choice

In our experience, the most common labelling process is done directly inside the flowpack machine, before the plastic film has been formed into a finished bag. There are several advantages to this:

  • The film is smooth and stretched, providing a stable and precise print
  • The marking always ends up in the same position
  • Higher quality of text, barcodes and QR codes
  • Possibility of high production speeds without compromising readability

Once the packaging is formed, the surface often becomes uneven and moves more randomly on the conveyor belt, making it much easier to create a neat and consistent result before the bag is formed.

This is also why you often see a pre-printed design with a special white box where variable information is applied directly in the machine.

How does labelling on flow wrap work?

Labelling does occur – but is generally less common directly on traditional flow wrap packaging.

The reason is simple: Soft plastic packaging such as chip, nut or snack bags is often uneven and movable after the packaging process, making it more difficult to apply labels with high precision.

We find that labelling is most often used when:

  • the label does not have to be exactly right
  • you want to highlight campaigns or temporary messages
  • the product needs additional information after packaging

In these cases, the label can be applied after the flowpack machine on the conveyor line.

Our recommendation for labelling on flowpacks:

For the highest print quality and reliability on the film roll: choose TTO.
For fast and flexible direct marking on pre-packaged products: choose ink marking (CIJ).
For extra information, language variations or promotions: select labelling.

With the right technology, we at Logimark ensure that the labelling on your flowpack packaging is clear, durable and adapted to both the product and the production flow.

Questions & Answers (FAQ)

It depends on the need. TTO (thermal transfer printer) is usually the optimal solution as it prints directly onto the film roll with high resolution. Inkjet (CIJ) labelling is flexible for pre-packaged products, and labels are used when additional information or multilingual versions are needed.
TTO writes directly onto the packaging film before it is filled and sealed. The marking is sharp, durable and very precise, even for logos, QR codes and small texts.
Yes. With the right ink, CIJ can produce clear codes even on cold and damp packaging.
Labels are practical when the packaging needs a lot of information, multiple language versions or promotional messages. They can be applied in real time with print & apply systems and often complement a pre-printed base film.
Yes, especially for producers who want high quality printing in high volumes. Although the investment may be higher than CIJ, TTO saves costs in the long run thanks to durable marking, high precision and fewer quality deviations.
Absolutely. It is common to use TTO for batch numbers and best-before dates on the film, and supplement with labels for promotions or language variations.

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