A flow pack is made by forming a flat endless film into a cylinder-shaped cut film, accommodating the width and height of the product.

The film will be sealed longitudinal. After sliding the product into the cylinder-shaped tube, the other sides will be sealed and cut off. This results in the three typical sealing edges: one on the top, one on the bottom and one on the backside, covering the full length of the flow packs.

This packaging format was originally developed for the bakery and confectionary industry and is still used for packing of biscuits and bars.

Interpak has further developed this technique. It is now also possible to flow pack small flat objects (paper / cardboard / stickers) as well as 3D objects (lollypops, toys, candy, sugar cubes etc) more tightly. Due to/based on these newly developed technical possibilities, Interpak is also able to flow pack products that need to be gathered, folded or counted prior to packing.