Aroma and moisture barrier flat film / half-tube film for automatic packaging machines

The aroma and moisture barrier flat film and half-tube film for automatic packaging machines can be chosen when the product's characteristic aroma and its moisture-related texture both need protecting. The machine forms the pack from the reel film, and the right structure serves two interrelated product protection tasks. It can be agreed for both chunky and powdery fills, with a glossy transparent or matt finish. The finished pack is shaped by the contents, the film and the seals together.

Joint protection of aroma and texture

For an aromatic, crisp product, retaining aromas and the effect of ambient moisture may both be essential. In other cases, the product's own moisture must be kept within the desired range. When choosing the combined structure, we therefore define both requirements precisely, based on composition and storage. The right film is best assessed together with the whole pack, because the large-area material and the seal lines together determine the protection achieved.

The pack takes shape in the machine

Flat film, half-tube film and tubular film versions can all be agreed to suit the design of the automatic packaging machine. The reel width and pack length must be matched to the fill volume, leaving adequate space for the seals. With chunky products the size of the largest piece also matters, while with powders dosing and headspace play a greater role. The core, the reel diameter and the unwinding direction are part of the machine data we request, so that the material can be fitted to the existing line.

Sealing and the internal space

The aroma and moisture barrier film can only fulfil its intended role if the finished pack is properly sealed too. Powder, crumbs or product pieces getting into the sealing band must be dealt with at the dosing stage. The temperature, pressure and time must be set for the chosen material. For modified atmosphere packaging, we agree a suitable structure separately. Examining the free internal space, the sensitivity of the product and the packaging process together helps achieve the right design. It is advisable to finalise the settings at the chosen filling speed.

A look for your product range

The glossy transparent version helps present the contents, while a matt surface can give the pack a different character. Film printed with your own artwork can also be made, with information areas designed for the finished pack. With several product variants, a brand look built on the same machine format can be created, but the size requirements and protection expectations of different fills must be checked separately. Coordinating the print position, the sealing bands and the cutting position helps create a tidy, legible pack.

To design an aroma and moisture barrier machine film, please send us the product details, the pack size and the type of packaging machine. Please also indicate the moisture and aroma protection requirements and any modified atmosphere process. We refine the choice of the right reel version together with the results of sample packing, so that the film meets the needs of both the product and the production line.