Moisture barrier flat film / half-tube film for automatic packaging machines

The moisture barrier flat film and half-tube film for automatic packaging machines can be chosen for machine packing of moisture-sensitive products. The aim of the packaging is to reduce the passage of water vapour, which is an important consideration, for example, in preserving the texture of crisp products. The reel material can be agreed with a glossy transparent or matt finish, in flat film, half-tube film and tubular film formats. To choose the right version, we examine the moisture sensitivity of the product, the operation of the machine and the storage environment together.

Moisture protection for texture

Moisture absorbed from the environment can change the texture of some dry products, for example reducing crispness or causing clumping. For other fills, retaining their own moisture may be what matters. We therefore choose the moisture barrier structure to suit the desired condition of the product and the expected humidity. Besides moisture exchange through the film, the condition of the seals also matters. For planning, it is useful to examine the behaviour of the product and the finished pack in the actual retail environment. For loose, crisp fills, moisture protection and a pack volume that protects the pieces must be designed together.

Material choice for a precise task

It is worth stating the moisture barrier requirement separately from other protection requirements. If the product also needs aroma protection, light shielding or specific gas protection, the whole structure must be agreed accordingly. A transparent or matt finish shapes the look of the pack, while the required technical properties come from the chosen film. The grain size, fat content and mechanical sensitivity of the fill are also data that help match the packaging material to real use.

From reel to finished pack

The choice between flat film, half-tube film and tubular film should be guided by the automatic packaging machine and the shape to be formed. For the right width, the product volume and the sealing bands must also be taken into account. We match the core and reel size, as well as the unwinding direction, to the machine's requirements. During a trial run, checking film guidance and seals with the actual fill shows how the material fits dosing and the packaging speed.

Print and consistent processing

The moisture barrier machine film can also be printed with your own artwork. The print position must be matched to the size of the finished pack, the folds and the cutting point, so that the product information can be placed on the right surface. During packing, it is worth preventing powder or crumbs from reaching the sealing area through the dosing routine. A clean sealing surface and sealing set up for the material together help create a proper pack. The artwork and machine trials are therefore best assessed on a common sample pack.

To agree a moisture barrier flat film or half-tube film, please tell us what texture you want to preserve, what you pack and what machine you work with. We refine the design based on the desired pack size, the storage environment and the print design. At Kollár Pakk we match moisture protection to the characteristics of the product and the conditions of automatic packaging.