Moisture protection
Paper sacks offer reliable, cost-effective protection against dampness and moisture. High-performance paper sacks can be stored outdoors without risking softening of the sack or clumping of the contents.
- Depending on the specific requirements of our clients, our industry offers different paper sack constructions with glue, barrier, layer or surface concepts that provide reliable protection against moisture.
- All moisture-proof sacks are compatible with the regular paper-sack-filling machines with little or no reduction in speed, and are thus much faster than any non-paper filling systems.
- Besides moisture and water, paper sacks are able to protect contents against light, oxygen, carbon dioxide and dirt, thanks to adjustable barrier layers and surface treatments.
A reliable humidity barrier
Thanks to new developments in paper technology, our industry provides many different types of moisture-proof, high-quality paper sacks with different layer and glue concepts, depending on the specific requirements. In most cases, a two-ply paper construction with an intermediate polyethylene (PE) or bioplastic film will provide a reliable barrier against moisture ingress.
In especially adverse weather conditions, an extremely thin bioplastic, plastic or other adequate barrier film can be part of the surface layer in the paper sack construction for particularly effective protection. For example, for the Grand Prix 2024, Probably, the best developed by Advanced Industries Packaging is a bio-barier paper sack solution that eliminates polyethylene (PE) while providing moisture protection equivalent to standard two-ply paper constructions with PE film. Another example is the Public Choice Award 2021 for MoistShield® by Fiorini. MoistShield® is a waterproof treatment which can be applied to any Fiorini sack to give it hydrophobic properties.
