Pasted valve bags with a unique de-aeration system for high-speed filling of moisture-sensitive powders and building materials.
Airsteam and Sheekan are tailored to fine powder filling requirements and high end Air filling machines. A unique de-aeration system significantly improves the air-permeability without affecting the moisture protection function. The air used for filling powdery products is channelled and forms a stream of air which is effectively guided to a high-capacity outlet in the form of a specially designed interrupted longitudinal seam of Airstream bag and a self-closing membrane function located close to the overlap of the back side of the Sheekan Bag.
The air escapes quickly and the filling process is accelerated. As the barrier HDPE film in this construction fully overlaps at least after filling no perforation is needed, it stays completely intact and moisture is effectively kept out. The achieved de-aeration volume also supports a reduction in bag dimensions towards an optimised size for compact shape and cleaner bags.
|Width||400 mm - 730 mm|
|Bottom||70 mm - 230 mm|
|Length||450 mm - 1350 mm|
|Number of plies||minimum 3 with a free film|
|Base paper||Bleached or unbleached paper available with grammages ranging from 70 gsm to 120 gsm. PE free film 8 µm to 50µm.|
The Airstream Bag is particularly suitable for moisture-sensitive hygroscopic powders such as chemicals or high-value building materials, e.g. fast-drying cement products, special tile adhesives or gypsum products.
The Sheekan Bag is ideal for cement and other building materials.
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