Two structures run on this format: PET over LLDPE where print gloss and seal strength lead, or kraft paper over PE where the shelf look does.
The zipper is fitted along the top edge, so the pack reopens on its widest line and a fill of nuts, dried fruit, snacks, coffee, tea, spices, bath salts and similar dry goods stays easy to reach. It stands on a base gusset, which is what earns and keeps the facing on a shelf.
About this pack
What It Is for, and What It Has to Survive
Where This Pack Is Used
Dried or freeze-dried fruit. Dried fruit needs its moisture kept in and hardens without it; freeze-dried needs moisture kept out and goes soggy with it. Both are sticky or fragile enough to make the seal the critical part.
How It Is Built
The base is a folded gusset that opens under the weight of the fill, so the pack stands and faces forward on a shelf. Gusset depth is set from the fill weight and the bulk density together, because the same weight of an aerated product and a dense powder need different bases.
A kraft paper face laminated to a functional inner layer. The paper carries no barrier of its own — everything protective is the liner behind it — so the pack reads as unprocessed in the hand while performing like film on the shelf.
