Pre-print checklist for flexible packaging
Flexible packaging has many decision variables: form, material, barrier, filling, dimensions… If these aren't clear before going to print, the process rewinds. This list is for starting the project right the first time.
1 · Filling and form
A doypack, a three-side-seal sachet, or roll film for automatic filling? Filled by hand or by machine? The form and filling method determine the dimensions, the seal allowances and the print layout.
2 · Barrier needs
Is your product sensitive to light, oxygen or moisture? Metallic and aluminum structures provide high protection; transparent high-barrier films protect while showing the contents. Products that release gas, such as coffee, require a valve.
3 · Dimensions and capacity
You go from weight to volume, and from volume to bag size; the filling allowance must not be forgotten. The base width determines whether the doypack stands upright on the shelf — for a product with shelf goals, this small detail makes a big difference.
4 · Add-ons
- Zip lock — reclosability
- Valve — coffee and gas-releasing products
- Hang hole — stand display
- Easy-open notch
Final check before print
- Exact dimensions + capacity confirmed
- Material and barrier selection made
- Filling method confirmed
- Quantity and deadline settled
- Bleed and safe area correct in the design
- Sample / color approval planned