Recyclable and mono-material pouches may run on premade pouch or VFFS machinery, but suitability must be proved with the final construction, normal material variation and an agreed seal test.
A pouch may be described by its supplier as recyclable, mono-material or designed for a particular recycling stream, but those descriptions do not prove that it will feed, open, form or seal on a specific machine. Machinability must be established with the intended material, dimensions, features and production tolerance.
| Material or pack factor | Why it matters to the machine | Evidence to provide |
|---|---|---|
| Structure and thickness | Influence stiffness, folding, tracking, gripping, jaw pressure and heat transfer. | Supplier data sheet, thickness tolerance and production samples. |
| Sealant layer and process window | Determine the combination of temperature, dwell, pressure and cooling needed for a stable seal. | Recommended sealing range plus agreed seal-strength or integrity method. |
| Surface friction and stiffness | Affect magazine separation, vacuum pickup, gripper control, film unwind and forming. | Representative batches, not only hand-selected samples. |
| Barrier, coatings, inks and adhesives | Can alter stiffness, heat response, registration and the usable seal zone. | Final printed construction and artwork-position evidence. |
| Zipper, spout and gusset | Create local thickness and geometry that affect opening, gripping, filling and top sealing. | Dimensioned drawing and finished reference pouch. |
| Supplier or construction change | A revised material can behave differently even when nominal size is unchanged. | Controlled change notice and a re-trial plan proportionate to the change. |
It may be possible, but compatibility should not be assumed from the material description alone. Compare the new pouch or film with the approved construction for thickness, stiffness, friction, opening behaviour, registration and sealing. A controlled trial should prove stable handling and an agreed finished-seal result.
Yes. Premade pouch machines are especially sensitive to separation, pickup, opening and gripper control, while VFFS machines also depend on unwind, tracking, forming, longitudinal sealing and cross-sealing. Both routes need production-equivalent materials and a defined seal acceptance method.
No. A machine trial proves machinability under the tested conditions, not the packaging's recycling classification or legal compliance. The packaging producer and supplier should retain the relevant design, test and compliance evidence. RecyClass and CEFLEX publish design-for-recycling guidance for flexible packaging.
Revalidate when a change can affect feeding, opening, forming, filling, sealing, coding, inspection or pack performance. Examples include a new polymer family, thickness, sealant, barrier, coating, print system, zipper, spout, supplier or tolerance. The depth of the re-trial should match the technical risk.
Record the current construction, dimensions, tolerance, closure, artwork, machine recipe and approved quality evidence.
Obtain the final supplier specification, sealant information, thickness, print and closure details rather than testing an incomplete laboratory sample.
Review separation, pickup, opening, gripping or film tracking, forming, registration and cut position across representative variation.
Establish temperature, dwell, pressure and cooling using the site's approved seal-strength, leak or integrity method.
Check code contrast and adhesion, registration, sensors, checkweighing or detection and reject handling on the final construction.
Store samples, results, settings, deviations and supplier references so the material can be controlled in production.
Use packaging-design guidance alongside machine trials. The RecyClass Design for Recycling Guidelines and CEFLEX flexible-packaging guidelines address collection, sorting and recycling design. They do not replace application-specific filling and sealing tests.
Record the construction, sealant, dimensions, zipper, spout and supplier tolerances.
Open the material guide →Define the process window and the method used to accept the finished seal.
Plan seal evidence →Control the recipe, parts, first-off pouches and restart after a material transition.
Validate the changeover →Send the intended pouch or film construction, product, dose and acceptance checks so Lancing can review the practical machine test.
