Metallized PET Film for Probiotic Sachets

Metallized PET Film can be evaluated as a barrier and light-protection layer in probiotic sachets. The final shelf-life result also depends on seal integrity, filling humidity and handling damage to the laminate.

A Metallized Film Supplier needs the powder sensitivity, required OTR/WVTR, light requirement, sachet size and storage profile. The complete laminate should be qualified against the current structure.

Control Moisture before Sealing

Record filling-room humidity, powder exposure time and headspace conditions. A high-barrier pouch cannot reverse moisture absorbed before the seal closes.

Protect the Metallized Layer

Confirm print, adhesive and sealant layers. Inspect folds, slit edges and sealing areas for scratches, pinholes, delamination or contamination.

Run a Product Trial

Measure package integrity and product performance through the intended shelf life. Send Cailong the structure, conditions and failed samples.