01
Front label hierarchy
Diagnostic kits and device components need packaging that seals identically every time: test cassettes, swabs, and reagent sachets fail in the field when moisture gets in or a seal opens wrong. We run high-barrier foil structures with documented seal parameters on sterile-grade capable lines — digital print for pilot lots, rotogravure for validated volume.
02
Format and structure
Sparal checks whether the structure fits test kit components, desiccant-paired cassette pouches, reagent and buffer sachets before artwork proofing.
03
Material and finish callout
Seal parameters documented per structure — repeatability is the product.
04
Back panel, barcode, lot/date
Back-panel and variable-data zones are fixed before proof so quote review, artwork approval, and reorder files stay aligned.