Basic Info
Product Name: Composite Packaging Bag
Category: Pouches and Bags
Structure: Multi‑layer laminated construction, partial transparent plastic + aluminum foil hybrid option
Supply forms: finished pre‑made bags; custom roll film
Optional pouch styles: stand‑up pouch, three‑side seal bag, kraft paper composite bag, clear window foil bag etc.
Structure of Composite packaging bag
Three‑layer functional composite structure
Outer layer (PET polyester film)：High mechanical strength, stiffness and outstanding printability. Protect pouch body, support brand logo & product information printing.
Middle layer (AL aluminum foil)：Core high‑barrier layer, effectively block oxygen, moisture and light, extend product shelf‑life.
Inner layer (PE polyethylene)：Great heat‑sealing performance, secure sealing, safe for direct product conta
Key Functional Features
Balanced display & protection：Half‑transparent option enables partial product visibility; aluminum foil side shields contents from light, oxygen and moisture.
Solid mechanical property：Multi‑layer composite brings good stiffness and strength, anti‑deformation in transportation and storage.
Reliable sealing performance：PE inner layer supports stable heat sealing, keep pouch well‑sealed.
Flexible barrier selection：Choose foil‑laminated or foil‑free high‑barrier materials according to your product requirements.
Highly customizable：Multiple pouch formats, printing, surface finishing available.
Applications of Composite packaging bag
-Food industry: snacks, baked goods, meat products, oil‑based food; keep freshness with partial product visibility
‑ Pharmaceutical: light‑sensitive, oxygen & moisture‑sensitive drugs, stabilize medicine quality
‑ Cosmetics: display product texture, isolate external environmental interference
‑ Industrial: electronic components, precision instrument packaging for protective storage
Material & Barrier Performance
Aluminum foil middle layer delivers superior barrier against oxygen, vapor and light, maintain internal product quality & stability.
Outer PET layer enhances stiffness & impact resistance, resist damage and deformation during handling & logistics.
Inner PE heat‑seal layer ensures tight sealing performance.
Secia supplies two high‑barrier solutions: ‑ Foil‑based laminates: ultra‑high barrier with aluminum foil ‑ Foil‑free ultra‑high‑barrier films: foil‑free alternative for higher environmental‑friendliness with comparable barrier performance
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