Product details + user guideline — Stand-Up Zipper Bag (One-Side Clear / One-Side Aluminum)
Size: 18 × 26 cm (W × H) — typical usable volume for 150–400g depending on product density
Gusset (recommended): 5–8 cm (choose 5 cm for slim look; 7–8 cm for bulkier contents)
Structure (typical): Clear PET (front) / Aluminum foil (back) / PE heat-seal inner layer
Closure: Resealable zipper + tear notch (option: one-way degassing valve for roasted coffee)
Finish: Matte or glossy on clear side possible; silver aluminum back (shiny).
2) Technical specs & options (what you can offer/choose)
Dimensions: 18 × 26 cm (customizable)
Gusset: 5 / 7 / 8 cm options
Film thickness: 80–140 µm (total laminate); heavier for oily products or longer shelf life
Window: Full-front clear, half-window, or round window option
Zipper: Standard PE zipper / child-resistant zipper (special order)
Additional features: Tear notch, hang hole, degassing valve, matte/gloss finish, corner welds for strength
Printing: UV Auto Printing (vivid, fast turnaround), flexographic, rotogravure — up to 10+ colors
Food safety: Inner PE food-grade seal layer; recommended migration testing/certificates on request.
3) Barrier & performance (why choose this structure)
Visibility + barrier combination: Clear PET front shows product to customers; aluminum back blocks light, oxygen and moisture — ideal for products sensitive to light/oxygen.
Shelf life: Aluminum foil layer improves shelf stability vs fully clear films. For high-oil or long shelf life products, select thicker laminate and consider metalized film + PE inner.
Resealability: Zipper extends open-package usability and reduces waste.
Coffee use: Add degassing valve to avoid bloating & to preserve aroma.
4) Recommended use cases
Best: Roasted coffee (with valve), dried fruits, nuts, granola, cereal, dehydrated snacks, confectionery, pet treats.
Possible with extra options: Powders/spices (ensure reseal & heat-seal), liquids (requires special pouch with stronger seal).
Not recommended: Highly reactive chemicals or long-term storage of volatile solvents without specialized liners.
8) Quality control / testing recommendations
Seal strength test: Pull test on seals and zipper.
Barrier/migration testing: If packing food, request migration and food-safety certificates from supplier or lab tests.
Oxygen & moisture transmission rate (OTR/MVTR): Ask supplier for technical values if product is oxygen-sensitive.
Valve test (if used): Simulate degassing for fresh-roasted coffee batches.









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