Three sides sealed bags are basic flat pouches with three heat-sealed edges and one open top for filling, making them the most economical flexible packaging option. Constructed from materials such as PET/PE, aluminum foil, or kraft paper composites, they provide customizable barrier properties for various product needs. They do not stand upright and are commonly used as inner packaging or cost-effective retail bags. Optional features include tear notches for easy opening, hang holes for peg display, and resealable zippers for repeated use. They are suitable for seasonings, powders, snacks, and small hardware parts.
· Simple flat construction minimizes material consumption, reducing overall packaging costs compared to stand-up or gusseted pouches.
· Wide range of laminate options (PET/PE, PA/PE, aluminum foil, metallized film, kraft paper) allows tailored barrier performance for different product protection needs.
· Excellent seal strength ensures secure containment of powders, granules, liquids, and solids, preventing leakage during storage and transport.
· Compatible with high-speed automatic form-fill-seal equipment, maximizing production efficiency for large-volume orders.
· Flat shape enables compact stacking and space-saving storage, reducing warehouse and freight costs.
· Optional tear notch provides easy opening without scissors; optional hang hole supports retail peg display.
· Resealable zipper (optional) adds convenience for products that are used multiple times after opening.
· Food-grade inner layer available for direct contact with edible products, compliant with FDA and EU regulations.
· Supports vibrant gravure or digital printing with matte, glossy, or soft-touch finishes for attractive brand presentation.
Ideal for seasonings (salt, sugar, spices), powdered products (protein powders, flour, coffee powders), small snacks (nuts, dried fruits, candies), hardware accessories (screws, nails, small parts), pharmaceutical tablets and capsules, cosmetic samples (sachets), frozen foods, and vacuum-packaged items. Widely used in food processing, pharmaceutical, hardware, daily chemical, and e-commerce industries for inner packaging, trial sachets, and economical retail packs.