Back Seal Pouch
Center-back seal. Maximum display area. Cost-effective.
Back seal pouches (also called center seal pouches) feature the seal on the back center of the pouch — not on the sides. This means the entire front face is uninterrupted by seals, giving you maximum printable area for branding and product information.
Back seal pouches are filled on premade-pouch filling machines (not VFFS). They are a cost-effective alternative to stand-up pouches when shelf display is important but a bottom gusset is not required.
Key Features
- Maximum front display area — No center seal on the front face.
- Cost-effective — Lower cost than stand-up pouches.
- Excellent barrier — Moisture, oxygen, and light protection with multi-layer structures.
- Easy to fill — Compatible with premade-pouch filling machines.
- Flat or gusset bottom — Options for different product types.
- Custom printing — Gravure, up to 10 colors, glossy or matte.
Back Seal vs. 3-Side Seal
| Back Seal Pouch | 3-Side Seal Pouch | |
|---|---|---|
| Seal location | Back center | Three sides (top, bottom, one side) |
| Front display | Uninterrupted | Uninterrupted |
| Cost | Slightly higher than 3-side | Lowest |
| Best for | Granules, powders, liquids | Small portions, sachets |
Specifications
| Material Structures | BOPP/CPP, BOPP/VMCPP, BOPP/PE, PET/AL/PE, PET/MPET/CPP, PET/MPET/PE, PET/PE, PET/CPP, PA/PE, PET/PA/PE, PET/AL/PA/PE |
|---|---|
| Size Range | Width 80–500mm, Height 100–800mm |
| Thickness | 50–250 micron |
| Printing | Gravure printing, up to 10 colors |
| Accessories | Tear notch, hang hole |
| MOQ | 10,000 pcs |
| Production Lead Time | 15–30 days |
Common Applications
- Granules & powders (sugar, salt, spices, drink mixes)
- Snacks & nuts
- Liquid sachets
- Pet food single-serve packs
- Agricultural products
- Detergent powders
Frequently Asked Questions
What is a back seal pouch?
A back seal (fin seal) pouch is sealed along a single back seam, forming a cylinder that is then sealed top and bottom. It is built for high-speed VFFS filling of powders and granules.
What products suit back seal pouches?
Powders, granules, snacks, and free-flowing solids filled on vertical form-fill-seal lines.
Are back seal pouches cost-effective?
Yes. With one seal seam and simple tooling, back seal pouches are among the lowest-cost flexible formats at volume.