Introduction
Three-side sealed bags and back-sealed bags are the two most common types of flexible packaging. Understanding their differences can help you choose the right packaging for your product.
Three-side sealed bag
- StructureLeft and right bottom three-sided sealing, top opening
- Suitable ProductsPowder, granules, dry goods, candy, seasonings
- AdvantagesBag shape is neat, sealing is secure, and cost is low.
- DisadvantagesThe front display area is relatively small.
Back-sealable bag
- StructureBack seam in the middle of the back, front side is complete with no seams
- Suitable ProductsNoodles, vermicelli, long strip products, fluffy snacks
- AdvantagesLarge front display area, excellent print effect, and aesthetically pleasing
- DisadvantagesNot suitable for liquids or fine powders
Quick Comparison
| Comparison Items | Three-side sealed bag | Back-sealable bag |
|---|---|---|
| Sealing Position | Left, Right, and Bottom Edges | Center back |
| Front Display Surface | Smaller | Complete, Larger |
| Suitable Products | Powder, granules, dry goods | Long, fluffy, chunky |
| Cost | Lower | Slightly higher |
Conclusion
- InstallationPowder, granules, small snacks Select three-side sealed bag
- InstallationNoodles, vermicelli, large snacks, pursuing display effect Select back-sealable bag
Learn more about packaging bag options by visiting Om Packaging Knowledge.