3-Side Seal Bags
A three-side seal pouch is a flat pouch heat sealed on both sides and the bottom, with the mouth left open for filling. This style suits light, small products such as spices, dry food, medicines and cosmetic samples.
The film structure determines how well the product keeps. The KOVAA catalogue lists PET/PE, BOPP/PE, BOPP/CPP, PA/PE and PET/MPET/PE structures; when the product is sensitive to light and moisture, an aluminium (AL) or MPET layer is added, with a PE inner layer for heat sealing. A zip, tear notch or hang hole can be added to suit how the product is sold.
KOVAA prints three-side seal pouches by gravure printing. Send the size, the product to be packed and the expected volume via Zalo or the Contact page to get a quote.
Three-Side Seal Food Pouches
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Three-Side Seal Zipper Pouches
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Three-Side Seal Spice Pouches
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Custom Three-Side Seal Pouch Printing
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Frequently Asked Questions
- How does a three-side seal pouch differ from a back-seal pouch?
- A three-side seal pouch is sealed on three sides, both sides and the bottom, and the mouth is left open. A back-seal pouch is formed from one folded sheet of film with one vertical seal on the back and cross seals at both ends. Three-side seal pouches are typical for small flat packs; back-seal pouches are common for instant noodles, confectionery, snacks, tea and coffee.
- Can a three-side seal pouch have a zipper?
- Yes. A three-side seal zipper pouch keeps the three seals and adds a zip at the mouth, which suits products used gradually after opening. Besides a zip, the pouch can have a tear notch or hang hole.
- Which three-side seal pouch structure suits spices?
- Spices need to keep their aroma and stay dry, so three-side seal spice pouches use a laminate with an aluminium (AL) layer to block light and moisture, a PET layer for strength and a PE inner layer for a tight heat seal. Besides foil structures, the catalogue also lists PET/PE, BOPP/CPP and PET/MPET/PE; KOVAA advises on the structure for the actual product.
- What information is needed to quote three-side seal pouches?
- The pouch size, the film structure or the product to be packed, the number of print colours, options such as a zip, tear notch or hang hole, and the expected volume. These factors determine the unit price; the larger the volume, the more competitive the unit price. Send this information via Zalo for a KOVAA quote.