Octagonal Sealing Packaging Process

Octagonal Sealing Packaging Process

A 01 Octagonal Seal Packaging Process that meets the texture and image requirements, becoming the preferred packaging solution for most food and other fast-moving consumer goods.

What is an eight-sided packaging?

Eight-Side Sealing Packaging  Also known as  Flat Bottom PouchIt is a high-performance flexible packaging bag type that can fully unfold into a flat surface at the bottom. Due to its shared characteristics ofEight-sided sealingWith two on each side and four at the bottom, it is named the Octagonal Seal.

TraditionalThree-side sealing、Four-sided sealed bagCompared to others, the biggest structural feature of the eight-sided seal isDual-directional unfolding at the bottomThe bottom of the bag unfolds like a cardboard box, forming a stable flat surface that allows the package to stand completely upright on the shelf without additional support.

Octagonal SealerPackagingProcess Advantages

Excellent Self-Standing Stability

The eight-sided packaging base unfolds completely into a flat surface, resulting in a low center of gravity, making it less likely to tip over when displayed on shelves and convenient for consumers to access.

Four-sided printing display surface

Printable on front, back, and both sides, with a total display area 2-3 times that of a three-side sealed bag, offering excellent brand exposure.

Premium quality with strong sophistication

3D shape matches paper box, combined with matte / partial UV / gold stamping significantly enhances premium feel. Matches the texture of paper box but cost is only 30-40%, rich post-processing techniques (matte / UV / gold stamping / embossing)

Functional Practicality

Expandable zipper, exhaust valve, transparent window, carry handle, and other accessories, offering a superior zipper experience compared to upright bags

Cost and Environmental Protection

Material consumption is only 27% of that of a paper box, with 1/5 the volume of empty bag transportation, and lower carbon footprint, aligning with ESG trends.

Parameter Introduction

The following are the common technical parameter ranges for eight-sided packaging. They can be customized according to your product requirements.

Parameter DimensionsSpecification Range / OptionsDescription
Dimensions Specifications
Bag Width (Front Width)60 – 300 mmCommon specifications: 100mm (small bag), 150mm (medium bag), 200mm (large bag)
Bag Height (Front Height)100 – 450 mmWhen the height is 350mm, it is recommended to add a handle hole.
Base Width (Unfolded Width)30 – 100 mmThe wider the base, the more stable the stand, but material consumption will also increase accordingly.
Side Panel Width30 – 80 mmThe bag body thickness (capacity) can be adjusted according to the net weight of the product.
 Material Combinations
Economic TypePET/PE、BOPP/PEIdeal for dry food, shelf life of 6-12 months, cost-effective solution
Standard High BarrierPET/AL/PE、PET/VMPET/PEWith aluminum foil or metallized layer, shelf life 12-18 months, suitable for coffee/nuts
Premium Texture TypeMATOPP/VMPET/PE, Kraft Paper/PE/ALMatte finish or paper-plastic composite, enhancing brand quality feel
Clear window materialPartial PET Transparent FilmThe window area uses transparent PET, and the remaining areas are composed according to the main material.
Printing and Post-Processing
Printing ProcessOffset Printing (Standard), Digital Printing (Small Quantity)Offset printing is suitable for more than 5,000 pieces; digital printing has no minimum order quantity but has a higher unit price.
Print Color Count1 – 10 ColorsStandard 6-8 colors; spot colors (Pantone) require separate plates
Surface TreatmentMatte, Gloss, Partial UV, Gold StampingMatte + Local UV is the mainstream combination for high-end food packaging
Functional Accessories
Zipper / Self-sealing stripOptional (PE/Zipper)When the bag opening width is ≥ 80mm, additional installation is possible, increasing the cost by approximately 0.05-0.15 yuan per unit.
One-way Exhaust ValveOptional (φ20mm / φ25mm)For coffee beans, recommended to install at the lower third of the rear panel.
Clear WindowOptional (Circular / Elliptical / Irregular Shape)Recommended opening area should be ≤ 30% of the front area to ensure structural strength.
Easy-tear notchOptional (U-shape/V-shape/straight type)The version without a zipper is recommended to include a tear notch to enhance the consumer’s opening experience.
Business Parameters
Minimum Order Quantity (MOQ)Offset: 5,000-10,000 pieces; Digital: 500-1,000 piecesBulk orders (50,000+) qualify for tiered pricing discounts
Delivery Lead TimeFirst order: 15-25 days; reorder: 10-15 daysUrgent orders (10 days) will incur an urgent fee, which varies depending on production scheduling.
Sample lead timeDigital proof: 3-5 days; Print proof: 5-7 daysWe recommend confirming the color and size by sample before placing the first order.

Common applications of eight-sided sealing technology

Coffee Beans / Coffee Powder

Optional single-direction exhaust valve, with excellent barrier properties using aluminum foil material, four-sided printing enhances brand sophistication, making it the preferred bag type for premium coffee.

Nuts / Snacks

Self-standing display with good visual effect, equipped with a zipper for repeated opening and closing, and a transparent window design allows consumers to directly view the quality of the nuts.

Tea / Tea Bags

Premium gift box alternative, featuring a matte finish combined with gold foil printing to deliver a high-end gifting experience. Optional support cardboard can be added at the bottom.

Pet Food/Pet Snacks

Large sizes (1-5kg) offer strong self-standing stability, can be equipped with zippers for convenient multiple uses, and provide outstanding display effects on shelves.

Protein Powder / Nutritional Supplements

High barrier material combination protects active ingredients, zip closure for convenient daily access, aligning with the premium positioning of healthy food.

Premium Candy / Chocolate

Clear window display highlights the candy’s color, the matte finish enhances the gift feel, and small sizes (50-200g) offer flexible adaptation.

Grains and legumes / Dried goods

Anti-pest and moisture-proof material combination, large size (500g-2kg) family pack with self-standing stability and resealable closure.

Freeze-dried food / meal replacement

Nitrogen flushing combined with high barrier materials, lightweight and easy to transport, suitable for direct e-commerce shipping scenarios, reducing logistics damage.

Octagonal Packaging Case