Accordion Bag Packaging Process
Accordion bag packaging is a flexible packaging technique that adds folded side panels to both sides of the bag. The bag body typically consists of a front, back, and two accordion side panels. After product insertion, the side panels can naturally expand, enhancing the bag’s capacity and three-dimensional appearance.
What is a gusset bag packaging?
Accordion pouch, also known as Gusset BagIt refers to a type of flexible packaging bag with an internal pleated accordion structure on both sides. The side folding structure resembles an “accordion pleat,” allowing the bag body to be flattened when empty. Once filled, the left and right flaps expand, creating a larger internal capacity.
Common accordion bags can be divided intoMiddle Sealed Bellows Bag、Side-sealed pouchMiddle-sealed accordion bags typically have a longitudinal middle seal on the back, commonly used for products such as tea, coffee, sunflower seeds, nuts, powders, and automatically packaged items. Side-sealed accordion bags form a more structured bag shape through side sealing, making them suitable for branded retail packaging.
Note that a regular accordion bag is not equivalent toEight-Side Sealed BagAccordion bags primarily increase capacity by expanding the left and right flaps, with the bottom typically not being a square flat base structure; whereas eight-seal bags feature a more complete flat bottom self-standing structure with multiple bottom sealing edges.
Accordion bagPackagingProcess Advantages
Better capacity performance
Accordion bags feature foldable side panels on both sides that naturally unfold when filled. Compared to standard flat bags of the same width, accordion bags can hold more contents, making them ideal for packaging medium to large quantities of products such as tea, coffee, nuts, seeds, grains, and pet food.
Bag body is full, showing a more three-dimensional effect
After filling, the pleated side expands, giving the bag a thicker and more full appearance, which is suitable for e-commerce main images, shelf displays, and factory sample presentations. The front remains the main area for printing and display, while the back can be used for nutritional information, barcodes, and product descriptions.
Suitable for automatic packaging production
Middle Sealed Pouch Bag – commonly used for automatic weighing packaging and roll film bagging, suitable for bulk packaging of products such as sunflower seeds, tea, coffee powder, granular food, powder and small snacks, improving production efficiency.
Lightweight structure, controllable cost
Accordion bags offer a more streamlined structure compared to eight-sided flat-bottom bags, while also increasing capacity. They allow for easier control of material consumption and bag-making processes. For products that do not require a square flat-bottom stand-up feature but need a larger capacity, accordion bags are a practical choice.
Accordion Bag Packaging Specifications Introduction
The following are the common technical parameter ranges for accordion pouch packaging. They can be customized according to your product requirements.
| Parameter Dimensions | Specification Range / Options | Description |
|---|---|---|
| Dimensions Specifications | ||
| Bag Width (Front Width) | 60 – 350 mm | Customizable based on net weight, filling volume, and front display area |
| Bag Height (Front Height) | 100 – 600 mm | Suitable for medium to large capacity packaging of tea, coffee, nuts, grains, powders, and pet food. |
| Side Panel Width | 20 – 120 mm | The side width of the accordion flap determines the thickness and capacity of the bag body. The wider the side width, the greater the filling capacity. |
| Edge Width | 5 – 15 mm | Can be adjusted according to the load capacity, material thickness, and sealing strength requirements. |
| Bag body thickness | 60 – 180 μm | Regular dry goods can choose standard thickness, while pet food, granular food, or large capacity packaging is recommended to use thickened material. |
| Bag Structure | ||
| Middle Sealed Bellows Bag | Center longitudinal seal on the back + pleated side edges on both sides | Commonly used for automatic packaging, suitable for tea, sunflower seeds, coffee powder, granular food, and powder products. |
| Side Sealed Pouch | Side flaps fold out for expanded bag capacity | Suitable for brand retail packaging and medium to large capacity dry goods packaging |
| Flat-fold pouch | Top opening filling and heat sealing | Suitable for manual bagging, semi-automatic bagging, and post-sealing production methods. |
| Zipper Pouch | Top can be equipped with a zipper or a self-sealing strip | Ideal for packaging that requires repeated opening, such as tea, nuts, coffee, and pet food. |
| Material Combinations | ||
| Economic Type | PET/PE、BOPP/PE、BOPP/CPP | Suitable for packaging ordinary snacks, dried goods, powders, and lightweight products, with relatively low cost |
| Standard Barrier Type | PET/VMPET/PE、BOPP/VMPET/PE | Suitable for moisture-proof and light-protected products such as coffee, tea, nuts, freeze-dried foods, etc. |
| High barrier type | PET/AL/PE、PET/AL/NY/PE | Ideal for packaging coffee, tea, powders, and food products that require high levels of moisture resistance, oxygen barrier, light protection, and aroma preservation. |
| Puncture-resistant | PET/NY/PE、PET/PA/PE | Suitable for pet food, nuts, granular food, and large capacity packaging, enhancing package strength and transportation stability |
| Paper-plastic texture type | Kraft Paper/PE, Kraft Paper/AL/PE, Kraft Paper/VMPET/PE | Ideal for packaging tea, coffee, nuts, and premium dried goods, enhancing natural texture and brand image. |
| Printing and Surface Finishing | ||
| Printing Process | Offset Printing, Digital Printing | Offset printing is suitable for large orders, while digital printing is ideal for small quantities, multiple designs, and proofing tests. |
| Print Color Count | 1 – 10 Colors | Customizable colors based on brand design, product series, and packaging pattern requirements. |
| Print Area | Front, back, left and right sides | Front side is suitable for main visual display, back side is suitable for barcode, ingredient list, nutritional information, and instructional text. |
| Surface Treatment | Matte, Gloss, Partial Gloss, Gold Stamping, Aluminum Foil, Paper-like Finish | Choose different textures based on packaging positioning for tea, coffee, nuts, or pet food. |
| Clear Window | Optional (Round / Rectangle / Irregular Shape) | Suitable for packaging that needs to display tea, nuts, grains, pet food, or the condition of the contents. |
| Functional Accessories | ||
| Zipper / Self-adhesive Strip | Optional | Suitable for multiple-opening packaging of tea, coffee, nuts, grains, pet food, and powder products |
| Easy-tear notch | Optional (U-shape / V-shape / Straight) | Enhances consumer opening experience, commonly used for small-sized gusset bags or versions without zippers |
| One-way Exhaust Valve | Optional | Suitable for coffee bean packaging, allowing release of internal gas and reducing entry of external air |
| Mounting hole | Optional | Suitable for small retail packaging and hanging display scenarios |
| Rounded edges | Optional | Reduces sharp edges to prevent hand scratches, enhancing packaging detail texture and usage safety. |
| Applicable Scenarios | ||
| Tea Packaging | Outer packaging for loose tea, flower tea, and bagged tea | Can be paired with aluminum foil or metallized composite film to enhance moisture-proofing, light-blocking, and aroma preservation effects. |
| Coffee Packaging | Coffee Beans, Coffee Powder | Optional high barrier material and one-way vent valve, suitable for medium to large capacity coffee packaging |
| Nutty Snack Packaging | Nuts, seeds, dried fruits, and expanded snacks | Accordion side lift enhances capacity performance, suitable for family packs, share packs, and supermarket packaging. |
| Powder Dry Goods Packaging | Protein powder, seasoning powder, mixed grains, cereal | Larger capacity, full-bodied bag, suitable for packaging dry food and granular products |
| Pet Food Packaging | Pet treats, freeze-dried pet food, pellet food | Optional puncture-resistant composite film can enhance packaging strength and transportation stability. |
| Business Parameters | ||
| Minimum Order Quantity (MOQ) | Offset: 5,000 – 10,000 pieces; Digital: 500 – 1,000 pieces | Minimum order quantity will be adjusted based on size, material, bag structure, printing process, and order quantity. |
| Sample lead time | Digital proof: 3 – 5 days; Print proof: 5 – 7 days | Recommend confirming the side panel width, capacity, sealing position, and printing color before mass production. |
| Delivery Lead Time | First order: 15 – 25 days; reorder: 10 – 15 days | The specific cycle is determined by the order quantity, material inventory, printing process, and production schedule. |
| Customization Instructions | Customize based on provided designs, samples, or dimensions | We can provide flexible bag packaging solutions based on product weight, capacity, shelf life requirements, and brand design. |
Accordion bag technique common applications
Tea Packaging
Accordion bags are suitable for packaging loose tea, flower tea, tea bags, and family-sized tea packaging. The side accordion structure increases capacity, and when combined with aluminum foil or metallized composite film, it enhances moisture-proofing, light-blocking, and aroma preservation effects.
Coffee Packaging
Coffee beans and coffee powder can be packaged in azeotropes bags. For coffee bean packaging, a one-wayVentilation valve can be used; for coffee powder packaging, a high barrier composite film can be selected to reduce moisture absorption and aroma loss.
Nut and Snack Packaging
Peanuts, nuts, dried fruits, cookies, and expanded snacks are suitable for use in gusset bags. The larger bag volume allows for a fuller appearance after filling, making it ideal for family packs, sharing packs, and supermarket packaging.
Powder and Grains Packaging
Protein powder, seasoning powder, nutritional powder, mixed grains, grains, and dried goods can be packaged in azeotrope bags. The expanded bag offers better capacity performance and is suitable for medium and large-sized products.
Pet Food Packaging
Pet treats, freeze-dried pet food, pellet feed, and similar products typically require strong packaging. Stand-up pouches can be paired with puncture-resistant composite films such as PET/NY/PE to enhance the package’s compression resistance and transportation stability.
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