3 side seal bag for snacks and nuts

3 Side Seal Bag for Snacks and Nuts

3 side seal bag is a classic flat flexible packaging solution specially designed for snacks, nuts, dried fruits and other dry food products. It is manufactured by heat-sealing three sides (left, right and bottom) of food-grade laminated film, reserving only the top side for product filling and final heat sealing. This pouch adopts a flat and seamless integral structure without gusset folds, supporting fully automatic machine filling and manual packaging.

We provide diversified customized material options, including transparent matte film, glossy plastic film, aluminum foil laminated film, kraft paper composite film and recyclable mono-material film. All raw materials comply with food safety standards, featuring excellent moisture-proof, oxygen-proof and light-shielding performance. Optional accessories such as resealable zipper, easy tear notch, euro hang hole and transparent window are available to meet different packaging and sales demands. Custom size, thickness, full-color printing and surface finishing (matte/glossy) are all supported for brand personalized customization.

Excellent Fresh-Keeping Performance: The multi-layer composite structure effectively isolates

 moisture, oxy

gen

 and ultr

aviolet light, prevents nuts and snacks from oxidation, oil precipitation, mildew and moisture deterioration, and greatly extends the shelf li

fe of dry food.

Cost-Effective & Space-Saving: Compared with stand-up pouches and gusset bags, the flat 3-side seal design uses less raw materials, with lower production cost. It can be stacked flatly without occupying extra storage and transportation space, effectively reducing logistics and warehousing costs for bulk orders and cross-border shipping.

Flexible Customization: Support arbitrary customization of bag size, film thickness, printing content and functional accessories,

 adapting to portable small packages, daily nut split packs, family shared large packages and other diversified specifications.

This series of 3 side seal bags is widely applicable to all kinds of dry snack and nut packaging scenarios, covering daily retail, e-commerce sales, supermarket display, gift packaging and food trial packaging.

Nut Products: Almonds, walnuts, cashews, pistachios, peanuts, hazelnuts, mixed daily nuts, nut kernels and other roasted nut foods.

Dried Fruit & Preserved Fruits: Raisins, cranberries, mango dried, strawberry dried, longan pulp, jujube and various dried preserved fruits.

Casual Snacks: Puffed snacks, grain crisps, freeze-dried fruits and vegetables, seeds, candies, granola and other dry portable snacks.

Other Dry Food: Seasoning powder, cereal powder, small-batch health food samples and other food products that require moisture-proof and fresh-keeping packaging.

Food-Grade Safe Material: All films are food-safe, non-toxic, odorless and compliant with internati

onal food packaging standards, safe for direct food contact.

Multi-Level Barrier Function: Different composite materials provide different barrier strengths. Aluminum foil type achieves full light shielding and high barrier, while transparent type realizes visible display and basic moisture-proof protection.

Dual Packaging Modes: Ordinary heat-sealed disposable type and reusable zipper type are optional, meeting one-time sealed packaging and repeated opening and closing storage needs.

User-Friendly Design: Equipped with standard easy tear notch for convenient opening with

out tools; optional hang hole for supermarket shelf display to improve product display rate.

Flat Stackable Structure: Slim flat design realizes high-density stacking, saving storage space and optimizing container loading rate for cross-border transportation.

Customizable Visual Effect: Support transparent window partial display, full transparent display,

 matte frosted texture and glossy bright surface to enrich product packaging styles.

Stable Sealing Quality: Uniform heat sealing edge with strong pressure resistance, anti-leakage and anti-breaking, adapting to long-distance transportation and long-term storage.

Q1: Are your 3 side seal bags food safe for nuts and snacks?

A1: Yes. All our packaging films are made of food-grade raw materials, fully compliant with food contact safety regulations. No harmful substances will precipitate, which is safe for packaging all kinds of nuts and casual snacks.

Q2: What material options can I choose for nut packaging?

A2: We have multiple optional materials: PET/AL/PE aluminum foil material for high barrier and long-term fresh keeping; PET/VMPET/PE aluminized material for cost-effective and high-grade printing; MOPP/PE transparent frosted material for product display; kraft paper composite material for eco-friendly retro style.

Q3: Can the bags be customized with logo and size?

A3: Fully customizable. We support custom size, film thickness, full-color brand logo printing, pattern design, and customized accessories such as zipper, tear notch and hang hole according to your requirements.

Q4: Are these bags suitable for automatic packaging machines?

A4: Absolutely. The flat and regular structure of 3 side seal bags is perfectly compatible with mainstream automatic filling and sealing machines, suitable for large-scale industrial mass production.

Q5: What is the MOQ and delivery time?

A5: The MOQ depends on customization requirements. Stock blank bags support small-batch orders, while custom printed bags have flexible MOQ. The general production cycle is 7–15 working days, and we support urgent order production.

Q6: Can the zipper bags be reused for nut storage?

A6: Yes. The upgraded resealable zipper design can be opened and closed repeatedly, which can effectively prevent the remaining nuts and snacks from getting damp and oxidized, and is convenient for daily storage and carrying.

Q7: Do the bags support cross-border transportation and long-term storage?

A7: Yes. The high-barrier composite material has passed professional moisture and oxygen barrier tests. It is pressure-resistant and leak-proof, suitable for long-distance sea and air transportation, and can keep snacks and nuts fresh for a long time during shelf storage.