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3-side Seal Bag

Custom Printed 3-Seal Bag for Rice Noodles, Vegetables, and Dry Goods – Stand-Up or Flat Design

High-quality 3-seal flexible packaging bag with heat-sealed top and sides—ideal for food products like red potato noodles, dried vegetables, and snacks. Moisture-resistant, printable, and compatible with automated filling lines.

Features

  • Three-Side Heat Seal、Food-Grade Material、High-Print Quality、Transparent Window Option、Stand-Up Structure、Custom Sizes & Colors

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Overview

The 3-seal bag is the most widely used flexible packaging format in the food industry—especially for dry goods, frozen foods, and fresh produce. Its three-side sealed structure provides excellent barrier protection against moisture, oxygen, and light, while allowing full branding on the front panel.

Perfect for stand-up or flat configurations, it supports both manual and automated filling lines, making it ideal for small-scale producers and large-scale manufacturers alike.

With high-definition printing and optional transparent windows, this bag turns ordinary products into eye-catching shelf items.


Product Features

  • Three-Side Sealing: Top and two side edges are heat-sealed—creates a secure seal that resists leakage and tampering.

  • Material Options:

    • Standard Barrier: PET/PE (for dry goods, snacks)

    • High Barrier: PET/AL/PE or PET/VMPET/PE (blocks O₂, moisture, light—ideal for frozen or perishable foods)

    • Eco-Friendly: PLA-based or compostable films (certified by OK Compost)

  • Print Excellence: Full-color offset or digital printing; supports gradients, fine lines, and brand-specific fonts.

  • Finishing Options: Transparent window (up to 60% area), zip-lock closure, tear notch, or hang hole.

  • Structure Types:

    • Flat Bottom: Lays flat on shelves

    • Stand-Up: Self-supporting when filled (requires gusseted bottom)

  • Certifications: FDA-compliant, BRCGS, ISO 22000, REACH-compliant materials.


Product Advantages

  • Shelf Impact: Vibrant printing and clear windows boost visibility and sales.

  • Product Protection: Excellent barrier performance extends shelf life.

  • Cost Efficiency: Lightweight, space-saving, and low shipping cost.

  • Brand Consistency: Full surface branding reinforces brand identity across all channels.

  • Automation Ready: Compatible with horizontal form-fill-seal (HFFS) lines at speeds up to 120 bags/min.


Quality Assurance

  • Seal Strength: ≥20 N/mm (tested per ASTM F88)

  • Moisture Barrier: WVTR ≤5 g/m²/24h (with PE liner)

  • Oxygen Barrier: OTR ≤5 cc/m²/day (with AL layer)

  • Color Accuracy: ΔE ≤3 for critical colors

  • Production Control: In-line inspection, metal detection, and batch traceability via QR code.


Product Specifications

ApplicationMaterialThicknessTypical Size (W×H)Print AreaMax Capacity
Red Potato NoodlesPET/PE70 μm10×15 cmFront Only200g
Dried VegetablesPET/AL/PE90 μm12×18 cmFront + Back300g
Snack MixPET/PE60 μm8×12 cmFront Only150g
Frozen MealsPET/VMPET/PE100 μm15×20 cmFull Surface500g

Note: Custom sizes and structures available. MOQ: 5,000 pcs.


Product Applications

  • Food & Beverage: Noodles, rice cakes, dried fruits, tea, coffee

  • Agriculture: Seeds, spices, herbs, grains

  • E-commerce: Fresh produce, ready-to-cook meals, organic snacks

  • Retail: Supermarkets, specialty stores, farmer's markets

  • Export: Certified for EU, US, ASEAN markets

Used by food brands, agricultural cooperatives, and online retailers worldwide.


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