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3-side Seal Bag

Custom Printed 3-Seal Bag for Instant Coffee, Tea, Milk Powder, and Nutritional Supplements – Stand-Up or Flat Design

High-barrier 3-seal flexible packaging bag with aluminum foil layer—ideal for instant coffee, tea, milk powder, and nutritional supplements. Moisture-resistant, printable, and compatible with automated filling lines.

Features

  • Aluminum Foil Barrier、Three-Side Heat Seal、High-Print Quality、Tear Notch or Zip-Lock、Stand-Up Structure、Custom Sizes & Colors

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Overview

The 3-seal bag is the preferred packaging format for instant beverages and nutritional powders—especially in Japan, South Korea, and China. Its aluminum foil barrier layer blocks oxygen, moisture, and light, ensuring maximum shelf life and flavor retention.

With three-side sealing, it provides excellent protection while allowing full branding on the front panel. The stand-up structure keeps the bag upright on shelves, improving visibility and accessibility.

Perfect for retail stores, e-commerce platforms, and export markets, this bag combines functionality, aesthetics, and cost-efficiency.


Product Features

  • Aluminum Foil Barrier: PET/AL/PE laminate blocks O₂, moisture, and UV light—extends shelf life up to 24 months.

  • Sealing Technology: Three-side heat seal with reinforced edges—resists tearing during handling.

  • Material Options:

    • Standard Barrier: PET/PE (for non-sensitive products)

    • High Barrier: PET/AL/PE (ideal for coffee, tea, protein powder)

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

  • Print Excellence: Full-color offset printing; supports Japanese, Chinese, English text, barcodes, and regulatory symbols.

  • Finishing Options: Tear notch, zip-lock closure, hang hole, or resealable strip.

  • 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 labeling 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: ≥25 N/mm (tested per ASTM F88)

  • Moisture Barrier: WVTR ≤3 g/m²/24h (with PE liner)

  • Oxygen Barrier: OTR ≤2 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
Instant CoffeePET/AL/PE90 μm8×12 cmFront Only50g
Milk PowderPET/AL/PE100 μm10×15 cmFront + Back100g
Protein PowderPET/VMPET/PE110 μm12×18 cmFull Surface200g
Tea MixPET/PE80 μm7×10 cmFront Only30g

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


Product Applications

  • Food & Beverage: Instant coffee, tea, milk powder, plant-based drinks

  • Nutrition: Protein powder, collagen, vitamin mixes, weight loss supplements

  • E-commerce: Taobao, JD.com, Amazon, Shopee

  • Retail: Supermarkets, convenience stores, specialty shops

  • Export: Certified for EU, US, ASEAN markets

Used by beverage brands, health food companies, and online retailers worldwide.


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