4-Side Seal Flexible Pouch for High-Value & Sensitive Products
Fully perimeter-sealed flexible pouch with superior leak resistance and 360° print space—ideal for pharmaceuticals, premium snacks, spices, and single-serve portions. High-barrier, tamper-evident, and automation-ready
Features
- `Full 4-Side Seal` | `360° Print Area` | `Tamper-Evident Seal` | `High-Barrier Lamination` | `Precision Die-Cut` | `FDA/EU Compliant`
Buy packaging and get free QR Tracking SaaS for anti-counterfeiting, traceability, inventory management, and consumer insights.
Product Description
Overview
The 4-side seal pouch represents the next evolution in flexible packaging—where maximum seal integrity meets full visual branding. Unlike standard pillow bags (3-side sealed), this design seals both top and bottom independently while enclosing the entire perimeter, creating a robust “pocket” that resists bursting, leakage, and tampering. Perfect for automated horizontal form-fill-seal (HFFS) lines, it’s widely used in pharma, gourmet food, and personal care for its reliability and aesthetic versatility.
Product Features
Full Perimeter Sealing: Four independent heat seals = zero seam gaps, ideal for powders, liquids, or volatile aromas.
360° Branding Surface: Entire front, back, and side panels printable—no wasted space.
Tamper-Evident Options: Peelable seals or tear tapes for regulatory compliance (e.g., FDA 21 CFR).
Advanced Material Structures:
Standard Barrier: PET/PE (for dry goods)
Ultra-High Barrier: PET/AL/PE or PET/VMPET/PE (blocks O₂, moisture, light)
Sustainable: Mono-PE or PE/PE recyclable films (certified by RecyClass)
Precision Finishing: Rounded corners, micro-perforations, hang holes, or easy-peel zones via die-cutting.
Regulatory Ready: Compliant with FDA, EU 10/2011, GB 4806, and USP Class VI (pharma grade).
Product Advantages
Leak-Proof Confidence: Eliminates risk of sifting or spillage during shipping—critical for powders and granules.
Premium Shelf Presence: Uninterrupted graphics create a “wrap-around” brand experience.
Automation Optimized: Runs smoothly on HFFS machines at high speeds (50–200 pcs/min).
Portion Control: Ideal for single-serve, trial packs, or travel-sized products.
Quality Assurance
Seal Strength: ≥15 N/15mm (peel strength); passes vacuum leak test at -80 kPa.
Barrier Performance:
WVTR ≤ 0.5 g/m²/24h (with AL layer)
OTR ≤ 0.5 cm³/m²/24h (with AL layer)
Clean Production: ISO 15378 (pharma) or BRCGS AA+ certified cleanroom available.
Ink Safety: Low-migration inks compliant with Swiss Ordinance and EuPIA guidelines.
Traceability: Each production batch assigned unique QR code linked to material certs and QC reports.
Product Specifications
| Application | Typical Structure | Thickness (μm) | Size Range (W×H) | Seal Type | Special Options |
|---|---|---|---|---|---|
| Pharmaceutical Blister Backing | PET/AL/PE | 90–120 | 50×70 – 120×180 | Hermetic Heat Seal | Tamper-Evident Tape |
| Gourmet Spices | PET/VMPET/PE | 80–110 | 60×90 – 100×150 | Peelable Top Seal | Spot UV + Matte Finish |
| Single-Serve Coffee | PET/PE | 70–90 | 70×100 – 90×130 | Standard 4-Side Seal | Easy-Tear Notch |
| Organic Snack Trial | Recyclable PE/PE | 85–110 | 80×110 – 110×160 | Resealable Zipper* | Kraft Paper Effect |
✅ Note: *Zipper requires modified 4-side + top channel design. Minimum order: 20,000 pcs (digital) / 100,000 pcs (rotogravure).
Product Applications
✅ Pharmaceuticals: Blister pack backing, powder sachets, medical device wraps ✅ Premium Food: Single-origin coffee, matcha, truffle salt, freeze-dried fruit ✅ Spices & Seasonings: Curry blends, herb mixes, bouillon cubes ✅ Personal Care: Face mask sheets, serum sachets, travel shampoo ✅ Electronics: Desiccant packs, component anti-static wraps
Preferred by health brands, luxury food startups, and regulated industries where seal integrity = product safety.
