High-Barrier Bag: FFS Heavy-Duty Film
5/7-layer EVOH or aluminum foil co-extrusion. WVTR <1 g/m²/day, OTR <1 cc/m²/day.
High-Barrier Bag Overview
5/7-layer EVOH or aluminum foil co-extrusion. WVTR <1 g/m²/day, OTR <1 cc/m²/day.
[IMAGE: High-Barrier Bag FFS Film]
Product Features
Ultra-low Permeability
EVOH structure WVTR <1 g/m²/day, OTR <1 cc/m²/day. Aluminum foil near-zero permeability.
Multi-layer Synergy
Outer PE for strength, middle EVOH/Alu for barrier, inner PE for heat sealability and food safety.
Extended Shelf Life
Food raw materials 3-5x longer. Chemicals prevent caking and oxidation.
Optional Vented
Micro-porous venting for gas-producing materials. Prevents bag bursting.
Technical Parameters
| Parameter | Specification |
|---|---|
| Structure | PE/Tie/EVOH/Tie/PE (5-layer) or PE/Tie/EVOH/Tie/PA/PE (7-layer) |
| Film Thickness | 120 – 250 µm |
| Barrier Performance | WVTR <1 g/m²/day; OTR <1 cc/m²/day (23°C, 0%RH) |
| Heat Seal Strength | ≥40 N/15mm |
| Food Grade | Inner layer compliant with FDA 21 CFR 177.1520 |
| Printing | Up to 6 colors, recommended on outer side |
Typical Applications
- Food-grade flour, sugar, starch
- Precision chemical powders (TiO₂, carbon black)
- Pharmaceutical intermediates and battery materials
Get Your High-Barrier Bag Solution
Customized for your packaging line and material requirements.