Multi-Layer Barrier Bags for Liquids

Professional BIB Packaging Solutions

Composite Permeation Control Engineering

These bags utilize films composed of 5 to 9 co-extruded or laminated layers, each providing a distinct function (e.g., sealant, strength, barrier). The barrier layer—typically EVOH or Alu-Foil—is positioned centrally to maximize protection against gas and moisture transmission. This composite structure ensures verifiable protection, achieving ultra-low Oxygen Transmission Rates (OTR) of $ < 0.05 \text{ cc}/(100 \text{ in}^2 \cdot \text{day})$, critical for extending the shelf life of oxidation-sensitive products.

Jingle Packaging Core Advantages

Leveraging 15+ Years of Expertise in Liquid Flexible Packaging Solutions

Strategic Location

Located in Suzhou's Wujiang Economic Development Zone, just 100km from Shanghai, providing excellent logistics access to global markets and supply chain efficiency.

Technical Expertise

15+ years of industry experience with deep technical knowledge across food, beverage, and industrial liquid packaging applications.

Advanced Production

State-of-the-art bag-in-box production lines capable of customized manufacturing to meet specific client requirements and market demands.

Complete Solutions

End-to-end services including packaging development, filling equipment support, and comprehensive after-sales service for complete customer satisfaction.

Quality Assurance

Rigorous quality control processes ensuring all packaging products meet international standards for safety, durability, and performance.

Customer Partnership

Collaborative approach working closely with clients to explore new market opportunities and develop innovative packaging solutions.

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Integrated Protection, Maximum Shelf Life

LPS is expert in engineering multi-layer flexible packaging that delivers performance often matching rigid metal or glass containers. Our barrier bags are the core solution for products requiring long ambient shelf life or protection from light and gas ingress, providing a lightweight yet highly effective preservation mechanism for liquid food, pharmaceutical, and chemical goods.

Specification Details

Layer Count5, 7, or 9 Layers (Co-extruded/Laminated)
Primary BarrierEVOH or Aluminum Foil
OTR Performance$ < 0.05 \text{ cc}/(100 \text{ in}^2 \cdot \text{day})$ (Ultra-High Barrier)
FormatBag-in-Box Liners, Stand-Up Pouches
Compatible Liquid TypesOxidation-sensitive beverages, aseptic foods, high-fat oils, specialty polymers.
  • Q: Does the aluminum layer cause issues with metal detection systems?
  • A: When aluminum foil is used as a barrier, the packaged product will trigger standard metal detectors. We offer EVOH-based barrier films as a non-metallic, high-barrier alternative for clients requiring metal detection compatibility.
  • Q: How is delamination prevented in laminated bags?
  • A: We utilize high-performance, solvent-free adhesives and optimize the cure time after lamination, ensuring a permanent chemical bond between the film layers, preventing separation under thermal or physical stress.

Structural Components

  • Laminate: PET/NYLON/EVOH/PE structure or Foil laminate.
  • Tie Layers: Chemical bonding layers used in co-extrusion to adhere incompatible polymers (e.g., PE to EVOH).
  • Sealing Layer: Innermost PE or PP layer optimized for clean, high-strength heat seals.
  • Closures: Integrated gland and valve system with barrier components.

Material & Assembly Process

Materials: EVOH, Nylon, PET, LLDPE, and Adhesive Resins. Process involves Co-Extrusion (extruding multiple polymers simultaneously) or Lamination (bonding pre-formed films with adhesive), followed by precise Bag Conversion and Sealing.

About Suzhou Jingle Packaging

Located at No. 758, Longqiao Road, Wujiang Economic Development Zone, Suzhou, we are a leading China Multi-Layer Barrier Bags for Liquids Supplier and Wholesale Multi-Layer Barrier Bags for Liquids Company. Our strategic location provides easy access to major transportation routes.

We operate advanced bag-in-box production lines designed in-house, enabling customized specifications to meet diverse client requirements. Our commitment to innovation and quality has established us as a trusted partner in flexible packaging solutions.

Suzhou Jingle Packaging manufacturing facility

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