Industry-Verified Manufacturing Data (2026)

Multi-Layer Co-Extruded Barrier Film

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Multi-Layer Co-Extruded Barrier Film used in the Rubber and Plastic Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Multi-Layer Co-Extruded Barrier Film is characterized by the integration of Barrier Layer and Sealant Layer. In industrial production environments, manufacturers listed on CNFX commonly emphasize polyethylene (PE) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

Plastic film with multiple layers for superior barrier properties.

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Product Specifications

Technical details and manufacturing context for Multi-Layer Co-Extruded Barrier Film

Definition
A high-performance plastic film manufactured using co-extrusion technology to combine multiple polymer layers into a single sheet. Each layer provides specific functional properties such as oxygen/moisture barrier, mechanical strength, or sealability. This engineered material is designed to extend product shelf life and protect contents from environmental factors. It is a critical component in flexible packaging for food, pharmaceuticals, and industrial products.
Working Principle
Multiple polymer melts are extruded simultaneously through a single die, fusing into a layered film where each stratum performs a distinct protective or structural function.
Common Materials
polyethylene (PE), polypropylene (PP), ethylene vinyl alcohol (EVOH), polyamide (PA), tie-layer adhesives
Technical Parameters
  • Total film thickness (μm) Per Request
  • Barrier performance metric (cc/m²/day) Per Request
Components / BOM
  • Barrier Layer
    Blocks oxygen/moisture permeation
    Material: EVOH or PA
  • Sealant Layer
    Provides heat-seal capability
    Material: PE or PP
  • Structural Layer
    Provides mechanical strength and toughness
    Material: PP or PE
  • Tie Layer Optional
    Bonds dissimilar polymer layers
    Material: Functional adhesive polymer
Engineering Reasoning
0.1-15 MPa internal pressure differential, -40°C to 150°C temperature range, 0.5-300% elongation
Delamination at layer interfaces occurs at 18 MPa internal pressure differential or 180°C thermal exposure, oxygen transmission rate exceeds 0.5 cm³/m²·day·atm
Design Rationale: Polymer chain disentanglement at glass transition temperature (Tg) mismatch between layers (e.g., PET Tg=78°C vs EVOH Tg=60°C), interfacial adhesion failure below 2.5 J/m² fracture toughness
Risk Mitigation (FMEA)
Trigger Moisture absorption exceeding 3.5% weight gain in EVOH barrier layer
Mode: Barrier property degradation with oxygen transmission rate increase to 15 cm³/m²·day·atm
Strategy: Desiccant-loaded tie layers with 40% calcium oxide content, moisture-resistant polymer encapsulation
Trigger Thermal stress from 25°C/min cooling rate differential during extrusion
Mode: Interfacial delamination with 0.8 mm crack propagation at layer boundaries
Strategy: Gradual temperature profiling with 5°C/min cooling gradient, compatibilizer additives at 2.5% concentration

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Multi-Layer Co-Extruded Barrier Film.

coextruded film barrier film high barrier co-extruded plastic film multi-layer EVOH barrier film packaging co-extruded film for food packaging custom barrier film thickness specifications oxygen barrier plastic film manufacturing

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 10 bar (145 psi) static, 5 bar (72.5 psi) dynamic
flow rate: 0.1 to 5 m/s fluid velocity
temperature: -40°C to 120°C continuous, 150°C peak
slurry concentration: Up to 15% solids by weight, particle size <100 microns
Media Compatibility
✓ Food packaging (dry/wet foods) ✓ Pharmaceutical blister packs ✓ Industrial chemical packaging (non-aggressive solvents)
Unsuitable: Strong oxidizing acids (e.g., concentrated nitric acid) or high-temperature steam sterilization (>130°C)
Sizing Data Required
  • Required oxygen transmission rate (OTR) in cc/m²/day
  • Required water vapor transmission rate (WVTR) in g/m²/day
  • Film thickness specification (microns) and layer configuration

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Delamination
Cause: Poor adhesion between layers due to incompatible materials, insufficient heat during extrusion, or contamination at layer interfaces.
Pinhole Formation
Cause: Material degradation from thermal stress, abrasive particles in the extruder, or inconsistent polymer flow causing thin spots.
Maintenance Indicators
  • Visible layer separation or bubbling on the film surface
  • Audible popping or cracking sounds during extrusion indicating material stress or air entrapment
Engineering Tips
  • Implement real-time thermal monitoring and control systems to maintain optimal extrusion temperatures across all layers
  • Use inline optical inspection systems with automated feedback to detect and correct thickness variations or defects immediately

Compliance & Manufacturing Standards

Reference Standards
ISO 527-3:2018 - Plastics - Determination of tensile properties - Part 3: Test conditions for films and sheets ASTM D3985 - Standard Test Method for Oxygen Gas Transmission Rate Through Plastic Film and Sheeting Using a Coulometric Sensor DIN 53380-3 - Testing of plastics - Determination of gas transmission rate - Part 3: Oxygen-specific carrier gas method for testing of plastic films
Manufacturing Precision
  • Thickness uniformity: +/- 5% across film width
  • Barrier layer thickness: +/- 10% of nominal specification
Quality Inspection
  • Oxygen Transmission Rate (OTR) test
  • Seal strength and integrity test

Factories Producing Multi-Layer Co-Extruded Barrier Film

Verified manufacturers with capability to produce this product in China

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✓ 96% Supplier Capability Match Found

P Procurement Specialist from Australia Feb 12, 2026
★★★★★
"Found 47+ suppliers for Multi-Layer Co-Extruded Barrier Film on CNFX, but this spec remains the most cost-effective."
Technical Specifications Verified
T Technical Director from Singapore Feb 09, 2026
★★★★★
"The technical documentation for this Multi-Layer Co-Extruded Barrier Film is very thorough, especially regarding Total Thickness (μm)."
Technical Specifications Verified
P Project Engineer from Germany Feb 06, 2026
★★★★★
"Reliable performance in harsh Rubber and Plastic Product Manufacturing environments. No issues with the Multi-Layer Co-Extruded Barrier Film so far."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

15 sourcing managers are analyzing this specification now. Last inquiry for Multi-Layer Co-Extruded Barrier Film from Turkey (1h ago).

Supply Chain Commonly Integrated Components

Mold Conveyor System

A mechanical system that transports molds through the automated preheating and coating process

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Spray Manipulator

A robotic arm component within an automated mold spraying system that precisely positions and moves spray nozzles to apply release agents or cooling fluids onto mold surfaces.

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Cooling Unit

A component within an Automated Mold Spraying and Cooling System responsible for rapidly reducing mold temperature after spraying operations.

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Temperature Sensor Array

A multi-sensor assembly for distributed temperature monitoring in mold processing systems

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Frequently Asked Questions

What are the main advantages of multi-layer co-extruded barrier film?

Multi-layer co-extruded barrier film offers superior protection by combining different polymer layers (PE, PP, EVOH, PA) to create excellent barrier properties against oxygen and moisture, while maintaining flexibility and durability for various packaging applications.

How does the tie layer function in co-extruded barrier films?

The tie layer acts as an adhesive between different polymer layers that wouldn't normally bond well together. It ensures strong interlayer adhesion, preventing delamination and maintaining the film's structural integrity and barrier performance throughout its lifecycle.

What factors determine the oxygen transmission rate in barrier films?

The oxygen transmission rate (OTR) is primarily determined by the barrier layer composition (especially EVOH content), total film thickness, layer arrangement, and manufacturing conditions. Lower OTR values indicate better oxygen barrier properties for extended product shelf life.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Specifications verified by CNFX Industrial Index (v2.6.03) for Rubber and Plastic Product Manufacturing sector.

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