Structured Manufacturing Data (2026)

Multi-Layer Co-Extruded Barrier Film

Based on aggregated insights from structured 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 Part
    Blocks oxygen/moisture permeation
    Material: EVOH or PA
  • Sealant Layer Part
    Provides heat-seal capability
    Material: PE or PP
  • Structural Layer Part
    Provides mechanical strength and toughness
    Material: PP or PE
  • Tie Layer Optional Part
    Bonds dissimilar polymer layers
    Material: Functional adhesive polymer

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 Structure

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

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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 basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Rubber and Plastic Product Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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