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Packaging
Material solutions for high-performance flexible packaging films.
Politem develops PA-based material solutions for monolayer PA films and PA/PE multilayer structures requiring reliable film extrusion, toughness, barrier performance and thermoformability.
Performance Across the Film Structure
Flexible packaging films must combine stable extrusion with mechanical strength, puncture resistance, flexibility and controlled barrier performance. In PA/PE structures, the PA layer supports toughness and oxygen-barrier performance, while the PE layer contributes sealability and moisture resistance. The final structure is developed around the converting process, layer configuration and packed-product requirements.
TYPICAL APPLICATIONS
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• Monolayer PA films |
• Vacuum-packaging films |
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• High-puncture-resistance films |
• Barrier packaging structures |
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• Deep-draw flexible packaging |
• Flexible food-packaging films |
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• Non-food flexible packaging |
• Industrial flexible-film applications |
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• PA/PE multilayer films |
Material and Technology Portfolio
PA-based material solutions are selected according to film structure, layer thickness, extrusion process, draw requirements and end-use performance.
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Material Platform |
Relevant Technologies |
|---|---|
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PA6 |
Strength, toughness, puncture resistance, oxygen-barrier performance and thermoformability for film applications |
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PA Copolymers |
Flexibility, drawability and processing adjustment for selected monolayer and multilayer film structures |
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PA/PE Film Solutions |
Multilayer structures combining the mechanical and barrier contribution of PA with the sealability and moisture resistance of PE |
Performance Priorities
The required property balance depends on the film architecture, layer ratio, processing route, packaging conditions and target shelf-life performance.
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• Stable film-extrusion processing |
• Melt strength and thickness uniformity |
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• Toughness and puncture resistance |
• Tensile and tear performance |
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• Flexibility and drawability |
• Thermoforming performance |
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• Oxygen-barrier performance |
• Sealability in PA/PE structures |
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• Optical and surface consistency |
• Moisture control before processing |
Application Driven Development
Development considers the extrusion process, monolayer or multilayer structure, PA and PE layer ratio, film thickness, draw depth, sealing conditions and required mechanical and barrier performance. Moisture control and viscosity are evaluated as key processing variables for PA-based films.
TESTING AND VALIDATION
Material characterisation may include FTIR, density, MFR or MVR, relative viscosity and water-content evaluation, together with relevant mechanical and thermal testing. Film-specific puncture, tear, barrier, sealing and migration tests are defined according to the application and may be coordinated externally where required. Testing capability does not by itself constitute food-contact approval or final-package certification.
Develop the Right Material for Your Packaging Film
Share your film structure, extrusion process, layer configuration and performance targets with our technical team.