Overcoming Asymmetric Shrinkage in POF Folded Films
author: Shenzhen Guangda Yuan Film Co., Ltd.
2025-06-04
Struggling with uneven shrinkage in POF folded films? Guangdayuan's innovative three - layer co - extrusion technology, combined with nano - additive modification, provides consistent shrink performance for critical applications.
The core of the solution lies in Guangdayuan's proprietary PP molecular chain regulation (isotacticity >95%), enhancing thermal stability. The middle layer, reinforced with 5% calcium carbonate, balances shrinkage stress, while outer layers with UV - 531 stabilizers resist aging. Third - party tests confirm that films maintain 80% tensile strength after 800 - hour QUV aging, with color difference ΔE <3.
These films serve high - demand sectors: automotive parts (battery cable insulation), where uniform shrinkage prevents thermal damage; medical device packaging (sterile equipment), requiring airtight seals; and industrial logistics (heavy - duty tool wrapping), withstanding 1.5m drop tests. The hot - melt adhesive coating (2 - 3g/m²) ensures seal strength of 20N/15mm at 150 - 170℃, minimizing post - shrinkage failures.
Backed by ISO 14001 certification, Guangdayuan's films incorporate biodegradable additives (0.5% degradation masterbatch), achieving 60% degradation in 180 days under industrial composting. Their partnership with Harbin Institute of Technology drives continuous R & D, ensuring POF folded films deliver both shrink uniformity and environmental responsibility.
Precision Solutions for Uneven Shrinkage in POF Folded Films
Solving Uneven Shrinkage in POF Folded Films
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