Full Guide to Shrink Film: Basics, Types & Eco-Friendly Biodegradable Shrink Film
author: Lu
2026-07-16
Basic Definition of Shrink Film
Shrink film is a flexible polymer packaging material.
It wraps goods tightly after heating treatment.
It delivers dust-proof, moisture-proof and anti-scratch protection.
It is widely used for product bundling and pallet packaging.
Heat shrink film is the mainstream category of shrink film.
It relies on thermal contraction to fit product outlines perfectly.
Working Principle of Heat Shrink Film
Heat changes the molecular structure inside heat shrink film.
Molecules stretch and rearrange when absorbing heat energy.
The film shrinks evenly after cooling down.
It creates tight wrapping force on all sides of packed items.
No extra adhesive tape is needed for basic bundling.
Stable shrink tension avoids loose wrapping during transport.
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Differences Between Traditional PE Shrink Film and Biodegradable Shrink Film
Traditional PE shrink film comes from petroleum-based raw materials.
It cannot break down naturally after disposal.
It generates long-term white plastic pollution.
Biodegradable shrink film adopts plant-based composite raw materials.
It retains the same physical performance as regular PE shrink film.
It fully degrades without leaving harmful plastic residues.
Raw Material Composition of Biodegradable Shrink Film
Biodegradable shrink film mixes PLA and PBAT as core materials.
Raw materials are extracted from renewable agricultural crops.
No non-degradable petroleum plastic additives are added.
Material formula can be adjusted for different shrink ratios.
All raw materials meet global food contact safety standards.
The composite formula ensures good toughness and anti-puncture performance.
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Complete Degradation Features of Biodegradable Shrink Film
Biodegradable shrink film decomposes in industrial compost environments.
It turns fully into water and carbon dioxide within 180 days.
No microplastic fragments remain after full degradation.
It does not damage soil or pollute underground water.
Degradation speed depends on compost temperature and humidity.
It supports circular economy and plastic waste reduction targets.
Main Application Scenarios for Heat Shrink Film & Biodegradable Shrink Film
Heat shrink film packs multi-pack bottled water and beverage sets.
It bundles dairy products, daily chemicals and food cartons.
It serves as pallet shrink wrap for warehouse logistics transport.
Printable composite roll film supports customized brand packaging.
Biodegradable shrink film fits eco-conscious food and beverage brands.
It meets packaging rules for supermarkets and export retail chains.
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Global Authoritative Certifications for Qualified Biodegradable Shrink Film
DIN-EN13432 certification proves EU compostable qualification.
BPI certification meets North America biodegradable standards.
FDA certification confirms safe direct contact with food products.
REACH certification complies with EU chemical material limits.
All test reports are issued by third-party authoritative labs.
Certified biodegradable shrink film passes cross-border customs inspection smoothly.
Core Advantages of Choosing Biodegradable Heat Shrink Film
Biodegradable heat shrink film matches common shrink wrapping machines.
No extra equipment modification is required for production lines.
It has high transparency to display product appearance clearly.
Strong tensile strength prevents tearing during packaging.
It helps brands fulfill global environmental protection policies.
It reduces corporate carbon footprint and improves brand image.
Official Website
Pallet Shrink Film Full Guide & Eco Upgrade
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