The core characteristics and material classification of heat shrink film

AUTHOR:ADMIN  TIME:2026/4/27  HITS:7

Heat shrink film is a thermoplastic film that shrinks when heated to tightly wrap products, primarily used for product stabilization, coverage, and protection. Market prices vary significantly depending on material and specifications, such as PE film wholesale prices ranging from approximately 1.00-11.50 RMB/kg, while POF and PVC films are priced by sheet or kilogram.

Core features and material classification
Heat shrink film has become an important material in the packaging industry due to its excellent physical properties, and its production and performance must comply with the national standard GB/T 13519-2016.  

Main Material Categories
PE (Polyethylene): Good flexibility, strong impact and tear resistance, moisture-proof, widely used for collective packaging of liquor, beverages, fabrics, etc.  
POF (Polyolefin Multilayer Coextrusion Film)**: High surface gloss, uniform heat shrinkage, suitable for fully automatic high-speed packaging, serving as a replacement for traditional PVC film.  
PVC (Polyvinyl Chloride): High transparency, excellent gloss, high shrinkage rate, but relatively poor environmental performance, gradually being replaced.  
OPS (Oriented Polystyrene): High strength, great rigidity, strong adaptability to irregularly shaped containers, commonly used for label printing.  
PET (Polyester): Good environmental performance, easy to recycle, often used for heat-seal labels on beverage bottles.

Physical parameters
The thickness typically ranges from 0.015mm to 0.35mm, with a shrinkage temperature range of 120�� to 180��.  
It features high transparency (light transmittance of 80%), dustproof, waterproof, rustproof, and certain anti-counterfeiting functions.

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