Heat Shrink Film

Heat shrink film is a type of plastic film that shrinks tightly around packaged items when heated. Common materials include PVC, POF, and PE. In foreign trade, it is widely used for outer packaging or collective packaging of food, daily necessities, electronics, toys, etc., providing dust protection, moisture resistance, fixation, and display. Usage scenarios include: reinforcement of export goods, pallet wrapping, and individual product shrink wrapping. Precautions: Different materials have different shrinkage temperatures (e.g., POF about 140-160°C, PE requires higher), and specifications (thickness, width, shrinkage rate, transparency) must be confirmed with customers; avoid high temperatures during transportation to prevent pre-shrinkage; some countries (such as the EU) have environmental restrictions on PVC, so POF or PE is recommended. Difference from ordinary stretch film: heat shrink film requires heating to shrink, while stretch film relies on stretching and self-adhesion; compared with cling film, heat shrink film has higher strength and becomes tighter after shrinking. When quoting in foreign trade, material, size, thickness, shrinkage rate, and packaging method must be clearly specified.