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POF (Polyolefin) shrink film is a multi-layer, high-transparency packaging material made from polyolefin resin.
It is widely used for automatic packaging of food, cosmetics, pharmaceuticals, electronics, and industrial products.
Compared to PVC and PE films, POF offers better shrinkage performance, lower odor, and superior environmental compliance.

The concept of heat shrink packaging technology dates back to 1936, when people began experimenting with rubber film to package perishable foods. By heating, the film tightly wrapped around the product, providing protection and preserving freshness. This pioneering idea laid the foundation for modern heat shrink technology.

POF (Polyolefin) shrink film is a multi-layer co-extruded heat shrinkable film. The name comes from "Polyolefin", typically manufactured using 3-layer or 5-layer co-extrusion technology:

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