We often purchase a variety of beverages, each with different flavors and packaging designs to choose from. But what material is the label on the packaging made of? It's made of print-grade PVC shrink film, which, as the name suggests, is used for printing and can be processed into printed labels.

Most beverages on the market use PVC labels, such as those on bottles of black tea, green tea, and mineral water. PVC heat shrinkable film is a synthetic material with heat resistance, toughness, and extensibility. The top layer is paint, the main component in the middle is polyethylene, and the bottom layer is a back-coated adhesive. With the widespread use of PVC heat shrinkable film in daily life, manufacturers should adhere to simple, practical, and environmentally friendly packaging design from the outset. The shrink wrap packaging should cater to the aesthetic and psychological perceptions of different consumer groups. Once heated, PVC heat shrinkable film shrinks to tightly adhere to the surface of the packaged item. It also boasts high strength, good transparency, excellent waterproof, moisture-proof, and anti-contamination properties, as well as superior electrical insulation characteristics. The performance of the film is primarily determined by the chemical properties of the PVC material and the structure of the separating film, with significant influence from operational factors. These factors increase with the potential difference during the separation process (such as pressure, concentration, and potential differences).