Five characteristics of PVC in heat shrinkable film

Five characteristics of PVC heat shrinkable film

Commonly used PVC heat shrinkable film is made of PVC resin mixed with more than ten auxiliary materials and then blown twice. It has the characteristics of good transparency, easy shrinkage and high strength, the shrinkage rate can be freely adjusted according to the needs of users, and the operability is strong.

First, the transparency and luster of PVC heat shrinkable film should be considered. High-quality PVC heat shrinkable film has good transparency and luster, and if viewed in the sun, there will not be too many impurities.

Secondly, when packing in heat shrinkable film, the high-quality shrink film shrinks rapidly, while the poor-quality shrink film shrinks poorly or needs two or three times of heat shrinkage to complete the shrinkage process.

Third, sealing performance: when heat shrinkable film passes through heat shrinkable film packaging machine, PVC heat shrinkable film will crack, wrinkle or have small holes, which is caused by poor sealing performance. High-quality PVC heat shrinkable film has good sealing performance. When the heat shrinkage process is completed, it is very beautiful and can actually achieve the expected shrinkage effect.

Fourthly, puncture resistance, that is to say, shrink film plays a protective role in the process of product transportation. High-quality shrink film, high puncture resistance and difficult puncture.

Fifth, the shrinkage rate has good tightness, which is reflected in the protection of the whole product and parts during shrinkage rate packaging. It will not form discrete or incomplete packaging, which is similar to point 2.