How to distinguish PVC heat shrinkable film

PVC heat shrinkable film is widely used in the packaging of doors and windows, aluminum profiles, electrical appliances, daily necessities, stationery, toys, plastic hardware, glass ceramics and other commodities to make its appearance more beautiful, improve the packaging grade of the product, and protect the product during transportation It is not affected by dust, scratches, etc. So how do we distinguish PVC heat shrinkable film? The editor of Guangyi compiled the following points:

1. PVC heat shrinkable film has high transparency and good gloss, can clearly display the appearance of the product, improve the display and sales effect, and has good barrier properties, moisture retention and dust resistance.

2. It has good flexibility and ductility, strong packaging ability, and high permeability. Good shrinkage and compactness.

3. The overall stability of the packaging is good, which reduces damage, collapse, bulk packaging and other phenomena during transportation.

4. The quality of the shrink film is mainly reflected in its toughness. Because the quality of the shrink film is generally invisible to the eyes, it still looks the same or the color is different. After packaging the shrink film, write the date, wait 3 times after 4 days, and poke a hole with a pen. If there is only a hole in the poke, the shrink film is of good quality and toughness. After being punctured, the PVC heat shrinkable film will burst into long cracks, which has poor toughness and cannot provide protection.