How to distinguish PVC heat shrinkable film

When it comes to PVC heat shrinkable film, everyone should be familiar with it. PVC heat shrinkable film is commonly used in the packaging of doors and windows, aluminum, electronic appliances, daily necessities, stationery, toys, plastic hardware, glass ceramics, etc., to make its appearance more Bright and beautiful, improve product packaging grade, and protect the product from dust and scratches. PVC heat shrinkable film is currently an ideal film packaging material, so how should we distinguish between the dazzling products on the market? A good PVC heat shrinkable film should have the following conditions: 1. Transparent and high gloss, can clearly display the appearance of the product, improve the exhibition effect, and reflect a higher commodity file 2. Good barrier properties, excellent moisture and dust resistance 3. Good Flexibility and stretchability, strong wrapping ability 4, high puncture resistance 5, strong shrinkage memory function, good shrinkage and tightness 6, good overall stability of the packaged object, reducing damage and collapse during transportation I believe everyone is aware of phenomena such as, bulk packaging, etc. The toughness of PVC heat shrinkable film is very important, so how to distinguish it? The quality of the shrink film is mainly reflected in the toughness. It is generally impossible to see the quality of the shrink film with the eyes. It looks the same, or the color is different. The method of identification: After the shrink film is packaged, write the date and wait for 3 ~4 days later, use a pen to poke a hole. If the poke place is only a hole, then the quality of the shrink film is good and the toughness is good. Poor PVC heat-shrinkable film will burst a long crack if it is poked up. It has poor toughness and cannot provide protection. Previous: Application of stretch stretch film in transportation Next: Application range of POF shrink film