There are various types of food packaging, among which the use of heat shrink film has greatly increased. Now let's

 briefly talk about PVC shrink film. PVC shrink film has poor transparency, good flexibility, and strong tensile strength, 

and is suitable for packaging heavy products with shrink film. PVC shrink film is suitable for large-scale automatic shrink 

packaging of items such as cans, glass bottles, beer, mineral water, infusion glass bottles, etc. Whether it is in the 

promotion packaging of the product or in the packaging and transportation of the product, it has played a very good role.

With the rapid development of China's economy, the market share of heat shrink packaging testing machines is gradually 

increasing, and more and more fields are seeing the emergence of heat shrink packaging machines.

Paratronix Industrial Technology is a domestic manufacturer of heat shrink film testing instruments. The RSY-R2 heat shrink 

tester developed and produced is suitable for testing the heat shrink performance of heat shrink films and PVC shrink films. 

The editor suggests that when purchasing heat shrink films and machines, various performance indicators such as tensile 

strength, elongation, and heat shrink rate should be tested to provide heat shrink packaging efficiency while reducing 

production costs and ensuring user safety and convenience.