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What Are the Factors Affecting the Contraction Effect of POF Shrink Film?

Dec. 26, 2017

Many customers who use POF Shrink Film, when the whole packaging process is completed, the effect of packaging is not good, it is considered the quality of shrink film is not good, actually, there are several factors that affect the shrinkage effect of Polyolefin Film:

1.Quality is the most important, new raw material and material with added return material is different in transparency and shrinkage. The cost of POF shrink film plus return material is low, so it is easy to attract customers, if the customer has high requirements for packaging, also check the quality of shrink film.

2.Adjust the temperature of the shrinking furnace in the process of shrinkage. The shrinkage temperature range of POF is the range of 130-180 degrees, but the specific temperature depends on the shrinkage furnace, this requires users to debug several times to find the most suitable temperature. If the temperature is too high, the packaging film is easy to crack. If the temperature is low, polyolefin shrink film is easy to appear unevenly phenomenon. 

POF Shrink Film