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The reason of poor shrinkage effect of stretch film
Source:Mingye Packing Materials Co.,Ltd   Release date:2020-08-31   Hits:129
Nowadays, there are many kinds of stretch films on the market, which leads to the quality of stretch films. When we buy stretch films, we should pay attention to the four characteristics of stretch films, stretching force, self-adhesiveness, and toughness. And the price.
Stretching force is the ability of a stretched film to stretch elastically after receiving a tensile force without damaging its ability to retract. A stretched film with good stretch force can better protect the packaged product.
Self-adhesiveness refers to the adhesiveness of the stretch film and the packaged goods after contact. The good adhesive performance allows the stretch film to hold the goods and not loose when packaging the goods.
Toughness is the comprehensive performance of stretch film puncture resistance and tear resistance. The best way to measure stretch film toughness is to poke the stretch film with your hand or pen. The toughness directly affects the use of the stretch film.
The shrinkage effect of the stretch film directly affects its use, so it is necessary to find out the reason for the poor shrinkage effect of the stretch film. The poor shrinkage effect of the stretch film is mainly caused by the following reasons:
1. Temperature issues
Each kind of stretched film has its unique adaptation temperature, especially the stretched film with larger shrinkage has very high temperature requirements.
2. Fast
After reaching a certain temperature, the speed is adjusted. If the speed is adjusted too fast, the stretched film will not shrink well. If the speed is adjusted, the film will be burnt, so the appropriate speed is also an important factor affecting the shrinkage effect.
3. Wind direction problem

The wind direction determines the heated part of the product surface, especially the key part of the sleeve shrinking machine. The required temperature is relatively high, so the wind direction adjustment of the shrinking machine is very important.

stretch film manufacturer

Dongguan Ming Ye Packing Materials Co., Ltd. was founded in 2007, is a professional packing products production enterprises with rich experience. The factory is located in Dongguan City with convenient transportation, adjacent to Shenzhen & Guangzhou City. Our main products include:Stretch Wrap Film,Strapping Band,Packing Tape,Tying Twine,Packing Machine and other packing materials.we have perfect customizd service and after-sales service,if have any qustions,please feel free contact us.    

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Sha hu kou district,Changping Town,Dongguan,PRC

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