Method for improving the sealing strength of POF shrink film

How to improve the sealing strength of POF shrink film Hello everyone, I am the author, do you know shrink film? Today the author will analyze it specifically for you, hoping to help you. Pof shrink film has been widely used in the packaging industry. It has the characteristics of high transparency, good gloss and large shrinkage rate. However, sometimes the strength may be insufficient in use. The following author teaches you how to improve pof shrink film sealing Strength method: 　1. During the heat sealing process, the heat sealing pressure should be moderate, because uneven pressure may cause bubbles in the heat sealing part and affect the sealing strength.　2. The longer the heat-sealing time is, the stronger the bonding between the heat-sealing layers will be, but it is not suitable for too long to avoid wrinkles. 3. When heat sealing pof shrink film, you need to adjust the temperature to half melting temperature. Overheating will melt pof shrink film and affect the use. If you want to know more about the latest industry information about shrink film, please log in to our official website Bring you more practical knowledge.