DGN Film is a Professional Plastic & Heat Shrinkable Film Manufacturer since 2005.

How to improve the sealing strength of shrink film

2021-03-04

DGN Film

Methods to improve the sealing strength of shrink film Release time: 2018-12-06 Pof shrink film has been widely used in the packaging industry. It has the characteristics of high transparency, good gloss and large shrinkage, but sometimes it may appear in use In the case of insufficient strength, the following pof shrink film manufacturers teach you how to improve the sealing strength of pof shrink film: 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 also not suitable for too long to avoid wrinkles. 3. When heat sealing the pof shrink film, it is enough to adjust the temperature to the semi-melting temperature. Overheating will melt the pof shrink film and affect its use. Heat shrinkable film label Previous: Where is the function of heat shrinkable label?

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