The phenomenon of high content of slip agent in PE protective film and the solution
Nov 20, 2022
When the PE film passes through the high-voltage discharge roller during the production process, local breakdown of the film may be caused due to various reasons. This phenomenon is often a vertical strip, and the position is generally fixed.
The surface tension value of the PE film at the poor heat seal is generally very high. Because the broken heat cover forms a substance with polar groups like the composite surface, this substance does not have heat sealability. Therefore, in the The phenomenon of local poor heat sealing occurs during bag making or automatic packaging. In order to avoid the occurrence of this phenomenon, a detection item of the surface tension value of the composite surface is added to the PE film when it enters the factory for inspection.
